Tunnel fan blade correction and verification device

Abstract

The utility model relates to the technical field of fan blade processing, and discloses a tunnel fan blade correction and verification device which comprises a bottom plate, a plurality of second sliding grooves are formed in the front side and the rear side of the bottom plate, a plurality of clamping grooves are formed in the bottom of the bottom plate, and fixing blocks are fixedly connected to the four corners of the bottom of the bottom plate. A movable block is arranged at the bottom of the fixed block, guide grooves are formed in the front and rear sides of the movable block and the fixed block, a connecting rod is slidably connected to the inner wall of the second sliding groove, first sliding rods are fixedly connected to the front and rear sides of the bottom of the connecting rod, and a plurality of T-shaped blocks are fixedly connected to the inward sides of the first sliding rods; the outward side of the top of the connecting rod is fixedly connected with a hollow rod. According to the utility model, the second sliding rod is pulled downwards to compress the spring and move downwards to be separated from the inner wall of the clamping groove, so that the aim of quickly adjusting the levelness of the device is fulfilled, the practicability is improved, the success cost is reduced, and the debugging difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan blade processing, in particular to a correction and verification device for tunnel fan blades. Background Technique

[0002] Tunnel fans are ventilators used in subways, tunnels, and enclosed vehicle buildings. They must operate reliably under very different load and environmental conditions during long-term use. Especially when using ventilators in the form of smoke exhaust fans in subways and / or tunnels, there are requirements for the high-temperature usability of the ventilators from subway operators and tunnel operators. It is required that the fan can operate normally in a high-temperature environment of 400°C. Therefore, the selection of its materials is particularly important.

[0003] To reduce weight, the conventional material for fan blades is aluminum alloy. However, this material will creep at high temperatures above 300°C, making it difficult to meet the strength requirements and withstand environmental erosion. To meet the above requirements, the blade material is selected as high-temperature austenitic cast steel, which can adapt to high working temperatures from 425°C to 550°C, and meet the application ability and tolerance under different high-temperature conditions, ensuring its reliability and safety in extreme high-temperature environments.

[0004] In the existing test and correction link of tunnel fan blades, the devices used mostly adjust their level by adding gaskets and adjusting positions. The process is relatively cumbersome, resulting in low practicability, increasing labor costs, and raising the debugging difficulty. Content of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a correction and verification device for tunnel fan blades, aiming to improve the problem that the leveling process of the device used in the existing test and correction link of tunnel fan blades in the prior art is relatively cumbersome, resulting in low practicability and production efficiency.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A correction and verification device for tunnel fan blades, including a bottom plate. A plurality of second chutes are opened on the front and rear sides of the bottom plate. A plurality of card slots are opened at the bottom of the bottom plate. Fixed blocks are fixedly connected to the four corners at the bottom of the bottom plate. A moving block is arranged at the bottom of the fixed block. Guide grooves are opened on the front and rear sides of the moving block and the fixed block. A connecting rod is slidably connected to the inner wall of the second chute. First sliding rods are fixedly connected to the front and rear sides of the bottom of the connecting rod. A plurality of T-shaped blocks are fixedly connected to the inner side of the first sliding rod. A hollow rod is fixedly connected to the outer side of the top of the connecting rod. A second sliding rod is slidably connected to the inner wall of the hollow rod. A spring is fixedly connected to the bottom of the second sliding rod. A third chute is opened on the outer wall of the hollow rod. A correction structure is fixedly connected to the top of the bottom plate. The correction structure is used to correct the shape of the fan blade.

[0007] As a further description of the above technical solution:

[0008] The correction structure includes a platform. A plurality of first chutes are opened at the top of the platform. The inner wall of the first chute is slidably connected with a lower die base. The top of the lower die base is slidably connected with an upper die base. A blade is slidably connected between the adjacent lower die base and upper die base. A pressing rod is fixedly connected to the middle of the top surface of the upper die base.

[0009] As a further description of the above technical solution:

[0010] Handling grooves are opened on the left and right sides of the bottom of the bottom plate. Anti-slip pads I are fixedly connected to the inner walls of the handling grooves.

