Universal joint driving shaft

Abstract

The utility model discloses a universal joint driving shaft which comprises a ball cage and a center shaft and further comprises a mounting assembly used for achieving the effect that a universal joint input shaft is convenient to mount and dismount. The mounting groove is formed in the side edge of the input shaft; the clamping rod is movably arranged in the mounting groove; two ends of the reset spring are fixedly connected with the inner wall of the mounting groove and the bottom end of the clamping rod; the mounting cylinder is fixedly arranged in the mounting seat; the clamping hole is formed in the side edge of the mounting cylinder and is opposite to the clamping rod in position; the threaded hole is formed in the side edge of the mounting base, and a threaded rod is engaged in the threaded hole; the mounting plate is movably arranged on the side edge of the mounting cylinder, and the top surface is rotationally connected with the threaded rod; the push block is fixedly arranged on the bottom surface of the mounting plate and is opposite to the position of the clamping hole; and the guide rod movably penetrates through the two ends of the mounting plate and is fixedly arranged on the side edge of the mounting cylinder, in daily production and life, the input shaft and the mounting base are fixedly connected through clamping connection of the clamping piece and the clamping piece, and the input shaft and the mounting base are conveniently disassembled through transmission fit of the driving piece and the clamping piece.

Description

Technical Field

[0001] The utility model relates to a universal joint driving shaft. Background Art

[0002] The automobile input shaft is an important component of the automobile. One end of the automobile input shaft is connected to the universal joint at the power output end of the automobile gearbox, and the other end of the automobile input shaft is connected to the universal joint at the power input part of the automobile wheel. The function of the automobile input shaft is to transmit torque between the automobile gearbox and the wheel. For example, a constant velocity universal joint input shaft with patent publication number CN107654519A has a snap device on the retaining spring groove, which has high positioning accuracy, small gap between the center shaft and the star sleeve, and extended service life; secondly, the gasket on the center shaft is thickened, and the performance is better; the ball track for the movement of the steel ball is arc-shaped, which makes the accuracy better.

[0003] This embodiment can meet the purpose of improving the running accuracy of the universal joint input shaft and ensure the normal operation of the product, but it has the following defects:

[0004] 1. The length of the center shaft is fixed, which leads to the situation that it does not conform to the actual usage in actual use, reducing the practicality of the universal joint input shaft;

[0005] 2. The universal joint input shaft is installed as a whole. When a fault occurs, it is not convenient to disassemble and repair the universal joint input shaft. Summary of the invention

[0006] The utility model aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a universal joint drive shaft, including a ball cage and a central shaft, and also includes:

[0008] The mounting assembly is used to facilitate the installation and disassembly of the universal joint input shaft.

[0009] The installation components include:

[0010] A mounting seat, one side of which is fixedly connected to the output shaft and is transmission-connected to the ball cage;

[0011] An input shaft is movably arranged on the other side of the mounting seat and has a clamping piece at the end thereof;

[0012] A clamping member, which is arranged in the mounting seat and is clamped and connected with the clamping member;

[0013] The pushing member is arranged on the side of the mounting seat and is transmission-matched with the clamping member.

[0014] The card connector includes:

[0015] A mounting groove, which is provided on the side of the input shaft;

[0016] A clamping rod, which is movably arranged in the installation groove;

[0017] A return spring, both ends of which are fixedly connected to the inner wall of the installation groove and the bottom end of the clamping rod;

[0018] The clamping rod is respectively connected with the clamping member and is in transmission cooperation with the pushing member. The clamping member includes:

[0019] The mounting tube has a conical top and a cylindrical bottom and is fixed in the mounting seat; the clamping hole is arranged on the side of the mounting tube and is opposite to the clamping rod;

[0020] A fixing plate, which is fixed on the top of the installation tube and has a clamping hole in the center;

[0021] The movable plate is fixed in the installation cylinder by pushing the spring.

[0022] The pushers include:

[0023] A threaded hole is provided on the side of the mounting seat and has a threaded rod engaged therein;

[0024] The mounting plate is movably arranged on the side of the mounting tube, and the top surface is rotatably connected with the threaded rod; the push block is fixedly arranged on the bottom surface of the mounting plate, opposite to the position of the clamping hole;

[0025] The guide rod is movable and passes through both ends of the mounting plate and is fixed to the side of the mounting tube. The central axis also includes:

[0026] Fixed sleeve and transmission shaft;

[0027] One end of the fixed sleeve is transmission-connected to the ball cage, and the transmission shaft is slidably arranged in the fixed sleeve; wherein the fixed sleeve and the transmission shaft are fixedly connected via a fixing assembly.

[0028] The fixed components include:

[0029] A plurality of mounting holes are evenly arranged on the transmission shaft;

[0030] Fixing holes, which are arranged on both sides of the fixing sleeve;

[0031] The fixing piece passes through the mounting hole and the fixing hole to fix the fixing sleeve to the transmission shaft; the limiting piece is arranged between the fixing sleeve and the transmission shaft.

