A core drilling device capable of pushing cores

Abstract

The present invention relates to the technical field of engineering machinery, and in particular to a core drilling device for a core drilling rig capable of pushing a core, comprising: a core drilling bit rotary power mechanism, a guide rail, a drilling drive mechanism, a core pushing drive mechanism, a material pushing mechanism, a drilling propulsion seat, a spindle and a core drilling bit, wherein the core drilling bit rotary power mechanism is fixedly mounted on the surface of the core pushing drive mechanism, the material pushing mechanism is dynamically connected to the output end of the core drilling bit rotary power mechanism, the material pushing mechanism passes through the drilling propulsion seat and is slidably connected in the spindle and meshes circumferentially with the spindle, and the spindle is dynamically connected to the core drilling bit; a rack is provided on one side of the guide rail, the core pushing drive mechanism and the drilling drive mechanism mesh on the rack and are slidably connected to the surface of the guide rail, the core drilling bit rotary power mechanism is fixedly mounted on the core pushing drive mechanism, and the drilling propulsion seat is fixedly mounted on the drilling drive mechanism. The present invention can realize semi-automatic or even fully automatic coring, and improve the efficiency of coring operations.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a core drilling device capable of pushing a core. Background Art

[0002] Coring drills are widely used in engineering projects, such as geological exploration, tunneling, pile foundation excavation, etc. The principle of coring drills is to use a coring drill bit to cut into rock or concrete. Figure 1 The figure shows a schematic diagram of the drilling device of a conventional coring drill. The coring drill bit is located on one side of the gear box, and the power source of the coring drill bit is located on the other side of the gear box. The power source drives the coring drill bit to rotate and cut the rock through the gear box. The drilling device of the coring drill drives the gear box to move forward and backward, thereby driving the coring drill bit to cut into the rock. The coring drill bit is made of a relatively long hollow steel pipe. When the drill bit cuts into the rock, it encounters rock cracks and other conditions, and the core will break in the coring drill bit. For the next operation, the core must be removed from the coring drill bit. Since the outer diameter of the core is smaller than the inner diameter of the steel pipe of the coring drill bit, the core will be skewed in the coring drill bit. In addition, the irregularity of the core and the large amount of stones, mud and other things mixed in the coring drill bit make coring not easy. The conventional method is to remove the core by knocking the coring drill bit to vibrate it, or to split the coring drill bit in half to remove the core. This is very time-consuming and labor-intensive, and it is impossible to operate continuously, which brings great difficulties to the coring operation.

[0003] In view of this, it is urgent to design a core drilling device that can push the core, which can realize semi-automatic or even fully automatic coring and improve the efficiency of the coring operation. Summary of the invention

[0004] In order to solve the above deficiencies in the prior art, the object of the present invention is to provide a coring drill drilling device capable of pushing a core, which can realize semi-automatic or even fully automatic coring and improve the efficiency of the coring operation.

[0005] In order to achieve the above-mentioned objectives, the technical solution of the present invention is: a core drilling device for a core-pushing coring drill rig, comprising: a coring drill bit rotating power mechanism, a guide rail, a drilling drive mechanism, a core pushing drive mechanism, a material pushing mechanism, a drilling propulsion seat, a main shaft and a coring drill bit, wherein the coring drill bit rotating power mechanism is fixedly mounted on the surface of the core pushing drive mechanism, the material pushing mechanism is power-connected to the output end of the coring drill bit rotating power mechanism, the material pushing mechanism passes through the drilling propulsion seat and is slidably connected to the main shaft and circumferentially meshed with the main shaft, and the main shaft is power-connected to the coring drill bit; a rack is provided at the bottom of the guide rail, the core pushing drive mechanism and the drilling drive mechanism are meshed on the rack and slidably connected to the surface of the guide rail, the coring drill bit rotating power mechanism is fixedly mounted on the core pushing drive mechanism, and the drilling propulsion seat is fixedly mounted on the drilling drive mechanism.

