CN215257715U

CN215257715U - High-precision pinion shaft

Info

Publication number: CN215257715U
Application number: CN202120851314.8U
Authority: CN
Inventors: 李勤
Original assignee: Zhejiang Yuanda Heavy Forging Co ltd
Current assignee: Zhejiang Yuanda Heavy Forging Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-21
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a high accuracy pinion shaft, including the gear shaft body, still include gear shaft bearing and pinion body, the periphery of gear shaft body cup joints and is fixed with gear shaft bearing and pinion body, gear shaft bearing's inside roll connection has the roller, the inner periphery of gear shaft bearing's outer loop is constructed conical inner edge, and the periphery of gear shaft bearing inner loop is constructed conical outer fringe, nested two seal ring of installing between gear shaft bearing's outer loop and the inner ring, seal ring's inside packing has the metal sheet, seal ring's periphery is constructed the evagination with the outer fringe adaptation, seal ring's inner periphery is constructed the interior bulge with the inner edge adaptation, seal ring's lateral wall is constructed the oil filler point that runs through the metal sheet. The lubricating oil is convenient to inject, the rotation of the gear bearing seat is facilitated, the noise during rotation is reduced, and the service life of the sealing washer is prolonged.

Description

High-precision pinion shaft

Technical Field

The utility model relates to a gear shaft technical field, in particular to high accuracy pinion shaft.

Background

Gear shaft refers to a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Typically in the form of a metal rod, each section may have a different diameter. The parts of the machine that rotate are mounted on the shaft. The conventional gear shaft is generally processed with a gear and a bearing block, and the gear is basically formed by lathing. When the gear shaft rotates, the rotating part needs to be lubricated, and the existing gear shaft is inconvenient to add and inject lubricating oil.

To this end, we propose a high precision pinion shaft.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a high accuracy pinion shaft can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-precision pinion shaft comprises a pinion shaft body, a pinion bearing seat and a pinion body, wherein the pinion bearing seat and the pinion body are fixedly sleeved on the periphery of the pinion shaft body;

the inner part of the gear bearing seat is connected with a roller in a rolling mode, a conical inner edge is constructed on the inner periphery of an outer ring of the gear bearing seat, a conical outer edge is constructed on the outer periphery of an inner ring of the gear bearing seat, two sealing washers are installed between the outer ring and the inner ring of the gear bearing seat in a nested mode, a metal plate is filled in the sealing washers, an outer protrusion matched with the outer edge is constructed on the outer periphery of each sealing washer, an inner protrusion matched with the inner edge is constructed on the inner periphery of each sealing washer, an oil filling hole penetrating through the metal plate is constructed on the side wall of each sealing washer, and an oil filling cover is connected with the inner thread of the oil filling hole.

Further, the cross sections of the outer protrusion and the inner protrusion are both configured to be conical; when the outer ring and the inner ring of the gear bearing seat rotate relatively, the sealing washer rolls relatively, and the conical inclined surface can prevent oil from leaking.

Further, lubricating oil is filled between the two sealing gaskets; the gear bearing seat is beneficial to rotation, and noise generated by rotation is reduced.

Further, the diameter of the gear bearing seat is smaller than that of the pinion body; the pinion body is convenient to carry out meshing transmission.

Compared with the prior art, the utility model discloses following beneficial effect has: the sealing gasket and the outer bulge and the inner bulge which are integrally formed by the sealing gasket improve the tightness between the sealing gasket and the gear bearing seat; the oil injection cover is arranged, so that lubricating oil can be conveniently injected, the rotation of the gear bearing seat is facilitated, and the noise during the rotation is reduced; the metal plate filled in the sealing washer improves the structural strength of the sealing washer and prolongs the service life of the sealing washer.

Drawings

Fig. 1 is the utility model relates to a structural schematic diagram of high accuracy pinion shaft.

Fig. 2 is a cross-sectional view of the high-precision pinion shaft of the present invention.

