Shifting fork of rear axle differential mechanism

Abstract

The utility model provides a rear axle differential mechanism shifting fork, and belongs to the technical field of transmission parts. The rear axle differential mechanism shifting fork solves the problem that an existing shifting fork is not timely in response and comprises a differential mechanism body, a transfer case is arranged on one side of the differential mechanism body, a control gear is arranged on the transfer case, a driven rack is arranged on the control gear, a clamping groove is formed in the driven rack, and a shifting fork body is arranged on the clamping groove. Locking cavities which are oppositely arranged are formed in the clamping groove and the shifting fork, an extrusion bolt is arranged between the locking cavities, an output bevel gear is arranged on the differential mechanism body, a transmission gear shaft is arranged on one side of the output bevel gear, and a connecting shaft sleeve is arranged on the transmission gear shaft. The differential mechanism has the advantages of being easy and convenient to disassemble and assemble and rapid in response.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission components and relates to a shift fork, in particular to a rear axle differential shift fork. Background Art

[0002] The differential fork is a key component of the differential in the automobile drive system. Its main function is to control the opening and closing state of the differential, and then adjust the speed difference of the wheels on both sides to adapt to different driving conditions.

[0003] The traditional shift fork connects the rack and the shift fork through a connecting shaft, but there will be a gap when the shift fork is engaged with the rack. When the rack drives the shift fork, it will first pass through a period of idle travel, resulting in an untimely response of the differential. Summary of the invention

[0004] The purpose of the utility model is to provide a rear axle differential shift fork with timely response in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a rear axle differential fork, characterized in that it includes a differential body, a transfer case is provided on one side of the differential body, a control gear is provided on the transfer case, a passive rack is provided on the control gear, and a clamping groove is provided on the passive rack, a shift fork is provided on the clamping groove, locking cavities arranged opposite to each other are provided on the clamping groove and the shift fork, an extrusion bolt is provided between the locking cavities, an output bevel tooth is provided on the differential body, a transmission gear shaft is provided on one side of the output bevel tooth, and a connecting shaft sleeve is provided on the transmission gear shaft.

[0006] In the above-mentioned rear axle differential shift fork, the passive rack and the shift fork are provided with a penetrating guide hole, and a guide rod is provided in the guide hole.

[0007] In the above-mentioned rear axle differential fork, a mounting housing is provided on the differential body, and an internal spline for connecting and transmitting with the connecting shaft sleeve is provided on the mounting housing.

[0008] Compared with the prior art, the rear axle differential fork eliminates the gap between the passive rack and the fork by squeezing the bolts, reduces the delay when the transfer case starts, and makes the response smoother. The internal splines on the housing increase the contact area, making the connecting sleeve transmission more stable and able to transmit more power. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the rear axle differential fork.

[0010] Figure 2 It is a structural schematic diagram of a half-section of the rear axle differential fork.

[0011] Figure 3 It is a structural schematic diagram of a partial enlargement of the rear axle differential fork.

[0012] In the figure, 1. snap-fit ​​groove; 2. transfer case; 3. shift fork; 4. differential body; 5. output bevel gear; 6. mounting housing; 7. internal spline; 8. connecting sleeve; 9. transmission gear shaft; 10. extrusion bolt; 11. control gear; 12. passive rack; 13. guide rod; 14. guide hole; 15. locking chamber. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 , 2 As shown in Figure 3, the rear axle differential fork 3 includes a differential body 4, a transfer case 2 is provided on one side of the differential body 4, a control gear 11 is provided on the transfer case 2, a passive rack 12 is provided on the control gear 11, and a clamping groove 1 is provided on the passive rack 12, and a shift fork 3 is provided on the clamping groove 1, and locking cavities 15 arranged opposite to each other are opened on the clamping groove 1 and the shift fork 3, and an extrusion bolt 10 is provided between the locking cavity 15, an output bevel tooth 5 is provided on the differential body 4, a transmission gear shaft 9 is provided on one side of the output bevel tooth 5, and a connecting shaft sleeve 8 is provided on the transmission gear shaft 9. During installation, the shift fork 3 is set in the clamping groove 1, the locking cavity 15 is docked, and then the extrusion bolt 10 is installed, and the gap between the passive rack 12 and the shift fork 3 is eliminated by installing the extrusion bolt 10.

[0015] Preferably, a guide hole 14 is provided on the passive rack 12 and the shift fork 3 , and a guide rod 13 is provided in the guide hole 14 .

[0016] Preferably, a mounting housing 6 is provided on the differential body 4, and an internal spline 7 connected to the connecting sleeve 8 for transmission is provided on the mounting housing 6. The internal spline 7 on the mounting housing 6 makes the power transmission more stable.

[0017] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0018] Although the present invention uses more terms such as the engaging groove 1, the transfer case 2, the shift fork 3, the differential body 4, the output bevel gear 5, the mounting housing 6, the internal spline 7, the connecting sleeve 8, the transmission gear shaft 9, the extrusion bolt 10, the control gear 11, the passive rack 12, the guide rod 13, the guide hole 14, the locking cavity 15, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A rear axle differential fork, characterized in that: The invention comprises a differential body (4), a transfer case (2) being provided on one side of the differential body (4), a control gear (11) being provided on the transfer case (2), a passive rack (12) being provided on the control gear (11), a clamping groove (1) being provided on the passive rack (12), a shift fork (3) being provided on the clamping groove (1), locking cavities (15) being provided opposite to each other on the clamping groove (1) and the shift fork (3), an extrusion bolt (10) being provided between the locking cavities (15), an output bevel gear (5) being provided on the differential body (4), a transmission gear shaft (9) being provided on one side of the output bevel gear (5), and a connecting shaft sleeve (8) being provided on the transmission gear shaft (9).

2. A rear axle differential fork according to claim 1, characterized in that: The passive rack (12) and the shift fork (3) are provided with a guide hole (14) penetrating therethrough, and a guide rod (13) is provided in the guide hole (14).

3. The rear axle differential fork according to claim 1, characterized in that: The differential body (4) is provided with a mounting housing (6), and the mounting housing (6) is provided with an internal spline (7) connected to the connecting shaft sleeve (8) for transmission.

Images