A cable delivery skid structure

Abstract

This utility model relates to a cable delivery skid structure, belonging to the technical field of oil well extraction equipment. The technical solution is as follows: a cable drum (16) is placed on the through shaft (903) between the fixed support (102) and the movable support (105). The distance between the fixed support and the movable support can be adjusted to accommodate cable drums of different widths. The bearing seat assembly (3), the motor reducer assembly (4), and the lifting mechanism assembly (5) are sequentially arranged on the base frame. The bearing seat assembly is located on the outside of the fixed support. The motor reducer assembly is connected to the bearing seat assembly through the sprocket drive assembly. The bearing seat assembly is connected to the shaft assembly. A cable laying device is provided on the lifting mechanism assembly. This utility model has a reasonable structure and is convenient for transportation. The reducer output shaft drives the cable drum through the sprocket drive, resulting in higher transmission efficiency, better working stability, stronger load-bearing capacity, and the ability to accommodate cable drums of different widths, thus providing better adaptability to cable drums.

Description

Technical Field

[0001] This utility model relates to a cable delivery skid structure, belonging to the technical field of oil well extraction equipment. Background Technology

[0002] Oil well cable delivery skids are specialized equipment used to safely and efficiently lay cables into oil wells. As oil wells are further exploited and geological energy resources continue to be depleted, the development of a cable delivery device with stronger load-bearing capacity, higher working efficiency, higher working stability, and better suitability for long-distance cable laying has become a current market demand.

[0003] Currently, cable delivery devices used in domestic oilfields have the following characteristics: 1) The reducer and hydraulic motor are located on the outside of the support, with the reducer output shaft facing the cable drum. This layout increases the width of the entire cable delivery device, making overall transportation of the equipment more difficult; 2) The reducer output shaft directly drives the drum. For heavy-duty cable delivery devices, this transmission method places excessively high demands on the reducer and hydraulic motor, significantly increasing design and manufacturing costs; 3) The height of the cable laying device is fixed. When changing to different specifications of cable drums, it is impossible to adjust the height of the cable laying device to set a reasonable cable extraction angle, resulting in increased cable deformation during operation and affecting cable lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a cable delivery skid structure with a reasonable structure and convenient transportation; the output shaft of the reducer drives the cable drum through a sprocket drive, which has higher transmission efficiency, better working stability, stronger load-bearing capacity, and better adaptability to the cable drum, thus solving the problems existing in the background technology.

[0005] The technical solution of this utility model is: A cable delivery skid structure includes a base assembly, a sprocket drive assembly, a bearing housing assembly, a motor reducer assembly, a lifting mechanism assembly, a shaft system assembly, and a cable delivery device. The base assembly comprises a base frame, a fixed bracket, and a movable bracket. The fixed bracket and the movable bracket are vertically mounted on the base frame, parallel to each other, and movable on the base frame. The fixed bracket and the movable bracket are connected by a through shaft in the shaft system assembly. A cable roller is placed on the through shaft between the fixed bracket and the movable bracket. The distance between the fixed bracket and the movable bracket can be adjusted to accommodate cable rollers of different widths. The bearing... The base assembly, motor reducer assembly, and lifting mechanism assembly are sequentially mounted on the base frame. The bearing housing assembly is located on the outside of the fixed bracket. The motor reducer assembly is connected to the bearing housing assembly via a sprocket drive assembly, and the bearing housing assembly is connected to the shaft system assembly. The cable drum rotates via the sprocket drive assembly, bearing housing assembly, motor reducer assembly, and shaft system assembly. The lifting mechanism assembly is located on the side of the fixed bracket and the movable bracket. The lifting mechanism assembly is equipped with a cable routing device. The cable on the cable drum passes through the cable routing device. The height of the cable routing device is adjusted by the lifting mechanism assembly to route the cable on the cable drum.

[0006] The base frame has two cylindrical guide rails and a dovetail slide at its bottom. The two cylindrical guide rails are arranged in parallel, and the dovetail slide is located in the middle between the two cylindrical guide rails. The movable support has three legs. The bottom of the two outer legs is provided with a round tube, which is sleeved on the two cylindrical guide rails. The bottom of the middle leg is provided with a sliding plate, which is slidably disposed in the dovetail slide. The cylindrical guide rails are provided with clamping cylinders. The cylinder body of the clamping cylinder is connected to the base frame, and the cylinder rod of the clamping cylinder is connected to the movable support. By extending and retracting the clamping cylinder, the movable support can move left and right, thereby adjusting the axial distance between the movable support and the fixed support to accommodate cable rollers of different widths.

[0007] The shaft assembly includes a first through-shaft bearing seat, a roller deflector, and a second through-shaft bearing seat. The first and second through-shaft bearing seats are respectively located on the top of the fixed bracket and the movable bracket. The first and second through-shaft bearing seats are respectively equipped with self-aligning roller bearings with fastening sleeves and are connected by a through shaft. The roller deflector is installed on the through shaft and is located inside the fixed bracket and close to the fixed bracket. The end face of the cable drum is in close contact with the roller deflector, and the roller deflector clamps the support beam of the cable drum, so that the cable drum can rotate with the roller deflector.

[0008] The roller deflector includes a deflector body and upright plates. The deflector body is mounted on a through shaft. The deflector body is a rectangular plate. Four upright plates are vertically arranged at the four corners of the deflector body. Bolts are provided on the upright plates. The support beam of the cable drum is arranged between the four upright plates. Tightening the bolts on the upright plates clamps the support beam of the cable drum.

[0009] The sprocket drive assembly includes a driving sprocket, a driven sprocket, and a chain. The driven sprocket is installed at the input end of the drive shaft of the bearing housing assembly, and the output end of the drive shaft is connected to a through shaft. The brake and hydraulic motor are installed at the input end of the motor reducer assembly, and the driving sprocket is installed on the output shaft of the reducer. The driving sprocket and the driven sprocket are connected by a chain. Both the driving sprocket and the driven sprocket are located on the outside of the fixed bracket.

[0010] The cable laying device includes a counter assembly, a guide assembly, and a guide device assembly. The guide device assembly is mounted on the lifting mechanism assembly, and the guide device assembly is equipped with the guide assembly and the guide assembly is equipped with the counter assembly.

