阅读说明：本技术 一种三臂凿岩台车凿岩机油雾润滑系统 (Oil mist lubricating system for rock drilling of three-arm rock drilling trolley ) 是由 童桂兵 贺涛杰 张全成 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种三臂凿岩台车凿岩机油雾润滑系统,包括环柱主体和固定环柱,固定环柱固定设置,环柱主体端部固定安装在固定环柱上,环柱主体上设置有环形的储油腔,环柱主体的中孔内壁上等距布置有若干环形管,环形管内侧面上开有喷孔,环柱主体外侧设置有与储油腔连通的进油管,储油腔内设置有负压泵、雾化器以及连接横管,负压泵入口端设置有抽液管,出口端通过排液管接至雾化器,雾化器出口通过进雾管接至连接横管,连接横管通过排雾管与环形管连通。本发明能够快速的对凿岩机的运动部件进行充分均匀的润滑,且润滑效果较好,并且在润滑过程中通过紧密的密封安装结构解决了润滑油易泄漏的问题,安全性较高。(The invention discloses an oil mist lubricating system for a three-arm rock drilling trolley rock drill, which comprises a ring column main body and a fixed ring column, wherein the fixed ring column is fixedly arranged, the end part of the ring column main body is fixedly arranged on the fixed ring column, an annular oil storage cavity is arranged on the ring column main body, a plurality of annular pipes are arranged on the inner wall of a middle hole of the ring column main body at equal intervals, spray holes are formed in the inner side surfaces of the annular pipes, an oil inlet pipe communicated with the oil storage cavity is arranged on the outer side of the ring column main body, a negative pressure pump, an atomizer and a connecting transverse pipe are arranged in the oil storage cavity, the inlet end of the negative pressure pump is provided with a liquid suction pipe, the outlet end of the negative pressure pump is connected to the atomizer through a liquid discharge pipe, the outlet of the atomizer is connected to the connecting transverse pipe through a mist inlet pipe, and the connecting transverse pipe is communicated with the annular pipes through mist discharge pipes. The invention can quickly and uniformly lubricate the moving part of the rock drill, has good lubricating effect, solves the problem of easy leakage of lubricating oil through a tight sealing installation structure in the lubricating process, and has high safety.)

1. The utility model provides a three-arm rock drilling jumbo rock drilling oil mist lubricating system, includes rock drill rod (17) of rock drill, its characterized in that: the device is characterized by further comprising a ring column main body (1) and a fixed ring column (18), wherein the fixed ring column (18) is fixedly arranged at the upper section of the rock drilling rod (17), the ring column main body (1) is sleeved on the rock drilling rod (17) through a middle hole, the end part of the ring column main body is fixedly arranged on the fixed ring column (18), an annular oil storage cavity (2) is arranged on the ring column main body (1), a plurality of annular pipes (10) are equidistantly arranged on the inner wall of the middle hole of the ring column main body (1), the annular pipes (10) are all sleeved on the periphery of the rock drilling rod (17), spray holes (12) are formed in the inner side surface of each annular pipe (10), an oil inlet pipe (16) communicated with the oil storage cavity (2) is arranged on the outer side of the ring column main body (1), a negative pressure pump (3), an atomizer (6) and a connecting transverse pipe (8) axially arranged along the ring column main body (1) are arranged in the oil storage cavity (2), and a liquid pumping pipe (4) is arranged at the inlet end of the negative pressure pump (3), the outlet end is connected to the atomizer (6) through a liquid discharge pipe (5), the outlet of the atomizer (6) is connected to a connecting transverse pipe (8) through a mist inlet pipe (7), and the connecting transverse pipe (8) is communicated with an annular pipe (10) through a mist discharge pipe (9).

2. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 1, wherein: the fixed ring column (18) is provided with a connecting ring column (19), the end part of the connecting ring column (19) is arranged with an array of inserting holes (20), the upper end surface of the ring column main body (1) is provided with a matched inserting rod (25), the upper end part of the ring column main body (1) is provided with a magnet ring (26), the inserting rod (25) is inserted in the inserting holes (20), and the magnet ring (26) is attracted on the connecting ring column (19).

3. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 2, wherein: the connecting ring column (19) is fixed at the lower end of the fixed ring column (18), the inner diameter of the connecting ring column (19) is larger than the outer diameter of the fixed ring column (18), the upper end part of the ring column main body (1) is provided with a first inserting ring plate (22) with the outer diameter matched with the inner diameter of the connecting ring column (19), a first sealing ring gasket (23) is arranged on the inner side of the first inserting ring plate (22), the end part of the fixed ring column (18) is provided with a ring plate (21), the upper end part of the first sealing ring gasket (23) is provided with a ring groove (24) matched with the ring plate (21), the first inserting ring plate (22) is inserted into the inner hole of the connecting ring column (19), and the ring plate (21) is inserted into the ring groove (24).

4. A three-armed rock drilling rig oil mist lubrication system as claimed in claim 1, 2 or 3, wherein: the oil storage chamber (2) end of ring post main part (1) is airtight and the lower extreme opening, sealed crown plate (27) have been arranged to oil storage chamber (2) open end, be provided with No. one internal thread crown plate (28) on sealed crown plate (27) outer fringe, be provided with on the ring post main part (1) lower extreme lateral wall with the external screw thread section (35) of internal thread crown plate (28) internal thread phase-match, internal thread crown plate (28) inner wall passes through internal thread and external screw thread section (35) threaded connection, sealed crown plate (27) middle part outer end is provided with external screw thread crown plate (30), be provided with No. two sealed ring pads (31) between external screw thread crown plate (30) and rock drilling rod (17), install No. two internal thread crown plate (33) through the screw thread on external screw thread crown plate (30), be provided with sealed apron (32) between No. two internal thread crown plate (33) tip and rock drilling rod (17).

5. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 4, wherein: a second magnet ring (29) is arranged on the outer wall of the ring column main body (1), the second magnet ring (29) is positioned at the upper end part of the external thread section (35), and the second magnet ring (29) is connected with the end part of the first internal thread ring plate (28) in an attracting mode.

6. A three-armed rock drilling rig rock drilling oil mist lubrication system as claimed in claim 1 or 5, characterised in that: the annular pipes (10) are communicated with each other through the connecting pipe (11), the two ends of the connecting transverse pipe (8) are provided with the fog discharge pipes (9), and the fog discharge pipes (9) are respectively communicated with the two annular pipes (10) at the two ends.

7. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 1, wherein: a return pipe (13) is arranged on one side of the connecting transverse pipe (8), and the outlet end of the return pipe (13) is communicated with the liquid pumping pipe (4) through a communicating pipe (14).

8. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 7, wherein: the liquid discharge pipe (5), the mist inlet pipe (7) and the return pipe (13) are all arranged in an arc shape, and the liquid pumping pipe (4) is arranged in an L shape.

9. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 1, wherein: the ring column main body (1) is also provided with a filter box (15) communicated with the oil storage cavity (2), the oil inlet pipe (16) is connected to the filter box (15), and a filter screen is arranged in the filter box (15).

10. A three-armed rock drilling jumbo rock drilling oil mist lubrication system as claimed in claim 1, wherein: the outer wall of the ring column main body (1) is also provided with a fixed handle (34).

Technical Field

The invention relates to the technical field of rock drills, in particular to an oil mist lubricating system for a rock drill of a three-arm rock drilling trolley.

Background

Rock drills are tools used to directly mine rock material and are used to rotatably drill blastholes in rock formations to deposit explosives to blast the rock and thereby complete the mine of rock material or other rock works. When the rock drill drills, lubrication operation is needed, the lubricating system runs well and is a key factor for ensuring the normal work of the rock drill, and if the lubricating system fails and is not found in time, the rock drill can be damaged due to oil shortage.

In the prior art, a lubricating device of a rock drilling machine of a rock drilling jumbo is disclosed in a patent document with a Chinese patent number of CN202020878437.6, and the lubricating device has a traction effect on an oil injection plug, so that dust is not easy to adhere to the ground from corners after the oil injection plug is unscrewed, and the use of the lubricating device is enabled to be cleaner. However, lubricating oil is often wasted, the moving parts of the rock drilling machine cannot be quickly lubricated sufficiently and uniformly, the lubricating effect is poor, and the working efficiency of the rock drilling machine is reduced. Therefore, the oil mist lubrication system for the rock drilling of the three-arm rock drilling trolley is provided.

