CN220101425U

CN220101425U - Rear cover of integrated swash plate type axial plunger motor

Info

Publication number: CN220101425U
Application number: CN202321079903.4U
Authority: CN
Inventors: 冯先峰; 冯业雷
Original assignee: Shandong Lande Hydraulic Seiko Co ltd
Current assignee: Shandong Lande Hydraulic Seiko Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-11-28
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to the technical field of motor equipment, and provides an integrated swash plate type axial plunger motor rear cover, which comprises a rear cover, wherein a pair of kidney-shaped holes corresponding to the head end and the tail end are formed in the rear cover, an oil supplementing valve, a shuttle valve and a high-pressure overflow valve are arranged along the radial ring of the rear cover, a low-pressure area formed by the low-pressure holes communicated with the shuttle valve and a high-pressure area formed by the high-pressure holes communicated with the high-pressure overflow valve are formed in the kidney-shaped holes, and channels of the oil supplementing valve, the oil supplementing hole and the shuttle valve are mutually communicated. Through the two-way high-pressure overflow valve that sets up, the shuttle valve, the oil supplementing valve is integrated an organic whole, and to a great extent reduces the volume, saves installation space.

Description

Rear cover of integrated swash plate type axial plunger motor

Technical Field

The utility model relates to the technical field of motor equipment, in particular to an integrated swash plate type axial plunger motor rear cover.

Background

When the transmission shaft of the plunger motor rotates, the plunger gradually extends out of the cylinder body in the half circle of the rotation of the plunger motor from bottom to top along the swash plate, so that the volume of a sealed working cavity in a cylinder body hole is continuously increased, partial vacuum is generated to suck oil through an oil distribution window on the oil distribution disc, the plunger is gradually pushed in the half circle of the rotation of the plunger from top to bottom, the volume of the sealed working cavity is continuously reduced, the oil is discharged outwards from the oil distribution disc window, and each plunger reciprocates once every circle of the cylinder body, so that one oil suction action is finished.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the rear cover of the integrated swash plate type axial plunger motor, which overcomes the defects of the prior art, has reasonable design and compact structure and solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides an integrated sloping cam type axial plunger motor back lid, includes the back lid, covers after and has seted up a pair of waist shape hole that the head and the tail are corresponding, is equipped with oil compensating valve, shuttle valve, high-pressure overflow valve along the radial ring of back lid, has seted up the low pressure hole that communicates the shuttle valve in the waist shape hole and has formed the low pressure district, and the high pressure hole that communicates the high-pressure overflow valve forms the high pressure district, and oil compensating valve, oil compensating hole, the passageway intercommunication of shuttle valve each other.

Preferably, the oil supplementing valve, the shuttle valve and the high-pressure overflow valve have the same structure and comprise a nut, a telescopic rod, a spring and a valve core, wherein the nut is connected with the valve core through the telescopic rod, the telescopic rod is sleeved with the spring, and the spring is abutted between the nut and the valve core.

Preferably, the high pressure hole and the kidney-shaped hole are in the same shape and the high pressure hole is located in the lower half of the kidney-shaped hole. The high-pressure hole extends inwards towards the axial direction of the rear cover and is connected to the high-pressure overflow valve.

Preferably, the lower half of the kidney-shaped aperture is gradually recessed inwardly and communicates with the high pressure relief valve.

Preferably, the head ends between the two kidney-shaped holes are not communicated, a strip-shaped groove is formed in the position where the two kidney-shaped holes are not communicated, and an oil supplementing hole extending into the oil supplementing valve is formed in the strip-shaped groove at the upper half part of the kidney-shaped hole.

Preferably, the shuttle valve and the high-pressure overflow valve are both a pair and are arranged on the rear cover in a threaded manner, and the shuttle valve and the high-pressure overflow valve are fixedly connected through a connecting rod.

Preferably, the passages of the pair of shuttle valves are in communication and the passages of the pair of high pressure relief valves are in communication.

Preferably, the shuttle valve is positioned at the lower half of the circular waist shape Kong Wei, and the oil replenishing valve and the shuttle valve are positioned at the upper half of the circular waist shape Kong Wei.

(III) beneficial effects

The embodiment of the utility model provides an integrated swash plate type axial plunger motor rear cover.

The beneficial effects are as follows:

1. through the two-way high-pressure overflow valve that sets up, the shuttle valve, the oil supplementing valve is integrated an organic whole, and to a great extent reduces the volume, saves installation space.

2. The motor is positively and negatively rotated through the bidirectional shuttle valve and the high-pressure overflow valve, so that the protection effect is achieved.

3. Through the oil supplementing valve and the shuttle valve, the cavity heat dissipation is increased, the oil pollution is reduced, and the cleanliness is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of FIG. 1;

FIG. 3 is a schematic illustration of an assembly of the shuttle valve of FIG. 1;

FIG. 4 is a schematic illustration of the high pressure relief valve assembly of FIG. 1.

