Integrated hydraulic oil tank rear supporting structure for short-body bolter miner

Abstract

The invention belongs to the technical field of tunneling machine engineering machinery, and provides a short-body tunneling machine and an integrated hydraulic oil tank rear supporting structure thereof, the short-body tunneling machine comprises a rear supporting frame main beam and an oil tank cavity group, the oil tank cavity group and the rear supporting frame main beam are integrated into a whole, and the oil tank cavity group is of a U-shaped structure; longitudinal rear supporting rib plates on the two sides of the rear supporting main beam define a lower passageway cavity of the oil tank cavity set, the oil tank cavity set is arranged above a bearing platform panel of the rear supporting frame main beam, the oil tank cavity set comprises an oil return cavity, an oil suction cavity and an upper passageway cavity, and the oil return cavity and the oil suction cavity are communicated through the upper passageway cavity. The oil return cavity is communicated with the lower passage cavity through an oil return opening formed in the bearing platform panel; on the premise of not sacrificing the structural strength and hydraulic performance of the miner-bolter, the internal space of the rear support of the miner-bolter is fully utilized, and the spatial layout of the short-body miner-bolter is optimized to the maximum extent.

Description

Technical Field

[0001] This invention belongs to the field of tunneling machine engineering machinery technology, and relates to an integrated hydraulic oil tank for a low-profile tunneling and anchoring machine, specifically a rear support structure for an integrated hydraulic oil tank of a low-profile tunneling and anchoring machine. Background Technology

[0002] Low-profile roadheader and anchorer is mainly used for tunneling and anchoring operations in low-profile coal mine roadways. Due to the strict limitations on its overall height, the internal space layout of the equipment is extremely compact, and optimizing the layout of each functional component is a huge challenge in the design of low-profile roadheader and anchorer.

[0003] Currently, existing low-profile roadheader / anchor rigs typically employ a split design, with the hydraulic tank and rear support frame being independent components. The rear support frame, the main beam frame connected to the rear of the roadheader / anchor rig body, supports the first transport vehicle, electrical control box, and hydraulic pump motor. The hydraulic tank, on the other hand, is a separate enclosure, usually located in other spaces at the rear or top of the roadheader / anchor rig. This traditional layout presents several problems. First, the independent hydraulic tank occupies valuable, already limited space, severely restricting the flexibility of the overall machine layout. To accommodate the tank, the overall height or width of the machine sometimes has to be increased. Second, the piping connections between the independent tank, the dual pump, and the actuators are long and complex, increasing pressure loss, energy consumption, and the risk of oil leakage. Third, the rear support frame only provides support, and its large beam space is not effectively utilized, resulting in structural and spatial waste. Finally, the split design also leads to a large number of parts, high manufacturing costs, and a heavy overall weight. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated hydraulic oil tank rear support structure for low-profile roadheader and anchor machine, which can make full use of the internal space of the rear support of the roadheader and anchor machine without sacrificing the structural strength and hydraulic performance of the roadheader and anchor machine, optimize the spatial layout of the low-profile roadheader and anchor machine to the maximum extent, and achieve efficient integration of hydraulic oil tank and support structure.

[0005] The technical solution adopted by the present invention to achieve the above objectives is as follows: An integrated hydraulic oil tank rear support structure for a low-profile roadheader includes a rear support frame main beam and an oil tank cavity assembly. The oil tank cavity assembly is integrated with the rear support frame main beam as one unit. The oil tank cavity assembly has a U-shaped structure, and the longitudinal rear support stiffeners on both sides of the rear support main beam surround it as the lower passage cavity of the oil tank cavity assembly.

[0006] Furthermore, the main beam of the rear support frame includes a pier plate and longitudinal rear support stiffeners. The lower passage cavity formed by the longitudinal rear support stiffeners is attached to the bottom of the pier plate. The pier plate is provided with an oil return port, a cleaning port, and an oil suction port, which are connected to the lower passage cavity respectively. Oil drain ports are provided at the bottom of both sides of the lower passage cavity. A lower passage cavity magnet is provided in the middle of the bottom of the cleaning port of the lower passage cavity.