[0006] Furthermore, the coring drill bit rotation power mechanism includes: a coring rotation power source and a gear box, the power output end of the coring rotation power source is power-connected to the power input end of the gear box, and the power output end of the gear box is power-connected to the pushing mechanism.

[0007] Furthermore, the coring rotation power source may be configured to include: a motor, a hydraulic motor, a pneumatic motor and other rotation actuators.

[0008] Furthermore, the pushing mechanism includes: a pushing rod and a pushing plate, one end of the pushing rod is dynamically connected to the output end of the gear box, the other end of the pushing rod passes through the propulsion seat and is slidably connected in the main shaft and fixedly connected to the pushing plate, and the outer diameter of the pushing plate matches the inner diameter of the coring drill bit.

[0009] Furthermore, the push rod is slidably connected in the main shaft, the outer diameter of the push rod is circumferentially meshed with the inner diameter of the main shaft, and the push rod cannot rotate relative to the main shaft and can only be axially slidably connected to each other.

[0010] Furthermore, the cross-section of the push rod can be set to a geometric shape such as a quadrilateral, pentagon, or hexagon, and the inner diameter shape of the main shaft is correspondingly matched with the cross-sectional shape of the push rod; the push rod and the main shaft can also be connected to each other through structures such as splines or sliding keys.

[0011] Furthermore, the main shaft may be provided with a mounting flange at one end.

[0012] Furthermore, the core pushing drive mechanism and the drilling drive mechanism are both provided with a rotating shaft with a gear, the gear is meshed with the rack, and the rotating shaft can be driven to rotate manually or by a rotating actuator such as a motor, a hydraulic motor, or a pneumatic motor.

[0013] Furthermore, the core pushing drive mechanism and the drilling drive mechanism can be configured as linear actuators such as oil cylinders or air cylinders, and the oil cylinders or air cylinders are used to push the coring drill bit rotation power mechanism and the drilling propulsion seat to move linearly along the guide rail.

[0014] Beneficial effects:

[0015] The present invention provides a core-pushing coring drill drilling device, which separates the rotational power and drilling power of the drill bit of the coring drill; a core pushing device is provided, and the core pushing mechanism is utilized to achieve the function of pushing the core to retrieve materials and to transmit the rotational power. Different core pushing operation requirements are met by flexibly moving the core pushing drive mechanism and the drilling drive mechanism, which greatly meets the needs of on-site construction operations and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a conventional coring drill;

[0017] Figure 2 It is a structural schematic diagram of a core drilling device of a core drilling rig capable of pushing a core according to the present invention;

[0018] Figure 3 It is a schematic structural diagram of a core pushing state of a pushing mechanism of a core drilling device of a core drilling rig capable of pushing a core according to the present invention;

[0019] Markings in the figure: 1-coring drill bit rotation power mechanism, 2-guide rail, 3-core pushing drive mechanism, 4-drilling drive mechanism, 5-pushing mechanism, 6-drilling propulsion seat, 7-spindle, 8-coring drill bit, 9-rotating shaft, 11-coring rotation power source, 12-gear box, 21-rack, 51-pushing rod, 52-pushing plate, 91-gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0021] As shown in the figure, the present invention discloses a core-pushing coring drill drilling device, comprising: a coring drill bit rotating power mechanism 1, a guide rail 2, a drilling drive mechanism 4, a core-pushing drive mechanism 3, a material pushing mechanism 5, a drilling propulsion seat 6, a main shaft 7 and a coring drill bit 8, wherein the coring drill bit rotating power mechanism 1 is fixedly mounted on the surface of the core-pushing drive mechanism 3, the material pushing mechanism 5 is power-connected to the output end of the coring drill bit rotating power mechanism 1, the material pushing mechanism 5 passes through the drilling propulsion seat 6 and is slidably connected in the main shaft 7 and circumferentially meshed with the main shaft 7, and the main shaft 7 is power-connected to the coring drill bit 8; a rack 21 is provided at the bottom of the guide rail 2, the core-pushing drive mechanism 3 and the drilling drive mechanism 4 are meshed on the rack 21 and are slidably connected to the surface of the guide rail 2, the coring drill bit rotating power mechanism 1 is fixedly mounted on the core-pushing drive mechanism, and the drilling propulsion seat 6 is fixedly mounted on the drilling drive mechanism 4.

