A built-in lubrication and cooling system for a cross-cutting reducer of a horizontal axis tunneling machine

Abstract

The application discloses a built-in lubricating and cooling system of a transverse shaft tunneling machine cutting reduction gear, and relates to the field of mine machinery.The built-in lubricating and cooling system comprises an oil suction pipe, an oil suction pipe and gear pump oil suction port connecting rubber pipe, a gear pump device, a gear pump oil suction port and communication block connecting rubber pipe, a communication block, a communication block and cooler oil inlet connecting rubber pipe, a cooler oil outlet and oil pool connecting rubber pipe, a cooling water inlet pipe, a cooling water outlet pipe, a cooler, a lubricating oil pool and a reduction gear shell with an oil channel, and the oil circuit in the gear pump device is arranged in a U shape.The built-in lubricating and cooling system of the transverse shaft tunneling machine cutting reduction gear can reduce the temperature of the lubricating oil in the reduction gear, protect the sealing element of the cutting reduction gear from being damaged, reduce the number of shutdowns, and improve the production efficiency;the oil suction pipe is welded to the rear of the reduction gear shell, is far away from the working mechanism end in the front, has small vibration, and has high reliability;and the connection mode of each joint is screw connection, so that the installation and disassembly are convenient.

Description

Technical Field

[0001] This application relates to the field of mining machinery, and in particular to a built-in lubrication and cooling system for a cutting reducer of a horizontal shaft tunneling machine. Background Technology

[0002] In recent years, there has been an increasing number of hard rock tunneling machines used in high-hardness, complex geological conditions such as rock tunnels and deep mines, leading to a growing market demand for horizontal shaft tunneling machines.

[0003] During operation, the lubricating oil in the cutting reducer of the horizontal shaft tunneling machine generates a lot of heat. If the temperature is too high, it will damage the seals of the cutting reducer, which in turn will damage the bearings and gears, causing production to stop.

[0004] Existing gearboxes with lubrication systems on the market often break down during use; when seals and gear pumps are damaged, disassembly and replacement are extremely inconvenient because they are all located inside the gearbox, and this also greatly increases downtime; therefore, innovating the built-in lubrication and cooling system of the cutting gearbox of the horizontal shaft tunneling machine has great economic benefits. Utility Model Content

[0005] In order to provide a safe and effective cooling system, improve production efficiency and reduce downtime, this application provides a built-in lubrication and cooling system for the cutting reducer of a horizontal shaft tunneling machine.

[0006] The technical solution provided in this application for a built-in lubrication and cooling system for a horizontal shaft tunneling machine cutting reducer is as follows: Includes an oil suction pipe, a hose connecting the oil suction pipe to the gear pump oil suction port, a gear pump assembly, a hose connecting the gear pump oil suction port to the connecting block, the connecting block, a hose connecting the connecting block to the cooler oil inlet, a hose connecting the cooler oil outlet to the oil sump, a cooling water inlet pipe, a cooling water outlet pipe, a cooler, a lubricating oil sump, and a reducer housing with oil passages; The internal oil circuit of the gear pump unit is arranged in a U-shape, including the pump suction port pipeline, pump base, check valve, lubrication pinion, gear pump, cooling oil return port, pump outlet pipeline, vent plug, and lifting ring.

[0007] The gear pump device is equipped with a one-way valve as an overflow valve, and the one-way valve is connected to the pump outlet pipeline.

[0008] By adopting the above technical solution, high-temperature lubricating oil is drawn into the suction pipe through a gear pump device. The oil suction pipe is connected to the oil inlet of the gear pump via a hose, and the oil outlet of the cooler is connected to the oil sump via a hose, which then enters the cooler. This lowers the temperature of the lubricating oil in the reducer. The motor drives the cutting reducer transmission system to transmit power to the large lubricating gear, which in turn drives the small lubricating gear to rotate, thus driving the gear pump main shaft to rotate. No additional power source is required. By setting a one-way valve as an overflow valve, the entire cooling system is protected. When the system pressure is exceeded, overflow occurs at this point.

[0009] Preferably, the gear pump is fixedly installed at the bottom of the pump base, and the power of the gear pump is transmitted from the cutting motor to the cutting reducer transmission system to the lubrication gear, which in turn drives the lubrication gear to rotate.