[0007] Furthermore, the magnetic rod in the lower passage cavity is supported and fixed by a magnetic rod support bracket.

[0008] Furthermore, the oil tank cavity assembly is located above the bearing plate of the main beam of the rear support frame. The oil tank cavity assembly includes a return oil cavity, an oil suction cavity, and an upper passage cavity. The return oil cavity and the oil suction cavity are connected through the upper passage cavity. At the same time, the return oil cavity is connected to the lower passage cavity through the return oil port provided on the bearing plate, and the oil suction cavity is connected to the lower passage cavity through the oil suction port provided on the bearing plate. The return oil cavity, upper passage cavity, lower passage cavity, and oil suction cavity form a U-shaped oil tank. The recessed part is used to avoid the chute of the first transport machine of the tunneling and anchoring machine.

[0009] Furthermore, a cleaning port is provided above the upper passageway cavity, and a magnetic rod support is provided inside the middle of the upper passageway cavity, with an upper passageway magnetic rod on the magnetic rod support.

[0010] Furthermore, the upper passage cavity and the lower passage cavity are not directly connected. The upper passage cavity is located at the lower front of the foundation panel, and the lower passage cavity is located at the upper rear of the foundation panel. The upper passage cavity and the lower passage cavity, together with the return oil cavity and the suction oil cavity, respectively form a U-shaped oil tank.

[0011] Furthermore, the oil return chamber is set in the shape of a cuboid by the triangular diagonal main stiffener plate on one side above the support plate. The oil return chamber is equipped with an oil return filter connection port, an oil injection connection port, an oil drain connection port, an oil temperature and oil fluid sensor connection port, and an air connector connection port. Two cleaning ports are provided on the outer side of the oil return chamber.

[0012] Furthermore, the oil suction chamber is attached to the triangular inclined main stiffener plate on the side of the bearing plate away from the return oil chamber. The oil suction chamber consists of three parts: a first oil suction chamber, a second oil suction chamber, and a third oil suction chamber. The first oil suction chamber is a cuboid cavity with two cleaning ports on the outside and an air filter connection port on the top. The second oil suction chamber extends to be flush with the outside of the bearing plate of the rear support frame main beam. An oil level groove is provided on the outside of the second oil suction chamber to install an oil level gauge, and a cleaning port is provided on the front side. The first and second oil suction chambers are connected to form an L-shaped cavity. The third oil suction chamber is located below the inner corner of the L-shaped cavity. The third oil suction chamber is provided with a pump suction port for connecting the hydraulic pump.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Significantly improves space utilization: By using the interior of the rear support frame main beam as a passageway for the hydraulic oil tank, connecting the oil suction chamber and the oil return chamber, the structural and hydraulic functions are integrated, completely eliminating the independent oil tank body and solving the layout problem of extremely compact internal space in low-profile roadheader and anchorer.

[0014] 2. The functional division of the oil tank is clear at a glance. All return oil pipes and drain oil pipes return to the return oil chamber on the left side of the rear support frame, and the oil supply pipes all come out from the suction oil chamber. This makes the pipeline system layout and distribution reasonable, and it is easy to troubleshoot problems.

[0015] 3. The increased capacity of the hydraulic oil tank offers several advantages to the roadheader: First, roadheaders have high workloads and high oil consumption; a large tank can store more hydraulic oil, allowing for longer continuous operation. Second, the hydraulic system is the core power source of the roadheader, generating significant heat during operation. The oil tank is a crucial heat dissipation component. After returning to the return chamber, the hydraulic oil passes through the passageway to the suction chamber, providing sufficient time and surface area for heat exchange with the air and the tank's inner wall, thus reducing oil temperature. The larger volume and heat dissipation area also effectively stabilize the system oil temperature. Third, hydraulic oil inevitably produces contaminants such as wear particles during circulation. The integrated hydraulic oil tank's rear support structure slows down the oil flow, providing more time for impurities and moisture to settle, allowing them to settle into the lower and upper passageways with magnetic rods, rather than being pumped back into precision hydraulic components and causing wear. Finally, the large-capacity tank reduces the frequency of refueling and lowers equipment scheduling costs.

