Thread locking type quick-release cutter

Abstract

A thread locking type quick-release tool belongs to the technical field of engineering machinery tools and comprises a tool bit, a tool apron and a locking portion, the tool bit is mounted on the tool apron, and the locking portion is mounted in the tool apron and locks the tool bit on the tool apron together with the tool bit. The tool bit comprises a round head, a mounting seat, an inner cavity, a clamping boss and a threaded cylinder, the lower portion of the round head is transited to the mounting seat through an arc, the inner cavity is formed in the mounting seat and is in butt joint with the tool apron in a matched mode, the flange-shaped clamping boss is arranged at the bottom of the inner cavity, and the clamping boss is matched with the locking part to achieve butt joint of the tool bit on the tool apron. A threaded cylinder is arranged in the center in the inner cavity and connected with the locking part, and threads are arranged on the inner wall of the threaded cylinder. The tool apron comprises a seat ring, a mounting groove, an inner core, a tool bar, a center hole, a triangular groove and a hinge hole, the mounting groove is formed in the middle of the seat ring, the inner core extends upwards from the middle of the mounting groove and is sleeved with an inner cavity of the tool bit, and the tool bar extends downwards from the bottom of the seat ring. The locking part comprises a core rod and a pressing plate, and the core rod is arranged in the center hole in a penetrating mode.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery tools, and in particular relates to a thread locking type quick-release tool. Background Art

[0002] In the field of engineering machinery technology, there is a common type of equipment used for crushing, milling mountains, stones and other engineering purposes. One of the more important parts of these mechanical equipment is the cutter. Multiple cutters are usually installed on a cutter head. Due to the harsh working environment, different parts of the cutter are usually made of different materials to ensure that the parts of the cutter that directly contact the material use high-quality materials with excellent performance. Other parts are made of suitable materials according to needs and then assembled to obtain the entire cutter. Moreover, even so, the cutter still needs to be replaced regularly due to wear. Therefore, this kind of cutter needs to have a strong and convenient disassembly and assembly structure. Summary of the invention

[0003] The present invention provides a thread locking quick-release tool to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions: A thread locking quick-release tool comprises a tool head, a tool seat and a locking part. The tool head is mounted on the tool seat, and the locking part is mounted inside the tool seat and connected to the tool head to lock the tool head on the tool seat.

[0005] The cutter head includes a round head, a mounting seat, an inner cavity, a clamping boss and a threaded barrel. The round head is the cutting part of the entire tool. The lower part of the round head transitions to the mounting seat through an arc. The mounting seat has an inner cavity inside. The inner cavity and the cutter seat are docked. The bottom of the inner cavity has a flange-shaped clamping boss. The clamping boss cooperates with the locking part to achieve the docking of the cutter head on the cutter seat. There is a threaded barrel in the center of the inner cavity. The threaded barrel is connected to the locking part, and the inner wall of the threaded barrel has threads.

[0006] The knife seat includes a seat ring, a mounting groove, an inner core, a knife bar, a center hole, a triangular groove, and a hinge hole. The seat ring has a mounting groove in the middle, and the mounting seat of the knife head falls into the seat ring after being locked. The inner core extends upward from the middle of the mounting groove, and the inner core is sleeved and installed in the inner cavity of the knife head. The knife bar extends downward from the bottom of the seat ring. The center of the inner core has a center hole that reaches downward to the knife bar, and the core bar of the locking part is installed in the center hole. The side wall of the inner core close to the mounting groove is evenly distributed with a plurality of triangular grooves, and the locking part is hingedly installed in the triangular groove. The side wall of the triangular groove has a hinge hole that passes through the inner core, and the locking part is hingedly installed in the hinge hole.