[0010] By adopting the above technical solution, the transmission system of the cutting reducer driven by the motor transmits power to the lubricating large gear, thereby driving the main shaft of the gear pump to rotate, without the need for an additional power source.

[0011] Preferably, the gear pump device is connected to the oil suction port of the gear pump via an oil suction pipe and a connecting hose to the oil suction pipe, and the gear pump device is connected to the cooler via an oil outlet of the cooler and a connecting hose to the oil sump.

[0012] By adopting the above technical solution, high-temperature lubricating oil is drawn into the oil suction pipe through the gear pump device. The oil suction pipe is connected to the oil suction port of the gear pump by a hose, and the oil outlet of the cooler is connected to the oil sump by a hose, so that the temperature of the lubricating oil in the reducer is reduced.

[0013] Preferably, the cooled lubricating oil is supplied to the connecting block via a hose connecting the connecting block to the cooler's oil inlet, and the cooled lubricating oil is sent to the lubricating oil sump via a hose connecting the gear pump's suction port to the connecting block.

[0014] By adopting the above technical solution, part of the cooled lubricating oil is sent to the corresponding oil passage of the reducer housing through the lower part of the connecting block, and lubricates the corresponding gears and bearings through each oil passage. Part of the cooled lubricating oil is sent to the lubricating oil pool through the oil suction port of the gear pump and the connecting block connected hose.

[0015] Preferably, the oil suction pipe is welded to the rear of the reducer housing, away from the working mechanism end located directly in front.

[0016] By adopting the above technical solution, the oil suction pipe is welded to the rear of the reducer housing, away from the working mechanism end located directly in front, resulting in less vibration and higher reliability.

[0017] Preferably, the pump suction port pipeline is fixedly installed at the top of the pump base, and the pump suction port pipeline consists of a pump suction port connector, a connector gland and a connector, and fasteners. The pump discharge port pipeline is fixedly installed at the top of the pump base, and the pump discharge port pipeline consists of a pump discharge port connector, a connector sleeve, an eccentric gasket assembly and a connector.

[0018] By adopting the above technical solution, an eccentric pad is designed at the connection of the pump oil inlet pipeline. The threads of the gear pump and the two end connectors are tapered threads, and the screwing depth is uncontrollable. The eccentric pad serves to adjust the center distance between the pump oil inlet pipeline and the pump oil outlet pipeline and the ground.

[0019] In summary, this application includes at least one of the following beneficial technical effects: The cutting reducer lubrication and cooling system lowers the temperature of the lubricating oil inside the reducer, protecting the seals of the cutting reducer from damage, reducing downtime, and improving production efficiency. The oil suction pipe is welded to the rear of the reducer housing, away from the working mechanism at the front, resulting in less vibration and higher reliability. All joints are threaded, making installation and disassembly convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the built-in lubrication and cooling system of the cutting reducer of a horizontal shaft tunneling machine according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating the main structure of the cooling system in the embodiments of this application; Figure 3 This is a schematic diagram illustrating the structure of the gear pump device, which is the main embodiment of this application. Figure 4 This is a schematic diagram illustrating the cross-sectional structure of the gear pump device, which is the main feature of this application. Reference numerals: 101, oil suction pipe; 102, hose connecting the oil suction pipe to the gear pump suction port; 103, gear pump assembly; 104, hose connecting the gear pump suction port to the connecting block; 105, connecting block; 106, hose connecting the connecting block to the cooler inlet; 107, hose connecting the cooler outlet to the oil sump; 108, cooling water inlet pipe; 109, cooling water outlet pipe; 110, cooler; 111, reducer housing. ; 201. Pump suction port pipeline; 202. Pump base; 203. Check valve; 204. Lubrication pinion; 205. Gear pump; 206. Cooling oil return port; 207. Pump outlet pipeline; 208. Vent plug; 209. Lifting ring; 210. Pump outlet connecting pipe; 211. Connecting pipe sleeve; 212. Eccentric gasket assembly; 213. Connector; 214. Pump suction port connecting pipe; 215. Connecting pipe gland; 216. Fasteners. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0022] This application discloses a built-in lubrication and cooling system for the cutting reducer of a horizontal shaft tunneling machine.

