Automatic control device of electrically driven logging winch

Abstract

The invention relates to the technical field of traction equipment, in particular to an automatic control device of an electrically-driven logging winch. Comprising a bottom plate, a steel wire rope and a winding drum used for winding the steel wire rope, the winding drum is connected to the bottom plate through a support, a plurality of expansion blocks are connected to the winding drum, the expansion blocks are arranged on the inner side of the wound steel wire rope, and the expansion blocks can move towards the outside of the winding drum relative to the winding drum. According to the scheme, the multiple tensioning sets are arranged, when the monitoring device monitors that the stretched end of the steel wire rope is loosened, a second telescopic shaft can be driven by a tensioning motor to rotate, so that two tensioning rods are controlled to rotate, the loosened steel wire rope is tensioned, and if one tensioning set is not enough for tensioning, the tensioning set is not enough for tensioning. By means of the mode, when the steel wire ropes are wound by multiple circles, the situation that friction force between the steel wire ropes is increased due to winding of the tensioning wheels is reduced, and the service life of the steel wire ropes is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of traction equipment, and in particular to an automatic control device for an electrically driven logging winch. Background Art

[0002] Logging winch is a special equipment used in the exploration and development of oil and gas, mainly used for logging operations underground. Logging refers to the measurement of geological and physical parameters underground by various instruments and tools during the drilling process or after completion of the well, in order to evaluate the nature of the formation and resource potential.

[0003] When the winch is reeling in the wire rope, the wire rope will be wound around the reel multiple times. When the wire rope is wound in multiple layers, the tension distribution between the different layers is uneven, which may cause the cable to become loose during use, affecting the stability of the winch.

[0004] The existing method is usually to tension the wire rope through a tensioning wheel, but when too much wire rope is wound on the tensioning wheel, the wire rope will still become loose due to the excessive winding of the wire rope. And when the tensioning wheel is winding the wire rope, and the wire rope is wound around the tensioning wheel for multiple turns, the friction between each layer of wire rope and between the wire rope and the tensioning wheel will increase. Long-term friction will cause wear of the outer layer and internal structure of the wire rope, shortening the service life of the wire rope. Based on the existing problems, an automatic control device for an electric-driven logging winch is proposed. Summary of the invention

[0005] In order to solve the above problems, an embodiment of the present invention provides an automatic control device for an electrically driven logging winch, which achieves the purpose of solving XX problem raised in the background technology and has XX effect.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: an automatic control device for an electrically driven logging winch, comprising a base plate, a wire rope and a winding drum for winding the wire rope, the winding drum being connected to the base plate through a bracket, a plurality of expansion blocks being connected to the winding drum, the expansion blocks being arranged on the inner side of the wound wire rope, and the expansion blocks being able to move outside the winding drum relative to the winding drum; A plurality of tensioning groups are provided above the bottom plate and in the extension direction of the steel wire rope, wherein the tensioning groups are composed of two tensioning rods, and the extended steel wire rope passes through the middle of the two tensioning rods of the same group; The bottom plate is also provided with a fixing plate equal in number to the tensioning group, the fixing plate is connected with a tensioning mechanism, the tensioning mechanism comprises a first telescopic shaft and a second telescopic shaft, the first telescopic shaft can slide along the setting direction of the second telescopic shaft; The bottom plate is connected with a contraction group, and the first telescopic shaft moves toward the direction of the second telescopic shaft through the action of the contraction group during the rotation process.

[0007] Furthermore, a monitoring device is provided on the bottom plate, and the monitoring device is arranged on the path along which the steel wire rope extends, and the monitoring device is used to monitor the state of the steel wire rope; A sensor device is provided on the side wall of the winding drum, and the sensor device is used to detect the number of winding turns of the wire rope.

