Flange sealing surface flattening device

Abstract

The utility model relates to the technical field of flange flattening, and discloses a flange sealing surface flattening device which comprises a rectangular housing, the right end of the rear side of the rectangular housing is fixedly connected with a first supporting block, the right side of the first supporting block is rotatably connected with a connecting rod, and the left end of the connecting rod penetrates through the first supporting block and is fixedly connected with a first gear. A spring is arranged at the left end of the outer side of the connecting rod, a clamping gear is fixedly connected to the middle of the left side of the first gear, second supporting blocks are fixedly connected to the left side and the right side of the rear wall of the rectangular housing, the left end and the right end of a transmission rod penetrate through the corresponding second supporting blocks, and a gear sleeve is fixedly connected to the right end of the transmission rod. According to the flange flattening device, the transmission rod can drive the first gear to rotate through the gear sleeve and the clamping gear, and then the first gear drives the lead screw to rotate, so that the tool rest can be driven to move while the device rotates, and a flange can be conveniently flattened.

Description

Technical Field

[0001] This utility model relates to the field of flange leveling technology, and in particular to a flange sealing surface leveling device. Background Technology

[0002] A flange, also called a flange plate or flange, is a part used to connect shafts to each other. It is used for connecting pipe ends, and also for connecting two pieces of equipment at the inlet and outlet. A flange has several bolt holes, and bolts are used to tightly connect two flanges together, forming a sealed channel between the pipes or equipment, thus serving the functions of connection, sealing and fixing.

[0003] Over time and with the continuous operation of equipment, flange sealing surfaces are prone to problems such as wear, scratches, and corrosion. This not only leads to a decline in sealing performance and causes media leakage, but may also pose safety hazards and seriously threaten the stable operation of production. At this time, a flange sealing surface repair device is needed.

[0004] Traditional flange leveling usually involves using an angle grinder. Since flanges are fixed with multiple bolts, especially equipment flanges which are often welded, disassembly requires removing the flange, which is a cumbersome and time-consuming process. This does not allow for quick flange maintenance. Furthermore, manual grinding cannot restore the water ripple pattern on the flange sealing surface during leveling, affecting the sealing effect and incurring high costs. This reduces the practicality of the device and fails to meet the needs of users. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a flange sealing surface leveling device, which aims to improve the problem of the cumbersome flange sealing surface leveling work in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a flange sealing surface leveling device, comprising a rectangular cover, a first support block fixedly connected to the rear right end of the rectangular cover, a connecting rod rotatably connected to the right side of the first support block, the left end of the connecting rod penetrating the first support block and fixedly connected to a first gear, a spring provided at the outer left end of the connecting rod, a locking gear fixedly connected to the middle left side of the first gear, and second support blocks fixedly connected to both the left and right sides of the rear wall of the rectangular cover, with the same transmission rod rotatably connected to adjacent second support blocks, the left and right ends of the transmission rod penetrating the corresponding second support blocks. A gear sleeve is fixedly connected to the right end of the transmission rod, and a second gear is fixedly connected to the left end of the transmission rod. An inner groove is formed on the left side of the rear wall of the rectangular cover. A rotating rod is rotatably connected to the rear side of the inner groove. A worm gear is fixedly connected to the outer side of the rotating rod. A secondary gear is fixedly connected to the right side of the worm gear. The secondary gear meshes with the second gear. A hollow worm is rotatably connected to the middle of the inner side of the inner groove. The hollow worm meshes with the worm gear. Both the upper and lower ends of the hollow worm penetrate the rectangular cover. A moving component is provided on the front side of the rectangular cover, and a fixing mechanism is provided on the lower side of the rectangular cover. The fixing mechanism is used to facilitate the fixing of the device to the flange.

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

[0008] The fixing mechanism includes a threaded rod, which is fixedly connected to the inner side of the hollow worm gear. The bottom end of the threaded rod passes through the hollow worm gear and is threadedly connected to a pressing block. A support plate is provided on the outer side of the pressing block. Mounting grooves are provided around the outer side of the support plate. Each of the mounting grooves contains a locking block. One side of each locking block has an inclined surface. A locking groove is provided around the outer side of the pressing block. Each locking block engages with a corresponding locking groove.