[0011] The lifting mechanism assembly consists of two support slide rails and a lifting platform. The two support slide rails are fixed to the base assembly, and each support slide rail has two slide rail beams. Four square sleeves are located at the four corners of the lifting platform, and these sleeves are fitted onto the four slide rail beams of the two support slide rails. The lifting platform can move up and down along the slide rail beams. A guide device assembly is installed on the lifting platform. A lifting cylinder is installed inside each support slide rail, with its cylinder body mounted on the base assembly. The cylinder rod of the lifting cylinder is connected to the lifting platform. The extension and retraction of the lifting cylinder drives the lifting platform to move up and down, thereby adjusting the height of the guide device assembly. This allows the height of the guide device assembly to be adjusted according to the different outer diameters of the cable drum, ensuring a suitable extraction angle on the cable drum for smooth cable retrieval and deployment.

[0012] The guiding device assembly includes a lead screw, a cable laying hydraulic motor, a guide slider, a guide shaft, a guide mounting base, and a guide shaft mounting base. The lead screw is connected to the cable laying hydraulic motor, and the guide slider is slidably mounted on the lead screw. The top of the guide slider is connected to the guide mounting base. Guide shaft mounting bases are located at both ends of the bottom of the guide mounting base, and a guide shaft is mounted on each guide shaft mounting base. Cylindrical sleeves are provided on the guide mounting bases between the guide slider and the two guide shaft mounting bases. The distance between the guide slider and each guide shaft mounting base is slightly larger than the inner diameter of the cylindrical sleeve. The cable laying method is manual forced cable laying, where the cable laying hydraulic motor directly drives the lead screw to rotate, causing the guide assembly to move left and right along the width direction of the cable drum, thus achieving cable laying.

[0013] The guide assembly includes a guide horizontal roller, a guide vertical roller, an upper housing, a lower housing, and a guide support rod. There are four guide vertical rollers, all mounted on the lower housing; a cable is placed between the four guide vertical rollers. There are also four guide horizontal rollers; two are mounted on the upper housing, contacting the upper surface of the cable, and the other two are mounted on the lower housing, contacting the lower surface of the cable. The upper and lower housings are connected by four fastening bolts, and the lower housing is connected to the guide support rod by a pin. The guide support rod is housed within a cylindrical sleeve of the guide assembly. The guide assembly has an openable / closing structure for easy cable removal and insertion; two bearings are mounted on each guide horizontal roller and each guide vertical roller. In use, remove the four fastening bolts on the upper housing, and remove the upper housing along with the two guide rollers mounted on it. Place the cable between the four guide rollers on the lower housing, then reattach the upper housing to the lower housing, and tighten the four fastening bolts. Operate the cable feeding handle to drive the hydraulic motor to rotate the screw, which in turn moves the guide assembly in the cable rolling width direction to feed the cable. Furthermore, because the guide support rod of the guide assembly is located inside the cylindrical sleeve of the guide mounting base, the guide assembly can float up and down with the cable as a whole according to the cable tension. Since the guide support rod and the lower housing are connected by a pin, the tilt angle of the guide assembly can be flexibly adjusted to accommodate the cable removal angle on the cable drum.

[0014] The counter assembly includes a tension spring, a counting wheel, a counting wheel shaft, and a counter housing. The tension spring is connected at both ends to the upper housing and the counter housing, respectively. The counter housing is mounted on the ear plate of the upper housing via a second pin and can rotate around the second pin. The counting wheel is mounted on the counter housing via the counting wheel shaft, and the counting wheel is in contact with the cable. The counting wheel shaft is connected to an electronic encoder. During operation, the counter housing rotates around the second pin. The tension spring ensures close contact between the counting wheel and the cable. Torque is transmitted between the counting wheel and the counting wheel shaft via a key. The friction between the counting wheel and the cable drives the counting wheel shaft to rotate, thus driving the electronic encoder and achieving counting.

[0015] The bearing housing assembly includes a bearing housing and heavy-duty bearings. The bearing housing is mounted on a fixed bracket. There are two heavy-duty bearings, both of which are mounted on the drive shaft.

[0016] Hydraulic square box outriggers are installed at both the front and rear ends of the base frame. Each hydraulic square box outrigger includes a box body, two telescopic brackets, two horizontal telescopic cylinders, and two vertical lifting cylinders. The box body contains two telescopic brackets and two horizontal telescopic cylinders. Each telescopic bracket is matched with one horizontal telescopic cylinder. The cylinder body of the horizontal telescopic cylinder is connected to the inner wall of the box body, and the cylinder rod of the horizontal telescopic cylinder is connected to one end of the telescopic bracket. The other end of the telescopic bracket extends out of the box body and is equipped with a vertical lifting cylinder. The two telescopic brackets extend to the sides of the box body or retract into the box body by extending and retracting the two horizontal telescopic cylinders. The two telescopic brackets are raised or lowered by the two vertical lifting cylinders.

[0017] The base frame is also equipped with a handle push-pull mechanism, which is located between the lifting mechanism assembly and the hydraulic square box support leg at the rear end. The handle push-pull mechanism is telescopic and has an operating handle at the end. The operating handle can extend 1m out of the base frame, which is convenient for the operator to observe the operation of the cable drum and the cable laying situation. When the cable is not properly wound on the cable drum, the operator can correct it in time.

[0018] The base assembly between the lifting mechanism assembly and the handle push-pull mechanism is also equipped with a hydraulic station assembly and an electrical control cabinet, which are arranged opposite to each other.

[0019] The dovetail-shaped slide has two rows of bolt holes along its length, and the sliding plate has eight waist holes arranged in two rows. The waist holes on the sliding plate match the bolt holes on the dovetail-shaped slide. The movable bracket is fixed to the base frame by bolts, bolt holes, and waist holes.

[0020] There is a special multiple relationship between the bolt holes and the waist holes, which ensures that at least four sets of bolt holes correspond to the waist holes when the sliding plate is at any position of its stroke; the double insurance of the self-locking balance valve of the clamping cylinder and the fixing bolts of the sliding plate makes the moving support of the cable drum more stable and reliable in operation.

[0021] The drive sprocket, driven sprocket, chain, reducer, brake, hydraulic motor, lead screw, cable-laying hydraulic motor, hydraulic station assembly, electrical control cabinet, lifting cylinder, clamping cylinder, horizontal telescopic cylinder, and vertical lifting cylinder are all commonly known and used equipment in the art.

