Auxiliary winch pulley mechanism and drilling apparatus

Abstract

The embodiment of the application provides a kind of auxiliary winch pulley mechanism and drilling equipment, it is related to engineering machinery technical field.The auxiliary winch pulley mechanism includes: auxiliary winch pulley frame, auxiliary winch pulley frame is used to articulate with the main winch pulley frame of drilling equipment, to rotate relative to main winch pulley frame;Limiting mechanism, limiting mechanism is connected between main winch pulley frame and auxiliary winch pulley frame, limiting mechanism is used to limit the rotation range of auxiliary winch pulley frame, to prevent auxiliary winch pulley frame and main winch pulley frame collision.The auxiliary winch pulley mechanism and drilling equipment, can prevent auxiliary winch pulley frame from being damaged when rotating and colliding with main winch pulley frame, thereby indirectly prolong the service life of main winch pulley frame and auxiliary winch pulley frame.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a secondary winch pulley mechanism and drilling equipment. Background Technology

[0002] Rotary drilling rigs are drilling equipment used for hole-forming operations and are widely used in the pile foundation construction of large infrastructure projects such as bridges, high-rise buildings, wind power foundations, high-speed railways, and municipal engineering.

[0003] In related technologies, rotary drilling rigs include a main winch pulley frame and an auxiliary winch pulley frame. The main winch pulley frame is connected to the mast of the rotary drilling rig and is responsible for controlling the raising and lowering of the drill rod and drilling operations. The auxiliary winch pulley frame is hinged to the main winch pulley frame and is responsible for lowering and positioning the reinforcing cage. By driving the auxiliary winch pulley frame to rotate relative to the main winch pulley frame, the working position of the auxiliary winch pulley frame can be adjusted to accommodate reinforcing cages of different diameters.

[0004] However, during the rotation and adjustment of the auxiliary winch pulley frame, it may collide with the main winch pulley frame, causing deformation or damage to both the main and auxiliary winch pulley frames, indirectly shortening their service life. Utility Model Content

[0005] This application provides a secondary winch pulley mechanism and drilling equipment to solve the technical problem in the related art where the secondary winch pulley frame collides with the main winch pulley frame during the rotation adjustment process, resulting in deformation or damage to both the main and secondary winch pulley frames.

[0006] In a first aspect, embodiments of this application provide a secondary winch pulley mechanism, comprising:

[0007] A secondary winch pulley frame is used to be hinged to the main winch pulley frame of the drilling equipment so as to rotate relative to the main winch pulley frame;

[0008] A limiting mechanism is connected between the main winch pulley frame and the auxiliary winch pulley frame. The limiting mechanism is used to limit the rotation range of the auxiliary winch pulley frame to prevent the auxiliary winch pulley frame from colliding with the main winch pulley frame.

[0009] In some embodiments, the limiting mechanism includes a telescopic member and a limiting member. The telescopic member is connected between the main winch pulley frame and the auxiliary winch pulley frame. The telescopic member is used to extend and retract when the auxiliary winch pulley frame rotates relative to the main winch pulley frame. The limiting member is connected to the telescopic member and is used to limit the extension and retraction range of the telescopic member to prevent the auxiliary winch pulley frame from colliding with the main winch pulley frame.

[0010] In some embodiments, the telescopic member includes a fixed rod and a plug-in rod. The fixed rod is connected to the main winch pulley frame, and the plug-in rod is connected to the auxiliary winch pulley frame. The plug-in rod is used to insert into and slide within the fixed rod.

[0011] In some embodiments, the fixing rod is hinged to the main winch pulley frame, and the plug rod is hinged to the auxiliary winch pulley frame.

[0012] In some embodiments, the limiting member includes a limiting pin, and the plug rod has a strip-shaped hole along its length. The limiting pin passes through the fixed rod and is slidably connected in the strip-shaped hole to limit the movement of the plug rod within the fixed rod.

[0013] In some embodiments, a fixing mechanism is further included, which is connected to the fixing rod and is used to fix the plug rod to any position within the fixing rod.

[0014] In some embodiments, the fixing mechanism includes a fixing pin, a plurality of first fixing holes are provided on the fixing rod along the length direction of the fixing rod, a second fixing hole is provided on the plug-in rod, and the fixing pin is used to pass through any one of the first fixing holes and through the second fixing hole to fix the plug-in rod to any position inside the fixing rod.

