Speed limiter testing device

Abstract

The utility model discloses a speed governor testing device, comprising a speed governor testing mechanism main body used for speed governor testing; the clamping mechanism comprises a U-shaped plate connected with the side surface of the speed governor testing mechanism main body, a mounting bracket of the speed governor is located between two side plates of the U-shaped plate, the two side plates of the U-shaped plate are both provided with first screw holes, the first screw holes are internally in threaded connection with first screw rods, and the first screw rods abut against the mounting bracket of the speed governor; according to the utility model, the installation support of the speed governor is fixed with the speed governor test mechanism main body through the cooperation of the U-shaped plate and the first screw rod which is in threaded connection with the side plate of the U-shaped plate, so that the speed governor test mechanism main body does not need to be held by hands when test detection is carried out on the speed governor test mechanism main body, physical exhaustion of an operator can be effectively reduced, and the test efficiency is improved. And the main body of the speed governor test mechanism is fixed, so that the test result is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator detection, in particular to a speed limiter testing device. Background Art

[0002] In modern society, elevators, as vertical transportation tools, play an increasingly important role in people's work and life, and their safety has also received more and more attention. The elevator speed limiter is the most critical safety guarantee component in passenger and cargo elevators. Its working principle is that when the elevator encounters an unexpected high-speed decline, once the car speed reaches the maximum value set by the speed limiter, the speed limiter will drive the safety clamp to stop or slow down the elevator, thereby ensuring safe operation and avoiding accidents. Therefore, the test and inspection of the elevator speed limiter is an important inspection item related to the safety of passengers and goods on the elevator. The "Rules for Elevator Supervision and Periodic Inspection-Traction and Forced Drive Elevators" of the General Administration of Quality Supervision, Inspection and Quarantine stipulates that the speed of the speed limiter with a service life of two years, abnormal action speed or damaged seals of various adjustment parts shall comply with the standard regulations. The test and inspection of the elevator speed limiter is to determine whether the speed limiter is qualified by measuring and processing the geometric parameters and operating parameters of the speed limiter.

[0003] There are two ways to test the elevator speed limiter: disassembly and inspection and on-site inspection. Since the disassembly and inspection of the speed limiter is time-consuming and laborious, and the disassembly and transportation process can easily damage the speed limiter, affecting its speed, for some special occasions, such as hospitals and residential areas, it is generally necessary for the inspector to conduct on-site testing. With the increase in high-rise buildings, the number of elevator speed limiters that need on-site testing and inspection has increased dramatically each year. Although there are many devices used to test and inspect elevator speed limiters in China, most of them are bulky and complex in structure, and are not easy to carry. They are mainly used for factory inspection of elevator speed limiters. The existing portable speed limiter detector for on-site inspection has difficult installation of detection components, many connectors between components, and requires cooperation of multiple people during detection. Multiple parameters need to be entered for each detection, which is cumbersome to operate and inefficient. At the same time, the accuracy is not high, and the reliability of the instrument is poor, making it increasingly difficult to meet the actual detection needs of the speed limiter.

[0004] The Chinese utility model patent with publication number CN202110060U discloses a portable elevator speed limiter detection device. It includes a motor assembly, a drive wheel, and a power supply system; the motor assembly includes an AC servo motor and a measurement and control system, and the AC servo motor and the measurement and control system are electrically connected; the measurement and control system includes a single-chip microcomputer, a display system, an input system, a Hall-type proximity switch, a magnetic steel, and an electrical switch, and the display system, the input system, the Hall-type proximity switch, and the electrical switch are all electrically connected to the single-chip microcomputer, and the Hall-type proximity switch cooperates with the magnetic steel; the drive wheel is connected to the motor assembly; and the power supply system is connected to the motor assembly.

[0005] Although this portable elevator speed limiter detection device is easy to carry and simple to operate, it requires a handheld device to press the driving wheel on the elevator speed limiter disc so that the driving wheel drives the disc to rotate, thereby realizing subsequent tests. During the test, the handheld elevator speed limiter detection device consumes a lot of physical energy, and the hand is prone to shaking, resulting in inaccurate test results. Utility Model Content

[0006] The utility model aims to provide a speed limiter test device in view of the problems existing in the prior art.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A speed limiter test device, comprising:

[0009] The speed limiter test mechanism body is used for speed limiter testing;

[0010] The clamping mechanism includes a U-shaped plate connected to the side of the speed limiter test mechanism body, the mounting bracket of the speed limiter is located between the two side plates of the U-shaped plate, the two side plates of the U-shaped plate are each provided with a first screw hole, the first screw hole is threadedly connected with a first screw rod, and the first screw rod abuts against the mounting bracket of the speed limiter.