[0022] This invention mounts a cable drum on a through shaft between a movable support and a fixed support. The distance between the fixed and movable supports is adjusted to accommodate cable drums of different widths. The cable drum rotates with the drum deflector via a sprocket drive assembly, bearing housing assembly, motor reducer assembly, and shaft system assembly. One end of the cable is led out from the cable drum, passes through the guide assembly, and reaches the wellhead. The height of the guide assembly is adjusted by the lifting mechanism assembly, which moves the guide assembly in the cable rolling width direction to lay the cable. The length of the cable that has passed through is measured by a counter assembly.

[0023] The advantages of this utility model are: reasonable structure and convenient transportation; the output shaft of the reducer drives the cable drum through the sprocket drive, which has higher transmission efficiency, better working stability, stronger load-bearing capacity, and can accommodate cable drums of different widths, making it more adaptable to cable drums. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the present utility model; Figure 3 This is a schematic diagram of the dovetail-shaped slide and sliding plate structure of this utility model; Figure 4 This is a cross-sectional view of the cable laying device of this utility model; Figure 5 This is a schematic diagram of the cable drum structure of this utility model; Figure 6 This is a front view of the working process of this utility model; Figure 7 This is a top view of the working process of this utility model; In the diagram: Base assembly 1, base frame 101, fixed bracket 102, cylindrical guide rail 103, round tube 104, movable bracket 105, dovetail slide rail 106, sliding plate 107, sprocket drive assembly 2, bearing housing assembly 3, drive shaft 301, motor reducer assembly 4, lifting mechanism assembly 5, support slide rail 501, square sleeve 502, lifting platform 503, counter assembly 6, tension spring 601, counting wheel 602, counting wheel shaft 603, pin 2 604, counter housing 605, guide assembly 7, guide horizontal roller 701, guide vertical roller 70 2. Cable 703, Upper housing 704, Lower housing 705, Guide support rod 706, Guide device assembly 8, Lead screw 801, Cable laying hydraulic motor 802, Guide slider 803, Guide shaft 804, Guide mounting seat 805, Guide shaft mounting seat 806, Shaft assembly 9, Through shaft bearing seat one 901, Drum baffle 902, Through shaft 903, Through shaft bearing seat two 904, Hydraulic station assembly 10, Handle push-pull mechanism 11, Electrical control cabinet 12, Lifting cylinder 13, Clamping cylinder 14, Hydraulic square box support leg 15, Cable drum 16, Ground pulley 17, Top pulley 18. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] A cable delivery skid structure includes a base assembly 1, a sprocket drive assembly 2, a bearing housing assembly 3, a motor reducer assembly 4, a lifting mechanism assembly 5, a shaft system assembly 9, and a cable delivery device. The base assembly 1 consists of a base frame 101, a fixed bracket 102, and a movable bracket 105. The fixed bracket 102 and the movable bracket 105 are vertically mounted on the base frame 101 and are parallel to each other. The movable bracket 105 is movable on the base frame 101. The fixed bracket 102 and the movable bracket 105 are connected by a through shaft 903 of the shaft system assembly 9. A cable roller 16 is placed on the through shaft 903 between the fixed bracket 102 and the movable bracket 105. The distance between the fixed bracket 102 and the movable bracket 105 can be adjusted to accommodate different needs. Cable drums 16 of varying widths are provided. The bearing housing assembly 3, motor reducer assembly 4, and lifting mechanism assembly 5 are sequentially mounted on the base frame 101. The bearing housing assembly 3 is located outside the fixed bracket 102. The motor reducer assembly 4 is connected to the bearing housing assembly 3 via a sprocket drive assembly 2. The bearing housing assembly 3 is connected to the shaft assembly 9. The cable drum 16 rotates via the sprocket drive assembly 2, bearing housing assembly 3, motor reducer assembly 4, and shaft assembly 9. The lifting mechanism assembly 5 is located on the side of the fixed bracket 102 and the movable bracket 105. The lifting mechanism assembly 5 is equipped with a cable routing device. The cables on the cable drum 16 pass through the cable routing device. The height of the cable routing device is adjusted by the lifting mechanism assembly 5 to route the cables on the cable drum 16.

[0027] The base frame 101 has two cylindrical guide rails 103 and a dovetail slide 106 at its bottom. The two cylindrical guide rails 103 are arranged in parallel, and the dovetail slide 106 is located in the middle between the two cylindrical guide rails 103. The movable support 105 has three legs. The bottom of the two outer legs is provided with a round tube 104, which is sleeved on the two cylindrical guide rails 103. The bottom of the middle leg is provided with a sliding plate 107, which is slidably disposed in the dovetail slide 106. The cylindrical guide rails 103 are provided with clamping cylinders 14 on their sides. The cylinder body of the clamping cylinder 14 is connected to the base frame 101, and the cylinder rod of the clamping cylinder is connected to the movable support 105. By extending and retracting the clamping cylinder, the movable support 105 can move left and right, thereby adjusting the axial distance between the movable support 105 and the fixed support 102 to accommodate cable rollers of different widths.

[0028] The shaft assembly 9 includes a first through-shaft bearing seat 901, a roller deflector 902, and a second through-shaft bearing seat 904. The first through-shaft bearing seat 901 and the second through-shaft bearing seat 904 are respectively disposed on the top of the fixed bracket 102 and the movable bracket 105. The first through-shaft bearing seat 901 and the second through-shaft bearing seat 904 are respectively provided with self-aligning roller bearings with fastening sleeves and are connected by a through-shaft 903. The roller deflector 902 is installed on the through-shaft 903 and is disposed inside the fixed bracket 102 and close to the fixed bracket 102. The end face of the cable drum 16 is in close contact with the roller deflector 902, and the roller deflector 902 clamps the support beam of the cable drum 16, so that the cable drum 16 can rotate with the roller deflector 902.

[0029] The roller deflector 902 includes a deflector body and upright plates. The deflector body is mounted on the through shaft 903. The deflector body is a rectangular plate. Four upright plates are vertically arranged at the four corners of the deflector body. Bolts are provided on the upright plates. The support beam of the cable drum 16 is arranged between the four upright plates. Tightening the bolts on the upright plates clamps the support beam of the cable drum 16.