[0015] In some embodiments, the cross-sections of both the fixing rod and the plug-in rod are n-sided, where 4 ≤ n ≤ 8.

[0016] In some embodiments, at least one guide pulley is further included, the guide pulley being connected to the main winch pulley frame, the guide pulley being used to guide the wire rope to the auxiliary winch pulley frame.

[0017] This application embodiment also provides a drilling device, including a main winch pulley frame and the auxiliary winch pulley mechanism, wherein the auxiliary winch pulley frame of the auxiliary winch pulley mechanism is hinged to the main winch pulley frame, and the limiting mechanism of the auxiliary winch pulley mechanism is connected between the main winch pulley frame and the auxiliary winch pulley frame.

[0018] This application provides a secondary winch pulley mechanism and drilling equipment. The secondary winch pulley mechanism provided in this application, by adopting a limiting mechanism, restricts the rotation range of the secondary winch pulley frame, thereby preventing excessive rotation of the secondary winch pulley frame and rigid collision with the main winch pulley frame. This protects the structural integrity of the main and secondary winch pulley frames and prevents deformation or cracking caused by collisions, indirectly extending the service life of the main and secondary winch pulley frames. Operators do not need to worry about interference and damage to the main and secondary winch pulley frames due to adjustment errors, thus improving the safety and reliability of the operation of the secondary winch pulley frame. The limiting mechanism also ensures that the wire rope on the secondary winch pulley frame is within a preset safe working area, improving the safety of the rebar cage during hoisting. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 A structural schematic diagram of the auxiliary winch pulley mechanism in its assembled state provided in this application;

[0021] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0022] Figure 3 for Figure 2 Exploded view of the fixed rod and the plug rod;

[0023] Figure 4 A structural schematic diagram of the main winch pulley frame of the auxiliary winch pulley mechanism provided in this application;

[0024] Figure 5 A schematic diagram of the structure of the secondary winch pulley frame for the secondary winch pulley mechanism provided in this application;

[0025] Figure 6 A cross-sectional structural diagram of the auxiliary winch pulley mechanism in its assembled state provided in this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Secondary winch pulley frame; 110. Secondary pulley; 120. Clearance section;

[0028] 200. Limiting mechanism;

[0029] 210. Telescopic component; 211. Fixed rod; 212. Connecting rod;

[0030] 213. Strip hole; 214. First fixing hole; 215. Second fixing hole;

[0031] 220. Limiting components;

[0032] 300. Fixed mechanism;

[0033] 400. Guide pulley; 410. Connecting plate; 420. Stop bar; 430. Pressure plate;

[0034] 500. Main winch pulley frame; 510. Main pulley; 520. Mounting base; 530. Pin; 540. Fixing plate.

[0035] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0037] In related technologies, rotary drilling rigs include a main winch pulley frame and an auxiliary winch pulley frame. The main winch pulley frame is fixedly installed on the mast of the rotary drilling rig and is the core component that drives the drill rod to perform drilling operations. It is responsible for achieving precise lifting and lowering of the drill bit and drilling pressurization. The auxiliary winch pulley frame is connected to the side of the main winch pulley frame by a hinge. Its function is to guide the auxiliary winch wire rope to complete the hoisting, vertical lowering and positioning of the reinforcing cage in the hole. The auxiliary winch pulley frame rotates relative to the main winch pulley frame around the hinge point, thereby flexibly adjusting its suspension position and rope direction to meet the hoisting needs of reinforcing cages of different diameters and weights during construction.

[0038] However, during this adjustment process, the auxiliary winch pulley frame is very prone to rigid collision with the adjacent main winch pulley frame. This direct collision can not only cause plastic deformation or structural cracks at the contact points, but may also damage the precision pulley bearings and wire rope guide grooves. Long-term or severe impacts will affect the structural strength and operating accuracy of the entire winch system, thereby shortening the service life of the main and auxiliary winch pulley frames, and may cause safety hazards such as wire rope jumping out of grooves and component breakage during construction.

