Large-megawatt wind power bearing seat rotating multifunctional auxiliary vehicle
By designing a large megawatt wind power bearing seat rotation multi-function auxiliary vehicle, using components such as the vehicle body, hoisting mechanism, load-bearing block and limiting mechanism, the problems of low rotation efficiency and high cost of bearing seats in the existing technology are solved, and more efficient and lower-cost bearing assembly is achieved.
Patent Information
- Application Number
- CN202422150925.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-03
AI Technical Summary
In the existing technology, in large megawatt wind turbines, manual or mechanical auxiliary methods have problems such as low efficiency, high cost and poor space utilization during the rotation of the bearing seat, especially in the 18MW model, which requires multiple people to operate together and is difficult to meet the process requirements.
A large megawatt wind power bearing seat rotating multi-function auxiliary vehicle is designed, including the vehicle body, hoisting mechanism, load-bearing block, sub-bearing support rod and limiting mechanism. Through the synergy of these components, the rotation and position adjustment of the bearing seat is achieved, ensuring that the outer ring of the bearing is in full contact with the roller and reducing manpower demand.
It improves bearing assembly quality and assembly efficiency, saves labor costs, is more adaptable, is suitable for the existing construction environment, and reduces equipment investment and operation costs.
Smart Images
Figure CN223292236U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of wind turbine generator sets, and in particular relates to a multifunctional auxiliary vehicle for rotating a large-megawatt wind turbine bearing seat. Background Art
[0002] With the increase in wind turbine power generation capacity and the demand for wind power parity, large-megawatt models are becoming increasingly popular, and the assembly quality of the main shaft components plays a key role in the efficient operation of the unit. Models below 10MW in the industry usually use manual propulsion to rotate the bearing seat to ensure sufficient contact between the inner and outer rings of the bearing and the rollers, but this method often requires the coordinated promotion of multiple workers. The 6MW model requires the coordination of four workers, while today's 18MW models require the coordination of 10-12 people, and the promotion speed may not reach the 3r / min required by the process. The relevant bearing manufacturers give the driving torque of the 18MW wind turbine main bearing (also known as the front bearing) as 9000N·M, and the combined torque of the front and rear bearings is 1200N·M. However, the torque generated by a single worker under the construction conditions of the 18MW bearing seat is 600N·M, which is far from meeting the process requirements.
[0003] In addition to manual operation, the current mechanical assistance method in the industry is to use a rotating platform with a support arm and a stationary bearing seat to mechanically assist in rotating the main shaft to assist in the operation. However, this method is not conducive to the utilization of factory space and the use of all machine models, and the investment cost is high and the effect is not significant.
[0004] Based on this, the applicant considered designing a multifunctional auxiliary vehicle for rotating large-megawatt wind turbine bearing seats. Utility Model Content
[0005] In view of the above problems, the present invention provides a multifunctional auxiliary vehicle for rotating large-megawatt wind turbine bearing seats, which overcomes the above problems or at least partially solves the above problems. The technical solution is as follows:
[0006] A large-megawatt wind turbine bearing seat rotation multifunctional auxiliary vehicle includes a vehicle body, a jacking mechanism, a load-bearing block, a sub-support rod and a limiting mechanism. The jacking mechanism is installed on the vehicle body, the load-bearing block is hinged to the top of the jacking mechanism, and the jacking mechanism can adjust the position height of the load-bearing block. The limiting mechanism is installed on the vehicle body and is arranged opposite to the jacking mechanism. The sub-support rod includes a first end and a second end relative to each other, the first end is hinged to the load-bearing block, and the second end is hinged to the limiting mechanism. The limiting mechanism can drive the second end to perform reciprocating lateral movement toward the direction of the jacking mechanism.
[0007] Compared with the existing technology, the utility model of a large megawatt wind power bearing seat rotating multifunctional auxiliary vehicle has the following advantages:
[0008] By providing the vehicle body, jacking mechanism, load-bearing block, sub-support rod and limiting mechanism, the load-bearing block can be used to drive the rotation of the wind turbine bearing seat when the vehicle body moves. The position of the load-bearing block can also be adjusted together through the jacking mechanism, sub-support rod and limiting mechanism to adapt to the rotation fulcrum of wind turbine bearing seats of different heights, which has higher adaptability. At the same time, the sub-support rod can also share the force of the jacking mechanism, thereby achieving a more balanced force when pushing the bearing seat to rotate, ensuring more sufficient contact between the outer ring of the bearing and the roller, improving assembly quality, saving manpower and improving assembly efficiency.
