Coal mine geological drilling rig

Abstract

The utility model relates to the technical field of drilling devices, and discloses a coal mine geological drilling device which comprises a supporting frame, a hydraulic cylinder is fixedly connected into the supporting frame, the output end of the hydraulic cylinder is fixedly connected with a fixing cover, the inner wall of the fixing cover is slidably connected with a sliding plate, and a drilling mechanism is installed in the center of the upper surface of the sliding plate. A buffer assembly is mounted on one side of the lower surface of the fixed cover; and the buffering assembly comprises a sleeve, one side of the outer wall of the sleeve is rotationally connected to one side of the lower surface of the fixing cover, a sliding rod is slidably connected into the sleeve, one end of the sliding rod is fixedly connected with a half gear, and the half gear is rotationally connected to the upper surface of the sliding plate through a supporting block. The hydraulic cylinder drives the drilling mechanism to ascend and descend, the sliding plate is pressed to drive the sleeve to rotate, the half gear at one end of the sliding rod rotates and drives the rack plate to compress the first spring, drilling vibration is effectively buffered, impact force is reduced, parts are prevented from being loosened and damaged, the overall stability is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling device technical field, concretely is a coal mine geological drilling device. BACKGROUND

[0002] With the sustained deepening of coal resource development, the coal mine underground geological drilling operation has become an indispensable important link in mine exploration, disaster control and resource assessment. The geological drilling device is the key equipment for realizing rock core taking, geological parameter collection and hidden danger identification, and its working performance directly affects the drilling precision, construction efficiency and equipment stability. Especially in the complex geological structure and hard rock environment, the drilling equipment needs to have higher bearing capacity and impact resistance to adapt to the continuous and high-intensity operation demand.

[0003] At present, the common coal mine geological drilling device generally adopts a lifting drilling structure driven by hydraulic pressure or electricity, the drill bit and the drill rod are rotated and cut through the power transmission device, and the guiding mechanism and the anti-rebound structure are supplemented to ensure the drilling precision. At the same time, some equipment introduces a multi-stage damping or reinforced support structure in the aspect of improving stability, and through the linkage between mechanical components, the vibration and impact load in the drilling process are resisted to ensure the stable operation of the drilling process.

[0004] However, in the hard rock drilling process, the traditional drilling device lacks effective buffer structure, which causes uneven force on the drill bit and severe vibration, and easily causes internal connecting components to loosen, parts to fatigue and even damage, seriously affecting the drilling efficiency and equipment service life, so a coal mine geological drilling device is proposed to solve the above problems. SUMMARY

[0005] The utility model discloses a coal mine geological drilling device to solve the problems in the background art. A coal mine geological drilling device comprises a support frame, a hydraulic cylinder is fixedly connected inside the support frame, a fixed cover is fixedly connected to the output end of the hydraulic cylinder, a sliding plate is slidably connected to the inner wall of the fixed cover, a drilling mechanism is installed at the center of the upper surface of the sliding plate, and a buffer assembly is installed on one side of the lower surface of the fixed cover.

[0006] The buffer assembly comprises a sleeve, one side of the outer wall of the sleeve is rotatably connected to one side of the lower surface of the fixed cover, a sliding rod is slidably connected inside the sleeve, one end of the sliding rod is fixedly connected with a half gear, the half gear is rotatably connected to the upper surface of the sliding plate through a support block, a limiting rod one is fixedly connected to the side close to the half gear, a rack plate and a spring one are sleeved on the outer wall of the limiting rod one, the rack plate is meshed with the gear end of the half gear, and an auxiliary assembly is installed on one side of the outer wall of the sleeve.

[0007] Further, the auxiliary assembly comprises a rotating plate one, one side of the outer wall of the rotating plate one is rotationally connected to one side of the outer wall of the sleeve, a sliding sleeve is rotationally connected to the other side of the outer wall of the rotating plate one, a support is fixedly connected to the outer wall of the sliding sleeve, and the outer wall of the support is sleeved with a spring two.

