Guiding device and wellbore measuring device

Abstract

This invention belongs to the technical field of traction equipment and discloses a guiding device and a wellbore measuring device. The guiding device includes an actuator, an elastic component, and a traction mechanism. The actuator includes a fall arrestor and a fall arrestor. The fall arrestor is disposed on the equipment to be tractioned, and the fall arrestor is disposed on the fall arrestor. The fall arrestor has a guide groove that extends along its length. The fall arrestor is inserted into the guide groove and forms a closed circumferential execution through-hole with the guide groove. A guide rope passes through the execution through-hole. The elastic component is connected to the fall arrestor and is used to drive the fall arrestor from the guiding state to the fall arrestor state when the traction rope breaks. In the fall arrestor state, the fall arrestor reduces the cross-sectional area of ​​the execution through-hole to clamp the guide rope. The traction mechanism is connected to the traction rope and the fall arrestor. The traction mechanism is used to drive the fall arrestor in the guiding state when the traction rope pulls it. In the guiding state, the fall arrestor expands the cross-sectional area of ​​the execution through-hole to release the guide rope.

Description

Technical Field

[0001] This invention relates to the field of traction equipment technology, and more particularly to a guiding device and a wellbore measuring device. Background Technology

[0002] To ensure the safe and reliable operation of elevators, the shaft needs to be measured after construction to evaluate whether the construction quality meets the design requirements.

[0003] In existing technologies, most surveying and mapping equipment is moved along the wellbore by traction, and the equipment performs automated surveying and mapping of the wellbore during the movement.

[0004] In the event of an accidental breakage of the traction rope, the surveying equipment will fall downwards under the influence of gravity. The depth of the wellbore can range from tens to hundreds of meters. If the fall of the surveying equipment is not prevented in time, it will eventually crash into the bottom of the wellbore and be damaged. Summary of the Invention

[0005] One object of the present invention is to provide a guiding device that, when installed on the equipment to be traction, can prevent the equipment to be traction from falling and being damaged due to the breakage of the traction rope.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A guiding device, configured to connect to a traction rope, includes:

[0008] An actuator includes a fall arrestor and a fall arrestor. The fall arrestor is configured to be installed on the equipment to be traction. The fall arrestor is movably installed on the fall arrestor. The fall arrestor is provided with a guide groove that extends along its own length. The fall arrestor is inserted into the guide groove and forms a closed execution through hole in the circumferential direction with the guide groove. The execution through hole is configured to allow a guide rope to pass through it.

[0009] An elastic component is connected to the fall arrestor. The elastic component is used to drive the fall arrestor to switch from a guiding state to a fall arrestor state when the traction rope breaks. In the fall arrestor state, the fall arrestor reduces the cross-sectional area of ​​the actuation through hole, and the fall arrestor and the fall arrestor seat can clamp the guide rope.

[0010] A traction mechanism is configured to be connected to the traction rope and the fall arrestor. The traction mechanism is used to drive the fall arrestor into a guiding state when the traction rope pulls it, in which the fall arrestor expands the cross-sectional area of ​​the actuation through hole to release the guide rope.

[0011] Optionally, the device to be traction is provided with a mounting base, and the traction mechanism includes a positioning bracket and a traction component. The position of the positioning bracket is fixed relative to the fall arrestor. The traction component is movably disposed on the positioning bracket and the mounting base. One end of the traction component is connected to the fall arrestor, and the other end of the traction component is configured to be connected to the traction rope. When the traction rope pulls itself, the traction component pulls the fall arrestor to press against the fall arrestor, so that the fall arrestor is in the guiding state.

[0012] Optionally, the traction assembly includes a first traction member and a second traction member. The first traction member is slidably disposed on the mounting base, and the second traction member is movably disposed on the positioning bracket. The first traction member is configured to be connected to the traction rope. One end of the second traction member is connected to the first traction member, and the other end is connected to the fall arrestor. When the traction rope pulls itself, the first traction member slides and drives the second traction member to pull the fall arrestor against the fall arrestor base.

[0013] Optionally, the first traction member includes a traction connector and a traction carrier. The traction carrier is slidably disposed on the mounting base and connected to the second traction member. One end of the traction connector is disposed on the traction carrier. The mounting base is provided with a clearance hole. The other end of the traction connector passes through the clearance hole and is configured to be connected to the traction rope. Under the traction of the traction rope, the traction connector drives the traction carrier to slide until it presses against the mounting base.

[0014] Optionally, the actuator further includes a limiting member, which is detachably mounted on the fall arrestor and forms a threading hole with the fall arrestor. The second traction member passes through the threading hole, and the end of the second traction member away from the first traction member is provided with a pressure head with a cross-sectional dimension larger than that of the threading hole.

[0015] Optionally, the fall arrestor includes a fall arrest actuator and a fall arrest drive unit connected together. The fall arrest actuator is movably disposed on the fall arrest base. One end of the fall arrest actuator away from the fall arrest drive unit is inserted into the guide groove. The traction mechanism is connected to the fall arrest drive unit. The fall arrest drive unit can press against the fall arrest base under the action of the traction mechanism, so that the fall arrest actuator expands the cross-sectional area of ​​the actuator through hole and releases the guide rope.

[0016] Optionally, the fall arrestor is rotatably mounted on the fall arrestor base, the traction mechanism is connected to one side of the fall arrestor drive unit located at the rotation center of the fall arrestor, and the elastic component is connected to the other side of the fall arrestor drive unit located at the rotation center of the fall arrestor. The fall arrestor drive unit can drive the fall arrestor to rotate under the action of the elastic component, so that the fall arrestor reduces the cross-sectional area of ​​the execution through hole and clamps the guide rope.

