Vertical lifting workbench

Abstract

A vertical lifting workbench comprises an outer sleeve embedded part assembly, a lead screw speed reducer, a tool disc and a clamping mechanism, the outer sleeve embedded part assembly is embedded underground, the top of the outer sleeve embedded part assembly is provided with a plane on the ground plane, the lead screw speed reducer is arranged at the center position in the outer sleeve embedded part assembly, and the tool disc is arranged on the clamping mechanism. The four corners of the outer circumference of the lead screw speed reducer are each provided with a longitudinal guide column, the output end of the lead screw speed reducer is connected with a working table top, the four corners of the outer circumference of the working table top are each connected with a guide sleeve, the guide columns are sleeved with the guide sleeves in a sliding mode, a tool disc is fixed to the working table top through screws, and a clamping mechanism is installed on the tool disc. The lifting workbench device is installed below the ground level and does not occupy the ground space, and on the premise that the overall assembly quality of the multistage well submersible electric pump is guaranteed, the pump assembly efficiency and operation safety are improved, and the work site environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage well submersible electric pump technology, and in particular to a vertical lifting worktable. Background Technology

[0002] Multistage submersible pumps for wells mainly consist of a connecting frame assembly, impeller, lower guide shell assembly, middle guide shell assembly, upper guide shell assembly, and check valve body assembly. The assembled multistage submersible pump has a large length, and errors in shaft straightness can affect pump performance. To ensure the straightness of the multistage submersible pump shaft, a vertical assembly method must be used during assembly. The traditional method involves clamping the connecting frame assembly into a tooling fixture, then inserting the pump shaft into the connecting frame assembly, placing the pump shaft perpendicular to the horizontal plane. When assembling the impeller, lower, middle, and upper guide shell assemblies, and check valve body assembly, each component must be lifted above the top of the pump shaft and inserted to connect with the lower part of the workpiece. When assembling high-lift submersible pumps, due to the long pump shaft, a high stool is necessary. Workers stand on the stool to lift each component and insert it into the pump shaft for assembly. This assembly method is time-consuming, labor-intensive, costly, and has poor safety. Summary of the Invention

[0003] The present invention aims to address the shortcomings of the prior art by providing a vertical lifting worktable.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A vertical lifting worktable includes an outer sleeve embedded part assembly, a lead screw reducer, a tooling plate, and a clamping mechanism. The outer sleeve embedded part assembly is embedded in the ground, and the top of the outer sleeve embedded part assembly has a flat surface on the ground plane. The lead screw reducer is located at the center position inside the outer sleeve embedded part assembly, and a longitudinal guide column is set at each of the four corners of the outer circle of the lead screw reducer. The output end of the lead screw reducer is connected to the worktable surface, and a guide sleeve is connected at each of the four corners of the outer circle of the worktable surface. The guide sleeve is slidably sleeved on the guide column. The tooling plate is fixed on the worktable surface by screws, and the clamping mechanism is installed on the tooling plate.

[0006] The upper surface of the tooling tray is provided with a tooling positioning port.

[0007] A method for assembling a multi-stage submersible pump, employing a vertical lifting worktable, comprises the following steps:

[0008] S1. Start the lead screw reducer to raise the tooling plane of the tooling plate to the plane position;

[0009] S2. Fix the multi-stage submersible pump connection frame onto the tooling plate;

[0010] S3. The pump shaft is installed into the center bearing hole of the multi-stage well submersible electric pump connecting frame;

[0011] S4. Start the lead screw reducer, lower the worktable to the appropriate position, and then stop;

[0012] S5. Insert an impeller through the impeller center hole onto the pump shaft, then insert a tapered sleeve, and install the lower guide shell onto the pump shaft through the center bearing hole in the same way.

[0013] S6. Start the lead screw reducer, raise the tooling plate to the appropriate position, and stop;

[0014] S7. After the impeller is in place, tighten the tapered sleeve and the impeller hole to support the impeller and hold the pump shaft.

[0015] S8. The lower guide shell is installed on the connecting frame of the multi-stage well submersible electric pump and fastened with double-headed bolts and nuts;

[0016] S9. Start the screw reducer and lower the tooling plate to the appropriate position and stop. Fit an impeller, a conical sleeve, and a middle guide shell into the upper end of the pump shaft.

[0017] S10. Start the screw reducer and raise the tooling plate to the appropriate position and stop. After the impeller is in place, tighten the tapered sleeve and impeller hole to support the impeller and hold the pump shaft. Install the middle guide shell on the lower guide shell and tighten it with double-headed bolts and nuts.

[0018] S11. Repeat the above steps to complete the assembly of the multi-stage middle guide shell assembly, upper guide shell assembly, and check valve body assembly.

[0019] In step S2, the specific steps for fixing the multi-stage submersible pump connecting frame assembly onto the tooling plate are as follows: the positioning protrusion at the bottom of the multi-stage submersible pump connecting frame assembly is inserted into the tooling positioning port on the tooling plate, and then inserted into the clamping mechanism through the connecting frame flange on the multi-stage submersible pump connecting frame assembly.

