Centrifugal pump disassembly and assembly tools

Abstract

The present invention provides a centrifugal pump disassembly and assembly tool, which includes a bearing, a connecting mechanism and a separating mechanism; the connecting mechanism is arranged on the bearing, and the connecting mechanism is used to connect and fix the pump body of the centrifugal pump; the separating mechanism is movably arranged on the bearing, and the separating mechanism is used to drive the pump assembly of the centrifugal pump to move along the direction from the pump body to the connecting mechanism, so as to separate the pump assembly from the pump body, and the relative position of the separating mechanism and the bearing is adjustable. In the centrifugal pump disassembly and assembly tool of this embodiment, by setting the connecting mechanism to cooperate with the bearing and the centrifugal pump, the centrifugal pump can be fixed to improve the disassembly stability, and the centrifugal pump can be conveniently disassembled by the separating mechanism arranged on the bearing, the structure is simple, and the use effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal pumps, and in particular to a centrifugal pump disassembly and assembly tool. Background Art

[0002] A pump is a general mechanical device that can convert the mechanical energy of the prime mover into kinetic energy and pressure to drive the fluid being transported, and is widely used in production and construction. When a single-stage horizontal centrifugal pump is in poor condition or fails during the construction and operation process, it needs to be disassembled and repaired to ensure the normal operation of the pump and avoid safety accidents. The disassembly and assembly quality of single-stage horizontal centrifugal pump products directly affects the quality of the entire pump product.

[0003] At present, most of the single-stage horizontal centrifugal pumps in the domestic and foreign markets are still disassembled and assembled manually. The specific disassembly and assembly method is to first tie the rope on the hand chain hoist to the bearing body, pull the hand chain hoist to straighten the rope so that it begins to bear force, and then manually pull the pump assembly out of the pump body, and finally disassemble and replace the parts; during the disassembly process, the pump assembly is often inevitably swung during the process of pulling out, and the adjustment process is particularly time-consuming and labor-intensive, and it is easy to cause damage to the surface of the bearing cap and the pump shaft thread, seriously affecting the stable operation of the pump.

[0004] Therefore, it is necessary to make improvements to the above problems in order to change the current situation. Summary of the invention

[0005] The invention provides a centrifugal pump disassembly and assembly tool, which is used to solve the problem that the components are easily damaged due to the unavoidable swing during the disassembly of the traditional pump.

[0006] The present invention provides a centrifugal pump disassembly and assembly tool, comprising:

[0007] bearing member;

[0008] A connecting mechanism, provided on the bearing member, the connecting mechanism being used to connect and fix the pump body of the centrifugal pump; and

[0009] A separation mechanism is movably disposed on the carrier, and is used to drive the pump assembly of the centrifugal pump to move along the direction from the pump body to the connecting mechanism to separate the pump assembly from the pump body, and the relative position of the separation mechanism and the carrier is adjustable.

[0010] As a further optional scheme of the present application, the connecting mechanism includes a connecting rod and a connecting member, one end of the connecting rod is connected to the bearing member, and the other end of the connecting rod is detachably connected to the pump body; the connecting member is detachably connected to the connecting rod and is located between the bearing member and the pump body, and the connecting member is detachably connected to the flange of the centrifugal pump.

[0011] As a further optional solution of the present application, a plurality of connecting rods are provided, the plurality of connecting rods are parallel to each other and spaced apart, and the connecting member is detachably connected to at least one of the connecting rods; the connecting rod is used to guide the pump assembly.

[0012] As a further optional scheme of the present application, the separation mechanism includes a pulling claw, a mounting member and a guide shaft, the pulling claw is connected to the mounting member, the mounting member is movably connected to the guide shaft, the guide shaft is movably connected to the supporting member and is used to drive the mounting member to move; the pulling claw is used to separate the pump assembly and the pump body, wherein a plurality of the pulling claws are provided, and the plurality of the pulling claws are evenly arranged along the circumferential direction of the guide shaft.

