Petroleum drilling derrick pulley anti-collision device
By designing limit components and fixing components on the derrick pulley, the shaking and wear problems caused by the lack of anti-collision devices of the derrick pulley are solved, and the safety and service life are improved.
Patent Information
- Application Number
- CN202421547909.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing derricks lack anti-collision devices, which causes heavy objects to shake violently or wear severely, which can easily cause safety accidents.
An anti-collision device including pulleys, mounting frames, positioning plates, movable plates, limiting components and fixing components is designed. Through the coordination of the limiting components and fixing components, the pulleys are prevented from rotating and improving load-bearing capacity, and reducing rope offset and wear.
Effectively slow down the movement speed of ropes, avoid rope breaking, improve the load-bearing capacity and service life of the device, and reduce the occurrence of safety accidents.
Smart Images
Figure CN223188844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling, in particular to an anti-collision device for a petroleum drilling derrick pulley. Background Art
[0002] Derrick pulleys play a vital role in oilfield drilling. They not only assist in lifting and moving heavy objects, but also change the direction of force. By using pulleys, only a small force is required to lift and move heavy objects, allowing workers to operate heavy objects more easily and reduce their labor intensity.
[0003] However, the existing derrick pulley does not have an anti-collision device, and the pulley is inevitably subject to collision and wear during use. Over a long period of time, it is easy for the heavy object to shake violently during use or fall due to severe wear and tear and unable to bear the original weight, causing a safety accident and inevitable damage. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the derrick pulley in the prior art does not have an anti-collision device, and the heavy objects are prone to shaking violently during use or falling due to severe wear and tear, which may cause safety accidents and inevitable damage. An anti-collision device for an oil drilling derrick pulley is proposed to solve the problem that the derrick pulley in the prior art does not have an anti-collision device, and the heavy objects may fall due to severe wear and tear during use, which may cause safety accidents and inevitable damage.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] An anti-collision device for a petroleum drilling derrick pulley includes a pulley and a mounting frame. The mounting frame is mounted on both sides of the pulley via a mounting rod. Positioning plates are fixedly connected to both ends of the pulley. Two movable plates are movably mounted on the pulley near the two positioning plates. A limiting assembly for stopping the rotation of the pulley is provided between the movable plate and the mounting frame. A fixing assembly for installing a fixed pulley is provided on the mounting rod near the mounting frame.
[0007] Preferably, the limit assembly includes a mounting ring movably mounted on the mounting rod, a movable rod fixedly mounted on the movable plate and a gear disk mounted on the mounting rod, an L-shaped plate is mounted on one side of the mounting ring, a limit rod is movably mounted on the L-shaped plate through a slot, tooth blocks and wedge blocks adapted to the teeth of the gear disk are respectively mounted on both sides of the limit rod, a limit spring is sleeved on the limit rod; the other end of the movable rod is movably mounted on the movable plate through a movable slot.
[0008] Preferably, the fixing assembly includes a fastening screw, a fixing ring installed on one side of the mounting frame, and a fixing round table installed at the end of the mounting rod. The mounting rod and the fixing round table are movably installed in the fixing ring. The fastening screw is installed in the fixing ring through a limiting groove opened on the fixing ring and is clamped in front of the fixing round table.
[0009] Preferably, a plurality of buffer springs are provided between the movable plate and the positioning plate, and the cross section of the step block is a trapezoidal shape that is narrow at the top and wide at the bottom.
[0010] Preferably, an internal thread adapted to the fastening screw is provided in the limiting groove.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. By providing a movable plate, a limit rod and a toothed disc, the rope can be blocked when the heavy object shakes and deviates, and the pulley can be stopped from rotating. During the suspension process, the rope can be prevented from being detached due to the continuous rotation of the pulley, and the speed of the rope movement can be slowed down. When the pulley is set low in the middle and high on both sides, the rope returns to the middle, avoiding accidents caused by excessive deviation of the rope and reducing the occurrence of accidents. By providing a fixing ring, a fixing table and a tightening screw, the pulley and the mounting frame can be firmly installed through the mounting rod, thereby improving the load-bearing capacity of the device and reducing the possibility of falling during the suspension process. At the same time, it is convenient to disassemble the device and regularly maintain the device when not in use to extend the service life of the device, avoid continued use after severe wear and tear, and reduce the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of an anti-collision device for a petroleum drilling derrick pulley proposed by the utility model;
[0014] Figure 2 This is a schematic diagram of the overall structure installation of an oil drilling derrick pulley anti-collision device proposed by the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of a limiting component of an anti-collision device for a oil drilling derrick pulley proposed by the utility model;
[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0017] Figure 5 The utility model is a schematic diagram of the structure of the fixing components of the anti-collision device of the oil drilling derrick pulley.