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

[0010] The rectangular cover has fixed plates fixedly connected to both the left and right sides of its front wall. The middle of each adjacent side of the two fixed plates is rotatably connected to the same lead screw. The right end of the lead screw passes through the fixed plate and is fixedly connected to a long gear. The long gear meshes with the first gear. A slider is threaded to the outside of the lead screw. A tool holder is provided on the front side of the slider. A cutter head is provided in the middle of the front side of the tool holder.

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

[0012] The top of the support plate is provided with a fixing piece, and the inner size of the slot matches the size of the card block.

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

[0014] The top of the fixing plate is threaded with multiple bolts at equal intervals, and the bottom ends of the multiple bolts all penetrate the fixing plate and are threadedly connected to the slider.

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

[0016] A handwheel is fixedly connected to the right end of the connecting rod, and a handle is fixedly connected to the top right side of the rectangular cover.

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

[0018] Limiting rods are fixedly connected to the upper and lower ends of adjacent sides of the two fixed plates, and the same slider passes through the outer side of the two limiting rods.

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

[0020] Screws are threaded at the four corners of the front side of the tool holder, and the rear ends of the screws all penetrate the tool holder and are threadedly connected to the slider.

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

[0022] 1. In this utility model, the overall device that rotates by pulling the handle has a hollow worm that is stationary during rotation. The worm wheel meshes with the hollow worm, and the worm wheel drives the transmission rod to rotate through the transmission of the secondary gear and the second gear. The transmission rod then drives the first gear to rotate through the gear sleeve and the locking gear. The first gear then drives the lead screw to rotate. This allows the tool holder to move while the device is rotating, which facilitates the leveling of the flange. This improves the practicality of the device and meets the needs of the user.

[0023] 2. In this utility model, when the threaded rod rotates, the bottom pressing block will move upward accordingly. Since the inner side of the pressing block is designed with a slope, the outer groove of the pressing block will push multiple pressing blocks to move outward, so that they can contact the inner side of the flange. This makes it easy to fix the device to the inner side of the flange, which is convenient for subsequent use of the device to level the flange and reduces the workload of the workers. Attached Figure Description

[0024] Figure 1 This is a perspective view of a flange sealing surface leveling device proposed in this utility model;

[0025] Figure 2 This is a rear view of a flange sealing surface leveling device proposed in this utility model;

[0026] Figure 3This is a schematic diagram of the gear sleeve structure of a flange sealing surface leveling device proposed in this utility model;

[0027] Figure 4 This is a partial structural schematic diagram of a flange sealing surface leveling device proposed in this utility model;

[0028] Figure 5 This is a partial structural exploded view of a flange sealing surface leveling device proposed in this utility model.

[0029] Legend:

[0030] 1. Rectangular cover; 2. Fixing mechanism; 201. Threaded rod; 202. Extrusion block; 203. Support plate; 204. Mounting groove; 205. Locking block; 206. Inclined surface; 207. Locking groove; 3. First support block; 4. Connecting rod; 5. First gear; 6. Spring; 7. Locking gear; 8. Second support block; 9. Transmission rod; 10. Gear sleeve; 11. Second gear; 12. Inner groove; 13. Rotating rod; 14. Secondary gear; 15. Worm gear; 16. Hollow worm; 17. Fixing plate; 18. Lead screw; 19. Long gear; 20. Slider; 21. Tool holder; 22. Tool head; 23. Fixing plate; 24. Bolt; 25. Screw; 26. Handwheel; 27. Handle; 28. Limiting rod. Detailed Implementation

[0031] 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.

