ã€Overview】
Shaft rescue equipment operation method refers to the operation method of using suspended equipment to lift trapped persons or lower them when the trapped person cannot escape.
(The name of the parts of shaft rescue equipment and the operating line of the operation method) Article 46-2 Â Â The operation line for the name and operation of the shaft rescue equipment is shown in Figure 10-2 . |
ã€purpose】
The purpose of this section is to illustrate the name and operation of each part of shaft rescue equipment.
(Importance enforcement precautions) Article 46-3 Â Â In addition to the provisions of Article 4 , the following items must be taken into account when carrying out shaft rescue equipment operations. First, choose a flat location to set. Second, effectively fix the tripod bracket. Third, when setting up the tripod, the load should be evenly distributed on the three legs. Fourth, take necessary measures to prevent the tripod from collapsing. 5. When using a tripod whose length can be adjusted, the height of the tripod is limited to the height that can be easily rescued, and the length of one side of the tripod base must not exceed 75% of the length of the tripod . |
ã€purpose】
In addition to the provisions of Article 4 , in order to ensure safety, this article stipulates special precautions for the operation of shaft rescue equipment. The commander must pay attention to the provisions of Article 5 .
[Details]
First, set the location should choose a flat terrain, if must be set in the tilt site, should fully consider the tilt before it can be carried out.
Second, in order to prevent the legs due to load or other causes of displacement or tilt to one side, you must fasten the fixed parts.
Third, because the tripod is easy to tilt or rotate, its center must be equally loaded.
Fourth, in order to prevent the tripod from collapsing, reinforcement measures such as wire ropes and ropes can be adopted.
5. When using a tripod whose length can be adjusted, the height of the tripod is limited to the height that can be easily rescued. The side length of the tripod base must not exceed 75% of the length of the tripod. Attention must be paid to the angle formed by the tripod and the ground.
(handling shaft rescue equipment) Article 46-4   When moving the shaft rescue equipment back to the operation line of the operation, follow the following passwords and instructions. First, the commander issued a "target''', handling" password. After the member I heard the commander’s “objective Ì Ì Ì , carry†password, he picked up the upper part of the tripod and stood upright and stood up. He then proceeded to the target location according to the signal of the “good†member No. 2 and issued it. Stop the signal and stop moving. Third, the number two commander heard members of the "target''', handling" password, picked up the tripod base of the clamp hold the right armpit standing up, before the issue of "good" signal line to the target position, according to One The "stop" signal from the staff stops. After the number four and number three members heard the commander's “objective Ì Ì Ì , carry†password, pick up the clip and a tripod to fix the wire rope and carry it to the target position. Fifth, fourth member of the commanders hear the "target''', handling" the password, pick up the double pulley and conveyed to the target location. |
ã€purpose】
This section specifies the passwords and essentials when carrying the shaft rescue equipment to the operating line.
[Details]
The following table shows the passwords and instructions for transporting the shaft rescue equipment to the operation line.
order | 1 | 2 |
commander | Issued a "target''', handling" password. | Â |
One member | After hearing the commander "target''', handling" the password, pick up the tripod clip to hold the upper part to the right rib standing up. | According to the "good" signal from the second member, it will go to the target position and issue a "stop" signal and stop. |
Second member | After hearing the commander "target''', handling" the password, pick up the tripod base clamp hold on the right rib section standing up. | Send a "good" signal to the target location and stop when the first member issues a "stop" signal. |
Third member | After hearing the commander's "Target Ì Ì Ì , carry" password, pick up the clip and fix the wire rope with a tripod. | Move to the target location. |
Fourth member | After hearing the commander "target''', handling" the password, pick up the double pulley. | Move to the target location. |
Note | When indicating the target location, care should be taken to choose a location that does not affect the players being operated and the surrounding players. | Â |
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(Assembly and inspection of shaft rescue equipment) Article 46-5   When assembling and inspecting shaft rescue equipment, follow the following passwords and instructions. First, the commander first issued the "preparation equipment" password, according to the number one member "ready to complete" signal, issued the "checking equipment" password. The first and second members heard the commander's “preparation equipment†password and picked up the upper part of the tripod with both hands, and erected a tripod together with the second and third members. According to the fourth member, “the pulleys were readyâ€. The signal, adjust the height of the stand and send a "ready to complete" signal. After hearing the commander's "check equipment" password, check the detent and issue a "checking completed" signal. After hearing the commander's “preparation equipment†password, the second and the second officer held the lower part of the tripod with both hands, and started the bracket leg together with the first and third members, and adjusted the bracket according to the signal of the fourth member “the pulley is readyâ€. At the height of the leg, after hearing the commander's “checking equipment†password, check the detent and issue a “checking completed†signal. After the number four and number three members heard the commander's “preparation equipment†password, hold down the lower part of the tripod with both hands and cooperate with the first and second members to unfold the support leg and adjust the bracket according to the “wheel ready signal†signal of the fourth member. At the height of the leg, after hearing the commander's “checking equipment†password, check the card pin and issue a “checking completed†signal. After members of No.5 and No.4 heard the commander's “preparation equipment†password, they prepared a double pulley and a fixed triangle wire rope. The double pulley was mounted on a tripod and issued “The pulley is ready to be completedâ€. After hearing the commander's "checking equipment" password, check the double pulley and issue a "checking completed" signal. |
ã€purpose】
This section specifies the passwords and essentials for assembling and inspecting shaft rescue equipment.