[0011] The utility model fixes the installation bracket of the speed limiter to the speed limiter test mechanism body by cooperating with the first screw rod which is threadedly connected to the side plate of the U-shaped plate. When the speed limiter test mechanism body is tested, the speed limiter test mechanism body does not need to be carried by hand, which can effectively reduce the physical consumption of the operator. Moreover, the speed limiter test mechanism body is fixed, and the test result is more accurate.

[0012] Furthermore, a clamping block is provided at one end of the first screw rod close to the mounting bracket of the speed limiter, and the clamping block abuts against the mounting bracket of the speed limiter to prevent the first screw rod from directly contacting the mounting bracket of the speed limiter, which is beneficial to protecting the mounting bracket of the speed limiter. The contact area between the clamping block and the mounting bracket of the speed limiter is larger, so the main body of the speed limiter test mechanism can be more firmly fixed on the mounting bracket of the speed limiter.

[0013] Furthermore, a gasket is provided at one end of the clamping block close to the mounting bracket of the speed limiter, and the gasket abuts against the mounting bracket of the speed limiter to provide a buffer between the clamping block and the mounting bracket of the speed limiter, thereby better protecting the mounting bracket of the speed limiter.

[0014] Specifically, the gasket is a rubber sheet, which enhances the friction between the clamp block and the mounting bracket of the speed limiter, so that the speed limiter test mechanism body is more firmly fixed on the mounting bracket of the speed limiter.

[0015] Furthermore, the clamping block is rotatably connected to the first screw rod, and when the screw rod is rotated, the gasket does not need to be driven to rotate, which facilitates the fixation between the speed limiter test mechanism body and the speed limiter mounting bracket.

[0016] Furthermore, a connecting rod is fixed to the side of the main body of the speed limiter test mechanism, the connecting rod is passed through the side plate of the U-shaped plate and is rotatably connected to the side plate of the U-shaped plate, a limit block is provided at the end of the connecting rod away from the main body of the speed limiter test mechanism, the connecting rod is provided with a threaded section, a nut is threadedly connected to the threaded section, the side plate of the U-shaped plate is located between the limit block and the nut and is clamped by the limit block and the nut, the U-shaped plate is connected to the side of the main body of the speed limiter test mechanism by the arranged connecting rod, the connection between the U-shaped plate and the connecting rod can be rotated, which is convenient for adjusting the position of the U-shaped plate, so that the U-shaped plate can be fixed to more types of speed limiters, and the U-shaped plate is prevented from detaching from the connecting rod by the arranged limit block, and the limit block cooperates with the nut threadedly connected to the connecting rod to lock the U-shaped plate and prevent the U-shaped plate from rotating.

[0017] Furthermore, sleeves are provided at the four corners of the bottom end of the speed limiter test mechanism body, the sleeves are fixed to the side walls of the speed limiter test mechanism body, a support leg is slidably connected to the sleeve, a second screw hole is opened in the sleeve wall, a second screw is threadedly connected to the second screw hole, the second screw abuts against the support leg, the provided support leg is used to support the speed limiter test mechanism body, the support leg is slidably connected to the sleeve installed on the side walls of the speed limiter test mechanism body, it is convenient to adjust the height of the speed limiter test mechanism body to adapt to more models of speed limiters, and each support leg can be adjusted separately, which is conducive to adjusting the speed limiter test mechanism body to adapt to uneven ground, and the provided second screw cooperates with the second screw hole to fix the support leg and the sleeve.

[0018] Furthermore, a cushion block is provided at the bottom end of the supporting leg to provide buffering between the supporting leg and the ground.

[0019] Furthermore, the pad is a rubber block, which increases the friction between the supporting leg and the ground.

