CN2643027Y

CN2643027Y - Bidirectional flow circular arc gear oil pump

Info

Publication number: CN2643027Y
Application number: CN 03238976
Authority: CN
Inventors: 徐德顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-12
Filing date: 2003-03-12
Publication date: 2004-09-22
Anticipated expiration: 2013-03-12

Abstract

The utility model relates to a circle-arc gear oil pump for bidirectional flow, wherein, a pair of engaged driving and driven gears are installed on a driving and driven gear wheel respectively, and are fixed on a pump body (1) with a bearing, an oval clutch cover and bolts. The driving shaft (7) is equipped with flanges (8), and also flanges are arranged at oil inlet and oil outlet (4), (10) at both sides. The utility model has the characteristics that the oil inlet and outlet chamber and mouth are arranged symmetrically to the mid-separate surface of pump body (1). The pump is in small volume, light weight, simple structure, good self-sucking, and even flow and long service life. The driving shaft can conduct counter rotation; the output liquid energy can flow in two-way. The pump is used extensively in various types of automobile, tractor, oil pressure equipment, and for conveyance of various liquids that contain no solid particles.

Description

Bidirectional flow circular tooth gear oil pump

Bidirectional flow circular tooth gear oil pump belongs to the gear pump class.

The circular tooth gear oil pump that prior art provided, adopt the circular tooth gear of pair of meshing, the liquid capacity that enters in the pump chamber is changed, acquisition pressure is output, circular tooth gear, main feature is 1. flank of tooth bearing capacity height, through abundant running-in, can think that the contact of two teeth constitutes the contact of instantaneous line along the tooth depth direction, the engagement of two flank profils is as if along two cylindrical rollings of the tooth length direction of the gear teeth, so good airproof performance, 2. has good running-in characteristic, flank of tooth degree of finish after the running-in is very high, can form good oil film between the flank of tooth, has good hydrodynamic lubrication condition, 3. circular tooth gear does not have the Undercutting Phenomenon of the gear teeth, technology capability is good, and is little with volume, in light weight, simple in structure, flow is even, the efficient height, life-span is long, the operating condition of ability harshness on performance, but the oil inlet and outlet difference of present product, generally all be the oil-feed bore greater than outlet, oil suction chamber is greater than going out oil pocket

The purpose of this utility model is to provide a kind of advantage that possesses existing circular tooth gear oil pump, overcomes above-mentioned deficiency, and the pump driving shaft can clockwise and anticlockwise, can be each other into and out of the bidirectional flow circular tooth gear oil pump of hydraulic fluid port.(hereinafter to be referred as this gear pump).

The technical solution of this gear pump is, the circular tooth gear of pair of meshing still adopts existing optimal design, the pump housing into and out of oil pocket, into and out of hydraulic fluid port, be symmetrically arranged with the pump housing (1) split.

Accompanying drawing 1. bidirectional flow circular-arc gear pumps oil structural representation, Fig. 2 is the left view of Fig. 1.

Among the figure (1). the pump housing, (2). driven gear shaft, (3). driven gear, (4). filler opening, (5). oil suction chamber, (6). driving gear, (7). driving gear shaft, (8). external power flange plate, (9). go out oil pocket, (10). oil outlet.

Be described further below in conjunction with accompanying

drawing

1,2 and embodiment: this gear pump structure as shown in Figure 1, 2, it is contained in respectively on driving and driven gear shaft (7), (2) by driving and driven gear (6), (3) of pair of meshing, with bearing, long-round-shape gland, bolton on the pump housing (1), driving gear shaft (7) section of stretching out has flange plate (8) on adopting, and bi-side are equipped with into and out of the flange plate of hydraulic fluid port (4), (10) and are formed.Its feature is, the pump housing (1) into and out of oil pocket (5), (9) be structure identical can go out, advance the chamber each other, into and out of hydraulic fluid port (4), (10), also be identical can the going out each other, advance of structure, they are symmetrically arranged with the pump housing (1) split.

