Pump station device and heading machine

Abstract

The utility model relates to the technical field of hydraulic devices, and provides a pump station device and a heading machine, the pump station device comprises an oil tank, an air filter and a plugging piece; a first mounting hole and a second mounting hole are formed in the top wall of the oil tank and distributed in the two ends of the oil tank in the longitudinal direction of the oil tank. When the pump station device is installed on the heading machine, the longitudinal direction of the oil tank is consistent with the front-back direction of the heading machine. Before the heading machine goes uphill, the front one of the first mounting hole and the second mounting hole is provided with an air filter, and the rear one of the first mounting hole and the second mounting hole is blocked by a blocking piece; before the heading machine goes downhill, the rear one of the first mounting hole and the second mounting hole is provided with the air filter, and the front one of the first mounting hole and the second mounting hole is blocked by the blocking piece. The plugging piece is installed through a threaded structure, and the sealing performance is improved. Thus, when the heading machine is under different working conditions, the air filter can be located at the high position of the oil tank, the liquid level position in the oil tank is lower than that of the air filter, and leakage of hydraulic oil is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to a pump station device and a tunneling machine. Background Art

[0002] The roadheader is a large-scale mechanical equipment in underground mines. It is an important equipment in tunnel excavation machinery and the key to realizing mechanization of excavation. When the roadheader is operating, it is mainly powered by its hydraulic system. The hydraulic pump station, as the "heart" of the hydraulic system, provides power for each actuator of the hydraulic system to ensure the smooth operation of the equipment.

[0003] The hydraulic pump station uses a tank to store hydraulic oil, and an air filter is installed on the top of the tank. The air filter is used to filter air and maintain the pressure balance inside the tank. However, in some working conditions, such as when tunneling in a steep coal mine tunnel, the tunnel boring machine needs to go uphill or downhill with a steep slope, and the tunnel boring machine will tilt forward or backward relative to the vertical direction. In some cases, the liquid level in the tank will be higher than the air filter, causing the hydraulic oil in the tank to leak out from the air filter position.

[0004] Therefore, how to solve the problem of hydraulic oil leakage in the pump station device in the prior art when the tunnel boring machine is running on a large slope has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] The utility model provides a pump station device and a tunnel boring machine, which are used to solve the defect of hydraulic oil leakage in the pump station device in the prior art when the tunnel boring machine runs at a large slope.

[0006] The utility model provides a pump station device, comprising an oil tank, an air filter and a blocking member;

[0007] The oil tank has a receiving cavity inside, and a first mounting hole and a second mounting hole are arranged on the top wall of the oil tank, wherein the first mounting hole and the second mounting hole are distributed at two ends of the oil tank along the longitudinal direction of the oil tank;

[0008] The air filter is suitable for being detachably connected to any one of the first mounting hole and the second mounting hole, and the blocking member is suitable for being detachably connected to the other of the first mounting hole and the second mounting hole;

[0009] The first mounting hole and the second mounting hole are both threaded holes, and the air filter and the blocking member are both provided with external threads, and the external threads are matched with the threaded holes.

[0010] According to a pump station device provided by the utility model, the blocking member is a screw plug.

[0011] A pump station device provided by the utility model also includes a power pump and an oil suction filter. The bottom end of the oil tank is provided with an oil outlet. The oil suction filter has an oil inlet and an oil outlet. The oil inlet of the oil suction filter is connected to the oil outlet of the oil tank, and the oil outlet of the oil suction filter is connected to the oil suction port of the power pump.

[0012] According to a pump station device provided by the utility model, along the longitudinal direction of the oil tank, the oil tank has a first side wall and a second side wall that are relatively arranged, and the oil outlet of the oil tank is arranged on the first side wall of the oil tank. The pump station device also includes an oil suction pipe, which is arranged inside the oil tank, the oil suction pipe is in contact with the inner bottom wall of the oil tank, the second end of the oil suction pipe is connected to the oil outlet of the oil tank, and the first end of the oil suction pipe extends in a direction away from the first side wall.

[0013] According to a pump station device provided by the utility model, the second side wall of the oil tank is arranged facing the first side wall, and the distance between the first end of the oil suction pipe and the first side wall is equal to the distance between the first end of the oil suction pipe and the second side wall.

