阅读说明：本技术 一种斜轴泵浮动缸体配流机构 (Floating cylinder flow distribution mechanism of inclined shaft pump ) 是由 李东林 杨芳 李聚波 刘明伟 王军华 李阁强 王帅 徐莉萍 于 2021-09-08 设计创作，主要内容包括：本发明的目的在于提供一种斜轴泵浮动缸体配流机构,以解决现有技术中的缸体受倾覆力矩摆动后易导致偏磨严重、斜轴泵运行效率下降的技术问题。斜轴泵浮动缸体配流机构包括壳体、端盖、配流盘、缸体以及传动齿圈。传动齿圈包括从动锥齿,还包括朝向端盖延伸的筒体,筒体绕壳体的轴线转动装配在壳体中,筒体中设有挡壁,挡壁上设有通孔；缸体滑动装配在筒体中且缸体与筒体之间具有摆动间隙,缸体的外周上设有环形的圆弧凸台,圆弧凸台的顶部与缸体内壁间隙配合；圆弧凸台上设有沿缸体轴向延伸的传动沟槽,筒体上设有传动销,传动销穿入传动沟槽内,以带动缸体转动；挡壁与缸体之间压装有弹性件,弹性件用于对缸体施加朝向配流盘的弹性力。(The invention aims to provide a flow distribution mechanism of a floating cylinder body of an inclined shaft pump, which aims to solve the technical problems that the cylinder body in the prior art is easy to cause serious eccentric wear and reduced operation efficiency of the inclined shaft pump after being swung by overturning moment. The floating cylinder body flow distribution mechanism of the inclined shaft pump comprises a shell, an end cover, a flow distribution plate, a cylinder body and a transmission gear ring. The transmission gear ring comprises a driven bevel gear and a cylinder body extending towards the end cover, the cylinder body is rotatably assembled in the shell around the axis of the shell, a blocking wall is arranged in the cylinder body, and a through hole is formed in the blocking wall; the cylinder body is assembled in the cylinder body in a sliding mode, a swing gap is formed between the cylinder body and the cylinder body, an annular arc boss is arranged on the periphery of the cylinder body, and the top of the arc boss is in clearance fit with the inner wall of the cylinder body; the arc boss is provided with a transmission groove extending along the axial direction of the cylinder body, the cylinder body is provided with a transmission pin, and the transmission pin penetrates into the transmission groove to drive the cylinder body to rotate; an elastic piece is pressed between the blocking wall and the cylinder body and is used for applying elastic force towards the valve plate to the cylinder body.)

1. A floating cylinder flow distribution mechanism of a bent axle pump comprises:

the flow distribution device comprises a shell (1) and an end cover (2) arranged on the shell (1), wherein a flow distribution plate (6) is arranged on the end cover (2);

its characterized in that, the floating cylinder body flow distribution mechanism of oblique axis pump still includes:

the cylinder body (5) is arranged in the shell (1), a plunger hole (13) is formed in the cylinder body (5), and a plunger connecting rod assembly (12) is assembled in the plunger hole (13) in a sliding mode;

the transmission gear ring (3) comprises driven bevel teeth (16) used for being in meshing transmission with a transmission part, the transmission gear ring (3) further comprises a cylinder body (19) extending towards the end cover (2), the cylinder body (19) is assembled in the shell (1) in a rotating mode around the axis of the shell (1), one end, close to the driven bevel teeth (16), in the cylinder body (19) is provided with a blocking wall (21), and the blocking wall (21) is provided with a through hole (20) for the plunger connecting rod assembly (12) to penetrate through;

the cylinder body (5) is assembled in the cylinder body (19) in a sliding mode along the axial direction of the cylinder body (5), a swinging gap used for enabling the cylinder body (5) to swing and adjust is formed between the cylinder body (5) and the cylinder body (19), an annular arc boss (14) is arranged on the periphery of the cylinder body (5), and the top of the arc boss (14) is in clearance fit with the inner wall of the cylinder body (19) so that the cylinder body (5) can swing and adjust around the top of the arc boss (14);

the arc boss (14) is provided with a transmission groove (15) extending along the axial direction of the cylinder body (5), the cylinder body (19) is provided with a transmission pin (4), and the transmission pin (4) penetrates into the transmission groove (15) to drive the cylinder body (5) to rotate;

an elastic piece is pressed between the blocking wall (21) and the cylinder body (5) and is used for applying elastic force towards the valve plate (6) to the cylinder body (5).