[0008] Furthermore, a receiving groove is provided on the winding drum, and the expansion block is slidably arranged in the receiving groove. An expansion motor is connected to any one side of the winding drum, and an expansion gear ring is fixedly connected to the output end of the expansion motor. A rotating shaft is rotatably connected in the receiving groove, and an expansion gear is fixedly connected to one end of the rotating shaft close to the expansion motor, and the expansion gear is meshedly connected with the expansion gear ring.

[0009] Furthermore, an expansion shaft is rotatably connected in the receiving groove, and bevel gears are fixedly connected to the expansion shaft and the rotating shaft. The two bevel gears are meshed and connected, and when the rotating shaft rotates, the expansion shaft can be driven to rotate through the bevel gears; The expansion shaft is threadedly connected to the expansion block, and the rotation of the expansion shaft drives the expansion block to move toward the outside of the winding drum.

[0010] Furthermore, a tensioning motor is fixedly connected to the fixed plate close to the winding drum, driving gears are arranged on the other fixed plates, and a toothless gear is fixedly connected to the second telescopic shaft; The second telescopic shaft on the fixed plate close to the winding drum is connected to the output end of the tensioning motor, and the remaining fixed plates are rotatably connected to the second telescopic shaft; A plurality of movable racks are slidably connected to the bottom plate, and the toothless gears and the driving gears on two adjacent fixed plates can mesh with the same movable rack.

[0011] Furthermore, an adapter block is provided on the first telescopic shaft, the tensioning group is fixedly connected to the fixed shaft, a support plate is provided on the bottom plate, the fixed shaft is rotatably connected to the support plate, and an adapter groove corresponding to the adapter block is opened on the end of the fixed shaft corresponding to the first telescopic shaft. In the initial state, when the adapter block is in the adapter groove, the first telescopic shaft can drive the fixed shaft to rotate.

[0012] Furthermore, the retracting group includes a rotating frame and a retracting frame, a guide rod is provided between the rotating frame and the retracting frame in the rotation direction of the first telescopic axis, and a cover rod that can rotate in one direction is provided at the connection between the guide rod and the retracting frame; A moving rod is fixedly connected to the first telescopic shaft. The moving rod moves to the position of the contraction frame through the guide rod during the rotation of the first telescopic shaft.

[0013] Furthermore, the second telescopic shaft is inserted and connected to the first telescopic shaft, and a return spring is provided between the second telescopic shaft and the first telescopic shaft.

[0014] The beneficial effects of the embodiments of the present invention are: 1. This solution uses expansion blocks set on the winding drum. When the wire rope is wound too many times, it will be detected by the sensor device, so that multiple expansion blocks will expand to the outside of the winding drum, thereby tightening the wound wire rope.

[0015] 2. In this scheme, by setting up multiple tensioning groups, when the monitoring device detects that one end of the extended wire rope is loose, the second telescopic shaft will be driven to rotate by the tensioning motor, thereby controlling the rotation of the two tensioning rods, thereby tightening the slack wire rope. If one tensioning group is not sufficient for tensioning, the subsequent tensioning groups will rotate in sequence until the wire rope reaches the tensioned state. This method can reduce the increase in friction between the wire ropes due to the winding of the tensioning wheel when the wire rope is wound multiple times, thereby increasing the service life of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the winding drum in the present invention; Figure 3 It is a schematic diagram of the positions of the expansion shaft and the expansion block in the present invention; Figure 4 It is a schematic diagram of the positions of the rotating frame and the shrinking frame in the present invention; Figure 5 It is a schematic diagram of the structure of the rotating frame and the shrinking frame in the present invention; Figure 6 It is a schematic diagram of the structure of the first telescopic shaft and the second telescopic shaft in the present invention.

