Elevator overspeed governor tester
By designing the testing platform, governor body, positioning rod, drive assembly, and connecting assembly of the elevator governor calibrator, the problem of low testing efficiency caused by rope disassembly and assembly in the existing technology has been solved, realizing the convenience and stability of governor testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DONGFANG FULI ELEVATOR PARTS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-05
AI Technical Summary
The current elevator speed governor testing process requires the disassembly and reassembly of ropes, resulting in low testing efficiency.
An elevator speed governor calibration instrument was designed, comprising a testing platform, a speed governor body, a positioning rod, a drive assembly, and a connecting assembly. The drive assembly drives the guide wheel on the speed governor body to rotate, and the connecting assembly uses the housing on the speed governor body to lock and limit its position, ensuring the stability of the speed governor body on the testing platform.
This improves the efficiency of speed limiter detection, avoids the disassembly and assembly of ropes, and enhances the convenience and stability of the detection process.
Smart Images

Figure CN224324995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration instruments, and in particular to an elevator speed governor calibration instrument. Background Technology
[0002] Elevator speed governor calibrators are important tools for ensuring elevator safety. By testing and calibrating the speed governor, they ensure that it can work effectively in the event of overspeed, thereby improving the safety and reliability of the elevator.
[0003] Elevator speed governor calibrator tests the elevator speed governor through steps such as connection testing, speed simulation, data acquisition, and data analysis. The connection test involves connecting the calibrator to the elevator's speed governor system, usually via cable or wireless connection. The calibrator simulates the elevator's running speed, gradually increasing the speed to test the speed governor's response. Then, the elevator speed governor is tested and analyzed through data acquisition and analysis, and a test report is generated.
[0004] When testing elevator speed governors, the bracket of the elevator speed governor is usually fixed on the testing platform with bolts, and then the rope that drives the elevator speed governor is assembled. This not only requires the installation and disassembly of the elevator speed governor, but also the assembly and disassembly of the driving rope, which reduces the testing efficiency of the elevator speed governor and has certain defects. Utility Model Content
[0005] The purpose of this invention is to provide an elevator speed governor calibrator to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator speed governor calibrator, comprising:
[0007] Testing station;
[0008] Speed limiter body, the speed limiter body is disposed on the top of the testing platform;
[0009] A positioning rod is fixedly connected to the top of the testing platform, and the outer wall of the positioning rod is slidably sleeved with the base housing on the speed limiter body;
[0010] A drive assembly is disposed on the top of the testing platform. The drive assembly is used not only to drive the line guide wheel on the speed limiter body to rotate, but also to lock and limit the base housing on the speed limiter body.
[0011] A connecting component is mounted on the top of the testing station and is used to limit the installation of the drive component.
[0012] Preferably, the driving component includes:
[0013] The mounting housing is mounted on the top of the testing platform via a connecting assembly, and one end of the outer wall of the mounting housing is slidably engaged with the base housing on the speed limiter body.
[0014] The drive roller has a slot corresponding to the top of one end of the mounting housing, and the outer wall of the drive roller is pressed and fitted against the guide wheel on the speed limiter body.
[0015] Preferably, the driving component further includes:
[0016] The mounting shaft is rotatably mounted inside the mounting housing, and the outer wall of the mounting shaft is fixedly sleeved with the drive roller;
[0017] A servo motor is installed inside the mounting housing, and the output end of the servo motor is connected to the mounting shaft via a transmission.
[0018] Preferably, the connection component includes:
[0019] A fixed housing is fixedly connected to the top of the testing station;
[0020] A fastener is fixedly connected to one side of the bottom of the mounting housing. The top of the mounting housing has a sliding hole corresponding to the fastener, and the bottom of the outer wall of the fastener is slidably sleeved with the mounting housing.
