CN211110511U - Hydraulic fixing rope releasing device of speed limiter - Google Patents
Hydraulic fixing rope releasing device of speed limiter Download PDFInfo
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- CN211110511U CN211110511U CN201922268779.6U CN201922268779U CN211110511U CN 211110511 U CN211110511 U CN 211110511U CN 201922268779 U CN201922268779 U CN 201922268779U CN 211110511 U CN211110511 U CN 211110511U
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Abstract
The utility model provides a hydraulic fixing rope-releasing device of a speed limiter, which comprises a small hydraulic oil cylinder with a lever, a body for supporting the small hydraulic oil cylinder, a clamping block fixing piece, an upper clamping block and a lower clamping block; the upper clamping block and the lower clamping block are respectively detachably connected with the clamping block fixing piece and are oppositely arranged; one end of the small hydraulic oil cylinder is connected with the body, the other end of the small hydraulic oil cylinder is connected with the clamping block fixing piece, and a driving part of the small hydraulic oil cylinder is connected with the lower clamping block; when the clamping device is used, the lower clamping block connected with the driving part of the small hydraulic oil cylinder is driven to lift through the lever action, and the steel wire rope at the clamping station is clamped. The utility model discloses can increase the clamp force to provide stable clamping-force, take off the rope in-process at overspeed governor wire rope and effectively prevent wire rope and skid, thereby eliminate the potential safety hazard. Meanwhile, the upper clamping block and the lower clamping block can be correspondingly replaced according to the size and the diameter of the steel wire rope, so that the universality and the practicability of the rope releasing device are greatly improved.
Description
Technical Field
The utility model relates to a overspeed governor check-up equipment technical field, more specifically say, relate to a fixed rope release device of overspeed governor hydraulic pressure.
Background
The elevator speed limiter is one of important parts for elevator running safety protection, and is a safety protection device for stopping an elevator car or a counterweight by triggering a safety clamp when the elevator runs in an overspeed or falls by detecting the running speed of the elevator. When the running speed of the elevator is abnormal and exceeds a specified value, the speed limiter triggers the electrical switch firstly to cut off the elevator safety protection circuit, and then triggers the mechanical device to drive the safety tongs connecting rod to act, so that the safety tongs arranged at the bottom of the car or the counterweight act, and the car or the counterweight of the elevator is stopped on the running guide rail and is kept in a static state.
When checking the elevator speed limiter, a steel wire rope of the speed limiter needs to be separated from a rope sheave. The existing method for separating the steel wire rope from the rope pulley comprises the following steps: the elevator is arranged in an overhaul state, the elevator is overhauled and opened to a car separation layer door area, then a steel wire rope on the ascending side (the side which is not connected with the car) is clamped by special locking pliers, the special locking pliers are clamped above a speed limiter support, then the elevator moves upwards about 200mm at the overhaul speed, tools such as sharp nose pliers are utilized to lift the steel wire rope on the descending side (the side which is connected with the car), and then the steel wire rope on the descending side is clamped by the special locking pliers, so that the steel wire rope is separated from a rope wheel.
However, when the tensioning weight of the speed limiter is heavy on a high floor, the clamping force of the special locking pliers is limited, so that the special locking pliers are easy to slip, and certain potential safety hazards exist. In addition, the existing special powerful pliers clamp is low in universality and cannot be suitable for clamping steel wire ropes with various diameters, so that the verification efficiency of the speed limiter is low, the effect is poor, and the verification working speed of the elevator speed limiter is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome shortcoming and not enough among the prior art, provide a rope device is taken off in the hydraulic pressure is fixed to overspeed governor, should take off the rope device and can increase the clamp force to provide stable clamping-force, take off the in-process at overspeed governor wire rope and effectively prevent wire rope and skid, thereby eliminate the potential safety hazard. Another object of the utility model is to provide a strong and strong overspeed governor hydraulic pressure is fixed to be taken off the rope device.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a rope device is taken off in overspeed governor hydraulic pressure is fixed which characterized in that: comprises a small hydraulic oil cylinder with a lever, a body for supporting the small hydraulic oil cylinder, a clamping block fixing piece, an upper clamping block and a lower clamping block; the upper clamping block and the lower clamping block are respectively detachably connected with the clamping block fixing piece and are oppositely arranged, and a clamping station of the steel wire rope is arranged between the upper clamping block and the lower clamping block; one end of the small hydraulic oil cylinder is connected with the body, the other end of the small hydraulic oil cylinder is connected with the clamping block fixing piece, and a driving part of the small hydraulic oil cylinder is connected with the lower clamping block; when the clamping device is used, the lower clamping block connected with the driving part of the small hydraulic oil cylinder is driven to lift through the lever action, and the steel wire rope at the clamping station is clamped.
