Electric push rod offset durability testing device

Abstract

The utility model discloses an electric push rod offset durability testing device, which comprises a base, a guide post, a counterweight assembly, a limit assembly and an offset driving assembly, the guide post is arranged at the upper part of the base, the counterweight assembly is sleeved at the periphery of the guide post, the lower part of the counterweight assembly is provided with a pressure sensor and an upper fixing seat, and the limit assembly is arranged on the upper fixing seat. The limiting assembly is arranged on the upper portion of the guide column and used for limiting sliding of the counterweight assembly, the offset driving assembly is arranged on the upper portion of the base, and a lower fixing base is arranged on the upper portion of the offset driving assembly. According to the device, the deviation condition in an actual working environment can be realized, and long-time durability test can be performed on the electric push rod, so that the electric push rod can still keep good performance after being used for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing, and particularly relates to a device for testing the deflection durability of an electric push rod. Background Art

[0002] As a common driving device, electric push rods are widely used in various mechanical equipment and automation systems. At present, the popular new energy battery swap stations use nearly 100 electric push rods. In actual use, electric push rods may be affected by various factors, causing them to deviate, thus affecting their normal operation. It is particularly important to test and evaluate the offset durability of electric push rods. Therefore, it is necessary to design an electric push rod offset durability test device to achieve accurate, fast and reliable testing of the offset durability of electric push rods. This can not only improve the performance and reliability of electric push rods, but also provide strong technical support and guarantee for the development of related industries. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide an electric push rod offset durability testing device, which can realize the offset situation in the actual working environment and perform a long-term durability test on it, thereby ensuring that the electric push rod can still maintain good performance after long-term use.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: an electric push rod offset durability test device, the test device comprising:

[0005] A base, a guide column, a counterweight assembly, a limit assembly and an offset drive assembly, wherein the guide column is arranged at the upper part of the base, the counterweight assembly is sleeved on the outer circumference of the guide column, the counterweight assembly can slide back and forth along the length direction of the guide column, and a pressure sensor and an upper fixed seat are arranged at the lower part of the counterweight assembly, the limit assembly is arranged at the upper part of the guide column, and the limit assembly is used to limit the sliding of the counterweight assembly, the offset drive assembly is arranged at the upper part of the base, and a lower fixed seat is arranged at the upper part of the offset drive assembly.

[0006] Preferably, the offset drive assembly includes an X-moving unit and a Y-moving unit;

[0007] The X moving unit includes a first fixed seat and a first screw arranged on the upper part of the first fixed seat;

[0008] The Y moving unit includes a second fixed seat, a second screw arranged on the upper part of the second fixed seat, and a moving platform arranged on the upper part of the second fixed seat;

[0009] The second fixing seat is arranged on the upper part of the first fixing seat, and the lower part of the second fixing seat is connected to the first screw rod through a first connecting member, and the lower part of the moving platform is connected to the second screw rod through a second connecting member.

[0010] Preferably, a first pointer is disposed on one side of the first fixing seat, and a first scale is disposed on one side of the second fixing seat;

[0011] A second pointer is arranged on one side of the second fixing seat, and a second scale is arranged on one side of the moving platform.

[0012] Preferably, the counterweight assembly includes a load-bearing plate and a plurality of counterweight blocks, wherein the plurality of counterweight blocks are arranged on the upper portion of the load-bearing plate, and the load-bearing plate is provided with guide holes, and guide columns can be installed in the guide holes.

[0013] Preferably, the limiting assembly includes a limiting plate and a limiting rod, the limiting plate is provided with a limiting hole, the lower part of the limiting rod is connected to the load-bearing plate, the upper part of the limiting rod passes through the limiting hole, and the upper part of the limiting rod is provided with a nut.

[0014] Preferably, a mounting frame is provided on one side of the limit plate, the mounting frame is provided with two proximity sensors, and sensing sheets are respectively provided at the upper and lower ends of the load-bearing plate.

[0015] Preferably, a plurality of footrests are provided at the lower portion of the base.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The lower end of the electric push rod is connected to the lower fixed seat, and the upper end of the electric push rod is connected to the upper fixed seat. A certain amount of counterweight is added to the load-bearing plate. Then, by adjusting the offset of the X mobile unit and the Y mobile unit, the offset of the electric push rod in actual working conditions is simulated to realize the offset durability test of the electric push rod.

