Compact well drilling and workover winch with automatic bit feeding device

Abstract

The compact well drilling and workover winch with the automatic bit feeding device comprises a main motor, and the main motor is connected with an input shaft of a reduction gearbox through a coupler a; an output shaft of the reduction gearbox is connected with the left end of the roller shaft assembly through a coupler b; the right end of the roller shaft assembly is connected with the tooth clutch through a key b; and the tooth clutch is connected with the automatic bit feeding device assembly through a chain. The roller shaft assembly is provided with hydraulic disc type brake devices which are arranged diagonally on the two sides of the roller shaft assembly; the reduction gearbox is provided with an independent engine oil lubricating device. The reduction gearbox adopts two-gear gear transmission and can output a high gear and a low gear, and meanwhile, an automatic drill feeding device is arranged, so that working conditions required by well drilling and repairing can be completely met. The winch is compact in structure, easy to install, convenient to transport and complete in function, working efficiency of the winch is effectively improved, and drilling and workover operation time is shortened.

Description

Technical Field

[0001] The invention patent belongs to the technical field of oil drilling equipment and relates to an oil drilling and repairing winch. Background Art

[0002] The truck-mounted drilling and workover rig has strict restrictions on the width of the winch due to transportation requirements. The previous drilling and workover winch was large in size, complex in structure, and inconvenient to maintain. In addition, due to the limited transportation size, the winch reduction box only has one speed gear, and the winch has low working efficiency. Especially in the Middle East, there is a requirement for automatic drilling and workover winch delivery, and the previous drilling and workover winch can no longer meet the use requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a compact well drilling and repairing winch with an automatic drill feeding device, which has a two-speed gear reduction box and is characterized in improving the power utilization rate of the winch.

[0004] The technical solution adopted by the present invention is a compact well drilling and repairing winch with an automatic drill feeding device, comprising a main motor, a coupling a, a reduction box, an oil lubrication device, a coupling b, a hydraulic disc brake device, a drum shaft assembly, a drum shaft, a left connecting hub, a drum body, a right connecting hub, a left brake connecting disc, a right brake connecting disc, a left bearing seat, a right bearing seat, a left bearing, a right bearing, a key a, a key b, a gear clutch, a chain, an automatic drill feeding device assembly, a chain box, the main motor is connected to the input shaft of the reduction box through the coupling a; the output shaft of the reduction box is connected to the left end of the drum shaft assembly through the coupling b; the right end of the drum shaft assembly is connected to the gear clutch through the key b; the gear clutch is connected to the automatic drill feeding device assembly through the chain;

[0005] The drum shaft assembly is equipped with a hydraulic disc brake device; the reduction box is equipped with an oil lubrication device.

[0006] The present invention is also characterized in that:

[0007] The reduction gearbox comprises an input shaft, an intermediate shaft and an output shaft, and the input shaft, the intermediate shaft and the output shaft are arranged horizontally and in the same plane;

[0008] Gear a, gear b and a shift mechanism are installed on the input shaft; the input shaft is connected to coupling a; the shift mechanism is placed between gear a and gear b;

[0009] Gears c, d and e are mounted on the intermediate shaft;

[0010] A gear f is installed on the output shaft; the output shaft is connected to the coupling b.

[0011] Gear a meshes with gear c; gear b meshes with gear d; gear e meshes with gear f;

[0012] The gear a is in the engaged state and the gear b is in the disengaged state through the shifting mechanism;

[0013] The gear b is in the engaged state and the gear a is in the disengaged state through the shifting mechanism.

[0014] The drum shaft assembly includes a drum shaft, a left connecting hub, a drum body, a right connecting hub, a left brake connecting disc, a right brake connecting disc, a left bearing seat, a right bearing seat, a left bearing, a right bearing, a key a, and a key b;

[0015] The upper sleeve of the drum shaft is provided with a drum body, a left connecting hub and a right connecting hub; the drum body is located between the left connecting hub and the right connecting hub, and the drum body is welded to the left connecting hub and the right connecting hub respectively; the drum shaft is connected to the left connecting hub by key a;

[0016] The left connecting hub is connected to the left brake connecting disc by bolts; the right connecting hub is connected to the right brake connecting disc by bolts; the left brake connecting disc and the right brake connecting disc are respectively provided with hydraulic disc brake devices; two sets of hydraulic disc brake devices are arranged diagonally on both sides of the winch drum shaft assembly;

[0017] The left bearing seat is installed at the left end of the drum shaft through the left bearing; the right bearing seat is installed at the right end of the drum shaft through the right bearing;

[0018] The left end of the drum shaft is connected to the output shaft through coupling b;

[0019] The right end of the drum shaft is connected to the tooth clutch through key b.

