Gas-water lubricating system for rock drilling equipment

Abstract

The utility model discloses a gas-water lubricating system for rock drilling equipment, and relates to the field of engineering machinery, the gas-water lubricating system comprises a pre-water inlet unit, a water path unit, a gas inlet unit, a gas path unit and a first lubricating unit; the characteristics of combination of gas, water and lubrication are fully exerted, on one hand, gas provided by the gas inlet unit and lubricating oil of the first lubricating unit can lubricate the first preset position (such as a rock drill head) of rock drilling equipment, and on the other hand, slag removal can be conducted on the first preset position through the gas path unit; the water washing function and the air blowing function can be switched according to needs, meanwhile, air of the air inlet unit can enter the water way unit from the input end of the water way unit to blow the water way unit, and residual water in the water way is prevented from freezing in winter.

Description

Technical Field

[0001] The present application relates to the field of engineering machinery, and in particular to an air-water lubrication system for rock drilling equipment. Background Art

[0002] Rock drills require a water supply and lubrication system to cool and lubricate the drill head and drill rod during drilling operations. Due to the unstable water pressure in mines, which sometimes exceeds 2 MPa (megapascals), using this directly as a water source for the drill can easily damage the water pump. Designing and optimizing the water and lubrication systems of rock drills to meet diverse operational needs is a pressing technical challenge in this field. Utility Model Content

[0003] An embodiment of the present application provides an air-water lubrication system for rock drilling equipment, which can achieve the functions of lubrication, slag cleaning and water washing.

[0004] The present application provides an air-water lubrication system for rock drilling equipment, comprising a pre-water inlet unit, a water circuit unit, an air inlet unit, an air circuit unit and a first lubrication unit; the output end of the pre-water inlet unit is connected to the input end of the water circuit unit, and water is supplied to the water circuit unit through the pre-water inlet unit; the output end of the water circuit unit is connected to a first predetermined position of the rock drilling equipment, and the water circuit unit is used to supply water to the first predetermined position; the output end of the air inlet unit is connected to the air circuit unit, and the air inlet unit is used to supply air to the air circuit unit, and the output end of the air circuit unit is respectively connected to the first predetermined position and the input end of the water circuit unit; the first lubrication unit comprises a mixing unit and a first grease pump; the input end of the mixing unit is connected to the output end of the air inlet unit, and the output end of the mixing unit is connected to the first predetermined position; the first grease pump is connected to the mixing unit.

[0005] The air-water lubrication system for rock drilling equipment of the present application has at least the following beneficial effects:

[0006] The air-water lubrication system of the present application includes a pre-water inlet unit, a water circuit unit, an air inlet unit, an air circuit unit and a first lubrication unit; the present application gives full play to the characteristics of the combination of air, water and lubrication. On the one hand, the gas provided by the air inlet unit can lubricate the first predetermined position of the rock drilling equipment (such as the rock drill head) together with the lubricating oil of the first lubrication unit. On the other hand, the first predetermined position can also be cleared of slag through the air circuit unit. The two functions of water washing and air blowing can be switched as needed. At the same time, the gas of the air inlet unit can also enter the water circuit unit from the input end of the water circuit unit to purge the water circuit unit to prevent the residual water in the water circuit from freezing in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0008] Figure 1 It is a schematic diagram of the air-water lubrication system in this application;

[0009] Figure 2 This is another schematic diagram of the air-water lubrication system in this application;

[0010] The description of the reference numerals is as follows: 10, pre-water inlet unit; 11, first ball valve; 12, filter; 13, first overflow valve; 14, cooler; 15, first pressure monitoring component; 16, first solenoid valve;

[0011] 20. Water circuit unit; 21. Water pump; 22. Second solenoid valve; 23. Second overflow valve; 24. Second pressure monitoring component; 25. Third pressure monitoring component; 26. Second ball valve;

[0012] 30. Air intake unit; 31. Air pump; 32. Air storage tank; 33. Pressure regulator; 34. Third relief valve;

[0013] 35. Drain valve;

[0014] 40. Air circuit unit; 41. Fifth solenoid valve; 42. Third ball valve; 43. First one-way valve; 44. Second one-way valve;

[0015] 50. First lubrication unit; 51. Mixing unit; 52. First grease pump; 53. Third solenoid valve;

[0016] 60. Second lubrication unit; 61. Fourth solenoid valve; 62. Injection valve; 63. Second grease pump.