[0039] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0040] Combination Figure 1 , Figure 2 and Figure 3 This application provides a secondary winch pulley mechanism, including a secondary winch pulley frame 100 and a limiting mechanism 200. The secondary winch pulley frame 100 is hinged to the main winch pulley frame 500 of the drilling equipment to rotate relative to the main winch pulley frame 500. The limiting mechanism 200 is connected between the main winch pulley frame 500 and the secondary winch pulley frame 100 and is used to limit the rotation range of the secondary winch pulley frame 100 to prevent the secondary winch pulley frame 100 from colliding with the main winch pulley frame 500.

[0041] By adopting the above technical solution, the limiting mechanism 200 can limit the rotation range of the auxiliary winch pulley frame 100, thereby preventing the auxiliary winch pulley frame 100 from rotating excessively and rigidly colliding with the main winch pulley frame 500. This protects the structural integrity of the main winch pulley frame 500 and the auxiliary winch pulley frame 100, prevents deformation or cracking of the main winch pulley frame 500 and the auxiliary winch pulley frame 100 due to collision, and indirectly extends the service life of the main winch pulley frame 500 and the auxiliary winch pulley frame 100. Operators do not need to worry about interference between the main winch pulley frame 500 and the auxiliary winch pulley frame 100 caused by adjustment errors, thus improving the safety and reliability of the operation of the auxiliary winch pulley frame 100. The limiting mechanism 200 can also ensure that the wire rope on the auxiliary winch pulley frame 100 is within the preset safe working area, improving the safety of the rebar cage during hoisting.

[0042] Combination Figure 1 and Figure 4 In this embodiment, main pulleys 510 are rotatably connected on the main winch pulley frame 500 and on both sides of the main winch pulley frame 500. The main winch wire rope drives the drill rod to perform drilling operations through the main pulleys 510. A mounting base 520 is provided on one side of the main winch pulley frame 500.

[0043] Combination Figure 1 and Figure 5 In this embodiment, the auxiliary winch pulley frame 100 is elongated, with an auxiliary pulley 110 rotatably connected to one end of the auxiliary winch pulley frame 100, and the other end of the auxiliary winch pulley frame 100 hinged to the mounting base 520. The auxiliary winch pulley frame 100 is hinged to the main winch pulley frame 500 through the mounting base 520, and the rotation direction of the auxiliary winch pulley frame 100 is set in the horizontal direction.

[0044] In some embodiments, when the main winch pulley frame 500 is rotatably connected to the top of the mast, the limiting mechanism 200 can also be used to limit the rotation range of the auxiliary winch pulley frame 100 to prevent the auxiliary winch pulley frame 100 from colliding with the main winch pulley frame 500.

[0045] Combination Figure 1 , Figure 2 and Figure 3 The limiting mechanism 200 includes a telescopic member 210 and a limiting member 220. The telescopic member 210 is connected between the main winch pulley frame 500 and the auxiliary winch pulley frame 100. The telescopic member 210 is used to extend and retract when the auxiliary winch pulley frame 100 rotates relative to the main winch pulley frame 500. The limiting member 220 is connected to the telescopic member 210 and is used to limit the extension and retraction range of the telescopic member 210 to prevent the auxiliary winch pulley frame 100 from colliding with the main winch pulley frame 500.

[0046] By adopting the above technical solution, when the auxiliary winch pulley frame 100 rotates, the auxiliary winch pulley frame 100 can drive the telescopic member 210 to extend and retract, thereby enabling the telescopic member 210 to guide the rotation of the auxiliary winch pulley frame 100 and prevent positional deviation between the auxiliary winch pulley frame 100 and the main winch pulley frame 500; when the auxiliary winch pulley frame 100 drives the telescopic member 210 to extend and retract, the limiting member 220 can limit the extension and retraction range of the telescopic member 210, thereby indirectly limiting the movement range of the auxiliary winch pulley frame 100 through the telescopic member 210, thereby preventing the auxiliary winch pulley frame 100 from colliding with the main winch pulley frame 500.

[0047] Combination Figure 1 , Figure 2 and Figure 3 The telescopic component 210 includes a fixed rod 211 and a plug-in rod 212. The fixed rod 211 is connected to the main winch pulley frame 500, and the plug-in rod 212 is connected to the auxiliary winch pulley frame 100. The plug-in rod 212 is used to plug in and slide within the fixed rod 211.