Disclosure of Invention

Aiming at the problems in the background technology, the invention provides an oil mist lubricating system for a rock drill of a three-arm rock drilling trolley, which can quickly and fully and uniformly lubricate the moving part of the rock drill and has a good lubricating effect so as to improve the working efficiency of the rock drill. Moreover, the lubricating oil solves the problem of easy leakage of the lubricating oil through a tight sealing installation function in the lubricating process, and the safety is higher.

In order to achieve the purpose, the invention adopts the following technical scheme: the oil mist lubricating system of the three-arm rock drilling trolley rock drilling machine comprises a rock drilling rod of the rock drilling machine, and further comprises a ring column main body and a fixed ring column, wherein the fixed ring column is fixedly arranged at the upper section of the rock drilling rod, the ring column main body is sleeved on the rock drilling rod through a middle hole, the end part of the ring column main body is fixedly arranged on the fixed ring column, an annular oil storage cavity is arranged on the ring column main body, a plurality of annular pipes are equidistantly arranged on the inner wall of the middle hole of the ring column main body, the annular pipes are all sleeved on the periphery of the rock drilling rod, spray holes are formed in the inner side surfaces of the annular pipes, an oil inlet pipe communicated with the oil storage cavity is arranged on the outer side of the ring column main body, a negative pressure pump is arranged in the oil storage cavity, the atomizer and along the horizontal pipe of being connected of ring post main part axial arrangement, negative pressure pump entry end is provided with the liquid suction pipe, and the exit end connects to the atomizer through the fluid-discharge tube, and the atomizer export connects to and connects violently the pipe through advancing the fog pipe, connects violently the pipe through row fog pipe and ring pipe intercommunication.

As further preferred, be provided with the connecting ring post on the fixed ring post, the spliced eye has been arranged to the connecting ring post tip array, and the up end of ring post main part is provided with assorted spliced pole, and ring post main part upper end is provided with a magnet ring, and the spliced pole is inserted and is established in the spliced eye, and a magnet ring actuation is on the connecting ring post.

Preferably, the inner diameter of the connecting ring column is larger than the outer diameter of the fixing ring column, a first inserting ring plate with the outer diameter matched with the inner diameter of the connecting ring column is arranged at the upper end of the ring column main body, a first sealing ring pad is arranged on the inner side of the first inserting ring plate, an annular plate is arranged at the end part of the fixing ring column, an annular groove matched with the annular plate is formed in the upper end part of the first sealing ring pad, the first inserting ring plate is inserted into an inner hole of the connecting ring column, and the annular plate is inserted into the annular groove.

As further preferred, the oil storage chamber end of ring post main part is airtight and the lower extreme opening, sealed crown plate has been arranged to oil storage chamber open end, be provided with internal thread crown plate No. one on the sealed crown plate outer fringe, be provided with the external screw thread section with the internal thread assorted of internal thread crown plate on the ring post main part lower extreme lateral wall, internal thread crown plate inner wall passes through internal thread and external screw thread section threaded connection, sealed crown plate middle part outer end is provided with the external screw thread crown plate, be provided with No. two sealed ring pads between external screw thread crown plate and the rock drilling rod, install No. two internal thread crown plates through the screw thread on the external screw thread crown plate, be provided with sealed apron between No. two internal screw thread crown plate tip and the rock drilling rod.

Preferably, the outer wall of the ring column main body is provided with a second magnet ring, the second magnet ring is positioned at the upper end part of the external thread section, and the second magnet ring is connected with the end part of the first internal thread ring plate in an attracting mode.

Preferably, the annular pipes are communicated with each other through connecting pipes, the two ends of the connecting transverse pipe are provided with mist discharge pipes, and the mist discharge pipes are respectively communicated with the two annular pipes at the two ends.

As further preferred, connect horizontal pipe one side and be provided with the back flow, the back flow exit end passes through communicating pipe and liquid suction pipe intercommunication.

Preferably, the drain pipe, the mist inlet pipe and the return pipe are all arc-shaped, and the liquid pumping pipe is L-shaped.

As further preferred, still be provided with the filter cartridge with oil storage chamber intercommunication on the ring post main part, the oil inlet pipe is connected on the filter cartridge, is provided with the filter screen in the filter cartridge.

