A traction type spare part hoisting device

Abstract

The utility model provides a kind of traction type variable pitch spare hoist device, belong to wind power generation technical field, including guide mechanism, the side of guide mechanism is provided with traction mechanism, the side of traction mechanism is provided with support mechanism;Through setting guide block, support rod, gear, tooth slot and the like component, through the meshing of gear and tooth slot, the relationship of slider and sliding slot cooperation, it is accurate control that support mechanism can be guided to moving track by guide mechanism, the thread connection of support rod and internal thread pipe provides firm support for guide block and prevents deformation, and then reaches the effect that the device can be moved smoothly and safely by guide mechanism and support mechanism to variable pitch spare, guarantee the accuracy of position adjustment in hoisting process, especially suitable for fine operation in high-altitude narrow space.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a traction-type pitch spare parts hoisting device. Background Technology

[0002] During the operation and maintenance of wind turbine generator sets, the pitch system is the core component for controlling the blade angle. The replacement and maintenance of its spare parts (such as pitch bearings, pitch motors, and gearboxes) are common operations. Since the pitch spare parts are mostly heavy components (usually weighing hundreds of kilograms), and the working environment is mostly located in the high-altitude nacelle or at the blade root, the space is narrow and the load-bearing capacity is limited, which puts strict requirements on the flexibility, safety and adaptability of the hoisting equipment.

[0003] In addition, the transmission efficiency of traction force in high-altitude operations directly affects operational safety. The design of the traction rope steering structure of the existing device is unreasonable, which can easily lead to rope slippage or wear, increasing traction resistance and the risk of breakage. At the same time, the linkage stability between the guiding mechanism and the support mechanism is insufficient. The movement of the components is often unstable due to excessive meshing clearance or slippage, which increases the difficulty of operation for the workers.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following defects: Existing devices often suffer from deformation and bending due to the simple design of the guide rails or support frames and the lack of reinforcing support components. Especially when hoisting heavy spare parts, insufficient structural rigidity may cause swaying or displacement, posing a safety hazard. The connecting parts (such as positioning blocks) in existing devices are not equipped with triangular reinforcing ribs, which are prone to loosening after repeated use, affecting the overall stability.

[0005] Therefore, this application provides a traction-type pitch spare parts hoisting device to meet the requirements. Summary of the Invention

[0006] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a traction-type pitch spare parts hoisting device.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a traction-type pitch spare parts hoisting device, including a guide mechanism, a traction mechanism is provided on one side of the guide mechanism, and a support mechanism is provided on one side of the traction mechanism;

[0008] The guiding mechanism includes a guide block for guiding the movement of the support mechanism and a support component for preventing the guide block from deforming. The guide block includes guide rails symmetrically arranged on the left and right sides of the support mechanism. The support component includes internally threaded tubes fixedly installed inside the guide block and support rods threadedly connected to the internally threaded tubes after passing through positioning holes. The positioning holes are all opened through the bottom of the guide block.

[0009] The traction mechanism includes a U-shaped locking block fixedly connected to one side of the guide block and a crossbar movably locked to one side of the U-shaped locking block. A roller is fixedly installed on one side of the crossbar, and a traction rope is driven by a belt on one side of the roller. A hook is fixedly connected to the end of the traction rope for traction support mechanism and the pitching spare parts at its bottom.

[0010] Preferably, the guide block has a toothed groove inside, a positioning block is fixedly connected to one side of the guide block, and a triangular reinforcing rib is fixedly connected to the bottom of the positioning block.

[0011] Preferably, the support mechanism includes a gear meshing with the top of the tooth groove, a rotating shaft movably sleeved on one side of the gear, a slider movably sleeved on one side of the rotating shaft, a rotating drum movably sleeved on one side of the rotating shaft, a first traction block fixedly connected to one side of the rotating drum, and a second traction block fixedly connected to the bottom of the rotating shaft, for mounting a hand chain hoist.

[0012] Preferably, the support rod in the support assembly passes through the positioning hole at the bottom of the guide block and is threaded to the internal threaded pipe. The support rod provides support force to the guide block by tightening it. The internal threaded pipe is fixed inside the guide block and cooperates with the support rod.

[0013] Preferably, the traction rope passes around the roller to change the traction direction, and the hook is connected to the support mechanism to apply traction force. The traction rope transmits traction force, with one end connected to the roller and the other end connected to the hook.

[0014] Preferably, the hook of the pull hook passes through the hole of the first traction block and is used to pull the rotating drum and the support mechanism as a whole to move along the guide block.

[0015] Preferably, a groove is provided on one side of the guide block, and the slider is movably installed inside the groove to guide the direction of movement of the rotating drum.

