Modularly designed and assembled crushing shaft group

Abstract

The invention relates to a modularly designed and assembled crushing shaft group, and belongs to the technical field of crushing shaft groups. Comprising a transmission shaft, the transmission shaft is a regular hexagonal prism, the outer side of the transmission shaft is sleeved with a plurality of breaking hammer bodies and a plurality of spacing discs, and one spacing disc is arranged between any two adjacent breaking hammer bodies; each edge of the transmission shaft is provided with a pin column, and the pin columns are located between the transmission shaft and the breaking hammer body and between the transmission shaft and the spacing disc. The problems that a hammer body of an existing crushing shaft set cannot be adjusted, and torque transmission is limited are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing shaft groups, and in particular relates to a crushing shaft group assembled by modular design. Background Art

[0002] like Fig.13 The figure shows the crushing shaft group in the traditional mining chute crusher, which is mainly composed of coupling, shaft, bearing, bearing seat, seal, flat key or tensioner. Its main structural features are: the crushing shaft group is connected to the crushing hammer body through a flat key or tensioner. The hammer body is integrated, and the position of the hammer head fixed on the hammer body seat cannot be adjusted, which cannot meet the needs of various working conditions. In addition, the torque transmission capacity of its connection method is limited and the service life is short. It is difficult to maintain. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and proposes a crushing shaft group assembled by modular design; it solves the problems that the hammer body cannot be adjusted and the torque transmission is limited in the current crushing shaft group.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0005] The modularly designed and assembled crushing shaft group includes a transmission shaft, which is a regular hexagonal prism. A plurality of crushing hammer bodies and a plurality of spacer disks are sleeved on the outer side of the transmission shaft, and a spacer disk is arranged between any two adjacent crushing hammer bodies; a pin is arranged on each edge of the transmission shaft, and the pin is located between the transmission shaft and the crushing hammer body and the spacer disk.

[0006] Furthermore, a transmission cylinder is fixedly arranged at both ends of the transmission shaft, and the transmission cylinder is coaxially arranged with the transmission shaft.

[0007] Furthermore, an inner arc groove is respectively arranged on each edge of the transmission shaft, a first plug-in hole is arranged at the center of the breaker hammer body, the first plug-in hole is a regular hexagonal through hole with two ends penetrating, the breaker hammer body is sleeved on the outer side of the transmission shaft through the first plug-in hole, and an outer arc groove is respectively arranged on each edge of the first plug-in hole; the number of the outer arc grooves on the breaker hammer body and the inner arc grooves on the transmission shaft are equal and correspond one to one, and the corresponding outer arc grooves and the inner arc grooves form a complete arc-shaped installation groove.

[0008] Furthermore, the spacer disk is a circular ring structure, and a second plug-in hole is arranged at the center of the spacer disk, and the second plug-in hole is a regular hexagonal through hole with two ends passing through; the spacer disk is sleeved on the outer side of the transmission shaft through the second plug-in hole, and an outer arc groove is arranged on each edge of the second plug-in hole of the spacer disk, and the number of the outer arc grooves on the spacer disk and the inner arc grooves on the transmission shaft are equal and correspond one to one, and the corresponding outer arc grooves and the inner arc grooves form a complete arc-shaped installation groove.

[0009] Furthermore, a pin is inserted into the mounting groove corresponding to each edge of the transmission shaft, and the same pin is inserted into the mounting grooves between multiple crushing hammer bodies and the transmission shaft and the mounting grooves between multiple spacer plates and the transmission shaft.

[0010] Furthermore, two crushing sharp corners are fixedly arranged on the outer side surface of the crushing hammer body, and the two crushing sharp corners are symmetrically arranged relative to the axis center of the crushing hammer body; four crushing hammer bodies and three spacer disks are sleeved on the outer side of the transmission shaft, and the four crushing hammer bodies and the three spacer disks are staggered, and the spacer disks maintain contact with the crushing hammer bodies on both sides.

[0011] Furthermore, the crushing angles on the same side of the four crushing hammer bodies are located on the same straight line, that is, the angles of the four crushing hammer bodies remain the same.

[0012] Furthermore, the two breaking hammer bodies on the same side have the same angle, and the angle between the two breaking hammer bodies on one side and the two breaking hammer bodies on the other side is 60°.

[0013] Furthermore, the two middle breaking hammer bodies have the same angle, the two outermost breaking hammer bodies have the same angle, and the angle between the two middle breaking hammer bodies and the two outermost breaking hammer bodies is 60°.

[0014] Furthermore, the angles of the two outermost breaking hammer bodies are the same, the second breaking hammer body rotates 60° clockwise relative to the first breaking hammer body, and the third breaking hammer body rotates 60° clockwise relative to the second breaking hammer body.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: (1) The modularly designed and assembled crushing shaft group provided by the present invention transmits torque through a transmission shaft with a regular hexagonal prism structure, has a large torque transmission capacity, has little wear on its contact surface, and has a fast disassembly and installation speed.

