CN216737044U - Elevator speed limiting device - Google Patents
Elevator speed limiting device Download PDFInfo
- Publication number
- CN216737044U CN216737044U CN202220270977.5U CN202220270977U CN216737044U CN 216737044 U CN216737044 U CN 216737044U CN 202220270977 U CN202220270977 U CN 202220270977U CN 216737044 U CN216737044 U CN 216737044U
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- limiting device
- elevator
- bracket
- speed limiting
- elevator speed
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Abstract
The utility model provides an elevator speed limiting device. The elevator speed limiting device comprises a slide rail and a mounting rack; the bracket is slidably mounted on the mounting rack; the two sliding blocks are slidably mounted on the bracket; the rotating wheel is rotatably arranged on the two sliding blocks; the spring is arranged on the sliding block, and one end of the spring is fixedly connected with the bracket; the friction plate is arranged in the support and is positioned right above the rotating wheel. The elevator speed limiting device provided by the utility model has the advantages of convenience in use, capability of automatically limiting the speed when the elevator descends to reach a certain speed, and effective reduction of potential safety hazards of the elevator.
Description
Technical Field
The utility model relates to the technical field of elevators, in particular to an elevator speed limiting device.
Background
The elevator is the stair that relies on electric power automatic operation, and the elevator is including escalator formula and car formula, and car formula elevator vertical lift can carry out the speed limit to it through setting up speed limiting device, especially when the elevator falls, can effectual reduction elevator's falling speed, reduces the potential safety hazard.
However, most of the speed-limiting devices of the elevator in the prior art are active speed-limiting, so that faults are easy to occur, and the elevator cannot be effectively intervened when the elevator fails.
Therefore, it is necessary to provide a new elevator governor to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model solves the technical problem of providing the elevator speed limiting device which is convenient to use, can automatically limit the speed when the elevator descends to reach a certain speed and effectively reduces the potential safety hazard of the elevator.
In order to solve the technical problem, the elevator speed limiting device provided by the utility model comprises: the sliding rail and the mounting rack; a bracket slidably mounted on the mounting bracket; the two sliding blocks are slidably mounted on the bracket; the rotating wheels are rotatably arranged on the two sliding blocks; the spring is arranged on the sliding block, and one end of the spring is fixedly connected with the bracket; the friction plate is arranged in the support and is positioned right above the rotating wheel.
Preferably, a sliding groove is formed in the bottom of the mounting frame, a connecting piece is slidably mounted in the sliding groove, and the connecting piece is fixedly connected with the support.
Preferably, a first screw rod is rotatably mounted in the sliding groove and is in threaded connection with the connecting piece.
Preferably, a worm wheel is fixedly mounted at one end of the first screw rod, a worm is rotatably mounted on the mounting frame, and the worm is meshed with the worm wheel.
Preferably, the support is provided with two mounting holes, a support rod is fixedly mounted in each mounting hole, the support rod is connected with the corresponding slide block in a sliding mode, and the spring is sleeved on the support rod.
Preferably, a cavity is formed in the support, a threaded sleeve is rotatably mounted in the cavity, a second lead screw is mounted in the threaded sleeve in a threaded mode, and the bottom end of the second lead screw is fixedly connected with the friction plate.
Preferably, a limiting groove is formed in the second screw rod, a limiting rod is fixedly mounted in the cavity, and the limiting rod is connected with the inner wall of the limiting groove in a sliding mode.
Preferably, a first bevel gear is fixedly mounted on the threaded sleeve, a motor is fixedly mounted in the cavity, a second bevel gear is fixedly mounted on an output shaft of the motor, and the second bevel gear is meshed with the first bevel gear.
Compared with the prior art, the elevator speed limiting device provided by the utility model has the following beneficial effects:
the utility model provides an elevator speed limiting device, wherein a rotating wheel is rotatably arranged on two sliding blocks, a friction plate is arranged in a support, and the friction plate is positioned right above the rotating wheel.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of an elevator governor provided by the present invention;
fig. 2 is a side cross-sectional structural view of fig. 1.
Reference numbers in the figures: 1. a slide rail; 2. a mounting frame; 3. a support; 4. a slider; 5. a rotating wheel; 6. a spring; 7. a friction plate; 8. a sliding groove; 9. a connecting member; 10. a first lead screw; 11. a worm gear; 12. a worm; 13. mounting holes; 14. a support bar; 15. a cavity; 16. a threaded bushing; 17. a second lead screw; 18. a first bevel gear; 19. a motor; 20. a second bevel gear.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Referring to fig. 1-2, the elevator governor includes: a slide rail 1 and a mounting rack 2; the bracket 3 is slidably mounted on the mounting frame 2; the two sliding blocks 4 are slidably mounted on the bracket 3; the rotating wheel 5 is rotatably arranged on the two sliding blocks 4; the spring 6 is arranged on the sliding block 4, and one end of the spring 6 is fixedly connected with the bracket 3; the friction plate 7 is arranged in the bracket 3, and the friction plate 7 is positioned right above the rotating wheel 5. When the descending speed of the elevator is too high, the rotating wheel 5 and the sliding rail 1 generate relative displacement, and then the rotating wheel 5 is contacted with the friction plate 7, so that the descending speed is realized.
Sliding tray 8 has been seted up to the bottom of mounting bracket 2, slidable mounting has connecting piece 9 in sliding tray 8, connecting piece 9 and support 3 fixed connection. A first screw rod 10 is rotatably mounted in the sliding groove 8, and the first screw rod 10 is in threaded connection with the connecting piece 9. One end fixed mounting of first lead screw 10 has worm wheel 11, it installs worm 12 to rotate on the mounting bracket 2, worm 12 and worm wheel 11 mesh. The runner 5 can be brought into contact with the slide.
