Plunger pump swash plate zero position measuring and adjusting tool and method

Abstract

The invention relates to the field of measuring tools, in particular to a plunger pump swash plate zero position measuring and adjusting tool and method.The measuring and adjusting tool comprises a positioning part and a measuring part, the positioning part is used for installing a tool on a plunger pump, and the measuring part is installed on the positioning part and can move in the first direction relative to the plunger pump; the measuring part can measure the distance between the swash plate and the measuring end in the second direction, the plane where the first direction is located is perpendicular to the second direction, the measuring part and the swash plate are located at different relative positions by operating the measuring part, the to-be-detected distance between the measuring end and the different positions on the swash plate can be obtained, and the swash plate can be measured based on the obtained value of the to-be-detected distance. According to the swash plate adjusting device, the posture state of the swash plate can be judged, the swash plate can be adjusted according to the posture state of the swash plate, only the measuring part and the positioning part need to be correspondingly operated in the measuring process, the swash plate does not need to be operated, use convenience and measuring accuracy are improved, and then convenience and accuracy in the swash plate adjusting process are improved.

Description

Technical Field

[0001] The invention relates to the field of measuring tools, and in particular to a plunger pump swash plate zero position measuring and adjusting tool and method. Background Art

[0002] When assembling the swash plate assembly of the plunger pump, it is necessary to ensure that the swash plate swing angle is in the zero position. At this time, when the swash plate rotates, the effective force output to the plunger is zero, which facilitates the subsequent change of the output force to the plunger by changing the swash plate swing angle.

[0003] Since the swash plate is installed inside the pump body, the swash plate can only be measured and debugged through the opening of the pump body casing. For this purpose, a special measuring and debugging tool is required.

[0004] The existing inspection fixture is a tooling with a double dial indicator. Both dial indicators are in contact with the swash plate. The swash plate is slightly pushed or rotated to deviate from the initial position. Since the two dial indicators are in contact with two symmetrical points of the swash plate, any deviation of the swash plate will be reflected on the two dial indicators. The readings of the two dial indicators are used to determine whether the swash plate is at zero position. This measurement method, on the one hand, requires the swash plate to move during measurement, which is inconvenient. On the other hand, the displacement of the swash plate during the measurement process must be small enough to ensure the accuracy of the measurement results. Excessive displacement may cause measurement errors, which requires high measurement operations. Summary of the invention

[0005] In order to solve the above technical problems, on the one hand, the present invention provides a plunger pump swash plate zero position measurement and adjustment tool, comprising: A positioning part, mounted on the plunger pump; A measuring part is installed on the positioning part, and the distance between the measuring end of the measuring part and the swash plate in a second direction parallel to the second direction is the distance to be detected. The measuring part can measure the distance to be detected, and the measuring part can move along a first direction relative to the plunger pump, and the plane where the first direction is located is perpendicular to the second direction.

[0006] Preferably, the positioning portion is movably mounted on the plunger pump, and / or the measuring portion is movably mounted on the positioning portion, so that the measuring portion is movable relative to the plunger pump along the first direction.

[0007] Preferably, the positioning portion includes a chuck, which is provided with at least one claw, and the chuck is radially provided with a slide groove matching the claw. The chuck is also provided with an adjustment portion, which can control the movement of the claw in the slide groove so that the claw extends out of or retracts into the chuck along the slide groove.

[0008] Preferably, the adjusting portion comprises an adjusting disk, the adjusting disk is rotatably arranged on the chuck, a spiral protrusion is arranged on the end surface of the adjusting disk, and an adjusting groove matching the spiral protrusion is arranged on the claw.

[0009] Preferably, a locking portion is provided on the chuck, and the locking portion can lock the adjusting disk and the chuck.

[0010] Preferably, a chuck handle is provided on the chuck, and an adjustment handle is provided on the adjustment disk.

[0011] Preferably, the measuring part adopts a dial indicator, which includes a meter body, a probe rod and a probe. The dial indicator is installed on the positioning part through the meter body or the probe rod, and the dial indicator is movable relative to the positioning part along the second direction.

[0012] Preferably, an extension rod is provided between the probe rod and the probe head.

[0013] Preferably, a limiting through hole matching the probe rod is formed on the positioning portion, and the probe rod is inserted into the limiting through hole.

