Drive axle structure

Abstract

The utility model discloses a drive axle structure which comprises an axle housing body and a pair of reinforcing mechanisms. The axle housing main body is connected with a pair of fixing rods, and the fixing rods are connected with telescopic parts; the pair of reinforcing mechanisms are connected to the pair of fixing rods respectively and correspond to the pair of telescopic parts respectively, each reinforcing mechanism comprises a pair of reinforcing pieces, the telescopic parts are wrapped with the reinforcing pieces, connecting lugs are fixedly connected to the two ends of each reinforcing piece, a pair of fastening mechanisms is connected between every two adjacent connecting lugs, and each fastening mechanism comprises a fastening nail; and one end of the fastening nail penetrates through one of the connecting lugs and is inserted into the other connecting lug, the fastening nail is inserted into the cavity, and the clamping ball is clamped in the groove, so that the pair of reinforcing pieces can be fixed, and the operation is convenient. The telescopic part of the drive axle can be reinforced, so that the overall strength of the drive axle can be improved, the damage probability of the drive axle is reduced, and the service life of the drive axle is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of drive axles, and in particular relates to a drive axle structure. Background Art

[0002] The drive axle is a mechanism at the end of the drive train. Its primary function is to change the speed and torque from the transmission and transmit them to the drive wheels. The drive axle plays a crucial role, transmitting engine torque from the universal joint through the final drive, differential, axles, and other components to the drive wheels, thereby reducing speed and increasing torque. Furthermore, the drive axle can redirect torque through the final drive's bevel gear pair, ensuring optimal torque delivery. Furthermore, the drive axle can achieve different wheel speeds on either side through the differential, ensuring vehicle stability and safety during driving. Finally, the drive axle, through the axle housing and wheels, carries load and transmits torque, contributing to vehicle stability.

[0003] Chinese utility model patent publication number CN215552341U discloses a telescopic drive axle structure. This structure, through the provision of telescopic parts, allows the length of the drive axle to be adjusted. This reduces the need for excessive molds when producing the drive axle, thereby reducing production costs. However, the telescopic drive axle lacks a reinforcement structure in the telescopic portion during use, resulting in relatively low connection strength in the telescopic portion. This increases the probability of damage to the drive axle and reduces its service life.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a drive axle structure.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a drive axle structure, which can solve the problem of low connection strength of the telescopic part of the drive axle.

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A drive axle structure includes: an axle housing body and a pair of reinforcement mechanisms;

[0009] A pair of fixing rods are connected to the axle housing body, and a telescopic portion is connected to the fixing rods;

[0010] A pair of reinforcing mechanisms are respectively connected to a pair of fixing rods and respectively correspond to a pair of telescopic parts. The reinforcing mechanism includes a pair of reinforcing members. The pair of reinforcing members are both wrapped around the telescopic part. Both ends of the reinforcing members are fixedly connected with connecting ears, and a pair of fastening mechanisms are connected between adjacent pairs of connecting ears.

[0011] In one or more embodiments of the present invention, the fastening mechanism includes a fastening nail, one end of which passes through one of the connecting ears and is inserted into the other connecting ear. When the fastening nail is inserted into the cavity, the snap ball will be snapped into the groove, thereby achieving the fixation of a pair of reinforcements, which is convenient for operation.

[0012] In one or more embodiments of the present invention, a groove is provided at one end of the fastening nail located in the connecting ear to facilitate the engagement of the snap ball, so as to achieve the fixation of a pair of reinforcements and utilize a pair of reinforcements to enhance the strength of the telescopic part.

[0013] In one or more embodiments of the present invention, a cavity is provided in the connecting ear, and an extrusion plate is slidably provided in the cavity, and the extrusion plate is used to squeeze a plurality of snap-fit ​​balls so that the snap-fit ​​balls can be snapped into the groove;

[0014] The extrusion plate is provided with a avoidance groove, and one end of the fastening nail is arranged in the avoidance groove so that the engaging ball can be better engaged in the groove.

