Crawler mobile crusher cutter head installation structure

Abstract

The present invention relates to a cutter disc installation structure of a crawler-type mobile crusher, comprising a crushing bin and a main cutter shaft and a secondary cutter shaft rotatably installed in the crushing bin, the main cutter shaft and the secondary cutter shaft being arranged in parallel, the main cutter shaft being connected to and driving the secondary cutter shaft; a plurality of parallel crushing knives and a plurality of parallel intermediate grinding pieces are respectively arranged on the main cutter shaft and the secondary cutter shaft, the intermediate grinding pieces arranged on the main cutter shaft are spaced by the crushing knives, the crushing knives arranged on the secondary cutter shaft are spaced by the intermediate grinding pieces, the crushing knives between adjacent main cutter shafts and secondary cutter shafts are arranged in an alternating manner, and side grinding pieces are connected to both side walls of the crushing knives; the present invention adopts the side grinding pieces and the intermediate grinding pieces to cooperate with the crushing knives, and in the process of the crushing knife crushing the material, the material between the staggered crushing knives is further ground and crushed by the side grinding pieces, so that the material entering the crushing bin is fully and thoroughly crushed.

Description

Technical Field

[0001] The invention relates to the technical field of crushing equipment, in particular to a cutter head mounting structure of a crawler-type mobile crusher. Background Art

[0002] Commonly used equipment for crushing operations include jaw crusher, impact crusher, impact crusher, compound crusher, single-stage hammer crusher, vertical crusher, gyratory crusher, cone crusher, roll crusher, double-roll crusher, two-in-one crusher, one-time forming crusher, etc.; crushing equipment realizes coarse crushing, medium crushing and fine crushing of materials according to the designed feeding and discharging particle sizes.

[0003] A Chinese patent (publication number CN108568343A) discloses a double-shaft structure of a mobile crusher, and specifically discloses the following technical features: a first cutter shaft and a second cutter shaft arranged parallel to the first cutter shaft, a plurality of cutter discs are arranged on the first cutter shaft and the second cutter shaft, the cutter discs on the first cutter shaft and the cutter discs on the second cutter shaft are arranged alternately, and a plurality of cutting knives and hook knives are arranged on the cutter discs. Specifically, the materials are crushed and cut by the cutting knives and hook knives arranged on the cutter discs.

[0004] Another prior art discloses a mobile grading crusher, which uses a crusher to reduce the material and crush the material. Specifically, the technology uses a drive shaft to drive a crushing drum to crush the material entering the crusher, and each crushing drum is provided with a plurality of drill bits, which are driven by the crushing drum to rotate and crush the material.

[0005] In summary, the existing cutterhead installation structure used for crushers is to crush materials only by cutting the outer circle of the cutterhead teeth with each other or directly setting a drill bit on the crushing drum, which makes it impossible to crush the materials quickly and thoroughly. In addition, since the positions between the cutterheads or the drill bits are fixed, it is impossible to distinguish and crush the materials according to the size of the materials and the required crushing specifications, and only a single specification of crushing can be achieved. Therefore, in order to solve the above problems, a cutterhead installation structure for a crawler mobile crusher is proposed. Summary of the invention

[0006] The object of the present invention is to provide a cutter disc mounting structure for a crawler-type mobile crusher, so as to solve the problems in the prior art that the cutter disc mounting structure cannot perform fast and thorough crushing and cannot differentiate and crush materials according to the size of the materials and the required crushing specifications.

