High-voltage-resistant motor end cover of mining explosion-proof submersible desilting electric pump
By designing the support structure and extrusion ring of the end cap of the high-voltage motor in a submersible sand drainage electric pump for mining, the problem of end cap damage caused by high-pressure water flow shock is solved, the compressive resistance and connection strength are improved, and the use of the equipment is extended life.
Patent Information
- Application Number
- CN202420931594.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing mine explosion-proof submersible sand drainage electric pumps are easily damaged under the impact of high-pressure water flow, resulting in a reduced protection effect of the motor end cover, and debris entering the pump body to damage internal components.
A high-voltage resistant motor end cover is designed, using supporting structures and extrusion rings, which form an expansion and extrusion effect through supporting frames, supporting shafts, supporting bolts and extrusion rods, thereby improving the compressive resistance of the fixed cover. Enhance sealing and contact force with elastic protective sleeves and partition springs.
It effectively improves the compressive resistance of the motor end cover and the connection strength with the pump body, prevents debris from entering and extends the service life of the equipment.
Smart Images
Figure CN222215362U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of submersible sand-draining electric pumps, in particular to a high-voltage motor end cover of a mining explosion-proof submersible sand-draining electric pump. Background Art
[0002] The flameproof submersible sand pump for mining is mainly used for drainage work in underground coal mines. When the existing flameproof submersible sand pump is in use, the motor end cover on the pump body is in a high-pressure environment and is constantly impacted by high-pressure water flow, which is prone to damage, reducing the protective effect of the end cover on the inside of the pump body. It is easy for debris to enter the pump body through the filter holes of the damaged end cover, causing damage to the components inside the pump body. Utility Model Content
[0003] The purpose of the utility model is to provide a high-pressure motor end cover of a flameproof submersible sand-draining electric pump for mining, so as to solve the problem that the motor end cover on the pump body in the traditional technology is in a high-pressure environment and is constantly impacted by the high-pressure water flow and is easily damaged, thereby reducing the protective effect of the end cover on the inside of the pump body.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A high-voltage motor end cover of a flameproof submersible sand-draining electric pump for mining, comprising:
[0006] A fixed cover, wherein a plurality of filter holes are formed on the fixed cover, wherein the fixed cover is mounted on the pump body;
[0007] The supporting structure includes a supporting frame, a supporting shaft, a supporting bolt and a supporting block. The supporting frame is fixedly connected to the inside of a fixing cover, a supporting shaft is fixedly connected to the supporting frame, a supporting bolt is coaxially rotatably connected to the bottom end of the fixing cover, a threaded groove is coaxially opened at the bottom end of the supporting shaft, a top end of the supporting bolt is threadedly connected in the threaded groove, and one end of the supporting bolt extending into the fixing cover is coaxially fixedly connected to a supporting block.
[0008] Preferably, a protective pad is fixedly connected to one end of the support block away from the support shaft, and the protective pad abuts against the inner bottom of the fixed cover.
[0009] Preferably, a protective sleeve is sleeved on the supporting bolt, one end of the protective sleeve is sealed and fixedly connected to the supporting block, and the other end is sealed and fixedly connected to the bottom end of the supporting shaft, and the protective sleeve is made of elastic rubber.
[0010] Preferably, a plurality of extrusion rods are fixedly connected to the support frame, a connecting ring is coaxially fixedly connected inside the fixed cover, an extrusion ring is fixedly connected to the inner circumference of the connecting ring, and one end of the plurality of extrusion rods away from the support frame is fixedly connected to the side of the extrusion ring away from the fixed cover, wherein the pump body is located between the fixed cover and the extrusion ring.
[0011] Preferably, the connecting ring is elastic, wherein the extrusion ring abuts against the pump body during operation.
[0012] Preferably, a separation spring is fixedly connected to the top of the threaded groove, and a rotating block is fixedly connected to one end of the separation spring away from the threaded groove, and the rotating block is coaxially rotatably connected to the top of the supporting bolt.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the utility model, a support structure is provided. After the fixed cover is installed on the pump body, the support bolt is rotated in the opposite direction so that the support bolt is partially screwed out of the thread groove in the support shaft, so that the support bolt and the support shaft are separated from each other, thereby forming an expansion and squeezing effect on the top and bottom of the fixed cover through the support frame and the support block, thereby improving the pressure resistance of the fixed cover.
[0015] 2. In the utility model, an extrusion ring is provided. When the support frame squeezes the top of the fixed cover, the support frame partially deforms and pushes multiple extrusion rods. The multiple extrusion rods form an extrusion effect on the extrusion ring on the connecting ring, so that the extrusion ring is squeezed on the inner side of the pump body, thereby improving the connection strength between the fixed cover and the pump body, and further improving the pressure resistance of the fixed cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a vertical cross-sectional structural schematic diagram of the utility model;
[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.
[0019] In the figure: 1 fixed cover, 2 filter hole, 3 support frame, 4 support shaft, 5 threaded groove, 6 support bolt, 7 support block, 8 protective pad, 9 protective cover, 10 extrusion rod, 11 connecting ring, 12 extrusion ring, 13 separation spring, 14 rotating block. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0021] Reference Figure 1-Figure 3 , a high-voltage motor end cover of a flameproof submersible sand-draining electric pump for mining, comprising:
[0022] A fixed cover 1 is provided with a plurality of filter holes 2, wherein the fixed cover 1 is installed on the pump body.
