CN202597469U

CN202597469U - Internal-leakage type gear motor shaft sleeve

Info

Publication number: CN202597469U
Application number: CN 201220240013
Authority: CN
Inventors: 阮瑞勇; 王保国; 马爱国
Original assignee: JIANGSU GUORUI HYDRAULIC PRESSURE MACHINE CO Ltd
Current assignee: JIANGSU GUORUI HYDRAULIC PRESSURE MACHINE CO Ltd
Priority date: 2012-05-26
Filing date: 2012-05-26
Publication date: 2012-12-12
Anticipated expiration: 2022-05-26

Abstract

The utility model relates to an internal-leakage type gear motor shaft sleeve. The internal leakage phenomenon of a gear motor exists objectively, and the handling method of internal leaking oil is as follows: an oil leaking hole is formed on a rear cover of a shell of the motor, the internal leaking oil is led back to an oil tank by using a pipeline, so that more inconveniences are caused to installation and use of the motor. The internal-leakage type gear motor shaft sleeve has the advantages that when the motor works, internal-leakage oil enters a low pressure cavity of the motor through an oil leakage groove, the oil hole, a one-way valve and the oil groove from a bearing hole of a gear shaft, and returns to the oil tank through an oil outlet, so that the installation of the motor is simplified; simultaneously, high-pressure oil is introduced into 8-shaped sealing grooves from an R groove and the oil groove at the two top ends of the shaft sleeve, so that the internal leakage amount of the motor is reduced, the volume efficiency is improved; and since the sealing grooves are symmetrically distributed at the end surface of the shaft sleeve, the stressing of the shaft sleeve is balanced, and the wear of the shaft sleeve is effectively prevented. The internal-leakage type gear motor shaft sleeve has the advantages of less internal leakage amount, high volume efficiency, good balance effect and less shaft sleeve wear and the like.

Description

A kind of internal drainage type gear motor axle sleeve

Technical field

The utility model relates to a kind of internal drainage type gear motor axle sleeve, particularly motor internal drainage liquid is imported a kind of motor that the fluid of output (low pressure) chamber after work done returns fuel tank, belongs to Machine Design manufacturing technology field.

Background technique

Gear motor is through incoming pressure oil, forces a pair of parameter involute gear identical with structure to be meshing with each other, and is transported to the important executive component of actuator's acting with the form of moment of torsion and rotating speed.Because gear motor input cavity and output cavity pressure differ bigger; In let out phenomenon objective reality, and motor will be realized forward and reverse rotation, leaking oil can not communicate with arbitrary chamber of turnover oil; Therefore needing that bearing support holes internal leakage oil is drawn separately that housing is outer can proper functioning; Conventional handling is on the housing bonnet of motor, to open a draining hole, with pipeline this internal drainage liquid is drawn oil sump tank again, brings inconvenience for installing and using of motor.

Summary of the invention

The utility model provides a kind of internal drainage type gear motor axle sleeve, has realized oil return in the motor body, has reduced oil circuit, and the sealing that can improve motor simultaneously improves the volumetric efficiency of motor.

To achieve the above object, the present utility model posed to the implementation of the following technical solution: the body of the motor shaft a gear shaft supporting hole, sealing groove, R tank, tank, hole, the gear shaft is provided between the bearing hole and the hole tank vent, said hole and a one-way valve between the tank; said sleeve body of the two gear shaft supporting hole symmetrically disposed on both sides of the hole; sleeve body has a waist end do not cross the "8 "character seal groove; sleeve body two slots with tank top with R and communicates with the seal groove.

Use the described motor axle sleeve of the utility model, the internal drainage liquid during motor operations gets into the motor low pressure chamber from the gear shaft support holes through drain pan, oilhole, one-way valve, oil groove, returns fuel tank through oil outlet again.Gear shaft support holes draining liquid discharge than traditional is compared, and has simplified the installation of motor.Simultaneously; From R groove, the oil groove on axle sleeve two tops high pressure oil is introduced " 8 " word seal groove, not only increased the power that is adjacent to of axle sleeve and gear face, reduce the interior discharge of motor; Improved volumetric efficiency; And, make the axle sleeve stress balance because sleeve end face seal groove is symmetrically distributed, effectively prevent the axle sleeve wearing and tearing.It is little to the utlity model has in the motor liquid discharge, and volumetric efficiency is high, good balance effect, advantage such as the axle sleeve wearing and tearing are little.

Description of drawings

Accompanying drawing 1 is the main TV structure schematic representation of the utility model;

Accompanying drawing 2 is looked partial sectional view for the master of the utility model;

Accompanying drawing 3 be in the accompanying drawing 2 A-A to sectional view;

Accompanying drawing 4 is looked sectional view for the master of the utility model.

In accompanying drawing 1,2: 1 axle sleeve body, 2 gear shaft support holes, 3 one-way valves, 4 seal grooves, 5 R grooves, 6 drain pans, 7,8 oilholes, 9 oil grooves.

Embodiment

Like the utility model internal drainage type bidirectional geared motor axle sleeve shown in the drawings, comprise figure of eight

axle sleeve body

1,1 is arranged with two gear shaft support holes 2 on the axle sleeve body.During motor operations, input high pressure oil one side is the zone of high pressure, and opposite side is a low pressure area; When to motor one chamber input high pressure oil; The closed check valve of high pressure one side, the R groove on axle sleeve two tops is introduced " 8 " word seal groove 4 of axle sleeve end face with high pressure oil, makes axle sleeve be adjacent to the gear shaft end face; Form an airtight cavity volume, high pressure oil forces gear pair to rotate work done.The fluid that leaks into two gear shaft support holes 2 is after lubricating gear shaft, and the drain pan 6 excessively in seal groove 4,

oilhole

7,8 get into axle sleeve opposite side one-way valves 3 and advance the low pressure fluid retrieval system of low pressure chamber after work done.For adapting to its structural forward and reverse requirement; The seal groove 4 of axle sleeve adopts has the Uncrossed figure of eight design of symmetric waist; The R groove 5 on 1 liang of top of axle sleeve body links to each other with end face seal groove 4, and two gear shaft support holes 2 are communicated with low pressure chamber by a drain pan 6,

oilhole

7,8 and one-way valve 3.

Claims

1. internal drainage type gear motor axle sleeve; Gear shaft support holes, seal groove, R groove, oil groove, oilhole are set on the motor axle sleeve body; It is characterized in that: be provided with drain pan between said gear shaft support holes and the oilhole, be provided with one-way valve between said oilhole and the oil groove.

2. a kind of internal drainage type gear motor axle sleeve according to claim 1 is characterized in that: two gear shaft support holes on the said axle sleeve body are symmetricly set on the oilhole both sides.

3. a kind of internal drainage type gear motor axle sleeve according to claim 1 and 2 is characterized in that: said axle sleeve body end face is provided with waist Uncrossed " 8 " word seal groove.

4. a kind of internal drainage type gear motor axle sleeve according to claim 1 and 2, it is characterized in that: axle sleeve body two tops are provided with R groove and oil groove, and communicate with seal groove.