Special equipment for machining inner hole of screw pump

By designing a special equipment for processing in the pump with a transmission structure, the problem of single and cutting accuracy of the existing equipment is solved, and the cutting range of the cutting range is stable and accurate, and the processing efficiency and accuracy are improved.

CN222386369UActive Publication Date: 2025-01-24JIANGXI SHANXU PRECISION CIRCUIT CO LTD
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Patent Information

Application Number
CN202421021763.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-01-24
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The existing screw pump inner hole processing equipment has a single structure and requires repeated disassembly and assembly of tools, which is time-consuming and labor-intensive, and the cutting accuracy is easily affected by measurement errors.

Method used

A special equipment for processing the inner hole of a screw pump is designed, which uses a transmission structure to drive the sleeve plate to swing. The support frame swings with the pin as the axis, and the tool changes the placement angle to achieve stable and accurate adjustment of the cutting range.

Benefits of technology

Through the design of the transmission structure, stable and accurate adjustment of the cutting range of the tool head is achieved, which improves processing efficiency and accuracy and reduces the difficulty of using the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses special equipment for machining an inner hole of a screw pump, which comprises a base, a spindle box fixedly connected to the top of the base, a pump shell clamped in the spindle box and a tool rest slidably connected to the top of the base, an adjusting structure is arranged on the surface of the tool rest, and a transmission structure located on the inner side of the adjusting structure is arranged on the surface of the tool rest. The adjusting structure comprises a support arranged on the left side of the tool rest, the side, away from the tool rest, of the support is movably connected with a supporting frame through a pin shaft, a tool is inserted into the supporting frame, the side, close to the support, of the supporting frame is fixedly connected with a sleeve plate, and the transmission structure can drive the sleeve plate to swing. The sleeve plate is extruded through the transmission structure, the sleeve plate drives the supporting frame to swing with the pin shaft in the support as the axis, the placing angle of a cutter located in the supporting frame is changed, and therefore the effect that the cutting range of a cutter head of the cutter is stably and accurately adjusted is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of inner hole processing of screw pumps, in particular to special equipment for inner hole processing of screw pumps. Background Art

[0002] The screw pump, also known as a screw water pump or Archimedes screw pump, has a screw as its core component. When the screw rotates, its spiral surface cooperates with the thread in the pump casing, so that the screw gradually moves forward in the axial direction. In this process, a negative pressure area is formed in the pump chamber, allowing liquid or gas to enter the pump chamber from the suction end. As the screw rotates, these liquids or gases are enclosed in the cavity formed by the screw and the pump casing, and are pushed toward the discharge end along the axial direction. The pressure at the discharge end is usually higher than that at the suction end, thereby achieving continuous delivery or compression of liquid or gas. The screw pump has the following main characteristics: Stable delivery capacity: Its output flow rate is proportional to the screw speed, and can achieve continuous and stable delivery. Strong self-priming performance: It has advantages when extracting liquids with gas or foam.

[0003] During the processing of screw pumps, cutting processing needs to be performed on the inner hole of the metal shell. However, the structure of the existing screw pump inner hole processing equipment is relatively simple, and the inner hole cutting range is mainly adjusted by adjusting the clamping position of the tool. The tool needs to be disassembled and assembled repeatedly during the cutting process, which is time-consuming and labor-intensive, and the cutting accuracy is easily affected by measurement errors. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a special equipment for processing the inner hole of a screw pump, aiming to solve the problems that the existing equipment for processing the inner hole of a screw pump has a relatively simple structure, and the inner hole cutting range is mainly adjusted by adjusting the clamping position of the tool. The tool needs to be disassembled and assembled repeatedly during the cutting process, which is time-consuming and labor-intensive, and the cutting accuracy is easily affected by measurement errors.

[0006] 2. Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A special device for processing the inner hole of a screw pump comprises a base, a spindle box fixedly connected to the top of the base, a pump housing clamped inside the spindle box, and a tool holder slidably connected to the top of the base, the surface of the tool holder is provided with an adjustment structure, the surface of the tool holder is provided with a transmission structure located inside the adjustment structure, the adjustment structure comprises a bracket arranged on the left side of the tool holder, the bracket is movably connected to a support frame with a side away from the tool holder through a pin shaft, a tool is inserted into the interior of the support frame, and a sleeve plate is fixedly connected to the side of the support frame close to the bracket, and the transmission structure can drive the sleeve plate to swing.

