Screw pump disassembling and assembling tool

Abstract

The utility model discloses a screw pump disassembling and assembling tool, which belongs to the technical field of screw pumps and comprises a screw pump, the screw pump comprises a pump body, a rear cover is arranged on the lower end face of the pump body, a lower bearing cavity cover is arranged on the lower end face of the rear cover, a bearing frame is arranged on the rear cover and comprises a supporting part, and an upper end plate is arranged on the upper end face of the supporting part. A lower end plate is arranged on the lower end face of the supporting part, the upper end face of the upper end plate is attached to the lower end face of the flange position of the rear cover, and the pump body, the rear cover and the upper end plate are connected through fasteners. The upper end plate is provided with a through hole for the rear cover and the lower bearing cavity cover to penetrate through, a containing cavity for containing the rear cover and the lower bearing cavity cover is formed in the supporting part, and the rear cover and the lower bearing cavity cover are arranged in the containing cavity through the through hole. According to the utility model, the assembly process is more stable and accurate, the installation precision of the pump is improved, the risk of accidental injury caused by inclination or shaking of the pump in the assembly process is reduced, and the safety of the pump in the assembly process is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screw pump technical field especially relates to a screw pump dismounting tool. BACKGROUND

[0002] With the rapid development of the times and the progress of science and technology, the performance and precision requirements of equipment in various industries are becoming higher and higher. In the manufacturing and maintenance process of pump products, more and more attention is paid to improving the machining precision and assembly precision of the pump. If the assembly precision does not meet the standard, even if all the pump components are qualified, the final assembly may not meet the standard requirements. A slight error in assembly precision can greatly affect the sensitivity and accuracy of the pump, and even cause the pump to fail.

[0003] Hoisting assembly technology can ensure high-precision installation of large-volume screw pumps. Through accurate measurement and positioning technology, the position and angle of the screw pump during installation can be ensured to be accurate. In addition, through careful design of the hoisting scheme and professional hoisting operation, the deformation of the screw caused by its own weight during assembly can be minimized, thereby significantly improving the assembly precision. This high-precision installation not only improves the operating efficiency of the screw pump, but also ensures its long-term stable operation, providing reliable protection for industrial production.

[0004] However, since the horizontal pump rarely considers the working conditions of pump hoisting and assembly, the rear cover and lower bearing gland are designed as spherical, which makes it impossible to smoothly hoist the screw into the bushing during assembly, affecting the assembly effect and efficiency. SUMMARY

[0005] To solve the problems in the prior art, the utility model provides a screw pump dismounting tool, which can make the assembly process more stable and accurate, improve the installation precision of the pump, and reduce the risk of accidental injury caused by the inclination or shaking of the pump during assembly, thereby improving the safety of the pump during assembly.

[0006] The utility model is realized in this way, a screw pump dismounting tool, including screw pump, the screw pump includes pump body, the lower end surface of pump body is provided with rear cover, the lower end surface of rear cover is provided with lower bearing cavity cover, be provided with the support frame on the rear cover, the support frame includes support part, the upper end surface of support part is provided with upper end plate, the lower end surface of support part is provided with lower end plate, the upper end surface of upper end plate and the lower end surface of rear cover flange position are inlaid, the pump body, rear cover and upper end plate are connected through fastener between them;

[0007] The upper end plate is provided with a through hole for the rear cover and the lower bearing cavity cover to pass through, and the support part is provided with a containing cavity for containing the rear cover and the lower bearing cavity cover, and the rear cover and the lower bearing cavity cover are placed in the containing cavity through the through hole.

[0008] Further, the outer periphery of the support part is provided with a rib plate, the upper end surface of the rib plate is connected with the lower end surface of the upper end plate, and the lower end surface of the rib plate is connected with the upper end surface of the lower end plate. The rib plate strengthens the strength of the tool, prevents the support part from being bent and damaged due to excessive weight of the pump, and lowers the gravity center to make the pump more stable.

[0009] Further, the upper end plate is provided with a threaded hole and a light hole relative to the flange position of the rear cover, a first fastener is arranged in the threaded hole, and a second fastener is arranged in the light hole. The first fastener and the second fastener tightly connect the pump body, the rear cover and the upper end plate together through the threaded hole and the light hole, form a firm connection structure, and ensure the stability and reliability of the disassembly tool.

[0010] Further, the support part is provided with a clearance hole relative to the threaded hole and the light hole. The clearance hole can avoid interference with the bolt and nut.

[0011] Further, the threaded hole is provided with four threaded holes, the four threaded holes are equidistantly arranged on the upper end plate along the circumference of the pump body, the light hole is provided with eight light holes, the eight light holes are distributed on the upper end plate along the circumference of the pump body, and each two groups of light holes are arranged between adjacent two threaded holes.

