A shock absorber testing device

Abstract

The present application relates to the technical field of shock absorber detection, and discloses a shock absorber testing device, comprising a dynamometer and a tool, the dynamometer has two mounting surfaces oppositely arranged along the vertical direction, and each mounting surface is provided with a threaded mounting column; the tool comprises a connecting piece and a mounting piece, the connecting piece is detachably connected with the threaded mounting column, and the mounting piece is detachably connected with the connecting piece; and the mounting piece is used for connecting the shock absorber. The shock absorber testing device of the present application is characterized in that the tool is designed as a detachable connecting piece and a mounting piece, the connecting piece is connected with the threaded mounting column of the dynamometer, and the mounting piece is connected with the connecting piece and the shock absorber, so that the size specification of the mounting piece can be replaced to adapt to shock absorbers with different size specifications at the end, while keeping the connecting piece unchanged, thereby facilitating the installation of the shock absorber and the replacement of the jig tool.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorber detection, in particular to a shock absorber testing device. Background Art

[0002] Shock absorbers are crucial components of automotive suspension systems, primarily attenuating vehicle vibrations and controlling their amplitude during driving. During shock absorber performance testing, fixtures are required to securely mount both ends of the shock absorber to the test bench.

[0003] However, the two ends of the existing different shock absorbers have various structures and specifications, resulting in a wide variety of test fixtures, which take up a large storage space and are inconvenient to replace. Summary of the Invention

[0004] The purpose of the present invention is to provide a shock absorber testing device, which can facilitate the replacement of clamps at both ends of the shock absorber.

[0005] In order to achieve the above object, the present invention provides a shock absorber testing device, comprising:

[0006] A dynamometer having two mounting surfaces disposed opposite to each other in a vertical direction, each of the mounting surfaces being provided with a threaded mounting post;

[0007] The tooling includes a connecting piece and a mounting piece, the connecting piece is detachably connected to the threaded mounting column, the mounting piece is detachably connected to the connecting piece, and the mounting piece is used to connect the shock absorber.

[0008] In some embodiments, the connecting member has a first connecting end and a second connecting end that are separated from each other, a first threaded hole is formed in the middle of an end surface of the first connecting end, and the connecting member is connected to the threaded mounting post through the first threaded hole, and a first receiving groove is formed in the middle of an end surface of the second connecting end;

[0009] The mounting member has a first mounting surface, a mounting boss protruding from the first mounting surface is provided in the middle of the first mounting surface, the mounting boss is accommodated in the first accommodating groove and the first mounting surface abuts the end surface of the second connecting end, and a second threaded hole is provided on the mounting boss that passes through the mounting member, and the second threaded hole is used to connect one end of the shock absorber.

[0010] Furthermore, the outer periphery of the connecting member has at least two first clamping walls parallel to each other, and the two first clamping walls are located on both sides of the first threaded hole.

[0011] In some embodiments, the connecting piece comprises a base and a boss arranged in the middle of one end surface of the base, the boss is arranged integrally with the base, the outer periphery of the base protrudes from the outer periphery of the boss, and the base is connected with the threaded mounting column;

[0012] The mounting piece is columnar, a second accommodating groove is arranged at one end of the mounting piece, the mounting piece is arranged on the boss through the second accommodating groove, and an accommodating groove is arranged at the other end of the mounting piece, which is used for accommodating one end of the shock absorber.

[0013] In some embodiments, a clamping groove is arranged on one side of the connecting piece, third threaded holes are arranged on two opposite groove walls of the clamping groove and penetrate the inner and outer sides of the clamping groove;

[0014] The mounting piece comprises two clamping pieces, the clamping pieces are arranged in the third threaded holes and are threadedly connected with the third threaded holes, and the two clamping pieces are cooperatively used for clamping one end of the shock absorber.

[0015] Further, the clamping piece comprises a clamping rod and a top cone, the clamping rod is arranged in the third threaded hole and is threadedly connected with the third threaded hole, the top cone is arranged at one end of the clamping rod in the clamping groove, and the top cone is used for positioning the center of the sleeve of the end of the shock absorber.

