Wear-resistant differential spider

Abstract

The utility model provides a wear-resistant differential spider. The wear-resistant differential spider comprises a spider body, the four rotating joints are rotationally arranged at the four end parts of the cross shaft body respectively; a sealing cover plate is embedded in the center of the top face of the cross shaft body, an assembling groove corresponding to the sealing cover plate is formed in the middle of the cross shaft body, a check valve with an exhaust switch is assembled in the assembling groove, a sliding assisting structure is arranged between the cross shaft body and the rotating connector, friction force is reduced, meanwhile, the cross shaft body is effectively prevented from being abraded, and the service life of the cross shaft is prolonged. A worker can input gas through a check valve with an exhaust switch, the gas enters an inflation cavity through a gas flow pipeline, an elastic positioning ring deforms under the action of gas pressure, the contact acting force of a rolling steel ball and an annular sliding assisting groove is improved, and therefore the rotation stability of the rotating connector is adjusted; exhaust and pressure reduction can be performed through an exhaust switch on the check valve, and the operation is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields especially relates to a wear -resisting type differential mechanism cross axle. BACKGROUND

[0002] The differential mechanism cross axle is the key component in the automobile differential mechanism, is mainly used for connecting differential mechanism shell and planetary gear, transmits power and allows left and right wheels to rotate at different speeds. It ensures that the wheels can rotate smoothly when the vehicle turns or drives on uneven road, avoiding skidding or wear.

[0003] The bearing on the existing differential mechanism cross axle is closely sleeved with the axle neck of the differential mechanism cross axle in the rotating process, leading to the fact that the bearing is easy to wear the outer wall of the differential mechanism cross axle body under long-term rotation. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving above -mentioned problem and provides a wear -resisting type differential mechanism cross axle.

[0005] The utility model discloses a technical scheme is like this:

[0006] The utility model provides a wear -resisting type differential mechanism cross axle, and the structure includes cross axle body,

[0007] Rotary joint is equipped with four, and is respectively rotated and arranged in four end portions of cross axle body, the top surface center of cross axle body is embedded with closed cover plate, the middle part in cross axle body is equipped with the assembly groove corresponding with closed cover plate, the assembly groove is assembled with the check valve with exhaust switch, the center of the end portion of cross axle body is equipped with the positioning shaft that is positioned to rotary joint, the edge of the end portion of cross axle body is equipped with annular slip groove, the opening of annular slip groove is closed with elastic positioning ring, a plurality of rolling steel ball that is in contact with rotary joint is rotated and arranged on elastic positioning ring, and the bottom surface between annular slip groove and elastic positioning ring is equipped with inflation chamber, and the spring that is supported reset to elastic positioning ring is arranged in this inflation chamber, and the gas flow pipeline that is with gas input inflation chamber is connected to check valve output end;

[0008] Rotary joint end face towards cross axle body is equipped with annular slide rail sliding connection with rolling steel ball.

[0009] In the above technical scheme, the slip -assisting structure is arranged between cross axle body and rotary joint, reduces the friction force, effectively prevents cross axle body wear and tear, and staff can input gas through the check valve with exhaust switch, gas enters inflation chamber through gas flow pipeline, and elastic positioning ring deforms under the action of gas pressure, improves the contact force of rolling steel ball and annular slip groove, to adjust the rotation stability of rotary joint, if rotation is limited, can be exhausted through the exhaust switch on check valve, and the operation is simple.

[0010] In one embodiment, the assembly groove top inner wall is provided with a hinge seat for closing and opening the cover plate, and the hinge seat facilitates opening and closing.

[0011] In one embodiment, the edge of the closing cover plate is provided with a buckle groove for facilitating opening, and the buckle groove facilitates opening.

[0012] In one embodiment, a plurality of rolling steel ball annular arrays are arranged, and the rolling steel balls reduce friction.

[0013] In one embodiment, the rotating joint is provided with a rotating positioning groove corresponding to the positioning shaft, and the rotating positioning groove is connected and positioned.

[0014] In one embodiment, the exhaust port of the check valve with an exhaust switch and the input end are both towards the closing cover plate, and the technical scheme facilitates gas input and exhaust.

