Oil buffer performance testing device

Abstract

The utility model relates to the technical field of switching devices, and discloses an oil buffer performance testing device which comprises a bottom plate, a first support, a connecting rod and a mounting support, the top of the bottom plate is fixedly connected with a linear guide rail, a sliding block is arranged on the linear guide rail in a sliding mode, and the top of the sliding block is fixedly connected with a support. An impact head is fixedly connected to the left side of the support, a pin shaft is arranged in the support, an electric speed reducer is fixedly connected to the back face of the first support, an eccentric wheel is arranged on the front face of the first support, caulking grooves are formed in the two ends of the connecting rod respectively, bearings are arranged in the caulking grooves respectively, and the first support and the second support are fixedly connected to the left side of the support. A mounting hole is formed in the mounting bracket, and an oil buffer is arranged in the mounting hole. According to the oil buffer performance testing device, tens of thousands of times of running-in detection can be continuously and rapidly carried out on a plurality of oil buffers at the same time, and the oil seal sealing effect and the mechanical durability of the oil buffers can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of switch appliances, and particularly relates to an oil buffer performance testing device. Background Technique

[0002] An oil buffer is a device used in switch appliances. Its main function is to reduce mechanical impact during the opening and closing processes of switch appliances through oil buffering, and to reduce the damage to switch appliances caused by arc jumping and load impact. As an important part of switch appliances, the oil buffer plays an indispensable role in the reliability and stable operation of switch appliances. The performance of the oil buffer is of great significance for ensuring the normal operation of switch appliances. To ensure that the performance of the same batch of oil buffers meets the requirements, sampling performance testing operations are carried out during the incoming inspection.

[0003] At present, the incoming inspection of oil buffers adopts manual testing. Through tens of thousands of running-in tests of compressing and releasing the oil buffer, it is checked whether the oil buffer leaks oil and whether the metal ejector rod is bent, so as to judge the sealing effect of the oil buffer oil seal and the durability of the mechanism. Relying on manual testing is extremely inefficient and has a large workload. Therefore, there is an urgent need for an oil buffer performance testing device. Content of the Utility Model

[0004] The purpose of the utility model is to provide an oil buffer performance testing device to solve the problems put forward in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: An oil buffer performance testing device includes a bottom plate, a first bracket, a connecting rod, and an installation bracket. A linear guide rail is fixedly connected to the top of the bottom plate. A slider is slidably arranged on the linear guide rail. A support is fixedly connected to the top of the slider. An impact head is fixedly connected to the left side of the support. A pin shaft is arranged inside the support. An electric speed reducer is fixedly connected to the back of the first bracket. An eccentric wheel is arranged on the front of the first bracket. Embedding grooves are respectively arranged at both ends of the connecting rod. Bearings are respectively arranged in the embedding grooves. Installation holes are arranged on the installation bracket. An oil buffer is arranged in the installation holes. The oil buffer is fixedly connected to the installation bracket through nuts.

[0006] Preferably, the first bracket is fixedly connected to the top of the bottom plate, the installation bracket is fixedly connected to the top of the bottom plate, and the installation bracket is located on the left side of the linear guide rail.

[0007] The oil buffer is installed in the installation holes on the installation bracket through nuts. By starting the electric speed reducer, the eccentric wheel can be driven to rotate, and then the connecting rod can be used to push the slider to perform a linear reciprocating motion on the linear guide rail, and further drive the impact head on the left side of the slider support to perform a linear reciprocating motion, so as to perform an impact test on the oil buffer.

[0008] Preferably, the eccentric wheel is composed of a disc, a main drive shaft, and a rotating shaft. The main drive shaft is fixedly connected to the back of the disc. The back of the main drive shaft movably passes through the first bracket and is fixedly connected to the electric reducer. The rotating shaft is fixedly connected to the front of the disc.

[0009] Preferably, the bearing at one end of the connecting rod is rotatably connected to the support through a pin shaft, and the bearing at the other end of the connecting rod is rotatably connected to the disc through the rotating shaft.

[0010] Preferably, a plurality of mounting holes can be provided, and a plurality of impact heads can be provided. The plurality of mounting holes are respectively adapted to the plurality of impact heads.

[0011] The electric reducer can control the speed of its rotation through a frequency converter, thereby facilitating the adjustment of its working frequency per minute. And through the plurality of mounting holes provided, which are adapted to the number of the plurality of impact heads, it is convenient to test a plurality of oil buffers.