[0017] 70. First predetermined position;

[0018] 80. Second predetermined position. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0020] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0021] like Figure 1 As shown, this embodiment discloses an air-water lubrication system for rock drilling equipment, including a pre-water inlet unit 10, a water circuit unit 20, an air inlet unit 30, an air circuit unit 40, a first lubrication unit 50, and a second lubrication unit 60, specifically as follows:

[0022] like Figure 2 As shown, the pre-water inlet unit 10 is connected to an external water source and is used to supply water to the system (of course, other media can also be provided, and water is used as an example in this embodiment). The pre-water inlet unit 10 includes a first ball valve 11, a filter 12, a first relief valve 13, a cooler 14, a first pressure monitoring component 15, and a first solenoid valve 16. The input end of the first ball valve 11 is connected to the external water source, the output end of the first ball valve 11 is connected to the filter 12, the output end of the filter 12 is connected to the cooler 14, and the output end of the cooler 14 is connected to the input end of the water path unit 20. The first relief valve 13 is connected to the output end of the filter 12. The first relief valve 13 controls the water outlet pressure of the filter 12 to prevent excessive pressure from damaging the system components. The first pressure monitoring component 15 is connected to the output end of the cooler 14 for monitoring the water outlet pressure of the cooler 14. The input end of the first solenoid valve 16 is connected to the output end of the filter 12. The first solenoid valve 16 is a normally closed solenoid valve. When energized, it can serve as a water path interface to supply water to other devices.

[0023] like Figure 2As shown, the water circuit unit 20 is used to deliver water to the first predetermined position 70 of the rock drilling equipment. The first predetermined position 70 can be any position of the rock drilling equipment, including the rock drilling head. The water circuit unit 20 includes a water pump 21, a second solenoid valve 22, a second relief valve 23, a second pressure monitoring component 24, a third pressure monitoring component 25 and a second ball valve 26; the input end of the water pump 21 is connected to the output end of the filter 12, the output end of the water pump 21 is connected to the input end of the second solenoid valve 22, the output end of the second solenoid valve 22 is connected to the first predetermined position 70 through a pipeline, and the input end of the second relief valve 23 is connected to the output end of the water pump 21, which is used to protect the water outlet pressure to prevent excessive water pressure from damaging the equipment; the second pressure monitoring component 24 is connected to the second solenoid valve 22, and the third pressure monitoring component 25 is connected to the second ball valve 26; the input end of the water pump 21 is connected to the output end of the water pump 21, and the third pressure monitoring component 25 is connected to the second ball valve 26; the input end of the water pump 21 is connected to the output end of the water pump 21, and the third pressure monitoring component 25 is connected to the second ball valve 26; the input end of the water pump 21 is connected to the output end of the water pump 21, and the third pressure monitoring component 24 is connected to the second pressure monitoring component 25; the third pressure monitoring component 25 is connected to the second ball valve 26; the input end of the water pump 21 is connected to the output end of the water pump 21, and ... The component 24 and the third pressure monitoring component 25 are both connected between the output end of the water pump 21 and the input end of the second solenoid valve 22. The second pressure monitoring component 24 and the third pressure monitoring component 25 are both used to monitor the water outlet pressure, wherein the third pressure monitoring component 25 is configured as a visual pressure gauge; the input end of the second ball valve 26 is connected to the output end of the water pump 21, and the output end of the second ball valve 26 is connected to an external water gun, which is mainly used for cleaning the entire vehicle (most working conditions of rock drilling equipment are drilling upward holes, and rock drilling equipment is easily contaminated by mud and sand).

[0024] like Figure 2 As shown, the air intake unit 30 is used to supply air to the system. The air intake unit 30 includes an air pump 31, an air tank 32, a pressure regulator 33, a third relief valve 34, and a drain valve 35. The air pump 31 has an input that can inhale air, and its output is connected to the air tank 32, which is in turn connected to the pressure regulator 33, which is used to regulate the output pressure of the gas. The input of the third relief valve 34 is connected to the air tank 32 to limit the internal pressure of the air tank 32. The input of the drain valve 35 is connected to the bottom of the air tank 32 to drain the condensed water from the air in the air tank 32.

[0025] like Figure 2 As shown, the first lubrication unit 50 includes a mixing unit 51, a first grease pump 52 and a third solenoid valve 53. The mixing unit 51 is configured as an oil-gas mixing block. The mixing unit 51 is connected to the output end of the pressure regulator 33. The output end of the mixing unit 51 is connected to the first predetermined position 70 through a pipeline. The output end of the first grease pump 52 is connected to the mixing unit 51. The first grease pump 52 can provide a lubricating medium such as grease to the mixing unit 51. After the gas and grease are fully mixed in the mixing unit 51, the first predetermined position 70 of the rock drilling equipment is lubricated; the third solenoid valve 53 is arranged between the mixing unit 51 and the pressure regulator 33. The input end of the third solenoid valve 53 is connected to the output end of the pressure regulator 33, and the output end of the third solenoid valve 53 is connected to the mixing unit 51. The third solenoid valve 53 is used to control the on-off of gas to the mixing unit 51.