[0014] According to a pump station device provided by the utility model, along the transverse direction of the oil tank, the oil tank has a third side wall and a fourth side wall arranged opposite to each other, and the distance between the first end of the oil suction pipe and the third side wall is equal to the distance between the first end of the oil suction pipe and the fourth side wall.

[0015] According to a pump station device provided by the utility model, the power pump includes a main pump and an auxiliary pump, two oil suction filters are provided, and two oil outlets are provided at the bottom end of the oil tank. The two oil outlets of the oil tank are distributed along the transverse direction of the oil tank, and the oil suction port of the main pump is connected to an oil outlet of the oil tank through one of the oil suction filters, and the oil suction port of the auxiliary pump is connected to the other oil outlet of the oil tank through the other oil suction filter.

[0016] According to a pump station device provided by the utility model, the oil outlet of the oil tank is arranged at the bottom end of the side wall of the oil tank, and the oil outlet of the oil suction filter is located at the bottom wall of the oil suction filter.

[0017] According to a pump station device provided by the utility model, the power pump is arranged adjacent to the oil suction filter.

[0018] The utility model also provides a tunneling machine, comprising the above-mentioned pump station device.

[0019] The pump station device provided by the utility model comprises an oil tank, an air filter and a plugging member. The inside of the oil tank has a containing cavity for containing hydraulic oil. The top wall of the oil tank is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are distributed at both ends of the oil tank along the longitudinal direction of the oil tank. The air filter can be detachably connected to any one of the first mounting hole and the second mounting hole, and the plugging member can also be detachably connected to any one of the first mounting hole and the second mounting hole. When the air filter is installed in one of the first mounting hole and the second mounting hole, the plugging member is installed in the other. When the pump station device provided by the utility model is installed in a tunnel boring machine, the longitudinal direction of the oil tank is consistent with the front and rear direction of the tunnel boring machine. Before the tunnel boring machine goes uphill, the air filter is installed in one of the first mounting hole and the second mounting hole that is relatively forward, and the other is blocked by the plugging member; before the tunnel boring machine goes downhill, the air filter is installed in one of the first mounting hole and the second mounting hole that is relatively backward, and the other is blocked by the plugging member. The first mounting hole and the second mounting hole are both threaded holes, and the air filter and the plugging piece are both provided with external threads, which are matched with the threaded holes. The air filter and the plugging piece are both installed on the oil tank through a threaded structure, and the threaded structure can improve the sealing between the plugging piece and the oil tank, and avoid the leakage of hydraulic oil at the position of the plugging piece. With such a configuration, under different working conditions of the tunnel boring machine, the air filter can be located at a higher position of the oil tank, and the liquid level in the oil tank is lower than the air filter. In addition, the sealing performance at the position of the plugging piece is good, which effectively avoids the leakage of hydraulic oil and solves the problem of hydraulic oil leakage in the pump station device in the prior art when the tunnel boring machine is running on a large slope.

[0020] Furthermore, in the tunnel boring machine provided by the present invention, since it is provided with the pump station device as described above, it also has the various advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the pump station device provided by the utility model at a viewing angle.

[0023] Figure 2 It is a schematic diagram of the position of the oil suction pipe provided by the utility model in the oil tank.

[0024] Figure 3 It is a structural schematic diagram of the pump station device provided by the utility model at another viewing angle.

[0025] Reference numerals:

[0026] 1. Oil tank; 2. Air filter; 3. Sealing piece; 4. Oil suction filter; 5. First side wall; 6. Oil suction pipe; 7. Second side wall; 8. Main pump; 9. Auxiliary pump; 10. Motor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figures 1 to 3 The utility model is described in detail.

[0033] like Figures 1 to 3 As shown, the pump station device provided by the embodiment of the utility model includes an oil tank 1, an air filter 2 and a blocking member 3.

[0034] Specifically, the oil tank 1 has a receiving cavity inside for receiving hydraulic oil.