[0012] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0013] The present utility model can simultaneously perform tens of thousands of running-in tests on a plurality of oil buffers continuously and quickly, and inspect the oil seal sealing effect and mechanical durability of the oil buffers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the present utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the eccentric wheel of the present utility model;

[0016] Figure 3 is a left side three-dimensional structural schematic diagram of the present utility model;

[0017] Among them: 1, bottom plate; 2, first bracket; 3, connecting rod; 4, mounting bracket; 5, linear guide rail; 6, slider; 7, support; 8, impact head; 9, pin shaft; 10, electric reducer; 11, eccentric wheel; 12, bearing; 13, oil buffer; 111, disc; 112, main drive shaft; 113, rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides the following technical solutions:

[0020] Embodiment 1

[0021] Please refer to Figure 1 、 Figure 2 、 Figure 3 A device for testing the oil buffer performance, comprising a bottom plate 1, a first bracket 2, a connecting rod 3, and a mounting bracket 4. A linear guide rail 5 is fixedly connected to the top of the bottom plate 1. A slider 6 is slidably arranged on the linear guide rail 5. A support 7 is fixedly connected to the top of the slider 6. An impact head 8 is fixedly connected to the left side of the support 7. A pin shaft 9 is arranged inside the support 7. An electric speed reducer 10 is fixedly connected to the back of the first bracket 2. An eccentric wheel 11 is arranged on the front of the first bracket 2. Embedded grooves are respectively arranged at both ends of the connecting rod 3, and bearings 12 are respectively arranged in the embedded grooves. Mounting holes are formed in the mounting bracket 4, and an oil buffer 13 is arranged in the mounting holes. The oil buffer 13 is fixedly connected to the mounting bracket 4 through nuts.

[0022] The first bracket 2 is fixedly connected to the top of the bottom plate 1. The mounting bracket 4 is fixedly connected to the top of the bottom plate 1. The mounting bracket 4 is located on the left side of the linear guide rail 5.

[0023] The eccentric wheel 11 is composed of a disc 111, a main drive shaft 112, and a rotating shaft 113. The main drive shaft 112 is fixedly connected to the back of the disc 111. The back of the main drive shaft 112 movably penetrates through the first bracket 2 and is fixedly connected to the electric speed reducer 10. The rotating shaft 113 is fixedly connected to the front of the disc 111.

[0024] The bearing 12 at one end of the connecting rod 3 is rotatably connected to the support 7 through the pin shaft 9. The bearing 12 at the other end of the connecting rod 3 is rotatably connected to the disc 111 through the rotating shaft 113.

[0025] Multiple mounting holes can be formed, and multiple impact heads 8 can be arranged. The multiple mounting holes are respectively adapted to the multiple impact heads 8.

[0026] Through the above technical solutions, when testing the oil buffer 13, the oil buffer 13 is installed in the mounting holes on the mounting bracket 4 through nuts. By starting the electric speed reducer 10, the eccentric wheel 11 can be driven to rotate, thereby enabling the connecting rod 3 to push the slider 6 to perform linear reciprocating motion on the linear guide rail 5, and further driving the impact head 8 on the left side of the slider 6 support 7 to perform linear reciprocating motion, so that the impact head 8 impacts and tests the oil buffer 13. The electric speed reducer 10 can control its rotation speed through a frequency converter, thereby facilitating the adjustment of its working frequency per minute. And through the multiple mounting holes formed, which are adapted to the number of the multiple impact heads 8, it is convenient to test multiple oil buffers 13.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit, and the scope is defined by the appended claims and their equivalents.

Claims

1. An oil buffer performance testing device, comprising a base plate (1), a first bracket (2), a connecting rod (3), and a mounting bracket (4), characterized in that: The top of the base plate (1) is fixedly connected to a linear guide rail (5), a slider (6) is slidably arranged on the linear guide rail (5), the top of the slider (6) is fixedly connected to a support (7), the left side of the support (7) is fixedly connected to an impact head (8), a pin shaft (9) is arranged inside the support (7), the back of the first bracket (2) is fixedly connected to an electric reducer (10), the front of the first bracket (2) is arranged with an eccentric wheel (11), the two ends of the connecting rod (3) are respectively provided with embedding grooves, and bearings (12) are respectively arranged in the embedding grooves, and the mounting bracket (4) is provided with a mounting hole, and an oil buffer (13) is arranged in the mounting hole, and the oil buffer (13) is fixedly connected to the mounting bracket (4) through a nut.

2. The oil buffer performance testing device according to claim 1, characterized in that: The first bracket (2) is fixedly connected to the top of the base plate (1), the mounting bracket (4) is fixedly connected to the top of the base plate (1), and the mounting bracket (4) is located on the left side of the linear guide rail (5).

3. The oil buffer performance testing device according to claim 1, characterized in that: The eccentric wheel (11) is composed of a disc (111), a main drive shaft (112), and a rotating shaft (113); the main drive shaft (112) is fixedly connected to the back side of the disc (111); the back side of the main drive shaft (112) movably passes through the first bracket (2) and is fixedly connected to the electric reducer (10); and the rotating shaft (113) is fixedly connected to the front side of the disc (111).

4. The oil buffer performance testing device according to claim 1, characterized in that: The bearing (12) at one end of the connecting rod (3) is rotatably connected to the support (7) via a pin shaft (9), and the bearing (12) at the other end of the connecting rod (3) is rotatably connected to the disk (111) via a rotating shaft (113).

5. The oil buffer performance testing device according to claim 1, characterized in that: A plurality of the mounting holes may be provided, and a plurality of the impact heads (8) may be provided, and the plurality of mounting holes are respectively adapted to the plurality of impact heads (8).

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