Preferably, the outer wall of the ring pillar main body is also provided with a fixed handle.

The technical scheme of the invention has the following beneficial effects:

the invention can quickly and uniformly lubricate the moving part of the rock drill, has better lubricating effect, solves the problem of easy leakage of lubricating oil through a compact sealing installation structure in the lubricating process, has higher safety, has the advantages of good lubricating effect and reduction of the waste of the lubricating oil, and improves the working efficiency of the rock drill.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional structure of fig. 1.

FIG. 3 is a schematic view showing the distribution structure of the ring-shaped pipe of the present invention.

FIG. 4 is a schematic view of the connection structure of the ring post body according to the present invention.

FIG. 5 is a schematic view of the connection structure of the connection ring pillar and the ring pillar main body according to the present invention.

Fig. 6 is a schematic view of a connection structure of the connection ring plate according to the present invention.

In the figure: 1. A ring post body; 2. an oil storage chamber; 3. a negative pressure pump; 4. a liquid pumping pipe; 5. a liquid discharge pipe; 6. an atomizer; 7. a mist inlet pipe; 8. connecting the transverse pipes; 9. a mist discharge pipe; 10. an annular tube; 11. a connecting pipe; 12. spraying a hole; 13. a return pipe; 14. a communicating pipe; 15. a filter cartridge; 16. an oil inlet pipe; 17. a rock drilling rod; 18. fixing the ring column; 19. connecting the ring columns; 20. inserting holes; 21. an annular plate; 22. a first inserting ring plate; 23. a first sealing ring gasket; 24. an annular groove; 25. a plug rod; 26. a first magnet ring; 27. a seal ring plate; 28. a first internal thread ring plate; 29. a second magnet ring; 30. an external thread ring plate; 31. a second sealing ring gasket; 32. sealing the cover plate; 33. a second internal thread ring plate; 34. fixed handle, 35, external screw thread section.

Detailed Description

In order to make the technical solution and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings for the convenience of the skilled person.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed in a specific direction and operate, and thus, should not be construed as limiting the technical solution of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the oil mist lubrication system for the three-arm rock drilling jumbo rock drilling machine comprises a rock drilling rod 17 of the rock drilling machine, and further comprises a ring column main body 1 and a fixed ring column 18, wherein the fixed ring column 18 is fixedly arranged on the upper section of the rock drilling rod 17, the ring column main body 1 is sleeved on the rock drilling rod 17 through a middle hole and the end part of the ring column main body is fixedly arranged on the fixed ring column 18, an annular oil storage cavity 2 is arranged on the ring column main body 1, a plurality of ring pipes 10 are equidistantly arranged on the inner wall of the middle hole of the ring column main body 1, the ring pipes 10 are all sleeved on the periphery of the rock drilling rod 17, spray holes 12 are arranged on the inner side surface of each ring pipe 10, an oil inlet pipe 16 communicated with the oil storage cavity 2 is arranged on the outer side of the ring column main body 1, a negative pressure pump 3, an atomizer 6 and a connecting transverse pipe 8 axially arranged along the ring column main body 1 are arranged in the oil storage cavity 2, the inlet end of the negative pressure pump 3 is provided with a liquid suction pipe 4, the outlet end is connected to the atomizer 6 through a liquid discharge pipe 5, the outlet of the atomizer 6 is connected to a horizontal connecting pipe 8 through a fog inlet pipe 7, and the horizontal connecting pipe 8 is communicated with an annular pipe 10 through a fog discharge pipe 9. Wherein, the orifice 12 on the ring pipe 10 sets up the number according to the demand, and the drill rod 17 in middle part is all faced towards in the drill way, can be with the even spraying of the lubricating oil mist that forms after 6 atomizers of atomizer on drill rod 17, has replaced traditional liquid lubrication process, has prevented the waste of lubricating oil, and the fast abundant even slip speed of lubrication process, and lubricated effect is better.

