Hydraulic pump for raise boring machine

Abstract

The invention discloses a hydraulic pump for a raise boring machine, and belongs to the technical field of hydraulic pump equipment. Comprising a main body, an engine and a connecting pipe fitting are installed on the main body, and the connecting pipe fitting is connected with an oil-way pipeline; the temperature adjusting oil box is arranged on the main body, and a thermoelectric refrigeration sheet capable of sliding and ascending and descending is mounted on the temperature adjusting oil box; the number of the heat conducting sheets is two; the two temperature adjusting cavities are arranged in the temperature adjusting oil box; a temperature adjusting mechanism is arranged in the pipe connecting piece and used for adjusting the temperature of the hydraulic oil when the temperature of the hydraulic oil in the body is too low or too high. The hydraulic pump for the raise boring machine has the beneficial effects that through the arrangement of the thermoelectric refrigeration piece and the temperature adjusting oil box, when the temperature of hydraulic oil is too high, refrigeration is conducted on one side of the thermoelectric refrigeration piece, then the temperature of fins on a heat conduction piece on one side is low, a set of heat dissipation fins are cooled, and the heat dissipation efficiency is improved; and then the temperature of the hydraulic oil in one temperature adjusting cavity is reduced, and the oil flows between the temperature adjusting cavity and the pipe connecting piece, so that the temperature is reduced.

Description

Technical Field

[0001] This application relates to the field of hydraulic pump equipment technology, and more specifically, to a hydraulic pump for a well drilling rig. Background Technology

[0002] A well drilling rig is a type of mechanical equipment used for shaft excavation that utilizes rotary drilling to break rocks and create holes, and can also reverse the hole to enlarge it. It is mainly used for the construction of vertical shafts or wells in mining, tunnel and other engineering projects. The power of a well drilling rig is mainly hydraulic. The hydraulic pump station is the power source in the hydraulic system, which is mainly responsible for converting mechanical energy into hydraulic energy and providing power for the entire hydraulic system. It mainly consists of a hydraulic pump unit, temperature control component, oil tank component, accumulator, and filter component. Among them, the temperature control component is the most important part. Due to the difficulty of airflow in underground tunnels and the low temperature at depth, the operating environment of the hydraulic pump experiences significant temperature variations. When not in operation or operating at low power, the low air temperature may cause the hydraulic pump to overheat, resulting in hydraulic oil condensation and affecting normal use. When operating under high load, the lack of airflow makes it difficult to cool the hydraulic pump, leading to excessively high hydraulic oil temperature. Since the well drilling rig needs to frequently adjust the drilling position during drilling, it frequently switches between low power or no operation and high power operation, resulting in frequent temperature changes. Existing temperature control components are insufficient to regulate the temperature of the hydraulic pump under different conditions, and frequent adjustments can easily lead to energy waste.

[0003] Therefore, a hydraulic pump for well drilling rigs is needed to solve the above problems. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a hydraulic pump for a well drilling rig, comprising: a main body on which an engine and connecting pipes are mounted, the connecting pipes being connected to oil pipelines; a temperature regulating oil box disposed on the main body, on which a sliding and lifting thermoelectric cooling plate is mounted, the thermoelectric cooling plate having a heating side and a cooling side; two heat-conducting plates, respectively fixed to the cooling side and heating side of the thermoelectric cooling plate, the heat-conducting plates having multiple fins; and two temperature regulating cavities disposed within the temperature regulating oil box, the two temperature regulating cavities being located below the two heat-conducting plates, the temperature regulating cavities having an end extension... A set of heat dissipation fins is provided in the temperature regulating oil box; each set of heat dissipation fins includes multiple fins arranged in an array, and the fins of the heat-conducting fins are staggered with the heat dissipation fins, so that the fins on the heat-conducting fins are inserted into the gaps between the heat dissipation fins; a first oil outlet pipe, a second oil outlet pipe, a second oil inlet pipe, and a first oil inlet pipe are provided between the connecting pipe and the temperature regulating oil box, wherein the second oil outlet pipe and the first oil inlet pipe are connected to a temperature regulating cavity and the connection points are respectively located on both sides of the temperature regulating cavity; the first oil outlet pipe and the second oil inlet pipe are connected to another temperature regulating cavity and the connection points are respectively located on both sides of the temperature regulating cavity; a temperature regulating mechanism is provided inside the connecting pipe to adjust the hydraulic oil temperature when the hydraulic oil temperature in the main body is too low or too high.

