Multi-gear variable-gear core drill power head

Abstract

The utility model belongs to the technical field of drilling machine equipment, and particularly relates to a multi-gear variable-gear core drilling machine power head which comprises a power box, a gear shifting box is arranged on the top of the power box, and a first gear shifting shaft, a second gear shifting shaft and a third gear shifting shaft are arranged on the gear shifting box. The gear shifting handles are arranged on the first gear shifting shaft, the second gear shifting shaft and the third gear shifting shaft, the gear shifting handles of the first gear shifting shaft, the second gear shifting shaft and the third gear shifting shaft are moved into the corresponding gear clamping grooves to carry out gear shifting on the drilling machine power head, and according to the drilling requirements of different geologies, a worker carries out gear shifting, gear shifting is convenient, and the working efficiency is improved. The gear shifting handles corresponding to the first gear shifting shaft, the second gear shifting shaft and the third gear shifting shaft are moved into the corresponding gear clamping grooves, gear shifting of the drilling machine power head can be achieved, gear replacement is convenient, the output speed and torque of the drilling machine power head are convenient to adjust, multifunctionality of the drilling machine is achieved, and the device is low in use cost, good in impact resistance effect and suitable for popularization and application. The device is more suitable for field core operation.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a power head of a core drilling rig with multiple and variable gears. Background Art

[0002] The power head of a drilling rig is a key component of the drilling rig, which is used to drive the drill bit to drill holes. The power head type drilling rig can achieve long-stroke feeding and tower-free lifting. It can easily lift and lower the drill rod when drilling holes at various angles. It has shown obvious advantages in tunnel drilling and has become the leading model of tunnel drilling rigs in many countries. The output speed of the traditional drilling rig power head is not variable. In actual operation, it cannot adapt to complex geological conditions. It needs to use throttling and other methods to adjust the speed and torque, which is very inconvenient. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a core drilling rig power head with multiple gears and variable gears.

[0004] A multi-speed variable gear core drilling rig power head, comprising a power box, a longitudinally extending main shaft is provided on the power box, a power input gear is installed on the main shaft in the power box, when the power output gear drives the power input gear to rotate, the drilling rig power head is in the first gear, when the transmission output gear drives the power input gear to rotate, the drilling rig power head is in the second gear, when the driving gear drives the power input gear to rotate, the drilling rig power head is in the third gear, when the transmission input gear drives the power input gear to rotate, the drilling rig power head is in the fourth gear, a shift box is provided on the top of the power box, a first shift shaft, a second shift shaft and a third shift shaft are provided on the shift box, and shift handles are provided on the first shift shaft, the second shift shaft and the third shift shaft, and the drilling rig power head changes gears by moving the shift handles of the first shift shaft, the second shift shaft and the third shift shaft to the corresponding gear slots.

[0005] Furthermore, the bottom of the first shift shaft is connected to the power output gear through a bracket, the bottom of the second shift shaft is connected to the transmission gear through a bracket, and the bottom of the third shift shaft is connected to the drive gear through a bracket.

[0006] Furthermore, when the drilling rig power head is in first gear, the first gear shifting shaft and the second gear shifting shaft are respectively located at the slots corresponding to the first gear, and the third gear shifting shaft is located at the slots corresponding to the first, second and fourth gears. The power input gear is meshed with the power output gear, and the mounting shaft of the power output gear is transmission-connected to the motor, and the motor is installed above the power box.

[0007] Furthermore, when the drilling rig power head is in the second gear, the first gear shifting shaft is located at the slots corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slots corresponding to the second gear, the third gear shifting shaft is located at the slots corresponding to the first, second and fourth gears, the power output gear is meshed with the intermediate input gear, the intermediate input gear is coaxially arranged with the transmission output gear, and the transmission output gear is meshed with the power input gear.

[0008] Furthermore, when the drilling rig power head is in the third gear, the first gear shifting shaft is located at the slots corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slots corresponding to the third and fourth gears, the third gear shifting shaft is located at the slot corresponding to the third gear, the power output gear is meshed with the intermediate input gear, the intermediate input gear is coaxially arranged with the transmission output gear, the transmission output gear is meshed with the intermediate output gear, the intermediate output gear is coaxially arranged with the drive gear, and the drive gear is meshed with the power input gear.