[0048] In this embodiment, a set of fixing rod 211 and plug-in rod 212 is provided; in other embodiments, multiple sets of fixing rod 211 and plug-in rod 212 can be provided, thereby limiting the rotation range of the auxiliary winch pulley frame 100 by multiple sets of fixing rod 211 and plug-in rod 212, and preventing the breakage of a single set of fixing rod 211 and plug-in rod 212.

[0049] By adopting the above technical solution, when the auxiliary winch pulley frame 100 rotates, the auxiliary winch pulley frame 100 can drive the plug rod 212 to move within the fixed rod 211, thereby guiding the rotation of the auxiliary winch pulley frame 100 by the fixed rod 211 and the plug rod 212, preventing positional deviation between the auxiliary winch pulley frame 100 and the main winch pulley frame 500.

[0050] Combination Figure 1 , Figure 2 and Figure 3 The fixed rod 211 is hinged to the main winch pulley frame 500, and the plug rod 212 is hinged to the auxiliary winch pulley frame 100.

[0051] In this embodiment, a first fixed seat is provided on the main winch pulley frame 500, and one end of the fixed rod 211 is located inside the first fixed seat. A first rotating shaft is simultaneously provided on the first fixed seat and the fixed rod 211, so that the fixed rod 211 is hinged to the main winch pulley frame 500 through the first fixed seat and the rotating shaft. A second insertion seat is provided on the auxiliary winch pulley frame 100, and one end of the insertion rod 212 is located inside the second insertion seat. A second rotating shaft is simultaneously provided on the second insertion seat and the insertion rod 212, so that the insertion rod 212 is hinged to the auxiliary winch pulley frame 100 through the second insertion seat and the rotating shaft. The first rotating shaft and the second rotating shaft are parallel and both are arranged in the vertical direction so that the fixed rod 211 and the insertion rod 212 can rotate in the horizontal direction.

[0052] By adopting the above technical solution, when the auxiliary winch pulley frame 100 rotates, it can drive the connecting rod 212 to move within the fixed rod 211. Because the auxiliary winch pulley frame 100 makes a circular motion around the hinge point with the main winch pulley frame 500, the connecting rod 212 and the fixed rod 211 can rotate on the auxiliary winch pulley frame 100 and the main winch pulley frame 500 respectively, thereby preventing the connecting rod 212 and the fixed rod 211 from affecting the rotation of the auxiliary winch pulley frame 100, indirectly increasing the rotation range of the auxiliary winch pulley frame 100, and further enabling the auxiliary winch pulley frame 100 to adapt to steel cages of different diameters.

[0053] In some embodiments, the fixed rod 211 is omnidirectionally connected to the main winch pulley frame 500, and the plug rod 212 is omnidirectionally connected to the auxiliary winch pulley frame 100, thereby preventing the plug rod 212 and the fixed rod 211 from affecting the rotation of the auxiliary winch pulley frame 100, and indirectly increasing the rotation range of the auxiliary winch pulley frame 100.

[0054] In some embodiments, the secondary winch pulley mechanism further includes a drive member, which is a cylinder, hydraulic cylinder or electric cylinder. The drive member is connected between the main winch pulley frame 500 and the secondary winch pulley frame 100. The drive member can drive the secondary winch pulley frame 100 to rotate, so that the secondary winch pulley frame 100 does not need to be manually driven to rotate.

[0055] Combination Figure 1 , Figure 2 and Figure 3The limiting member 220 includes a limiting pin. A strip hole 213 is provided on the plug rod 212 along the length direction of the plug rod 212. The limiting pin passes through the fixed rod 211 and is slidably connected in the strip hole 213 to limit the movement position of the plug rod 212 in the fixed rod 211.

[0056] By adopting the above technical solution, when the auxiliary winch pulley frame 100 rotates towards or away from the main winch pulley frame 500, the plug rod 212 can move within the fixed rod 211. The fixed rod 211 can drive the limiting pin to move within the slotted hole 213. When the limiting pin abuts against the end of the slotted hole 213 near the auxiliary winch pulley frame 100, the auxiliary winch pulley frame 100 is in its minimum closed position, and there is no collision between the auxiliary winch pulley frame 100 and the main winch pulley frame 500. When the limiting pin abuts against the end of the slotted hole 213 away from the main winch pulley frame 500, the auxiliary winch pulley frame 100 is in its maximum open position. By using the limiting pin and the slotted hole 213, the auxiliary winch pulley frame 100 can automatically stop moving when it moves to a position close to the main winch pulley frame 500, without the need for a drive device or control device to control the auxiliary winch pulley frame 100, thus saving costs.

