CN202597093U

CN202597093U - Through flow circulating self-lubricating high-pressure gear pump

Info

Publication number: CN202597093U
Application number: CN 201220251009
Authority: CN
Inventors: 吕振; 董子臣; 马树军
Original assignee: FUXIN HYDRAULIC OIL PUMPS PLANT
Current assignee: Fuxin Haipu Hydraulic Manufacturing Co., Ltd.
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2012-12-12
Anticipated expiration: 2022-05-31

Abstract

The utility model belongs to hydraulic elements, and particularly relates to a through flow circulating self-lubricating high-pressure gear pump. The through flow circulating self-lubricating high-pressure gear pump comprises a front cover (2), a pump body (5), a rear cover (7), a driving gear shaft (14), a driven gear shaft (13), a side plate (11), a compensating subassembly (12), a framework oil seal (1), a positioning pin (4) and an end cover (8), wherein an arc-shaped oil groove (6-1), a first V-shaped oil groove (6-2) and a second V-shaped oil groove (6-3) which are intercommunicated are respectively formed on the internal circumference of the self-lubricating bearing (6). With adoption of the through flow circulating self-lubricating high-pressure gear pump, the shortcomings of a high pressure gear pump that as the bearing is seriously worn, the efficiency of the gear pump is low and the service life of the gear pump is short can be effectively solved; the cost is reduced; the working conditions of workers can be improved; and the use effect of the equipment is improved as well.

Description

Through-flow circulation selflubricating high-pressure gear pump

Technical field

The utility model belongs to hydraulic element, particularly a kind of through-flow circulation selflubricating high-pressure gear pump.

Background technique

At present, the high-pressure gear pump of domestic use, ubiquity the problem of work middle (center) bearing because of stressed serious wear, and influence the working life of high-pressure gear pump, can not satisfy the demand of high-tension apparatus, have limited the using scope of high-pressure gear pump.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned technical deficiency, provides a kind of gear pump efficient, life-span of can improving long, can satisfy the through-flow circulation selflubricating high-pressure gear pump of high-pressure and hydraulic device requirement.

The technological scheme that the utility model technical solution problem adopts is: through-flow circulation selflubricating high-pressure gear pump comprises protecgulum, the pump housing, bonnet, driving gear shaft, driven gear shaft, side plate, compensation assembly, outside framework oil seal, locating stud, end cap; Be characterized in having an arc oil groove on the inner peripheral surface of self oiling bearing; A V-arrangement oil groove one and a V-arrangement oil groove two are communicated with between arc oil groove and V-arrangement oil groove one, the V-type oil groove two.

The beneficial effect of the utility model is: when through-flow circulation selflubricating high-pressure gear pump has effectively overcome the high-pressure gear pump work bearing wear serious, make shortcomings such as gear pump efficient is low, the life-span is short; Reduce cost, improved the using effect of worker laboring environment and equipment.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is through-flow circulation selflubricating high-pressure gear pump structure sectional view.

Fig. 2 is a self oiling bearing plan view among Fig. 1.

Fig. 3 is the A-A sectional view of Fig. 2.

Among the figure, the 1-outside framework oil seal; The 2-protecgulum; The 3-seal ring; The 4-locating stud; The 5-pump housing; The 6-self oiling bearing; 6-1-arc oil groove; 6-2-V shape oil groove one; 6-3-V shape oil groove two; The 7-bonnet; The 8-end cap; The 9-clamping bolt; The 10-connecting bolt; The 11-side plate; The 12-compensation assembly; The 13-driven gear shaft; The 14-driving gear shaft.

Embodiment

Embodiment; With reference to accompanying drawing 1 ~ 3, connect with connecting bolt 10 between the protecgulum 2 of through-flow circulation selflubricating high-pressure gear pump, the pump housing 5 and the bonnet 7, and spacing with seal ring 3 sealings and locating stud 4; Be fastenedly connected with clamping bolt 9 between bonnet 7 and the end cap 8, and with seal ring 3 sealings.Upper and lower each insert one cover self oiling bearing 6 in protecgulum 2 and bonnet 7 inner chambers; Have an arc oil groove 6-1, V-arrangement oil groove one 6-2 and V-arrangement oil groove two 6-3 on the inner peripheral surface of self oiling bearing 6, be communicated with between arc oil groove 6-1 and V-arrangement oil groove one 6-2, V-arrangement oil groove two 6-3.Install driving gear shaft 14 in two of the correspondence cover self oiling bearings 6 above in protecgulum 2 and bonnet 7 inner chambers; Install driven gear shaft 13 in the two cover self oiling bearings 6 of following correspondence; Be connected with a joggle between the gear of driving gear shaft 14 and driven gear shaft 13; The gear both sides suit side plate 11 of driving gear shaft 14 and driven gear shaft 13 between side plate 11 and the protecgulum 2, between side plate 11 and the bonnet 7 compensation assembly 12 is housed all, is equipped with outside framework oil seal 1 sealing between protecgulum 2 and the driving gear shaft 14.

Claims

1. through-flow circulation selflubricating high-pressure gear pump; Comprise protecgulum (2), the pump housing (5), bonnet (7), driving gear shaft (14), driven gear shaft (13), side plate (11), compensation assembly (12), outside framework oil seal (1), locating stud (4), end cap (8); It is characterized in that having an arc oil groove (6-1) on the inner peripheral surface of self oiling bearing (6); A V-arrangement oil groove one (6-2) and a V-arrangement oil groove two (6-3) are communicated with between arc oil groove (6-1) and V-arrangement oil groove one (6-2), the V-type oil groove two (6-3).