[0009] Furthermore, when the drilling rig power head is in the fourth gear, the first gear shifting shaft is located at the slots corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slots corresponding to the third and fourth gears, the third gear shifting shaft is located at the slots corresponding to the first, second and fourth gears, the power output gear is meshed with the intermediate input gear, the intermediate input gear is coaxially arranged with the transmission output gear, the transmission output gear is meshed with the intermediate output gear, the intermediate output gear is coaxially arranged with the driving gear, the driving gear is meshed with the driving gear, the driving gear is coaxially arranged with the transmission input gear, and the transmission input gear is meshed with the power input gear.

[0010] Furthermore, it also includes a gear clamping assembly, which includes a baffle plate abutting against the gear shift handle, the baffle plate is connected to a fixed plate via a plurality of telescopic rods, the fixed plate is fixedly installed in the power box, and a spring is provided on the outer periphery of the telescopic rod, one end of the spring is connected to the baffle plate, and the other end is connected to the fixed plate.

[0011] Furthermore, a locking assembly is provided on the bottom inner wall of the gear shift box, and the locking assembly includes a fixed seat, a transverse sliding groove is provided in the fixed seat, the first shift shaft, the second shift shaft and the third shift shaft all pass through the fixed seat longitudinally, a long locking rod is provided between the first shift shaft and the second shift shaft, a short locking rod is provided between the second shift shaft and the third shift shaft, balls are provided at both ends of the long locking rod and the short locking rod, and corresponding locking grooves are provided on the first shift shaft, the second shift shaft and the third shift shaft.

[0012] Furthermore, the bottom of the power box is provided with guide columns which are slidably connected to the first shift shaft, the second shift shaft and the third shift shaft.

[0013] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is as follows: according to the drilling needs of different geological conditions, the staff can change the gears by moving the shift handles corresponding to the first shift shaft, the second shift shaft and the third shift shaft to the corresponding gear slots, so as to realize the shifting of the drilling rig power head. The gear change is convenient, and it is easy to adjust the output speed and torque of the drilling rig power head, thereby realizing the versatility of the drilling machine. In addition, the device has low use cost and good impact resistance, and is more suitable for field core operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a power head of a core drilling rig with multiple variable gears according to the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the power box in the utility model;

[0016] Figure 3 This is a front view of the internal structure of the power box in the utility model;

[0017] Figure 4 It is a rear view of the internal structure of the power box in the utility model;

[0018] Figure 5 It is a schematic cross-sectional structure diagram of the power box and the shift box in the utility model.

[0019] In the figure, 1, power box, 2, main shaft, 3, power input gear, 4, power output gear, 5, transmission output gear, 6, driving gear, 7, transmission input gear, 8, shift box, 9, first shift shaft, 10, second shift shaft, 11, third shift shaft, 12, shift handle, 13, slot, 14, bracket, 15, motor, 16, intermediate input gear, 17, intermediate output gear, 18, driving gear, 19, baffle, 20, telescopic rod, 21, spring, 22, fixing plate, 23, fixing seat, 24, slide groove, 25, long locking rod, 26, short locking rod, 27, ball, 28, locking groove, 29, guide column. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0021] according to Figure 1-5As shown, a multi-speed variable gear core drilling rig power head comprises a power box 1, the power box 1 is provided with a longitudinally extending main shaft 2, a power input gear 3 is installed on the main shaft 2 in the power box 1, when the power output gear 4 drives the power input gear 3 to rotate, the drilling rig power head is in the first gear, when the transmission output gear 5 drives the power input gear 3 to rotate, the drilling rig power head is in the second gear, when the driving gear 6 drives the power input gear 3 to rotate, the drilling rig power head is in the third gear, when the transmission input gear 7 drives the power input gear 3 to rotate, the drilling rig power head is in the fourth gear, a shift box 8 is provided on the top of the power box 1, a first shift shaft, a second shift shaft 10 and a third shift shaft 11 are provided on the shift box, and a shift handle 12 is provided on the first shift shaft, the second shift shaft 10 and the third shift shaft 11, and the gear of the drilling rig power head is changed by moving the shift handles 12 of the first shift shaft, the second shift shaft 10 and the third shift shaft 11 to the corresponding gear slots 13.