[0022] In this embodiment, the coring drill bit rotation power mechanism 1 includes: a coring rotation power source 11 and a gear box 12, the power output end of the coring rotation power source 11 is power connected to the power input end of the gear box 12, and the power output end of the gear box 12 is power connected to the pushing mechanism 5.

[0023] In this embodiment, the coring rotation power source 11 can be configured to include: a motor, a hydraulic motor, a pneumatic motor and other rotation actuators.

[0024] In this embodiment, the pushing mechanism 5 includes: a pushing rod 51 and a pushing plate 52. One end of the pushing rod 51 is dynamically connected to the gear box 12. The other end of the pushing rod 51 passes through the propulsion seat and is slidably connected to the main shaft 7 and is fixedly connected to the pushing plate 52. The outer diameter of the pushing plate 52 matches the inner diameter of the coring drill bit 8.

[0025] In this embodiment, the push rod 51 is slidably connected inside the main shaft 7, the outer diameter of the push rod 51 is circumferentially meshed with the inner diameter of the main shaft 7, and the push rod 51 cannot rotate relative to the main shaft 7 and can only be axially slidably connected to each other.

[0026] In this embodiment, the cross-section of the push rod 51 can be set to a geometric shape such as a quadrilateral, pentagon, or hexagon, and the inner diameter shape of the main shaft 7 is correspondingly matched with the cross-sectional shape of the push rod 51; the push rod 51 and the main shaft 7 can be connected to each other through structures such as splines or sliding keys.

[0027] In this embodiment, the main shaft 7 may be provided with a mounting flange at one end.

[0028] In this embodiment, the core pushing drive mechanism 3 and the drilling drive mechanism 4 are both provided with a rotating shaft 9 with a gear 91, and the gear 91 is engaged with the rack 21. The rotating shaft 9 can be driven manually or rotated by a rotating actuator such as a motor, hydraulic motor, or pneumatic motor.

[0029] In this embodiment, the core pushing drive mechanism 3 and the drilling drive mechanism 4 can be set as linear actuators such as oil cylinders or air cylinders, and the coring drill bit rotation power mechanism 1 and the drilling propulsion seat 6 are pushed by the oil cylinders or the air cylinders to move linearly along the guide rail 2.

[0030] Example 1

[0031] like Figure 3As shown, the rotational power source of the core drill bit 8 is installed on one side of the gear box 12 as the power input source of the gear box 12. The other side of the gear box 12 is the power output end of the gear box 12. The power is connected to a push rod 51. The rotational power source of the core drill bit 8 drives the gear box 12 to work, and the output end of the gear box 12 drives the push rod 51 to rotate. A push plate 52 is fixedly installed on the other end of the push rod 51. The outer diameter of the push plate 52 matches the inner diameter of the core drill bit 8. Since the gear box 12 and the core pushing drive mechanism 3 are fixedly connected, and the core pushing drive mechanism 3 and the guide rail 2 are slidably connected, the core pushing drive mechanism 3 can slide axially along the guide rail 2, and a rack 21 is fixedly installed on the guide rail 2, and a gear 91 provided in the core pushing drive mechanism 3 is engaged with the rack 21. Therefore, the core pushing drive mechanism 3 can drive the gear box 12 to move on the guide rail 2, thereby driving the push rod 51 to move on the guide rail 2, thereby driving the push rod 51 to move on the guide rail 2, thereby driving the push plate 52 to move in the coring drill bit 8.