[0030] The sprocket drive assembly 2 includes a driving sprocket, a driven sprocket, and a chain. The driven sprocket is installed at the input end of the drive shaft 301 of the bearing housing assembly 3, and the output end of the drive shaft 301 is connected to the through shaft 903. The brake and hydraulic motor are installed at the input end of the motor reducer assembly 4, and the driving sprocket is installed on the output shaft of the reducer. The driving sprocket and the driven sprocket are connected by a chain. Both the driving sprocket and the driven sprocket are located on the outside of the fixed bracket 102.

[0031] The cable laying device includes a counter assembly 6, a guide assembly 7, and a guide device assembly 8. The guide device assembly 8 is mounted on the lifting mechanism assembly 5. The guide device assembly 8 is equipped with the guide assembly 7, and the guide assembly 7 is equipped with the counter assembly 6.

[0032] The lifting mechanism assembly 5 consists of two support slide rails 501 and a lifting platform 503. The two support slide rails 501 are fixed on the base assembly 1, and each support slide rail 501 has two slide rail beams. The four corners of the lifting platform 503 are respectively provided with four square sleeves 502, which are respectively fitted onto the four slide rail beams of the two support slide rails 501. The lifting platform 503 can move up and down along the slide rail beams. The lifting platform 503 is equipped with a guide device assembly 8. A lifting cylinder 13 is provided inside each support slide rail 501. The cylinder body of the lifting cylinder 13 is installed on the base assembly 1, and the cylinder rod of the lifting cylinder 13 is connected to the lifting platform 503. The lifting platform 503 is moved up and down by the extension and retraction of the lifting cylinder 13, thereby realizing the adjustment of the height of the guide device assembly 8. The height of the guide device assembly 8 can be adjusted according to the different outer diameters of the cable drum, so as to ensure that the cable drum has a suitable extraction angle for smooth cable retrieval and deployment.

[0033] The guiding device assembly 8 includes a lead screw 801, a cable laying hydraulic motor 802, a guide slider 803, a guide shaft 804, a guide mounting base 805, and a guide shaft mounting base 806. The lead screw 801 is connected to the cable laying hydraulic motor 802. The guide slider 803 is slidably mounted on the lead screw 801, and its top is connected to the guide mounting base 805. Guide shaft mounting bases 806 are respectively located at both ends of the bottom of the guide mounting base 805, and a guide shaft 804 is mounted on each guide shaft mounting base 806. Cylindrical sleeves are respectively provided on the guide mounting base 805 between the guide slider 803 and each guide shaft mounting base 806. The distance between the guide slider 803 and each guide shaft mounting base 806 is slightly larger than the inner diameter of the cylindrical sleeve. The cable laying method is manual forced cable laying. The cable laying hydraulic motor 802 directly drives the lead screw 801 to rotate, causing the guide assembly 7 to move left and right along the width direction of the cable drum, thus achieving cable laying.

[0034] The guide assembly 7 includes a guide horizontal roller 701, a guide vertical roller 702, an upper housing 704, a lower housing 705, and a guide support rod 706. There are four guide vertical rollers 702, all of which are mounted on the lower housing 705. A cable 703 is placed between the four guide vertical rollers 702. There are four guide horizontal rollers 701; two are mounted on the upper housing 704, contacting the upper surface of the cable 703, and the other two are mounted on the lower housing 705, contacting the lower surface of the cable 703. The upper housing 704 and lower housing 705 are connected by four fastening bolts, and the lower housing 705 is connected to the guide support rod 706 by a pin. The guide support rod 706 is housed within a cylindrical sleeve of the guide assembly 8. The guide assembly 7 has an openable structure for easy removal and installation of the cable 703. Two bearings are installed on each guide horizontal roller 701 and each guide vertical roller 702. In use, remove the four fastening bolts on the upper housing 704, remove the upper housing 704 along with the two guide horizontal rollers 701 mounted on it, place the cable 703 between the four guide vertical rollers 702 on the lower housing 705, then reattach the upper housing 704 to the lower housing 705, and tighten the four fastening bolts. Operate the cable routing handle to drive the hydraulic motor 802 to rotate the screw 801, thereby moving the guide assembly 7 in the cable rolling width direction to route the cable. In addition, since the guide support rod 706 of the guide assembly 7 is located inside the cylindrical sleeve of the guide mounting base 805, the guide assembly 7 can float up and down with the cable 703 as a whole according to the tension of the cable 703. Furthermore, the guide support rod 706 and the lower housing 704 are connected by a pin. Therefore, the tilt angle of the guide assembly 7 can be flexibly adjusted to adapt to the removal angle of the cable 703 on the cable drum 16.

[0035] The counter assembly 6 includes a tension spring 601, a counting wheel 602, a counting wheel shaft 603, and a counter housing 605. The tension spring 601 is connected at both ends to the upper housing 704 and the counter housing 605, respectively. The counter housing 605 is mounted on the ear plate of the upper housing 704 via a second pin 604 and can rotate around the second pin 604. The counting wheel 602 is mounted on the counter housing 605 via the counting wheel shaft 603, and the counting wheel 602 is in contact with the cable 703. The counting wheel shaft 603 is connected to the electronic encoder. During operation, the counter housing 605 rotates around the second pin 604. The tension of the tension spring 601 keeps the counting wheel 602 in close contact with the cable 703. Torque is transmitted between the counting wheel 602 and the counting wheel shaft 603 via a key. The friction between the counting wheel 602 and the cable 703 drives the counting wheel shaft 603 to rotate, thus driving the electronic encoder and achieving counting.

[0036] The bearing housing assembly 3 includes a bearing housing and a heavy-duty bearing. The bearing housing is mounted on a fixed bracket 102. There are two heavy-duty bearings, both of which are mounted on the drive shaft 301.

[0037] Hydraulic square box support legs 15 are respectively installed at the front and rear ends of the base frame 101. Each hydraulic square box support leg 15 includes a box body, two telescopic brackets, two horizontal telescopic cylinders, and two vertical lifting cylinders. The box body is equipped with two telescopic brackets and two horizontal telescopic cylinders. Each telescopic bracket is matched with one horizontal telescopic cylinder. The cylinder body of the horizontal telescopic cylinder is connected to the inner wall of the box body, and the cylinder rod of the horizontal telescopic cylinder is connected to one end of the telescopic bracket. The other end of the telescopic bracket extends out of the box body and is equipped with a vertical lifting cylinder. The two telescopic brackets extend to the sides of the box body or retract into the box body by the telescopic movement of the two horizontal telescopic cylinders. The two telescopic brackets are raised or lowered by the two vertical lifting cylinders.

