Blade polishing device

Abstract

The utility model relates to a blade polishing device which comprises a device plate, an upper side reversing wheel set and a lower side reversing wheel set are arranged on the device plate, at least two working wheel sets are arranged between the upper side reversing wheel set and the lower side reversing wheel set on the device plate, and each working wheel set comprises two working wheels which are arranged up and down at intervals. A working rod is arranged between the upper working wheel and the lower working wheel on the device plate, a grinding wheel is rotationally assembled at the right end of the working rod and located on the right side of the device plate, the left-right position of the working rod is adjustable, and at least one reversing wheel in the upper reversing wheel set is a driving wheel driven by a motor. A grinding belt is wound on each reversing wheel in the upper side reversing wheel set and each reversing wheel in the lower side reversing wheel set, and the grinding belt has at least two working states of independently winding a corresponding grinding wheel and simultaneously winding all corresponding grinding wheels. The technical problems that in the prior art, the height and the number of polishing stations are single, and various polishing requirements cannot be met are solved.

Description

Technical Field

[0001] This utility model relates to the field of blade machining, and in particular to a blade grinding device. Background Art

[0002] Blades are an important component of impellers. In order to remove imperfections on the blade surface, such as air bubbles, pinholes, burrs and scratches, and make the product surface smoother, a grinding device is needed to grind the blades. Grinding can remove unevenness and unnecessary edges on the blade surface, making the product size and shape more accurate and beautiful.

[0003] Chinese patent CN215617161U discloses "an edge grinding device for producing wind turbine blades", which includes a supporting triangular plate, on which three guide wheels distributed in a triangular pattern are rotatably mounted, and a grinding belt is wound on the three guide wheels, one of which is a drive wheel.

[0004] In use, the drive wheel rotates under the drive of the power mechanism, thus rotating the grinding belt in a circular motion to grind the blades. The existing grinding device has the following problems: only three guide wheels achieve the circular rotation of the grinding belt, limiting the overall length of the belt. This means a limited usable grinding area, a limited number of blades that each belt can handle, and the need for frequent belt replacements. The short belt length also hinders natural heat dissipation during operation. Furthermore, the grinding belt can only provide one grinding station (and its height cannot be adjusted), preventing the simultaneous grinding of two workpieces and hindering efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a blade grinding device to solve the technical problem that the height and number of grinding stations in the prior art are limited and cannot meet various grinding needs.

[0006] The technical solution of the blade grinding device in this utility model is as follows:

[0007] A blade grinding device includes a device plate extending along the front-rear direction. An upper reversing wheel set and a lower reversing wheel set are provided on the device plate. At least two working wheel sets arranged at intervals along the vertical direction are provided between the upper and lower reversing wheel sets on the device plate. Each working wheel set includes two working wheels arranged at intervals. A working rod is provided between the upper and lower working wheels on the device plate. A grinding wheel is rotatably mounted on the right end of the working rod, located on the right side of the device plate. The left-right position of the working rod is adjustable. At least one reversing wheel in the upper reversing wheel set is a drive wheel driven by a motor. A grinding belt is wound around each reversing wheel in the upper and lower reversing wheel sets. The grinding belt has at least two working states: individually winding around a corresponding grinding wheel and simultaneously winding around all corresponding grinding wheels.

[0008] Furthermore, the diameter of the drive wheel is larger than the diameters of the other directional wheels in the upper directional wheel assembly and the directional wheels in the lower directional wheel assembly.

[0009] Furthermore, there are two work wheels.

[0010] Furthermore, a fixing plate is fixed on the device plate between the two corresponding working wheels. The right end of the fixing plate protrudes to the right from the device plate. The fixing plate is provided with multiple fixing plate bolt holes spaced apart in the left and right direction. The working rod is provided with multiple working rod bolt holes spaced apart in the left and right direction.

[0011] Furthermore, both the upper and lower reversing wheel sets include follower reversing wheels that are driven to rotate by the grinding belt. The follower reversing wheel includes a reversing wheel shaft and a reversing wheel cylinder that rotates with the reversing wheel shaft through a bearing. The grinding belt contacts and engages with the reversing wheel cylinder, and the length of the reversing wheel cylinder is at least twice the width of the grinding belt.

[0012] Furthermore, the device plate is provided with mounting holes and mounting sleeves corresponding to the follower reversing wheel. The reversing wheel cylinder is located in front of the mounting hole. The mounting sleeve is installed into the mounting hole from back to front. The rear end of the mounting sleeve has a connecting flange. The connecting flange is fixedly connected to the device plate by the outer bolts. The reversing wheel shaft is installed into the inner hole of the mounting sleeve from front to back. The reversing wheel shaft and the mounting sleeve are anti-rotationally engaged by a key.

[0013] Furthermore, the rear end of the reversing wheel axle is fixedly connected to the mounting sleeve by a center bolt.

