CN2555448Y

CN2555448Y - Appts. having pump

Info

Publication number: CN2555448Y
Application number: CN 02238286
Authority: CN
Inventors: 李鸿涛; 谢洪波; 王文尔; 许铭; 王嘉
Original assignee: Sinopec Henan Petroleum Exploration Bureau Nanyang Petroleum Machinery Factory
Current assignee: Sinopec Henan Petroleum Exploration Bureau Nanyang Petroleum Machinery Factory
Priority date: 2002-06-28
Filing date: 2002-06-28
Publication date: 2003-06-11
Anticipated expiration: 2012-06-28

Abstract

The utility model has a device containing a pump. An output axle of a pump box is arranged in the center of the box body, and the periphery of the box body is provided with a plurality of power output axles. A gear of each output axle is engaged with a gear of the input axle. The transmission ratio of each gear pair is designed according to different speeds required by an executive mechanism. The device containing the pump also includes a compulsory lubricating and radiating loop which are formed through connecting an oil filter, a gear pump is driven by the pump box and a radiator in parallel, so as to lubricate and cool the gear and a bearing. Solving the problem that the device containing the pump drives a plurality of hydraulic oil pumps, the utility model has the advantages of good effects in lubrication and radiation and high structure strength.

Description

Appts. having pump

(1) technical field

The utility model relates to a kind of gear housing, is applicable to the driving of the concentrated hydraulic power oil pump of machinery.

(2) background technique

In the prior art, petroleum machinery equipment Appts. having pump is that a gear housing claims to be with pump box again, it has three transmission shafts at most, an input shaft, two output shafts, input shaft, output shaft be linear array from top to bottom, and casing is the narrow high shaped shape, transmission speed ratios at different levels are 1: 1, and output shaft is connected with hydraulic-pressure pump by two flat keys or rectangular spline.This band pump box adopts splash lubrication mode, the natural cooling heat radiation, and cabinet wall is equipped with two swab cases, and the bearing that is positioned at the higher position is lubricated by the lubricated pipeline that swab case links to each other with bearing support, gets rid of oil lubrication when bottom bearing leans on gear operation.

Above-mentioned band pump box is subjected to structural limitations, is applied in to have following problem when concentrating the hydraulic power oil pump to drive:

Though 1 structural design can drive 4 table oil pumps, owing to only depend on splash lubrication and natural cooling, casing and lubrication system heating are serious, cause bearing or gear to damage easily, can only drive 2 hydraulic-pressure pumps in the application.

2, because gear pair velocity ratios at different levels are equal, each output shaft invariablenes turning speed, each hydraulic-pressure pump of needs has the requirement of different input speeds because of the difference of operating mode to be difficult to satisfy the hydraulic system executive component.

3, casing is the narrow high shaped shape, when driving variable capacity oil pump, because the continuous variation of hydraulic flow and pressure, and causing that the transmission shaft load constantly changes, housing structure intensity is on the low side, this is difficult to adapt to.

(3) model utility content

The purpose of this utility model provides a kind of oil pump that can drive a plurality of different rotating speeds, lubricated good heat dissipation effect, compact structure, Appts. having pump that structural strength is high.

The technological scheme that the utility model is taked is the central authorities that input shaft is installed in band pump box casing, gear of fixed installation on the input shaft, around input shaft many ptos are installed, each output shaft fixedly mounts a gear respectively, gear on each output shaft all with input shaft on gear engagement, require each gear pair velocity ratio of design according to the required friction speed of actuator.Appts. having pump also comprises pressure lubrication and heat-radiation loop, and this pressure lubrication and heat-radiation loop are by oil purifier, are made of the gear pump of band pump box driving, the oil hydraulic circuit of radiator tandem.After the gear pump that lubricant oil is driven by the band pump box by oil purifier in the casing sucks, the radiator of flowing through, cooled pressure oil sprays to casing internal gear mesh regional and bearing, and gear and bearing are lubricated and cool off.

The utility model has been owing to designed many output shafts of layout around the input shaft that is positioned at casing central authorities, and is provided with pressure lubrication and heat-radiation loop, solved many hydraulic-pressure pump problems of driving, and lubricated, good heat dissipation effect; Because the casing cross section is approaching square, structural strength and stressing conditions have clear improvement simultaneously.

The utility model is described in further detail below in conjunction with drawings and Examples.

(4) description of drawings

Fig. 1 is the band pump box structural representation of Appts. having pump

Fig. 2 is that Fig. 1 is along the A-A sectional view

Fig. 3 is that Fig. 1 is along the B-B sectional view

Fig. 4 is Appts. having pump pressure lubrication and heat-radiation loop schematic diagram

(5) embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, in the band pump box casing 1 five transmission shafts are installed, the middle transmission shaft of installing 2 is power input shafts, four transmission shafts installing all around around transmission shaft 2 are respectively pto 3,4,5,6, use spline connecting band moving gear 8,9,10,11 on the output shaft 3,4,5,6 respectively, gear 8,9,10,11 all meshes with the gear 7 that is fixed on the input shaft 2, form four pairs of gear pairs, the number of teeth of design gear 7,8,9,10,11 can obtain different output shaft rotating speeds as required.Output shaft 3,4,5,6 two ends all have internal spline, to drive oil pump.The all designs routinely of supporting, sealing and other structure of each transmission shaft of band pump box.

As shown in Figure 4, oil purifier 12, the gear pump 13, the radiator 14 that are driven by the band pump box are connected in the oil hydraulic circuit, and with radiator 14 one-way valves 15 in parallel, above-mentioned oil hydraulic circuit constitutes pressure lubrication and heat-radiation loop.During work; lubricant oil in the casing filters by oil purifier 12; after gear pump 13 suctions; the radiator 14 of flowing through, lubricant oil sprays to casing internal gear meshing zone and bearing after fan is air-cooled, and gear and bearing are lubricated and cool off; one-way valve 15 is Protective valves of radiator 14; when radiator 14 retaining pressures during greater than setting value, lubricant oil will carry out bypass from one-way valve 15, protection radiator 14.

Claims

1, a kind of Appts. having pump, comprise gear housing etc., it is characterized in that: the input shaft of described gear housing (2) is installed in casing (1) central authorities, input shaft (2) is gone up a fixed installation gear (7), around input shaft (2) many ptos (3), (4), (5), (6) are installed, fixedly mount gear (8), (9), (10), (11) on each output shaft (3), (4), (5), (6) respectively, all mesh with gear (7) gear (8), (9), (10), (11); Described Appts. having pump sprays to pressure lubrication and the heat-radiation loop that constitutes in the casing after also comprising gear pump (13) that the lubricant oil in the casing drives through oil purifier (12), band pump box, oil hydraulic circuit that radiator (14) series connection constitutes.

2, Appts. having pump as claimed in claim 1, it is characterized in that: described output shaft is four output shafts (3), (4), (5), (6), output shaft (3), (4), (5), (6) two ends all have internal spline, with radiator (a 14) one-way valve in parallel (15), described radiator (14) adopts fan cooled in described pressure lubrication and the heat-radiation loop.