[0020] The gear clutch includes an outer gear sleeve I, an outer gear sleeve II, an inner gear sleeve, a bearing assembly, and a shift fork device;

[0021] The bearing assembly is installed at the right end of the drum shaft, and the outer gear sleeve II is installed at the right end of the drum shaft through key b, and the outer gear sleeve II is located on the right side of the bearing assembly; the gear of the outer gear sleeve II faces the left side of the drum shaft;

[0022] The outer gear sleeve I is installed on the bearing assembly, with the sprocket facing the left side of the drum shaft and the gear facing the right side of the drum shaft;

[0023] The inner gear sleeve is installed on the outer gear sleeve I and the outer gear sleeve II through the meshing mode of the inner and outer gear sleeves of the gears, and the inner gear sleeve can be ensured to slide left and right on the outer gear sleeve I and the outer gear sleeve II through the fork device, so as to realize the disengagement and engagement of the outer gear sleeve I and the outer gear sleeve II.

[0024] The tooth clutch is connected to the automatic drill feeding device assembly through a chain;

[0025] The automatic drill feeding device assembly comprises an automatic drill feeding device, a small sprocket and a key C; the small sprocket is connected to the output shaft end of the automatic drill feeding device through the key C.

[0026] The outer gear sleeve I, the outer gear sleeve II, the inner gear sleeve, the bearing assembly, the chain and the small sprocket are all arranged inside the chain box.

[0027] The beneficial effects of the present invention are:

[0028] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention adopts a two-speed gear reduction box, thereby improving the power utilization rate of the winch and effectively reducing the lifting time of the well drilling and repairing operation.

[0029] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention is provided with an automatic drill feeding device. When a main motor fails, the automatic drill feeding device can realize an emergency working condition, thereby improving the working efficiency of the well drilling and repairing.

[0030] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention has a hydraulic disc brake device arranged diagonally on both sides, thereby effectively saving installation space.

[0031] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention adopts a gear clutch to control the engagement or disengagement of the automatic drill feeding device, has a compact structure, requires a small installation space, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a compact well drilling and workover winch with an automatic drill feeding device according to the present invention;

[0033] Figure 2 A schematic structural diagram of a drum shaft assembly in a compact well drilling and workover winch with an automatic drill feeding device according to the present invention;

[0034] Figure 3 A schematic diagram of the structure of a reduction gearbox in a compact well drilling and workover winch with an automatic drill feeding device according to the present invention;

[0035] Figure 4 A schematic diagram of the structure of the tooth clutch portion of the compact well drilling and workover drawworks with an automatic drill feeding device of the present invention.

[0036] Figure 5 A schematic structural diagram of an automatic drill bit feeding device assembly of a compact well drilling and workover winch with an automatic drill bit feeding device according to the present invention.

[0037] Among them, 1. Main motor, 2. Coupling a, 3. Reducer, 3-1. Input shaft, 3-1-1. Gear a, 3-1-2. Gear b, 3-1-3. Shift mechanism, 3-2. Intermediate shaft, 3-2-1. Gear c, 3-2-2. Gear d, 3-2-3 Gear e, 3-3. Output shaft, 3-3-1. Gear f, 4. Oil lubrication device, 5. Coupling b, 6. Hydraulic disc brake device, 7. Drum shaft assembly, 7-1. Drum shaft, 7-2. Left connecting hub, 7-3. Drum body, 7-4. Right Connecting hub, 7-5. Left brake connecting disc, 7-6. Right brake connecting disc, 7-7. Left bearing seat, 7-8. Right bearing seat, 7-9. Left bearing, 7-10. Right bearing, 7-11. Key a, 7-12. Key b, 8. Tooth clutch, 8-1. External gear sleeve I, 8-2. External gear sleeve II, 8-3. Internal gear sleeve, 8-4. Bearing assembly, 8-5. Fork device, 9. Chain, 10. Automatic drill feeding device assembly, 10-1. Automatic drill feeding device, 10-2. Small sprocket, 10-3. Key c, 11. Chain box. DETAILED DESCRIPTION

[0038] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention is

[0040] like Figure 1 As shown, the main motor 1 of the winch is connected to the input shaft of the reduction box 3 through the coupling a2, the output shaft of the reduction box 3 is connected to the left end of the drum shaft assembly 7 through the coupling b5, and the right end of the drum shaft assembly 7 is equipped with a gear clutch 8, which is connected to the automatic drill feeding device assembly 10 through a chain 9;

[0041] The drum shaft assembly 7 is fixed on the transport vehicle through the left and right bearing seats.

[0042] The drum shaft assembly 7 is equipped with a hydraulic disc brake device 6;

[0043] The reduction box 3 is equipped with an oil lubrication device 4.

[0044] The hydraulic disc brake devices 9 are arranged diagonally on both ends of the winch drum shaft assembly 7.

