Lifting adjusting and supporting device for generator stator

Abstract

A generator stator lifting adjusting and supporting device comprises a lifting oil cylinder, supporting frames are arranged on the periphery of the lifting oil cylinder, the multiple supporting frames are evenly distributed on the periphery of the lifting oil cylinder in the circumferential direction, and the inner side ends of the supporting frames are fixedly connected to the lifting oil cylinder. And the support frame can drive the stator core to move up and down under the power action of the lifting oil cylinder. The device is simple in structure and convenient to operate, the height of the device can be flexibly adjusted, the stability of the device is better, the safety is higher, and the production efficiency of the generator stator is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a supporting device for adjusting the lifting and lowering of a generator stator. Background Art

[0002] In the production process of generator stator, due to different operations, different positions of the stator need to be processed, such as: wire embedding and head joining, which are essential steps in stator processing. The main working positions of stator wire embedding are in the middle and lower end of the stator core, and the main working position of stator head joining is at the upper end of the core. In the prior art, multiple fixed supports are evenly distributed around the circumference under the stator core during stator processing. This method cannot adjust the height of the stator, which has many adverse effects on the processing of the stator. For example, in the wire embedding process, when working at the lower end of the stator core, the operator needs to sit on the ground to embed the wire, which is difficult to operate, increases the operation time, and reduces the operation efficiency. In the head joining process, the total height of the core + support tooling is 1350mm. In order to facilitate the operation, the height of the working platform needs to be raised upward. The existing method of adding a pedal under the support tooling is usually used to increase the height of the working platform. In this way, not only the transportation of the pedal increases the labor intensity of the staff, but also the height of the pedal is fixed, which is not suitable for all staff.

[0003] Furthermore, during the stator processing, a pressure ring is generally used on the lower end surface of the stator to contact the stator fixed support. The width of the pressure ring is about 20 mm, and its contact area with the fixed support is small. The two are fixed by gravity, which makes the stator less stable and easy to tip over, posing a greater safety risk. Summary of the invention

[0004] The purpose of the present invention is to provide a liftable generator stator adjustment support device with higher efficiency and safety factor, so as to solve the technical problems that the existing stator fixed support height cannot be adjusted and has poor fixation, resulting in great difficulty in processing, low efficiency, low applicability and poor safety.

[0005] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0006] A generator stator lifting and adjusting support device includes a lifting cylinder. A support frame is provided on the periphery of the lifting cylinder. A plurality of support frames are evenly distributed around the periphery of the lifting cylinder in a circumferential direction. The inner end of the support frame is fixedly connected to the lifting cylinder. When in use, the stator core is placed on the support frame, and the support frame can drive the stator core to move up and down under the power of the lifting cylinder.

[0007] Furthermore, the lifting cylinder includes a cylinder body, and a corresponding telescopic rod is provided below the cylinder body. The telescopic rod can be extended downward under the action of the cylinder body, and the bottom end of the telescopic rod is lower than the bottom surface of the cylinder body. A corresponding base is provided at the bottom end of the telescopic rod, and the inner end of the support frame is connected to the outer wall of the cylinder body.

[0008] Furthermore, the support frame includes an internally hollow tubular fixing rod, the inner end of the fixing rod is fixedly connected to the outer wall of the cylinder body, the outer end of the fixing rod is provided with a corresponding movable rod, the inner end of the movable rod penetrates into the inner cavity of the fixing rod from the outer pipe opening of the fixing rod, the two are slidably connected, the outer end of the movable rod extends out of the fixing rod, the outer end of the movable rod is provided with a support rod, the support rod passes through the movable rod from bottom to top, the two are slidably connected, and it is parallel to the lifting cylinder, the outer wall of the support rod is provided with an external thread, and the upper and lower sides of the movable rod are provided with positioning nuts corresponding to the support rod, including an upper nut above the movable rod and a lower nut below the movable rod, the positioning nut is sleeved on the outside of the support rod, and the inner side of the positioning nut is provided with an internal thread corresponding to the external thread of the support rod.

[0009] Furthermore, the support frame is provided with a corresponding positioning rod, which is arranged above the movable rod and has a bottom end fixedly connected to the top surface of the movable rod.

[0010] Furthermore, the support frame is provided with scale lines, and a plurality of scale lines are evenly distributed on the upper surface of the movable rod from the inside to the outside.

[0011] Furthermore, a corresponding seat plate is provided below the support rod, and the bottom end of the support rod is connected to the lower surface of the seat plate.

[0012] Furthermore, corresponding reinforcing ribs are provided at the connection between the fixing rod and the oil cylinder body.

