Half axle gear with high applicability

Abstract

The utility model provides a half axle gear with high applicability, belongs to the technical field of differential mechanisms, and solves the problem that an existing half axle gear is low in applicability. The mounting main body is divided into a mounting part and a connecting part, a mounting shaft is arranged on the gear part, a plane part is arranged on the mounting shaft, a first screw hole is formed in the plane part, a second screw hole is formed in the mounting part, a first bolt penetrates through the first screw hole and the second screw hole, an adjusting clamping block is mounted in the connecting part, and a mounting hole is formed in the connecting part; guide holes are formed in the two sides of the mounting hole, second bolts are mounted in the mounting hole and connected with adjusting clamping blocks, guide rods are mounted in the guide holes, hollow holes are formed in the guide rods, oil conveying holes are formed in the adjusting clamping blocks, and springs are mounted between the guide holes and the guide rods. The half axle gear has the advantages that the half axle gear is divided into the gear part, the mounting main body and the shaft rod which are connected through the bolts and the adjusting mechanism, and half axle gears of different specifications can be conveniently combined according to the combination.

Description

Technical Field

[0001] The utility model belongs to the technical field of differentials, relates to a half shaft gear, and particularly relates to a half shaft gear with high applicability. Background Art

[0002] The half shaft gear is a gear in an automotive differential and is conical. There are two half shaft gears installed in an automobile, which are respectively connected to the left and right wheels, enabling the left and right wheels to maintain different rotational speeds when the vehicle turns, so that the vehicle will not roll over when turning due to the same rotational speed of the left and right wheels and different traveled distances.

[0003] The half shaft gear in an automobile is usually made by removing excess metal from a metal blank and has fixed dimensions. However, in actual use, its applicability is low and it cannot be assembled with different axle rods, resulting in poor applicability of the half shaft gear.

[0004] For example, a right half shaft gear of a differential with the application number 202222782998.8 includes a gear body and a shaft sleeve. The shaft sleeve is provided with bevel teeth, and the inner wall of the shaft sleeve is provided with splines. The fillet between the relief groove and the outer circle of the shaft sleeve is transitioned by an R0.5 fillet. A through hole is opened in the relief groove, which is easy to flow into the gear body and the shaft sleeve.

[0005] The above patent facilitates the delivery of lubricating oil to the gear body and the shaft sleeve through the through hole opened in the relief groove, facilitating the lubrication of the gear body and the shaft sleeve. However, the gear is integrally formed and cannot be adapted to different sizes of axle rods, resulting in poor applicability. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a half shaft gear that can be adapted to various tooth shapes and axle rods for the above problems existing in the prior art.

[0007] The utility model can be realized by the following technical solutions: A half shaft gear with high applicability includes an installation main body, a gear part, and an axle rod. External splines are provided on the axle rod. The installation main body is divided into an installation part and a connection part. The gear part is provided with an installation shaft. A flat part is provided on the outer surface of the installation shaft. A first screw hole is opened on the flat part. A second screw hole is opened on the installation part. A first bolt penetrates through the first screw hole and the second screw hole. An adjustment mechanism is installed in the connection part. The adjustment mechanism is an adjustment block, and internal splines are provided on the adjustment block.

[0008] In the above-mentioned half shaft gear with high applicability, an installation hole is opened on the connection part. A third screw hole is opened in the installation hole. A second bolt is installed in the third screw hole, and the second bolt is inserted into the adjustment block.

[0009] In the above-mentioned half-shaft gear with high applicability, a number of small steel balls are inlaid in the adjusting block, and corresponding card slots are provided on the second bolt.

[0010] In the above-mentioned half-shaft gear with high applicability, a guiding hole is respectively arranged on the left and right sides of the mounting hole, a guiding rod is installed in the guiding hole, and the guiding hole penetrates through the mounting body.

[0011] In the above-mentioned half-shaft gear with high applicability, a hollow hole is provided in the guiding rod, and an oil delivery hole is arranged on the adjusting block.

[0012] In the above-mentioned half-shaft gear with high applicability, a fixing plate is arranged in the guiding hole, a limiting plate is arranged on the guiding rod, and a spring is arranged between the limiting plate and the fixing plate.

[0013] In the above-mentioned half-shaft gear with high applicability, a through hole is provided between the mounting part and the connecting part, a guiding rod is arranged on the mounting shaft, and the guiding rod passes through the through hole.

[0014] In the above-mentioned half-shaft gear with high applicability, a limiting hole is provided on the shaft rod, and the guiding rod is inserted into the limiting hole.