[0021] Preferably, the connection component further includes:
[0022] Mounting plate, which is disposed inside the fixed housing;
[0023] A fixing rod, one end of which is fixedly connected to a fixing member, and the other end of which passes through a mounting plate and is fixedly connected to a limiting plate;
[0024] A positioning spring is slidably sleeved on the outside of the fixing rod, and the positioning spring is located between the mounting plate and the fixing member.
[0025] Preferably, the connection component further includes:
[0026] The mounting plate has a mounting groove on its top corresponding to the connecting rod.
[0027] A handle plate, which is fixedly connected to the top of the connecting rod;
[0028] A locking rod is fixedly connected to the bottom of the handle plate, and a locking hole matching the locking rod is provided on the top of the fixed housing.
[0029] Preferably, the connection component further includes:
[0030] A retaining collar is fixedly sleeved on the top of the inner cavity of the mounting groove;
[0031] A limiting block, which is fixedly connected to the bottom of the connecting rod;
[0032] A limiting spring is slidably sleeved on the outside of the connecting rod, and the limiting spring is located between the fixed collar and the limiting block.
[0033] The technical effects and advantages of this utility model are as follows:
[0034] This utility model utilizes the cooperative use of a testing platform, a speed limiter body, a positioning rod, a drive assembly, and a connecting assembly. Under the action of the connecting assembly, the drive assembly can not only drive the wire guide wheel on the speed limiter body to rotate, but also compress and limit the shell on the speed limiter body. In conjunction with the positioning rod, it can ensure the stability of the speed limiter body when it is locked onto the testing platform, thereby improving the testing efficiency of the speed limiter body. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0036] Figure 2 This is a schematic diagram of the internal structure of the mounting housing of this utility model from the top view;
[0037] Figure 3 This is a top-view schematic diagram of the internal structure of the fixed shell portion of this utility model;
[0038] Figure 4 This is a schematic diagram of the internal structure of the side of the fixed housing of this utility model.
[0039] In the diagram: 1. Testing platform; 2. Speed limiter body; 3. Positioning rod; 4. Drive assembly; 41. Mounting housing; 42. Mounting shaft; 43. Drive roller; 44. Servo motor; 5. Connecting assembly; 51. Fixed housing; 52. Fixing component; 53. Mounting plate; 54. Positioning spring; 55. Fixing rod; 56. Limiting plate; 57. Connecting rod; 58. Handle plate; 59. Locking rod; 510. Fixing collar; 511. Limiting block; 512. Limiting spring. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] This utility model provides, for example Figure 1-4 The image shows an elevator speed governor calibrator.
[0042] Example 1
[0043] The system includes a testing platform 1, a speed limiter body 2, a positioning rod 3, a drive assembly 4, and a connecting assembly 5. The speed limiter body 2 is located on top of the testing platform 1. The testing platform 1 has a host computer and is equipped with data acquisition sensors. When the drive assembly 4 drives the speed limiter body 2, the sensors collect data from the speed limiter body 2 and transmit it to the host computer. The data is analyzed, and a test report for the speed limiter body 2 is generated, thus completing the test of the speed limiter body 2. This is existing technology and will not be described in detail here. The positioning rod 3 is fixedly connected to the top of the testing platform 1. The outer wall of the positioning rod 3 is slidably sleeved with the base shell on the speed limiter body 2. The drive assembly 4 is located on top of the testing platform 1. The drive assembly 4 is used not only to drive the rotation of the guide wheel on the speed limiter body 2, but also to lock and limit the base shell on the speed limiter body 2. In conjunction with the positioning rod 3, it can ensure the stability of the speed limiter body 2 installed on the testing platform 1. The connecting assembly 5 is installed on top of the testing platform 1 and is used to limit the installation of the drive assembly 4.
