Bolt locking type engineering cutter head

Abstract

A bolt locking type engineering cutter head belongs to the technical field of engineering machinery cutters and comprises a cutter head, a cutter holder, a cutter bar and a lock, the cutter head is mounted on the cutter holder, and the cutter bar penetrates into the cutter holder and is connected with the cutter head through the lock. An inner cavity is formed in the tool bit, a first inclined groove and a second inclined groove are formed in the two sides of the inner cavity respectively, and the bottom of the first inclined groove is downwards communicated with the bottom face of the tool bit. A mounting seat of the tool bit is sleeved in the circular groove, a core column is arranged in the center of the tool apron, the core column is sleeved in an inner cavity of the tool bit, a through square hole is formed in the center of the core column, a tool bar is inserted into the square hole, a through large transverse groove is transversely formed in the middle of the core column, and a lock head is arranged in the large transverse groove in a penetrating manner. The cutter bar comprises a bar body and a pin rod, and the bar body penetrates through the cutter holder from bottom to top. The lock head comprises a lock block and pins, the lock block is composed of a pair of symmetrical two pieces, a butt-joint piece is arranged on the side of the middle of the lock block, a wedge block is arranged at the end of the butt-joint piece, an oblique angle is arranged on the outer side end face of the wedge block, pin holes are formed in the two sides of a positioning hole in the butt-joint piece, and the pins are installed in the pin holes.

Description

Technical Field

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

[0002] In the field of engineering machinery technology, one of the more common types of equipment is used for crushing, milling mountains, stones and other projects. 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 bounded disassembly and assembly structure. Summary of the invention

[0003] The present invention provides a latch-locking engineering tool head 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 latch-locking engineering tool head comprises a tool head, a tool seat, a tool rod and a lock head. The tool head is mounted on the tool seat, and the tool rod is inserted into the tool seat and connected to the tool head through the lock head.

[0005] The cutter head includes a cutting head, a mounting seat, an inner cavity, a first bevel groove and a second bevel groove. The cutter head has an inner cavity, and the inner cavity has a first bevel groove and a second bevel groove on both sides. The bottom of the first bevel groove is downwardly connected to the bottom surface of the cutter head. The mounting seat of the cutter head is sleeved and installed in the circular groove. The center of the cutter seat has a core column, which is sleeved and installed in the inner cavity of the cutter head. The center of the core column has a through square hole, and the cutter rod is inserted and installed in the square hole. The middle of the core column has a through large transverse groove, and a lock head is inserted in the large transverse groove.

[0006] The knife rod includes a rod body and a pin rod, and the rod body is inserted into the knife seat from bottom to top. The lower part of the rod body is a connecting rod, and there is a square rod above the connecting rod. The square rod is inserted into the square hole of the knife seat. The bottom center of the connecting rod has a threaded hole, which is connected to the light hole upwards, and the pin rod is inserted into the light hole. The upper part of the rod body has a small transverse groove, which is connected to the upper part of the light hole, and a lock head is inserted horizontally in the small transverse groove. The lower part of the pin rod is a threaded head, and there is a positioning rod above the threaded head. The threaded head and the threaded hole are connected by threads. The lock head includes a locking block and a pin. The locking block is composed of a pair of symmetrical pieces. The middle side of the locking block is a docking piece, and the end of the docking piece has a wedge block. The outer end face of the wedge block has an oblique angle. There is a positioning hole in the center of the docking piece. The positioning rod of the pin rod is inserted into the positioning hole to lock the lateral position of the lock head. There are pin holes on both sides of the positioning hole on the docking piece, and the pin is installed in the pin hole.

[0007] Furthermore, the cutting head and its bottom have a slightly larger mounting seat arc transition.

[0008] Furthermore, the top of the core column is also provided with a waist-shaped hole, which passes downward to the large transverse groove, and the waist-shaped hole provides a necessary passage for the installation and connection of the lock.

[0009] The beneficial effects of the present invention are: The present invention provides a cutter head assembly for engineering machinery, which has a set of quick-release assemblies, which can conveniently realize the assembly and disassembly of the tool. The locking head with an oblique wedge structure inside can gradually lock the cutter head as the cutter head is installed downward, and finally the lateral position of the locking head fixed by a pin rod is inserted into the center of the guide rod to realize the locking of the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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; Figure 4 is a second exploded view of the present invention; Figure 5 is a cross-sectional view of the present invention; In the figure: 10. tool head, 11. cutting head, 12. mounting seat, 13. inner cavity, 14. first oblique groove, 15. second oblique groove, 20. tool holder, 21. round table, 22. round groove, 23. core column, 24. square hole, 25. large transverse groove, 26. waist-shaped hole, 30. tool rod, 31. rod body, 311. connecting rod, 312. square rod, 313. threaded hole, 314. light hole, 315. small transverse groove, 32. pin rod, 321. threaded head, 322. positioning rod, 40. locking head, 41. locking block, 411. docking piece, 412. wedge block, 413. bevel, 414. positioning hole, 415. pin hole, 42. pin. DETAILED DESCRIPTION

[0011] 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.