[0006] Furthermore, the temperature control mechanism includes: an oil inlet connected to a connecting pipe fitting; an oil inlet chamber communicating with the oil inlet within the connecting pipe fitting; a first channel and a second channel communicating with the oil inlet chamber within the connecting pipe fitting; a first oil outlet pipe connected to the second channel and a second oil outlet pipe connected to the first channel; a converging chamber within the connecting pipe fitting connected to an oil pipeline; a third channel and a fourth channel communicating with the converging chamber within the connecting pipe fitting; a second oil inlet pipe connected to the fourth channel and a first oil inlet pipe connected to the third channel; a rotating shaft rotatably mounted within the oil inlet chamber; a fan-shaped component sleeved on the rotating shaft within the oil inlet chamber; the fan-shaped component rotatably connected to the rotating shaft; the fan-shaped component has two states: in the first state, the fan-shaped component isolates the connection between the first channel and the oil inlet chamber, at which time the oil inlet chamber is connected to the second channel; in the second state, the fan-shaped component isolates the connection between the oil inlet chamber and the second channel, at which time the oil inlet chamber is connected to the first channel.

[0007] Furthermore, an L-shaped rod is fixedly installed on the rotating shaft, and an arc-shaped groove is opened on the fan-shaped part. One end of the L-shaped rod is embedded in the arc-shaped groove, and a deformation spring is connected between the part of the L-shaped rod embedded in the arc-shaped groove and the side wall of the arc-shaped groove. The two ends of the deformation spring are fixedly connected to the side wall of the arc-shaped groove and the L-shaped rod, respectively.

[0008] Furthermore, a gear is fixedly installed at one end of the rotating shaft extending from the connecting pipe, an electric telescopic rod is fixedly installed on the connecting pipe, a connecting plate is fixedly connected to one end of the telescopic rod, a rack that meshes with the gear is fixedly connected to the connecting plate, a temperature sensor is installed inside the connecting pipe, and the temperature sensor is electrically connected to the electric telescopic rod.

[0009] Furthermore, two magnets are fixedly connected to the side wall of the oil inlet chamber. The two magnets are located on both sides of the sector-shaped component. When the sector-shaped component is in the first state, one of the magnets contacts and attracts the sector-shaped component; when the sector-shaped component is in the second state, the other magnet contacts and attracts the sector-shaped component.

[0010] Furthermore, a winding wheel is fixedly installed at one end of the rotating shaft extending from the connecting pipe. Two steel wire ropes are fixedly connected to the side wall of the winding wheel. A guide rod is fixedly connected to the main body. The guide rod slides with the thermoelectric cooling element. A return spring is installed between the thermoelectric cooling element and the temperature regulating oil box.

[0011] Furthermore, two sets of guide wheels are rotatably installed on the main body, and the steel wire rope is fixedly connected to one end of the thermoelectric cooling element after being guided by the guide wheels.

[0012] Furthermore, the thermoelectric cooler is equipped with a power connector, and the temperature regulating oil box is equipped with a power interface located directly opposite the power connector. The thermoelectric cooler has a bottom position and a top position. When the thermoelectric cooler is in the bottom position, the power connector is inserted into the power interface and connected to the power interface. At this time, the thermoelectric cooler is energized, and the return spring is in a compressed state. When the thermoelectric cooler is in the top position, the power connector is not inserted into the power interface, and the heat-conducting plate is located on the top of the heat dissipation fins.

[0013] The beneficial effects of this application are as follows: 1. Through the thermoelectric cooling element and temperature-regulating oil box, when the hydraulic oil temperature is too high, the thermoelectric cooling element is positioned at its lowest point. This activates the thermoelectric cooling element, causing cooling on one side of the element. This lowers the temperature of the fins on that side's heat-conducting plate, thus reducing the temperature of a set of heat dissipation fins and consequently lowering the temperature of the hydraulic oil in one temperature-regulating chamber. The hydraulic oil then flows between this chamber and the connecting pipe, achieving cooling. Similarly, when the hydraulic oil temperature is too low, the thermoelectric cooling element heats the hydraulic oil in another temperature-regulating chamber through the heat-conducting plate on the other side, thereby maintaining the hydraulic oil temperature and preventing condensation.