In the above scheme, the utility model discloses a clamp splice rises under the small-size hydraulic cylinder drive to carry out the centre gripping to wire rope together with the last clamp splice of relative setting, not only can increase the clamp force, can improve the stability of centre gripping moreover, take off the in-process at overspeed governor wire rope and effectively prevent wire rope and skid, thereby eliminate the potential safety hazard. In addition, the upper clamping block and the lower clamping block are detachably connected with the clamping block fixing piece, so that the upper clamping block and the lower clamping block can be conveniently and correspondingly replaced according to the size and the diameter of the steel wire rope, the rope release device is suitable for clamping steel wire ropes with various diameters, and the universality and the practicability of the rope release device are greatly improved.
Specifically, the opposite end surfaces of the upper clamping block and the lower clamping block are respectively provided with a clamping hole for increasing the friction force between the upper clamping block and the steel wire rope; the clamping holes are matched with the steel wire rope.
The clamping hole is in a circular arc shape or a semicircular shape; the clamping hole openings of the upper clamping block and the lower clamping block are oppositely arranged. Compare with the structure of traditional plane clamping face, the utility model discloses the centre gripping terminal surface of last clamp splice and lower clamp splice is provided with the double-layered hole, can increase wire rope and last clamp splice and the area of contact between the clamp splice down to increase frictional force between them, further improve the dynamics and the stability of centre gripping.
The clamp splice mounting has an opening, and the lateral wall is seted up respectively on the opening and is used for installing the mounting groove of clamp splice and lower clamp splice.
Elastic fixing pieces are arranged on the groove walls on the two sides of the mounting groove; the upper clamping block and the lower clamping block are detachably connected with the clamping block fixing piece through elastic fixing pieces.
The elastic fixing piece is a spring and a fixing rod which are arranged in the clamping block fixing piece; one end of the spring is abutted against the clamping block fixing piece, and the other end of the spring is abutted against the fixed rod; one end of the fixing rod, which is far away from the spring, is contacted with the upper clamping block or the lower clamping block in the mounting groove. The elastic fixing piece is simple in structure and can facilitate replacement of the upper clamping block and the lower clamping block.
The side walls of the upper clamping block and the lower clamping block are provided with grooves which are contacted with the fixing rod.
The driving part of the small hydraulic oil cylinder is a large piston; the small hydraulic oil cylinder also comprises a small piston, a first hydraulic cylinder, a second hydraulic cylinder communicated with the first hydraulic cylinder, an oil tank and an oil drain valve; one end of the small piston is connected with the lever, and the other end of the small piston is connected with the first hydraulic cylinder; one end of the large piston is connected with the second hydraulic cylinder, and the other end of the large piston is connected with the lower clamping block; the oil tank is respectively connected with the first hydraulic cylinder and the second hydraulic cylinder, and the oil drain valve is arranged on an oil path between the oil tank and the second hydraulic cylinder to lock the position of the lower clamping block.
The small hydraulic oil cylinder also comprises a steel ball for blocking an oil way; the steel balls are respectively arranged on an oil way between the first hydraulic cylinder and the second hydraulic cylinder and an oil way between the oil tank and the first hydraulic cylinder. The small hydraulic oil cylinder is an existing product on the market and is also called a hydraulic jack.