[0026] like Figure 2 As shown, the second lubrication unit 60 includes a fourth solenoid valve 61, an injection valve 62 and a second grease pump 63; the input end of the fourth solenoid valve 61 is connected to the air tank 32, the output end of the fourth solenoid valve 61 is connected to the injection valve 62, the output end of the injection valve 62 is correspondingly connected to the second predetermined position 80 of the rock drilling equipment, the second predetermined position 80 includes the drill rod head of the rock drilling equipment, the output end of the second grease pump 63 is connected to the injection valve 62, and the second grease pump 63 can provide lubricating grease to the injection valve 62.

[0027] like Figure 2 As shown, the gas circuit unit 40 includes a fifth solenoid valve 41, a third ball valve 42, a first check valve 43, and a second check valve 44. The input of the fifth solenoid valve 41 is connected to the output of the pressure regulator 33, the output of the fifth solenoid valve 41 is connected to the inlet of the first check valve 43, and the outlet of the first check valve 43 is connected to the first predetermined position 70. The input of the third ball valve 42 is connected to the output of the pressure regulator 33, the output of the third ball valve 42 is connected to the inlet of the second check valve 44, and the outlet of the second check valve 44 is connected to the input of the water pump 21. The third ball valve 42 can control the flow of gas through the second check valve 44. The gas passing through the second check valve 44 can purge the water circuit unit 20 to prevent residual water in the water circuit from freezing in winter.

[0028] The working principle of the air-water lubrication system of this embodiment is as follows: Figure 2 As shown:

[0029] System water supply: Inlet water passes through the first ball valve 11, filter 12, and cooler 14 into the water pump 21. The first overflow valve 13 is used to control the water outlet pressure of the filter 12. The first solenoid valve 16 is normally closed and can be used as a water interface to supply water to other equipment when energized. The water outlet of the water pump 21 passes through the normally open second solenoid valve 22 and enters the first predetermined position 70 of the rock drilling equipment for cleaning. The water outlet of the water pump 21 is provided with a second pressure monitoring device 24 for detecting the outlet pressure and providing high and low pressure alarms. The third pressure monitoring device 25 (pressure gauge) provides a visual function for the water pressure at the outlet. The output end of the second ball valve 26 can be connected to an external water gun, which is mainly used for cleaning the entire equipment.

[0030] System air supply: The air pump 31 sucks air into the air storage tank 32, passes through the pressure regulator 33 and the third solenoid valve 53, and enters the mixing unit 51. The mixing unit 51 contains lubricating oil provided by the first grease pump 52. The two are mixed and enter the first predetermined position 70 of the rock drilling equipment;

[0031] Lubrication injection: The gas in the gas tank 32 enters the injection valve 62 through the fourth solenoid valve 61. The injection valve 62 receives the grease squeezed out by the second grease pump 63 at high pressure, and automatically injects lubrication to the drill rod head of the rock drilling equipment through the injection valve 62, realizing unmanned operation;

[0032] Gas slag removal: The gas from the pressure regulator 33 enters the first predetermined position 70 of the rock drilling equipment through the fifth solenoid valve 41 and the first one-way valve 43, which can be used to clear the residual slag at this position, or as a temporary emergency when there is a problem with the waterway.

[0033] The air-water lubrication system of this embodiment fully utilizes the combined advantages of air, water, and lubrication. The air not only lubricates the rock drill head together with the lubricating oil, but also purges the waterway unit 20 to prevent residual water from freezing in winter. It can also be controlled to clear slag from the rock drilling equipment. Furthermore, unlike traditional manual grease lubrication of drill rod heads, the air in this system combines with the second grease pump 63 through the injection valve 62 to provide contactless grease lubrication of the drill rod head, achieving manual operation and remote control.

[0034] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. An air-water lubrication system for rock drilling equipment, characterized in that: It comprises a pre-water inlet unit (10), a water channel unit (20), an air inlet unit (30), an air channel unit (40), and a first lubrication unit (50); The output end of the pre-water inlet unit (10) is communicated with the input end of the water channel unit (20), and water is supplied to the water channel unit (20) through the pre-water inlet unit (10); The output end of the water channel unit (20) is in communication with a first predetermined position (70) of the rock drilling equipment, and the water channel unit (20) is used to supply water to the first predetermined position (70); The output end of the air intake unit (30) is in communication with the air circuit unit (40), and the air intake unit (30) is used to supply air to the air circuit unit (40). The output end of the air circuit unit (40) is in communication with the first predetermined position (70) and the input end of the water circuit unit (20), respectively. The first lubrication unit (50) comprises a mixing unit (51) and a first grease pump (52); the input end of the mixing unit (51) is in communication with the output end of the air intake unit (30), and the output end of the mixing unit (51) is in communication with a first predetermined position (70); and the first grease pump (52) is in communication with the mixing unit (51).

