Connecting device for power head gearbox and chuck of hydraulic drilling rig
By designing the connection device between the power head gear box and the chuck of the hydraulic drill rig, the multi-sided limit connection between the oil distribution sleeve and the gear box is achieved by using arc-shaped blocks, springs, half-ring sleeves and other structures, the problems of hydraulic system leakage and output efficiency reduction caused by the wear of the oil distribution sleeve are solved, and higher sealing and wear resistance are achieved.
Patent Information
- Application Number
- CN202421510043.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-28
AI Technical Summary
As working time increases, the wear of the inner sleeve of the oil distribution sleeve causes the gap between it and the spindle to gradually increase, the leakage of the hydraulic system increases, and the output efficiency of the drilling rig is reduced.
A connection device between the power head gear box and the chuck of the hydraulic drill rig was designed. By setting up structures such as arc blocks, springs, and semi-ring sleeves, convenient multi-sided limit connection between the oil distribution sleeve and the gear box is achieved, reducing the shaking and wear of the oil distribution sleeve, and improving sealing and wear resistance through structures such as wear-resistant layer, waterproof layer, and sealing layer.
It effectively reduces wear between the oil distribution sleeve and the gear box, reduces the leakage risk of the hydraulic system, and improves the output efficiency of the drilling rig.
Smart Images
Figure CN222596713U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling rig connection devices, in particular to a connection device between a gear box and a chuck of a hydraulic drilling rig power head. Background Art
[0002] For the fully hydraulic drilling rig power head, when the hydraulic chuck is working, the oil sleeve sends high-pressure oil to the chuck through the oil hole on the main shaft to clamp and loosen the drill rod. The oil sleeve must rotate at a relatively high speed with the main shaft and realize pressure-maintaining oil distribution. Therefore, the processing and assembly requirements of the oil sleeve are relatively high.
[0003] The above device has the following defects: as the working time increases, the inner sleeve of the oil distribution sleeve wears, causing the gap between it and the main shaft to gradually increase, the leakage of the hydraulic system increases, and the output efficiency of the drilling rig decreases. Therefore, a connecting device between the gear box and the chuck of the hydraulic drilling rig power head is proposed to solve the above problems. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a connecting device between the gear box and the chuck of a hydraulic drilling rig power head, aiming to improve the problem in the prior art that as the working time increases, the inner sleeve of the oil distribution sleeve wears out, causing the gap between it and the main shaft to gradually increase, the leakage of the hydraulic system increases, and the output efficiency of the drilling rig decreases.
[0005] The cam is an axially-coupled device for activating the oil pump, and the cam is connected to the oil pump sleeve by the cam, and the cam is connected to the oil pump sleeve by the cam.
[0006] As a further description of the above technical solution: the auxiliary mechanism includes a wear-resistant layer, an outer wall on one side of the wear-resistant layer is fixedly connected to a waterproof layer, and an outer wall on one side of the waterproof layer away from the wear-resistant layer is fixedly connected to a sealing layer.
[0007] As a further description of the above technical solution: there are two sliding plates in total, and the two sliding plates are respectively fixedly connected to the two ends of the spring, and are arc-shaped blocks that penetrate the side outer wall of the oil distribution sleeve.
[0008] As a further description of the above technical solution: the inner walls on both sides of the connecting plate are provided with limiting openings, the arc block is clamped on the inner walls on both sides of the limiting openings, the semi-annular sleeve is slidably connected to the inner walls on both sides of the oil distribution sleeve, and the positioning block is slidably connected to the inner walls on both sides of the positioning opening.
[0009] As a further description of the above technical solution: the inner walls on both sides of the limiting opening are slidably connected with pressing plates, and the semi-ring sleeve is slidably connected to the inner walls on both sides of the ring sleeve groove.
[0010] As a further description of the above technical solution: an outer wall on one side of the pressing plate is provided with an indication mark.
[0011] As a further description of the above technical solution: the thickness of the wear-resistant layer is four millimeters, and the thickness of the waterproof layer is three millimeters.
[0012] As a further description of the above technical solution: the thickness of the sealing layer is four millimeters.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, by setting arc blocks, springs, semi-ring sleeves and other structures, a convenient multi-faceted limit clamping connection is performed between the oil distribution sleeve and the gear box, which reduces the wear caused by the left and right shaking of the distribution sleeve, improves the problem that as the working time increases, the oil distribution sleeve shakes and causes the inner sleeve of the connection to wear, resulting in the gap between it and the main shaft gradually increasing, the leakage of the hydraulic system increases, and the output efficiency of the drilling rig decreases.