[0012] Further, the depth of the accommodating cavity is greater than the extension length of the rear cover and the lower bearing cavity cover. While ensuring the protection effect of the rear cover and the lower bearing cavity cover, the upper end plate cannot form a surface contact with the rear cover, and the pump is inclined.

[0013] Further, the support part, the upper end plate and the lower end plate are welded into an integrated structure. The support part, the upper end plate and the lower end plate can be tightly connected together to form an integrated structure, which has high rigidity and can withstand large external force and pressure, and the integrated structure is not easy to deform under stress.

[0014] Further, the transverse dimension of the lower end plate is greater than the transverse dimension of the upper end plate.

[0015] The utility model has the advantages and technical effects that: due to the above technical scheme, the assembly process is more stable and accurate, the installation precision of the pump is improved, the risk of accidental injury caused by inclination or shaking of the pump in the assembly process is reduced, and the safety of the pump in the assembly process is improved.

[0016] The pump body, the rear cover and the upper end plate are tightly connected through the fastener, the stability of the whole is further enhanced, the through hole arranged on the upper end plate allows the rear cover and the lower bearing cavity cover to smoothly penetrate and be placed in the accommodating cavity in the support part, the problem that the rear cover and the lower bearing gland are designed as a ball shape and cannot be smoothly hoisted into the bushing in the assembly process is solved, and the stability and safety in the disassembly process are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0018] Fig. 2 is a sectional view of the support frame provided by the embodiment of the present application;

[0019] Fig. 3 is a top view of the support frame provided by the embodiment of the present application.

[0020] In the figure: 1, pump body; 2, rear cover; 3, lower bearing cavity cover; 4, support frame; 4-1, upper end plate; 4-2, support part; 4-3, lower end plate; 4-4, through hole; 4-5, accommodating cavity; 4-6, light hole; 4-7, empty hole; 4-8, threaded hole; 5, first fastener; 6, rib plate; 7, second fastener. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0022] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] As Figs. 1 to 3As shown, the application provides a screw pump dismounting tool, which comprises a screw pump, the screw pump comprises a pump body 1, the lower end surface of the pump body 1 is provided with a rear cover 2, the lower end surface of the rear cover 2 is provided with a lower bearing cavity cover 3, the rear cover 2 is provided with a supporting frame 4, the supporting frame 4 comprises a supporting part 4-2, the upper end surface of the supporting part 4-2 is provided with an upper end plate 4-1, the lower end surface of the supporting part 4-2 is provided with a lower end plate 4-3, the lower end plate 4-3 is in contact with the ground to ensure that the pump is vertically placed stably with the ground and is consistent with the direction of gravity so as to facilitate the high-precision parts such as screw not to be knocked during assembly, improve the assembly precision of the screw, the upper end surface of the upper end plate 4-1 is in close contact with the lower end surface of the flange position of the rear cover 2, the pump body 1, the rear cover 2 and the upper end plate 4-1 are connected through fasteners 5; specifically, the supporting part 4-2, the upper end plate 4-1 and the lower end plate 4-3 are welded into an integral structure. The supporting part 4-2, the upper end plate 4-1 and the lower end plate 4-3 can be tightly connected together to form an integral structure, which has high rigidity and can withstand large external force and pressure, and the integral structure is not easy to deform under stress.

[0024] The upper end plate 4-1 is provided with a through hole 4-4 for the rear cover 2 and the lower bearing cavity cover 3 to pass through, the supporting part 4-2 is provided with a containing cavity 4-5 for containing the rear cover 2 and the lower bearing cavity cover 3, and the rear cover 2 and the lower bearing cavity cover 3 are placed in the containing cavity 4-5 through the through hole 4-4. Specifically, the depth of the containing cavity 4-5 is greater than the length of the rear cover 2 and the lower bearing cavity cover 3. While ensuring the protection effect of the rear cover 2 and the lower bearing cavity cover 3, the upper end plate 4-1 cannot form a surface contact with the rear cover 2, causing the pump to tilt.

[0025] Further, the outer periphery of the supporting part 4-2 is provided with a rib plate 6, the upper end surface of the rib plate 6 is connected with the lower end surface of the upper end plate 4-1, and the lower end surface of the rib plate 6 is connected with the upper end surface of the lower end plate 4-3. The rib plate 6 strengthens the strength of the tool, prevents the supporting part 4-2 from being bent and damaged due to the excessive weight of the pump, and also plays a role in reducing the center of gravity, so that the pump is placed more stably.