[0014] 2. With two temperature-regulating chambers, when the thermoelectric cooling element cools the hydraulic oil in one chamber, it heats and maintains the temperature of the hydraulic oil in the other chamber until the hydraulic oil temperature is too low and needs to be raised. At this time, the chamber with the higher-temperature hydraulic oil participates in the oil flow, raising the overall temperature of the hydraulic oil. The same principle applies when the thermoelectric cooling element raises the temperature, thus avoiding energy waste when the engine thermoelectric cooling element regulates the temperature of the hydraulic oil.

[0015] 3. With the heat dissipation fins and heat conduction plates set up, when the thermoelectric cooling chip is not adjusting the temperature, the heat conduction plates are located on the upper side of the heat dissipation fins. At this time, the gaps between the heat dissipation fins form an air channel, which can achieve natural cooling. When the heat conduction plates move downward, the fins that are in contact with the heat dissipation fins can scrape off the dust attached to the heat dissipation fins, so as to prevent the dust from affecting the natural cooling. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram: Figure 1 This is an overall schematic diagram according to one embodiment of the present application; Figure 2 yes Figure 1 The installation diagram of the temperature regulating oil box in the embodiment is shown below; Figure 3 yes Figure 1 The installation diagram of the separator component in the embodiment is shown below; Figure 4 yes Figure 1 The installation diagram of the electric telescopic pole in the embodiment is shown below; Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle; Figure 6 yes Figure 1 A schematic diagram of the position of the sector component in the first state in the embodiment; Figure 7 yes Figure 1 The installation diagram of the thermoelectric cooling element in the embodiment is shown below. Figure 8 yes Figure 1 A schematic diagram of the temperature control cavity in the embodiment. Figure Labels

[0019] 10. Main body; 11. Engine; 12. Connecting pipe; 13. Temperature regulating oil box; 14. Thermoelectric cooling element; 15. Oil inlet; 16. Oil inlet chamber; 17. Converging chamber; 18. First oil outlet pipe; 19. Second oil outlet pipe; 20. Second oil inlet pipe; 21. First oil inlet pipe; 22. Separating assembly; 23. Rotating shaft; 24. Gear; 25. Electric telescopic rod; 26. Connecting plate; 27. Rack; 28. Sector Components; 29. ​​L-shaped rod; 30. Arc groove; 31. Deformation spring; 32. Magnet; 33. First channel; 34. Second channel; 35. Third channel; 36. Fourth channel; 37. Baffle plate; 38. Winding wheel; 39. Steel wire rope; 40. Heat dissipation fins; 41. Guide rod; 42. Guide wheel; 43. Heat-conducting plate; 44. Power plug; 45. Power interface; 46. Temperature regulating chamber; 47. Return spring. Detailed Implementation

[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0021] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0022] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1-8A hydraulic pump for a well drilling rig includes: a main body 10, an engine 11, a connecting pipe 12, a temperature-regulating oil box 13, and a thermoelectric cooling element 14. The engine 11 and the connecting pipe 12 are mounted on the main body 10. The connecting pipe 12 has an interface for connecting to oil pipes and an oil inlet 15. During operation, the engine 11 provides power, and hydraulic oil flows between the oil inlet 15 and the oil pipes. The specific structure can be referenced from existing hydraulic pump products. A temperature-regulating oil box 13 is mounted on the main body 10. The temperature-regulating oil box 13 has two temperature-regulating chambers 46. Each temperature-regulating chamber 46 has a set of heat dissipation fins 40 extending out of the temperature-regulating oil box 13. Each set of heat dissipation fins 40 includes multiple fins arranged in an array. A sliding and lifting thermoelectric cooling element 14 is mounted on the temperature-regulating oil box 13. The thermoelectric cooling element 14 has a heating side and a cooling side. Both the cooling and heating sides of the thermoelectric cooler 14 are fitted with heat-conducting plates 43, each with an array of fins. Two temperature-regulating cavities 46 are located below the two heat-conducting plates 43. The thermoelectric cooler 14 has a lowermost position and a highermost position. When the thermoelectric cooler 14 is in the lowermost position, the fins on the heat-conducting plates 43 and the heat-dissipating fins 40 are alternately distributed and are in close contact with each other. A first oil outlet pipe 18, a second oil outlet pipe 19, a second oil inlet pipe 20, and a first oil inlet pipe 21 are connected between the connecting pipe 12 and the temperature-regulating oil box 13. The second oil outlet pipe 19 and the first oil inlet pipe 21 are connected to one temperature-regulating cavity 46, and the connection points are located on both sides of the temperature-regulating cavity 46, respectively. The connection points of the first oil outlet pipe 18 and the second oil inlet pipe 20 to the other temperature-regulating cavity 46 are located on both sides of the temperature-regulating cavity 46, respectively. Hydraulic oil flows between the connecting pipe 12 and the temperature regulating chamber 46 through the first oil outlet pipe 18, the second oil outlet pipe 19, the second oil inlet pipe 20, and the first oil inlet pipe 21. The connecting pipe 12 also has a converging chamber 17 connected to the oil pipeline. The connecting pipe 12 also has an oil inlet chamber 16 connected to the oil inlet 15. The connecting pipe 12 has a first channel 33 and a second channel 34 connected to the oil inlet chamber 16. The first oil outlet pipe 18 is connected to the second channel 34, and the second oil outlet pipe 19 is connected to the first channel 33. The connecting pipe 12 also has a converging chamber 17 connected to the oil pipeline. The connecting pipe 12 also has a third channel 35 and a fourth channel 36 connected to the converging chamber 17. The second oil inlet pipe 20 is connected to the fourth channel 36, and the first oil inlet pipe 21 is connected to the third channel 35.