[0008] Further, the drilling mechanism comprises a motor and a drill rod, the upper end of the drill rod is fixedly connected to the output end of the motor, and the lower surface of the motor is fixedly connected to the center of the upper surface of the sliding plate.

[0009] Further, the lower surface of the support frame is fixedly connected with a mobile vehicle, and the outer wall of the mobile vehicle is provided with a fixed cylinder.

[0010] Further, the fixed cylinder is fixedly connected with a plug rod inside, the plug rod is provided with a connecting rod inside, the upper end of the connecting rod is fixedly connected with a limiting rod two, and the outer wall of the limiting rod two is provided in the fixed cylinder.

[0011] Further, the lower end of the connecting rod is fixedly connected with a sliding block, the outer wall of the sliding block is slidably connected to the inside of the plug rod, the outer wall of the sliding block is rotationally connected with a rotating plate two, one side of the outer wall of the rotating plate two is rotationally connected with an outer support plate, one side of the outer wall of the outer support plate is rotationally connected to one side of the outer wall of the plug rod, the outer wall of the connecting rod is sleeved with a spring three, the upper end of the spring three is fixedly connected to the inner wall top of the plug rod, and the lower end of the spring three is fixedly connected to the upper surface of the sliding block.

[0012] Further, one side of the outer wall of the limiting rod one is fixedly connected with the upper end of the spring one, the lower end of the spring one is fixedly connected to the upper surface of the rack plate, one side of the outer wall of the support is fixedly connected with one end of the spring two, and the other end of the spring two is fixedly connected to the outer wall of the sliding sleeve.

[0013] Further, the outer wall of the sliding plate is fixedly connected with a pulley plate, and the outer wall of the pulley plate is arranged on the outer wall of the support frame.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、in the utility model, the drilling mechanism is driven by the hydraulic cylinder to realize the drilling operation, when the sliding plate receives pressure, the sleeve is extruded by the fixed cover and the sliding plate, the sleeve rotates to make the half gear on one end of the slide rod rotate on one side of the supporting block, the half gear drives the rack plate to extrude the spring one, and the effect of reducing the vibration pressure of the drilling mechanism is realized, the problem that the traditional device is easily damaged by the loose internal parts caused by the large oscillation in hard rock layer is solved, and the practicability of the device is improved.

[0016] 2. The utility model discloses a mobile vehicle is prevented from moving when running and improves the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A three-dimensional structure schematic diagram of the coal mine geological drilling device is provided for the utility model;

[0018] Figure 2 A pulley plate partial structure schematic diagram of the coal mine geological drilling device is provided for the utility model;

[0019] Figure 3 A sliding plate partial structure schematic diagram of the coal mine geological drilling device is provided for the utility model;

[0020] Figure 4 A fixed cylinder partial structure schematic diagram of the coal mine geological drilling device is provided for the utility model.