[0014] The beneficial effects of this technical solution are as follows: The upper and lower reversing wheel sets are arranged vertically and alternately on the device plate, thus reserving installation space between them for different working wheel sets. At least two working wheel sets are arranged vertically and alternately. In use, the grinding belt passes around the upper reversing wheel set, the lower reversing wheel set, and the corresponding working wheel set. In this embodiment, the grinding belt has at least two working states: passing around a single working wheel and passing around all corresponding working wheels simultaneously. For example, for the same grinding belt, the working rod can move to the left, allowing the grinding belt to pass around two grinding wheels simultaneously, providing two working positions (upper and lower) for the grinding operation. Of course, the grinding belt can also pass around only one grinding wheel, in which case the corresponding working rod can move to the right to match the length of the grinding belt, thereby providing working positions at different heights to meet various grinding needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of a blade grinding device according to the present invention;

[0016] Figure 2 yes Figure 1 A schematic diagram showing the interaction between one of the follower reversing wheels and the device plate;

[0017] Figure 3 yes Figure 2 Schematic diagram of the installation sleeve;

[0018] Figure 4 yes Figure 3 The right view;

[0019] Figure 5 This is a schematic diagram showing the state of the grinding belt when it only passes around the grinding wheel located at the upper part of the present invention;

[0020] Figure 6 This is a schematic diagram showing the state of the grinding belt when it only passes around the grinding wheel located at the lower position in this utility model;

[0021] Figure 7 yes Figure 1 Enlarged view of point A in the image;

[0022] In the diagram: 1. Grinding belt; 2. Grinding wheel; 3. Lower working wheel assembly; 4. Working wheel; 5. Upper working wheel assembly; 6. Device plate; 7. Drive wheel; 8. Follower reversing wheel; 9. Upper reversing wheel assembly; 10. Lower reversing wheel assembly; 11. Adjusting bolt; 12. Fixing plate; 13. Working rod; 14. Bearing; 15. Reversing wheel cylinder; 16. Reversing wheel shaft; 17. Key bar; 18. Outer bolt; 19. Center bolt; 20. Mounting sleeve; 21. Connecting flange; 22. Center bolt hole; 23. Outer bolt hole; 24. Device base. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0027] One embodiment of the blade grinding device of this utility model is, for example... Figures 1-7 As shown: It includes a device base 24, on which a device plate 6 with a thickness extending in the front-rear direction is fixed. The device plate 6 is provided with an upper reversing wheel group 9 and a lower reversing wheel group 10. In this embodiment, in the upper reversing wheel group 9, one of the reversing wheels is a driving wheel 7 driven by a motor, and the other reversing wheels are follower reversing wheels 8. There are two follower reversing wheels 8 in the upper reversing wheel group.

[0028] The lower reversing wheel assembly contains four follower reversing wheels, with the diameter of the driving wheel 7 being larger than the diameter of each follower reversing wheel.

[0029] Two work wheel groups are arranged vertically and horizontally between the upper reversing wheel group 9 and the lower reversing wheel group 10 on the device plate. The upper work wheel group is called the upper work wheel group 5, and the lower work wheel group is called the lower work wheel group 3. Each work wheel group includes two work wheels 4 arranged vertically and horizontally. A work rod 13 is arranged between the upper and lower work wheels on the device plate. A grinding wheel 2 is rotatably mounted on the right end of the work rod 13. The grinding wheel 2 is located on the right side of the device plate 6. The left and right positions of the work rod 13 are adjustable.

[0030] In this embodiment, the axes of the drive wheel, the follower reversing wheel, the working wheel, and the grinding wheel all extend in the front-to-back direction.

[0031] In this embodiment, the adjustable left and right position of the working rod is achieved by the following means: a fixing plate 12 is fixed on the device plate between the two corresponding working wheels. The right end of the fixing plate 12 protrudes to the right from the device plate 6. The fixing plate 12 is provided with a plurality of fixing plate bolt holes spaced apart in the left and right direction. The working rod is provided with a plurality of working rod bolt holes spaced apart in the left and right direction. In this embodiment, there are five fixing plate bolt holes and two working rod bolt holes. In use, adjusting bolts 11 are inserted into the two working bolt holes and the corresponding fixing plate bolt holes to fix the working rod after it moves.

[0032] Each reversing wheel in the upper reversing wheel group and each reversing wheel in the lower reversing wheel group has a grinding belt 1 wrapped around it. The grinding belt 1 has at least two working states: wrapping around a single grinding wheel and wrapping around all grinding wheels simultaneously.

[0033] Each follower reversing wheel has the same connection structure with the device plate. Now, only the structure of one follower reversing wheel will be described in detail. The follower reversing wheel includes a reversing wheel shaft 16 and a reversing wheel cylinder 15 that rotates with the reversing wheel shaft 16 through a bearing 14. The grinding belt 1 is in contact with the reversing wheel cylinder 15. The length of the reversing wheel cylinder 15 is at least twice the width of the grinding belt.