[0015] In one embodiment, the annular slide rail inner wall has an arc to wrap and position the rolling steel balls, and the technical scheme improves the positioning effect of the rolling steel balls.

[0016] In one embodiment, the rotating joint is a bearing, and the technical scheme reduces friction.

[0017] The advantages or beneficial effects of the above technical scheme at least include:

[0018] The utility model discloses a wear -resisting type differential mechanism cross axle adopts the cross axle body and rotating joint between the structure of helping to slip, reduces the friction, prevents the cross axle body wear -and -tear effectively simultaneously, and the staff can be in the check valve with exhaust switch input gas, and the gas passes through the airflow pipeline and enters the inflation chamber, and the elastic positioning ring is deformed under the action of air pressure, improves the contact force of rolling steel ball and annular slip groove, adjusts the rotation stability of rotating joint, if causes the rotation limitation, can pass through the exhaust switch on the check valve and exhausts and reduces pressure, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings illustrate exemplary embodiments of the present utility model and together with the general description given above, and explained below, serve to explain the principles of the present utility model. These drawings are included to provide a further understanding of the present utility model and are incorporated in and constitute a part of this specification.

[0020] Figure 1 It is a structural schematic view of the utility model discloses a wear -resisting type differential mechanism cross axle;

[0021] Figure 2The utility model discloses a kind of wear-resistant differential cross axle's overhead structure schematic diagram;

[0022] Figure 3 The utility model discloses a kind of wear-resistant differential cross axle's overhead section structure schematic diagram;

[0023] Figure 4 For Figure 3 The enlarged section structure schematic diagram of A. DETAILED DESCRIPTION

[0024] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the application are shown in the drawings, it is understood that the application can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein, but rather should be interpreted in the context of what is claimed. It should be understood that the drawings and embodiments of the present application are only for illustrative purposes and are not intended to limit the scope of protection of the present application.

[0025] It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] It should be understood that the term "comprising" and its variants used herein are open-ended, i.e., "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units or their mutual dependency.

[0027] It should be noted that the modification of "one" or "several" mentioned in the present application is illustrative and not limiting, and those skilled in the art should understand that, unless otherwise explicitly stated in the context, it should be understood as "one or more".

[0028] The names of messages or information exchanged between multiple devices in the embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of these messages or information.

[0029] Referring to Figures 1-4 A wear-resistant differential cross axle, the structure includes cross axle body 1;

[0030] The rotating joint 2 is provided with four, and is respectively rotatingly provided at the four end portions of the cross shaft body 1; the center of the top surface of the cross shaft body 1 is embedded with a closing cover plate 11, the middle portion of the cross shaft body 1 is internally provided with a corresponding assembly groove 12 of the closing cover plate 11, the assembly groove 12 is internally assembled with a check valve 13 with an exhaust switch, the center of the end portion of the cross shaft body 1 is provided with a positioning shaft 14 for positioning the rotating joint 2, the edge of the end portion of the cross shaft body 1 is provided with an annular slip assisting groove 15, the opening of the annular slip assisting groove 15 is closed with an elastic positioning ring 16, a plurality of rolling steel balls 17 in contact with the rotating joint 2 are rotatingly provided on the elastic positioning ring 16, a gas charging cavity is provided between the elastic positioning ring 16 and the bottom surface of the annular slip assisting groove 15, a spring 18 for supporting and resetting the elastic positioning ring 16 is internally provided in the gas charging cavity, the output end of the check valve 13 is connected with a gas flow pipeline 19 for inputting gas into the gas charging cavity;

[0031] The end surface of the rotating joint 2 towards the cross shaft body 1 is provided with an annular sliding rail 21 in sliding connection with the rolling steel balls 17.

[0032] In the above technical solution, the slip assisting structure is provided between the cross shaft body 1 and the rotating joint 2, which reduces the friction and effectively prevents the cross shaft body 1 from being worn, and the staff can input gas through the check valve 13 with an exhaust switch, the gas enters the gas charging cavity through the gas flow pipeline 19, the elastic positioning ring 16 deforms under the action of gas pressure, the contact force between the rolling steel balls 17 and the annular slip assisting groove 15 is improved, and the rotation stability of the rotating joint 2 is adjusted, if rotation is limited, the exhaust switch on the check valve 13 can be used for exhaust and pressure reduction, and the operation is simple.