[0021] In the drawing: 1, support frame; 2, hydraulic cylinder; 3, fixed cover; 4, pulley plate; 5, mobile vehicle; 6, drilling mechanism; 601, motor; 602, drill rod; 7, sliding plate; 8, sleeve; 9, sliding rod; 10, support block; 11, half gear; 12, limit rod one; 13, rack plate; 14, spring one; 15, rotating plate one; 16, sliding sleeve; 17, support; 18, spring two; 19, fixed cylinder; 20, limit rod two; 21, plug rod; 22, sliding block; 23, rotating plate two; 24, outer bracing plate; 25, connecting rod; 26, spring three. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0023] REFERENCE Figures 1-4The utility model provides a kind of embodiment: a coal mine geological drilling device, including support frame 1, support frame 1 inside fixedly connected with hydraulic cylinder 2, hydraulic cylinder 2 is used to provide driving force in vertical direction, realize the lifting adjustment function of drilling mechanism 6;Hydraulic cylinder 2 output end fixedly connected with fixed cover 3, fixed cover 3 plays the role of bearing and stable drilling structure;Fixed cover 3 inner wall slidingly connected with sliding plate 7, sliding plate 7 is used as support platform to install drilling mechanism 6, and bear vertical impact load in drilling operation.Sliding plate 7 upper surface center is installed with drilling mechanism 6, and drilling mechanism 6 is used to break and take core to geological layer;Fixed cover 3 lower surface one side is installed with buffer assembly;Buffer assembly includes sleeve 8, sleeve 8 outer wall one side is rotatably connected on fixed cover 3 lower surface one side, so that sleeve 8 can be squeezed action and corresponding swing displacement occur with sliding plate 7;Sleeve 8 inside slidingly connected with slide 9, and slide 9 is used for conducting the vertical load of sliding plate 7 to the internal structure of sleeve 8;Slide 9 one end fixedly connected with half gear 11, and half gear 11 is rotatably connected on the upper surface of sliding plate 7 by support block 10, so that sliding load is converted into rotary motion to drive rack plate 13;Limiting rod one 12 is fixedly connected on the side close to half gear 11, and limiting rod one 12 is used for guiding and limiting, and the movement amplitude of slide 9 is limited;Rack plate 13 and spring one 14 are sleeved on the outer wall of limiting rod one 12, and rack plate 13 is engaged with the tooth end of half gear 11 for transmitting rotary power, and spring one 14 is used for providing elastic buffer stroke under the action of impact load, effectively reducing shock;Sleeve 8 outer wall one side is installed with auxiliary assembly;Auxiliary assembly includes rotating plate one 15, and rotating plate one 15 outer wall one side is rotatably connected on the outer wall of sleeve 8, provides auxiliary rotating support function;Rotating plate one 15 outer wall other side is rotatably connected with slide sleeve 16, and slide sleeve 16 inner wall is slidingly connected on the outer wall of support 17, and support 17 outer wall is sleeved with spring two 18, for reversely elastically resetting slide sleeve 16, improves the stability and recovery ability of sleeve 8 action;Drilling mechanism 6 includes motor 601 and drill rod 602, and drill rod 602 upper end is fixedly connected in the output end of motor 601, and the lower surface of motor 601 is fixedly connected on the upper surface center of sliding plate 7, and motor 601 provides rotary power for drilling, drives drill rod 602 to complete penetration drilling process.