[0018] In the figure: 1. Pulley; 11. Positioning plate; 12. Movable plate; 2. Mounting frame; 21. Mounting rod; 3. Limiting assembly; 31. Mounting ring; 32. L-shaped plate; 33. Limiting rod; 331. Tooth block; 332. Wedge block; 34. Limiting spring; 35. Movable rod; 36. Tooth disc; 301. Movable groove; 4. Fixing assembly; 401. Limiting groove; 41. Fixing ring; 42. Fixing table; 43. Fastening screw; 5. Buffer spring. DETAILED DESCRIPTION
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0020] Example 1
[0021] Reference Figure 1-4 A collision prevention device for a petroleum drilling derrick pulley comprises a pulley 1 and a mounting frame 2. The mounting frame 2 is mounted on both sides of the pulley 1 through a mounting rod 21. Positioning plates 11 are fixedly connected to both ends of the pulley 1. Two movable plates 12 are movably mounted on the pulley 1 near the two positioning plates 11. A limiting component 3 for stopping the rotation of the pulley 1 is arranged between the movable plate 12 and the mounting frame 2. A fixing component 4 for fixing the fixed pulley 1 is arranged near the mounting frame 2 on the mounting rod 21.
[0022] Furthermore, the limit assembly 3 includes a mounting ring 31 movably mounted on the mounting rod 21, a movable rod 35 fixedly mounted on the movable plate 12 and a toothed disc 36 mounted on the mounting rod 21. An L-shaped plate 32 is mounted on one side of the mounting ring 31, and a limit rod 33 is movably mounted on the L-shaped plate 32 through a slot. Tooth blocks 331 and wedge blocks 332 that match the teeth of the toothed disc 36 are respectively mounted on both sides of the limit rod 33. A limit spring 34 is sleeved on the limit rod 33; the other end of the movable rod 35 is movably mounted on the movable plate 12 through a movable slot 301.
[0023] It should be noted that: multiple buffer springs 5 are arranged between the movable plate 12 and the positioning plate 11. The elastic force of the buffer spring 5 can drive the movable plate 12 and the movable rod 35 to reset, thereby canceling the limit of the wedge block 332. The cross-section of the wedge block 332 is a trapezoidal shape with a narrow top and a wide bottom. The narrow top and wide bottom shape can better cooperate with the end of the movable rod 35 to move.
[0024] A further advantage of adopting the above method is that when the rope approaches the movable plates 12 on both sides, the movable plates 12 move toward the positioning plate 11, driving the tooth block 331 on one side of the limit rod 33 to engage with the teeth on the toothed disc 36. At this time, the pulley 1 stops rotating, slowing down the speed of the rope movement. At this time, the movable plate 12 has a blocking effect on the rope. Under the setting of the pulley 1 being low in the middle and high on both sides, the rope returns to the middle, avoiding accidents when the rope is excessively deviated, thereby reducing the occurrence of accidents.
[0025] Example 2 proposed based on Example 1:
[0026] Reference Figure 1-5 The fixing assembly 4 includes a fastening screw 43, a fixing ring 41 installed on one side of the mounting frame 2, and a fixing round table 42 installed at the end of the mounting rod 21. The mounting rod 21 and the fixing round table 42 are movably installed in the fixing ring 41. The fastening screw 43 is installed in the fixing ring 41 through a limiting groove 401 opened on the fixing ring 41 and is clamped in front of the fixing round table 42.
[0027] It is worth noting that an internal thread adapted to the fastening screw 43 is provided in the limiting groove 401 .