2. The air-water lubrication system for rock drilling equipment according to claim 1, characterized in that: The pre-water inlet unit (10) comprises a first ball valve (11), a filter (12), a first overflow valve (13), a cooler (14) and a first pressure monitoring component (15); the first ball valve (11), the filter (12) and the cooler (14) are connected in sequence, the input end of the first ball valve (11) is connected to an external water source; the output end of the cooler (14) is connected to the input end of the water channel unit (20); the first overflow valve (13) is connected to the output end of the filter (12); and the first pressure monitoring component (15) is connected to the output end of the cooler (14).

3. The air-water lubrication system for rock drilling equipment according to claim 2, characterized in that: The pre-water inlet unit (10) further comprises a first solenoid valve (16); the input end of the first solenoid valve (16) is in communication with the output end of the filter (12).

4. The air-water lubrication system for rock drilling equipment according to claim 1, characterized in that: The water circuit unit (20) comprises a water pump (21), a second solenoid valve (22), a second overflow valve (23), a second pressure monitoring component (24) and a third pressure monitoring component (25); the input end of the water pump (21) is in communication with the pre-water inlet unit (10), the output end of the water pump (21) is in communication with the input end of the second solenoid valve (22), and the output end of the second solenoid valve (22) is in communication with the first predetermined position (70); the output end of the gas circuit unit (40) is in communication with the input end of the water pump (21) and the output end of the second solenoid valve (22), respectively; The input end of the second overflow valve (23) is communicated with the output end of the water pump (21); the second pressure monitoring component (24) and the third pressure monitoring component (25) are communicated between the output end of the water pump (21) and the input end of the second solenoid valve (22).

5. The air-water lubrication system for rock drilling equipment according to claim 4, characterized in that: The water channel unit (20) further comprises a second ball valve (26), the input end of the second ball valve (26) being in communication with the output end of the water pump (21).

6. The air-water lubrication system for rock drilling equipment according to claim 1, characterized in that: The air intake unit (30) comprises an air pump (31), an air storage tank (32), a pressure regulator (33) and a third overflow valve (34); the air pump (31), the air storage tank (32) and the pressure regulator (33) are connected in sequence; the output end of the pressure regulator (33) is respectively connected to the input ends of the air path unit (40) and the mixing unit (51); and the input end of the third overflow valve (34) is connected to the air storage tank (32).

7. The air-water lubrication system for rock drilling equipment according to claim 6, characterized in that: The air intake unit (30) further comprises a drain valve (35) connected to the bottom of the air storage tank (32).

8. The air-water lubrication system for rock drilling equipment according to claim 6, characterized in that: The first lubrication unit (50) further comprises a third solenoid valve (53); the input end of the third solenoid valve (53) is communicated with the output end of the voltage regulator (33), and the output end of the third solenoid valve (53) is communicated with the input end of the mixing unit (51).

9. The air-water lubrication system for rock drilling equipment according to claim 6, characterized in that: The invention also includes a second lubrication unit (60), which includes a fourth solenoid valve (61), an injection valve (62), and a second grease pump (63); the input end of the fourth solenoid valve (61) is connected to the gas storage tank (32), the output end of the fourth solenoid valve (61) is connected to the injection valve (62), and the output end of the injection valve (62) corresponds to the second predetermined position (80) of the rock drilling equipment; the output end of the second grease pump (63) is connected to the injection valve (62).

10. The air-water lubrication system for rock drilling equipment according to any one of claims 1 to 9, characterized in that: The gas circuit unit (40) includes a fifth solenoid valve (41), a third ball valve (42), a first one-way valve (43) and a second one-way valve (44); The input end of the fifth solenoid valve (41) is communicated with the output end of the air intake unit (30), the output end of the fifth solenoid valve (41) is communicated with the inlet of the first one-way valve (43), and the outlet of the first one-way valve (43) is communicated with the first predetermined position (70); The input end of the third ball valve (42) is communicated with the output end of the air intake unit (30), the output end of the third ball valve (42) is communicated with the inlet end of the second one-way valve (44), and the outlet end of the second one-way valve (44) is communicated with the input end of the waterway unit (20).

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