Integrated adjustable pump

Abstract

The invention discloses an integrated adjustable pump which comprises a pump body, an oil distribution assembly, a driving assembly and an executing mechanism. The oil distribution assembly comprises a swash plate, a ball head support, a plurality of ball head connecting rods and a plurality of plungers, and the two ends of the ball head connecting rods are hinged to the swash plate and the corresponding plungers respectively. The driving assembly comprises a driving shaft, a limiting disc, a dip angle disc and multiple guide columns, the driving shaft is fixedly connected with the limiting disc, one end of each guide column is in spherical hinge connection with the dip angle disc, and the other end movably penetrates through the limiting disc to make contact with the swash plate. The actuator is used for driving the tilt disc to rotate to change the tilt relative to the axis of the drive shaft. According to the plunger pumping system, static distribution of liquid by the cylinder body is achieved, energy loss is reduced, and conveying pressure is improved. The multiple guide columns drive the inclination angle disc through the execution mechanism to achieve inclination angle adjustment of the limiting face during rotation, then the movement stroke of the inclined disc and the movement stroke of the plunger are sequentially changed, and the pumping flow is adjustable and controllable.

Description

Technical Field

[0001] The invention belongs to the technical field of pumps, in particular to an integrated adjustable pump. Background Art

[0002] In the field of hydraulic systems and fluid transportation, the plunger pump is a commonly used high-efficiency pump type. Its core components are the cylinder and the plunger. The basic working principle is that the plunger reciprocates in the cylinder, causing the volume change in the cylinder to form a pressure difference, thereby driving the flow of liquid and realizing the suction and discharge of liquid. Due to its compact structure, the plunger pump can be equipped with multiple plungers in one cylinder at the same time with continuous stroke, and has the advantages of small size, high pressure, and high efficiency. The structural forms of the plunger pump are various, including the inclined plate plunger pump and the inclined axis plunger pump.

[0003] There is a certain oblique angle between the drive shaft and the cylinder body of the inclined axis plunger pump. When the drive shaft rotates, it drives the cylinder body to rotate together, so that the plunger in the cylinder body produces reciprocating motion. This pump can withstand higher working pressures due to low friction and energy loss, but it is usually unable to adjust the pumping flow rate due to the transmission form. The characteristic of the inclined plate plunger pump is that multiple plungers are installed in the cylinder body, and the reciprocating motion of the plunger is achieved by a swash plate that is at a certain angle to the drive shaft. When the drive shaft rotates, it drives the cylinder body to rotate, and the cylinder body drives multiple plungers inside to revolve synchronously. Under the transmission effect of the plunger, the swash plate always rotates on the same inclined surface under the limit of the inclination plate, so that the plunger produces reciprocating motion in the cylinder body.

[0004] The angle of the swash plate of the swash plate can be adjusted by the tilt plate (the tilt plate is controlled by a hydraulic cylinder to change the tilt angle), and thus the pumping flow rate can be adjusted. This feature makes it particularly suitable for systems that require variable flow. However, in order to achieve adjustable flow, the drive shaft of the swash plate plunger pump needs to drive the entire cylinder body to rotate, and the oil distribution end of the cylinder body needs to realize the input and output of liquid through a static oil distribution plate, which makes the friction loss between the cylinder body and the oil distribution plate, between the cylinder body and the casing, and between the swash plate and the tilt plate extremely large. In addition, the load effect of the cylinder body rotation on the drive shaft leads to a small operating pressure range of the swash plate plunger pump. Summary of the invention

[0005] The object of the present invention is to provide an integrated adjustable pump to solve the problems raised in the above-mentioned prior art.

[0006] An integrated adjustable pump is provided, comprising:

[0007] A pump body, comprising a casing and a cylinder, wherein the cylinder is fixedly connected to one end of the casing;

[0008] An oil distribution assembly, comprising a swash plate, a ball support, a plurality of ball connecting rods and a plurality of plungers, wherein the plurality of plungers are arranged inside the cylinder body, one end of the ball support is fixedly connected to the cylinder body and the other end is hinged to the swash plate, and the two ends of the plurality of ball connecting rods are respectively hinged to the swash plate and the corresponding plungers;

[0009] A driving assembly, comprising a driving shaft, a limit plate, an inclining plate and a plurality of guide posts, wherein the driving shaft is rotatably connected to the housing and movably penetrates the inclining plate and is fixedly connected to the limit plate, and the plurality of guide posts are arranged along the circumference of the inclining plate, one end of the guide post is connected to the inclining plate ball joint and the other end movably penetrates the limit plate and contacts the slanting plate;

[0010] The actuator is used to drive the tilt plate to rotate so as to change the tilt angle relative to the axis of the drive shaft.