[0035] The top wall of the fuel tank 1 is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are distributed at both ends of the fuel tank 1 along the longitudinal direction of the fuel tank 1. Figure 1 In the direction indicated by y, the horizontal direction of the fuel tank 1 is perpendicular to the longitudinal direction of the fuel tank 1. Figure 1 The height direction of the fuel tank 1 is perpendicular to the horizontal direction and the longitudinal direction of the fuel tank 1. Figure 1 When the transverse direction of the oil tank 1 and the longitudinal direction of the oil tank 1 are both in the horizontal direction, the height direction of the oil tank 1 is in the vertical direction. At this time, the wall surface at the upper end of the oil tank 1 is the top wall of the oil tank 1.

[0036] The air filter 2 can be detachably connected to any one of the first mounting hole and the second mounting hole, and the blocking member 3 can also be detachably connected to any one of the first mounting hole and the second mounting hole.

[0037] When the air filter 2 is installed in one of the first installation hole and the second installation hole, the blocking member 3 is installed in the other one of the first installation hole and the second installation hole.

[0038] When the pump station device provided by the embodiment of the utility model is installed on the tunnel boring machine, the longitudinal direction of the oil tank 1 is consistent with the front-rear direction of the tunnel boring machine. Before the tunnel boring machine goes uphill, the air filter 2 is installed in the relatively front one of the first mounting hole and the second mounting hole, and the relatively rear one is blocked with the blocking member 3; before the tunnel boring machine goes downhill, the air filter 2 is installed in the relatively rear one of the first mounting hole and the second mounting hole, and the relatively front one is blocked with the blocking member 3.

[0039] The first mounting hole and the second mounting hole are both threaded holes, and the air filter 2 and the plugging member 3 are both provided with external threads, which are adapted to the threaded holes. The air filter 2 and the plugging member 3 can both be mounted on the oil tank 1 through the threaded structure, and the threaded structure can improve the sealing between the plugging member 3 and the oil tank 1, and prevent the leakage of hydraulic oil at the position of the plugging member 3.

[0040] With such arrangement, under different working conditions of the tunnel boring machine, the air filter 2 can be located at a higher position of the oil tank 1, the liquid level in the oil tank 1 is lower than the air filter 2, and the sealing performance at the position of the sealing member 3 is good, thereby effectively avoiding the leakage of the hydraulic oil, and solving the problem of hydraulic oil leakage in the pump station device in the prior art when the tunnel boring machine is running on a large slope.

[0041] The first mounting hole and the second mounting hole may be provided with one or at least two, respectively. Increasing the number of the first mounting hole and the second mounting hole may increase the air intake efficiency.

[0042] In the embodiment of the utility model, the first mounting hole and the second mounting hole can be set as threaded holes, and external threads are set on the air filter 2 and the blocking member 3, and the external threads are adapted to the threaded holes. The air filter 2 and the blocking member 3 are connected to the first mounting hole and the second mounting hole by threaded connection, and the air filter 2 and the blocking member 3 can be disassembled at the first mounting hole and the second mounting hole by screwing operation, which is convenient for operation.

[0043] In this embodiment, the plugging member 3 may be, but is not limited to, a screw plug. The screw plug is a standard part, which can be mass-produced, thereby reducing production costs.

[0044] In the embodiment of the utility model, the pump station device further includes a power pump and an oil suction filter 4 .

[0045] The oil suction filter 4 has an oil inlet and an oil outlet, and an oil outlet is provided at the bottom end of the oil tank 1. The oil inlet of the oil suction filter 4 is connected to the oil outlet of the oil tank 1, and the oil outlet of the oil suction filter 4 is connected to the oil suction port of the power pump.

[0046] When the power pump is running, the hydraulic oil in the oil tank 1 passes through the oil suction filter 4 and then enters the power pump. The oil suction filter 4 can filter the hydraulic oil entering the power pump to prevent impurities from entering the power pump and other hydraulic components, which is beneficial to improving the service life of the power pump and other hydraulic components.

[0047] In this embodiment, the oil outlet of the oil tank 1 is arranged on the side wall of the oil tank 1. For the convenience of explanation, the side wall is called the first side wall 5 of the oil tank 1, and the side wall arranged opposite to the first side wall 5 in the longitudinal direction of the oil tank 1 is called the second side wall. Specifically, when the pump station device in the embodiment of the utility model is installed on the tunneling machine, the second side wall 7 of the oil tank 1 is located in front of the first side wall 5 of the oil tank 1.