[0007] To achieve the above object, the present invention provides the following technical solution: a cutter head installation structure of a crawler mobile crusher, comprising a crushing chamber and a main cutter shaft and a secondary cutter shaft rotatably installed in the crushing chamber, wherein the main cutter shaft and the secondary cutter shaft are arranged in parallel, and the main cutter shaft is connected to and drives the secondary cutter shaft;

[0008] A plurality of parallel crushing knives and a plurality of parallel intermediate grinding pieces are arranged on the main knife shaft and the auxiliary knife shaft respectively. The intermediate grinding pieces arranged on the main knife shaft are spaced by the crushing knives, and the crushing knives arranged on the auxiliary knife shaft are spaced by the intermediate grinding pieces. The crushing knives between the adjacent main knife shafts and auxiliary knife shafts are arranged in a staggered manner. Both side walls of the crushing knives are connected with side grinding pieces. The side grinding pieces between the adjacent crushing knives are connected to the intermediate grinding pieces. The crushing knives, side grinding pieces and intermediate grinding pieces rotate with the corresponding main knife shaft or auxiliary knife shaft.

[0009] Preferably, the crushing knife comprises a knife disc connected to the main knife shaft or the auxiliary knife shaft, the outer wall of the knife disc is provided with a plurality of knife teeth distributed in an annular shape, and the active end of the knife teeth is provided with a cutting knife;

[0010] Preferably, the side grinding member comprises a disc body connected to the cutter disc, a guide cavity is provided in the middle of the end surface of the disc body facing away from the cutter disc, and side grinding teeth distributed on the end surface of the disc body are provided outside the guide cavity;

[0011] Preferably, the intermediate grinding member comprises a guide cylinder arranged between adjacent crushing knives, the outer wall of the guide cylinder is provided with intermediate grinding teeth, the end of the guide cylinder is key-connected to the guide cavity of the side grinding member through the intermediate grinding teeth, and the intermediate grinding teeth cooperate with the cutters corresponding to the adjacent shafts.

[0012] Preferably, both side end surfaces of the cutter disc are provided with accommodating cavities, the accommodating cavities are telescopically matched with the disc body, and a spacing is reserved between the inner end surface of the guide cavity and the end surface of the guide cylinder.

[0013] Preferably, both ends of the main blade shaft and the auxiliary blade shaft are rotatably connected with a driving assembly, the driving assembly is connected to the crushing bin, the driving assembly is connected to and drives a pushing assembly that penetrates the blade disc, the disc body and the guide cylinder, one of the pushing assemblies is used to drive the side grinding piece on one side of the crushing blade to slide axially along the middle grinding piece, and the other pushing assembly is used to drive the side grinding piece on the other side of the crushing blade to slide axially along the middle grinding piece.

[0014] Preferably, the pushing assembly includes a pushing ring connected and driven by the driving assembly, the pushing ring is sleeved on the shaft end of one side of the main knife shaft or the auxiliary knife shaft, the end face of the pushing ring close to the knife disc is connected with a guide column, the guide column passes through the knife disc and the guide cylinder and is connected to the disc body, and the guide column is used to drive the disc body to slide along the guide cylinder.

[0015] Preferably, the driving assembly also includes a shaft housing connected to the crushing chamber, a rotating chamber for accommodating a push ring is formed in the shaft housing, one end of the rotating chamber is provided with a cover plate rotatably connected to the main knife shaft or the auxiliary knife shaft, and the end surface of the cover plate facing away from the shaft housing is provided with a telescopic part, the telescopic part is connected to and drives a contact disk accommodated in the rotating chamber, and the contact disk is rotatably connected to the push ring.

[0016] Preferably, it also includes a driving box and a transmission box respectively arranged at both ends of the main cutter shaft, the driving box and the transmission box are respectively connected to the end faces on both sides of the crushing bin, one end of the main cutter shaft passes through the driving box, and the main cutter shaft and the auxiliary cutter shaft extend into one end of the transmission box for power connection through a transmission component.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. The present invention uses the main blade shaft and the auxiliary blade shaft to match, and the staggered crushing blades are used to crush the materials entering the crushing bin. The side grinding pieces and the middle grinding pieces are used to match the crushing blades. During the crushing process of the crushing blades, the materials between the staggered crushing blades are further ground and crushed by the side grinding pieces, and the teeth on the outer circle of the crushing blades match the middle grinding pieces, so that the materials entering the crushing bin are fully crushed. Compared with the traditional blade disc structure that only uses staggered shearing and crushing, the present invention has a more excellent crushing effect and processing efficiency;