[0026] Specifically, the connecting pipe 12 has an oil inlet chamber 16 communicating with the oil inlet 15. The connecting pipe 12 also has a first channel 33 and a second channel 34 communicating with the oil inlet chamber 16. The first oil outlet pipe 18 is connected to the second channel 34, and the second oil outlet pipe 19 is connected to the first channel 33. The connecting pipe 12 also has a converging chamber 17 connected to the oil pipeline. The connecting pipe 12 also has a third channel 35 and a fourth channel 36. The second oil inlet pipe 20 is connected to the fourth channel 36, and the first oil inlet pipe 21 is connected to the third channel 35. It is easy to understand that when hydraulic oil enters the oil inlet chamber 16 from the oil inlet 15, in one scenario, the oil flows through the second oil outlet pipe 19 into a temperature regulating chamber 46, and then flows back to the converging chamber 17 through the first oil inlet pipe 21, subsequently flowing into the oil pipeline or flowing in the reverse direction. In another case, the oil flows through the first oil outlet pipe 18 into another temperature regulating chamber 46, and then flows back to the converging chamber 17 through the second oil inlet pipe 20 and then flows into the oil pipeline or flows in the reverse direction.

[0027] When the hydraulic oil temperature is too high, the thermoelectric cooler 14 is positioned at its lowest point, activating it and cooling one side. This lowers the temperature of the fins on the heat-conducting fins 43, reducing the temperature of a set of heat dissipation fins 40. Consequently, the hydraulic oil temperature in one temperature-regulating chamber 46 decreases, allowing the hydraulic oil to flow between the temperature-regulating chamber 46 and the connecting pipe 12, thus achieving cooling. Similarly, when the hydraulic oil temperature is too low, the thermoelectric cooler 14 heats the hydraulic oil in another temperature-regulating chamber 46 through the heat-conducting fins 43 on the other side, ensuring the hydraulic oil temperature is maintained and preventing condensation.

[0028] A rotating shaft 23 is rotatably mounted inside the oil inlet chamber 16. A sector-shaped component 28 is sleeved on the rotating shaft 23 and located within the oil inlet chamber 16. The sector-shaped component 28 is rotatably connected to the rotating shaft 23. The sector-shaped component 28 has two states. In the first state, the sector-shaped component 28 isolates the connection between the first channel 33 and the oil inlet chamber 16, and the oil inlet chamber 16 is connected to the second channel 34. In the second state, the sector-shaped component 28 isolates the connection between the oil inlet chamber 16 and the second channel 34, and the oil inlet chamber 16 is connected to the first channel 33. When the sector-shaped component 28 is in the first state, hydraulic oil cannot flow out through the second oil outlet pipe 19, but flows out through the first oil outlet pipe 18. When the sector-shaped component 28 is in the second state, hydraulic oil cannot flow out through the first oil outlet pipe 18, but flows out through the second oil outlet pipe 19.

