An emulsion pump circuit mechanism and emulsion pump station

Abstract

The application discloses an emulsion pump circuit mechanism and an emulsion pump station with better sealing property and stability. The technical scheme comprises a bottom support mechanism, a liquid return main pipe and a liquid supply main pipe arranged on both sides of the bottom support mechanism, a metal hard pipe connected to the liquid supply main pipe, a rubber hose connected to the front end of the metal hard pipe, and a connecting assembly arranged at both ends of the rubber hose. The connecting assembly comprises a joint, a flange arranged at the front end of the joint, and a fastening and sealing integrated part arranged at the middle part of the joint. The front end of the joint is provided with a first flange for fixing the flange, the middle part is provided with a second flange for fixing the fastening and sealing integrated part, and the rear end is provided with a retreat-stop tooth. The fastening and sealing integrated part comprises a sheath sleeved on the front end of the rubber hose and a connecting plate arranged at the front end of the sheath. The connecting plate is connected to the second flange through a group of first bolts. The rear end of the sheath is provided with an axially extending first slot on both sides.

Description

Technical Field

[0001] The invention relates to a mining equipment, and more particularly to an emulsion pump station. Background Technology

[0002] An emulsion pump station is a power device used to supply pressurized fluid to hydraulic supports in fully mechanized mining operations or individual hydraulic props in conventional mining faces. It mainly consists of an emulsion tank, an emulsion pump station, and a hydraulic control system. The emulsion pump station is a key support device in mechanized coal mining, playing a vital role in ensuring coal mine production safety and improving operational efficiency. The structure of the emulsion pump station consists of an emulsion pump and an emulsion pump circuit mechanism connected to it. The emulsion pump circuit mechanism includes a base support mechanism and a return main pipe and a supply main pipe located on both sides of the base support mechanism. A metal rigid pipe and a rubber hose connected to the front end of the metal rigid pipe are sequentially connected to the supply main pipe. The two ends of the rubber hose are connected to the metal rigid pipe and the emulsion pump respectively through connecting components. The disadvantages are: 1. Due to the very high pressure in the supply pipe during operation, and the high-frequency vibration generated by the emulsion pump, the traditional rubber hose is only fixed at both ends by clamps, which can easily lead to leakage of the rubber hose. In severe cases, the rubber hose may completely fall off, resulting in a safety accident; 2. Due to the high-frequency vibration of the emulsion pump, the bolts on the split flange connected to the emulsion pump are easy to loosen, and the assembly of the traditional split flange is relatively inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the invention is to provide a liquid pump circuit mechanism and emulsion pump station with better sealing and stability.

[0004] To solve the above problems, the technical solution adopted by the invention includes: a base support mechanism and a return main pipe and a supply main pipe respectively provided on both sides of the base support mechanism. The supply main pipe is connected to a metal rigid pipe and a rubber hose connected to the front end of the metal rigid pipe. The rubber hose is provided with connecting components at both ends. The connecting component is characterized in that: the connecting component includes a connector, a flange provided at the front end of the connector, and a fastening and sealing integrated component provided in the middle of the connector. The front end of the connector is provided with a first flange for fixing the flange, the middle part is provided with a second flange for fixing the fastening and sealing integrated component, and the rear end is provided with a backstop tooth. The fastening and sealing integrated component includes a sheath fitted on the front end of the rubber hose and a connecting plate provided at the front end of the sheath. The connecting plate is connected to the second flange by a set of first bolts. The rear end of the sheath is provided with axially extending first slots on both sides, and the two ends of the first slots are bent outward to form clamps. A second bolt is provided between the clamps.

[0005] The emulsion pump circuit mechanism is characterized in that: the connector is provided with an annular sealing groove near the second flange, and the inner wall of the rubber hose is provided with a sealing ring embedded in the annular sealing groove.

[0006] The emulsion pump circuit mechanism is characterized in that: the sealing ring is integrally injection molded on the inner wall of the rubber hose and has an internal air storage chamber; the rubber hose is provided with a one-way valve nozzle that communicates with the air storage chamber; when the air storage chamber is filled with air, the outer surface of the sealing ring is embedded in the annular sealing groove.