[0019] 2. The present invention adopts accommodating cavities on both sides of the crushing knife to accommodate the side grinding pieces. The side grinding pieces and the crushing knife are telescopically matched, and the side grinding pieces slide along the middle grinding pieces. The driving component and the pushing component cooperate to adjust the distance between the side grinding pieces extending out of the crushing knife, and then adjust the distance between the staggered corresponding side grinding pieces, so as to realize the adjustment of the material crushing specifications, solve the defect that the traditional cutter disc structure can only perform crushing processing of a single specification, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a three-dimensional structure of a set of main tool shafts and auxiliary tool shafts is provided for the present invention;

[0021] Figure 2 A schematic diagram of a three-dimensional structure in which multiple sets of auxiliary tool shafts are arranged in the present invention;

[0022] Figure 3 The exploded structural diagram of the present invention is provided with multiple sets of auxiliary knife shafts;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of the main cutter shaft and the crushing cutter;

[0024] Figure 5 This is a schematic diagram of the explosion structure of the main cutter shaft and the crushing cutter;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the cooperation between the auxiliary knife shaft and the crushing knife;

[0026] Figure 7 It is a schematic diagram of the explosion structure of the auxiliary knife shaft and the crushing knife;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the crushing knife;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the side grinding piece;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the middle grinding piece;

[0030] Fig.11 A schematic diagram of the three-dimensional structure of the driving component;

[0031] Fig.12 A schematic diagram of the structure of the drive component.

[0032] In the accompanying drawings: 1, crushing chamber; 2, main cutter shaft; 3, auxiliary cutter shaft;

[0033] 4. Crushing knife; 41. Cutter head; 42. Cutter teeth; 43. Cutter; 44. First mounting hole; 45. Positioning hole; 46. Accommodating cavity;

[0034] 5. side grinding member; 51. disk body; 52. guide cavity; 53. second mounting hole; 54. thrust hole; 55. side grinding tooth;

[0035] 6. Intermediate grinding piece; 61. Guide cylinder; 62. Reserved cavity; 63. Third mounting hole; 64. Guide hole; 65. Intermediate grinding tooth;

[0036] 7. Push assembly; 71. Push ring; 72. Guide column; 73. Positioning ring; 74. Spring;

[0037] 8. driving assembly; 81. shaft housing; 82. rotary chamber; 83. cover plate; 84. telescopic member; 85. contact plate;

[0038] 9. Fixing hole; 10. Active box; 11. Transmission box; 12. Transmission assembly; 13. Guide platform. DETAILED DESCRIPTION

[0039] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-10 The present invention provides a technical solution: a cutter head installation structure of a crawler mobile crusher, comprising a crushing chamber 1, and a main cutter shaft 2 and a secondary cutter shaft 3 rotatably installed in the crushing chamber 1, wherein the main cutter shaft 2 and the secondary cutter shaft 3 are arranged in parallel, and the main cutter shaft 2 is connected to and drives the secondary cutter shaft 3. Specifically, the adjacent main cutter shaft 2 and the secondary cutter shaft 3 rotate in opposite directions, and one end of the main cutter shaft 2 is used to connect a driving device, and the other end is connected to the secondary cutter shaft 3 in a power connection;

