Forming device of shell for electric submersible pump

Abstract

The utility model discloses a forming device of a shell for an electric submersible pump, and relates to the field of shell manufacturing. A forming device of a shell for an electric submersible pump comprises a base and further comprises a forming cylinder fixedly connected to the base, the forming cylinder is internally provided with a containing groove and a sliding cavity, and the upper end of the containing groove is open; the pressing rod and the containing groove are coaxially arranged, and the pressing rod is connected to the base in a lifting mode; the jacking disc is connected into the containing groove in a sliding mode, and the straight drop of the jacking disc is the same as the diameter of the containing groove; according to the utility model, not only can the formed shell be ejected out of the placing groove, so that an operator can conveniently take the shell, but also scraps left on the inner wall of the placing groove can be scraped and brought out in the jacking process due to the fact that the jacking disc is tightly attached to the inner wall of the placing groove, so that the cleanness of the interior of the placing groove is ensured, and the production efficiency is improved. The influence of the chippings on subsequent forming operation is avoided, and the stable product quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of shell manufacturing technology, specifically, it relates to a molding device for a shell of a submersible electric pump. Background Technology

[0002] Submersible electric pumps are multi-stage centrifugal pumps that work downhole. They are lowered into the well along with the tubing. The surface power supply transmits electrical energy to the submersible electric motor through a transformer, control panel, and power cable. The submersible electric motor drives the multi-stage centrifugal pump to rotate, converting electrical energy into mechanical energy and lifting the well fluid in the oil well to the surface. During the manufacturing process, a molding device is needed to compress it into the required size.

[0003] For example, the utility model patent with patent application number 202020967942.8, entitled "A Molding Device for a Submersible Pump Housing," discloses a molding device for a submersible pump housing, belonging to the field of housing manufacturing. It includes a housing; a switch A is fixedly installed on the upper outer wall of the left side of the housing; a switch B is fixedly installed below switch A; a motor A is fixedly installed on the upper left outer wall of the housing; a threaded rod is rotatably installed through the lower end of motor A inside the housing; a threaded sleeve is rotatably sleeved on the outer wall of the threaded rod; a rotating sleeve is rotatably sleeved on the outer wall of the threaded sleeve; a sliding rod is fixedly installed inside the right side of the housing; a sliding sleeve is movably sleeved on the outer wall of the sliding rod; a horizontal plate is fixedly installed at the center of the sliding sleeve and the threaded sleeve; and a fixing frame is fixedly installed on the upper outer wall of the right side of the horizontal plate. By setting a rotating structure and processing devices of different sizes, the practicality of the molding device is improved.

[0004] The aforementioned patent also has the following drawbacks:

[0005] ① After the molded shell is removed from the placement groove, there may be residual debris in the placement groove. This is because during the shell extrusion molding process, the material may generate debris due to stress. Long-term use may lead to the accumulation of debris, which will affect the molding quality of the subsequent shells.

[0006] ② After the shell is formed, due to the lack of structures such as lifting or assisting in removing the shell from the placement slot, there may be defects that make it difficult to manually remove the shell from the placement slot. In view of this, this utility model is proposed. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a molding device for the housing of a submersible electric pump that can overcome or at least partially solve the above problems.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0009] A molding device for a submersible electric pump housing includes a base and further includes: a molding cylinder fixedly connected to the base, wherein the molding cylinder has a placement groove and a sliding cavity, and the upper end of the placement groove is open; a pressure rod coaxially arranged with the placement groove and vertically connected to the base; a lifting plate slidably connected to the placement groove, wherein the vertical drop of the lifting plate is the same as the diameter of the placement groove, a slider is slidably connected in the sliding cavity, and the slider is fixedly connected to the lifting plate through a connecting rod; and a pull rod rotatably connected to the slider, wherein a spring is sleeved on the pull rod, one end of the spring is fixedly connected to the slider, and the other end is fixedly connected to the inner wall of the sliding cavity, and a threaded portion is provided on the pull rod, the threaded portion being threadedly connected to the lower end of the molding cylinder.

[0010] To facilitate the operator's rotation of the pull rod via the handwheel, preferably, a handwheel is also included, which is fixedly connected to one end of the pull rod that passes through the lower end of the forming cylinder.

[0011] In order to drive the lifting seat to raise or lower the pressure rod, preferably, a hydraulic telescopic rod is symmetrically fixedly installed on the base, the output end of the hydraulic telescopic rod is fixedly connected to the lifting seat, and the pressure rod is connected to the lifting seat.

[0012] To achieve the molding of shells of different sizes, a rotating disk is rotatably connected to the lifting seat, and multiple pressure rods are provided. The multiple pressure rods are circumferentially distributed on the rotating disk, and the diameters of the multiple pressure rods are arranged in a sequentially decreasing manner.

