Super-large high-pressure piston type cone valve industrial pump

Abstract

The utility model discloses an ultra-large square high pressure piston type cone valve industrial pump which comprises a hydraulic power station, a valve group assembly and a pumping device, the hydraulic power station comprises a base A, the base A is provided with an oil tank and at least two motor oil pump groups which are arranged in a double-layer mode, and each oil pump group comprises a main oil pump and a constant pressure oil pump; the pumping device comprises a rack, at least two main oil cylinders are arranged on the rack, one end of each main oil cylinder is communicated with a conveying cylinder, and a cone valve mechanism is arranged at the end, away from the main oil cylinders, of the conveying cylinder. A main valve group of the valve group assembly is respectively communicated with a main oil pump and a main oil cylinder through oil pipes, and a distribution valve group is respectively communicated with a constant-pressure oil pump and a cone valve mechanism through oil pipes. Hydraulic oil pumped out by the hydraulic power station drives the pumping device to suck and output materials through the valve group assembly. According to the ultra-large square high-pressure piston type cone valve industrial pump, a split type design mode is adopted, the conveying capacity is large, the outlet pressure is high, and carrying and maintaining are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic grouting pumps, in particular to an ultra-large square high-pressure piston type cone valve industrial pump. Background Art

[0002] As the country has greatly strengthened its efforts in environmental protection, the production requirements for existing metal mines and other enterprises have become increasingly stringent. In order to avoid risks such as excessive pollution of the mining area and collapse of the goaf, most companies now use solid waste such as mine tailings, crushed stone, fly ash, industrial slag, etc. to make a paste-like slurry that does not require dehydration, and then continuously transport it to the underground goaf for filling through a cone valve filling industrial pump. This can not only improve the resource extraction rate, but also reduce land occupation and pollution to the environment.

[0003] With the widespread application of filling industrial pumps in the mining field, the requirements for the pumping volume and conveying distance of existing filling industrial pumps are getting higher and higher according to the annual output of different mines. The characteristics of large-volume and high-pressure industrial pumps, such as larger space occupation, more complex structure, and more inconvenient maintenance and transportation, are in great conflict with the high requirements for operational flexibility in the field of mine filling. Therefore, an ultra-large-volume and high-pressure piston cone valve industrial pump is developed. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides an ultra-large high-pressure piston type cone valve industrial pump.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The ultra-large square high-pressure piston cone valve industrial pump comprises a hydraulic power station (1), a valve group assembly (2) and a pumping device (3), wherein the hydraulic power station (1) comprises an A base (4), wherein an oil tank (5) and at least two groups of motor oil pump groups arranged in double layers are arranged on the A base (4), wherein each group of the motor oil pump groups comprises a motor (6), wherein the motor (6) is connected to and drives at least two groups of oil pump groups through a speed increasing transfer case (7), wherein the oil pump groups are connected to the oil tank (5) through oil pipes, and wherein the oil pump groups comprise a main oil pump and a constant pressure oil pump; wherein the pumping device (3) comprises a frame (8), wherein the frame (8 ) is provided with at least two master oil cylinders (9), one end of the master oil cylinder (9) is connected to the delivery cylinder (10), and the end of the delivery cylinder (10) away from the master oil cylinder (9) is provided with a cone valve mechanism (11); the valve group assembly (2) comprises a B base (12), the B base (12) is provided with a main valve group (13) and a distribution valve group (14), the main valve group (13) is connected to the main oil pump and the master oil cylinder (9) respectively through oil pipes, the distribution valve group (14) is connected to the constant pressure oil pump and the cone valve mechanism (11) respectively through oil pipes, and the B base (12) is also provided with a water cooling radiator (15).

[0007] Preferably, the motor oil pump groups are four groups and arranged in double layers.

[0008] Preferably, the motor (6) is connected to and drives two oil pump groups through a speed-increasing transfer case (7), the oil pump group further comprising a gear oil pump, and the main oil pump, the constant pressure oil pump, and the gear oil pump are sequentially connected in series and connected to the output end of the speed-increasing transfer case (7).