[0042] A plurality of parallel crushing knives 4 and a plurality of parallel intermediate grinding pieces 6 are arranged on the main knife shaft 2 and the secondary knife shaft 3, respectively. The intermediate grinding pieces 6 arranged on the main knife shaft 2 are spaced by the crushing knives 4, and the crushing knives 4 arranged on the secondary knife shaft 3 are spaced by the intermediate grinding pieces 6. Specifically, the difference in the number of arrangement of the intermediate grinding pieces 6 and the crushing knives 4 of the main knife shaft 2 or the secondary knife shaft 3 is 1, and the crushing knives 4 between adjacent main knife shafts 2 and secondary knife shafts 3 are arranged alternately. Specifically, the crushing knives 4 of the main knife shaft 2 correspond to the intermediate grinding pieces 6 of the secondary knife shaft 3, and the intermediate grinding pieces 6 of the main knife shaft 2 correspond to the crushing knives 4 of the secondary knife shaft 3. Both side walls of the crushing knives 4 are connected with side grinding pieces 5, and the side grinding pieces 5 between the adjacent crushing knives 4 are connected to the intermediate grinding pieces 6. The crushing knives 4, the side grinding pieces 5 and the intermediate grinding pieces 6 rotate with the corresponding main knife shaft 2 or the secondary knife shaft 3;

[0043] The crushing knife 4 includes a knife disc 41 connected to the main knife shaft 2 or the auxiliary knife shaft 3, and the outer wall of the knife disc 41 is provided with a plurality of knife teeth 42 distributed in an annular shape, and the active end of the knife teeth 42 is provided with a cutter 43;

[0044] The side grinding member 5 includes a disc body 51 connected to the cutter disc 41, a guide cavity 52 is provided in the middle of the end surface of the disc body 51 on the side away from the cutter disc 41, and side grinding teeth 55 distributed on the end surface of the disc body 51 are provided on the outside of the guide cavity 52. ​​Specifically, a plurality of side grinding teeth 55 are provided, and the plurality of side grinding teeth 55 are distributed in a ring shape on the end surface of the disc body 51 on the side away from the cutter disc 41 with the axis of the guide cavity 52;

[0045] The intermediate grinding member 6 comprises a guide cylinder 61 arranged between adjacent crushing knives 4, and the outer wall of the guide cylinder 61 is provided with intermediate grinding teeth 65. Specifically, a plurality of intermediate grinding teeth 65 are provided and distributed in an annular shape on the outer wall of the guide cylinder 61. The end of the guide cylinder 61 is key-connected with the guide cavity 52 of the side grinding member 5 through the intermediate grinding teeth 65. Specifically, the intermediate grinding teeth 65 serve as splines, and the inner wall of the guide cavity 52 is processed with spline grooves matched with the intermediate grinding teeth 65. The intermediate grinding teeth 65 are matched with the cutters 43 corresponding to the adjacent shafts.

[0046] like Figure 2 and 3 Furthermore, there are several auxiliary knife shafts 3, and the several auxiliary knife shafts 3 are arranged on both sides of the main knife shaft 2. Specifically, the main knife shaft 2 and the auxiliary knife shaft 3 form a crushing area with an opening upward, and the crushing knives 4 between adjacent auxiliary knife shafts 3 are arranged alternately, and the adjacent auxiliary knife shafts 3 rotate in opposite directions. The multiple auxiliary knife shafts 3 can cooperate with the main knife shaft 2 to set up the knife disc 41, the side grinding piece 5 and the middle grinding piece 6 to crush the material entering the crushing bin 1.

[0047] In this embodiment, the main blade shaft 2 and the auxiliary blade shaft 3 cooperate with each other, and the staggered crushing blades 4 crush the material entering the crushing bin 1. During the process of the crushing blades 4 crushing the material, the material between the staggered crushing blades 4 is further ground and crushed by the side grinding piece 5, and the teeth 42 on the outer circle of the crushing blade 4 cooperate with the middle grinding piece 6, so as to fully crush the material entering the crushing bin 1. Compared with the traditional blade disc structure which only crushes by staggered shearing, it has a more excellent crushing effect and processing efficiency.

