Universal joint fork connecting assembly

Abstract

The utility model discloses a universal joint fork connecting assembly which comprises a shaft piece and a universal joint fork, the shaft piece is fixedly connected with the universal joint fork, the universal joint fork connecting assembly further comprises a connecting piece and a damping disc, the connecting piece is fixedly connected with the shaft piece, and the damping disc is connected with the connecting piece through a set of fasteners. And the damping disc is also connected with the universal joint fork through another group of fasteners. The connecting piece and the damping disc are arranged between the shaft piece and the universal joint fork, the damping disc is connected with the shaft piece through the connecting piece, the damping disc is further connected with the universal joint fork, vibration can be absorbed through the damping disc, vibration transmitted to a driver is reduced, connection stability is guaranteed, and comfort of the driver is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, in particular to a universal joint fork connection assembly. Background Art

[0002] The intermediate shaft connects the steering column and the steering gear. The intermediate shaft is used to transmit the torque and rotation angle during vehicle steering. Among them, the universal joint, that is, the universal joint, is a component that realizes the transmission of rotational power. Most of the existing intermediate shafts adopt rigid connections. The vibration generated during the transmission process is transmitted to the steering column, then to the steering wheel, and finally to the driver. This will not only cause driver fatigue, but also generate noise complaints from the driver due to the unstable connection between components (for example, the unstable connection between the universal joint fork and the shaft part).

[0003] Therefore, it is necessary to design a universal joint fork connection assembly that can absorb vibration, ensure stable connection and enhance the driver's comfort. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a universal joint fork connection assembly that can absorb vibration, ensure stable connection and enhance the driver's comfort.

[0005] The technical solution of the utility model provides a universal joint fork connection assembly, which includes a shaft part and a universal joint fork. The shaft part is fixedly connected to the universal joint fork. The universal joint fork connection assembly further includes a connecting piece and a shock-absorbing disc. The connecting piece is fixedly connected to the shaft part. The shock-absorbing disc is connected to the connecting piece through a set of fasteners, and the shock-absorbing disc is also connected to the universal joint fork through another set of fasteners.

[0006] Further, the connecting piece includes a main body and two ear parts. The main body is sleeved outside the shaft part and fixedly connected to the shaft part. The two ear parts are respectively located on opposite sides of the main body, and the ear parts are connected to the shock-absorbing disc through fasteners.

[0007] Further, the main body and the shaft part are fixedly connected through interference fit, or snap connection, or press riveting, or rib groove fit.

[0008] Further, the shaft part is an extended fork shaft, or a solid shaft, or a tubular shaft.

[0009] Further, a docking head is provided at the opposite end of the extended fork shaft connected to the shock-absorbing disc. A docking hole is opened in the docking head, and the cross-section of the docking hole is a single D-shaped interface, or a double D-shaped interface, or a V-shaped interface.

[0010] Further, a horizontal crack perpendicular to the axial direction is provided between the docking head and the main body of the extended fork shaft.

[0011] Further, the shock-absorbing disc includes a sleeve, a coil and a vulcanized rubber layer. The coil is wound between a plurality of the sleeves, the vulcanized rubber layer wraps the coil, and the sleeve is used for passing through the fastener.

[0012] Further, the universal joint fork connection assembly further includes an elastic member, and the elastic member is connected to the opposite side of the shock-absorbing disc where the universal joint fork is connected;

[0013] Under normal conditions, the elastic member does not contact the connecting member;

[0014] When the shock-absorbing disc fails, the elastic member contacts the connecting member.

[0015] Further, the elastic member includes a main board, an extension board and a contact board. The main board is sleeved outside the shaft member and is fixedly connected to the shock-absorbing disc and the universal joint fork. The contact board does not contact the connecting member under normal conditions, and when the shock-absorbing disc fails, the contact board contacts the connecting member.

[0016] Further, the extension board extends from both sides of the main board toward the ear part. The contact board is perpendicular to the extension board. The side of the contact board facing the ear part, the gap between the two contact boards is greater than the width of the ear part. When the shock-absorbing disc fails, the contact board contacts the ear part.

