Screw pump disassembly and assembly equipment and disassembly and assembly methods

Abstract

This invention discloses a screw pump disassembly and assembly device and method. The screw pump disassembly and assembly device includes a mounting frame, a drive assembly, a sliding assembly, and a positioning assembly. The drive assembly is used to connect to the rotor of the screw pump. The sliding assembly can move on the mounting frame towards or away from the drive assembly. The positioning assembly includes a stop structure and two stop seats. The two stop seats are arranged relatively apart on the sliding assembly and are used to clamp the stator from both ends of the screw pump stator. The stop seat near the drive assembly has a first through hole for the rotor to pass through. The stop seat is also provided with a stop structure for abutting against the limiting block on the periphery of the stator. The stop structure is used to restrict the axial rotation of the stator. Thus, the two stop seats can clamp the two ends of the stator, and the stop structure can restrict the axial rotation of the stator, thereby eliminating the risk of the stator rotating during disassembly and assembly.

Description

Technical Field

[0001] This invention belongs to the field of screw pump technology, specifically relating to a screw pump disassembly and assembly device and method. Background Technology

[0002] Screw-type mortar pumps are a type of single-screw pump. The main working components of a single-screw pump are an eccentric helical screw (called the rotor) and a screw bushing (called the stator) with a double-helix inner surface. Its working principle is that when the motor drives the pump shaft to rotate, the screw rotates around its own axis while simultaneously rolling along the inner surface of the bushing, thus forming a sealed chamber within the pump. With each revolution of the screw, the medium within the sealed chamber is propelled forward by one screw pitch. As the screw continues to rotate, the medium is forced from one sealed chamber to another, eventually being expelled from the pump body.

[0003] Because the working medium is mortar, the stator rubber bushing of a screw-type mortar pump is prone to wear and damage, leading to failure. To replace the stator rubber bushing periodically, a disassembly and assembly tool is required. Chinese Patent 202122348816.1 discloses a large-scale high-pressure single-screw pump stator disassembly and assembly tool, which relies on two upper and lower V-shaped clamping plates to limit the stator's movement. However, this tool cannot completely restrict the stator's axial rotation, and the risk of rotation still exists during disassembly and assembly. Summary of the Invention

[0004] To address the aforementioned defects or deficiencies, this invention provides a screw pump disassembly and assembly device and method, aiming to solve the technical problem that existing disassembly and assembly fixtures cannot completely restrict the degree of freedom of stator rotation in the axial direction.

[0005] To achieve the above objectives, the present invention provides a screw pump assembly / disassembly device, wherein the screw pump assembly / disassembly device includes: a mounting frame, a drive assembly, a sliding assembly, and a positioning assembly; the drive assembly is mounted on the mounting frame and is used to connect with the rotor of the screw pump; the sliding assembly is movably mounted on the mounting frame and can move towards or away from the drive assembly; the positioning assembly includes a stop structure and two stop seats, the two stop seats are arranged relatively apart on the sliding assembly and are used to clamp the stator from both ends of the stator of the screw pump respectively; the stop seat near the drive assembly has a first through hole for the rotor to pass through, and the stop seat is also provided with a stop structure, the stop structure being used to abut against a limiting block on the periphery of the stator to limit the axial rotation of the stator.

[0006] In this embodiment of the invention, both stop seats are provided with positioning grooves. The positioning grooves of the two stop seats are used for the two ends of the stator to be inserted and abutted one by one to clamp the stator between the two stop seats. A first through hole is provided at the bottom of the positioning groove of the stop seat near the drive assembly.

[0007] In this embodiment of the invention, the stop seat includes a seat body disposed on the sliding assembly and a positioning ring detachably disposed on the seat body. The positioning ring has a positioning groove on the side away from the seat body and a first through hole at the bottom of the positioning groove. The seat body has a second through hole corresponding to the first through hole. The stop structure is disposed on the seat body and located outside the positioning ring.

[0008] In this embodiment of the invention, the positioning ring is provided with at least two positioning holes spaced apart around the positioning groove, and the base body is provided with at least two positioning posts around the second through hole, with the at least two positioning posts correspondingly passing through the at least two positioning holes of the positioning ring.

