Gear shaft bearing assembled with one ball and one column

Abstract

The utility model discloses a shaft bearing assembled with a ball and a cylindrical gear, which belongs to the technical field of gearboxes and comprises a main shell, a cylindrical bearing is arranged in the main shell, a small clamp spring is arranged at the bottom end of the cylindrical bearing, a gear shaft is arranged in the cylindrical bearing, disc teeth are arranged on the surface of the gear shaft, and a front shell is arranged at the upper end of the main shell. A ball bearing is arranged in the front shell, a large clamping spring is arranged at the upper end of the ball bearing, a bearing pressing plate is arranged at the bottom end of the ball bearing, a plurality of bolts are connected into the bearing pressing plate, and a sealing cover is arranged on the surface of the upper end of the front shell. The assembly tool is matched with the front shell for installation, the tool penetrates through the front shell to be connected with the middle shaft, the tool is operated to enable the middle shaft and the bearing to start interference assembly, when the middle shaft and the bearing finish interference assembly, the main shell and the front shell also finish box closing, the problem that a one-ball one-column bearing scheme is difficult to assemble is solved, and the assembly efficiency is improved. And a high-efficiency assembly mode is realized.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox technology, specifically relating to a ball-and-column gear shaft bearing. Background Technology

[0002] A transmission, also known as a gearbox, is a mechanism used to change the speed and torque from an engine. It can change the transmission ratio between the output shaft and the input shaft in a fixed or progressively increasing manner. A transmission consists of a gear-shifting mechanism and a control mechanism; some cars also have a power take-off (PTO) mechanism. Most transmission mechanisms use ordinary gear drives, while some use planetary gear drives. Ordinary gear drive transmission mechanisms typically use sliding gears and synchronizers, among others.

[0003] In existing gearboxes, the small gear and large gear need to mesh with other gears separately. If the intermediate shaft assembly is first assembled with the front housing and bearings, and then installed into the main housing, not only will the assembler's view be blocked by the front housing, but it will also need to mesh with two gears at the same time to complete the assembly. The overall assembly difficulty will be greatly increased, making it unsuitable for mass production. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a ball-and-column gear shaft bearing, which features convenient and stable installation and high transmission efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ball-and-column gear shaft bearing, comprising a main housing, a column bearing disposed inside the main housing, a small retaining ring disposed at the bottom end of the column bearing, a gear shaft disposed inside the column bearing, a gear shaft disposed on the surface of the gear shaft, a front housing disposed at the upper end of the main housing, a ball bearing disposed inside the front housing, a large retaining ring disposed at the upper end of the ball bearing, a bearing pressure plate disposed at the bottom end of the ball bearing, a plurality of bolts connected inside the bearing pressure plate, and a sealing cap disposed on the upper surface of the front housing.

[0006] Preferably, a support base is provided at the top of the front housing, a rotating handle is provided at the upper end of the support base, and a screw is provided inside the rotating handle.

[0007] Preferably, the front housing has a bearing chamber corresponding to the ball bearing inside, and the bearing pressure plate has a threaded hole corresponding to the bolt inside.

[0008] Preferably, the gear shaft has a threaded groove inside corresponding to the screw, the outer diameter of the support seat matches the sealing cover, and the inner diameter of the support seat matches the surface of the sealing cover.

[0009] Preferably, the main housing has mounting grooves inside corresponding to the gear shaft and the disc teeth, and the main housing has positioning blocks inside corresponding to the column bearings.

[0010] Preferably, threaded holes are provided on the surfaces of both the front housing and the main housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model uses an assembly fixture to cooperate with the front housing for installation. The fixture passes through the front housing and connects to the intermediate shaft. By operating the fixture, the intermediate shaft and the bearing begin to be interference-fitted. When the interference fit between the intermediate shaft and the bearing is completed, the main housing and the front housing are also closed. This solves the problem of difficult assembly of the one-ball-one-column bearing scheme and achieves a high-efficiency assembly mode. The components used in the overall scheme are simple and common, and the cost is low. Moreover, the use of the one-ball-one-column bearing scheme can improve the transmission efficiency, so it can indirectly solve the problem of low efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the assembled structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the assembly tooling structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the front shell structure of this utility model;

[0017] Figure 5 This is a cross-sectional view of the main shell structure of this utility model.

[0018] In the diagram: 1. Sealing cap; 2. Front housing; 3. Ball bearing; 4. Gear shaft; 5. Disc gear; 6. Column bearing; 7. Main housing; 8. Small snap ring; 9. Bearing pressure plate; 10. Large snap ring; 11. Screw; 12. Rotary handle; 13. Support base; 14. Bolt. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5The present invention provides the following technical solution: a ball-and-column gear bearing, comprising a main housing 7, a column bearing 6 disposed inside the main housing 7, a small retaining ring 8 disposed at the bottom end of the column bearing 6, a gear shaft 4 disposed inside the column bearing 6, a disc tooth 5 disposed on the surface of the gear shaft 4, a front housing 2 disposed at the upper end of the main housing 7, a ball bearing 3 disposed inside the front housing 2, a large retaining ring 10 disposed at the upper end of the ball bearing 3, a bearing pressure plate 9 disposed at the bottom end of the ball bearing 3, a plurality of bolts 14 connected inside the bearing pressure plate 9, and a sealing cap 1 disposed on the upper surface of the front housing 2.