[0017] In the figure: 1. bottom plate; 2. winding drum; 3. wire rope; 4. monitoring device; 5. sensing device; 6. bracket; 7. expansion block; 8. storage groove; 9. rotating shaft; 10. expansion motor; 11. expansion gear ring; 12. expansion gear; 13. expansion shaft; 14. fixed plate; 15. tensioning motor; 16. tensioning rod; 17. support plate; 18. fixed shaft; 19. rotating frame; 20. contraction frame; 21. first telescopic shaft; 22. moving rod; 23. cover rod; 24. toothless gear; 25. second telescopic shaft; 26. driving gear; 27. moving rack; 28. adapter block; 29. ​​reset spring. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0019] Example 1 See also Figure 1-6 An automatic control device for an electrically driven logging winch comprises a base plate 1, a steel wire rope 3 and a winding drum 2 for winding the steel wire rope 3. The winding drum 2 is connected to the base plate 1 through a bracket 6. A plurality of expansion blocks 7 are connected to the winding drum 2. The expansion blocks 7 are arranged on the inner side of the wound steel wire rope 3. The expansion blocks 7 can move outward from the winding drum 2 relative to the winding drum 2. When the expansion blocks 7 move, the winding radius of the steel wire rope 3 is enlarged. Thus, when the steel wire rope 3 is wound too many times, the winding radius of the steel wire rope 3 can be increased, so that the slack part of the steel wire rope 3 can be tensioned. This part is tensioned at the slack position of the steel wire rope 3 on the winding drum 2.

[0020] Specifically: a monitoring device 4 is provided on the bottom plate 1, and the monitoring device 4 is arranged on the extension path of the wire rope 3, and the monitoring device 4 is used to monitor the state of the wire rope 3; a sensor device 5 is provided on the side wall of the winding drum 2, and the sensor device 5 is used to detect the number of winding turns of the wire rope 3.

[0021] When the steel wire rope 3 is loose in the extending direction, the steel wire rope 3 will fall down. At this time, the monitoring device 4 can monitor the state of the steel wire rope 3. When the steel wire rope 3 is loose, the tensioning motor 15 will be controlled to drive the second telescopic shaft 25 to rotate. The steel wire rope 3 wound on the winding drum 2 will gradually increase the radius of the steel wire rope winding due to the excessive number of windings. When a certain radius is reached, it will be detected by the sensor device 5. The expansion motor 10 is controlled by the sensor device 5. Under the action of the expansion motor 10, the multiple expansion blocks 7 are moved to the outside of the winding drum 2. In this way, the steel wire rope 3 wound on the outer surface of the winding drum 2 is tensioned. It should be noted that the winding drum 2 is externally connected to a driving source for driving the rotation of the winding drum 2. The rotation of the winding drum 2 is used to reel the steel wire rope 3. This method is a prior art and will not be explained.

[0022] Example 2 The winding drum 2 is provided with a receiving groove 8, and the expansion block 7 is slidably arranged in the receiving groove 8. An expansion motor 10 is connected to any one side of the winding drum 2, and an expansion gear ring 11 is fixedly connected to the output end of the expansion motor 10. A rotating shaft 9 is rotatably connected in the receiving groove 8, and an expansion gear 12 is fixedly connected to one end of the rotating shaft 9 close to the expansion motor 10, and the expansion gear 12 is meshed with the expansion gear ring 11. When the wire rope 3 is wound on the surface of the winding drum 2 to a certain number of turns, the radius of the wire rope 3 winding is monitored by the sensor device 5, and then the expansion motor 10 is controlled, and the expansion gear ring 11 is rotated under the action of the expansion motor 10, and then the corresponding rotating shaft 9 is driven to rotate through multiple expansion gears 12.

[0023] The expansion shaft 13 is rotatably connected in the receiving groove 8, and bevel gears are fixedly connected to the expansion shaft 13 and the rotating shaft 9. The two bevel gears are meshed and connected. When the rotating shaft 9 rotates, the expansion shaft 13 can be driven to rotate through the bevel gears. The expansion shaft 13 is threadedly connected to the expansion block 7 , and the rotation of the expansion shaft 13 drives the expansion block 7 to move toward the outside of the winding drum 2 .