[0009] In this embodiment of the invention, the stop structure includes four first stop blocks, wherein two first stop blocks are respectively disposed on both sides of the limiting block on the first side of the stator, and the other two first stop blocks are respectively disposed on both sides of the limiting block on the second side of the stator.

[0010] In this embodiment of the invention, the positioning component further includes a support plate, which is disposed on the sliding component and used to support the lower side of the stator.

[0011] In this embodiment of the invention, the sliding assembly includes a slide rail mounted on a mounting bracket and two sliding plates movably mounted on the slide rail. Two stop seats are correspondingly mounted on the two sliding plates. The screw pump assembly and disassembly device also includes a connecting assembly for detachably connecting the two sliding plates. The connection length of the connecting assembly is adjustable.

[0012] In this embodiment of the invention, the connecting assembly includes a connecting screw and two connecting seats. The two connecting seats are respectively disposed on two sliding plates and are detachably connected by the connecting screw.

[0013] In this embodiment of the invention, the mounting frame includes a frame body, a lifting frame, and a mounting plate. The lifting frame is mounted on the frame body, one end of the mounting plate is movably hinged to the frame body, the other end of the mounting plate is mounted on the lifting frame, a slide rail is mounted on the end of the mounting plate near the lifting frame, and a drive assembly is mounted on the end of the mounting plate away from the lifting frame.

[0014] In this embodiment of the invention, the screw pump disassembly and assembly equipment further includes a counterweight disposed on a sliding plate.

[0015] In this embodiment of the invention, the drive assembly includes a fixed base, a motor, and a coupling. The fixed base is mounted on a mounting bracket, and the motor is mounted on the fixed base. The output shaft of the motor is oriented toward the first through hole and connected to the rotor via the coupling. The centerline of the output shaft of the motor is collinear with the centerline of the first through hole.

[0016] To achieve the above objectives, the present invention also provides a method for disassembling and assembling a screw pump, wherein the method is applied to a disassembly and assembly device for a screw pump as described above, and the disassembly and assembly method includes a disassembly method and an assembly method, wherein the disassembly method includes:

[0017] The rotor of the screw pump is positioned to extend through the first through hole between the two stop seats;

[0018] The stator of the screw pump is clamped between two stop seats, and the stop structure on the stop seats axially limits and abuts the limiting block.

[0019] The rotor is connected to the drive assembly at one end extending from the first through hole;

[0020] The control drive assembly drives the rotor to rotate, so that the stator follows the sliding assembly and moves in a direction away from the drive assembly;

[0021] Assembly methods include:

[0022] The stator is placed between two stop seats and clamped, and the stop structure on the stop seats axially limits and abuts the limiting block;

[0023] Connect the rotor to the drive assembly;

[0024] The control drive assembly drives the rotor to rotate and pushes the sliding assembly to move toward the drive assembly so that the rotor passes through the first through hole and is inserted into the stator.

[0025] Through the above technical solutions, the screw pump disassembly and assembly equipment provided in the embodiments of the present invention has the following beneficial effects:

[0026] When using the aforementioned screw pump assembly / disassembly equipment, the two stop seats of the positioning component are relatively spaced apart on the sliding component, and can clamp the stator from both ends of the screw pump stator. A first through hole for the rotor of the screw pump is provided on one of the stop seats near the drive component, allowing the stator of the screw pump to be assembled or disassembled to be clamped between the two stop seats. Furthermore, the stop seats are equipped with a stop structure that abuts against a limiting block on the periphery of the stator. This stop structure restricts the axial rotation of the stator by abutting against the limiting block. Thus, the two stop seats clamp both ends of the stator, and the stop structure restricts the degree of freedom of the stator's axial rotation, eliminating the risk of the stator rotating during assembly / disassembly, thereby improving assembly / disassembly efficiency.

[0027] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0028] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a screw pump disassembly and assembly device according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a positioning ring according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of a screw pump stator according to an embodiment of the present invention;

[0032] Figure 4 This is a partial structural schematic diagram of a screw pump assembly / disassembly device according to an embodiment of the present invention;

[0033] Figure 5 yes Figure 4 Enlarged diagram of point A in the diagram;

[0034] Figure 6 yes Figure 4 Enlarged diagram of point B in the image.