[0012] See also Figure 1-Figure 5 The pin-locking engineering tool head shown includes a tool head 10, a tool seat 20, a tool rod 30 and a lock 40. The tool head 10 is installed on the tool seat 20, the tool rod 30 is inserted into the tool seat 20 and connected to the tool head 10 through the lock 40, and the tool rod 30 is externally connected to the tool disc of an external device.

[0013] The cutter head 10 includes a cutting head 11, a mounting seat 12, an inner cavity 13, a first bevel 14 and a second bevel 15. The cutting head 11 and its bottom have an arc transition with the mounting seat 12 which is slightly larger than the cutting head 11. The cutter head 10 has an inner cavity 13. The mounting seat 12 and the inner cavity 13 are respectively connected to the corresponding parts of the cutter seat 20. The inner cavity 13 has a first bevel 14 and a second bevel 15 on both sides. The bottom of the first bevel 14 is connected downward to the bottom surface of the cutter head 10 to form an installation passage for the locking head 40. The first bevel 14 and the second bevel 15 together form a structure for the locking head 40 to lock the entire tool.

[0014] The tool holder 20 includes a truncated cone 21, a circular groove 22, a core column 23, a square hole 24, a large transverse groove 25 and a waist-shaped hole 26. The inner side of the truncated cone 21 has a circular groove 22, and the mounting seat 12 of the tool head 10 is sleeved and installed in the circular groove 22. The tool holder 20 has a core column 23 in the center, and the core column 23 is sleeved and installed in the inner cavity 13 of the tool head 10. The core column 23 has a through square hole 24 in the center, and the knife rod 30 is inserted and installed in the square hole 24. The middle part of the core column 23 has a through large transverse groove 25, and a lock head 40 is passed through the large transverse groove 25. The top of the core column 23 also has a waist-shaped hole 26, and the waist-shaped hole 26 penetrates downward to the large transverse groove 25. The waist-shaped hole 26 provides a necessary passage for the installation and connection of the lock head 40.

[0015] The knife bar 30 includes a rod body 31 and a pin rod 32. The rod body 31 is inserted into the knife seat 20 from bottom to top, and the pin rod 32 is inserted into the inside of the knife bar 30 and connected to the knife head 10 through the lock head 40. The lower part of the rod body 31 is a connecting rod 311, and the connecting rod 311 connects the entire tool to the knife disc of the mechanical device outward. There is a square rod 312 above the connecting rod 311, and the square rod 312 is inserted into the square hole 24 of the knife seat 20. The bottom center of the connecting rod 311 has a threaded hole 313, and the threaded hole 313 is connected to the light hole 314 upwards. The pin rod 32 is inserted into the light hole 314. The upper part of the rod body 31 has a small transverse groove 315, which is connected to the upper part of the light hole 314, and the lock head 40 is inserted horizontally in the small transverse groove 315. The lower part of the pin rod 32 is a threaded head 321, and the upper part of the threaded head 321 is a positioning rod 322. The threaded head 321 is connected to the threaded hole 313 by threads. The positioning rod 322 is inserted into the light hole 314 and inserted into the corresponding hole position of the locking head 40 when passing through the small transverse groove 315, so as to realize the positioning of the locking head 40 and further position and lock the tool head 10 and the tool holder 20.

[0016] The lock head 40 includes a lock block 41 and a pin 42. The lock block 41 is composed of a pair of symmetrical pieces. The middle side of the lock block 41 is a docking piece 411. The end of the docking piece 411 has a wedge 412. The outer end surface of the wedge 412 has an angle 413. The wedge 412 cooperates with the first inclined slot 14 and the second inclined slot 15 through the angle 413 to achieve locking installation. The docking piece 411 has a positioning hole 414 in the center. The positioning rod 322 of the pin rod 32 is inserted into the positioning hole 414 to lock the lateral position of the lock head 40. The positioning hole 414 on the docking piece 411 has pin holes 415 on both sides. The pin 42 is installed in the pin hole 415. The pin 42 connects the two lock blocks 41 that are stacked in opposite directions to each other into one body to obtain the whole lock head 40. In addition, the installation of the pin 42 needs to be achieved through the waist-shaped hole 26 with the help of a tool.