[0048] Example 2

[0049] See also Figure 3-12 The present invention also provides a technical solution: on the basis of embodiment 1, the difference lies in that: both side end surfaces of the cutter disc 41 are provided with accommodating cavities 46, and the accommodating cavities 46 are telescopically matched with the disc body 51. Specifically, the disc body 51 is matched with the axial hole of the accommodating cavity 46, so that the cutter disc 41 can be guided and installed through the first installation hole 44, and the side grinding member 5 can be guided and installed through the accommodating cavities 46 on both sides of the cutter disc 41. A spacing is reserved between the inner end surface of the guide cavity 52 and the end surface of the guide cylinder 61. Specifically, the range of the spacing is 10-30mm, and when the disc body 51 reaches the end of the extended stroke, the disc body 51 does not separate from the accommodating cavity 46, and the disc body 51 can be accommodated and guided by the accommodating cavity 46, and the guide cavity 52 cooperates with the middle grinding teeth 65 on the outer wall of the guide cylinder 61, and the disc body 51 is further guided by the guide cylinder 61, and the structural strength is higher.

[0050] like Figure 3-7Furthermore, both ends of the main blade shaft 2 and the auxiliary blade shaft 3 are rotatably connected with a driving assembly 8, and the driving assembly 8 is connected to the crushing bin 1. The driving assembly 8 is connected to and drives a pushing assembly 7 that penetrates the cutter disc 41, the disc body 51 and the guide cylinder 61. One of the pushing assemblies 7 is used to drive the side grinding piece 5 on one side of the crushing blade 4 to slide axially along the middle grinding piece 6, and the other pushing assembly 7 is used to drive the side grinding piece 5 on the other side of the crushing blade 4 to slide axially along the middle grinding piece 6. The side grinding piece 5 on one side of the crushing blade 4 can be driven by the driving assembly 8 to slide axially along the middle grinding piece 6, and then the spacing of the side grinding pieces 5 can be adjusted according to the crushing specifications, and the scope of application is wider.

[0051] like Figure 5 , 7 , 11. Further, the pushing assembly 7 includes a pushing ring 71 connected and driven by the driving assembly 8, the pushing ring 71 is sleeved on the shaft end of one side of the main blade shaft 2 or the auxiliary blade shaft 3, and the end face of the pushing ring 71 close to the cutter disc 41 is connected with a guide column 72. Specifically, the outer side of the main blade shaft 2 or the auxiliary blade shaft 3 is annularly distributed with a plurality of guide columns 72, and the plurality of guide columns 72 on the outer side of the main blade shaft 2 or the auxiliary blade shaft 3 are divided into two groups, which are respectively connected to the pushing ring 71 at both ends of the main blade shaft 2 or the auxiliary blade shaft 3, the guide columns 72 pass through the cutter disc 41 and the guide cylinder 61 and are connected to the disc body 51, the guide columns 72 are used to drive the disc body 51 to slide along the guide cylinder 61, that is, the guide columns 72 can be erected by the pushing ring 71, and the driving assembly 8 drives the pushing ring 71 to slide axially, and then the disc body 51 is pushed to slide along the guide cylinder 61 by the guide columns 72, so that according to the crushing requirements, the spacing between the side grinding parts 5 is adjusted to achieve the adjustment of the crushing specifications.

