A device for polishing the inner wall of a pump casing
By designing an inner wall grinding device suitable for pump casings of different orifice sizes, and using a drive motor and adjustment components to achieve stable fixing and grinding of the pump casing, the problem of low grinding efficiency in the existing technology is solved, and the processing efficiency and stability are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUFEI TECHNOLOGY IND (DALIAN) CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-21
Smart Images

Figure CN224526689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pump casing processing technology, and in particular to a device for grinding the inner wall of a pump casing. Background Technology
[0002] A sewage pump is a type of pump that integrates the pump and motor, both of which are submerged in liquid. Sewage pumps are mainly used to remove sewage or wastewater and have a variety of applications, such as: submersible sewage pumps are used in municipal engineering and construction sites, urban sewage treatment and discharge systems, wastewater discharge from enterprises and units, and sewage discharge from residential areas. The main body of a sewage pump is mostly cylindrical or cylindrical.
[0003] Currently, when processing the casing of a sewage pump, a specific grinding device is required to grind the inner wall of the casing to ensure smooth rotation of the pump during operation. However, existing grinding devices are not suitable for grinding the inner walls of pump casings with different orifice diameters, thus reducing the efficiency of pump casing processing and presenting certain limitations. Therefore, those skilled in the art have provided a pump casing inner wall grinding device to solve the problems mentioned in the background art. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a pump casing inner wall grinding device, which solves the problem mentioned in the background art that makes it difficult to grind the inner walls of pump casings with different apertures, thereby reducing the working efficiency of pump casing processing and having certain limitations.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pump casing inner wall grinding device, including an operating table, a processing plate is provided at the center of the outer top surface of the operating table, a pump casing is defined on the outer top surface of the processing plate by a clamping assembly, support plates are fixedly installed at both ends of the outer top surface of the operating table, a top plate is fixedly fixed on the outer top surface of the two support plates, a U-shaped frame is provided on the outer bottom surface of the top plate, a rotating shaft is rotatably installed on the outer bottom surface of the U-shaped frame, a drive motor is fixed inside the U-shaped frame, a rotating shaft is rotatably installed on the outer bottom surface of the U-shaped frame, a grinding wheel is fixed at one end of the rotating shaft, and the other end extends rotatably into the interior of the U-shaped frame and is fixedly connected to the output end of the drive motor, and an adjustment assembly for driving the grinding wheel to move up and down and left and right is provided on the outer top surface of the top plate;
[0006] The adjustment assembly includes a through-type square groove on the outer top surface of the top plate. Screws are symmetrically and rotatably mounted inside the groove. A block is threadedly connected to the outer periphery of two screws. An electric push rod is fixed to the outer top surface of the block. The output end of the electric push rod extends rotatably to the outer bottom surface of the block and is fixedly connected to the outer top surface of the U-shaped frame. The two ends of the two screws extend rotatably to the left and right outer walls of the top plate, respectively. Gears are fixed to the right outer wall of the top plate, located on the outer walls of both screws, and the two gears mesh with each other. A second drive motor is fixed to the left outer wall of the top plate, and the output end of the second drive motor is fixedly connected to one of the screws.
[0007] As a further technical solution of this utility model, the clamping assembly includes square covers fixed at the left and right ends of the processing disk. Each of the two square covers has a clamping block on its corresponding outer wall. Each of the two square covers has an electric push rod II installed inside. The output ends of the two electric push rod II slide to the corresponding outer sides of the two square covers and are fixedly connected to the opposite outer walls of the two clamping blocks, respectively.
[0008] As a further technical solution of this utility model, guide rods are symmetrically installed on the opposite outer walls of the two clamping blocks, and the opposite ends of the two pairs of guide rods slide into the interior of the two square covers respectively.
[0009] As a further technical solution of this utility model, the front outer wall of the operating table is provided with a through square opening, a round rod is rotatably installed on the inner bottom surface of the square opening, a worm gear is fixedly installed on the outer wall of the round rod, and one end of the round rod extends rotatably to the outer top surface of the operating table and is fixedly connected to the outer bottom surface of the processing tray.
[0010] As a further technical solution of this utility model, a worm gear is rotatably installed inside the square opening, and a drive motor is rotatably installed on the right outer wall of the operating table. One end of the worm gear extends rotatably to the right outer wall of the operating table and is fixedly connected to the output end of the drive motor. The worm gear and the worm wheel are meshed and connected to each other.
[0011] As a further technical solution of this utility model, the outer top surface of the loop frame is symmetrically equipped with guide rods two, and one end of the two guide rods two slides to the outer top surface of the block.