[Details]
The following table lists the passwords and essentials for assembling and inspecting shaft rescue equipment.
order | 1 | 2 | 3 |
commander | Send the "preparation equipment" password. | Â | According to the "ready to complete" signal of the first member, the "checking equipment" password is issued. |
One member | After hearing the commander's “preparation equipment†password, both hands picked up the upper part of the tripod and stood upright. Together with the second and third members, they unfolded the bracket legs. | According to the signal of "the pulley is ready" of the fourth member , the height of the support leg is adjusted and a "ready to complete" signal is issued. | After hearing the commander's "check equipment" password, check the detent and issue a "checking completed" signal. |
Second member | After hearing the commander's “preparation equipment†password, hold down the lower part of the tripod with both hands, and with the first and third members, unfold the leg. | According to No. 4 member's "The pulley is ready" signal, adjust the leg height. | After hearing the commander's "check equipment" password, check the card pin and send a "check completed" signal. |
Third member | After hearing the commander's “preparation equipment†password, hold down the lower part of the tripod with both hands, and with the first and second members, unfold the leg of the stand. | According to No. 4 member's "The pulley is ready" signal, adjust the leg height. | After hearing the commander's "check equipment" password, check the detent and issue a "checking completed" signal. |
Fourth member | After hearing the commander's "preparation equipment" password, prepare the double pulley and tripod fixed wire rope. | Install the double pulley on the tripod and send out the signal "The pulley is ready." | After hearing the commander's "checking equipment" password, check the double pulley and issue a "checking completed" signal. |
Note | The installation location refers to the provisions of Article 46-3 (I). | When installing the pulley, it should be carried out as far as possible in the vertical state. Assembly should be in place. | Â |
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(operating shaft rescue equipment) Article 46-6   When using shaft rescue equipment, follow the following passwords and instructions. First, the commander issued a "start operation" password, confirm the operating conditions, issued a "stop" password. After the member No.1 heard the commander's “starting operation†password, together with the second and third members, the tripod was transported to the designated position, the height of the bracket leg was adjusted, and the tripod was fixed with a tripod, according to the No. 3 member’s The "pedestal is fixed" signal sends a "tripod ready" signal. When the third and the second members heard the commander's “start operation†password, along with the first and third members, the tripod was transported to a designated position, the height of the stand leg was adjusted, and the wire rope was fixed with a tripod. After the number four and number three members heard the commander's "start operation" password, together with the first and second members, the tripod was transported to a designated position, the height of the stand legs was adjusted, and a tripod was used to fix the wire rope to fix it. Fixed signal. After hearing the No. 1 password of the commander “starting operation,†the fifth and fourth members were transported to the designated place with the aid rope, and stopped the operation after hearing the commander's “stop†password. |
ã€purpose】
This section specifies the passwords and essentials for the use of shaft rescue equipment.