[0013] As a further optional scheme of the present application, the supporting member includes a supporting platform and a connecting frame arranged on the supporting platform, the connecting mechanism is movably connected to the connecting frame, and the separation mechanism is detachably connected to the supporting platform; the separation mechanism also includes a balancing member, which is respectively connected to the mounting member and the supporting platform, and the relative position of the balancing member and the supporting platform is adjustable.

[0014] As a further optional solution of the present application, the centrifugal pump disassembly and assembly tool also includes a lifting mechanism, which is connected to the bearing member and drives the bearing member to rise and fall in a vertical direction.

[0015] As a further optional scheme of the present application, the lifting mechanism includes a lifting member, a supporting assembly and an operating assembly, one end of the lifting member abuts against the bearing member, the supporting assembly is respectively dynamically connected to the lifting member and the operating assembly and is used to drive the lifting member to move along its axial direction, and the operating assembly is used to provide power to the supporting assembly.

[0016] As a further optional scheme of the present application, the operating component includes a drive shaft, and the drive shaft is provided with at least one circle of helical teeth; the supporting component includes a worm gear and a support foot, the worm gear is coaxially arranged with the support foot and is located at one end of the support foot, the worm wheel is meshed with the drive shaft through the helical teeth, and the lifting member is passed through the worm wheel and is threadedly connected to the worm wheel.

[0017] As a further optional solution of the present application, the worm gear is rotationally matched with the support foot.

[0018] As a further optional solution of the present application, the lifting mechanism also includes at least one support member and a base plate, one end of the support assembly away from the lifting member abuts against the base plate, and the support member is connected between the bearing member and the base plate; when the number of the support members is multiple, the multiple support members are evenly arranged between the bearing platform and the base plate.

[0019] Implementing the embodiments of the present invention has the following beneficial effects:

[0020] When using the centrifugal pump disassembly and assembly tool of this embodiment, first connect the pump body of the centrifugal pump to the connecting mechanism, so that the bearing member and the pump body are fixed through the connecting mechanism. The connecting mechanism can also guide the movement of the pump body during disassembly to prevent it from swinging. The separation mechanism is adjusted to ensure that it is concentric with the pump assembly. After the pump body is fixed by the connecting mechanism, the pump assembly can be pulled out of the centrifugal pump by operating the separation mechanism. The operation is simple and the use effect is good.

[0021] In the centrifugal pump disassembly and assembly tool of this embodiment, the centrifugal pump can be fixed by setting a connecting mechanism in cooperation with the carrier and the centrifugal pump, thereby improving the disassembly stability, and the centrifugal pump can be conveniently disassembled by using a separation mechanism set on the carrier. The structure is simple and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] in:

[0024] Figure 1 is an axial side view of a centrifugal pump disassembly and assembly tool according to an embodiment of the present invention;

[0025] Figure 2 is a side view of a centrifugal pump disassembly and assembly tool according to an embodiment of the present invention;

[0026] Figure 3 is a top view of a separation mechanism in an embodiment of the present invention;

[0027] Figure 4 is a structural schematic diagram of a connecting mechanism in an embodiment of the present invention;

[0028] Figure 5 is a structural schematic diagram of a lifting mechanism in an embodiment of the present invention;

[0029] In the figure:

[0030] 10. Centrifugal pump disassembly and assembly tools; 100. Carrying parts; 110. Carrying platform; 120. Connecting frame; 130. Washer; 140. Cushion; 150. Separation mounting frame; 200. Connecting mechanism; 210. Connecting rod; 220. Connecting parts; 300. Separation mechanism; 310. Mounting parts; 320. Pull claws; 330. Guide shaft; 340. Balance parts; 350. Handle; 400. Lifting mechanism; 410. Lifting parts; 420. Support assembly; 421. Worm gear; 422. Support feet; 430. Operating assembly; 431. Drive shaft; 4311. Helical teeth; 432. Rocker arm; 433. Bearing seat; 434. Lifting mounting frame; 440. Support parts; 450. Bottom plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 As shown, an embodiment of the present invention provides a centrifugal pump disassembly and assembly tool 10, which includes a carrier 100, a connecting mechanism 200 and a separating mechanism 300; the carrier 100 is used as an installation carrier for fixedly installing the connecting mechanism 200 and the separating mechanism 300, the connecting mechanism 200 is arranged on the carrier 100, and the connecting mechanism 200 is used to connect and fix the pump body of the centrifugal pump; the separating mechanism 300 can be movably arranged on the carrier 100, and the separating mechanism 300 is used to drive the pump assembly of the centrifugal pump to move along the direction from the pump body to the connecting mechanism 200, so as to separate the pump assembly from the pump body, and the relative position of the separating mechanism 300 and the carrier 100 is adjustable.

[0033] When using the centrifugal pump disassembly and assembly tool 10 of this embodiment, first connect the pump body of the centrifugal pump to the connecting mechanism 200, so that the supporting member 100 and the pump body are fixed by the connecting mechanism 200. The connecting mechanism 200 can also guide the movement of the pump body during the disassembly process to prevent it from swinging. Adjust the separation mechanism 300 to ensure that it is concentric with the pump assembly. After the connecting mechanism 200 fixes the pump body, the pump assembly can be pulled out of the centrifugal pump by operating the separation mechanism 300. The operation is simple and the use effect is good.

[0034] In the centrifugal pump disassembly and assembly tool 10 of this embodiment, the centrifugal pump can be fixed by setting the connection mechanism 200 in cooperation with the carrier 100 and the centrifugal pump to improve the disassembly stability, and the centrifugal pump can be conveniently disassembled by the separation mechanism 300 set on the carrier 100. The structure is simple and the use effect is good.

[0035] Specifically, see Figure 2 and Figure 4 As shown, the connecting mechanism 200 includes a connecting rod 210 and a connecting member 220, one end of the connecting rod 210 is connected to the supporting member 100, and the other end of the connecting rod 210 is detachably connected to the pump body; the connecting member 220 is detachably connected to the connecting rod 210 and is located between the supporting member 100 and the pump body, and the connecting member 220 is detachably connected to the flange of the centrifugal pump.

[0036] In this embodiment, one end of the connecting rod 210 is rotatably connected to the supporting member 100, and the other end of the connecting rod 210 is provided with an external thread, and is threadedly connected to the threaded hole on the pump body for connecting the end cover. Thereafter, the pump assembly can be moved along the connecting rod 210 to the middle position of the connecting rod 210 by operating the separation mechanism 300, and the operator can then disassemble and reinstall the pump assembly; the connecting member 220 is connected to the flange of the centrifugal pump so that the pump assembly can remain in a horizontal state, thereby facilitating the separation mechanism 300 to pull out the pump assembly, thereby preventing the pump assembly from swinging and colliding with other components, and having a good use effect.

[0037] Furthermore, a plurality of connecting rods 210 are provided, and the plurality of connecting rods 210 are parallel to each other and spaced apart, and the connecting member 220 is detachably connected to at least one connecting rod 210; the connecting rod 210 is used to guide the pump assembly.

[0038] See also Figure 1 As shown, in this embodiment, the number of connecting rods 210 is three, and the connecting line of the three connecting rods 210 is roughly triangular. After being connected to the centrifugal pump, it can provide stable support, connection, and fixing between the bearing member 100 and the centrifugal pump; in some embodiments, the connecting member 220 can slide with the connecting rod 210 and can support it during the movement of the pump assembly so that the axis of the pump assembly is in a horizontal state to ensure its movement stability. In other embodiments, the number of connecting rods 210 can also be two or more than three, which is not limited here.

