CN210863173U - Suspension shock absorber test device - Google Patents

Abstract

The utility model relates to a shock absorber test technical field discloses a hang shock absorber test device, including test bench, vibration exciter and interior pole stroke adjustment mechanism. Wherein, on the vibration exciter was fixed in the test bench, interior pole stroke adjustment mechanism included crimping subassembly, drum assembly and elastic rope, the upper end of crimping subassembly can with the vibration exciter butt, the lower extreme be configured into with hang the interior pole butt of shock absorber, multiunit drum assembly rotationally sets up on the test bench, drum assembly is located the both sides of crimping subassembly and is located the below of crimping subassembly, many elastic ropes can draw the both sides of dragging the crimping subassembly respectively and convolute on the drum assembly of homonymy. The utility model provides a hang shock absorber test device can adjust the stroke of hanging interior pole of shock absorber in a flexible way, makes the different interior pole homoenergetic that hangs the shock absorber keep in required certain stroke department, simple structure, and convenient to use need not a lot of debugging, great improvement efficiency of software testing.

Description

Suspension shock absorber test device

Technical Field

The utility model relates to a shock absorber test technical field especially relates to a hang shock absorber test device.

Background

The suspension damper is an important component in an automobile suspension system, can inhibit rebound vibration after a spring absorbs vibration, can reduce impact from a road surface, and improves the running smoothness of an automobile. The performance of the suspension damper has direct influence on the vibration attenuation capability of a suspension system, and has great influence on road noise, so that a suspension damper test device is generally required to be utilized to carry out high-frequency vibration transmission performance test on the suspension damper and carry out dynamic stiffness and rigid body modal frequency test on an inner rod of the suspension damper so as to ensure that the suspension damper has good use performance.

In testing suspension shock absorbers, it is often necessary to maintain the inner rod of the shock absorber at one-half of its maximum travel. The shape, the size and the like of the suspension shock absorber are different due to different vehicle types, the conventional suspension shock absorber testing device cannot be well adapted to the suspension shock absorbers of different vehicle types, and the inner rod can be kept at one half of the maximum stroke of the inner rod only by debugging the different suspension shock absorbers for many times, so that time and labor are consumed.

Therefore, a new suspension damper testing device is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Based on above, the utility model aims at providing a hang shock absorber test device, it compares with prior art, can adjust the interior pole stroke that hangs the shock absorber in a flexible way, makes the different interior pole homoenergetic that hangs the shock absorber keep in required certain stroke department, simple structure, convenient to use, the efficiency of software testing is high.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a suspension damper testing apparatus comprising:

a test bed;

the vibration exciter is fixed on the test bed;

the inner rod stroke adjusting mechanism comprises a crimping assembly, roller assemblies and elastic ropes, wherein the upper end of the crimping assembly can be abutted to a vibration exciter, the lower end of the crimping assembly is abutted to an inner rod of a suspension vibration absorber, the roller assemblies are rotatably arranged on the test bed, the roller assemblies are located on two sides of the crimping assembly and located below the crimping assembly, and the elastic ropes can be pulled on two sides of the crimping assembly respectively and wound on the roller assemblies on the same side.

Further, a base mechanism is included, the height of the base mechanism being adjustable, the base mechanism being configured to be connected with the lifting lug of the suspension damper.

Further, interior pole stroke adjustment mechanism still includes the retaining member, the retaining member with drum set connects and can fix the winding state of elastic cord.

Further, the roller assembly comprises a roller shaft, a roller and a handle, the roller shaft is arranged on the test bench, the roller is rotatably sleeved on the roller shaft, and the handle is connected with the roller.

Furthermore, the locking piece comprises a locking part and a screwing part, the locking part is in threaded fit with one end of the roller shaft, and the screwing part is rotated to drive the locking part to rotate, so that the elastic rope is clamped between the locking part and the roller shaft.

Further, the base mechanism comprises a base body and a lifting component, wherein the lifting component is arranged on the base body in a height adjustable mode, and the lifting component is configured to be connected with the lifting lug of the shock absorber.

Further, the base mechanism further comprises a stud, one end of the stud is connected with the lifting assembly, and the other end of the stud is in threaded connection with the base body.

Further, the base mechanism further comprises a locking ring, the locking ring is in threaded connection with the stud, and the end face of the locking ring can abut against the end face of the base body.