Fig. 3 is an enlarged view of a structure of a high-precision pinion shaft in fig. 2 according to the present invention.

In the figure: 1. a gear shaft body; 2. a gear bearing seat; 3. a pinion gear body; 4. a roller; 5. a sealing gasket; 6. a metal plate; 7. an oil injection cover; 8. an outer protrusion; 9. an inner bulge.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a high-precision pinion shaft comprises a pinion shaft body 1, a pinion bearing seat 2 and a pinion body 3, wherein the pinion bearing seat 2 and the pinion body 3 are fixedly sleeved on the periphery of the pinion shaft body 1;

the roller bearing is characterized in that a roller 4 is connected to the interior of the gear bearing seat 2 in a rolling mode, a conical inner edge is formed on the inner periphery of an outer ring of the gear bearing seat 2, a conical outer edge is formed on the outer periphery of an inner ring of the gear bearing seat 2, two sealing gaskets 5 are nested between the outer ring and the inner ring of the gear bearing seat 2, a metal plate 6 is filled in each sealing gasket 5, an outer protrusion 8 matched with the outer edge is formed on the outer periphery of each sealing gasket 5, an inner protrusion 9 matched with the inner edge is formed on the inner periphery of each sealing gasket 5, an oil filling hole penetrating through the metal plate 6 is formed in the side wall of each sealing gasket 5, and an oil filling cover 7 is connected to the inner thread of each oil filling hole.

Wherein the cross sections of the outer protrusion 8 and the inner protrusion 9 are both configured to be conical; when the outer ring and the inner ring of the gear bearing seat 2 rotate relatively, the sealing washer 5 rolls relatively, and the conical inclined surface can prevent oil from leaking.

Lubricating oil is filled between the two sealing gaskets 5; the gear bearing pedestal 2 is beneficial to rotation, and the noise generated by rotation is reduced.

Wherein the diameter of the gear bearing seat 2 is smaller than that of the pinion body 3; the pinion body 3 is facilitated to perform meshing transmission.

It should be noted that, the utility model relates to a high accuracy pinion shaft, during the use, be connected gear shaft body 1, gear bearing seat 2 and pinion body 3 with external spare part respectively, rotate oiling lid 7 and pour into lubricating oil into between the gear bearing seat 2, pinion body 3 when with external gear engagement transmission, the inner ring of gear bearing seat 2 rotates thereupon, seal ring 5 takes place relative rotation with inner ring and outer loop.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high-precision pinion shaft comprises a pinion shaft body (1), and is characterized by further comprising a pinion bearing seat (2) and a pinion body (3), wherein the pinion bearing seat (2) and the pinion body (3) are fixedly sleeved on the periphery of the pinion shaft body (1);

the inside roll connection of gear bearing seat (2) has roller (4), the interior circumference of the outer loop of gear bearing seat (2) is constructed with conical inner edge, and the periphery of gear bearing seat (2) inner ring is constructed with conical outer edge, two seal ring (5) are installed to the nestification between the outer loop of gear bearing seat (2) and the inner ring, the inside packing of seal ring (5) has metal sheet (6), the periphery of seal ring (5) is constructed with outer arch (8) with the outer fringe adaptation, the interior circumference of seal ring (5) is constructed with interior arch (9) with the inner edge adaptation, the lateral wall of seal ring (5) is constructed with the oil filler point that runs through metal sheet (6), and oil filler point female connection has oiling lid (7).

2. A high precision pinion shaft as set forth in claim 1 wherein: the cross sections of the outer protrusion (8) and the inner protrusion (9) are both conical.

3. A high precision pinion shaft as set forth in claim 1 wherein: lubricating oil is filled between the two sealing gaskets (5).

4. A high precision pinion shaft as set forth in claim 1 wherein: the diameter of the gear bearing seat (2) is smaller than that of the pinion body (3).