[0020] The dimensions of the tooling positioning port and the clamping mechanism are selected based on the dimensions of the positioning protrusions in the multi-stage well submersible pump connecting frame assembly and the dimensions of the connecting holes on the connecting frame flange.

[0021] A cable is installed between the plane and the ground plane, the cable is connected to the lead screw reducer, and then led out to the external control box.

[0022] The beneficial effects of this utility model are: the lifting work platform equipment of this utility model is installed below the ground plane, which does not occupy the ground space. While ensuring the overall assembly quality of the multi-stage well submersible electric pump, it improves the pump assembly efficiency and operational safety, and improves the working site environment. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the vertical lifting worktable structure of this utility model;

[0024] Figure 2 Top view of the multi-stage submersible pump for wells of this utility model after assembling the vertical lifting worktable;

[0025] Figure 3 for Figure 2 Sectional view along line AA;

[0026] In the diagram: 1-Outer sleeve embedded assembly; 2-Screw reducer; 3-Workbench; 4-Tooling plate; 5-Tooling positioning port; 6-Clamping mechanism; 7-Multi-stage submersible pump connecting frame assembly; 8-Lower guide shell assembly; 9-Conical sleeve; 10-Impeller; 11-Middle guide shell assembly; 12-Upper guide shell assembly; 13-Check valve body assembly; 14-Positioning protrusion; 15-Connecting frame flange; 16-Tooling plane; 17-Plane; 18-Pump shaft; 19-Ground plane; 20-Guide column; 21-Guide sleeve; 22-Cable;

[0027] The following will describe in detail the embodiments of the utility model with reference to the accompanying drawings. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] like Figure 1 As shown, a vertical lifting worktable includes an outer sleeve pre-embedded part assembly 1, a lead screw reducer 2, a tooling plate 4, and a clamping mechanism 6. The outer sleeve pre-embedded part assembly 1 is embedded in the ground, and the top of the outer sleeve pre-embedded part assembly 1 has a plane 17 on the ground plane 19. The lead screw reducer 2 is located at the center position inside the outer sleeve pre-embedded part assembly 1, and a longitudinal guide column 20 is set at each of the four corners of the outer circle of the lead screw reducer 2. The output end of the lead screw reducer 2 is connected to the worktable surface 3, and a guide sleeve 21 is connected at each of the four corners of the outer circle of the worktable surface 3. The guide sleeve 21 is slidably sleeved on the guide column 20. The tooling plate 4 is fixed on the worktable surface 3 by screws, and the clamping mechanism 6 is installed on the tooling plate 4.

[0030] The upper surface of the tooling tray 4 is provided with a tooling positioning port 5.

[0031] like Figure 2 , 3 As shown,

[0032] A method for assembling a multi-stage submersible pump, employing a vertical lifting worktable, comprises the following steps:

[0033] S1. Start the lead screw reducer 2 to raise the tooling plane 16 of the tooling plate 4 to the plane 17 position;

[0034] S2. Fix the multi-stage well submersible pump connection frame 7 onto the tooling plate 4;

[0035] S3. Pump shaft 18 is installed into the center bearing hole of multi-stage well submersible electric pump connecting frame 7;

[0036] S4. Start the lead screw reducer 2, the worktable 3 will sink to the appropriate position, then stop;

[0037] S5. Insert an impeller 10 through the impeller center hole into the pump shaft 18, then insert a conical sleeve 9. In the same way, install the lower guide shell 8 through the center bearing hole onto the pump shaft 18.

[0038] S6. Start the lead screw reducer 2, raise the tooling plate 4 to the appropriate position, and stop;

[0039] S7. After the impeller 10 is in place, the conical sleeve 9 and the impeller hole of the impeller 10 are compacted to support the impeller 10 and hold the pump shaft 18.

[0040] S8. The lower guide shell assembly 8 is mounted on the multi-stage well submersible pump connecting frame assembly 7 and fastened with double-headed bolts and nuts;

[0041] S9. Start the screw reducer 2, so that the tooling plate 4 is lowered to the appropriate position and stopped. Insert an impeller 10, a conical sleeve 9, and a middle guide shell assembly 11 into the upper end of the pump shaft 18.

[0042] S10. Start the screw reducer 2, raise the tooling plate 4 to the appropriate position and stop. After the impeller 10 is in place, tighten the tapered sleeve 9 and the impeller hole to support the impeller 10 and hold the pump shaft 18. Install the middle guide shell part 11 on the lower guide shell part 8 and tighten it with double-headed bolts and nuts.

[0043] S11. Repeat the above steps to complete the assembly of the multi-stage middle guide shell assembly 11, the upper guide shell assembly 12, and the check valve body assembly 13.

[0044] In step S2, the specific steps for fixing the multi-stage submersible pump connecting frame assembly 7 onto the tooling plate 4 are as follows: the positioning protrusion 14 at the bottom of the multi-stage submersible pump connecting frame assembly 7 is inserted into the tooling positioning port 5 on the tooling plate 4, and then inserted into the clamping mechanism 6 through the connecting frame flange 15 on the multi-stage submersible pump connecting frame assembly 7.

