Electric drive full-floating half shaft screw anti-loosening structure

Abstract

The utility model provides an anti-loosening structure for an electric drive full-floating half shaft screw, and belongs to the technical field of half shaft accessories. The electric drive full-floating half shaft thread anti-loosening structure comprises a half shaft assembly and an anti-loosening assembly. The half shaft assembly comprises a half shaft and a connecting disc, the connecting disc is fixed to the end of the half shaft, a nail hole is formed in the connecting disc, and a conical groove is formed in one side of the nail hole; the anti-loosening assembly comprises a conical gasket and a locking piece, the conical gasket is arranged in the conical groove, and the locking piece penetrates through the conical gasket and extends to the outside. According to the utility model, the locking piece is tighter and tighter, the phenomenon of unscrewing is avoided to the greatest extent, the firmness and the stability of installation are improved, and the damage of the half shaft caused by the breakage of the bolt is also avoided to the greatest extent, so that the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to half shaft accessory technology field, specifically, relate to a kind of electric drive full floating half shaft silk anti-loose structure. BACKGROUND

[0002] Half shaft is also called drive shaft, which connects differential and drive wheel. Half shaft is the shaft that transmits torque between gearbox reducer and drive wheel. Each end of half shaft has a universal joint, which is connected with reducer gear and hub bearing inner ring through spline on universal joint.

[0003] At present, the existing half shaft is mostly directly connected with the hub by opening a circular hole on the connecting disc and connecting between the bolt and the hub, which may cause bolt thread stripping. Once thread stripping occurs, it may cause bolt fracture and half shaft damage. Therefore, it is necessary to provide an electric drive full floating half shaft thread anti-loose structure to solve the above problems. UTILITY MODEL CONTENTS

[0004] To make up for the above shortcomings, the utility model provides an electric drive full floating half shaft thread anti-loose structure, which aims to improve the problem that the existing half shaft is mostly directly connected with the hub by opening a circular hole on the connecting disc and connecting between the bolt and the hub, which may cause bolt thread stripping. Once thread stripping occurs, it may cause bolt fracture and half shaft damage.

[0005] The utility model is implemented as follows:

[0006] The utility model provides an electric drive full floating half shaft thread anti-loose structure, which comprises a half shaft assembly and an anti-loose assembly.

[0007] The half shaft assembly comprises a half shaft and a connecting disc, the connecting disc is fixed to the end of the half shaft, a nail hole is formed in the connecting disc, and a tapered groove is formed on one side of the nail hole; the anti-loose assembly comprises a tapered washer and a locking piece, the tapered washer is placed in the tapered groove, and the locking piece extends to the outside through the tapered washer.

[0008] In one embodiment of the utility model, the nail hole and the tapered groove are circumferentially distributed on the connecting disc.

[0009] In one embodiment of the utility model, a slit is formed on one side of the tapered washer, an annular outer edge is formed on the upper end of the tapered washer, and the annular outer edge is attached to the surface of the connecting disc.

[0010] In an embodiment of the utility model, the locking piece includes screw rod and rotating head, the rotating head with one end of the screw rod is fixed, the screw rod is active and is passed through the nail hole, the surface of rotating head still has the fixed pressing plate, the surface of pressing plate forms the anti -skid convex.

[0011] In an embodiment of the utility model, the rotating head is the cross section of regular hexagon, the anti -skid convex is circumferential distribution on the surface of pressing plate.

[0012] The utility model discloses the beneficial effect is: the utility model discloses a kind of electric drive full floating half shaft silk anti-loose structure by above design, when being connected when half shaft and wheel hub, first taper washer is placed into taper groove, then locking piece is connected through taper washer and nail hole, so in the process of connection, through the setting of taper groove and taper washer, locking piece can be more and more tight, maximum limit avoids the phenomenon of wire withdrawal, improves the firmness and stability of installation, also maximum limit avoids the damage of half shaft caused by bolt fracture, so that use can be more convenient. ACCURACY OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be simply introduced to the drawing needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.

[0014] Figure 1 It is the schematic diagram of electric drive full floating half shaft silk anti-loose structure provided by the embodiment of the utility model;

[0015] Figure 2 It is the exploded structural schematic diagram of electric drive full floating half shaft silk anti-loose structure provided by the embodiment of the utility model;

[0016] Figure 3 It is the schematic diagram of connection disc section structure of electric drive full floating half shaft silk anti-loose structure provided by the embodiment of the utility model;

[0017] Figure 4 It is the exploded schematic diagram of anti-loose assembly of electric drive full floating half shaft silk anti-loose structure provided by the embodiment of the utility model.