[0013] Furthermore, each component of the support frame is made of Q235 steel.

[0014] The generator stator lifting and adjusting support device of the present invention has a simple structure and is easy to operate. It is suitable for stators of various models and sizes, and reduces the economic cost of stator production. It uses a lifting cylinder as power, and with the cooperation of a support frame, the height of the stator above it can be flexibly adjusted, which improves the comfort of workers during operation, greatly reduces the difficulty of stator production, increases the work efficiency of generator stator production, and makes it more economically beneficial. At the same time, the setting of the positioning rod makes it more stable, greatly reduces the danger of the processing environment, and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the present invention when used;

[0017] Figure 3 For the present invention Figure 2 Schematic diagram of the three-dimensional structure;

[0018] Explanation of the markings in the figure: 1. Lifting cylinder; 11. Cylinder body; 12. Telescopic rod; 13. Base; 2. Support frame; 21. Fixed rod; 22. Movable rod; 23. Support rod; 24. Positioning nut; 25. Positioning rod; 26. Scale line; 27. Seat plate; 28. Reinforcing rib; 3. Stator core; 31. Press ring. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the present invention, a generator stator lifting and adjusting support device of the present invention is further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-3 As shown, the generator stator lifting and adjusting support device of the present invention includes a lifting cylinder 1, and a support frame 2 is provided on the periphery of the lifting cylinder 1. A plurality of support frames 2 are evenly distributed around the lifting cylinder 1 in a circumferential direction, and the inner ends thereof are fixedly connected to the lifting cylinder 1. In this embodiment, four support frames 2 are evenly distributed around the lifting cylinder 1, and the angles between adjacent support frames 2 in the four support frames 2 are the same. Such an arrangement makes the lifting device more stable. When in use, the stator core 3 to be processed is hoisted and placed on the support frame 2 by an external crane. At this time, under the power of the lifting cylinder 1, the support frame 2 can drive the stator core 3 to move up and down, and then make it reach an appropriate processing height.

[0021] The lifting cylinder 1 includes a cylinder body 11, and a telescopic rod 12 corresponding to the cylinder body 11 is provided below the cylinder body 11. The cylinder body 11 serves as a power device of the lifting cylinder 1 and provides a driving force for the extension and retraction of the telescopic rod 12. The telescopic rod 12 can be extended downward under the action of the cylinder body 11. The bottom end of the telescopic rod 12 is lower than the bottom surface of the cylinder body 11. A corresponding base 13 is provided at the bottom end of the telescopic rod 12. The top end of the base 13 is fixedly connected to the bottom surface of the telescopic rod 12. The lifting cylinder 1 applies force to the outside through the base 13 to change the height position of its cylinder body 11. The area of ​​the base 13 is larger than the cross-sectional area of ​​the telescopic rod 12, which increases the effective area of ​​the lifting cylinder 1 when applying force to the outside, improves the stability of the lifting cylinder 1, and also increases its bearing capacity. The inner end of the support frame 2 is connected to the outer wall of the cylinder body 11.

[0022] The support frame 2 includes a fixed rod 21, a movable rod 22 and a support rod 23. The support frame 2 is connected to the lifting cylinder 1 through the fixed rod 21. The inner end of the fixed rod 21 is fixedly connected to the outer wall of the cylinder body 11. The fixed rod 21 is a tubular body with a hollow interior. The movable rod 22 is arranged at the outer end of the fixed rod 21. The inner end of the movable rod 22 penetrates into its inner cavity from the outer pipe opening of the fixed rod 21, and the two are slidably connected. The outer end of the movable rod 22 extends out of the fixed rod 21. The overall length of the support frame 2 is changed by adjusting the length of the movable rod 22 extending out of the fixed rod 21, so that it is suitable for stator cores 3 of different radii. In this embodiment, the multiple support frames 2 around the lifting cylinder 1 are adjusted to the same length when in use, and the stator core 3 placed above it is more stable and not easy to tip over. The support rod 23 is arranged at the outer end of the movable rod 22, which is parallel to the lifting cylinder 1, and passes through the movable rod 22 from bottom to top. The two are slidably connected. The support rod 23 The outer wall of the movable rod 22 is provided with an external thread, and the upper and lower sides of the movable rod 22 are provided with positioning nuts 24 corresponding to the support rod 23, including an upper nut located above the movable rod 22 and a lower nut located below the movable rod 22. The positioning nut 24 is sleeved on the outside of the support rod 23, and its inner side is provided with an internal thread corresponding to the external thread of the support rod 23. The positioning nut 24 and the support rod 23 cooperate with each other through corresponding threads, and the positioning nut 24 can move up and down on the support rod 23 by screwing. The upper nut is used to position the support rod 23 when it rises, and it can also prevent it from falling off the movable rod 22. The lower nut is used to position the support rod 23 when it descends. It also cooperates with the support rod 23 to play a certain supporting role on the movable rod 22. When in use, the positioning nut 24 and the support rod 23 cooperate with each other and work together with the lifting cylinder 1 to adjust the height of the support frame 2, thereby changing the height of the stator core 3 on the support device, making it convenient for the staff to operate it.

