Alignment measuring mechanism for butt joint shaft of spray pump

Abstract

The utility model provides a centering measurement mechanism for a butt joint shaft of a spray pump, and relates to the field of shaft centering measurement. The spray pump butt joint shaft centering measuring mechanism comprises a spray pump, a butt joint shaft, a butt joint circle adjusting assembly, a rotating assembly and a measuring assembly. An outer circle measuring head of the measuring assembly can be pressed on the outer circle of a shaft flange of the spray pump and the outer circle of a flange of the butt joint shaft, and an end face measuring head of the measuring assembly can be pressed on the end face of the shaft flange of the spray pump and the end face of the flange of the butt joint shaft. According to the centering measurement mechanism for the spray pump butt joint shaft, a worker does not need to repeatedly coil the shaft of the spray pump, measurement can be completed and shaft centering work can be carried out only by shifting the rotating assembly to rotate, manpower consumption is small, repeated shaft coiling is not needed, the working time can be greatly shortened, and in the prior art, as long as the magnetic support moves, the work efficiency is greatly improved. And after the position of the centering measurement mechanism for the butt joint shaft of the spray pump is locked, the whole centering measurement mechanism is stable and does not generate deviation due to small external force.

Description

Technical Field

[0001] This utility model relates to the field of shaft alignment measurement technology, and more specifically, to a mechanism for measuring the alignment of a pump docking shaft. Background Technology

[0002] When the spray pump is installed on a ship or boat, the spray pump needs to be installed first because it needs to have sealing and other characteristics. After that, the docking shaft on the gearbox or main unit with gearbox needs to be aligned and measured according to the shaft of the spray pump to ensure that the docking shaft and the spray pump shaft are aligned and improve the stability of the spray pump during operation.

[0003] In related technologies, the alignment measurement of the docking shaft and the injection pump shaft is performed using a dial indicator with a magnetic support. The end face and outer diameter of the injection pump shaft flange are used as a reference to measure the end face and outer diameter of the docking shaft flange. The magnetic support is attached to the injection pump shaft flange, and the dial indicator's measuring head presses against the end face or outer diameter of the docking shaft flange. By rotating the injection pump shaft flange, the magnetic support rotates with the flange, causing the dial indicator to perform a circular motion around the end face and outer diameter of the docking shaft flange for multi-point measurements. However, this measurement method requires repeated rotation of the injection pump shaft. The dial indicator is driven to rotate around the end face and outer circle of the flange of the docking shaft. Through multi-point measurement of the end face and outer circle of the flange of the docking shaft, the flange of the docking shaft is adjusted to make the multi-point measurement values ​​equal, thus realizing the shaft alignment. However, manual shaft rotation requires a lot of manpower because the flange, shaft and impeller of the spray pump need to be rotated. Moreover, the shaft rotation needs to be repeated after each adjustment, which will increase the working time. Therefore, how to design a shaft alignment measurement mechanism that does not require shaft rotation to reduce the consumption of manpower and time has become a technical problem that needs to be solved. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a spray pump docking shaft alignment measuring mechanism. This mechanism eliminates the need for workers to repeatedly rotate the spray pump shaft; simply rotating the rotating component completes the measurement and shaft alignment work, minimizing labor consumption. Since repeated shaft rotation is unnecessary, working time is significantly reduced. In the prior art, a magnetic support is used, but any movement of the magnetic support necessitates re-rotating the shaft for measurement. Once the spray pump docking shaft alignment measuring mechanism is locked in position, it remains stable and will not deviate due to small external forces.

[0005] The spray pump docking shaft alignment measuring mechanism according to an embodiment of the present invention includes: a spray pump, a docking shaft, a docking circle adjustment component, a rotation component, and a measuring component.

[0006] The docking circle adjustment assembly is disposed on the back of the shaft flange of the spray pump; the rotating assembly is fixedly connected to the docking circle adjustment assembly, and the docking circle adjustment assembly can adjust the rotation center axis of the rotating assembly to be coaxial with the axis of the spray pump; the measuring assembly is installed on the rotating part of the rotating assembly, the outer circle measuring head of the measuring assembly can press on the outer circle of the shaft flange of the spray pump and the outer circle of the flange of the docking shaft, the end face measuring head of the measuring assembly can press on the end face of the shaft flange of the spray pump and the end face of the flange of the docking shaft, and the measuring assembly can measure multiple point values ​​of the end face and outer circle of the shaft flange of the spray pump and the end face and outer circle of the flange of the docking shaft.

[0007] According to some embodiments of this utility model, the docking circle adjustment assembly includes a docking semicircular frame, a docking bolt group, an inner ring adjusting top bolt, and an outer ring adjusting top bolt. The docking points of the two docking semicircular frames are connected by the docking bolt group. The inner ring adjusting top bolt and the outer ring adjusting top bolt are threaded through the docking semicircular frame. The inner ring adjusting top bolt and the outer ring adjusting top bolt form two equally spaced rings around the docking semicircular frame, encircling the back of the shaft flange of the spray pump. The inner ring adjusting top bolt and the outer ring adjusting top bolt press against the back of the shaft flange of the spray pump. The ring formed by the inner ring adjusting top bolt is close to the shaft flange of the spray pump, and the ring formed by the outer ring adjusting top bolt is away from the shaft flange of the spray pump. The rotating assembly is connected to the docking semicircular frame.

[0008] According to some embodiments of the present invention, the docking semicircular frame includes a semicircular docking cylinder, a semicircular mounting plate, a semicircular adjusting cylinder, and a semicircular connecting plate. The semicircular docking cylinders of the two docking semicircular frames are docked and fixed by the docking bolt group. The inner ring adjusting top bolt and the outer ring adjusting top bolt are threaded through the semicircular docking cylinder. The semicircular mounting plate is fixedly sleeved on the outer side of the semicircular docking cylinder near the shaft flange of the spray pump. The semicircular adjusting cylinder is fixedly sleeved on the outer side of the semicircular mounting plate near the shaft flange of the spray pump. The semicircular connecting plate is fixedly sleeved on the shaft flange of the semicircular adjusting cylinder away from the spray pump. The rotating assembly is connected to the semicircular connecting plate.