This gear pump advantage: 1. driving gear shaft energy clockwise and anticlockwise, owing to advance and go out oil pocket, advancing with oil outlet is that structure is identical, so but output liquid bidirectional flow, the replacing oil outlet tube can be done existing gear pump use; 2. still possess existing circular-arc gear pump advantage, flank of tooth bearing capacity height, running-in is easy, hydrodynamic lubrication is good, the pump that volume is little, in light weight, simple in structure, flow is even, pressure is high, the energy self-priming can be selected unlike material according to fed sheet of a media, the efficient height, the life-span is long.

This gear pump can be widely used in various types of automobiles, particularly fuel tank, construction vehicle, haulage vehicle, tractor, machinery, oil pressure unit, oils accumulating, gas station and need the occasion of two-way flow.Self-priming performance is preferably arranged, carry fluid viscosity at 5-1500cst, temperature is no more than 80 ℃, and the various liquid that do not contain solid particle are carried.

Embodiment: bidirectional flow circular tooth gear oil pump YHCB type performance parameter:

Type of pump	Flow Q (m ³/h)	Working pressure P (MPa)	Rotation speed n (r/min)	Efficiency eta (%)	Must net positive suction head (m)	The adapted motor
						The adapted motor		Model	Power KW
						YHCB1.6-2.5	1.6	Model	Power KW	2.5	1450	72	7	YB100L2-4	3
YHCB3.5-1.5	3.5	1.5	1450	72	7	YHCB1.6-2.5	1.6	YB112M-4	4	2.5	1450	72	7	YB100L2-4	3
YHCB3.5-1.5	3.5	1.5	1450	72	7	50YHCB-4	4	YB112M-4	4	0.6	960	65	5	Vehicle transmission	2.2
YHCB4.2-2.5	4.2	2.5	1450	72	7	50YHCB-4	4	YB132S-4	5.5	0.6	960	65	5	Vehicle transmission	2.2
YHCB4.2-2.5	4.2	2.5	1450	72	7	YHCB6-2.5	6	YB132S-4	5.5	2.5	1450	72	7	YB132M-4	7.5
50YHCB-8	8	0.6	960	61	5	YHCB6-2.5	6	YB132S-6	3	2.5	1450	72	7	YB132M-4	7.5
50YHCB-8	8	0.6	960	61	5	50YHCB-15	15	YB132S-6	3	0.6	960	62	5	YB132M2-6	5.5
65YHCB-35	35	0.6	960	70	5	50YHCB-15	15	YB160M-6	7.5	0.6	960	62	5	YB132M2-6	5.5
65YHCB-35	35	0.6	960	70	5	65YHCB-40	40	YB160M-6	7.5	0.6	960	70	5	Automobile drives
76YHCB-40	40	0.6	960	72	5	65YHCB-40	40	Vehicle transmission	7.5	0.6	960	70	5	Automobile drives
76YHCB-40	40	0.6	960	72	5	76YHCB-50	50	Vehicle transmission	7.5	0.6	960	72	5	Vehicle transmission	11
80YHCB-60	60	0.6	960	70	5	76YHCB-50	50	Vehicle transmission	11	0.6	960	72	5	Vehicle transmission	11
80YHCB-60	60	0.6	960	70	5	80YHCB-80	80	Vehicle transmission	11	0.6	960	70	5	Vehicle transmission	15
100YHCB-100	100	0.4	960	70	5	80YHCB-80	80	YB200L1-6	18.5	0.6	960	70	5	Vehicle transmission	15
100YHCB-100	100	0.4	960	70	5	150YHCB-150	150	YB200L1-6	18.5	0.4	960	70	5	YB280S-8	37
200YHCB-200	200	0.4	960	67	5	150YHCB-150	150	YB280M-8	45	0.4	960	70	5	YB280S-8	37

Claims

1. bidirectional flow circular tooth gear oil pump, it is contained in respectively on driving and driven gear shaft (7), (2) by driving and driven gear (6), (3) of pair of meshing, firm on the pump housing (1) with bearing, long-round-shape gland, bolt, driving gear shaft (7) section of stretching out has flange plate (8), bi-side are equipped with into and out of the flange plate of hydraulic fluid port (4), (10) and are formed, it is characterized in that, the pump housing (1) identical into and out of oil pocket (5), (9) structure, identical into and out of hydraulic fluid port (4), (10) structure, be symmetrically arranged with the pump housing (1) split.