[0032] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a flange sealing surface leveling device, comprising a rectangular cover 1, a first support block 3 fixedly connected to the rear right end of the rectangular cover 1, a connecting rod 4 rotatably connected to the right side of the first support block 3, a first gear 5 fixedly connected to the left end of the connecting rod 4 passing through the first support block 3, the connecting rod 4 driving the first gear 5 to rotate, a spring 6 provided at the outer left end of the connecting rod 4, and a locking gear 7 fixedly connected to the middle left side of the first gear 5, the locking gear 7 rotating with the first gear 5, driving the first gear 5 to rotate, and the left and right sides of the rear wall of the rectangular cover 1 are fixedly connected to... A second support block 8 is connected to each of the two adjacent second support blocks 8, and each is rotatably connected to the same transmission rod 9. The left and right ends of the transmission rod 9 pass through the corresponding second support block 8. A gear sleeve 10 is fixedly connected to the right end of the transmission rod 9, and a second gear 11 is fixedly connected to the left end of the transmission rod 9. The second gear 11 will drive the transmission rod 9 to rotate. An inner groove 12 is opened on the left side of the rear wall of the rectangular cover 1. A rotating rod 13 is rotatably connected to the rear side of the inner groove 12. A worm gear 15 is fixedly connected to the outer side of the rotating rod 13. A secondary gear 14 is fixedly connected to the right side of the worm gear 15. The secondary gear 14 and the second gear 15 are connected to the second gear 10. Gear 11 meshes with the inner groove 12, and a hollow worm 16 is rotatably connected to the inner center of the groove. The hollow worm 16 meshes with the worm wheel 15. When the worm wheel 15 rotates, the secondary gear 14 on the right side will drive the second gear 11 to rotate. The upper and lower ends of the hollow worm 16 pass through the rectangular cover 1. A moving component is provided on the front side of the rectangular cover 1, and a fixing mechanism 2 is provided on the lower side of the rectangular cover 1. The fixing mechanism 2 is used to facilitate the fixing of the device to the flange. Fixing plates 17 are fixedly connected to the left and right sides of the front wall of the rectangular cover 1. The middle of the adjacent side of the two fixing plates 17 is rotatably connected to the same thread. The right end of the rod 18 and the lead screw 18 passes through the fixing plate 17 and is fixedly connected to the long gear 19. The long gear 19 meshes with the first gear 5. When the first gear 5 rotates, the long gear 19 will drive the lead screw 18 to rotate. The outer side of the lead screw 18 is threaded with a slider 20. A tool holder 21 is provided on the front side of the slider 20. When the lead screw 18 rotates, the slider 20 will drive the tool holder 21 to move. A cutter head 22 is provided in the middle of the front side of the tool holder 21. The right end of the connecting rod 4 is fixedly connected to a handwheel 26. The top right side of the rectangular cover 1 is fixedly connected to a handle 27. The handle 27 makes it convenient for the operator to rotate the device.

[0033] Specifically, when using this device, first turn the handwheel 26. When the handwheel 26 is turned, the rotation of the handwheel 26 is transmitted to the long gear 19 through the meshing of the first gear 5, causing the lead screw 18 to start rotating. As the lead screw 18 rotates, the slider 20 moves accordingly, and the movement of the slider 20 drives the tool holder 21 to move. When the cutter head 22 reaches the edge of the flange sealing surface, push the handwheel 26 to the left. At this time, the locking gear 7 will tightly engage with the gear sleeve 10. Then pull the handle 27 to rotate the entire device. Since the hollow worm 16 remains stationary during rotation, and the worm wheel 15 meshes with the hollow worm 16, the worm wheel 15 will rotate as the device rotates. The rotation of the worm wheel 15, through the transmission action of the secondary gear 14 and the second gear 11, enables the transmission rod 9 to rotate. The rotation of the transmission rod 9, through the cooperation of the gear sleeve 10 and the locking gear 7, will drive the first gear 5 to rotate. This allows the movement of the tool holder 21 to be controlled while the device rotates, thus facilitating and quickly completing the leveling work on the flange sealing surface, improving the practicality of the device and meeting the needs of users.