[0009] According to some embodiments of this utility model, the rotating assembly includes a fixed inner ring, a bearing, a rotating outer ring, a locking ring, positioning beads, and a fixing screw assembly. The inner ring of the bearing is fixedly sleeved on the fixed inner ring, and the rotating outer ring is fixedly sleeved on the outer ring of the bearing. The periphery of the locking ring is connected to the periphery of the rotating outer ring. The locking ring and the rotating outer ring are respectively located on both sides of the fixed inner ring. The positioning beads are equally spaced around the locking ring by threaded penetration, and the ball of the positioning bead is pressed against the fixed inner ring. The fixing screw assembly is equally spaced outside the fixed inner ring. The fixed inner ring is fixedly connected to the mating circle adjustment assembly through the fixing screw assembly. The measuring assembly is connected to the rotating outer ring.

[0010] According to some embodiments of the present invention, the fixed inner ring component includes a bearing inner ring fixing cylinder and a docking annular plate. The docking annular plate is fixedly sleeved on the side of the bearing inner ring fixing cylinder near the docking circle adjustment component. The bearing inner ring is fixedly sleeved on the bearing inner ring fixing cylinder. The fixing screw assembly is fixedly connected to the outside of the docking annular plate. The ball of the positioning bead is pressed against the periphery of the outside of the docking annular plate.

[0011] According to some embodiments of this utility model, the rotating outer ring component includes a bearing outer ring fixing cylinder, a rotating annular plate, a first fixing annular plate, and a fixing bolt group. The bearing outer ring fixing cylinder is fixedly sleeved on the bearing outer ring. The rotating annular plate is fixedly sleeved on the side of the bearing outer ring fixing cylinder near the mating circle adjustment component. The first fixing annular plate is fixedly connected to the outside of the rotating annular plate. The first fixing annular plate is connected to the periphery of the locking ring component through the fixing bolt group. The measuring component is connected to the outside of the rotating annular plate.

[0012] According to some embodiments of the present invention, the locking ring component includes a locking ring, a mounting cylinder, and a second fixing annular plate. The mounting cylinder is evenly spaced on the outside of the locking ring by a fixed through-hole method. The positioning bead is threaded into the mounting cylinder. The second fixing annular plate is fixedly sleeved on the outer wall of the locking ring. The second fixing annular plate and the first fixing annular plate are fixedly connected by the fixing bolt group.

[0013] According to some embodiments of this utility model, the measuring assembly includes an outer diameter measuring rod, an end face measuring rod, a sliding sleeve, a locking screw, a pump shaft outer diameter measuring dial indicator, an end face measuring dial indicator, and a docking shaft outer diameter measuring dial indicator. One end of the outer diameter measuring rod is fixedly connected to the rotating assembly, and the sliding sleeve is fixedly connected to one end of the end face measuring rod. The sliding sleeve is slidably sleeved on the outer diameter measuring rod. The locking screw passes through the sliding sleeve through a thread and presses against the outer diameter measuring rod. The end face measuring... The rod is located between the shaft flange of the injection pump and the flange of the docking shaft. The pump shaft outer diameter measuring dial indicator and the docking shaft outer diameter measuring dial indicator are installed at both ends of the outer diameter measuring rod. The pump shaft outer diameter measuring dial indicator and the docking shaft outer diameter measuring dial indicator are respectively pressed against the outer ring of the pump shaft flange and the outer ring of the docking shaft flange. The end face measuring dial indicator is installed on the end face measuring rod. The end face measuring dial indicator can press against the end face of the pump shaft flange and the end face of the docking shaft flange respectively by rotating.

[0014] The beneficial effects of this invention are as follows: During use, the rotating component rotates, causing the measuring component to rotate around the shaft flange of the spray pump. The measuring component measures values ​​at multiple points on the end face of the spray pump's shaft flange. Points with smaller values ​​indicate that the measuring position on the measuring component's end face is far from the end face of the spray pump's shaft flange. Adjusting the mating circle adjustment component changes the distance between the measuring position on the measuring component's end face and the end face of the spray pump's shaft flange at that point, thus adjusting the distances between the measuring positions on the measuring component's end face and the end face of the spray pump's shaft flange at multiple points to be equal. At this point, the rotating plane of the measuring position on the measuring component's end face is aligned with the shaft flange of the spray pump. With the flange end faces parallel, the measuring component rotates around an axis parallel to the pump's axis. By rotating the component, the outer diameter measuring position of the measuring component measures values ​​at multiple points on the outer diameter of the flange on the pump's shaft. Larger values ​​indicate that the measuring component's outer diameter measuring position is closer to the outer diameter of the flange on the pump's shaft at that point. The mating circle adjustment component is then adjusted to change the distance between the measuring component's outer diameter measuring position and the outer diameter of the flange on the pump's shaft at that point. This adjusts the distance between the measuring component's outer diameter measuring position and the outer diameter of the flange on the pump's shaft at multiple points until they are equal. At this point, the rotation centerline of the measuring component is aligned with the centerline of the pump shaft. The measuring component rotates around the axis of rotation and coincides with the axis of the spray pump. (When measuring the values ​​at various points on the outer circle of the spray pump shaft flange, if the measured values ​​at the spray pump shaft flange end face change, the mating circle adjustment component needs to be adjusted again to make the measured values ​​at the spray pump shaft flange end face the same, until the measuring component measures the same values ​​at multiple points on the outer circle of the spray pump shaft flange, and the measured values ​​at multiple points are also the same). Using the adjusted measuring component as a reference, measure the values ​​at multiple points on the mating shaft flange end face and outer circle. Adjust the mating shaft flange end face and outer circle according to the principle of equal values ​​at multiple points. The outer circle ensures that the end face of the docking shaft flange is parallel to the end face of the pump shaft flange, and the center line of the docking shaft flange is coaxial with that of the pump shaft, thus completing the shaft alignment process between the pump and the docking shaft. This type of pump docking shaft alignment measuring mechanism does not require workers to repeatedly rotate the pump shaft; they only need to rotate the rotating component to complete the measurement and shaft alignment work, which reduces labor consumption. Since there is no need to repeatedly rotate the shaft, the working time can be greatly reduced. In the existing technology, a magnetic support is used, and if the magnetic support moves, the shaft needs to be rotated again for measurement. After the position of the pump docking shaft alignment measuring mechanism is locked, the whole is stable and will not deviate due to small external forces.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the spray pump docking shaft alignment measuring mechanism according to an embodiment of this application;