[0035] Explanation of reference numerals in the attached figures

[0036] 1 mounting bracket 11 bracket body

[0037] 12 Lifting frame 13 Mounting plate

[0038] 14 Counterweight 2 Drive Component

[0039] 21 Mounting bracket 22 Motor

[0040] 23 Coupling 3 Sliding assembly

[0041] 31 Slide rail 32 Sliding plate

[0042] 321 Slider 4 Stop Seat

[0043] 41 seat body 411 vertical plate part

[0044] 412 Horizontal plate section 413 Reinforcing plate

[0045] 414 First via 415 Through hole

[0046] 416 Positioning pin; 42 Positioning ring

[0047] 421 Positioning groove; 422 Second through hole

[0048] 423 Positioning hole 5 Stop structure

[0049] 51 First stop block 52 Second stop block

[0050] 6. Connecting Components 61. Connecting Socket

[0051] 62 Connecting screw 7 Support plate

[0052] 8. Stator 81. Limiting block

[0053] 9 rotors Detailed Implementation

[0054] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0055] The disassembly and assembly equipment for the screw pump of the present invention will now be described with reference to the accompanying drawings.

[0056] like Figures 1 to 3 As shown, the present invention provides a screw pump disassembly and assembly device, which includes: a mounting frame 1, a drive assembly 2, a sliding assembly 3, and a positioning assembly; the drive assembly 2 is mounted on the mounting frame 1 and is used to connect with the rotor 9 of the screw pump; the sliding assembly 3 is movably mounted on the mounting frame 1 and can move towards or away from the drive assembly 2; the positioning assembly includes a stop structure 5 and two stop seats 4, which are arranged relatively apart on the sliding assembly 3 and are used to clamp the stator 8 from both ends of the stator 8 of the screw pump respectively; the stop seat 4 near the drive assembly 2 has a first through hole 414 for the rotor 9 to pass through, and the stop seat 4 is also provided with a first stop block 51, which abuts against the limiting block 81 on the periphery of the stator 8 to limit the axial rotation of the stator 8.

[0057] When using the aforementioned screw pump assembly / disassembly equipment, the two stop seats 4 of the positioning assembly are relatively spaced apart on the sliding assembly 3, and can clamp the stator 8 from both ends of the screw pump stator 8 respectively. A first through hole 414 for the rotor 9 of the screw pump to pass through is provided on one of the stop seats 4 near the drive assembly 2, so that the stator 8 of the screw pump to be assembled can be clamped between the two stop seats 4, and the stator 8 of the screw pump to be disassembled can also be clamped between the two stop seats 4. In addition, the stop seat 4 is provided with a stop structure 5 for abutting against the limiting block 81 on the periphery of the stator 8. The stop structure 5 can restrict the axial rotation of the stator 8 by abutting against the limiting block 81. Thus, the two ends of the stator 8 can be clamped by the two stop seats 4, and the stop structure 5 can restrict the degree of freedom of the stator 8 to rotate in the axial direction, eliminating the risk of the stator 8 rotating during the assembly / disassembly process, thereby improving the assembly / disassembly efficiency.

[0058] It should be noted that the present invention mainly restricts the degree of freedom of the stator 8 to rotate axially by engaging the stop structure 5 on the disassembly and assembly equipment with the limiting block 81 on the stator 8 of the screw pump. Compared with the traditional method of "clamping" and "locking" the stator 8, this invention eliminates the risk of the stator 8 rotating relative to the "clamping" and "locking" devices during the disassembly and assembly of the screw pump, and does not damage the surface of the stator 8.

[0059] In this embodiment of the invention, each of the two stop seats 4 is provided with a positioning groove 421. The positioning grooves 421 of the two stop seats 4 are used for the two ends of the stator 8 of the screw pump to be inserted and abutted one-to-one, so as to clamp the stator 8 between the two stop seats 4. The bottom of the positioning groove 421 of the stop seat 4 near the drive assembly 2 is provided with a first through hole 414. That is, the bottom of the positioning groove 421 can abut with the end of the stator 8, and the lateral inner peripheral wall of the positioning groove 421 can abut with the circumferential outer peripheral wall of the stator, thereby playing a further positioning role.