2. The floating cylinder block flow distribution mechanism of the inclined shaft pump according to claim 1, characterized in that a cylinder body (19) of the transmission gear ring (3) is provided with a radial mounting hole (17), and the transmission pin (4) is in interference fit with the mounting hole (17).

3. The floating cylinder block distribution mechanism of the oblique shaft pump according to claim 2, characterized in that the mounting holes (17) are provided in plurality and circumferentially and uniformly distributed on the cylinder (19).

4. The floating cylinder block flow distribution mechanism of the inclined shaft pump according to claim 1, 2 or 3, characterized in that the transmission gear ring (3) is rotatably assembled in the shell (1) through a bearing, an inner bearing ring is sleeved outside a cylinder body (19) of the transmission gear ring (3), and an outer bearing ring is fixedly assembled on the shell (1);

the top of the arc boss (14) is arranged corresponding to the axial center of the bearing along the radial direction.

5. The flow distribution mechanism of a floating cylinder body of a bent axis pump according to claim 4, characterized in that the bearing is a double row angular contact ball bearing (7).

6. The floating cylinder block flow distribution mechanism of the inclined shaft pump according to claim 1, 2 or 3, characterized in that the transmission gear ring (3) is rotatably assembled in the shell (1) through a bearing, the inner ring of the bearing is sleeved outside the cylinder body (19) of the transmission gear ring (3), and the outer ring of the bearing is fixedly assembled on the shell (1);

a gear ring boss (23) is arranged on the outer portion of one end, close to the driven bevel gear, of the cylinder body (19), an inner ring fixing nut (11) is assembled on the outer portion of one end, close to the valve plate (6), of the outer thread, and the gear ring boss (23) and the inner ring fixing nut (11) are matched with and clamp an inner ring of the bearing in the axial direction.

7. The floating cylinder block flow distribution mechanism of the inclined shaft pump according to claim 6, characterized in that a shell boss (22) is arranged on the inner side of one end of the shell (1) close to the flow distribution plate (6), an outer ring fixing nut (10) is screwed on the inner side of one end close to the driven bevel gear, and the shell boss (22) and the outer ring fixing nut (10) are matched with and clamped with the outer ring of the bearing along the axial direction.

8. The floating cylinder block distribution mechanism of an oblique shaft pump according to claim 1, 2 or 3, characterized in that the baffle wall (21) is integrally formed with the transmission ring gear (3).

9. The floating cylinder block distribution mechanism of the oblique shaft pump according to claim 1, 2 or 3, characterized in that the circular arc boss (14) on the outer periphery of the cylinder block (5) is provided at one end of the cylinder block (5) near the stopper wall (21).

10. The arrangement according to claim 1 or 2 or 3, characterized in that the elastic member is a compression spring (8); the cylinder body (5) is close to the center of one end of the blocking wall (21) and is provided with an installation groove (9), and the pressure spring (8) is embedded in the installation groove (9).

Technical Field

The invention relates to the technical field of a diagonal shaft pump, in particular to a flow distribution mechanism of a floating cylinder body of the diagonal shaft pump.

Background

The hydraulic transmission has the outstanding advantages of large power density ratio, flexible control and the like, and is widely applied to the fields of aerospace, engineering machinery, marine equipment and the like. The hydraulic pump is the core power element of the hydraulic transmission system and provides pressure and flow for the hydraulic system. Among various hydraulic pumps, the oblique axis type plunger pump, i.e., the oblique axis pump, has the advantages of small number of friction pairs, large inclination angle, small volume, high efficiency and the like, and is one of the most widely used hydraulic pumps.