[0015] In one or more embodiments of the present invention, a plurality of snap-fit ​​balls are provided in the cavity, and the snap-fit ​​balls are provided on one side of the extrusion plate close to the fastening nail. The snap-fit ​​balls are engaged with the groove. By engaging the snap-fit ​​balls in the groove, the fastening nail can be fixed, and then the fastening nail can be used to fix a pair of reinforcements, so that the strength of the telescopic part can be strengthened by using the reinforcements.

[0016] In one or more embodiments of the present invention, a connecting rope is connected between the extrusion plate and the engaging ball, and when the extrusion plate moves, the engaging ball can be driven to move via the connecting rope.

[0017] In one or more embodiments of the present invention, an elastic sleeve is provided on a side of the extrusion plate away from the engaging balls, and the elastic sleeve can apply a force to the extrusion plate, so that the extrusion plate can squeeze the engaging balls and engage the engaging balls in the grooves, thereby achieving the fixation of the fastening nails;

[0018] The inner wall of the cavity and the extrusion plate are both provided with limiting rings, and the elastic sleeve is provided between a pair of limiting rings for fixing the elastic sleeve.

[0019] In one or more embodiments of the present invention, a pull rope is connected between an adjacent pair of the extrusion plates. By pulling the pull rope, the pair of extrusion plates can be moved synchronously in the cavity, so that the plurality of engaging balls can be simultaneously released from the groove, thereby facilitating operation.

[0020] The side wall of the drawstring located at the connecting ear is connected with a handle cover, which improves the comfort when pulling the drawstring.

[0021] In one or more embodiments of the present invention, a pair of protective sleeves are connected to the connecting ear, and the two ends of the pull rope are respectively passed through the pair of protective sleeves and connected to the extrusion plate to protect the pull rope and reduce wear of the pull rope.

[0022] In one or more embodiments of the present invention, both ends of the reinforcement are fixedly connected with an extension portion, and the extension portion fits in contact with the fixing rod, which can further enhance the strength of the telescopic portion.

[0023] Compared with the prior art, the drive axle structure of the present invention can strengthen the telescopic portion of the drive axle, thereby increasing the overall strength of the drive axle, reducing the probability of damage to the drive axle, and thus ensuring the service life of the drive axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a three-dimensional diagram of a drive axle structure in one embodiment of the present utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0027] Figure 3 This is a partial structural diagram of a drive axle structure in one embodiment of the present utility model;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0029] Figure 5 This is a cross-sectional view of a drive axle structure in one embodiment of the present utility model;

[0030] Figure 6 for Figure 5 Schematic diagram of the structure at point C in the middle.

[0031] Description of main reference numerals:

[0032] 1-bridge housing body, 101-fixing rod, 102-telescopic part, 2-reinforcement mechanism, 201-reinforcement member, 202-connecting ear, 203-fastening nail, 2031-groove, 204-cavity, 205-extrusion plate, 206-clamping ball, 207-connecting rope, 208-elastic sleeve, 209-pull rope, 210-protective sleeve, 211-handle cover, 212-extension part. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] like Figures 1 to 6 As shown, a drive axle structure in one embodiment of the present invention includes an axle housing body 1 and a pair of reinforcement mechanisms 2 .

[0035] Among them, a pair of fixing rods 101 are connected to the bridge housing body 1, and a telescopic part 102 is connected to the fixing rods 101. The length of the pair of fixing rods 101 can be adjusted through the telescopic part 102, so that the manufacturer does not need to use too many molds when producing the drive axle, which can reduce the production cost to a certain extent.

[0036] Preferably, the telescopic portion 102 is a prior art, and this application will not elaborate on it here.

[0037] like Figures 1 to 6 As shown, a pair of reinforcing mechanisms 2 are respectively connected to a pair of fixing rods 101 and respectively correspond to a pair of telescopic parts 102. The reinforcing mechanisms 2 are used to strengthen the telescopic parts 102, thereby improving the overall strength of the drive axle, which not only reduces the probability of damage to the drive axle, but also ensures the service life of the drive axle.

[0038] The reinforcement mechanism 2 includes a pair of reinforcement members 201, each wrapped around the telescopic portion 102. Connecting ears 202 are fixedly connected to each end of the reinforcement members 201, and a pair of fastening mechanisms are connected between adjacent pairs of connecting ears 202. The fastening mechanisms secure the pair of reinforcement members 201 to the outside of the telescopic portion 102, reinforcing the telescopic portion 102 and improving the overall strength of the drive axle.