[0022] In the above-mentioned specific technical scheme, according to the drilling needs of different geological conditions, the staff changes the gears and moves the shift handles corresponding to the first shift shaft, the second shift shaft 10 and the third shift shaft 11 to the corresponding gear slots 13, so as to realize the shifting of the drilling rig power head. The gear change is convenient, and it is easy to adjust the output speed and torque of the drilling rig power head, thereby realizing the versatility of the drilling machine. In addition, the device has low use cost and good impact resistance, and is more suitable for field core operations.

[0023] The bottom of the first shift shaft is connected to the power output gear 4 through the bracket 14, the bottom of the second shift shaft is connected to the transmission gear through the bracket 14, and the bottom of the third shift shaft is connected to the driving gear 6 through the bracket 14. By moving the shift handle, the first shift shaft, the second shift shaft and the third shift shaft are lifted and lowered, so that the bracket 14 drives different gears to engage with the power input gear 3, drives the power input gear 3 to rotate, and drives the main shaft 2 to rotate, thereby performing drilling work.

[0024] When the drilling rig power head is in first gear, the first gear shifting shaft and the second gear shifting shaft are respectively located at the slots 13 corresponding to the first gear, and the third gear shifting shaft is located at the slots 13 corresponding to the first, second and fourth gears. The power input gear 3 is meshed with the power output gear 4, and the mounting shaft of the power output gear 4 is transmission-connected with the motor 15, and the motor 15 is installed above the power box 1.

[0025] When the drilling rig power head is in the second gear, the first gear shifting shaft is located at the slot 13 corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slot 13 corresponding to the second gear, the third gear shifting shaft is located at the slot 13 corresponding to the first, second and fourth gears, the power output gear 4 is meshed with the intermediate input gear 16, the intermediate input gear 16 is coaxially arranged with the transmission output gear 5, and the transmission output gear 5 is meshed with the power input gear 3.

[0026] When the drilling rig power head is in the third gear, the first gear shifting shaft is located at the slot 13 corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slot 13 corresponding to the third and fourth gears, the third gear shifting shaft is located at the slot 13 corresponding to the third gear, the power output gear 4 is meshed with the intermediate input gear 16, the intermediate input gear 16 is coaxially arranged with the transmission output gear 5, the transmission output gear 5 is meshed with the intermediate output gear 17, the intermediate output gear 17 is coaxially arranged with the drive gear 6, and the drive gear 6 is meshed with the power input gear 3.

[0027] When the drilling rig power head is in the fourth gear, the first gear shifting shaft is located at the slot 13 corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slot 13 corresponding to the third and fourth gears, the third gear shifting shaft is located at the slot 13 corresponding to the first, second and fourth gears, the power output gear 4 is meshed with the intermediate input gear 16, the intermediate input gear 16 is coaxially arranged with the transmission output gear 5, the transmission output gear 5 is meshed with the intermediate output gear 17, the intermediate output gear 17 is coaxially arranged with the driving gear 6, the driving gear 6 is meshed with the driving gear 18, the driving gear 18 is coaxially arranged with the transmission input gear 7, and the transmission input gear 7 is meshed with the power input gear 3.

[0028] In the above specific technical solution, the drilling rig power head can be changed into four gears, which increases its adaptability to complex terrain. Different torques can be output by adjusting the gears. The maximum output torque is 5412n.m and the maximum output speed is 1300r / min.

[0029] It also includes a gear clamping assembly, which includes a baffle plate 19 abutting against the shift handle 12, and the baffle plate 19 is connected to a fixed plate 22 through a plurality of telescopic rods 20, and the fixed plate 22 is fixedly installed in the power box 1, and a spring 21 is sleeved on the outer periphery of the telescopic rod 20, and one end of the spring 21 is connected to the baffle plate 19, and the other end is connected to the fixed plate 22.

[0030] In the above specific solution, a clamping assembly is provided, and after the gear position is changed, the baffle plate 19 is in close contact with the gear shift handle under the action of the spring 21 to prevent the gear from falling out during the use of the device.