[0021] Specifically, a support base 13 is provided at the top of the front housing 2, a rotating handle 12 is provided at the upper end of the support base 13, and a screw 11 is provided inside the rotating handle 12.

[0022] By adopting the above technical solutions, the components used in the assembly tooling are simple and common, thus reducing the operating cost of the equipment.

[0023] Specifically, the interior of the front housing 2 has a bearing chamber corresponding to the ball bearing 3, and the interior of the bearing pressure plate 9 has a threaded hole corresponding to the bolt 14.

[0024] By adopting the above technical solutions, the accuracy and stability of ball bearing 3 installation are improved, ensuring the quality of equipment use.

[0025] Specifically, the gear shaft 4 has a threaded groove corresponding to the screw 11 inside, the outer diameter of the support seat 13 matches the sealing cover 1, and the inner diameter of the support seat 13 matches the surface of the sealing cover 1.

[0026] By adopting the above technical solution, it is ensured that the front housing 2 can be accurately positioned and clamped during the use of the assembly tooling, thereby improving the assembly quality.

[0027] Specifically, the main housing 7 has mounting grooves inside corresponding to the gear shaft 4 and the disc teeth 5, and the main housing 7 has positioning blocks inside corresponding to the column bearing 6.

[0028] By adopting the above technical solution, the installation quality of gear shaft 4 and disc gear 5 is ensured, and the subsequent assembly of gear shaft 4 can overcome the interference force with column bearing 6 is guaranteed.

[0029] Specifically, threaded holes are provided on the surfaces of both the front housing 2 and the main housing 7.

[0030] By adopting the above technical solution, the accuracy and convenience of installation positioning after the white front shell 2 and the main shell 7 are assembled are improved, thus increasing installation efficiency.

[0031] The working principle and usage process of this utility model are as follows: When using this utility model, during the installation of the gearbox, first install the gear shaft 4 and the disc gear 5 into the interior of the main housing 7, then install the ball bearing 3 into the bearing chamber inside the front housing 2, and install the bearing pressure plate 9 at the bottom end of the ball bearing 3 with bolts 14 to ensure that the axial freedom of the ball bearing 3 is restricted. Then, the screw 11 passes through the front housing 2 and connects to the gear shaft 4. At this time, the support seat 13 and the sealing cover 1 cooperate to position it. Then, rotate the rotating handle 12 so that the gear shaft 4 and the column bearing 6 begin to be interference-fitted. When the gear shaft 4 and the column bearing 6 complete the interference fit, the main housing 7 and the front housing 2 also complete the assembly. When rotating the rotating handle 12, the screw 11 and the gear shaft 4 will be subjected to upward force. Finally, the gear shaft 4 overcomes the interference force with the column bearing 6 to complete the assembly, improving the assembly efficiency, ensuring the convenience of equipment use, using simple and common parts, and having low installation costs.

[0032] 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 ball-and-spur gear bearing, comprising a main housing (7), characterized in that: The main housing (7) is equipped with a column bearing (6) inside, a small snap ring (8) is provided at the bottom end of the column bearing (6), a gear shaft (4) is provided inside the column bearing (6), and a disc tooth (5) is provided on the surface of the gear shaft (4). The upper end of the main housing (7) is equipped with a front housing (2), a ball bearing (3) is provided inside the front housing (2), a large snap ring (10) is provided at the upper end of the ball bearing (3), a bearing pressure plate (9) is provided at the bottom end of the ball bearing (3), and several bolts (14) are connected inside the bearing pressure plate (9). A sealing cover (1) is provided on the upper surface of the front housing (2).

2. The assembly of a ball-and-spur gear shaft bearing according to claim 1, characterized in that: The front housing (2) is provided with a support base (13) at its top end, and a rotating handle (12) is provided at the upper end of the support base (13). A screw (11) is provided inside the rotating handle (12).

3. A ball-and-spur gear shaft bearing according to claim 1, characterized in that: The front housing (2) has a bearing chamber corresponding to the ball bearing (3) inside, and the bearing pressure plate (9) has a threaded hole corresponding to the bolt (14) inside.

4. A ball-and-spur gear shaft bearing according to claim 1, characterized in that: The gear shaft (4) has a threaded groove inside corresponding to the screw (11), the outer diameter of the support seat (13) matches the sealing cover (1), and the inner diameter of the support seat (13) matches the surface of the sealing cover (1).

5. A ball-and-spur gear shaft bearing according to claim 1, characterized in that: The main housing (7) has mounting grooves inside corresponding to the gear shaft (4) and the disc tooth (5), and the main housing (7) has positioning blocks inside corresponding to the column bearing (6).

6. A ball-and-spur gear shaft bearing according to claim 1, characterized in that: Both the front housing (2) and the main housing (7) have threaded holes on their surfaces.

Images