[0014] On the other hand, the present invention also provides a method for using the above-mentioned plunger pump swash plate zero position measurement and adjustment work, the method comprising: Step 1, installing the positioning part on the plunger pump; Step 2, measuring the distance to be detected at a position on the swash plate by the measuring unit; Step 3, moving the measuring part along the first direction relative to the plunger pump to obtain the distances to be detected at multiple positions on the swash plate; Step 4: obtaining a measurement result of the current posture state of the swash plate based on the acquired distance to be detected; Based on the measurement results, determining whether the position and posture of the swash plate needs to be adjusted; If the judgment result is yes, the posture of the swash plate is adjusted, and the above measurement process is repeated until the judgment result is no.

[0015] By applying the technical solution provided by the present invention, the measuring part is installed on the plunger pump through the positioning part, the measuring part is movable relative to the plunger pump in a first direction, the measuring part can measure the distance between the swash plate and the measuring end in a second direction, the plane where the first direction is located is perpendicular to the second direction, and by operating the measuring part to place it in different relative positions with the swash plate, the distance to be detected between the measuring end and different positions on the swash plate can be obtained, based on the value of the distance to be detected obtained, the posture state of the swash plate can be judged, and the swash plate can be adjusted according to the posture state of the swash plate, during the measurement process, only the measuring part and the positioning part need to be operated accordingly, and the swash plate does not need to be operated, thereby improving the convenience of use and the accuracy of measurement, thereby improving the convenience and accuracy of adjusting the swash plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a plunger pump swash plate zero position measurement and adjustment tool provided in one embodiment of the present invention; Figure 2 It is a structural schematic diagram of a positioning part of a plunger pump swash plate zero position measurement and adjustment tool provided by an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a chuck of a plunger pump swash plate zero position measurement and adjustment tooling provided in one embodiment of the present invention; Figure 4 It is a structural schematic diagram of an adjustment disk of a plunger pump swash plate zero position measurement and adjustment tool provided in one embodiment of the present invention; Figure 5 It is a structural schematic diagram of the cooperation between the adjusting disk and the claws of the plunger pump swash plate zero position measurement and adjustment tool provided by one embodiment of the present invention; Figure 6 It is a cross-sectional view of a plunger pump swash plate zero position measuring and adjusting tool provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the use of the plunger pump swash plate zero position measurement and adjustment tool provided by one embodiment of the present invention; Among them: 1. positioning part; 11. chuck; 111. slide groove; 112. mounting hole; 113. chuck handle; 114. locking hole; 115. locking part; 12. adjusting disk; 121. adjusting handle; 123. spiral protrusion; 124. mounting part; 13. claw; 2. measuring part; 3. shell opening round hole; 4. inclined disk. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a plunger pump swash plate zero position measuring and adjusting tool provided in one embodiment of the present invention.

[0019] like Figure 1 As shown, an embodiment of the present invention provides a plunger pump swash plate zero position measurement and adjustment tooling, including a positioning part 1 and a measuring part 2, the positioning part 1 is used to install the measurement and adjustment tooling on the pump body of the plunger pump, the measuring part 2 is installed on the positioning part 1, the measuring part 2 is movable relative to the plunger pump in a first direction, the measuring part 2 can measure the distance between the swash plate 4 and the measuring end in a second direction, and the plane where the first direction is located is perpendicular to the second direction.

[0020] By operating the measuring part 2 so that it is in different relative positions with the swash plate, the position data of different measured points on the swash plate 4 can be obtained respectively, and then the position deviation of the swash plate 4 in the current state and the zero position state can be directly obtained or indirectly calculated, so as to judge whether the swash plate 4 needs to be adjusted. During the measurement process, only the measuring part 2 and the positioning part 1 need to be operated accordingly, and there is no need to operate the swash plate 4, which can improve the convenience of use and the accuracy of measurement, and then improve the convenience and accuracy of adjusting the swash plate 4.

[0021] The relative positions of the measuring part 2 and the swash plate 4 can be changed by changing the relative positions of the positioning part 1 and the plunger pump, or the positioning part 1 can be set in a relatively fixed state on the plunger pump, and the position of the measuring part 2 on the positioning part 1 can be changed, thereby changing the relative position of the measuring part 2 and the swash plate 4, as long as the measuring part 2 can be moved along the first direction relative to the swash plate 4, and the measuring part 2 is located at multiple measuring points in the first direction, and the position data of different measured points on the swash plate 4 are measured.

