New energy automobile steering connecting shaft convenient to disassemble

Abstract

The utility model relates to the technical field of automobile accessories, in particular to a new energy automobile steering connecting shaft convenient to disassemble. The connecting shaft comprises a connecting shaft body and a universal joint assembly, the connecting shaft body comprises a connecting sleeve, a positioning connecting shaft is coaxially fixed at one end of the connecting sleeve, and a rotation stopping structure is arranged at the other end of the connecting sleeve, so that the connecting sleeve and the sliding connecting shaft form an axial insertion type rotation stopping matching relationship; a plurality of evenly-distributed connecting holes are formed in the outer wall of the sliding connecting shaft in the axial direction, a through hole is formed in the connecting sleeve in the radial direction in a penetrating mode, and a positioning screw sequentially penetrates through the through hole and the connecting hole and then is fixedly connected through a nut. And in the later use process, the sliding connecting shaft slides in the connecting sleeve, so that the universal joint assembly can smoothly fall off, the connecting shaft body can be conveniently and independently disassembled, and the later disassembly portability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a conveniently detachable steering connecting shaft of a new energy vehicle. Background Art

[0002] Automobiles are defined as follows: non-track-borne vehicles with four or more wheels driven by power, mainly used for: carrying people and (or) goods; towing vehicles carrying people and (or) goods; special purposes. According to the type of energy used in automobiles, they can be mainly divided into traditional fuel-powered vehicles and new energy vehicles. The steering system is a key system in automobiles. The steering system is generally composed of steering wheels, commutators, steering columns, connecting shafts, steering gears, universal joints and other components.

[0003] The existing steering connecting shaft, as shown in Chinese patent publication number "CN107521595A", is often an integrated structure and is installed through a universal joint; this means that after the steering connecting shaft is installed, when it needs to be repaired and maintained, it is necessary to disassemble it together with the universal joint, and the connecting shaft cannot be disassembled independently, which increases the difficulty of disassembling the connecting shaft in the later stage.

[0004] Therefore, it is necessary to provide a new and easily disassembled new energy vehicle steering connecting shaft to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a steering connecting shaft of a new energy vehicle which can be easily disassembled.

[0006] The conveniently disassembled steering connecting shaft of a new energy vehicle provided by the utility model comprises: a connecting shaft body and a universal joint assembly;

[0007] The connecting shaft body includes a connecting sleeve, one end of which is coaxially fixed with a positioning connecting shaft, and the other end of the connecting sleeve is arranged with a anti-rotation structure, so that the connecting sleeve and the sliding connecting shaft form an axial plug-in anti-rotation fitting relationship; a plurality of evenly distributed connecting holes are opened along the axial direction on the outer wall of the sliding connecting shaft, and a through hole is opened radially through the connecting sleeve, and the positioning screw passes through the through hole and the connecting hole in sequence and is fixedly connected by a nut.

[0008] Preferably, a plurality of annularly distributed slots are provided inside the connecting sleeve, a plurality of annularly distributed insertion strips are provided on the outer wall of the sliding connecting shaft, and the outer walls of the insertion strips abut against and are slidably connected to the inner walls of the slots, thereby forming a spline-type anti-rotation fit between the connecting sleeve and the sliding connecting shaft.

[0009] Preferably, the positioning connecting shaft and the sliding connecting shaft are both provided with a coaxially fixed fixing ring on one side away from the connecting sleeve, and the ring bodies of the two fixing rings are evenly distributed with axial connecting rods in the circumferential direction, and the axial connecting rods on the two fixing rings are staggered one by one along the circumferential direction; an axial sliding guide fit is formed between the axial connecting rod on one of the fixing rings and the reserved hole on the other fixing ring.

[0010] Preferably, the positioning connecting shaft and the sliding connecting shaft are both sleeved with a coaxially fixed fixing ring on one side away from the connecting sleeve, and the ring bodies of the two fixing rings are evenly distributed with axial connecting rods in the circumferential direction, and the axial connecting rods on the two fixing rings are staggered one by one along the circumferential direction; it also includes two groups of connecting rings coaxially sleeved on the connecting sleeve, wherein the axial connecting rod on one fixing ring extends axially, axially penetrates a group of connecting rings close to the fixing ring, and is fixed to another group of connecting rings relatively far away; the axial connecting rod on the other fixing ring extends axially, axially penetrates a group of connecting rings close to the fixing ring, and is fixed to another group of connecting rings relatively far away.

[0011] Preferably, the universal joint assembly is provided with two groups, the universal joint assembly comprises a first universal joint fork, and the first universal joint fork is provided with a second universal joint fork rotatably connected via a rotating shaft.