[0031] A locking assembly is provided on the inner wall of the bottom of the shift box, and the locking assembly includes a fixed seat 23, a transverse slide groove 24 is provided in the fixed seat 23, the first shift shaft, the second shift shaft 10 and the third shift shaft 11 all pass through the fixed seat 23 longitudinally, a long locking rod 25 is provided between the first shift shaft and the second shift shaft 10, a short locking rod 26 is provided between the second shift shaft 10 and the third shift shaft 11, balls 27 are provided at both ends of the long locking rod 25 and the short locking rod 26, and corresponding locking grooves 28 are provided on the first shift shaft, the second shift shaft 10 and the third shift shaft 11.

[0032] In the above specific technical scheme, by setting a locking assembly, when the drilling rig power head is changed to a specified gear position, the balls 27 at both ends of the long locking rod 25 and the short locking rod 26 are used to lock the first shift shaft, the second shift shaft 10 and the third shift shaft 11, thereby preventing the gears in the power box 1 from being damaged due to gear shift errors. When the drilling rig power head is in first gear, the shift handle of the third shift shaft 11 moves to the "1st, 2nd and 4th gears", and the shift handle of the second shift shaft 10 moves to the "1st gear". At this time, the ball 27 on the short locking rod 26 is embedded in the locking groove 28 of the third shift shaft 11, the shift handle of the first shift shaft moves to the "1st gear", and the steel ball of the long locking rod 25 is embedded in the locking groove 28 of the second shift shaft 10. When the drilling rig power head is in second gear, the shift handle of the first shift shaft moves to the "2nd, 3rd and 4th gears", the shift handle of the second shift shaft 10 moves to the "2nd gear", the steel ball of the long locking rod 25 is embedded in the locking groove 28 of the first shift shaft, the shift handle of the third shift shaft 11 is located at the "1st, 2nd and 4th gears", and the steel ball of the short locking rod 26 is embedded in the locking groove 28 of the third shift shaft. The gear shift handle of the second shift shaft 10 is moved to the "third and fourth gear" position, the gear shift handle of the third shift shaft 11 is moved to the "third gear" position, the steel ball of the short locking rod 26 is embedded in the locking groove 28 of the second shift shaft 10, the gear shift handle of the first shift shaft is located at the "second, third and fourth gear", and the steel ball of the long locking rod 25 is embedded in the first shift shaft. When the drilling rig power head is in the fourth gear, the gear shift handle of the third shift shaft 11 is moved to the "first, second and fourth gear", the gear shift handle of the second shift shaft 10 is located at the "third and fourth gear", and the gear shift handle of the first shift shaft is located at the "second, third and fourth gear", the steel ball of the short locking rod 26 is embedded in the locking groove 28 of the second shift shaft 10, and the steel ball of the long locking rod 25 is embedded in the first shift shaft.

[0033] The bottom of the power box 1 is provided with guide columns 29 which are slidably connected to the first shift shaft, the second shift shaft 10 and the third shift shaft 11 respectively.

[0034] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A core drilling rig power head with multiple variable gears, comprising a power box (1), characterized in that: The power box (1) is provided with a longitudinally extending main shaft (2), and a power input gear (3) is installed on the main shaft (2) in the power box (1). When the power output gear (4) drives the power input gear (3) to rotate, the drilling rig power head is in the first gear, when the transmission output gear (5) drives the power input gear (3) to rotate, the drilling rig power head is in the second gear, when the driving gear (6) drives the power input gear (3) to rotate, the drilling rig power head is in the third gear, and when the transmission input gear (7) drives the power input gear (3) to rotate, the drilling rig power head is in the fourth gear. When the wheel (3) rotates, the drilling rig power head is in the fourth gear, a shift box (8) is provided on the top of the power box (1), a first shift shaft, a second shift shaft (10) and a third shift shaft (11) are provided on the shift box, and a shift handle (12) is provided on the first shift shaft, the second shift shaft (10) and the third shift shaft (11), and the drilling rig power head changes gears by moving the shift handles (12) of the first shift shaft, the second shift shaft (10) and the third shift shaft (11) to corresponding gear slots (13).