[0016] (2) The modular design and assembly of the crushing shaft group provided by the present invention can be used to install a number of crushing hammer bodies and spacer plates, which are determined by the width of the crusher. In addition, the installation angle of the crushing hammer body can be adjusted according to the actual working conditions, which is more adaptable to the needs of different working conditions.

[0017] (3) The modularly designed and assembled crushing shaft assembly provided by the present invention has a pin disposed between the edge of the transmission shaft and the edge of the first plug-in hole of the crushing hammer body, thereby avoiding stress concentration between the edge of the transmission shaft and the edge of the crushing hammer body when transmitting torque, thereby extending the service life of the transmission shaft and the crushing hammer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings: Figure 1 This is a three-dimensional schematic diagram of the present invention in a "straight-line" arrangement. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the present invention in a "straight-line" arrangement. Figure 2 ; Figure 3 It is a plan view of the present invention in a "straight-line" arrangement form; Figure 4 It is an exploded view of the present invention in a "straight-line" arrangement form; Figure 5 It is a three-dimensional schematic diagram of the transmission shaft; Figure 6 It is a three-dimensional schematic diagram of a crushing hammer body; Figure 7 It is a three-dimensional schematic diagram of the spacer disc; Figure 8 It is a schematic diagram of the connection between the transmission shaft and the spacer disc; Fig. 9 It is a schematic diagram of the connection between the transmission shaft and the crushing hammer body; Fig.10 It is a three-dimensional schematic diagram of the present invention in a "cross-shaped" arrangement; Fig.11 It is a three-dimensional schematic diagram of the present invention in a "pin-shaped" arrangement; Fig.12 It is a three-dimensional schematic diagram of the present invention in a "zigzag" arrangement form; Fig.13 It is a structural schematic diagram of an existing crushing shaft group; Among them, 1 is the transmission shaft, 2 is the crushing hammer body, 3 is the spacer disk, 4 is the pin column, 5 is the transmission cylinder, 6 is the inner arc groove, 7 is the first plug-in hole, 8 is the outer arc groove, 9 is the installation groove, 10 is the crushing sharp corner, and 11 is the second plug-in hole. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0020] like Figure 1 As shown in FIG. 12 , the present invention provides a crushing shaft group assembled with a modular design, including a transmission shaft 1, a crushing hammer body 2, a spacer plate 3, and a pin 4.

[0021] The transmission shaft 1 is a regular hexagonal prism shaft body, and a transmission cylinder 5 is fixedly arranged at both ends of the transmission shaft 1. The transmission cylinder 5 is coaxially arranged with the transmission shaft 1, and the transmission shaft 1 is driven to rotate by the transmission cylinders 5 on both sides.

[0022] An inner circular arc groove 6 is respectively arranged on each edge of the transmission shaft 1 , and the extending direction of the inner circular arc groove 6 is consistent with the extending direction of the transmission shaft 1 .

[0023] A first plug hole 7 is provided at the center of the breaker body 2, and the first plug hole 7 is a regular hexagonal through hole with two ends penetrating. The breaker body 2 is sleeved on the outer side of the transmission shaft 1 through the first plug hole 7. An outer circular arc groove 8 is provided on each edge of the first plug hole 7, and the extension direction of the outer circular arc groove 8 is consistent with the extension direction of the first plug hole 7.

[0024] The number of the outer arc grooves 8 on the breaker hammer body 2 and the inner arc grooves 6 on the transmission shaft 1 are equal and correspond one to one. The corresponding outer arc grooves 8 and inner arc grooves 6 form a complete arc-shaped installation groove 9.

[0025] Two crushing horns 10 are fixedly arranged on the outer side of the crushing hammer body 2 , and the two crushing horns 10 are symmetrically arranged with respect to the axis center of the crushing hammer body 2 .

[0026] The spacer disc 3 is a circular ring structure, and a second plug hole 11 is provided at the center of the spacer disc 3, and the second plug hole 11 is a regular hexagonal through hole with two ends penetrating. The spacer disc 3 is sleeved on the outer side of the transmission shaft 1 through the second plug hole 11. An outer arc groove 8 is provided on each edge of the second plug hole 11 of the spacer disc 3, and the extension direction of the outer arc groove 8 is consistent with the extension direction of the second plug hole 11.

[0027] The number of the outer arc grooves 8 on the spacer disk 3 and the inner arc grooves 6 on the transmission shaft 1 are equal and correspond one to one. The corresponding outer arc grooves 8 and inner arc grooves 6 form a complete arc-shaped installation groove 9.

[0028] Four crushing hammer bodies 2 and three spacer plates 3 are sleeved on the outer side of the transmission shaft 1. The four crushing hammer bodies 2 and the three spacer plates 3 are arranged alternately, that is, a spacer plate 3 is arranged between any two adjacent crushing hammer bodies 2, and the spacer plate 3 keeps in contact with the crushing hammer bodies 2 on both sides.