[0028] A further benefit of adopting the above method is that the blocking effect of the fixed cone 42 fixedly installed at the end of the fixed ring 41 by the threaded fastening screw 43 can improve the firmness of the device, thereby increasing the bearing capacity of the device and avoiding falling due to gravity during the suspension process. At the same time, it is more convenient to disassemble during regular maintenance, avoiding continued use after severe wear and tear, thereby increasing the service life of the device and reducing the occurrence of safety accidents.
[0029] When the lifting lever 31 is in the upright position, the movable plate 12 is moved to the left of the lifting lever 31. When the lifting lever 31 is in the upright position, the movable plate 12 is moved to the right of the lifting lever 31. When the lifting lever 31 is in the upright position, the movable plate 12 is moved to the right of the lifting lever 31. When the lifting lever 31 is in the upright position, the movable plate 12 is moved to the right of the lifting lever 31. When the lifting lever 31 is in the upright position, the movable plate 12 is moved to the right of the lifting lever 31. Under the action of the limit spring 34, the limit rod 33 is driven to reset, and the limiting effect on the toothed disc 36 is cancelled, so that the pulley 1 can rotate continuously and continue the suspension process. The fixed round table 42 is limited by the fastening screw 43, which can improve the load-bearing effect of the device, thereby reducing the degree of wear on the pulley 1 and avoiding accidents caused by excessive wear. When the device is not in use, the limiting effect on the fixed round table 42 is cancelled by fastening the screw 43, thereby facilitating the disassembly of the mounting rod 21 and facilitating the maintenance of the pulley 1. Regular maintenance can increase the service life of the device, thereby avoiding the situation where it is still in use despite severe wear and tear, and reducing the occurrence of safety accidents.
[0030] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.
Claims
1. An anti-collision device for a petroleum drilling derrick pulley, comprising a pulley (1) and a mounting frame (2), wherein the mounting frame (2) is mounted on both sides of the pulley (1) via a mounting rod (21), characterized in that: The two ends of the pulley (1) are fixedly connected with positioning plates (11), the pulley (1) is movably mounted with two movable plates (12) near the two positioning plates (11), a limiting assembly (3) for stopping the rotation of the pulley (1) is arranged between the movable plates (12) and the mounting frame (2), and a fixing assembly (4) for mounting the fixed pulley (1) is arranged near the mounting frame (2) on the mounting rod (21).
2. The anti-collision device for a petroleum drilling derrick pulley according to claim 1, characterized in that: The limiting assembly (3) comprises a mounting ring (31) movably mounted on the mounting rod (21), a movable rod (35) fixedly mounted on the movable plate (12), and a toothed disc (36) mounted on the mounting rod (21); an L-shaped plate (32) is mounted on one side of the mounting ring (31); a limiting rod (33) is movably mounted on the L-shaped plate (32) through a slot; tooth blocks (331) and a wedge block (332) adapted to the teeth of the toothed disc (36) are mounted on both sides of the limiting rod (33); a limiting spring (34) is sleeved and mounted on the limiting rod (33); and the other end of the movable rod (35) is movably mounted on the movable plate (12) through a movable slot (301).
3. The anti-collision device for a petroleum drilling derrick pulley according to claim 1, characterized in that: The fixing assembly (4) comprises a fastening screw (43), a fixing ring (41) mounted on one side of the mounting frame (2), and a fixing truncated platform (42) mounted on the end of the mounting rod (21); the mounting rod (21) and the fixing truncated platform (42) are movably mounted in the fixing ring (41); the fastening screw (43) is mounted in the fixing ring (41) through a limiting groove (401) provided on the fixing ring (41) and is clamped in front of the fixing truncated platform (42).
4. The anti-collision device for a petroleum drilling derrick pulley according to claim 2, characterized in that: A plurality of buffer springs (5) are provided between the movable plate (12) and the positioning plate (11), and the cross section of the step block (332) is a trapezoidal shape that is narrow at the top and wide at the bottom.
5. The anti-collision device for a petroleum drilling derrick pulley according to claim 3, characterized in that: The limiting groove (401) is provided with an internal thread adapted to the fastening screw (43).