[0032] The fixings include:

[0033] A bolt that moves through the mounting hole and the fixing hole;

[0034] A nut that is removably mounted on the outside of the bolt.

[0035] The limiters include:

[0036] Limiting grooves are arranged on both sides of the inner wall of the fixing sleeve;

[0037] The limiting strips are fixedly arranged on both sides of the outer wall of the transmission shaft and movably arranged in the limiting groove.

[0038] The beneficial effects of the utility model are as follows:

[0039] 1. The input shaft and the mounting seat are fixedly connected through the engagement of the clamping member and the engaging member. The input shaft and the mounting seat can be conveniently disassembled through the transmission cooperation between the driving member and the clamping member, which is convenient for the staff to inspect and install the universal joint drive shaft;

[0040] 2. By changing the relative position of the fixing sleeve and the transmission shaft and coordinating the setting of the fixing parts, the length of the central axis can be adjusted, thereby improving the practicality of the universal joint drive shaft during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A top view of a universal joint drive shaft in an embodiment of the present application;

[0042] Figure 2 This is a top view of a cross-sectional view of a universal joint drive shaft in an embodiment of the present application;

[0043] Figure 3 This is a side view of the mounting seat in the embodiment of the present application;

[0044] Figure 4 Based Figure 2 A is an enlarged schematic diagram of the local structure at center A;

[0045] Figure 5 Based Figure 2 A magnified schematic diagram of the local structure at B in the middle;

[0046] Figure 6 Based Figure 2 Enlarged schematic diagram of the local structure at point C in the middle.

[0047] Reference numerals

[0048] 1-ball cage, 2-center axis, 21-fixed sleeve, 22-transmission shaft, 3-mounting assembly, 4-mounting seat, 5-output shaft, 6-input shaft, 7-clamping piece, 71-mounting groove, 72-clamping rod, 73-reset spring, 8-clamping piece, 81-mounting cylinder, 82-clamping hole, 83-fixed plate, 84-clamping hole, 85-movable plate, 86-push spring, 9-push piece, 91-threaded hole, 92-threaded rod, 93-mounting plate, 94-push block, 95-guide rod, 10-fixing assembly, 11-mounting hole, 12-fixing hole, 13-fixing piece, 14-limiting piece, 141-limiting groove, 142-limiting strip. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0050] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0051] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0052] Embodiment 1:

[0053] like Figures 1 to 6 As shown, an embodiment of the present application provides a universal joint drive shaft, including a ball cage 1 and a center shaft 2, and also includes a mounting assembly 3, which is used to facilitate the installation and disassembly of the universal joint input shaft 6.

[0054] Furthermore, the mounting assembly 3 includes a mounting seat 4, one side of which is fixedly connected to the output shaft 5 and is transmission-connected to the ball cage 1; an input shaft 6, which is movably arranged on the other side of the mounting seat 4 and has a clamping member 7 at its end; a clamping member 8, which is arranged in the mounting seat 4 and is clamped and connected to the clamping member 7; and a pushing member 9, which is arranged on the side of the mounting seat 4 and is transmission-matched with the clamping member 7.

[0055] Furthermore, the clamping member 7 includes a mounting groove 71, which is arranged on the side of the input shaft 6; a clamping rod 72, which is movably arranged in the mounting groove 71; a return spring 73, both ends of which are fixedly connected to the inner wall of the mounting groove 71 and the bottom end of the clamping rod 72; wherein the clamping rod 72 is respectively clamped and connected with the clamping member 8 and cooperates with the pushing member 9 for transmission.

[0056] Furthermore, the engaging member 8 includes a mounting tube 81, which has a conical top and a cylindrical bottom and is fixed in the mounting seat 4; a clamping hole 82, which is arranged on the side of the mounting tube 81 and is opposite to the clamping rod 72; a fixed plate 83, which is fixed on the top of the mounting tube 81 and has a clamping hole 84 in the center; and a movable plate 85, which is fixed in the mounting tube 81 by a push spring 86.

[0057] Furthermore, the pushing member 9 includes a threaded hole 91, which is arranged on the side of the mounting seat 4 and is engaged with a threaded rod 92 inside; a mounting plate 93, which is movably arranged on the side of the mounting cylinder 81 and the top surface is rotatably connected to the threaded rod 92; a push block 94, which is fixed on the bottom surface of the mounting plate 93 and is opposite to the clamping hole 82; a guide rod 95, which movably passes through both ends of the mounting plate 93 and is fixed on the side of the mounting cylinder 81.

[0058] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the ball cage 1 is provided with star-shaped sleeves, retaining frames, steel balls and other related components for realizing the transmission of the universal joint input shaft 6 .