[0015] In the above-mentioned half-shaft gear with high applicability, a groove is provided on the guiding hole, a sealing cap is installed in the groove, and an annular protrusion is arranged on the sealing cap.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: an adjusting mechanism is provided, which can change the minimum diameter in the connecting part of the mounting body according to the diameter of the shaft rod, facilitating the adaptation to shaft rods of different sizes and improving the applicability of the half-shaft gear; the gear part and the mounting shaft body are installed by bolts, which is convenient for replacing gears of different specifications and improving the applicability of the half-shaft gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the half-shaft gear with high applicability;

[0018] Figure 2 is a cross-sectional view of the half-shaft gear with high applicability;

[0019] Figure 3 is Figure 2 the cross-sectional view of the circle A in

[0020] Figure 4 is a perspective view of the mounting body of the half-shaft gear with high applicability;

[0021] Figure 5 is a perspective view of the shaft rod of the half-shaft gear with high applicability;

[0022] Figure 6It is a cross-sectional view of the adjusting block of the differential side gear with high applicability;

[0023] Figure 7 It is a side view of the gear part of the differential side gear with high applicability;

[0024] Among them, 1. Installation main body; 11. Installation part; 111. Second screw hole; 12. Connection part; 121. Installation hole; 121a. Third screw hole; 122. Guide hole; 122a. Fixed plate; 122b. Groove; 13. Through hole; 2. Gear part; 21. Installation shaft; 211. Flat part; 211a. First screw hole; 212. Guide rod; 3. Shaft rod; 31. External spline; 32. Limit hole; 4. First bolt; 5. Adjusting mechanism; 51. Adjusting block; 511. Internal spline; 512. Small steel ball; 513. Oil delivery hole; 6. Second bolt; 61. Card slot; 7. Guide rod; 71. Hollow hole; 72. Limit plate; 8. Spring; 9. Sealing cap; 91. Annular protrusion. Specific implementation mode

[0025] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0026] The present invention can be realized through the following embodiments: A differential side gear with high applicability includes an installation main body 1, a gear part 2 and a shaft rod 3. An external spline 31 is provided on the shaft rod 3. The installation main body 1 is divided into an installation part 11 and a connection part 12. An installation shaft 21 is provided on the installation part 11. The gear part 2 is provided with an installation shaft 21. A flat part 211 is provided on the outer surface of the installation shaft 21. A first screw hole 211a is provided on the flat part 211. A second screw hole 111 is provided on the installation shaft 21. A first bolt 4 penetrates through the first screw hole 211a and the second screw hole 111. An adjusting mechanism 5 is installed in the connection part 12. The adjusting mechanism 5 is an adjusting block 51. An internal spline 511 is provided on the adjusting block 51.

[0027] The gear part 2 is provided with an installation shaft 21 connected to the installation main body 1. The connection is completed by the first bolt 4 penetrating through the first screw hole 211a and the second screw hole 111, preventing the axial sliding of the gear part 2 and facilitating the replacement of gears of different sizes at the same time. The setting of the flat part 211 facilitates the fitting of the installation shaft 21 and the installation part 11, plays a role in transmitting torque, reduces the torque applied to the first bolt 4, and prevents the first bolt 4 from deforming. The adjusting mechanism 5 is used to engage the shaft rod 3 through the internal spline 511 on the adjusting block 51 to complete the installation of shaft rods 3 of different sizes and the installation main body 1.

[0028] Such as Figures 1 to 4As shown, the connecting part 12 is provided with a mounting hole 121, and a third screw hole 121a is provided in the mounting hole 121. A second bolt 6 is installed in the third screw hole 121a, and the second bolt 6 is inserted into the adjusting block 51. The depth of the third screw hole 121a is less than that of the mounting hole 121, so that there is a moving space when the second bolt 6 rotates. The position of the adjusting block 51 can be adjusted by rotating the second bolt 6 to facilitate adaptation to shaft rods 3 of different sizes.

[0029] As Figure 2 , Figure 3 and Figure 6 shown, a number of small steel balls 512 are embedded in the adjusting block 51, and corresponding card slots 61 are provided on the second bolt 6. The small steel balls 512 are stuck in the card slots 61, so that the second bolt 6 cannot break away from the adjusting block 51, preventing the adjusting block 51 from accidentally breaking away from the second bolt 6; at the same time, the second bolt 6 can rotate relative to the adjusting block 51, facilitating the adjustment of the position of the adjusting block 51 when the second bolt 6 rotates.

[0030] As Figures 1 to 4 shown, a guiding hole 122 is provided on each of the left and right sides of the mounting hole 121, and a guiding rod 7 is installed in the guiding hole 122. The guiding hole 122 penetrates through the mounting body 1. The guiding rod 7 is connected to the adjusting block 51 and is used to guide the moving direction of the adjusting block 51. A plurality of guiding rods 7 can prevent the second bolt 6 from driving the adjusting block 51 to move.

[0031] As Figure 2 , Figure 3 and Figure 6 shown, a hollow hole 71 is provided in the guiding rod 7, and an oil delivery hole 513 is provided on the adjusting block 51. The provision of the hollow hole 71 and the oil delivery hole 513 facilitates the delivery of lubricating oil to the contact surface between the adjusting block 51 and the shaft rod 3, for lubricating the meshing surface of the external spline 31 and the internal spline 511, preventing a gap from existing on the contact surface between the shaft rod 3 and the adjusting block 51 due to wear of the two, and helping the shaft rod 3 and the adjusting block 51 to dissipate heat.

[0032] As Figure 2 and Figure 3 shown, a fixing plate 122a is provided in the guiding hole 122, a limiting plate 72 is provided on the guiding rod 7, and a spring 8 is provided between the limiting plate 72 and the fixing plate 122a. The spring 8 is used to absorb the impact existing during the operation of the half shaft gear and improve stability.