Further, the lifting assembly comprises a lifting plate and a connecting piece, the lifting plate is connected with one end of the stud, and the connecting piece is detachably arranged on the lifting plate in a position-adjustable mode and is configured to be connected with a lifting lug of the shock absorber.

Further, the connecting member includes a first connecting member and a second connecting member, the first connecting member and the second connecting member are selectively disposed on the lifting plate, the first connecting member is configured to be connected with the open type lifting lug of the shock absorber, and the second connecting member is configured to be connected with the circular ring type lifting lug of the shock absorber.

The utility model has the advantages that:

the utility model provides a suspension damper test device, because the lower extreme of crimping subassembly and the interior pole butt that hangs the shock absorber, the elastic cord pulls the both sides of crimping subassembly, and the drum subassembly is located the below of crimping subassembly, so when the elastic cord is convoluteed on the drum subassembly after, can produce a decurrent component force, make the crimping subassembly keep hanging the decurrent crimping power of shock absorber's interior pole to make the interior pole that hangs the shock absorber keep in a certain stroke department; when the stroke of the inner rod of different suspension shock absorbers needs to be adjusted, the winding length of the elastic rope can be adjusted by rotating the roller component to adjust the downward component force, so that the crimping component correspondingly rises and falls along with the downward component force, the stroke of the inner rod of the suspension shock absorber can be adjusted, and the inner rods of different suspension shock absorbers can be kept at a certain required stroke. The utility model provides a hang shock absorber test device can adjust the stroke of its interior pole to the shock absorber that hangs of difference in a flexible way, makes the interior pole homoenergetic that hangs the shock absorber of difference keep in required certain stroke department, simple structure, and convenient to use need not a lot of debugging, great improvement efficiency of software testing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a suspension damper testing device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an inner rod stroke adjusting mechanism provided in the embodiment of the present invention;

FIG. 3 is a schematic structural view of a roller assembly and retaining member according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a base mechanism provided in an embodiment of the present invention at a first angle;

fig. 5 is a schematic structural diagram of the base mechanism at a second angle according to the embodiment of the present invention.

In the figure:

100-suspension shock absorber; 101-open type lifting lug; 102-circular ring type lifting lug;

1-test bench; 11-a first gantry; 12-a second gantry; 13-a vibration exciter mounting plate; 14-fork groove

2-a vibration exciter;

3-an inner rod stroke adjusting mechanism; 31-a crimping assembly; 311-pressure rod; 312-a crimp plate; 313-attachment hole; 32-a roller assembly; 321-a drum shaft; 322-a roller; 323-a handle; 33-an elastic cord; 34-a locking member; 341-locking part; 342-a screw-on portion; 35-a connecting plate;

4-a base mechanism; 41-seat body; 411-a travel bar; 42-a lifting assembly; 421-a lifting plate; 422-a first connecting piece; 423-second connecting piece; 43-a stud; 44-locking ring; 441-rotating rod.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position", etc. are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present embodiment provides a suspension damper testing apparatus, which can be used for testing the high-frequency vibration transmission performance of a suspension damper 100 in an automobile and testing the dynamic stiffness and the rigid body modal frequency of an inner rod of the suspension damper 100. Specifically, the suspension damper testing device comprises a test bench 1, a vibration exciter 2 and an inner rod stroke adjusting mechanism 3. Wherein, the vibration exciter 2 is fixed on the test bed 1. The inner rod stroke adjusting mechanism 3 comprises a crimping assembly 31, roller assemblies 32 and elastic ropes 33, the upper end of the crimping assembly 31 can be abutted to the vibration exciter 2, the lower end of the crimping assembly 31 is abutted to the inner rod of the suspension vibration absorber 100, the plurality of groups of roller assemblies 32 are rotatably arranged on the test bench 1, the roller assemblies 32 are located on two sides of the crimping assembly 31 and below the crimping assembly 31, and the elastic ropes 33 can respectively drag two sides of the crimping assembly 31 and wind the roller assemblies 32 on the same side.