[0023] Includes an oil suction pipe 101, a hose connecting the oil suction pipe to the gear pump oil suction port 102, a gear pump assembly 103, a hose connecting the gear pump oil suction port to the connecting block 104, a connecting block 105, a hose connecting the connecting block to the cooler oil inlet 106, a hose connecting the cooler oil outlet to the oil sump 107, a cooling water inlet pipe 108, a cooling water outlet pipe 109, a cooler 110, and a reducer housing 111; The internal oil circuit of the gear pump device 103 is arranged in a U-shape, including the pump suction port pipe 201, pump base 202, check valve 203, lubrication pinion 204, gear pump 205, cooling oil return port 206, pump outlet pipe 207, vent plug 208, and lifting ring 209.

[0024] By providing a lubricating oil sump and a reducer housing 111 with oil passages, the high-temperature lubricating oil is drawn into the suction pipe 101 by the gear pump device 103. The oil enters the cooler 110 through the suction pipe, the gear pump suction port connecting hose 102, and the cooler outlet connecting hose 107, which connects to the oil sump. This lowers the temperature of the lubricating oil in the reducer. The motor drives the cutting reducer transmission system to transmit power to the lubricating large gear, which in turn drives the lubricating small gear 204 to rotate, driving the gear pump 205 main shaft to rotate. No additional power source is required.

[0025] Reference Figure 3 The gear pump 205 is fixedly installed at the bottom of the pump base 202. The power of the gear pump 205 is transmitted from the cutting motor to the cutting reducer transmission system to the lubrication gear, which in turn drives the lubrication gear 204 to rotate.

[0026] The transmission system of the cutting reducer driven by the motor transmits power to the lubrication gear, which in turn drives the main shaft of the gear pump 205 to rotate, without the need for an additional power source.

[0027] Reference Figure 1 , Figure 2 The gear pump device 103 is connected to the gear pump suction port via an oil suction pipe and a connecting hose 102 to the oil suction pipe 101. The gear pump device 103 is connected to the cooler 110 via a connecting hose 107 to the cooler outlet. The cooled lubricating oil is transported to the connecting block 105 via a connecting hose 106 to the cooler inlet, and the cooled lubricating oil is sent to the lubricating oil sump via a connecting hose 104 to the gear pump suction port.

[0028] High-temperature lubricating oil is drawn into the suction pipe 101 by the gear pump device 103. The oil then enters the cooler 110 through the suction pipe, the gear pump suction port connecting hose 102, and the cooler outlet connecting oil sump connecting hose 107. This lowers the temperature of the lubricating oil in the reducer. Part of the cooled lubricating oil is sent to the corresponding oil passages in the reducer housing through the connecting block below, lubricating the corresponding gears and bearings through each oil passage. The remaining part of the cooled lubricating oil is sent to the lubricating oil sump through the gear pump suction port connecting hose 104.

[0029] Reference Figure 1 , Figure 2 The oil suction pipe 101 is welded to the rear of the reducer housing 111, away from the working mechanism end directly in front, resulting in low vibration and high reliability.

[0030] By welding the oil suction pipe 101 to the rear of the reducer housing 111, away from the working mechanism end directly in front, vibration is reduced and reliability is increased.

[0031] Reference Figure 3 , Figure 4 The pump suction port pipe 201 is fixedly installed at the top of the pump base 202. The pump suction port pipe 201 consists of a pump suction port connector 214, a connector gland 215, a connector 213, and a fastener 216. The pump discharge port pipe 207 is fixedly installed at the top of the pump base 202. The pump discharge port pipe 207 consists of a pump discharge port connector 210, a connector sleeve 211, an eccentric pad assembly 212, and a connector 213.

[0032] An eccentric pad assembly 212 is designed at the connection of the pump suction port pipeline 201. The threads of the gear pump and the two end connectors 213 are tapered threads, and the screwing depth is uncontrollable. The eccentric pad assembly 212 serves to adjust the center distance between the pump suction port pipeline 201 and the pump discharge port pipeline 207 and the ground.

[0033] Reference Figure 2 , Figure 3 The gear pump device 103 is equipped with a check valve 203 as an overflow valve, and the check valve 203 is connected to the pump outlet pipeline 207.

[0034] By setting a one-way valve 203 as an overflow valve, the entire cooling system is protected. When the system pressure is exceeded, overflow occurs here.

