Pump station system and coal mining machine

Abstract

The invention relates to the technical field of mining equipment, and provides a pump station system and a coal mining machine. According to the pump station system provided by the invention, on the premise that the pump station system is not changed, the problem of insufficient flow on a single path in the first path and the second path can be solved through the confluence assembly under the condition that the confluence assembly promotes the first path and the second path to converge; under the condition that the first path and the second path are promoted to be shunted, mutual non-interference between the first path and the second path is ensured, and independent maintenance such as component replacement can be conveniently carried out on each path.

Description

Technical Field

[0001] This application relates to the technical field of mining equipment, and particularly to a pumping station system and a shearer. Background Art

[0002] The pumping station structure of a continuous miner usually adopts a double-variable pump. However, the double-variable pump cannot operate at the maximum displacement simultaneously, and due to the limitations of the structure of the pumping station itself, it is impossible to set a larger-sized filter for the double-variable pump, which results in limited performance of the double-variable pump in the pumping station structure of the continuous miner. Summary of the Invention

[0003] In view of this, this application provides a pumping station system and a shearer, aiming to solve the above technical problems to a certain extent.

[0004] In the first aspect of this application, a pumping station system is provided. The pumping station system is used for a shearer, and the pumping station system includes:

[0005] An oil tank for storing oil.

[0006] A double-variable pump including a first oil suction port and a second oil suction port.

[0007] A first path and a second path. The first path connects the first oil suction port and the oil tank, and the second path connects the second oil suction port and the oil tank.

[0008] A confluence component. Both the first path and the second path pass through the confluence component, and the confluence component is configured to be able to split the first path and the second path, and to be able to confluence the first path and the second path.

[0009] Based on the above technical solutions, optionally, the pumping station system further includes a first filter and a second filter. The first filter is disposed on the first path and is located between the confluence component and the oil tank, and the second filter is disposed on the second path and is located between the confluence component and the oil tank.

[0010] Based on any of the above technical solutions, optionally, the oil tank has a receiving portion, and the first filter and the second filter are disposed in the receiving portion.

[0011] Based on any of the above technical solutions, optionally, the first filter is detachably disposed on the first path, and the second filter is detachably disposed on the second path.

[0012] Based on any of the above technical solutions, optionally, the first filter and the second filter are arranged side by side.

[0013] Based on any of the above technical solutions, optionally, the fuel tank has a receiving portion, and at least a part of the confluence assembly is disposed within the receiving portion.

[0014] Based on any of the above technical solutions, optionally, the pumping station system further includes a first filter and a second filter. The first filter is disposed on the first path and is located between the confluence assembly and the fuel tank, and the second filter is disposed on the second path and is located between the confluence assembly and the fuel tank;

[0015] Wherein, both the first filter and the second filter are disposed within the receiving portion.

[0016] Based on any of the above technical solutions, optionally, the confluence assembly includes:

[0017] A housing having an inner cavity. The inner cavity has a first chamber communicating with the first path and a second chamber communicating with the second path, and the inner cavity further has a passage communicating the first chamber and the second chamber;

[0018] A core body disposed within the inner cavity. The core body is capable of moving to seal the passage and open the passage.

[0019] Based on any of the above technical solutions, optionally, the confluence assembly further includes a limiting member disposed within the inner cavity. The core body abuts against the limiting member to be limited by the limiting member and seal the passage.

[0020] The second aspect of the present application provides a shearer, which includes the pumping station system as described above.

[0021] According to the pumping station system provided by the present application, without changing the pumping station system, through the confluence assembly, when the confluence assembly causes the first path and the second path to merge, the problem of insufficient flow rate in a single path among the first path and the second path can be solved. At the same time, when the first path and the second path are caused to diverge, it is ensured that there is no interference between the first path and the second path, which is convenient for performing individual maintenance such as replacing components on each path.

[0022] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 The schematic diagram shows a three-dimensional view of the pumping station system provided according to an embodiment of the present application.

[0025] Figure 2 The schematic diagram shows a cross-sectional view of the confluence component of the pumping station system provided according to an embodiment of the present application.