[0020] Furthermore, a handle is provided on the top surface of the speed limiter test mechanism body to facilitate carrying the speed limiter test mechanism body.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model fixes the installation bracket of the speed limiter to the speed limiter test mechanism body by cooperating with the first screw rod which is threadedly connected to the side plate of the U-shaped plate. When the speed limiter test mechanism body is tested, the speed limiter test mechanism body does not need to be carried by hand, which can effectively reduce the physical consumption of the operator. Moreover, the speed limiter test mechanism body is fixed, and the test result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a top view of a speed limiter test device in this embodiment;

[0024] Figure 2 This is a front view of a speed limiter test device in this embodiment;

[0025] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0026] In the figure: 1. driving wheel; 2. wheel disc; 3. mounting bracket; 4. speed limiter test mechanism body; 5. U-shaped plate; 6. first screw rod; 7. clamping block; 8. gasket; 9. connecting rod; 10. limit block; 11. nut; 12. sleeve; 13. supporting leg; 14. second screw rod; 15. cushion block; 16. handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a speed governor test device, including: a speed governor test mechanism body 4 and a clamping mechanism.

[0029] The speed limiter test mechanism body 4 drives the wheel disc 2 of the speed limiter to rotate through the friction of the driving wheel 1, and at the same time measures the rotation speed of the wheel disc 2 to determine whether the speed limit will be implemented after the rotation speed of the wheel disc 2 reaches the speed limit, thereby realizing the detection test of the speed limiter;

[0030] The clamping mechanism includes a U-shaped plate 5, a connecting rod 9 is fixed to the side of the speed limiter test mechanism body 4, and the fixing method is welding. The connecting rod 9 is inserted into a side plate of the U-shaped plate 5 and is rotatably connected to the side plate. A limit block 10 is provided at one end of the connecting rod 9 away from the speed limiter test mechanism body 4. A threaded section is provided on the connecting rod 9, and a nut 11 is threadedly connected to the threaded section. The side plate connected to the U-shaped plate 5 and the connecting rod 9 is located between the limit block 10 and the nut 11 and is clamped by the limit block 10 and the nut 11. The U-shaped plate 5 is connected to the side of the speed limiter test mechanism body 4 by the provided connecting rod 9. The connection between the U-shaped plate 5 and the connecting rod 9 can be rotated, which is convenient for adjusting the position of the U-shaped plate 5 so that the U-shaped plate 5 can be fixed with more types of speed limiters. The limit block 10 is provided to prevent the U-shaped plate 5 from being separated from the connecting rod 9. The limit block 10 cooperates with the nut 11 threadedly connected to the connecting rod 9 to lock the U-shaped plate 5 to prevent the U-shaped plate 5 from rotating; the mounting bracket 3 of the speed limiter is located between the two side plates of the U-shaped plate 5, and the two side plates of the U-shaped plate 5 are both provided with a first screw hole, and the first screw hole is threadedly connected with a first screw rod 6, and the first screw rod 6 abuts against the mounting bracket 3 of the speed limiter.

[0031] The utility model fixes the mounting bracket 3 of the speed limiter to the speed limiter test mechanism body 4 by cooperating with the first screw rod 6 threadedly connected to the side plate of the U-shaped plate 5. When the speed limiter test mechanism body 4 is tested, the speed limiter test mechanism body 4 does not need to be carried by hand, which can effectively reduce the physical consumption of the operator. Moreover, the speed limiter test mechanism body 4 is fixed, and the test result is more accurate.

[0032] Furthermore, if Figure 3 As shown, a clamping block 7 is provided at one end of the first screw rod 6 close to the mounting bracket 3 of the speed limiter, and the clamping block 7 abuts against the mounting bracket 3 of the speed limiter to prevent the first screw rod 6 from directly contacting the mounting bracket 3 of the speed limiter, which is beneficial to protecting the mounting bracket 3 of the speed limiter, and the contact area between the clamping block 7 and the mounting bracket 3 of the speed limiter is larger, so the speed limiter test mechanism body 4 can be more firmly fixed on the mounting bracket 3 of the speed limiter, and the clamping block 7 is rotatably connected to the first screw rod 6. When the screw rod is rotated, the clamping block 7 does not need to be driven to rotate, which facilitates the fixation between the speed limiter test mechanism body 4 and the mounting bracket 3 of the speed limiter.

[0033] Furthermore, a gasket 8 is provided at one end of the clamp block 7 close to the mounting bracket 3 of the speed limiter, and the gasket 8 abuts against the mounting bracket 3 of the speed limiter to provide a buffer between the clamp block 7 and the mounting bracket 3 of the speed limiter, so as to better protect the mounting bracket 3 of the speed limiter. Specifically, the gasket 8 is a rubber sheet, which enhances the friction between the clamp block 7 and the mounting bracket 3 of the speed limiter, so that the speed limiter test mechanism body 4 is more firmly fixed on the mounting bracket 3 of the speed limiter.

