Oil-to-electricity automobile suspension spring test frame

Abstract

The utility model discloses an oil-to-electricity automobile suspension spring test frame, which relates to the technical field of electric automobiles and comprises a shell, a spring fixing mechanism is arranged in the shell and comprises an inner frame embedded in the shell, an annular air bag is arranged in the shell, and the annular air bag is connected with the inner frame. The inner ring of the annular air bag is fixedly connected with pull rods in an annular array, the ends, away from the annular air bag, of the pull rods penetrate through the inner frame and extend into the inner frame, and the ends, located in the inner frame, of the pull rods are fixedly connected with buckles. The annular air bag is inflated to expand, the pull rods are pushed to be close to each other, the pull rods push the buckles to be close to each other, then a worker places the spring bodies in the buckles, then the worker exhausts air in the annular air bag, the telescopic springs push the pull rods, and the pull rods pull the buckles to be away from each other; the bottom end of the spring body is operated by using the buckle, and then a worker carries out test operation on the fixed suspension spring.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, specifically a test frame for suspension springs in converted gasoline vehicles. Background Technology

[0002] Battery electric vehicles (BEVs) are vehicles that are powered by an onboard power source, using an electric motor to drive the wheels, and that meet all road traffic and safety regulations. Because they have a relatively smaller environmental impact compared to traditional vehicles, their future prospects are widely viewed as promising.

[0003] Converting a gasoline-powered car into an electric vehicle involves replacing the engine with an electric motor as the power source. This requires transmitting the motor's torque to the transmission system. Currently, the suspension springs used in converting gasoline-powered cars to electric vehicles are incompatible with those used in gasoline cars. Therefore, testing is necessary to resolve this mismatch. However, traditional suspension spring testing racks require bolts to secure the springs, a cumbersome and inconvenient process. To address this, we provide a suspension spring testing rack for converted gasoline-powered cars that solves these problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a test frame for suspension springs in electric vehicles converted from gasoline vehicles. The frame is easy to use for fixing the suspension springs and is convenient to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a test frame for suspension springs of a converted electric vehicle, comprising a housing, wherein a spring fixing mechanism is provided inside the housing, the spring fixing mechanism includes an inner frame embedded inside the housing, an annular airbag is provided inside the housing, and a pull rod arranged in a ring array is fixedly connected to the inner ring of the annular airbag, one end of the pull rod away from the annular airbag passes through the inner frame and extends into the interior of the inner frame, and a buckle is fixedly connected to one end of the pull rod located inside the inner frame, and a spring body is placed inside the buckle, and a telescopic spring is wound around the outer surface of each pull rod, one end of the telescopic spring is fixedly connected to the outer surface of the inner frame, and the other end of the telescopic spring is fixedly connected to the outer surface of the pull rod.

[0006] Furthermore, an air injection tube is fixedly connected to the outer surface of the annular airbag. One end of the air injection tube penetrates the outer shell and extends to the outside of the outer shell. A valve is fitted on the outer surface of the air injection tube to facilitate the operator to inject air into the annular airbag. At the same time, the valve can limit the air injection tube to prevent gas leakage inside the annular airbag and affect the normal use of the annular airbag.

[0007] Furthermore, a fixing base is fixedly connected to the bottom surface of the outer shell, and the upper surface of the fixing base is provided with fixing screw holes arranged in a ring, which facilitates the staff to fix the test frame by screwing, thereby improving the test frame.

[0008] Furthermore, a friction pad is fixedly connected to the bottom surface of the fixed base. The bottom surface of the friction pad is rough. The friction pad can further increase the friction between the fixed base and the mounting platform, improve the stability of the test frame during use, and prevent the test frame from sliding on the surface of the mounting platform, thus affecting the normal use of the test frame.

[0009] Furthermore, a pressure plate is provided at the top of the spring body, and a round hole is provided in the middle of the pressure plate to facilitate the connection of the spring body with the pressure equipment for pressure testing, thereby facilitating the testing of the spring body and improving the overall ease of operation.