[0023] The supporting structure includes a supporting frame 3, a supporting shaft 4, a supporting bolt 6 and a supporting block 7. The supporting frame 3 is fixedly connected to the inside of the fixed cover 1, and the supporting shaft 4 is fixedly connected to the supporting frame 3. The bottom end of the fixed cover 1 is coaxially rotatably connected with the supporting bolt 6. The bottom end of the supporting shaft 4 is coaxially provided with a thread groove 5. The top end of the supporting bolt 6 is threadedly connected in the thread groove 5. The supporting bolt 6 extends into one end of the fixed cover 1 and is coaxially fixedly connected with the supporting block 7.
[0024] A protective pad 8 is fixedly connected to one end of the support block 7 away from the support shaft 4 , and the protective pad 8 abuts against the inner bottom of the fixed cover 1 .
[0025] A protective sleeve 9 is provided on the support bolt 6, one end of the protective sleeve 9 is sealed and fixedly connected to the support block 7, and the other end is sealed and fixedly connected to the bottom end of the support shaft 4. The protective sleeve 9 is made of elastic rubber, and the protective sleeve 9 forms a protective effect on the support bolt 6.
[0026] A plurality of extrusion rods 10 are fixedly connected to the support frame 3, a connecting ring 11 is coaxially fixedly connected inside the fixed cover 1, an extrusion ring 12 is fixedly connected to the inner circumference of the connecting ring 11, and one end of the plurality of extrusion rods 10 away from the support frame 3 is fixedly connected to the side of the extrusion ring 12 away from the fixed cover 1, wherein the pump body portion is located between the fixed cover 1 and the extrusion ring 12.
[0027] The connecting ring 11 is elastic, wherein the extrusion ring 12 abuts against the pump body during operation.
[0028] A separation spring 13 is fixedly connected to the top end of the threaded groove 5, and a rotating block 14 is fixedly connected to the end of the separation spring 13 away from the threaded groove 5. The rotating block 14 is coaxially connected to the top end of the support bolt 6. The separation spring 13 is initially in a compressed state. Under the action of the elastic force of the separation spring 13, the contact effect between the support bolt 6 and the support shaft 4 is improved to prevent the two from loosening.
[0029] The operating principle of the utility model is now described as follows:
[0030] After the fixing cover 1 is mounted on the pump body, the support bolt 6 is rotated in the reverse direction so that the support bolt 6 is partially screwed out of the thread groove 5 in the support shaft 4, so that the support bolt 6 and the support shaft 4 are separated from each other, thereby forming an expansion and squeezing effect on the top and bottom of the fixing cover 1 through the support frame 3 and the support block 7, thereby improving the pressure resistance of the fixing cover 1;
[0031] At the same time, when the support frame 3 squeezes the top of the fixed cover 1, the support frame 3 partially deforms and pushes the multiple extrusion rods 10, which form an extrusion effect on the extrusion ring 12 on the connecting ring 11, causing the connecting ring 11 to deform, so that the extrusion ring 12 is squeezed on the inner side of the pump body, further improving the connection strength between the fixed cover 1 and the pump body, and improving the pressure resistance of the fixed cover 1.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining, characterized in that: include: A fixed cover (1), wherein a plurality of filter holes (2) are formed on the fixed cover (1), wherein the fixed cover (1) is mounted on the pump body; A support structure, the support structure comprising a support frame (3), a support shaft (4), a support bolt (6) and a support block (7), the support frame (3) being fixedly connected inside a fixed cover (1), the support frame (3) being fixedly connected to a support shaft (4), the bottom end of the fixed cover (1) being coaxially rotatably connected to a support bolt (6), the bottom end of the support shaft (4) being coaxially provided with a thread groove (5), the top end of the support bolt (6) being threadedly connected in the thread groove (5), and one end of the support bolt (6) extending into the fixed cover (1) being coaxially fixedly connected to a support block (7).
2. The high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: in: A protective pad (8) is fixedly connected to one end of the support block (7) away from the support shaft (4), and the protective pad (8) abuts against the inner bottom of the fixed cover (1).
3. The high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: in: The support bolt (6) is sleeved with a protective sleeve (9), one end of the protective sleeve (9) is sealed and fixedly connected to the support block (7), and the other end is sealed and fixedly connected to the bottom end of the support shaft (4), and the protective sleeve (9) is made of elastic rubber.
4. The high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: in: A plurality of extrusion rods (10) are fixedly connected to the support frame (3), a connecting ring (11) is coaxially fixedly connected inside the fixed cover (1), an extrusion ring (12) is fixedly connected to the inner circumference of the connecting ring (11), and one end of the plurality of extrusion rods (10) away from the support frame (3) is fixedly connected to a side of the extrusion ring (12) away from the fixed cover (1), wherein the pump body portion is located between the fixed cover (1) and the extrusion ring (12).
5. The high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining according to claim 4 is characterized in that: in: The connecting ring (11) is elastic, wherein the extrusion ring (12) abuts against the pump body during operation.
6. The high-voltage motor end cover of a flameproof submersible sand removal electric pump for mining according to claim 1 is characterized in that: in: A separation spring (13) is fixedly connected to the top end of the threaded groove (5), and a rotating block (14) is fixedly connected to one end of the separation spring (13) away from the threaded groove (5). The rotating block (14) is coaxially rotatably connected to the top end of the support bolt (6).