[0016] 4. It ensures the structural strength and stability of the hydraulic system. It creatively utilizes the empty part of the inner cavity of the main beam of the rear support frame to enclose the oil tank cavity. This not only does not weaken the load-bearing capacity of the rear support, but also enhances the stability of the overall structure because the cavity is filled with hydraulic oil. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 yes Figure 2 A sectional view of A_A; Figure 4 This is a schematic diagram of the fuel tank cavity assembly in this invention; Figure 5 This is a schematic diagram of the oil suction chamber in the oil tank cavity assembly of the present invention; Figure 6 This is a schematic diagram of the operating structure of the present invention; In the diagram: 1. Rear support frame main beam; 11. Abutment panel; 12. Longitudinal rear support stiffener; 13. Lower passageway cavity; 131. Oil return port; 132. Lower passageway cavity cleaning port; 133. Oil suction port; 134. Oil discharge port; 135. Lower passageway cavity magnet rod; 136. Magnet rod support bracket; 2. Oil tank cavity assembly; 21. Oil return cavity; 211. Oil return filter connection port; 212. Oil filling connection port; 213. Oil drain connection port; 214. Oil temperature and oil fluid sensor connection port; 215. Air connector connection port; 2 16. First cleaning port; 217. Second cleaning port; 22. Oil suction chamber; 221. First oil suction chamber; 2211. Third cleaning port; 2212. Fourth cleaning port; 2213. Air filter connection port; 222. Second oil suction chamber; 2221. Oil level tank; 2222. Fifth cleaning port; 223. Third oil suction chamber; 2231. Pump suction port; 23. Upper passage chamber; 231. Upper passage chamber cleaning port; 24. Return oil filter; 25. Suction filter; 26. Suction pipe; 27. Hydraulic pump. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1-6As shown, an integrated hydraulic oil tank rear support structure for a low-profile roadheader includes a rear support frame main beam 1 and an oil tank cavity assembly 2. The oil tank cavity assembly 2 is integrated with the rear support frame main beam 1 and has a U-shaped structure. The longitudinal rear support ribs on both sides of the rear support main beam 1 enclose the lower passage cavity of the oil tank cavity assembly 2. Here, an upward-facing opening is hollowed out in the longitudinal thick support ribs on both sides, and a thin plate is welded inside to form a rectangular basin-shaped oil groove, which becomes a concealed lower passage cavity 13. The rear support frame main beam 1 includes a base panel 11 and longitudinal rear support ribs 12. The lower passage cavity 13 enclosed by the longitudinal rear support ribs 12 is fastened to the bottom of the base panel 11. The 11 is equipped with an oil return port 131, a lower passage cavity cleaning port 132, and an oil suction port 133, which are connected to the lower passage cavity 13. Oil discharge ports 134 are provided at the bottom of both sides of the lower passage cavity 13. A lower passage cavity magnet 135 is provided in the middle of the bottom of the lower passage cavity cleaning port 132. The lower passage cavity magnet 135 is supported and fixed by a magnet support bracket 136. The lower passage cavity magnet 135 can magnetically attract the residue in the lower passage cavity 13. The lower passage cavity cleaning port 132 is provided to facilitate cleaning of the lower passage cavity 13 and to facilitate the disassembly and maintenance of the lower passage cavity magnet 135.