[0009] Preferably, the main oil pump is composed of a 260 oil pump and a 190 oil pump connected in series, the constant pressure oil pump is a 45 oil pump, and the gear oil pump is a 22 oil pump.

[0010] Preferably, the main oil pump is connected to the oil tank (5) via an oil suction self-sealing device (16).

[0011] Preferably, the main valve group (13) comprises two valve groups with a diameter of 82 connected in parallel, and an oil return accumulator (17) is provided on the valve group.

[0012] Preferably, a reversing valve is provided on the distribution valve group (14), and a plurality of accumulators connected in series are provided on the oil inlet of the reversing valve.

[0013] Preferably, the cone valve mechanism (11) comprises a suction valve (18) with a working chamber, the suction valve (18) is provided with a feed port (19), the suction end of the suction valve (18) is communicated with the conveying cylinder (10), the discharge end of the suction valve (18) is connected to a lift valve (20) with a working chamber, the lift valve (20) is provided with a discharge port (26); the suction valve (18) is provided with an A suction cone valve (27) and a B suction cone valve (28) extending into the working chamber, the lift valve (20) is provided with an A pressure cone valve (29) and a B pressure cone valve (30) extending into the working chamber; the A working port of the distribution valve group (14) is respectively communicated with the control oil ports of the A suction cone valve (27) and the B pressure cone valve (30), and the B working port of the distribution valve group (14) is respectively communicated with the control oil ports of the B suction cone valve (28) and the A pressure cone valve (29).

[0014] Preferably, a water tank (24) is provided between the main oil cylinder and the delivery oil cylinder.

[0015] Preferably, an oil drain ball valve (21) is provided at the bottom of the oil tank (5), and a guardrail (22) and a ladder (23) are provided on the oil tank (5).

[0016] Preferably, a double lubrication point structure is provided on the delivery cylinder (3).

[0017] Preferably, each oil pump control oil port is provided with a high-pressure filter, and the oil tank (5) is provided with an oil return filter (25).

[0018] Preferably, the super-large square high-pressure piston cone valve industrial pump also includes a circulating filter oil circuit, and a high-pressure filter is provided on the circulating filter oil circuit.

[0019] The utility model is further described below:

[0020] The utility model's ultra-large square high-pressure piston cone valve industrial pump is mainly composed of a hydraulic power station, a pumping device, a valve assembly and an intermediate connecting pipeline. The hydraulic oil pumped out by the motor oil pump group of the hydraulic power station drives the pumping device to suck in and output materials. The power station is mainly composed of an oil tank, an oil pump, a motor, a speed increaser, and pipelines. The system uses 4 800KW motors to drive 8 groups of 260 oil pumps + 190 oil pumps + 45 oil pumps through a speed increaser transfer box (speed increase ratio of 1:0.82). The oil at the outlet of the oil pump is transported to the pumping system after confluence at the power station. The power station adopts the design concept of two layers stacked up and down, and the overall space is small. The oil flow required by the whole machine is relatively large. The oil pump adopts the form of split speed increase in the overall design to increase the oil pump's flow output by increasing the speed of the oil pump. Considering that a single oil pump's single suction pipe takes up a large space, two oil pumps share a self-sealing device to absorb oil. The oil tank has a large volume, and considering maintenance and other issues, a guardrail is designed at the bottom of the oil tank, a ladder is added to the side of the oil tank, and an oil drain port is added at the bottom. In order to ensure the cleanliness of the hydraulic system, a high-pressure filter device is connected in series at the oil pump control port, and a long-term circulation filtration is performed in the whole system at 240L / min to ensure the cleanliness of the oil in the whole system.