[0060] In this embodiment of the invention, the stop seat 4 includes a seat body 41 disposed on the sliding assembly 3 and a positioning ring 42 detachably disposed on the seat body 41. The positioning ring 42 has a positioning groove 421 on the side opposite to the seat body 41, and a first through hole 414 is formed at the bottom of the positioning groove 421. The seat body 41 has a second through hole 422 corresponding to the first through hole 414. The stop structure 5 is disposed on the seat body 41 and located outside the positioning ring 42. For a screw pump to be disassembled, the rotor 9 of the screw pump can pass through the first through hole 414 and the second through hole 422 in sequence, so that one end of the stator 8 is inserted into the positioning groove 421, and the rotor 9 can pass through the positioning ring 42 and the seat body 41 to connect with the drive assembly 2. For a screw pump to be assembled, the rotor 9 of the screw pump can pass through the second through hole 422 and the first through hole 414 in sequence, so as to be assembled with the stator 8 sandwiched between the two stop seats 4. Furthermore, since the positioning ring 42 is detachably mounted on the base body 41, and changing the diameter of the positioning groove 421 on the positioning ring 42 can limit the stator 8 of different diameters, different diameter screw pumps can be accommodated by replacing the positioning ring 42. Specifically, the base body 41 can be detachably mounted on the sliding assembly 3, so that the stator 8 can be easily clamped between the two stop seats 4, and the base body 41 can be easily replaced. The positioning groove 421, the first through hole 414 and the second through hole 422 can all be circular, and the diameter of the first through hole 414 and the second through hole 422 is smaller than the diameter of the positioning groove 421 and larger than the diameter of the rotor 9. It should be noted that the two stop seats 4 can have the same structure or they can have certain differences. For example, the base body 41 located away from the drive assembly 2 may not have the second through hole 422, while the base body 41 located closer to the drive assembly 2 needs to have the second through hole 422 so that the rotor 9 can pass through the base body 41.

[0061] Further, see Figures 4 to 6 The seat body 41 can be configured as an L-shaped plate. The vertical plate portion 411 of the L-shaped plate has a second through hole 422 and a corresponding positioning ring 42. The horizontal plate portion 412 of the L-shaped plate bends and extends from the lower end of the vertical plate portion 411 toward the direction away from another stop seat 4 and is detachably mounted on the sliding assembly 3 through a threaded part. A reinforcing plate 413 connected to the horizontal plate portion 412 is provided on the side of the vertical plate portion 411 away from the positioning ring 42. There are two reinforcing plates 413, which are arranged relatively spaced apart to strengthen the seat body 41 and prevent deformation.

[0062] In the embodiment of the present invention, Figure 2 As shown, the positioning ring 42 surrounds the positioning groove 421 and is provided with at least two positioning holes 423 spaced apart. For example... Figure 4As shown, the base body 41 is provided with at least two positioning posts 416 around the second through hole 422, and the at least two positioning posts 416 are correspondingly inserted into at least two positioning holes 423 of the positioning ring 42. Specifically, the positioning holes 423 are open holes, that is, the positioning ring 42 can be hung on the positioning posts 416 on the base body 41 through the positioning holes 423, so as to facilitate the disassembly, assembly and replacement of the positioning ring 42. When the stator 8 of different diameters is replaced, the positioning effect of the positioning posts 416 on the positioning ring 42 can ensure that the spatial position of the stator 8 axis remains unchanged. In addition, the number of positioning holes 423 and positioning posts 416 is at least two, which can ensure the stable hanging of the positioning ring 42, and the end of the stator 8 can press the positioning ring 42 onto the corresponding base body 41. Of course, the present invention is not limited to this. The positioning posts 416 can also be provided as threaded parts, which pass through the positioning holes 423 and are inserted into the base body 41 to fasten the positioning ring 42 to the base body 41. More specifically, there can be four positioning holes 423 and four positioning posts 416. The four positioning holes 423 are evenly spaced around the positioning groove 421 on the positioning ring 42, and the four positioning posts 416 are evenly spaced around the second through hole 422 on the base body 41.