[0048] The pump station device provided in this embodiment also includes an oil suction pipe 6, which is arranged inside the oil tank 1, the second end of the oil suction pipe 6 is connected to the oil outlet of the oil tank 1, and the first end of the oil suction pipe 6 extends in a direction away from the first side wall 5.

[0049] The first end of the oil suction pipe 6 gradually extends toward the middle position of the oil tank 1 in the longitudinal direction, which can reduce the distance between the first end of the oil suction pipe 6 and the liquid level in the oil tank 1 when the tunnel boring machine is running at a large slope, reduce the possibility that the first end of the oil suction pipe 6 is located above the liquid level in the oil tank 1, reduce the probability of the power pump being sucked empty, and ensure the normal operation of the tunnel boring machine.

[0050] Moreover, the oil suction pipe 6 is in contact with the inner bottom wall of the oil tank 1, which can further reduce the distance between the first end of the oil suction pipe 6 and the liquid surface in the oil tank 1 when the tunnel boring machine runs at a large slope, and can further reduce the probability of the power pump being sucked empty.

[0051] In this embodiment, the distance between the first end of the oil suction pipe 6 and the first side wall 5 is equal to the distance between the first end of the oil suction pipe 6 and the second side wall 7. That is, along the longitudinal direction of the oil tank 1, the first end of the oil suction pipe 6 is located in the middle position of the bottom wall of the oil tank 1.

[0052] Similarly, among the side walls of the oil tank 1, the two side walls distributed along the transverse direction of the oil tank 1 are the third side wall and the fourth side wall, respectively, so that the distance between the first end of the oil suction pipe 6 and the third side wall and the distance between the first end of the oil suction pipe 6 and the fourth side wall can be equal, that is, along the transverse direction of the oil tank 1, the first end of the oil suction pipe 6 is located in the middle position of the bottom wall of the oil tank 1.

[0053] In summary, the first end of the oil suction pipe 6 is located at the center of the bottom wall of the oil tank 1, which can ensure that whether the tunnel boring machine is going uphill or downhill, even at an extreme slope and when the oil tank 1 has an inclination angle in the lateral direction, the first end of the oil suction pipe 6 will not leak out of the liquid level of the oil tank 1, thereby avoiding the problem of the power pump being sucked empty when the tunnel boring machine is going uphill or downhill, so that the tunnel boring machine equipped with the pump station device provided by the embodiment of the utility model is not restricted by the slope of uphill or downhill.

[0054] In the embodiment of the utility model, the power pump includes a main pump 8 and an auxiliary pump 9. The main pump 8 and the auxiliary pump 9 are driven by the same motor 10, and the main pump 8 and the auxiliary pump 9 run synchronously.

[0055] Two oil suction filters 4 are provided, and two oil outlets are provided at the bottom end of the oil tank 1, and the two oil outlets of the oil tank 1 are distributed along the lateral direction of the oil tank 1. The oil suction port of the main pump 8 is connected to one oil outlet of the oil tank 1 through one of the oil suction filters 4, and the oil suction port of the auxiliary pump 9 is connected to the other oil outlet of the oil tank 1 through the other oil suction filter 4.

[0056] It should be noted that an oil suction pipe 6 may be provided at each of the two oil outlets of the oil tank 1 , or the oil suction pipe 6 may be provided only at the oil outlet of the oil tank 1 corresponding to the main pump 8 .

[0057] In this embodiment, the oil outlet of the oil tank 1 is arranged at the bottom end of the side wall of the oil tank 1. Specifically, the oil outlet of the oil tank 1 can be arranged at the bottom end of the first side wall 5 of the oil tank 1, that is, the oil outlet of the oil tank 1 faces the rear of the tunnel boring machine.

[0058] The oil outlet of the oil suction filter 4 is located at the bottom wall of the oil suction filter 4, that is, the oil outlet of the oil suction filter 4 is arranged downward, which can further reduce the oil suction height of the power pump and facilitate the power pump to suck in hydraulic oil.

[0059] It should be noted that the oil outlets of both oil suction filters 4 may be arranged to face downward, or only the oil outlet of the oil suction filter 4 corresponding to the main pump 8 may be arranged to face downward.