[0033] In one of the embodiments, the top inner wall of the assembly groove 12 is provided with a hinge seat for opening and closing the closing cover plate 11, in this technical solution, the hinge seat is used for facilitating opening and closing.

[0034] In one of the embodiments, the edge of the closing cover plate 11 is provided with a buckle groove for facilitating opening, in this technical solution, the buckle groove is used for facilitating opening.

[0035] In one of the embodiments, a plurality of rolling steel balls 17 are arranged in an annular array, in this technical solution, the rolling steel balls 17 are used for reducing friction.

[0036] In one of the embodiments, the rotating joint 2 is provided with a rotating positioning groove corresponding to the positioning shaft 14, in this technical solution, the rotating positioning groove is used for connection and positioning.

[0037] In one of the embodiments, the exhaust port and the input end of the check valve 13 with an exhaust switch are both towards the closing cover plate 11, in this technical solution, gas input and exhaust are facilitated.

[0038] In one of the embodiments, the inner wall of the annular slide rail 21 has an arc to wrap and position the rolling steel ball 17, which improves the positioning effect of the rolling steel ball 17.

[0039] In one of the embodiments, the rotating joint 2 is specifically a bearing, which reduces the friction force.

[0040] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation of the present application.

[0041] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present application, and are not intended to limit the scope of the present application. Based on the above disclosure, other changes or modifications can be made by those skilled in the art, and these changes or modifications are still within the scope of the present application.

Claims

1. A wear-resistant type differential spider, characterized by: The structure comprises a cross shaft body (1); Rotary joints (2) are provided with four and are respectively rotatably provided at four end portions of the cross shaft body (1); a closing cover plate (11) is embedded in the center of the top surface of the cross shaft body (1), a fitting groove (12) corresponding to the closing cover plate (11) is arranged in the middle of the cross shaft body (1), a check valve (13) with an exhaust switch is fitted in the fitting groove (12), a positioning shaft (14) for positioning the rotary joint (2) is arranged in the center of the end portion of the cross shaft body (1), an annular slip assisting groove (15) is arranged at the edge of the end portion of the cross shaft body (1), the annular slip assisting groove (15) is closed by an elastic positioning ring (16) at the opening, a plurality of rolling steel balls (17) in contact with the rotary joint (2) are rotatably arranged on the elastic positioning ring (16), an inflation chamber is arranged between the elastic positioning ring (16) and the bottom surface of the annular slip assisting groove (15), a spring (18) for supporting and resetting the elastic positioning ring (16) is arranged in the inflation chamber, and a gas flow pipeline (19) for inputting gas into the inflation chamber is connected to the output end of the check valve (13). The rotary joint (2) is provided with an annular sliding rail (21) in sliding connection with the rolling steel ball (17) on the end surface facing the cross shaft body (1).

2. The wear-resistant type differential spider of claim 1, wherein: A hinge seat for opening and closing of the closing cover plate (11) is arranged on the inner wall of the top portion of the fitting groove (12).

3. The wear-resistant type differential spider of claim 2, wherein: A buckle groove for facilitating opening is arranged at the edge of the closing cover plate (11).

4. The wear-resistant type differential spider of claim 1, wherein: A plurality of rolling steel balls (17) are arranged in an annular array.

5. The wear-resistant type differential spider of claim 1, wherein: A rotary positioning groove corresponding to the positioning shaft (14) is arranged on the rotary joint (2).

6. The wear-resistant type differential spider of claim 1, wherein: The exhaust port and the input end of the check valve (13) with an exhaust switch are both towards the closing cover plate (11).

7. The wear-resistant type differential spider of claim 1, wherein: The inner wall of the annular sliding rail (21) has a curvature to wrap and position the rolling steel ball (17).

8. The wear-resistant type differential spider of claim 1, wherein: The rotary joint (2) is specifically a bearing.

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