[0011] As a further description of the above technical solution:

[0012] A handle is slidably connected to the inner wall of the third chute. An anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0013] As a further description of the above technical solution:

[0014] An anti-slip pad II is fixedly connected to the bottom of the moving block. The plurality of fixed blocks are all fixedly connected at the same horizontal height.

[0015] As a further description of the above technical solution:

[0016] A nameplate is threadedly connected to the front side of the bottom plate. Fixing screws are arranged on the outer wall of the nameplate. The inner wall of the fixing screw is threadedly connected to the outer wall of the nameplate.

[0017] As a further description of the above technical solution:

[0018] The guide groove is a guide groove that inclines inwards towards each other. The outer wall of the second sliding rod is slidably connected to the inner wall of the card slot.

[0019] As a further description of the above technical solution:

[0020] A plurality of reinforcing screws are threadedly connected to the bottom of the bottom plate near the edge. The inner wall of the guide groove is slidably connected to the outer wall of the T-shaped block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, by pulling down the second sliding rod to compress the spring and moving downward to disengage from the inner wall of the card slot, and then pulling the connecting rod along the second chute to make the first sliding rod drive the T-shaped block to slide in the guide groove, the moving block is moved upward or downward. Then, the second sliding rod is released and it is bounced upward by the spring into the card slot, achieving the purpose of quickly adjusting the level of the device, improving the practicability, reducing the success cost, and lowering the debugging difficulty.

[0023] 2. In the present utility model, by limiting the lower die base at the top of the platform along the first chute, then placing the blade in the cavity on the inner wall of the lower die base, and then placing the upper die base on the top of the lower die base, and starting the pressure rod to squeeze the blade between the upper die base and the lower die base, the purpose of adjusting and correcting the shape of the tunnel fan blade is achieved, reducing the production loss, improving the manufacturing precision of the product, and enhancing the production efficiency. Description of the Drawings

[0024] Figure 1 is the front three-dimensional view of a tunnel fan blade correction and verification device proposed by the present utility model;

[0025] Figure 2 is Figure 1 the enlarged view of part A of

[0026] Figure 3 is the partial structural schematic diagram of the pressure rod of a tunnel fan blade correction and verification device proposed by the present utility model;

[0027] Figure 4 is the partial structural display diagram of a tunnel fan blade correction and verification device proposed by the present utility model;

[0028] Figure 5 is the partial structural split diagram of a tunnel fan blade correction and verification device proposed by the present utility model;

[0029] Figure 6 is the top view of a tunnel fan blade correction and verification device proposed by the present utility model;

[0030] Figure 7 is the partial structural schematic diagram of the blade of a tunnel fan blade correction and verification device proposed by the present utility model.

[0031] Legend Explanation:

[0032] 1. Base plate; 2. Calibration structure; 201. Platform; 202. First chute; 203. Lower die base; 204. Blade; 205. Upper die base; 206. Pressure bar; 3. Second chute; 4. Card slot; 5. Moving block; 6. Fixed block; 7. Connecting rod; 8. First sliding rod; 9. Fixed screw; 10. T-shaped block; 11. Guide groove; 12. Second sliding rod; 13. Handle; 14. Spring; 15. Hollow rod; 16. Third chute; 17. Reinforcing screw; 18. Handling groove; 19. First anti-slip pad; 20. Nameplate; 21. Anti-slip sleeve; 22. Second anti-slip pad. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to the attached Figure 1 - attached Figure 3 , an embodiment provided by the present invention: a tunnel fan blade calibration and verification device, including a base plate 1. A plurality of second chutes 3 are opened on both the front and rear sides of the base plate 1. A plurality of card slots 4 are opened on the bottom of the base plate 1. The base plate 1 is used to carry the entire device. Fixed blocks 6 are fixedly connected to the four corners of the bottom of the base plate 1. A moving block 5 is arranged at the bottom of the fixed block 6. Guide grooves 11 are opened on the front and rear sides of the moving block 5 and the fixed block 6. The fixed block 6 is used to support the base plate 1. A connecting rod 7 is slidably connected to the inner wall of the second chute 3. First sliding rods 8 are fixedly connected to the front and rear sides of the bottom of the connecting rod 7. The moving block 5 is used to adjust the height of one corner of the base plate 1 up and down. A plurality of T-shaped blocks 10 are fixedly connected to the inner side of the first sliding rod 8. A hollow rod 15 is fixedly connected to the outer side of the top of the connecting rod 7. A second sliding rod 12 is slidably connected to the inner wall of the hollow rod 15. The T-shaped block 10 can slide in the guide groove 11 to guide the movement of the moving block 5. A spring 14 is fixedly connected to the bottom of the second sliding rod 12. A third chute 16 is opened on the outer wall of the hollow rod 15. A calibration structure 2 is fixedly connected to the top of the base plate 1. The spring 14 is used to reset the second sliding rod 12. The calibration structure 2 is used to correct the shape of the fan blade. Handling grooves 18 are opened on the left and right sides of the bottom of the base plate 1. First anti-slip pads 19 are fixedly connected to the inner walls of the handling grooves 18. The first anti-slip pads 19 are to prevent the user's hand from slipping off when carrying through the handling grooves 18;