[0012] As a further technical solution of this utility model, square legs are fixedly installed at the four corners of the outer bottom surface of the operating table, and through screw holes are opened on the outer bottom surface of the four square legs.
[0013] This utility model provides a pump casing inner wall grinding device, which has the following advantages compared with the prior art:
[0014] Beneficial effects:
[0015] 1. This design provides a pump casing inner wall grinding device. Through the configuration of a third drive motor, a round rod, a worm gear, and a worm, the processing disc drives the pump casing to rotate at a uniform speed. Simultaneously, with the cooperation of a first drive motor, a lead screw, a square block, and an electric push rod, the device can grind the inner walls of pump casings with different apertures, thereby improving the efficiency of pump casing processing.
[0016] 2. The pump casing inner wall grinding device designed in this paper can limit and fix pump casings of different hole diameters by setting a square cover, electric push rod II, and clamping block, thereby ensuring the stability of the pump casing during the grinding process and preventing the pump casing from moving and affecting the grinding effect. Attached Figure Description
[0017] Figure 1 A first three-dimensional structural schematic diagram of a pump casing inner wall grinding treatment device;
[0018] Figure 2 A second three-dimensional structural schematic diagram of a pump casing inner wall grinding treatment device;
[0019] Figure 3 A cross-sectional three-dimensional structural diagram of a pump casing inner wall grinding device;
[0020] Figure 4 A three-dimensional structural diagram of the adjustment component of a pump casing inner wall grinding device;
[0021] Figure 5 This is a three-dimensional structural diagram of the clamping component of a pump casing inner wall grinding device.
[0022] In the picture:
[0023] 1. Operating table; 101. Processing tray; 102. Pump casing; 103. Support plate; 104. Top plate; 105. U-shaped frame; 106. Rotating shaft; 107. Drive motor one; 108. Grinding wheel; 109. Guide rod two;
[0024] 2. Clamping assembly; 201. Square cover; 202. Clamping block; 203. Electric push rod two; 204. Guide rod one;
[0025] 3. Adjustment components; 301. Square groove; 302. Lead screw; 303. Square block; 304. Electric push rod one; 305. Gear; 306. Drive motor two;
[0026] 4. Square opening; 401. Round rod; 402. Worm gear; 403. Worm; 404. Drive motor
[0027] 5. Square leg; 501. Screw hole. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0029] Please see Figure 1-5 This utility model provides a technical solution for a pump casing inner wall grinding device: It includes an operating table 1, with square legs 5 fixedly installed at the four corners of the outer bottom surface of the operating table 1. Each of the four square legs 5 has a through-hole screw hole 501 on its outer bottom surface. Tightening the bolts in the screw holes 501 fixes the operating table 1 in a designated position via the square legs 5, ensuring the stability of the operating table 1. A processing plate 101 is located at the center of the outer top surface of the operating table 1. The pump casing 102 to be processed is placed on the processing plate 101. A through-hole square opening 4 is opened on the front outer wall of the operating table 1. A round rod 401 is rotatably installed on the inner bottom surface of the square opening 4. A worm gear 402 is fixedly installed on the outer wall of the round rod 401. One end of the round rod 401 extends rotatably to… The top surface of the operating table 1 is fixedly connected to the bottom surface of the processing disk 101. A worm gear 403 is rotatably installed inside the square opening 4. A drive motor 404 is rotatably installed on the right outer wall of the operating table 1. One end of the worm gear 403 extends to the right outer wall of the operating table 1 and is fixedly connected to the output end of the drive motor 404. The worm gear 403 and the worm wheel 402 mesh with each other. Then, the controller controls and starts the drive motor 404 to drive the worm gear 403 to rotate circumferentially inside the square opening 4. This drives the worm wheel 402 to drive the round rod 401 to drive the processing disk 101 to rotate at a uniform speed, which facilitates the subsequent circumferential grinding operation on the inner wall of the pump housing 102 (the inner wall of the pump housing 102 is a uniform circumferential shape).