[0018] Figure 2 This is a partial structural schematic diagram of the pump docking shaft alignment measuring mechanism according to an embodiment of this application;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the docking circle adjustment component according to an embodiment of this application;

[0020] Figure 4 This is a three-dimensional structural diagram of the docking semicircular frame according to an embodiment of this application;

[0021] Figure 5 This is a three-dimensional structural schematic diagram of the rotating assembly according to an embodiment of this application;

[0022] Figure 6 According to the embodiments of this application Figure 5 An enlarged 3D structural diagram at point A in the middle;

[0023] Figure 7 This is a three-dimensional structural schematic diagram of the measuring component according to an embodiment of this application.

[0024] Icons: 100-Spray pump; 200-Dating shaft; 300-Dating circle adjustment assembly; 310-Dating semi-circular frame; 311-Semi-circular docking cylinder; 312-Semi-circular mounting plate; 313-Semi-circular adjusting cylinder; 314-Semi-circular connecting plate; 320-Dating bolt assembly; 330-Inner ring adjusting top bolt; 340-Outer ring adjusting top bolt; 350-Connecting hole; 400-Rotating assembly; 410-Fixed inner ring component; 411-Bearing inner ring fixing cylinder; 412-Dating annular plate; 420-Bearing; 430-Rotating outer ring component; 431- 432 - Bearing outer ring fixing sleeve; 433 - Rotating annular plate; 434 - First fixing annular plate; 435 - Fixing bolt assembly; 446 - Locking ring component; 447 - Locking ring; 448 - Mounting sleeve; 449 - Second fixing annular plate; 450 - Positioning bead; 460 - Fixing screw assembly; 500 - Measuring component; 510 - Outer diameter measuring rod; 520 - End face measuring rod; 530 - Sliding sleeve; 540 - Locking screw; 550 - Pump shaft outer diameter measuring dial indicator; 560 - End face measuring dial indicator; 570 - Butt shaft outer diameter measuring dial indicator. Detailed Implementation

[0025] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The following description, with reference to the accompanying drawings, describes a pump docking shaft alignment measuring mechanism according to an embodiment of the present invention.

[0028] Please see Figures 1 to 6 The spray pump docking shaft alignment measuring mechanism according to an embodiment of the present utility model includes: a spray pump 100, a docking shaft 200, a docking circle adjustment component 300, a rotation component 400, and a measuring component 500.

[0029] Please see Figure 1The docking circle adjustment component 300 is installed on the back of the shaft flange of the spray pump 100; the back of the shaft flange of the spray pump 100 is cylindrical for installation. The rotating component 400 is fixedly connected to the docking circle adjustment component 300, which can adjust the rotation center axis of the rotating component 400 to coincide with the axis of the spray pump 100. The measuring component 500 is installed on the rotating part of the rotating component 400. The outer circle measuring head of the measuring component 500 can press against the outer circle of the shaft flange of the spray pump 100 and the outer circle of the flange of the docking shaft 200, and the end face measuring head of the measuring component 500 can press against the end face of the shaft flange of the spray pump 100 and the end face of the flange of the docking shaft 200. The measuring component 500 can measure multiple points of the shaft flange end face and outer circle of the spray pump 100 and the flange end face and outer circle of the docking shaft 200. Measurement principle: Adjust the measuring position rotation plane of the measuring component 500 end face to be parallel to the end face of the shaft flange of the spray pump 100, so that the axis around which the measuring component 500 rotates is parallel to the axis of the spray pump 100. Adjust the distance between the outer circle measuring position of the measuring component 500 at multiple points and the outer circle of the shaft flange of the spray pump 100 to be the same, so that the axis around which the measuring component 500 rotates coincides with the axis of the spray pump 100, thus achieving the purpose of shaft alignment.In use, the rotating component 400 rotates, causing the measuring component 500 to rotate around the shaft flange of the spray pump 100. The measuring component 500 measures values ​​at multiple points on the shaft flange end face of the spray pump 100. Points with smaller values ​​indicate that the measuring position on the end face of the measuring component 500 is farther from the shaft flange end face of the spray pump 100. The mating circle adjustment component 300 is adjusted to change the position of the measuring position on the end face of the measuring component 500 from the shaft flange end face of the spray pump 100 at that point. By adjusting the distances between the measuring positions on the end face of the measuring component 500 and the shaft flange end face of the spray pump 100 at multiple points, the rotation plane of the measuring position on the end face of the measuring component 500 is aligned with the shaft flange end face of the spray pump 100. With the flange faces parallel, the measuring component 500 rotates around an axis parallel to the axis of the spray pump 100. Then, by rotating the rotating component 400, the outer diameter measuring position of the measuring component 500 measures the values ​​at multiple points on the outer diameter of the spray pump 100's shaft flange. Points with larger values ​​indicate that the outer diameter measuring position of the measuring component 500 is closer to the outer diameter of the spray pump 100's shaft flange at that point. The mating circle adjusting component 300 is adjusted to change the position of the outer diameter measuring position of the measuring component 500 at that point relative to the outer diameter of the spray pump 100's shaft flange. The distances between the outer diameter measuring positions of the measuring component 500 and the outer diameter of the spray pump 100's shaft flange at multiple points are adjusted to be the same. At this point, the rotation center line of the measuring component 500 is parallel to the axis of the spray pump 100. The centerline of axis 0 is coaxial. The measuring component 500 rotates around the axis of rotation, which coincides with the axis of the spray pump 100. (When measuring the values ​​at various points on the outer circle of the flange on the shaft of the spray pump 100, if the measured values ​​at the end face of the flange on the shaft of the spray pump 100 change, the mating circle adjustment component 300 needs to be adjusted to make the measured values ​​at the end face of the flange on the shaft of the spray pump 100 the same. This continues until the measured values ​​at the end face of the flange on the shaft of the spray pump 100 by the measuring component 500 are the same, and the measured values ​​at multiple points on the outer ring of the flange on the shaft of the spray pump 100 by the measuring component 500 are also the same.) Using the adjusted measuring component 500 as a reference, measure the values ​​at multiple points on the flange end face and outer circle of the mating shaft 200. Adjust according to the principle that the values ​​at multiple points are equal. The flange end face and outer circle of the docking shaft 200 are aligned so that the flange end face of the docking shaft 200 is parallel to the flange end face of the spray pump 100. The center line of the flange shaft of the docking shaft 200 and the shaft center line of the spray pump 100 are coaxial, thus completing the shaft alignment process between the spray pump 100 and the docking shaft 200. This type of spray pump docking shaft alignment measuring mechanism does not require workers to repeatedly rotate the shaft of the spray pump 100. The measurement and shaft alignment work can be completed simply by rotating the rotating component 400. The manpower consumption is small. Since there is no need to repeatedly rotate the shaft, the working time can be greatly reduced. In the existing technology, the magnetic bracket is used. As long as the magnetic bracket moves, the shaft needs to be rotated again for measurement. After the position of the spray pump docking shaft alignment measuring mechanism is locked, the whole is stable and will not deviate due to small external forces.