[0017] Optionally, the actuator further includes an extension configured to be disposed on the traction device, and the fall arrestor is disposed at the end of the extension away from the traction device.

[0018] Optionally, the elastic component includes a support base, an adjusting member, and an elastic member. The support base is disposed on the fall arrestor, the adjusting member is movably disposed on the support base, and the elastic member is disposed on the adjusting member and connected to the fall arrestor. The adjusting member can move to change the elastic force exerted by the elastic member on the fall arrestor.

[0019] Another object of the present invention is to provide a wellbore measuring device having a guide device thereon, which can prevent the equipment to be pulled by the wellbore measuring device from falling and being damaged due to the breakage of the traction rope.

[0020] To achieve this objective, the present invention adopts the following technical solution:

[0021] A wellbore measuring device includes a traction rope, a guide rope, a device to be traction, and a guiding device as described above. The anti-fall seat of the guiding device is disposed on the device to be traction. The traction rope is connected to the traction mechanism of the guiding device, and the guide rope passes through the execution through hole of the guiding device.

[0022] Beneficial effects:

[0023] The guiding device provided by the present invention is installed on the equipment to be traction, and the guide rope is passed through the execution through hole of the actuator. The guide rope provides guidance and limit for the equipment to be traction during the traction process. At the same time, the traction rope is connected to the traction mechanism to traction the entire equipment to be traction with the guiding device.

[0024] During the dragging process by the traction rope, the anti-fall device is driven by the traction mechanism to expand the cross-sectional area of ​​the execution through hole, releasing the guide rope. The anti-fall device is in a guiding state, allowing the actuator to move freely along the guide rope without it detaching. The guide rope consistently provides guidance for the equipment to be dragged, which is equipped with a guiding device. When the traction rope breaks, the force exerted by the traction rope on the traction mechanism suddenly disappears. The elastic component drives the anti-fall device to reduce the cross-sectional area of ​​the execution through hole, clamping the guide rope. The anti-fall device is in an anti-fall state, and the reduced cross-sectional area of ​​the execution through hole allows the anti-fall device and the anti-fall seat to clamp the guide rope, thus enabling the guiding device of the equipment to hold onto the guide rope and prevent the equipment from falling.

[0025] The wellbore measuring device provided by the present invention has a guide device on the traction equipment that switches from a guiding state to an anti-fall state when the traction rope breaks, thereby gripping the guide rope to stop the fall and avoid the traction equipment from falling and being damaged. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a traction device equipped with a guiding device provided in an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a top view of a traction device equipped with a guide device provided in an embodiment of the present invention;

[0029] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0030] Figure 5 This is a side view of a traction device equipped with a guiding device provided in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the guiding device on the traction device provided in the embodiment of the present invention when it is in the guiding state;

[0032] Figure 7 This is a schematic diagram of the guide device on the traction equipment provided in the embodiment of the present invention switching to the anti-fall state at the moment the traction rope breaks;

[0033] Figure 8 This is a schematic diagram of the relationship between the actuator and the guide rope when the traction device is tilted, according to an embodiment of the present invention.

[0034] In the diagram: 101, through hole; 102, guide rope; 103, traction rope;

[0035] 1. Actuator; 11. Fall arrestor seat; 111. Guide groove; 112. First clamping plate; 1121. Connecting part; 1122. Spacing part; 113. Second clamping plate; 114. Limiting protrusion; 12. Fall arrestor component; 121. Fall arrestor actuator; 122. Fall arrestor drive part; 13. Extension component; 131. Connecting seat; 132. Extension column; 14. Limiting component; 15. Rotating shaft; 16. Bushing;

[0036] 2. Traction mechanism; 21. Traction assembly; 211. First traction component; 2111. Traction bearing component; 2112. Traction connector; 2113. Fastening screw; 212. Second traction component; 2121. Traction flexible shaft; 21211. Pressure head; 2122. Sleeve; 22. Positioning bracket; 221. First positioning frame; 2211. Positioning tube; 222. Second positioning frame; 2221. Second adjusting component; 22211. Threaded cap; 22212. Second locking nut; 23. Sliding assembly; 231. Sliding rod; 232. Guide sleeve;

[0037] 3. Elastic component; 31. Support base; 32. Elastic element; 33. Adjusting element; 331. Adjusting bolt; 332. First locking nut;

[0038] 4. The equipment to be traction; 41. Mounting base; 411. Fixing plate; 4111. Clearance hole; 412. Connecting column; 42. Body. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0043] See Figures 1-6 During well exploration, the traction machine uses traction rope 103 to pull the equipment 4 to be pulled up and down along the well. The well is also equipped with a guide rope 102 extending along its length. The guide rope 102 is taut and straight. The equipment 4 to be pulled slides on the guide rope 102 and is guided by the guide rope 102.

[0044] like Figure 1 As shown, this embodiment provides a guiding device that can be installed on the aforementioned traction device 4, serving as a mechanism for the traction device 4 to slide in conjunction with the guide rope 102. The guiding device is configured to connect with the traction rope 103. When the traction rope 103 breaks, the guiding device can also hold the guide rope 102 tightly to prevent the traction device 4 from being damaged due to falling. Specifically, the guiding device includes an actuator 1, an elastic component 3, and a traction mechanism 2.