[0016] In some embodiments, the connecting piece comprises an adjusting rod and a locking nut, a fourth threaded hole is arranged on the first end surface of the adjusting rod, the connecting piece is connected with the threaded mounting column through the fourth threaded hole, a threaded part is arranged on the outer periphery of the second end of the adjusting rod, and the locking nut is threadedly connected with the outer periphery of the second end.

[0017] One side of the mounting piece is provided with a limiting groove, a through hole penetrating the bottom wall of the limiting groove is arranged, the through hole is used for the second end of the adjusting rod to pass through, the locking nut abuts against one side surface of the mounting piece away from the slot opening of the limiting groove, the slot opening of the limiting groove is inwardly contracted to form a contracted part, and the contracted part is used for limiting the end ring of the shock absorber.

[0018] Further, the outer periphery of the adjusting rod has at least two second clamping walls parallel to each other, and the two second clamping walls are located on both sides of the fourth threaded hole.

[0019] In some embodiments, the shock absorber testing device further comprises a main mounting frame, the main mounting frame comprising a pressure plate, a base plate, two bolt columns and two clamping nuts corresponding to the two bolt columns one by one, the base plate being provided with a fifth threaded hole, the base plate being threadedly connected to the threaded mounting column located on the lower side of the dynamometer through the fifth threaded hole, the pressure plate being arranged above the base plate relative to the base plate, the base plate being provided with first bolt column through holes on both sides of the fifth threaded hole, the pressure plate being provided with second bolt column through holes opposite to one of the first bolt column through holes, one of the bolt columns being passed through the first bolt column through holes and the second bolt column through holes in sequence, the pressure plate being provided with a bayonet opposite to another of the first bolt column through holes, the other of the bolt columns being passed through the other of the first bolt column through holes and the bayonet in sequence, the clamping nuts being threadedly connected to the bolt columns and abutting against a side of the pressure plate facing away from the base plate, the middle side wall of the pressure plate being provided with a positioning groove for passing one end of the shock absorber, and the connecting member being detachably connected to a side of the base plate facing the pressure plate.

[0020] The vibration damper testing device according to the embodiment of the present invention has the following advantages compared with the prior art:

[0021] By setting the tooling as a detachably connected connecting piece and mounting piece, the connecting piece is connected to the threaded mounting column of the dynamometer, and the mounting piece is connected to the connecting piece and the shock absorber, the size and specifications of the mounting piece can be replaced while keeping the connecting piece unchanged to adapt to shock absorbers with different sizes and specifications at the end, thereby facilitating the installation of the shock absorber and the replacement of the fixture tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the dynamometer;

[0023] Figure 2 is a schematic diagram of a shock absorber testing device according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a shock absorber testing device according to another embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of a tooling according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 A schematic cross-sectional view of a tooling of an embodiment;

[0027] Figure 6 is a schematic diagram of a tooling according to another embodiment of the present invention;

[0028] Figure 7 yes Figure 6 A schematic cross-sectional view of a tooling of an embodiment;

[0029] Figure 8 is a schematic diagram of a tooling according to another embodiment of the present invention;

[0030] Figure 9 is a schematic diagram of a tooling according to another embodiment of the present invention;

[0031] Figure 10 is a schematic diagram of a main mounting frame according to an embodiment of the present invention;

[0032] In the figure, 10, dynamometer; 11, mounting surface; 12, threaded mounting column; 20, tooling;

[0033] 21a, connecting member; 211a, first connecting end; 2111a, first threaded hole; 212a, second connecting end; 2121a, first receiving groove; 213a, first clamping wall; 22a, mounting member; 221a, first mounting surface; 222a, mounting boss; 2221a, second threaded hole;

[0034] 21b, connecting member; 211b, base; 212b, boss; 22b, mounting member; 221b, second receiving groove; 222b, receiving groove;

[0035] 21c, connecting member; 211c, clamping groove; 2111c, third threaded hole; 22c, mounting member; 222c, clamping member; 2221c, clamping rod; 2222c, top cone;

[0036] 21d, connecting member; 211d, adjusting rod; 2111d, first end; 21111d, fourth threaded hole; 2112d, second end; 2113d, second clamping wall; 212d, locking nut; 22d, mounting member; 221d, limiting groove; 2211d, through hole; 2212d, closing portion;

[0037] 23. Main mounting frame; 231. Pressing plate; 2311. Positioning slot; 2312. Bayonet; 232. Bottom plate; 2321. Fifth threaded hole; 233. Bolt column; 234. Clamping nut;

[0038] 90. Shock absorber. DETAILED DESCRIPTION

[0039] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one of these features.