Two mounting holes 13 are formed in the support 3, supporting rods 14 are fixedly mounted in the mounting holes 13, the supporting rods 14 are connected with the corresponding sliding blocks 4 in a sliding mode, and the supporting rods 14 are sleeved with the springs 6. The sliding stability of the sliding block 4 is ensured.
The support 3 is provided with a cavity 15, a threaded sleeve 16 is rotatably mounted in the cavity 15, a second screw rod 17 is mounted in the threaded sleeve 16 through internal threads, and the bottom end of the second screw rod 17 is fixedly connected with the friction plate 7. A limiting groove is formed in the second screw rod 17, a limiting rod is fixedly mounted in the cavity 15, and the limiting rod is connected with the inner wall of the limiting groove in a sliding mode. A first bevel gear 18 is fixedly installed on the threaded sleeve 16, a motor 19 is fixedly installed in the cavity 15, a second bevel gear 20 is fixedly installed on an output shaft of the motor 19, and the second bevel gear 20 is meshed with the first bevel gear 18. The speed limit value can be adjusted.
The working principle of the elevator speed limiting device provided by the utility model is as follows:
during the use, install mounting bracket 2 on elevator car, install slide rail 1 on the inner wall of elevartor shaft, time mounting bracket 2 corresponds with slide rail 1, rotates worm 12, and worm 12 passes through worm wheel 11 and drives first lead screw 10 and rotate, and first lead screw 10 drives the motion of connecting piece 9, and then drives support 3 and be close to slide rail 1 to make runner 5 and slide rail 1 contact and produce certain pressure.
When the elevator moves downwards fast, when the rotational speed of runner 5 is less than the falling speed, at this moment, runner 5 can produce relative displacement with slide rail 1, and then runner 5 upward movement on support 3 during, under the effect of friction plate 7, can reduce the speed of runner 5, and then reduce the speed that the elevator descends.
And starting a motor 19, enabling the threaded sleeve 16 to rotate under the action of the first bevel gear 18 and the second bevel gear 20, driving the friction plate 7 to move upwards or downwards by the threaded sleeve 16 through the second screw rod 17, so as to change the distance between the friction plate 7 and the rotating wheel 5, wherein the faster the elevator descends, the greater the movement displacement of the rotating wheel 5 on the bracket 3 is, so that the speed limit value can be adjusted by adjusting the distance between the friction plate 7 and the rotating wheel 5.
Compared with the prior art, the elevator speed limiting device provided by the utility model has the following beneficial effects:
the utility model provides an elevator speed limiting device, wherein a rotating wheel 5 is rotatably arranged on two sliding blocks 4, a friction plate 7 is arranged in a bracket 3, and the friction plate 7 is positioned right above the rotating wheel 5, so that when the elevator descending speed is too high, the rotating wheel 5 and a sliding rail 1 generate relative displacement, and the rotating wheel 5 is further contacted with the friction plate 7, thereby realizing the descending speed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An elevator governor, comprising:
the sliding rail and the mounting rack;
a bracket slidably mounted on the mounting bracket;
the two sliding blocks are slidably mounted on the bracket;
the rotating wheels are rotatably arranged on the two sliding blocks;
the spring is arranged on the sliding block, and one end of the spring is fixedly connected with the bracket;
the friction plate is arranged in the support and is positioned right above the rotating wheel.
2. The elevator speed limiting device according to claim 1, wherein a sliding groove is formed in the bottom of the mounting frame, a connecting piece is slidably mounted in the sliding groove, and the connecting piece is fixedly connected with the support.
3. The elevator speed limiting device according to claim 2, wherein a first lead screw is rotatably mounted in the sliding groove, and the first lead screw is in threaded connection with the connecting piece.
4. The elevator speed limiting device according to claim 3, wherein a worm wheel is fixedly mounted at one end of the first lead screw, a worm is rotatably mounted on the mounting frame, and the worm is meshed with the worm wheel.
5. The elevator speed limiting device according to claim 1, wherein the bracket is provided with two mounting holes, supporting rods are fixedly mounted in the mounting holes, the supporting rods are slidably connected with the corresponding sliding blocks, and the springs are sleeved on the supporting rods.
6. The elevator speed limiting device according to claim 1, wherein a cavity is formed in the support, a threaded sleeve is rotatably mounted in the cavity, a second lead screw is mounted in the threaded sleeve through internal threads, and the bottom end of the second lead screw is fixedly connected with the friction plate.
7. The elevator speed limiting device according to claim 6, wherein a limiting groove is formed in the second screw rod, a limiting rod is fixedly mounted in the cavity, and the limiting rod is connected with the inner wall of the limiting groove in a sliding manner.
8. The elevator speed limiting device according to claim 7, wherein a first bevel gear is fixedly mounted on the threaded sleeve, a motor is fixedly mounted in the cavity, a second bevel gear is fixedly mounted on an output shaft of the motor, and the second bevel gear is meshed with the first bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220270977.5U CN216737044U (en) | 2022-02-09 | 2022-02-09 | Elevator speed limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220270977.5U CN216737044U (en) | 2022-02-09 | 2022-02-09 | Elevator speed limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216737044U true CN216737044U (en) | 2022-06-14 |
Family
ID=81918223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220270977.5U Active CN216737044U (en) | 2022-02-09 | 2022-02-09 | Elevator speed limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216737044U (en) |
-
2022
- 2022-02-09 CN CN202220270977.5U patent/CN216737044U/en active Active
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