[0052] like Figure 5 , 7 , 11, wherein the end surface of the disc body 51 close to the cutter disc 41 is provided with a positioning ring 73 connected to the guide post 72. Specifically, the positioning ring 73 is sleeved on the outside of the guide post 72, and the positioning ring 73 and the guide post 72 are detachably connected by screws. The positioning ring 73 is used for the guide post 72 to push the disc body 51 out of the accommodating cavity 46, that is, the positioning ring 73 cooperates with the guide post 72 through the thrust hole 54, and the guide post 72 guides the disc body 51. At the same time, the guide post 72 pushes the disc body 51 out of the accommodating cavity 46 through the positioning ring 73, thereby adjusting the grinding specifications after the material is crushed. Figure 5 , 7, 8, 11, wherein a first mounting hole 44 for connecting the main blade shaft 2 or the auxiliary blade shaft 3 is opened in the middle of the cutter disc 41, specifically, the outer wall of the main blade shaft 2 or the auxiliary blade shaft 3 is annularly distributed with a guide platform 13, the guide platform 13 is slidably connected to the first mounting hole 44, and the cutter disc 41 is connected to the guide platform 13 by bolts, and a positioning hole 45 slidably connected to the guide column 72 is provided on the outer side of the first mounting hole 44, specifically, the positioning hole 45 is used for the lateral sliding of the positioning ring 73 on the outer side of the guide column 72, that is, the positioning hole 45 can be used as a channel for the positioning ring 73 to pass through the cutter disc 41, and the positioning hole 45 cooperates with the positioning ring 73 to further guide the guide column 72, and the structure is more stable.

[0053] like Figure 5 , 7 , 9, 11, wherein a second mounting hole 53 slidably connected to the main blade shaft 2 or the auxiliary blade shaft 3 is provided in the guide cavity 52, specifically, the second mounting hole 53 of the disk body 51 is matched with the hole axis of the main blade shaft 2 or the auxiliary blade shaft 3, and the disk body 51 is matched with the guide platform 13 through the second mounting hole 53, and rotates with the main blade shaft 2 or the auxiliary blade shaft 3, and the inner end surface of the guide cavity 52 is provided with a thrust hole 54 distributed in an annular shape on the outside of the second mounting hole 53, and the thrust hole 54 is connected to the corresponding guide column 72, specifically, the guide column 72 is matched with the shaft hole of the thrust hole 54, and the guide column 72 and the disk body 51 pushed by it are contacted with the thrust hole 54 through the positioning ring 73, and are detachably connected, that is, they are matched with the guide column 72 through the thrust hole 54, so that the two groups of pushing components 7 symmetrically distributed on the outside of the main blade shaft 2 or the auxiliary blade shaft 3 can respectively push the side grinding pieces 5 on both sides of the crushing knife 4 to slide synchronously, and the structure is more stable.

[0054] like Figure 5 , 7 , 10, 11, wherein the intermediate grinding member 6 further comprises a third mounting hole 63 disposed in the middle of the inner cavity of the guide cylinder 61, the third mounting hole 63 being slidably connected to the main knife shaft 2 or the auxiliary knife shaft 3, specifically, the third mounting hole 63 is matched with the shaft hole of the main knife shaft 2 or the auxiliary knife shaft 3, and through the sliding match between the third mounting hole 63 and the guide platform 13, the intermediate grinding member 6 rotates with the main knife shaft 2 or the auxiliary knife shaft 3, and the outer side of the third mounting hole 63 is provided with an annularly distributed guide hole 64, and the guide hole 64 is connected to the guide column 72 Sliding connection, the two sides of the third mounting hole 63 form a reserved cavity 62 connected to the guide cavity 52, and the reserved cavity 62 contains a spring 74 sleeved on the outside of the guide column 72. The disk body 51 and the guide cylinder 61 slide together under the elastic action of the spring 74, so that the guide column 72 pushes the disk body 51 to extend out of the accommodating cavity 46 through the positioning ring 73. At the same time, the disk body 51 cooperates with the guide cylinder 61 to compress the spring 74, so that the spring 74 can provide a reverse elastic force for the extension of the disk body 51, thereby effectively improving the stability of the disk body 51.