[0034] Furthermore, sleeves 12 are provided at the four corners of the bottom end of the speed limiter test mechanism body 4, the sleeve 12 is fixed to the side wall of the speed limiter test mechanism body 4, a support leg 13 is slidably connected in the sleeve 12, a second screw hole is opened in the wall of the sleeve 12, a second screw rod 14 is threadedly connected in the second screw hole, the second screw rod 14 abuts against the support leg 13, and the provided support leg 13 is used to support the speed limiter test mechanism body 4, the support leg 13 is slidably connected to the sleeve 12 installed on the side wall of the speed limiter test mechanism body 4, so as to facilitate the adjustment of the height of the speed limiter test mechanism body 4 to adapt to more types of speed limiters, and each support leg 13 can be adjusted separately, which is conducive to adjusting the speed limiter test mechanism body 4 to adapt to uneven ground, and the provided second screw rod 14 cooperates with the second screw hole to fix the support leg 13 to the sleeve 12.

[0035] Furthermore, a cushion block 15 is provided at the bottom end of the support leg 13 for buffering between the support leg 13 and the ground. The cushion block 15 is a rubber block for increasing the friction between the support leg 13 and the ground.

[0036] Furthermore, a handle 16 is provided on the top surface of the speed limiter test mechanism body 4 to facilitate carrying the speed limiter test mechanism body 4 .

[0037] Working principle: loosen the second screw 14, adjust the height of the support leg 13, make the driving wheel 1 contact with the wheel disc 2, and then tighten the second screw 14 to fix the support leg 13 and the sleeve 12; rotate the U-shaped plate 5 and adjust its position so that the mounting bracket 3 is located between the two side plates of the U-shaped plate 5, tighten the nut 11 to fix the U-shaped plate 5 and the connecting rod 9; tighten the first screw 6 to fix the U-shaped plate 5 and the mounting bracket 3, so as to achieve the fixation between the speed limiter test mechanism body 4 and the speed limiter.

[0038] It should be noted that although the present invention is disclosed as above with specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A speed limiter test device, characterized in that: include: The speed limiter test mechanism body is used for speed limiter testing; The clamping mechanism includes a U-shaped plate connected to the side of the speed limiter test mechanism body, the mounting bracket of the speed limiter is located between the two side plates of the U-shaped plate, the two side plates of the U-shaped plate are each provided with a first screw hole, the first screw hole is threadedly connected with a first screw rod, and the first screw rod abuts against the mounting bracket of the speed limiter.

2. A speed governor test device as claimed in claim 1, characterized in that: A clamping block is provided at one end of the first screw rod close to the mounting bracket of the speed limiter, and the clamping block abuts against the mounting bracket of the speed limiter.

3. A speed governor test device as claimed in claim 2, characterized in that: A gasket is provided at one end of the clamping block close to the mounting bracket of the speed limiter, and the gasket abuts against the mounting bracket of the speed limiter.

4. A speed governor test device as claimed in claim 3, characterized in that: The gasket is a rubber sheet.

5. A speed governor test device as claimed in claim 2, characterized in that: The clamping block is rotatably connected to the first screw rod.

6. A speed governor test device as claimed in claim 1, characterized in that: A connecting rod is fixed to the side of the speed limiter test mechanism body, the connecting rod is passed through the side plate of the U-shaped plate and is rotatably connected to the side plate of the U-shaped plate, a limit block is provided at one end of the connecting rod away from the speed limiter test mechanism body, a threaded section is provided on the connecting rod, a nut is threadedly connected to the threaded section, and the side plate of the U-shaped plate is located between the limit block and the nut and is clamped by the limit block and the nut.

7. A speed governor test device as claimed in claim 1, characterized in that: A sleeve is provided at the four corners of the bottom end of the speed limiter test mechanism body, the sleeve is fixed to the side wall of the speed limiter test mechanism body, a support leg is slidably connected in the sleeve, a second screw hole is opened in the wall of the sleeve, a second screw rod is threadedly connected in the second screw hole, and the second screw rod abuts against the support leg.

8. A speed governor test device as claimed in claim 7, characterized in that: A cushion block is provided at the bottom end of the supporting leg.

9. A speed governor test device as claimed in claim 8, characterized in that: The cushion block is a rubber block.

10. A speed governor test device as claimed in claim 1, characterized in that: A handle is provided on the top surface of the speed limiter test mechanism body.

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