[0013] In order to drive the rotating disk to rotate multiple pressure rods and adjust the pressure rods, a motor is fixedly installed on the lifting seat, and the rotating disk is fixedly connected to the output end of the motor.

[0014] To ensure the stability of the base, preferably, threaded holes are symmetrically provided at both ends of the base, and a screw is threaded into the threaded hole, with a base fixedly installed at the lower end of the screw.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0016] This invention not only allows the molded shell to be ejected from the placement groove, making it convenient for operators to retrieve the parts, but also, because the lifting plate is tightly fitted to the inner wall of the placement groove, it can scrape up and remove the debris remaining on the inner wall of the placement groove during the lifting process, ensuring the cleanliness of the inside of the placement groove, preventing debris from affecting subsequent molding operations, and ensuring stable product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the base and the molded cylinder of this utility model;

[0019] Figure 3 This is a sectional view of the molding cylinder, lifting plate, and tie rod of this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the present invention.

[0021] In the diagram: 1. Base; 101. Screw; 102. Base; 2. Forming cylinder; 201. Placement groove; 202. Sliding cavity; 3. Lifting seat; 301. Pressure rod; 302. Hydraulic telescopic rod; 303. Motor; 304. Rotating disk; 4. Lifting disk; 401. Slider; 402. Connecting rod; 403. Pull rod; 404. Threaded part; 405. Spring; 406. Handwheel. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] Example 1:

[0024] Reference Figure 1 , Figure 2 , Figure 3 A molding device for a submersible electric pump housing includes a base 1 and a molding cylinder 2 fixedly connected to the base 1. The molding cylinder 2 has a placement groove 201 and a sliding cavity 202 inside, and the upper end of the placement groove 201 is open. A pressure rod 301 is coaxially arranged with the placement groove 201 and is vertically connected to the base 1. A lifting plate 4 is slidably connected in the placement groove 201, wherein the vertical drop of the lifting plate 4 is the same as the diameter of the placement groove 201. A slider 401 is slidably connected in the sliding cavity 202, and the slider 401 is fixedly connected to the lifting plate 4 via a connecting rod 402. A pull rod 403 is rotatably connected to the slider 401. A spring 405 is sleeved on the pull rod 403. One end of the spring 405 is fixedly connected to the slider 401, and the other end is fixedly connected to the inner wall of the sliding cavity 202. A threaded part 404 is provided on the pull rod 403, and the threaded part 404 is threadedly connected to the lower end of the molding cylinder 2.

[0025] A hydraulic telescopic rod 302 is symmetrically fixedly installed on the base 1. A lifting seat 3 is fixedly connected to the output end of the hydraulic telescopic rod 302, and a pressure rod 301 is connected to the lifting seat 3.

[0026] In use, first place the submersible electric pump housing to be formed into the placement groove 201, then start the hydraulic telescopic rod 302, control the output end of the hydraulic telescopic rod 302 to retract, drive the lifting seat 3 to descend, and then cause the pressure rod 301 to descend to squeeze the housing placed in the placement groove 201 to form it.

[0027] After molding is completed, the output end of the hydraulic telescopic rod 302 extends, driving the lifting seat 3 to rise and resetting the pressure rod 301. Then, the pull rod 403 is rotated. Since the threaded portion 404 on the pull rod 403 is threadedly connected to the lower end of the molding cylinder 2, as it rotates, the threaded portion 404 gradually separates from the lower end of the molding cylinder 2. When the threaded portion 404 separates from the lower end of the molding cylinder 2, the spring 405, which was originally in a compressed state, begins to release its elastic potential energy, pushing the slider 401 upwards within the sliding cavity 202. During this process, the slider 401 drives the lifting plate 4 to slide upward in the placement groove 201 via the connecting rod 402. When the lifting plate 4 moves upward, it not only pushes the molded shell out of the placement groove 201 for easy removal by the operator, but also scrapes up and removes the debris remaining on the inner wall of the placement groove 201 during the lifting process because the lifting plate 4 is in close contact with the inner wall of the placement groove 201. This ensures the cleanliness of the inside of the placement groove 201, prevents debris from affecting subsequent molding operations, and ensures stable product quality.

[0028] Example 2:

[0029] Reference Figure 3 A molding device for a housing of a submersible electric pump is basically the same as that in Embodiment 1, but further includes a handwheel 406, which is fixedly connected to one end of the pull rod 403 that passes through the lower end of the molding cylinder 2.

[0030] When it is necessary to remove the formed shell from the placement slot 201, the operator manually turns the handwheel 406, which drives the pull rod 403 to rotate, thereby raising the lifting plate 4 and ejecting the shell.

