CN218956069U - Joint structure dynamics testing device - Google Patents

Abstract

The utility model discloses a dynamic testing device for a joint structure, which consists of a supporting upright post, a first transverse bracket, a second transverse bracket, a sliding device, a fixing device and a limiting fixing post, wherein the first transverse bracket and the second transverse bracket are detachably fixed on the supporting upright post, a first sliding rail and a second sliding rail are detachably arranged on the first transverse bracket, a third sliding rail and a fourth sliding rail are detachably arranged on the second transverse bracket, an upper sliding structure can slide up and down on the first sliding rail and the second sliding rail through the sliding device, a lower sliding structure can slide up and down on the third sliding rail and the fourth sliding rail through the sliding device, and the upper sliding structure and the lower sliding structure symmetrically design the joint up and down through the limiting fixing post, so that the design purpose of the vertical testing device is achieved. The utility model provides a joint structure power testing device which is used for testing the controllable load applied to an in-vitro joint assembly structure and testing the structural dynamics by applying the controllable load to the in-vitro joint assembly structure to be tested.

Description

Joint structure dynamics testing device

Technical Field

The utility model relates to the field of joint testing, in particular to a dynamic testing device for a joint structure.

Background

The dynamics of the joint structure as an assembled structure is nonlinear, and sources of such nonlinearity may include joint interface shape, interface contact, structural damage and wear, non-ideal boundary conditions, or inherent characteristics of the component materials, etc. In order to study these joint structural system features and determine if the system is functioning abnormally due to the abnormal functioning of the joint structural components, identification techniques are required to evaluate and characterize the system.

In the prior art, when the dynamic characteristics of a joint structure are tested, the in-vivo joint is mainly tested, as the joint structure is usually assembled by various components, uncontrollable factors exist in the test conditions, the test result is interfered by various factors, and the complex dynamic response obtained by the in-vivo joint structure test has poor accuracy and cannot accurately reflect the structural function state; in addition, the actual joint structure movement process is carried out under a certain load condition, and partial joint structure dynamics test in the prior art only tests the non-load condition of the joint structure, so that the accuracy of the test result is not high.

In order to solve the above problems, the present utility model provides a joint structure power test device for applying a controllable load to a non-living joint for testing.

Disclosure of Invention

The utility model aims to provide a joint structure power testing device which is simple in structure and convenient to operate, and is used for testing the controllable load applied to an in-vitro joint assembly structure, the proximal end and the distal end of the tested joint structure are fixed through a clamp, the joint structure moves under the constraint condition of a fixing device, and the aim of testing the structural dynamics is fulfilled by applying the controllable load to the tested in-vitro joint assembly structure.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a joint structure dynamics testing arrangement, testing arrangement comprises support post, first horizontal support, second horizontal support, slider, fixing device and spacing fixed column, first horizontal support can dismantle with the second horizontal support and fix on the support post, can dismantle on the first horizontal support and set up first slip track and second slip track, can dismantle on the second horizontal support and set up third slip track and fourth slip track, go up the slip structure and can slide from top to bottom at first slip track and second slip track through slider, but lower slip structure passes through slider and slides at third slip track and fourth slip track from top to bottom, go up the slip structure and pass through spacing fixed column with joint upper and lower symmetry design, reach perpendicular testing arrangement design purpose.

The upper sliding structure is provided with a limiting fixed column through the first sliding track and the second sliding track and is used for limiting the upper sliding structure to slide up and down or stopping the upper sliding structure from falling down; the lower sliding structure is provided with a limiting fixed column through a third sliding rail and a fourth sliding rail, and is used for limiting the lower sliding structure in an up-and-down sliding manner or stopping the lower sliding structure from falling down.

Further, the fixing devices are more than two, the upper fixing device and the lower fixing device are longitudinally symmetrical, the fixing devices are composed of support columns and cylindrical clamps, the fixing devices are detachably fixed on the upper sliding structure and the lower sliding structure through the support columns, the upper fixing devices are vertically arranged downwards, the lower fixing devices are vertically arranged upwards, and the longitudinally symmetrical design of the upper fixing device and the lower fixing device is achieved.

Further, through holes are formed in the periphery of the cylindrical clamp, and the through holes are used for fixing the proximal end of the joint structure to be tested through the penetrating type fixing needle to the hollow cavity in the inner side of the cylindrical clamp so as to ensure that the joints are vertically symmetrical and perpendicular, and the design purpose is achieved.