Chinese utility model patent with publication number CN207470369U discloses an inclined shaft pump with gear driving cylinder movement, which comprises a housing and a cylinder assembled in the housing, wherein the housing is provided with an end cover, the cylinder is fixedly provided with a driving gear ring (i.e. a bevel gear in the patent), and the driving gear ring is provided with a driven bevel gear engaged with a driving part. The cylinder body is provided with a central hole, a mandrel is arranged in the central hole, the cylinder body is rotatably assembled in the shell through the mandrel, and the end face of the cylinder body is attached to a valve plate on the end cover; one end of the mandrel penetrates through the valve plate to be rotatably assembled with the bottom of the shell, and the other end of the mandrel is connected with the transmission part of the inclined shaft pump, so that the cylinder body is supported in the shell through the mandrel and rotates around the mandrel. The cylinder body is internally provided with a plurality of plunger holes along the circumferential direction of the cylinder body, and the plunger holes are internally provided with a plunger connecting rod assembly in a sliding way, and the plunger connecting rod assembly comprises a plunger and a plunger connecting rod connected with a transmission part, so that reciprocating movement is realized in the process of following the rotation of the cylinder body, and liquid suction and liquid discharge are realized.

In the use process of the inclined shaft pump in the prior art, the problem exists that the plunger can generate lateral force perpendicular to the moving direction of the cylinder body in the reciprocating movement process, and in addition, the cylinder body can be influenced by centrifugal force when rotating, and the lateral force and the centrifugal force can generate overturning moment which swings relative to the other end on one end of the cylinder body. Although the cylinder body is rotatably assembled in the shell through the mandrel, an assembly gap and a machining gap still exist between the cylinder body and the mandrel, so that the cylinder body generates deflection. When the cylinder body swings under the overturning moment, a wedge-shaped gap is generated at the joint position of the cylinder body and the port plate, so that one side of the end part of the cylinder body is excessively pressed against the port plate, and the abrasion of the end of the cylinder body is increased along with the rotation of the cylinder body; and a gap exists between the other side of the inclined shaft pump and the valve plate, so that the oil leakage is easy to occur, and the operating efficiency of the inclined shaft pump is reduced.

Disclosure of Invention

The invention aims to provide a flow distribution mechanism of a floating cylinder body of an inclined shaft pump, which aims to solve the technical problems that the cylinder body in the prior art is easy to cause serious eccentric wear and reduced operation efficiency of the inclined shaft pump after being swung by overturning moment.

In order to achieve the purpose, the technical scheme of the flow distribution mechanism of the floating cylinder body of the inclined shaft pump provided by the invention is as follows:

a floating cylinder flow distribution mechanism of a bent axle pump comprises:

the flow distribution plate comprises a shell and an end cover arranged on the shell, wherein a flow distribution plate is arranged on the end cover;

the floating cylinder body flow distribution mechanism of the oblique axis pump further comprises:

the cylinder body is arranged in the shell, a plunger hole is formed in the cylinder body, and a plunger connecting rod assembly is assembled in the plunger hole in a sliding mode;

the transmission gear ring comprises a driven bevel gear which is used for being meshed with the transmission part for transmission, and further comprises a cylinder body which extends towards the end cover, the cylinder body is rotatably assembled in the shell around the axis of the shell, one end, close to the driven bevel gear, in the cylinder body is provided with a blocking wall, and the blocking wall is provided with a through hole for the plunger connecting rod assembly to penetrate through;

the cylinder body is assembled in the cylinder body in a sliding mode along the axial direction of the cylinder body, a swinging gap for enabling the cylinder body to swing and adjust is formed between the cylinder body and the cylinder body, an annular arc boss is arranged on the periphery of the cylinder body, and the top of the arc boss is in clearance fit with the inner wall of the cylinder body, so that the cylinder body can swing and adjust around the top of the arc boss;

the arc boss is provided with a transmission groove extending along the axial direction of the cylinder body, the cylinder body is provided with a transmission pin, and the transmission pin penetrates into the transmission groove to drive the cylinder body to rotate;

and an elastic part is pressed between the blocking wall and the cylinder body and is used for applying elastic force towards the valve plate to the cylinder body.