Further, the annular pipes 10 are communicated with each other through the connecting pipe 11, so that the annular pipes 10 are communicated with each other, at this time, the mist discharge pipes 9 are arranged at two ends of the connecting transverse pipe 8, and the mist discharge pipes 9 are respectively communicated with the two annular pipes 10 at the two ends. The mist discharge pipe 9 is communicated with the annular pipes 10 after penetrating through the inner wall of the oil storage cavity 2, and on the premise that the annular pipes 10 are communicated with each other, the mist discharge pipe 9 can provide lubricating oil mist for all the annular pipes 10 only by arranging two mist discharge pipes, so that the lubricating pipeline structure is simplified, and the equipment stability is improved.

Furthermore, a return pipe 13 is arranged on one side of the connecting transverse pipe 8, and the outlet end of the return pipe 13 is communicated with the liquid extracting pipe 4 through a communicating pipe 14. The back flow pipe 13 can be collected the liquid lubricating oil of connecting in violently managing 8, and returns back to negative pressure pump 3 and realize cyclic utilization behind liquid suction pipe 4 through communicating pipe 14 backward, and the drain pipe 5, the shape that advances fog pipe 7 and back flow pipe 13 all are the arc setting, and liquid suction pipe 4 sets up to "L" type, and more phase-match with oil storage cavity 2 annular and constrictive inner chamber promotes pipeline structure's stability.

Furthermore, a filter box 15 communicated with the oil storage cavity 2 is further arranged on the ring column main body 1, the oil inlet pipe 16 is connected to the filter box 15, and a filter screen is arranged in the filter box 15. The filter box 15 can be filtered the oil that advances oil pipe 16 and send into in advance, avoids debris to get into the lubricated pipeline of oil storage chamber 2 jam, ensures equipment safety.

Further, still be provided with fixed handle 34 on the ring post main part 1 outer wall, provide the additional function for the installation of ring post main part 1 and the dismantlement process through fixed handle 34, it is more convenient to operate.

Further, the fixed ring column 18 is provided with a connecting ring column 19, the end portion of the connecting ring column 19 is arranged with an array of insertion holes 20, the upper end face of the ring column main body 1 is provided with a matched insertion rod 25, the upper end portion of the ring column main body 1 is provided with a magnet ring 26, the insertion rod 25 is inserted into the insertion holes 20, and the magnet ring 26 is attracted to the connecting ring column 19. Wherein, the upper end of the fixed ring column 18 is fixed on the rock drill frame at the upper end of the rock drill rod 17 and is used as the installation foundation of the ring column main body 1. The upper end of the ring column main body 1 is stably connected with the connecting ring column 19 by inserting the inserting rod 25 and the inserting hole 20 and matching with the magnet ring 26 to be connected with the connecting ring column 1 in an attracting mode, so that the ring column main body 1 is convenient to mount and dismount.

Furthermore, the connecting ring column 19 is fixed at the lower end of the fixed ring column 18, the inner diameter of the connecting ring column 19 is larger than the outer diameter of the fixed ring column 18, the upper end of the ring column main body 1 is provided with a first inserting ring plate 22 with the outer diameter matched with the inner diameter of the connecting ring column 19, the inner side of the first inserting ring plate 22 is provided with a first sealing ring gasket 23, the end part of the fixed ring column 18 is provided with a ring plate 21, the upper end of the first sealing ring gasket 23 is provided with a ring groove 24 matched with the ring plate 21, the first inserting ring plate 22 is inserted into the inner hole of the connecting ring column 19, and the ring plate 21 is inserted into the ring groove 24. The first inserting ring plate 22 can extend into the inner cavity of the connecting ring column 19 to be stably inserted and matched until the fixed ring column 18 contacts the lower end face, meanwhile, the ring plate 21 is inserted into the ring groove 24 of the first sealing ring gasket 23 to form a stable and effective sealing structure, the sealing performance of the connecting position between the connecting ring column 19 and the upper end portion of the ring column main body 1 is guaranteed, and the problem that lubricating oil is easy to leak in the lubricating process is solved.