Further, the fixing device is respectively arranged on the upper sliding structure and the lower sliding structure, through holes are formed in the upper sliding structure and the lower sliding structure and used for adjusting the positions of the fixing device, and the fixing device can be moved up and down and left and right on the upper sliding structure and the lower sliding structure.

Further, the sliding device is matched with the sliding rail and can slide up and down in parallel.

Further, the sliding device is composed of a sliding part, a stud and a nut, the sliding part is arranged to be in a wrapping track shape, two side inward protrusions of the sliding part are matched with the sliding track, and the two side inward protrusions are matched with the sliding track to prevent derailment, so that the upper sliding structure and the lower sliding structure slide in parallel up and down.

Further, the sliding device is composed of a sliding angle piece, a stud and a nut, the sliding angle piece is composed of a left sliding angle piece and a right sliding angle piece, the left sliding angle piece and the right sliding angle piece are arranged in a track shape, the left sliding angle piece and the right sliding angle piece are arranged in a convex shape, and the left sliding angle piece and the right sliding angle piece are clamped in the middle of a sliding track to slide up and down in parallel through concave-convex matching.

Further, the left sliding corner piece is arranged in a convex shape, the right sliding corner piece is arranged in parallel, the left side of the left sliding corner piece is arranged in a concave shape through matching with the sliding rail, and the right side of the left sliding corner piece is clamped in the middle of the sliding rail in parallel and slides up and down in parallel.

Further, the number of the supporting struts is more than two, the supporting struts are round or any other shape, and the shape of the cylindrical clamp is preferably round, but can also be square or other geometric shapes.

The utility model has the following beneficial effects:

the utility model provides a joint structure power testing device which is used for testing an in-vitro joint assembly structure by applying controllable load, wherein a near end and a far end of a tested joint structure are fixed through a cylindrical clamp and move in a direction constrained by a fixing device and a sliding track, and the aim of testing the load of the joint is fulfilled by applying the controllable load to the fixing device.

The utility model provides a joint structure power testing device which is simple in structure and convenient to operate, and the joints are contacted in a limited angle through uniform movement of an in-vitro joint assembly body structure, so that equidistant loads of non-living joints are tested.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view showing a movable state structure of the fixing device of the present utility model.

Fig. 3 is a schematic structural view of a sliding device according to the present utility model.

Fig. 4 is a schematic structural view of a sliding device according to the present utility model.

Fig. 5 is an enlarged schematic view of the sliding device of the present utility model.

Fig. 6 is a schematic structural view of the fixing device of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1-supporting upright post, 2-first transverse bracket, 21-first sliding rail, 22-second sliding rail, 3-second transverse bracket, 31-third sliding rail, 32-fourth sliding rail, 4-sliding device, 41-stud, 42-nut, 43-sliding part, 45-left sliding corner piece, 46-right sliding corner piece, 5-fixing device, 51-pillar, 52-cylindrical clamp, 53-through hole, 6-upper sliding structure, 7-lower sliding structure and 8-limit fixing post.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1-6, the utility model is a dynamic testing device for joint structure, the testing device is composed of a supporting upright 1, a first transverse bracket 2, a second transverse bracket 3, a sliding device 4, a fixing device 5 and a limiting fixing column 8, wherein the supporting upright 1 is used for supporting the testing device for the dynamic monitoring device for joint, the supporting upright 1 is arranged as two or more than two, the supporting upright 1 is circular or any other shape, the first transverse bracket 2 is provided with a first sliding rail 21 and a second sliding rail 22, an upper sliding structure 6 can slide up and down on the first sliding rail 21 and the second sliding rail 22 through the sliding device 4, the sliding device 4 slides up and down in a transverse parallel manner on the first sliding rail 21 and the second sliding rail 22, and the upper sliding structure 6 is provided with the limiting fixing column 8 through the first sliding rail 21 and the second sliding rail 22 for the purpose of limiting the upper sliding structure 6 to slide up and down or stopping the upper sliding structure 6 from falling down; the second transverse bracket 3 is provided with a third sliding rail 31 and a fourth sliding rail 32, the lower sliding structure 7 can slide up and down on the third sliding rail 31 and the fourth sliding rail 32 through the sliding device 4, the sliding device 4 slides up and down in parallel transversely on the third sliding rail 31 and the fourth sliding rail 32, and the lower sliding structure 7 is provided with a limit fixing column 8 through the third sliding rail 31 and the fourth sliding rail 32 for limiting the lower sliding structure 7 to slide up and down or stopping the lower sliding structure 7 from falling; the number of the fixing devices 4 is two or less (as only two are shown in fig. 1 and 2), the upper fixing devices and the lower fixing devices are longitudinally and symmetrically arranged, the fixing device 5 consists of a support column 51 and a cylindrical clamp 52, the upper fixing devices are detachably fixed on the upper sliding structure 6 through the support column 51, the upper fixing devices are downwards and vertically arranged, the lower fixing devices are detachably fixed on the lower sliding structure 7 through the support column 51, the lower fixing devices are upwards and vertically arranged, and the upper sliding structure and the lower sliding structure are symmetrically designed up and down by virtue of a limiting fixing column, so that the design purpose of the vertical testing device is achieved; the cylindrical clamp 52 is preferably circular in shape, or may be square or have other geometric shapes, through holes 53 are formed around the cylindrical clamp 52, and the through holes 53 are used for fixing the proximal end of the joint structure to be tested on the hollow cavity inside the cylindrical clamp 52 through the penetrating type fixing needle, so as to ensure that the joint structure to be tested is vertically symmetrical to achieve the design purpose of the vertical testing device.