Has the advantages that: the top of the arc boss is in clearance fit with the inner wall of the cylinder body, and a swing clearance is reserved between the cylinder body and the cylinder body, so that the cylinder body can swing around the top of the arc boss for adjustment; the transmission groove is matched with the transmission pin in a guiding way, so that the cylinder body can axially move relative to the cylinder body and is driven by the cylinder body to rotate; the elastic piece can exert elastic force to the cylinder body, guarantees the laminating between cylinder body and the valve plate after the cylinder body removes, when swinging. When the cylinder body receives overturning moment, the cylinder body can axially move and swing in the cylinder body, the automatic fitting of the cylinder body and the valve plate is realized through the elastic piece, the wedge-shaped gap in the prior art is avoided, and the high-efficiency and long-term normal use of the inclined shaft pump is ensured.

Preferably, a radial mounting hole is formed in the cylinder of the transmission gear ring, and the transmission pin is assembled in the mounting hole in an interference manner. The transmission pin is excessively assembled in a mode of arranging the mounting hole, the transmission pin and the barrel are processed in a split mode and then assembled, and the whole processing and assembling are convenient.

Preferably, the mounting holes are provided with a plurality of and are circumferentially and uniformly distributed on the cylinder body. Through the mounting hole that sets up a plurality of circumference equipartitions for each driving pin is more stable when driving the cylinder body rotation.

Preferably, the transmission gear ring is rotatably assembled in the shell through a bearing, the inner ring of the bearing is sleeved outside the cylinder of the transmission gear ring, and the outer ring of the bearing is fixedly assembled on the shell; the top of the arc boss and the axial center of the bearing are arranged along the radial direction. The circular arc boss bears main overturning moment when in use, and the circular arc boss and the bearing center position are correspondingly arranged, so that acting force can be better transmitted to the bearing, and the overturning degree of the cylinder body is reduced.

Preferably, the bearing is a double row angular contact ball bearing. The double-row angular contact ball bearing can bear bidirectional axial load and is suitable for being used under a high-speed working condition.

Preferably, the transmission gear ring is rotatably assembled in the shell through a bearing, an inner ring of the bearing is sleeved outside a cylinder of the transmission gear ring, and an outer ring of the bearing is fixedly assembled on the shell; a gear ring boss is arranged on the outer portion of one end, close to the driven bevel gear, of the cylinder body, an inner ring fixing nut is assembled on the outer portion of one end, close to the valve plate, of the cylinder body in a threaded mode, and the gear ring boss and the inner ring fixing nut are matched with and clamp an inner ring of the bearing in the axial direction.

Preferably, a shell boss is arranged on the inner side of one end, close to the valve plate, of the shell, an outer ring fixing nut is assembled on the inner side of one end, close to the driven bevel gear, of the shell in a threaded mode, and the shell boss and the outer ring fixing nut are matched with the outer ring of the clamping bearing in the axial direction.

Preferably, the blocking wall is integrally formed with the drive ring gear. The processing cost is saved while the processing of the transmission gear ring is convenient.

Preferably, the circular arc boss on the outer periphery of the cylinder body is arranged at one end of the cylinder body close to the blocking wall. When the cylinder is used, one end of the cylinder body, which is close to the blocking wall, bears the lateral force, and the arc boss is arranged at the end, so that the lateral force can be better borne and transmitted.