[0021] The pumping system is mainly composed of the main oil cylinder, lifting valve, pressure valve and suction valve device, pumping chassis, etc. The cross-sectional area of ​​the overall delivery piston is large. In order to achieve a good lubrication effect, this solution adopts a single delivery cylinder with hydraulic oil double lubrication points for lubrication. The valve group and the intermediate connecting pipe are mainly composed of a large-diameter hydraulic valve group, a water cooler and various hydraulic hoses of different specifications. The main valve group and the distribution valve are composed of an integrated valve block. All pipelines are drilled inside the valve block, and the valve block is equipped with a pump valve element. It is mainly used to transmit the oil flow and change the direction of the oil flow. Due to the large flow rate of this model, two 82-diameter valve groups are connected in parallel, and an accumulator is added to the return oil port to prevent the return oil pressure from being too high instantly. Compared with the air-cooled radiator for heat dissipation, the whole machine has a large noise and occupies a huge space, so the water-cooled radiator is used for heat dissipation in this solution.

[0022] The ultra-large high-pressure piston cone valve industrial pump takes into account the need to meet the volume while occupying a small space. Therefore, when designing the hydraulic power station, the 4 groups of motor oil pump groups are designed in a two-layer stacking mode. The oil tank return oil filter adopts a stepped layout mode, and adopts a transfer speed increaser drive mode. Four 800KW motors are used as the main power drive source. Each motor drives four main oil pumps through a transfer speed increaser. The main oil pump (260 pump + 190 pump) of the motor oil pump group sucks oil from the oil tank self-sealing device through the oil pump high-pressure oil outlet and simultaneously delivers oil flow to the high-pressure oil pipe. After converging through the high-pressure oil pipe, it enters the valve group and then is delivered to the pumping device; the 4 groups of oil pumps of the motor oil pump group, the constant pressure pump and gear pump (45 pump + 22 pump) suck oil from the oil tank, pass through the converging flow, and then enter the pumping device through the reversing valve group. The system is also designed to circulate and filter through the high-pressure filter to maintain the cleanliness of the system. A temperature sensor is installed on the oil tank. When the temperature of the system reaches a certain set value, the radiator automatically starts and stops to maintain the oil temperature of the system.

[0023] The pipelines, oil cylinders, delivery cylinders, water tanks, etc. of the pumping hydraulic system are mainly installed on the frame. The oil source delivered by the main system of the hydraulic power station enters the main valve group, and then the main oil cylinder's forward and backward functions are realized through the reversal of the main valve group; the oil source of the power station distribution system is delivered to the distribution reversing valve of the pumping system, and the reversal of the cone valve is realized through the reversal of the reversing valve. When reversing, there are 3 20L accumulators in series at the P port position of the reversing valve, so the constant pressure pump generally only charges the accumulator. When reversing, it is mainly through the instantaneous release of pressure from the accumulator to complete the reversal of the cone valve. The switching of the cone valve and the main oil cylinder is controlled by the program to realize the forward and reverse pumping of the material. When the cone valve mechanism is working, the diagonal pressure valve and the suction valve are a pair, and the two valves work alternately during operation, thereby realizing suction and pumping.

[0024] In order to facilitate the replacement of wearing parts such as pistons, the system is equipped with an electric switch button next to the water tank, which enables on-site operation, greatly improving replacement efficiency and reducing labor intensity.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The piston cone valve industrial pump of the utility model has the characteristics of large conveying volume (500 cubic meters / hour) and high outlet pressure (16MPa); it adopts a split design, which has obvious advantages in maintenance and transportation, especially in the mining field, and has better adaptability; the upper and lower layers of the hydraulic power station are stacked, the whole machine occupies a small space and has a large oil flow; the assembly structure in which the pump valve group and the water cooling device are integrated together is reasonably designed and has better heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic diagram of the structure of the ultra-large square high-pressure piston cone valve industrial pump of the utility model;

[0028] Figure 2 This is a structural schematic diagram of the hydraulic power station of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the pumping device of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the valve group assembly of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the cone valve mechanism of the utility model;

[0032] Figure 6 This is a structural front view of the cone valve mechanism of the utility model;

[0033] Figure 7 It is a BB sectional view of the cone valve mechanism of the utility model;

[0034] Figure 8 It is an AA cross-sectional view of the cone valve mechanism of the utility model.