[0029] In one embodiment, an L-shaped rod 29 is fixedly mounted on the rotating shaft 23, and an arc-shaped groove 30 is formed on the fan-shaped component 28. One end of the L-shaped rod 29 is embedded in the arc-shaped groove 30, and a deformation spring 31 is connected between the portion of the L-shaped rod 29 embedded in the arc-shaped groove 30 and the side wall of the arc-shaped groove 30. Both ends of the deformation spring 31 are fixedly connected to the side wall of the arc-shaped groove 30 and the L-shaped rod 29, respectively. A gear 24 is fixedly mounted on one end of the rotating shaft 23 extending out of the connecting pipe 12. An electric telescopic rod 25 is fixedly mounted on the connecting pipe 12. A connecting plate 26 is fixedly connected to one end of the telescopic rod of the electric telescopic rod 25. A rack 27 that meshes with the gear 24 is fixedly connected to the connecting plate 26. A temperature sensor is installed inside the main body 10 and is electrically connected to the electric telescopic rod 25.

[0030] In one embodiment, two magnets 32 are fixedly connected to the side wall of the oil inlet chamber 16. The two magnets 32 are located on both sides of the sector member 28. When the sector member 28 is in the first state, one of the magnets 32 contacts the sector member 28 and attracts the sector member 28. When the sector member 28 is in the second state, the other magnet 32 ​​contacts the sector member 28 and attracts the sector member 28.

[0031] In the above embodiments, the electric telescopic rod 25 has an extended state (extended to a certain size), a shortened state (shortened to a certain size), and an intermediate state between the extended and shortened states. When the temperature sensor detects that the hydraulic oil temperature is below a threshold, the electric telescopic rod 25 is controlled to adjust to the extended state; when the temperature sensor detects that the hydraulic oil temperature is above a threshold, the electric telescopic rod 25 is controlled to adjust to the shortened state; when the temperature sensor detects that the hydraulic oil temperature is between the two thresholds, the electric telescopic rod 25 is in the intermediate state. When the electric telescopic rod 25 is adjusted to the shortened state, it will drive the rotating shaft 23 to rotate through the rack 27, which will then abut against the side end wall of the arc groove 30 and push the fan-shaped part 28 to the first state. This allows the hydraulic oil to flow through the second channel 34 and the first oil outlet pipe 18 into a temperature regulating chamber 46 for cooling, and then flow back to the converging chamber 17 through the second oil inlet pipe 20. When the hydraulic oil temperature gradually returns to between the two threshold values, the electric telescopic rod 25 is adjusted to the intermediate state. At this time, due to the attraction of the magnet 32, the fan-shaped part 28 continues to be in the first state, and the deformation spring 31 deforms.

[0032] In one embodiment, a winding wheel 38 is fixedly installed at one end of the rotating shaft 23 extending from the connecting pipe 12. Two steel wire ropes 39 are fixedly connected to the side wall of the winding wheel 38. A guide rod 41 is fixedly connected to the main body 10. The guide rod 41 is in sliding engagement with the thermoelectric cooling element 14. A return spring 47 is connected between the thermoelectric cooling element 14 and the temperature regulating oil box 13. The two ends of the return spring 47 are fixedly connected to the thermoelectric cooling element 14 and the temperature regulating oil box 13, respectively. Two sets of guide wheels 42 are rotatably installed on the main body 10. After being guided by the guide wheels 42, the steel wire ropes 39 are fixedly connected to one end of the thermoelectric cooling element 14.

[0033] In the above embodiment, when the electric telescopic rod 25 is in the middle state, the thermoelectric cooling element 14 is in the uppermost position under the support of the return spring 47. When the electric telescopic rod 25 is in the extended or shortened state, the thermoelectric cooling element 14 is pulled by the winding wheel 38 and the wire rope 39, so that the thermoelectric cooling element 14 moves to the lower position, at which time the return spring 47 is compressed.

[0034] The thermoelectric cooling element 14 is provided with a power plug 44, and the temperature regulating oil box 13 is provided with a power interface 45 located directly opposite the power plug 44. When the thermoelectric cooling element 14 is in the lowest position, the power plug 44 is inserted into the power interface 45 and connected to the power interface 45, at which time the thermoelectric cooling element 14 is powered on.

[0035] Operation or installation process: In the initial state, the thermoelectric cooling element 14 is located at the top, and the electric telescopic rod 25 is in the middle state.