Preferably, the elastic member is a pressure spring; the cylinder body is close to the one end center department of keeping off the wall and has seted up the mounting groove, the pressure spring inlays and installs in the mounting groove. The installation of offering of mounting groove supplies the elastic component installation to place, and the elastic component adopts the pressure spring, and is with low costs and elasticity is great, improves the tight effect in top of cylinder body and valve plate.

Drawings

FIG. 1 is a structural sectional view of a flow distribution mechanism of a floating cylinder body of an oblique axis pump provided by the invention;

FIG. 2 is a cross-sectional view of the ring gear of FIG. 1;

FIG. 3 is a left side elevational view of the ring gear of FIG. 1;

FIG. 4 is a schematic structural view of the cylinder body in FIG. 1;

fig. 5 is a cross-sectional view of the cylinder of fig. 1.

Description of reference numerals:

1. a housing; 2. an end cap; 3. a transmission gear ring; 4. a drive pin; 5. a cylinder body; 6. a valve plate; 7. a double row angular contact ball bearing; 8. a pressure spring; 9. mounting grooves; 10. fixing a nut on the outer ring; 11. the inner ring is fixed with a nut; 12. a plunger link assembly; 13. a plunger hole; 14. a circular arc boss; 15. a transmission groove; 16. driven bevel gears; 17. mounting holes; 18. an external threaded section; 19. a barrel; 20. a through hole; 21. a retaining wall; 22. a boss of the shell; 23. a gear ring boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be 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. Also, 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, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The invention provides a specific embodiment 1 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

as shown in figure 1, the floating cylinder block flow distribution mechanism of the inclined shaft pump comprises a shell 1, an end cover 2, a cylinder block 5, a transmission gear ring 3, a flow distribution plate 6, a plunger connecting rod assembly 12 and a double-row angular contact ball bearing 7. The end cover 2 is fixed on the shell 1, the valve plate 6 is fixed on the inner side of the end cover 2, the transmission gear ring 3 is rotatably assembled in the shell 1 through a double-row angular contact ball bearing 7, the cylinder body 5 is assembled in the transmission gear ring 3, the transmission gear ring 3 can drive the cylinder body 5 to rotate, the cylinder body 5 can axially move and swing relative to the transmission gear ring 3, a pressure spring 8 is arranged between the cylinder body 5 and the transmission gear ring 3, and the pressure spring 8 is used for driving the cylinder body 5 so that the cylinder body 5 can be attached to the valve plate 6.

For convenience of description, the end of the housing 1 connected with the transmission part of the oblique axis pump is defined as a front end in the present embodiment. The end cover 2 is installed on the rear end of the shell 1 through bolts, and the port plate 6 is fixed with the end cover 2 into a whole through pins or screws.

The structure of the drive ring gear 3 is as shown in fig. 2 and 3, and the drive ring gear 3 comprises a driven bevel gear 16 arranged at the front end and a cylinder 19 extending towards the end cover 2. The driven bevel gear 16 is used for meshing with a gear of a transmission part of the inclined shaft pump, so that the transmission part drives the transmission gear ring 3 to rotate. The cylinder 19 is used for installing the cylinder 5, a blocking wall 21 is integrally processed in the cylinder 19 at the rear end of the driven bevel gear 16, wherein the blocking wall 21 is arranged close to the front, and a through hole 20 corresponding to the position of the plunger hole 13 in the cylinder 5 is formed in the blocking wall 21, so that the plunger connecting rod assembly 12 extends out of the cylinder 5 and then penetrates through the transmission gear ring 3 to be connected with a transmission part. In this embodiment, the through holes 20 are seven and circumferentially and uniformly distributed. The outer periphery of the cylinder 19 is provided with a gear ring boss 23, the gear ring boss 23 is arranged backwards, the gear ring boss 23 is blocked with the front end of the inner ring of the double-row angular contact ball bearing 7, the rear end of the transmission gear ring 3 sleeved with the cylinder 19 is provided with an external thread section 18, the external thread section 18 is screwed with the inner ring fixing nut 11, the inner ring of the double-row angular contact ball bearing 7 is clamped forwards and backwards through the gear ring boss 23 and the inner ring fixing nut 11, and the transmission gear ring 3 and the inner ring of the double-row angular contact ball bearing 7 are fixedly assembled together.