[0035] In the figure: 1. Hydraulic power station; 2. Valve group assembly; 3. Pumping device; 4. Base A; 5. Oil tank; 6. Motor; 7. Speed ​​increase transfer case; 8. Frame; 9. Main oil cylinder; 10. Delivery cylinder; 11. Cone valve mechanism; 12. Base B; 13. Main valve group; 14. Distribution valve group; 15. Water cooling radiator; 16. Oil suction self-sealing device; 17. Oil return accumulator; 18. Suction valve; 19. Feed inlet; 20. Lifting valve; 21. Oil drain ball valve; 22. Guardrail; 23. Ladder; 24. Water tank; 25. Oil return filter; 26. Discharge port; 27. Suction cone valve A; 28. Suction cone valve B; 29. ​​Pressure cone valve A; 30. Pressure cone valve B. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0037] See also Figures 1 to 4The super-large square high-pressure piston cone valve industrial pump includes a hydraulic power station 1, a valve group assembly 2 and a pumping device 3. The hydraulic power station 1 includes an A base 4, and the A base 4 is provided with an oil tank 5 and at least two groups of double-layer motor oil pump groups. Each group of the motor oil pump group includes a motor 6, and the motor 6 is connected and drives at least two groups of oil pump groups through a speed increase transfer case 7. The oil pump group is connected to the oil tank 5 through an oil pipe. The oil pump group includes a main oil pump and a constant pressure oil pump; the pumping device 3 includes a frame 8, At least two master oil cylinders 9 are provided on the frame 8, one end of the master oil cylinder 9 is connected with the delivery cylinder 10, and the end of the delivery cylinder 10 away from the master oil cylinder 9 is provided with a cone valve mechanism 11; the valve group assembly 2 includes a B base 12, and the B base 12 is provided with a main valve group 13 and a distribution valve group 14, the main valve group 13 is connected with the main oil pump and the master oil cylinder 9 respectively through oil pipes, and the distribution valve group 14 is connected with the constant pressure oil pump and the cone valve mechanism 11 respectively through oil pipes, and a water-cooled radiator 15 is also provided on the B base 12.

[0038] Among them, the motor oil pump group is four groups and arranged in double layers. The motor 6 is connected to and drives two groups of oil pump groups through the speed increasing transfer case 7. The oil pump group also includes a gear oil pump. The main oil pump, constant pressure oil pump, and gear oil pump are connected in series in sequence and connected to the output end of the speed increasing transfer case 7. The main oil pump is composed of a 260 oil pump and a 190 oil pump in series. The constant pressure oil pump is a 45 oil pump, and the gear oil pump is a 22 oil pump. The main oil pump is connected to the oil tank 5 through an oil suction self-sealing device 16. The main valve group 13 includes two 82-diameter valve groups connected in parallel, and an oil return accumulator 17 is provided on the valve group. A reversing valve is provided on the distribution valve group 14, and a plurality of accumulators connected in series are provided on the oil inlet of the reversing valve. The cone valve mechanism 11 comprises a suction valve 18 with a working chamber, the suction valve 18 is provided with a feed port 19, the suction end of the suction valve 18 is connected to the delivery cylinder 10, the discharge end of the suction valve 18 is connected to a lift valve 20 with a working chamber, the lift valve 20 is provided with a discharge port 26; the suction valve 18 is provided with an A suction cone valve 27 and a B suction cone valve 28 extending into the working chamber, the lift valve 20 is provided with an A pressure cone valve (29) and a B pressure cone valve (30) extending into the working chamber; the A working port of the distribution valve group 14 is respectively connected to the control oil ports of the A suction cone valve 27 and the B pressure cone valve 30, and the B working port of the distribution valve group 14 is respectively connected to the control oil ports of the B suction cone valve 28 and the A pressure cone valve 29. A water tank 24 is provided between the main oil cylinder and the delivery oil cylinder. A drain ball valve 21 is provided at the bottom of the oil tank 5, and a guardrail 22 and a ladder 23 are provided on the oil tank 5.