[0010] Furthermore, a disc is fixedly connected to the upper surface of the outer shell, and an annular placement groove is formed on the upper surface of the disc. The staff can place the tools in the placement groove during the testing process, which is convenient for storing the tools and avoids the tools being lost during use.

[0011] Furthermore, an operation sign is provided on the front of the housing. The operation sign is fixedly connected to the housing by bolts, which can effectively remind the staff to operate according to the correct method and avoid spring test failure due to improper operation.

[0012] Compared with existing technologies, this test fixture for suspension springs in converted electric vehicles has the following advantages:

[0013] 1. This utility model utilizes an annular airbag that expands under air to push the pull rods closer together. The pull rods then push the buckles closer together. Afterward, the worker places the spring body inside the buckle. The worker then expels the air from the annular airbag, and the telescopic spring pushes the pull rods, causing the pull rods to pull the buckles away from each other. The buckles work on the bottom end of the spring body. Afterward, the worker can test the fixed suspension spring.

[0014] 2. This utility model features a fixed base that allows workers to easily secure the test frame with a screw, thus improving its height. A pressure plate facilitates the connection between the spring body and the pressure equipment for pressure testing, enhancing overall operational convenience. The disc design allows workers to store tools during testing in a designated slot, preventing tool loss. Operation labels effectively remind workers to operate correctly, avoiding test failures due to improper operation. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2This is a bottom view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the outer shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner frame mechanism of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Spring fixing mechanism; 201. Annular airbag; 202. Telescopic spring; 203. Inner frame; 204. Pull rod; 205. Buckle; 3. Disc; 4. Pressure plate; 5. Spring body; 6. Operation sign; 7. Fixing base; 8. Friction pad; 9. Air injection pipe. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] Therefore, this embodiment provides a suspension spring test rack for converted electric vehicles. The device is easy to use and convenient to operate, making it easy to fix the suspension springs.

[0022] See Figures 1 to 4 This embodiment proposes a test frame for suspension springs of electric vehicles converted from gasoline, including a housing 1. A fixing seat 7 is fixedly connected to the bottom surface of the housing 1. The upper surface of the fixing seat 7 is provided with fixing screw holes arranged in a ring, which facilitates the operator to fix the test frame by screws and improves the performance of the test frame.

[0023] A friction pad 8 is fixedly connected to the bottom surface of the fixed base 7. The bottom surface of the friction pad 8 is rough. The friction pad 8 can further increase the friction between the fixed base 7 and the installation platform, improve the stability of the test frame during use, and prevent the test frame from sliding on the surface of the installation platform, which would affect the normal use of the test frame.

[0024] The outer shell 1 is provided with a spring fixing mechanism 2 inside. The spring fixing mechanism 2 includes an inner frame 203 embedded inside the outer shell 1. The outer shell 1 is provided with an annular airbag 201 inside.

[0025] An airbag 201 has an inflation tube 9 fixedly connected to its outer surface. One end of the inflation tube 9 passes through the outer shell 1 and extends to the outside of the outer shell 1. A valve is fitted on the outer surface of the inflation tube 9 to facilitate the inflation of the airbag 201 by the operator. At the same time, the valve can limit the inflation tube 9 to prevent gas leakage inside the airbag 201 and affect the normal use of the airbag.

[0026] The inner ring of the annular airbag 201 is fixedly connected to a pull rod 204 arranged in a ring. The end of the pull rod 204 away from the annular airbag 201 passes through the inner frame 203 and extends into the interior of the inner frame 203. The end of the pull rod 204 located inside the inner frame 203 is fixedly connected to a buckle 205. A spring body 5 is placed inside the buckle 205.

[0027] Reference Figure 4 A slip ring is embedded at the position where the pull rod 204 passes through the inner frame 203, and the outer surface of the pull rod 204 is slidably connected to the inner wall of the slip ring, which can effectively reduce the friction between the pull rod 204 and the inner frame 203 and prevent the outer surface of the pull rod 204 from wearing out after long-term use.

[0028] The top of the spring body 5 is provided with a pressure plate 4, and a round hole is provided in the middle of the pressure plate 4 to facilitate the connection of the spring body 5 with the pressure equipment for pressure testing. This facilitates the testing of the spring body 5 and improves the overall ease of operation.

