A bevel gear set suitable for an agricultural two-way right-angle gearbox

Abstract

The utility model relates to the technical field of bevel gear box, concretely to a bevel gear set suitable for agricultural bidirectional bevel gearbox, including gear box, the inside of gear box is equipped with driving bevel gear, and the output spline shaft is perpendicular to driving bevel gear and is supported on the gear box through bearing, is equipped with two passive bevel gears on the output spline shaft, and passive bevel gears are arranged respectively at both ends of driving bevel gear, all be equipped with fork on passive bevel gear, and fork is all arranged on fork shaft, and fixed link is fixed between the upper end of fork, and fork and link make two passive bevel gears only one mesh with driving bevel gear simultaneously. Its advantages: first, can realize bidirectional rotation through adjusting the mesh of passive bevel gear set and driving bevel gear, need not increase gear or gear set outside; Two is simple structure and use, and is equipped with self -locking mechanism, avoids falling off in the work.

Description

Technical Field

[0001] This utility model relates to the field of right-angle gearbox technology, specifically a bevel gear set suitable for agricultural bidirectional right-angle gearboxes. Background Technology

[0002] A right-angle gearbox is a drive structure that differs from ordinary drive motors. A right-angle gearbox can drive in multiple directions. The internal gearbox uses a gear meshing transmission structure to transmit the transmission motion in one direction to other vertical directions, thus forming a multi-directional drive transmission.

[0003] With the continuous installation and use of right-angle gearboxes, the following problems have been discovered during use: When the power source is an engine, the engine's steering is fixed and cannot be changed. If both forward and reverse motion are required at the same time, the right-angle gearbox cannot achieve the function of simultaneous steering. It is necessary to add one or more sets of gears externally to achieve this. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bevel gear set suitable for agricultural bidirectional right-angle gearbox, comprising a gearbox 3, a driving bevel gear 13 disposed inside the gearbox 3, and an output spline shaft 1 perpendicular to the driving bevel gear 13 and supported on the gearbox 3 by bearings, characterized in that: two driven bevel gears 12 are disposed on the output spline shaft 1, the driven bevel gears 12 are respectively disposed at both ends of the driving bevel gear 13, each driven bevel gear 12 is provided with a shift fork 5, the shift forks 5 are all disposed on a shift fork shaft 2, and a connecting rod 6 is fixed between the upper ends of the shift forks 5, the shift forks 5 and the connecting rod 6 cause only one of the two driven bevel gears 12 to mesh with the driving bevel gear 13 at the same time.

[0005] Furthermore, the shift fork 5 is provided with a mounting block 11, which passes through the shift fork shaft 2 and contains a steel ball 10, a compression spring 9 and a locking screw 8. The steel ball 10 contacts the shift fork shaft 2, the compression spring 9 is located above the steel ball 10, and the locking screw 8 is located above the compression spring 9 and can be adjusted up and down.

[0006] Furthermore, the shift fork shaft 2 is provided with a positioning groove 4 that cooperates with the steel ball 10, and the distance between the two positioning grooves 4 on the same side is more than three times the tooth thickness of the passive bevel gear 12.

[0007] Furthermore, a sliding groove 7 is provided above the gearbox 3.

[0008] This utility model has the following advantages: First, it can achieve bidirectional rotation by adjusting the meshing of the passive bevel gear group and the active bevel gear, without the need to add external gears or gear groups; second, it has a simple and easy-to-use structure, and is equipped with a self-locking mechanism to prevent it from falling off during operation. Attached Figure Description

[0009] Figure 1 This is the front view of this utility model.

[0010] In the diagram: 1. Output spline shaft, 2. Shift fork shaft, 3. Gearbox, 4. Positioning groove, 5. Shift fork, 6. Connecting rod, 7. Sliding groove, 8. Locking screw, 9. Compression spring, 10. Steel ball, 11. Mounting block, 12. Passive bevel gear, 13. Active bevel gear. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figure 1 The present invention provides a technical solution: including a gearbox 3, a drive bevel gear 13 is provided inside the gearbox 3, and an output spline shaft 1 is perpendicular to the drive bevel gear 13 and supported on the gearbox 3 by bearings.

[0013] Two driven bevel gears 12 are provided on the output spline shaft 1. The driven bevel gears 12 are respectively located at both ends of the driving bevel gear 13, and only one of the two driven bevel gears 12 can mesh with the driving bevel gear 13 at any given time. Therefore, each driven bevel gear 12 is provided with a shift fork 5. The shift fork 5 is provided with a mounting block 11. The mounting block 11 passes through the shift fork shaft 2 and contains a steel ball 10, a compression spring 9, and a locking screw 8. The steel ball 10 contacts the shift fork shaft 2. The compression spring 9 is located above the steel ball 10. The locking screw 8 is located above the compression spring 9 and can be adjusted up and down. The shift fork shaft 2 is provided with a positioning groove 4 that cooperates with the steel ball 10. The distance between the two positioning grooves 4 on the same side is greater than three times the tooth thickness of the driven bevel gear 12. Adjusting the locking screw 8 adjusts the pressure of the compression spring 9 to achieve the pressure between the steel ball 10 and the positioning groove 4 on the shift fork shaft 2.

[0014] A connecting rod 6 is fixed between the upper ends of the two shift forks 5, so that the two passive bevel gears 12 move simultaneously. Since the distance between the two positioning grooves 4 on the same side is more than three times the tooth thickness of the passive bevel gear 12, when the shift fork 5 is moved, it is avoided that the two passive bevel gears 12 mesh with the active bevel gear 13 at the same time during the movement.

[0015] The gearbox 3 is provided with a sliding groove 7 for the avoidance fork 5.

[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bevel gear set suitable for agricultural bidirectional right-angle gearboxes, comprising a gearbox (3), a drive bevel gear (13) disposed within the gearbox (3), and an output spline shaft (1) perpendicular to the drive bevel gear (13) and supported on the gearbox (3) by bearings, characterized in that: The output spline shaft (1) is provided with two passive bevel gears (12). The passive bevel gears (12) are respectively located at both ends of the active bevel gear (13). Each passive bevel gear (12) is provided with a shift fork (5). The shift forks (5) are all located on the shift fork shaft (2). A connecting rod (6) is fixed between the upper ends of the shift forks (5). The shift forks (5) and the connecting rod (6) make only one of the two passive bevel gears (12) mesh with the active bevel gear (13) at the same time.

2. A bevel gear set suitable for agricultural bidirectional right-angle gearboxes according to claim 1, characterized in that: The shift fork (5) is provided with a mounting block (11), which passes through the shift fork shaft (2) and has a steel ball (10), a compression spring (9) and a locking screw (8) inside. The steel ball (10) is in contact with the shift fork shaft (2), the compression spring (9) is located above the steel ball (10), and the locking screw (8) is located above the compression spring (9) and can be adjusted up and down.

3. A bevel gear set suitable for agricultural bidirectional right-angle gearboxes according to claim 2, characterized in that: The shift fork shaft (2) is provided with a positioning groove (4) that cooperates with the steel ball (10), and the distance between the two positioning grooves (4) on the same side is greater than three times the tooth thickness of the passive bevel gear (12).

4. A bevel gear set suitable for agricultural bidirectional right-angle gearboxes according to claim 1, characterized in that: The gearbox (3) is provided with a sliding groove (7) on its upper part.

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