[0017] After adopting the above technical solutions, the following beneficial effects are achieved:

[0018] In the present utility model, a connecting member and a shock-absorbing disc are provided between the shaft member and the universal joint fork. The shock-absorbing disc is connected to the shaft member through the connecting member, and the shock-absorbing disc is also connected to the universal joint fork. The shock-absorbing disc can absorb vibrations and reduce the transmission to the driver, which not only ensures stable connection but also enhances the comfort of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Referring to the drawings, the disclosure of the present utility model will become more understandable. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present utility model. In the drawings:

[0020] Figure 1 is a perspective view of the universal joint fork connection assembly in an embodiment of the present utility model;

[0021] Figure 2 is an exploded view of the universal joint fork connection assembly in an embodiment of the present utility model;

[0022] Figure 3 is an exploded view of the shaft member and the universal joint fork in an embodiment of the present utility model;

[0023] Figure 4 Schematic diagram of the connection between the extension fork shaft and the connecting piece in an embodiment of the present utility model;

[0024] Figure 5 Perspective view of the connecting piece in an embodiment of the present utility model;

[0025] Figure 6 Cross-sectional view of the extension fork shaft in an embodiment of the present utility model;

[0026] Figure 7 Cross-sectional view of the extension fork shaft in another embodiment of the present utility model;

[0027] Figure 8 Cross-sectional view of the extension fork shaft in yet another embodiment of the present utility model;

[0028] Figure 9 Cross-sectional view of the extension fork shaft in still another embodiment of the present utility model;

[0029] Figure 10 Assembly diagram of the shock-absorbing disc and the elastic member in an embodiment of the present utility model;

[0030] Figure 11 Assembly diagram of the shock-absorbing disc, the elastic member and the connecting piece in an embodiment of the present utility model;

[0031] Figure 12 Partial sectional view of the shock-absorbing disc in an embodiment of the present utility model;

[0032] Figure 13 Schematic diagram of the shock-absorbing disc in an embodiment of the present utility model;

[0033] Figure 14 Schematic diagram of the elastic member in an embodiment of the present utility model.

[0034] Corresponding table of reference numerals:

[0035] Shaft member 1: docking head 11, horizontal crack 12;

[0036] Connecting piece 3: main body 31, ear portion 32;

[0037] Shock-absorbing disc 4: sleeve 41, coil 42, vulcanized rubber layer 43, through hole 44;

[0038] Elastic member 5: main board 51, extension board 52, contact board 53;

[0039] Universal joint fork 2, rivet 6. Detailed implementation manners

[0040] The following further describes the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0041] It is easy to understand that according to the technical solution of the present utility model, under the condition of not changing the essential spirit of the present utility model, there are various structural forms and implementation modes that can be mutually replaced by those of ordinary skill in the art. Therefore, the following specific embodiments and the accompanying drawings are only illustrative descriptions of the technical solution of the present utility model, and should not be regarded as the whole of the present utility model or as a limitation or restriction on the technical solution of the utility model.

[0042] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0043] In some embodiments of the present utility model, as Figures 1 - 2 shown, the universal joint fork connection assembly includes a shaft member 1 and a universal joint fork 2. The shaft member 1 is fixedly connected to the universal joint fork 2. The universal joint fork connection assembly further includes a connecting member 3 and a shock-absorbing disc 4. The connecting member 3 is fixedly connected to the shaft member 1. The shock-absorbing disc 4 is connected to the connecting member 3 by a set of fasteners, and the shock-absorbing disc 4 is also connected to the universal joint fork 2 by another set of fasteners.

[0044] As shown in FIGS. 1-2, specifically, the shock-absorbing disc 4 is connected to the connecting member 3 by a set of rivets 6, and the shock-absorbing disc 4 is connected to the universal joint fork 2 by another set of rivets 6.

[0045] Alternatively, in another implementation mode, the shock-absorbing disc 4 is connected to the connecting member 3 by a set of bolts, and the shock-absorbing disc 4 is connected to the universal joint fork 2 by another set of bolts.

[0046] Specifically, as Figure 3 shown, a thread is provided on the end of the shaft member 1, and splines are provided on the inner wall of the through hole of the universal joint fork 2. The shaft member 1 is fixedly connected to the universal joint fork 2, and the shaft member 1 can drive the universal joint fork 2 to rotate synchronously.

[0047] As Figure 4 shown, the shaft member 1 is also fixedly connected to the connecting member 3. Splines are provided on the outer wall of the shaft member 1, and splines are also provided on the inner wall of the connecting member 3. The connecting member 3 is sleeved on the shaft member 1 and the two are fixedly connected.

[0048] As Figure 1 shown, the shock-absorbing disc 4 includes two sets of rivets. One set of rivets connects the connecting member 3, and the other set of rivets connects the universal joint fork 2. The shock-absorbing disc 4 is located between the universal joint fork 2 and the connecting member 3 in the axial direction of the shaft member 1.

[0049] When the shaft member 1 is vibrated, the vibration is transmitted to the shock-absorbing disc 4 through the connecting member 3. The shock-absorbing disc 4 absorbs the vibration, so that the vibration is not or less transmitted to the universal joint fork 2, thereby reducing the vibration transmitted to the driver, and further increasing the comfort of the driver, while ensuring the connection stability between the shaft member 1 and the universal joint fork 2.