[0011] As a further embodiment of the present invention: the end of the guide column that contacts the swash plate forms an arc surface.

[0012] As a further embodiment of the present invention: the end of the guide column is rollingly connected with a ball head, and the guide column is in contact with the swash plate through the ball head.

[0013] As a further embodiment of the present invention: the actuator is an electromagnet, which is in a circular ring shape and surrounds the periphery of the driving shaft and is fixed on the casing. The inclination plate is circumferentially provided with a magnet disk, which is arranged opposite to the actuator, and an elastic resistance member is provided on the inclination plate.

[0014] As a further embodiment of the present invention: a bidirectional ball joint is provided at a portion of the drive shaft that contacts the inclinometer plate, and an inner wall of the inclinometer plate fits the shape of the bidirectional ball joint.

[0015] As a further embodiment of the present invention: the elastic resistance member is a torsion spring, the torsion spring is arranged in a two-way ball joint, one end of the torsion spring is arranged in the two-way ball joint and the other end is arranged in the inclinometer plate.

[0016] As a further embodiment of the present invention: the outer periphery of the bidirectional ball joint is provided with a plurality of splines arranged along the radial direction of the drive shaft, the splines extend along the axial direction of the drive shaft and have a spherical surface protruding outwardly relative to the bidirectional ball joint.

[0017] As a further embodiment of the present invention: the end ball joint of the guide column is elastically connected to the inclinometer plate.

[0018] As a further embodiment of the present invention: an oil chamber is formed between the interior of the casing and the cylinder body, a delivery channel is formed inside the cylinder body, a connecting channel is formed inside the plunger, the connecting channel connects the oil chamber with the delivery channel, a first one-way valve is arranged in the connecting channel, and a second one-way valve is arranged in the delivery channel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The pumping system provided by the present invention drives the swash plate to move through a driving assembly with an inclined rotating surface. Since the swash plate and the driving assembly have a relative rotational freedom, and the swash plate is simultaneously limited by the ball head support and a plurality of plungers, the swash plate realizes a motion form in which each structural unit thereon reciprocates in the axial direction of the drive shaft, and thus the swash plate can drive the plunger to reciprocate in the cylinder body through the ball head connecting rod without the need to rotate the cylinder body synchronously. The plunger pumping system realizes the static delivery of liquid by the cylinder body, reduces energy loss, and increases the delivery pressure.

[0021] 2. The inclined rotating surface of the drive assembly is formed by a plurality of guide columns arranged relatively front and rear in the direction of the drive shaft axis. The plurality of guide columns can rotate synchronously with the drive shaft through the limit of the limit plate, thereby limiting the swash plate and guiding each structural unit on the swash plate to achieve forward and backward reciprocating motion. Since the contact surface between the guide column and the swash plate is extremely small, the friction zone of the swash plate is limited to a very small range, which reduces the wear rate of the swash plate.

[0022] 3. The inclination angle of the incline plate can be changed under the drive of the actuator. The multiple guide columns can slide relative to the limit plate through the rotation of the incline plate to change the relative position between each guide column, thereby changing the inclined limit surface formed by the ends of the multiple guide columns. After the inclination angle of the inclined limit surface changes, the limit angle of the swash plate changes at the same time during rotation, so that the forward and backward reciprocating motion stroke of each structural unit on the swash plate is expanded or reduced, thereby changing the sliding stroke of the plunger and realizing the pumping flow control of the pumping system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present drawings or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present drawings. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of an integrated adjustable pump;

[0025] Figure 2 The oil distribution structure diagram of the cylinder body and the plunger provided by the present invention;

[0026] Figure 3 A partial structural schematic diagram of the guide column provided by the present invention.