[0015] 2. In the utility model, by setting structures such as a wear-resistant layer, a waterproof layer, and a sealing layer, the inner wall material of the connecting plate has higher wear resistance and better performance, and the chloroprene rubber material makes the connecting plate have high tensile strength, large elasticity and elongation, good adhesion, water resistance and weather resistance, thereby improving the sealing and wear resistance between the oil distribution sleeve and the connecting plate and reducing leakage problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall front view of a connecting device between a gear box and a chuck of a hydraulic drilling rig power head proposed by the utility model;
[0017] Figure 2 It is a schematic overall side view of a connecting device between a gear box and a chuck of a hydraulic drilling rig power head proposed by the utility model;
[0018] Figure 3 It is a cross-sectional schematic diagram of a connecting device between a gear box and a chuck of a hydraulic drilling rig power head proposed by the utility model;
[0019] Figure 4The utility model is a schematic diagram of an auxiliary mechanism of a connecting device between a gear box and a chuck of a hydraulic drilling rig power head.
[0020] Legend:
[0021] 1. Chuck; 2. Clamping claw; 3. Oil distribution sleeve; 41. Connecting plate; 42. Gear box; 5. Connecting mechanism; 51. Sliding plate; 52. Arc block; 53. Spring; 54. Semi-ring; 55. Positioning block; 56. Positioning port; 57. Ring groove; 58. Limiting port; 59. Pressing plate; 6. Auxiliary mechanism; 61. Wear-resistant layer; 62. Waterproof layer; 63. Sealing layer. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Reference Figure 1-Figure 3 The utility model provides an embodiment: a connecting device for a gear box and a chuck of a hydraulic drilling rig power head, comprising a chuck 1, a claw 2 is fixedly connected to an outer wall of one side of the chuck 1, an oil sleeve 3 is fixedly connected to an outer wall of the chuck 1 away from the claw 2, and a connecting plate 41 is clamped on the side outer wall of the oil sleeve 3. The connecting plate 41 is provided so that the oil sleeve 3 and the gear box 42 can be conveniently connected and disassembled and separated, thereby improving the wear between the inner sleeve of the oil sleeve 3 and the gear 42 as the working time increases, causing the gap between the oil sleeve 3 and the main shaft to gradually increase, the leakage of the hydraulic system to increase, and the output efficiency of the drilling rig to decrease. The outer wall of the connecting plate 41 away from the oil sleeve 3 is fixedly connected to the gear box 42, a connecting mechanism 5 is provided on the oil sleeve 3, and an auxiliary mechanism 6 is provided on the connecting mechanism 5. The connecting mechanism 5 includes a sliding plate 51, which is slidably connected to the inner walls on both sides of the oil distribution sleeve 3. An outer wall of one side of the sliding plate 51 is fixedly connected with an arc block 52. The arc block 52 is arranged to be clamped and fixed with a limit opening 58 to prevent the connection disk 41 from being loosened and falling off due to external influences when the oil distribution sleeve 3 is plugged in. A spring 53 is fixedly connected to the outer wall of one side of the sliding plate 51. A semi-annular sleeve 54 is fixedly connected to the side outer wall of the arc block 52. Positioning blocks 55 are fixedly connected to the outer walls of both sides of the oil distribution sleeve 3. A positioning opening 56 is provided on the outer wall of one side of the connection disk 41 close to the positioning block 55. The positioning opening 56 is arranged to cooperate with the positioning block 55 to facilitate guidance during blind plugging and facilitate docking and fixing by personnel. An annular sleeve groove 57 is provided on the side inner wall of the connection disk 41.
[0024] Reference Figure 2-Figure 3There are two sliding plates 51, and the two sliding plates 51 are fixedly connected to the two ends of the spring 53 respectively. The spring 53 is set to generate a continuous thrust on the two sliding plates 51, and the arc block 52 passes through the side outer wall of the oil distribution sleeve 3. The inner walls on both sides of the connecting plate 41 are provided with limited openings 58. The arc block 52 is clamped on the inner walls on both sides of the limited opening 58. The semi-annular sleeve 54 is slidably connected to the inner walls on both sides of the oil distribution sleeve 3, and the positioning block 55 is slidably connected to the inner walls on both sides of the positioning opening 56. The inner walls on both sides of the limited opening 58 are slidably connected. There is a pressing plate 59, which is set to squeeze the arc block 52 out of the limiting opening 58, so that the oil distribution sleeve 3 can be easily separated from the connecting disk 41, and the semi-annular sleeve 54 is slidably connected to the inner walls on both sides of the annular sleeve groove 57. The semi-annular sleeve 54 and the annular sleeve groove 57 cooperate with each other to limit the connecting disk 41 and the oil distribution sleeve 3 on multiple sides, thereby reducing the left and right shaking and friction problems caused by the connection between the oil distribution sleeve 3 and the connecting disk 41. An indicator mark is provided on the outer wall of one side of the pressing plate 59, and the operation method is prompted by setting the indicator mark.