[0016] Preferably, the gear meshes with the tooth groove. When the hook pulls the first traction block, the drive gear rolls along the tooth groove, causing the rotating shaft, slider, rotating drum and the second traction block to move synchronously. The gear meshes with the tooth groove of the guide block and rolls under the action of traction force, causing the support mechanism to move as a whole.

[0017] Preferably, the second traction block is fixedly connected to the bottom of the drum and is used to suspend a hand chain hoist or other lifting device to carry the pitch spare parts.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In the above scheme, by setting up components such as guide blocks, support rods, gears, and tooth grooves, and through the meshing of gears and tooth grooves and the cooperation of sliders and slides, the support mechanism can accurately control the movement trajectory through the guidance of the guide mechanism. The threaded connection between the support rod and the internal threaded pipe provides stable support for the guide block to prevent deformation. Thus, the device can achieve the effect of smooth and safe movement of the pitch spare parts through the cooperation of the guide mechanism and the support mechanism, ensuring the accuracy of position adjustment during hoisting.

[0020] By setting up components such as traction ropes, hooks, first traction blocks, and rollers, and by changing the direction of the traction rope by going around the rollers and by engaging the hook with the first traction block, the traction mechanism can pull the support mechanism with traction force, causing the gears to roll along the tooth grooves to achieve overall movement. The second traction block suspends the lifting device to carry spare parts, thereby achieving the effect that this device can flexibly pull and adjust the position of the pitch spare parts through the traction mechanism, improving the convenience and efficiency of lifting operations. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural diagram of the present invention;

[0024] Figure 3 This is a partial structural diagram of the guide mechanism in this utility model;

[0025] Figure 4 This is a schematic diagram of the main structure of the support mechanism in this utility model;

[0026] 1. Guiding mechanism; 101. Guide block; 102. Positioning block; 103. Slide groove; 104. Internally threaded tube; 105. Positioning hole; 106. Support rod; 107. Tooth groove; 2. Traction mechanism; 201. U-shaped locking block; 202. Crossbar; 203. Roller; 204. Traction rope; 205. Hook; 3. Support mechanism; 301. Rotating shaft; 302. Gear; 303. Sliding block; 304. Rotating drum; 305. First traction block; 306. Second traction block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 3 The illustrated traction-type pitch spare parts hoisting device includes a guide mechanism 1. The guide mechanism 1 includes a guide block 101 for guiding the movement of a support mechanism 3 and a support assembly for preventing deformation of the guide block 101. The guide block 101 includes guide rails symmetrically arranged on the left and right sides of the support mechanism 3. The support assembly includes internally threaded tubes 104 fixedly installed inside the guide block 101 and support rods 106 threadedly connected to the internally threaded tubes 104 after passing through positioning holes 105. The positioning holes 105 are all opened through the bottom of the guide block 101. The support assembly enhances the structural strength of the guide block 101 through threaded connection, avoids deformation under force, and ensures the stability of the movement path of the support mechanism 3.

[0029] like Figure 2 and Figure 3 As shown, the guide block 101 has a toothed groove 107 inside. A positioning block 102 is fixedly connected to one side of the guide block 101. A triangular reinforcing rib is fixedly connected to the bottom of the positioning block 102. The support rod 106 in the support assembly passes through the positioning hole 105 at the bottom of the guide block 101 and is threadedly connected to the internal threaded tube 104. The support force for the guide block 101 is provided by tightening the support rod 106. A sliding groove 103 is provided on one side of the guide block 101. The slider 303 is movably installed inside the sliding groove 103 to guide the direction of movement of the rotating drum 304. The toothed groove 107 meshes with the gear 302 to ensure accurate movement. The sliding groove 103 restricts the offset of the slider 303. The triangular rib enhances the load-bearing capacity of the positioning block 102 and improves the overall stability.

[0030] like Figure 1 and Figure 4 As shown, a traction mechanism 2 is provided on one side of the guide mechanism 1. The traction mechanism 2 includes a U-shaped locking block 201 fixedly connected to one side of the guide block 101 and a crossbar 202 movably locked to one side of the U-shaped locking block 201. A roller 203 is fixedly installed on one side of the crossbar 202, and a traction rope 204 is driven by a belt on one side of the roller 203. A hook 205 is fixedly connected to the end of the traction rope 204 for traction of the support mechanism 3 and the pitching spare parts at its bottom. The U-shaped locking block 201 securely fixes the crossbar 202, the roller 203 reduces the friction of the traction rope 204, and the hook 205 quickly connects to the support mechanism 3, making the traction operation more convenient and labor-saving.

[0031] like Figure 4As shown, the traction rope 204 passes around the roller 203 to change the traction direction, and the hook 205 is connected to the support mechanism 3 to apply traction force. The hook of the hook 205 passes through the hole of the first traction block 305 and is used to pull the rotating drum 304 and the support mechanism 3 as a whole to move along the guide block 101. The traction rope 204 is designed to adapt to different operating spaces, and the hook 205 fits tightly with the traction block to ensure efficient transmission of traction force and avoid slippage.