[Details]
The following table shows the passwords and instructions for using the shaft rescue equipment.
order | 1 | 2 | 3 |
commander | Send a "start operation" password. | Â | After confirming the operating condition, a "stop" password is issued. |
One member | After hearing the commander's “start operation†password, along with the second and third members, transport the tripod to the designated position. | Adjust the leg height and use a tripod to secure the wire rope. | According to the third party's "fixed base" signal, a "tripod ready" signal was issued. |
Second member | After hearing the commander's "start operation" password, cooperate with the first and third members to transport the tripod to the designated position. | Adjust the height of the bracket leg and fix it with a tripod to fix the wire rope. | Â |
Third member | After hearing the command of the commander to "start operation," carry the tripod to the designated location together with the first and second members. | Adjust the leg height, fix the wire rope with a tripod, and send a signal that the base is fixed. | Â |
Fourth member | After hearing the password of the commander “starting operationâ€, the fourth member held the rescue rope and went to the designated place. |  | After hearing the commander's "stop" password, stop the operation. |
Note | Â | Adjustments such as heights are performed in accordance with the provisions of Article 46-3 (V). To avoid major accidents, they must be used within the maximum load weight. When rising or falling, it should be done slowly to avoid hitting the equipment. | For the setting position of the tripod, refer to Article 46-3 (1). |
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(finishing equipment) Article 46-7   When you tidy up the shaft rescue equipment, follow the following passwords and essentials. First, the commander sends out the password for "shut up". After the member No.1 heard the commander's password, he and the No.2 and No.3 members together removed the tripod from the designated place and unlocked the tripod and fixed the wire rope. According to the No. 3 member's "base decomposing completed" signal, Unplug the pin, arrange the disassembled part, put away the tripod, tip it over, and move the tripod to the original position with the second member and return to the operation line. After the third and the second members heard the commander's password for “successionâ€, together with the first and third members, the tripod was removed from the designated place, and the tripod was fixed and the steel wire rope was unlocked. , Unplug the card, carry out finishing, put away the tripod and tipped down, issued a "tripod finishing" signal. Together with the first member, carry the tripod to its original position and return to the operating line. After the number four and number three members heard the commander's password, they removed the tripod from the designated place together with the first and second members, unlocked the tripod and fixed the wire rope, and issued a signal indicating that the base was disassembled and the card pin was unplugged. , to organize, the card pin and tripod fixed wire rope transported to its original position, re
Used to remove material from internal cylindrical surfaces to improve part geometry or produce a finer surface finish, honing is performed at a much slower speed than is typically used in Precision Grinding.
The cutting action is achieved by a rotating hone, or stone, which is bonded with a very fine abrasive grit and mounted on a metal mandrel. Rather than being clamped in place, the workpiece is fixed to allow floating and prevent distortion that would result in an oval rather than round hole.
The hone is rotated in a controlled path over the surface of the part. In some cases, a machinist might move the workpiece back and forth over the rotating hone, ensuring that the part is floating rather than being pressed against the hone - again, to avoid an oval hole.
With a horizontal honing machine, the workpiece may be held in a self-aligning fixture while the machine controls the speed and length of the stroke. The hone is hydraulically or mechanically expanded until the desired hole diameter is achieved.
In addition, a cutting fluid must be used. The purpose is threefold: to clean small chips from the work area, to cool the workpiece and hone, and to lubricate the cutting action.
Lapping is used to achieve surfaces that are very flat and smooth, as well as to finish round work, such as precision plug gages, to very tight tolerances.
The lapping process is more gentle than honing and removes much less surface material. Therefore, the workpiece should be as close as possible to final size - achieved, for example, through double-disk grinding - because lapping typically removes only 0.0005" to 0.005" (0.0127 mm to 0.127 mm) of material.
Unlike honing, lapping uses fine-grained, loose abrasive particles suspended in a viscous or liquid base rather than a bonded abrasive stick or stone. The lapping process involves passing the workpiece between one or two large, very flat lap plates along with the abrasive suspension.
With lapping, close attention is paid to controlling every detail. This includes the speed of the plate(s), the pressure on the workpiece, the size and type of abrasive used, the feeding method, and the plate temperature.
Internal Grinding,Honing Machine Parts,Honing The Inner Hole,Honing Cylinder Liner Dayue Precision Technology (Dongguan) Co., Ltd. , https://www.dayuechn.com |