[0038] The base frame 101 is also provided with a handle push-pull mechanism 11. The handle push-pull mechanism 11 is located between the lifting mechanism assembly 5 and the hydraulic square box support leg 15 at the rear end. The handle push-pull mechanism 11 is telescopic and has an operating handle at the end. The operating handle can extend 1m out of the base frame, which is convenient for the operator to observe the operation of the cable drum and the cable laying situation. When the cable is not properly wound on the cable drum, the operator can correct it in time.

[0039] The base assembly 1 between the lifting mechanism assembly 5 and the handle push-pull mechanism 11 is also provided with a hydraulic station assembly 10 and an electrical control cabinet 12, which are arranged opposite to each other.

[0040] The dovetail slide 106 has two rows of bolt holes along its length, and the sliding plate 107 has eight waist holes arranged in two rows. The waist holes on the sliding plate 107 match the bolt holes on the dovetail slide 106. The movable bracket 105 is fixed to the base frame 101 by bolts, bolt holes and waist holes.

[0041] There is a special multiple relationship between the bolt holes and the waist holes, which ensures that at least four sets of bolt holes correspond to the waist holes when the sliding plate 107 is at any position of its stroke; the double insurance of the self-locking balance valve of the clamping cylinder and the fixing bolts of the sliding plate 107 makes the moving support of the cable drum more stable and reliable in operation.

[0042] This invention mounts a cable drum 16 on a through shaft 903 between a movable bracket 105 and a fixed bracket 102. The distance between the fixed bracket 102 and the movable bracket 105 is adjusted to accommodate cable drums 16 of different widths. The cable drum 16 rotates with the drum deflector 902 via a sprocket drive assembly 2, a bearing housing assembly 3, a motor reducer assembly 4, and a shaft assembly 9. One end of the cable on the cable drum 16 is led out from the cable drum 16, passes through the guide assembly 7, and reaches the wellhead. The height of the guide assembly 8 is adjusted by the lifting mechanism assembly 5, which drives the guide assembly 7 to move in the cable rolling width direction to lay the cable. The length of the cable that has passed through is measured by the counter assembly 6.

[0043] The specific steps are as follows: Using a crane, the through shaft 903 and the drum deflector 902 are removed together, and the through shaft 903 is inserted into the cable drum 16. According to the width of the cable drum, the clamping cylinder 14 is controlled to extend and retract, causing the movable support 105 to move. Simultaneously, the sliding plate 107 moves within the dovetail slide rail 106, thereby adjusting the axial distance between the movable support 105 and the fixed support 102 to accommodate the width of the cable drum. After adjustment, the sliding plate 107 and the dovetail slide rail 106 are fixed with bolts, thus fixing the movable support 105. The cable drum 16 and the through shaft 903 are installed together on the through shaft bearing housing 1 901 and through shaft bearing housing 2 904. The hydraulic motor drives the drive sprocket on the reducer output shaft to rotate, driving the driven wheel to rotate, thereby causing the drive shaft 301 to drive the through shaft 903 to rotate, making the cable drum 16 rotate with the drum deflector 902. One end of the cable on the cable drum 16 is then removed from the cable drum. The cable is led out from the top of the guide assembly 7 and passes through the guide assembly 7 until it reaches the wellhead. The lifting platform 503 is moved up and down by the extension and retraction of the lifting cylinder 13, thereby adjusting the height of the guide assembly 8. The lead screw 801 of the guide assembly 8 rotates, causing the guide slider 803 to drive the guide assembly 7 to move in the cable rolling width direction to lay the cable. After the cable passes through the guide assembly 7, the tension of the tension spring 601 is adjusted so that the counting wheel 602 contacts the cable 703 with a suitable clamping force. The friction between the counting wheel 602 and the cable 703 drives the counting wheel 602 to rotate, thereby measuring the length of the cable that has passed through. At this time, an operator controls the forced cable laying hydraulic motor 802 through the operating handle on the push-pull mechanism 11. The operator adjusts the position of the cable laying device and the guide assembly at any time according to the position of the cable pulley in the width direction of the cable removal point to ensure that the cable is successfully removed.

[0044] In this embodiment, refer to the appendix. Figure 1-7A cable delivery structure includes a base assembly 1, a sprocket drive assembly 2, a bearing housing assembly 3, a motor reducer assembly 4, a lifting mechanism assembly 5, a counter assembly 6, a guide assembly 7, a guide device assembly 8, a shaft assembly 9, a hydraulic station assembly 10, a handle push-pull mechanism 11, an electrical control cabinet 12, a lifting cylinder 13, a clamping cylinder 14, and hydraulic square box support legs 15; The base assembly 1 consists of a base frame 101, a fixed bracket 102, and a movable bracket 105. The base frame 101 is equipped with two parallel cylindrical guide rails 103 and a dovetail-shaped slide rail 106 in the middle at its bottom. The movable bracket 105 has three legs, with a cylindrical tube 104 at the bottom of each of the two outer legs, which respectively fit onto the two parallel cylindrical guide rails 103 of the base frame 101. A sliding plate 107 is mounted at the bottom of the middle leg. The movable support 105 is inserted into the dovetail-shaped slide rail 106, allowing it to move left and right along the cylindrical guide rail 103 and the dovetail-shaped slide rail 106. One end of each clamping cylinder is connected to the base frame 101, and the other end is fixed to the movable support 105; there are two clamping cylinders 14 in total. The extension and retraction of the two clamping cylinders allows the movable support 105 to move left and right, thereby adjusting the axial distance between the movable support 105 and the fixed support 102 to accommodate cable drums of different widths. The dovetail-shaped slide rail 106 has two rows of bolt holes along its length, and correspondingly, the sliding plate 107 has eight waist holes (also arranged in two rows). A specific multiple relationship exists between the bolt holes and the waist holes, ensuring that at least four sets of bolt holes correspond to each other at any position of the sliding plate 107's stroke. This allows the movable support 105 to be fixed with bolts. The double safety features of the self-locking balance valve of the clamping cylinder and the fixing bolts of the sliding plate 107 make the moving support of the cable drum more stable and reliable in operation.