[0045] The outer gear sleeve I 8 - 1 , the outer gear sleeve II 8 - 2 , the inner gear sleeve 8 - 3 , the bearing assembly 8 - 4 , the chain 9 and the small sprocket 10 - 2 are all arranged inside the chain box 11 .

[0046] like Figure 2As shown, the roller shaft assembly 7 includes a roller shaft 7-1, a left connecting hub 7-2, a roller body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a 7-11, and a key b 7-12.

[0047] The drum body 7-3 is fixedly connected to the left connecting hub 7-2 and the right connecting hub 7-4 respectively, and is connected to the drum shaft 7-1 through a key a 7-11. The left bearing seat 7-7 is installed on the left end of the drum shaft 7-1 through a left bearing 7-9, and the right bearing seat 7-8 is installed on the right end of the drum shaft 7-1 through a right bearing 7-10.

[0048] The left brake connecting disc 7-5 is connected to the left connecting hub 7-2 by bolts, and the right brake connecting disc 7-6 is connected to the right connecting hub 7-4 by bolts. The left brake connecting disc 7-5 and the right brake connecting disc 7-6 are respectively equipped with hydraulic disc brake devices 9;

[0049] The bearing assembly 8-4 and the outer gear sleeve II 8-2 are installed at the right end of the drum shaft 7-1, and the outer gear sleeve II 8-2 is located on the right side of the bearing assembly 8-4. The outer gear sleeve I 8-1 is installed on the bearing assembly 8-4.

[0050] like Figure 3 As shown, the reduction box 3 includes an input shaft 3-1, an intermediate shaft 3-2 and an output shaft 3-3; the input shaft 3-1, the intermediate shaft 3-2 and the output shaft 3-3 are arranged horizontally in the same plane;

[0051] The input shaft 3-1 is equipped with a gear a3-1-1, a gear b3-1-2 and a shift mechanism 3-1-3;

[0052] The intermediate shaft 3-2 is equipped with gear c3-2-1, gear d3-2-2 and gear e3-2-3;

[0053] The output shaft 3-3 is provided with a gear f3-3-1;

[0054] The coupling a2 is connected to the input shaft 3-1; the coupling b5 is connected to the output shaft 3-3.

[0055] The gear A3-1-1 meshes with the gear C3-2-1 through the shift mechanism 3-1-3; the gear B3-1-2 meshes with the gear D3-2-2 through the shift mechanism 3-1-3; the gear E3-2-3 meshes with the gear F3-3-1.

[0056] When gear a3-1-1 and gear c3-2-1 are working, gear b3-1-2 and gear d3-2-2 are not working.

[0057] When gear b3-1-2 and gear d3-2-2 are working, gear a3-1-1 and gear c3-2-1 are not working.

[0058] like Figure 4 As shown, the inner gear sleeve 8-3 is installed on the outer gear sleeve I 8-1 and the outer gear sleeve II 8-2, and the inner gear sleeve 8-3 is respectively engaged with the outer gear sleeve I 8-1 and the outer gear sleeve II 8-2 through straight teeth. The inner gear sleeve 8-3 can slide on the outer gear sleeve I 8-1 and the outer gear sleeve II 8-2 along the axial direction through the fork device 8-5 to achieve the engagement and disengagement of the clutch.

[0059] like Figure 5 As shown, the automatic drill feeding device assembly 10 comprises an automatic drill feeding device 10-1, a small sprocket 10-2 and a key C 10-3. The small sprocket 10-2 is connected to the output shaft end of the automatic drill feeding device 10-1 through the key C 10-3.

[0060] The compact well drilling and repairing winch with an automatic drill feeding device of the present invention has the following working process:

[0061] The high-speed gear working process of the compact well drilling and repairing winch with automatic drill feeding device of the present invention is as follows:

[0062] Start the main motor 1, and the automatic drilling device 10 is in the power-off state. The main motor 1 drives the input shaft 3-1 to rotate through the coupling a2, and the gear b3-1-2 is in the engaged state and the gear a3-1-1 is in the disengaged state through the shift mechanism 3-1-3. The gear b3-1-2 and the gear d3-2-2 are meshed to transmit power to drive the intermediate shaft 3-2 to rotate, and the intermediate shaft 3-2 drives the gear e3-2-3 to rotate. The gear e3-2-3 and the gear f3-3-1 are meshed to transmit power to drive the output shaft 3-3 to rotate, and the output shaft 3-3 drives the winch drum shaft assembly 7 to rotate through the coupling b5.