[0030] A pump housing 102 is defined on the outer top surface of the processing disk 101 by a clamping assembly 2. The clamping assembly 2 includes square covers 201 fixed at the left and right ends of the processing disk 101 (the square covers 201 prevent debris from falling onto the electric push rods 203). Each of the two square covers 201 has a clamping block 202 on its corresponding outer wall. Each of the two square covers 201 has an electric push rod 203 installed inside it. The output ends of the two electric push rods 203 slide to the corresponding outer sides of the two square covers 201 and are fixedly connected to the opposite outer walls of the two clamping blocks 202. Guide rods 204 are symmetrically installed on the opposite outer walls of the clamping blocks 202 (the guide rods 204 help ensure the stability of the clamping blocks 202 during relative movement). Two pairs of guide rods 204 slide at opposite ends into the interior of two square covers 201, controlling and activating the electric push rod 304 to extend, thereby pushing the two clamping blocks 202 to move closer to each other, limiting and fixing the two sides of the pump housing 102. Under the weight of the pump housing 102 itself, the pump housing 102 is kept stable on the processing plate 101, preventing the pump housing 102 from moving during grinding and affecting the grinding effect, thus improving the stability of the pump housing 102 grinding process (at the same time, an accordion sleeve is provided between the square cover 201 and the clamping block 202 to prevent grinding debris from falling on the output end of the electric push rod 203 and the guide rod 204, thereby affecting the use effect).
[0031] Support plates 103 are fixedly installed on both the left and right ends of the outer top surface of the control panel 1. A top plate 104 is fixed on the outer top surface of the two support plates 103. A U-shaped frame 105 is provided on the outer bottom surface of the top plate 104. A rotating shaft 106 is rotatably installed on the outer bottom surface of the U-shaped frame 105. A drive motor 107 is fixed inside the U-shaped frame 105. A grinding wheel 108 is fixed at one end of the rotating shaft 106, while the other end extends rotatably into the interior of the U-shaped frame 105 and is fixedly connected to the output end of the drive motor 107. The drive motor 107 is controlled and started to drive the rotating shaft 106 to drive the grinding wheel 108 to rotate in a circle, thereby performing grinding operations on the inner wall of the pump casing 102.
[0032] An adjustment assembly 3 for driving the grinding wheel 108 to move up and down and left and right is provided on the outer top surface of the top plate 104. The adjustment assembly 3 includes a through square groove 301 formed on the outer top surface of the top plate 104. Screws 302 are symmetrically rotatably installed inside the square groove 301. The outer peripheral sidewalls of the two screws 302 are threadedly connected to a block 303. An electric push rod 304 is fixed to the outer top surface of the block 303. The output end of the electric push rod 304 extends rotatably to the outer bottom surface of the block 303 and is fixedly connected to the outer top surface of the U-shaped frame 105. The two ends of the two screws 302 The rotating parts extend to the left and right outer walls of the top plate 104 respectively. Gears 305 are fixed to the right outer wall of the top plate 104, located on the outer walls of the two lead screws 302. The two gears 305 mesh with each other. A second drive motor 306 is fixed to the left outer wall of the top plate 104. The output end of the second drive motor 306 is fixedly connected to one of the lead screws 302. Guide rods 109 are symmetrically installed on the outer top surface of the U-shaped frame 105. One end of each guide rod 109 slides to the outer top surface of the block 303, controlling and activating the second drive motor 306 to drive one of the lead screws 302. A lead screw 302 drives one of the gears 305 to rotate. Through the meshing connection of the gears 305, the other gear 305 drives the other lead screw 302 to rotate synchronously. Since the threads of the two lead screws 302 run in opposite directions, this drives the block 303 to move laterally left and right along the square groove 301. Simultaneously, it controls and activates the electric push rod 304 to drive the circular frame 105 downwards. Once the designated grinding position is reached, the drive motor 306 and the electric push rod 304 stop operating (when the drive motor 306 stops, the top...). A shaft locking device installed on the left outer wall is used to fix and lock the lead screw 302 to prevent it from spinning. This allows the grinding wheel 108 to grind the inner wall of the pump housing 102, thus meeting the needs of grinding the inner wall of pump housings 102 with different orifice diameters and improving applicability. (At the same time, accordion sleeves are provided between the outer bottom surface of the block 303, the outer top surface of the loop frame 105, and the inner walls of the left and right sides of the square groove 301 and the outer walls of the left and right sides of the block 303, so as to avoid the debris generated during the grinding process from damaging the lead screw 302 and the electric push rod 304 and affecting its performance.)
[0033] The working principle of this utility model is as follows: When using it, first place the pump housing 102 to be processed on the processing plate 101, then start the electric push rod 304 to push the two clamping blocks 202 to limit and fix the two sides of the pump housing 102 so that the pump housing 102 is steadily stationary on the processing plate 101.
[0034] Simultaneously, the electric push rod 304 is activated to drive the circular frame 105 downward, allowing the grinding wheel 108 to enter the pump housing 102. Then, the drive motor 306 is activated to drive the lead screw 302 to move the block 303 laterally along the square groove 301, allowing the circular frame 105 to move with the grinding wheel 108 inside the pump housing 102, so that they come into contact with the inner wall of the pump housing 102. After that, the controller controls the drive motor 306 and the electric push rod 304 to stop operating.
