Air spring double-station durability test bench
By designing an empty spring double-station durability test bench, the problem of poor testing efficiency of existing equipment was solved, and efficient durability testing and production capacity improvement were achieved.
Patent Information
- Application Number
- CN202423054183.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The testing efficiency of existing air spring durability testing equipment is poor, affecting production capacity.
A double-station durability test bench for empty springs is designed, including a base plate, an empty spring fixing frame, a vertical frame, a lifter, a loading part and a decoupling part. Vertically spaced empty spring fixtures are arranged on the empty spring fixing frame, and efficient pressure loading and unloading are achieved by using the lifter and decoupling part. The distance between the ball head and the screw is adjusted to balance the angular deflection of the empty spring.
The number of test empty springs per unit area is increased, the wear of the test pieces is reduced, efficient and durable testing is achieved, and production capacity is improved.
Smart Images
Figure CN223412955U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing equipment, in particular to an empty spring double-station durability testing bench. Background Art
[0002] Air spring durability test benches primarily simulate the dynamic operating environment of air springs in actual use, subjecting them to repeated pressure loading and unloading to evaluate their fatigue performance and durability. Existing durability test benches typically test air springs, steering knuckles, and other accompanying test pieces together, simulating actual durability conditions with a 1 / 4 empty spring bench configuration. Existing benches are typically single-station or dual-station, occupying a relatively large footprint. This limits the number of products that can be tested per unit area, slowing project progress. Utility Model Content
[0003] The technical problem to be solved by the present invention is that the test efficiency of the existing empty spring durability test equipment is poor, which affects the production capacity. In order to overcome the above defects of the existing technology, the present invention provides an empty spring double-station durability test bench.
[0004] The utility model provides an empty spring double-station durability test bench, comprising a base plate, an empty spring fixing frame, a vertical frame, a lifter, a loading part and a decoupling part; the empty spring fixing frame is mounted on the base plate, the empty spring fixing frame is provided with a vertically arranged back plate, the back plate is provided with two empty spring clamps distributed at intervals along the vertical direction, and the empty spring clamps are used to fix the empty springs; the vertical frame is mounted on the base plate, the base of the lifter is mounted on the vertical frame, the lifting output end of the lifter is connected to the upper end of the loading part, the lower end of the loading part is connected to the decoupling part, and the decoupling part is used to connect to the steering knuckles of the two empty springs.
[0005] Compared with the existing technology, the double-station durability test bench for empty springs in the present application has the following advantages: by installing an empty spring fixing frame on the bottom plate, a back plate is provided on the empty spring fixing frame, and two empty spring clamps distributed along the vertical interval are provided on the back plate, so that the two empty springs are stably set on the back plate, which is beneficial to the vertical space and increases the number of tested empty springs per unit area. At the same time, the lifter cooperates with the loading part and the decoupling part to transmit the vertical loading force to the steering knuckles of the two empty springs, and performs repeated pressure loading and unloading to achieve efficient durability testing, thereby improving the durability testing efficiency of the empty springs and increasing production capacity.
[0006] In a possible embodiment, the decoupling part includes a first ball head fixture, a second ball head fixture and a screw rod, the first ball head fixture is screwed to the upper end of the screw rod, the second ball head fixture is screwed to the lower end of the screw rod, and the first ball head fixture and the second ball head fixture are both used to connect the steering knuckle of the empty spring.
[0007] Compared with the existing technology, the above technical solution can release the interaction force between the two empty springs during loading through the ball head, and the distance between the two ball heads can be adjusted to avoid the inability to release the angle due to insufficient distance, thereby reducing the wear of the test piece, that is, balancing the angular deflection caused by the two empty springs being tested together, and balancing the deflection angle of the empty spring during testing by adjusting the length of the screw rod, thereby achieving the purpose of loading together.
[0008] In a possible implementation manner, a first nut and a second nut are spirally sleeved on the screw rod, the first nut is used to abut against the first ball head fixture, and the second nut is used to abut against the second ball head fixture.
[0009] Compared with the prior art, the above technical solution can improve the connection reliability of the screw rod between the first ball head fixture and the second ball head fixture.
[0010] In a possible embodiment, the loading part includes an upper ball head tooling, a lower ball head tooling and a screw, the upper end of the screw is screwed to the upper ball head tooling, the upper ball head tooling is connected to the lifting output end of the lifter, the lower end of the screw is screwed to the lower ball head tooling, and the lower ball head tooling is connected to the first ball head tooling.