[0007] The locking part includes a core rod and a pressure plate. The core rod is inserted into the center hole, the pressure plate is hinged on the hinge hole, and the inner end of the pressure plate is inserted into the center of the core rod. A screw rod extends upward from the top of the core rod, and the screw rod is threadedly connected with the threaded barrel during installation. A pull rod extends downward from the bottom of the core rod. The core rod has axially uniformly distributed through grooves, and the bottom of the pull rod has a through hole in the horizontal direction. A hinged ear piece is provided at the lower middle part of the pressure plate. The hinged ear piece is fitted in the triangular groove and is hinged with the hinge hole through a pin. The outer end of the pressure plate is a pressure head, which presses the clamping boss.

[0008] Furthermore, the number of the triangular grooves is 2-4.

[0009] Furthermore, a transverse through positioning hole is provided on the tool rod near the bottom surface of the seat ring, and a pin is installed in the positioning hole to fix the final position of the core rod, thereby locking the position of the tool head on the tool seat.

[0010] Furthermore, the inner core side wall where the hinge hole is located has an operating groove, and the design of the operating groove is convenient for installing the pin from the hinge hole and hinge the pressure plate in the triangular groove with the help of tools.

[0011] The beneficial effects of the present invention are: The present invention provides a cutter head assembly for engineering machinery, which has a set of spirally locked cutter heads and cutter seat assemblies, wherein the internal control assembly is pulled upward by a thread, and during the pulling process, the internal clamping plate is turned over and pressed to clamp the cutter head. The device is easy to operate, has a strong locking ability and can effectively prevent loosening, and is also very convenient to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the present invention; Figure 2 is an internal schematic diagram of the present invention; Figure 3 is an exploded view of the present invention; In the figure: 10. cutter head, 11. round head, 12. mounting seat, 13. inner cavity, 14. clamping boss, 15. threaded cylinder, 20. cutter seat, 21. seat ring, 22. mounting groove, 23. inner core, 24. cutter rod, 25. center hole, 26. triangular groove, 27. hinge hole, 28. positioning hole, 29. operating groove, 30. locking part, 31. core rod, 311. screw rod, 312. pull rod, 313. through groove, 314. through hole, 32. pressure plate, 321. hinged ear, 322. pressure head, 323. control end. DETAILED DESCRIPTION

[0013] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0014] See also Figure 1-Figure 3 The threaded locking quick-release tool shown includes a cutter head 10 , a cutter seat 20 and a locking portion 30 . The cutter head 10 is mounted on the cutter seat 20 , and the locking portion 30 is mounted inside the cutter seat 20 and is connected to the cutter head 10 to lock the cutter head 10 on the cutter seat 20 .

[0015] The cutter head 10 includes a round head 11, a mounting seat 12, an inner cavity 13, a clamping boss 14 and a threaded barrel 15. The round head 11 is the cutting part of the entire tool. This part is usually made of high-strength materials and undergoes a special heat treatment process to achieve high hardness and strength. The lower part of the round head 11 transitions to the mounting seat 12 through an arc. The mounting seat 12 has an inner cavity 13 inside. The inner cavity 13 cooperates with the cutter seat 20. The bottom of the inner cavity 13 has a flange-shaped clamping boss 14. The clamping boss 14 cooperates with the locking part 30 to achieve the docking of the cutter head 10 on the cutter seat 20. The inner center of the inner cavity 13 has a threaded barrel 15, which is connected to the locking part 30, and the inner wall of the threaded barrel 15 has threads.