[0022] Figure 2 It is a structural schematic diagram of a positioning part of a plunger pump swash plate zero position measurement and adjustment tool provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the use of the plunger pump swash plate zero position measurement and adjustment tooling provided by one embodiment of the present invention.

[0023] like Figure 2 and Figure 7As shown, in one of the preferred embodiments, the plunger pump has a shell circular hole 3, and the positioning part 1 includes a chuck 11. The chuck 11 can be clamped on the shell circular hole 3 of the plunger pump. The rotation of the chuck 11 on the shell circular hole 3 drives the measuring part 2 to move synchronously, thereby changing the relative position of the measuring part 2 and the swash plate 4 to measure the position of the swash plate 4.

[0024] In the present embodiment, the shell opening circular hole 3 is a circular hole with a stepped shape, so that the circular end face of the chuck 11 can be against the stepped surface of the shell opening circular hole 3. When the shell opening circular hole 3 has other shapes according to different plunger pump models or different processing processes, the structure of the chuck 11 should be adaptively adjusted; in addition, in the present embodiment, the chuck 11 and the shell opening circular hole 3 both have circular contours, so the chuck 11 is preferably rotated relative to the shell opening circular hole 3 to change the relative position of the measuring part 2 and the swash plate 4. In actual applications, the operator can also change the relative position of the measuring part 2 and the swash plate 4 by translation or other methods according to the design of the chuck 11 and the shell opening circular hole 3.

[0025] Among them, when the relative positions of the measuring part 2 and the swash plate 4 are changed by rotating the chuck 11 on the shell circular hole 3, the measuring part 2 should be prevented from being too close to the rotation center of the chuck 11, so that when the measuring part 2 moves with the chuck 11, the different positions on the swash plate 4 measured can cover a wider range on the swash plate 4 to improve the accuracy of the measurement.

[0026] Figure 3 It is a structural schematic diagram of a chuck of a plunger pump swash plate zero position measurement and adjustment tooling provided in one embodiment of the present invention; Figure 4 It is a structural schematic diagram of an adjustment disk of a plunger pump swash plate zero position measurement and adjustment tool provided in one embodiment of the present invention; Figure 5 It is a structural schematic diagram of the cooperation between the adjusting disk and the clamping claws of the plunger pump swash plate zero position measurement and adjustment tool provided by an embodiment of the present invention.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, in one preferred embodiment, at least one claw 13 is provided on the chuck 11, and a slide groove 111 matching the claw 13 is provided on the chuck 11 in the radial direction. The chuck 11 is also provided with an adjustment part, which can control the movement of the claw 13 in the slide groove 111, so that the claw 13 extends out or retracts into the chuck 11 along the slide groove 111, so that the claw 13 and the chuck 11 are clamped on the shell opening circular hole 3. When there is one claw 13, the claw 13 extends out of the chuck 11, so that the claw 13 and the end of the chuck 11 away from the claw 13 abut against the shell opening circular hole 3; when multiple claws 13 are provided, such as Figure 5As shown, three claws 13 are provided, and the angle between the three claws 13 is 120°. By driving the claws 13 to move outside the chuck 11, the ends of the three claws 13 are all in contact with the shell opening circular hole 3.

[0028] By setting the claw 13 , the claw 13 can extend or retract the chuck 11 along the slide groove 111 , so that the chuck 11 can be clamped on the shell opening circular hole 3 of different sizes, thereby improving the applicability of the tooling.

[0029] In addition, a certain anti-scratch treatment can be done on the end of the claw 13 close to the shell opening circular hole 3. For example, a nylon sleeve can be provided on the end of the claw 13, or the claw 13 can be directly made of low hardness material to avoid the claw 13 being clamped in the shell opening circular hole 3 and the claw 13 scratching the surface of the shell opening circular hole 3 when rotating with the chuck 11.

[0030] like Figure 4 and Figure 5 As shown, in one of the preferred embodiments, the adjusting portion includes an adjusting disk 12, which is rotatably arranged on the chuck 11, and a spiral protrusion 123 is arranged on the end face of the adjusting disk 12, and an adjusting groove matching the spiral protrusion 123 is arranged on the claw 13. Through the relative rotation of the adjusting disk 12 and the chuck 11, the claw 13 moves back and forth along the slide groove 111 under the limitation of the spiral protrusion 123.

