Hydraulic drilling machine feeding mechanism
By using cold water circulation and telescopic rods and springs in the feed mechanism of the hydraulic drilling rig, the performance degradation caused by high temperature is solved, the control accuracy and working efficiency are improved, and the equipment life is extended.
Patent Information
- Application Number
- CN202421053283.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The hydraulic drilling rig feed mechanism generates high temperatures due to friction during high speed movement, which causes oil to deteriorate and performance to decrease, affecting control accuracy and stability.
Using a combined structure of carriage, slider, water pump, water storage tank and heat sink, the heat sink is reduced by cooling water circulation, combined with telescopic rod and spring to reduce vibration and noise, and reduce friction and impurity accumulation through lubricating oil and bristles .
It effectively reduces the oil temperature, improves the stability and control accuracy of the hydraulic system, reduces component expansion and wear, and improves the working efficiency and service life of the feed mechanism.
Smart Images
Figure CN222276616U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydraulic drilling rigs, in particular to a feeding mechanism of a hydraulic drilling rig. Background Art
[0002] A hydraulic drill, also known as an oil-pressure drill, is a commonly produced rotary drill. It mainly uses hydraulic power to drive and control its operating parts. In coal mining production, a hydraulic drill is an important drilling equipment.
[0003] The hydraulic drill feed mechanism is one of the key components of the hydraulic drill. In coal mine production, the hydraulic drill feed mechanism is mainly responsible for controlling the feed and pull-out action of the drill bit. The hydraulic drill feed mechanism usually includes some components such as the feed cylinder, feed device, and tray. The feed cylinder is the power source of the feed mechanism, thereby achieving precise control of the drill bit feed depth and speed.
[0004] During coal mining production, a certain amount of friction will be generated between the piston and the cylinder body inside the oil cylinder. Under high-speed movement, the friction will generate a large amount of heat, causing the oil temperature to be too high, resulting in oil deterioration or performance degradation.
[0005] To this end, the utility model provides a hydraulic drilling rig feeding mechanism. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: a hydraulic drilling rig feeding mechanism described in the utility model comprises a slide; a sliding block is slidably connected to the side wall of the slide; a feed oil cylinder is fixedly connected to the bottom of the sliding block; a baffle is fixedly connected to the side wall of the slide; a piston plate is slidably connected to the middle part of the feed oil cylinder; a piston rod is fixedly connected to the middle part of the piston plate; the middle part of the piston rod passes through one end of the feed oil cylinder; the end of the piston rod is fixedly connected to the middle part of the baffle; a water pump is fixedly connected to the side wall of the feed oil cylinder; a water outlet pipe is fixedly connected to the middle part of the water pump; a water tank is fixedly connected to the side wall of the feed oil cylinder; the other end of the water outlet pipe is fixedly connected to the side wall of the water tank, a water injection pipe is fixedly connected to the top of the water tank; a water inlet pipe is fixedly connected to the top of the water tank; the water inlet A heat-conducting rod is fixedly connected to the middle of the tube; a plurality of heat sinks are fixedly connected to the middle of the heat-conducting rod; the plurality of heat sinks are arranged oppositely; the other end of the water inlet pipe is fixedly connected to the bottom of the water pump; by circulating cold water, a large amount of heat generated by the feed cylinder during operation can be effectively reduced, and the increase in oil temperature inside the feed cylinder can be effectively reduced; the heat inside the feed cylinder can be taken away by water circulation, which can effectively reduce the deterioration of the oil or the degradation of the performance caused by excessive oil temperature, and effectively reduce the change in the viscosity of the oil caused by excessive oil temperature, thereby effectively reducing the stability and control accuracy of the hydraulic system caused by excessive oil temperature, and can effectively reduce the expansion of the feed cylinder and other components caused by excessive oil temperature, and effectively reduce the fluidity of the hydraulic oil, thereby improving the working efficiency of the feed mechanism.