The utility model provides a suspension damper test device, because the lower extreme of crimping subassembly 31 and the interior pole butt of suspension damper 100, elasticity rope 33 draws the both sides of dragging crimping subassembly 31, and roller assembly 32 is located the below of crimping subassembly 31, so after elasticity rope 33 convolutes on roller assembly 32, can produce a decurrent component force, make crimping subassembly 31 keep hanging the decurrent crimping force of interior pole of damper 100 to make the interior pole of suspension damper 100 can keep in a certain stroke department; when the stroke of the inner rod of different suspension dampers 100 needs to be adjusted, the winding length of the elastic rope 33 can be adjusted by rotating the roller assembly 32 to adjust the magnitude of the downward component force, so that the crimping assembly 31 correspondingly rises and falls along with the magnitude of the downward component force, the stroke of the inner rod of the suspension damper 100 can be adjusted, and the inner rods of different suspension dampers 100 can be kept at a certain required stroke. The utility model provides a hang shock absorber test device can adjust the stroke of its interior pole to different suspension shock absorber 100 in a flexible way, makes different interior pole homoenergetic that hangs shock absorber 100 keep in required certain stroke department, simple structure, and convenient to use need not a lot of debugging, great improvement efficiency of software testing.

Preferably, as shown in fig. 1, the suspension damper testing apparatus provided by the present invention further includes a base mechanism 4, the height of the base mechanism 4 is adjustable, and the base mechanism 4 is configured to be connected with the lifting lug of the suspension damper 100. The height of the base mechanism 4 can be adjusted according to the length of the suspension damper 100 by arranging the base mechanism 4 to be height-adjustable, so that the suspension damper 100 can keep good fit with the crimping assembly 31 and the vibration exciter 2.

Specifically, as shown in fig. 1, the test bed 1 includes a first bed 11, a second bed 12 and an exciter mounting plate 13, the first bed 11 and the second bed 12 are spaced and arranged oppositely, one end of the exciter mounting plate 13 is connected to the first bed 11, the other end is connected to the second bed 12, and the exciter 2 is fixed on the exciter mounting plate 13. Optionally, the exciter mounting plate 13 is provided with a plurality of mounting hole sets, and the fastening member can pass through one of the mounting hole sets to fix the exciter 2 on the exciter mounting plate 13. Every group installation punch combination includes a plurality of mounting holes, and every group installation punch combination can correspond the vibration exciter 2 of installation a size, can install not unidimensional vibration exciter 2 through setting up multiunit installation punch combination to satisfy different installation demands. Optionally, fork pockets 14 are provided on both the first carriage 11 and the second carriage 12, and the pocket surfaces of the fork pockets 14 are configured to be able to abut against the forks of a forklift. By providing the fork pocket 14, the test stand 1 is more easily moved and transported.

Preferably, as shown in fig. 2, the inside lever stroke adjusting mechanism 3 further includes a locker 34, and the locker 34 is connected to the drum assembly 32 and can fix the winding state of the elastic cord 33. By arranging the locking member 34, the winding state of the elastic rope 33 can be locked, so that the crimping assembly 31 can keep stable crimping force on the inner rod of the suspension damper 100, and the inner rod of the suspension damper 100 can be always kept at a certain stroke.

Alternatively, as shown in fig. 2, the crimping assembly 31 includes a crimping rod 311 and a crimping plate 312, the elastic cord 33 is connected to the crimping plate 312, a top surface of the crimping plate 312 can abut against the exciter 2, a bottom surface of the crimping plate 312 is connected to one end of the crimping rod 311, and the other end of the crimping rod 311 is configured to abut against an inner rod of the suspension damper 100. Optionally, the crimping plate 312 is provided with a connection hole 313, one end of the elastic cord 33 is connected to the crimping plate 312 through the connection hole 313, the connection holes 313 are arranged on the crimping plate 312 in a rectangular array, and the center of the rectangle coincides with the center of the crimping plate 312. According to the arrangement of the mode, when the elastic ropes 33 drag the two sides of the crimping assembly 31, the stress balance of the crimping assembly 31 is guaranteed, and the stability of the crimping assembly 31 is guaranteed. Optionally, in this embodiment, four connection holes 313 are formed in the crimping plate 312, two of the connection holes 313 are located on one side of the crimping plate 312, the other two connection holes are symmetrically distributed on the other side of the crimping plate 312, each connection hole 313 can be connected with one elastic rope 33, and the two elastic ropes 33 connected with the two connection holes 313 on the same side are wound on the roller assembly 32 on the same side together.