Further, the oil storage cavity 2 end of the ring column main body 1 is closed, and the lower end of the ring column main body is opened, so that the oil storage cavity 2 can be conveniently cleaned and maintained through the opened end. Sealing ring plate 27 has been arranged to 2 open ends in oil storage chamber, be provided with No. one internal thread crown plate 28 on sealing ring plate 27 the outer fringe, be provided with on the 1 lower extreme lateral wall of ring post main part with No. one internal thread crown plate 28 the external screw thread section 35 of internal thread assorted, No. one internal thread crown plate 28 inner wall passes through internal thread and external screw thread section 35 threaded connection, sealing ring plate 27 middle part outer end is provided with external screw thread crown plate 30, be provided with No. two sealing ring pads 31 between external screw thread crown plate 30 and rock drilling rod 17, install No. two internal thread crown plates 33 through the screw thread on the external screw thread crown plate 30, be provided with sealed apron 32 between No. two internal screw thread crown plate 33 tip and the rock drilling rod 17. Wherein, through the installation connection of a number one internal thread ring plate 28 and an external thread section 35, the sealing ring plate 27 enables the opening end of the oil storage cavity 2 to be stably closed. Simultaneously, set up No. two sealed ring gaskets 31 and can form effective seal to the clearance between external thread crown plate 30 and the rock drilling pole 17, and through No. two internal thread crown plate 33 and external thread crown plate 30 threaded connection for sealed apron 32 forms stable bearing location to No. two sealed ring gaskets 31. The sealing structure is stable and reliable, the problem that lubricating oil is easy to leak in the lubricating process is avoided, and meanwhile, the sealing structure is easy to disassemble and maintain. Furthermore, a second magnet ring 29 is arranged on the outer wall of the ring column main body 1, the second magnet ring 29 is positioned at the upper end part of the external thread section 35, and the second magnet ring 29 is connected with the end part of the first internal thread ring plate 28 in an attracting mode. After the first internal thread ring plate 28 is screwed in place on the external thread section 35, the end face of the first internal thread ring plate 28 is attracted with the second magnet ring 29, so that the structural stability of the sealing ring plate 27 and the connecting parts of the sealing ring plate 27 in the working process is further guaranteed, and the sealing effect is guaranteed.

The working principle and the using process of the invention are as follows: firstly, a worker places a first sealing ring gasket 23 and a second sealing ring gasket 31 inside a first inserting ring plate 22 and a second inserting ring plate 30 respectively, then sleeves a ring post main body 1 outside a rock drilling rod 17 through two groups of fixing handles 34, inserts the first inserting ring plate 22 into a connecting ring post 19, inserts a plurality of groups of inserting connecting rods 25 into a plurality of groups of inserting holes 20 respectively and inserts the ring plate 21 into an annular groove 24 until the connecting ring post 19 is attracted with a first magnet ring 26 and clamped on one side of the ring post main body 1, and accordingly matching of mounting a sealing structure on the top of the ring post main body 1 is achieved. Secondly, through the threaded connection of No. one internal thread ring plate 28 and No. two magnet rings 29 suction connection of deuterogamy of external screw thread section 35, seal ring plate 27 joint is airtight at the opposite side of ring post main part 1 oil storage chamber 2 open end to threaded connection through No. two internal thread ring plates 33 and external screw thread ring plate 30 makes sealed apron 32 joint in the outside of No. two seal ring pads 31, can avoid ring post main part 1 lower extreme lubricating oil to take place to reveal in lubricated in-process. Before the lubricating operation, the lubricating oil is introduced into the filter cartridge 15 through the oil inlet pipe 16, filtered by the filter screen, and stored in the interior of the oil storage chamber 2. During lubrication, a negative pressure pump 3 in the oil storage chamber 2 is started, lubricating oil in the oil storage chamber 2 is pumped into a drain pipe 5 through a liquid pumping pipe 4, the lubricating oil is made into oil mist through an atomizer 6, then the oil mist is guided into a connecting transverse pipe 8 through a mist inlet pipe 7, the oil mist is guided into each annular pipe 10 through a mist discharge pipe 9 in the matching of a connecting pipe 11, and the oil mist is sprayed to the outer side surface of a rock drilling rod 17 through a group spray hole 12, so that the rock drilling rod 17 is lubricated. The return pipe 13 and the communicating pipe 14 can collect the liquid lubricating oil in the connecting transverse pipe 8, the traditional liquid lubricating process is replaced, the waste of the lubricating oil is prevented, the moving parts of the rock drilling machine can be quickly lubricated fully and uniformly, and the lubricating effect is good, so that the working efficiency of the rock drilling machine is improved.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.