[0011] Compared with the existing technology, the above technical solution can reliably transmit the vertical loading force of the lifter to the decoupling part, and at the same time facilitate the adjustment of the distance between the upper and lower ball heads, which can effectively alleviate the rotation of the loading part.
[0012] In a possible implementation manner, an upper nut and a lower nut are spirally sleeved on the screw rod, the upper nut is used to abut against the upper ball head fixture, and the lower nut is used to abut against the lower ball head fixture.
[0013] Compared with the existing technology, the above technical solution can improve the connection reliability of the screw between the upper ball head tooling and the lower ball head tooling.
[0014] In a possible implementation, the distance between the upper ball head tooling and the lower ball head tooling is greater than 650 mm.
[0015] Compared with the existing technology, the above technical solution can specifically limit the distance between the upper ball head tooling and the lower ball head tooling, thereby ensuring test reliability.
[0016] In a possible implementation, the lifter is an oil cylinder, a pneumatic cylinder, or an electric cylinder.
[0017] Compared with the prior art, the above technical solution can achieve stable loading of the loading part. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a structural diagram of the decoupling part;
[0020] Figure 3 It is a structural diagram of the loading part;
[0021] Figure 4 It is a structural diagram of the empty spring fixing frame;
[0022] Description of reference numerals:
[0023] 1. Base plate; 2. Empty spring fixing frame; 21. Back plate; 22. Empty spring fixture; 3. Vertical frame; 4. Lifter; 5. Loading part; 51. Upper ball head fixture; 52. Lower ball head fixture; 53. Screw; 54. Upper nut; 55. Lower nut; 6. Decoupling part; 61. First ball head fixture; 62. Second ball head fixture; 63. Screw; 64. First nut; 65. Second nut. DETAILED DESCRIPTION
[0024] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.
[0025] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.
[0026] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] See also Figures 1 to 4The embodiment of the present application discloses a double-station durability test bench for an empty spring, comprising a base plate 1, an empty spring fixing frame 2, a vertical frame 3, a lifter 4, a loading portion 5, and a decoupling portion 6. The empty spring fixing frame 2 is mounted on the base plate 1. The empty spring fixing frame 2 is provided with a vertically arranged support plate 21. The support plate 21 is provided with two empty spring clamps 22 spaced apart vertically. The two empty spring clamps 22 are mirror images of each other, and the dimensions of each position for cooperating with the empty spring are as consistent as possible with those of an actual vehicle. The empty spring clamps 22 are used to fix the empty springs. The vertical frame 3 is mounted on the base plate 1, and the base of the lifter 4 is mounted on the vertical frame 3. The lifting output end of the lifter 4 is connected to the upper end of the loading portion 5, and the lower end of the loading portion 5 is connected to the decoupling portion 6. The decoupling portion 6 is used to connect to the steering knuckles of the two empty springs. The lifter 4 is a cylinder.
[0029] As can be seen from the above, by installing an empty spring fixing frame 2 on the base plate 1, a back plate 21 is provided on the empty spring fixing frame 2, and two empty spring clamps 22 distributed along the vertical interval are provided on the back plate 21, so that the two empty springs are stably set on the back plate 21, which is beneficial to the vertical space and increases the number of tested empty springs per unit area. At the same time, the lifter 4 cooperates with the loading part 5 and the decoupling part 6 to transfer the vertical loading force to the steering knuckles of the two empty springs, and performs repeated pressure loading and unloading to achieve efficient durability testing, thereby improving the durability testing efficiency of the empty springs and increasing production capacity.
[0030] In this embodiment, the decoupling part 6 includes a first ball head fixture 61, a second ball head fixture 62 and a screw rod 63. The first ball head fixture 61 is screwed to the upper end of the screw rod 63, and the second ball head fixture 62 is screwed to the lower end of the screw rod 63. The first ball head fixture 61 and the second ball head fixture 62 are both used to connect the steering knuckle of the empty spring, so that the interaction force between the two empty springs during loading can be released through the ball head. The distance between the two ball heads can be adjusted to avoid the inability to release an angle due to insufficient distance, reduce the wear of the test piece, that is, balance the angular deflection caused by the two empty springs when tested together, and balance the deflection angle of the empty spring during testing by adjusting the length of the screw rod 63, so as to achieve the purpose of loading together.