[0035] Specifically, the guide groove 11 is an inclined groove, and the second sliding rod 12 can slide therein, so as to move the moving block 5 downward along its angle. The spring 14 can move the second sliding rod 12 upward to engage with the clamping groove 4, restricting the second sliding rod 12 to prevent it from sliding. The handling groove 18 is used to provide a force application point for the user to quickly carry the device during handling. The anti-slip pad 19 improves the safety and convenience during handling. The connecting rod 7 is used to drive multiple first sliding rods 8 to move together. The fixed block 6 serves as the support for the entire adjustment and limits the moving block 5 through the same sliding as the T-shaped block 10.

[0036] Please refer to the attached Figure 4 -attached Figure 6 , the calibration structure 2 includes a platform 201. A plurality of first chutes 202 are opened at the top of the platform 201. The inner wall of the first chute 202 is slidably connected with a lower die base 203. The first chute 202 is used to limit the position of the lower die base 203. The top of the lower die base 203 is slidably connected with an upper die base 205. A blade 204 is slidably connected between the adjacent lower die base 203 and upper die base 205. A pressing rod 206 is fixedly connected to the middle of the top surface of the upper die base 205. The pressing rod 206 can press the upper die base 205 towards the lower die base 203.

[0037] Specifically, when the upper die base 205 and the lower die base 203 are pressed up and down, the shape of the blade 204 can be adjusted and calibrated to the required precision. The first chute 202 can guide the lower die base 203 to be limited at the top of the platform 201, thereby ensuring the stability during work. The blade 204 needs to be pre-heated to 500 °C before being pressed by the upper die base 205 and the lower die base 203.

[0038] Please refer to the attached Figure 5 -attached Figure 7 , the guide groove 11 is a guiding groove that inclines inwards towards each other. The outer wall of the second sliding rod 12 is slidably connected with the inner wall of the clamping groove 4. The inner wall of the third chute 16 is slidably connected with a handle 13. The handle 13 is used to help the user pull the second sliding rod 12. An anti-slip sleeve 21 is fixedly connected to the outer wall of the handle 13. A nameplate 20 is threadedly connected to the front side of the bottom plate 1. The anti-slip sleeve 21 can prevent the user from slipping off the handle 13 when pulling it. A fixing screw 9 is provided on the outer wall of the nameplate 20. The inner wall of the fixing screw 9 is threadedly connected with the outer wall of the nameplate 20. A plurality of reinforcing screws 17 are threadedly connected to the bottom of the bottom plate 1 near the edge. The reinforcing screws 17 can strengthen the fixed connection between the bottom plate 1 and the platform 201. The inner wall of the guide groove 11 is slidably connected with the outer wall of the T-shaped block 10. An anti-slip pad 22 is fixedly connected to the bottom of the moving block 5. A plurality of fixed blocks 6 are all fixedly connected at the same horizontal height. The anti-slip pad 22 is to prevent the device from sliding due to vibration during use.

[0039] Specifically, the nameplate 20 carries the identification information of the product, which can help users identify and use the device. The fixing screw 9 can fix the nameplate 20 at the required position. The multiple fixing blocks 6 are all fixedly connected at the same horizontal height, which not only ensures the overall stability of the device structure but also facilitates subsequent maintenance and adjustment work. The anti-slip pad two 22 effectively alleviates the vibration and impact that may occur during the operation of the device, ensuring the smooth operation and long service life of the device.