[0007] The emulsion pump circuit mechanism is characterized in that: the air nozzle extends from the sheath and is fastened by a nut.

[0008] The emulsion pump circuit mechanism is characterized in that: the flange is composed of a first flange and a second flange, both sides of the first flange and the second flange are provided with screws, and a tension spring is hung between adjacent screws; the first flange and the second flange are provided with a second slot for the tension spring to be hung into the screw.

[0009] The emulsion pump circuit mechanism is characterized in that: hooks are provided at both ends of the tension spring, a positioning protrusion is provided below the apex of the hook, and a positioning groove is provided on the screw to cooperate with the positioning protrusion. When the screw is tightened, the positioning protrusion is embedded in the positioning groove.

[0010] The emulsion pump circuit mechanism is characterized in that: a sealing ring is provided at the front end of the first flange.

[0011] The emulsion pump circuit mechanism is characterized in that: both ends of the return main pipe and the supply main pipe are provided with pipe clamps, and the inner wall of the pipe clamp is provided with an air bladder.

[0012] An emulsion pump station includes an emulsion pump, characterized in that: the emulsion pump is equipped with an emulsion pump circuit mechanism as described in any one of the above claims.

[0013] The advantages of the invented liquid pump circuit mechanism and emulsion pump station are as follows: 1. The rubber hose is connected and sealed by a fastening and sealing integrated component, which has the advantages of good sealing performance and is not easy to fall off; 2. By setting a tension spring between the screws of the split flange, the split flange can be fixed on the joint for easy assembly, and after the screw is tightened, the positioning protrusion on the tension spring is embedded in the positioning groove of the screw, which can effectively prevent the screw from loosening.

[0014] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the chemical liquid pump circuit mechanism.

[0016] Figure 2 This is a structural schematic diagram of the invention of the rubber hose and connecting components;

[0017] Figure 3 This is a structural schematic diagram of the invention's integrated fastening and sealing component;

[0018] Figure 4 yes Figure 2 Sectional view along axis AA;

[0019] Figure 5 yes Figure 2 BB-direction sectional view;

[0020] Figure 6 This is a structural schematic diagram of the invention of the split flange;

[0021] Figure 7 This is a structural schematic diagram of the pipe clamp invention;

[0022] Figure 8 This is a structural schematic diagram of the invention of the emulsion pump station.

[0023] The components include: 1. Base support mechanism; 2. Return main pipe; 3. Supply main pipe; 4. Metal rigid pipe; 5. Rubber hose; 6. Connecting assembly; 7. Joint; 8. Flange; 9. Fastening and sealing integrated component; 10. First flange; 11. Second flange; 12. Anti-reverse tooth; 13. Sheath; 14. Connecting plate; 15. First bolt; 16. First slot; 17. Clamping plate; 18. Second bolt; 19. Annular sealing groove; 20. Sealing ring; 21. Air storage chamber; 22. One-way valve nozzle; 23. Nut; 801. First flange; 802. Second flange; 24. Second slot; 25. Screw; 26. Tension spring; 27. Hook; 28. Positioning protrusion; 29. ​​Positioning groove; 30. Sealing ring; 31. Pipe clamp; 32. Airbag; 33. Emulsion pump; a. Emulsion pump circuit mechanism. Detailed Implementation Example 1:

[0024] Reference Figure 1-7As shown, the emulsion pump circuit mechanism of the invention includes a base support mechanism 1 and a return main pipe 2 and a supply main pipe 3 respectively located on both sides of the base support mechanism 1. A metal rigid pipe 4 and a rubber hose 5 connected to the front end of the metal rigid pipe 4 are connected to the supply main pipe 3. The metal rigid pipe 4 is typically a stainless steel water pipe. Connecting components 6 are provided at both ends of the rubber hose 5. The connecting component 6 includes a connector 7, a flange 8 located at the front end of the connector 7, and a fastening and sealing integrated component 9 located in the middle of the connector 7. A first flange 10 for fixing the flange 8 is provided at the front end of the connector 7, a second flange 11 for fixing the fastening and sealing integrated component 9 is provided in the middle of the connector 7, and a retaining tooth 12 is provided at the rear end of the connector 7. The fastening and sealing integrated component 9 includes a sheath 13 fitted onto the front end of the rubber hose 5 and a connecting plate 14 located at the front end of the sheath 13. The connecting plate 14 and the sheath 13 are seamlessly welded together. The connecting plate 14 is connected to the second flange 11 by first bolts 15 at its four corners. The sheath 13 has axially extending first slots 16 on both sides of its rear end, and the two ends of the first slots 16 are bent outward to form clamping plates 17. A second bolt 18 is provided between the clamping plates 17. By tightening the second bolt 18, the rear end of the sheath 13 can be clamped to the rubber hose 5 to serve as a clamping device.

[0025] Preferably, the connector 7 has an annular sealing groove 19 near the second flange 11, and the inner wall of the rubber hose 5 has a sealing ring 20 embedded in the annular sealing groove 19. This further improves the sealing performance and prevents the rubber hose 5 from falling off. The sealing ring 20 can be integrally formed with the inner wall of the rubber hose 5 or separately provided. Integral forming provides a more ideal sealing effect than separate forming.

[0026] Preferably, the sealing ring 20 is integrally injection molded onto the inner wall of the rubber hose 5, and the sealing ring 20 has an air storage chamber 21 inside. The rubber hose 5 is provided with a one-way valve nozzle 22 communicating with the air storage chamber 21. When the air storage chamber 21 is inflated, the outer surface of the sealing ring 20 is embedded in the annular sealing groove 19. Because the solid sealing ring 20 is difficult to insert into the connector 7 during assembly, it causes inconvenience. However, the inflatable sealing ring 20, which is flat before inflation, can be easily inserted into the connector 7, and different air pressures can be used to meet different sealing level requirements. The one-way valve nozzle 22 is a known technology; for example, it can adopt the valve structure found on automobile tires.

[0027] Preferably, the air nozzle 22 extends from the protective sleeve 13 and is fastened to the protective sleeve 13 by a nut 23 to fix the air nozzle 22 so as to facilitate inflation.

[0028] Preferably, the flange 8 consists of a first flange 801 and a second flange 802. Both sides of the first flange 801 and the second flange 802 are provided with screws 25, and tension springs 26 are connected between adjacent screws 25. The first flange 801 and the second flange 802 are provided with second slots 24 for the tension springs 26 to engage with the screws 25. Since the connector 7 has a first flange 10 and a second flange 11, an integral flange cannot be installed; therefore, a split flange is used. However, assembling a split flange requires two people: one to hold the flange and the rubber hose, and the other to tighten the screws, which is inconvenient. With the tension springs 26, the first flange 801 and the second flange 802 can be fixed to the connector 7, facilitating assembly.

[0029] Preferably, the tension spring 26 has hooks 27 at both ends, and a positioning protrusion 28 is provided below the apex of the hook 27. The screw 25 has a positioning groove 29 that mates with the positioning protrusion 28. When the screw 25 is tightened to the optimal position, the positioning protrusion 28 automatically engages in the positioning groove 29 to position the screw 25 and also to help the user determine whether the screw 25 is tightened to the optimal position. To ensure that the positioning protrusion 28 can be accurately engaged in the positioning groove 29, the optimal tightening position of the screw 25 needs to be tested before leaving the factory, and the width of the second slot 24 should be the same as that of the tension spring 26 to ensure that the positioning protrusion 28 can be fixed in the same position.

[0030] Preferably, the front end of the first flange 10 is provided with a sealing ring 30 to achieve interface sealing at the connection with the emulsion pump.