[0026] Further, the upper end plate 4-1 is provided with threaded holes 4-8 and light holes 4-6 relative to the flange position of the rear cover 2, the first fastener 5 is arranged in the threaded hole 4-8, and the second fastener 7 is arranged in the light hole 4-6. The first fastener 5 and the second fastener 7 are both bolt and nut assemblies, and a long hexagonal bolt is used in the first fastener, the bolt penetrates the flange position of the pump body 1 and the rear cover 2 in sequence, and is fixed by a nut. The pump body 1, the rear cover 2 and the upper end plate 4-1 are tightly connected together through the threaded holes 4-8 and the light holes 4-6, forming a firm connection structure, which ensures the stability and reliability of the dismounting tool. Preferably, the support part 4-2 relative to the threaded hole 4-8 and the light hole 4-6 is provided with a clearance hole 4-7. The clearance hole 4-7 can avoid interference with the bolt and nut.

[0027] Specifically, the threaded holes 4-8 are provided with four, and the four threaded holes 4-8 are equidistantly arranged on the upper end plate 4-1 along the circumference of the pump body, and the light holes 4-6 are provided with eight, and the eight light holes 4-6 are distributed on the upper end plate 4-1 along the circumference of the pump body, wherein every two groups of light holes 4-6 are arranged between two adjacent threaded holes 4-8.

[0028] In the lifting process, only the pump body 1 of the assembled semi-finished product needs to be placed at a position slightly higher than the upper end plate 4-1 by the lifting equipment, the hole position of the through hole 4-4 of the pump body 1 and the upper end plate 4-1 is aligned by the operator, and the pump body 1 of the assembled semi-finished product is connected with the support frame 4 by using a long screw and a nut, so that the pump body 1 can be stably and vertically placed, and the next lifting operation can be performed.

[0029] Further, the transverse dimension of the lower end plate 4-3 is greater than the transverse dimension of the upper end plate 4-1. The support frame has an anti-overturning capability.

[0030] The utility model has the advantages and technical effects that: due to the above technical scheme, the assembly process is more stable and accurate, the installation precision of the pump is improved, the risk of accidental injury caused by the inclination or shaking of the pump in the assembly process is reduced, and the safety of the pump in the assembly process is improved.

[0031] The pump body 1, the rear cover 2 and the upper end plate 4-1 are tightly connected through the fastener 5, which further enhances the stability of the whole; the through hole 4-4 arranged on the upper end plate 4-1 allows the rear cover 2 and the lower bearing cavity cover 3 to smoothly penetrate and be placed in the accommodating cavity 4-5 in the support part 4-2, effectively solving the problem that the rear cover 2 and the lower bearing gland are designed as a spherical shape and cannot be stably lifted into the bushing during the assembly process, and ensuring the stability and safety during the dismounting process.

[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A screw pump disassembling and assembling tool comprising a screw pump including a pump body, a lower end surface of the pump body being provided with a rear cover, a lower end surface of the rear cover being provided with a lower bearing cavity cover, characterized in that, The back cover is provided with a supporting frame, the supporting frame comprises a supporting part, the upper end surface of the supporting part is provided with an upper end plate, the lower end surface of the supporting part is provided with a lower end plate, the upper end surface of the upper end plate is in close contact with the lower end surface of the back cover flange position, the pump body, the back cover and the upper end plate are connected through fasteners; The upper end plate is provided with a through hole for the back cover and the lower bearing cavity cover, the supporting part is provided with a containing cavity for containing the back cover and the lower bearing cavity cover, and the back cover and the lower bearing cavity cover are arranged in the containing cavity through the through hole.

2. The screw pump dismounting tool according to claim 1, characterized in that The outer periphery of the supporting part is provided with a rib plate, the upper end surface of the rib plate is connected with the lower end surface of the upper end plate, and the lower end surface of the rib plate is connected with the upper end surface of the lower end plate.

3. The screw pump dismounting tool according to claim 1 or 2, characterized in that The upper end plate of the back cover flange position is provided with a threaded hole and a light hole, the first fastener is arranged in the threaded hole, and the second fastener is arranged in the light hole.

4. The screw pump dismounting tool according to claim 3, characterized in that The supporting part of the threaded hole and the light hole is provided with an empty hole.

5. The screw pump dismounting tool according to claim 3, characterized in that The threaded hole is provided with four, the four threaded holes are equidistantly arranged on the upper end plate along the circumference of the pump body, the light hole is provided with eight, the eight light holes are distributed on the upper end plate along the circumference of the pump body, and each two groups of light holes are arranged between adjacent two threaded holes.

6. The screw pump dismounting tool according to claim 1, characterized in that The depth of the containing cavity is greater than the extension length of the back cover and the lower bearing cavity cover.

7. The screw pump dismounting tool according to claim 1, characterized in that The supporting part, the upper end plate and the lower end plate are welded into an integral structure.

8. The screw pump dismounting tool according to claim 1, characterized in that The transverse dimension of the lower end plate is greater than the transverse dimension of the upper end plate.

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