[0055] like Figure 3 , 11 , 12. Further, the driving assembly 8 also includes a shaft housing 81 connected to the crushing chamber 1. Specifically, a fixing hole 9 is opened on the side wall of the crushing chamber 1. The shaft housing 81 cooperates with the shaft hole of the fixing hole 9, and the shaft housing 81 is connected to the crushing chamber 1 by bolts. A rotating chamber 82 for accommodating the push ring 71 is formed in the shaft housing 81. Specifically, the rotating chamber 82 is a stepped through inner chamber, and the end of the push assembly 7 located at the push ring 71 extends into the rotating chamber 82. One end of the rotating chamber 82 is provided with a cover plate 83 rotatably connected to the main blade shaft 2 or the auxiliary blade shaft 3. Specifically, the cover plate 83 is connected to the shaft housing 81 by bolts, and the end of the main blade shaft 2 or the auxiliary blade shaft 3 passes through the cover plate 83 and passes through the shaft The end face of the cover plate 83 facing away from the shaft housing 81 is provided with a telescopic member 84, and the telescopic member 84 is connected to and drives a contact plate 85 accommodated in the rotary cavity 82, and the contact plate 85 is rotatably connected with the push ring 71. Specifically, the push ring 71 contacts with the contact plate 85 under the action of the spring 74, and the push ring 71 and the contact plate 85 rotate relative to each other. The shaft end of the main knife shaft 2 or the auxiliary knife shaft 3 can be rotatably installed by cooperating with the shaft housing 81 and the cover plate 83, and the end of the push assembly 7 can be accommodated by the rotary cavity 82 in the shaft housing 81, and then the contact plate 85 is driven by the telescopic member 84 to drive the push ring 71, so that the grinding spacing of the side grinding member 5 is adjusted by the push assembly 7.

[0056] In this embodiment, the contact plate 85 is driven by the telescopic member 84 to drive the push ring 71, thereby driving the guide column 72 to slide axially along the main blade shaft 2 or the auxiliary blade shaft 3 through the push ring 71, and the guide column 72 passes through the positioning hole 45 and the guide hole 64, and pushes the side grinding member 5 to compress the spring 74 through the positioning ring 73. At the same time, the side grinding member 5 slides along the guide cylinder 61 and extends out of the accommodating cavity 46, so that the distance between the side grinding members 5 can be adjusted according to the crushing specifications. The material sheared and crushed by the crushing knife 4 is further ground and crushed by the adjacent side grinding members 5 and the blade teeth 42 and the middle grinding member 6, so that the material crushing process can be carried out more quickly, fully and thoroughly, and has a wider range of applications.

[0057] Example 3

[0058] See also Figure 1-3On the basis of Example 2, it also includes an active box 10 and a transmission box 11 respectively arranged at both ends of the main blade shaft 2, and the active box 10 and the transmission box 11 are respectively connected to the end faces on both sides of the crushing bin 1, and one end of the main blade shaft 2 passes through the active box 10. Specifically, the shaft end of the main blade shaft 2 extending out of the active box 10 is used to connect the power equipment, and the main blade shaft 2 and the auxiliary blade shaft 3 extend into the end of the transmission box 11 through a transmission component 12 for power connection. Specifically, the transmission component 12 can be a synchronous sprocket and a chain. The synchronous sprocket is arranged at the shaft end of the main blade shaft 2 and the auxiliary blade shaft 3. The synchronous sprockets are connected by a chain, and the extended ends of the main blade shaft 2 and the auxiliary blade shaft 3 can be packaged and protected by the active box 10 and the transmission box 11, which is more convenient for disassembly and maintenance.