[0034] Reference Figure 1 , Figure 2 and Figure 5 The fixing mechanism 2 includes a threaded rod 201, which is fixedly connected to the inner side of the hollow worm gear 16. The bottom end of the threaded rod 201 passes through the hollow worm gear 16 and is threadedly connected to a pressing block 202. When the threaded rod 201 rotates, the pressing block 202 will move accordingly. A support plate 203 is provided on the outer side of the pressing block 202. The support plate 203 has mounting grooves 204 on all four sides. Each mounting groove 204 has a locking block 205 inside. The mounting groove 204 is used to place the locking block 205. Each side of the locking block 205 has an inclined surface 206. The pressing block 202 has a locking groove 207 on all four sides. The locking blocks 205 are respectively engaged with the corresponding locking grooves 207. When the pressing block 202 moves, it will push the locking block 205 to move outward.

[0035] Specifically, when it is necessary to fix the device to the flange, first rotate the threaded rod 201. As the threaded rod 201 rotates, the pressing block 202 at its bottom moves upward. Since the inner side of the clamping block 205 is designed as a slope 206, when the pressing block 202 moves upward, the clamping groove 207 will correspondingly push multiple clamping blocks 205 to move outward, so that the clamping blocks 205 can make tight contact with the inner side of the flange, thereby conveniently fixing the device to the inner side of the flange. This makes it easier to use the device to perform flange leveling operations and reduces the workload of the workers.

[0036] Reference Figure 1 and Figure 2The top of the support plate 203 is provided with a fixing plate 23. The inner size of the slot 207 matches the size of the block 205. The top of the fixing plate 23 is threaded with multiple bolts 24 at equal intervals. The bottom ends of the multiple bolts 24 all pass through the fixing plate 23 and are threadedly connected to the slider 20. The fixing plate 23 can be removed by removing the multiple bolts 24.

[0037] Specifically, the fixing piece 23 is used to fix the card block 205. The inner size of the card slot 207 matches the size of the card block 205, so that the card block 205 will not wobble. The fixing piece 23 can be removed by removing multiple bolts 24.

[0038] Reference Figure 1 Limiting rods 28 are fixedly connected to the upper and lower ends of adjacent sides of the two fixed plates 17. The outer sides of the two limiting rods 28 pass through the same slider 20. The limiting rods 28 can limit the movement of the slider 20. Screws 25 are threaded at the four corners of the front side of the tool holder 21. The rear end of the screws 25 passes through the tool holder 21 and is threaded to the slider 20. The tool holder 21 can be disassembled by removing multiple screws 25.

[0039] Specifically, the limit rod 28 can limit the movement of the slider 20, so that the slider 20 can move along with the lead screw 18 when it rotates, and the tool holder 21 can be removed by removing multiple screws 25.

[0040] Working principle: When using this device, pull the handwheel 26 to the right. Since the first gear 5 meshes with the long gear 19, when the handwheel 26 rotates, the screw 18 can be rotated through the transmission of the first gear 5 and the long gear 19. The slider 20 will then drive the tool holder 21 to move. When the tool head 22 moves to the edge of the flange sealing surface, push the handwheel 26 to the left to make the locking gear 7 engage with the gear sleeve 10. At this time, pull the handle 27 to rotate the whole device. Since the hollow worm 16 is stationary when rotating, and the worm wheel 15 meshes with the hollow worm 16, the worm wheel 15 will drive the transmission rod 9 to rotate through the transmission of the auxiliary gear 14 and the second gear 11. At this time, the transmission rod 9 will drive the first gear 5 to rotate through the gear sleeve 10 and the locking gear 7. Thus, the tool holder 21 can be moved while the device is rotating, which makes it convenient to perform the leveling work on the flange.