[0009] As a preferred solution of the utility model, the transmission structure includes a connecting frame arranged on the left side of the tool holder, the connecting frame is located on the inner side of the sleeve plate, the interior of the connecting frame is movably connected with a screw rod through a bearing, the surface of the screw rod is threadedly connected with a screw sleeve, the screw sleeve is located on the inner side of the sleeve plate, the top and bottom of the screw sleeve are fixedly connected with a sliding rod, the sliding rod extends from the side away from the screw sleeve to the interior of the sleeve plate, and the sleeve plate is slidably connected to the sliding rod.

[0010] As a preferred solution of the utility model, a rubber sleeve is provided on the surface of the sliding rod, and the rubber sleeve extends to the inside of the sleeve plate from a side away from the screw sleeve. The rubber sleeve is slidably connected to the sleeve plate and is elastic.

[0011] As a preferred solution of the utility model, a guide bar is fixedly connected to the interior of the connection frame, and the guide bar extends to the interior of the screw sleeve from a side away from the connection frame, and the screw sleeve and the guide bar are slidably connected.

[0012] As a preferred solution of the utility model, a bolt is provided on the top of the support frame, and one end of the bolt close to the support frame passes through the support frame and extends to the inside of the support frame. The bolt is threadedly connected to the support frame, and the bottom end of the bolt contacts the surface of the tool.

[0013] As a preferred solution of the utility model, the surface of the tool holder is movably connected to a bearing plate via a bearing, and the connecting frame and the bracket are both fixedly connected to the surface of the bearing plate.

[0014] As a preferred solution of the utility model, the left side of the tool holder is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to an extrusion block, the left side of the tool holder is movably connected to a positioning frame through a pin shaft, the top of the positioning frame contacts the surface of the supporting plate, and the top of the extrusion block contacts the bottom of the positioning frame.

[0015] As a preferred solution of the utility model, a rubber pad is fixedly connected to the top of the positioning frame, and a side of the rubber pad away from the positioning frame is in contact with the surface of the carrying plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model extrude the sleeve plate through the transmission structure, so that the sleeve plate drives the support frame to swing with the pin shaft inside the bracket as the axis, and the tool located inside the support frame changes the placement angle, so as to achieve the effect of stably and accurately adjusting the cutting range of the tool head. By arranging the screw rod, the screw sleeve and the sliding rod, the sleeve plate can be pushed to swing stably, and the swing angle of the sleeve plate can be accurately controlled. By arranging the rubber sleeve, the sliding rod can be protected, and the wear of the sliding rod and the sleeve plate during contact friction can be reduced, and the vibration transmission can be reduced at the same time. By arranging the guide strip, the screw sleeve can be limited to avoid the phenomenon of the screw sleeve tilting during the movement. By arranging the bolt, the user can connect the support frame with the tool to prevent the tool from sliding displacement. By arranging the bearing plate, the user can adjust the placement angle of the tool to meet the processing requirements of different environments. By arranging the electric telescopic rod, the extrusion block and the positioning frame, the adjusted bearing plate can be prevented from rotating and displacing, and the stability of the bearing plate can be improved. By arranging the rubber pad, the positioning effect between the positioning frame and the bearing plate can be improved, and the friction of the positioning frame can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a special device for processing the inner hole of a screw pump according to the utility model;

[0020] Figure 2 This is a partial structural schematic diagram of a special device for processing the inner hole of a screw pump according to the utility model;

[0021] Figure 3 It is a left view schematic diagram of the partial structure of a special device for processing the inner hole of a screw pump according to the utility model;

[0022] Figure 4 The utility model is a schematic top view of the local structure of a special device for processing the inner hole of a screw pump.

[0023] In the figure: 1. base; 2. spindle box; 3. pump housing; 4. tool holder; 5. adjustment structure; 6. transmission structure; 7. bracket; 8. support frame; 9. tool; 10. sleeve; 11. connecting frame; 12. screw; 13. screw sleeve; 14. slide rod; 15. rubber sleeve; 16. guide strip; 17. bolt; 18. bearing plate; 19. electric telescopic rod; 20. extrusion block; 21. positioning frame; 22. rubber pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-4 The present embodiment provides a special device for processing the inner hole of a screw pump, comprising a base 1, a spindle box 2 fixedly connected to the top of the base 1, a pump housing 3 clamped inside the spindle box 2, and a tool holder 4 slidably connected to the top of the base 1. An adjustment structure 5 is provided on the surface of the tool holder 4, and a transmission structure 6 located inside the adjustment structure 5 is provided on the surface of the tool holder 4. The adjustment structure 5 comprises a bracket 7 arranged on the left side of the tool holder 4, and the bracket 7 is movably connected to a support frame 8 with a side away from the tool holder 4 through a pin shaft. A tool 9 is inserted inside the support frame 8, and a sleeve plate 10 is fixedly connected to the side of the support frame 8 close to the bracket 7. The transmission structure 6 can drive the sleeve plate 10 to swing, and the sleeve plate 10 is squeezed by the transmission structure 6, so that the sleeve plate 10 drives the support frame 8 to swing with the pin shaft inside the bracket 7 as the axis, and the tool 9 located inside the support frame 8 changes its placement angle, thereby achieving the effect of stably and accurately adjusting the cutting range of the tool head of the tool 9.

