New energy automobile gearshift mechanism test platform

Abstract

The invention specifically relates to a new energy automobile gearshift mechanism test platform, and belongs to the technical field of automobile gearshift mechanism test. The test platform comprises a driving assembly, and the driving assembly comprises a seat body, a plurality of chain wheels, a chain, a plurality of moving parts, a plurality of supporting parts, a locking part and a force transmission part. The chain wheels are rotatably arranged on the seat body at intervals in the first direction, the chain wheels are meshed with the chain, the chain comprises a plurality of chain links, the moving parts correspond to the chain links, the moving parts are adjustably connected to the chain links in the second direction, the supporting parts correspond to the moving parts, and the supporting parts are rotatably connected to the moving parts. The rotating axis of the supporting part is perpendicular to the second direction. In the second direction, the force transmission part is movably connected to the base, one side of the force transmission part is connected to the shifting rod, the other side of the force transmission part is rotationally provided with a guide wheel, and an elastic piece is arranged between the force transmission part and the base. The testing platform can be used for carrying out fatigue testing on the gear shifting mechanism and can also be used for carrying out function testing on the gear shifting mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile shift mechanism testing, and in particular relates to a new energy automobile shift mechanism testing platform. Background Art

[0002] Usually, the shift mechanism of a car includes a control component and an execution component. The control component is used to control the gear position of the car, and the execution component is used to perform the gear shifting operation. The control component usually includes a lever, and the driver controls the gear switching of the car by turning the lever. As a commonly used component in a car, whether the lever can work reliably is an important factor affecting the driving safety of the car. Especially for new energy vehicles, the working reliability of the lever is more important. This is because, compared with traditional fuel vehicles, the lever of new energy vehicles must not only consider mechanical durability, but also must take into account electrical safety performance. In summary, how to test the shift mechanism of new energy vehicles is a major problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the present invention is to provide a new energy vehicle shift mechanism test platform, through which a shift lever of the shift mechanism can be tested.

[0004] To achieve the above-mentioned invention object, the technical solution adopted by the present invention is: the embodiment of the present application provides a test platform for a shift mechanism of a new energy vehicle, the shift mechanism includes a shifting rod, the test platform includes a driving assembly, the driving assembly includes a seat body, a plurality of sprockets, a chain, a plurality of moving parts, a plurality of supporting parts, a locking component and a force transmission part. A plurality of sprockets are arranged on the seat body in an interval rotation along a first direction, the chain is wound around the outer periphery of the plurality of sprockets, the sprockets and the chain are meshed, and the chain includes a plurality of chain links that are sequentially connected in rotation. A plurality of moving parts are arranged corresponding to the chain links, and the moving parts are positionally adjustable along the second direction. The first direction is perpendicular to the second direction. A plurality of supporting parts are arranged corresponding to the moving parts, and the supporting parts are rotationally connected to the moving parts, and the rotation axis of the supporting parts is perpendicular to the second direction. The locking component is used to lock the supporting part, and the force transmission part is movably connected to the seat body along the second direction, one side of the force transmission part is connected to the shifting rod, and the other side is rotationally provided with a guide wheel, and an elastic member is arranged between the force transmission part and the seat body, and the elastic member is used to provide an elastic force that makes the guide wheel abut against the support part.

[0005] In some embodiments, the chain link is provided with a limiting portion, the limiting portion is provided with a first through hole, the moving portion is passed through the first through hole, the moving portion is threadedly connected to two threaded portions, and the limiting portion is provided between the two threaded portions.

[0006] In some embodiments, the moving part is provided with a second through hole, the axis of the second through hole is perpendicular to the second direction, and the driving component further comprises a flexible ring body, which is sequentially passed through the second through holes of each moving part.

[0007] In some embodiments, the movable portion is provided with a recessed portion, a protruding portion is provided inside the recessed portion, the locking component includes a sleeve and two inserted portions, the two inserted portions are inserted between the inner peripheral wall of the recessed portion and the outer peripheral wall of the protruding portion, the two inserted portions are arranged opposite to each other along the radial direction of the recessed portion, and the two inserted portions form a frustum-shaped structure on the side away from the recessed portion, the sleeve is sleeved on the outer peripheral walls of the two inserted portions, the sleeve is threadedly connected to the two inserted portions, and the support portion is arranged between the two inserted portions.