[0017] The working principle of the present invention is: first, the rod body 31 is inserted into the square hole 24 of the knife seat 20, and the docking pieces 411 of the locking block 41 are respectively inserted from both sides of the large transverse groove 25. The locking blocks 41 on both sides are respectively inserted alternately and inserted into the small transverse groove 513 of the rod body 31. When the two locking blocks 41 are docked, the pin 42 is inserted from the waist-shaped hole 26 into the pin hole 415. This operation needs to be achieved with the help of necessary tools. Then, push the entire lock head 40 to the left, and then pass the cutter head 10 downward from top to bottom. During the initial passing process, it is necessary to pay attention to the positional relationship between the lock head 40 and the first bevel groove 14. The lock head 40 is first inserted from the lower end opening of the first bevel groove 40, and then the cutter head 10 is slowly pressed downward. Thereafter, the lock head 40 is gradually pushed toward the direction of the second bevel groove 15 as the inclined surface of the first bevel groove 40 cooperates with the bevel angle 413 of the wedge block 412 until the cutter head 10 is installed downward in place. At this time, the mounting seat 12 enters the bottom of the circular groove 22, the top of the core column 23 enters the inner cavity 13, the lock head 40 is located in the first bevel groove 14 and the second bevel groove 15, and at the same time, the positioning hole 414 of the lock block 41 is aligned with the light hole 314 of the rod body 31. At this time, insert the pin rod 32 into the light hole 314 until the threaded head 321 is tightened with the threaded hole 313, and the entire tool head is installed. The above components are tightly connected to realize the installation of the cutter head 10 on the cutter seat 20 and the cutter rod 30. When it is necessary to disassemble, the cutter head 10 can be easily disassembled by performing the above operation in reverse, and can be used again after replacement. When the cutter rod 30 is installed on the cutter disc, the overall engineering crushing operation can be realized with the mechanical equipment.

[0018] The above embodiments mainly illustrate the latch locking engineering tool head 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 bolt-locking engineering tool head, comprising a tool head (10), a tool holder (20), a tool rod (30) and a lock head (40), characterized in that: The cutter head (10) is mounted on a cutter seat (20), a cutter rod (30) is inserted into the cutter seat (20) and connected to the cutter head (10) via a lock head (40), the cutter rod (30) is externally connected to a cutter disc of an external device, the cutter head (10) comprises a cutting head (11), a mounting seat (12), an inner cavity (13), a first inclined groove (14) and a second inclined groove (15), the cutter head (10) has an inner cavity (13), the mounting seat (12) and the inner cavity (13) are respectively connected to corresponding parts of the cutter seat (20), the inner cavity (13) has a first inclined groove (14) and a second inclined groove (15) on both sides, the bottom of the first inclined groove (14) is downwardly connected to the bottom surface of the cutter head (10), the cutter seat (20) comprises a truncated table (21), a circular groove (22), The truncated cone (21) has a circular groove (22) on the inner side, and the mounting seat (12) of the cutter head (10) is sleeved and installed in the circular groove (22). The cutter seat (20) has a core column (23) in the center, and the core column (23) is sleeved and installed in the inner cavity (13) of the cutter head (10). The core column (23) has a through square hole (24) in the center, and a cutter rod (30) is inserted and installed in the square hole (24). The middle part of the core column (23) has a through large transverse groove (25) in the horizontal direction, and a lock head (40) is inserted in the large transverse groove (25). The cutter rod (30) includes a rod body (31) and a pin rod (32). The rod body (31) is inserted into the cutter seat (20) from bottom to top, and the pin rod (32) is inserted into the cutter rod (30). The rod body (31) is connected to the cutter head (10) through a lock head (40), the lower part of the rod body (31) is a connecting rod (311), the upper part of the connecting rod (311) is provided with a square rod (312), the square rod (312) is inserted into the square hole (24) of the cutter seat (20), the bottom center of the connecting rod (311) is provided with a threaded hole (313), the threaded hole (313) is connected to the light hole (314) upwards, the light hole (314) is provided with a pin rod (32), the upper part of the rod body (31) is provided with a small transverse groove (315), the small transverse groove (315) is connected to the upper part of the light hole (314), the lock head (40) is inserted into the small transverse groove (315) horizontally, the lower part of the pin rod (32) is a threaded head (321), the upper part of the threaded head (321) is provided with a positioning rod (322), the threaded head (3 21) is connected with the threaded hole (313) by threading, the positioning rod (322) is inserted into the light hole (314), and is inserted into the corresponding hole of the lock head (40) when passing through the small transverse groove (315). The lock head (40) includes a locking block (41) and a pin (42). The locking block (41) is composed of a pair of mutually symmetrical pieces. The middle side of the locking block (41) is a docking piece (411). The end of the docking piece (411) has a wedge block (412). The outer end surface of the wedge block (412) has an oblique angle (413). The docking piece (411) has a positioning hole (414) in the center. The positioning rod (322) of the pin rod (32) is inserted into the positioning hole (414). The positioning hole (414) on the docking piece (411) has pin holes (415) on both sides.The pin (42) is installed in the pin hole (415).

2. The latch-locking engineering tool head according to claim 1, characterized in that: The cutting head (11) and its bottom have a slightly larger mounting seat (12) with an arc transition.

3. The latch-locking engineering tool head according to claim 1, characterized in that: The top of the core column (23) is provided with a waist-shaped hole (26), which penetrates downward to the large transverse groove (25), and the waist-shaped hole (26) provides a passage for the installation and connection of the lock head (40).

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