Further describing, the sliding device 4 of the first transverse bracket 2 passes through the upper sliding structure 6 through the stud 41 and is detachably fixed on the first sliding rail 21 and the second sliding rail 22 through the nut 42, and the upper sliding structure 6 is provided with a limit fixing column 8 through the first sliding rail 21 and the second sliding rail 22 for limiting the upper sliding structure 6 to slide up and down or stopping the upper sliding structure 6 from falling down; the second sliding plate device 4 of the transverse bracket 2 passes through the lower sliding structure 7 through the stud 41 and is detachably fixed on the third sliding track 31 and the fourth sliding track 32 through nuts, and the lower sliding structure 7 is provided with a limiting fixed column 8 through the third sliding track 31 and the fourth sliding track 32 for limiting the lower sliding structure 7 to slide up and down or stopping the lower sliding structure 7 from falling down;

further, through holes are formed on the first sliding rail 21 and the second sliding rail 22 for limiting the upper sliding structure 6 by the limiting fixing column 8 or stopping the upper sliding structure 6 to adjust the height distance; the through holes of the first sliding rail 21 and the through holes of the second sliding rail 22 are horizontally arranged in parallel, the through holes of the first sliding rail 21 and the through holes of the second sliding rail 22 are arranged into more than one group (only five groups are shown in fig. 1 and 2), the through holes of the third sliding rail 31 and the fourth sliding rail 32 are used for limiting or stopping the lower sliding structure 7 by the limiting fixed column 8, the through holes of the third sliding rail 31 and the through holes of the fourth sliding rail 32 are horizontally arranged in parallel, and the through holes of the third sliding rail 31 and the through holes of the fourth sliding rail 32 are arranged into more than one group (only five groups are shown in fig. 1 and 2) of adjustable horizontal parallel through holes.

Further, the fixing devices 5 are respectively disposed on the upper sliding structure 6 and the lower sliding structure 7, through holes are disposed on the upper sliding structure 6 and the lower sliding structure 7 for adjusting the positions of the fixing devices 5, the fixing devices 5 can be disposed on the upper sliding structure 6 and the lower sliding structure 7, and can be vertically and horizontally moved and adjusted, and can be designed into one or more groups of longitudinal symmetry according to the requirements (as shown in fig. 1 and 2, only one group of symmetry of the fixing devices is shown in fig. 2), and when in use, the longitudinal symmetry of the fixing devices 8 disposed on the upper sliding structure 6 and the lower sliding structure 7 is required to achieve the design purpose of the vertical test device.

Further, the sliding device 4 may be integrally provided with the upper sliding structure 6 and the lower sliding structure 7, and may match the purpose of sliding in parallel up and down with the first sliding rail 21, the second sliding rail 22, the third sliding rail 31, and the second sliding rail 32.

Further, as shown in fig. 3, the sliding device 4 is composed of a sliding portion 43, a stud 41 and a nut 42, the sliding portion 43 is provided with a wrapping rail, two sides of the sliding portion 43 are protruded inwards, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the second sliding rail 32 can be wrapped up and down in parallel and slide in the matching manner, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the second sliding rail 32 are arranged with two sides recessed inwards to be matched with the wrapping rail so as to be difficult to derail, two sides of the sliding portion 43 are provided with threaded through holes, the threaded through holes are provided with two or more than two, the threaded through holes penetrate through the upper sliding structure 6 and the threaded through holes of the sliding portion 43 through the stud 41 and are respectively fixed with the first sliding rail 21 and the second sliding rail 22 on the upper sliding structure 6 through the nut, the lower sliding structure 7 penetrates through the threaded through the stud 41 and the threaded through holes of the sliding portion 43 and is respectively fixed with the third sliding rail 31 and the fourth sliding rail 32 on the lower sliding structure 7 through the nut and is fixed on the upper sliding structure 7 and the lower sliding structure through the threaded through the nut.