[0008] In some embodiments, the support portion is bent, and includes a first segment and a second segment arranged in parallel, the first segment is provided with a first bend, the second segment is provided with a second bend, the first bend and the second bend are arranged between the two inserted portions, and the first bend is against the second bend.

[0009] In some embodiments, the support portion further includes a third segment, the third segment is configured to be folded in the middle, and the two ends of the third segment are gradually separated, and the two ends of the third segment are respectively connected to the first segment and the second segment.

[0010] In some embodiments, the first segment is used for the guide wheel to abut against, and two thickened areas are provided on the side of the first segment away from the second segment, and the two thickened areas are provided on both sides of the first curved portion, and the inserted portion cooperating with the first segment is provided with a filling portion, and the filling portion is provided between the two thickened areas.

[0011] In some embodiments, the driving assembly further includes a fitting portion, which is passed through the chain and abuts against an inner circumferential wall of the chain.

[0012] In some embodiments, the side where the force transmission part is connected to the lever includes two connecting arms arranged opposite to each other, the two connecting arms are provided with third through holes, and the force transmission part is provided with a closing part, which passes through the third through holes of the two connecting arms.

[0013] In some embodiments, a fixing assembly is also included, the fixing assembly includes a ball seat, a ball head and a fixing component. The ball seat is provided with a spherical cavity, the ball head is accommodated in the spherical cavity, the fixing component is connected to the ball head, and the shift mechanism is connected to the fixing component.

[0014] The present invention has the following beneficial effects: 1. The test platform of the embodiment of the present application can perform fatigue test on the shift mechanism, that is, by continuously moving the lever back and forth, the fatigue life of the lever can be tested. The shift mechanism can also be tested for function, that is, by moving the lever, it is determined whether the corresponding function of the shift mechanism is correct when the lever is in different positions.

[0015] 2. Multiple supporting parts can be combined to form a guide rail. In this way, when the sprocket rotates, the guide wheel passes through each supporting part in turn. Under the action of the guide wheel, the force transmission part can move relative to the seat body according to the undulation of the guide rail. Furthermore, the shift lever moves correspondingly under the action of the force transmission part. The position of the supporting part relative to the chain link and the fixing angle of the supporting part can be adjusted, so that the shape of the guide rail can be adjusted as needed. Furthermore, the moving path of the force transmission part relative to the seat body can be adjusted to meet different test requirements. Brief Description of the Drawings

[0016] Figure 1 is a front structural schematic diagram of the test platform for the shift mechanism of a new energy vehicle according to the present invention; Figure 2 of Figure 1 Enlarged view of part A; Figure 3 is a rear structural schematic diagram of the test platform for the shift mechanism of a new energy vehicle according to the present invention; Figure 4 is a schematic diagram of the cooperation between the moving part and the connecting part of the present invention; Figure 5 is a schematic diagram of the cooperation between the moving part and the connecting part (removing the sleeve) of the present invention; Figure 6 is Figure 5 Enlarged view of part B; Figure 7 is a schematic diagram of the cooperation between the moving part and the connecting part (removing the supporting part) of the present invention; Figure 8 is Figure 7 Enlarged view of part C; Figure 9 is a sectional structural schematic diagram of the moving part of the present invention.

[0017] Reference Numerals in the Drawings: 1 - driving assembly, 11 - seat body, 12 - sprocket, 13 - chain, 14 - mating part, 15 - moving part, 16 - connecting part, 17 - supporting part, 18 - flexible ring body, 19 - force transmission part, 110 - elastic member, 111 - connecting arm, 112 - closing part, 113 - guide wheel, 114 - chain link, 115 - limiting part, 116 - threaded part, 117 - first segment, 118 - second segment, 119 - third segment, 120 - sleeve, 121 - thickened area, 122 - first bending part, 123 - second bending part, 124 - inserting part, 125 - protruding part, 126 - filling part, 2 - fixing assembly, 21 - ball seat, 22 - ball head, 23 - fixing member, 3 - shift mechanism, 31 - shift lever. Detailed Description of the Embodiments

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, 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 should not be construed as a limitation of the present invention.