[0060] In the embodiment of the utility model, the power pump and the oil suction filter 4 are arranged adjacent to each other, and the distance between the oil suction port of the power pump and the oil outlet of the oil suction filter 4 is reduced as much as possible. When the tunnel boring machine runs at a large slope, it is beneficial to reduce the height difference between the oil suction port of the power pump and the liquid level in the oil tank 1.

[0061] To sum up, the pump station device provided by the embodiment of the utility model has the advantages of compact structure and small overall size. It can not only avoid the problem of hydraulic oil leakage from the air filter 2 when the tunnel boring machine is running on a large slope, but also has a strong anti-cavitation effect.

[0062] On the other hand, the embodiment of the utility model further provides a tunnel boring machine, comprising the pump station device provided by any of the above embodiments. The pump station device provided by the above embodiments can effectively prevent the leakage of the hydraulic oil in the oil tank 1 at the position of the air filter 2. Therefore, the tunnel boring machine in this embodiment can safely and reliably operate at a large slope. The derivation process of the beneficial effects of the tunnel boring machine in the embodiment of the utility model is generally similar to the derivation process of the beneficial effects of the above pump station device, so it will not be repeated here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A pump station device, characterized in that: Including fuel tank, air filter and plugging parts; The oil tank has a receiving cavity inside, and a first mounting hole and a second mounting hole are arranged on the top wall of the oil tank, wherein the first mounting hole and the second mounting hole are distributed at two ends of the oil tank along the longitudinal direction of the oil tank; The air filter is suitable for being detachably connected to any one of the first mounting hole and the second mounting hole, and the blocking member is suitable for being detachably connected to the other of the first mounting hole and the second mounting hole; The first mounting hole and the second mounting hole are both threaded holes, and the air filter and the blocking member are both provided with external threads, and the external threads are matched with the threaded holes.

2. The pump station device according to claim 1, characterized in that: The blocking member is a screw plug.

3. The pump station device according to claim 1, characterized in that: It also includes a power pump and an oil suction filter. The bottom end of the oil tank is provided with an oil outlet. The oil suction filter has an oil inlet and an oil outlet. The oil inlet of the oil suction filter is connected to the oil outlet of the oil tank, and the oil outlet of the oil suction filter is connected to the oil suction port of the power pump.

4. The pump station device according to claim 3, characterized in that: Along the longitudinal direction of the oil tank, the oil tank has a first side wall and a second side wall that are opposite to each other, and the oil outlet of the oil tank is arranged on the first side wall of the oil tank. The pump station device also includes an oil suction pipe, which is arranged inside the oil tank, the oil suction pipe is in contact with the inner bottom wall of the oil tank, the second end of the oil suction pipe is connected to the oil outlet of the oil tank, and the first end of the oil suction pipe extends in a direction away from the first side wall.

5. The pump station device according to claim 4, characterized in that: The distance between the first end of the oil suction pipe and the first side wall is equal to the distance between the first end of the oil suction pipe and the second side wall.

6. The pump station device according to claim 5, characterized in that: Along the transverse direction of the oil tank, the oil tank has a third side wall and a fourth side wall that are arranged opposite to each other, and the distance between the first end of the oil suction pipe and the third side wall is equal to the distance between the first end of the oil suction pipe and the fourth side wall.

7. The pump station device according to claim 4, characterized in that: The power pump includes a main pump and an auxiliary pump, two oil suction filters are provided, and two oil outlets are provided at the bottom end of the oil tank. The two oil outlets of the oil tank are distributed along the transverse direction of the oil tank. The oil suction port of the main pump is connected to one oil outlet of the oil tank through one of the oil suction filters, and the oil suction port of the auxiliary pump is connected to the other oil outlet of the oil tank through the other oil suction filter.

8. The pump station device according to any one of claims 4 to 7, characterized in that: The oil outlet of the oil tank is arranged at the bottom end of the side wall of the oil tank, and the oil outlet of the oil suction filter is located at the bottom wall of the oil suction filter.

9. The pump station device according to claim 4, characterized in that: The power pump is arranged adjacent to the oil suction filter.

10. A tunnel boring machine, characterized in that: Comprising a pump station device as described in any one of claims 1 to 9.

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