[0008] Preferably, two telescopic rods are fixedly connected to the top of the feed oil cylinder; the two telescopic rods are fixedly connected to the inside of the feed oil cylinder; two springs are fixedly connected to the top of the feed oil cylinder; the two springs are fixedly connected to the outside of the corresponding telescopic rods; the other end of the spring is fixedly connected to the middle of the piston plate; the telescopic rods and the springs can effectively reduce the vibration generated by the feed oil cylinder during operation, effectively absorb part of the impact force, effectively reduce the damage to the feed oil cylinder after the impact, and the speed of the piston movement can be effectively controlled by the spring to achieve more precise movement requirements, and the noise generated when the feed oil cylinder is working can be effectively reduced by the spring, and the movement state of the feed mechanism can be stabilized by adjusting the tension of the spring, making the feed mechanism more stable during movement.
[0009] Preferably, two oil storage boxes are fixedly connected to the side wall of the slider; the two oil storage boxes are arranged opposite to each other; an oil storage cover is fixedly connected to the top of the oil storage box; a connecting pipe is fixedly connected to the bottom of the oil storage box; a sponge block is fixedly connected to the bottom of the slider; the other end of the connecting pipe is fixedly connected to the middle of the sponge block; by applying lubricating oil to the sliding connection of the slider, the direct contact and friction between the slider and the slide can be effectively reduced, the resistance generated by the slider during movement can be effectively reduced, the slider can be effectively moved more smoothly, and the wear of the slider caused by long-term wear can be effectively reduced, the hydraulic drill feed mechanism can be allowed to operate stably for a long time, and the rust problem of the slider and its contact surface can be effectively reduced.
[0010] Preferably, a fixed plate is fixedly connected to the bottom of the feed cylinder; a plurality of groups of bristles are fixedly connected to the middle of the fixed plate; the ends of the plurality of groups of bristles are in contact with the surface of the piston rod; the bristles can clean the dust and impurities adsorbed on the surface of the piston rod, effectively reducing the dust and impurities from entering the feed cylinder, and can effectively reduce the obstruction of the movement of the piston rod caused by the dust and impurities, reduce the accumulation of dust and impurities on the surface of the piston rod due to long-term use, and effectively reduce the wear and jamming of the piston rod during operation.
[0011] Preferably, multiple groups of protection rods are fixedly connected to the middle part of the water inlet pipe; the multiple groups of protection rods are equidistantly distributed; the multiple groups of protection rods are fixedly connected to the outside of the heat sink; the multiple groups of protection rods are fixedly connected to the middle part with mesh plates; the protection rods can effectively reduce the collision of external objects on the heat sink, effectively reduce the damage caused by the collision to the heat sink, and adding mesh plates between the multiple groups of protection rods can effectively reduce the dust and impurities in the air from falling onto the surface of the heat sink, effectively reduce the accumulation of dust and impurities on the surface of the heat sink, and effectively reduce the accumulation of dust and impurities on the surface of the heat sink, which leads to reduced heat dissipation effect.
[0012] Preferably, two scrapers are fixedly connected to the side wall of the piston plate; the two scrapers are arranged opposite to each other; the ends of the two scrapers are in contact with the inner wall of the feed cylinder; the scraper is fixed on the side close to the spring; the scraper can effectively reduce the adsorption of impurities in the feed cylinder on the inner wall, effectively increase the cleanliness of the inside of the feed cylinder, and can effectively reduce the friction between the piston plate and the inner wall of the feed cylinder caused by the adsorption of impurities on the inner wall of the feed cylinder, effectively reduce the wear caused by the friction generated by impurities, effectively increase the service life of the feed cylinder, and cleaning the dust and impurities in the inner wall of the feed cylinder can effectively increase the sealing performance between the feed cylinder and the piston plate, and reduce the problem of hydraulic oil leakage.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The hydraulic drilling rig feed mechanism described in the utility model can effectively reduce the large amount of heat generated by the feed cylinder during operation by circulating cold water, effectively reduce the increase in oil temperature inside the feed cylinder, and take away the heat inside the feed cylinder through water circulation, effectively reducing the deterioration of oil or performance degradation caused by excessive oil temperature, effectively reducing the change in oil viscosity caused by excessive oil temperature, thereby effectively reducing the stability and control accuracy of the hydraulic system caused by excessive oil temperature, and can effectively reduce the expansion of the feed cylinder and other components caused by excessive oil temperature, effectively reduce the fluidity of hydraulic oil, thereby improving the working efficiency of the feed mechanism.