[0009] The above-mentioned large-megawatt wind turbine bearing seat rotation multifunctional auxiliary vehicle has the advantages of simple structure and easy implementation. It is suitable for installation and use in the existing wind turbine bearing seat rotation construction process, and has low cost of use and can improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;
[0012] Figure 3 Schematic diagram of the limiting mechanism structure;
[0013] Figure 4 It is a structural diagram of the locking engagement between the half lock nut and the lead screw in the limiting mechanism;
[0014] Figure 5 It is a schematic diagram of the enlarged structure of the locking device;
[0015] Figure 6 This is a schematic diagram of the connection structure where the auxiliary vehicle drives the wind turbine bearing seat to rotate;
[0016] Description of Reference Numerals
[0017] 100 hulls;
[0018] 210 hydraulic cylinder, 220 lifting block, 230 support rod;
[0019] 300 load-bearing blocks;
[0020] 400 supporting rods, 410 docking holes;
[0021] 510 base, 520 lead screw, 530 sliding seat, 540 handle;
[0022] 610 half lock nut, 620 housing, 630 locking shaft, 640 return spring;
[0023] 710 putter, 720 handle. DETAILED DESCRIPTION
[0024] The present invention will be described in further detail below with reference to the accompanying drawings.
[0025] When implementing: Figure 1-6 As shown, a large-megawatt wind turbine bearing seat rotation multifunctional auxiliary vehicle includes a vehicle body 100, a jacking mechanism, a load-bearing block 300, a sub-support rod 400 and a limiting mechanism. The jacking mechanism is installed on the vehicle body 100, and the load-bearing block 300 is hinged on the top of the jacking mechanism. The jacking mechanism can adjust the position height of the load-bearing block 300. The limiting mechanism is installed on the vehicle body 100 and is arranged opposite to the jacking mechanism. The sub-support rod 400 includes a first end and a second end relative to each other, the first end is hinged to the load-bearing block, and the second end is hinged to the limiting mechanism. The limiting mechanism can drive the second end to perform reciprocating lateral movement toward the direction of the jacking mechanism.
[0026] Compared with the existing technology, the utility model of a large megawatt wind power bearing seat rotating multifunctional auxiliary vehicle has the following advantages:
[0027] By setting up the vehicle body 100, the lifting mechanism, the load-bearing block 300, the sub-support rod 400 and the limiting mechanism, the vehicle body 100 can drive the rotation of the wind turbine bearing seat through the load-bearing block 300 when it moves. The position of the load-bearing block 300 can also be adjusted together through the lifting mechanism, the sub-support rod 400 and the limiting mechanism to adapt to the rotation fulcrum of the wind turbine bearing seat at different heights, which has higher adaptability. At the same time, the sub-support rod 400 can also share the force of the lifting mechanism, thereby achieving a more balanced force when pushing the bearing seat to rotate, ensuring more sufficient contact between the outer ring of the bearing and the roller, improving the assembly quality, saving manpower, and improving assembly efficiency.
[0028] The above-mentioned large-megawatt wind turbine bearing seat rotation multifunctional auxiliary vehicle has the advantages of simple structure and easy implementation. It is suitable for installation and use in the existing wind turbine bearing seat rotation construction process, and has low cost of use and can improve efficiency.
[0029] In this embodiment, Figure 1-6 As shown, the jacking mechanism includes a hydraulic cylinder 210, a jacking block 220 and a support rod 230. The hydraulic cylinder 210 is installed in the front part of the vehicle body 100. The push rod 710 of the hydraulic cylinder 210 pushes the top surface of the vehicle body 100 upward. A downward-opening slot is provided in the jacking block 220, and the push rod 710 of the hydraulic cylinder 210 is inserted into the slot. The bottom end of the support rod 230 is fixed to the jacking block 220, and the top end of the support rod 230 extends vertically upward. The load-bearing block 300 is hinged to the top of the support rod 230.
[0030] In this way, the height position of the load-bearing block 300 can be adjusted by setting the hydraulic cylinder 210, the lifting block 220 and the support rod 230, and the adjustment structure is relatively simple, easy to implement, low in production cost and high in reliability.
[0031] During implementation, the designed auxiliary vehicle is relatively lightweight and cannot meet the requirement of generating 10,000N friction force. The hydraulic cylinder 210 is installed to generate greater pressure, increase friction force, and generate greater torque on the bearing seat. The electric tractor must meet certain power conditions (total power must be ≥2KW, speed ≤0.5m / s).
[0032] In this embodiment, Figure 1-6 As shown, the load-bearing block 300 includes a third end and a fourth end, the third end is located at the bottom of the load-bearing block 300, and the fourth end is located on the side wall of the load-bearing block 300, the third end is hinged to the top end of the support rod 230, and the fourth end is hinged to the first end of the sub-support rod 400.