[0018] In the drawing: 100-half shaft assembly;110-half shaft;120-connection disc;130-nail hole;131-taper groove;200-anti-loose assembly;210-taper washer;211-aperture;212-annular outer edge;220-locking piece;221-screw rod;222-rotating head;223-pressing plate;224-anti-skid convex. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. EMBODIMENT

[0020] Please refer to Figures 1-4 The utility model provides a technical scheme: an electric drive full-floating half shaft silk anti-loose structure, which comprises a half shaft assembly 100 and an anti-loose assembly 200.

[0021] Please refer to Figures 1-3 The half shaft assembly 100 comprises a half shaft 110 and a connecting disc 120, the connecting disc 120 is fixed at the end of the half shaft 110, the interior of the connecting disc 120 is provided with a nail hole 130, one side of the nail hole 130 is formed with a tapered groove 131.

[0022] The nail hole 130 and the tapered groove 131 are circumferentially distributed on the connecting disc 120, and the stability of connection through the locking piece 220 can be increased by increasing the number of the nail hole 130 and the tapered groove 131.

[0023] Please refer to Figure 1 , Figure 2 and Figure 4 The anti-loose assembly 200 comprises a tapered washer 210 and a locking piece 220, the tapered washer 210 is arranged in the interior of the tapered groove 131, and the locking piece 220 extends to the outside through the tapered washer 210.

[0024] The taper washer 210 is provided with an opening 211 on one side, and the upper end of the taper washer 210 is formed with an annular outer edge 212 which is in contact with the surface of the connecting disc 120. The opening 211 can provide a contraction allowance for the taper washer 210, so that the taper washer 210 is more closely in contact with the taper groove 131. The annular outer edge 212 can be clamped around the taper groove 131 to improve the stability of use. The locking member 220 comprises a screw rod 221 and a rotating head 222. The rotating head 222 is fixed to one end of the screw rod 221. The screw rod 221 is movably penetrated through the nail hole 130. The surface of the rotating head 222 is further fixed with a pressing plate 223. The surface of the pressing plate 223 is formed with anti-skid protrusions 224. The rotating head 222 has a hexagonal cross section. The anti-skid protrusions 224 are circumferentially distributed on the surface of the pressing plate 223. The hexagonal rotating head 222 can be conveniently rotated by a wrench. The circumferential distribution of the anti-skid protrusions 224 can increase the contact area between the annular outer edge 212, so that the contact is more tightly.

[0025] Specifically, the working principle of the electric drive full-floating half shaft wire anti-loose structure is as follows: when the half shaft is connected with the hub, the taper washer 210 is first placed in the taper groove 131, and then the locking member 220 is connected by penetrating through the taper washer 210 and the nail hole 130. In this way, the screw rod 221 is tightened during the connection process, the wire retreat phenomenon is avoided to the maximum extent, the installation firmness and stability are improved, and the damage of the half shaft 110 caused by the bolt fracture is also avoided to the maximum extent. Therefore, the use is more convenient.

[0026] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric drive full-floating half shaft wire anti-loose structure, comprising a half shaft assembly (100) and an anti-loose assembly (200) mounted on the half shaft assembly (100), characterized in that, the half shaft assembly (100) comprises a half shaft (110) and a connecting disc (120), the connecting disc (120) is fixed at the end of the half shaft (110), a nail hole (130) is formed in the connecting disc (120), and a tapered groove (131) is formed on one side of the nail hole (130); the anti-loose assembly (200) comprises a tapered washer (210) and a locking piece (220), the tapered washer (210) is arranged in the tapered groove (131), and the locking piece (220) extends through the tapered washer (210) to the outside.

2. The electrically driven full-floating semi-axle wire anti-loose structure according to claim 1, characterized in that, The nail hole (130) and the tapered groove (131) are circumferentially distributed on the connecting disc (120).

3. The electrically driven full-floating semi-axle wire anti-loose structure according to claim 1, characterized in that, One side of the tapered washer (210) is provided with an opening (211), the upper end of the tapered washer (210) is provided with an annular outer edge (212), and the annular outer edge (212) is attached to the surface of the connecting disc (120).

4. The electrically driven full-floating semi-axle wire anti-loose structure according to claim 1, characterized in that, The locking piece (220) comprises a screw rod (221) and a rotating head (222), the rotating head (222) is fixed to one end of the screw rod (221), the screw rod (221) movably penetrates the nail hole (130), and the surface of the rotating head (222) is further provided with a pressing plate (223), and the surface of the pressing plate (223) is provided with anti-skid protrusions (224).

5. The electrically driven full-floating semi-axle wire anti-loose structure according to claim 4, characterized in that, The cross section of the rotating head (222) is a regular hexagon, and the anti-skid protrusions (224) are circumferentially distributed on the surface of the pressing plate (223).

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