[0045] like Figures 1-5 As shown, the actuator 1 includes a fall arrestor 11 and a fall arrestor 12. The fall arrestor 11 is configured to be mounted on the device to be traction 4. The fall arrestor 12 is movably mounted on the fall arrestor 11. The fall arrestor 11 is provided with a guide groove 111, which extends along its own length. The fall arrestor 12 is inserted into the guide groove 111 and forms an execution through hole 101 that is closed in the circumferential direction with the guide groove 111. The execution through hole 101 is configured to allow a guide rope 102 to pass through it.

[0046] See also Figures 1-5The elastic component 3 is connected to the fall arrestor 12. The elastic component 3 is used to drive the fall arrestor 12 from a guiding state to a fall arresting state when the traction rope 103 breaks. In the fall arresting state, the fall arrestor 12 reduces the cross-sectional area of ​​the actuation through-hole 101, and the fall arrestor 12 and the fall arrestor seat 11 can clamp the guide rope 102. The traction mechanism 2 is configured to be connected to the traction rope 103 and the fall arrestor 12. The traction mechanism 2 is used to drive the fall arrestor 12 into a guiding state when the traction rope 103 pulls it. In the guiding state, the fall arrestor 12 expands the cross-sectional area of ​​the actuation through-hole 101 to release the guide rope 102. In other words, by changing the size of the cross-sectional area of ​​the actuation through-hole 101, mutual guidance between the actuation mechanism 1 and the guide rope 102 or the actuation mechanism 1 clamping the guide rope 102 can be achieved.

[0047] like Figures 6-8 As shown, when using the guiding device provided in this embodiment, it is set on the device to be traction 4, and the guide rope 102 is passed through the execution through hole 101 of the actuator 1. The guide rope 102 provides guidance and limit for the device to be traction 4 during the traction process. At the same time, the traction rope 103 is connected to the traction mechanism 2 to traction the entire device to be traction 4 equipped with the guiding device.

[0048] When the tension of the traction rope 103 acting on the fall arrestor 12 through the traction mechanism 2 is greater than the force acting on the fall arrestor 12 by the elastic component 3, the fall arrestor 12 moves to the guiding state. When the tension of the traction rope 103, in addition to overcoming the force of the elastic component 3, can also balance the weight of the device to be pulled 4 and the guiding device, the traction rope 103 lifts the device to be pulled 4 and the guiding device as a whole, and the fall arrestor 12 is locked in the guiding state. When the traction rope 103 breaks, the force acting on the fall arrestor 12 through the traction mechanism 2 disappears, and the elastic component 3 drives the fall arrestor 12 to move to the fall arrest state, where it hugs the guide rope 102 with the fall arrestor seat 11.

[0049] During the dragging process by the traction rope 103, the anti-fall component 12 is kept in a guiding state. The cross-sectional area of ​​the actuating through hole 101 is larger than that of the guide rope 102. Therefore, the actuator 1 can move freely along the guide rope 102, and the guide rope 102 will not come out of the actuator 1, thus providing guidance for the guiding device and the equipment 4 to be dragged. When the traction rope 103 breaks, the force of the traction rope 103 on the traction mechanism 2 suddenly disappears. The elastic component 3 drives the anti-fall component 12 to move to the anti-fall state, making the cross-sectional area of ​​the actuating through hole 101 smaller than that of the guide rope 102, thereby gripping the guide rope 102. The force of the traction mechanism 2 on the anti-fall component 12 is directly related to the force of the traction rope 103 on it, which facilitates the anti-fall component 12 to react promptly to whether the traction rope 103 has broken under the action of the elastic component 3.

[0050] like Figure 1As shown, optionally, the device to be traction 4 is provided with a mounting base 41, and the traction mechanism 2 includes a positioning bracket 22 and a traction component 21. The position of the positioning bracket 22 is fixed relative to the fall arrestor 11, and the traction component 21 is movably mounted on the positioning bracket 22 and the mounting base 41. One end of the traction component 21 is connected to the fall arrestor 12, and the other end of the traction component 21 is configured to be connected to the traction rope 103. When the traction rope 103 pulls itself, the traction component 21 pulls the fall arrestor 12 to press against the fall arrestor 11 so that the fall arrestor 12 is in a guiding state. Specifically, when the traction rope 103 initially pulls the traction component 21, the traction component 21 moves on the mounting base 41 and the positioning bracket 22, and the traction anti-falling component 12 moves and eventually presses against the anti-falling seat 11, reaching the guiding state; since the anti-falling component 12 is pressed against the anti-falling seat 11 and is limited by the anti-falling seat 11, the traction component 21 connected to the anti-falling component 12 no longer moves relative to the positioning bracket 22 and the mounting frame, the traction rope 103 continues to pull upward, and the traction component 21 lifts the equipment 4 to be pulled, while the guiding device moves freely relative to the guide rope 102 to provide guidance for the equipment 4 to be pulled. The traction component 21 and the anti-fall component 12 cooperate with each other to ensure that the guiding device is in the guiding state when the traction rope 103 is normal. While the traction component 21 provides traction force, the cross-sectional area of ​​the execution through hole 101 remains unchanged. When the traction rope 103 breaks, the force of the traction component 21 on the anti-fall component 12 disappears, which makes it easier for the elastic component 3 to drive the anti-fall component 12 and put it in the anti-fall state.

