Anti-loosening and anti-falling cutting head

Abstract

The utility model discloses an anti-loosening and anti-falling cutting head, which relates to the technical field of cutting heads and comprises a heading head and a sub-connecting column fixedly connected with one end of the heading head. When the child connecting column and the mother connecting column are in butt joint with each other, the push rod can enter the clamping groove through the notch, meanwhile, the push rod drives the locking block fixedly connected to one side to be pushed to the interior of the extending groove through the elastic force brought by the spring, and therefore the child connecting column and the mother connecting column are jointly connected together; the lead screw on one side is utilized to rotate, the sliding plate is driven to abut against the sliding disc and cannot move while the lead screw rotates, and when the tunneling head needs to be overhauled or disassembled, only the pushing trend of the sliding plate and the sliding disc needs to be relieved, the sliding disc slides towards one side, the internal spring is forced to be extruded, and therefore clamping is relieved. The phenomenon that most heading heads are unstable during connection is avoided, the anti-falling effect is improved, meanwhile, the transmission rotating speed ratio of the heading heads cannot be reduced, and output is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting heads, in particular to a cutting head which is prevented from loosening and falling off. Background Art

[0002] China is the world's largest producer of raw coal. During coal mining, the national policy is to give equal importance to mining and excavation, with tunneling taking precedence. Rapid tunneling of coal mine tunnels is an important guarantee for stable and high production of coal mines. Therefore, how to complete tunneling quickly, safely and efficiently has become a new demand. In mining work, a cutting head is needed, which is a rotating component on the tunneling machinery that can directly cut rock.

[0003] After searching, the applicant found that a Chinese patent disclosed "a cutting head for a tunnel boring machine", and its publication number is "CN218376445U", which includes a cutting head body, a material guide trough is provided on the cutting head body in a direction parallel to the side wall, a top cover is installed on the top of the cutting head body, a wear-resistant ring is mounted on the outer wall of the bottom of the cutting head body, and a plurality of working tooth bases are provided on the protruding parts of the side wall of the cutting head body, and the plurality of working tooth bases are located between the top cover and the wear-resistant ring. The tunnel boring machine cutting head of the utility model solves the problem of the need to replace the cutting head due to severe wear of the top of the cutting head body by adding a top cover head on the top to replace the contact between the top of the cutting head body and the rock formation; by adding a wear-resistant ring at the tail of the cutting head body, the tail of the cutting head body is protected from wear, the wear of the cutting head body is greatly reduced, and the work efficiency is improved; by providing a material guide trough on the cutting head body, the discharge space is increased, which can effectively reduce the phenomenon of the cutting head being wrapped by the overall mud-water mixture;

[0004] However, the existing cutting head cannot be always located above the machine transmission structure when it is in use or under maintenance, and needs to have a quick-release effect. However, the formation of the quick-release effect cannot effectively ensure that the cutting head will not fall off during use. Once it falls off, it will not only cause safety hazards, but also damage the cutting head, resulting in a rapid increase in costs. Utility Model Content

[0005] The purpose of the utility model is to provide a cutting head that is prevented from loosening and falling off, so as to solve the problem that the cutting head proposed in the above background technology can meet the requirements of quick disassembly but cannot meet the requirements of preventing loosening and falling off.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a cutting head that prevents loosening and falling off, comprising a tunneling head and a sub-connecting column fixedly connected to one end of the tunneling head, a baffle fixedly connected to one side of the surface of the sub-connecting column, a female connecting column provided on one side of the sub-connecting column, a clamping structure slidably connected to one side of the surface of the sub-connecting column, which can firmly clamp the female connecting column on one side, and clamping structures matching the clamping structure are provided on both sides of the inside of the female connecting column, and anti-loosening structures are fixedly connected on both sides of the surface of the sub-connecting column, which can form a clamping effect on the clamping structure while forming a last protective measure.

[0007] Preferably, the clamping structure includes a sliding disk, a clamping groove, and a spring. The sliding disk is slidably connected to one side of the surface of the sub-connecting column. The two clamping grooves are opened on both sides inside the sliding disk, and the two springs are fixedly connected to one side of the inner wall of the clamping groove.

[0008] Preferably, the clamping structure further comprises a sliding block, and the two sliding blocks are respectively fixedly connected to the side of the two springs away from the inner wall of the clamping groove.

[0009] Preferably, the clamping structure further includes a push rod and a locking block, the two push rods are fixedly connected to the opposite sides of the two sliding blocks, and the two locking blocks are respectively fixedly connected to one side of the surface of the two push rods.

[0010] Preferably, the clamping structure includes a clamping groove and an extension groove, the two clamping grooves are both opened on both sides of the surface of the female connecting column, and the two extension grooves are both opened inside the two clamping grooves.

[0011] Preferably, the two extension grooves match the two locking blocks respectively, and the inner walls of the extension grooves are slidably connected to the surfaces of the locking blocks.