[0027] In this embodiment, if Figure 2 As shown, the transmission structure 6 includes a connecting frame 11 arranged on the left side of the tool holder 4, the connecting frame 11 is located on the inner side of the sleeve 10, the interior of the connecting frame 11 is movably connected with a screw rod 12 through a bearing, the surface of the screw rod 12 is threadedly connected with a screw sleeve 13, the screw sleeve 13 is located on the inner side of the sleeve 10, the top and bottom of the screw sleeve 13 are fixedly connected with a slide rod 14, the slide rod 14 extends from the side of the screw sleeve 13 to the inside of the sleeve 10, the sleeve 10 is slidably connected with the slide rod 14, and by arranging the screw rod 12, the screw sleeve 13 and the slide rod 14, the sleeve 10 can be pushed to swing stably, and the swing angle of the sleeve 10 can be accurately controlled.

[0028] In this embodiment, if Figure 2 As shown, a rubber sleeve 15 is provided on the surface of the slide rod 14, and the rubber sleeve 15 extends to the inside of the sleeve plate 10 from the side away from the screw sleeve 13. The rubber sleeve 15 is slidably connected to the sleeve plate 10, and the rubber sleeve 15 is elastic. By providing the rubber sleeve 15, the slide rod 14 can be protected, and the wear of the slide rod 14 and the sleeve plate 10 during contact and friction can be reduced, and the vibration transmission can be reduced.

[0029] In this embodiment, if Figure 4As shown, a guide bar 16 is fixedly connected to the inside of the connecting frame 11, and the guide bar 16 extends to the inside of the screw sleeve 13 away from the side of the connecting frame 11. The screw sleeve 13 and the guide bar 16 are slidably connected. By setting the guide bar 16, the screw sleeve 13 can be limited to avoid the screw sleeve 13 from tilting during movement.

[0030] In this embodiment, if Figure 2 As shown, a bolt 17 is provided on the top of the support frame 8, and one end of the bolt 17 close to the support frame 8 passes through the support frame 8 and extends to the inside of the support frame 8. The bolt 17 is threadedly connected to the support frame 8, and the bottom end of the bolt 17 contacts the surface of the tool 9. By providing the bolt 17, it is convenient for the user to connect the support frame 8 with the tool 9 to prevent the tool 9 from sliding and displacement.

[0031] In this embodiment, if Figure 3 As shown, the surface of the tool holder 4 is movably connected to a bearing plate 18 through a bearing, and the connecting frame 11 and the bracket 7 are fixedly connected to the surface of the bearing plate 18. By setting the bearing plate 18, the user can adjust the placement angle of the tool 9 to meet the processing requirements of different environments.

[0032] In this embodiment, if Figure 3 As shown, the left side of the tool holder 4 is fixedly connected with an electric telescopic rod 19, the output end of the electric telescopic rod 19 is fixedly connected with an extrusion block 20, and the left side of the tool holder 4 is movably connected with a positioning frame 21 through a pin shaft, the top of the positioning frame 21 contacts the surface of the supporting plate 18, and the top of the extrusion block 20 contacts the bottom of the positioning frame 21. By arranging the electric telescopic rod 19, the extrusion block 20 and the positioning frame 21, the adjusted supporting plate 18 can be prevented from rotational displacement, thereby improving the stability of the supporting plate 18.

[0033] In this embodiment, if Figure 3 As shown, a rubber pad 22 is fixedly connected to the top of the positioning frame 21, and the side of the rubber pad 22 away from the positioning frame 21 is in contact with the surface of the supporting plate 18. By providing the rubber pad 22, the positioning effect between the positioning frame 21 and the supporting plate 18 can be improved, and the friction force of the positioning frame 21 can be increased.