[0051] See also Figure 1As shown, in this embodiment, the traction assembly 21 includes a first traction member 211 and a second traction member 212. The first traction member 211 is slidably disposed on the mounting base 41, and the second traction member 212 is movably disposed on the positioning bracket 22. The first traction member 211 is configured to be connected to the traction rope 103. One end of the second traction member 212 is connected to the first traction member 211, and the other end is connected to the anti-fall member 12. When the traction rope 103 pulls itself, the first traction member 211 slides and drives the second traction member 212 to pull the anti-fall member 12 against the anti-fall base 11. That is, by sliding the first traction member 211 on the mounting base 41, the second traction member 212 moves on the positioning bracket 22, thereby driving the anti-fall member 12 to press against the anti-fall base 11, reaching the guiding state. The first traction member 211 is slidably configured with a clearly defined movement trajectory. When the traction rope 103 acts on the first traction member 211, it moves along a preset trajectory, thereby driving the second traction member 212 to move along the defined trajectory. This improves the consistency of the movement of the traction assembly 21 and enhances the consistency of the fall arrestor 12 in switching between the guiding state and the fall arrestor state. In other embodiments, the traction assembly 21 may also include only the second traction member 212, with the traction rope 103 connected to the second traction member 212. This achieves the same effect of tractioning the fall arrestor 12 to move and press against the fall arrestor seat 11.

[0052] See also Figure 1Specifically, the second traction member 212 includes a traction flexible shaft 2121, and the positioning bracket 22 includes a first positioning frame 221 and a second positioning frame 222. The first positioning frame 221 is fixed on the device to be traction 4 and is located below the first traction member 211. One end of the traction flexible shaft 2121 is connected to the first traction member 211 by a fastening screw 2113. It extends downward from the first traction member 211 along the sliding direction of the first traction member 211 and passes through the first positioning frame 221. Then, the traction flexible shaft 2121 bends and turns, extends and passes through the second positioning frame 222 on the fall arrestor 11. Finally, the traction flexible shaft 2121 extends from the second positioning frame 222 along the groove depth direction parallel to the guide groove 111 and connects to the fall arrestor 12. The traction flexible shaft 2121 can be bent freely, which is convenient for transmission over long distances in spaces that are not on the same axis, and its small size saves layout space. The arrangement of the first positioning frame 221 defines the movement trajectory of the traction flexible shaft 2121 when it is pulled, thereby aligning the sliding trajectory of the first traction member 211 with the extension direction of the traction rope for efficient transmission of driving force. The arrangement of the second positioning frame 222 defines the movement trajectory of the traction flexible shaft 2121 when it is pulled, thereby providing the anti-fall member 12 with driving force to move along the groove depth direction of the guide groove 111, reducing the cross-sectional area of ​​the through hole. Optionally, the second traction member 212 also includes a sleeve 2122, which is sleeved on the traction flexible shaft 2121 between the first positioning frame 221 and the second positioning frame 222, and is clamped to the device to be traction 4.

[0053] like Figure 2 As shown, the second positioning frame 222 is further provided with a second adjusting member 2221. The second adjusting member 2221 includes a second locking nut 22212 and a threaded cap 22211. The threaded cap 22211 is threadedly connected to the second positioning frame 222. The traction flexible shaft 2121 is fixedly inserted in the threaded cap 22211. When the threaded cap 22211 is rotated, it drives the traction flexible shaft 2121 to move, thereby tightening the traction flexible shaft 2121 between the second positioning frame 222 and the anti-fall device 12, so as to realize the sensitive transmission of the second traction device 212. The second locking nut 22212 is connected to the threaded cap 22211. The threaded cap 22211 is locked by the second locking nut 22212 to prevent the threaded cap 22211 from loosening during use, which would further affect the anti-fall or guiding state of the guiding device. In this embodiment, a positioning tube 2211 is provided on the first positioning frame 222. The positioning tube 2211 is embedded in the first positioning frame 221 and extends along the sliding direction of the first traction member 211. The traction flexible shaft 2121 passes through the positioning tube 2211, and the positioning tube 2211 guides and positions the traction flexible shaft 2121.

[0054] See also Figure 2Optionally, the actuator 1 further includes a limiting member 14, which is detachably mounted on the fall arrestor 12 and forms a threading hole with the fall arrestor 12. The second traction member 212 passes through the threading hole, and the end of the second traction member 212 away from the first traction member 211 is provided with a pressure head 21211 with a cross-sectional dimension larger than the threading hole. By disassembling and assembling the limiting member 14, the second traction member 212 with the pressure head 21211 can be conveniently limited in the threading hole, facilitating the connection between the second traction member 212 and the fall arrestor 12. In this embodiment, the limiting member 14 is bolted to the fall arrestor 12 to facilitate disassembly and assembly.

[0055] like Figure 1 and Figure 3 As shown, optionally, the first traction member 211 includes a traction connector 2112 and a traction support member 2111. The traction support member 2111 is slidably disposed on the mounting base 41 and connected to the second traction member 212. One end of the traction connector 2112 is disposed on the traction support member 2111. The mounting base 41 is provided with a clearance hole 4111. The other end of the traction connector 2112 passes through the clearance hole 4111 and is configured to be connected to the traction rope 103. Under the traction of the traction rope 103, the traction connector 2112 drives the traction support member 2111 to slide until it presses against the mounting base 41. Under the action of the traction rope 103, the traction support member 2111 presses against the mounting base 41. The traction rope 103 continues to pull, thus lifting the mounting base 41 through the traction support member 2111, thereby lifting the entire device 4 to be traction. The weight of the device to be traction 4 is mainly supported by the traction bearing 2111, reducing the load on the second traction member 212. The force of the second traction member 212 acting on the anti-fall member 12 only needs to overcome the elastic force of the elastic component 3 to drive the anti-fall member 12 to the guiding state.