[0020] See Figure 1 、 Figure 2 and Figure 3 As shown in, an embodiment of the present application provides a test platform for a shift mechanism of a new energy vehicle. The shift mechanism 3 includes a shift lever 31. The test platform includes a driving assembly 1, and the driving assembly 1 includes a seat body 11, a plurality of sprockets 12, a chain 13, a plurality of moving parts 15, a plurality of supporting parts 17, a locking member and a force transmission part 19. The plurality of sprockets 12 are rotatably arranged at intervals along a first direction on the seat body 11. The chain 13 is wound around the outer periphery of the plurality of sprockets 12, and the sprockets 12 and the chain 13 are engaged. The chain 13 includes a plurality of chain links 114 that are sequentially rotatably connected. The plurality of moving parts 15 are arranged corresponding to the chain links 114, and the moving parts 15 are connected to the chain links 114 in a position-adjustable manner along a second direction. The first direction is perpendicular to the second direction. The plurality of supporting parts 17 are arranged corresponding to the moving parts 15, and the supporting parts 17 are rotatably connected to the moving parts 15. The rotation axis of the supporting parts 17 is perpendicular to the second direction. The locking member is used to lock the supporting parts 17. Along the second direction, the force transmission part 19 is movably connected to the seat body 11. One side of the force transmission part 19 is connected to the shift lever 31, and a guide wheel 113 is rotatably arranged on the other side. An elastic member 110 is arranged between the force transmission part 19 and the seat body 11, and the elastic member 110 is used to provide an elastic force for making the guide wheel 113 abut against the supporting parts 17.

[0021] The first direction may be Figure 1 the direction shown by the X-axis in Figure 1 and the second direction may be

[0022] the direction shown by the Y-axis in.

[0023] The driving structure of the sprocket 12 can be selected from existing structures and will not be elaborated here.

[0024] The moving part 15 is connected to the link 114 in a position-adjustable manner along the second direction, so that the position of the moving part 15 relative to the link 114 in the second direction can be adjusted, and further the position of the supporting part 17 relative to the link 114 in the second direction can be adjusted.

[0025] Under the action of the locking member, the supporting part 17 can have two states. One is the locked state, in which the supporting part 17 cannot rotate relative to the moving part 15. The other is the unlocked state, in which the supporting part 17 can rotate relative to the moving part 15.

[0026] The moving part 15 corresponding to the link 114 means that the number of the moving part 15 and the link 114 is the same, and they correspond to each other one by one.

[0027] The supporting part 17 corresponds to the moving part 15, and the number of the supporting part 17 and the moving part 15 is the same, and they correspond to each other one by one.

[0028] In the embodiment of the present application, the sprockets 12 can be set in two groups, with two sprockets 12 in each group. The two groups of sprockets 12 are arranged along the second direction, and the sprockets 12 in each group are arranged along the first direction. The corresponding chains 13 can be correspondingly set to two, and the two chains 13 are arranged along the second direction. This can improve the stability of the movement of the chain 13. At this time, the moving part 15 corresponding to the link 114 one by one means that the moving part 15 corresponds to the link 114 of one of the chains 13 one by one.

[0029] The link 114 between the two opposite chains 13 can be connected by the connecting part 16, and the moving part 15 can be movably connected to the connecting part 16.

[0030] Further, by providing a guide hole in the link 114 or the moving part 15 and passing the moving part 15 through the guide hole, the moving part 15 can move relative to the link 114.

[0031] The force transmission part 19 is connected to the lever 31, so that the force transmission part 19 can toggle the lever 31.

[0032] Which side of the supporting part 17 the guide wheel 113 specifically abuts against can be set as needed. For example, the shifting mechanism 3 and the supporting part 17 can be respectively arranged on both sides of the force transmission part 19. At this time, the guide wheel 113 can abut against the side of the supporting part 17 facing away from the shifting mechanism 3. At this time, the elastic member 110 applies an elastic force to the guide wheel 113 to keep it abutting against the side of the supporting part 17 facing away from the shifting mechanism 3.

[0033] The elastic member 110 can be a spring.

[0034] Multiple support parts 17 can be combined to form a guide rail, so that when the sprocket 12 rotates, the guide wheel 113 passes through each support part 17 in turn, and the force transmission part 19 can move relative to the seat body 11 according to the ups and downs of the guide rail under the action of the guide wheel 113, and then the lever 31 moves accordingly under the action of the force transmission part 19.