[0020] The oil tank cavity assembly 2 is located above the bearing plate 11 of the main beam 1 of the rear support frame. The oil tank cavity assembly 2 includes an oil return cavity 21, an oil suction cavity 22, and an upper passage cavity 23. The oil return cavity 21 and the oil suction cavity 22 are connected through the upper passage cavity 23. At the same time, the oil return cavity 21 is connected to the lower passage cavity 13 through the oil return port 131 provided on the bearing plate 11, and the oil suction cavity 22 is connected to the lower passage cavity 13 through the oil suction port 133 provided on the bearing plate 11. The oil return cavity 21, the upper passage cavity 23, the lower passage cavity 13, and the oil suction cavity 22 form a U-shaped oil tank. The concave part is used to avoid the chute of the first transport machine of the excavator and anchor machine. An upper passage cavity cleaning port 231 is provided above the upper passage cavity 23. An upper passage cavity magnet is provided in the middle of the upper passage cavity 23. The upper passage cavity magnet is supported and fixed by a magnet support bracket. The upper passage cavity cleaning port 231 is designed to facilitate cleaning of the upper passage cavity 23, and at the same time, it can facilitate the disassembly and maintenance of the upper passage cavity magnet rod. The upper passage cavity magnet rod is used to magnetically attract the hydraulic oil flowing through the upper passage cavity to remove residue.

[0021] The upper passage cavity 23 and the lower passage cavity 13 are not directly connected. The lower passage cavity 13 is located at the lower front of the foundation panel 11, and the upper passage cavity 23 is located at the upper rear of the foundation panel 11. The upper passage cavity 13 and the lower passage cavity 23, together with the return oil cavity 21 and the suction oil cavity 22, respectively form a U-shaped oil tank.

[0022] The return oil chamber 21 is set in the shape of a cuboid and is attached to the triangular diagonal main stiffener plate on one side above the bearing plate 11. The return oil chamber 21 is provided with a return oil filter connection port 211, an oil injection connection port 212, an oil drain connection port 213, an oil temperature and oil fluid sensor connection port 214, and an air connector connection port 215. In this way, the return oil chamber 21 can meet the return oil function of the hydraulic system. The outer side of the return oil chamber 21 is provided with a first cleaning port 216 and a second cleaning port 217 to facilitate the cleaning of the inside of the return oil chamber 21.

[0023] The oil suction chamber 22 is attached to the triangular inclined main stiffener plate on the side of the upper part of the support plate 11 away from the oil return chamber 21. The oil suction chamber 22 consists of three parts: a first oil suction chamber 221, a second oil suction chamber 222, and a third oil suction chamber 223. The first oil suction chamber 221 is a rectangular cavity with a third cleaning port 2211 and a fourth cleaning port 2212 on its outer side for easy cleaning. An air filter connection port 2213 is provided above the oil suction chamber 221. The second oil suction chamber 222... Extending to be flush with the outer side of the bearing plate 11 of the main beam 1 of the rear support frame, an oil level groove 2221 is provided on the outer side of the second oil suction chamber 222 to install an oil level gauge for easy viewing of the oil level from the outside, and a fifth cleaning port 2222 is provided on the front side. The first oil suction chamber 221 and the second oil suction chamber 222 are connected to form an L-shaped cavity. A third oil suction chamber 223 is provided below the inner corner of the L-shaped cavity. A pump suction port 2231 for connecting the hydraulic pump is provided on the third oil suction chamber 223.

[0024] When the equipment is in operation, the oil returning from the equipment passes through the return oil filter 24 and the return oil filter connection port 211 to the return oil chamber 21. It then enters the lower passage chamber 13 through the return oil port 131 of the support plate 11. The lower passage chamber 13 has a magnetic rod 135 in the middle that attracts the residue in the oil. The oil then enters the suction chamber 22 through the suction port 133, is filtered by the suction oil filter 25, and is drawn into the hydraulic pump 27 through the suction pipe 26. Finally, it is transported through the oil pipe to the various actuators of the equipment for circulation.