[0039] Furthermore, the bearing member 100 further comprises a washer 130 and a cushion block 140, wherein the washer 130 is detachably connected to the bearing member 100 and the cushion block 140, respectively, and the cushion block 140 is used to carry the connecting rod 210. Specifically, the washer 130 and the cushion block 140 may also be provided in multiple groups, and correspond to the connecting rod 210 one by one.

[0040] With this arrangement, the shims 130 and the spacer blocks 140 can support the connecting rod 210. By selecting shims 130 and spacer blocks 140 of different sizes, the centrifugal pump disassembly and assembly tool 10 of this embodiment can be applied to centrifugal pumps of different models, with convenient disassembly and assembly and good use effects. Specifically, the shims 130 can be connected to the spacer blocks 140 and / or the carrier 100 by detachable connection means such as screw connection, snap connection, magnetic attraction connection, plug connection, etc.

[0041] Refer to Figure 2 and Figure 3 As shown, in this embodiment, the separation mechanism 300 includes a claw 320, a mounting member 310, and a guide shaft 330. The claw 320 is connected to the mounting member 310. The mounting member 310 is movably connected to the guide shaft 330. The guide shaft 330 is movably connected to the carrier 100 and is used to drive the mounting member 310 to move; the claw 320 is used to separate the pump assembly and the pump body.

[0042] In this embodiment, the mounting member 310 and the guide shaft 330 are in threaded cooperation, and the guide shaft 330 and the carrier 100 are in rotational cooperation; when using the separation mechanism 300 of this embodiment, first, the claw 320 is abutted against the side of the pump assembly away from the carrier 100, and then the guide shaft 330 is rotated to drive the mounting member 310 to move toward the carrier 100, and further drive the claw 320 to move to pull the pump assembly out of the centrifugal pump outward.

[0043] Furthermore, a plurality of claws 320 are provided, and the plurality of claws 320 are uniformly arranged along the circumferential direction of the guide shaft 330.

[0044] In this embodiment, the claw 320 can be set in a "冂" shape, and after contacting the pump assembly, at least part of the pump assembly is located inside the claw 320. Through the cooperation of the claws 320 arranged on both sides of the axis of the guide shaft 330, a stable supporting force can be provided in the circumferential direction of the pump assembly, thereby improving the moving stability of the pump assembly.

[0045] Specifically, refer to Figure 1 and Figure 2 As shown, the separation mechanism 300 further includes a handle 350. The handle 350 is connected to the end of the guide shaft 330 away from the mounting member 310; with this arrangement, the operator can drive the guide shaft 330 to rotate by moving the handle 350, thereby realizing the function of driving the claw 320 to move. In some embodiments, the guide shaft 330 can also be connected to a driving motor and drive the mounting member 310 to move through the driving motor.

[0046] Specifically, as Figure 2As shown, the carrier 100 includes a carrier platform 110 and a connecting frame 120 arranged on the carrier platform 110, the connecting mechanism 200 is movably connected to the connecting frame 120, and the separation mechanism 300 is detachably connected to the carrier platform 110; the separation mechanism 300 also includes a balancing member 340, which is respectively connected to the mounting member 310 and the carrier platform 110, and the relative position of the balancing member 340 and the carrier platform 110 is adjustable.

[0047] When using the centrifugal pump disassembly and assembly tool 10 of this embodiment, during the process of the guide shaft 330 rotating and driving the mounting member 310 to move, the mounting member 310 is supported by the provided balancing member 340, thereby preventing the mounting member 310 from deflecting, thereby ensuring the stability of the mounting member 310 when moving along the axis of the guide shaft 330, and achieving good use effect.

[0048] Specifically, see Figure 2 and Figure 3 As shown, the carrier 100 further includes a separate mounting frame 150 , which is detachably connected to the carrier platform 110 , and a top end of the guide shaft 330 abuts against one side of the separate mounting frame 150 .

[0049] Further, see Figure 2 and Figure 5 As shown, the centrifugal pump disassembly and assembly tool 10 further includes a lifting mechanism 400 , which is connected to the bearing member 100 and drives the bearing member 100 to be lifted and lowered in a vertical direction.