The utility model also comprises a movable lengthening strip which is used for adapting the size of the hole of the speed limiter machine room; the movable lengthened strip is arranged on the clamping block fixing piece and is hinged with the clamping block fixing piece.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
1. the utility model discloses the fixed rope release device of overspeed governor hydraulic pressure can increase the clamp force to provide stable clamping-force, take off the in-process at overspeed governor wire rope and effectively prevent wire rope and skid, thereby eliminate the potential safety hazard.
2. The utility model discloses the last clamp splice of the fixed rope release device of overspeed governor hydraulic pressure and clamp splice down can carry out corresponding change according to wire rope's size and diameter to improve this rope release device's commonality and practicality greatly.
Drawings
Fig. 1 is a schematic diagram of a hydraulic fixed rope releasing device of the speed limiter;
FIG. 2 is a schematic diagram of the operation of a small and medium hydraulic cylinder in this embodiment;
wherein, 1 is a small hydraulic oil cylinder, 1.1 is a lever, 1.2 is a large piston, 1.3 is a small piston, 1.4 is a hydraulic cylinder I, 1.5 is a hydraulic cylinder II, 1.6 is an oil tank, 1.7 is an oil drain valve, 1.8 is a steel ball I, 1.9 is a steel ball II, 2 is a body, 3 is a clamping block fixing piece, 4 is an upper clamping block, 5 is a lower clamping block, 6 is a clamping hole, 7 is a spring, 8 is a fixed rod, and 9 is a movable lengthened strip.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1 and 2, the utility model discloses the fixed rope release device of overspeed governor hydraulic pressure is including the small-size hydraulic cylinder 1 that has lever 1.1, be used for supporting small-size hydraulic cylinder 1's body 2, clamp splice mounting 3, go up clamp splice 4 and clamp splice 5 down, and wherein, go up clamp splice 4 and clamp splice 5 down and can dismantle with clamp splice mounting 3 respectively and be connected to relative the setting, go up the clamp splice 4 and down as wire rope's clamping position between the clamp splice 5. One end of the small hydraulic oil cylinder 1 is connected with the body, the other end of the small hydraulic oil cylinder is connected with the clamping block fixing piece 3, and a large piston 1.2 of the small hydraulic oil cylinder 1 is connected with the lower clamping block 5; when the clamping device is used, the lower clamping block 5 connected with the large piston 1.2 of the small hydraulic oil cylinder 1 is driven to ascend and descend under the action of the lever 1.1, and the steel wire rope at the clamping station is clamped.
The utility model discloses an go up clamp splice 4 and clamp splice 5's relative terminal surface down all is provided with the double-layered hole 6 that is used for increasing its and wire rope frictional force, should press from both sides hole 6 and wire rope phase-match, and press from both sides hole 6 and be the semicircle form, should press from both sides hole 6 and also can adopt arc shape, goes up clamp splice 4 and sets up relatively with clamp splice 5's 6 openings in the clamp hole. Compare with the structure of traditional plane clamping face, the utility model discloses the centre gripping terminal surface of last clamp splice 4 and lower clamp splice 5 is provided with double-layered hole 6, can increase wire rope and last clamp splice 4 and the area of contact between the clamp splice 5 down to increase frictional force between them, further improve the dynamics and the stability of centre gripping.
The utility model discloses a clamp splice mounting 3 is provided with the opening, and the mounting groove that is used for installing clamp splice 4 and clamp splice 5 down is offered respectively to the lateral wall about the opening. Elastic fixing parts are arranged on the groove walls on the two sides of the mounting groove, and the upper clamping block 4 and the lower clamping block 5 are detachably connected with the clamping block fixing part 3 through the elastic fixing parts. Specifically, the elastic fixing piece is a spring 7 and a fixing rod 8 which are arranged inside the clamping block fixing piece 3, one end of the spring 7 abuts against the clamping block fixing piece 3, the other end of the spring abuts against the fixing rod 8, and one end, far away from the spring 7, of the fixing rod 8 is in contact with the upper clamping block 4 or the lower clamping block 5 in the installation groove. The elastic fixing piece has a simple structure, and can facilitate the replacement of the upper clamping block 4 and the lower clamping block 5. In order to improve the stability, the side walls of the upper clamping block 4 and the lower clamping block 5 are provided with grooves which are contacted with the fixing rod 8.