[0015] 2. The hydraulic drilling rig feeding mechanism described in the utility model can effectively reduce the vibration generated by the feed cylinder during operation through the telescopic rod and the spring, effectively absorb part of the impact force, effectively reduce the damage to the feed cylinder after the impact, and can effectively control the speed of the piston movement through the spring to achieve more precise movement requirements, and can effectively reduce the noise generated by the feed cylinder during operation through the spring, and can stabilize the movement state of the feed mechanism by adjusting the tension of the spring, making the feed mechanism more stable during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model will be further described below in conjunction with the accompanying drawings.
[0017] Figure 1 It is a three-dimensional diagram of a hydraulic drilling rig feeding mechanism in the utility model;
[0018] Figure 2 It is a structural schematic diagram of the water outlet pipe in the utility model;
[0019] Figure 3 It is a structural schematic diagram of the telescopic rod in the utility model;
[0020] Figure 4 It is a structural schematic diagram of the oil storage box in the utility model;
[0021] Figure 5 It is a schematic diagram of the structure of the bristles in the utility model;
[0022] Figure 6 It is a structural schematic diagram of the mesh plate of the utility model;
[0023] Figure 7 It is a structural schematic diagram of the scraper in the utility model;
[0024] In the figure: 1. water pump; 11. water outlet pipe; 12. water storage tank; 13. water filling pipe; 14. water inlet pipe; 15. heat conducting rod; 16. heat sink; 2. telescopic rod; 21. spring; 3. oil storage box; 31. oil storage cover; 32. connecting pipe; 33. sponge block; 4. fixing plate; 41. bristles; 5. protective rod; 51. mesh plate; 6. scraper; 7. sealing gasket; 8. slide; 81. slide block; 82. oil feed cylinder; 83. baffle; 84. piston plate; 85. piston rod. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0026] like Figure 1 and Figure 2As shown, a hydraulic drilling rig feeding mechanism described in an embodiment of the utility model includes a slide 8; a slider 81 is slidably connected to the side wall of the slide 8; a feed cylinder 82 is fixedly connected to the bottom of the slider 81; a baffle 83 is fixedly connected to the side wall of the slide 8; a piston plate 84 is slidably connected to the middle of the feed cylinder 82; a piston rod 85 is fixedly connected to the middle of the piston plate 84; the middle of the piston rod 85 passes through one end of the feed cylinder 82; the end of the piston rod 85 is fixedly connected to the middle of the baffle 83; a water pump 1 is fixedly connected to the side wall of the feed cylinder 82; a water outlet pipe 1 is fixedly connected to the middle of the water pump 1 1; the side wall of the feed oil cylinder 82 is fixedly connected to a water storage tank 12; the other end of the water outlet pipe 11 is fixedly connected to the side wall of the water storage tank 12, and the top of the water storage tank 12 is fixedly connected to a water injection pipe 13; the top of the water storage tank 12 is fixedly connected to a water inlet pipe 14; a heat-conducting rod 15 is fixedly connected to the middle of the water inlet pipe 14; the middle of the heat-conducting rod 15 is fixedly connected to multiple groups of heat sinks 16; the multiple groups of heat sinks 16 are arranged oppositely; the other end of the water inlet pipe 14 is fixedly connected to the bottom of the water pump 1; during operation, when the feed oil cylinder 82 performs reciprocating motion to drive the drill bit to feed, cooling water is released from the water injection pipe 13 The water pump 1 is placed inside the water tank 12, and the water pump 1 is turned on after being powered on, and the water placed inside the water tank 12 is pumped out through the water injection pipe 13, and the water is discharged from one end of the water outlet pipe 11 through the water pump 1. The water flows inside the water outlet pipe 11, and finally flows out to the inside of the water tank 12 through the other end of the water outlet pipe 11, so that the water circulates to reduce the temperature of the feed cylinder 82. When the water that absorbs heat is pumped out from the inside of the water tank 12 to the middle of the water injection pipe 13 again, the heat of the water flow passing through the water injection pipe 13 is extracted through the heat conducting rod 15, and the heat is dissipated through the heat sink 16. Circulating cold water can effectively reduce the large amount of heat generated by the feed cylinder 82 during operation, effectively reduce the increase in oil temperature inside the feed cylinder 82, and take away the heat inside the feed cylinder 82 through water circulation, effectively reducing the deterioration of oil or performance degradation caused by excessive oil temperature, and effectively reducing the change in oil viscosity caused by excessive oil temperature, thereby effectively reducing the stability and control accuracy of the hydraulic system caused by excessive oil temperature. It can effectively reduce the expansion of the feed cylinder 82 and other components caused by excessive oil temperature, effectively reduce the fluidity of hydraulic oil, and thus improve the working efficiency of the feed mechanism.