[0042] like Figure 1 As shown, a vibration damper testing device according to a preferred embodiment of the present invention includes:

[0043] The dynamometer 10 has two mounting surfaces 11 arranged opposite to each other in the vertical direction, and each mounting surface 11 is provided with a threaded mounting post 12;

[0044] The tooling 20 includes a connecting piece and a mounting piece. The connecting piece is detachably connected to the threaded mounting column 12 , and the mounting piece is detachably connected to the connecting piece. The mounting piece is used to connect the shock absorber 90 .

[0045] Based on the shock absorber testing device of the above embodiment, by setting the tooling as a detachably connected connecting piece and mounting piece, the connecting piece is connected to the threaded mounting column of the dynamometer, and the mounting piece is connected to the connecting piece and the shock absorber, the size and specifications of the mounting piece can be replaced while keeping the connecting piece unchanged to adapt to shock absorbers with different sizes and specifications at the end, thereby facilitating the installation of the shock absorber and the replacement of the fixture tooling.

[0046] In some embodiments, the connecting member 21a has a first connecting end 211a and a second connecting end 212a that are separated from each other. A first threaded hole 2111a is defined in the middle of the end surface of the first connecting end 211a. The connecting member 21a is connected to the threaded mounting post 12 through the first threaded hole 2111a. A first receiving groove 2121a is defined in the middle of the end surface of the second connecting end 212a.

[0047] The mounting member 22a has a first mounting surface 221a, and a mounting boss 222a protruding from the first mounting surface 221a is provided in the middle of the first mounting surface 221a. The mounting boss 222a is accommodated in the first accommodating groove 2121a and the first mounting surface 221a abuts against the end surface of the second connecting end 212a. A second threaded hole 2221a is provided on the mounting boss 222a and passes through the mounting member 22a. The second threaded hole 2221a is used to connect one end of the shock absorber 90.

[0048] In the above embodiments, since the connecting member and the mounting member are detachably connected, the second threaded hole of the mounting member can have different specifications, so the connecting member can be connected to the mounting members with different second threaded hole specifications, and the connecting member is provided with a first accommodating groove, the mounting boss can be positioned in the first accommodating groove, and the end screw of the shock absorber can be extended into the first accommodating groove, thereby facilitating the adjustment of the height of the tooling to clamp the shock absorber.

[0049] Furthermore, the outer periphery of the connecting member 21a has at least two first clamping walls 213a parallel to each other, and the two first clamping walls 213a are located on both sides of the first threaded hole 2111a, so as to facilitate the use of tools to clamp the first clamping walls 213a to rotate the connecting member.

[0050] In some embodiments, the connecting member 21b includes a base 211b and a boss 212b provided in the middle of one end surface of the base 211b, the boss 212b is integrally provided with the base 211b, the outer periphery of the base 211b protrudes from the outer periphery of the boss 212b, and the base 211b is connected to the threaded mounting post 12;

[0051] The mounting member 22b is columnar, and a second receiving groove 221b is opened at one end of the mounting member 22b. The mounting member 22b is covered on the boss 212b through the second receiving groove 221b. The other end of the mounting member 22b is opened with a receiving groove 222b, and the receiving groove 222b is used to place one end of the shock absorber 90.

[0052] In the above embodiments, since the connecting member and the mounting member are detachably connected and the mounting member is provided with a receiving groove for receiving one end of the shock absorber, the mounting member with receiving grooves of different specifications can be replaced to adapt to different shock absorbers without the need to replace the connecting member accordingly.

[0053] In some embodiments, a clamping groove 211c is formed on one side of the connecting member 21c, and two opposite groove walls of the clamping groove 211c are provided with third threaded holes 2111c that penetrate the inner and outer sides of the clamping groove 211c;

[0054] The mounting member 22c includes two clamping members 222c, which are passed through the third threaded hole 2111c and threadedly connected to the third threaded hole 2111c. One end of the two clamping members 222c located in the clamping groove 211c cooperates to clamp one end of the shock absorber 90.