[0032] like Figure 1 and Figure 4 As shown, a support mechanism 3 is provided on one side of the traction mechanism 2. The support mechanism 3 includes a gear 302 meshing with the top of the tooth groove 107. A rotating shaft 301 is movably sleeved on one side of the gear 302. A slider 303 is movably sleeved on one side of the rotating shaft 301. A rotating drum 304 is movably sleeved on one side of the rotating shaft 301. A first traction block 305 is fixedly connected to one side of the rotating drum 304. A second traction block 306 is fixedly connected to the bottom of the rotating shaft 301 for installing a hand chain hoist. The gear 302 meshes with the tooth groove 107 to make the movement smooth. The rotating drum 304 rotates flexibly to adapt to multi-angle hoisting. The two traction blocks are respectively adapted for traction and hoisting installation, and the functions are clearly divided.

[0033] like Figure 4 As shown, gear 302 meshes with tooth groove 107. When hook 205 pulls the first traction block 305, it drives gear 302 to roll along tooth groove 107, causing rotating shaft 301, slider 303, rotating drum 304, and second traction block 306 to move synchronously. The second traction block 306 is fixedly connected to the bottom of rotating drum 304 and is used to suspend hand chain hoist or other lifting tools to carry variable pitch spare parts. The rolling of gear 302 reduces movement resistance, and the synchronous movement of each component ensures lifting accuracy. The second traction block 306 is compatible with various lifting tools, expanding the application range of the lifting device.

[0034] When replacing the pitch bearing inside the wind turbine nacelle, firstly, the positioning block 102 in the guide mechanism 1 is fixed to the preset installation position on the inner wall of the nacelle using high-strength bolts. The triangular reinforcing rib at the bottom of the positioning block 102 fits tightly against the nacelle wall, enhancing overall stability. Then, the support rod 106 in the support assembly is tightened, allowing it to pass through the positioning hole 105 at the bottom of the guide block 101 and be threadedly connected to the internally threaded tube 104. The support rod 106 applies an upward supporting force to the guide block 101, preventing it from deforming due to load.

[0035] The gear 302 in the support mechanism 3 meshes with the toothed groove 107 inside the guide block 101, while the slider 303 is embedded in the groove 103 on one side of the guide block 101, ensuring that the support mechanism 3 can slide smoothly along the guide block 101. A hand chain hoist is suspended on the second traction block 306 at the bottom of the support mechanism 3, and the pitch bearing is connected to the hook of the hand chain hoist via a sling.

[0036] When operating the traction mechanism 2, first check the stability of the engagement between the U-shaped locking block 201 and the crossbar 202. Then, pass the traction rope 204 around the roller 203 so that the hook 205 hooks onto the first traction block 305 of the support mechanism 3. Pull the end of the traction rope 204 to change the direction of the traction force through the roller 203, driving the gear 302 to roll along the tooth groove 107. At the same time, the slider 303 slides synchronously in the slide groove 103, driving the support mechanism 3 and the pitch bearing at the bottom to move along the guide block 101 to the installation position in the nacelle. Adjust the height of the pitch bearing using a hand-operated hoist to complete the hoisting operation.

[0037] The implementation principle of a traction-type pitch variable spare parts hoisting device according to an embodiment of this application is as follows:

[0038] First, complete the installation and fixation of the guide mechanism 1. Fix the guide block 101 in the working area through the positioning block 102 and the bottom triangular reinforcing rib. Tighten the support rod 106 so that it passes through the positioning hole 105 and is threadedly connected to the internal threaded tube 104. The support rod 106 forms a bottom support for the guide block 101 to prevent it from deforming when bearing weight. At the same time, ensure that the tooth groove 107 and slide groove 103 of the guide block 101 are in a horizontal and aligned state to provide a stable track for the subsequent operation of the mechanism.

[0039] Secondly, the linkage structure of the assembly support mechanism 3 and the guide mechanism 1 is assembled, so that the gear 302 of the support mechanism 3 meshes with the top of the tooth groove 107 of the guide block 101, and the slider 303 is embedded in the slide groove 103 of the guide block 101. The gear 302, slider 303 and rotating drum 304 are connected as a whole through the rotating shaft 301, so that the gear 302 can roll along the tooth groove 107 and the slider 303 can slide along the slide groove 103, ensuring that the support mechanism 3 can move linearly along the guide block 101. At the same time, the rotating drum 304 can rotate flexibly around the rotating shaft 301 to adapt to the traction requirements of different angles.