[0033] As Figure 2 , Figure 4 and Figure 7As shown, a through hole 13 is provided between the installation part 11 and the connection part 12. A guide rod 212 is provided on the installation shaft 21, and the guide rod 212 passes through the through hole 13. The guide rod 212 passes through the through hole 13 and enters the connection part 12, facilitating the positioning and installation of the gear part 2. At the same time, it increases the contact area between the gear part 2 and the installation main body 1, and disperses the torque transmitted by the gear part 2.

[0034] As Figure 2 and Figure 5 shown, a limit hole 32 is provided on the shaft rod 3, and the guide rod 212 is inserted into the limit hole 32. Inserting the guide rod 212 into the limit hole 32 facilitates the installation and positioning of the shaft rod 3, so that when adjusting the position of the adjusting block 51, the position of the shaft rod 3 will not change, facilitating the installation of the shaft rod 3.

[0035] As Figures 1 to 4 shown, a groove 122b is provided on the guide hole 122, and a sealing cap 9 is installed in the groove 122b. An annular protrusion is provided on the sealing cap 9. Installing the sealing cap 9 in the groove 122b prevents impurities from entering the contact surface between the external spline 31 and the internal spline 511 through the hollow hole 71 and the oil delivery hole 513, resulting in wear of the external spline 31 and the internal spline 511 and reducing the service life of the shaft rod 3 and the adjusting block 51; the setting of the annular protrusion makes the contact surface between the sealing cap 9 and the groove 122b more tortuous, reducing the possibility of impurities entering from the contact surface between the sealing cap 9 and the groove 122b and improving the sealing performance.

[0036] The working principle of the present utility model: Insert the guide rod 212 on the gear part 2 from the through hole 13, so that the installation shaft 21 of the gear part 2 and the installation part 11 of the installation main body 1 are closely attached, and complete the fixation through the bolt one 4 passing through the screw hole one 211a and the screw hole two 111; insert the guide rod 212 into the limit hole 32 of the shaft rod 3, and rotate the bolt two 6 to make the adjusting block 51 move towards the shaft rod 3 to complete the engagement of the external spline 31 and the internal spline 511, and then complete the installation of the shaft rod 3 and the installation main body 1; uncover the sealing cap 9, and lubricating oil can be conveyed to the internal spline 511 and the external spline 31 through the hollow hole 71 of the guide rod 7 and the oil delivery hole 513 of the adjusting block 51.

[0037] The specific embodiments described in this article are only examples to illustrate the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0038] Although various terms are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A side gear with high applicability, comprising a mounting body (1), a gear portion (2) and a shaft (3), wherein the shaft (3) is provided with an external spline (31), characterized in that: The mounting body (1) is divided into a mounting portion (11) and a connecting portion (12); the gear portion (2) is provided with a mounting shaft (21); a plane portion (211) is provided on the outer surface of the mounting shaft (21); a screw hole (211a) is provided on the plane portion (211); a screw hole (111) is provided on the mounting portion (11); a bolt (4) is passed through the screw hole (211a) and the screw hole (111); an adjusting mechanism (5) is installed in the connecting portion (12); the adjusting mechanism (5) is an adjusting block (51); and an internal spline (511) is provided on the adjusting block (51).

2. A side gear with high applicability according to claim 1, characterized in that: The connecting portion (12) is provided with a mounting hole (121), a screw hole (121a) is provided in the mounting hole (121), a bolt (6) is installed in the screw hole (121a), and the bolt (6) is inserted into the adjusting block (51).

3. A side gear with high applicability according to claim 2, characterized in that: A plurality of small steel balls (512) are embedded in the adjusting block (51), and a corresponding slot (61) is formed on the second bolt (6).

4. The side gear with high applicability according to claim 2, characterized in that: A guide hole (122) is respectively arranged on the left and right sides of the installation hole (121), a guide rod (7) is installed in the guide hole (122), and the guide hole (122) passes through the installation body (1).

5. A side gear with high applicability according to claim 4, characterized in that: The guide rod (7) is provided with a hollow hole (71), and the adjustment block (51) is provided with an oil delivery hole (513).

6. A side gear with high applicability according to claim 4, characterized in that: A fixing plate (122a) is arranged in the guide hole (122), a limiting plate (72) is arranged on the guide rod (7), and a spring (8) is arranged between the limiting plate (72) and the fixing plate (122a).

7. The side gear with high applicability according to claim 1, characterized in that: A through hole (13) is provided between the mounting portion (11) and the connecting portion (12); a guide rod (212) is provided on the mounting shaft (21); and the guide rod (212) passes through the through hole (13).

8. The side gear with high applicability according to claim 1, characterized in that: The shaft rod (3) is provided with a limiting hole (32), and a guide rod (212) is inserted into the limiting hole (32).

9. The side gear with high applicability according to claim 4, characterized in that: The guide hole (122) is provided with a groove (122b), a sealing cap (9) is installed in the groove (122b), and an annular protrusion (91) is provided on the sealing cap (9).

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