[0027] In the figure: 11, casing; 12, cylinder body; 121, delivery channel; 122, second one-way valve; 13, oil chamber; 21, inclined plate; 22, ball head support; 23, ball head connecting rod; 24, plunger; 241, connecting channel; 242, first one-way valve; 31, drive shaft; 311, two-way ball joint; 312, torsion spring; 313, spline; 32, limit plate; 33, inclination plate; 34, guide column; 341, ball head; 35, magnet plate; 4, actuator. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0029] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0030] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate understanding by those skilled in the art. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present application and are not intended to limit the subject matter described in the claims.

[0031] See also Figure 1As shown, the integrated adjustable pump in the embodiment of the present invention includes a pump body, an oil distribution assembly, a drive assembly and an actuator 4. The pump body includes a housing 11 and a cylinder body 12, and the cylinder body 12 is fixedly connected to one end of the housing 11. The oil distribution assembly includes a swash plate 21, a ball head support 22, a plurality of ball head connecting rods 23 and a plurality of plungers 24, and the plurality of plungers 24 are arranged inside the cylinder body 12, one end of the ball head support 22 is fixedly connected to the cylinder body 12 and the other end is hinged to the swash plate 21, and the two ends of the plurality of ball head connecting rods 23 are respectively hinged to the swash plate 21 and the corresponding plungers 24. The driving assembly includes a driving shaft 31, a limit plate 32, an inclining plate 33, and a plurality of guide posts 34. The driving shaft 31 is rotatably connected to the housing 11 and movably passes through the inclining plate 33 and then is fixedly connected to the limit plate 32. The plurality of guide posts 34 are arranged along the circumference of the inclining plate 33. One end of the guide post 34 is ball-jointedly connected to the inclining plate 33 and the other end movably passes through the limit plate 32 and then contacts the swash plate 21. The actuator 4 is used to drive the inclining plate 33 to rotate to change the inclination angle relative to the axis of the driving shaft 31.

[0032] The oil distribution assembly is integrally arranged inside the cylinder body 12 and the housing 11, and the drive assembly and the actuator 4 are integrally arranged inside the housing 11. The cylinder body 12 is fixed to one end of the housing 11, and the drive shaft 31 is introduced from the other end of the housing 11 and is rotatably connected to the housing 11. The driving process of the adjustable pump of the present invention is specifically that the drive shaft 31 rotates and synchronously drives the limit plate 32 fixedly connected thereto to rotate. The limit plate 32 is provided with a plurality of guide columns 34 arranged front and rear in the axial direction of the drive shaft 31 in the circumferential direction, and the ends of the plurality of guide columns 34 form a limit surface with a certain travel range during the rotation process and produce a limit driving effect on the swash plate 21. The center of the swash plate 21 is spherically jointed on the cylinder body 12 through the ball head support 22, and the outer portion of the swash plate 21 limits the rotational freedom between the swash plate 21 and the cylinder body 12 through the limit of the plunger 24, so that each cross section of the swash plate 21 can reciprocate at a certain angle on the corresponding plane centered on the ball joint of the ball head support 22, and then drive the plunger 24 at the corresponding position to slide back and forth in the cylinder body 12 through the ball head connecting rod 23, thereby realizing the volume change in the cylinder body 12.

[0033] The swash plate 21 and the plunger 24 are respectively hinged by ball joints at both ends of the ball head connecting rod 23, which can adapt to the size change between the cross section of the swash plate 21 and the plunger 24 when the cross section rotates on the ball head support 22, avoiding interference problems.

[0034] When the displacement of the pump needs to be adjusted, the actuator 4 drives the incline plate 33 to rotate to change the inclination of the incline plate 33. During the rotation of the incline plate 33, the guide posts 34 in the circumferential direction are pulled back or pushed forward respectively, and the guide posts 34 are ensured to move along the axial direction of the drive shaft 31 under the limiting action of the limiting plate 32. Then, the inclination angle of the inclined guide surface formed by the end of each guide post 34 changes with the rotation of the incline plate 33, so that when the swash plate 21 rotates and slides, the wave-shaped motion trajectory of the swash plate 21 produces a stroke expansion or contraction change, thereby changing the motion stroke of the plunger 24 to achieve adjustable flow.