[0035] The position of the support portion 17 relative to the chain link 114 and the fixing angle of the support portion 17 can be adjusted, so that the shape of the guide rail can be adjusted as needed, and the moving path of the force transmission portion 19 relative to the seat body 11 can be adjusted.

[0036] The test platform of the embodiment of the present application can perform fatigue test on the shift mechanism 3, that is, by continuously reciprocating the lever 31, the fatigue life of the lever 31 can be tested. The shift mechanism 3 can also be functionally tested, that is, by moving the lever 31, it is determined whether the corresponding function of the shift mechanism 3 is correct when the lever 31 is in different positions.

[0037] See also Figure 2 In some embodiments, the link 114 is provided with a limiting portion 115 , the limiting portion 115 is provided with a first through hole, the moving portion 15 is passed through the first through hole, the moving portion 15 is threadedly connected to two threaded portions 116 , and the limiting portion 115 is arranged between the two threaded portions 116 .

[0038] The two threaded portions 116 cooperate to adjust the position of the moving portion 15 relative to the chain link 114. Specifically, by rotating the two threaded portions 116, the two threaded portions 116 can clamp the limiting portion 115, and the position of the moving portion 15 relative to the chain link 114 is fixed. Conversely, by rotating one of the threaded portions 116, the two threaded portions 116 are separated, and then the moving portion 15 can move relative to the chain link 114, and finally the other threaded portion 116 is rotated, so that the two threaded portions 116 clamp the limiting portion 115 again, and the moving portion 15 is fixed again.

[0039] See also Figure 1 and Figure 2 In some embodiments, the movable portion 15 is provided with a second through hole, the axis of the second through hole is perpendicular to the second direction, and the driving component 1 further includes a flexible ring body 18, which is sequentially passed through the second through holes of each movable portion 15.

[0040] The flexible ring body 18 is made of elastic material.

[0041] The flexible ring body 18 is successively passed through each second through-hole of the moving part 15. On the one hand, it can improve the position adjustment efficiency of multiple moving parts 15. For example, there are multiple intermediate links between link A and link B. When adjusting the position of the moving part 15 of link A, in order to enable the docking between the supporting parts 17, starting from the intermediate link close to link A, the positions of the moving parts 15 of each intermediate link may need to be adjusted one by one, which makes the adjustment workload relatively large. At this time, the moving part 15 of link B can be kept in a locked state, and the moving parts 15 of link A and each intermediate link are unlocked. When moving the moving part 15 of link A, the moving parts 15 of other intermediate links can move synchronously, and the moving distance of the moving part 15 of the intermediate link closer to link B is smaller. After the adjustment is completed, first lock the moving part 15 of link A, and then lock the moving parts 15 of each intermediate link in sequence, which can improve the position adjustment efficiency of the moving part 15. On the other hand, the flexible ring body 18 is made of an elastic material. When the position of the moving part 15 is adjusted relative to the link 114, the flexible ring body 18 can generate an axial acting force on the threaded part 116, which can play a role in preventing loosening of the threaded part 116, thereby improving the fixing reliability of the moving part 15. On the further hand, the flexible ring body 18 can generate an acting force on the chain 13 towards the sprocket 12, which can improve the stability of the movement of the chain 13 and reduce the risk of the chain 13 disengaging from the sprocket 12.

[0042] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , in some embodiments, the moving part 15 is provided with a recess, and a protruding part 125 is arranged in the recess. The locking component includes a sleeve body 120 and two inserting parts 124. The two inserting parts 124 are inserted between the inner peripheral wall of the recess and the outer peripheral wall of the protruding part 125. The two inserting parts 124 are arranged opposite to each other along the radial direction of the recess. The side of the two inserting parts 124 away from the recess forms a frustum-shaped structure. The sleeve body 120 is sleeved on the outer peripheral walls of the two inserting parts 124, and the sleeve body 120 is threadedly connected with the two inserting parts 124. The supporting part 17 is arranged between the two inserting parts 124.

[0043] There is a gap between the protruding part 125 and the recess, so that an annular groove can be formed between the outer wall of the protruding part 125 and the inner wall of the recess.

[0044] The two inserting parts 124 are inserted between the inner peripheral wall of the recess and the outer peripheral wall of the protruding part 125, so that the two inserting parts 124 can move in the annular groove, and thus the two inserting parts 124 can rotate around the recess.