[0036] 1. When the hydraulic oil temperature is too high due to high power operation, the temperature sensor detects a temperature higher than a threshold. The electric telescopic rod 25 is then adjusted to the shortened state. At this time, the rack 27 drives the rotating shaft 23 to rotate, which in turn drives the gear 24 to rotate, causing the L-shaped rod 29 to move and push the sector 28 to the first state. The hydraulic oil flows through the second channel 34 and the first oil outlet pipe 18 into the temperature regulating chamber 46 located on the cooling side of the thermoelectric cooling chip 14. At the same time, the rotating shaft 23 drives the winding wheel 38 to wind the steel wire rope 39, causing the steel wire rope 39 to pull the thermoelectric cooling chip 14 downward to the lowest position. At this time, the thermoelectric cooling chip 14 is energized to heat the temperature regulating chamber 46 on one side and cool the temperature regulating chamber 46 on the other side. At this time, the hydraulic oil in the heated temperature regulating chamber 46 does not flow, storing the heat. The hydraulic oil gradually returns to between the two thresholds, and then the electric telescopic rod 25 returns to the middle state. At this time, the oil keeps the sector 28 in the first state under the action of the magnet 32. When the electric telescopic rod 25 returns to the middle position, the thermoelectric cooling element 14 returns to the uppermost position under the action of the return spring 47. 2. When the drilling rig needs to be repositioned after working for a period of time, the hydraulic pump is at low power or not working, and the hydraulic oil temperature is too low or the oil condenses. At this time, when the temperature sensor detects that the temperature is below a threshold, it controls the electric telescopic rod 25 to be adjusted to the extended state, so that the L-shaped rod 29 moves and pushes the fan-shaped part 28 to the second state. The hydraulic oil in the temperature regulating chamber 46 with higher temperature hydraulic oil starts to flow between the connecting pipe 12, which heats up the hydraulic oil. At the same time, the thermoelectric cooling element 14 moves to the lowest position under the action of the wire rope 39 and starts to adjust the temperature, heating one side of the temperature regulating chamber 46 and cooling the other side of the temperature regulating chamber 46 until the hydraulic pump returns to high power operation. The hydraulic oil in the lower temperature regulating chamber 46 continues to participate in temperature control to avoid energy waste.

[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A hydraulic pump for a roof bolter, characterized by: Include: The main body (10) is provided with an engine (11) and a connecting pipe (12) connected to the oil circuit pipeline; The temperature adjusting oil box (13) is arranged on the main body (10), and the thermoelectric refrigeration piece (14) is arranged on the temperature adjusting oil box (13) and slides up and down. The thermoelectric refrigeration piece (14) has a heating side and a cooling side; The heat conduction piece (43) is provided with two heat conduction pieces, which are respectively fixed on the cooling side and the heating side of the thermoelectric refrigeration piece (14), and a plurality of fins are arranged on the heat conduction piece (43); The temperature adjusting cavity (46) is arranged in the temperature adjusting oil box (13), and the two temperature adjusting cavities (46) are respectively located on the lower side of the two heat conduction pieces (43). A group of heat dissipation fins (40) are arranged on the temperature adjusting cavity (46) and extend out of the temperature adjusting oil box (13); Each group of heat dissipation fins (40) includes a plurality of arrayed fins, and the fins of the heat conduction piece (43) are spaced and staggered with the heat dissipation fins (40), so that the fins on the heat conduction piece (43) are inserted into the gap between the heat dissipation fins (40); The first oil outlet pipe (18), the second oil outlet pipe (19), the second oil inlet pipe (20) and the first oil inlet pipe (21) are arranged between the connecting pipe (12) and the temperature adjusting oil box (13). The second oil outlet pipe (19) and the first oil inlet pipe (21) are connected with one temperature adjusting cavity (46) and the connection positions are respectively located on the two sides of the temperature adjusting cavity (46); the first oil outlet pipe (18) and the second oil inlet pipe (20) are connected with the other temperature adjusting cavity (46) and the connection positions are respectively located on the two sides of the temperature adjusting cavity (46); The connecting pipe (12) is provided with a temperature adjusting mechanism for adjusting the temperature of the hydraulic oil when the temperature of the hydraulic oil in the main body (10) is too low or too high.