[0063] The low-speed gear working process of the compact well drilling and repairing winch with automatic drill feeding device of the present invention is as follows:

[0064] Start the main motor 1, and the automatic drilling device 10 is in the power-off state. The main motor 1 drives the input shaft 3-1 to rotate through the coupling a2, and the gear a3-1-1 is in the engaged state and the gear b3-1-2 is in the disengaged state through the shift mechanism 3-1-3. The gear a3-1-1 and the gear c3-2-1 are meshed to transmit power to drive the intermediate shaft 3-2 to rotate, and the intermediate shaft 3-2 drives the gear e3-2-3 to rotate. The gear e3-2-3 and the gear f3-3-1 are meshed to transmit power to drive the output shaft 3-3 to rotate, and the output shaft 3-3 drives the winch drum shaft assembly 7 to rotate through the coupling b5.

[0065] The automatic drill bit feeding working process of the compact well drilling and repairing winch with automatic drill bit feeding device of the present invention is as follows:

[0066] Start the automatic drill feeding device 10, and the main motor 1 is in the power-off state. The automatic drill feeding device 10 drives the small sprocket 10-2 to rotate, and the small sprocket 10-2 drives the outer gear sleeve I 8-1 to rotate through the chain 9, and the outer gear sleeve I 8-1 and the outer gear sleeve II 8-2 are engaged through the inner gear sleeve 8-3 of the gear clutch 8, driving the outer gear sleeve II 8-2 to rotate, and the outer gear sleeve II 8-2 is connected to the drum shaft 7-1 through the key b7-12, driving the drum shaft 7-1 to rotate, and the drum shaft 7-1 drives the winch drum shaft assembly 7 to rotate through the key a7-11.

[0067] Example 1

[0068] The compact well drilling and repairing winch with automatic drill feeding device mainly comprises a main motor 1, a coupling a2, a reduction box 3, an oil lubrication device 4, a coupling b5, a hydraulic disc brake device 6, a drum shaft assembly 7, a drum shaft 7-1, a left connecting hub 7-2, a drum body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, a key b7-12, a gear clutch 8, a chain 9, an automatic drill feeding device assembly 10, and a chain box 11. The main motor 1 is connected to the input shaft of the reduction box 3 through the coupling a2; the output shaft of the reduction box 3 is connected to the left end of the drum shaft assembly 7 through the coupling b5; the right end of the drum shaft assembly 7 is connected to the gear clutch 8 through the key b7-12; the gear clutch 8 is connected to the automatic drill feeding device assembly 10 through the chain 9;

[0069] The drum shaft assembly 7 is equipped with a hydraulic disc brake device 6; the reduction box 3 is equipped with an oil lubrication device 4.

[0070] The reduction box 3 comprises an input shaft 3-1, an intermediate shaft 3-2 and an output shaft 3-3, and the input shaft 3-1, the intermediate shaft 3-2 and the output shaft 3-3 are arranged horizontally in the same plane;

[0071] The input shaft 3-1 is equipped with a gear a3-1-1, a gear b3-1-2 and a shift mechanism 3-1-3; the input shaft 3-1 is connected to the coupling a2; the shift mechanism 3-1-3 is placed between the gear a3-1-1 and the gear b3-1-2;

[0072] The intermediate shaft 3-2 is equipped with gear c3-2-1, gear d3-2-2 and gear e3-2-3;

[0073] The output shaft 3-3 is equipped with a gear f3-3-1; the output shaft 3-3 is connected to the coupling b5.

[0074] 3. The compact well drilling and repairing winch with automatic drill feeding device according to claim 2, characterized in that the gear a3-1-1 is meshed with the gear c3-2-1; the gear b3-1-2 is meshed with the gear d3-2-2; the gear e3-2-3 is meshed with the gear f3-3-1;

[0075] The gear a3-1-1 is in the engaged state and the gear b3-1-2 is in the disengaged state through the gear shifting mechanism 3-1-3; the gear b3-1-2 is in the engaged state and the gear a3-1-1 is in the disengaged state through the gear shifting mechanism 3-1-3.

[0076] The roller shaft assembly 7 includes a roller shaft 7-1, a left connecting hub 7-2, a roller body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, and a key b7-12. The roller body 7-3, the left connecting hub 7-2, and the right connecting hub 7-4 are installed on the roller shaft 7-1; the roller body 7-3 is located between the left connecting hub 7-2 and the right connecting hub 7-4, and the roller body 7-3 is welded to the left connecting hub 7-2 and the right connecting hub 7-4 respectively; the roller shaft 7-1 is connected to the left connecting hub 7-2 by a key a7-11;

[0077] The left connecting hub 7-2 is connected to the left brake connecting disc 7-5 by bolts; the right connecting hub 7-4 is connected to the right brake connecting disc 7-6 by bolts; the left brake connecting disc 7-5 and the right brake connecting disc 7-6 are respectively provided with hydraulic disc brake devices 6; two sets of hydraulic disc brake devices 6 are diagonally arranged on both sides of the winch drum shaft assembly 7.