[0059] In this embodiment, the transmission assembly 12 may also be a gear, and the main blade shaft 2 and the auxiliary blade shaft 3 are connected in power through gear transmission.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutter head mounting structure of a crawler mobile crusher, comprising a crushing chamber (1) and a main cutter shaft (2) and a secondary cutter shaft (3) rotatably mounted in the crushing chamber (1), wherein the main cutter shaft (2) and the secondary cutter shaft (3) are arranged in parallel, and the main cutter shaft (2) is connected to and drives the secondary cutter shaft (3), and is characterized in that: A plurality of parallel crushing knives (4) and a plurality of parallel intermediate grinding pieces (6) are arranged on the main knife shaft (2) and the auxiliary knife shaft (3), respectively; the intermediate grinding pieces (6) arranged on the main knife shaft (2) are spaced by the crushing knives (4); the crushing knives (4) arranged on the auxiliary knife shaft (3) are spaced by the intermediate grinding pieces (6); the crushing knives (4) between adjacent main knife shafts (2) and auxiliary knife shafts (3) are arranged in a staggered manner; both side walls of the crushing knives (4) are connected to side grinding pieces (5); the side grinding pieces (5) between adjacent crushing knives (4) are connected to the intermediate grinding pieces (6); the crushing knives (4), the side grinding pieces (5) and the intermediate grinding pieces (6) rotate with the corresponding main knife shaft (2) or auxiliary knife shaft (3); The crushing knife (4) comprises a knife disc (41) connected to the main knife shaft (2) or the auxiliary knife shaft (3); the outer wall of the knife disc (41) is provided with a plurality of knife teeth (42) distributed in an annular shape; and the active end of the knife teeth (42) is provided with a cutting knife (43); The side grinding member (5) comprises a disc body (51) connected to the cutter disc (41); a guide cavity (52) is provided in the middle of an end surface of the disc body (51) facing away from the cutter disc (41); and side grinding teeth (55) are provided outside the guide cavity (52) and distributed on the end surface of the disc body (51); The intermediate grinding member (6) comprises a guide cylinder (61) arranged between adjacent crushing knives (4), the outer wall of the guide cylinder (61) is provided with intermediate grinding teeth (65), the end of the guide cylinder (61) is key-connected to the guide cavity (52) of the side grinding member (5) via the intermediate grinding teeth (65), and the intermediate grinding teeth (65) cooperate with the cutters (43) corresponding to the adjacent shafts; Both side end surfaces of the cutter disc (41) are provided with accommodating cavities (46), the accommodating cavities (46) and the disc body (51) are telescopically matched, and a spacing is reserved between the inner end surface of the guide cavity (52) and the end surface of the guide cylinder (61); Both ends of the main blade shaft (2) and the auxiliary blade shaft (3) are rotatably connected to a driving assembly (8), the driving assembly (8) being connected to the crushing chamber (1), and the driving assembly (8) being connected to and driving a pushing assembly (7) penetrating the blade disc (41), the disc body (51) and the guide cylinder (61), wherein one of the pushing assemblies (7) is used to drive the side grinding piece (5) on one side of the crushing blade (4) to slide axially along the middle grinding piece (6), and the other pushing assembly (7) is used to drive the side grinding piece (5) on the other side of the crushing blade (4) to slide axially along the middle grinding piece (6).

2. The cutter head mounting structure of a crawler mobile crusher according to claim 1 is characterized in that: The pushing assembly (7) comprises a pushing ring (71) connected to and driven by the driving assembly (8); the pushing ring (71) is sleeved on an axial end of one side of the main blade shaft (2) or the auxiliary blade shaft (3); an end surface of the pushing ring (71) close to the blade disc (41) is connected to a guide column (72); the guide column (72) passes through the blade disc (41) and the guide cylinder (61) to be connected to the disc body (51); the guide column (72) is used to drive the disc body (51) to slide along the guide cylinder (61).

3. The cutter head mounting structure of a crawler mobile crusher according to claim 2 is characterized in that: The drive assembly (8) further comprises a shaft housing (81) connected to the crushing chamber (1); a rotary chamber (82) for accommodating a push ring (71) is formed in the shaft housing (81); a cover plate (83) rotatably connected to the main blade shaft (2) or the auxiliary blade shaft (3) is provided at one end of the rotary chamber (82); a telescopic member (84) is provided on an end surface of the cover plate (83) facing away from the shaft housing (81); the telescopic member (84) is connected to and drives a contact plate (85) accommodated in the rotary chamber (82); and the contact plate (85) is rotatably connected to the push ring (71).

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