[0031] Preferably, the return main pipe 2 and the supply main pipe 3 are provided with pipe clamps 31 at both ends for fixing the return main pipe 2 and the supply main pipe 3. The inner wall of the pipe clamp 31 is provided with an air bladder 32, which can buffer the return main pipe 2 and the supply main pipe 3 to reduce vibration and thus effectively prevent the joints at both ends of the return main pipe 2 and the supply main pipe 3 from loosening. Example 2:

[0032] Reference Figure 8 As shown, an emulsion pump station of the invention includes an emulsion pump 33, on which the emulsion pump circuit mechanism a described in Embodiment 1 is installed. Specifically, the rubber hose 5 is connected to the pump port of the emulsion pump 33 through the first flange 801 and the second flange 802.

[0033] As stated above, this is not intended to limit the invention in any way. Although the invention has been disclosed above with preferred embodiments, it is not intended to limit the invention. Any person skilled in the art may make some modifications or alterations to the disclosed structure and technical content to create equivalent embodiments without departing from the scope of the invention. However, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the invention without departing from the content of the invention shall still fall within the scope of the invention.

Claims

1. An emulsion pump circuit mechanism, comprising a base support mechanism (1) and a return main pipe (2) and a supply main pipe (3) respectively disposed on both sides of the base support mechanism (1), wherein a metal rigid pipe (4) and a rubber hose (5) connected to the front end of the metal rigid pipe (4) are respectively provided on the supply main pipe (3), and connecting components (6) are respectively provided at both ends of the rubber hose (5), characterized in that: The connecting assembly (6) includes a connector (7), a flange (8) at the front end of the connector (7), and a fastening and sealing integral component (9) at the middle of the connector (7). The connector (7) has a first flange (10) at the front end for fixing the flange (8), a second flange (11) at the middle for fixing the fastening and sealing integral component (9), and a backstop tooth (12) at the rear end. The fastening and sealing integral component (9) includes a sheath (13) fitted onto the front end of the rubber hose (5) and a connecting plate (14) at the front end of the sheath (13). The connecting plate (14) is connected to the second flange (11) by a set of first bolts (15). The sheath (13) has axially extending first slots (16) on both sides at the rear end, and the two ends of the first slots (16) are bent outward to form clamps (17). A second bolt (18) is provided between the clamps (17). The connector (7) is provided with an annular sealing groove (19) near the second flange (11), and the inner wall of the rubber hose (5) is provided with a sealing ring (20) embedded in the annular sealing groove (19); the sealing ring (20) is integrally formed on the inner wall of the rubber hose (5) and is provided with an air storage chamber (21) inside; the rubber hose (5) is provided with a one-way valve nozzle (22) communicating with the air storage chamber (21); when the air storage chamber (21) is filled with air, the outer surface of the sealing ring (20) is embedded in the annular sealing groove (19); the nozzle (22) extends out from the sheath (13) and is fastened by a nut (23).

2. The emulsion pump circuit mechanism according to claim 1, characterized in that: The flange (8) is composed of a first flange (801) and a second flange (802). Both sides of the first flange (801) and the second flange (802) are provided with screws (25). A tension spring (26) is attached between adjacent screws (25). The first flange (801) and the second flange (802) are provided with a second slot (24) for the tension spring (26) to be attached to the screw (25).

3. The emulsion pump circuit mechanism according to claim 2, characterized in that: The tension spring (26) has hooks (27) at both ends. A positioning protrusion (28) is provided below the apex of the hook (27). The screw (25) has a positioning groove (29) that cooperates with the positioning protrusion (28). When the screw (25) is tightened, the positioning protrusion (28) is embedded in the positioning groove (29).

4. The emulsion pump circuit mechanism according to claim 1, characterized in that: The front end of the first flange (10) is provided with a sealing ring (30).

5. The emulsion pump circuit mechanism according to claim 1, characterized in that: The return main pipe (2) and the supply main pipe (3) are provided with pipe clamps (31) at both ends, and the inner wall of the pipe clamps (31) is provided with airbags (32).

6. An emulsion pump station, comprising an emulsion pump (33), characterized in that: The emulsion pump (33) is equipped with an emulsion pump circuit mechanism (a) as described in any one of claims 1-5.

Images