CN212774615U

CN212774615U - Novel high-pressure bolt-free connection type piston pump

Info

Publication number: CN212774615U
Application number: CN202021473414.3U
Authority: CN
Inventors: 彭德军; 周会发
Original assignee: HUBEI DAQI HYDRAULIC CO Ltd
Current assignee: HUBEI DAQI HYDRAULIC CO Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-23
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to a hydraulic pump field just discloses a novel high pressure does not have bolted connection formula piston pump, the hydraulic pump comprises a cylinder body, the top of cylinder body is equipped with the protecgulum, top one side of cylinder body is equipped with out oily annular oil duct, the one end of cylinder body is equipped with the integral key shaft, and the both sides of integral key shaft are equipped with bearing and skeleton oil blanket, integral key shaft and one end both sides are connected with the fixed plate, the both sides of integral key shaft are equipped with the sloping cam plate raceway, and sloping cam plate raceway and steel ball swing joint, the bottom of cylinder body is equipped with out oily check valve, and one side of going out oily check valve is connected with the piston pipeline, the inside oil absorption check valve that is equipped with of. This novel high pressure does not have bolted connection formula piston pump, body and end cover are circular structure, and at pump body outer wall, the end cover hole processing screw thread reaches the result of use of product through single threaded connection. The hydraulic component has simple structure and is convenient for batch production, thereby being an ideal hydraulic component.

Description

Novel high-pressure bolt-free connection type piston pump

Technical Field

The utility model relates to a hydraulic pump field specifically is a novel high pressure does not have bolted connection formula piston pump.

Background

The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. The hydraulic pump is divided into a gear pump, a plunger pump, a vane pump and a screw pump according to the structure.

A new hydraulic pump disclosed in CN200610034491.7 patent is retrieved, which comprises a housing, a driving shaft and a kneading wheel; a cavity which corresponds to the kneading wheel and has a diameter larger than that of the kneading wheel is arranged in the shell; the ring surface of the kneading wheel is provided with a limit groove, and the inner wall of the cavity is provided with an isolation limit piece which extends into the limit groove and is used for preventing the kneading wheel from rotating and allowing the kneading wheel to have proper movement margin; the position on the driving shaft corresponding to the cavity is an eccentric structure, the kneading wheel is sleeved on the eccentric position in a loose fit manner, and the driving shaft can drive the kneading wheel to knead when rotating, so that the outer ring surface of the kneading wheel sequentially extrudes the inner wall of the cavity; the shell on one side of the isolation limiting part is provided with a liquid inlet, the shell on the other side of the isolation limiting part is provided with a liquid outlet, and liquid input from the liquid inlet can flow to the liquid outlet along a gap between the kneading wheel and the inner wall of the cavity under the kneading and extruding of the kneading wheel and is output as high-pressure liquid.

The utility model discloses a, specially adapted low rotational speed or the unstable occasion of rotational speed, for example among the wind power generation set to pressurize liquid, however, this hydraulic pump structure is complicated, and the processing difficulty easily appears the bolt pretightning force, and the product function that intensity is not enough arouses is inefficacy, and processing, equipment difficulty, and simultaneously, the cost is too big, is unsuitable for batch production.

Therefore, a novel high-pressure bolt-free connection type piston pump is designed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a novel high pressure does not have bolted connection formula piston pump has solved body and end cover bolted connection, easily appears the bolt pretightning force, and the product function that intensity is not enough arouses became invalid, and processing, equipment difficulty and cost are too big, unsuitable batch production's problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a novel high pressure does not have bolted connection formula piston pump, includes the cylinder body, the top of cylinder body is equipped with the protecgulum, top one side of cylinder body is equipped with out oily annular oil duct, the one end of cylinder body is equipped with the integral key shaft, and the both sides of integral key shaft are equipped with bearing and skeleton oil blanket, integral key shaft and one end are connected with the fixed plate, the both sides of integral key shaft are equipped with sloping cam plate raceway, and sloping cam plate raceway and steel ball swing joint, the bottom of cylinder body is equipped with out oily check valve, and one side of going out oily check valve is connected with the piston pipeline, the inside oil absorption check valve that is equipped with of piston pipeline.

Furthermore, the both sides fixedly connected with bearing and the skeleton oil blanket of integral key shaft, and bearing and skeleton oil blanket closely laminate in the integral key shaft.

Furthermore, an oil suction one-way valve is arranged in the piston pipeline, the oil suction one-way valve is fixedly connected with the oil outlet one-way valve, and the oil tank is communicated with the oil suction one-way valve through a steel ball.

Further, the protecgulum passes through threaded connection pole fixed connection cylinder body, and the protecgulum is located the top of integral key shaft, bearing and skeleton oil blanket.

Furthermore, one end of the fixing plate is fixedly connected with the spline shaft, and the other end of the fixing plate is movably connected with the connecting column.

Furthermore, a piston rod is arranged in the middle of the interior of the piston pipeline, the outer wall of the piston rod is movably connected with an inner ring piston pipe, and the outer wall of the inner ring piston pipe is annularly surrounded and connected with an outer ring piston pipe.

The utility model has the advantages that:

1. the utility model discloses a, body and end cover bolted connection have been solved in the current trade, and the bolt pretightning force easily appears, and the product function that intensity is not enough arouses is inefficacy, and defects such as processing, equipment difficulty. The novel screw cap is mainly characterized in that the body and the end cap are of a circular structure, threads are machined in an inner hole of the end cap on the outer wall of the body, and the using effect of a product is achieved through single threaded connection. The structure is simple, and the batch production is convenient. It is suitable for all engineering hydraulic systems and is an ideal hydraulic component.