[0016] The tool holder 20 includes a seat ring 21, a mounting groove 22, an inner core 23, a tool rod 24, a center hole 25, a triangular groove 26, a hinge hole 27, a positioning hole 28 and an operating groove 29. The seat ring 21 has a mounting groove 22 in the middle, and the mounting seat 12 of the cutter head 10 falls into the seat ring 21 after being locked. The inner core 23 extends upward from the middle of the mounting groove 22, and the inner core 23 is fitted and installed in the inner cavity 13 of the cutter head 10. The tool rod 24 extends downward from the bottom of the seat ring 21. The tool rod 24 installs the entire tool on the cutter disc of the engineering equipment and moves together with the cutter disc to complete the engineering operation. The center of the inner core 23 has a central hole 25 that extends downward to the knife rod 24. The core rod 31 of the locking part 30 is installed in the central hole 25. The side wall of the inner core 23 near the installation groove 22 is evenly distributed with multiple triangular grooves 26. The pressing plate 32 of the locking part 30 is hingedly installed in the triangular groove 26. The number of triangular grooves 26 is 2-4. The side wall of the triangular groove 26 has a hinge hole 27 that passes through the inner core 23. The pressing plate 32 of the locking part 30 is hingedly installed in the hinge hole 27. The knife rod 24 has a transversely penetrating positioning hole 28 near the bottom surface of the seat ring 21. The positioning hole 28 is installed with a pin to fix the final position of the core rod 31, thereby locking the position of the cutter head 10 on the knife seat 20. The side wall of the inner core 23 where the hinge hole 27 is located has an operating groove 29. The design of the operating groove 29 is convenient for installing the pin from the hinge hole 27 and hinge the pressing plate 32 in the triangular groove 26 with the help of a tool.

[0017] The locking portion 30 includes a core rod 31 and a pressing plate 32 . The core rod 31 is inserted into the central hole 25 . The pressing plate 32 is hinged on the hinge hole 27 . The inner end of the pressing plate 32 is inserted into the center of the core rod 31 .

[0018] A screw rod 311 extends upward from the top of the core rod 31, which is threadedly connected with the threaded barrel 15 during installation. A pull rod 312 extends downward from the bottom of the core rod 31. The core rod 31 is axially uniformly provided with through grooves 313. The bottom of the pull rod 312 is provided with a through hole 314 in the horizontal direction, and the through hole 314 is connected with the positioning hole 28 by a pin. A hinged ear piece 321 is provided at the lower middle part of the pressing plate 32. The hinged ear piece 321 is sleeved in the triangular groove 26 and is hinged with the hinge hole 27 by a pin. The outer end of the pressing plate 32 is a pressing head 322, which presses the clamping boss 14, that is, presses the cutter head 10. The inner end of the pressing plate 32 is a control end 323, which is sleeved in the through groove 313. The lifting process of the core rod 31 drives the pressing plate 32 to rotate on the hinged ear piece 321, so that the pressing plate 32 presses or releases the cutter head 10.

[0019] The working principle of the present invention is: first, the core rod 31 is installed in the center hole 25, and the through groove 313 needs to be aligned with the triangular groove 26, and the angle and height need to be aligned. Therefore, this operation usually needs to be operated with the help of a threaded sleeve, and a threaded sleeve matching the screw rod 311 is customized, and the threaded sleeve is tightened with the screw rod 311. The core rod 31 is installed into the center hole 25 with the threaded sleeve held, and the angle and height are aligned. The inner end of the pressure plate 32 is passed through the triangular groove 26 into the through groove 313, and a pin is installed in the hinge hole 27 to connect the hinge ear 321. After completing the installation of all the pressure plates 32, the threaded sleeve can be removed. At this time, the core rod 31 will fall downward due to the influence of gravity, and accordingly, the inner end of the pressure plate 32 flips downward and the outer end flips upward. At this time, the cutter head 10 can be installed on the inner core 23 from top to bottom. When the threaded barrel 15 contacts the screw 311, the cutter head 10 is rotated so that the threaded barrel 15 and the screw 311 are tightened together. Since the position between the cutter head 10 and the cutter seat 20 is defined by the mounting seat 12 and the mounting groove 22, during the process of tightening the threaded barrel 14 and the screw 311, the threaded barrel 15 pulls the screw 311 upward. During the process of pulling the screw 311 upward, the core rod 31 drives the pressing plate 32 to flip, and its outer end flips downward until the outer end of the pressing plate 32 presses the clamping boss 14, until the threaded barrel 15 and the screw 311 are tightened together, and the pressing head 322 of the pressing plate 32 presses the clamping boss 14, completing the clamping of the cutter head 10 and the cutter seat 20. Of course, the specific dimensions of the internal components need to be designed in coordination with each other. At this time, the height of the core rod 31 in the center hole 25 is determined, and the through hole 314 corresponds to the position of the positioning hole 28. The pin is inserted to lock the height position of the core rod 31. After the height position of the core rod 31 is locked, the pressure plate 32 is engaged with the boss 14, and the threaded barrel 15 and the screw rod 311 cannot continue to rotate relative to each other. The installation, positioning and locking of the cutter head and the cutter seat are completed. The disassembly of the device is also relatively simple. Remove the pin in the through hole 314 and rotate the cutter head 10 in the opposite direction to complete the disassembly.