[0034] Working principle: When the special equipment for inner hole processing of screw pump is in use, the pump housing 3 is first fixedly connected to the surface of the spindle box 2. The spindle box 2 can drive the pump housing 3 to rotate, and the tool holder 4 can drive the tool 9 to move horizontally on the surface of the base 1, so that it extends to the inside of the pump housing 3 for cutting. When the cutting range of the tool 9 needs to be adjusted, the screw 12 is rotated, and the screw 12 uses the thread to push the screw sleeve 13 to move horizontally. During the movement of the screw sleeve 13, the slide bar 14 is driven to slide inside the sleeve plate 10. The sleeve plate 10 is squeezed and drives the support frame 8 to swing with the pin shaft inside the bracket 7 as the axis. The tool 9 located inside the support frame 8 changes its placement angle, thereby achieving the effect of stable and accurate adjustment of the cutting range of the tool head of the tool 9.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A special device for processing the inner hole of a screw pump, comprising a base (1), a spindle box (2) fixedly connected to the top of the base (1), a pump housing (3) clamped inside the spindle box (2), and a tool holder (4) slidably connected to the top of the base (1), characterized in that: The surface of the tool holder (4) is provided with an adjustment structure (5), and the surface of the tool holder (4) is provided with a transmission structure (6) located inside the adjustment structure (5). The adjustment structure (5) comprises a bracket (7) arranged on the left side of the tool holder (4), and the bracket (7) is movably connected to a support frame (8) via a pin shaft with a side away from the tool holder (4), a tool (9) is inserted into the support frame (8), and a sleeve plate (10) is fixedly connected to a side of the support frame (8) close to the bracket (7), and the transmission structure (6) can drive the sleeve plate (10) to swing.

2. The special equipment for processing inner hole of a screw pump according to claim 1, characterized in that: The transmission structure (6) comprises a connection frame (11) arranged on the left side of the tool holder (4), the connection frame (11) is located on the inner side of the sleeve plate (10), the interior of the connection frame (11) is movably connected with a screw rod (12) via a bearing, the surface of the screw rod (12) is threadedly connected with a screw sleeve (13), the screw sleeve (13) is located on the inner side of the sleeve plate (10), the top and bottom of the screw sleeve (13) are fixedly connected with a sliding rod (14), the side of the sliding rod (14) away from the screw sleeve (13) extends to the inside of the sleeve plate (10), and the sleeve plate (10) is slidably connected to the sliding rod (14).

3. The special equipment for processing inner hole of a screw pump according to claim 2, characterized in that: The surface of the sliding rod (14) is covered with a rubber sleeve (15), and the rubber sleeve (15) extends to the inside of the sleeve plate (10) at a side away from the screw sleeve (13). The rubber sleeve (15) is slidably connected to the sleeve plate (10), and the rubber sleeve (15) is elastic.

4. The special equipment for processing inner hole of a screw pump according to claim 2, characterized in that: A guide bar (16) is fixedly connected inside the connection frame (11), and a side of the guide bar (16) away from the connection frame (11) extends to the inside of the screw sleeve (13), and the screw sleeve (13) and the guide bar (16) are slidably connected.

5. The special equipment for processing inner hole of a screw pump according to claim 1, characterized in that: A bolt (17) is arranged on the top of the support frame (8), and one end of the bolt (17) close to the support frame (8) passes through the support frame (8) and extends into the interior of the support frame (8). The bolt (17) is threadedly connected to the support frame (8), and the bottom end of the bolt (17) contacts the surface of the tool (9).

6. The special equipment for processing inner hole of a screw pump according to claim 4, characterized in that: The surface of the tool holder (4) is movably connected to a bearing plate (18) via a bearing, and the connection frame (11) and the bracket (7) are both fixedly connected to the surface of the bearing plate (18).

7. The special equipment for processing inner hole of a screw pump according to claim 6, characterized in that: The left side of the tool holder (4) is fixedly connected to an electric telescopic rod (19), the output end of the electric telescopic rod (19) is fixedly connected to an extrusion block (20), the left side of the tool holder (4) is movably connected to a positioning frame (21) via a pin shaft, the top of the positioning frame (21) contacts the surface of the carrier plate (18), and the top of the extrusion block (20) contacts the bottom of the positioning frame (21).

8. The special equipment for processing inner hole of a screw pump according to claim 7, characterized in that: A rubber pad (22) is fixedly connected to the top of the positioning frame (21), and a side of the rubber pad (22) away from the positioning frame (21) is in contact with the surface of the carrying plate (18).