[0045] The parts of the two inserting portions 124 inserted into the annular groove body may be an arc-shaped plate structure.

[0046] The support portion 17 is disposed between the two insertion portions 124, so that the support portion 17 can support the two insertion portions 124, thereby enabling the support portion 17 and the two insertion portions 124 to rotate more smoothly around the protrusion 125. The support portion 17 can also move laterally between the two insertion portions 124 to adjust the distance between two adjacent support portions 17.

[0047] After the position of the support portion 17 is adjusted, the sleeve 120 is rotated. Since the two inserting portions 124 form a frustum-shaped structure on the side away from the recessed portion, as the sleeve 120 gradually approaches the protruding portion 125, the two inserting portions 124 close together, clamping the protruding portion 125 and the support portion 17 at the same time, so that the support portion 17 can be locked. Furthermore, this arrangement also has the advantage of facilitating the removal of the support portion 17.

[0048] See also Figure 5 and Figure 6 In some embodiments, the support portion 17 is bent, and the support portion 17 includes a first segment 117 and a second segment 118 arranged in parallel. The first segment 117 is provided with a first bent portion 122, and the second segment 118 is provided with a second bent portion 123. The first bent portion 122 and the second bent portion 123 are arranged between two inserted portions 124, and the first bent portion 122 is against the second bent portion 123.

[0049] The support portion 17 may be made of an elastic material. Since the torque required to move the lever 31 is relatively small, the support portion 17 is made of an elastic material to meet the test requirements.

[0050] The support portion 17 is in a bent shape, that is, the middle portion of the support portion 17 is folded in half, so that the support portion 17 can form a first segment 117 and a second segment 118 , and one side of the support portion 17 forms an opening.

[0051] The first curved portion 122 is in a state where the convex side faces the second curved portion 123 , and the second curved portion 123 is in a state where the convex side faces the first curved portion 122 .

[0052] When the two insertion parts 124 are closed, the insertion parts 124 exert pressure on the first bending part 122 and the second bending part 123. At this time, the bending amplitudes of the first bending part 122 and the second bending part 123 decrease. With such a setting, on the one hand, the overall length of the support part 17 can be increased, so that two adjacent support parts 17 can be butted more closely, reducing the risk of the guide wheel 113 leaking out from the gap between the two support parts 17. On the other hand, when the first segment 117 and the second segment 118 are closed, the bent end of one of the two adjacent support parts 17 can enter the opening of the other support part 17 and be clamped by the first segment 117 and the second segment 118 of this support part 17, enabling the two adjacent support parts 17 to cooperate closely. On the further hand, when it is necessary to adjust the support part 17 of a certain moving part 15, when the rotating sleeve body 120 is rotated to unlock the two insertion parts 124, at this time, the first bending part 122 and the second bending part 123 are reset, and the overall length of the support part 17 decreases, reducing the risk of interference with the support part 17 of the adjacent moving part 15. On yet another hand, when the link 114 moves to the sprocket 12, the opening enables the support part 17 originally accommodated therein to move out, so that the support part 17 does not hinder the movement of the chain 13.

[0053] Furthermore, in the embodiments of the present application, the diameter of the guide wheel 113 can be reasonably set to reduce the risk of the guide wheel 113 leaking out from the gap of the support part 17. And the stability of the guide wheel 113 moving along the guide rail is improved.

[0054] See Figure 4 , in some embodiments, the support part 17 further includes a third segment 119, and the third segment 119 is configured to be bent in half in the middle, the two ends of the third segment 119 are gradually separated, and the two ends of the third segment 119 are respectively connected to the first segment 117 and the second segment 118.

[0055] Under the action of the third segment 119, the support part 17 can form a bent structure.

[0056] The middle part of the third segment 119 is located at one end of the support part 17, and the opening formed by the first segment 117 and the second segment 118 is located at the other end of the support part 17.

[0057] Since the two ends of the third segment 119 are gradually separated, the distance between the first segment 117 and the second segment 118 can gradually increase from the side close to the third segment 119 to the side far from the third segment 119, and the formed opening is larger, facilitating the insertion of another support part 17 therein. At the same time, under the action of the third segment 119, when the first segment 117 and the second segment 118 are closed, the middle part of the third segment 119 will not undergo large deformation, facilitating the insertion of this support part 17 into the opening of another support part 17.