[0041] Furthermore, when it is necessary to fix the device to the flange, the threaded rod 201 is rotated. When the threaded rod 201 rotates, the pressing block 202 at the bottom will move upward. Since the inner side of the clamping block 205 is designed with a slope 206, when the pressing block 202 rises, the clamping groove 207 will push multiple clamping blocks 205 to move outward, so that they can contact the inner side of the flange. This allows the device to be easily fixed to the inner side of the flange, making it convenient to use the device to level the flange later.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flange face straightening device comprising a rectangular housing (1) characterised in that: The right end of the rear side of the rectangular cover (1) is fixedly connected with a first supporting block (3), the right side of the first supporting block (3) is rotatably connected with a connecting rod (4), the left end of the connecting rod (4) penetrates through the first supporting block (3) and is fixedly connected with a first gear (5), the left end of the connecting rod (4) is provided with a spring (6), the left side of the first gear (5) is fixedly connected with a clamping gear (7), the left and right sides of the rear wall of the rectangular cover (1) are fixedly connected with a second supporting block (8), the adjacent second supporting blocks (8) are rotatably connected with a same transmission rod (9) in sequence, the left and right ends of the transmission rod (9) penetrate through the corresponding second supporting blocks (8), the right end of the transmission rod (9) is fixedly connected with a gear sleeve (10), the left end of the transmission rod (9) is fixedly connected with a second gear (11), the left side of the rear wall of the rectangular cover (1) is provided with an inner groove (12), the inner side of the inner groove (12) is rotatably connected with a rotating rod (13), the outer side of the rotating rod (13) is fixedly connected with a worm gear (15), the right side of the worm gear (15) is fixedly connected with a sub gear (14), the sub gear (14) is meshedly connected with the second gear (11), the inner side of the inner groove (12) is rotatably connected with a hollow worm (16), the hollow worm (16) is meshedly connected with the worm gear (15), the upper and lower ends of the hollow worm (16) penetrate through the rectangular cover (1), the front side of the rectangular cover (1) is provided with a moving assembly, the lower side of the rectangular cover (1) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for conveniently fixing the device with the flange.

2. A device for flattening a sealing surface of a flange according to claim 1, characterized in that: The fixing mechanism (2) comprises a threaded rod (201), the threaded rod (201) is fixedly connected to the inner side of the hollow worm (16), the bottom end of the threaded rod (201) penetrates through the hollow worm (16) and is threadedly connected with an extrusion block (202), the outer side of the extrusion block (202) is provided with a supporting disc (203), the outer side of the supporting disc (203) is provided with a mounting groove (204) around, the inner side of the mounting groove (204) is provided with a clamping block (205), one side of the clamping block (205) is provided with an inclined surface (206), and the outer side of the extrusion block (202) is provided with a clamping groove (207) around.

3. The device of claim 1, wherein: The left and right sides of the front wall of the rectangular cover (1) are fixedly connected with a fixed plate (17), the middle part of one side of the two fixed plates (17) is rotatably connected with a same lead screw (18), the right end of the lead screw (18) penetrates through the fixed plate (17) and is fixedly connected with a long gear (19), the long gear (19) is meshedly connected with the first gear (5), the outer side of the lead screw (18) is threadedly connected with a sliding block (20), the front side of the sliding block (20) is provided with a tool holder (21), and the front side of the tool holder (21) is provided with a tool bit (22).

4. The device of claim 2, wherein: The top of the support disc (203) is provided with a fixed sheet (23), the inner side size of the clamping groove (207) matches the size of the clamping block (205).

5. A device for flattening a sealing surface of a flange according to claim 4, characterized in that: The top of the fixed sheet (23) is equidistantly screw-connected with a plurality of bolts (24), the bottom end of the plurality of bolts (24) penetrates the fixed sheet (23) and is screw-connected with the sliding block (20).

6. The device of claim 1, wherein: The right end of the connecting rod (4) is fixedly connected with a hand wheel (26), and the top right side of the rectangular shell (1) is fixedly connected with a handle (27).

7. The device of claim 3, wherein: The adjacent sides of the two fixed plates (17) are fixedly connected with a limiting rod (28) at the upper end and the lower end, and the outer sides of the two limiting rods (28) penetrate the same sliding block (20).

8. The device of claim 3, wherein: The front side of the tool holder (21) is screw-connected with a screw (25) at the four corners, and the rear end of the screw (25) penetrates the tool holder (21) and is screw-connected with the sliding block (20).

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