Further, as shown in fig. 4, the sliding device 4 is composed of a sliding angle piece, a stud 41 and a nut 42, the sliding angle piece is composed of a left sliding angle piece 45 and a right sliding angle piece 46, the left sliding angle piece 45 and the right sliding angle piece 46 are arranged in a track shape, the left sliding angle piece 45 and the right sliding angle piece 46 are arranged in a convex shape, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the fourth sliding rail 32 can slide in parallel up and down in a matching manner, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the fourth sliding rail 32 are arranged in a concave-on-two side manner to achieve the purpose of matching up and down parallel sliding, when in use, the left sliding angle piece 45 and the right sliding angle piece 46 are arranged in a matching manner, the first sliding rail 21 is clamped in the middle of the left sliding angle piece 45 and the right sliding angle piece 46 through a threaded through hole of the stud 41 passing through the upper sliding structure 6 and the left sliding angle piece 45 and the right sliding angle piece 46, the first sliding rail 21, the second sliding rail 21 is clamped in the middle of the left sliding angle piece 45 and the right sliding angle piece 46 through the nut 42, the first sliding rail 21 is matched with the second sliding rail 31 in the middle sliding structure and the middle sliding rail 21 is clamped in the same sliding mode, and the other sliding structure is slid up and down in parallel up and down sliding mode is achieved by sliding up and down sliding in the sliding mode.

Further, on the basis of fig. 4, the sliding device 4 is composed of a sliding angle piece, a stud 41 and a nut 42, the sliding angle piece is composed of a left sliding angle piece 45 and a right sliding angle piece 46, the left sliding angle piece 45 is arranged in a rail shape, the left sliding angle piece 45 is arranged in a convex shape, the right sliding angle piece 46 is arranged in parallel (a parallel arrangement mode is not shown in fig. 4), the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the fourth sliding rail 32 can slide in parallel up and down in a matching manner, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the fourth sliding rail 32 are arranged in a concave shape on the left side in a matching manner, the right side is parallel to the matching up and down parallel sliding design purpose, in use, the left sliding angle piece 45 and the right sliding angle piece 46 are arranged in one or more threaded holes, the first sliding rail 21, the second sliding rail 22, the third sliding rail 31 and the fourth sliding rail 32 can slide in a matching manner on the left sliding angle piece 45 and the right sliding rail 46 in a threaded through the stud 41 and the threaded through holes of the left sliding angle piece 45 and the right sliding angle piece 46, the first sliding rail 21 and the right sliding rail 45 are clamped on the left sliding rail 21 and the right sliding rail 45 and the right sliding rail 46 in a fixed manner on the upper side and the right sliding rail 46 in the same sliding manner, and the right sliding rail 46 and the other sliding rail is fixed in the sliding manner, and the sliding manner is matched with the upper side and the right sliding rail 46, and the other sliding rail is parallel to the upper side and the right side and the sliding rail is fixed on the right side and the left sliding rail and the right side.

When the device is used, the proximal end of a joint or a detected joint structure is placed in the cylindrical clamp 52 of the upper fixing device 5, the proximal end of the fixed detected joint structure is fixed in the hollow cavity of the cylindrical clamp 52 of the upper fixing device 5 through the penetrating type fixing needle, the distal end of the joint or the detected joint structure is placed in the cylindrical clamp 52 of the lower fixing device 5, the proximal end of the fixed detected joint structure is fixed in the hollow cavity of the cylindrical clamp 52 of the lower fixing device 5 through the penetrating type fixing needle, then the limiting fixed column 8 of the upper sliding structure 6 is taken out, the upper sliding structure 4 slides up and down in a transverse parallel manner on the first sliding track 21 and the second sliding track 22 after the limiting fixed column 8 of the upper sliding structure 6 is taken out, the upper sliding structure 6 slides down through the proximal end joint or the detected joint structure of the cylindrical clamp 52 of the upper fixing device 5 and the distal end joint or the detected joint structure of the cylindrical clamp 52 of the lower fixing device 5 under the condition without a stop, the fixing device vertically moves, and the controllable load is applied to the fixing device 5 support column 51, and the load is applied to the fixing device is used for testing the joint or the detected structure.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. The utility model provides a joint structure dynamics testing arrangement, its characterized in that, testing arrangement comprises support post (1), first horizontal support (2), second horizontal support (3), slider (4), fixing device (5) and spacing fixed column (8), first horizontal support (2) can dismantle with second horizontal support (3) and fix on support post (1), can dismantle on first horizontal support (2) and set up first slip track (21) and second slip track (22), can dismantle on second horizontal support (3) and set up third slip track (31) and fourth slip track (32), go up slip structure (6) and can slide from top to bottom at first slip track (21) and second slip track (22) through slider (4), lower slip structure (7) can slide at third slip track (31) and fourth slip track (32) from top to bottom through slider (4), go up slip structure (6) and lower slip structure (7) and pass through spacing fixed column (8) and design symmetry about with the joint and test the purpose.