[0050] When using the centrifugal pump disassembly and assembly tool 10 of this embodiment, the lifting mechanism 400 can be adjusted according to the size of the centrifugal pump to lift and lower the carrier 100, so that the axis of the guide shaft 330 can be aligned with the central axis of the pump assembly, so that the centrifugal pump disassembly and assembly tool 10 can be applied to centrifugal pumps of different sizes, thereby improving the applicability of the centrifugal pump disassembly and assembly tool 10.

[0051] Specifically, the lifting mechanism 400 includes a lifting member 410, a supporting assembly 420 and an operating assembly 430. One end of the lifting member 410 abuts against the carrier 100. The supporting assembly 420 is respectively dynamically connected to the lifting member 410 and the operating assembly 430 and is used to drive the lifting member 410 to move along its axial direction. The operating assembly 430 is used to provide power for the supporting assembly 420.

[0052] See also Figure 2 and Figure 5As shown, in this embodiment, the operating component 430 includes a driving shaft 431, and the driving shaft 431 is provided with at least one circle of helical teeth 4311; the supporting component 420 includes a worm gear 421 and a support foot 422, the worm gear 421 is coaxially arranged with the support foot 422, and is located at one end of the support foot 422, the worm gear 421 is meshed with the driving shaft 431 through the helical teeth 4311, and the lifting member 410 is penetrated into the worm gear 421 and is threadedly connected to the worm gear 421.

[0053] When using the centrifugal pump disassembly and assembly tool 10 of this embodiment, power is input into the drive shaft 431 to drive the helical teeth 4311 to rotate, which drives the worm gear 421 to rotate through engagement. After the worm gear 421 rotates, it drives the lifting member 410 to move relative to the support leg 422 through a threaded connection, thereby driving the lifting mechanism 400 to rise or fall. By arranging the helical teeth 4311 to cooperate with the worm gear 421, the lifting mechanism 400 can have a compact structure, reducing the space occupied by the centrifugal pump disassembly and assembly tool 10, and facilitating installation and use.

[0054] In other embodiments, the support assembly 420 may also be provided with a cylinder, and the lifting member 410 is at least partially disposed in the cylinder. The lifting function of driving the lifting member 410 to rise and fall may also be achieved by connecting to an external air source, which will not be elaborated here.

[0055] Specifically, see Figure 2 and Figure 5 As shown, the operating component 430 also includes a rocker arm 432, a bearing seat 433 and a lifting mounting frame 434. The drive shaft 431 is rotatably connected to the bearing seat 433. The lifting mounting frame 434 is detachably connected to the support foot 422. The rocker arm 432 is connected to the end of the drive shaft 431 and is used to drive the drive shaft 431 to rotate. By arranging the bearing seat 433 to cooperate with the drive shaft 431, the rotation stability of the drive shaft 431 can be improved, and the structure is simple and easy to use.

[0056] In other embodiments, the driving shaft 431 may also be connected to an external driving motor, and the driving motor may input a driving force to the driving shaft 431 to drive the driving shaft 431 to rotate, thereby realizing the lifting function of the lifting mechanism 400 .

[0057] In one embodiment, the worm gear 421 is rotatably matched with the support leg 422 .

[0058] When the lifting mechanism 400 drives the supporting member 100 to lift and lower, the support foot 422 remains relatively fixed and only the worm gear 421 rotates. In other embodiments, the support foot 422 and the worm gear 421 can also be connected by welding, detachable connection, snap-on connection, etc. When the operating component 430 drives the worm gear 421 to rotate, the support foot 422 rotates with the rotation of the worm gear 421.

[0059] Furthermore, the lifting mechanism 400 also includes at least one support member 440 and a base plate 450, and one end of the support assembly 420 away from the lifting member 410 abuts against the base plate 450, and the support member 440 is connected between the supporting member 100 and the base plate 450; when the number of the support members 440 is multiple, the multiple support members 440 are evenly arranged between the supporting platform 110 and the base plate 450.