[0056] In this embodiment, see Figure 1 and Figure 3 The traction device 4 includes a body 42 and a mounting base 41. The mounting base 41 includes a fixed plate 411 and multiple connecting columns 412. One end of each connecting column 412 is mounted on the body 42, and the other end extends upward and is fixedly connected to the fixed plate 411. The traction bearing member 2111 is slidably mounted below the fixed plate 411. A clearance hole 4111 is provided in the center of the fixed plate 411. The traction bearing member 2112 extends through the clearance hole 4111 to the top of the fixed plate 411 and is connected to the traction rope 103. The end of the traction bearing member 2112 connected to the traction rope 103 is a lifting lug. The size of the lifting lug is larger than the size of the clearance hole 4111. When the lifting lug abuts against the upper surface of the fixed plate 411, the distance between the traction bearing member 2111 and the fixed plate 411 reaches its maximum, thereby limiting the maximum stroke of the traction bearing member 2111.

[0057] See also Figure 1 and Figure 3To enable the sliding of the fixed plate 411 and the traction bearing 2111, the traction mechanism 2 further includes multiple sliding components 23. Specifically, each sliding component 23 includes a guide sleeve 232 and a sliding rod 231. The sliding rod 231 is fixed to the traction bearing 2111, and the guide sleeve 232 is fixed to the fixed plate 411. The sliding rod 231 slides through the guide sleeve 232 to guide the sliding of the traction bearing 2111 relative to the fixed plate 411. In this embodiment, four sliding components 23 are provided, arranged in a rectangular pattern on the rectangular fixed plate 411.

[0058] like Figure 2 and Figure 4 As shown, optionally, the fall arrestor 11 includes a first clamping plate 112 and a second clamping plate 113. The first clamping plate 112 includes a connecting portion 1121 and a spacer portion 1122. The spacer portion 1122 is parallel to the second clamping plate 113. The connecting portion 1121 connects the spacer portion 1122 and the second clamping plate 113, and together with the spacer portion 1122 and the second clamping plate 113, forms a guide groove 111. The fall arrestor 12, together with the spacer portion 1122, the second clamping plate 113, and the connecting portion 1121, forms an execution through hole 101. Through the guide groove 111 formed by the first clamping plate 112 and the second clamping plate 113, the guide groove 111 can easily obtain a smaller cross-sectional area to adapt to the cross-sectional area of ​​the guide rope 102, thereby improving the guiding accuracy.

[0059] See also Figure 2 and Figure 4 Optionally, the fall arrestor 12 includes a connected fall arrest actuator 121 and a fall arrest drive 122. The fall arrest actuator 121 is movably mounted on the fall arrest base 11. One end of the fall arrest actuator 121 away from the fall arrest drive 122 is inserted into the guide groove 111. The traction mechanism 2 is connected to the fall arrest drive 122. The fall arrest drive 122 can press against the fall arrest base 11 under the action of the traction mechanism 2, thereby expanding the cross-sectional area of ​​the execution through hole 101 of the fall arrest actuator 121 and releasing the guide rope 102. In other words, the fall arrest drive 122 is used to position the guiding state of the fall arrest actuator 121 and constrain the movement of the traction mechanism 2. The fall arrest actuator 121 is used to form the execution through hole 101 with the fall arrest base 11 and change the cross-sectional area of ​​the execution through hole 101. In this embodiment, the anti-fall actuator 121 is inserted into the guide groove 111 from the end of the spacer 1122 away from the connecting part 1121. The anti-fall drive 122 can press against the spacer 1122 under the action of the traction mechanism 2, so that the anti-fall actuator 121 and the connecting part 1121 maintain a large distance, thereby forming an actuator through hole 101 with a large cross-sectional area, which facilitates the sliding of the guide device along the guide rope 102.

[0060] Optionally, in this embodiment, the fall arrestor 121 is rotatably mounted on the fall arrestor seat 11, the traction mechanism 2 is connected to the fall arrestor drive 122 on one side of the rotation center of the fall arrestor 121, and the elastic component 3 is connected to the other side of the fall arrestor drive 122 on the other side of the rotation center of the fall arrestor 121. The fall arrestor drive 122 can drive the fall arrestor 121 to rotate under the action of the elastic component 3, so that the fall arrestor 121 reduces the cross-sectional area of ​​the execution through hole 101 and clamps the guide rope 102. The elastic component 3 and the traction mechanism 2 generate opposite rotational torques on the fall arrest drive 122. When the traction rope 103 pulls the traction mechanism 2, the torque generated by the traction mechanism 2 is greater than the torque of the elastic component 3, which drives the fall arrest drive 122 to rotate the fall arrest actuator 121 to the guiding state. After the traction rope 103 breaks, the torque of the traction mechanism 2 disappears, and the elastic component 3 can easily drive the fall arrest drive 122 to rotate the fall arrest actuator 121 to the fall arrest state, clamping the guide rope 102. In other embodiments, the fall arrest actuator 121 can also be slidably disposed on the fall arrest seat 11, sliding along the depth direction of the guide groove 111, thereby reducing or increasing the cross-sectional area of ​​the execution through hole 101 to achieve guidance or fall arrest.