2. The hydraulic pump for the rig drill according to claim 1, wherein: The temperature adjusting mechanism comprises: The oil inlet (15) is connected to the connecting pipe (12), the connecting pipe (12) is provided with an oil inlet cavity (16) communicated with the oil inlet (15), the connecting pipe (12) is formed with a first channel (33) and a second channel (34) communicated with the oil inlet cavity (16), wherein the first oil outlet pipe (18) is connected to the second channel (34), the second oil outlet pipe (19) is connected to the first channel (33), and the connecting pipe (12) is also provided with a converging cavity (17) connected to an oil circuit pipeline, the connecting pipe (12) is formed with a third channel (35) and a fourth channel (36) communicated with the converging cavity (17), wherein the second oil inlet pipe (20) is connected to the fourth channel (36), and the first oil inlet pipe (21) is connected to the third channel (35); the rotating shaft (23) is rotatably arranged in the oil inlet cavity (16), the fan-shaped part (28) is arranged on the rotating shaft (23) and located in the oil inlet cavity (16), the fan-shaped part (28) is rotatably connected to the rotating shaft (23), and the fan-shaped part (28) has two states, in the first state, the fan-shaped part (28) blocks the connection between the first channel (33) and the oil inlet cavity (16), and at this time, the oil inlet cavity (16) is communicated with the second channel (34); in the second state, the fan-shaped part (28) blocks the connection between the oil inlet cavity (16) and the second channel (34), and at this time, the oil inlet cavity (16) is communicated with the first channel (33).

3. The hydraulic pump for a raise borer according to claim 2, characterized in that: the L-shaped rod (29) is fixedly arranged on the rotating shaft (23), the arc-shaped groove (30) is arranged on the fan-shaped part (28), one end of the L-shaped rod (29) is embedded into the arc-shaped groove (30), the shape-changing spring (31) is arranged between the portion of the L-shaped rod (29) embedded into the arc-shaped groove (30) and the side wall of the arc-shaped groove (30), and the two ends of the shape-changing spring (31) are fixedly connected with the side wall of the arc-shaped groove (30) and the L-shaped rod (29) respectively.

4. The hydraulic pump for a raise borer according to claim 3, characterized in that: the gear (24) is fixedly arranged on one end of the rotating shaft (23) extending out of the connecting pipe (12), the electric telescopic rod (25) is fixedly arranged on the connecting pipe (12), the connecting plate (26) is fixedly connected to one end of the telescopic rod of the electric telescopic rod (25), the rack (27) engaged with the gear (24) is fixedly connected to the connecting plate (26), the temperature sensor is arranged in the connecting pipe (12), and the temperature sensor is electrically connected with the electric telescopic rod (25).

5. The hydraulic pump for a raise borer according to claim 4, characterized in that: Two magnets (32) are fixedly connected to the side wall of the oil inlet chamber (16). The two magnets (32) are located on both sides of the fan-shaped part (28). When the fan-shaped part (28) is in the first state, one of the magnets (32) contacts the fan-shaped part (28) and attracts the fan-shaped part (28). When the fan-shaped part (28) is in the second state, the other magnet (32) contacts the fan-shaped part (28) and attracts the fan-shaped part (28).

6. A hydraulic pump for a well drilling rig according to claim 5, characterized in that: A winding wheel (38) is fixedly installed at one end of the rotating shaft (23) extending out of the connecting pipe (12). Two steel wire ropes (39) are fixedly connected to the side wall of the winding wheel (38). A guide rod (41) is fixedly connected to the main body (10). The guide rod (41) slides with the thermoelectric cooling plate (14). A reset spring (47) is connected between the thermoelectric cooling plate (14) and the temperature regulating oil box (13).

7. A hydraulic pump for a well drilling rig according to claim 6, characterized in that: Two sets of guide wheels (42) are rotatably mounted on the main body (10). The steel wire rope (39) is guided by the guide wheels (42) and then fixedly connected to one end of the thermoelectric cooling plate (14).

8. A hydraulic pump for a well drilling rig according to claim 1, characterized in that: The thermoelectric cooling chip (14) is provided with a power connector (44), and the temperature regulating oil box (13) is provided with a power interface (45) located directly opposite the power connector (44). The thermoelectric cooling chip (14) has a bottom position and a top position. When the thermoelectric cooling chip (14) is in the bottom position, the power connector (44) is inserted into the power interface (45) and connected to the power interface (45). At this time, the thermoelectric cooling chip (14) is energized, and the return spring (47) is in a compressed state. When the thermoelectric cooling chip (14) is in the top position, the power connector (44) is not inserted into the power interface (45), and the heat-conducting plate (43) is located on the top side of the heat dissipation fins (40).

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