[0055] In the above embodiment, a connecting piece with a clamping groove and two clamping pieces threadedly connected to two opposite groove walls of the clamping groove are provided, so that the distance between the clamping pieces can be adjusted to clamp the lifting ring sleeve at the end of the shock absorber.

[0056] Furthermore, the clamping member 222c includes a clamping rod 2221c and a top cone 2222c. The clamping rod 2221c is inserted into and threadedly connected to the third threaded hole 2111c. The top cone 2222c is provided at one end of the clamping rod 2221c located within the clamping groove 211c. The top cone 2222c is used to locate the center of the sleeve at the end of the shock absorber 90. The provision of the top cone facilitates the positioning of the clamping member at the center of the sleeve at the end of the shock absorber.

[0057] In some embodiments, the connecting member 21d includes an adjusting rod 211d and a locking nut 212d. A fourth threaded hole 21111d is defined on an end surface of a first end 2111d of the adjusting rod 211d. The connecting member 21d is connected to the threaded mounting post 12 via the fourth threaded hole 21111d. A threaded portion is defined on an outer periphery of a second end 2112d of the adjusting rod 211d. The locking nut 212d is threadedly connected to an outer periphery of the second end 2112d.

[0058] A limiting groove 221d is provided on one side of the mounting member 22d, and a through hole 2211d is provided on the bottom wall of the limiting groove 221d. The through hole 2211d is used for the second end 2112d of the adjusting rod 211d to pass through. The locking nut 212d abuts against the side of the mounting member 22d away from the notch of the limiting groove 221d. The notch of the limiting groove 221d is contracted inward to form a closing portion 2212d, and the closing portion 2212d is used to limit the end lifting ring of the shock absorber 90.

[0059] The above embodiment provides a mounting member with a limiting slot, and a through hole is provided on the bottom wall of the limiting slot. The mounting member can be adjusted along the axial direction of the adjusting rod through the through hole, and a locking nut is used to lock the mounting member in the adjusted position. The limiting slot has an inward-retracted closing portion, thereby firmly clamping the end ring of the shock absorber.

[0060] Furthermore, the outer periphery of the adjusting rod 221d has at least two second clamping walls 2113d parallel to each other, and the two second clamping walls 2113d are located on both sides of the fourth threaded hole 21111d, so as to facilitate the use of tools to clamp the second clamping walls to rotate the adjusting rod.

[0061] In some embodiments, the shock absorber testing device further includes a main mounting frame 23, the main mounting frame 23 includes a pressure plate 231, a base plate 232, two bolt columns 233 and two clamping nuts 234 corresponding to the two bolt columns 233, the base plate 232 is provided with a fifth threaded hole 2321, the base plate 232 is threadedly connected to the threaded mounting column 12 on the lower side of the dynamometer 10 through the fifth threaded hole 2321, the pressure plate 231 is arranged above the base plate 232 relative to the base plate 232, the base plate 232 is provided with a first bolt column through hole on both sides of the fifth threaded hole 2321, the pressure plate 231 is provided with a first threaded hole 2321, and the pressure plate 231 is provided with a first threaded hole 2321. The bolt column passes through the second bolt column through hole opposite to the bolt column through hole, and one bolt column 233 passes through the first bolt column through hole and the second bolt column through hole in sequence. The pressure plate 231 is also provided with a bayonet 2312 opposite to the other first bolt column through hole. The other bolt column 233 passes through the other first bolt column through hole and the bayonet 2312 in sequence. The clamping nut 234 is threadedly connected to the bolt column 233 and abuts against the side of the pressure plate 231 away from the bottom plate 232. The middle side wall of the pressure plate 231 is provided with a bayonet groove 2311 for one end of the shock absorber 90 to pass through, and the connecting piece is detachably connected to the side of the bottom plate 232 facing the pressure plate 231. By providing a main mounting frame 23, the connecting member can be connected to the threaded mounting column, and the bottom plate 232 of the main mounting frame 23 and the pressure plate 231 with a clamping groove 2311 can clamp the shock absorber 90 from the upper and lower ends to the middle. Since the pressure plate 231 and the bottom plate 232 are connected by bolt columns 233, the distance between the pressure plate 231 and the bottom plate 232 can be adjusted to adapt to the clamping height of the shock absorber 90.