[0078] The left end of the drum shaft 7-1 is connected to the output shaft 3-3 through a coupling b5;

[0079] The right end of the drum shaft 7-1 is connected to the tooth clutch 8 through the key b7-12;

[0080] The gear clutch 8 comprises an outer gear sleeve I 8-1, an outer gear sleeve II 8-2, an inner gear sleeve 8-3, a bearing assembly 8-4, and a shift fork device 8-5;

[0081] The bearing assembly 8-4 is installed at the right end of the drum shaft 7-1, and the outer gear sleeve II 8-2 is installed at the right end of the drum shaft 7-1 through the key b7-12, and the outer gear sleeve II 8-2 is located on the right side of the bearing assembly 8-4; the gear of the outer gear sleeve II 8-2 faces the left side of the drum shaft 7-1;

[0082] The outer gear sleeve I8-1 is installed on the bearing assembly 8-4, with the sprocket facing the left side of the drum shaft 7-1 and the gear facing the right side of the drum shaft 7-1;

[0083] Through the meshing of internal and external teeth of the gears, the inner gear sleeve 8-3 is installed on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, and the fork device 8-5 can ensure that the inner gear sleeve 8-3 slides left and right on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, thereby realizing the disengagement and engagement of the outer gear sleeve I8-1 and the outer gear sleeve II8-2.

[0084] Example 2

[0085] The compact well drilling and repairing winch with automatic drill feeding device mainly comprises a main motor 1, a coupling a2, a reduction box 3, an oil lubrication device 4, a coupling b5, a hydraulic disc brake device 6, a drum shaft assembly 7, a drum shaft 7-1, a left connecting hub 7-2, a drum body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, a key b7-12, a gear clutch 8, a chain 9, an automatic drill feeding device assembly 10, and a chain box 11. The main motor 1 is connected to the input shaft of the reduction box 3 through the coupling a2; the output shaft of the reduction box 3 is connected to the left end of the drum shaft assembly 7 through the coupling b5; the right end of the drum shaft assembly 7 is connected to the gear clutch 8 through the key b7-12; the gear clutch 8 is connected to the automatic drill feeding device assembly 10 through the chain 9;

[0086] The drum shaft assembly 7 is equipped with a hydraulic disc brake device 6; the reduction box 3 is equipped with an oil lubrication device 4.

[0087] The reduction box 3 comprises an input shaft 3-1, an intermediate shaft 3-2 and an output shaft 3-3, and the input shaft 3-1, the intermediate shaft 3-2 and the output shaft 3-3 are arranged horizontally in the same plane;

[0088] The input shaft 3-1 is equipped with a gear a3-1-1, a gear b3-1-2 and a shift mechanism 3-1-3; the input shaft 3-1 is connected to the coupling a2; the shift mechanism 3-1-3 is placed between the gear a3-1-1 and the gear b3-1-2;

[0089] The intermediate shaft 3-2 is equipped with gear c3-2-1, gear d3-2-2 and gear e3-2-3;

[0090] The output shaft 3-3 is equipped with a gear f3-3-1; the output shaft 3-3 is connected to the coupling b5.

[0091] 3. The compact well drilling and repairing winch with automatic drill feeding device according to claim 2, characterized in that the gear a3-1-1 is meshed with the gear c3-2-1; the gear b3-1-2 is meshed with the gear d3-2-2; the gear e3-2-3 is meshed with the gear f3-3-1;

[0092] The gear a3-1-1 is in the engaged state and the gear b3-1-2 is in the disengaged state through the shift mechanism 3-1-3.

[0093] Through the shift mechanism 3-1-3, the gear b3-1-2 is in the engaged state and the gear a3-1-1 is in the disengaged state.

[0094] The roller shaft assembly 7 includes a roller shaft 7-1, a left connecting hub 7-2, a roller body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, and a key b7-12. The roller body 7-3, the left connecting hub 7-2, and the right connecting hub 7-4 are installed on the roller shaft 7-1; the roller body 7-3 is located between the left connecting hub 7-2 and the right connecting hub 7-4, and the roller body 7-3 is welded to the left connecting hub 7-2 and the right connecting hub 7-4 respectively; the roller shaft 7-1 is connected to the left connecting hub 7-2 by a key a7-11;

[0095] The left connecting hub 7-2 is connected to the left brake connecting disc 7-5 by bolts; the right connecting hub 7-4 is connected to the right brake connecting disc 7-6 by bolts; the left brake connecting disc 7-5 and the right brake connecting disc 7-6 are respectively provided with hydraulic disc brake devices 6; two sets of hydraulic disc brake devices 6 are diagonally arranged on both sides of the winch drum shaft assembly 7.