[0035] The ball joint at the end of the guide column 34 is elastically connected to the inclinometer plate 33. An elastic cushion layer is provided between the ball joint and the hinge support of the inclinometer plate 33. The elastic cushion layer can be a rubber cushion layer, etc., so that the guide column 34 and the inclinometer plate 33 have a small degree of freedom of translation in addition to the degree of freedom of rotation. When the inclinometer plate 33 rotates, automatic adaptation is achieved through a small movement between the guide column 34 and the inclinometer plate 33, avoiding interference problems caused by hard connection.

[0036] Specifically, the end of the guide post 34 that contacts the swash plate 21 forms an arc surface. The arc surface can make the guide post 34 slide smoothly relative to the swash plate 21, avoid the sharp part of the guide post 34 from scratching the surface of the swash plate 21, and keep the contact area between the guide post 34 and the swash plate 21 at a small level regardless of the angle at which the guide post 34 contacts the swash plate 21, thereby minimizing the friction zone area generated by the guide post 34 on the surface of the swash plate 21.

[0037] For further information, see Figure 1 and Figure 3 As shown, the end of the guide column 34 is rollingly connected with a ball head 341, which is partially covered inside the guide column 34 and has rolling freedom in all directions inside the guide column 34, and partially exposed to the outside to contact the swash plate 21. When the guide column 34 slides relative to the swash plate 21, the ball head 341 interacts with the swash plate 21 in a rolling contact manner, thereby greatly reducing friction and reducing wear between the guide column 34 and the swash plate 21. A plurality of smaller balls can be filled between the ball head 341 and the inner wall of the guide column 34 to ensure that the ball head 341 slides smoothly inside the guide column 34.

[0038] Specifically, the actuator 4 is an electromagnet, which is in a circular ring shape and surrounds the periphery of the drive shaft 31 and is fixed on the housing 11. The inclinometer 33 is provided with a magnet disk 35 along the circumferential ring, and the magnet disk 35 is a magnetic metal, and the magnet disk 35 is arranged opposite to the actuator 4. When the actuator 4 is not powered on, it has no magnetism, and there is no relative action between it and the magnet disk 35, and the inclinometer 33 is in a free state. When the actuator 4 is powered on, a magnetic field is generated, which attracts or repels the magnet disk 35 to control the rotation of the inclinometer 33, and then controls the sliding of multiple guide columns 34, and the rotation angle of the inclinometer 33 can be controlled by the current intensity of the electromagnet. The elastic resistance member is used to give the inclinometer 33 a reverse force when the actuator 4 generates a force on the inclinometer 33, and to limit the inclinometer 33 to an initial position. The electromagnet can maintain the magnetic field strength by maintaining the current strength, so that the actuator 4 and the inclination plate 33 are kept in a balanced state, ensuring that the inclination plate 33 will not change its inclination angle by itself when rotating to affect the pumping displacement.

[0039] Furthermore, a bidirectional ball joint 311 is provided at the part of the driving shaft 31 that contacts the inclining plate 33, and the inner wall of the inclining plate 33 fits the shape of the bidirectional ball joint 311. The inclining plate 33 can stably rotate with the bidirectional ball joint 311 as the central axis, and a limit is formed between the arc surface of the bidirectional ball joint 311 and the inclining plate 33, which can hinder the inclining plate 33 from moving in the axial direction of the driving shaft 31, and only has the freedom of rotation, ensuring that the relative distance between each guide column 34 and the swash plate 21 will not change due to the translation of the inclining plate 33.

[0040] The elastic resistance member is specifically a torsion spring 312. The torsion spring 312 is arranged in the two-way ball joint 311, and one end of the torsion spring 312 is arranged in the two-way ball joint 311 and the other end is arranged in the inclinometer plate 33. The torsion spring 312 is located between the two-way ball joint 311 and the inclinometer plate 33, and is used to give the inclinometer plate 33 an initial limit point, and to give the inclinometer plate 33 a reverse force when the interaction force is generated between the actuator 4 and the magnet disk 35. Since the force applied by the actuator 4 on the inclinometer plate 33 is fixed, and the greater the inclination angle of the inclinometer plate 33 relative to the initial limit point, the greater the reverse force of the torsion spring 312 is, when the inclinometer plate 33 rotates to a certain extent, a balancing force is formed between the actuator 4 and the torsion spring 312 to maintain the state of the inclinometer plate 33 at this time. When the actuator 4 is closed, the inclinometer plate 33 is reset under the action of the torsion spring 312.