[0063] Further, see Figure 6 The upright plate 411 of the base body 41 has a through hole 415. The through hole 415 is provided on the outer side of the positioning groove 421 of the positioning ring 42. When it is necessary to remove the positioning ring 42 from the base body 41, a push rod can be used to apply force to the positioning ring 42 through the through hole 415 from the side of the upright plate 411 away from the positioning ring 42, so as to facilitate the removal of the positioning ring 42 from the positioning rod.

[0064] Please see again Figures 4 to 6 In this embodiment of the invention, the stop structure 5 further includes four first stop blocks 51, wherein two first stop blocks 51 are respectively disposed on both sides of the limiting block 81 on the first side of the stator 8, and the other two first stop blocks 51 are respectively disposed on both sides of the limiting block 81 on the second side of the stator 8. It should be particularly noted that, as... Figure 3As shown, two limiting blocks 81 can be provided on the stator 8, and the two limiting blocks 81 can be provided at one end of the stator 8 closer to the drive assembly 2 or at the other end away from the drive assembly 2. At the same time, the two limiting blocks 81 are respectively located on the left and right sides of one end of the stator 8. Then, the four first stop blocks 51 on the base body 41 can be used to limit the two limiting blocks 81 on the left and right sides of the stator 8. The two first limiting blocks 81 are respectively located at the upper and lower ends of the left limiting block 81, and the other two first limiting blocks 81 are respectively located at the upper and lower ends of the right limiting block 81, thereby further reliably limiting the axial rotation of the stator 8. Of course, the present invention is not limited to this. Four limiting blocks 81 can be provided on the stator 8, two of which are respectively located on the left and right sides of the first end of the stator 8, and the other two are respectively located on the left and right sides of the second end of the stator 8. In addition, it is also possible for each base body 41 to be provided with two first stop blocks 51. The two first stop blocks 51 of one base body 41 can be respectively located on the upper side of the two limiting blocks 81 at the first end of the stator 8, and the two first stop blocks 51 of the other base body 41 can be respectively located on the lower side of the two limiting blocks 81 at the second end of the stator 8.

[0065] Meanwhile, each seat body 41 is also provided with a second stop block 52, which is used to be placed on the side of the limiting block 81 away from the stator 8. That is, the limiting block 81 is located in the limiting space formed by the second stop block 52 and the two first stop blocks 51, and can strengthen the first stop block 51.

[0066] Please see again Figures 4 to 6 In this embodiment of the invention, the positioning component further includes a support plate 7, which is disposed on the sliding component 3 and used to support the lower side of the stator 8. The support plate 7 can further support the stator 8. Specifically, the support plate 7 can be configured as a Y-shaped plate, with the V-shaped opening of the Y-shaped plate facing upwards to support the lower side of the stator 8. The support plate 7 can be welded to the sliding plate 32. In order to accommodate stators 8 of different diameters, the angle of the V-shaped opening can be set so that even the stator 8 with the largest diameter can be placed within the V-shaped opening. More specifically, there are two support plates 7, which are respectively disposed near both ends of the stator 8 to further strengthen the support effect.

[0067] like Figure 1 and Figure 4As shown, in this embodiment of the invention, the sliding assembly 3 includes a slide rail 31 mounted on the mounting frame 1 and two sliding plates 32 movably mounted on the slide rail 31. Two stop seats 4 are correspondingly mounted on the two sliding plates 32. The screw pump assembly / disassembly device also includes a connecting assembly 6 that detachably connects the two sliding plates 32. The connection length of the connecting assembly 6 is adjustable. After the connecting assembly 6 is disassembled, the distance between the two sliding plates 32 can be adjusted, thereby adjusting the distance between the two stop seats 4 used to clamp the stator 8 of the screw pump. This allows the assembly / disassembly device to adapt to screw pumps of different lengths. After the distance between the two sliding plates 32 is adjusted and the stator 8 is installed, the two sliding plates 32 can be connected by the connecting assembly 6. Furthermore, since each of the two stop seats 4 is individually mounted on one sliding plate 32, it is convenient to clamp the stator 8 from both the front and rear sides. Specifically, there are two slide rails 31, which are arranged parallel to each other on the mounting frame 1. The sliding plate 32 includes a plate body and a slider 321 disposed at the bottom of the plate body. The slider 321 is movably disposed on the two slide rails 31.