[0050] Further, as Figure 5 shown, the connecting member 3 includes a main body 31 and two ear portions 32. The main body 31 is sleeved outside the shaft member 1 and fixedly connected to the shaft member 1. The two ear portions 32 are respectively located on opposite sides of the main body 31, and the ear portions 32 are riveted to the shock-absorbing disc 4.

[0051] Among them, a spline groove is provided at the center of the main body 31, and the main body 31 and the shaft member 1 are fixedly connected by splines. Rivet holes are respectively provided on the two ear portions 32, and the rivet 6 passes through the shock-absorbing disc 4 and then is connected to the ear portion 32.

[0052] Optionally, the main body 31 and the shaft member 1 can be fixedly connected by interference fit, or snap connection, or press riveting, or rib groove fit, etc.

[0053] As a kind of interference fit, the teeth of the splines provided on the shaft member and the splines provided on its mating member are in tooth-to-tooth fit, which can also achieve the fixed connection between the shaft member and the mating member (for example, the connecting member or the universal joint fork).

[0054] Further, as Figure 2 shown, the shaft member 1 is an extended fork shaft. Optionally, the shaft member 1 can also be a solid shaft, or a tubular shaft.

[0055] Further, as Figure 4 shown, a docking head 11 is provided at the opposite end of the extended fork shaft connected to the shock-absorbing disc 4. A docking hole is provided in the docking head 11, and the docking hole is used for cooperation with the mating member. The cross-section of the docking hole is a single D-shaped interface, or a double D-shaped interface, or a V-shaped interface.

[0056] Specifically, as Figure 6 shown, the cross-section of the docking hole is a single D-shaped interface, which can prevent the misassembly situation where the mating member can still be assembled after rotating 180 degrees.

[0057] As Figure 7 described, the cross-section of the docking hole is a double D-shaped interface. Compared with the single D-shaped interface, the double D-shaped interface has a larger contact surface and a better clamping effect, but the mating member can still be assembled after rotating 180 degrees, so there is a risk of misassembly on the production line.

[0058] As Figure 8As shown, the cross-section of the docking hole is a V-shaped interface. The V-shaped interface has a good anti-misalignment effect. The mating part can only be installed in a specific direction. At the same time, after the bolt of the extension fork shaft is tightened, the docking head 11 is tightly held, and the holding force not lower than that of the double D-shaped interface can be provided.

[0059] As Figure 9 described, the cross-section of the docking hole can also be a spline interface, which can provide the optimal holding force, but is not easy to assemble.

[0060] Furthermore, as Figure 4 shown, a horizontal crack 12 perpendicular to the axial direction is provided between the docking head 11 and the main body of the extension fork shaft to reduce the structural strength, so that the extension fork shaft can be firmly clamped by bolts and nuts.

[0061] Furthermore, as Figures 12 - 13 shown, the shock-absorbing disc 4 includes a sleeve 41, a coil 42 and a vulcanized rubber layer 43. The coil 42 is wound between a plurality of sleeves 41, and the vulcanized rubber layer 43 wraps the coil 42. The coil 42 is embedded in the vulcanized rubber layer 43, and the sleeve 41 is used for inserting rivets.

[0062] Among them, the coil 42 can be made of steel wire or nylon wire. The coil 42 is wound between a plurality of sleeves 41 to increase the structural strength of the vulcanized rubber layer 43. The vulcanized rubber layer 43 is used for absorbing vibration. A through hole 44 is provided in the center of the vulcanized rubber layer 43, and the through hole 44 is used for passing through the shaft member 1.

[0063] In this embodiment, there are four sleeves 41, and the diagonal directions are in a group.

[0064] As Figures 10 - 11 shown, one group of sleeves 41 is used for inserting rivets 6 to connect with the elastic member 5, and the other group of sleeves 41 is used for inserting rivets 6 to connect with the connecting member 3.

[0065] Furthermore, as Figure 1 shown, the universal joint fork connection assembly further includes an elastic member 5. The elastic member 5 is connected to the opposite side of the shock-absorbing disc 4 where the universal joint fork 2 is connected;

[0066] Under normal conditions, the elastic member 5 does not contact the connecting member 3;

[0067] When the shock-absorbing disc 4 fails, the elastic member 5 contacts the connecting member 3.

[0068] Specifically, as Figure 11 shown, the elastic member 5 is installed on the same side of the connecting member 3. Under normal conditions, the elastic member 5 does not contact the connecting member 3, and the shock-absorbing disc 4 plays the role of absorbing vibration.

[0069] When the shock-absorbing disc 4 is deformed, damaged or in other failure conditions, the elastic member 5 comes into contact with the connecting member 3, and the vibrations at the shaft member 1 and the connecting member 3 are absorbed by the elastic member 5. As a redundant structure of the shock-absorbing disc, the elastic member not only plays a role in absorbing vibrations, but also ensures the connection stability between the shaft member and the universal joint fork.

