A fixing device for down-the-hole hammer maintenance

Abstract

The utility model relates to a down -the -hole impactor maintenance technical field especially relates to a kind of fixing device for down -the -hole impactor maintenance.A kind of fixing device for down -the -hole impactor maintenance, including bottom plate etc., two risers are fixedly connected with bottom plate top interval, the upper side of two risers is rotatably provided with short shaft, two short shafts are fixedly connected with U-shaped beam between, two reinforcing plates are fixedly connected with U-shaped beam middle interval, still including clamping assembly, pushing assembly and limiting component.The utility model can be completed to the clamping fixation of impactor simultaneously by rotating long shaft, save time and effort, reduce the degree of operation complexity, improve maintenance efficiency, applicability aspect, because adjacent clamping plate spacing is adjustable, can adapt to different diameter model impactor, in addition, with angle adjusting function, can rotate U-shaped beam adjustment impactor inclination angle, it is convenient to observe and maintain, and angle limit can be realized by block and gear engagement, guarantee maintenance smoothly.

Description

Technical Field

[0001] This utility model relates to the field of down-the-hole impactor repair technology, and in particular to a fixing device for down-the-hole impactor repair. Background Technology

[0002] Patent publication number CN220218428U discloses a fixing device for repairing down-the-hole impactors, which can quickly fix and control the down-the-hole impactor and ensure its stability during the repair process.

[0003] However, in practice, the above solution has some obvious shortcomings. Operators need to operate the two clamping mechanisms and the two positioning mechanisms independently, which undoubtedly increases the complexity of the operation, makes the fixing process more troublesome, and reduces maintenance efficiency. Moreover, the device has limited applicability, only able to fix a single type of impactor. Furthermore, the device lacks angle adjustment functionality, making it impossible to adjust the angle of the impactor according to maintenance needs, which causes considerable inconvenience for maintenance personnel when observing and operating the impactor. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a fixing device for the maintenance of down-the-hole impactors.

[0005] The technical solution is as follows: A fixing device for repairing down-the-hole impactors includes a base plate, upright plates, short shafts, a U-shaped beam, and reinforcing plates. Two upright plates are fixedly connected to the top of the base plate at intervals. Short shafts are rotatably mounted on the upper side of each of the two upright plates. A U-shaped beam is fixedly connected between the two short shafts. Two reinforcing plates are fixedly connected to the middle of the U-shaped beam at intervals. The device also includes a clamping assembly, a pushing assembly, and a limiting assembly. Clamping assemblies for clamping and fixing the impactor are provided on the left and right sides of the U-shaped beam. A pushing assembly for pushing the clamping assembly to complete the clamping action is provided on both the U-shaped beam and the clamping assembly. A limiting assembly is provided on both the upright plates and the short shafts to limit the rotation angle of the short shafts.

[0006] As a further preferred embodiment, the clamping assembly includes a placement platform, guide rods, bidirectional lead screws, L-shaped plates, mounting blocks, and clamping plates. The placement platform is fixedly connected to the top center of the U-shaped beam. Guide rods are fixedly connected to both the left and right sides of the U-shaped beam. L-shaped plates are slidably mounted on both the front and rear sides of the guide rods. Bidirectional lead screws are rotatably connected to both the left and right sides of the U-shaped beam. The two bidirectional lead screws pass through adjacent L-shaped plates and are threaded together. Mounting blocks are fixedly connected to the upper side of each L-shaped plate, and clamping plates are fixedly connected to each mounting block.

[0007] As a further preferred embodiment, the driving assembly includes a fixed base, a long shaft, a worm, a worm wheel, and a hand-tightening nut. Fixed bases are fixedly connected to both sides of the U-shaped beam, and a long shaft is rotatably connected between the two fixed bases. The long shaft passes through two reinforcing plates, and worms are fixedly connected to both sides of the long shaft. Worm wheels are fixedly connected to the middle of the two bidirectional lead screws, and adjacent worms and worm wheels mesh with each other. Hand-tightening nuts are fixedly connected to both ends of the long shaft.

[0008] As a further preferred embodiment, the limiting assembly includes a connecting shaft, a gear, a mounting plate, an L-shaped rod, a locking block, and a return spring. The connecting shaft is fixedly connected to the end of the front short shaft, and the gear is fixedly connected to the connecting shaft. The mounting plate is fixedly connected to the front upright plate, and an L-shaped rod is slidably disposed in the middle of the mounting plate. A locking block is fixedly connected to the upper end of the L-shaped rod, and a return spring is connected between the locking block and the mounting plate.

[0009] As a further preferred option, it also includes a pin and a magnet. A pin is inserted in the middle of the mounting plate, which can pass through the L-shaped rod, and a magnet is fixedly connected to the pin.

[0010] As a further preferred option, the clamps are made of rubber.