[0026] Reference numerals:

[0027] 100 - fuel tank; 200 - double variable pump; 210 - first variable pump; 220 - second variable pump; 300 - confluence component; 310 - valve cavity; 320 - rotary switch; 330 - retaining ring; 340 - valve stem; 350 - limiting rod; 360 - sealing ring; 400 - motor; 510 - first filter; 520 - second filter;

[0028] 610 - first oil suction flange; 620 - second oil suction flange; 630 - third oil suction flange; 640 - pump flange; 650 - coupling;

[0029] 710 - first oil suction pipe; 720 - second oil suction pipe; 730 - third oil suction pipe. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions of the present application in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0031] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0034] According to a first aspect of an embodiment of the present application, a pumping station system is provided. The following will be combined with Figure 1 and Figure 2 to specifically describe the structure and working principle of the pumping station system.

[0035] According to the pumping station system provided by the embodiment of the present application, the pumping station system is used for a shearer. The pumping station system includes an oil tank 100, a double-variable pump 200, a first path, a second path, and a confluence component 300.

[0036] In the embodiment, the oil tank 100 is used to store oil. The double-variable pump 200 includes a first oil suction port and a second oil suction port. In the embodiment, the first path communicates with the first oil suction port and the oil tank 100, and the second path communicates with the second oil suction port and the oil tank 100. Among them, both the first path and the second path pass through the confluence component 300, and the confluence component 300 is configured to be able to split the first path and the second path, and to be able to merge the first path and the second path.

[0037] Thus, according to the pumping station system provided by the embodiment of the present application, without changing the pumping station system, through the confluence component 300, when the confluence component 300 promotes the confluence of the first path and the second path, the problem of insufficient flow in a single path among the first path and the second path can be solved. At the same time, when the confluence component 300 promotes the splitting of the first path and the second path, it is ensured that there is no interference between the first path and the second path, which is convenient for performing individual maintenance such as replacing components on each path. In the embodiment, both the first path and the second path can be pipelines, that is, pipelines for oil circulation. As an example, the confluence component 300 can be, for example, a valve component. The structure and working principle of the confluence component 300 will be specifically described later.

[0038] In the embodiment, the double-variable pump 200 has oil ports respectively communicating with the first path and the second path.

[0039] According to the pumping station system provided by the embodiments of the present application, the pumping station system may further include a first filter 510 and a second filter 520. The first filter 510 may be disposed on the first path and may be located between the confluence component 300 and the fuel tank 100. The second filter 520 may be disposed on the second path and may be located between the confluence component 300 and the fuel tank 100.

[0040] In an embodiment, both the first filter 510 and the second filter 520 are used to filter the oil passing through them when the double-variable pump 200 extracts the oil in the fuel tank 100. Further, according to the pumping station system provided by the embodiments of the present application, when the first path and the second path are shunted, that is, when the confluence component closes the confluence channel, under this condition, for example, when the sealing cover of the first filter 510 is opened to replace the filter element of the first filter 510, the hydraulic oil in the second filter 520 will not enter the first filter 510 through the confluence component and flow out from the first filter 510. Therefore, it is possible to avoid the consequences of being unable to replace the filter element, loss of hydraulic oil, and environmental pollution.

[0041] According to the pumping station system provided by the embodiments of the present application, the fuel tank 100 may have a receiving portion, and the first filter 510 and the second filter 520 are disposed in the receiving portion. In this way, after the first filter 510 and the second filter 520 are disposed in the receiving portion, the overall space volume occupied by the pumping station system can be reduced. As an example, in an embodiment, the fuel tank 100 may be, for example, a cuboid-shaped box, and the receiving portion may be, for example, a recess provided at a corner of the box, and the recess may also be in the shape of a cuboid.

[0042] In an embodiment, the above-mentioned first filter 510 and second filter 520 may both be disposed in the receiving portion. Therefore, the first filter 510 and the second filter 520 do not occupy the external space of the fuel tank 100.

[0043] In addition, it can be understood that the two oil ports of the fuel tank 100 that are respectively connected to the first path and the second path are also opened inside the receiving portion of the fuel tank 100. The first filter 510 and the second filter 520 can be respectively connected to the corresponding oil ports via pipelines. In this way, the oil flowing out of the corresponding oil ports can flow into the corresponding filters through the corresponding pipelines and flow out from the outlets of the filters. In addition, it can be understood that pipelines may also be provided between the outlets of the filters and the double-variable pump 200, and the outlet of each filter is connected to the corresponding oil suction port on the double-variable pump 200 through the corresponding pipeline.