2. The utility model discloses a, used single threaded connection, through this structure for do not receive other factors to influence, simultaneously, through single threaded connection, make the connection more firm reliable, reduced purchase, processing, administrative cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a front view of the present invention;

fig. 3 is a schematic view of the internal structure of the piston tube of the present invention.

In the figure: 1. a cylinder body; 2. an oil outlet annular oil passage; 3. an oil inlet; 4. an oil outlet one-way valve; 5. An oil suction one-way valve; 6. a piston conduit; 7. an oil tank; 8. a spline shaft; 9. a bearing; 10. framework oil seal; 11. a front cover; 12. a fixing plate; 13. a threaded connecting rod; 14. a steel ball; 15. a swash plate raceway; 16. an outer ring piston tube; 17. an inner ring piston tube; 18. a piston rod; 19. connecting columns.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-3: the utility model provides a novel high pressure does not have bolted connection formula piston pump, including cylinder body 1, the top of cylinder body 1 is equipped with protecgulum 11, top one side of cylinder body 1 is equipped with out oily annular oil duct 2, the one end of cylinder body 1 is equipped with integral key shaft 8, and integral key shaft 8's both sides are equipped with bearing 9 and skeleton oil blanket 10, integral key shaft 8 and one end both sides are connected with fixed plate 12, integral key shaft 8's both sides are equipped with sloping cam plate raceway 15, and sloping cam plate raceway 15 and steel ball 14 swing joint, the bottom of cylinder body 1 is equipped with out oily check valve 4, and one side that goes out oily check valve 4 is connected with piston pipeline 6, the inside oil absorption check valve 5 that is equipped with of piston.

Wherein, integral key shaft 8's both sides fixedly connected with bearing 9 and skeleton oil blanket 10, and bearing 9 and skeleton oil blanket 10 closely laminate in integral key shaft 8 for bearing 9 and skeleton oil blanket 10 can keep better closure.

Wherein, an oil suction one-way valve 5 is arranged in the piston pipeline 6, the oil suction one-way valve 5 is fixedly connected with the oil outlet one-way valve 4, and the oil tank 7 is communicated with the oil suction one-way valve 5 through a steel ball 14.

Wherein, protecgulum 11 passes through threaded connection pole 13 fixed connection cylinder body 1, and protecgulum 11 is located integral key shaft 8, bearing 9 and skeleton oil blanket 10's top, and the body is circular structure with the end cover, and at the body outer wall, the end cover hole processing screw thread reaches the result of use of product through single threaded connection.

Wherein, one end of the fixed plate 12 is fixedly connected with the spline shaft 8, and the other end is movably connected with the connecting column 19.

Wherein, the piston pipe 6 is provided with a piston rod 18 in the middle position, and the outer wall of the piston rod 18 is movably connected with an inner ring piston pipe 17, and the outer wall of the inner ring piston pipe 17 is annularly surrounded and connected with an outer ring piston pipe 16.

To sum up, the utility model discloses when using, through the inside oil inlet 3 that is equipped with of cylinder body 1, fluid gets into behind the oil tank 7 for oil absorption check valve 5 is opened, and oil outlet check valve 4 closes, makes integral key shaft 8 constantly carry out reciprocating piston motion, opens when oil outlet check valve 4, and when oil absorption check valve 5 closed, integral key shaft 8 was in the stagnant operating condition, and simultaneously, drives spliced pole 19 through fixed plate 12, thereby realizes that oil absorption check valve 5 can control integral key shaft 8's operating condition, thereby controls the whole pump body.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a novel high pressure does not have bolted connection formula piston pump, includes cylinder body (1), its characterized in that: the top of cylinder body (1) is equipped with protecgulum (11), top one side of cylinder body (1) is equipped with out oily annular oil duct (2), the one end of cylinder body (1) is equipped with integral key shaft (8), and the both sides of integral key shaft (8) are equipped with bearing (9) and skeleton oil blanket (10), integral key shaft (8) and one end both sides are connected with fixed plate (12), the both sides of integral key shaft (8) are equipped with sloping cam plate raceway (15), and sloping cam plate raceway (15) and steel ball (14) swing joint, the bottom of cylinder body (1) is equipped with out oily check valve (4), and one side of producing oily check valve (4) is connected with piston tube way (6), inside oil absorption check valve (5) of being equipped with of piston tube way (6), bottom one side of cylinder body (1) is provided with oil tank (.

2. The new high pressure boltless piston pump of claim 1 wherein: the both sides fixedly connected with bearing (9) and skeleton oil blanket (10) of integral key shaft (8), and bearing (9) and skeleton oil blanket (10) closely laminate in integral key shaft (8).

3. The new high pressure boltless piston pump of claim 1 wherein: an oil suction one-way valve (5) is arranged in the piston pipeline (6), the oil suction one-way valve (5) is fixedly connected with the oil outlet one-way valve (4), and the oil tank (7) is communicated with the oil suction one-way valve (5) through a steel ball (14).

4. The new high pressure boltless piston pump of claim 1 wherein: the front cover (11) is fixedly connected with the cylinder body (1) through a threaded connecting rod (13), and the front cover (11) is located at the tops of the spline shaft (8), the bearing (9) and the framework oil seal (10).

5. The new high pressure boltless piston pump of claim 1 wherein: one end of the fixing plate (12) is fixedly connected with the spline shaft (8), and the other end of the fixing plate is movably connected with the connecting column (19).

6. The new high pressure boltless piston pump of claim 1 wherein: the piston pipeline (6) is internally provided with a piston rod (18) in the middle, the outer wall of the piston rod (18) is movably connected with an inner ring piston pipe (17), and the outer wall of the inner ring piston pipe (17) is annularly surrounded and connected with an outer ring piston pipe (16).