[0030] Please see Figures 1 to 2The mating circle adjustment assembly 300 includes a mating semicircular frame 310, a mating bolt assembly 320, an inner ring adjusting top bolt 330, and an outer ring adjusting top bolt 340. The mating joints of the two mating semicircular frames 310 are connected by the mating bolt assembly 320. The inner ring adjusting top bolt 330 and the outer ring adjusting top bolt 340 are threaded through the mating semicircular frame 310. The ends of the inner ring adjusting top bolt 330 and the outer ring adjusting top bolt 340 are tapered. The adjusting top bolts 340 are arranged in two equally spaced rings around the docking semicircular frame 310, encircling the back of the axial flange of the spray pump 100. The tapered portions of the inner adjusting top bolts 330 and the outer adjusting top bolts 340 press against the back of the axial flange of the spray pump 100. The ring formed by the inner adjusting top bolts 330 is close to the axial flange of the spray pump 100, and the ring formed by the outer adjusting top bolts 340 is away from the axial flange of the spray pump 100. The rotating assembly 400 is connected to the docking semicircular frame 310. In this embodiment, there are four inner adjusting top bolts 330 and four outer adjusting top bolts 340. The four inner adjusting top bolts 330 are distributed at 90° on the docking semicircular frame 310 to form an inner ring, and the four outer adjusting top bolts 340 are distributed at 90° on the docking semicircular frame 310 to form an outer ring. The shaft flange of the spray pump 100, along with the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340, forms four measuring points on the end face and outer circle. The ends of the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340 are tapered, reducing the contact area between their ends and the back of the shaft flange of the spray pump 100, thus facilitating the alignment adjustment of the docking semicircular frame 310 and the shaft of the spray pump 100. The outer rings of the two docking semicircular frames 310 are fixed together by the rotating assembly 400, forming a stable docking circle adjustment assembly 300 as a whole.The measuring positions on the end face of the measuring component 500 are located at points on the shaft flange end face of the spray pump 100 corresponding to the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340. The outer ring adjusting bolt 340 corresponding to the smaller value is tightened, while the corresponding outer ring adjusting bolt 340 is loosened. (If the reading on the end face measuring dial indicator 560 does not change, the inner ring adjusting bolt 330 at the smaller value can be loosened appropriately, and the corresponding inner ring adjusting bolt 330 tightened, to allow for a clearance for the deflection of the docking semi-circular frame 310.) By adjusting the outer ring adjusting bolt 340, the values ​​measured at the measuring positions on the end face of the measuring component 500 on the shaft flange end face of the spray pump 100 are adjusted to be the same. At this point, the measurement... The rotating plane of the measuring position on the end face of the measuring component 500 is parallel to the end face of the shaft flange of the spray pump 100. Subsequently, the outer circle measuring position of the measuring component 500 measures the value of the points on the outer circle of the shaft flange of the spray pump 100 corresponding to the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340. The inner ring adjusting bolt 330 and the outer ring adjusting bolt 340 corresponding to the larger value are simultaneously loosened, and the corresponding inner ring adjusting bolt 330 and the outer ring adjusting bolt 340 are simultaneously tightened, so that the measured values ​​of each point on the outer circle of the shaft flange of the spray pump 100 are adjusted to be the same. Since the measuring component 500 rotates around the rotation center line of the rotating component 400, at this time, the rotation center line of the rotating component 400 is aligned and coaxial with the shaft center line of the spray pump 100.

[0031] Please see Figures 1 to 3The docking semicircular frame 310 includes a semicircular docking cylinder 311, a semicircular mounting plate 312, a semicircular adjusting cylinder 313, and a semicircular connecting plate 314. The semicircular docking cylinders 311 of the two docking semicircular frames 310 are docked and fixed by docking bolt group 320. The inner ring adjusting top bolt 330 and the outer ring adjusting top bolt 340 are threaded through the semicircular docking cylinder 311. The semicircular mounting plate 312 is fixedly sleeved on the outer side of the semicircular docking cylinder 311 near the shaft flange of the spray pump 100. The semicircular adjusting cylinder 313 is fixedly sleeved on the outer side of the semicircular mounting plate 312 near the shaft flange of the spray pump 100. The semicircular connecting plate 314 is fixedly sleeved on the shaft flange of the semicircular adjusting cylinder 313 away from the spray pump 100. The rotating component 400 is connected to the semicircular connecting plate 314. The semicircular connecting plate 314 has a connecting hole 350. The rotating component 400 is connected to the docking semicircular frame 310 through the connecting hole 350. Two semi-circular connecting cylinders 311 are arranged around the back of the shaft flange of the spray pump 100. The two semi-circular connecting cylinders 311 are fixed together by connecting bolts 320, and the back of the shaft flange of the spray pump 100 is pressed by the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340. The mounting position of the rotating assembly 400 is adjusted to the outer ring position of the semi-circular connecting cylinder 311 using the semi-circular adjusting cylinder 313. The rotating assembly 400 is located outside the semi-circular adjusting cylinder 313, so that the semi-circular connecting cylinder 311, the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340 directly support the pressure formed by the rotating assembly 400, reducing the generation of torque. The two opposing semi-circular connecting plates 314 are connected together by the rotating assembly 400, and with the help of the connecting bolts 320, the connecting semi-circular frame 310 is connected into a stable whole.