[0012] Preferably, a fixedly connected connecting cylinder is provided on the outer wall of the second universal joint fork, and a spline groove is opened inside the connecting cylinder; a slidably connected spline shaft is inserted into the spline groove, and the spline shaft is respectively fixedly connected to the positioning connecting shaft and the sliding connecting shaft at one end away from the connecting sleeve.

[0013] Preferably, there are two positioning screws arranged in parallel and a positioning plate is fixed at the same end, a chamfer is arranged on the outer wall of the connecting sleeve, and the positioning plate is fittedly installed on the chamfer. At this time, from an axial perspective, the outer wall of the positioning plate and the outer wall of the connecting sleeve form a whole circle.

[0014] Compared with the related art, the conveniently detachable steering connecting shaft of the new energy vehicle provided by the utility model has the following beneficial effects:

[0015] 1. The utility model sets the connecting shaft body as a split structure. In the later use process, the sliding connecting shaft is slidably adjusted inside the connecting sleeve, thereby shortening the length of the connecting shaft body, and smoothly reserving the disassembly and assembly space of the universal joint assembly, facilitating the rapid axial disassembly and assembly of the universal joint assembly, and also facilitating the independent disassembly of the connecting shaft body, thereby improving the portability of the later disassembly and maintenance of the device.

[0016] 2. The utility model can smoothly form a reinforcement frame on the outside of the connecting shaft body by sleeved a fixing ring on the outside of the connecting shaft body and inserting an axial connecting rod in the supporting ring, through the installation of the supporting ring and the fixing ring, thereby helping to increase the supporting force of the connecting shaft body and improving the supporting strength of the device in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of a conveniently detachable steering connecting shaft for a new energy vehicle provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure of the connecting shaft body shown;

[0019] Figure 3 for Figure 2 A schematic diagram of a partial cross-sectional structure of the connecting sleeve shown;

[0020] Figure 4 for Figure 2 The structural schematic diagram of the sliding connection shaft and its components shown;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the fixing ring and its components shown;

[0022] Figure 6 for Figure 1 Schematic diagram of the structure of the universal joint assembly shown.

[0023] Numbers in the figure: 1. connecting shaft body; 11. positioning connecting shaft; 12. connecting sleeve; 121. slot; 122. through hole; 13. sliding connecting shaft; 131. insert; 132. connecting hole; 14. positioning screw; 2. fixing ring; 21. axial connecting rod; 22. connecting ring; 3. universal joint assembly; 31. first universal joint fork; 32. second universal joint fork; 33. connecting tube; 34. spline groove; 4. spline shaft. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 6The embodiment of the utility model provides a conveniently detachable steering connecting shaft for a new energy vehicle. The conveniently detachable steering connecting shaft for a new energy vehicle includes: a connecting shaft body 1 and a universal joint assembly 3.

[0027] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The connecting shaft body 1 includes a connecting sleeve 12, one end of which is coaxially fixed with a positioning connecting shaft 11, and the other end of the connecting sleeve 12 is arranged with a rotation-stopping structure, so that the connecting sleeve 12 and the sliding connecting shaft 13 form an axial plug-in rotation-stopping fitting relationship; the outer wall of the sliding connecting shaft 13 is provided with a plurality of evenly distributed connecting holes 132 along the axial direction, and the connecting sleeve 12 is provided with a through hole 122 radially penetrating therethrough, and the positioning screws 14 are sequentially passed through the through holes 122 and the connecting holes 132 and fixedly connected by nuts, and the positioning screws 14 are two arranged in parallel and a positioning plate is fixed at the same end, and a chamfer is arranged on the outer wall of the connecting sleeve 12, and the positioning plate is fitted and installed at the chamfer. At this time, from an axial perspective, the outer wall of the positioning plate and the outer wall of the connecting sleeve 12 form a whole circle. If necessary, such as Figure 1 and Figure 2 As shown, the positioning plate can also be used to further improve the positioning accuracy and reliability of the positioning screw 14 by relying on the anti-rotation cooperation between the positioning plate and the connecting sleeve 12.

[0028] It should be noted that: by setting the connecting shaft body 1 as a split structure, during the later use, when the connecting shaft body 1 needs to be disassembled, the position between the positioning connecting shaft 11 and the sliding connecting shaft 13 in the connecting shaft body 1 can be adjusted to make the sliding connecting shaft 13 slide and shorten, so that the connecting shaft body 1 can be smoothly detached from the universal joint assemblies 3 at both ends, thereby facilitating the independent disassembly of the connecting shaft body 1 or the universal joint assembly 3, thereby improving the portability of the later disassembly of the device.