[0012] Preferably, the anti-loosening structure includes a sliding plate and a fixed block, the two sliding plates are respectively slidably connected to the two sides of the surface of the sub-connecting column, and the two fixed blocks are respectively slidably connected to the two sides of the surface of the sub-connecting column.

[0013] Preferably, the anti-loosening structure further includes a screw rod, and the two screw rods are respectively connected to the internal threads of the two fixed blocks, and one end of the two screw rods is rotatably connected to the surfaces of the two sliding plates.

[0014] The technical effects and advantages of the present invention are as follows: when the sub-connecting column and the mother connecting column are docked with each other, the push rod can utilize the notch to enter the interior of the clamping groove, and at the same time the push rod utilizes the elastic force brought by the spring to drive the locking block fixedly connected on one side to move to the interior of the extension groove, so that the sub-connecting column and the mother connecting column are connected together, and a screw rod on one side is used to make it rotate. When the screw rod rotates, it will drive the sliding plate to support the sliding disk and prevent it from moving. When the tunneling head needs to be inspected or disassembled, it is only necessary to release the tendency of the sliding plate and the sliding disk to push the sliding disk to one side, forcing the internal spring to be squeezed, thereby releasing the clamping, avoiding instability when most tunneling heads are connected, thereby improving the anti-falling effect, and at the same time ensuring that the speed ratio of the tunneling head is not weakened, thereby stabilizing the output. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the assembly of the sub-connecting column and the female connecting column of the present invention.

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0018] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0019] In the figure: 1. Tunneling head; 2. Sub-connecting column; 3. Baffle; 4. Female connecting column; 5. Clamping structure; 501. Sliding plate; 502. Clamping groove; 503. Spring; 504. Sliding block; 505. Push rod; 506. Locking block; 6. Clamping structure; 601. Clamping groove; 602. Extension groove; 7. Anti-loosening structure; 701. Sliding plate; 702. Fixed block; 703. Screw. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides Figure 1-4The utility model provides an anti-loosening and falling off cutting head, including heading 1 and the fixed connection of the one end of heading 1 sub connecting column 2, the one side fixed connection of sub connecting column 2 surface has baffle 3, and the one side of sub connecting column 2 is equipped with female connecting column 4, and the one side sliding connection of sub connecting column 2 surface has clamping structure 5, can firmly hold the female connecting column 4 of one side, and the both sides in female connecting column 4 are equipped with the clamping structure 6 matched with clamping structure 5, and the both sides of sub connecting column 2 surface are fixedly connected with anti-loosening structure 7, can form the last protective measure while forming the clamping effect of clamping structure 5, the utility model discloses when the mutual butt joint of sub connecting column 2 and female connecting column 4, make push rod 505 can utilize the gap to enter the inside of clamping groove 601, and push rod 505 utilizes the elastic force of spring 503 again, make push rod 505 drive the lock block 506 fixedly connected on one side to move to the inside of extension groove 602, cause sub connecting column 2 and female connecting column 4 are connected together, and utilize one side screw rod 703, make it produce rotation, and when needing to overhaul or disassembling heading 1, just remove the tendency of sliding plate 701 and sliding disc 501, make sliding disc 501 slide to one side, force the inside spring 503 to extrude, thereby remove clamping, avoid the instability of most heading 1 when connecting, thereby improve the effect of anti-falling, also make the transmission speed ratio of heading 1 not weaken and stabilize output.

[0022] As Figure 1-3 The utility model discloses a clamping structure 5, including sliding disc 501, clamping groove 502, spring 503, sliding disc 501 slidingly connects on the one side of sub connecting column 2 surface, two clamping grooves 502 are all set up in the both sides in sliding disc 501, and two springs 503 are all fixedly connected on the one side of clamping groove 502 inner wall, and clamping structure 5 still includes sliding block 504, and two sliding blocks 504 are respectively fixedly connected on the one side of two springs 503 away from clamping groove 502 inner wall, and clamping structure 5 still includes push rod 505, lock block 506, and two push rods 505 are all fixedly connected on the opposite side of two sliding blocks 504, and two lock blocks 506 are respectively fixedly connected on the one side of two push rod 505 surface.

[0023] As Figure 2-3 The utility model discloses a clamping structure 5, including sliding disc 501, clamping groove 502, spring 503, sliding disc 501 slidingly connects on the one side of sub connecting column 2 surface, two clamping grooves 502 are all set up in the both sides in sliding disc 501, and two springs 503 are all fixedly connected on the one side of clamping groove 502 inner wall, and clamping structure 5 still includes sliding block 504, and two sliding blocks 504 are respectively fixedly connected on the one side of two springs 503 away from clamping groove 502 inner wall, and clamping structure 5 still includes push rod 505, lock block 506, and two push rods 505 are all fixedly connected on the opposite side of two sliding blocks 504, and two lock blocks 506 are respectively fixedly connected on the one side of two push rod 505 surface.