[0045] The shaft assembly 9 includes a first through-shaft bearing seat 901, a roller deflector 902, a through shaft 903, and a second through-shaft bearing seat 904. The bearing seat of the bearing seat assembly 3 and the first through-shaft bearing seat 901 are mounted on the fixed bracket 102. The second through-shaft bearing seat 904 is mounted on the top of the movable bracket 105. The bearing seat assembly 3 contains two heavy-duty bearings mounted on the drive shaft 301. The first through-shaft bearing seat 901 and the second through-shaft bearing seat 904 each contain a self-aligning roller bearing with a fastening sleeve. The two self-aligning roller bearings are connected by the through shaft 903. The driven wheel of the chain drive assembly 2 is mounted on the input end of the drive shaft 301 of the bearing seat assembly 3. The two are connected by a flat key to transmit torque. The driven wheels of the chain drive assembly 2 are arranged on the outside of the fixed bracket 102 of the base assembly 1. 301 is connected to the through shaft 903 via a mortise and tenon joint to transmit torque. A roller deflector 902 is mounted on the through shaft 903, and the roller deflector 902 is keyed to the through shaft 903. Bolts are mounted on the vertical plate of the roller deflector 902. After the cable drum 16 is installed, the end face of the cable drum 16 is pressed tightly against the roller deflector 902. Tightening the bolts on the vertical plate of the roller deflector 902 clamps the support beam of the cable drum 16, allowing the cable drum 16 to rotate with the roller deflector 902. The motor reducer assembly 4 is mounted on the fixed bracket 102 of the base assembly 1. The drive sprocket of the chain drive assembly 2 is mounted on the reducer output shaft. Torque is transmitted between the two via a spline. The drive sprocket is located outside the fixed bracket 102 of the base assembly 1. A brake and a hydraulic motor are mounted on the input end of the reducer. After the cable drum is installed, the torque output by the reducer is transmitted to the cable drum via a single-stage chain drive and then through the roller deflector 902, driving its rotation, achieving low-speed, high-torque output (reduction and torque increase). The chain drive assembly 2 is a double-row roller chain drive. Under the working condition of a torque of 50,000 Nm output to the cable drum, the safety factor of the double-row chain can reach more than 5, which greatly increases the reliability of the equipment during operation.

[0046] The lifting mechanism assembly 5 consists of two support slide rails 501 and a lifting platform 503. The two support slide rails 501 are fixed on the base assembly 1, and each support slide rail 501 has two slide rail beams. The lifting platform 503 has four square sleeves 502 at its four corners, which are respectively fitted onto the four slide rail beams of the two support slide rails 501. The lifting platform 503 can move up and down along the slide rail beams. The guide device assembly 8 is installed on the lifting platform 503. One end of the lifting cylinder 13 is installed on the base assembly 1, and the other end is installed on the lifting platform 503. There are two lifting cylinders 13. The lifting platform 503 is moved up and down by extending and retracting the lifting cylinders, thereby adjusting the height of the guide device assembly 8. The height of the guide device assembly 8 can be adjusted according to the cable drums of different outer diameters to ensure that the cable drums have a suitable extraction angle so that the cable can be retrieved and deployed smoothly. The guide assembly 8 is equipped with a lead screw 801 and a guide assembly 7. The cable laying method is manual forced cable laying. The cable laying hydraulic motor 802 of the guide assembly 8 directly drives the lead screw 801 to rotate, which drives the guide assembly 7 to move left and right along the width direction of the cable drum to realize cable laying.

[0047] The guide assembly 7 has an openable structure for easy cable removal and installation. The guide assembly 7 includes a guide horizontal roller 701, a guide vertical roller 702, an upper housing 704, a lower housing 705, and a guide support rod 706. There are four guide vertical rollers 702, all mounted on the lower housing 705. A cable 703 is placed between the four guide vertical rollers 702. There are also four guide horizontal rollers 701; two are mounted on the upper housing 704, contacting the upper surface of the cable 703, and the other two are mounted on the lower housing 705, contacting the lower surface of the cable 703. Two bearings are installed on each guide horizontal roller 701 and each guide vertical roller 702. The upper housing 704 and lower housing 705 are connected by four fastening bolts. The lower housing 705 is connected to the guide support rod 706 by a pin. The guide support rod 706 is housed within the cylindrical sleeve of the guide assembly 8. In use, remove the four fastening bolts on the upper housing 704, remove the upper housing 704 along with the two guide horizontal rollers 701 mounted on it, place the cable 703 between the four guide vertical rollers 702 of the lower housing 705, then reattach the upper housing 704 to the lower housing 705, and tighten the four fastening bolts. Operate the cable routing handle to drive the screw 801 of the forced cable routing hydraulic motor 802 to rotate, thereby moving the guide assembly 7 in the cable rolling width direction to route the cable. In addition, since the guide support rod 706 of the guide assembly 7 is located inside the cylindrical sleeve of the guide mounting base 805, the guide assembly 7 can float up and down with the cable 703 as a whole according to the tension of the cable 703. Furthermore, the guide support rod 706 and the lower housing 704 are connected by a pin. Therefore, the tilt angle of the guide assembly 7 can be flexibly adjusted to adapt to the removal angle of the cable 703 on the cable drum 16.

[0048] The counter assembly 6 includes a tension spring 601, a counting wheel 602, a counting wheel shaft 603, and a counter housing 605. The tension spring 601 is connected at both ends to the upper housing 704 and the counter housing 605, respectively. The counter housing 605 is mounted on the ear plate of the upper housing 704 via a second pin 604 and can rotate around the second pin 604. The counting wheel 602 is mounted on the counter housing 605 via the counting wheel shaft 603, and the counting wheel 602 is in contact with the cable 703. The counting wheel shaft 603 is connected to the electronic encoder. During operation, the counter housing 605 rotates around the second pin 604. The tension of the tension spring 601 keeps the counting wheel 602 in close contact with the cable 703. Torque is transmitted between the counting wheel 602 and the counting wheel shaft 603 via a key. The friction between the counting wheel 602 and the cable 703 drives the counting wheel shaft 603 to rotate, thus driving the electronic encoder and achieving counting.