[0025] Reference Figure 3-Figure 4 The auxiliary mechanism 6 includes a wear-resistant layer 61. The material of the wear-resistant layer 61 is set to be nano wear-resistant coating KN1000. The application of nanotechnology makes the coating have higher wear resistance and better performance. A waterproof layer 62 is fixedly connected to the outer wall of one side of the wear-resistant layer 61. The material of the waterproof layer 62 is set to be chloroprene rubber, which has the characteristics of high tensile strength, large elasticity and elongation, good adhesion, water resistance and weather resistance. A sealing layer 63 is fixedly connected to the outer wall of the waterproof layer 62 away from the wear-resistant layer 61. The thickness of the wear-resistant layer 61 is four millimeters, the thickness of the waterproof layer 62 is three millimeters, and the thickness of the sealing layer 63 is four millimeters. The material of the sealing layer 63 is a polyurethane sealing material. The material has excellent elasticity and wear resistance, can withstand higher pressure and temperature, so that the oil distribution sleeve 3 is connected to the connecting plate 41. Improve the sealing performance to a certain extent.
[0026] Working principle: when assembly is required, the positioning block 55 is aligned with the positioning port 56 to insert the oil distribution sleeve 3 into the connecting disk 41. At the same time, during the insertion, the arc block 52 is subjected to the movement and compression spring 53 generated by the outer surface of the connecting disk 41. The movement of the arc block 52 drives the semi-annular sleeve 54 to move. After the oil distribution sleeve 3 is inserted, the arc block 52 is snapped into the limiting port 58. At the same time, the semi-annular sleeve 54 on the arc block 52 is snapped into the annular sleeve groove 57 for multi-faceted limiting to complete the assembly. By pressing the pressing plate 59 to squeeze the arc block 52 out of the limiting port 58, the oil distribution sleeve 3 and the connecting disk 41 can be easily separated for manual maintenance.
[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A connecting device between a gear box and a chuck of a hydraulic drilling rig power head, comprising a chuck (1), characterized in that: A claw (2) is fixedly connected to an outer wall of one side of the chuck (1); an oil distribution sleeve (3) is fixedly connected to an outer wall of the chuck (1) away from the claw (2); a connecting plate (41) is clamped to an outer wall of a side of the oil distribution sleeve (3); a gear box (42) is fixedly connected to an outer wall of a side of the connecting plate (41) away from the oil distribution sleeve (3); a connecting mechanism (5) is provided on the oil distribution sleeve (3); an auxiliary mechanism (6) is provided on the connecting mechanism (5); the connecting mechanism (5) comprises a sliding plate (51); the sliding plate (51) Slidingly connected to the inner walls on both sides of the oil distribution sleeve (3), an outer wall on one side of the sliding plate (51) is fixedly connected to an arc block (52), an outer wall on one side of the sliding plate (51) is fixedly connected to a spring (53), a side outer wall of the arc block (52) is fixedly connected to a semi-ring sleeve (54), and the outer walls on both sides of the oil distribution sleeve (3) are fixedly connected to positioning blocks (55), a positioning opening (56) is provided on the outer wall on one side of the connecting plate (41) close to the positioning block (55), and a ring sleeve groove (57) is provided on the inner wall on the side of the connecting plate (41).
2. The connecting device of the gear box and the chuck of the hydraulic drilling rig power head according to claim 1, characterized in that: The auxiliary mechanism (6) comprises a wear-resistant layer (61), one side outer wall of the wear-resistant layer (61) is fixedly connected to a waterproof layer (62), and the side outer wall of the waterproof layer (62) away from the wear-resistant layer (61) is fixedly connected to a sealing layer (63).
3. The connecting device of the gear box and the chuck of the hydraulic drilling rig power head according to claim 1, characterized in that: There are two sliding plates (51) in total. The two sliding plates (51) are fixedly connected to the two ends of the spring (53) respectively, and the arc block (52) penetrates the side outer wall of the oil distribution sleeve (3).
4. The connecting device of the gear box and the chuck of the hydraulic drilling rig power head according to claim 1, characterized in that: The inner walls on both sides of the connection plate (41) are provided with limiting openings (58), the arc-shaped block (52) is clamped on the inner walls on both sides of the limiting opening (58), the semi-annular sleeve (54) is slidably connected to the inner walls on both sides of the oil distribution sleeve (3), and the positioning block (55) is slidably connected to the inner walls on both sides of the positioning opening (56).
5. The connecting device of the gear box and the chuck of the hydraulic drilling rig power head according to claim 4, characterized in that: The inner walls on both sides of the limiting opening (58) are slidably connected to a pressing plate (59), and the semi-ring sleeve (54) is slidably connected to the inner walls on both sides of the ring sleeve groove (57).
6. The connecting device between the gear box and the chuck of the hydraulic drilling rig power head according to claim 5, characterized in that: An indication mark is provided on one outer wall of the pressing plate (59).
7. The connecting device between the gear box and the chuck of a hydraulic drilling rig power head according to claim 2, characterized in that: The wear-resistant layer (61) has a thickness of four millimeters, and the waterproof layer (62) has a thickness of three millimeters.
8. The connecting device between the gear box and the chuck of a hydraulic drilling rig power head according to claim 2, characterized in that: The thickness of the sealing layer (63) is four millimeters.