[0057] Combination Figure 1 , Figure 2 and Figure 3 The auxiliary winch pulley mechanism also includes a fixing mechanism 300, which is connected to the fixing rod 211. The fixing mechanism 300 is used to fix the plug rod 212 to any position inside the fixing rod 211.

[0058] By adopting the above technical solution, when the auxiliary winch pulley frame 100 is used to hoist the steel cage, the plug-in rod 212 is fixed to the fixed rod 211 by the fixing mechanism 300, so that the plug-in rod 212 and the fixed rod 211 can fix the rotation of the auxiliary winch pulley frame 100 and prevent the auxiliary winch pulley frame 100 from moving when it is in working or transporting state, thereby indirectly improving the stability of the auxiliary winch pulley frame 100 during transport and operation.

[0059] Combination Figure 1 , Figure 2 and Figure 3 The fixing mechanism 300 includes a fixing pin. The fixing rod 211 has a plurality of first fixing holes 214 along its length. The plug rod 212 has a second fixing hole 215. The fixing pin is used to pass through any one of the first fixing holes 214 and the second fixing hole 215 to fix the plug rod 212 to any position inside the fixing rod 211.

[0060] By adopting the above technical solution, when the auxiliary winch pulley frame 100 moves to the designated position, the plug-in rod 212 can drive the second fixing hole 215 to be aligned with one of the first fixing holes 214 on the fixing rod 211. By inserting the fixing pin into the second fixing hole 215 and the corresponding first fixing hole 214, the fixing pin prevents the plug-in rod 212 from moving within the fixing rod 211, thereby fixing the plug-in rod 212 within the fixing rod 211. This fixes the auxiliary winch pulley frame 100 to any position after rotation. By using the fixing pin, the first fixing hole 214, and the second fixing hole 215, the fixing method is convenient and simple, improving the ease of fixing the plug-in rod 212.

[0061] In some embodiments, the fixing mechanism 300 can be replaced by an electric cylinder. By fixing the electric cylinder to the fixing rod 211, when the plug rod 212 moves to a designated position within the fixing rod 211, the driving end of the electric cylinder can extend into the first fixing hole 214 and the second fixing hole 215, thereby fixing the position of the plug rod 212 within the fixing rod 211, so that the auxiliary winch pulley frame 100 is fixed to the moved position.

[0062] Combination Figure 1 , Figure 2 and Figure 3 The cross-sections of both the fixed rod 211 and the plug rod 212 are n-sided, where 4≤n≤8.

[0063] In this embodiment, n is 4, and the cross-sections of the fixing rod 211 and the plug rod 212 are quadrilaterals.

[0064] By adopting the above technical solution, the strength of the fixed rod 211 and the plug rod 212 is indirectly improved by setting the cross-section of the fixed rod 211 and the plug rod 212 to a quadrilateral shape, thus preventing damage to the fixed rod 211 and the plug rod 212 when the limiting pin abuts against the end of the strip hole 213, thereby indirectly extending the service life of the limiting mechanism 200.

[0065] Combination Figure 1 , Figure 2 and Figure 6 The auxiliary winch pulley mechanism also includes at least one guide pulley 400, which is connected to the main winch pulley frame 500. The guide pulley 400 is used to guide the wire rope to the auxiliary winch pulley frame 100.

[0066] In this embodiment, a pin 530 is provided on the mounting base 520. The pin 530 is arranged in a vertical direction. A fixing plate 540 is sleeved on the pin 530 and fixedly connected to it. The fixing plate 540 is detachably connected to the bottom wall of the mounting base 520 by bolts. A clearance part 120 is provided on the auxiliary winch pulley frame 100. The clearance part 120 is used to accommodate the mounting base 520. The auxiliary winch pulley frame 100 is rotatably connected to the pin 530 by bearings.