[0031] In addition, other methods can also be used to drive the movement of the claw 13 in the slide groove 111. For example, a rotatable cam is provided on the chuck 11, and the end of the claw 13 away from the shell opening circular hole 3 abuts on the cam. Through the rotation of the cam, the end of the claw 13 close to the shell opening circular hole 3 abuts on the shell opening circular hole 3; or, a compression spring is installed at the end of the claw 13 away from the shell opening circular hole 3, and the spring has the elastic force to push the claw 13 outward along the slide groove 111. When in use, the operator presses the claw 13 back into the slide groove 111, and the spring pushes the claw 13 out so that the claw 13 abuts on the shell opening circular hole 3, and so on. As long as the above-mentioned function of driving the claw 13 to move in the slide groove 111 can be achieved, it will be sufficient.

[0032] like Figure 3 and Figure 4 As shown, a mounting hole 112 is opened on the chuck 11, and a section of the slide groove 111 is connected to the mounting hole 112, so that the adjustment groove on one side of the claw 13 located in the slide groove 111 is located in the mounting hole 112, and a mounting portion 124 matching the mounting hole 112 is provided on the adjustment disk 12, and a spiral protrusion 123 is provided on the end face of the mounting portion 124. When the mounting portion 124 is assembled with the mounting hole 112, the spiral protrusion 123 cooperates with the adjustment groove on the claw 13.

[0033] like Figure 2 As shown, in one preferred embodiment, a locking portion 115 is provided on the chuck 11 , and the locking portion 115 can lock the positions of the adjusting disk 12 and the chuck 11 , thereby locking the relative positions of the claw 13 and the chuck 11 .

[0034] exist Figure 2 In the illustrated embodiment, the locking portion 115 is a threaded hole extending along the outer circumference of the chuck 11 toward the interior of the mounting hole 112. When the adjusting disk 12 is rotated into place, a locking screw is screwed into the threaded hole to lock the adjusting disk 12. Other methods may also be used to achieve locking of the adjusting disk 12 and the chuck 11, which will not be described in detail here.

[0035] like Figure 2 As shown, in one of the preferred embodiments, an adjusting handle 121 is provided on the adjusting disk 12 to facilitate the operator to rotate the adjusting disk 12, and a chuck handle 113 is provided on the chuck 11. On the one hand, through the adjusting handle 121 and the chuck handle 113, it is more convenient to apply relative rotational force to the adjusting disk 12 and the chuck 11. On the other hand, by operating the chuck handle 113, the rotation of the chuck 11 at the shell opening circular hole 3 can be more conveniently controlled.

[0036] In addition, if Figure 5 As shown, one end of the claw 13 away from the chuck 11 can be set as a step structure. When the claw 13 cooperates with the shell opening circular hole 3, one side of the step structure overlaps the end face of the hole opening of the shell opening circular hole 3, and the other side of the step structure abuts against the inner wall of the shell opening circular hole 3, so that the claw 13 can better cooperate with the shell opening circular hole 3; in actual application, the shape of the claw 13 can be adaptively designed according to the specific structure of the shell opening circular hole 3 or other structures that actually cooperate with the claw 13, which will not be elaborated here.

[0037] It should be noted that the above embodiment only shows that the positioning part 1 is movably connected to the plunger pump, that is, the chuck 11 can rotate or move relative to the shell opening circular hole 3 to change the relative position of the measuring part 2 and the swash plate 4; in other embodiments of the present invention, the positioning part 1 can also be fixedly installed on the plunger pump, and the measuring part 2 can be movable relative to the positioning part 1, so as to realize the variable relative position of the measuring part 2 and the swash plate 4. For example, the positioning part 1 is fixedly installed on the shell opening circular hole 3, a hole is opened in the middle of the positioning part 1, one end of the measuring part 2 away from the swash plate 4 is installed in the hole, and the other end is located inside the shell opening circular hole 3 and extends a certain distance in the radial direction. A measuring probe is provided at the end of the measuring part 2 located on the side of the shell opening circular hole 3. When the measuring part 2 is rotated to the part located in the hole of the positioning part 1, the measuring probe of the measuring part 2 located in the shell opening circular hole 3 rotates with the above-mentioned certain distance as the radius, that is, the measuring probe can move along the first direction and measure the position data of different measured points on the swash plate 4.