[0044] According to the pumping station system provided by the embodiments of the present application, the first filter 510 can be detachably arranged on the first path, and the second filter 520 can be detachably arranged on the second path. Thus, according to the pumping station system provided by the embodiments of the present application, both the first filter 510 and the second filter 520 are arranged in a detachable manner, so that they can be replaced accordingly after being used for a period of time or when a failure occurs, to ensure the stable operation of the pumping station system.

[0045] As an example, both the first filter 510 and the second filter 520 can be detachably connected, for example, by using a pipeline joint such as a threaded clamp.

[0046] According to the pumping station system provided by the embodiments of the present application, the first filter 510 and the second filter 520 are arranged side by side. Specifically, the first filter 510 and the second filter 520 can be arranged side by side in the accommodating part. In this way, the first filter 510 and the second filter 520 are adjacent to each other, which is convenient for the operator to view the first filter 510 and the second filter 520 at the same time, and is also convenient for the operator to compare the working states of the first filter 510 and the second filter 520 and perform maintenance.

[0047] According to the pumping station system provided by the embodiments of the present application, at least a part of the confluence assembly 300 can be arranged in the above-mentioned accommodating part. As an example, the confluence assembly 300 can be generally rectangular parallelepiped in shape, and at least a part of it can be accommodated in the accommodating part to reduce the external volume of the pumping station system. As an example, in some other examples, the confluence assembly 300 can be entirely arranged in the accommodating part. That is to say, in this example, the confluence assembly 300, the first filter 510, and the second filter 520 can all be arranged in the accommodating part.

[0048] In the embodiment, the confluence assembly 300 has four oil ports, which respectively correspond to the oil outlet of the first filter 510, one oil suction port of the double-variable pump 200, the oil outlet of the second filter 520, and the other oil suction port of the double-variable pump 200. As an example, the part of the confluence assembly 300 exposed outside the accommodating part can have two oil ports respectively corresponding to the two oil suction ports of the double-variable pump 200, which is convenient for connecting external pipelines.

[0049] According to the pumping station system provided by the embodiments of the present application, the confluence assembly 300 can include a housing. The housing has an inner cavity, and the inner cavity has a first cavity communicating with the first path and a second cavity communicating with the second path. The inner cavity also has a channel communicating the first cavity and the second cavity. The confluence assembly 300 can also include a core body, and the core body is arranged in the inner cavity. The core body can move to seal the channel and open the channel.

[0050] In an embodiment, the confluence component 300 can be formed as a substantially valve component, the inner cavity can be formed as a substantially valve cavity 310, and the four oil ports on the valve cavity 310 correspond to the four oil ports of the confluence component 300 as described above. The channel as described above can extend, for example, along the vertical direction to connect the first cavity and the second cavity. As an example, the valve component can have a rotary switch 320. For example, it has internal threads, and the core body, such as the valve stem 340, can have external threads adapted to the internal threads. The rotary switch 320 is threadedly connected to the valve stem 340. When the rotary switch 320 rotates, through threaded drive, the valve stem 340 is lifted or lowered, so as to seal the upper opening of the channel or remove it from the upper opening of the sealed channel.

[0051] In addition, according to the pumping station system provided by the embodiments of the present application, the confluence component 300 can further include a limiting member. The limiting member can be arranged in the inner cavity, and the core body can abut against the limiting member to be limited by the limiting member and seal the channel. In an embodiment, the limiting member can be, for example, a rod. The rod can be horizontally arranged in the channel and connected to the housing. A groove can be provided at the lower end of the valve stem 340. When the valve stem 340 descends, the groove on the valve stem 340 can be engaged with the rod, so that the rod stops the valve stem �40.

[0052] Based on the technical features described above, the implementation manner of the pumping station system will be specifically described below with reference to the drawings.

[0053] In an embodiment, the first filter 510 can be directly installed on the fuel tank 100. The oil inlet of the first filter 510, that is, the oil suction port, is inserted into the fuel tank to suck oil, and the first oil suction flange 610 can be detachably installed on the oil outlet of the first filter 510.