The utility model discloses still add rectangular 9 including the activity that is used for adapting to overspeed governor computer lab trompil size, this activity adds rectangular 9 and sets up on clamp splice mounting 3 to it is articulated with clamp splice mounting 3.
The small hydraulic oil cylinder 1 of the embodiment is a hydraulic product manufactured by hydraulic limited company in Dongguan city gold, and is also called a hydraulic jack. The structure of the small hydraulic oil cylinder 1 is as follows: the small hydraulic oil cylinder 1 further comprises a small piston 1.3, a first hydraulic cylinder 1.4, a second hydraulic cylinder 1.5 communicated with the first hydraulic cylinder 1.4, an oil tank 1.6, an oil drain valve 1.7, a first steel ball 1.8 and a second steel ball 1.9 for blocking an oil way, wherein one end of the small piston 1.3 is connected with the lever 1.1, the other end of the small piston is connected with the first hydraulic cylinder 1.4, one end of a large piston 1.3 is connected with the second hydraulic cylinder 1.5, the other end of the large piston is connected with the lower clamping block 5, the oil tank 1.6 is respectively connected with the first hydraulic cylinder 1.4 and the second hydraulic cylinder 1.5, and the oil drain valve 1.7 is arranged on the oil way between the oil tank 1.6 and the second hydraulic cylinder 1.5 to lock the position of. The first steel ball 1.8 and the second steel ball 1.9 are respectively arranged on an oil way between the first hydraulic cylinder 1.4 and the second hydraulic cylinder 1.5 and an oil way between the oil tank 1.6 and the first hydraulic cylinder 1.4.
The working principle of the small hydraulic oil cylinder is as follows: as shown in FIG. 2, the inside of the second hydraulic cylinder 1.5 and the inside of the first hydraulic cylinder 1.4 are separately provided with a large piston 1.2 and a small piston 1.3. When the lever 1.1 is lifted up by hand, the small piston 1.3 is lifted up by twisting, so that the sealing volume of the lower cavity of the first hydraulic cylinder 1.4 is increased, the pressure in the cavity is reduced, and a certain vacuum is formed. At this time, the second steel ball 1.9 blocks the passage. The oil in the oil tank 1.6 pushes the first steel ball 1.8 away under the effect of atmospheric pressure and enters the lower cavity of the first hydraulic cylinder 1.4 along the oil suction hole, and one oil suction action is finished. Then, the lever 1.1 is pressed down, the small piston 1.3 moves downwards, the sealing volume of the lower cavity of the hydraulic cylinder 1.4 is reduced, the pressure in the cavity is increased, the steel ball 1.8 actively blocks a passage for oil to flow back to an oil tank, the pressure oil in the lower cavity of the hydraulic cylinder 1.4 pushes the steel ball two 1.9 to be squeezed into the lower cavity of the hydraulic cylinder two 1.5, and the large piston 1.2 is pushed to jack the lower clamping block 5 upwards for a certain interval. If the lever 1.1 is repeatedly lifted and pressed, the lower clamping block 5 can be continuously lifted, and the lifting purpose is achieved. If the oil drain valve 1.7 is rotated by 90 degrees, under the self-weight effect of the lower clamping block 5, oil in the hydraulic cylinder II 1.5 flows back to the oil tank 1.6, and the large piston 1.2 drives the lower clamping block 5 to be lowered to the original position.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides a rope device is taken off in overspeed governor hydraulic pressure is fixed which characterized in that: comprises a small hydraulic oil cylinder with a lever, a body for supporting the small hydraulic oil cylinder, a clamping block fixing piece, an upper clamping block and a lower clamping block; the upper clamping block and the lower clamping block are respectively detachably connected with the clamping block fixing piece and are oppositely arranged, and a clamping station of the steel wire rope is arranged between the upper clamping block and the lower clamping block; one end of the small hydraulic oil cylinder is connected with the body, the other end of the small hydraulic oil cylinder is connected with the clamping block fixing piece, and a driving part of the small hydraulic oil cylinder is connected with the lower clamping block; when the clamping device is used, the lower clamping block connected with the driving part of the small hydraulic oil cylinder is driven to lift through the lever action, and the steel wire rope at the clamping station is clamped.