[0038] In the embodiment of the present invention, the measuring part 2 is used to measure the position data of different measured points on the swash plate 4, and the swash plate 4 is adjusted according to the position data. For example, in one of the use environments, the measuring part 2 is clamped at the shell opening circular hole 3 through the positioning part 1, so that the measuring part 2 is movable relative to the swash plate 4 along the first direction. At this time, the measuring part 2 is located at the first measuring point, and the distance to be detected between the first measured point on the swash plate 4 and the measuring end is measured to be 100.05 mm. The measuring part 2 is moved along the first direction, and the distance to be detected between the second measured point on the swash plate 4 and the measuring end is measured to be 99.95 mm. The measuring part 2 is continued to be moved to measure the third measured point, the fourth measured point on the swash plate 4, and so on. Based on the values ​​of the distances to be detected measured above, the current posture state of the swash plate 4 can be determined, and then the posture deviation of the swash plate 4 in the current state and the zero state can be obtained, so as to adjust the swash plate 4 according to the actual process requirements. After the adjustment is completed, the posture state of the swash plate 4 is measured again, and the adjustment and measurement process is repeated for multiple times until the measured posture state of the swash plate 4 meets the process requirements.

[0039] Figure 6 It is a cross-sectional view of a plunger pump swash plate zero position measuring and adjusting tool provided by one embodiment of the present invention.

[0040] like Figure 1 and Figure 6 As shown, in one of the preferred embodiments, the measuring part 2 adopts a dial indicator, the body of the dial indicator is installed on the positioning part 1, and the probe of the dial indicator is abutted on the swash plate 4. By rotating (moving) the positioning part 1 or the measuring part 2, the probe of the dial indicator is moved on the surface of the swash plate 4, and the posture state of the swash plate 4 is judged according to the change of the reading of the dial indicator, and the swash plate 4 is adjusted.

[0041] In one of the preferred embodiments, an extension rod is provided on the probe rod of the dial indicator, and the extension rod can be set between the meter body and the probe, so that the probe can be extended into a deeper position in the circular hole 3 of the shell mouth, and can adapt to the measurement of plunger pumps of various models and parameters, or a dial indicator with a probe rod body of sufficient length can be directly customized to improve the applicability of the measuring tooling.

[0042] like Figure 6 As shown, in one of the preferred embodiments, a limiting through hole matching the probe rod of the dial indicator is opened on the positioning portion 1, and the probe rod of the dial indicator passes through the limiting through hole, so that the probe and the meter body of the dial indicator are respectively located on both sides of the chuck 11, and a locking hole 114 is opened on the circumferential surface of the chuck 11, and the locking hole 114 is connected with the limiting through hole. When the chuck 11 and the shell circular hole 3 are installed in place, the height of the probe rod of the dial indicator is adjusted to a suitable position and installed in the limiting through hole, so that the probe of the dial indicator just contacts the surface of the inclined plate 4, and then the locking screw is screwed into the locking hole 114, the dial indicator and the chuck 11 are locked, and the measurement operation can be started.

[0043] In one of the preferred embodiments, the portion where the dial indicator probe contacts the swash plate is provided with at least one treatment to prevent surface damage during relative movement. For example, the dial indicator probe is made of a material with lower hardness, or lubrication is applied to portions of the dial indicator and the swash plate 4 to prevent scratches on the dial indicator probe and the swash plate 4 during use.

[0044] In addition, the measuring part 2 may also use other measuring tools, for example, an electronic distance measuring sensor such as an ultrasonic distance measuring sensor, and the distance measuring sensor is installed on the side of the chuck 11 facing the swash plate 4. The chuck 11 is rotated or moved to make the distance measuring sensor move along the first direction. When the distance measuring sensor is located at different measuring points, the distance between different measured points on the surface of the swash plate 4 and the sensor can be obtained.

[0045] The present invention also provides a method for measuring and adjusting a plunger pump swash plate zero position measuring and adjusting tool, comprising: Step 1: Install the positioning part 1 on the plunger pump; Step 2: measuring the distance to be detected at a position on the swash plate 4 by the measuring unit 2; Step 3: Move the measuring part 2 along the first direction relative to the plunger pump to obtain the distances to be detected at multiple positions on the swash plate 4; Step 4: based on the acquired distance to be detected, obtain the measurement result of the current posture state of the swash plate 4; Based on the measurement results, determine whether the position and posture of the swash plate 4 needs to be adjusted; If the judgment result is yes, adjust the swash plate 4 posture and repeat the above measurement process until the judgment result is no.