[0018] 2. The load-bearing plate slides up and down using ball linear bearings to reduce friction with the guide column, ensuring that the load of the electric push rod is more accurate and the test data is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model Figure 3

[0022] Figure 4 yes Figure 2A partial enlarged schematic diagram of

[0023] Figure 5 yes Figure 3 A partial enlarged schematic diagram of .

[0024] The parts in the accompanying drawings are marked as follows:

[0025] 100, base;

[0026] 200, guide column;

[0027] 300, counterweight assembly; 301, load-bearing plate; 3011, guide hole; 302, counterweight block;

[0028] 400, limit assembly; 401, limit plate; 4011, limit hole; 402, limit rod; 403, nut; 404, mounting bracket; 405, proximity sensor; 406, induction sheet;

[0029] 500, offset drive assembly; 501, X moving unit; 5011, first fixed seat; 5012, first screw; 5013, first pointer; 5014, first scale; 502, Y moving unit; 5021, second fixed seat; 5022, second screw; 5023, moving platform; 5024, first connecting member; 5025, second connecting member; 5026, second pointer; 5027, second scale;

[0030] 600, pressure sensor;

[0031] 700, upper fixed seat;

[0032] 800, lower fixing seat;

[0033] 900, foot base. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0035] Example: Refer to Figure 1-Figure 5 As shown, a device for testing the deflection durability of an electric push rod comprises:

[0036] A base 100, a guide column 200, a counterweight assembly 300, a limit assembly 400 and an offset drive assembly 500, wherein the guide column 200 is arranged at the upper part of the base 100, the counterweight assembly 300 is sleeved on the outer periphery of the guide column 200, the counterweight assembly 300 can slide back and forth along the length direction of the guide column 200, and a pressure sensor 600 and an upper fixed seat 700 are arranged at the lower part of the counterweight assembly 300, the limit assembly 400 is arranged at the upper part of the guide column 200, the limit assembly 400 is used to limit the sliding of the counterweight assembly 300, the offset drive assembly 500 is arranged at the upper part of the base 100, and a lower fixed seat 800 is arranged at the upper part of the offset drive assembly 500.

[0037] Further, refer to Figure 2 As shown, the offset driving assembly 500 includes an X moving unit 501 and a Y moving unit 502;

[0038] The X moving unit 501 includes a first fixing seat 5011 and a first screw rod 5012 disposed on the upper portion of the first fixing seat 5011;

[0039] The Y moving unit 502 includes a second fixed seat 5021, a second screw rod 5022 disposed on the upper portion of the second fixed seat 5021, and a moving platform 5023 disposed on the upper portion of the second fixed seat 5021;

[0040] The second fixing seat 5021 is arranged on the upper part of the first fixing seat 5011 , and the lower part of the second fixing seat 5021 is connected to the first screw rod 5012 via a first connecting member 5024 , and the lower part of the moving platform 5023 is connected to the second screw rod 5022 via a second connecting member 5025 .

[0041] A first pointer 5013 is disposed on one side of the first fixing seat 5011, and a first scale 5014 is disposed on one side of the second fixing seat 5021;

[0042] A second pointer 5026 is disposed on one side of the second fixing base 5021 , and a second scale 5027 is disposed on one side of the moving platform 5023 .

[0043] By having the first pointer 5013 point to a position on the first scale 5014, the operator can visually observe the distance the electric push rod is offset along the X-axis. By having the second pointer 5026 point to a position on the second scale 5027, the operator can visually observe the distance the electric push rod is offset along the Y-axis, thereby making the operation more accurate.

[0044] Among them, the counterweight assembly 300 includes a load-bearing plate 301 and a plurality of counterweight blocks 302. The plurality of counterweight blocks 302 are arranged on the upper part of the load-bearing plate 301. The load-bearing plate 301 is provided with a guide hole 3011. The guide column 200 can be installed in the guide hole 3011. A ball linear bearing is also provided in the guide hole 3011. The guide column 200 slides in the ball linear bearing to reduce the friction between the guide column 200 and the guide column 200.

[0045] The limiting assembly 400 includes a limiting plate 401 and a limiting rod 402 . The limiting plate 401 is provided with a limiting hole 4011 . The lower part of the limiting rod 402 is connected to the load-bearing plate 301 . The upper part of the limiting rod 402 passes through the limiting hole 4011 . A nut 403 is provided on the upper part of the limiting rod 402 .