[0040] Working principle: By pulling down the second sliding rod 12 to squeeze the spring 14 and move it downward into the hollow rod 15, so that it disengages from the engagement with the card slot 4. Then, pull the connecting rod 7 so that the first sliding rod 8 can drive the T-shaped block 10 to slide in the guide groove 11 together. As the angle of the guide groove 11 gradually inclines towards each other, the moving block 5 will move downward to adjust, thereby adjusting the inclination angle of the bottom plate 1 and adjusting it to the horizontal. Then, release the second sliding rod 12 so that it is slid upward by the spring 14 and engages with the card slot 4 to limit the hollow rod 15 and the structure fixed to its bottom.

[0041] During use, first install and position the lower die base 203 on the platform 201 through the first chute 202, preheat the blade 204 to about 500 °C, load it into the lower cavity, and then place the upper die base 205 above the lower die base 203. The blade 204 is located between the upper die base 205 and the lower die base 203. Apply pressure to the upper die through the pressure rod 206 to adjust and correct the shape of the blade 204 until the design accuracy requirements are met.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel fan blade correction and verification device, comprising a bottom plate (1), characterized in that: Both the front and rear sides of the bottom plate (1) are provided with a plurality of second chutes (3), the bottom of the bottom plate (1) is provided with a plurality of card slots (4), and fixing blocks (6) are fixedly connected to the four corners of the bottom of the bottom plate (1). A moving block (5) is arranged at the bottom of the fixing block (6). Guide grooves (11) are provided on the front and rear sides of the moving block (5) and the fixing block (6). A connecting rod (7) is slidably connected to the inner wall of the second chute (3). First sliding rods (8) are fixedly connected to the front and rear sides of the bottom of the connecting rod (7). A plurality of T-shaped blocks (10) are fixedly connected to the inner side of the first sliding rod (8). A hollow rod (15) is fixedly connected to the outer side of the top of the connecting rod (7). A second sliding rod (12) is slidably connected to the inner wall of the hollow rod (15). A spring (14) is fixedly connected to the bottom of the second sliding rod (12). A third chute (16) is provided on the outer wall of the hollow rod (15). A correction structure (2) is fixedly connected to the top of the bottom plate (1), and the correction structure (2) is used to correct the shape of the fan blade.

2. The calibration device for tunnel fan blades according to claim 1, wherein: The correction structure (2) includes a platform (201). A plurality of first chutes (202) are provided on the top of the platform (201). A lower die base (203) is slidably connected to the inner wall of the first chute (202). An upper die base (205) is slidably connected to the top of the lower die base (203). A blade (204) is slidably connected between the adjacent lower die base (203) and upper die base (205). A pressing rod (206) is fixedly connected to the middle of the top surface of the upper die base (205).

3. The calibration device for tunnel fan blades according to claim 1, characterized in that: Handling grooves (18) are provided on the left and right sides of the bottom of the bottom plate (1), and an anti-slip pad one (19) is fixedly connected to the inner wall of the handling groove (18).

4. A tunnel fan blade correction and verification device according to claim 1, characterized in that: A handle (13) is slidably connected to the inner wall of the third chute (16), and an anti-slip sleeve (21) is fixedly connected to the outer wall of the handle (13).

5. A tunnel fan blade calibration and verification device according to claim 1, characterized in that: An anti-slip pad two (22) is fixedly connected to the bottom of the moving block (5), and the plurality of fixing blocks (6) are fixedly connected at the same horizontal height.

6. The calibration device for tunnel fan blades according to claim 1, characterized in that: A nameplate (20) is threadedly connected to the front side of the bottom plate (1), a fixing screw (9) is arranged on the outer wall of the nameplate (20), and the inner wall of the fixing screw (9) is threadedly connected to the outer wall of the nameplate (20).

7. The calibration device for the tunnel fan blade according to claim 1, characterized in that: The guide groove (11) is a guide groove inclined inwards towards each other, and the outer wall of the second sliding rod (12) is slidably connected to the inner wall of the card slot (4).

8. The calibration device for tunnel fan blades according to claim 1, characterized in that: A plurality of reinforcing screws (17) are threadedly connected to the bottom of the bottom plate (1) near the edge, and the outer wall of the T-shaped block (10) is slidably connected to the inner wall of the guide groove (11).

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