[0023] A corresponding positioning rod 25 is provided on the support frame 2. The positioning rod 25 is arranged above the movable rod 22, and its bottom end is fixedly connected to the top surface of the movable rod 22. In this embodiment, the positioning rod 25 is arranged on the outer side of the movable rod 22. The positioning rod 25 can move with the sliding of the movable rod 22, so that the distance between it and the axis of the lifting cylinder corresponds to the radial dimension of the corresponding stator core 3 to be processed. Such a setting can make the same support device suitable for stator cores 3 of various sizes. When in use, the inner end of the positioning rod 25 abuts against the outer side corresponding to the pressure ring 31 of the lower end surface of the stator core 3, thereby providing a fixed positioning effect for the stator core 3, preventing the stator core 3 from moving during the processing, making it more convenient for workers to perform processing operations such as embedding and paralleling, and at the same time increasing the safety of the operator.

[0024] The support frame 2 is provided with scale lines 26, and a plurality of scale lines 26 are evenly distributed on the upper surface of the movable rod 22 from the inside to the outside. The scale lines 26 can be used to measure and locate the relative position between the movable rod 22 and the fixed rod 21, so as to facilitate the staff to adjust the length of the movable rod 22 pulled out of the fixed rod 21, thereby controlling the overall size of the support frame 2. In this embodiment, the scale lines 26 are arranged on the movable rod 22 on the inner side of the positioning rod 25. When in use, the movable rod 22 is pulled out from the fixed rod 21 to an appropriate length according to the scale lines 26 according to the different sizes of the stator core 3 as needed.

[0025] A corresponding seat plate 27 is provided below the support rod 23. The bottom end of the support rod 23 is connected to the lower surface of the seat plate 27. The area of ​​the seat plate 27 is larger than the radial cross-sectional area of ​​the support rod 23. The setting of the seat plate 27 increases the contact surface of the support rod 23 with the outside, and increases the force-bearing area when the support rod 23 is subjected to external force, thereby improving its ability to withstand the force applied by external contact, making it more stable when connected to the outside.

[0026] Corresponding reinforcing ribs 28 are provided at the connection between the fixed rod 21 and the cylinder body 11. In this embodiment, the fixed rod 21 is connected to the bottom end of the outer wall of the cylinder body 11, the bottom end of the reinforcing rib 28 is connected to the upper surface of the fixed rod 21, and the inner end thereof is connected to the outer wall of the cylinder body 11. The provision of the reinforcing rib 28 reduces the possibility of breakage of the support frame 2, enhances the stability of the connection between the support frame 2 and the lifting cylinder 1, and improves the overall load-bearing capacity of the support device.

[0027] All components of the support frame 2 are made of high-strength steel material. In this embodiment, they are made of Q235 steel, which has higher strength and greater bearing capacity, and is not easy to break even if it supports a stator with a large load.

[0028] When in use, first adjust the relative position between the fixed rod 21 and the movable rod 22, adjust the support frame 2 to a suitable size according to the size of the stator core 3 to be processed, and then use the external lifting device to lift the stator core 3 to the top of the supporting device and place it on the support frame 2. At this time, the inner end of the positioning rod 25 is against the outer wall of the pressure ring 31 on the lower end surface of the stator core 3, and the positioning rods 25 on the multiple support frames 2 around the lifting cylinder 1 increase the radial fixation of the stator core 3. The lifting cylinder 1 and the support rod 23 cooperate with each other to provide support for the stator core 3 above the support frame 2 while making its height flexibly adjustable. Specifically, when the height of the stator core 3 needs to be lifted, first loosen the upper nut, move it up to the corresponding position according to the size of the stator core 3 to be lifted, and then start the lifting cylinder 1, and its telescopic rod 12 is expanded downward to apply The cylinder body 11 rises upward under the action of the force, and the cylinder body 11 drives the stator core 3 on its upper part to rise synchronously through the support frame 2, and stops when the movable rod 22 reaches the bottom end of the upper nut, and finally adjusts the lower nut to make it rise to the top end and fit the movable rod 22 and stops. In this way, the lifting of the stator core 3 is completed; when the height of the stator core 3 needs to be lowered, first loosen the lower nut, move it down to the corresponding position according to the size of the stator core 3 to be lowered, and then start the lifting cylinder 1, its telescopic rod 12 contracts inward, and the cylinder body 11 descends under its drive, and the cylinder body 11 drives the stator core 3 to descend synchronously through the support frame 2, and stops when the movable rod 22 reaches the upper end of the lower nut, and finally adjusts the upper nut to make it fall to the bottom end and fit the movable rod 22 and stops. In this way, the lowering of the stator core 3 is completed.