[0031] Because the handwheel 406 provides a convenient operating component for the operator, its large diameter and easy-to-grip design make it easier for the operator to apply torque to turn the lever 403. Compared with directly turning the lever 403, using the handwheel 406 can reduce the difficulty of operation, improve the comfort and efficiency of operation, make the lifting operation of the lifting plate 4 more convenient, and further enhance the practicality of the entire molding device.

[0032] Example 3:

[0033] Reference Figure 1 , Figure 4A molding device for a housing of a submersible electric pump is basically the same as that in Embodiment 1. Furthermore, a rotating disk 304 is rotatably connected to the lifting seat 3, and multiple pressure rods 301 are provided. The multiple pressure rods 301 are circumferentially distributed on the rotating disk 304, and the diameters of the multiple pressure rods 301 decrease sequentially.

[0034] A motor 303 is fixedly installed on the lifting seat 3, and the rotating disk 304 is fixedly connected to the output end of the motor 303.

[0035] In use, the motor 303 is started, and the motor 303 drives the rotating disk 304 to rotate. The multiple pressure rods 301 on it rotate synchronously, so that the appropriate diameter pressure rod 301 can be selected according to the size of the shell to be formed. When the appropriate diameter pressure rod 301 rotates to the position coaxial with the placement groove 201, the motor 303 stops running, and the selection of the pressure rod 301 is completed. Then, the submersible electric pump shell to be formed can be pressed and formed.

[0036] In summary, by adjusting the pressure rod 301, shell forming processes of different sizes can be achieved, improving processing efficiency and increasing the practicality of the forming device.

[0037] Example 4:

[0038] Reference Figure 1 A molding device for a housing of a submersible electric pump is basically the same as that in Embodiment 1. Furthermore, threaded holes are symmetrically opened at both ends of the base 1, and a screw 101 is threadedly connected to the threaded hole. A base 102 is fixedly installed at the lower end of the screw 101.

[0039] First, place the molding device on the work site. If the ground on which the molding device is placed is uneven, rotate the screw 101 to move it up and down within the threaded hole, thereby adjusting the height of the base 102. Adjust each screw 101 according to the indications of tools such as a level to ensure the base 1 is level. A level base 1 is crucial for the coaxiality of the pressure rod 301 and the placement groove 201, as well as the stability of the extrusion process. This ensures the quality and precision of the shell molding, reduces additional wear caused by device tilting, and extends the equipment's service life.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A molding apparatus for a housing of a submersible electric pump, comprising a base (1), characterized in that, Also includes: The forming cylinder (2) is fixedly connected to the base (1). The forming cylinder (2) is provided with a placement groove (201) and a sliding cavity (202), and the upper end of the placement groove (201) is open. The pressure rod (301) is coaxially arranged with the placement groove (201) and is lifted and lowered on the base (1); The lifting plate (4) is slidably connected in the placement slot (201). The diameter of the lifting plate (4) is the same as that of the placement groove (201). A slider (401) is slidably connected in the sliding cavity (202). The slider (401) is fixedly connected to the lifting plate (4) through the connecting rod (402). The pull rod (403) is rotatably connected to the slider (401). The pull rod (403) is fitted with a spring (405), one end of which is fixedly connected to the slider (401) and the other end is fixedly connected to the inner wall of the sliding cavity (202). The pull rod (403) is provided with a threaded part (404), which is threadedly connected to the lower end of the forming cylinder (2).

2. The molding apparatus for a submersible electric pump housing according to claim 1, characterized in that, It also includes a handwheel (406), which is fixedly connected to one end of the pull rod (403) that passes through the lower end of the forming cylinder (2).

3. The molding apparatus for a submersible electric pump housing according to claim 1, characterized in that, Hydraulic telescopic rods (302) are symmetrically fixedly installed on the base (1). A lifting seat (3) is fixedly connected to the output end of the hydraulic telescopic rod (302). The pressure rod (301) is connected to the lifting seat (3).

4. The molding apparatus for a submersible electric pump housing according to claim 3, characterized in that, The lifting seat (3) is rotatably connected to a rotating disk (304), and multiple pressure rods (301) are provided. The multiple pressure rods (301) are circumferentially distributed on the rotating disk (304), and the diameters of the multiple pressure rods (301) are arranged in descending order.

5. The molding apparatus for a submersible electric pump housing according to claim 4, characterized in that, A motor (303) is fixedly installed on the lifting seat (3), and the rotating disk (304) is fixedly connected to the output end of the motor (303).

6. The molding apparatus for a submersible electric pump housing according to claim 1, characterized in that, The base (1) has threaded holes symmetrically opened at both ends, and a screw (101) is threadedly connected to the threaded hole. A base (102) is fixedly installed at the lower end of the screw (101).

Images