[0034] The device plate has mounting holes and mounting sleeves 20 corresponding to the follower reversing wheel. The reversing wheel cylinder 15 is located in front of the mounting hole. The mounting sleeve 20 is inserted into the mounting hole from back to front. The rear end of the mounting sleeve 20 has a connecting flange 21. The connecting flange 21 is fixedly connected to the device plate 6 by the outer bolt 18. The reversing wheel shaft 16 is inserted into the inner hole of the mounting sleeve from front to back. The reversing wheel shaft 16 and the mounting sleeve 20 are anti-rotationally engaged by a key 17. The reversing wheel shaft is provided with a wheel axle keyway. The inner wall of the mounting sleeve is provided with a mounting sleeve keyway that mates with the wheel axle keyway. The key 17 is fitted into the wheel axle keyway and the mounting sleeve keyway.

[0035] The rear end of the reversing wheel axle is fixedly connected to the mounting sleeve 20 by a central bolt 19. In this embodiment, there is one central bolt 19 and four peripheral bolts 18, which are arranged circumferentially around the central bolt.

[0036] Figure 4 In the diagram, item 22 represents the center bolt hole through which the center bolt passes; item 23 represents the outer bolt hole through which the outer bolts pass. The installation process of the follower reversing wheel is as follows: First, insert the mounting sleeve into the mounting hole from back to front, and use the outer bolts to fix the device plate to the mounting sleeve. Then, insert the reversing wheel shaft into the mounting sleeve from front to back, and use the center bolt to fix the reversing wheel shaft to the mounting sleeve.

[0037] In use, the blade grinding device in this embodiment can provide three working states. The first working state is as follows: Figure 1 As shown: When the two working rods move to the left, the grinding belt can simultaneously wrap around the two grinding wheels, allowing the grinding belt at the corresponding grinding wheel position to grind the blades. This enables simultaneous grinding of two blades at different heights; the second working state is as follows... Figure 5 As shown, the upper working rod moves to the right, and the grinding belt only passes around the upper grinding wheel, where the grinding belt at the upper grinding wheel position performs the grinding work on the blade; the third working state is as follows. Figure 6 As shown, the lower working rod moves to the right, and the grinding belt wraps around the lower grinding wheel. The grinding belt at the lower grinding wheel position grinds the blades. In this embodiment, a single grinding belt can provide multiple grinding states. In addition, the overall length of the grinding belt exceeds three meters, the usable grinding area of ​​the grinding belt is large, and each grinding belt can handle a large number of blades, eliminating the need for frequent grinding belt replacements and helping to improve grinding efficiency.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A blade grinding device, characterized in that: The device includes a plate extending in the front-to-back direction, an upper reversing wheel set and a lower reversing wheel set. At least two working wheel sets arranged at intervals in the vertical direction are arranged between the upper and lower reversing wheel sets on the device plate. Each working wheel set includes two working wheels arranged at intervals in the vertical direction. A working rod is arranged between the upper and lower working wheels on the device plate. A grinding wheel is rotatably mounted on the right end of the working rod. The grinding wheel is located on the right side of the device plate. The left and right positions of the working rod are adjustable. At least one reversing wheel in the upper reversing wheel set is a driving wheel driven by a motor. A grinding belt is wound around each reversing wheel in the upper reversing wheel set and each reversing wheel in the lower reversing wheel set. The grinding belt has at least two working states: individually winding around a corresponding grinding wheel and simultaneously winding around all corresponding grinding wheels.

2. The blade grinding device according to claim 1, characterized in that: The diameter of the drive wheel is larger than the diameters of the other directional wheels in the upper directional wheel set and the diameters of the directional wheels in the lower directional wheel set.

3. The blade grinding device according to claim 1, characterized in that: There are two sets of working wheels.

4. The blade grinding device according to claim 1, characterized in that: A fixing plate is fixed on the device plate between two corresponding working wheels. The right end of the fixing plate protrudes to the right from the device plate. The fixing plate is provided with multiple fixing plate bolt holes spaced apart in the left and right direction. The working rod is provided with multiple working rod bolt holes spaced apart in the left and right direction.

5. The blade grinding device according to any one of claims 1 to 4, characterized in that: Both the upper and lower reversing wheel sets include follower reversing wheels that are driven to rotate by the grinding belt. The follower reversing wheel includes a reversing wheel shaft and a reversing wheel cylinder that rotates with the reversing wheel shaft through a bearing. The grinding belt contacts and engages with the reversing wheel cylinder. The length of the reversing wheel cylinder is at least twice the width of the grinding belt.

6. The blade grinding device according to claim 5, characterized in that: The device plate has mounting holes and mounting sleeves corresponding to the follower reversing wheel. The reversing wheel cylinder is located in front of the mounting hole. The mounting sleeve is inserted into the mounting hole from back to front. The rear end of the mounting sleeve has a connecting flange. The connecting flange is fixedly connected to the device plate by the outer bolts. The reversing wheel shaft is inserted into the inner hole of the mounting sleeve from front to back. The reversing wheel shaft and the mounting sleeve are anti-rotationally engaged by a key.

7. The blade grinding device according to claim 6, characterized in that: The rear end of the reversing wheel axle is fixedly connected to the mounting sleeve by a center bolt.

Images