[0029] The generator stator lifting and adjusting support device of the present invention can adjust the height of the stator core according to the position of the processing work content through the mutual cooperation of the lifting cylinder 1 and the support frame 2, so that the personnel are always at a comfortable height during the operation process, meeting the ergonomic requirements, and having a simple structure and convenient operation, which reduces the difficulty of stator production. Through the mutual cooperation of the movable rod 22 and the fixed rod 21, it is suitable for various types of stators, reducing the cost of the generator stator in factory production and improving the economic benefits of its factory production. The generator stator lifting and adjusting support device of the present invention makes the stator processing operation more convenient and has higher production efficiency. The setting of the positioning rod 25 provides a positioning and fixing effect for the stator core 3 to be processed, reduces the danger of the processing environment in this process, and makes the safety of the personnel during the processing operation higher.

[0030] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A generator stator lifting and adjusting support device, characterized in that: The utility model comprises a lifting cylinder (1), wherein a support frame (2) is arranged on the periphery of the lifting cylinder (1), and a plurality of support frames (2) are evenly distributed around the periphery of the lifting cylinder (1) in a circumferential direction, and the inner side end of the support frame (2) is fixedly connected to the lifting cylinder (1). When in use, the stator core (3) is placed on the support frame (2), and the support frame (2) can drive the stator core (3) to move up and down under the power of the lifting cylinder (1).

2. The generator stator lifting and adjusting support device according to claim 1 is characterized in that: The lifting cylinder (1) comprises a cylinder body (11), a telescopic rod (12) corresponding to the cylinder body (11) is provided below the cylinder body (11), the telescopic rod (12) can be extended downward under the action of the cylinder body (11), the bottom end of the telescopic rod (12) is lower than the bottom surface of the cylinder body (11), a corresponding base (13) is provided at the bottom end of the telescopic rod (12), and the inner end of the support frame (2) is connected to the outer wall of the cylinder body (11).

3. The generator stator lifting and adjusting support device according to claim 2 is characterized in that: The support frame (2) comprises a tubular fixed rod (21) with a hollow interior, the inner end of the fixed rod (21) being fixedly connected to the outer wall of the oil cylinder body (11), the outer end of the fixed rod (21) being provided with a corresponding movable rod (22), the inner end of the movable rod (22) penetrating into the inner cavity of the fixed rod (21) from the outer pipe opening of the fixed rod (21), the two being slidably connected, the outer end of the movable rod (22) extending out of the fixed rod (21), the outer end of the movable rod (22) being provided with a support rod (23), the support rod (23 ) passes through the movable rod (22) from bottom to top, and the two are slidably connected. It is parallel to the lifting cylinder (1). The outer wall of the support rod (23) is provided with an external thread. The upper and lower sides of the movable rod (22) are provided with positioning nuts (24) corresponding to the support rod (23), including an upper nut above the movable rod (22) and a lower nut below the movable rod (22). The positioning nut (24) is mounted on the outside of the support rod (23), and the inner side thereof is provided with an internal thread corresponding to the external thread of the support rod (23).

4. The generator stator lifting and adjusting support device according to claim 3 is characterized in that: The support frame (2) is provided with a corresponding positioning rod (25), which is arranged above the movable rod (22) and has a bottom end fixedly connected to the top surface of the movable rod (22).

5. The generator stator lifting and adjusting support device according to claim 3 is characterized in that: The support frame (2) is provided with scale lines (26), and a plurality of scale lines (26) are evenly distributed on the upper surface of the movable rod (22) from the inside to the outside.

6. The generator stator lifting and adjusting support device according to claim 3, characterized in that: A corresponding seat plate (27) is provided below the support rod (23), and the bottom end of the support rod (23) is connected to the lower surface of the seat plate (27).

7. The generator stator lifting and adjusting support device according to claim 3 is characterized in that: Corresponding reinforcing ribs (28) are provided at the connection between the fixing rod (21) and the oil cylinder body (11).

8. The generator stator lifting and adjusting support device according to claim 1, characterized in that: Each component of the support frame (2) is made of Q235 steel.

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