2. The multi-speed variable gear core drilling rig power head according to claim 1, characterized in that: The bottom of the first shift shaft is connected to the power output gear (4) through a bracket (14), the bottom of the second shift shaft is connected to the transmission gear through a bracket (14), and the bottom of the third shift shaft is connected to the drive gear (6) through a bracket (14).

3. The multi-speed variable gear core drilling rig power head according to claim 2, characterized in that: When the drilling rig power head is in the first gear, the first gear shifting shaft and the second gear shifting shaft are respectively located at the slots (13) corresponding to the first gear, and the third gear shifting shaft is located at the slots (13) corresponding to the first, second and fourth gears. The power input gear (3) is meshed with the power output gear (4), and the mounting shaft of the power output gear (4) is transmission-connected with the motor (15), and the motor (15) is mounted above the power box (1).

4. The multi-speed variable gear core drilling rig power head according to claim 3, characterized in that: When the drilling rig power head is in the second gear, the first gear shifting shaft is located at the slot (13) corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slot (13) corresponding to the second gear, the third gear shifting shaft is located at the slot (13) corresponding to the first, second and fourth gears, the power output gear (4) is meshed with the intermediate input gear (16), the intermediate input gear (16) is coaxially arranged with the transmission output gear (5), and the transmission output gear (5) is meshed with the power input gear (3).

5. The multi-speed variable gear core drilling rig power head according to claim 4, characterized in that: When the drilling rig power head is in the third gear, the first gear shifting shaft is located at the slots (13) corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slots (13) corresponding to the third and fourth gears, the third gear shifting shaft is located at the slots (13) corresponding to the third gear, the power output gear (4) is meshed with the intermediate input gear (16), the intermediate input gear (16) is coaxially arranged with the transmission output gear (5), the transmission output gear (5) is meshed with the intermediate output gear (17), the intermediate output gear (17) is coaxially arranged with the drive gear (6), and the drive gear (6) is meshed with the power input gear (3).

6. The multi-speed variable gear core drilling rig power head according to claim 5, characterized in that: When the drilling rig power head is in the fourth gear, the first gear shifting shaft is located at the slots (13) corresponding to the second, third and fourth gears, the second gear shifting shaft is located at the slots (13) corresponding to the third and fourth gears, the third gear shifting shaft is located at the slots (13) corresponding to the first, second and fourth gears, the power output gear (4) is meshed with the intermediate input gear (16), the intermediate input gear (16) is coaxially arranged with the transmission output gear (5), the transmission output gear (5) is meshed with the intermediate output gear (17), the intermediate output gear (17) is coaxially arranged with the driving gear (6), the driving gear (6) is meshed with the driving gear (18), the driving gear (18) is coaxially arranged with the transmission input gear (7), and the transmission input gear (7) is meshed with the power input gear (3).

7. The multi-speed variable gear core drilling rig power head according to claim 1, characterized in that: The invention also comprises a gear clamping assembly, wherein the gear clamping assembly comprises a baffle plate (19) abutting against a gear shift handle (12), the baffle plate (19) being connected to a fixing plate (22) via a plurality of telescopic rods (20), the fixing plate (22) being fixedly installed in a power box (1), a spring (21) being sleeved on the outer periphery of the telescopic rod (20), one end of the spring (21) being connected to the baffle plate (19), and the other end being connected to the fixing plate (22).

8. The multi-speed variable gear core drilling rig power head according to claim 1, characterized in that: A locking assembly is provided on the inner wall of the bottom of the shift box, and the locking assembly comprises a fixing seat (23), a transverse sliding groove (24) is provided in the fixing seat (23), the first shift shaft, the second shift shaft (10) and the third shift shaft (11) all longitudinally pass through the fixing seat (23), a long locking rod (25) is provided between the first shift shaft and the second shift shaft (10), a short locking rod (26) is provided between the second shift shaft (10) and the third shift shaft (11), balls (27) are provided at both ends of the long locking rod (25) and the short locking rod (26), and corresponding locking grooves (28) are provided on the first shift shaft, the second shift shaft (10) and the third shift shaft (11).

9. The multi-speed variable gear core drilling rig power head according to claim 1, characterized in that: The bottom of the power box (1) is provided with guide columns (29) respectively connected in a sliding manner to the first shift shaft, the second shift shaft (10) and the third shift shaft (11).

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