[0033] In this way, by setting the bearing block 300 to be hinged at both ends, the bearing block 300 can adapt to the height change of the support rod 230 and the lateral position change of the second end of the supporting rod 400 in real time.
[0034] In this embodiment, Figure 1-6 As shown, the load-bearing block 300 is provided with a docking hole 410 between the third end and the fourth end.
[0035] In this way, the vehicle body 100 can be connected to the rotating support rod on the wind turbine bearing seat through the provided docking hole 410, and the docking is convenient and fast, and the stability is good.
[0036] In this embodiment, Figure 1-6 As shown, an angle is formed between the third end and the fourth end, and the angle is ninety degrees.
[0037] In this way, by setting the included angle, the load-bearing block 300 can be better connected with the support rod 230 and the sub-support rod 400, and the adjustment range is wide.
[0038] In this embodiment, Figure 1-6As shown, the limiting mechanism includes a base 510, a screw 520, a sliding seat 530, a handle 720540 and a semi-locking assembly. The base 510 is fixedly connected to the top surface of the rear part of the vehicle body 100 and is arranged opposite to the support rod 230. The front and rear ends of the base 510 are respectively provided with bosses, and the two ends of the screw 520 are respectively rotatably set on the two bosses. The sliding seat 530 is slidably installed on the base 510. A threaded hole is provided in the middle of the sliding seat 530, and is threadedly connected to the screw 520 through the threaded hole. The handle 720540 includes opposite connecting ends and a holding end. The connecting end is transmission-connected to one end of the screw 520. The semi-locking assembly is hinged on the sliding seat 530 and can be locked with the screw 520.
[0039] In this way, by setting the base 510, screw 520, sliding seat 530, handle 720540 and half-lock assembly, the sliding seat 530 can be driven to move along the length direction of the screw 520 by rotating the handle 720540, so as to drive the second end of the support rod 400 to move horizontally. The moving structure is relatively simple and has high reliability.
[0040] During implementation, the sliding direction of the sliding seat 530 and the rotation direction of the bearing block 300 are located on the same plane.
[0041] In this embodiment, Figure 1-6 As shown, the half-locking assembly includes a half-locking nut 610 and a locking device. The half-locking nut 610 includes a relative front end and a rear end. A semi-cylindrical groove opening downward is provided in the half-locking nut 610. The two ends of the semi-cylindrical groove respectively pass through the front end face of the half-locking nut 610 and the rear end face of the half-locking nut 610. The rear end of the half-locking nut 610 is hinged to the top edge of the sliding seat 530 and can be engaged with the screw 520 by rotating the semi-cylindrical groove. The locking device is installed on the half-locking nut 610 and is used to lock the engaged state between the semi-cylindrical groove and the screw 520.
[0042] In this way, by setting up the half lock nut 610 and the locker, when it is necessary to lock the position of the second end of the sub-support rod 400 on the base 510, it can be locked by cooperating with the half lock nut 610 and the screw 520. When the locking position is not needed, the cooperation between the half lock nut 610 and the screw 520 can be released, and the locking structure is simple and relatively reliable.
[0043] In this embodiment, Figure 1-6As shown, the lock includes a shell 620, a locking shaft 630 and a reset spring 640. The shell 620 is fixed to the outer wall of the half lock nut 610. A reset cavity is provided in the shell 620. The shell 620 includes opposite front and rear side walls. Through holes are provided on the front and rear side walls. A locking hole is provided on the sliding seat 530. The locking hole corresponds to the through hole on the rear side wall. The locking shaft 630 is arranged in the reset cavity. The locking shaft 630 includes the corresponding The locking end and the rotating end are opposite, the locking end is located outside the through hole on the rear side wall, the rotating end is located outside the through hole on the front side wall, a rotating rod is provided on the rotating end, a positioning card is provided on the outer wall of the shell 620, the rotating rod can be stuck in the positioning card, the locking shaft 630 is provided with a support block on the outer wall of the reset cavity, the reset spring 640 is provided in the reset cavity, one end of the reset spring 640 is connected to the bottom wall of the reset cavity, and the other end is connected to the support block.
[0044] In this way, by setting the shell 620, locking shaft 630 and return spring 640, the locking end of the locking shaft 630 can be inserted into the locking hole on the sliding seat 530, thereby locking the relative position between the half locking nut 610 and the sliding seat 530, thereby preventing the half locking nut 610 and the screw 520 from separating from each other. The locking structure is relatively simple, easy to implement, and has high reliability.