[0059] One side of the ball cage 1 is transmission connected to the output shaft 5, and the movable end of the output shaft 5 is fixedly connected to the mounting seat 4, a cavity is provided inside the mounting seat 4, and a through hole is provided on the side of the mounting seat 4 away from the output shaft 5, and through grooves are provided on both sides of the inner wall of the through hole.

[0060] A mounting tube 81 is fixedly installed in the cavity, and the two ends of the mounting tube 81 are conical and cylindrical respectively, and the cone is arranged at the end away from the output shaft 5; the bottom end of the mounting tube 81 is fixedly connected to the inner wall of the cavity, and a fixing plate 83 is fixedly installed on the top end of the mounting tube 81, and the peripheral side of the fixing plate 83 is fixedly connected to the inner wall of the cavity, so as to strengthen the installation strength of the mounting tube 81.

[0061] A clamping hole 84 is provided at the center of the fixing plate 83, and the clamping hole 84 includes a small hole with the same diameter as the through hole, which is used to install the input shaft 6; at the same time, clamping grooves with the same diameter as the through groove are provided on both sides of the inner wall of the small hole, and a certain distance is provided between the fixing plate 83 and the through hole, and the clamping groove and the through groove are offset by 90 degrees, which is used to prevent the input shaft 6 from accidentally detaching from the mounting seat 4.

[0062] A push spring 86 is installed in the bottom of the installation tube 81 . One end of the push spring 86 is fixedly connected to the inner wall of the cavity, and the other end is fixedly connected to the movable plate 85 .

[0063] A mounting groove 71 is provided on the side of the input shaft 6, one end of the return spring 73 is fixedly connected to the inner wall of the mounting groove 71, and a clamping rod 72 is movably provided in the mounting groove 71 and fixedly connected to the return spring 73; a clamping hole 82 is provided on the bottom side of the mounting tube 81, and the clamping rod 72 and the clamping hole 82 are relatively positioned and equal in number. By installing the clamping rod 72 into the clamping groove, the fixed connection between the mounting seat 4 and the input shaft 6 is achieved, and the stability of the connection between the mounting seat 4 and the input shaft 6 can be improved by setting multiple sets of clamping parts 7 and engaging parts 8.

[0064] A mounting plate 93 is movably provided on the side of the clamping hole 82, and the top end of the mounting plate 93 can be rotatably installed with a threaded rod 92; a threaded hole 91 is provided on the side of the mounting seat 4, and the top end of the threaded rod 92 extends to the outside of the mounting seat 4 through the threaded hole 91, and is meshed and connected with the threaded rod 92 through the thread on the inner wall of the threaded hole 91, so that the mounting plate 93 can be driven to move in the mounting seat 4 by rotating the threaded rod 92.

[0065] A guide rod 95 is fixedly installed between the mounting seat 4 and the mounting tube 81 , and the guide rod 95 movably passes through both ends of the mounting plate 93 to limit the mounting plate 93 .

[0066] When the input shaft 6 is connected to the mounting seat 4, the top of the input shaft 6 drives the clamping rod 72 to pass through the through hole and the through slot, then the input shaft 6 is rotated 90 degrees clockwise, and then the input shaft 6 is passed through the small hole and the clamping slot on the fixing plate 83. At this time, the top of the input shaft 6 enters the tapered portion of the mounting cylinder 81, and the clamping rod 72 is pushed into the mounting slot 71 through the gradually reduced cross-sectional diameter of the tapered portion; the clamping rod 72 moves to the corresponding clamping hole 82, and the return spring 73 pushes the clamping rod 72 to be installed. It is installed in the clamping hole 82, and the movement of the input shaft 6 pushes the movable plate 85 to move and the spring 86 to deform. When disassembling, the threaded rod 92 can be rotated clockwise, and the threaded rod 92 is engaged with the threaded hole 91 to drive the mounting plate 93 to move toward the mounting tube 81, and the push block 94 moves synchronously and pushes the clamping rod 72 in the clamping hole 82 out, pushing the spring 86 to restore its deformation and push the input shaft 6 to move outward, so as to facilitate the disassembly of the input shaft 6.

[0067] Embodiment 2:

[0068] like Figure 1 to Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the central shaft 2 also includes a fixed sleeve 21 and a transmission shaft 22; one end of the fixed sleeve 21 is transmission-connected to the ball cage 1, and the transmission shaft 22 can be slidably disposed in the fixed sleeve 21; wherein the fixed sleeve 21 and the transmission shaft 22 are fixedly connected via a fixing assembly 10.

[0069] Furthermore, the fixing assembly 10 includes a plurality of mounting holes 11, which are evenly arranged on the transmission shaft 22; fixing holes 12, which are arranged on both sides of the fixing sleeve 21; fixing members 13, which penetrate the mounting holes 11 and the fixing holes 12 to fix the fixing sleeve 21 and the transmission shaft 22; and a limiting member 14, which is arranged between the fixing sleeve 21 and the transmission shaft 22.