[0067] In this embodiment, two guide pulleys 400 are provided. One guide pulley 400 is rotatably connected to the top end of the pin 530 and is rotatably connected to the top end of the pin 530 through a bearing. The other guide pulley 400 is rotatably connected to the mounting base 520 at a position away from the auxiliary winch pulley frame 100. The rotation axes of the guide pulley 400 and the auxiliary pulley 110 on the mounting base 520 are both perpendicular to the pin 530, and the rotation axis of the guide pulley 400 on the pin 530 coincides with the axis of the pin 530.

[0068] By adopting the above technical solution, when it is necessary to hoist the reinforcing cage, the wire rope is sequentially passed around the guide pulley 400 on the mounting base 520, the guide pulley 400 at the top of the pin 530, and the auxiliary pulley 110 to connect with the reinforcing cage. When the auxiliary winch pulley frame 100 rotates, the position of the wire rope on the two guide pulleys 400 will not change, so that the angle of entry of the wire rope will not change. This prevents the wire rope from being damaged due to friction between the auxiliary winch pulley frame 100 and other components when it rotates. When the auxiliary winch pulley frame 100 rotates, it can drive the wire rope between the auxiliary pulley 110 and the reinforcing cage to move, thereby adjusting the position of the reinforcing cage.

[0069] In this embodiment, a connecting plate 410 is provided between the guide pulley 400 at the top of the pin 530 and the auxiliary winch pulley frame 100. The connecting plate 410 is detachably connected to the auxiliary winch pulley frame 100 by bolts, and the connecting plate 410 is sleeved and rotatably connected to the pin 530. A stop bar 420 is provided on the connecting plate 410, and a pressure plate 430 is provided at the end of the stop bar 420 away from the connecting plate 410. The pressure plate 430 is connected to the pin 530, and a limiting space is formed between the stop bar 420 and the guide pulley 400 at the top of the pin 530. The limiting space is used for the wire rope to pass through, thereby preventing the wire rope from separating from the guide pulley 400.

[0070] In this embodiment, an oil injection cavity is provided at the top end of the pin 530. One end of the oil injection cavity passes through the pin 530, and the other end of the oil injection cavity is connected to the bearing of the guide pulley 400 at the top end of the pin 530. An oil nozzle is provided at the top end of the pin 530. By injecting lubricating oil into the oil nozzle, the lubricating oil flows along the oil injection cavity to the bearing of the guide pulley 400, which facilitates the lubrication of the bearing of the guide pulley 400 and indirectly extends the service life of the guide pulley 400.

[0071] This application embodiment also provides a drilling device, including a main winch pulley frame 500 and a secondary winch pulley mechanism of any of the above embodiments. The secondary winch pulley frame 100 of the secondary winch pulley mechanism is hinged to the main winch pulley frame 500, and the limiting mechanism 200 of the secondary winch pulley mechanism is connected between the main winch pulley frame 500 and the secondary winch pulley frame 100.

[0072] The specific structure of the secondary winch pulley mechanism has been described in detail in the above embodiments and will not be repeated here.

[0073] In this embodiment, the drilling equipment is a rotary drilling rig. In other embodiments, the drilling equipment can also be replaced by a rotary drilling rig, a bolt drilling rig, or a tunnel drilling rig, etc.

[0074] The drilling equipment provided in this application, by setting a secondary winch pulley mechanism, allows the secondary winch pulley frame 100 to rotate when its position needs to be adjusted. This rotation enables the insertion rod 212 to move within the fixed rod 211, allowing the insertion rod 212 and the fixed rod 211 to rotate on the secondary winch pulley frame 100 and the main winch pulley frame 500, respectively. The fixed rod 211 can drive the limiting pin to move within the slotted hole 213. When the limiting pin abuts against the end of the slotted hole 213 closest to the secondary winch pulley frame 100, the secondary winch pulley frame 100 is in its minimum closed position, and there is no collision between the secondary winch pulley frame 100 and the main winch pulley frame 500. When the limiting pin abuts against the end of the slotted hole 213 furthest from the main winch pulley frame 500, the secondary winch pulley frame 100 is in its minimum closed position. When the auxiliary winch pulley frame 100 is in its maximum open position and adjusted to the designated position, the plug-in rod 212 can drive the second fixing hole 215 to align with one of the first fixing holes 214 on the fixing rod 211. By inserting the fixing pin into the second fixing hole 215 and the corresponding first fixing hole 214, the fixing pin prevents the plug-in rod 212 from moving within the fixing rod 211, thereby fixing the plug-in rod 212 within the fixing rod 211. This fixes the auxiliary winch pulley frame 100 to any rotated position, protecting the structural integrity of the main winch pulley frame 500 and the auxiliary winch pulley frame 100, preventing deformation or cracking of the main winch pulley frame 500 and the auxiliary winch pulley frame 100 due to collisions, and indirectly extending the service life of the main winch pulley frame 500 and the auxiliary winch pulley frame 100.