[0040] Next, the traction mechanism 2 and the support mechanism 3 are connected. The crossbar 202 is snapped onto the U-shaped locking block 201 on one side of the guide block 101 to ensure that the roller 203 is installed securely. One end of the traction rope 204 passes around the roller 203 to change direction, and the hook 205 at the other end passes through the hole of the first traction block 305 of the support mechanism 3 and is locked, so that the traction mechanism 2 and the support mechanism 3 form a power transmission link. The traction force is efficiently transmitted to the support mechanism 3 through the steering function of the roller 203.

[0041] Next, prepare for the hoisting of the pitch spare parts. Install a hand hoist or other lifting device on the second traction block 306 of the support mechanism 3. Securely suspend the pitch spare parts using the lifting device. Check the connection strength between the spare parts and the lifting device to ensure that they will not fall off during the hoisting process. At the same time, adjust the initial position of the support mechanism 3 so that it is at a starting point that facilitates the traction operation.

[0042] Finally, the spare parts are transferred by pulling the free end of the traction rope 204. The direction of the traction force is changed by the roller 203. The hook 205 drives the first traction block 305 to move the support mechanism 3 as a whole. The gear 302 rolls along the tooth groove 107 to generate driving force. The slider 303 slides synchronously in the slide groove 103 to maintain stability. The support mechanism 3 carries the variable pitch spare parts suspended at the bottom and moves along the guide block 101 to the target position to achieve safe and efficient hoisting and transfer.

[0043] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A traction-type pitch spare parts hoisting device, comprising a guiding mechanism (1), characterized in that: A traction mechanism (2) is provided on one side of the guiding mechanism (1), and a support mechanism (3) is provided on one side of the traction mechanism (2). The guide mechanism (1) includes a guide block (101) for guiding the movement of the support mechanism (3) and a support assembly for preventing the guide block (101) from deforming. The guide block (101) includes guide rails symmetrically arranged on the left and right sides of the support mechanism (3). The support assembly includes internally threaded tubes (104) fixedly installed inside the guide block (101) and support rods (106) threadedly connected to the internally threaded tubes (104) after passing through positioning holes (105). The positioning holes (105) are all opened through the bottom of the guide block (101). The traction mechanism (2) includes a U-shaped locking block (201) fixedly connected to one side of the guide block (101) and a crossbar (202) movably locked to one side of the U-shaped locking block (201). A roller (203) is fixedly installed on one side of the crossbar (202), and a traction rope (204) is driven on one side of the roller (203). A hook (205) is fixedly connected to the end of the traction rope (204) for traction support mechanism (3) and its bottom pitching spare parts.

2. The traction-type pitch-change spare parts hoisting device according to claim 1, characterized in that: The guide block (101) has a toothed groove (107) inside, and a positioning block (102) is fixedly connected to one side of the guide block (101). A triangular reinforcing rib is fixedly connected to the bottom of the positioning block (102).

3. The traction-type pitch-change spare parts hoisting device according to claim 2, characterized in that: The support mechanism (3) includes a gear (302) meshing with the top of the tooth groove (107). A rotating shaft (301) is movably sleeved on one side of the gear (302). A slider (303) is movably sleeved on one side of the rotating shaft (301). A rotating cylinder (304) is movably sleeved on one side of the rotating shaft (301). A first traction block (305) is fixedly connected to one side of the rotating cylinder (304). A second traction block (306) is fixedly connected to the bottom of the rotating shaft (301) for installing a hand chain hoist.

4. The traction-type pitch-change spare parts hoisting device according to claim 1, characterized in that: The support rod (106) in the support assembly passes through the positioning hole (105) at the bottom of the guide block (101) and is threaded to the internal threaded tube (104). The support force on the guide block (101) is provided by tightening the support rod (106).

5. A traction-type pitch-change spare parts hoisting device according to claim 1, characterized in that: The traction rope (204) passes around the roller (203) to change the traction direction, and the hook (205) is connected to the support mechanism (3) to apply traction force.

6. A traction-type pitch-change spare parts hoisting device according to claim 3, characterized in that: The hook (205) passes through the hole of the first traction block (305) and is used to pull the rotating drum (304) and the support mechanism (3) as a whole to move along the guide block (101).

7. A traction-type pitch-change spare parts hoisting device according to claim 3, characterized in that: A groove (103) is provided on one side of the guide block (101), and the slider (303) is movably installed inside the groove (103) to guide the direction of movement of the rotating drum (304).

8. A traction-type pitch control spare parts hoisting device according to claim 3, characterized in that: The gear (302) meshes with the tooth groove (107). When the hook (205) pulls the first traction block (305), the drive gear (302) rolls along the tooth groove (107), causing the rotating shaft (301), slider (303), rotating drum (304) and second traction block (306) to move synchronously.

9. A traction-type pitch control spare parts hoisting device according to claim 3, characterized in that: The second traction block (306) is fixedly connected to the bottom of the rotating drum (304).

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