[0070] Furthermore, the fixing member 13 includes a bolt, which movably penetrates the mounting hole 11 and the fixing hole 12; and a nut, which is detachably mounted outside the bolt.

[0071] Furthermore, the limiting member 14 includes limiting grooves 141 , which are provided on both sides of the inner wall of the fixing sleeve 21 ; and limiting strips 142 , which are fixedly provided on both sides of the outer wall of the transmission shaft 22 and movably provided in the limiting grooves 141 .

[0072] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the other side of the ball cage 1 is transmission-connected with a fixed sleeve 21, and limiting grooves 141 are provided on both sides of the interior of the fixed sleeve 21; limiting strips 142 are provided on both sides of the outer wall of the transmission shaft 22, and the limiting strips 142 are aligned with the limiting grooves 141 to realize the installation of the transmission shaft 22.

[0073] The transmission shaft 22 is provided with a plurality of mounting holes 11 , and the fixing sleeve 21 is provided with fixing holes 12 . The fixed connection between the transmission and the fixing sleeve 21 is achieved by the cooperation of bolts and nuts.

[0074] By changing the relative position of the fixing sleeve 21 and the transmission shaft 22 , the length of the central shaft 2 is changed, thereby achieving the adjustable length of the central shaft 2 .

[0075] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A universal joint drive shaft, comprising a ball cage (1) and a center shaft (2), characterized in that: Also includes: The mounting assembly (3) is used to facilitate the installation and removal of the universal joint input shaft (6), and the mounting assembly (3) comprises: A mounting seat (4), one side of which is fixedly connected to an output shaft (5) and is transmission-connected to the ball cage (1); An input shaft (6) is movably arranged on the other side of the mounting seat (4) and has a clamping member (7) at its end; A clamping member (8) is disposed in the mounting seat (4) and is clamped and connected with the clamping member (7); The pushing member (9) is arranged on the side of the mounting seat (4) and is in driving cooperation with the clamping member (7).

2. A universal joint drive shaft according to claim 1, characterized in that: The clamping member (7) comprises: A mounting groove (71) provided on a side of the input shaft (6); A clamping rod (72) movably disposed in the mounting groove (71); A return spring (73), two ends of which are fixedly connected to the inner wall of the mounting groove (71) and the bottom end of the clamping rod (72); The clamping rod (72) is respectively clamped and connected with the clamping member (8) and is transmission-coordinated with the pushing member (9).

3. A universal joint drive shaft according to claim 2, characterized in that: The engaging member (8) comprises: A mounting cylinder (81) having a conical top and a cylindrical bottom, and fixedly disposed in the mounting seat (4); A clamping hole (82) is provided on the side of the mounting tube (81) and is opposite to the clamping rod (72); A fixing plate (83) is fixedly mounted on the top of the mounting tube (81) and has a clamping hole (84) at the center; The movable plate (85) is fixed in the mounting tube (81) by means of a push spring (86).

4. A universal joint drive shaft according to claim 3, characterized in that: The pushing member (9) comprises: A threaded hole (91) is provided on the side of the mounting seat (4) and is internally engaged with a threaded rod (92); A mounting plate (93) is movably arranged on the side of the mounting tube (81), and the top surface is rotatably connected to the threaded rod (92); A push block (94) is fixedly mounted on the bottom surface of the mounting plate (93) and is opposite to the clamping rod (72); The guide rod (95) movably passes through both ends of the mounting plate (93) and is fixedly arranged on the side of the mounting tube (81).

5. The universal joint drive shaft according to claim 1, characterized in that: The central shaft (2) comprises a fixed sleeve (21) and a transmission shaft (22); One end of the fixed sleeve (21) is drivingly connected to the ball cage (1), and the transmission shaft (22) is slidably arranged in the fixed sleeve (21); The fixing sleeve (21) and the transmission shaft (22) are fixedly connected via a fixing assembly (10).

6. A universal joint drive shaft according to claim 5, characterized in that: The fixing assembly (10) comprises: A plurality of mounting holes (11) are evenly arranged on the transmission shaft (22); Fixing holes (12) are provided on both sides of the fixing sleeve (21); A fixing member (13) passes through the mounting hole (11) and the fixing hole (12) to fix the fixing sleeve (21) and the transmission shaft (22); The limiting member (14) is arranged between the fixing sleeve (21) and the transmission shaft (22).

7. A universal joint drive shaft according to claim 6, characterized in that: The limiting member (14) comprises: Limiting grooves (141) are provided on both sides of the inner wall of the fixing sleeve (21); The limiting strips (142) are fixedly arranged on both sides of the outer wall of the transmission shaft (22) and movably arranged in the limiting groove (141).

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