[0025] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An integrated hydraulic oil tank rear support structure for a low-profile roadheader, characterized in that: It includes a rear support frame main beam and an oil tank cavity assembly. The oil tank cavity assembly is integrated with the rear support frame main beam as one unit. The oil tank cavity assembly has a U-shaped structure. The longitudinal rear support stiffeners on both sides of the rear support main beam surround the lower passage cavity of the oil tank cavity assembly.

2. The integrated hydraulic oil tank rear support structure for a low-profile roadheader as described in claim 1, characterized in that: The rear support frame main beam includes a pier panel and longitudinal rear support stiffeners. The lower passage cavity formed by the longitudinal rear support stiffeners is attached to the bottom of the pier panel. The pier panel is provided with an oil return port, a cleaning port, and an oil suction port, which are respectively connected to the lower passage cavity. Oil drain ports are provided at the bottom of both sides of the lower passage cavity. A lower passage cavity magnet is provided in the middle of the bottom of the cleaning port of the lower passage cavity.

3. The integrated hydraulic oil tank rear support structure for a low-profile roadheader as described in claim 1, characterized in that: The magnetic rod in the lower passageway cavity is supported and fixed by a magnetic rod support bracket.

4. The integrated hydraulic oil tank rear support structure for a low-profile roadheader as described in claim 1, characterized in that: The oil tank assembly is located above the bearing plate of the main beam of the rear support frame. The oil tank assembly includes a return oil chamber, an oil suction chamber, and an upper passageway chamber. The return oil chamber and the oil suction chamber are connected through the upper passageway chamber. The return oil chamber is connected to the lower passageway chamber through an oil return port provided on the bearing plate. The oil suction chamber is connected to the lower passageway chamber through an oil suction port provided on the bearing plate. The return oil chamber, the upper passageway chamber, the lower passageway chamber, and the oil suction chamber form a U-shaped oil tank. The recessed part is used to avoid the chute of the first transport machine of the excavator and anchor machine.

5. The integrated hydraulic oil tank rear support structure for a low-profile roadheader according to claim 1, characterized in that: A cleaning port is provided above the upper passageway cavity, and a magnetic rod support is provided inside the middle of the upper passageway cavity, with an upper passageway magnetic rod on the magnetic rod support.

6. The integrated hydraulic oil tank rear support structure for a low-profile tunneling and anchoring machine according to claim 1, characterized in that: The upper passage cavity and the lower passage cavity are not directly connected. The upper passage cavity is located at the lower front of the foundation panel, and the lower passage cavity is located at the upper rear of the foundation panel. The upper passage cavity and the lower passage cavity, together with the oil return cavity and the oil suction cavity, respectively form a U-shaped oil tank.

7. The integrated hydraulic oil tank rear support structure for a low-profile roadheader according to claim 1, characterized in that: The oil return chamber is set in the shape of a cuboid and is attached to the triangular diagonal main stiffener plate on one side above the support plate. The oil return chamber is provided with an oil return filter connection port, an oil injection connection port, an oil drain connection port, an oil temperature and oil liquid sensor connection port, and an air connector connection port. Two cleaning ports are provided on the outer side of the oil return chamber.

8. The integrated hydraulic oil tank rear support structure for a low-profile roadheader according to claim 1, characterized in that: The oil suction chamber is attached to the triangular inclined main stiffener plate on the side of the upper part of the support plate away from the return oil chamber. The oil suction chamber consists of three parts: a first oil suction chamber, a second oil suction chamber, and a third oil suction chamber. The first oil suction chamber is a cuboid cavity with two cleaning ports on the outside and an air filter connection port on the top. The second oil suction chamber extends to be flush with the outer side of the support plate of the rear support frame main beam. An oil level groove is provided on the outside of the second oil suction chamber to install an oil level gauge, and a cleaning port is provided on the front side. The first and second oil suction chambers are connected to form an L-shaped cavity. The third oil suction chamber is located below the inner corner of the L-shaped cavity. The third oil suction chamber is provided with a pump suction port for connecting the hydraulic pump.

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