[0044] In particular, the drive assembly 4 includes a mounting housing 41, a drive roller 43, a mounting shaft 42, and a servo motor 44. The mounting housing 41 is mounted on the top of the test bench 1 via a connecting assembly 5. One end of the outer wall of the mounting housing 41 is slidably engaged with the base housing on the speed limiter body 2, thereby locking the height of the speed limiter body 2 and ensuring the stability of the speed limiter body 2 when engaged on the test bench 1 via the positioning rod 3. The mounting housing 41 is slidably separated from the base housing on the speed limiter body 2, allowing direct disassembly of the speed limiter body 2. The top of one end of the mounting housing 41 has an opening for connecting with the drive roller 43. The drive roller 43 has a corresponding slot, and the drive roller 43 has a protruding part relative to the mounting housing 41, thereby ensuring that the drive roller 43 is pressed and fitted against the guide roller on the speed limiter body 2. The mounting housing 41 will not affect the rotation of the guide roller on the speed limiter body 2. The outer wall of the drive roller 43 is pressed and fitted against the guide roller on the speed limiter body 2. The mounting shaft 42 is rotatably mounted inside the mounting housing 41, and the outer wall of the mounting shaft 42 is fixedly sleeved with the drive roller 43. The servo motor 44 is mounted inside the mounting housing 41, and the output end of the servo motor 44 is connected to the mounting shaft 42 for transmission. Figure 2 As shown, the servo motor 44 drives the mounting shaft 42 to rotate through the reversing gear, connecting gear and chain, which in turn drives the drive roller 43 to rotate. The reversing gear, connecting gear and chain rotation connection technology is a mature technology and will not be described in detail here.
[0045] Example 2
[0046] Based on Embodiment 1, the connecting component 5 includes a fixed housing 51 and a fixing member 52. The fixed housing 51 is fixedly connected to the top of the testing table 1, and the fixing member 52 is fixedly connected to one side of the bottom of the mounting housing 41. The top of the fixed housing 51 has a sliding hole corresponding to the fixing member 52. The bottom of the outer wall of the fixing member 52 is slidably sleeved with the fixed housing 51. The cross-section of the fixing member 52 is inverted T-shaped, which allows the mounting housing 41 to be stably slidably connected to the top of the fixed housing 51.
[0047] In particular, the connecting assembly 5 also includes a mounting plate 53, a fixing rod 55, and a positioning spring 54. The mounting plate 53 is disposed inside the fixed housing 51. One end of the fixing rod 55 is fixedly connected to the fixing member 52, and the other end of the fixing rod 55 passes through the mounting plate 53 and is fixedly connected to the limiting plate 56. The positioning spring 54 is slidably sleeved on the outside of the fixing rod 55. The positioning spring 54 is located between the mounting plate 53 and the fixing member 52. When the mounting plate 53 is snapped into the inside of the fixed housing 51, the mounting plate 53 can provide a spring force to the mounting housing 41 towards the speed limiter body 2 through the positioning spring 54 and the fixing member 52, thereby ensuring the stability of the drive roller 43 pressing and fitting with the guide wheel on the speed limiter body 2. The positioning spring 54 has a certain spring force, and the outside of the drive roller 43 is made of rubber, thereby preventing the drive roller 43 from sliding relative to the guide wheel on the speed limiter body 2.
[0048] Furthermore, the connecting assembly 5 also includes a connecting rod 57, a handle plate 58, and a locking rod 59. The top of the mounting plate 53 has a mounting groove corresponding to the connecting rod 57. The handle plate 58 is fixedly connected to the top of the connecting rod 57, and the locking rod 59 is fixedly connected to the bottom of the handle plate 58. The top of the fixed housing 51 has a locking hole that matches the locking rod 59. The fixed housing 51 has two locking holes. When the locking rod 59 engages with the two locking holes at different positions on the fixed housing 51, the mounting plate 53 is positioned at different positions inside the fixed housing 51, which allows the mounting housing 41 to be in a docking or disengaging state with the speed limiter body 2.