[0075] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A secondary winch pulley mechanism, characterized in that, include: A secondary winch pulley frame (100) is used to be hinged to the main winch pulley frame (500) of the drilling equipment to rotate relative to the main winch pulley frame (500); A limiting mechanism (200) is connected between the main winch pulley frame (500) and the auxiliary winch pulley frame (100). The limiting mechanism (200) is used to limit the rotation range of the auxiliary winch pulley frame (100) to prevent the auxiliary winch pulley frame (100) from colliding with the main winch pulley frame (500).

2. The auxiliary winch pulley mechanism according to claim 1, characterized in that, The limiting mechanism (200) includes a telescopic member (210) and a limiting member (220). The telescopic member (210) is connected between the main winch pulley frame (500) and the auxiliary winch pulley frame (100). The telescopic member (210) is used to extend and retract when the auxiliary winch pulley frame (100) rotates relative to the main winch pulley frame (500). The limiting member (220) is connected to the telescopic member (210) and is used to limit the extension and retraction range of the telescopic member (210) to prevent the auxiliary winch pulley frame (100) from colliding with the main winch pulley frame (500).

3. The auxiliary winch pulley mechanism according to claim 2, characterized in that, The telescopic component (210) includes a fixed rod (211) and a plug-in rod (212). The fixed rod (211) is connected to the main winch pulley frame (500), and the plug-in rod (212) is connected to the auxiliary winch pulley frame (100). The plug-in rod (212) is used to plug into and slide within the fixed rod (211).

4. The auxiliary winch pulley mechanism according to claim 3, characterized in that, The fixed rod (211) is hinged to the main winch pulley frame (500), and the plug rod (212) is hinged to the auxiliary winch pulley frame (100).

5. The auxiliary winch pulley mechanism according to claim 3, characterized in that, The limiting member (220) includes a limiting pin. The plug rod (212) has a strip hole (213) along its length. The limiting pin passes through the fixed rod (211) and is slidably connected in the strip hole (213) to limit the movement of the plug rod (212) in the fixed rod (211).

6. The auxiliary winch pulley mechanism according to any one of claims 3-5, characterized in that, It also includes a fixing mechanism (300), which is connected to the fixing rod (211) and is used to fix the plug rod (212) to any position inside the fixing rod (211).

7. The auxiliary winch pulley mechanism according to claim 6, characterized in that, The fixing mechanism (300) includes a fixing pin. The fixing rod (211) has a plurality of first fixing holes (214) along its length. The plug rod (212) has a second fixing hole (215). The fixing pin is used to pass through any one of the first fixing holes (214) and the second fixing hole (215) to fix the plug rod (212) to any position inside the fixing rod (211).

8. The auxiliary winch pulley mechanism according to claim 7, characterized in that, The cross-sections of both the fixed rod (211) and the plug-in rod (212) are n-sided, where 4 ≤ n ≤ 8.

9. The auxiliary winch pulley mechanism according to any one of claims 1-5, characterized in that, It also includes at least one guide pulley (400) connected to the main winch pulley frame (500), the guide pulley (400) being used to guide the wire rope to the auxiliary winch pulley frame (100).

10. A drilling device, characterized in that, The system includes a main winch pulley frame (500) and a secondary winch pulley mechanism as described in any one of claims 1-9, wherein the secondary winch pulley frame (100) of the secondary winch pulley mechanism is hinged to the main winch pulley frame (500), and the limiting mechanism (200) of the secondary winch pulley mechanism is connected between the main winch pulley frame (500) and the secondary winch pulley frame (100).

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