[0039] Preferably, the fastening mechanism in the present application has a better connection effect and is quicker and more convenient to operate than the bolt connection method, so that the staff can use the telescopic part 102 to adjust the overall length of the drive axle.

[0040] like Figures 1 to 6 As shown, the fastening mechanism includes a fastening nail 203, one end of which passes through one of the connecting ears 202 and is inserted into the other connecting ear 202. When the fastening nail 203 is inserted into the cavity 204, the snap ball 206 will snap into the groove 2031, thereby achieving the fixation of the pair of reinforcement members 201, which is convenient for operation.

[0041] Among them, the end of the fastening nail 203 located in the connecting ear 202 is provided with a groove 2031 to facilitate the engagement of the snap ball 206, so as to achieve the fixation of the pair of reinforcement members 201, and utilize the pair of reinforcement members 201 to strengthen the strength of the telescopic part 102.

[0042] In addition, a cavity 204 is provided in the connecting ear 202 , and an extrusion plate 205 is slidably provided in the cavity 204 . The extrusion plate 205 is used to squeeze a plurality of engaging balls 206 so that the engaging balls 206 can be engaged in the groove 2031 .

[0043] Preferably, the shape of the cavity 204 is as follows Figure 5 As shown, the snap-fit ​​ball 206 can be snap-fitted into the groove 2031 .

[0044] Specifically, a relief groove is provided on the extrusion plate 205 , and one end of the fastening nail 203 is disposed in the relief groove so that the engaging ball 206 can be better engaged in the groove 2031 .

[0045] Furthermore, a plurality of engaging balls 206 are disposed within the cavity 204. The engaging balls 206 are located on a side of the extrusion plate 205 near the fastening pins 203. The engaging balls 206 engage with the grooves 2031. By engaging the engaging balls 206 with the grooves 2031, the fastening pins 203 are secured. Furthermore, the fastening pins 203 can be used to secure the pair of reinforcement members 201, thereby enhancing the strength of the telescopic portion 102 through the reinforcement members 201.

[0046] Preferably, the fastening nail 203 and the engaging ball 206 are both made of hard metal, which can ensure the firm engagement between the engaging ball 206 and the fastening nail 203 .

[0047] like Figures 1 to 6As shown, a connecting rope 207 is connected between the extrusion plate 205 and the locking ball 206. When the extrusion plate 205 moves, the locking ball 206 can be driven to move by the connecting rope 207. That is, when the extrusion plate 205 is away from the fastening nail 203, the extrusion plate 205 can pull the locking ball 206 out of the engagement with the groove 2031 through the connecting rope 207, and then the fastening nail 203 can be easily removed from the cavity 204 to separate a pair of reinforcement members 201.

[0048] Among them, an elastic sleeve 208 is provided on the side of the extrusion plate 205 away from the locking ball 206. The elastic sleeve 208 can apply force to the extrusion plate 205, so that the extrusion plate 205 can squeeze a number of locking balls 206 and make the locking balls 206 engage in the groove 2031, thereby achieving the fixation of the fastening nail 203.

[0049] In addition, limiting rings are provided on the inner wall of the cavity 204 and the extrusion plate 205 , and the elastic sleeve 208 is provided between a pair of limiting rings for fixing the elastic sleeve 208 .

[0050] Specifically, a pull rope 209 is connected between an adjacent pair of extrusion plates 205. By pulling the pull rope 209, the pair of extrusion plates 205 can be moved synchronously in the cavity 204, so that several engaging balls 206 can be disengaged from the groove 2031 at the same time, thereby facilitating operation.

[0051] Preferably, the pull rope 209 is made of metal to ensure the overall strength of the pull rope 209 and prevent it from breaking.

[0052] Furthermore, a pair of protective covers 210 are connected to the connecting ear 202. The ends of the drawstring 209 pass through the protective covers 210 and are connected to the extrusion plate 205, respectively, to protect the drawstring 209 and reduce wear on the drawstring 209. A handle cover 211 is attached to the side wall of the drawstring 209 located at the connecting ear 202 to improve comfort when pulling the drawstring 209.