[0049] Specifically, the connecting assembly 5 also includes a fixing collar 510, a limiting block 511, and a limiting spring 512. The fixing collar 510 is fixedly sleeved on the top of the inner cavity of the mounting groove, the limiting block 511 is fixedly connected to the bottom of the connecting rod 57, and the limiting spring 512 is slidably sleeved on the outside of the connecting rod 57. The limiting spring 512 is located between the fixing collar 510 and the limiting block 511. The limiting spring 512 can provide a spring force to the handle plate 58 towards the fixed housing 51 through the limiting block 511 and the connecting rod 57, thereby ensuring the stability of the locking rod 59 engaging with the locking hole.
[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An elevator speed governor calibrator, characterized in that, include: Testing station (1); Speed limiter body (2), the speed limiter body (2) is disposed on the top of the testing platform (1); Positioning rod (3), the positioning rod (3) is fixedly connected to the top of the testing platform (1), and the outer wall of the positioning rod (3) is slidably sleeved with the base shell on the speed limiter body (2); The drive assembly (4) is located on the top of the detection table (1). The drive assembly (4) is used not only to drive the wire guide wheel on the speed limiter body (2) to rotate, but also to lock and limit the base housing on the speed limiter body (2). A connecting component (5) is installed on the top of the detection station (1) and is used to limit the installation of the drive component (4).
2. The elevator speed governor calibrator according to claim 1, characterized in that, The driving component (4) includes: Mounting housing (41), which is mounted on the top of the testing platform (1) via connecting assembly (5), and one end of the outer wall of the mounting housing (41) is slidably engaged with the base housing on the speed limiter body (2); The drive roller (43) has a slot corresponding to the drive roller (43) on the top of one end of the mounting housing (41). The outer wall of the drive roller (43) is pressed and fitted against the guide wheel on the speed limiter body (2).
3. The elevator speed governor calibrator according to claim 2, characterized in that, The driving component (4) also includes: Mounting shaft (42) is rotatably mounted inside mounting housing (41), and the outer wall of mounting shaft (42) is fixedly sleeved with drive roller (43); A servo motor (44) is installed inside the mounting housing (41), and the output end of the servo motor (44) is connected to the mounting shaft (42) for transmission.
4. The elevator speed governor calibrator according to claim 2, characterized in that, The connection component (5) includes: A fixed housing (51) is fixedly connected to the top of the testing station (1); The fixing member (52) is fixedly connected to one side of the bottom of the mounting housing (41). The top of the mounting housing (51) is provided with a sliding hole corresponding to the fixing member (52). The bottom of the outer wall of the fixing member (52) is slidably sleeved with the mounting housing (51).
5. The elevator speed governor calibrator according to claim 4, characterized in that, The connection component (5) further includes: Mounting plate (53), which is disposed inside the fixed housing (51); A fixing rod (55) is fixedly connected at one end to a fixing member (52), and the other end of the fixing rod (55) passes through a mounting plate (53) and is fixedly connected to a limiting plate (56). A positioning spring (54) is slidably sleeved on the outside of the fixing rod (55) and is located between the mounting plate (53) and the fixing member (52).
6. The elevator speed governor calibrator according to claim 5, characterized in that, The connection component (5) further includes: The top of the mounting plate (53) is provided with a mounting groove corresponding to the connecting rod (57); A handle plate (58) is fixedly connected to the top of a connecting rod (57); A locking rod (59) is fixedly connected to the bottom of the handle plate (58), and a locking hole matching the locking rod (59) is provided on the top of the fixed housing (51).
7. The elevator speed governor calibrator according to claim 6, characterized in that, The connection component (5) further includes: A fixing collar (510) is fixedly sleeved on the top of the inner cavity of the mounting groove; A limiting block (511) is fixedly connected to the bottom of the connecting rod (57); A limiting spring (512) is slidably sleeved on the outside of the connecting rod (57), and the limiting spring (512) is located between the fixed collar (510) and the limiting block (511).