[0046] The lower end of the electric push rod is connected to the lower fixed seat 800, and the upper end of the electric push rod is connected to the upper fixed seat 700. A certain amount of counterweight block 302 is added to the load-bearing plate 301, and then the offset of the X-moving unit 501 and the Y-moving unit 502 are adjusted to simulate the offset of the electric push rod in actual working conditions, thereby realizing the offset durability test of the electric push rod.

[0047] The purpose of providing the limiting rod 402 and the limiting nut 403 is to prevent the electric push rod from being damaged during the test of the electric push rod, and to prevent the bearing plate 301 from suddenly falling and damaging the electric push rod, thereby protecting the electric push rod.

[0048] A mounting frame 404 is provided on one side of the limiting plate 401 , and two proximity sensors 405 are provided on the mounting frame 404 . Induction sheets 406 are provided at the upper and lower ends of the load-bearing plate 301 , respectively.

[0049] During the test of the electric push rod, the two proximity sensors correspond to the two sensing plates 406 respectively. If damage occurs, the load-bearing plate 301 drives the sensing plate 406 to descend, and the proximity sensor located at the upper part cannot sense the sensing plate 406. The proximity sensor transmits the signal to the controller, and the controller controls the alarm to sound an alarm.

[0050] In addition, a plurality of footrests 900 are disposed at the lower portion of the base 100 .

[0051] The working principle of the utility model is as follows:

[0052] 1. The lower end of the electric push rod is connected to the lower fixed seat 800, and the upper end of the electric push rod is connected to the upper fixed seat 700. A certain amount of counterweight 302 is added to the load-bearing plate 301. The pressure value currently borne by the electric push rod is read through the pressure sensor 600, and then the offset of the X mobile unit 501 and the Y mobile unit 502 is adjusted.

[0053] 2. Record the damage of the electric push rod at different times to achieve the offset durability test of the electric push rod.

[0054] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric push rod deflection durability test device, characterized in that: The test setup includes: A base, a guide column, a counterweight assembly, a limit assembly and an offset drive assembly, wherein the guide column is arranged at the upper part of the base, the counterweight assembly is sleeved on the outer circumference of the guide column, the counterweight assembly can slide back and forth along the length direction of the guide column, and a pressure sensor and an upper fixed seat are arranged at the lower part of the counterweight assembly, the limit assembly is arranged at the upper part of the guide column, and the limit assembly is used to limit the sliding of the counterweight assembly, the offset drive assembly is arranged at the upper part of the base, and a lower fixed seat is arranged at the upper part of the offset drive assembly.

2. The electric push rod deflection durability testing device according to claim 1, characterized in that: The offset drive assembly includes an X-moving unit and a Y-moving unit; The X moving unit includes a first fixed seat and a first screw arranged on the upper part of the first fixed seat; The Y moving unit includes a second fixed seat, a second screw arranged on the upper part of the second fixed seat, and a moving platform arranged on the upper part of the second fixed seat; The second fixing seat is arranged on the upper part of the first fixing seat, and the lower part of the second fixing seat is connected to the first screw rod through a first connecting member, and the lower part of the moving platform is connected to the second screw rod through a second connecting member.

3. The electric push rod deflection durability testing device according to claim 2, characterized in that: A first pointer is disposed on one side of the first fixing seat, and a first scale is disposed on one side of the second fixing seat; A second pointer is arranged on one side of the second fixing seat, and a second scale is arranged on one side of the moving platform.

4. The electric push rod deflection durability testing device according to claim 3, characterized in that: The counterweight assembly comprises a load-bearing plate and a plurality of counterweight blocks, wherein the plurality of counterweight blocks are arranged on the upper part of the load-bearing plate, and the load-bearing plate is provided with guide holes, and guide columns can be installed in the guide holes.

5. The electric push rod deflection durability testing device according to claim 4, characterized in that: The limiting assembly includes a limiting plate and a limiting rod, wherein the limiting plate is provided with a limiting hole, the lower portion of the limiting rod is connected to the load-bearing plate, the upper portion of the limiting rod passes through the limiting hole, and the upper portion of the limiting rod is provided with a nut.

6. The electric push rod deflection durability testing device according to claim 5, characterized in that: A mounting frame is arranged on one side of the limit plate, and two proximity sensors are arranged on the mounting frame. Induction sheets are arranged at the upper and lower ends of the load-bearing plate respectively.

7. The electric push rod deflection durability testing device according to claim 1, characterized in that: A plurality of footrests are arranged at the lower part of the base.

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