[0049] The hydraulic square box outriggers 15 are installed at both ends of the base frame, with a total of two sets. Each set of hydraulic square box outriggers 15 includes a box body, two telescopic brackets, two horizontal telescopic cylinders, and two vertical lifting cylinders. The horizontal telescopic cylinders drive the telescopic brackets to extend and retract, while the vertical lifting cylinders are responsible for the overall lifting and lowering of the cable delivery skid equipment. The hydraulic square box outriggers 15 make the loading, unloading, and transportation of the equipment more convenient. When the cable delivery skid equipment needs to be transported, the horizontal telescopic cylinders first drive the telescopic brackets to extend, so that the distance between the two vertical lifting cylinders of the same hydraulic square box outrigger 15 is greater than the width of the transport vehicle trailer. Then, the vertical lifting cylinders drive the entire skid equipment to a position higher than the height of the transport vehicle trailer and hover it. The transport vehicle trailer is then placed below the skid equipment, the telescopic brackets are retracted, the skid equipment is placed on the trailer, and after the equipment is secured, it can be transported, eliminating the need for a crane for lifting. Each cylinder of the hydraulic square box outrigger 15 is equipped with a balance valve. Under load conditions, even if the hydraulic pump stops working, the cylinder can maintain its current position, improving the stability and safety of the equipment.

[0050] The base assembly 1 is also equipped with a handle push-pull mechanism 11, which allows the operating handle mounted on it to extend 1m beyond the cable delivery skid frame. The handle push-pull mechanism 11 is telescopic and can adopt common telescopic mechanisms, such as telescopic sleeve structures. When the handle push-pull mechanism 11 is in the retracted state, the operator's view will be obstructed by the hydraulic station assembly and lifting mechanism assembly, making it difficult to observe the cable laying situation. Therefore, the handle push-pull mechanism 11 is extended to facilitate the operator's observation of the cable drum operation and cable laying situation. When the cable is not properly wound on the cable drum, the operator can correct it in time.

[0051] The operation process of this utility model is as follows: Before operation, remove the upper cover fastening bolts of the through-shaft bearing housing 901 and through-shaft bearing housing 904, remove the upper cover of the bearing housing, and use a crane to remove the entire through-shaft 903 together with the drum deflector plate 902. Insert the through-shaft into the cable drum, ensuring the cable drum is tightly against the end face of the drum deflector plate. Tighten the bolts on the drum deflector plate to restrict the axial rotation of the cable drum. Use a crane to lift the cable drum, ensuring the axes of the cable drum and the through-shaft are level throughout the lifting process. During cable drum installation, operate the operating valve handle on the hydraulic control cabinet to control the extension and retraction of the clamping cylinder, adjusting the distance between the fixed bracket 102 and the movable bracket 105 to suit the insertion of the cable drum. Place the cable drum and through-shaft together onto the through-shaft bearing housing 901 and through-shaft bearing housing 904, install the bearing housing cover, and lock the movable support with bolts to ensure the stability and reliability of the cable dropping operation. During operation, one end of the cable is led out from the cable reel, passes through the guide assembly, and follows the guiding direction of the top pulley 18 and the bottom pulley 17 until it reaches the wellhead. The counter housing 605 is mounted on the outer shell of the guide assembly 7. After the cable passes through the guide assembly, the pressure of the tension spring 601 needs to be adjusted so that the counting wheel 602 contacts the cable 703 with a suitable clamping force. The friction between the counting wheel and the cable drives the counting wheel to rotate, thereby measuring the length of the cable that has passed. At this time, an operator needs to control the forced cable laying hydraulic motor through the operating handle on the push-pull mechanism 11, and adjust the position of the cable laying device and the guide assembly at any time according to the position of the cable removal point in the width direction of the cable reel to ensure that the cable is successfully removed.

[0052] This utility model features a motor reducer assembly mounted on a base assembly, which does not increase the width of the entire device, resulting in a more rational structural design and convenient transportation. The cable drum is driven by a sprocket drive assembly, bearing housing assembly, and shaft system assembly, leading to higher transmission efficiency and better operational stability. Adjusting the distance between the fixed and movable supports accommodates cable drums of different widths, resulting in stronger load-bearing capacity and better adaptability. The lifting mechanism assembly allows adjustment of the guide device assembly's height, ensuring a suitable extraction angle on the cable drum for smooth cable retrieval and deployment. The guide assembly guides the cable and can move up and down with the cable as a whole, adjusting its tilt angle to suit the extraction angle of the cable 703 on the cable drum. A counter assembly measures the length of the passing cable.

[0053] This utility model is a high-efficiency device designed specifically for oilfield operations. Its main function is to safely, accurately, and efficiently deliver cables into oil wells. It uses its own hydraulic station to provide power, and a hydraulic motor drives a reducer to rotate the cable drum.

Claims

1. A cable delivery skid structure, characterized in that: The system includes a base assembly (1), a sprocket drive assembly (2), a bearing housing assembly (3), a motor reducer assembly (4), a lifting mechanism assembly (5), a shaft system assembly (9), and a cable management device. The base assembly (1) consists of a base frame (101), a fixed bracket (102), and a movable bracket (105). The fixed bracket (102) and the movable bracket (105) are vertically mounted on the base frame (101). The fixed bracket (102) and the movable bracket (105) are parallel to each other. The movable bracket (105) is movable on the base frame (101). The fixed bracket (102) and the movable bracket (105) are connected by a through shaft (903) of the shaft system assembly (9). A cable drum (16) is placed on the through shaft (903) between the fixed support (102) and the movable support (105); the bearing housing assembly (3), the motor reducer assembly (4) and the lifting mechanism assembly (5) are arranged sequentially on the base frame (101), the bearing housing assembly (3) is arranged outside the fixed support (102), the motor reducer assembly (4) is connected to the bearing housing assembly (3) through the sprocket transmission assembly (2), and the bearing housing assembly (3) is connected to the shaft assembly (9); the lifting mechanism assembly (5) is arranged on the side of the fixed support (102) and the movable support (105), and a cable laying device is provided on the lifting mechanism assembly (5), and the cable on the cable drum (16) passes through the cable laying device.