As shown in fig. 2, two mounting holes 17 are formed in the side wall of the cylinder 19, the two mounting holes 17 radially penetrate through the cylinder 19, and the mounting holes 17 are used for interference fitting of the driving pin 4.

In order to mount the double row angular contact ball bearing 7, as shown in fig. 1, a housing boss 22 is provided on the inner wall of the housing 1, and the housing boss 22 is disposed forward and stops at the rear end of the outer ring of the double row angular contact ball bearing 7. An outer ring fixing nut 10 is further screwed on the inner wall of the shell 1, the outer ring fixing nut 10 is matched with the shell boss 22 to clamp the outer ring of the double-row angular contact ball bearing 7 in a front-back mode, and the outer ring of the double-row angular contact ball bearing 7 is fixed with the shell 1.

The structure of the cylinder 5 is as shown in fig. 4 and 5, a plunger hole 13 is formed in the cylinder 5, a plunger connecting rod assembly 12 is slidably assembled in the plunger hole 13, the plunger connecting rod assembly 12 comprises a plunger and a plunger connecting rod, and the plunger connecting rod penetrates through the plunger hole 13. The front end of the cylinder body 5 is further provided with a mounting groove 9, a pressure spring 8 is embedded in the mounting groove 9, the front end of the pressure spring 8 is pressed against the blocking wall 21 when the pressure spring is used, and the rear end of the pressure spring is pressed against the bottom of the mounting groove 9, so that elastic force towards the valve plate 6 can be applied to the cylinder body 5.

Be provided with annular circular arc boss 14 on cylinder body 5 front end periphery, drive slot 15 has been seted up on circular arc boss 14, drive slot 15 runs through circular arc boss 14 around, the quantity and the position of drive slot 15 and drive pin 4 one-to-one, drive pin 4 inserts back in drive slot 15, can make drive ring gear 3 drive cylinder body 5 rotate, and simultaneously, drive pin 4 can be in drive slot 15 back-and-forth movement for cylinder body 5 can be for the back-and-forth movement of drive ring gear 3.

During assembly, the double-row angular contact ball bearing 7 is fixed on the shell 1, the transmission pin 4 is assembled on the cylinder 19 in an interference manner, and then the transmission gear ring 3 is installed in the double-row angular contact ball bearing 7 from front to back; and then installing a plunger connecting rod assembly 12 and a pressure spring 8, installing the plunger connecting rod assembly and the pressure spring into the cylinder body 5 from the rear end of the cylinder body 19, penetrating a transmission pin 4 into a transmission groove 15 of the cylinder body 5, and pressing the pressure spring 8. The port plate 6 is then mounted on the end cap 2 and the end cap 2 is bolted to the rear end of the housing 1.

After the assembly is completed, a radial gap is formed between the part of the cylinder body 5 except the arc boss 14 and the cylinder body 19, and the cylinder body 5 can swing around the top of the arc boss 14, so that the radial gap forms a swing gap. As shown in fig. 1, the top of the circular arc boss 14 corresponds to the axial center position of the double row angular contact ball bearing 7.

In this embodiment, when the rotational speed of the transmission part is too high, the cylinder body 5 is subjected to the overturning moment, and the cylinder body 5 is applied to swing, so that the cylinder body 5 can automatically return to the original position under the action of the pressure spring 8 and keep being attached to the port plate 6 due to the fact that the cylinder body 5 can swing and move, the occurrence of wedge-shaped gaps between the cylinder body 5 and the port plate 6 is prevented, and errors in processing and assembling can be made up. In the present embodiment, the pressing spring 8 constitutes an elastic member that applies an elastic force to the cylinder 5.