[0024] As Figure 4 shown, the anti-loosening structure 7 includes sliding plates 701, fixed blocks 702, two sliding plates 701 are respectively slidably connected to the two sides of the surface of the sub connecting column 2, two fixed blocks 702 are respectively slidably connected to the two sides of the surface of the sub connecting column 2, the anti-loosening structure 7 further includes lead screws 703, two lead screws 703 are respectively threadedly connected with the interiors of the two fixed blocks 702, and one end of each of the two lead screws 703 is rotatably connected with the surface of each of the two sliding plates 701; the sliding plate 701 can abut against the sliding disc 501 and cannot slide, so that the spring 503 in the sliding disc 501 can drive the sliding block 504 to produce a clamping effect at any time, thereby ensuring the integrity of the device in use.

[0025] The utility model discloses working principle: the utility model discloses when using, first, the female connecting column 4 is butt-jointed with the sub connecting column 2, the spring 503 in the sliding disc 501 will use the elasticity to abut against the sliding block 504 when butt-jointed, make the sliding block 504 drive the push rod 505 at the bottom always be located in one side of the clamping groove 502, the push rod 505 fixedly connected to the bottom surface of the sliding block 504 will use the notch on one side to enter the inside of the clamping groove 601, cause the extension groove 602 can be successfully matched with the lock block 506, so that the female connecting column 4 can be successfully butt-jointed with the sub connecting column 2, and the sub connecting column 2 will form the corresponding speed ratio according to the rotation of the female connecting column 4;

[0026] When butt-jointed, the lead screw 703 can also be rotated, so that the lead screw 703 is threadedly connected with the interior of the fixed block 702, thereby forcing the lead screw 703 to produce a displacement effect, and the sliding plate 701 rotatably connected at one end is used to abut against the sliding disc 501.

[0027] When the butt-jointed effect needs to be released, the effect of the sliding plate 701 abutting against the sliding disc 501 is first released, and then the entire sliding disc 501 is slid to one side, so that the spring 503 in the interior can be compressed, thereby causing the push rod 505 and the lock block 506 to be released from clamping.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as the modifications, equivalent replacements, improvements, etc. are within the spirit and principles of the utility model, they should be included in the protection scope of the utility model.

Claims

1. A cutting head that is prevented from loosening and falling off, comprising a tunneling head (1) and a sub-connecting column (2) fixedly connected to one end of the tunneling head (1), characterized in that: A baffle (3) is fixedly connected to one side of the surface of the sub-connecting column (2), a mother connecting column (4) is provided on one side of the sub-connecting column (2), a clamping structure (5) is slidably connected to one side of the surface of the sub-connecting column (2), and can firmly clamp one side of the mother connecting column (4), and both sides of the inside of the mother connecting column (4) are provided with a clamping structure (6) matching the clamping structure (5), and both sides of the surface of the sub-connecting column (2) are fixedly connected with an anti-loosening structure (7), which can form a last protective measure while forming a clamping effect with the clamping structure (5).

2. The anti-loosening and falling-off cutting head according to claim 1, characterized in that: The clamping structure (5) comprises a sliding disc (501), a clamping groove (502), and a spring (503); the sliding disc (501) is slidably connected to one side of the surface of the sub-connecting column (2); the two clamping grooves (502) are both opened on both sides inside the sliding disc (501); and the two springs (503) are both fixedly connected to one side of the inner wall of the clamping groove (502).

3. The anti-loosening and falling-off cutting head according to claim 2, characterized in that: The clamping structure (5) further comprises a sliding block (504), wherein the two sliding blocks (504) are respectively fixedly connected to one side of the two springs (503) away from the inner wall of the clamping groove (502).

4. The anti-loosening and falling-off cutting head according to claim 3, characterized in that: The clamping structure (5) further comprises a push rod (505) and a locking block (506), wherein the two push rods (505) are fixedly connected to opposite sides of the two sliding blocks (504), and the two locking blocks (506) are respectively fixedly connected to one side of the surface of the two push rods (505).

5. The anti-loosening and falling-off cutting head according to claim 1, characterized in that: The clamping structure (6) comprises a clamping groove (601) and an extension groove (602), wherein the two clamping grooves (601) are both provided on both sides of the surface of the female connecting column (4), and the two extension grooves (602) are both provided inside the two clamping grooves (601).

6. The anti-loosening and falling-off cutting head according to claim 5, characterized in that: The two extension grooves (602) are matched with the two locking blocks (506) respectively, and the inner walls of the extension grooves (602) are slidably connected to the surfaces of the locking blocks (506).

7. The anti-loosening and falling-off cutting head according to claim 1, characterized in that: The anti-loosening structure (7) comprises a sliding plate (701) and a fixed block (702), wherein the two sliding plates (701) are respectively slidably connected to the two sides of the surface of the sub-connecting column (2), and the two fixed blocks (702) are respectively slidably connected to the two sides of the surface of the sub-connecting column (2).

8. The anti-loosening and falling-off cutting head according to claim 1, characterized in that: The anti-loosening structure (7) further comprises a screw rod (703), wherein the two screw rods (703) are respectively connected to the internal threads of the two fixed blocks (702), and one end of the two screw rods (703) is rotatably connected to the surfaces of the two sliding plates (701).

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