[0027] like Figure 3As shown, the top of the feed oil cylinder 82 is fixedly connected to two telescopic rods 2; the two telescopic rods 2 are fixedly connected to the inside of the feed oil cylinder 82; the top of the feed oil cylinder 82 is fixedly connected to two springs 21; the two springs 21 are fixedly connected to the outside of the corresponding telescopic rods 2; the other end of the spring 21 is fixedly connected to the middle of the piston plate 84; during operation, when the piston plate 84 slides inside the feed oil cylinder 82, when the piston plate 84 contacts the top of the feed oil cylinder 82, it is buffered by the two telescopic rods 2, and when the piston plate 84 is under pressure, it first contacts the top of the telescopic rod 2, and is squeezed to The telescopic rod 2 contracts, and the piston plate 84 is buffered by the telescopic rod 2. The telescopic rod 2 and the spring 21 can effectively reduce the vibration generated by the feed cylinder 82 during operation, effectively absorb part of the impact force, and effectively reduce the damage to the feed cylinder 82 after the impact. The speed of the piston movement can be effectively controlled by the spring 21 to achieve more precise movement requirements. The spring 21 can also effectively reduce the noise generated by the feed cylinder 82 during operation. By adjusting the tension of the spring 21, the movement state of the feed mechanism can be stabilized, making the feed mechanism more stable during movement.
[0028] like Figure 1 and Figure 4 As shown, the side wall of the slider 81 is fixedly connected to two oil storage boxes 3; the two oil storage boxes 3 are arranged opposite to each other; the top of the oil storage box 3 is fixedly connected to an oil storage cover 31; the bottom of the oil storage box 3 is fixedly connected to a connecting pipe 32; the bottom of the slider 81 is fixedly connected to a sponge block 33; the other end of the connecting pipe 32 is fixedly connected to the middle of the sponge block 33; when working, after opening the oil storage cover 31, pour the lubricating oil into the oil storage box 3, the lubricating oil flows out through the bottom of the oil storage box 3, and flows into the sponge block 33 through the connecting pipe 32, the sponge block 33 absorbs the lubricating oil inside, and when the slider 81 slides, the sponge block 33 absorbs the lubricating oil inside. The sponge block 33 is attached to the sliding surface of the slide 8 and the slider 81, and the lubricating oil is applied to the connection between the slider 81 and the slide 8 through the sponge block 33. By applying the lubricating oil to the sliding connection of the slider 81, the direct contact and friction between the slider 81 and the slide 8 can be effectively reduced, and the resistance generated by the slider 81 during the movement can be effectively reduced, so that the slider 81 can move more smoothly, and the wear of the slider 81 caused by a long time can be effectively reduced, so that the hydraulic drill feed mechanism can operate stably for a long time, and the rust problem of the slider 81 and its contact surface can be effectively reduced.
[0029] like Figure 5As shown, a fixed plate 4 is fixedly connected to the bottom of the feed cylinder 82; a plurality of groups of bristles 41 are fixedly connected to the middle of the fixed plate 4; the ends of the plurality of groups of bristles 41 are in contact with the surface of the piston rod 85; when working, the bristles 41 are in contact with the surface of the piston rod 85. When the piston rod 85 is extended and retracted, the surface of the piston rod 85 is cleaned by the bristles 41, and the dust and impurities adsorbed on the surface of the piston rod 85 can be cleaned by the bristles 41, which effectively reduces the dust and impurities from entering the feed cylinder 82, and can effectively reduce the obstruction of the movement of the piston rod 85 by the dust and impurities, reduce the accumulation of dust and impurities on the surface of the piston rod 85 due to long-term use, and effectively reduce the wear and jamming of the piston rod 85 during operation.