In this embodiment, the number of the plunger holes 13 is 7, in other embodiments, the number of the plunger holes can be increased or decreased to odd numbers of 5, 9, 11 and the like according to the common knowledge of plunger holes of the oblique axis pump and the actual pump body requirement, and at this time, the number and the positions of the through holes 20 and the plunger holes 13 also need to be in one-to-one correspondence.

The invention provides a specific embodiment 2 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the compression spring 8 constitutes an elastic member that presses the cylinder 5, and an installation groove 9 for installing the compression spring 8 is further opened in the center of the front end of the cylinder 5. In this embodiment, the compression spring may be replaced with an elastic rubber block. In other embodiments, the mounting groove is formed in the center of the blocking wall. In other different embodiments, the retaining wall and the cylinder body are provided with mounting grooves which are matched with the elastic piece to be pressed. Or, in other different embodiments, the installation groove is eliminated, the cylinder body is provided with the guide post, and the pressure spring is fixedly sleeved on the guide post.

The invention provides a specific embodiment 3 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the ring gear 3 is rotatably fitted in the housing 1 by a double row angular contact ball bearing 7. In the present embodiment, the bearing is a deep groove ball bearing or a knuckle bearing, or other different types of bearings. In other embodiments, the bearing may be replaced with a bushing.

The invention provides a specific embodiment 4 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the circular arc boss 14 is provided at the end of the cylinder 5 adjacent to the stopper wall 21. In this embodiment, the circular arc boss may be disposed at the middle of the outer periphery of the cylinder body or at another position near one end of the port plate.

The invention provides a concrete embodiment 5 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the stopper wall 21 is integrally formed with the ring gear 3. In this embodiment, the blocking wall is fixed in the cylinder body in a split manner, and the blocking wall can be formed by a baffle or a blocking platform.

The invention provides a concrete embodiment 6 of the floating cylinder body flow distribution mechanism of the inclined shaft pump:

the difference from embodiment 1 is that in embodiment 1, a housing boss 22 for stopping the rear end of the outer ring of the bearing is provided in the housing 1, an outer ring fixing nut 10 is provided on the inner wall of the front end of the housing 1, and the housing boss 22 and the outer ring fixing nut 10 clamp the outer ring of the bearing in the housing 1. In this embodiment, the boss of the housing may be replaced with a fixing nut.

The invention provides a specific embodiment 7 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, a gear ring boss 23 is provided on the outer periphery of the front end of the cylinder 19, an external thread section 18 is provided on the outer periphery of the cylinder 19 at the rear end, and the inner ring fixing nut 11 is screwed on the external thread section 18. In the embodiment, the arrangement positions of the gear ring boss and the external thread section can be exchanged. In other embodiments, the gear ring boss may be replaced with a nut.

The invention provides a specific embodiment 8 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the top of the circular arc boss 14 corresponds to the center of the bearing outside the ring gear 3. In this embodiment, the top of the circular arc boss may be arranged axially offset from the center of the bearing.

The invention provides a specific embodiment 9 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, two radial mounting holes 17 are symmetrically formed in the cylindrical body 19 of the ring gear 3. In this embodiment, the quantity of mounting hole can increase, and a plurality of mounting hole circumference equipartitions are on the barrel, and the quantity that corresponds the transmission round pin that sets up in the mounting hole this moment also increases, and in the same way, the transmission slot that the transmission round pin corresponds also adds. In fact, even if only one driving pin is provided, the purpose of driving the cylinder body to rotate can be achieved.

The invention provides a specific embodiment 10 of a floating cylinder body flow distribution mechanism of an inclined shaft pump, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, a radial mounting hole 17 is formed in the cylindrical body 19, and the driving pin 4 is interference-fitted in the mounting hole 17. In this embodiment, the drive pin and the barrel are integrally formed.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.