In the figure: 1. a rear cover; 11. an oil supplementing valve; 2. waist-shaped holes; 21. a low pressure orifice; 22. a high pressure orifice; 3. a bar-shaped groove; 31. an oil supplementing hole; 4. a shuttle valve; 5. high pressure relief valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an integrated swash plate type axial plunger motor rear cover comprises a rear cover 1, wherein the front ends and the rear ends of a pair of kidney-shaped holes 2 formed in the rear cover 1 correspond to each other, a low-pressure hole 21 is formed in the upper half part of the kidney-shaped hole 2, and the lower half part of the kidney-shaped hole 2 is recessed into the rear cover 1;

the oil supplementing valve 11, the pair of shuttle valves 4 and the pair of high-pressure overflow valves 5 are radially arranged on the rear cover 1, the shuttle valves 4 and the high-pressure overflow valves 5 are respectively positioned on the upper half part of the kidney-shaped hole 2 and the lower half part of the kidney-shaped hole 2 to form a low-pressure area and a high-pressure area, the shuttle valves 4 are connected through connecting rods, the shuttle valves 4 and the high-pressure overflow valves 5 form bidirectional overflow, the bidirectional overflow valves positively and negatively rotate the motor to play a role in protecting, the heat dissipation of a cavity can be increased, the pollution of oil liquid is reduced, and the cleanliness is improved. The channel of the shuttle valve 4 is communicated with the channel of the low pressure hole 21, and the lower half part of the kidney-shaped hole 2 is recessed inwards of the rear cover 1 and is communicated with the channel of the high pressure overflow valve 5;

in the embodiment, the first position of the kidney-shaped hole 2 is provided with a margin, the margin is positioned right above and right below the rear cover 1, the margin is also provided with a bar-shaped groove 3, the bar-shaped groove 3 extends to the axle center of the rear cover 1, the bar-shaped groove 3 is internally provided with an oil supplementing hole 31, the oil supplementing hole 31 extends to the channel of the oil supplementing valve 11, the oil supplementing hole 31, the low pressure hole 21 and the shuttle valve 4 are mutually communicated, the oil supplementing valve 11 performs opening and closing limit on the oil supplementing hole 31, the shuttle valve 4 performs opening and closing limit on the low pressure hole 21,

in this embodiment, the oil compensating valve 11, the shuttle valve 4 and the high-pressure overflow valve 5 have the same structure, and comprise a nut, a telescopic rod, a spring and a valve core, wherein the nut is connected with the valve core through the telescopic rod, the telescopic rod is sleeved with the spring, the spring is abutted between the nut and the valve core, when the plunger is rotated from a low pressure area to a high pressure area, the plunger and the cylinder body form a plunger pump, the low-pressure oil in the shuttle valve 4 is pumped into the cylinder body in the low pressure area, the plunger is extruded to form high pressure in the high pressure area, the high-pressure oil is discharged from the high-pressure hole 22 to form circulation, and the oil compensating hole 31 arranged right above the rear cover 1 can timely supplement oil in the space between the cylinder body and the plunger to prevent damage to the cylinder body.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An integrated swash plate type axial plunger motor rear cover comprises a rear cover (1), wherein a pair of kidney-shaped holes (2) corresponding to the head end and the tail end are formed in the rear cover (1);

the method is characterized in that: an oil supplementing valve (11), a shuttle valve (4) and a high-pressure overflow valve (5) are arranged along the radial ring of the rear cover (1);

the low-pressure hole (21) communicated with the shuttle valve (4) is formed in the kidney-shaped hole (2) to form a low-pressure area, the high-pressure hole (22) communicated with the high-pressure overflow valve (5) to form a high-pressure area, and the channels of the oil supplementing valve (11), the oil supplementing hole (31) and the shuttle valve (4) are mutually communicated.

2. An integrated swash plate type axial plunger motor rear cover as set forth in claim 1, wherein: the oil supplementing valve (11), the shuttle valve (4) and the high-pressure overflow valve (5) are identical in structure and comprise nuts, telescopic rods, springs and valve cores, the nuts are connected with the valve cores through the telescopic rods, the springs are sleeved on the telescopic rods, and the springs are abutted between the nuts and the valve cores.

3. An integrated swash plate type axial plunger motor rear cover as set forth in claim 1, wherein: the high-pressure hole (22) and the kidney-shaped hole (2) are consistent in shape, the high-pressure hole (22) is positioned at the lower half part of the kidney-shaped hole (2), and the high-pressure hole (22) extends inwards towards the axial direction of the rear cover (1) and is connected to the high-pressure overflow valve (5).

4. An integrated swash plate type axial plunger motor rear cover as set forth in claim 3, wherein: the lower half part of the kidney-shaped hole (2) is gradually recessed inwards and communicated with the high-pressure overflow valve (5).

5. An integrated swash plate type axial plunger motor rear cover as set forth in claim 1, wherein: the head ends of the two kidney-shaped holes (2) are not communicated, a strip-shaped groove (3) is formed in the position of the non-communication, and an oil supplementing hole (31) extending into the oil supplementing valve (11) is formed in the strip-shaped groove (3) at the upper half part of the kidney-shaped hole (2).

6. An integrated swash plate type axial plunger motor rear cover as set forth in claim 1, wherein: the shuttle valves (4) and the high-pressure overflow valves (5) are both a pair and are arranged on the rear cover (1) in a threaded manner, and the shuttle valves (4) are fixedly connected through connecting rods.

7. An integrated swash plate type axial plunger motor rear cover as set forth in claim 6, wherein: the channels of the shuttle valves (4) are communicated, and the channels of the high-pressure overflow valves (5) are communicated.

8. An integrated swash plate type axial plunger motor rear cover as set forth in claim 1, wherein: the shuttle valve (4) is positioned at the lower half part of the circular shape surrounded by the kidney-shaped hole (2), and the oil supplementing valve (11) and the shuttle valve (4) are positioned at the upper half part of the circular shape surrounded by the kidney-shaped hole (2).