[0032] The coring drill bit 8 is fixedly connected to one end of the main shaft 7, the main shaft 7 is rotatably connected to the drilling propulsion seat 6, the drilling propulsion seat 6 is fixedly connected to the drilling drive mechanism 4, the drilling drive mechanism 4 is slidably connected to the guide rail 2, the drilling drive mechanism 4 can slide axially along the guide rail 2, a rack 21 is fixedly installed on the guide rail 2, a gear 91 is provided in the drilling drive mechanism 4, and the gear 91 is meshed with the rack 21. Therefore, the drilling drive mechanism 4 drives the drilling propulsion seat 6 to move on the guide rail 2, thereby driving the coring drill bit 8 to move on the guide rail 2, and then driving the coring drill bit 8 to drill into the rock.

[0033] Preferably, the core pushing drive mechanism 3 is fixed, and the drilling drive mechanism 4 drives the coring drill bit 8 forward, thereby realizing drilling and coring; the drilling propulsion mechanism drives the coring drill bit 8 to push backward, and at this time the pushing plate 52 is fixed, and the core in the coring drill bit 8 will be pushed out of the coring drill bit 8 by the pushing plate 52, thereby achieving the purpose of core pushing.

[0034] Furthermore, if the core pushing driving mechanism 3 is fixed at different positions, the pushing plate 52 will also be fixed at different positions, so as to control the position of the core pushing the coring drill bit 8 to meet different on-site requirements.

[0035] Preferably, the drilling drive mechanism 4 is fixed and the core pushing drive mechanism 3 moves forward, which can drive the pushing plate 52 to move forward in the coring drill bit 8 and also push the core in the coring drill bit 8 out.

[0036] Example 2

[0037] like Figure 3As shown, the push rod 51 can only be installed in the main shaft 7 axially slidably along the main shaft 7. By designing the shape of the push rod 51 and the inner hole shape of the main shaft 7, it can be achieved that the push rod 51 and the main shaft 7 cannot rotate relative to each other and can only slide axially relative to each other.

[0038] Preferably, the cross-sectional shape of the push rod 51 can be set to a geometric shape such as a quadrilateral, pentagon, or hexagon. By setting the inner hole of the main shaft 7 to a corresponding shape that circumferentially engages with the push rod 51, it is achieved that the push rod 51 and the main shaft 7 cannot rotate relative to each other and can only slide axially with each other.

[0039] Preferably, the push rod 51 and the main shaft 7 can also be connected to each other by using structures such as splines or sliding keys, so that the push rod 51 and the main shaft 7 cannot rotate relative to each other and can only slide axially relative to each other.

[0040] Furthermore, according to the connection structure between the push rod 51 and the main shaft 7, the push rod 51 and the main shaft 7 cannot rotate relative to each other and can only slide axially with each other. When the push rod 51 and the main shaft 7 are engaged, the push rod 51 cannot rotate relative to the main shaft 7, and the output power of the gear box 12 is transmitted to the main shaft 7 through the push rod 51. Since the main shaft 7 and the coring drill bit 8 are fixedly connected, the main shaft 7 is used to drive the coring drill bit 8 to rotate, thereby achieving rock cutting and coring.

[0041] Example 3

[0042] like Figure 3 As shown, the push rod 51 can only be installed in the mounting flange at one end of the coring drill bit 8 and can slide axially along the coring drill bit 8. By designing the cross-sectional shape of the push rod 51 and the inner hole shape of the mounting flange, it can be achieved that the push rod 51 and the coring drill bit 8 cannot rotate relative to each other and can only slide axially with each other.

[0043] Preferably, the cross-sectional shape of the push rod 51 can be set to a geometric shape such as a quadrilateral, pentagon, or hexagon. By setting the inner hole of the mounting flange to a corresponding shape that circumferentially engages with the push rod 51, it is achieved that the push rod 51 and the coring drill bit 8 cannot rotate relative to each other and can only slide axially with each other.