[0045] The dimensions of the tooling positioning port 5 and the clamping mechanism 6 are selected based on the dimensions of the positioning protrusions 14 of the multi-stage well submersible pump connecting frame assembly 7 and the dimensions of the connecting holes on the connecting frame flange 15.

[0046] A cable 22 is installed between the plane 17 and the ground plane 19. The cable 22 is connected to the lead screw reducer 2 and led out to the external control box.

[0047] During operation, the dimensions of the tooling positioning port 5 and the clamping mechanism 6 are determined based on the dimensions between the positioning protrusions 14 of the multi-stage well submersible pump connecting frame assembly 7 and the dimensions of the connecting holes on the connecting frame flange 15. The dimensions of the tooling positioning port 5 and the clamping mechanism 6 on the tooling plate 4 are made into a series of tooling according to the corresponding dimensions of the workpiece.

[0048] S1. Start the lead screw reducer 2 to raise the tooling plane 16 of the tooling plate 4 to the plane 17 position;

[0049] S2. Fix the multi-stage submersible pump connection frame assembly 7 onto the tooling plate 4. The specific steps for fixing the multi-stage submersible pump connection frame assembly 7 onto the tooling plate 4 are as follows: the positioning protrusion 14 at the bottom of the multi-stage submersible pump connection frame assembly 7 is inserted into the tooling positioning port 5 on the tooling plate 4, and then inserted into the clamping mechanism 6 through the connection frame flange 15 on the multi-stage submersible pump connection frame assembly 7.

[0050] S3. Pump shaft 18 is installed into the center bearing hole of multi-stage well submersible electric pump connecting frame 7;

[0051] S4. Start the lead screw reducer 2, the worktable 3 will sink to the appropriate position, then stop;

[0052] S5. Insert an impeller 10 through the impeller center hole into the pump shaft 18, then insert a conical sleeve 9. In the same way, install the lower guide shell 8 through the center bearing hole onto the pump shaft 18.

[0053] S6. Start the lead screw reducer 2, raise the tooling plate 4 to the appropriate position, and stop;

[0054] S7. After the impeller 10 is in place, the conical sleeve 9 and the impeller hole of the impeller 10 are compacted to support the impeller 10 and hold the pump shaft 18.

[0055] S8. The lower guide shell assembly 8 is mounted on the multi-stage well submersible pump connecting frame assembly 7 and fastened with double-headed bolts and nuts;

[0056] S9. Start the screw reducer 2, so that the tooling plate 4 is lowered to the appropriate position and stopped. Insert an impeller 10, a conical sleeve 9, and a middle guide shell assembly 11 into the upper end of the pump shaft 18.

[0057] S10. Start the screw reducer 2, raise the tooling plate 4 to the appropriate position and stop. After the impeller 10 is in place, tighten the tapered sleeve 9 and the impeller hole to support the impeller 10 and hold the pump shaft 18. Install the middle guide shell part 11 on the lower guide shell part 8 and tighten it with double-headed bolts and nuts.

[0058] S11. Repeat the above steps to complete the assembly of the multi-stage middle guide shell assembly 11, the upper guide shell assembly 12, and the check valve body assembly 13.

[0059] The application of this utility model improves the overall assembly quality of multi-stage well submersible electric pumps, enhances work efficiency and operational safety, and improves the working environment.

[0060] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0061] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of a utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In utility models, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 the components; 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 the utility model according to the specific circumstances.

[0063] The utility model has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-described manner. Any improvements made using the utility model's inventive concept and technical solution, or direct application to other situations without modification, are all within the protection scope of the utility model.

Claims

1. A vertical lift platform, characterized by, It includes outer sleeve pre-embedded component assembly (1), screw rod speed reducer (2), tooling disc (4) and clamping mechanism (6), the outer sleeve pre-embedded component assembly (1) is embedded in the ground, the top of the outer sleeve pre-embedded component assembly (1) is provided with a plane (17) on the ground level (19), the screw rod speed reducer (2) is arranged at the center position in the outer sleeve pre-embedded component assembly (1), and a longitudinal guide column (20) is arranged at each of the four corner positions of the outer circumference of the screw rod speed reducer (2), the output end of the screw rod speed reducer (2) is connected with the workbench surface (3), the outer circumference of the workbench surface (3) is connected with one guide sleeve (21) at each of the four corner positions, the guide sleeve (21) is slidingly sleeved on the guide column (20), the tooling disc (4) is fixed on the workbench surface (3) through screws, and the clamping mechanism (6) is installed on the tooling disc (4).

2. A vertical lift platform as claimed in claim 1, wherein, The upper surface of the tooling disc (4) is provided with a tooling positioning opening (5).

3. A vertical lift platform as claimed in claim 2, wherein, The plane (17) and the ground level (19) are provided with a cable (22), the cable (22) is connected to the screw rod speed reducer (2) and led out to be connected to an external control box.

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