[0068] In this embodiment of the invention, the connecting assembly 6 includes a connecting screw 62 and two connecting seats 61. The two connecting seats 61 are correspondingly disposed on the two sliding plates 32 and are detachably connected by the connecting screw 62. Specifically, each of the two connecting seats 61 has a through hole for the connecting screw 62 to pass through. Both ends of the connecting screw 62 have external threads and pass through the through holes of the two connecting seats 61 to connect with a nut. The nut can then stably lock the connecting screw 62 onto the two connecting seats 61. Specifically, there are two connecting assemblies 6, which are disposed on the left and right sides of the stop seat 4 and are used to connect the two sliding plates 32 respectively, thereby ensuring the stability of the connection.

[0069] See Figure 1 In this embodiment of the invention, the mounting frame 1 includes a frame body 11, a lifting frame 12, and a mounting plate 13. The lifting frame 12 is mounted on the frame body 11. One end of the mounting plate 13 is hinged to the frame body 11, and the other end of the mounting plate 13 is mounted on the lifting frame 12. A slide rail 31 is located at the end of the mounting plate 13 near the lifting frame 12, and a drive assembly 2 is located at the end of the mounting plate 13 away from the lifting frame 12. When the screw pump needs to be disassembled, the lifting frame 12 can be lowered so that the stator 8 is obliquely below the rotor 9, facilitating quick separation of the stator 8 and rotor 9. When the screw pump needs to be assembled, the lifting frame 12 can be raised so that the stator 8 is obliquely above the rotor 9, facilitating quick assembly of the stator 8 and rotor 9.

[0070] In this embodiment of the invention, the screw pump assembly / disassembly device further includes a counterweight 14 disposed on the sliding plate 32. The counterweight 14 increases the downward force when the lifting frame 12 tilts the mounting plate 13, further facilitating the separation or assembly of the stator 8 and rotor 9. When the screw pump needs assembly, the height of one side of the stator 8 is increased by the lifting frame 12, and the component of the counterweight 14's gravity along the slide rail 31 will assist in the installation of the screw pump, promoting the assembly of the stator 8 and rotor 9. When the screw pump needs disassembly, the height of one side of the stator 8 is decreased by the lifting frame 12, and the component of the counterweight 14's gravity along the slide rail 31 will assist in the disassembly of the screw pump, promoting the separation of the stator 8 and rotor 9. Specifically, the counterweight 14 is disposed on the sliding plate 32, away from the drive assembly 2, and located outside the stop seat 4.

[0071] In this embodiment of the invention, the drive assembly 2 includes a fixed base 21, a motor 22, and a coupling 23. The fixed base 21 is mounted on the mounting bracket 1, and the motor 22 is mounted on the fixed base 21. The output shaft of the motor 22 is oriented towards the first through hole 414 and connected to the rotor 9 via the coupling 23. The centerline of the motor's output shaft is collinear with the centerline of the first through hole. It should be noted that the centers of the positioning groove 421, the first through hole 414, and the second through hole 422, as well as the centerline of the motor 22's output shaft, are on the same straight line. This allows the stator 8 and rotor 9 to be automatically aligned without adjusting the positions of the mounting body 41 and the motor 22 when disassembling and assembling different models of screw pumps.

[0072] Furthermore, the present invention also provides a method for disassembling and assembling a screw pump, wherein the method is applied to a disassembly and assembly device for a screw pump as described above, and the disassembly and assembly method includes a disassembly method and an assembly method, wherein the disassembly method includes:

[0073] The rotor 9 of the screw pump extends out through the first through hole 414 between the two stop seats 4;

[0074] The stator 8 of the screw pump is clamped between two stop seats 4, and the stop structure 5 on the stop seat 4 axially limits and abuts against the limiting block 81.