[0024] Specifically, sliding plate 7 is driven to lift by hydraulic cylinder 2, to realize the vertical propulsion of drilling mechanism 6.In the drilling process, sliding plate 7 is pressed downward to sleeve 8, drives slide 9 to rotate half gear 11, and through rack plate 13 engaged with it, compresses spring one 14, forms a set of shock-absorbing system by rotation conversion into linear buffer;The structure can effectively absorb impact force in the drilling process, reduce the influence of equipment vibration on internal connecting piece, prolong the service life of whole machine, improve drilling stability and reliability. Figures 1-4The lower surface of the support frame 1 is fixedly connected with a mobile vehicle 5, which is used to support the whole drilling device and realize the moving function of the whole drilling device on the coal mine geological operation site, facilitating positioning and carrying. The outer wall of the mobile vehicle 5 is provided with a fixed cylinder 19, which is used to provide a vertical installation structure base for the insertion rod 21. The insertion rod 21 is fixedly connected inside the fixed cylinder 19, and the insertion rod 21 is used as an intermediate connecting structure to connect the mobile vehicle 5 and the limiting mechanism, and to realize the release and locking of the structure through sliding. The insertion rod 21 is provided with a connecting rod 25 penetrating through the inside of the insertion rod 21, and the connecting rod 25 is used to transmit the up-down movement of the limiting and buffering assembly. The upper end of the connecting rod 25 is fixedly connected with a limiting rod two 20, and the outer wall of the limiting rod two 20 penetrates through the inside of the fixed cylinder 19. The limiting rod two 20 is used to limit the up-down movement range of the connecting rod 25 during the system operation, so as to ensure the safe and stable operation. The lower end of the connecting rod 25 is fixedly connected with a sliding block 22, which is used as a movement executing part of the connecting rod 25, and the outer wall of the sliding block 22 is slidingly connected in the inside of the insertion rod 21 to realize the guided movement. The outer wall of the sliding block 22 is rotatably connected with a rotating plate two 23, which is used to cooperate with the rotating release action of the executing mechanism. The outer wall of the rotating plate two 23 is rotatably connected with an outer support plate 24 on one side, and the outer support plate 24 plays a limiting and supporting auxiliary function, which can provide lateral constraint during structure adjustment. The outer wall of the outer support plate 24 is rotatably connected on one side of the outer wall of the insertion rod 21, so as to enhance the support stiffness of the outer support plate 24 to the insertion rod 21. The outer wall of the connecting rod 25 is sleeved with a spring three 26, which provides elastic restoring force for the mechanism. The upper end of the spring three 26 is fixedly connected to the inner wall top of the insertion rod 21, and the lower end is fixedly connected to the upper surface of the sliding block 22, which can effectively absorb the vertical impact and relieve the impact load when the sliding block 22 moves up and down. The upper end of the spring one 14 is fixedly connected to one side of the outer wall of the limiting rod one 12, and the lower end of the spring one 14 is fixedly connected to the upper surface of the rack plate 13, which is used for the elastic buffering support of the rack plate 13 during drilling. One end of the spring two 18 is fixedly connected to one side of the outer wall of the support 17, and the other end is fixedly connected to the outer wall of the sliding sleeve 16, which is used to absorb the reaction force of the movement of the sliding sleeve 16 and maintain the stability of the guide. The outer wall of the sliding plate 7 is fixedly connected with a pulley plate 4, and the outer wall of the pulley plate 4 is arranged on the outer wall of the support frame 1, which is used to assist the stable up-down movement of the sliding plate 7 and bear the dynamic load brought by the drilling structure.

[0025] Specifically, by setting the mobile vehicle 5 and the fixed cylinder 19 structure, the rapid movement and stable installation of the device on the operation surface are realized. The structure cooperation of the connecting rod 25, the limiting rod two 20 and the sliding block 22 can realize the vertical direction guiding and limiting, avoiding sliding out of range. The setting of the spring three 26 can absorb the vertical impact load and improve the stability of the whole machine. The addition of the pulley plate 4 further enhances the running stability of the sliding plate 7, provides accurate structure support and buffering control for the drilling process, and improves the applicability and safety of the drilling device.

[0026] Working principle: when the drilling device is needed, first of all, the mobile vehicle 5 is moved to the drilling area, the insertion rod 21 is inserted into the soil by pressing the fixed cylinder 19, the connecting rod 25 is pushed to slide the sliding block 22 by pressing the limiting rod two 20, at this time, the sliding block 22 slides, and the rotating plate two 23 is driven to rotate to make the outer support plate 24 outwardly support, the effect of preventing the mobile vehicle 5 from moving is realized by the setting of the outer support plate 24, at this time, the hydraulic cylinder 2 and the motor 601 are started, the drill rod 602 is driven to rotate by the motor 601, the drilling operation is realized, the fixed cover 3 is pushed down by the hydraulic cylinder 2, the sliding plate 7 is slid by the pulley plate 4, and the effect of limiting and stabilizing movement can be realized, when hard rock layer is encountered, the sliding plate 7 receives pressure, the pressure is transmitted to the sleeve 8 by the fixed cover 3, the sleeve 8 rotates, the sliding rod 9 slides in the sleeve 8, and the half gear 11 rotates in the supporting block 10, at this time, the half gear 11 meshes with the rack plate 13, the rack plate 13 is pressed to extrude the spring one 14, the effect of preliminary reducing impact force is realized, the sleeve 8 rotates, the rotating plate one 15 is driven to rotate, the sliding sleeve 16 is pressed to extrude the spring two 18, and the effect of further reducing impact force is realized.

