Drilling machine power head capable of locking up and down sliding brake main shaft and internally provided with lubricating system

Abstract

The utility model belongs to the technical field of drilling machine equipment, and particularly relates to a drilling machine power head with an up-and-down sliding brake main shaft locking internal lubricating system, which comprises a power box, a longitudinally extending main shaft is arranged on the power box, a power input gear is mounted on the main shaft in the power box, a brake disc is arranged below the power input gear, and the brake disc is connected with the power box. A brake disc is arranged on the power head, a power input gear is arranged on the brake disc, a brake block is arranged on the side portion of the power input gear, a tooth key meshed with the brake block is arranged on the side, close to the power input gear, of the brake block, and the brake disc and the brake block are provided with a driving mechanism for driving the brake disc and the brake block to move in the vertical direction. The brake block is in close contact with the bottom of the power input gear, the rotating speed of the power input gear is reduced through friction force, and when the rotating speed of the power input gear is reduced to a certain value, the brake block descends, the brake block is meshed with the power input gear, the power output gear is locked, and brake slipping can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a drilling power head with an up-and-down sliding brake spindle locking and a lubrication system. 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 dominant model of tunnel drilling rigs in many countries. However, the existing power head of the drilling rig has a complex brake structure or slow brake speed in actual operation, which affects the normal progress of drilling work. Utility Model Content

[0003] In order to overcome the above defects in the prior art, the utility model provides a drilling rig power head with an up and down sliding brake spindle locking and an internal lubrication system.

[0004] A drilling rig power head with an up and down sliding brake spindle locking and an internal lubrication system, comprising a power box, characterized in that the power box is provided with a longitudinally extending spindle, a power input gear is installed on the spindle in the power box, a brake disc is provided below the power input gear, a brake block is provided on the side of the power input gear, a tooth key meshing with the power input gear is provided on the side of the brake block close to the power input gear, and the brake disc and the brake block are provided with a driving mechanism for driving them to move in the vertical direction.

[0005] Furthermore, the power input gear is meshed with a transmission gear, the transmission gear is coaxially arranged with an intermediate gear, the transmission gear is meshed with a drive gear, and the drive gear is connected to an output end of a hydraulic motor.

[0006] Furthermore, the driving mechanism includes a brake cylinder, which is installed on the top of the power box, and a piston rod of the brake cylinder is connected to the brake disc.

[0007] Furthermore, the driving mechanism also includes a lifting screw rotatably mounted on the inner wall of the power box, the lifting screw is cooperatively connected with the brake block, the lifting screw is a hollow structure, and its central axis coincides with the central axis of the piston rod.

[0008] Furthermore, a guide block is fixedly mounted on the inner wall of the power box, and the brake disc, brake block and guide block are slidably connected.

[0009] Furthermore, a first brake gear is sleeved on the lifting screw rod, the first brake gear is meshed with a second brake gear, and the second brake gear is connected to an output end of a brake motor.

[0010] Furthermore, a bracket is provided on the bottom inner wall of the power box, a lubrication gear is installed on the bracket, the lubrication gear is meshed with the power input gear, and a lubrication oil pump is installed on the bracket, and an output end of the lubrication oil pump is connected to the lubrication gear.

[0011] Furthermore, a driving motor is installed on the power box, an output end of the driving motor is connected to a transmission shaft, and a lifting gear is slidably installed on the transmission shaft.

[0012] Furthermore, a lifting cylinder is provided on the power box, an output end of the lifting cylinder is connected to a lifting frame, and the lifting frame drives the lifting gear to move in a vertical direction.

[0013] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is: in the utility model, when the power head needs to brake, the power mechanism that drives the main shaft to rotate stops working, the brake disc moves upward and is in close contact with the bottom of the power input gear, and the rotation speed of the power input gear is reduced by the friction between each other. When the rotation speed of the power input gear is reduced to a certain value, the brake block descends, the brake block meshes with the power input gear, the power output gear is locked, and the brake can be prevented from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the power head of the drilling rig of 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 schematic diagram of the working structure of the brake disc and brake block in the utility model;

[0017] Figure 4 It is a partial structural schematic diagram of the drilling rig power head of the utility model.

[0018] In the figure, 1, power box, 2, main shaft, 3, power input gear, 4, brake disc, 5, brake block, 6, transmission gear, 7, intermediate gear, 8, driving gear, 9, hydraulic motor, 10, brake cylinder, 11, piston rod, 12, lifting screw, 13, guide block, 14, first brake gear, 15, second brake gear, 16, brake motor, 17, bracket, 18, lubrication gear, 19, lubricating oil pump, 20, driving motor, 21, transmission shaft, 22, lifting gear, 23, lifting frame, 24, lifting cylinder. DETAILED DESCRIPTION

[0019] 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.

[0020] according to Figure 1-4 As shown, a drilling rig power head with an internal lubrication system and an up and down sliding brake main shaft 2 is provided, comprising a power box 1, characterized in that 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, a brake disc 4 is provided below the power input gear 3, a brake block 5 is provided on the side of the power input gear 3, a tooth key meshing with the power input gear 3 is provided on the side of the brake block 5 close to the power input gear 3, and the brake disc 4 and the brake block 5 are provided with a driving mechanism for driving them to move in the vertical direction.

[0021] In the above specific technical scheme, when the power head needs to brake, the power mechanism driving the main shaft 2 to rotate stops working, the brake disc 4 moves upward and is in close contact with the bottom of the power input gear 3, and the rotation speed of the power input gear 3 is reduced by the friction between each other. When the rotation speed of the power input gear 3 is reduced to a certain value, the brake block 5 descends, and the brake block 5 engages with the power input gear 3 to lock the power output gear and prevent the brake from slipping.