[0041] In one embodiment, the initial limit point generated by the torsion spring 312 on the inclination plate 33 can be located at the most commonly used displacement position of the adjustment pump, at which time the actuator 4 can be not started or started at a low power state. When the pump displacement needs to be reduced, a repulsive force is generated between the actuator 4 and the magnet disk 35, driving the inclination plate 33 to rotate in the direction of forming a vertical state with the drive shaft 31; and when the pump displacement needs to be increased, an attractive force is generated between the actuator 4 and the magnet disk 35, driving the inclination plate 33 to rotate in the direction of forming a parallel state with the drive shaft 31. In this way, the power of the actuator 4 can be adjusted within the smallest adjustment range.

[0042] It should be noted that although the actuator 4 generates a magnetic field with the same strength and direction in the circumferential direction, when the various structural points of the inclinometer plate 33 have different distances from the actuator 4 in the circumferential direction, the forces between the various structural points on the inclinometer plate 33 and the actuator 4 are different, which is reflected in that the closer the position is to the actuator 4, the greater the force is, and the farther the position is, the smaller the force is. Therefore, although the entire circumferential direction of the inclinometer plate 33 is subject to repulsive or attractive forces, the inclinometer plate 33 can still be driven to rotate due to the different distribution of forces. Therefore, the initial posture of the inclinometer plate 33 generated by the limit of the torsion spring 312 needs to be inclined relative to the drive shaft 31. In addition, the magnet disk 35 can also be only partially set on the inclinometer plate 33, so that only a partial structure of the inclinometer plate 33 exists to generate a magnetic field effect with the actuator 4.

[0043] In another embodiment, the elastic resistance member is two springs, and the two springs are respectively located between the two tilting extreme ends of the incline plate 33 and the limit plate 32. This solution can also achieve the limiting effect on the incline plate 33, but compared with the torsion spring 312 solution, the structure is not compact enough, and it will be affected by the centrifugal force during the rotation of the drive assembly, and it is not suitable for using too long springs.

[0044] The outer periphery of the two-way ball joint 311 is provided with a plurality of splines 313 arranged along the radial direction of the drive shaft 31. The splines 313 extend along the axial direction of the drive shaft 31 and have a spherical surface protruding outward relative to the two-way ball joint 311. While maintaining the basic rotation function, the drive shaft 31 can transmit torque to the inclinometer plate 33 through the splines 313 to reduce the torsional force received by the guide column 34 when driving the inclinometer plate 33 to rotate, thereby enhancing the overall stability of the drive assembly and reducing the number or size of the guide columns 34.

[0045] In one embodiment, see Figure 1 and Figure 2As shown, an oil chamber 13 is formed between the interior of the casing 11 and the cylinder body 12, a delivery channel 121 is formed inside the cylinder body 12, and a connecting channel 241 is formed inside the plunger 24. The connecting channel 241 connects the oil chamber 13 with the delivery channel 121. A first one-way valve 242 is provided in the connecting channel 241, and a second one-way valve 122 is provided in the delivery channel 121.

[0046] When the plunger 24 moves toward the oil chamber 13, the volume of the oil distribution chamber space between the plunger 24 and the cylinder body 12 increases to form a negative pressure inside, and the liquid in the oil chamber 13 enters the oil distribution chamber after pushing open the first one-way valve 242 through the connecting channel 241, and the second one-way valve 122 is closed to prevent the liquid in the delivery channel 121 from entering the oil distribution chamber. When the plunger 24 moves toward the delivery channel 121, the volume of the oil distribution chamber space between the plunger 24 and the cylinder body 12 decreases to form a positive pressure inside, and the first one-way valve 242 is closed to prevent the liquid in the oil distribution chamber from entering the oil chamber 13, and the liquid in the oil distribution chamber pushes open the second one-way valve 122 to enter the delivery channel 121 and is discharged to the outside, thereby realizing a liquid discharge cycle.