[0062] In summary, an embodiment of the present invention provides a shock absorber testing device, which facilitates the installation of the shock absorber and the replacement of the fixture tooling by setting the tooling as a detachably connected connecting part and the mounting part, the connecting part is connected to the threaded mounting column of the dynamometer, and the mounting part is connected to the connecting part and the shock absorber.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A shock absorber testing device, characterized in that: include: A dynamometer having two mounting surfaces disposed opposite to each other in a vertical direction, each of the mounting surfaces being provided with a threaded mounting post; A tooling, the tooling comprising a connecting piece and a mounting piece, the connecting piece being detachably connected to the threaded mounting post, the mounting piece being detachably connected to the connecting piece, and the mounting piece being used to connect to the shock absorber; The connecting member has a first connecting end and a second connecting end that are separated from each other, a first threaded hole is opened in the middle of the end surface of the first connecting end, and the connecting member is connected to the threaded mounting post through the first threaded hole, and a first receiving groove is opened in the middle of the end surface of the second connecting end; The mounting member has a first mounting surface, a mounting boss protruding from the first mounting surface is provided in the middle of the first mounting surface, the mounting boss is accommodated in the first accommodating groove, and the first mounting surface abuts against the end surface of the second connecting end, and a second threaded hole is provided on the mounting boss that passes through the mounting member, and the second threaded hole is used to connect to one end of the shock absorber; A clamping groove is formed on one side of the connecting member, and a third threaded hole is formed on two opposite groove walls of the clamping groove and passes through the inner and outer sides of the clamping groove; The mounting member includes two clamping members, each of which is passed through the third threaded hole and threadedly connected to the third threaded hole, and one end of the two clamping members located in the clamping groove cooperates to clamp one end of the shock absorber; The connecting member includes an adjusting rod and a locking nut, wherein a fourth threaded hole is formed on a first end surface of the adjusting rod, and the connecting member is connected to the threaded mounting column through the fourth threaded hole, and a threaded portion is formed on the outer periphery of the second end of the adjusting rod, and the locking nut is threadedly connected to the outer periphery of the second end; A limiting groove is formed on one side of the mounting member, and a through hole is formed on the bottom wall of the limiting groove, wherein the through hole is used for the second end of the adjusting rod to pass through, and the locking nut abuts against a side surface of the mounting member away from the notch of the limiting groove, and the notch of the limiting groove is inwardly contracted to form a closing portion, and the closing portion is used to limit the end lifting ring of the shock absorber; The cam is connected to the bottom plate by a threaded hole, and the cam is connected to the bottom plate by a threaded hole.

2. The shock absorber testing device according to claim 1, characterized in that: The outer periphery of the connecting member has at least two first clamping walls parallel to each other, and the two first clamping walls are located on both sides of the first threaded hole.

3. The shock absorber testing device according to claim 1, characterized in that: The connecting member includes a base and a boss provided in the middle of one end surface of the base, the boss is integrally provided with the base, the outer periphery of the base protrudes from the outer periphery of the boss, and the base is connected to the threaded mounting post; The mounting member is columnar, and a second receiving groove is provided at one end of the mounting member. The mounting member is arranged on the boss through the second receiving groove cover. A receiving groove is provided at the other end of the mounting member, and the receiving groove is used to place one end of the shock absorber.

4. The shock absorber testing device according to claim 1, characterized in that: The clamping member includes a clamping rod and a top cone. The clamping rod is inserted into the third threaded hole and is threadedly connected to the third threaded hole. The top cone is provided at one end of the clamping rod located in the clamping groove. The top cone is used to locate the center of the sleeve at the end of the shock absorber.

5. The shock absorber testing device according to claim 1, characterized in that: The outer periphery of the adjusting rod has at least two second clamping walls parallel to each other, and the two second clamping walls are located on both sides of the fourth threaded hole.

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