Claims

1. An ultra-large high-pressure piston cone valve industrial pump, characterized in that: The ultra-large square high-pressure piston cone valve industrial pump comprises a hydraulic power station (1), a valve group assembly (2) and a pumping device (3), wherein the hydraulic power station (1) comprises an A base (4), wherein an oil tank (5) and at least two groups of motor oil pump groups arranged in double layers are arranged on the A base (4), wherein each group of the motor oil pump groups comprises a motor (6), wherein the motor (6) is connected to and drives at least two groups of oil pump groups through a speed increasing transfer case (7), wherein the oil pump groups are connected to the oil tank (5) through oil pipes, and wherein the oil pump groups comprise a main oil pump and a constant pressure oil pump; wherein the pumping device (3) comprises a frame (8), wherein the frame (8 ) is provided with at least two master oil cylinders (9), one end of the master oil cylinder (9) is connected to the delivery cylinder (10), and the end of the delivery cylinder (10) away from the master oil cylinder (9) is provided with a cone valve mechanism (11); the valve group assembly (2) comprises a B base (12), the B base (12) is provided with a main valve group (13) and a distribution valve group (14), the main valve group (13) is connected to the main oil pump and the master oil cylinder (9) respectively through oil pipes, the distribution valve group (14) is connected to the constant pressure oil pump and the cone valve mechanism (11) respectively through oil pipes, and the B base (12) is also provided with a water cooling radiator (15).

2. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: The motor oil pump groups are four groups and arranged in double layers.

3. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: The motor (6) is connected to and drives two oil pump groups through a speed-increasing transfer case (7), wherein the oil pump group further comprises a gear oil pump, and the main oil pump, the constant pressure oil pump, and the gear oil pump are sequentially connected in series and connected to the output end of the speed-increasing transfer case (7).

4. The ultra-large square high-pressure piston cone valve industrial pump according to claim 3 is characterized in that: The main oil pump is composed of a 260 oil pump and a 190 oil pump connected in series, the constant pressure oil pump is a 45 oil pump, and the gear oil pump is a 22 oil pump.

5. The ultra-large square high-pressure piston cone valve industrial pump according to claim 4, characterized in that: The main oil pump is connected to the oil tank (5) via an oil suction self-sealing device (16).

6. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: The main valve group (13) comprises two valve groups with a diameter of 82 connected in parallel, and an oil return accumulator (17) is provided on the valve group.

7. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: The distribution valve group (14) is provided with a reversing valve, and the oil inlet of the reversing valve is provided with a plurality of accumulators connected in series.

8. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: The cone valve mechanism (11) comprises a suction valve (18) with a working chamber, the suction valve (18) being provided with a feed port (19), the suction end of the suction valve (18) being communicated with the conveying cylinder (10), the discharge end of the suction valve (18) being connected with a lift valve (20) with a working chamber, the lift valve (20) being provided with a discharge port (26); the suction valve (18) being provided with an A suction cone valve (27) and a B suction cone valve (28) extending into the working chamber, the lift valve (20) being provided with an A pressure cone valve (29) and a B pressure cone valve (30) extending into the working chamber; the A working port of the distribution valve group (14) being communicated with the control oil ports of the A suction cone valve (27) and the B pressure cone valve (30), respectively, and the B working port of the distribution valve group (14) being communicated with the control oil ports of the B suction cone valve (28) and the A pressure cone valve (29), respectively.

9. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1 or 8, characterized in that: A water tank (24) is provided between the main oil cylinder and the delivery oil cylinder.

10. The ultra-large square high-pressure piston cone valve industrial pump according to claim 1, characterized in that: An oil drain ball valve (21) is provided at the bottom of the oil tank (5), and a guardrail (22) and a ladder (23) are provided on the oil tank (5).

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