[0032] Please see Figures 1 to 4The rotating assembly 400 includes a fixed inner ring 410, a bearing 420, a rotating outer ring 430, a locking ring 440, positioning beads 450, and a fixing screw assembly 460. The inner ring of the bearing 420 is fixedly sleeved on the fixed inner ring 410, and the rotating outer ring 430 is fixedly sleeved on the outer ring of the bearing 420. The periphery of the locking ring 440 is connected to the periphery of the rotating outer ring 430. The locking ring 440 and the rotating outer ring 430 are located on both sides of the fixed inner ring 410. The positioning beads 450 are equally spaced around the locking ring 440 by threaded penetration. The ball of the positioning bead 450 is pressed against the fixed inner ring 410. The fixing screw assembly 460 is equally spaced outside the fixed inner ring 410. The fixed inner ring 410 is fixedly connected to the mating circle adjustment assembly 300 through the fixing screw assembly 460. The measuring assembly 500 is connected to the rotating outer ring 430. After the screw of the fixing screw assembly 460 passes through the connecting hole 350, it is tightened by the nut of the fixing screw assembly 460. The fixing inner ring 410 supports the bearing 420, and the rotating outer ring 430 rotates through the bearing 420, driving the measuring component 500 to rotate. The inner ring of the rotating outer ring 430 is guided to rotate by the bearing 420. Since the locking ring 440 and the rotating outer ring 430 are fixed to each other, the positioning bead 450 presses against the fixing inner ring 410, and the outer ring of the rotating outer ring 430 is locked by the positioning bead 450 to rotate, making the rotation process of the rotating outer ring 430 more stable.

[0033] Please see Figures 1 to 5 The fixed inner ring component 410 includes a bearing inner ring fixing sleeve 411 and a mating annular plate 412. The mating annular plate 412 is fixedly sleeved on the side of the bearing inner ring fixing sleeve 411 near the mating circle adjustment assembly 300. The inner ring of the bearing 420 is fixedly sleeved on the bearing inner ring fixing sleeve 411. The fixing screw assembly 460 is fixedly connected to the outside of the mating annular plate 412, and the ball bearings of the positioning beads 450 are pressed against the periphery of the outside of the mating annular plate 412. The inner ring of the bearing 420 is fixedly sleeved on the bearing inner ring fixing sleeve 411 by interference fit, and the mating annular plate 412 is fixed on the connecting holes 350 of the two semi-circular connecting plates 314 by the fixing screw assembly 460.

[0034] Please see Figures 1 to 5The rotating outer ring component 430 includes a bearing outer ring fixing sleeve 431, a rotating annular plate 432, a first fixing annular plate 433, and a fixing bolt assembly 434. The bearing outer ring fixing sleeve 431 is fixedly sleeved on the outer ring of the bearing 420. The rotating annular plate 432 is fixedly sleeved on the side of the bearing outer ring fixing sleeve 431 near the mating circle adjustment assembly 300. The first fixing annular plate 433 is fixedly connected to the outside of the rotating annular plate 432. The first fixing annular plate 433 is connected to the periphery of the locking ring component 440 through the fixing bolt assembly 434. The measuring assembly 500 is connected to the outside of the rotating annular plate 432. Both the mating bolt assembly 320 and the fixing bolt assembly 434 are composed of bolts and nuts. A handle can be installed on the rotating annular plate 432. The bearing outer ring fixing sleeve 431 rotates synchronously through the bearing 420. By applying external force through the handle, the rotating annular plate 432 rotates around the bearing 420 through the bearing outer ring fixing sleeve 431.

[0035] Please see Figures 1 to 5 The locking ring component 440 includes a locking ring 441, a mounting cylinder 442, and a second fixing annular plate 443. The mounting cylinder 442 is evenly spaced on the outside of the locking ring 441 by a fixed through-hole arrangement. The positioning beads 450 are threaded into the mounting cylinder 442. The second fixing annular plate 443 is fixedly sleeved on the outer wall of the locking ring 441. The second fixing annular plate 443 and the first fixing annular plate 433 are fixedly connected by a group of fixing bolts 434. The locking ring 441 consists of an outer ring plate and an inner ring cylinder. The outer ring plate is fixed to the outside of the inner ring cylinder, and the mounting cylinders 442 are evenly spaced on the outer ring plate. The second fixed annular plate 443 and the first fixed annular plate 433 are tightly connected to each other. The bolts of the fixing bolt group 434 pass through the second fixed annular plate 443 and the first fixed annular plate 433, and are then tightened by the nuts of the fixing bolt group 434, so that the locking ring 440 and the rotating outer ring 430 are connected as one unit. The locking ring 441 is limited by the positioning bead 450 and guided to rotate by the ball of the positioning bead 450, so that the rotating outer ring 430 is also limited and guided to rotate by the positioning bead 450.