Alternatively, as shown in fig. 3, the roller assembly 32 includes a roller shaft 321, a roller 322, and a handle 323, wherein the roller shaft 321 is disposed on the test bed 1, the roller 322 is rotatably sleeved on the roller shaft 321, and the handle 323 is connected to the roller 322. The roller 322 can be driven to rotate by rotating the handle 323, so as to adjust the winding length of the elastic rope 33 on the roller 322, and further adjust the magnitude of the downward force component of the elastic rope 33 on the crimping assembly 31. Optionally, the inner rod stroke adjusting mechanism 3 further includes a connecting plate 35, the connecting plate 35 is disposed on the test bed 1, and the roller shaft 321 is disposed on the connecting plate 35.

Alternatively, as shown in fig. 3, the locker 34 includes a locking portion 341 and a screw portion 342, the locking portion 341 is screw-engaged with one end of the drum shaft 321, and the locking portion 341 can be rotated by rotating the screw portion 342 so that the elastic cord 33 is clamped between the locking portion 341 and the drum shaft 321. That is, by adjusting the length of the screw engagement between the tightening part 341 and the drum shaft 321, the elastic cord 33 can be clamped and fixed by the end surface of the tightening part 341 and the end surface of the drum shaft 321, and the winding state of the elastic cord 33 can be fixed.

Alternatively, as shown in fig. 4, the base mechanism 4 includes a base body 41 and a lifting assembly 42, the lifting assembly 42 is height-adjustably disposed on the base body 41, and the lifting assembly 42 is configured to be connected with the lifting lug of the suspension damper 100. The setting of the base body 41 is beneficial to ensuring the stability of the whole base mechanism 4, the lifting assembly 42 is height-adjustably set on the base body 41, and the lifting height of the lifting assembly 42 relative to the base body 41 can be adjusted according to the length of the suspension shock absorber 100, so that the suspension shock absorber 100 can be well matched with the crimping assembly 31 and the vibration exciter 2. Optionally, the seat body 41 is frustum-shaped.

Optionally, as shown in fig. 4, the base mechanism 4 further includes a stud 43, one end of the stud 43 is connected to the lifting assembly 42, and the other end is connected to the seat body 41 by a screw. The height of the lifting assembly 42 can be adjusted by adjusting the screw-fit length of the stud 43 and the seat body 41. In addition, the stud 43 and the seat body 41 are in threaded fit, which is beneficial to keeping the lifting assembly 42 at a certain height, ensuring the stability of the height and preventing the lifting assembly 42 from descending under the action of pressure.

Alternatively, as shown in fig. 4, the base mechanism 4 further includes a locking ring 44, the locking ring 44 is screwed with the stud 43, and an end surface of the locking ring 44 can abut against an end surface of the base body 41. After the height of the lifting assembly 42 is adjusted to a desired height, the end surface of the locking ring 44 abuts against the end surface of the base body 41 by rotating the locking ring 44, so that the locking ring 44 can increase the length of the threaded fit with the stud 43 on one hand, and can increase the friction force between the locking ring 44 and the end surface of the base body 41 on the other hand, thereby being beneficial to preventing the stud 43 from rotating unexpectedly and further improving the stability of the height of the lifting assembly 42. Optionally, the locking ring 44 is provided with a plurality of rotating rods 441, and the plurality of rotating rods 441 are uniformly distributed along the circumferential direction of the locking ring 44. Through setting up the swing arm 441, can twist locking ring 44 laborsavingly fast, make the operation more simple and convenient.

Alternatively, as shown in fig. 5, in order to facilitate carrying and moving the base mechanism 4, the holder body 41 is provided with moving rods 411, and the two moving rods 411 are symmetrically arranged along the circumferential direction of the holder body 41.

Alternatively, as shown in fig. 4 and 5, the lifting assembly 42 includes a lifting plate 421 and a connecting member, the lifting plate 421 is connected to one end of the stud 43, and the connecting member is detachably and position-adjustably provided on the lifting plate 421 and configured to be connected to the lifting lug of the suspension damper 100. On the one hand, can dismantle and position adjustable setting the connecting piece on lifter plate 421, be favorable to changing different connecting pieces according to the lug of different grade type, the maintenance of the connecting piece of being convenient for simultaneously is changed, and on the other hand, set up connecting piece position adjustable setting on lifter plate 421, be favorable to adjusting the position of connecting piece according to the connection demand of difference to enlarge application scope. Optionally, the lifting plate 421 has a long waist-shaped hole, the connecting member has a fixing hole, and the fastener can pass through the long waist-shaped hole and the fixing hole to fix the connecting member to the lifting plate 421. That is, the long waist-shaped hole is formed in the lifting plate 421, so that the position of the connecting member on the lifting plate 421 can be adjusted.