[0075] The rotor 9 is connected to the drive assembly 2 at one end extending out of the first through hole 414;

[0076] The control drive assembly 2 drives the rotor 9 to rotate, so that the stator 8 follows the sliding assembly 3 to move in a direction away from the drive assembly 2;

[0077] Assembly methods include:

[0078] The stator 8 is placed between two stop seats 4 and clamped, and the stop structure 5 on the stop seat 4 axially limits and abuts against the limiting block 81.

[0079] Connect rotor 9 to drive assembly 2;

[0080] The control drive assembly 2 drives the rotor 9 to rotate and pushes the sliding assembly 3 to move toward the drive assembly 2 so that the rotor 9 passes through the first through hole 414 and is inserted into the stator 8.

[0081] More specifically, the steps for disassembling the screw pump using the aforementioned screw pump disassembly and assembly equipment are as follows: First, extend the screw pump rotor 9 through the first through hole 414 between the two stop seats 4, and align the limiting block 81 on the stator 8 with the limiting space formed by the first stop block 51 and the second stop block 52 on the stop seat 4; then, move the two sliding plates 32 respectively, so that both ends of the stator 8 are inserted into the positioning grooves 421 of the two stop seats 4, and the limiting blocks 81 at both ends of the stator 8 are inserted into the corresponding limiting spaces, and the two sliding plates are connected by the connecting assembly 6. The plate 32 is connected so that the two stop seats 4 clamp the stator 8 at both ends axially, and the stop structure 5 limits the axial rotation direction of the stator 8; then the sliding assembly 3 is pushed to move towards the drive assembly 2 until the rotor 9 and the drive assembly 2 can be connected; then the lifting frame 12 drives the mounting plate 13 to descend so that the stator 8 is lower than the rotor 9; finally, the drive assembly 2 is controlled to drive the rotor 9 to rotate so that the stator 8 follows the sliding assembly 3 to move away from the drive assembly 2, thereby separating the stator 8 and the rotor 9.

[0082] Furthermore, the assembly steps of the screw pump using the aforementioned screw pump disassembly and assembly equipment can be as follows: First, insert both ends of the stator 8 into the positioning grooves 421 of the two stop seats 4 one by one to abut against the bottom of the grooves, and insert the limiting blocks 81 at both ends of the stator 8 into the corresponding limiting spaces; then connect the two sliding plates 32 through the connecting assembly 6 so that the stator 8 is clamped between the two stop seats 4; then connect the drive assembly 2 to the rotor 9; then use the lifting frame 12 to drive the mounting plate 13 to rise so that the stator 8 is higher than the rotor 9; finally, the drive assembly 2 drives the rotor 9 to rotate so that the stator 8 moves toward the drive assembly 2 along with the sliding assembly 3, thereby assembling the stator 8 and the rotor 9.