2. The joint structure dynamics testing apparatus according to claim 1, wherein the upper sliding structure (6) slides up and down in parallel in the lateral direction on the first sliding rail (21) and the second sliding rail (22) through the sliding device (4), and the lower sliding structure (7) slides up and down in parallel in the lateral direction on the third sliding rail (31) and the fourth sliding rail (32) through the sliding device (4).

3. The joint structure dynamics testing device according to claim 2, wherein the upper sliding structure (6) is provided with a limiting fixing column (8) through a first sliding rail (21) and a second sliding rail (22) for limiting the upper sliding structure (6) to slide up and down or stopping the upper sliding structure (6) from falling down; the lower sliding structure (7) is provided with a limiting fixed column (8) through a third sliding rail (31) and a fourth sliding rail (32), and is used for limiting the lower sliding structure (7) in an up-down sliding way or stopping the lower sliding structure (7) from falling down.

4. The joint structure dynamics testing apparatus according to claim 1, wherein the number of the fixing devices (5) is more than two, and the upper fixing device and the lower fixing device are longitudinally symmetrical.

5. The joint structure dynamics testing device according to claim 4, wherein the fixing device (5) is composed of a pillar (51) and a cylindrical clamp (52), the fixing device is detachably fixed on the upper sliding structure (6) and the lower sliding structure (7) through the pillar (51), the upper fixing device is vertically arranged downwards, and the lower fixing device is vertically arranged upwards, so that the upper fixing device and the lower fixing device are designed symmetrically longitudinally.

6. The joint structure dynamics testing apparatus according to claim 5, wherein through holes (53) are formed around the cylindrical fixture (52), and the through holes (53) are used for fixing the proximal end of the joint structure to be tested on the hollow cavity inside the cylindrical fixture (52) through the penetrating type fixing needle, so as to ensure the vertical design of the upper and lower symmetry of the joint.

7. The joint structure dynamics testing apparatus according to any one of claims 1-5, wherein the fixing device (5) is respectively disposed on the upper sliding structure (6) and the lower sliding structure (7), and through holes are disposed on the upper sliding structure (6) and the lower sliding structure (7) for adjusting the position of the fixing device (5), and the fixing device (5) can be adjusted by moving up and down and left and right on the upper sliding structure (6) and the lower sliding structure (7).

8. The device according to any one of claims 1 to 5, wherein the sliding means (4) is arranged to slide up and down in parallel in a matching arrangement with the sliding track.

9. The joint structure dynamics testing apparatus according to any one of claims 1-5, wherein the sliding apparatus (4) is composed of a sliding portion (43), a stud (41) and a nut (42), the sliding portion (43) is arranged to be in a wrapping track shape, two inward protrusions on two sides of the sliding portion (43) are matched with the sliding track, and two inward recesses on two sides are matched with the sliding track to prevent derailment, so that the upper sliding structure (6) and the lower sliding structure (7) slide up and down in parallel.

10. The joint structure dynamics testing apparatus according to any one of claims 1-5, characterized in that the sliding apparatus (4) is composed of a sliding angle member, a stud (41) and a nut (42), the sliding angle member is composed of a left sliding angle member (45) and a right sliding angle member (46), the left sliding angle member (45) and the right sliding angle member (46) are arranged in a rail shape, the left sliding angle member (45) and the right sliding angle member (46) are arranged in a convex shape, the concave-convex fit clamps the left sliding angle member (45) and the right sliding angle member (46) in the middle of the sliding rail in a parallel sliding manner or the left sliding angle member (45) is arranged in a convex shape, the right sliding angle member (46) is arranged in a parallel sliding manner by matching with the sliding rail in a left side in a concave shape, and the right side is clamped in the middle of the sliding rail in a parallel manner.

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