[0035] The implementation principle of the built-in lubrication and cooling system of the cutting reducer of the horizontal shaft tunneling machine in this embodiment is as follows: The motor drives the cutting reducer transmission system to transmit to the large lubrication gear, which in turn drives the small lubrication gear to rotate, driving the gear pump main shaft to rotate. No additional power source is required. The gear pump device 103 draws high-temperature lubricating oil into the suction pipe 101, and through the suction pipe and the connecting hose 102 between the gear pump suction port and the cooling outlet and the oil sump, it enters the cooling unit 110, thereby reducing the temperature of the lubricating oil in the reducer. The cooled lubricating oil is then transported to the connecting block 105 through the connecting hose 106 between the connecting block and the cooling unit inlet. A portion of the cooled oil passes through... The oil is fed to the corresponding oil passages in the reducer housing below the connecting block, and lubricates the corresponding gears and bearings through each oil circuit; a portion is sent to the lubricating oil sump through the gear pump suction port and the connecting block connecting hose 104; a one-way valve 203 is provided as an overflow valve to protect the entire cooling system. When the system pressure is exceeded, overflow occurs here. The one-way valve 203 is connected to the pump outlet pipe 207. An eccentric pad assembly 212 is designed at the connection of the pump suction port pipe 201. The threads of the gear pump and the two end connectors 213 are tapered threads, and the screwing depth is uncontrollable. The eccentric pad assembly 212 serves to adjust the center distance between the pump suction port pipe 201 and the pump outlet pipe 207 and the ground.

[0036] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A built-in lubrication and cooling system for a cutting reducer of a horizontal shaft tunneling machine, characterized in that: Includes an oil suction pipe (101), a hose connecting the oil suction pipe to the gear pump oil suction port (102), a gear pump assembly (103), a hose connecting the gear pump oil suction port to the connecting block (104), a connecting block (105), a hose connecting the connecting block to the cooler oil inlet (106), a hose connecting the cooler oil outlet to the oil sump (107), a cooling water inlet pipe (108), a cooling water outlet pipe (109), a cooler (110), and a reducer housing (111); The internal oil circuit of the gear pump unit (103) is arranged in a U-shape, including the pump suction port pipeline (201), pump base (202), check valve (203), lubrication pinion (204), gear pump (205), cooling oil return port (206), pump outlet pipeline (207), vent plug (208), and lifting ring (209). The gear pump device (103) is equipped with a check valve (203) as an overflow valve, and the check valve (203) is connected to the pump outlet pipeline (207).

2. The built-in lubrication and cooling system for the cutting reducer of a horizontal shaft tunneling machine according to claim 1, characterized in that: The gear pump (205) is fixedly installed at the bottom of the pump base (202). The power of the gear pump (205) is transmitted from the cutting motor to the cutting reducer transmission system to the lubrication gear, which in turn drives the lubrication gear (204) to rotate, thereby driving the main shaft of the gear pump (205) to rotate. No additional power source is required.

3. The built-in lubrication and cooling system of the cutting reducer of a horizontal shaft tunneling machine according to claim 2, characterized in that: The gear pump device (103) is connected to the oil suction pipe (101) via an oil suction pipe and a gear pump oil suction port connecting hose (102). The gear pump device (103) is connected to the cooler (110) via a cooler oil outlet and an oil sump connecting hose (107).

4. The built-in lubrication and cooling system of the cutting reducer of a horizontal shaft tunneling machine according to claim 3, characterized in that: The cooled lubricating oil is transported to the connecting block (105) through the connecting block and the cooler oil inlet connecting hose (106), and the cooled lubricating oil is sent to the lubricating oil pool through the gear pump suction port and the connecting block connecting hose (104).

5. The built-in lubrication and cooling system for the cutting reducer of a horizontal shaft tunneling machine according to claim 4, characterized in that: The oil suction pipe (101) is welded to the rear of the reducer housing (111), away from the working mechanism end located directly in front.

6. The built-in lubrication and cooling system for the cutting reducer of a horizontal shaft tunneling machine according to claim 5, characterized in that: The pump suction port pipeline (201) is fixedly installed at the top of the pump base (202). The pump suction port pipeline (201) consists of a pump suction port connector (214), a connector cap (215), a connector (213), and fasteners (216). The pump outlet pipeline (207) is fixedly installed at the top of the pump base (202). The pump outlet pipeline (207) consists of a pump outlet connector (210), a connector sleeve (211), an eccentric pad assembly (212), and a connector (213).

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