[0061] To facilitate the connection between the fall arrestor 12 and the traction assembly 21 and the elastic assembly 3, and to reduce stress concentration, the fall arrestor drive unit 122 is a fall arrestor drive plate, which extends from the fall arrestor actuator 121 to the side of the first clamping plate 112. The second traction member 212 with a pressure head 21211 is connected to the upper end of the fall arrestor drive unit 122, and the elastic assembly 3 is connected to the lower end of the fall arrestor drive unit 122. To enable the fall arrestor actuator 121 to rotate on the fall arrestor seat 11, in this embodiment, a rotating shaft 15 is fixedly installed on the first clamping plate 112 and the second clamping plate 113. A rotating hole is opened on the fall arrestor actuator 121, and a bushing 16 is fixedly installed in the rotating hole. The bushing 16 is rotatably sleeved on the rotating shaft 15.

[0062] like Figure 6 As shown, in this embodiment, the first clamping plate 112 has a protruding limiting protrusion 114 on its end face near the anti-fall drive part 122. After the anti-fall drive part 122 presses against the limiting protrusion 114, the anti-fall actuator 121 is in a guiding state. The anti-fall actuator 121 is parallel to the connecting part 1121, thereby forming an actuator through hole 101 with the same cross-sectional area in the vertical direction, which facilitates the actuator 1 to slide freely along the guide rope 102. Figure 7 and Figure 8 As shown, under the action of the elastic component 3, the anti-fall actuator 121 rotates to the anti-fall state. The anti-fall actuator 121 rotates so that its lower end moves closer to the connecting part 1121, so that the cross-sectional area of ​​the lower end of the actuator through hole 101 is reduced and becomes smaller than the cross-sectional area of ​​the guide rope 102, thereby achieving the goal of holding the guide rope 102 tightly.

[0063] like Figure 2As shown, optionally, the elastic component 3 includes a support base 31, an adjusting member 33, and an elastic member 32. The support base 31 is disposed on the fall arrestor 11, the adjusting member 33 is movably disposed on the support base 31, and the elastic member 32 is disposed on the adjusting member 33 and connected to the fall arrestor 12. The adjustment member 33 can change the elastic force exerted by the elastic member 32 on the fall arrestor 12 by moving it. By adjusting the force exerted by the elastic member 32 on the fall arrestor 12 by the adjusting member 33, the frictional force between the fall arrestor 12 and the guide rope 102 when the fall arrestor is in the fall arrestor state is adjusted, thereby changing the deceleration descent stroke. In this embodiment, one end of the support base 31 is disposed on the fall arrestor 11, and the other end extends to the side of the fall arrestor drive 122 away from the guide groove 111. The elastic member 32 is disposed on the end of the support base 31 away from the fall arrestor 11 and presses against the fall arrestor drive 122, providing rotational torque to the fall arrestor drive 122. Exemplarily, the elastic member 32 is a compression spring.

[0064] In this embodiment, the adjusting member 33 includes an adjusting bolt 331 and a first locking nut 332, such as Figure 3 and Figure 4 As shown, the adjusting bolt 331 is threaded onto the support base 31. One end of the elastic element 32 is installed in the groove of the adjusting bolt 331, and the other end presses against the fall arrestor 121. Rotating the adjusting bolt 331 adjusts the distance between it and the fall arrestor 121, thereby adjusting the elastic force of the elastic element 32. After the adjusting bolt 331 is adjusted, it is connected to the first locking nut 332 to lock the adjusting bolt 331 onto the support base 31, preventing the adjusting bolt 331 from loosening during use. In other embodiments, the elastic element 32 can also press against the adjusting bolt 331 at one end and be installed on the fall arrestor 121 at the other end, achieving the same effect.

[0065] Optionally, the actuator 1 further includes an extension 13, which is configured to be mounted on the device to be traction 4. A fall arrestor 11 is located at the end of the extension 13 furthest from the device to be traction 4. Specifically, the extension 13 includes a connecting seat 131 and an extension column 132. The connecting seat 131 is connected to the device to be traction 4, and the extension column 132 connects the connecting seat 131 and the fall arrestor 11, extending the fall arrestor 11 a certain distance away from the device to be traction 4. In this embodiment, the extension column 132 extends horizontally to the side of the device to be traction 4, thereby maintaining a certain distance between the guide rope 102 passing through the actuator through-hole 101 and the device to be traction 4, preventing interference between the guide rope 102 and the device to be traction 4. Maintaining a certain distance facilitates the use of guide ropes with wider spacing and also better ensures the smooth operation of the traction device 4.

[0066] This embodiment also provides a wellbore measuring device, which includes a traction rope 103, a guide rope 102, a device to be traction 4, and the aforementioned guiding device. The anti-fall seat 11 of the guiding device is mounted on the device to be traction 4. The traction rope 103 is connected to the traction mechanism 2 of the guiding device, and the guide rope 102 passes through the execution through-hole 101 of the guiding device. By providing a guiding device on the device to be traction 4, the device to be traction 4 is prevented from falling when the traction rope 103 breaks.

[0067] Specifically, there are two guide ropes 102, extending along the depth direction of the shaft and spaced apart horizontally. Except for the first traction member 211, each other component of the guiding device has two parts. An actuator 1 is fixed to each side of the device to be pulled 4 in the horizontal direction. Each actuator 1 cooperates with the corresponding guide rope 102. Each elastic component 3 is mounted on the corresponding actuator 1. Each second traction member 212 is connected to the anti-fall component 12 on the corresponding actuator 1. The first traction member 211 is slidably mounted on the mounting base 41, and both second traction members 212 are connected to the first traction member 211. The first traction member 211 is connected to the traction rope 103. When the traction rope 103 pulls the first traction member 211, both actuators 1 switch to the guiding state. When the traction rope 103 breaks, both actuators 1 switch to the anti-fall state. The first traction member 211 connects each second traction member 212, enabling all actuators 1 to operate synchronously.