[0058] See Figure 6 Figure 6 , in some embodiments, the first segment 117 is for the guide wheel 113 to abut against. On the side of the first segment 117 away from the second segment 118, there are two thickened areas 121. The two thickened areas 121 are arranged on both sides of the first bending part 122. A filling part 126 is arranged on the insertion part 124 that cooperates with the first segment 117, and the filling part 126 is arranged between the two thickened areas 121.

[0059] If the thickened areas 121 are not provided, since the support part 17 is partially arranged between the two insertion parts 124, when the guide wheel 113 passes through the insertion part 124, it is easy to produce jumps.

[0060] By providing the thickened areas 121, on the one hand, the support effect of the support part 17 on the guide wheel 113 is improved. On the other hand, the filling part 126 and the two thickened areas 121 cooperate to reduce the risk of jumps when the guide wheel 113 passes through the insertion part 124.

[0061] See Figure 1 Figure 1 , in some embodiments, the drive assembly 1 further includes a cooperating part 14. The cooperating part 14 passes through the chain 13, and the cooperating part 14 abuts against the inner peripheral wall of the chain 13.

[0062] The cooperating part 14 is used to support the chain 13, so that when the chain 13 passes through the cooperating part 14, the chain 13 can translate stably, thereby improving the stability of driving the transmission part 19 to move.

[0063] See Figure 1 and Figure 3 Figure 3 , in some embodiments, the side of the transmission part 19 connected to the shift lever 31 includes two oppositely arranged connecting arms 111. The two connecting arms 111 are provided with third through holes, and the transmission part 19 is provided with a closing part 112. The closing part 112 passes through the third through holes of the two connecting arms 111.

[0064] When the transmission part 19 cooperates with the shift lever 31, the shift lever 31 is arranged between the two connecting arms 111.

[0065] The closing part 112 prevents the shift lever 31 from disengaging between the two connecting arms 111.

[0066] Under the action of the third through hole, the closing part 112 can be detachably connected to the connecting arm 111.

[0067] The shift mechanism 3 may include a base. Commonly, the shift lever 31 can rotate relative to the base or can translate relative to the base.

[0068] The connecting arm 111 and the enclosing part 112 form a frame structure. The shifting lever 31 is arranged within the frame structure, and there is a gap between the shifting lever 31 and the inner wall of the frame structure, enabling the force transmission part 19 to be used for testing the above two types of shifting levers 31. Further, a buffer pad can be sleeved on the outer wall of the shifting lever 31 to achieve a clearance-free fit between the shifting lever 31 and the frame structure.

[0069] See Figure 1 and Figure 3 , in some embodiments, it further includes a fixing component 2. The fixing component 2 includes a ball seat 21, a ball head 22, and a fixing part 23. The ball seat 21 is provided with a spherical cavity, the ball head 22 is received in the spherical cavity, the fixing part 23 is connected to the ball head 22, and the shifting mechanism 3 is connected to the fixing part 23.

[0070] The ball head 22 is received in the spherical cavity, enabling the ball head 22 to rotate relative to the ball seat 21.

[0071] The fixing part 23 is used to connect the shifting mechanism 3 to the ball head 22, enabling the installation angle of the shifting mechanism 3 to be adjusted as required.

[0072] The ball seat 21 can be provided with a limiting structure for unlocking or locking the ball head 22. Before testing, unlock the ball head 22 so that the shifting mechanism 3 can be installed in a suitable position. During the testing process, the ball head 22 can be locked so that the position of the shifting mechanism 3 can be fixed.