[0070] Further, as Figure 14 shown, the elastic member 5 includes a main board 51, extension boards 52 and contact boards 53. The main board 51 is sleeved outside the shaft member 1 and is fixedly connected to the shock-absorbing disc 4 and the universal joint fork 2. The contact board 53 does not contact the connecting member 3 under normal conditions, and when the shock-absorbing disc 4 fails, the contact board 53 contacts the connecting member 3.

[0071] Specifically, the main board 51 is provided with a central hole and two rivet holes. The central hole is for the shaft member 1 to pass through, and the rivet holes are for the rivets to pass through during riveting connection.

[0072] As Figure 11 shown, the extension boards 52 extend from the main board 51. In this embodiment, there are four extension boards 52, which are respectively arranged in groups on both sides of the main board 51, that is, the four extension boards 52 are arranged in pairs in groups on both sides of the main board 51. Under normal circumstances, the two extension boards in a group of extension boards 52 are respectively located on both sides of the ear 32 of the connecting member 3.

[0073] Further, as Figure 14 shown, the extension boards 52 extend from the main board 51 towards both sides of the ear 32. The gap between the two contact boards 53 is greater than the width of the ear 32. When the shock-absorbing disc 4 fails, the contact board 53 contacts the ear 32.

[0074] Among them, the contact board 53 is perpendicular to the extension board 52. The side of the contact board 53 facing the ear 32 increases the contact area with the ear 32, which is convenient for better absorbing vibrations and improving the connection stability.

[0075] In the present utility model, a connecting member and a shock-absorbing disc are provided between the shaft member and the universal joint fork. The shock-absorbing disc is connected to the shaft member through the connecting member, and the shock-absorbing disc is also connected to the universal joint fork. The shock-absorbing disc can absorb vibrations and reduce the transmission to the driver, which not only ensures the connection stability but also enhances the comfort of the driver.

[0076] The above are only the principles and preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, based on the principle of the present utility model, several other variations can also be made, which should also be regarded as the protection scope of the present utility model.

Claims

1. A universal joint fork connection assembly, comprising a shaft and a universal joint fork, wherein the shaft is fixedly connected to the universal joint fork, characterized in that: It also includes a connecting member and a shock absorbing plate, wherein the connecting member is fixedly connected to the shaft member, the shock absorbing plate is connected to the connecting member via a set of fasteners, and the shock absorbing plate is also connected to the universal joint fork via another set of fasteners; The shock absorbing disc comprises a sleeve, a coil and a vulcanized rubber layer. The coil is wound between a plurality of the sleeves. The vulcanized rubber layer wraps the coil. The sleeve is used to penetrate the fastener.

2. The universal joint fork connection assembly according to claim 1, characterized in that: The connecting member includes a main body and two ears. The main body is sleeved on the outside of the shaft and fixedly connected to the shaft. The two ears are respectively located on opposite sides of the main body. The ears are connected to the shock absorbing plate through fasteners.

3. The universal joint fork connection assembly according to claim 2, characterized in that: The main body and the shaft are fixedly connected by interference fit, or clamping, or riveting, or rib-groove fit.

4. The universal joint fork connection assembly according to claim 1, characterized in that: The shaft member is an extended fork shaft, or a solid shaft, or a tubular shaft.

5. The universal joint fork connection assembly according to claim 4, characterized in that: A docking joint is provided on the opposite end of the extended fork shaft connected to the shock absorber plate. A docking hole is provided in the docking joint. The cross section of the docking hole is a single D-type interface, a double D-type interface, or a V-shaped interface.

6. The universal joint fork connection assembly according to claim 5, characterized in that: A horizontal crack perpendicular to the axial direction is provided between the butt joint and the main body of the extended fork shaft.

7. The universal joint fork connection assembly according to claim 2, characterized in that: The yoke connection assembly further includes an elastic member connected to the opposite side of the shock absorbing plate to which the yoke is connected; In a normal state, the elastic member is not in contact with the connecting member; When the shock absorbing disc fails, the elastic member contacts the connecting member.

8. The universal joint fork connection assembly according to claim 7, characterized in that: The elastic member includes a main board, an extension plate and a contact plate. The main board is sleeved outside the shaft and fixedly connected to the shock absorbing plate and the universal joint fork. The contact plate does not contact the connecting member under normal conditions. When the shock absorbing plate fails, the contact plate contacts the connecting member.

9. The universal joint fork connection assembly according to claim 8, characterized in that: The extension plate extends from the main board toward both sides of the ear, the contact plate and the extension plate are perpendicular to each other, the contact plate faces the side of the ear, the gap between the two contact plates is greater than the width of the ear, and when the shock absorber plate fails, the contact plate contacts the ear.

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