[0030] like Figure 6 As shown, a plurality of groups of protective rods 5 are fixedly connected to the middle of the water inlet pipe 14; the plurality of groups of protective rods 5 are equidistantly distributed; the plurality of groups of protective rods 5 are fixedly connected to the outside of the heat sink 16; a mesh plate 51 is fixedly connected to the middle of the plurality of groups of protective rods 5; during operation, when the heat sink 16 is working or stored, the protective rods 5 are used to block foreign objects, and the mesh plate 51 is used to filter dust and impurities in the air, and the protective rods 5 can effectively reduce the collision of foreign objects with the heat sink 16, and effectively reduce the damage caused by the collision to the heat sink 16, and adding the mesh plate 51 between the plurality of groups of protective rods 5 can effectively reduce the dust and impurities in the air from falling onto the surface of the heat sink 16, and can effectively reduce the accumulation of dust and impurities on the surface of the heat sink 16, and effectively reduce the accumulation of dust and impurities on the surface of the heat sink 16, which leads to a reduction in the heat dissipation effect.
[0031] like Figure 7 As shown, two scrapers 6 are fixedly connected to the side wall of the piston plate 84; the two scrapers 6 are arranged opposite to each other; the ends of the two scrapers 6 are in contact with the inner wall of the feed cylinder 82; the scraper 6 is fixedly connected to the side close to the spring 21; during operation, when the piston plate 84 slides, the inner wall is cleaned by the end of the scraper 6 in contact with the inner wall of the feed cylinder 82, and the scraper 6 can effectively reduce the adsorption of impurities in the feed cylinder 82 on the inner wall, effectively increase the cleanliness of the inside of the feed cylinder 82, and can effectively reduce the friction between the piston plate 84 and the inner wall of the feed cylinder 82 caused by the adsorption of impurities on the inner wall of the feed cylinder 82, effectively reduce the wear caused by the friction caused by impurities, effectively increase the service life of the feed cylinder 82, and cleaning the dust and impurities in the inner wall of the feed cylinder 82 can effectively increase the sealing performance between the feed cylinder 82 and the piston plate 84, and reduce the problem of hydraulic oil leakage.
[0032] like Figure 7As shown, the side wall of the piston plate 84 is fixedly connected with a sealing gasket 7; the sealing gasket 7 is fixedly connected to the side close to the scraper 6; during operation, when the piston plate 84 slides, the hydraulic oil is sealed by the sealing gasket 7, and the sealing gasket 7 can effectively increase the sealing between the piston plate 84 and the feed cylinder 82, and effectively reduce the leakage of hydraulic oil from the gap between the piston rod 85 and the cylinder barrel under high pressure, which can effectively increase the pressure stability of the hydraulic system and effectively reduce the performance degradation caused by hydraulic oil leakage.
[0033] During operation, when the feed cylinder 82 reciprocates to drive the drill bit to feed, cooling water is placed inside the water tank 12 from the water injection pipe 13, the water pump 1 is powered on and turned on, the water placed inside the water tank 12 is pumped out through the water injection pipe 13, the water is discharged from one end of the water outlet pipe 11 through the water pump 1, the water flows inside the water outlet pipe 11, and finally flows out to the inside of the water tank 12 through the other end of the water outlet pipe 11, so that the water circulates to reduce the temperature of the feed cylinder 82. When the water that has absorbed the heat is pumped out from the water tank 12 to the middle of the water injection pipe 13 again, the heat of the water flowing through the water injection pipe 13 is conducted out through the heat conducting rod 15, and the heat is dissipated through the heat sink 16. When the piston plate 84 slides inside the oil feed cylinder 82, when the piston plate 84 contacts the top of the oil feed cylinder 82, it is buffered by the two telescopic rods 2, and when the piston plate 84 is under pressure, it first contacts the top of the telescopic rod 2, and the telescopic rod 2 is contracted by being squeezed. The piston plate 84 is buffered by the telescopic rod 2, and after the oil storage cover 31 is opened, the lubricating oil is poured into the oil storage box 3, and the lubricating oil flows out from the bottom of the oil storage box 3, and flows into the sponge block 33 through the connecting pipe 32. The sponge block 33 absorbs the lubricating oil inside, and when the slider 81 slides, the sponge block 33 fits the sliding surface position of the slide 8 and the slider 81, and the lubricating oil is smeared to the connection between the slider 81 and the slide 8 through the sponge block 33, and the bristles 41 fit the surface of the piston rod 85. When the piston rod 85 is extended and retracted, the surface of the piston rod 85 is cleaned by the bristles 41. When the heat sink 16 is working or stored, the protective rod 5 is used to block foreign objects, and the dust and impurities in the air are filtered by the mesh plate 51. When the piston plate 84 slides, the inner wall is cleaned by the end of the scraper 6 fitting against the inner wall of the feed cylinder 82. When the piston plate 84 slides, the hydraulic oil is sealed by the sealing pad 7.