[0029] In the embodiments of the present invention, please refer to Figure 1 and Figure 5, the side of the positioning connection shaft 11 and the sliding connection shaft 13 away from the connecting sleeve 12 is sleeved with a coaxial fixed fixing ring 2, the ring bodies of the two fixing rings 2 are evenly distributed with axial connecting rods 21 in the circumferential direction, and the axial connecting rods 21 on the two fixing rings 2 are staggered one by one along the circumferential direction; the axial connecting rod 21 on one of the fixing rings 2 forms an axial sliding guide match with the reserved hole on the other fixing ring, the side of the positioning connection shaft 11 and the sliding connection shaft 13 away from the connecting sleeve 12 is sleeved with a coaxial fixed fixing ring 2, the ring bodies of the two fixing rings 2 are evenly distributed in the circumferential direction There are axial connecting rods 21, and the axial connecting rods 21 on the two fixing rings 2 are staggered one by one along the circumferential direction; it also includes two groups of connecting rings 22 coaxially sleeved on the connecting sleeve 12, wherein the axial connecting rod 21 on one fixing ring 2 extends axially, axially penetrates a group of connecting rings 22 close to the fixing ring 2, and is fixed to each other with the other group of connecting rings 22 relatively far away; the axial connecting rod 21 on the other fixing ring 2 extends axially, axially penetrates a group of connecting rings 22 close to the fixing ring 2, and is fixed to each other with the other group of connecting rings 22 relatively far away.

[0030] It should be noted that: by inserting the axial connecting rods 21 between the fixing rings 2, and inserting the connecting rings 22 outside the axial connecting rods 21 staggered on both sides, when adjusting the length of the connecting shaft body 1 during the installation and disassembly process of the connecting shaft body 1 in the later stage, the axial connecting rods 21 can be smoothly slid inside the connecting rings 22, so that the length adjustment of the connecting shaft body 1 is more flexible. At the same time, by installing the fixing rings 2, the axial connecting rods 21 and the connecting rings 22, a reinforcement frame can be smoothly formed outside the connecting shaft body 1, thereby helping to improve the supporting strength of the connecting shaft body 1.

[0031] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 The universal joint assembly 3 is provided with two groups, and the universal joint assembly 3 includes a first universal joint fork 31, and the first universal joint fork 31 is provided with a second universal joint fork 32 which is rotatably connected through a rotating shaft, and the outer wall of the second universal joint fork 32 is provided with a fixedly connected connecting cylinder 33, and the interior of the connecting cylinder 33 is provided with a spline groove 34; the interior of the spline groove 34 is inserted with a spline shaft 4 which is slidably connected, and the spline shaft 4 is fixedly connected to the positioning connecting shaft 11 and the sliding connecting shaft 13 at one end away from the connecting sleeve 12, respectively.

[0032] It should be noted that: through the arrangement of the spline groove 34 and the spline shaft 4, when the connecting shaft body 1 is installed later, after the universal joint assembly 3 is connected to the corresponding component and the length of the connecting shaft body 1 is adjusted, the connecting shaft body 1 can be smoothly inserted and installed in the universal joint assembly 3 through the spline shaft 4. When the connecting shaft body 1 needs to be disassembled and repaired later, it is only necessary to shorten the length of the connecting shaft body 1 and take it out of the universal joint assembly 3 without disassembling the universal joint assembly 3. Therefore, the portability of the device for later disassembly can be improved.

[0033] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4 A plurality of annularly distributed slots 121 are provided inside the connecting sleeve 12, and a plurality of annularly distributed inserts 131 are provided on the outer wall of the sliding connecting shaft 13. The outer wall of the inserts 131 abuts against and is slidably connected to the inner wall of the slots 121, so that the connecting sleeve 12 and the sliding connecting shaft 13 form a spline-type anti-rotation fit.

[0034] It should be noted that: through the arrangement of the slot 121 and the insertion strip 131, after the sliding connection shaft 13 is inserted into the connecting sleeve 12 later, the sliding connection shaft 13 can be prevented from rotating randomly inside the connecting sleeve 12, thereby improving the stability of the later installation of the sliding connection shaft 13.

[0035] The working principle of the conveniently disassembled new energy vehicle steering connecting shaft provided by the utility model is as follows:

[0036] When using the device later, firstly, the universal joint assembly 3 can be connected to the corresponding components in the steering system of the automobile;

[0037] Then the connecting shaft body 1 can be taken out, and the sliding connecting shaft 13 can be slid inside the connecting sleeve 12 to shrink the sliding connecting shaft 13, and then the spline shaft 4 at the end of the positioning connecting shaft 11 can be smoothly inserted into the spline groove 34 of the universal joint assembly 3 on one side, and then the sliding connecting shaft 13 can be extracted to make the sliding connecting shaft 13 smoothly slide toward the side away from the positioning connecting shaft 11 until the spline shaft 4 at the end of the sliding connecting shaft 13 is smoothly inserted into the spline groove 34 of the universal joint assembly 3 on the other side;