[0011] This utility model has the following advantages: It can simultaneously clamp and fix the impactor by rotating the long shaft, saving time and effort, reducing the complexity of operation, and improving maintenance efficiency. In terms of applicability, since the spacing between adjacent clamping plates is adjustable, it can be adapted to impactors of different diameters. In addition, it has an angle adjustment function, and the U-shaped beam can be rotated to adjust the tilt angle of the impactor, which is convenient for observation and maintenance. Furthermore, the angle can be limited by the engagement of the locking block and gear, ensuring smooth maintenance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the fixed base, long shaft, and worm gear of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the connecting shaft, gear, and mounting plate of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the L-shaped rod, locking block, and pin of this utility model.

[0016] The components are: 1-base plate, 2-vertical plate, 21-short shaft, 22-U-shaped beam, 23-reinforcing plate, 31-placement platform, 32-guide rod, 33-double-acting screw, 34-L-shaped plate, 35-mounting block, 36-clamping plate, 41-fixed seat, 42-long shaft, 43-worm gear, 44-worm wheel, 45-hand-tightening nut, 51-connecting shaft, 52-gear, 53-mounting plate, 54-L-shaped rod, 55-clamping block, 56-reset spring, 61-pin, 62-magnetic block. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0018] Example: A fixing device for repairing down-the-hole hammers, such as Figures 1-4 As shown, the device includes a base plate 1, upright plates 2, short shafts 21, U-shaped beams 22, and reinforcing plates 23. Two upright plates 2 are welded and fixed at intervals on the top of the base plate 1. Short shafts 21 are rotatably mounted on the upper side of each of the two upright plates 2. A U-shaped beam 22 is welded and fixed between the two short shafts 21. Two reinforcing plates 23 for enhancing structural strength are welded and fixed at intervals in the middle of the U-shaped beam 22. The device also includes a clamping assembly, a pushing assembly, and a limiting assembly. Clamping assemblies for clamping and fixing the impactor are provided on the left and right sides of the U-shaped beam 22. A pushing assembly for pushing the clamping assembly to complete the clamping action is provided on both the U-shaped beam 22 and the clamping assembly. A limiting assembly is provided on both the upright plates 2 and the short shafts 21 to limit the rotation angle of the short shafts 21.

[0019] like Figure 1 and Figure 2 As shown, the clamping assembly includes a placement platform 31, a guide rod 32, a bidirectional lead screw 33, an L-shaped plate 34, a mounting block 35, and a clamping plate 36. The placement platform 31 is welded and fixed to the top center of the U-shaped beam 22. The guide rods 32 are welded and fixed to both the left and right sides of the U-shaped beam 22. The L-shaped plates 34 are slidably arranged on both the front and rear sides of the guide rods 32. The bidirectional lead screws 33 are rotatably connected to both the left and right sides of the U-shaped beam 22. The two bidirectional lead screws 33 pass through the adjacent L-shaped plates 34 and are threaded together. The mounting blocks 35 are fixed to the upper side of the L-shaped plates 34 by bolts. The clamping plates 36 are glued and fixed to the mounting blocks 35.

[0020] like Figure 2As shown, the driving assembly includes a fixed base 41, a long shaft 42, a worm 43, a worm wheel 44, and a hand-tightening nut 45. Fixed bases 41 are welded and fixed on both sides of the U-shaped beam 22. A long shaft 42 is rotatably connected between the two fixed bases 41. The long shaft 42 passes through two reinforcing plates 23 to support its middle part. Worms 43 are fixed to both sides of the long shaft 42 by bolts. Worm wheels 44 are fixed to the middle of the two bidirectional lead screws 33 by bolts. Adjacent worms 43 and worm wheels 44 mesh with each other. Hand-tightening nuts 45 are welded and fixed to both ends of the long shaft 42.

[0021] like Figure 3 and Figure 4 As shown, the limiting assembly includes a connecting shaft 51, a gear 52, a mounting plate 53, an L-shaped rod 54, a locking block 55, and a return spring 56. The connecting shaft 51 is welded and fixed to the end of the front short shaft 21. The gear 52 is fixed to the connecting shaft 51 by bolts. The mounting plate 53 is welded and fixed to the front upright plate 2. The L-shaped rod 54 is slidably arranged in the middle of the mounting plate 53. The locking block 55 is welded and fixed to the upper end of the L-shaped rod 54. The locking block 55 can engage with the tooth profile of the gear 52 to limit the rotation of the gear 52. The return spring 56 is connected between the locking block 55 and the mounting plate 53, and the return spring 56 is wrapped around the outside of the L-shaped rod 54.