[0035] At the same time, the drive motor 107 is started to drive the rotating shaft 106 to drive the grinding wheel 108 to rotate in a circle, thereby grinding the inner wall of the pump casing 102.
[0036] Finally, the drive motor 404 is started to drive the worm gear 403 to rotate the drive worm wheel 402 in a circular motion, so that the round rod 401 drives the processing disc 101 to rotate the pump housing 102 at a constant speed on the operating disc, thereby allowing the grinding wheel 108 to perform a circular grinding operation on the inner wall of the pump housing 102.
[0037] It should be noted that all electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art, so the control method and circuit connection will not be explained in detail.
[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A device for grinding the inner wall of a pump casing, characterized in that, The system includes an operating table (1), a processing tray (101) is provided at the center of the outer top surface of the operating table (1), a pump housing (102) is defined on the outer top surface of the processing tray (101) by a clamping assembly (2), support plates (103) are fixedly installed at both ends of the outer top surface of the operating table (1), a top plate (104) is fixedly installed on the outer top surface of the two support plates (103), a loop frame (105) is provided on the outer bottom surface of the top plate (104), and a rotating shaft is rotatably installed on the outer bottom surface of the loop frame (105). (106) A drive motor (107) is fixed inside the loop frame (105). A rotating shaft (106) is rotatably mounted on the outer bottom surface of the loop frame (105). A grinding wheel (108) is fixed at one end of the rotating shaft (106), while the other end extends rotatably into the interior of the loop frame (105) and is fixedly connected to the output end of the drive motor (107). An adjustment component (3) for driving the grinding wheel (108) to move up and down and left and right is provided on the outer top surface of the top plate (104). The adjustment component (3) includes a through-type square groove (301) on the outer top surface of the top plate (104). Screws (302) are symmetrically and rotatably mounted inside the square groove (301). A block (303) is threadedly connected to the outer periphery of the two screws (302). An electric push rod (304) is fixed to the outer top surface of the block (303). The output end of the electric push rod (304) extends rotatably to the outer bottom surface of the block (303) and connects with the loop frame (105). The top surface is fixedly connected, and the two ends of the two lead screws (302) are respectively rotated and extended to the left and right outer walls of the top plate (104). Gears (305) are fixed on the right outer wall of the top plate (104) and on the outer wall of the two lead screws (302). The two gears (305) are meshed and connected to each other. A second drive motor (306) is fixed on the left outer wall of the top plate (104). The output end of the second drive motor (306) is fixedly connected to one of the lead screws (302).
2. The pump casing (102) inner wall grinding device according to claim 1, characterized in that, The clamping assembly (2) includes square covers (201) fixed at the left and right ends of the processing disk (101). Each of the two square covers (201) has a clamping block (202) on its corresponding outer wall. Each of the two square covers (201) has an electric push rod (203) installed inside. The output ends of the two electric push rods (203) slide to the corresponding outer side of the two square covers (201) and are fixedly connected to the opposite outer side wall of the two clamping blocks (202).
3. The pump casing (102) inner wall grinding device according to claim 2, characterized in that, Guide rods (204) are symmetrically installed on opposite outer walls of the two clamping blocks (202), and the opposite ends of the two pairs of guide rods (204) slide into the interior of the two square covers (201).
4. The pump casing (102) inner wall grinding device according to claim 1, characterized in that, The front outer wall of the operating table (1) has a through square opening (4). A round rod (401) is rotatably installed on the inner bottom surface of the square opening (4). A worm gear (402) is fixedly installed on the outer wall of the round rod (401). One end of the round rod (401) extends rotatably to the outer top surface of the operating table (1) and is fixedly connected to the outer bottom surface of the processing disc (101).
5. The pump casing (102) inner wall grinding device according to claim 4, characterized in that, A worm gear (403) is rotatably installed inside the square opening (4), and a drive motor (404) is rotatably installed on the right outer wall of the operating table (1). One end of the worm gear (403) extends rotatably to the right outer wall of the operating table (1) and is fixedly connected to the output end of the drive motor (404). The worm gear (403) and the worm wheel (402) are meshed with each other.
6. The pump casing (102) inner wall grinding device according to claim 1, characterized in that, The outer top surface of the loop frame (105) is symmetrically equipped with guide rods two (109), and one end of the two guide rods two (109) slides to the outer top surface of the block (303).
7. The grinding device for the inner wall of a pump casing (102) according to claim 1, characterized in that, The four corners of the outer bottom surface of the operating table (1) are fixedly installed with square legs (5), and each of the four square legs (5) has a through screw hole (501) on its outer bottom surface.