Alternatively, as shown in fig. 4 and 5, the connection member includes a first connection member 422 and a second connection member 423, the first connection member 422 and the second connection member 423 are selectively disposed on the lifting plate 421, the first connection member 422 is configured to be connected to the open-type ear 101 of the suspension damper 100, and the second connection member 423 is configured to be connected to the circular-ring type ear 102 of the suspension damper 100. Since the types of the lugs of the suspension damper 100 are different, the first link 422 and the second link 423 may be adapted to various types of lugs, so that the applicable range may be expanded. Optionally, the first connecting elements 422 are L-shaped, two first connecting elements 422 are disposed opposite to each other, one first connecting element 422 is connected to one sidewall of the open type ear 101, and the other first connecting element 422 is connected to the other sidewall of the open type ear 101. Optionally, the second connecting member 423 is cylindrical, and the circular lifting lug 102 can be sleeved on the second connecting member 423.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A suspension damper testing apparatus, comprising:

a test stand (1);

the vibration exciter (2) is fixed on the test bench (1);

interior pole stroke adjustment mechanism (3), including crimping subassembly (31), drum assembly (32) and elasticity rope (33), the upper end of crimping subassembly (31) can with vibration exciter (2) butt, the lower extreme be configured into with hang the interior pole butt of shock absorber (100), multiunit drum assembly (32) rotationally set up in on test bench (1), drum assembly (32) are located the both sides of crimping subassembly (31) and are located the below of crimping subassembly (31), many elasticity rope (33) can be pulled respectively draw the both sides of crimping subassembly (31) and convolute in the homonymy on drum assembly (32).

2. The suspension shock absorber testing device according to claim 1, further comprising a base mechanism (4), the height of the base mechanism (4) being adjustable, the base mechanism (4) being configured to be connected with the lifting lug of the suspension shock absorber (100).

3. The suspension damper testing device according to claim 1, wherein the inner rod stroke adjusting mechanism (3) further comprises a locking member (34), and the locking member (34) is connected with the roller assembly (32) and can fix the winding state of the elastic rope (33).

4. The suspension damper testing device according to claim 3, wherein the roller assembly (32) comprises a roller shaft (321), a roller (322) and a handle (323), the roller shaft (321) is arranged on the test bench (1), the roller (322) is rotatably sleeved on the roller shaft (321), and the handle (323) is connected with the roller (322).

5. The suspension damper testing device according to claim 4, wherein the locking member (34) comprises a locking portion (341) and a screwing portion (342), the locking portion (341) is in threaded fit with one end of the roller shaft (321), and the locking portion (341) can be driven to rotate by rotating the screwing portion (342), so that the elastic rope (33) is clamped between the locking portion (341) and the roller shaft (321).

6. The suspension shock absorber testing device according to claim 2, wherein the base mechanism (4) comprises a base body (41) and a lifting assembly (42), the lifting assembly (42) being height-adjustably arranged on the base body (41), the lifting assembly (42) being configured for connection with the lifting lug of the suspension shock absorber (100).

7. A suspension damper testing device according to claim 6, characterized in that said base means (4) further comprises a stud (43), one end of said stud (43) being connected to said lifting assembly (42) and the other end being in threaded connection with said seat (41).

8. The suspension damper testing device according to claim 7, wherein the base mechanism (4) further comprises a locking ring (44), the locking ring (44) is threadedly connected with the stud (43), and an end surface of the locking ring (44) is capable of abutting against an end surface of the seat body (41).

9. The suspension damper testing device according to claim 7, wherein the lifting assembly (42) comprises a lifting plate (421) and a connector, the lifting plate (421) being connected with one end of the stud (43), the connector being detachably and position-adjustably arranged on the lifting plate (421) and configured to be connected with the lifting lug of the suspension damper (100).

10. The suspension shock absorber testing apparatus according to claim 9, wherein the connecting member comprises a first connecting member (422) and a second connecting member (423), the first connecting member (422) and the second connecting member (423) being selectively provided on the lifting plate (421), the first connecting member (422) being configured to be connected with the open eye (101) of the suspension shock absorber (100), the second connecting member (423) being configured to be connected with the circular eye (102) of the suspension shock absorber (100).

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