[0068] like Figure 6 As shown, when using the guiding device in this embodiment, the connecting seat 131 is fixed on the traction device 4 on the support surface, the traction connector 2112 is connected to the traction rope 103, and the guide rope 102 is passed through the execution through hole 101. The traction machine is started, and the traction rope 103 begins to pull upward. The torque transmitted by the traction rope 103 to the anti-fall drive part 122 through the traction connector 2112, the traction bearing 2111, and the second traction member 212 is greater than the torque of the elastic member 32 acting on the anti-fall drive part 122. The traction connector 2112 pulls the traction bearing 2111 upward, and the traction bearing 2111 slides upward relative to the fixed plate 411, and pulls the second traction member 212 to press the anti-fall drive part 122 against the limiting protrusion 114, so that the anti-fall execution part 121 rotates to the guiding state. At the same time, the traction bearing 2111 presses against the lower end face of the fixed plate 411.

[0069] See also Figure 6As shown, to lift the device 4 to be pulled away from the support surface, the force on the traction rope 103 needs to overcome not only the force of the elastic element 32, but also the weight of the device 4 to be pulled and the guiding device. The traction connector 2112 pulls the traction bearing 2111 upward. The traction bearing 2111 is fixed relative to the fixed plate 411. Pulling the fixed plate 411 upward lifts the device 4 to be pulled away from the support surface, while the traction bearing 2111 always presses against the fixed plate 411, thus keeping the anti-fall actuator 121 in a guiding state, achieving guidance. When the device 4 to be pulled is lifted and moves at a constant speed in the air or stops, its force relationship is as follows:

[0070] F 曳1 =F 控1 +Mg

[0071] F 控1 =F 凸1 +F 弹1

[0072] Among them, F 曳1 F is the traction force exerted by the traction rope 103 on the traction connector 2112. 控1 Mg is the pulling force of the second traction component 212 acting on the fall arrest drive unit 122, Mg is the weight of the guide device and the equipment to be towed 4 as a whole, and F is the tensile force of the second traction component 212 acting on the fall arrest drive unit 122. 凸1 To limit the supporting force of the protrusion 114 on the fall arrestor drive unit 122, F 弹1 The elastic force of the elastic element 32 acting on the fall arrest drive unit 122.

[0073] like Figure 7 As shown, when the traction rope 103 breaks, the force exerted by the traction rope 103 on the traction connector 2112 disappears. The torque exerted by the traction bearing 2111 on the anti-fall drive 122 through the second traction member 212 is less than the torque exerted by the elastic member 32 on the anti-fall drive 122. Under the action of the elastic member 32, the anti-fall drive 122 moves away from the limiting protrusion 114. The anti-fall drive 122 pulls the traction bearing 2111 away from the fixed plate 411 through the second traction member 212. At the same time, the anti-fall drive 122 drives the anti-fall actuator 121 to rotate to the anti-fall state and tightens the guide rope 102.

[0074] like Figure 8 As shown, when the guide rope 102 is held tightly, the line of friction is eccentrically separated from the center of gravity of the guide device and the device to be pulled 4. Under the action of gravity, the guide device and the device to be pulled 4 tilt to the side and rotate around the point of contact between the anti-fall actuator 121 and the guide rope 102. The specific force relationship is as follows:

[0075] F 曳2 =0,F 控2 =0,F 凸2 =0

[0076] F 摩(θ) =F 张 ·sin(θ)·μ

[0077] F 摩2 =F 弹2 ·μ

[0078] F 摩 =F 摩(θ) +F 弹摩 =F 张 ·sin(θ)·μ+F 弹2 ·μ

[0079] Among them, F 曳2 F is the traction force exerted by the traction rope 103 on the traction connector 2112. 控2 F is the pulling force exerted by the second traction member 212 on the fall arrestor drive unit 122. 凸2 To limit the supporting force of the protrusion 114 on the fall arrestor drive unit 122, F 张 For the tension of guide rope 102, F 摩(θ) For F 张 Applying frictional force ) θ is the tilt angle of the traction device 4 relative to the vertical direction, μ is the coefficient of friction between the guide rope 102 and the actuator 1, and F 弹2 For the actuator 1 under the pressure of guide rope 102, F 摩2 For F 弹2 The applied frictional force, F 摩 The total friction force between the actuator 1 and the guide rope 102.