[0096] The left end of the drum shaft 7-1 is connected to the output shaft 3-3 through a coupling b5;

[0097] The right end of the drum shaft 7-1 is connected to the tooth clutch 8 through the key b7-12;

[0098] The gear clutch 8 comprises an outer gear sleeve I 8-1, an outer gear sleeve II 8-2, an inner gear sleeve 8-3, a bearing assembly 8-4, and a shift fork device 8-5;

[0099] The bearing assembly 8-4 is installed at the right end of the drum shaft 7-1, and the outer gear sleeve II 8-2 is installed at the right end of the drum shaft 7-1 through the key b7-12, and the outer gear sleeve II 8-2 is located on the right side of the bearing assembly 8-4; the gear of the outer gear sleeve II 8-2 faces the left side of the drum shaft 7-1;

[0100] The outer gear sleeve I8-1 is installed on the bearing assembly 8-4, with the sprocket facing the left side of the drum shaft 7-1 and the gear facing the right side of the drum shaft 7-1;

[0101] Through the meshing of internal and external teeth of the gears, the inner gear sleeve 8-3 is installed on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, and the fork device 8-5 can ensure that the inner gear sleeve 8-3 slides left and right on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, thereby realizing the disengagement and engagement of the outer gear sleeve I8-1 and the outer gear sleeve II8-2.

[0102] The tooth clutch 8 is connected to the automatic drill feeding device assembly 10 via a chain 9 .

[0103] The automatic drill feeding device assembly 10 comprises an automatic drill feeding device 10-1, a small sprocket 10-2 and a key c10-3. The small sprocket 10-2 is connected to the output shaft end of the automatic drill feeding device 10-1 through the key c10-3.

[0104] The tooth clutch 8 is connected to the automatic drill feeding device assembly 10 via a chain 9 .

[0105] The automatic drill feeding device assembly 10 comprises an automatic drill feeding device 10-1, a small sprocket 10-2 and a key c10-3. The small sprocket 10-2 is connected to the output shaft end of the automatic drill feeding device 10-1 through the key c10-3.

[0106] Example 3

[0107] The compact well drilling and repairing winch with automatic drill feeding device mainly comprises a main motor 1, a coupling a2, a reduction box 3, an oil lubrication device 4, a coupling b5, a hydraulic disc brake device 6, a drum shaft assembly 7, a drum shaft 7-1, a left connecting hub 7-2, a drum body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, a key b7-12, a gear clutch 8, a chain 9, an automatic drill feeding device assembly 10, and a chain box 11. The main motor 1 is connected to the input shaft of the reduction box 3 through the coupling a2; the output shaft of the reduction box 3 is connected to the left end of the drum shaft assembly 7 through the coupling b5; the right end of the drum shaft assembly 7 is connected to the gear clutch 8 through the key b7-12; the gear clutch 8 is connected to the automatic drill feeding device assembly 10 through the chain 9;

[0108] The drum shaft assembly 7 is equipped with a hydraulic disc brake device 6; the reduction box 3 is equipped with an oil lubrication device 4.

[0109] The reduction box 3 comprises an input shaft 3-1, an intermediate shaft 3-2 and an output shaft 3-3, and the input shaft 3-1, the intermediate shaft 3-2 and the output shaft 3-3 are arranged horizontally in the same plane;

[0110] The input shaft 3-1 is equipped with a gear a3-1-1, a gear b3-1-2 and a shift mechanism 3-1-3; the input shaft 3-1 is connected to the coupling a2; the shift mechanism 3-1-3 is placed between the gear a3-1-1 and the gear b3-1-2;

[0111] The intermediate shaft 3-2 is equipped with gear c3-2-1, gear d3-2-2 and gear e3-2-3;

[0112] The output shaft 3-3 is equipped with a gear f3-3-1; the output shaft 3-3 is connected to the coupling b5.

[0113] 3. The compact well drilling and repairing winch with automatic drill feeding device according to claim 2, characterized in that the gear a3-1-1 is meshed with the gear c3-2-1; the gear b3-1-2 is meshed with the gear d3-2-2; the gear e3-2-3 is meshed with the gear f3-3-1;

[0114] The gear a3-1-1 is in the engaged state and the gear b3-1-2 is in the disengaged state through the shift mechanism 3-1-3;

[0115] Through the shift mechanism 3-1-3, the gear b3-1-2 is in the engaged state and the gear a3-1-1 is in the disengaged state.

[0116] The roller shaft assembly 7 includes a roller shaft 7-1, a left connecting hub 7-2, a roller body 7-3, a right connecting hub 7-4, a left brake connecting disc 7-5, a right brake connecting disc 7-6, a left bearing seat 7-7, a right bearing seat 7-8, a left bearing 7-9, a right bearing 7-10, a key a7-11, and a key b7-12.