[0027] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A geological drilling device for coal mines, comprising a support frame (1), characterized in that: The support frame (1) is internally fixedly connected with a hydraulic cylinder (2), the output end of the hydraulic cylinder (2) is fixedly connected with a fixed cover (3), the inner wall of the fixed cover (3) is slidably connected with a sliding plate (7), the upper surface center of the sliding plate (7) is installed with a drilling mechanism (6), and the lower surface of the fixed cover (3) is installed with a buffer assembly; The buffer assembly comprises a sleeve (8), one side of the outer wall of the sleeve (8) is rotatably connected to one side of the lower surface of the fixed cover (3), the inside of the sleeve (8) is slidably connected with a sliding rod (9), one end of the sliding rod (9) is fixedly connected with a half gear (11), the half gear (11) is rotatably connected to the upper surface of the sliding plate (7) through a support block (10), one side close to the half gear (11) is fixedly connected with a limiting rod (12), the outer wall of the limiting rod (12) is sleeved with a rack plate (13) and a spring (14), the rack plate (13) is engaged with the gear end of the half gear (11), and one side of the outer wall of the sleeve (8) is installed with an auxiliary assembly.

2. The coal mine geological drilling device according to claim 1, characterized in that: The auxiliary assembly comprises a rotating plate (15), one side of the outer wall of the rotating plate (15) is rotatably connected to one side of the outer wall of the sleeve (8), the other side of the outer wall of the rotating plate (15) is rotatably connected with a sliding sleeve (16), one side close to the sliding sleeve (16) of the upper surface of the sliding plate (7) is fixedly connected with a support (17), the inner wall of the sliding sleeve (16) is slidably connected to the outer wall of the support (17), and the outer wall of the support (17) is sleeved with a spring (18).

3. The coal mine geological drilling device according to claim 1, characterized in that: The drilling mechanism (6) comprises a motor (601) and a drill rod (602), the upper end of the drill rod (602) is fixedly connected to the output end of the motor (601), and the lower surface of the motor (601) is fixedly connected to the upper surface center of the sliding plate (7).

4. The coal mine geological drilling device according to claim 1, characterized in that: The lower surface of the support frame (1) is fixedly connected with a mobile vehicle (5), and the outer wall of the mobile vehicle (5) is provided with a fixed cylinder (19).

5. A geological drilling apparatus for coal mines as claimed in claim 4, wherein: The inside of the fixed cylinder (19) is fixedly connected with a plug rod (21), the inside of the plug rod (21) is throughly provided with a connecting rod (25), the upper end of the connecting rod (25) is fixedly connected with a limiting rod (20), and the outer wall of the limiting rod (20) is throughly provided in the inside of the fixed cylinder (19).

6. A geological drilling apparatus for coal mines as claimed in claim 5, wherein: The lower end of the connecting rod (25) is fixedly connected with a sliding block (22), the outer wall of the sliding block (22) is slidably connected in the inside of the plug rod (21), the outer wall of the sliding block (22) is rotatably connected with a rotating plate (23), one side of the outer wall of the rotating plate (23) is rotatably connected with an outer support plate (24), one side of the outer wall of the outer support plate (24) is rotatably connected to one side of the outer wall of the plug rod (21), the outer wall of the connecting rod (25) is sleeved with a spring (26), the upper end of the spring (26) is fixedly connected to the inner wall top of the plug rod (21), and the lower end of the spring (26) is fixedly connected to the upper surface of the sliding block (22).

7. The coal mine geological drilling device according to claim 2, characterized in that: The upper end of the spring one (14) is fixedly connected to one side of the outer wall of the limiting rod one (12), the lower end of the spring one (14) is fixedly connected to the upper surface of the rack plate (13), one end of the spring two (18) is fixedly connected to one side of the outer wall of the support (17), and the other end of the spring two (18) is fixedly connected to the outer wall of the sliding sleeve (16).

8. The coal mine geological drilling device according to claim 1, characterized in that: The outer wall of the sliding plate (7) is fixedly connected with a pulley plate (4), and the outer wall of the pulley plate (4) is arranged on the outer wall of the support frame (1).

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