[0046] In one specific embodiment, the tooling and method provided by the embodiment of the present invention are used to measure and adjust the posture of the swash plate 4. When the measuring part 2 is located at the first measuring point, the distance to be detected between the first measured point on the swash plate 4 and the measuring end is measured to be a1. The measuring part 2 is operated to move along the first direction, and the distance to be detected between the second measured point on the swash plate 4 and the measuring end is measured to be b1. The measuring part 2 is continued to be moved and c1, d1, e1, etc. are measured. According to the above data values, it is calculated that the swash plate 4 is offset by an angle p1 relative to the zero position state in the current state. In the current process parameters, the offset between the assembly position of the swash plate 4 and the standard zero position is required to be p0. If p1 is greater than p0, the above measurement steps are repeated after the position of the swash plate 4 is adjusted. The above adjustment and measurement steps are repeated multiple times until the offset pn of the swash plate 4 obtained in the nth measurement is less than p0, which means that the swash plate 4 does not need to be adjusted anymore, that is, the measurement and adjustment of the swash plate 4 are completed.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.

Claims

1. A plunger pump swash plate zero position measurement and adjustment tool, used to measure the position of the swash plate in the current state, so as to adjust the swash plate to the zero position state according to the measurement result, characterized in that: The tooling includes: A positioning part, mounted on the plunger pump; A measuring part is installed on the positioning part, and the distance between the measuring end of the measuring part and the swash plate in a second direction parallel to the second direction is the distance to be detected. The measuring part can measure the distance to be detected, and the measuring part can move along a first direction relative to the plunger pump, and the plane where the first direction is located is perpendicular to the second direction.

2. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 1 is characterized in that: The positioning portion is movably mounted on the plunger pump, and / or the measuring portion is movably mounted on the positioning portion, so that the measuring portion is movable relative to the plunger pump along the first direction.

3. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 2 is characterized in that: The positioning portion includes a chuck, on which at least one claw is arranged, and a slide groove matching the claw is radially arranged on the chuck. The chuck is also provided with an adjustment portion, which can control the movement of the claw in the slide groove so that the claw extends out of or retracts into the chuck along the slide groove.

4. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 3 is characterized in that: The adjusting part comprises an adjusting disk, which is rotatably arranged on the chuck, an end surface of the adjusting disk is provided with a spiral protrusion, and the claw is provided with an adjusting groove matching the spiral protrusion.

5. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 4 is characterized in that: The chuck is provided with a locking portion, and the locking portion can lock the adjusting disk and the chuck.

6. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 4 is characterized in that: The chuck is provided with a chuck handle, and the adjusting disk is provided with an adjusting handle.

7. The plunger pump swash plate zero position measurement and adjustment tool according to claim 1, characterized in that: The measuring part adopts a dial indicator, which includes a meter body, a probe rod and a probe. The dial indicator is installed on the positioning part through the meter body or the probe rod, and the dial indicator is movable relative to the positioning part along the second direction.

8. The plunger pump swash plate zero position measurement and adjustment tooling according to claim 7 is characterized in that: An extension rod is arranged between the probe rod and the probe head.

9. The plunger pump swash plate zero position measurement and adjustment tool according to claim 7, characterized in that: The positioning portion is provided with a limiting through hole matching the probe rod, and the probe rod is inserted into the limiting through hole.

10. A method for using the measuring and adjusting tool as claimed in any one of claims 1 to 9, characterized in that: The method comprises: Step 1, installing the positioning part on the plunger pump; Step 2, measuring the distance to be detected at a position on the swash plate by the measuring unit; Step 3, moving the measuring part along the first direction relative to the plunger pump to obtain the distances to be detected at multiple positions on the swash plate; Step 4: obtaining a measurement result of the current posture state of the swash plate based on the acquired distance to be detected; Based on the measurement results, determining whether the position and posture of the swash plate needs to be adjusted; If the judgment result is yes, the posture of the swash plate is adjusted, and the above measurement process is repeated until the judgment result is no.

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