[0053] Preferably, the elastic sleeve 208 , the protective sleeve 210 and the handle cover 211 are all made of rubber.

[0054] like Figures 1 to 6 As shown, both ends of the reinforcement 201 are fixedly connected with an extension part 212. When a pair of reinforcements 201 wrap the telescopic part 102, the extension part 212 can fit with the fixed rod 101, thereby extending the overall length of the reinforcement mechanism 2 to further strengthen the strength of the telescopic part 102, thereby increasing the overall strength of the drive axle, reducing the probability of damage to the drive axle, and thus ensuring the service life of the drive axle.

[0055] In actual use, the overall length of the drive axle can be adjusted using the telescopic portion 102. After the drive axle length is adjusted, the pair of reinforcements 201 are wrapped around the telescopic portion 102, and the fastening nail 203 is inserted from one side of one connecting ear 202 into the cavity 204 in the other connecting ear 202.

[0056] The extrusion plate 205 is subjected to the action of the elastic sleeve 208 to squeeze the plurality of engaging balls 206, so that the engaging balls 206 can be engaged in the groove 2031. Figure 6 In the state shown, the fastening pins 203 are secured, thereby securing the pair of reinforcement members 201. Simultaneously, the extensions 212 engage the sidewalls of the fixing rod 101. The reinforcement members 201 and extensions 212 enhance the overall strength of the telescopic portion 102, thereby improving the overall strength of the drive axle, reducing the likelihood of damage, and thus ensuring the service life of the drive axle.

[0057] When the reinforcement 201 needs to be removed, just pull the pull rope 209. The pull rope 209 will pull a pair of extrusion plates 205. The extrusion plates 205 will pull the locking ball 206 to move through the connecting rope 207, so that the locking ball 206 will be disengaged from the groove 2031. At this time, the fastening nail 203 can be taken out from the cavity 204, and then the pair of reinforcements 201 can be separated.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drive axle structure, characterized in that: include: an axle housing body, wherein a pair of fixing rods are connected to the axle housing body, and the fixing rods are connected to the telescopic portion; A pair of reinforcing mechanisms are respectively connected to a pair of the fixing rods and respectively correspond to a pair of the telescopic parts. The reinforcing mechanisms include a pair of reinforcing members. The pair of reinforcing members are both wrapped around the telescopic parts. Both ends of the reinforcing members are fixedly connected with connecting ears. A pair of fastening mechanisms are connected between adjacent pairs of connecting ears.

2. A drive axle structure according to claim 1, characterized in that: The fastening mechanism includes a fastening nail, one end of which passes through one of the connecting ears and is inserted into the other connecting ear.

3. A drive axle structure according to claim 2, characterized in that: One end of the fastening nail located in the connecting ear is provided with a groove.

4. A drive axle structure according to claim 3, characterized in that: A cavity is provided in the connecting ear, an extrusion plate is slidably provided in the cavity, an avoidance groove is provided on the extrusion plate, and one end of the fastening nail is arranged in the avoidance groove.

5. The drive axle structure according to claim 4, characterized in that: A plurality of engaging balls are arranged in the cavity. The engaging balls are arranged on a side of the extrusion plate close to the fastening nail, and the engaging balls are engaged in the groove.

6. The drive axle structure according to claim 5, characterized in that: A connecting rope is connected between the extrusion plate and the engaging ball.

7. The drive axle structure according to claim 6, characterized in that: An elastic sleeve is provided on one side of the extrusion plate away from the engaging ball, and limiting rings are provided on the inner wall of the cavity and the extrusion plate, and the elastic sleeve is provided between a pair of limiting rings.

8. The drive axle structure according to claim 7, characterized in that: A draw rope is connected between a pair of adjacent extrusion plates, and the draw rope is located on a side wall of the connecting ear and is connected to a handle cover.

9. The drive axle structure according to claim 8, characterized in that: A pair of protective sleeves are connected to the connecting ears, and both ends of the pull rope pass through the pair of protective sleeves and are connected to the extrusion plate.

10. The drive axle structure according to claim 1, characterized in that: Both ends of the reinforcement are fixedly connected with an extension portion, and the extension portion is in contact with the fixing rod.

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