CN217898171U - Gear pump - Google Patents

Abstract

The utility model discloses a gear pump, which comprises a pump body, be equipped with the cavity in the pump body, pump body both ends are equipped with protecgulum and hou gai respectively, be equipped with action wheel and follower in the cavity, the action wheel includes output shaft and driving gear, the follower includes pivot and driven gear, action wheel and follower both sides all are equipped with the bush, the bush is equipped with two confessions the through-hole that output shaft and pivot were passed, the bush lateral surface is equipped with balanced oil groove, protecgulum and hou gai orientation one side of the pump body all is equipped with the sealing member, the sealing member includes inner circle and outer lane, inner circle and outer lane integrated into one piece, this gear pump can improve mechanical efficiency, and the starting torque is less.

Description

Gear pump

[ technical field ] A method for producing a semiconductor device

The utility model discloses a gear pump belongs to gear pump technical field.

[ background of the invention ]

The hydraulic power unit has the characteristics of simplicity, convenience, practicability, small occupied space, less power output consumption, high utilization rate, resource saving and the like, and is mainly used for refitting aerial work platforms, crane lifting hydraulic devices, intelligent storage equipment and automobile tailboards. The gear pump of the power unit in the market at present has low mechanical efficiency and large starting torque, causes high energy consumption and cannot meet the requirements of energy conservation and emission reduction.

[ Utility model ] content

The utility model aims to solve the technical problem that a gear pump is provided, this gear pump can improve mechanical efficiency, and starting torque is less.

Solve the technical problem, the utility model discloses a following technical scheme:

the utility model discloses a gear pump, which comprises a pump body, be equipped with the cavity in the pump body, pump body both ends are equipped with protecgulum and hou gai respectively, be equipped with action wheel and follower in the cavity, the action wheel includes output shaft and driving gear, the follower includes pivot and driven gear, action wheel and follower both sides all are equipped with the bush, the bush is equipped with two confessions the through-hole that output shaft and pivot were passed, the bush lateral surface is equipped with balanced oil groove, protecgulum and hou gai orientation one side of the pump body all is equipped with the sealing member, the sealing member includes inner circle and outer lane, inner circle and outer lane integrated into one piece.

Adopt the beneficial effects of the utility model are that:

the utility model discloses in the bush is equipped with two confession the through-hole that output shaft and pivot were passed, the through-hole adopts the customization steel ball to push, has guaranteed the uniformity of the whole size of through-hole has improved greatly simultaneously the smooth finish of through-hole also improves the compactness of through-hole material further improves the life of bush the utility model discloses in the through-hole is inside need not to load and presses slide bearing, can reduce the utility model discloses a starting torque improves the work efficiency, reduces the loss of energy, reaches energy saving and emission reduction's effect, in addition the utility model discloses in the bush lateral surface is equipped with balanced oil groove, balanced oil groove can be balanced greatly the utility model discloses a radial unbalance force to reduce in the wearing and tearing of through-hole promote the mechanical efficiency, also can improve greatly simultaneously the utility model discloses a life.

Preferably, the edges of the two ends of the bushing are arc-shaped, two balance oil grooves are formed in the outer side surface of the bushing, and the two balance oil grooves are respectively located at the two ends of the bushing.

Preferably, an oil inlet groove and an oil discharge groove are formed in two sides of the bushing respectively, and the oil inlet groove and the oil discharge groove are located between two ends of the bushing.

Preferably, an oil inlet is formed in the front cover, an oil outlet is formed in the rear cover, the oil inlet corresponds to the oil inlet groove, and the oil outlet corresponds to the oil discharge groove.

Preferably, the inner wall surfaces of the pump body, which are close to the oil inlet groove and the oil discharge groove, are provided with expansion grooves.

Preferably, the aperture tolerance of the through hole is 0.005mm at most, and the roughness of the through hole is 0.4um at most.

Preferably, the front cover and the rear cover are provided with sealing ring grooves for accommodating the sealing element on one sides facing the pump body, and the sealing ring grooves comprise outer ring grooves for accommodating the outer ring and compensating ring grooves for accommodating the inner ring.

Preferably, the driving gear and the driven gear are in the same horizontal plane.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is a first cross-sectional view of the embodiment of the present invention;

FIG. 3 is a second cross-sectional view of the embodiment of the present invention;

fig. 4 is a schematic structural view of the bushing according to an embodiment of the present invention;

fig. 5 is a front view of the embodiment of the present invention after removing the cover.

Reference numerals: the pump comprises a pump body 1, a front cover 11, an oil inlet hole 111, a rear cover 12, an oil outlet hole 121, a sealing ring groove 122, a bushing 2, an oil inlet groove 21, an oil discharge groove 22, a through hole 23, a balance oil groove 24, an output shaft 31, a driving gear 311, a rotating shaft 32 and a driven gear 321.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, which all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1:

as shown in fig. 1 to 5, this embodiment shows a gear pump, including the pump body 1, be equipped with the cavity in the pump body 1, the both ends of the pump body 1 are equipped with protecgulum 11 and hou gai 12 respectively, be equipped with action wheel and follower in the cavity, the action wheel includes output shaft 31 and driving gear 311, the follower includes pivot 32 and driven gear 321, the driving gear 311 with driven gear 321 is in same horizontal plane, output shaft 31 with driving gear 311 fixed connection keeps synchronous rotation, output shaft 31 is connected with the driver, the driver control output shaft 31 rotates, output shaft 31 drives driving gear 311, driving gear 311 drives driven gear 321 rotates.