[0022] The power input gear 3 is meshed with the transmission gear 6, the transmission gear 6 is coaxially arranged with the intermediate gear 7, the intermediate gear 7 is meshed with the drive gear 8, and the drive gear 8 is connected to the output end of the hydraulic motor 9. The hydraulic motor 9 is started to drive the drive gear 8 to rotate. The drive gear 8 is connected to the power output gear through the intermediate gear 7 and the transmission gear 6, thereby realizing the rotation of the power input gear 3.

[0023] The driving mechanism comprises a brake cylinder 10 , which is mounted on the top of the power box 1 , and a piston rod 11 of the brake cylinder 10 is connected to the brake disc 4 .

[0024] The driving mechanism also includes a lifting screw 12 rotatably mounted on the inner wall of the power box 1 , the lifting screw 12 is cooperatively connected with the brake block 5 , and the lifting screw 12 is a hollow structure, and its central axis coincides with the central axis of the piston rod 11 .

[0025] A guide block 13 is fixedly mounted on the inner wall of the power box 1 , and the brake disc 4 and the brake block 5 are slidably connected to the guide block 13 .

[0026] The lifting screw rod 12 is sleeved with a first brake gear 14 , the first brake gear 14 is meshed with a second brake gear 15 , and the second brake gear 15 is connected to an output end of a brake motor 16 .

[0027] In the above specific technical scheme, when braking is needed, the brake cylinder 10 is started to drive the brake disc 4 to move upward, and the speed of the power input gear 3 is reduced by the brake disc 4. The preferred brake disc 4 can be an arc-shaped block structure or a circular ring structure. When the rotation speed of the power input gear 3 is reduced to a certain value, the brake motor 16 is started to drive the second brake gear 15 to rotate, and the second brake gear 15 is meshed with the first brake gear 14, thereby driving the lifting screw 12 to rotate, and the brake block 5 moves downward along the guide direction of the guide block 13 and meshes with the power input gear 3, thereby locking the power input gear 3 to prevent the brake from slipping.

[0028] A bracket 17 is provided on the inner wall of the bottom of the power box 1, and a lubrication gear 18 is installed on the bracket 17. The lubrication gear 18 is meshed with the power input gear 3. A lubrication oil pump 19 is installed on the bracket 17, and its output end is connected to the lubrication gear 18. The lubrication oil pump 19 can be driven to work during the rotation of the power input gear 3, thereby lubricating the bearings in the power box 1.

[0029] A driving motor 20 is installed on the power box 1 , and an output end of the driving motor 20 is connected to a transmission shaft 21 , and a lifting gear 22 is slidably installed on the transmission shaft 21 .

[0030] The power box 1 is provided with a lifting cylinder 24 , the output end of the lifting cylinder 24 is connected to a lifting frame 23 , and the lifting frame 23 drives the lifting gear 22 to move in the vertical direction.

[0031] In the above specific technical solution, when it is necessary to change the gear position to work, the lifting cylinder 24 is driven, and the lifting cylinder 24 drives the lifting gear 22 to move downward through the lifting frame 23 and engage with the power input gear 3, and the driving motor 20 is started to drive the transmission shaft 21 to rotate, thereby rotating the lifting gear 22. By increasing the gear position of the power head, the applicability of the power head in construction in different environments is increased.

[0032] 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 drilling rig power head with a vertically sliding brake spindle locking and a lubrication system, comprising a power box (1), characterized in that: 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), a brake disc (4) is provided below the power input gear (3), a brake block (5) is provided on the side of the power input gear (3), a tooth key meshing with the power input gear (3) is provided on the side of the brake block (5) close to the power input gear (3), and a driving mechanism for driving them to move in a vertical direction is provided on the brake disc (4) and the brake block (5).

2. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 1 is characterized in that: The power input gear (3) is meshed with a transmission gear (6), the transmission gear (6) is coaxially arranged with an intermediate gear (7), the transmission gear (6) is meshed with a drive gear (8), and the drive gear (8) is connected to an output end of a hydraulic motor (9).

3. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 2 is characterized in that: The driving mechanism comprises a brake cylinder (10), wherein the brake cylinder (10) is mounted on the top of the power box (1), and a piston rod (11) of the brake cylinder (10) is connected to a brake disc (4).

4. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 1 is characterized in that: The driving mechanism also includes a lifting screw (12) rotatably mounted on the inner wall of the power box (1), the lifting screw (12) being cooperatively connected with the brake block (5), the lifting screw (12) being a hollow structure, and its central axis coincides with the central axis of the piston rod (11).

5. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 2 is characterized in that: A guide block (13) is fixedly mounted on the inner wall of the power box (1), and the brake disc (4) and the brake block (5) are slidably connected with the guide block (13).

6. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 4, characterized in that: The lifting screw rod (12) is sleeved with a first brake gear (14), the first brake gear (14) is meshed with a second brake gear (15), and the second brake gear (15) is connected to the output end of a brake motor (16).

7. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 1, characterized in that: A bracket (17) is provided on the inner wall of the bottom of the power box (1), a lubrication gear (18) is mounted on the bracket (17), the lubrication gear (18) is meshed with the power input gear (3), and a lubrication oil pump (19) is mounted on the bracket (17), and an output end of the lubrication oil pump (19) is connected to the lubrication gear (18).

8. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 2, characterized in that: A driving motor (20) is installed on the power box (1), the output end of the driving motor (20) is connected to a transmission shaft (21), and a lifting gear (22) is slidably installed on the transmission shaft (21).

9. The drilling rig power head with an upper and lower sliding brake spindle locking and internal lubrication system according to claim 8, characterized in that: The power box (1) is provided with a lifting cylinder (24), the output end of the lifting cylinder (24) is connected to a lifting frame (23), and the lifting frame (23) drives the lifting gear (22) to move in a vertical direction.

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