[0073] The above embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, variations, modifications, and substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A test platform for a shift mechanism of a new energy vehicle, the shift mechanism (3) includes a shift lever (31), characterized in that, Comprising a driving component (1), the driving component (1) includes: A base body (11); A plurality of sprockets (12), rotatably arranged at intervals along a first direction on the base body (11); A chain (13), wound around the outer periphery of the plurality of sprockets (12), the sprockets (12) and the chain (13) being engaged, the chain (13) including a plurality of chain links (114) sequentially rotatably connected; A plurality of moving parts (15), arranged corresponding to the chain links (114), the moving parts (15) being connected to the chain links (114) in a position-adjustable manner along a second direction, the first direction being perpendicular to the second direction; A plurality of supporting parts (17), arranged corresponding to the moving parts (15), the supporting parts (17) being rotatably connected to the moving parts (15), the rotation axis of the supporting parts (17) being perpendicular to the second direction; A locking member for locking the supporting part (17); A force transmission part (19), along the second direction, the force transmission part (19) being movably connected to the base body (11), one side of the force transmission part (19) being connected to the lever (31), and a guide wheel (113) being rotatably arranged on the other side, an elastic member (110) being arranged between the force transmission part (19) and the base body (11), the elastic member (110) being used to provide an elastic force for making the guide wheel (113) abut against the supporting part (17).

2. The test platform for a shift mechanism of a new energy vehicle according to claim 1, characterized in that, The chain link (114) is provided with a limiting part (115), the limiting part (115) is provided with a first through hole, the moving part (15) passes through the first through hole, the moving part (15) is threadedly connected with two threaded parts (116), and the limiting part (115) is arranged between the two threaded parts (116).

3. The test platform for a shift mechanism of a new energy vehicle according to claim 2, characterized in that, The moving part (15) is provided with a second through hole, the axis of the second through hole is perpendicular to the second direction, and the driving component (1) further includes a flexible ring body (18), the flexible ring body (18) sequentially passing through the second through holes of the respective moving parts (15).

4. The test platform for a shift mechanism of a new energy vehicle according to claim 1, characterized in that, The moving part (15) is provided with a recess, a protruding part (125) is arranged in the recess, the locking member includes a sleeve body (120) and two inserting parts (124), the two inserting parts (124) are inserted between the inner peripheral wall of the recess and the outer peripheral wall of the protruding part (125), the two inserting parts (124) are arranged opposite to each other along the radial direction of the recess, one side of the two inserting parts (124) away from the recess forms a frustum-shaped structure, the sleeve body (120) is sleeved on the outer peripheral walls of the two inserting parts (124), the sleeve body (120) is threadedly connected with the two inserting parts (124), and the supporting part (17) is arranged between the two inserting parts (124).

5. The test platform for a shift mechanism of a new energy vehicle according to claim 4, characterized in that, The support part (17) is bent, and the support part (17) includes a first segment (117) and a second segment (118) arranged in parallel. The first segment (117) is provided with a first bending part (122), and the second segment (118) is provided with a second bending part (123). The first bending part (122) and the second bending part (123) are arranged between the two insertion parts (124), and the first bending part (122) abuts against the second bending part (123).

6. The test platform for a shift mechanism of a new energy vehicle according to claim 5, characterized in that, The support part (17) further includes a third segment (119). The third segment (119) is configured to be bent in half in the middle, and the two ends of the third segment (119) are gradually separated. The two ends of the third segment (119) are respectively connected to the first segment (117) and the second segment (118).

7. The test platform for a shift mechanism of a new energy vehicle according to claim 5, characterized in that, The first segment (117) is for the guide wheel (113) to abut against. Two thickening areas (121) are arranged on the side of the first segment (117) away from the second segment (118). The two thickening areas (121) are arranged on both sides of the first bending part (122). The insertion part (124) cooperating with the first segment (117) is provided with a filling part (126), and the filling part (126) is arranged between the two thickening areas (121).

8. The test platform for a shift mechanism of a new energy vehicle according to claim 1, characterized in that, The driving assembly (1) further includes a cooperating part (14). The cooperating part (14) penetrates through the chain (13), and the cooperating part (14) abuts against the inner peripheral wall of the chain (13).

9. The test platform for a shift mechanism of a new energy vehicle according to claim 1, characterized in that, One side of the force transmission part (19) connected to the shift lever (31) includes two connecting arms (111) arranged oppositely. The two connecting arms (111) are provided with third through holes. The force transmission part (19) is provided with a closing part (112), and the closing part (112) penetrates through the third through holes of the two connecting arms (111).

10. The test platform for a shift mechanism of a new energy vehicle according to claim 1, characterized in that, It further includes a fixing assembly (2), and the fixing assembly (2) includes: A ball seat (21) provided with a spherical cavity; A ball head (22) accommodated in the spherical cavity; A fixing member (23) connected to the ball head (22), and the shifting mechanism (3) is connected to the fixing member (23).

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