[0024] As mentioned above, when the rotating shaft 9 rotates, the rotating shaft 9 will drive the expansion shaft 13 to rotate under the action of the bevel gear, and when the expansion shaft 13 rotates, it will drive the expansion block 7 to move to the outside of the winding drum 2 under the action of the thread, thereby increasing the winding radius of the wire rope 3, so as to tension the multiple turns of wire rope 3 wound on the outer surface of the winding drum 2. It should be noted that the sensor device 5 will control the moving distance of the expansion block 7 according to the winding radius of the wire rope 3.

[0025] Example 3 A plurality of tensioning groups are provided above the bottom plate 1 and in the extending direction of the steel wire rope 3. The tensioning groups are composed of two tensioning rods 16. The extended steel wire rope 3 passes through the middle of the two tensioning rods 16 of the same group. By rotating the two tensioning rods 16 on the same tensioning group, the extended steel wire rope 3 is vertically stretched, thereby tensioning the slack steel wire rope 3.

[0026] Specifically, the bottom plate 1 is also provided with a number of fixing plates 14 equal to the number of the tensioning groups, and the fixing plates 14 are connected with a tensioning mechanism, and the tensioning mechanism includes a first telescopic shaft 21 and a second telescopic shaft 25, and the first telescopic shaft 21 can slide along the setting direction of the second telescopic shaft 25; The second telescopic shaft 25 is inserted and connected with the first telescopic shaft 21, and a return spring 29 is arranged between the second telescopic shaft 25 and the first telescopic shaft 21. The return spring 29 can ensure that when the first telescopic shaft 21 rotates, the adapter block 28 is always in the adapter groove, and this method can prevent the first telescopic shaft 21 from being separated from the adapter groove in the initial state due to the fact that the first telescopic shaft 21 is not subjected to force in the setting direction of the second telescopic shaft 25.

[0027] The fixing plate 14 close to the winding drum 2 is fixedly connected with a tensioning motor 15, and the other fixing plates 14 are provided with a driving gear 26, and the second telescopic shaft 25 is fixedly connected with a toothless gear 24; The second telescopic shaft 25 on the fixed plate 14 close to the winding drum 2 is connected to the output end of the tensioning motor 15, and the remaining fixed plates 14 are rotatably connected to the second telescopic shaft 25; A plurality of movable racks 27 are slidably connected to the bottom plate 1 , and the toothless gears 24 and the driving gears 26 on two adjacent fixed plates 14 can mesh with the same movable rack 27 .

[0028] For example, the toothless gear 24 closest to the winding drum 2 will not drive the moving rack 27 to move when it first rotates. It is not until the second telescopic shaft 25 drives the tensioning group to rotate, so that the wire rope 3 is tensioned for a certain distance, that the teeth on the toothless gear 24 will mesh with the moving rack 27, thereby driving the moving rack 27 to move. In the subsequent tensioning group, the driving gear 26 plays the same role as the tensioning motor 15 (also used to drive the second telescopic shaft 25 to rotate). When the rotation of a tensioning group is not enough to make up for the slack state of the wire rope 3, the tensioning motor 15 will continue to rotate, driving the subsequent tensioning group to tension the wire rope 3 in the same way, until the monitoring device 4 detects that the wire rope 3 is tensioned, and the tensioning motor 15 will not drive the corresponding second telescopic shaft 25 to rotate. The wire rope 3 can be tensioned according to its degree of slack.

[0029] An adapter block 28 is provided on the first telescopic shaft 21, the tensioning group is fixedly connected to the fixed shaft 18, a support plate 17 is provided on the base plate 1, the fixed shaft 18 is rotatably connected to the support plate 17, and an adapter groove corresponding to the adapter block 28 is provided on the end of the fixed shaft 18 corresponding to the first telescopic shaft 21. In the initial state, when the adapter block 28 is in the adapter groove, the first telescopic shaft 21 can drive the fixed shaft 18 to rotate.