[0044] Preferably, the push rod 51 and the mounting flange can also be connected to each other by using structures such as splines or sliding keys, so that the push rod 51 and the coring drill bit 8 cannot rotate relative to each other and can only slide axially with each other.

[0045] The present invention provides a core-pushing coring drill drilling device, which separates the rotational power and drilling power of the drill bit of the coring drill; a core pushing device is provided, and the core pushing mechanism is utilized to achieve the function of pushing the core to retrieve the material and to transmit the rotational power, and different core pushing operation requirements are met by flexibly moving the core pushing drive mechanism 3 and the drilling drive mechanism 4, which greatly meets the needs of on-site construction operations, has strong practicability, and has certain market promotion prospects.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A core drilling device capable of pushing a core, comprising: A coring drill bit rotating power mechanism (1), a guide rail (2), a drilling drive mechanism (4), a core pushing drive mechanism (3), a material pushing mechanism (5), a drilling propulsion seat (6), a main shaft (7) and a coring drill bit (8), characterized in that the coring drill bit rotating power mechanism (1) is fixedly mounted on the surface of the core pushing drive mechanism (3), the material pushing mechanism (5) is connected to the output end of the coring drill bit rotating power mechanism (1), and the material pushing mechanism (5) passes through the drilling propulsion seat (6) to slide The guide rail (2) is provided with a rack (21) at the bottom, the core pushing drive mechanism (3) and the drilling drive mechanism (4) are meshed on the rack (21) and are slidably connected to the surface of the guide rail (2), the core pushing drive mechanism (3) and the drilling drive mechanism (4) are fixedly mounted on the core pushing drive mechanism, and the drilling propulsion seat (6) is fixedly mounted on the drill bit. The coring drill bit rotary power mechanism (1) comprises: a coring rotary power source (11) and a gear box (12); the power output end of the coring rotary power source (11) is connected to the power input end of the gear box (12); the power output end of the gear box (12) is connected to the push mechanism (5); the push mechanism (5) comprises: a push rod (51) and a push plate (52); one end of the push rod (51) is connected to the gear box (12), the other end of the push rod (51) passes through the pushing seat and is slidably connected in the main shaft (7) and fixedly connected to the push plate (52), and the outer diameter of the push plate (52) matches the inner diameter of the coring drill bit (8); the push rod (51) is slidably connected in the main shaft (7), and the outer diameter of the push rod (51) is circumferentially meshed with the inner diameter of the main shaft (7), and the push rod (51) cannot rotate relative to the main shaft (7) and can only be axially slidably connected to each other.

2. A core drilling device capable of pushing a core according to claim 1, characterized in that: The coring rotation power source (11) is configured as an electric motor, a hydraulic motor or a pneumatic motor.

3. A core drilling device capable of pushing a core according to claim 2, characterized in that: The cross section of the push rod (51) is configured to be a quadrilateral, a pentagon or a hexagon, and the inner diameter shape of the main shaft (7) is correspondingly matched with the cross section shape of the push rod (51); the push rod (51) and the main shaft (7) are connected to each other via a spline or a sliding key structure.

4. A core drilling device capable of pushing a core according to claim 3, characterized in that: One end of the main shaft (7) is provided with a mounting flange.

5. A core drilling device capable of pushing a core according to claim 4, characterized in that: The core pushing drive mechanism (3) and the drilling drive mechanism (4) are both provided with a rotating shaft (9) with a gear (91), the gear (91) is meshed with the rack (21), and the rotating shaft (9) is driven to rotate by an electric motor, a hydraulic motor or a pneumatic motor.

6. A core drilling device capable of pushing a core according to claim 5, characterized in that: The core pushing drive mechanism (3) and the drilling drive mechanism (4) are configured as oil cylinders or air cylinders, and the oil cylinders or air cylinders are used to push the core drilling bit rotating power mechanism (1) and the drilling propulsion seat (6) to move linearly along the guide rail (2).

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