2. The governor hydraulic fixing and rope releasing device according to claim 1, characterized in that: the opposite end surfaces of the upper clamping block and the lower clamping block are provided with clamping holes for increasing the friction force between the upper clamping block and the steel wire rope; the clamping holes are matched with the steel wire rope.
3. The governor hydraulic fixing and rope releasing device according to claim 2, characterized in that: the clamping hole is in a circular arc shape or a semicircular shape; the clamping hole openings of the upper clamping block and the lower clamping block are oppositely arranged.
4. The governor hydraulic fixing and rope releasing device according to claim 1, characterized in that: the clamp splice mounting has an opening, and the lateral wall is seted up respectively on the opening and is used for installing the mounting groove of clamp splice and lower clamp splice.
5. The governor hydraulic fixing and rope releasing device according to claim 4, characterized in that: elastic fixing pieces are arranged on the groove walls on the two sides of the mounting groove; the upper clamping block and the lower clamping block are detachably connected with the clamping block fixing piece through elastic fixing pieces.
6. The governor hydraulic fixing and rope releasing device according to claim 5, characterized in that: the elastic fixing piece is a spring and a fixing rod which are arranged in the clamping block fixing piece; one end of the spring is abutted against the clamping block fixing piece, and the other end of the spring is abutted against the fixed rod; one end of the fixing rod, which is far away from the spring, is contacted with the upper clamping block or the lower clamping block in the mounting groove.
7. The governor hydraulic fixing and rope releasing device according to claim 6, characterized in that: the side walls of the upper clamping block and the lower clamping block are provided with grooves which are contacted with the fixing rod.
8. The governor hydraulic fixing and rope releasing device according to claim 1, characterized in that: the driving part of the small hydraulic oil cylinder is a large piston; the small hydraulic oil cylinder also comprises a small piston, a first hydraulic cylinder, a second hydraulic cylinder communicated with the first hydraulic cylinder, an oil tank and an oil drain valve; one end of the small piston is connected with the lever, and the other end of the small piston is connected with the first hydraulic cylinder; one end of the large piston is connected with the second hydraulic cylinder, and the other end of the large piston is connected with the lower clamping block; the oil tank is respectively connected with the first hydraulic cylinder and the second hydraulic cylinder, and the oil drain valve is arranged on an oil path between the oil tank and the second hydraulic cylinder to lock the position of the lower clamping block.
9. The governor hydraulic fixing and rope releasing device according to claim 8, characterized in that: the small hydraulic oil cylinder also comprises a steel ball for blocking an oil way; the steel balls are respectively arranged on an oil way between the first hydraulic cylinder and the second hydraulic cylinder and an oil way between the oil tank and the first hydraulic cylinder.
10. The governor hydraulic fixing and releasing device according to any one of claims 1 to 9, characterized in that: the movable lengthened strip is used for adapting to the size of the hole of the speed limiter machine room; the movable lengthened strip is arranged on the clamping block fixing piece and is hinged with the clamping block fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268779.6U CN211110511U (en) | 2019-12-17 | 2019-12-17 | Hydraulic fixing rope releasing device of speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268779.6U CN211110511U (en) | 2019-12-17 | 2019-12-17 | Hydraulic fixing rope releasing device of speed limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211110511U true CN211110511U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922268779.6U Active CN211110511U (en) | 2019-12-17 | 2019-12-17 | Hydraulic fixing rope releasing device of speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211110511U (en) |
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2019
- 2019-12-17 CN CN201922268779.6U patent/CN211110511U/en active Active
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