[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A hydraulic drilling rig feeding mechanism, comprising a slide (8); characterized in that: The side wall of the slide (8) is slidably connected to a slider (81); the bottom of the slider (81) is fixedly connected to a feed oil cylinder (82); the side wall of the slide (8) is fixedly connected to a baffle (83); the middle part of the feed oil cylinder (82) is slidably connected to a piston plate (84); the middle part of the piston plate (84) is fixedly connected to a piston rod (85); the middle part of the piston rod (85) passes through one end of the feed oil cylinder (82); the end of the piston rod (85) is fixedly connected to the middle part of the baffle (83); the side wall of the feed oil cylinder (82) is fixedly connected to a water pump (1); the middle part of the water pump (1) is fixedly connected to the A water outlet pipe (11) is connected; a water storage tank (12) is fixedly connected to the side wall of the oil feeding cylinder (82); the other end of the water outlet pipe (11) is fixedly connected to the side wall of the water storage tank (12), and a water injection pipe (13) is fixedly connected to the top of the water storage tank (12); a water inlet pipe (14) is fixedly connected to the top of the water storage tank (12); a heat conducting rod (15) is fixedly connected to the middle of the water inlet pipe (14); a plurality of groups of heat sinks (16) are fixedly connected to the middle of the heat conducting rod (15); the plurality of groups of heat sinks (16) are arranged in opposition; the other end of the water inlet pipe (14) is fixedly connected to the bottom of the water pump (1).
2. A hydraulic drilling rig feeding mechanism according to claim 1, characterized in that: Two telescopic rods (2) are fixedly connected to the top of the feed oil cylinder (82); the two telescopic rods (2) are fixedly connected to the inside of the feed oil cylinder (82); two springs (21) are fixedly connected to the top of the feed oil cylinder (82); the two springs (21) are fixedly connected to the outside of the corresponding telescopic rods (2); the other end of the spring (21) is fixedly connected to the middle of the piston plate (84).
3. A hydraulic drilling rig feeding mechanism according to claim 2, characterized in that: Two oil storage boxes (3) are fixedly connected to the side wall of the sliding block (81); the two oil storage boxes (3) are arranged opposite to each other; an oil storage cover (31) is fixedly connected to the top of the oil storage box (3); a connecting pipe (32) is fixedly connected to the bottom of the oil storage box (3); a sponge block (33) is fixedly connected to the bottom of the sliding block (81); the other end of the connecting pipe (32) is fixedly connected to the middle of the sponge block (33).
4. A hydraulic drilling rig feeding mechanism according to claim 3, characterized in that: A fixing plate (4) is fixedly connected to the bottom of the feed cylinder (82); a plurality of groups of bristles (41) are fixedly connected to the middle of the fixing plate (4); and the ends of the plurality of groups of bristles (41) are in contact with the surface of the piston rod (85).
5. A hydraulic drilling rig feeding mechanism according to claim 4, characterized in that: A plurality of groups of protection rods (5) are fixedly connected to the middle of the water inlet pipe (14); the plurality of groups of protection rods (5) are distributed at equal intervals; the plurality of groups of protection rods (5) are fixedly connected to the outside of the heat sink (16); and a mesh plate (51) is fixedly connected to the middle of the plurality of groups of protection rods (5).
6. A hydraulic drilling rig feeding mechanism according to claim 5, characterized in that: Two scrapers (6) are fixedly connected to the side wall of the piston plate (84); the two scrapers (6) are arranged opposite to each other; the ends of the two scrapers (6) are in contact with the inner wall of the feed cylinder (82); the scrapers (6) are fixedly connected to the side close to the spring (21).