[0030] The specific operation mode of this embodiment is as follows: when the monitoring device 4 detects that the steel wire rope 3 falls due to slack, the monitoring device 4 will control the tensioning motor 15 to drive the second telescopic shaft 25 to rotate. When the second telescopic shaft 25 rotates, it will drive the corresponding fixed shaft 18 to rotate, thereby causing the two tensioning rods 16 in the same tensioning group to rotate, so as to tighten the slack steel wire rope 3. Among them, the rotation angle of a tensioning group is limited to avoid friction of the steel wire rope in the same tensioning group. When the tensioning group rotates a certain angle, the corresponding first telescopic shaft 21 will move toward the direction of the second telescopic shaft 25 under the action of the guide rod, so that the adapter block 28 is separated from the adapter groove. Then the tensioning motor 15 will continue to drive the corresponding toothless gear 24 to rotate, driving the subsequent tensioning group to rotate, so as to gradually tighten the steel wire rope 3. After the steel wire rope 3 is tightened, the monitoring device 4 will not control the tensioning motor 15 to drive the second telescopic shaft 25 to rotate.

[0031] By adopting the above-mentioned method, when the wire rope 3 is tensioned, the wire rope 3 will not be wound multiple times, thereby reducing the increase in friction between the wire ropes due to the winding of the tensioning wheel in the existing method, and improving the service life of the wire rope 3.

[0032] Example 4 This embodiment is a preferred method for achieving movement of the first telescopic shaft 21 after rotating a certain angle.

[0033] Specifically, a contraction group is connected to the bottom plate 1 , and the first telescopic shaft 21 moves toward the direction of the second telescopic shaft 25 due to the action of the contraction group during the rotation process.

[0034] The retracting group includes a rotating frame 19 and a retracting frame 20. A guide rod is provided between the rotating frame 19 and the retracting frame 20 in the rotation direction of the first telescopic shaft 21. A cover rod 23 that can rotate in one direction is provided at the connection between the guide rod and the retracting frame 20. The first telescopic shaft 21 is fixedly connected with a moving rod 22 . The moving rod 22 is moved to the position of the shrinking frame 20 through the guide rod during the rotation of the first telescopic shaft 21 .

[0035] See attached Figure 4 When the first telescopic shaft 21 rotates, the moving rod 22 is driven to rotate. The moving rod 22 will move to one side of the contraction frame 20 under the action of the guide rod, so that the first telescopic shaft 21 can move toward the direction of the contraction frame 20 during the rotation. In this way, after one tensioning group tightens the wire rope 3 by rotation, if the tensioning degree of the wire rope 3 still does not meet the standard, the corresponding adjacent tensioning group will continue to be driven to rotate. Therefore, the wire rope 3 can be tightened by multiple tensioning groups, and the wire rope 3 will not generate friction with other parts of the wire rope 3 during the tensioning process, thereby improving the service life of the wire rope 3.

[0036] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0039] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An automatic control device for an electrically driven logging winch, characterized in that: The invention comprises a base plate (1), a steel wire rope (3) and a winding drum (2) for winding the steel wire rope (3), wherein the winding drum (2) is connected to the base plate (1) via a bracket (6), a plurality of expansion blocks (7) are connected to the winding drum (2), the expansion blocks (7) are arranged on the inner side of the wound steel wire rope (3), and the expansion blocks (7) can move relative to the winding drum (2) toward the outside of the winding drum (2); A plurality of tensioning groups are provided above the bottom plate (1) and in the extension direction of the steel wire rope (3), wherein the tensioning groups are composed of two tensioning rods (16), and the extended steel wire rope (3) passes through the middle of the two tensioning rods (16) of the same group; The bottom plate (1) is also provided with a number of fixing plates (14) equal to the number of the tensioning groups, the fixing plates (14) being connected to a tensioning mechanism, the tensioning mechanism comprising a first telescopic shaft (21) and a second telescopic shaft (25), the first telescopic shaft (21) being slidable along a setting direction of the second telescopic shaft (25); The bottom plate (1) is connected to a retractable group, and during the rotation process of the first telescopic shaft (21), the first telescopic shaft (21) moves in the direction of the second telescopic shaft (25) through the action of the retractable group.