[0117] The roller shaft 7-1 is sleeved with a roller body 7-3, a left connecting hub 7-2 and a right connecting hub 7-4; the roller body 7-3 is located between the left connecting hub 7-2 and the right connecting hub 7-4, and the roller body 7-3 is welded to the left connecting hub 7-2 and the right connecting hub 7-4 respectively; the roller shaft 7-1 is connected to the left connecting hub 7-2 by a key a7-11;

[0118] The left connecting hub 7-2 is connected to the left brake connecting disc 7-5 by bolts; the right connecting hub 7-4 is connected to the right brake connecting disc 7-6 by bolts; the left brake connecting disc 7-5 and the right brake connecting disc 7-6 are respectively provided with hydraulic disc brake devices 6; two sets of hydraulic disc brake devices 6 are diagonally arranged on both sides of the winch drum shaft assembly 7.

[0119] The left end of the drum shaft 7-1 is connected to the output shaft 3-3 through a coupling b5;

[0120] The right end of the drum shaft 7-1 is connected to the tooth clutch 8 through the key b7-12;

[0121] The gear clutch 8 comprises an outer gear sleeve I 8-1, an outer gear sleeve II 8-2, an inner gear sleeve 8-3, a bearing assembly 8-4, and a shift fork device 8-5;

[0122] The bearing assembly 8-4 is installed at the right end of the drum shaft 7-1, and the outer gear sleeve II 8-2 is installed at the right end of the drum shaft 7-1 through the key b7-12, and the outer gear sleeve II 8-2 is located on the right side of the bearing assembly 8-4; the gear of the outer gear sleeve II 8-2 faces the left side of the drum shaft 7-1;

[0123] The outer gear sleeve I8-1 is installed on the bearing assembly 8-4, with the sprocket facing the left side of the drum shaft 7-1 and the gear facing the right side of the drum shaft 7-1;

[0124] Through the meshing of internal and external teeth of the gears, the inner gear sleeve 8-3 is installed on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, and the fork device 8-5 can ensure that the inner gear sleeve 8-3 slides left and right on the outer gear sleeve I8-1 and the outer gear sleeve II8-2, thereby realizing the disengagement and engagement of the outer gear sleeve I8-1 and the outer gear sleeve II8-2.

[0125] The tooth clutch 8 is connected to the automatic drill feeding device assembly 10 via a chain 9 .

[0126] The automatic drill feeding device assembly 10 comprises an automatic drill feeding device 10-1, a small sprocket 10-2 and a key c10-3. The small sprocket 10-2 is connected to the output shaft end of the automatic drill feeding device 10-1 through the key c10-3.

[0127] The tooth clutch 8 is connected to the automatic drill feeding device assembly 10 via a chain 9 .

[0128] The automatic drill feeding device assembly 10 comprises an automatic drill feeding device 10-1, a small sprocket 10-2 and a key c10-3. The small sprocket 10-2 is connected to the output shaft end of the automatic drill feeding device 10-1 through the key c10-3.

[0129] The outer gear sleeve I 8 - 1 , the outer gear sleeve II 8 - 2 , the inner gear sleeve 8 - 3 , the bearing assembly 8 - 4 , the chain 9 and the small sprocket 10 - 2 are all arranged inside the chain box 11 .

Claims

1. Compact drilling and workover winch with automatic drill feeding device, characterized in that: The invention comprises a main motor (1), a coupling a (2), a reduction box (3), an oil lubrication device (4), a coupling b (5), a hydraulic disc brake device (6), a roller shaft assembly (7), a roller shaft (7-1), a left connecting hub (7-2), a roller body (7-3), a right connecting hub (7-4), a left brake connecting disc (7-5), a right brake connecting disc (7-6), a left bearing seat (7-7), a right bearing seat (7-8), a left bearing (7-9), a right bearing (7-10), a key a (7-11), and a key b. (7-12), a tooth clutch (8), a chain (9), an automatic drill feeding device assembly (10), a chain box (11), the main motor (1) is connected to the input shaft of the reduction box (3) through a coupling a (2); the output shaft of the reduction box (3) is connected to the left end of the roller shaft assembly (7) through a coupling b (5); the right end of the roller shaft assembly (7) is connected to the tooth clutch (8) through a key b (7-12); the tooth clutch (8) is connected to the automatic drill feeding device assembly (10) through a chain (9); The drum shaft assembly (7) is equipped with a hydraulic disc brake device (6); and the reduction box (3) is equipped with an oil lubrication device (4).

2. The compact well drilling and workover winch with automatic drill feeding device according to claim 1, characterized in that: The reduction gearbox (3) comprises an input shaft (3-1), an intermediate shaft (3-2) and an output shaft (3-3), wherein the input shaft (3-1), the intermediate shaft (3-2) and the output shaft (3-3) are arranged in a horizontal coplanar manner; The input shaft (3-1) is equipped with a gear a (3-1-1), a gear b (3-1-2) and a shift mechanism (3-1-3); the input shaft (3-1) is connected to the coupling a (2); the shift mechanism (3-1-3) is disposed between the gear a (3-1-1) and the gear b (3-1-2); The intermediate shaft (3-2) is provided with a gear c (3-2-1), a gear d (3-2-2) and a gear e (3-2-3); A gear f (3-3-1) is installed on the output shaft (3-3); the output shaft (3-3) is connected to the coupling b (5).