[0047] The first one-way valve 242 is composed of a spring and a valve ball, and the valve ball is stopped by the spring at one end of the communication channel 241 close to the oil chamber 13. The second one-way valve 122 is composed of a spring and a valve ball, and the valve ball is stopped by the spring at one end of the delivery channel 121 close to the oil distribution chamber. Automatic control of the one-way valve can be achieved.

[0048] It should be noted that the oil distribution form between the plunger 24 and the cylinder 12 can be selected as needed, and the oil chamber 13 may not be used for oil distribution, but the oil distribution channels are set between the cylinder 12 and the plunger 24. The present invention only provides an embodiment of an oil distribution method, which is not limited here.

[0049] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. An integrated adjustable pump, characterized in that: include: A pump body, comprising a casing (11) and a cylinder body (12), wherein the cylinder body (12) is fixedly connected to one end of the casing (11); An oil distribution assembly, comprising a swash plate (21), a ball head support (22), a plurality of ball head connecting rods (23) and a plurality of plungers (24), wherein the plurality of plungers (24) are arranged inside a cylinder body (12), one end of the ball head support (22) is fixedly connected to the cylinder body (12) and the other end is hinged to the swash plate (21), and the two ends of the plurality of ball head connecting rods (23) are respectively hinged to the swash plate (21) and the corresponding plungers (24); A drive assembly, comprising a drive shaft (31), a limit plate (32), an inclining plate (33) and a plurality of guide columns (34); the drive shaft (31) is rotatably connected to the housing (11) and movably passes through the inclining plate (33) and then is fixedly connected to the limit plate (32); the plurality of guide columns (34) are arranged along the circumference of the inclining plate (33); one end of the guide column (34) is ball-jointedly connected to the inclining plate (33) and the other end of the guide column (34) movably passes through the limit plate (32) and then contacts the slanting plate (21); An actuator (4) is used to drive the inclination plate (33) to rotate so as to change the inclination angle relative to the axis of the drive shaft (31).

2. An integrated adjustable pump according to claim 1, characterized in that: The end of the guide column (34) that contacts the swash plate (21) forms an arc surface.

3. An integrated adjustable pump according to claim 2, characterized in that: The end of the guide column (34) is rollingly connected with a ball head (341), and the guide column (34) is in contact with the swash plate (21) via the ball head (341).

4. The integrated adjustable pump according to claim 1, characterized in that: The actuator (4) is an electromagnet. The actuator (4) is in a circular ring shape and surrounds the periphery of the drive shaft (31) and is fixed on the housing (11). The inclination plate (33) is provided with a magnet plate (35) along the circumferential direction. The magnet plate (35) is arranged opposite to the actuator (4). An elastic resistance member is provided on the inclination plate (33).

5. The integrated adjustable pump according to claim 4, characterized in that: A bidirectional ball joint (311) is provided at a portion of the driving shaft (31) that contacts the inclinometer plate (33), and an inner wall of the inclinometer plate (33) is in conformity with the shape of the bidirectional ball joint (311).

6. The integrated adjustable pump according to claim 5, characterized in that: The elastic resistance member is a torsion spring (312), and the torsion spring (312) is arranged in the bidirectional ball joint (311), one end of the torsion spring (312) is arranged in the bidirectional ball joint (311) and the other end is arranged in the inclinometer (33).

7. The integrated adjustable pump according to claim 5, characterized in that: The bidirectional ball joint (311) is provided with a plurality of splines (313) radially arranged along the drive shaft (31) on its periphery. The splines (313) extend axially along the drive shaft (31) and have a spherical surface protruding outwardly relative to the bidirectional ball joint (311).

8. The integrated adjustable pump according to claim 1, characterized in that: The end ball joint of the guide column (34) is elastically connected to the tilting plate (33).

9. The integrated adjustable pump according to claim 1, characterized in that: An oil chamber (13) is formed between the casing (11) and the cylinder body (12), a delivery channel (121) is formed inside the cylinder body (12), a connecting channel (241) is formed inside the plunger (24), the connecting channel (241) connects the oil chamber (13) and the delivery channel (121), a first one-way valve (242) is arranged in the connecting channel (241), and a second one-way valve (122) is arranged in the delivery channel (121).

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