2. The cable delivery skid structure according to claim 1, characterized in that: The base frame (101) has two cylindrical guide rails (103) and a dovetail slide (106) at its bottom. The two cylindrical guide rails (103) are arranged in parallel, and the dovetail slide (106) is located in the middle between the two cylindrical guide rails (103). The movable support (105) has three legs. The bottom of the two outer legs is provided with round tubes (104), which are respectively sleeved on the two cylindrical guide rails (103). The bottom of the middle leg is provided with a sliding plate (107), which is slidably disposed in the dovetail slide (106). The cylindrical guide rails (103) are provided with clamping cylinders (14) on their sides. The cylinder body of the clamping cylinder (14) is connected to the base frame (101), and the cylinder rod of the clamping cylinder is connected to the movable support (105). The movable support (105) can move left and right by extending and retracting the clamping cylinder.

3. A cable delivery skid structure according to claim 1 or 2, characterized in that: The shaft assembly (9) includes a first through-shaft bearing seat (901), a roller deflector (902), and a second through-shaft bearing seat (904). The first through-shaft bearing seat (901) and the second through-shaft bearing seat (904) are respectively disposed on the top of the fixed bracket (102) and the movable bracket (105). The first through-shaft bearing seat (901) and the second through-shaft bearing seat (904) are connected by a through shaft (903). The roller deflector (902) is installed on the through shaft (903). The roller deflector (902) is disposed on the inner side of the fixed bracket (102) and close to the fixed bracket (102). The end face of the cable drum (16) is in close contact with the roller deflector (902), and the roller deflector (902) clamps the support beam of the cable drum (16).

4. A cable delivery skid structure according to claim 1 or 2, characterized in that: The sprocket drive assembly (2) includes a drive sprocket, a driven wheel and a chain. The driven wheel is installed at the input end of the drive shaft (301) of the bearing housing assembly (3), and the output end of the drive shaft (301) is connected to the through shaft (903). The brake and hydraulic motor are installed at the input end of the motor reducer assembly (4), and the drive sprocket is installed on the output shaft of the reducer. The drive sprocket and the driven wheel are connected by a chain. The drive sprocket and the driven wheel are both located on the outside of the fixed bracket (102).

5. A cable delivery skid structure according to claim 1 or 2, characterized in that: The cable laying device includes a counter assembly (6), a guide assembly (7) and a guide device assembly (8). The guide device assembly (8) is mounted on the lifting mechanism assembly (5). The guide device assembly (8) is provided with the guide assembly (7), and the guide assembly (7) is provided with the counter assembly (6).

6. The cable delivery skid structure according to claim 5, characterized in that: The lifting mechanism assembly (5) consists of two support slide rails (501) and a lifting platform (503). The two support slide rails (501) are fixed on the base assembly (1), and each support slide rail (501) is provided with two slide rail beams. The four corners of the lifting platform (503) are provided with four square sleeves (502), which are respectively fitted onto the four slide rail beams of the two support slide rails (501). The lifting platform (503) can move up and down along the slide rail beams. The lifting platform (503) is equipped with a guide device assembly (8). A lifting cylinder (13) is provided inside each support slide rail (501). The cylinder body of the lifting cylinder (13) is installed on the base assembly (1), and the cylinder rod of the lifting cylinder (13) is connected to the lifting platform (503). The lifting platform (503) moves up and down by extending and retracting the lifting cylinder (13).

7. The cable delivery skid structure according to claim 6, characterized in that: The guiding device assembly (8) includes a lead screw (801), a cable laying hydraulic motor (802), a guide slider (803), a guide shaft (804), a guide mounting seat (805), and a guide shaft mounting seat (806). The lead screw (801) is connected to the cable laying hydraulic motor (802). The guide slider (803) is slidably mounted on the lead screw (801). The top of the guide slider (803) is connected to the guide mounting seat (805). The bottom ends of the guide mounting seat (805) are respectively provided with guide shaft mounting seats (806), and the guide shaft mounting seat (806) is provided with a guide shaft (804). The guide mounting seat (805) between the guide slider (803) and the two guide shaft mounting seats (806) is respectively provided with a cylindrical sleeve. The distance between the guide slider (803) and each guide shaft mounting seat (806) is greater than the inner diameter of the cylindrical sleeve.

8. The cable delivery skid structure according to claim 7, characterized in that: The guide assembly (7) includes a guide horizontal roller (701), a guide vertical roller (702), an upper housing (704), a lower housing (705), and a guide support rod (706). There are four guide vertical rollers (702), all of which are mounted on the lower housing (705). A cable (703) is placed between the four guide vertical rollers (702). There are four guide horizontal rollers (701), two of which are mounted on the lower housing (705). 701) is installed on the upper housing (704) and contacts the upper surface of the cable (703). The other two guide rollers (701) are installed on the lower housing (705) and contact the lower surface of the cable (703). The upper housing (704) and the lower housing (705) are connected by four fastening bolts. The lower housing (705) is connected to the guide support rod (706) by a pin. The guide support rod (706) is set in the cylindrical sleeve of the guide device assembly (8).

9. The cable delivery skid structure according to claim 8, characterized in that: The counter assembly (6) includes a tension spring (601), a counting wheel (602), a counting wheel shaft (603), and a counter housing (605). The two ends of the tension spring (601) are connected to the upper housing (704) and the counter housing (605) respectively. The counter housing (605) is mounted on the ear plate of the upper housing (704) through a second pin (604) and can rotate around the second pin (604). The counting wheel (602) is mounted on the counter housing (605) through the counting wheel shaft (603). The counting wheel (602) is in contact with the cable (703), and the counting wheel shaft (603) is connected to the electronic encoder.

10. A cable delivery skid structure according to claim 1 or 2, characterized in that: The base frame (101) is equipped with hydraulic square box legs (15) at both the front and rear ends. The hydraulic square box legs (15) include a box body, two telescopic brackets, two horizontal telescopic cylinders and two vertical lifting cylinders. The box body is provided with two telescopic brackets and two horizontal telescopic cylinders. Each telescopic bracket is matched with a horizontal telescopic cylinder. The cylinder body of the horizontal telescopic cylinder is connected to the inner wall of the box body. The cylinder rod of the horizontal telescopic cylinder is connected to one end of the telescopic bracket. The other end of the telescopic bracket extends out of the box body and is provided with a vertical lifting cylinder. The two telescopic brackets extend to the sides of the box body or retract into the box body through the telescopic movement of the two horizontal telescopic cylinders. The two telescopic brackets are raised or lowered through the two vertical lifting cylinders.

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