[0020] The above embodiments mainly illustrate the threaded locking quick-release tool of the present invention. Although only limited embodiments and technical features are described, those skilled in the art should understand that the present invention can be implemented in many other forms without departing from its subject matter and scope. Therefore, the embodiments shown are regarded as illustrative rather than restrictive, and the present invention may cover various modifications and replacements without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A threaded locking quick-release tool, comprising a tool head (10), a tool seat (20) and a locking portion (30), wherein the tool head (10) is mounted on the tool seat (20), and is characterized in that: The locking portion (30) is installed inside the tool holder (20) and is connected to the tool head (10) to lock the tool head (10) on the tool holder (20). The tool head (10) comprises a round head (11), a mounting seat (12), an inner cavity (13), a clamping boss (14) and a threaded barrel (15). The round head (11) is a cutting part of the entire tool. The lower part of the round head (11) transitions to the mounting seat (12) through an arc. The mounting seat (12) has an inner cavity (13) inside. The inner cavity (13) is docked with the tool holder (20). The bottom of the inner cavity (13) has a flange-shaped clamping boss (14). The cavity (13) has a threaded tube (15) in the center, the threaded tube (15) is connected to the locking part (30), the inner wall of the threaded tube (15) has threads, the tool seat (20) comprises a seat ring (21), a mounting groove (22), an inner core (23), a tool rod (24), a center hole (25), a triangular groove (26) and a hinge hole (27), the seat ring (21) has a mounting groove (22) in the middle, the mounting seat (12) of the tool head (10) falls into the seat ring (21) after being locked, the inner core (23) extends upward from the middle of the mounting groove (22), and the tool rod (24) extends downward from the bottom of the seat ring (21). ), the center of the inner core (23) has a center hole (25) extending downward to the knife rod (24), the side wall of the inner core (23) close to the mounting groove (22) is evenly distributed with a plurality of triangular grooves (26), the side wall of the triangular groove (26) has a hinge hole (27) passing through the inner core (23), the locking part (30) includes a core rod (31) and a pressure plate (32), the core rod (31) is inserted into the center hole (25), the pressure plate (32) is hinged on the hinge hole (27), the inner end of the pressure plate (32) is inserted into the center of the core rod (31), and a screw rod (311) extends upward from the top of the core rod (31), and the screw rod (311) is threadedly connected with the threaded barrel (15) during installation, a pull rod (312) extends downward from the bottom of the core rod (31), the core rod (31) has axially evenly distributed through grooves (313), and a hinged ear (321) is provided at the lower middle part of the pressure plate (32). The hinged ear (321) is fitted in the triangular groove (26) and is hinged to the hinge hole (27) through a pin. The outer end of the pressure plate (32) is a pressure head (322), which presses the clamping boss (14), and the inner end of the pressure plate (32) is a control end (323), which is fitted in the through groove (313).

2. The thread locking quick release tool according to claim 1, characterized in that: The number of the triangular grooves (26) is 2-4.

3. The thread locking quick release tool according to claim 1, characterized in that: The knife rod (24) has a transversely penetrating positioning hole (28) at a position close to the bottom surface of the seat ring (21), and the bottom of the pull rod (312) has a transverse through hole (314), and the through hole (314) is connected to the positioning hole (28) by a pin.

4. The thread locking quick release tool according to claim 1, characterized in that: The side wall of the inner core (23) where the hinge hole (27) is located has an operating groove (29). The design of the operating groove (29) is convenient for installing the pin from the hinge hole (27) and hinge the pressure plate (32) in the triangular groove (26) by means of a tool.

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