[0080] In the initial stage of the descent, F 摩2 <Mg, the traction device 4 will accelerate its descent, but as the tilt angle θ of the traction device 4 increases during the descent, the tension F of the guide rope 102 will decrease. 张 The applied frictional force F 摩(θ) F gradually increases from 0 摩 ·cos(θ) eventually becomes greater than gravity Mg, and the acceleration of the traction device 4 becomes deceleration until the falling speed is 0, at which point the traction device 4 stops falling.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A guide device, characterized in that Be configured to connect with the traction rope (103), including: The actuator (1) includes the anti-falling seat (11) and the anti-falling piece (12), the anti-falling seat (11) is configured to be arranged on the equipment to be dragged (4), the anti-falling piece (12) is movably arranged on the anti-falling seat (11), the anti-falling seat (11) is provided with a guide groove (111), the guide groove (111) penetrates along the length direction of itself, the anti-falling piece (12) is inserted into the guide groove (111) and forms a circumferentially closed execution through hole (101) with the guide groove (111), the execution through hole (101) is configured to penetrate the guide rope (102) provided with a guide rope (102); The elastic component (3) is connected with the anti-falling piece (12), the elastic component (3) is used to drive the anti-falling piece (12) to switch from the guide state to the anti-falling state when the traction rope (103) is broken, in the anti-falling state, the anti-falling piece (12) reduces the cross-sectional area of the execution through hole (101), and the anti-falling piece (12) and the anti-falling seat (11) can clamp the guide rope (102); The traction mechanism (2) is configured to connect with the traction rope (103), the traction mechanism (2) is connected with the anti-falling piece (12), and the traction mechanism (2) is used to drive the anti-falling piece (12) to be in the guide state when the traction rope (103) drags itself, in the guide state, the anti-falling piece (12) expands the cross-sectional area of the execution through hole (101) to loosen the guide rope (102); The anti-falling piece (12) includes the anti-falling execution part (121) and the anti-falling driving part (122), the anti-falling execution part (121) is movably arranged on the anti-falling seat (11), one end of the anti-falling execution part (121) away from the anti-falling driving part (122) is inserted into the guide groove (111), the traction mechanism (2) is connected with the anti-falling driving part (122), and the anti-falling driving part (122) can be pressed on the anti-falling seat (11) under the action of the traction mechanism (2) to make the anti-falling execution part (121) expand the cross-sectional area of the execution through hole (101) and loosen the guide rope (102); The anti-falling execution part (121) is rotatably arranged on the anti-falling seat (11), the traction mechanism (2) is connected to one side of the anti-falling driving part (122) located on the rotation center of the anti-falling execution part (121), the elastic component (3) is connected to the other side of the anti-falling driving part (122) located on the rotation center of the anti-falling execution part (121), and the anti-falling driving part (122) can drive the anti-falling execution part (121) to rotate under the action of the elastic component (3) to make the anti-falling execution part (121) reduce the cross-sectional area of the execution through hole (101) and clamp the guide rope (102); When the guide rope (102) is embraced, the friction force line has an eccentric distance with the center of gravity line of the guide device and the to-be-hauled device (4), and the whole of the guide device and the to-be-hauled device (4) tilts under the action of gravity and rotates around the contact point of the anti-falling execution part (121) and the guide rope (102).

2. The guide device of claim 1, wherein, The to-be-hauled device (4) is provided with a mounting seat (41), the traction mechanism (2) comprises a positioning support (22) and a traction assembly (21), the position of the positioning support (22) is fixed compared with the anti-falling seat (11), the traction assembly (21) is movably arranged on the positioning support (22) and the mounting seat (41), one end of the traction assembly (21) is connected with the anti-falling part (12), and the other end of the traction assembly (21) is configured to be connected with the hauling rope (103). When the hauling rope (103) hauls itself, the traction assembly (21) hauls the anti-falling part (12) to press against the anti-falling seat (11), so that the anti-falling part (12) is in the guide state.

3. The guide device of claim 2, wherein, The traction assembly (21) comprises a first traction part (211) and a second traction part (212), the first traction part (211) is slidably arranged on the mounting seat (41), and the second traction part (212) is movably arranged on the positioning support (22). The first traction part (211) is configured to be connected with the hauling rope (103), one end of the second traction part (212) is connected with the first traction part (211), and the other end of the second traction part (212) is connected with the anti-falling part (12). When the hauling rope (103) hauls itself, the first traction part (211) slides and drives the second traction part (212) to pull the anti-falling part (12) to press against the anti-falling seat (11).

4. The guide of claim 3, wherein, The first traction part (211) comprises a hauling connecting part (2112) and a hauling bearing part (2111), the hauling bearing part (2111) is slidably arranged on the mounting seat (41) and connected with the second traction part (212), one end of the hauling connecting part (2112) is arranged on the hauling bearing part (2111), the mounting seat (41) is provided with an avoiding hole (4111), the other end of the hauling connecting part (2112) penetrates through the avoiding hole (4111) and is configured to be connected with the hauling rope (103), and the hauling connecting part (2112) drives the hauling bearing part (2111) to slide under the traction of the hauling rope (103) until the hauling bearing part (2111) is pressed against the mounting seat (41).

5. The guide of claim 3, wherein, The execution mechanism (1) further comprises a limiting part (14), the limiting part (14) is detachably arranged on the anti-falling part (12) and surrounds a threading hole with the anti-falling part (12), the second traction part (212) penetrates through the threading hole, and the end of the second traction part (212) away from the first traction part (211) is provided with a pressure head (21211) with a cross-sectional size greater than the threading hole.

6. The guide of claim 1, wherein, The execution mechanism (1) further comprises an extension member (13) configured to be arranged on the device to be hauled (4), and the anti-falling seat (11) is arranged at one end of the extension member (13) away from the device to be hauled (4).

7. The guide of claim 1, wherein, The elastic assembly (3) comprises a supporting seat (31), an elastic member (32) and an adjusting member (33), the supporting seat (31) is arranged on the anti-falling seat (11), the adjusting member (33) is movably arranged on the supporting seat (31), the elastic member (32) is arranged on the adjusting member (33) and is connected to the anti-falling member (12), and the adjusting member (33) is movable to change the elastic force of the elastic member (32) acting on the anti-falling member (12).

8. A shaft measuring device, characterized in that The device comprises a hauling rope (103), a guide rope (102), a device to be hauled (4) and the guide device according to any one of claims 1-7, the anti-falling seat (11) of the guide device is arranged on the device to be hauled (4), the hauling rope (103) is connected to the traction mechanism (2) of the guide device, and the guide rope (102) is arranged through the execution through hole (101) of the guide device.

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