[0036] Please see Figures 1 to 6The measuring assembly 500 includes an outer diameter measuring rod 510, an end face measuring rod 520, a sliding sleeve 530, a locking screw 540, a pump shaft outer diameter measuring dial indicator 550, an end face measuring dial indicator 560, and a docking shaft outer diameter measuring dial indicator 570. One end of the outer diameter measuring rod 510 is fixedly connected to the rotating assembly 400. The sliding sleeve 530 is fixedly connected to one end of the end face measuring rod 520 and slides on the outer diameter measuring rod 510. The locking screw 540 passes through the sliding sleeve 530 through a thread and presses against the outer diameter measuring rod 510. The end face measuring... The rod 520 is located between the shaft flange of the spray pump 100 and the flange of the docking shaft 200. The pump shaft outer diameter measuring dial indicator 550 and the docking shaft outer diameter measuring dial indicator 570 are set at both ends of the outer diameter measuring rod 510. The pump shaft outer diameter measuring dial indicator 550 and the docking shaft outer diameter measuring dial indicator 570 are respectively pressed against the outer ring of the shaft flange of the spray pump 100 and the outer ring of the flange of the docking shaft 200. The end face measuring dial indicator 560 is set on the end face measuring rod 520. The end face measuring dial indicator 560 can press against the end face of the shaft flange of the spray pump 100 and the end face of the flange of the docking shaft 200 respectively by rotating. Installation method of pump shaft outer diameter measuring dial indicator 550, docking shaft outer diameter measuring dial indicator 570 and end face measuring dial indicator 560: The pump shaft outer diameter measuring dial indicator 550, docking shaft outer diameter measuring dial indicator 570 and end face measuring dial indicator 560 are slidably sleeved on the outer diameter measuring rod 510 and end face measuring rod 520 respectively. Then, by tightening the locking bolts, the pump shaft outer diameter measuring dial indicator 550 and docking shaft outer diameter measuring dial indicator 570 are locked on the outer diameter measuring rod 510, and the end face measuring dial indicator 560 is locked on the end face measuring rod 520. Lock the pump shaft outer diameter measuring dial indicator 550 onto the outer diameter measuring rod 510, so that the measuring head of the pump shaft outer diameter measuring dial indicator 550 presses against the outer ring of the flange on the shaft of the spray pump 100. Slide the sliding sleeve 530 onto the outer diameter measuring rod 510 and lock the sliding sleeve 530 onto the outer diameter measuring rod 510 by the locking screw 540. Fix the end face measuring dial indicator 560 onto the end face measuring rod 520, so that the measuring head of the end face measuring dial indicator 560 presses against the end face of the flange on the shaft of the spray pump 100. Then fix the docking shaft outer diameter measuring dial indicator 570 onto the outer diameter measuring rod 510, so that the measuring head of the docking shaft outer diameter measuring dial indicator 570 presses against the outer ring of the flange on the docking shaft 200. The rotating assembly 400 rotates, and the measuring assembly 500 rotates with it. First, the end-face measuring dial indicator 560 is used to measure the values ​​at multiple points on the shaft flange end face of the spray pump 100. The values ​​at corresponding points are observed and compared using the end-face measuring dial indicator 560. Points with smaller values ​​indicate that the end-face measuring dial indicator 560 is farther from the shaft flange end face of the spray pump 100. The mating circle adjustment assembly 300 is then adjusted to change the position of the measuring position of the measuring assembly 500 at that point from the shaft flange end face of the spray pump 100. This process ensures that the measured values ​​at all points on the shaft flange end face of the spray pump 100 are the same. At this point…The rotating surface of the end face measuring dial indicator 560 on the upper end face measuring rod 520 is parallel to the end face of the shaft flange of the spray pump 100. The measuring assembly 500 is parallel to the axis of rotation of the spray pump 100. The rotating assembly 400 continues to rotate, and the pump shaft outer diameter measuring dial indicator 550 measures the values ​​at multiple points on the outer diameter of the shaft flange of the spray pump 100. The values ​​at corresponding points are observed and compared using the pump shaft outer diameter measuring dial indicator 550. A larger value indicates that the pump shaft outer diameter measuring dial indicator 550 is closer to the outer diameter of the shaft flange of the spray pump 100 at that point. The mating circle adjustment assembly 300 is then adjusted to make the pump shaft outer diameter measuring dial indicator 550 at that point closer to the outer diameter of the shaft flange. The position of the flange end face on the shaft of the spray pump 100 is changed, and the measured values ​​at various points on the outer diameter of the flange on the shaft of the spray pump 100 are adjusted to be the same. At this time, the mounting position of the pump shaft outer diameter measuring dial indicator 550 on the outer diameter measuring rod 510 and the mounting position of the docking shaft outer diameter measuring dial indicator 570 are aligned with the shaft of the spray pump 100. (It should be noted that if the measured value of the flange end face on the shaft of the spray pump 100 changes when measuring the values ​​at various points on the outer diameter of the flange on the shaft, the outer ring adjusting bolt 340 needs to be adjusted again to make the measured values ​​of the flange end face on the shaft of the spray pump 100 the same, until the end face measuring dial indicator 560 is aligned with the flange on the shaft of the spray pump 100.) While the measured values ​​at the end face are the same, the multi-point values ​​of the outer ring of the flange on the shaft of the spray pump 100 measured by the dial indicator 550 on the outer diameter of the pump shaft are also the same. The dial indicators 560, 550, and 570 on the outer diameter of the connecting shaft are aligned around the axis of rotation and the axis of the spray pump 100. The dial indicator 560 is rotated so that its measuring head presses against the flange end face of the connecting shaft 200. The dial indicator 560 is then locked. Based on the principle of equal multi-point measured values, the flange end face of the connecting shaft 200 is adjusted to be aligned with the flange end face of the spray pump 100 using the dial indicator 560. In a parallel position, the outer diameter of the flange of the docking shaft 200 is measured and adjusted using a dial indicator 570 to ensure alignment between the outer diameter of the flange of the docking shaft 200 and the outer diameter of the flange on the shaft of the spray pump 100. This completes the alignment process between the spray pump and the docking shaft. This type of spray pump docking shaft alignment measuring mechanism eliminates the need for workers to repeatedly rotate the spray pump shaft; only the annular plate 432 needs to be turned. This reduces labor consumption and significantly shortens working time, as it eliminates the need for repeated shaft rotation. In existing technologies using magnetic supports, any movement of the magnetic support necessitates re-rotating the shaft for measurement. Once the spray pump docking shaft alignment measuring mechanism is locked in place, it remains stable and will not deviate due to small external forces.