3. The compact well drilling and repairing winch with automatic drill feeding device according to claim 2 is characterized in that The gear a (3-1-1) is meshed with the gear c (3-2-1); the gear b (3-1-2) is meshed with the gear d (3-2-2); the gear e (3-2-3) is meshed with the gear f (3-3-1); The gear a (3-1-1) is placed in an engaged state and the gear b (3-1-2) is placed in a disengaged state through the gear shifting mechanism (3-1-3); The gear b (3-1-2) is placed in an engaged state and the gear a (3-1-1) is placed in a disengaged state through the gear shift mechanism (3-1-3).

4. The compact well drilling and workover winch with an automatic drill feeding device according to any one of claims 1 to 3, characterized in that: The roller shaft assembly (7) comprises a roller shaft (7-1), a left connecting hub (7-2), a roller body (7-3), a right connecting hub (7-4), a left brake connecting disc (7-5), a right brake connecting disc (7-6), a left bearing seat (7-7), a right bearing seat (7-8), a left bearing (7-9), a right bearing (7-10), a key a (7-11), and a key b (7-12); The roller shaft (7-1) is sleeved with a roller body (7-3), a left connecting hub (7-2) and a right connecting hub (7-4); the roller body (7-3) is located between the left connecting hub (7-2) and the right connecting hub (7-4), and the roller body (7-3) is welded to the left connecting hub (7-2) and the right connecting hub (7-4) respectively; the roller shaft (7-1) and the left connecting hub (7-2) are connected via a key a (7-11); The left connecting hub (7-2) is connected to the left brake connecting disc (7-5) by bolts; the right connecting hub (7-4) is connected to the right brake connecting disc (7-6) by bolts; the left brake connecting disc (7-5) and the right brake connecting disc (7-6) are respectively provided with hydraulic disc brake devices (6); two sets of the hydraulic disc brake devices (6) are arranged diagonally on both sides of the winch drum shaft assembly (7); The left bearing seat (7-7) is installed on the left end of the roller shaft (7-1) through the left bearing (7-9); the right bearing seat (7-8) is installed on the right end of the roller shaft (7-1) through the right bearing (7-10); The left end of the drum shaft (7-1) is connected to the output shaft (3-3) via a coupling b (5); The right end of the roller shaft (7-1) is connected to the tooth clutch (8) via a key b (7-12).

5. The compact well drilling and workover winch with automatic drill feeding device according to claim 4, characterized in that: The tooth clutch (8) comprises an outer gear sleeve I (8-1), an outer gear sleeve II (8-2), an inner gear sleeve (8-3), a bearing assembly (8-4), and a shift fork device (8-5); The bearing assembly (8-4) is installed on the right end of the roller shaft (7-1), and the outer gear sleeve II (8-2) is installed on the right end of the roller shaft (7-1) through the key b (7-12), and the outer gear sleeve II (8-2) is located on the right side of the bearing assembly (8-4); the gear of the outer gear sleeve II (8-2) faces the left side of the roller shaft (7-1); The outer gear sleeve I (8-1) is mounted on the bearing assembly (8-4), with the sprocket facing the left side of the roller shaft (7-1) and the gear facing the right side of the roller shaft (7-1); The inner gear sleeve (8-3) is mounted on the outer gear sleeve I (8-1) and the outer gear sleeve II (8-2) by means of the meshing of the inner and outer gear teeth of the gears, and the shift fork device (8-5) can ensure that the inner gear sleeve (8-3) slides left and right on the outer gear sleeve I (8-1) and the outer gear sleeve II (8-2), thereby realizing the disengagement and engagement of the outer gear sleeve I (8-1) and the outer gear sleeve II (8-2).

6. The compact well drilling and workover winch with automatic drill feeding device according to claim 1 or 5, characterized in that: The tooth clutch (8) is connected to the automatic drill feeding device assembly (10) via the chain (9); The automatic drill feeding device assembly (10) comprises an automatic drill feeding device (10-1), a small sprocket (10-2) and a key c (10-3); the small sprocket (10-2) is connected to the output shaft end of the automatic drill feeding device (10-1) via the key c (10-3).

7. The compact well drilling and workover winch with automatic drill feeding device according to claim 6, characterized in that: The outer gear sleeve I (8-1), the outer gear sleeve II (8-2), the inner gear sleeve (8-3), the bearing assembly (8-4), the chain (9) and the small sprocket (10-2) are all arranged inside the chain box (11).

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