[0060] The support member 440 can be provided to support the platform 110 and further improve the stability of the movement of the platform 110; when multiple support members 440 are provided, a more stable support can be provided to the platform 110, which will not be described in detail here. Specifically, the support member 440 can be a hydraulic rod, and when the platform 110 moves relative to the bottom plate 450, the hydraulic rod can be extended and retracted to provide a stable support force for the platform 110.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A centrifugal pump disassembly and assembly tool, characterized in that: include: bearing member; A connecting mechanism, provided on the bearing member, and used for connecting and fixing the pump body of the centrifugal pump; as well as a separation mechanism, movably disposed on the bearing member, the separation mechanism being used to drive the pump assembly of the centrifugal pump to move along the direction from the pump body to the connecting mechanism so as to separate the pump assembly from the pump body, and the relative position of the separation mechanism and the bearing member being adjustable; The connecting mechanism comprises a connecting rod and a connecting piece, one end of the connecting rod is connected to the bearing member, and the other end of the connecting rod is detachably connected to the pump body; the connecting piece is detachably connected to the connecting rod and is located between the bearing member and the pump body, and the connecting piece is detachably connected to the flange of the centrifugal pump; The separation mechanism comprises a pulling claw, a mounting member and a guide shaft, wherein the pulling claw is connected to the mounting member, the mounting member is movably connected to the guide shaft, the guide shaft is movably connected to the bearing member and is used to drive the mounting member to move; the pulling claw is used to separate the pump assembly and the pump body, wherein a plurality of the pulling claws are provided, and the plurality of the pulling claws are evenly arranged along the circumferential direction of the guide shaft; The supporting member includes a supporting platform and a connecting frame arranged on the supporting platform, the connecting mechanism is movably connected to the connecting frame, and the separating mechanism is detachably connected to the supporting platform; the separating mechanism also includes a balancing member, which is respectively connected to the mounting member and the supporting platform, and the relative position of the balancing member and the supporting platform is adjustable.

2. The centrifugal pump disassembly and assembly tool according to claim 1, characterized in that: There are multiple connecting rods, which are parallel to each other and spaced apart. The connecting piece is detachably connected to at least one of the connecting rods. The connecting rod is used to guide the pump assembly.

3. The centrifugal pump disassembly and assembly tool according to any one of claims 1 to 2, characterized in that: The centrifugal pump disassembly and assembly tool also includes a lifting mechanism, which is connected to the bearing member and drives the bearing member to rise and fall in a vertical direction.

4. The centrifugal pump disassembly and assembly tool according to claim 3, characterized in that: The lifting mechanism includes a lifting member, a supporting assembly and an operating assembly. One end of the lifting member abuts against the bearing member. The supporting assembly is respectively dynamically connected to the lifting member and the operating assembly and is used to drive the lifting member to move along its axial direction. The operating assembly is used to provide power to the supporting assembly.

5. The centrifugal pump disassembly and assembly tool according to claim 4, characterized in that: The operating component includes a drive shaft, and the drive shaft is provided with at least one circle of spiral teeth; the supporting component includes a worm gear and a support foot, the worm gear is coaxially arranged with the support foot and is located at one end of the support foot, the worm gear is meshed with the drive shaft through the spiral teeth, and the lifting member is passed through the worm gear and is threadedly connected to the worm gear.

6. The centrifugal pump disassembly and assembly tool according to claim 5, characterized in that: The worm gear is rotationally matched with the support foot.

7. The centrifugal pump disassembly and assembly tool according to claim 4, characterized in that: The lifting mechanism also includes at least one support member and a base plate, one end of the support assembly away from the lifting member abuts against the base plate, and the support member is connected between the bearing member and the base plate; when the number of the support members is multiple, the multiple support members are evenly arranged between the bearing platform and the base plate.

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