[0083] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A disassembly and assembly device for a screw pump, characterized in that, The disassembly and assembly equipment for the screw pump includes: Mounting bracket (1); A drive assembly (2) is mounted on the mounting bracket (1) and is used to connect to the rotor (9) of the screw pump; The sliding component (3) is movably mounted on the mounting bracket (1) and can move toward or away from the drive component (2); The positioning assembly includes a stop structure (5) and two stop seats (4). The two stop seats (4) are arranged at intervals on the sliding assembly (3) and are used to clamp the stator (8) from both ends of the stator (8) of the screw pump. The stop seat (4) located near the drive assembly (2) has a first through hole (414) for the rotor (9) to pass through. The stop seat (4) is also provided with the stop structure (5). The stop structure (5) is used to abut against the limiting block (81) on the periphery of the stator (8) to limit the axial rotation of the stator (8). The mounting frame (1) includes a frame body (11), a lifting frame (12), and a mounting plate (13). The lifting frame (12) is mounted on the frame body (11). One end of the mounting plate (13) is hinged to the frame body (11), and the other end of the mounting plate (13) is mounted on the lifting frame (12). The sliding assembly (3) and the driving assembly (2) are respectively located at both ends of the mounting plate (13). The lifting frame (12) is configured as follows: In the event that disassembly is required, the mounting plate (13) is controlled to move up and down so that the sliding component (3) is lower than the driving component (2). When assembly is required, the mounting plate (13) is controlled to move up and down so that the sliding component (3) is higher than the driving component (2). The stop seat (4) includes a seat body (41) disposed on the sliding assembly (3) and a positioning ring (42) detachably disposed on the seat body (41). The positioning ring (42) has a positioning groove (421) on the side away from the seat body (41) and a first through hole (414) at the bottom of the positioning groove (421). The seat body (41) has a second through hole (422) corresponding to the first through hole (414). The stop structure (5) is disposed on the seat body (41) and located outside the positioning ring (42). The positioning grooves (421) of the two stop seats (4) are used for the two ends of the stator (8) to be inserted and abutted one by one, so as to clamp the stator (8) between the two stop seats (4). The sliding assembly (3) includes a slide rail (31) disposed on the mounting bracket (1) and two sliding plates (32) movably disposed on the slide rail (31). Two stop seats (4) are disposed on the two sliding plates (32) in a corresponding manner. The screw pump disassembly and assembly equipment also includes a connecting assembly (6) for detachably connecting the two sliding plates (32). The connection length of the connecting assembly (6) is adjustable.

2. The disassembly and assembly equipment for the screw pump according to claim 1, characterized in that, The positioning ring (42) is provided with at least two positioning holes (423) spaced apart around the positioning groove (421), and the seat body (41) is provided with at least two positioning posts (416) around the second through hole (422). The at least two positioning posts (416) are correspondingly inserted into the at least two positioning holes (423) of the positioning ring (42).

3. The disassembly and assembly equipment for the screw pump according to claim 1, characterized in that, The stop structure (5) includes four first stop blocks (51), two of which are disposed on both sides of the limiting block (81) on the first side of the stator (8), and the other two are disposed on both sides of the limiting block (81) on the second side of the stator (8).

4. The disassembly and assembly equipment for a screw pump according to any one of claims 1 to 3, characterized in that, The connecting assembly (6) includes a connecting screw (62) and two connecting seats (61). The two connecting seats (61) are respectively disposed on the two sliding plates (32) and are detachably connected by the connecting screw (62).

5. The disassembly and assembly equipment for a screw pump according to any one of claims 1 to 3, characterized in that, The slide rail (31) is located at one end of the mounting plate (13) near the lifting frame (12), and the drive assembly (2) is located at one end of the mounting plate (13) away from the lifting frame (12).

6. The disassembly and assembly equipment for the screw pump according to claim 5, characterized in that, The disassembly and assembly equipment for the screw pump also includes a counterweight (14) mounted on the sliding plate (32).

7. A method for disassembling and assembling a screw pump, characterized in that, The disassembly and assembly equipment for the screw pump according to any one of claims 1 to 6, wherein the disassembly and assembly method includes a disassembly method and an assembly method, the disassembly method including: The rotor (9) of the screw pump extends out through the first through hole (414) between the two stop seats (4); The stator (8) of the screw pump is clamped between the two stop seats (4), and the stop structure (5) on the stop seat (4) axially limits and abuts the limiting block (81). The rotor (9) is connected to the drive assembly (2) at one end extending out of the first through hole (414); Control the lifting frame (12) to drive the mounting plate (13) to move up and down so that the sliding component (3) is lower than the driving component (2); Control the drive assembly (2) to drive the rotor (9) to rotate, so that the stator (8) follows the sliding assembly (3) to move in a direction away from the drive assembly (2); The assembly method includes: The stator (8) is clamped between the two stop seats (4), and the stop structure (5) on the stop seat (4) axially limits and abuts the limiting block (81). Connect the rotor (9) to the drive assembly (2); Control the lifting frame (12) to drive the mounting plate (13) to move up and down so that the sliding component (3) is higher than the driving component (2). The drive assembly (2) is controlled to drive the rotor (9) to rotate and push the sliding assembly (3) to move toward the drive assembly (2) so that the rotor (9) passes through the first through hole (414) and is inserted into the stator (8).

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