[0038] At this time, the staff can take out the positioning screw 14, insert the positioning screw 14 into the through hole 122 and the connecting hole 132, and screw the nut into the positioning screw 14 to fix it, so that the sliding connecting shaft 13 and the connecting sleeve 12 can be smoothly fixed;

[0039] After completing the fixation of the connecting shaft body 1, the axial connecting rod 21 can be taken out and inserted into the fixing ring 2 until its end is connected with the internal thread of the connecting ring 22, and the positioning screw 14, the fixing ring 2 and the connecting ring 22 can be smoothly installed on the outside of the connecting shaft body 1, so that a reinforcement frame can be smoothly formed on the outside of the connecting shaft body 1, thereby helping to increase the supporting strength of the connecting shaft body 1 in the later stage.

[0040] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A conveniently disassembled steering connecting shaft for new energy vehicles, characterized in that: include: Connecting the shaft body (1) and the universal joint assembly (3); The connecting shaft body (1) comprises a connecting sleeve (12), one end of which is coaxially fixed with a positioning connecting shaft (11), and the other end of which is arranged with a rotation-stopping structure, so that the connecting sleeve (12) and the sliding connecting shaft (13) form an axial plug-in rotation-stopping fitting relationship; a plurality of evenly distributed connecting holes (132) are axially provided on the outer wall of the sliding connecting shaft (13), a through hole (122) is radially penetrated on the connecting sleeve (12), and the positioning screw (14) passes through the through hole (122) and the connecting hole (132) in sequence and is fixedly connected by a nut.

2. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 1 is characterized in that: The connection sleeve (12) is provided with a plurality of annularly distributed slots (121) inside, and the outer wall of the sliding connection shaft (13) is provided with a plurality of annularly distributed insertion strips (131), and the outer wall of the insertion strip (131) abuts against the inner wall of the slot (121) and is slidably connected, so that the connection sleeve (12) and the sliding connection shaft (13) form a spline-type anti-rotation fit.

3. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 1 or 2, characterized in that: A coaxially fixed fixing ring (2) is sleeved on the side of the positioning connecting shaft (11) and the sliding connecting shaft (13) away from the connecting sleeve (12); the ring bodies of the two fixing rings (2) are evenly distributed with axial connecting rods (21) in the circumferential direction, and the axial connecting rods (21) on the two fixing rings (2) are staggered one by one in the circumferential direction; an axial sliding guide fit is formed between the axial connecting rod (21) on one fixing ring (2) and the reserved hole on the other fixing ring.

4. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 1 or 2, characterized in that: The positioning connection shaft (11) and the sliding connection shaft (13) are both sleeved with a coaxially fixed fixing ring (2) on one side away from the connecting sleeve (12), and the ring bodies of the two fixing rings (2) are both uniformly distributed with axial connecting rods (21) in the circumferential direction, and the axial connecting rods (21) on the two fixing rings (2) are staggered and distributed one by one in the circumferential direction; and also include two groups of connecting rings (22) coaxially sleeved on the connecting sleeve (12), wherein the axial connecting rod (21) on one fixing ring (2) extends in the axial direction, axially penetrates a group of connecting rings (22) close to the fixing ring (2), and is fixed to another group of connecting rings (22) relatively far away; and the axial connecting rod (21) on the other fixing ring (2) extends in the axial direction, axially penetrates a group of connecting rings (22) close to the fixing ring (2), and is fixed to another group of connecting rings (22) relatively far away.

5. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 1 or 2, characterized in that: The universal joint assembly (3) is provided with two groups, and the universal joint assembly (3) comprises a first universal joint fork (31), and the first universal joint fork (31) is provided with a second universal joint fork (32) rotatably connected via a rotating shaft.

6. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 5 is characterized in that: A fixedly connected connecting tube (33) is provided on the outer wall of the second universal joint fork (32), and a spline groove (34) is provided inside the connecting tube (33); a slidably connected spline shaft (4) is inserted inside the spline groove (34), and the spline shaft (4) is fixedly connected to the positioning connecting shaft (11) and the sliding connecting shaft (13) at one end away from the connecting sleeve (12), respectively.

7. The conveniently detachable steering connecting shaft for new energy vehicles according to claim 1 or 2, characterized in that: The positioning screws (14) are two arranged in parallel and a positioning plate is fixed at the same end. The outer wall of the connecting sleeve (12) is provided with a chamfered edge, and the positioning plate is fitted and installed at the chamfered edge. At this time, in the axial perspective, the outer wall of the positioning plate and the outer wall of the connecting sleeve (12) form a full circle.

Images