[0054] In an embodiment, the first oil suction flange 610 can be connected to the confluence component 300 through the first oil suction pipe 710, and the oil outlet of the second filter 520 can be directly docked to the confluence component 300. One oil outlet of the confluence component 300 is detachably connected to one oil suction port of the double-variable pump 200 through the second oil suction pipe 720 and the second oil suction flange 620, and the other oil outlet of the confluence component 300 is detachably connected to the other oil suction port of the double-variable pump 200 through the third oil suction pipe 730 and the third oil suction flange 630.

[0055] In an embodiment, the double-variable pump 200 includes a first variable pump 210 and a second variable pump 220 connected side by side with each other. The double-variable pump 200 is detachably connected to the housing of the motor 400 that drives the double-variable pump 200 through the pump flange 640, and the motor 400 can drive the double-variable pump 200 through the coupling 650.

[0056] In an embodiment, a retaining ring 330 is provided on the confluence assembly 300. The knob portion of the rotary switch 320 is exposed to the outside through the retaining ring 330 for the operator to turn. The retaining ring 330 limits the axial movement of the rotary switch 320, thereby prompting the rotary switch 320 to rotate and, in turn, drive the valve stem 340 to move axially. As described above, the lower end of the valve stem 340 is engaged with the limiting rod 350 and is thereby limited, thereby sealing the passage. The outside of the valve stem 340 and the outside of the rotary switch 320 can both be provided with a sealing ring 360. The sealing ring 360 on the outside of the valve stem 340 is interposed between the valve stem 340 and the inner wall of the valve cavity 310, and the sealing ring 360 on the outside of the rotary switch 320 is interposed between the rotary switch 320 and the valve cavity 310.

[0057] According to the coal mining machine provided in the embodiment of the present application, the coal mining machine includes the above-mentioned pump station system and also has the above-mentioned beneficial effects, which will not be repeated here.

[0058] The above are only preferred embodiments of the present application and do not limit the scope of protection of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A pumping station system, characterized in that, The pump station system is used for a shearer, and the pump station system includes: An oil tank for storing hydraulic fluid; A double-variable pump including a first oil suction port and a second oil suction port; A first path and a second path, the first path connecting the first oil suction port and the oil tank, and the second path connecting the second oil suction port and the oil tank; A confluence assembly, both the first path and the second path pass through the confluence assembly, and the confluence assembly is configured to be able to split the first path and the second path, and to be able to merge the first path and the second path.

2. The pumping station system according to claim 1, characterized in that The pump station system further includes a first filter and a second filter. The first filter is disposed on the first path and is located between the confluence assembly and the oil tank. The second filter is disposed on the second path and is located between the confluence assembly and the oil tank.

3. The pumping station system according to claim 2, characterized in that, The oil tank has a receiving portion, and the first filter and the second filter are disposed within the receiving portion.

4. The pumping station system according to claim 2, characterized in that, The first filter is detachably disposed on the first path, and the second filter is detachably disposed on the second path.

5. The pumping station system according to claim 2, characterized in that, The first filter and the second filter are arranged side by side.

6. The pumping station system according to claim 1, characterized in that The oil tank has a receiving portion, and at least a part of the confluence assembly is disposed within the receiving portion.

7. The pumping station system according to claim 6, characterized in that, The pump station system further includes a first filter and a second filter. The first filter is disposed on the first path and is located between the confluence assembly and the oil tank. The second filter is disposed on the second path and is located between the confluence assembly and the oil tank; wherein, both the first filter and the second filter are disposed within the receiving portion.

8. The pumping station system according to any one of claims 1 to 7, characterized in that, The confluence assembly includes: A housing having an inner cavity. The inner cavity has a first chamber communicating with the first path and a second chamber communicating with the second path. The inner cavity further has a passage connecting the first chamber and the second chamber; A core body disposed in the inner cavity. The core body is movable to seal the passage and to open the passage.

9. The pumping station system according to claim 8, characterized in that, The confluence assembly further includes a limiting member disposed in the inner cavity. The core body abuts against the limiting member to be limited by the limiting member and seal the passage.

10. A coal shearer, characterized in that, The shearer includes the pump station system according to any one of claims 1 to 9.

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