[0029] Each pull rod 204 has a telescopic spring 202 wound around its outer surface. One end of the telescopic spring 202 is fixedly connected to the outer surface of the inner frame 203, and the other end of the telescopic spring 202 is fixedly connected to the outer surface of the pull rod 204.

[0030] A disc 3 is fixedly connected to the upper surface of the outer shell 1. An annular placement groove is provided on the upper surface of the disc 3. The staff can place the tools in the placement groove during the test to facilitate the storage of the tools and avoid the loss of the tools during use.

[0031] An operation sign 6 is provided on the front of the outer casing 1. The operation sign 6 is fixedly connected to the outer casing 1 by bolts, which can effectively remind the staff to operate according to the correct method and avoid the failure of spring test due to improper operation.

[0032] Reference Figure 3 A connecting plate is fixedly connected to the inner top wall of the outer shell 1. The bottom end of the connecting plate is fixedly connected to the upper surface of the annular airbag 201, which can effectively increase the stability of the annular airbag 201 during use.

[0033] Working principle: First, air is injected into the annular airbag 201 through the air injection pipe 9 using an air compressor or other equipment. The annular airbag 201 expands under air, pushing the pull rods 204 closer together. The pull rods 204 then push the buckles 205 closer together. After that, the operator places the spring body 5 inside the buckles 205. Then, the operator expels the air from inside the annular airbag 201. The telescopic spring 202 pushes the pull rods 204, causing the pull rods 204 to pull the buckles 205 away from each other. The buckles 205 work on the bottom end of the spring body 5. After that, the operator can test the fixed suspension spring.

Claims

1. A test stand for suspension springs of oil-to-electric vehicles, comprising a housing (1), characterized in that: A spring fixing mechanism (2) is provided inside the shell (1), and the spring fixing mechanism (2) comprises an inner frame (203) embedded inside the shell (1); an annular airbag (201) is provided inside the shell (1); the inner ring of the annular airbag (201) is fixedly connected to a pull rod (204) in an annular array; one end of the pull rod (204) away from the annular airbag (201) passes through the inner frame (203) and extends to the inside of the inner frame (203); one end of the pull rod (204) located inside the inner frame (203) is fixedly connected to a buckle (205); a spring body (5) is placed inside the buckle (205); a telescopic spring (202) is wound around the outer surface of each pull rod (204); one end of the telescopic spring (202) is fixedly connected to the outer surface of the inner frame (203); and the other end of the telescopic spring (202) is fixedly connected to the outer surface of the pull rod (204).

2. The oil-to-electric vehicle suspension spring test stand according to claim 1, characterized in that: The outer surface of the annular airbag (201) is fixedly connected to an air injection pipe (9), one end of the air injection pipe (9) penetrates the outer shell (1) and extends to the outside of the outer shell (1), and a valve is sleeved on the outer surface of the air injection pipe (9).

3. The oil-to-electric vehicle suspension spring test stand according to claim 1, characterized in that: The bottom surface of the housing (1) is fixedly connected to a fixing seat (7), and the upper surface of the fixing seat (7) is provided with fixing screw holes in a circular array.

4. The oil-to-electric vehicle suspension spring test stand according to claim 3 is characterized by: The bottom surface of the fixed seat (7) is fixedly connected with a friction pad (8), and the bottom surface of the friction pad (8) is rough.

5. The oil-to-electric vehicle suspension spring test stand according to claim 1, characterized in that: A pressing plate (4) is provided at the top end of the spring body (5), and a circular hole is opened in the middle of the pressing plate (4).

6. The oil-to-electric vehicle suspension spring test stand according to claim 1, characterized in that: A disc (3) is fixedly connected to the upper surface of the housing (1), and an annular placement groove is provided on the upper surface of the disc (3).

7. The oil-to-electric vehicle suspension spring test stand according to claim 1, characterized in that: An operation sign (6) is provided on the front of the housing (1), and the operation sign (6) is fixedly connected to the housing (1) by means of bolts.

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