[0037] Specifically, the working principle of the pump shaft alignment measuring mechanism is as follows: During use, two semi-circular connecting cylinders 311 are arranged around the back of the pump shaft flange of the pump 100. The two semi-circular connecting cylinders 311 are fixed together by connecting bolts 320. The back of the pump shaft flange of the pump 100 is pressed together by the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340. After the screw of the fixing screw assembly 460 passes through the connecting hole 350, it is tightened by the nut of the fixing screw assembly 460, locking the pump shaft outer diameter measuring dial indicator 550 onto the outer diameter measuring rod 510, thus enabling the pump shaft outer diameter to be measured. The measuring head of the gauge 550 is pressed against the outer ring of the flange on the shaft of the spray pump 100. The sliding sleeve 530 is placed on the outer diameter measuring rod 510, and the sliding sleeve 530 is locked on the outer diameter measuring rod 510 by the locking screw 540. The end face measuring dial indicator 560 is fixed on the end face measuring rod 520, so that the measuring head of the end face measuring dial indicator 560 is pressed against the end face of the flange on the shaft of the spray pump 100. Then, the outer diameter measuring dial indicator 570 of the docking shaft is fixed on the outer diameter measuring rod 510, so that the measuring head of the outer diameter measuring dial indicator 570 of the docking shaft is pressed against the outer ring of the flange on the docking shaft 200.

[0038] First, use a dial indicator 560 to measure the points corresponding to the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340 on the end face of the shaft flange of the spray pump 100. Observe the values ​​at the corresponding points using the dial indicator 560 and compare the values. Tighten the outer ring adjusting bolt 340 at the point with the smaller value, and loosen the corresponding outer ring adjusting bolt 340. (It should be noted that if the dial indicator 560 value does not change, the inner ring adjusting bolt 330 at the point with the smaller value can be loosened appropriately, and the corresponding inner ring adjusting bolt 330 can be tightened to leave room for the deflection of the semi-circular bracket 310.) Adjust the measured values ​​at all points on the end face of the shaft flange of the spray pump 100 to be the same. At this time, the dial indicator 520 on the end face measuring rod... The rotating surface of dial indicator 560 is parallel to the end face of the flange on the shaft of the spray pump 100. The end face measuring dial indicator 560, the pump shaft outer diameter measuring dial indicator 550, and the docking shaft outer diameter measuring dial indicator 570 are parallel to the axis of rotation and the axis of the spray pump 100. Then, the annular plate 432 is rotated further. The pump shaft outer diameter measuring dial indicator 550 measures the points on the outer diameter of the flange on the shaft of the spray pump 100 corresponding to the inner ring adjusting bolt 330 and the outer ring adjusting bolt 340. The values ​​at the corresponding points are observed using the pump shaft outer diameter measuring dial indicator 550 and compared. The outer ring adjusting bolt 340 and inner ring adjusting bolt 330 at the point with the larger value are simultaneously loosened, and the corresponding outer ring adjusting bolt 340 and inner ring adjusting bolt 330 are simultaneously tightened. The spray pump 100 is then... The measured values ​​at all points on the outer diameter of the flange on the shaft are adjusted to be the same. At this time, the shaft on the outer diameter measuring rod 510, where the pump shaft outer diameter measuring dial indicator 550 is installed, and the shaft on the mating shaft outer diameter measuring dial indicator 570 are installed, are aligned with the shaft of the spray pump 100. (It should be noted that when measuring the values ​​at all points on the outer diameter of the flange on the shaft of the spray pump 100, if the measured values ​​at the end face of the flange on the shaft of the spray pump 100 are found to change, the outer ring adjusting bolt 340 needs to be adjusted again to make the measured values ​​at the end face of the flange on the shaft of the spray pump 100 the same, until the measured values ​​at the end face measuring dial indicator 560 and the multi-point values ​​at the outer diameter of the flange on the shaft of the spray pump 100 are also the same.) 0. The pump shaft outer diameter measuring dial indicator 550 and the docking shaft outer diameter measuring dial indicator 570 are aligned around the rotation axis and the axis of the spray pump 100. The end face measuring dial indicator 560 is rotated so that its measuring head presses against the flange end face of the docking shaft 200. The end face measuring dial indicator 560 is locked. Using the end face measuring dial indicator 560, the flange end face of the docking shaft 200 is adjusted to a position parallel to the flange end face on the shaft of the spray pump 100. Then, the docking shaft outer diameter measuring dial indicator 570 is used to measure and adjust the outer diameter of the flange of the docking shaft 200 so that the outer diameter of the flange of the docking shaft 200 is aligned with the outer diameter of the flange on the shaft of the spray pump 100. This completes the shaft alignment process between the spray pump and the docking shaft. This type of spray pump docking shaft alignment measuring mechanism eliminates the need for workers to repeatedly rotate the spray pump shaft.Only the rotating annular plate 432 needs to be moved, requiring minimal manual labor. Since there's no need for repeated shaft rotation, working time is significantly reduced. In existing technologies using magnetic supports, any movement of the magnetic support necessitates re-rotating the shaft for measurement. Once the pump docking shaft alignment and measuring mechanism is locked in place, the overall system remains stable and will not deviate due to small external forces.

[0039] The above are merely embodiments of this utility model and are not intended to limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A spray pump docking shaft alignment measuring mechanism, characterized in that, include: Spray pump (100); Docking shaft (200); A docking circle adjustment assembly (300) is disposed on the back of the shaft flange of the injection pump (100); A rotating assembly (400) is fixedly connected to the docking circle adjustment assembly (300), which can adjust the rotation center axis of the rotating assembly (400) to coincide with the axis of the spray pump (100). A measuring component (500) is mounted on the rotating part of the rotating component (400). The outer diameter measuring head of the measuring component (500) can press against the outer diameter of the shaft flange of the spray pump (100) and the outer diameter of the flange of the docking shaft (200). The end face measuring head of the measuring component (500) can press against the end face of the shaft flange of the spray pump (100) and the end face of the flange of the docking shaft (200). The measuring component (500) can measure multiple point values ​​of the shaft flange end face and outer diameter of the spray pump (100) and the flange end face and outer diameter of the docking shaft (200).