The driving wheel and the driven wheel both sides all are equipped with bush 2, bush 2 is equipped with two confessions through-hole 23 that output shaft 31 and pivot 32 passed, push through the customization steel ball, make the aperture tolerance of through-hole 23 is 0.005mm at most, the roughness of through-hole 23 is 0.4um at most, has guaranteed the uniformity of the whole size of through-hole 23, has improved greatly simultaneously the smooth finish of through-hole 23 also improves the compactness of through-hole 23 material further improves bush 2's life, adopts this to push the production efficiency that this pushed the technology can improve this embodiment in addition, is applicable to a large amount of production in batches, in this embodiment through-hole 23 is inside need not to load the slide bearing, can reduce the starting torque of this embodiment, improves the work efficiency of this embodiment, reduces the loss of energy, reaches energy saving and emission reduction's effect.

In addition in this embodiment 2 both ends borders of bush are circular-arcly, 2 lateral surfaces of bush are equipped with two balanced oil grooves 24, two balanced oil grooves 24 are in respectively 2 both ends of bush, balanced oil groove 24 can balance the radial unbalanced force of this embodiment greatly, thereby reduce interior the wearing and tearing of through-hole 23 promote the mechanical efficiency of this embodiment, also can improve the life of this embodiment greatly simultaneously.

In this embodiment be equipped with inlet port 111 on the protecgulum 11, be equipped with oil outlet 121 on the back lid 12, 2 both sides of bush are equipped with oil feed tank 21 and oil discharge tank 22 respectively, oil feed tank 21 with oil discharge tank 22 all is in between 2 both ends of bush, the inlet port 111 of protecgulum 11 with oil feed tank 21 of bush 2 is corresponding, oil outlet 121 of back lid 12 with oil discharge tank 22 of bush 2 is corresponding, pump body 1 is close to oil feed tank 21 and oil discharge tank 22's internal face all is equipped with the dilatation groove, through the dilatation groove can increase oil feed tank 21 with oil discharge tank 22's volume.

In this embodiment, the front cover 11 and the rear cover 12 are provided with sealing elements on one sides facing the pump body 1, the sealing elements include an inner ring and an outer ring, the inner ring and the outer ring are integrally formed, the sealing ring grooves 122 for accommodating the sealing elements are provided on one sides of the front cover 11 and the rear cover 12 facing the pump body 1, and the sealing ring grooves 122 include an outer ring groove for accommodating the outer ring and a compensation ring groove for accommodating the inner ring.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above detailed description. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (8)

1. A gear pump characterized by: the pump comprises a pump body, be equipped with the cavity in the pump body, pump body both ends are equipped with protecgulum and hou gai respectively, be equipped with action wheel and follower in the cavity, the action wheel includes output shaft and driving gear, the follower includes pivot and driven gear, action wheel and follower both sides all are equipped with the bush, the bush is equipped with two confessions the through-hole that output shaft and pivot passed, the bush lateral surface is equipped with balanced oil groove, protecgulum and hou gai orientation one side of the pump body all is equipped with the sealing member, the sealing member includes inner circle and outer lane, inner circle and outer lane integrated into one piece.

2. A gear pump according to claim 1, characterized in that: the edge of the two ends of the bushing is arc-shaped, the outer side surface of the bushing is provided with two balance oil grooves, and the two balance oil grooves are respectively arranged at the two ends of the bushing.

3. A gear pump according to claim 2, characterized in that: and an oil inlet groove and an oil discharge groove are respectively arranged on two sides of the bushing, and the oil inlet groove and the oil discharge groove are both positioned between two ends of the bushing.

4. A gear pump according to claim 3, characterized in that: the oil inlet is formed in the front cover, the oil outlet is formed in the rear cover, the oil inlet corresponds to the oil inlet groove, and the oil outlet corresponds to the oil discharge groove.

5. A gear pump according to claim 3, characterized in that: and the inner wall surfaces of the pump body, which are close to the oil inlet groove and the oil discharge groove, are provided with expansion grooves.

6. A gear pump according to claim 1, characterized in that: the tolerance of the aperture of the through hole is 0.005mm at most, and the roughness of the through hole is 0.4um at most.

7. A gear pump according to claim 1, characterized in that: and one sides of the front cover and the rear cover facing the pump body are respectively provided with a seal ring groove for accommodating the sealing element, and the seal ring groove comprises an outer ring groove for accommodating the outer ring and a compensation ring groove for accommodating the inner ring.

8. A gear pump according to claim 1, characterized in that: the driving gear and the driven gear are in the same horizontal plane.

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