[0031] In this embodiment, a first nut 64 and a second nut 65 are spirally sleeved on the screw rod 63. The first nut 64 is used to abut against the first ball head fixture 61, and the second nut 65 is used to abut against the second ball head fixture 62, thereby improving the connection reliability of the screw rod 63 between the first ball head fixture 61 and the second ball head fixture 62.
[0032] In this embodiment, the loading part 5 includes an upper ball head fixture 51, a lower ball head fixture 52 and a screw 53. The upper end of the screw 53 is screwed to the upper ball head fixture 51, and the upper ball head fixture 51 is connected to the lifting output end of the lifter 4. The lower end of the screw 53 is screwed to the lower ball head fixture 52, and the lower ball head fixture 52 is connected to the first ball head fixture 61. In this way, the vertical loading force of the lifter 4 can be reliably transmitted to the decoupling part 6, and the spacing between the upper and lower ball heads can be conveniently adjusted, which can effectively alleviate the rotation of the loading part 5.
[0033] In this embodiment, an upper nut 54 and a lower nut 55 are spirally sleeved on the screw rod 53. The upper nut 54 is used to abut against the upper ball head fixture 51, and the lower nut 55 is used to abut against the lower ball head fixture 52, thereby improving the connection reliability of the screw rod 53 between the upper ball head fixture 51 and the lower ball head fixture 52.
[0034] In this embodiment, the distance between the upper ball head fixture 51 and the lower ball head fixture 52 is greater than 650 mm, thereby specifically limiting the distance between the upper ball head fixture 51 and the lower ball head fixture 52 to ensure test reliability.
[0035] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.
[0036] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0037] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. An empty spring double-station durability test bench, characterized in that: The invention comprises a base plate (1), an empty spring fixing frame (2), a stand (3), a lifter (4), a loading part (5) and a decoupling part (6); the empty spring fixing frame (2) is mounted on the base plate (1); a vertically arranged supporting plate (21) is provided on the empty spring fixing frame (2); two empty spring clamps (22) are vertically spaced and arranged on the supporting plate (21); the empty spring clamps (22) are used to fix the empty springs; The stand (3) is mounted on the base plate (1), the base of the lifter (4) is mounted on the stand (3), the lifting output end of the lifter (4) is connected to the upper end of the loading part (5), the lower end of the loading part (5) is connected to the decoupling part (6), and the decoupling part (6) is used to connect to the steering knuckles of the two empty springs.
2. The double-station endurance test bench for empty springs according to claim 1, characterized in that: The decoupling part (6) comprises a first ball head fixture (61), a second ball head fixture (62) and a screw rod (63), wherein the first ball head fixture (61) is screwed to the upper end of the screw rod (63), and the second ball head fixture (62) is screwed to the lower end of the screw rod (63), and the first ball head fixture (61) and the second ball head fixture (62) are both used for connecting the steering knuckle of the empty spring.
3. The double-station endurance test bench for empty springs according to claim 2, characterized in that: A first nut (64) and a second nut (65) are spirally sleeved on the screw rod (63); the first nut (64) is used to abut against the first ball head fixture (61); and the second nut (65) is used to abut against the second ball head fixture (62).
4. The double-station endurance test bench for empty springs according to claim 2, characterized in that: The loading part (5) comprises an upper ball head fixture (51), a lower ball head fixture (52) and a screw rod (53); the upper end of the screw rod (53) is screwed to the upper ball head fixture (51); the upper ball head fixture (51) is connected to the lifting output end of the lifter (4); the lower end of the screw rod (53) is screwed to the lower ball head fixture (52); and the lower ball head fixture (52) is connected to the first ball head fixture (61).
5. The double-station endurance test bench for empty springs according to claim 4, characterized in that: An upper nut (54) and a lower nut (55) are spirally sleeved on the screw rod (53). The upper nut (54) is used to abut against the upper ball head fixture (51), and the lower nut (55) is used to abut against the lower ball head fixture (52).
6. The double-station endurance test bench for empty springs according to claim 4, characterized in that: The distance between the upper ball head fixture (51) and the lower ball head fixture (52) is greater than 650 mm.
7. The double-station endurance test bench for empty springs according to claim 1, characterized in that: The lifter (4) is an oil cylinder, a pneumatic cylinder or an electric cylinder.