2. The automatic control device for an electrically driven logging winch according to claim 1, characterized in that: A monitoring device (4) is provided on the bottom plate (1), and the monitoring device (4) is arranged on a path along which the steel wire rope (3) extends, and the monitoring device (4) is used to monitor the state of the steel wire rope (3); A sensor device (5) is provided on the side wall of the winding drum (2), and the sensor device (5) is used to detect the number of winding turns of the steel wire rope (3).

3. The automatic control device for an electrically driven logging winch according to claim 1, characterized in that: The winding drum (2) is provided with a receiving groove (8), the expansion block (7) is slidably arranged in the receiving groove (8), an expansion motor (10) is connected to any one side of the winding drum (2), and the output end of the expansion motor (10) is fixedly connected to an expansion gear ring (11); A rotating shaft (9) is rotatably connected in the receiving groove (8); an expansion gear (12) is fixedly connected to one end of the rotating shaft (9) close to the expansion motor (10); and the expansion gear (12) is meshingly connected to the expansion gear ring (11).

4. The automatic control device for an electrically driven logging winch according to claim 3, characterized in that: An expansion shaft (13) is rotatably connected in the receiving groove (8), and bevel gears are fixedly connected to the expansion shaft (13) and the rotating shaft (9), and the two bevel gears are meshingly connected, so that when the rotating shaft (9) rotates, the expansion shaft (13) can be driven to rotate through the bevel gears; The expansion shaft (13) is threadedly connected to the expansion block (7), and the rotation of the expansion shaft (13) drives the expansion block (7) to move toward the outside of the winding drum (2).

5. The automatic control device for an electrically driven logging winch according to claim 1, characterized in that: The fixing plate (14) close to the winding drum (2) is fixedly connected to a tensioning motor (15), the remaining fixing plates (14) are provided with driving gears (26), and the second telescopic shaft (25) is fixedly connected to a toothless gear (24); The second telescopic shaft (25) on the fixed plate (14) close to the winding drum (2) is connected to the output end of the tensioning motor (15), and the remaining fixed plates (14) are rotatably connected to the second telescopic shaft (25); A plurality of movable racks (27) are slidably connected to the bottom plate (1), and the toothless gears (24) and the driving gears (26) on two adjacent fixed plates (14) can mesh with the same movable rack (27).

6. The automatic control device for an electrically driven logging winch according to claim 5, characterized in that: An adaptor block (28) is provided on the first telescopic shaft (21), the tensioning group is fixedly connected to the fixed shaft (18), a support plate (17) is provided on the bottom plate (1), the fixed shaft (18) is rotatably connected to the support plate (17), an adaptor groove corresponding to the adaptor block (28) is provided on one end of the fixed shaft (18) corresponding to the first telescopic shaft (21), and in an initial state, when the adaptor block (28) is in the adaptor groove, the first telescopic shaft (21) can drive the fixed shaft (18) to rotate.

7. The automatic control device for an electrically driven logging winch according to claim 1, characterized in that: The retracting group comprises a rotating frame (19) and a retracting frame (20); a guide rod is provided between the rotating frame (19) and the retracting frame (20) in the rotation direction of the first telescopic axis (21); and a unidirectionally rotatable cover rod (23) is provided at the connection between the guide rod and the retracting frame (20); A moving rod (22) is fixedly connected to the first telescopic shaft (21), and the moving rod (22) is moved to the position of the contraction frame (20) via the guide rod during the rotation of the first telescopic shaft (21).

8. The automatic control device for an electrically driven logging winch according to claim 1, characterized in that: The second telescopic shaft (25) is inserted and connected to the first telescopic shaft (21), and a return spring (29) is provided between the second telescopic shaft (25) and the first telescopic shaft (21).

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