[0045] In this embodiment, Figure 1-6 As shown, a push rod 710 is provided at the rear of the vehicle body 100 , and the push rod 710 includes a fixed end and a pushing end opposite to each other. The fixed end is fixedly connected to the vehicle body 100 , and the pushing end extends upwards from the vehicle body 100 .
[0046] In this way, the push rod 710 is provided so that personnel can conveniently adjust the position of the vehicle body 100, such as disassembling the vehicle body 100 for maintenance or installing the vehicle body 100 to connect with the wind turbine bearing seat.
[0047] In this embodiment, Figure 1-6 As shown, a handle is provided on the pushing end of the push rod 710.
[0048] In this way, the provided handle makes it more convenient for personnel to adjust the position of the vehicle body 100.
[0049] The above are only preferred implementations of the present invention. It should be pointed out that various modifications and improvements made by those skilled in the art without departing from the present technical solution should also be deemed to fall within the scope of protection required by the claims.
Claims
1. A multifunctional auxiliary vehicle for rotating large-megawatt wind turbine bearing seats, characterized by: It includes a car body, a lifting mechanism, a load-bearing block, a sub-support rod and a limiting mechanism. The lifting mechanism is installed on the car body, the load-bearing block is hinged to the top of the jacking mechanism, and the jacking mechanism can adjust the position height of the load-bearing block. The limiting mechanism is installed on the car body and is arranged opposite to the jacking mechanism. The sub-support rod includes a first end and a second end relative to each other, the first end is hinged to the load-bearing block, and the second end is hinged to the limiting mechanism. The limiting mechanism can drive the second end to perform reciprocating lateral movement toward the direction of the jacking mechanism.
2. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 1, characterized in that: The jacking mechanism includes a hydraulic cylinder, a jacking block and a support rod. The hydraulic cylinder is installed in the front part of the vehicle body. The push rod of the hydraulic cylinder pushes the top surface of the vehicle body upward. A downward-opening slot is provided in the jacking block, and the push rod of the hydraulic cylinder is inserted into the slot. The bottom end of the support rod is fixed to the jacking block, and the top end of the support rod extends vertically upward. The load-bearing block is hinged to the top of the support rod.
3. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 2, characterized in that: The load-bearing block includes a third end and a fourth end, the third end is located at the bottom of the load-bearing block, the fourth end is located on the side wall of the load-bearing block, the third end is hinged to the top end of the support rod, and the fourth end is hinged to the first end of the sub-support rod.
4. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 3, characterized in that: The load-bearing block is provided with a docking hole between the third end portion and the fourth end portion.
5. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 4, characterized in that: An angle is formed between the third end and the fourth end, and the angle is ninety degrees.
6. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 4, characterized in that: The limiting mechanism includes a base, a screw, a sliding seat, a handle and a half-lock assembly. The base is fixedly connected to the top surface of the rear of the vehicle body and is arranged opposite to the support rod. Bosses are respectively provided at the front and rear ends of the base. The two ends of the screw are rotatably set on the two bosses. The sliding seat is slidably installed on the base. A threaded hole is provided in the middle of the sliding seat, and is threadedly connected to the screw through the threaded hole. The handle includes relative connecting ends and a gripping end. The connecting end is transmission-connected to one end of the screw. The half-lock assembly is hinged on the sliding seat and can be locked with the screw.
7. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 6, characterized in that: The half-locking assembly includes a half-locking nut and a locking device. The half-locking nut includes a relative front end and a rear end. A semi-cylindrical groove opening downward is provided in the half-locking nut. The two ends of the semi-cylindrical groove respectively pass through the front end face of the half-locking nut and the rear end face of the half-locking nut. The rear end of the half-locking nut is hinged to the top edge of the sliding seat and can be engaged with the screw by rotating the semi-cylindrical groove. The locking device is installed on the half-locking nut and is used to lock the engaged state between the semi-cylindrical groove and the screw.
8. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 7, characterized in that: The lock member is a pair of lock holes, each of which is connected to the front and rear ends of the lock hole, and the lock hole is correspondingly formed on the rear end of the lock hole.
9. A multifunctional auxiliary vehicle for rotating large-megawatt wind turbine bearing seats according to any one of claims 1 to 8, characterized in that: A push rod is provided at the rear of the vehicle body. The push rod comprises a fixed end and a pushing end opposite to each other. The fixed end is fixedly connected to the vehicle body, and the pushing end extends upwards of the vehicle body.
10. The multifunctional auxiliary vehicle for rotating large-megawatt wind power bearing seats according to claim 9, characterized in that: A handle is provided on the pushing end of the push rod.