[0022] First, the worker takes an impactor to be repaired and places it on the placement platform 31. Then, the worker holds and tightens the nut 45, causing the long shaft 42 to rotate. Because the worm gear 43 and worm wheel 44 mesh, the rotation of the long shaft 42 drives the two double-acting screws 33 to rotate synchronously. When the double-acting screws 33 rotate, they push the two adjacent L-shaped plates 34 to move closer together along the guide rod 32, thereby causing the adjacent clamping plates 36 to clamp and fix the left and right sides of the impactor. In this way, fixing the impactor can be completed simply by rotating the long shaft 42, saving both time and effort. Furthermore, since the distance between the two adjacent clamping plates 36 can be adjusted... To accommodate impactors of different diameters, after clamping and securing the impactor, the operator presses down the L-shaped rod 54, causing the locking block 55 to separate from the gear 52. At this time, the return spring 56 is compressed. Simultaneously, the operator can rotate the U-shaped beam 22 around the axis of the short shaft 21 to adjust the tilt angle of the impactor, making it easier to observe and maintain the impactor. After adjusting the angle, the operator releases the L-shaped rod 54. Under the reset action of the return spring 56, the L-shaped rod 54 moves upward to reset, pushing the locking block 55 to re-engage with the gear 52, thereby limiting the rotation of the short shaft 21 and keeping the U-shaped beam 22 in the adjusted angular position.

[0023] like Figure 3As shown, it also includes a pin 61 and a magnet 62. The pin 61 is inserted in the middle of the mounting plate 53. The pin 61 can pass through the L-shaped rod 54. The magnet 62 is glued and fixed on the pin 61.

[0024] By setting the pin 61, the L-shaped rod 54 can be prevented from moving due to other external forces, which would cause the locking block 55 to separate from the gear 52 and thus affect the maintenance work. The setting of the magnetic block 62 can make the pin 61 be attracted and fixed on the mounting plate 53, preventing the pin 61 from falling off easily.

[0025] The clamp 36 is made of rubber, which will not damage the surface of the impactor when clamping and fixing it.

[0026] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A fixing device for repairing down-the-hole hammers, comprising a base plate (1), upright plates (2), short shafts (21), a U-shaped beam (22), and reinforcing plates (23), wherein two upright plates (2) are fixedly connected at intervals to the top of the base plate (1), short shafts (21) are rotatably mounted on the upper side of each of the two upright plates (2), a U-shaped beam (22) is fixedly connected between the two short shafts (21), and two reinforcing plates (23) are fixedly connected at intervals in the middle of the U-shaped beam (22), characterized in that: It also includes a clamping assembly, a pushing assembly and a limiting assembly. The left and right sides of the U-shaped beam (22) are provided with clamping assemblies for clamping and fixing the impactor. The U-shaped beam (22) and the clamping assembly are provided with a pushing assembly for pushing the clamping assembly to complete the clamping action. The upright plate (2) and the short shaft (21) are provided with a limiting assembly. The limiting assembly is used to limit the rotation angle of the short shaft (21).

2. The fixing device for repairing down-the-hole hammers as described in claim 1, characterized in that: The clamping assembly includes a placement platform (31), a guide rod (32), a two-way screw rod (33), an L-shaped plate (34), a mounting block (35), and a clamping plate (36). The placement platform (31) is fixedly connected to the top center of the U-shaped beam (22). The guide rod (32) is fixedly connected to both the left and right sides of the U-shaped beam (22). The L-shaped plate (34) is slidably set on both the front and rear sides of the guide rod (32). The two-way screw rod (33) is rotatably connected to both the left and right sides of the U-shaped beam (22). The two two-way screw rods (33) pass through the adjacent L-shaped plates (34) and are threaded together. The mounting block (35) is fixedly connected to the upper side of the L-shaped plate (34). The clamping plate (36) is fixedly connected to the mounting block (35).

3. The fixing device for repairing down-the-hole hammers as described in claim 2, characterized in that: The push assembly includes a fixed seat (41), a long shaft (42), a worm (43), a worm wheel (44), and a hand-tightening nut (45). The U-shaped beam (22) is fixedly connected to the fixed seats (41) on both sides. The long shaft (42) is rotatably connected between the two fixed seats (41). The long shaft (42) passes through the two reinforcing plates (23). The worm (43) is fixedly connected to both sides of the long shaft (42). The worm wheel (44) is fixedly connected to the middle of the two double-acting screws (33). The adjacent worms (43) and worm wheels (44) mesh with each other. The hand-tightening nut (45) is fixedly connected to both ends of the long shaft (42).

4. The fixing device for repairing down-the-hole hammers as described in claim 3, characterized in that: The limiting assembly includes a connecting shaft (51), a gear (52), a mounting plate (53), an L-shaped rod (54), a locking block (55), and a return spring (56). The end of the front short shaft (21) is fixedly connected to the connecting shaft (51), the gear (52) is fixedly connected to the connecting shaft (51), the mounting plate (53) is fixedly connected to the front upright plate (2), the L-shaped rod (54) is slidably arranged in the middle of the mounting plate (53), the locking block (55) is fixedly connected to the upper end of the L-shaped rod (54), and the return spring (56) is connected between the locking block (55) and the mounting plate (53).

5. A fixing device for repairing down-the-hole hammers as described in claim 4, characterized in that: It also includes a pin (61) and a magnet (62). The pin (61) is inserted in the middle of the mounting plate (53). The pin (61) can pass through the L-shaped rod (54). The magnet (62) is fixedly connected to the pin (61).

6. A fixing device for repairing down-the-hole hammers as described in claim 5, characterized in that: The clamp (36) is made of rubber.

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