2. The spray pump docking shaft alignment measuring mechanism according to claim 1, characterized in that, The mating circle adjustment assembly (300) includes a mating semicircular frame (310), a mating bolt group (320), an inner ring adjusting top bolt (330), and an outer ring adjusting top bolt (340). The mating points of the two mating semicircular frames (310) are connected by the mating bolt group (320). The ends of the inner ring adjusting top bolt (330) and the outer ring adjusting top bolt (340) are tapered. The inner ring adjusting top bolt (330) and the outer ring adjusting top bolt (340) are threaded through the mating semicircular frame (310). The adjusting top bolt (340) is arranged in two equally spaced rings around the docking semicircular frame (310) and surrounds the back of the shaft flange of the spray pump (100). The tapered portions of the inner ring adjusting top bolt (330) and the outer ring adjusting top bolt (340) press against the back of the shaft flange of the spray pump (100). The ring formed by the inner ring adjusting top bolt (330) is close to the shaft flange of the spray pump (100), and the ring formed by the outer ring adjusting top bolt (340) is away from the shaft flange of the spray pump (100). The rotating assembly (400) is connected to the docking semicircular frame (310).

3. The spray pump docking shaft alignment measuring mechanism according to claim 2, characterized in that, The docking semicircular frame (310) includes a semicircular docking cylinder (311), a semicircular mounting plate (312), a semicircular adjusting cylinder (313), and a semicircular connecting plate (314). The semicircular docking cylinders (311) of the two docking semicircular frames (310) are docked and fixed by the docking bolt group (320). The inner ring adjusting top bolt (330) and the outer ring adjusting top bolt (340) are threaded through the semicircular docking cylinder (311). The semicircular mounting plate (312) The semicircular adjusting cylinder (313) is fixedly sleeved on the outside of the semicircular docking cylinder (311) near the shaft flange of the spray pump (100). The semicircular adjusting cylinder (313) is fixedly sleeved on the outside of the semicircular mounting plate (312) near the shaft flange of the spray pump (100). The semicircular connecting plate (314) is fixedly sleeved on the end of the semicircular adjusting cylinder (313) away from the shaft flange of the spray pump (100). The rotating assembly (400) is connected to the semicircular connecting plate (314).

4. The spray pump docking shaft alignment measuring mechanism according to claim 1, characterized in that, The rotating assembly (400) includes a fixed inner ring (410), a bearing (420), a rotating outer ring (430), a locking ring (440), a positioning bead (450), and a fixing screw assembly (460). The inner ring of the bearing (420) is fixedly sleeved on the fixed inner ring (410), and the rotating outer ring (430) is fixedly sleeved on the outer ring of the bearing (420). The periphery of the locking ring (440) is connected to the periphery of the rotating outer ring (430). The locking ring (440) and the fixed inner ring (410) are connected to the outer ring of the bearing (420). The rotating outer ring (430) is located on both sides of the fixed inner ring (410). The positioning beads (450) are equally spaced around the locking ring (440) by means of threaded penetration. The ball of the positioning bead (450) is pressed against the fixed inner ring (410). The fixing screw group (460) is equally spaced on the outside of the fixed inner ring (410). The fixed inner ring (410) is fixedly connected to the mating circle adjustment assembly (300) by the fixing screw group (460).

5. The spray pump docking shaft alignment measuring mechanism according to claim 4, characterized in that, The fixed inner ring component (410) includes a bearing inner ring fixing sleeve (411) and a docking annular plate (412). The docking annular plate (412) is fixedly sleeved on the side of the bearing inner ring fixing sleeve (411) near the docking circle adjustment assembly (300). The inner ring of the bearing (420) is fixedly sleeved on the bearing inner ring fixing sleeve (411). The fixing screw assembly (460) is fixedly connected to the outside of the docking annular plate (412). The ball of the positioning bead (450) is pressed against the periphery of the outside of the docking annular plate (412).

6. The spray pump docking shaft alignment measuring mechanism according to claim 4, characterized in that, The rotating outer ring component (430) includes a bearing outer ring fixing sleeve (431), a rotating annular plate (432), a first fixing annular plate (433), and a fixing bolt group (434). The bearing outer ring fixing sleeve (431) is fixedly sleeved on the outer ring of the bearing (420). The rotating annular plate (432) is fixedly sleeved on the side of the bearing outer ring fixing sleeve (431) near the mating circle adjustment component (300). The first fixing annular plate (433) is fixedly connected to the outside of the rotating annular plate (432). The first fixing annular plate (433) is connected to the periphery of the locking ring component (440) through the fixing bolt group (434).

7. The spray pump docking shaft alignment measuring mechanism according to claim 6, characterized in that, The locking ring component (440) includes a locking ring (441), a mounting cylinder (442), and a second fixing annular plate (443). The mounting cylinder (442) is evenly spaced outside the locking ring (441) by a fixed through-hole method. The positioning bead (450) is threaded into the mounting cylinder (442). The second fixing annular plate (443) is fixedly sleeved on the outer wall of the locking ring (441). The second fixing annular plate (443) and the first fixing annular plate (433) are fixedly connected by the fixing bolt group (434).

8. The spray pump docking shaft alignment measuring mechanism according to claim 1, characterized in that, The measuring assembly (500) includes an outer diameter measuring rod (510), an end face measuring rod (520), a sliding sleeve (530), a locking screw (540), a pump shaft outer diameter measuring dial indicator (550), an end face measuring dial indicator (560), and a docking shaft outer diameter measuring dial indicator (570). One end of the outer diameter measuring rod (510) is fixedly connected to the rotating assembly (400), and the sliding sleeve (530) is fixedly connected to one end of the end face measuring rod (520). The sliding sleeve (530) is slidably sleeved on the outer diameter measuring rod (510). The locking screw (540) passes through the sliding sleeve (530) through a thread and is pressed against the outer diameter measuring rod (510). The measuring rod (520) is located between the shaft flange of the spray pump (100) and the flange of the docking shaft (200). The pump shaft outer circle measuring dial indicator (550) and the docking shaft outer circle measuring dial indicator (570) are set at both ends of the outer circle measuring rod (510). The pump shaft outer circle measuring dial indicator (550) and the docking shaft outer circle measuring dial indicator (570) are respectively pressed against the outer ring of the shaft flange of the spray pump (100) and the outer ring of the flange of the docking shaft (200). The end face measuring dial indicator (560) is set on the end face measuring rod (520). The end face measuring dial indicator (560) can press against the end face of the shaft flange of the spray pump (100) and the end face of the flange of the docking shaft (200) respectively by turning.

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