[0029] A pin 4 is inserted into the mounting groove 9 corresponding to each edge of the transmission shaft 1 , and the same pin 4 is inserted into the mounting grooves 9 between the four breaker hammer bodies 2 and the transmission shaft 1 and the mounting grooves 9 between the three spacer plates 3 and the transmission shaft 1 .

[0030] The arrangement of the four crushing hammer bodies 2 is divided into four types: The first type: "Single-character type" (such as Figure 1 , 2 shown) The crushing corners 10 on the same side of the four crushing hammer bodies 2 are located on the same straight line, that is, the angles of the four crushing hammer bodies 2 remain the same.

[0031] The second type: "Cross" (such as Fig.10 shown) The two breaking hammer bodies 2 on the same side have the same angle, and the angle between the two breaking hammer bodies 2 on one side and the two breaking hammer bodies 2 on the other side is 60°.

[0032] The third type: "pink" (such as Fig.11 shown) The two middle breaking hammer bodies 2 have the same angle, the two outermost breaking hammer bodies 2 have the same angle, and the angle between the two middle breaking hammer bodies 2 and the two outermost breaking hammer bodies 2 is 60°.

[0033] The fourth type: "sawtooth" (such as Fig.12 shown) The angles of the two outermost breaking hammer bodies 2 are the same. The second breaking hammer body 2 rotates 60° clockwise relative to the first breaking hammer body 2 , and the third breaking hammer body 2 rotates 60° clockwise relative to the second breaking hammer body 2 .

[0034] The transmission shaft 1 rotates under the drive of the transmission cylinders 5 on both sides, and the transmission shaft 1 drives the outer crushing hammer body 2 and the spacer plate 3 to rotate synchronously, and the materials are rotatably crushed by the four crushing hammer bodies 2. By arranging the four hammer bodies in different forms, different crushing effects can be achieved, which can be adjusted according to actual conditions. At the same time, since a pin 4 is arranged between the edge of the transmission shaft 1 and the edge of the first plug hole 7 of the crushing hammer body 2, stress concentration between the edge of the transmission shaft 1 and the edge of the crushing hammer body 2 can be avoided when transmitting torque, thereby extending the service life of the transmission shaft 1 and the crushing hammer body 2.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. The crushing shaft group assembled by modular design is characterized by: The invention comprises a transmission shaft (1), wherein the transmission shaft (1) is a regular hexagonal prism, a plurality of crushing hammer bodies (2) and a plurality of spacer plates (3) are sleeved on the outer side of the transmission shaft (1), and a spacer plate (3) is arranged between any two adjacent crushing hammer bodies (2); a pin column (4) is arranged on each edge of the transmission shaft (1), and the pin column (4) is located between the transmission shaft (1) and the crushing hammer body (2) and the spacer plate (3).

2. The modular design and assembly of the crushing shaft assembly according to claim 1 is characterized by: A transmission cylinder (5) is fixedly arranged at each end of the transmission shaft (1), and the transmission cylinder (5) is coaxially arranged with the transmission shaft (1).

3. The modular design and assembly of the crushing shaft assembly according to claim 1 is characterized by: An inner arc groove (6) is respectively arranged on each edge of the transmission shaft (1); a first plug hole (7) is arranged at the center of the breaker hammer body (2); the first plug hole (7) is a regular hexagonal through hole with two ends penetrating therethrough; the breaker hammer body (2) is sleeved on the outer side of the transmission shaft (1) through the first plug hole (7); an outer arc groove (8) is respectively arranged on each edge of the first plug hole (7); the number of the outer arc grooves (8) on the breaker hammer body (2) and the inner arc grooves (6) on the transmission shaft (1) are equal and correspond one to one; the corresponding outer arc grooves (8) and the inner arc grooves (6) form a completed arc-shaped installation groove (9).

4. The modular design and assembly of the crushing shaft assembly according to claim 3 is characterized by: The spacer disk (3) is of an annular structure, and a second plug hole (11) is provided at the center of the spacer disk (3), and the second plug hole (11) is a regular hexagonal through hole with two ends penetrating therethrough; the spacer disk (3) is sleeved on the outer side of the transmission shaft (1) through the second plug hole (11), and an outer arc groove (8) is provided on each edge of the second plug hole (11) of the spacer disk (3), and the number of the outer arc grooves (8) on the spacer disk (3) and the inner arc grooves (6) on the transmission shaft (1) are equal and correspond one to one, and the corresponding outer arc grooves (8) and the inner arc grooves (6) form a complete arc-shaped installation groove (9).

5. The modular design and assembly of the crushing shaft assembly according to claim 4 is characterized by: A pin (4) is inserted into the mounting groove (9) corresponding to each edge of the transmission shaft (1), and the same pin (4) is inserted into the mounting grooves (9) between a plurality of crushing hammer bodies (2) and the transmission shaft (1) and the mounting grooves (9) between a plurality of spacer plates (3) and the transmission shaft (1).

6. The modular design and assembly of the crushing shaft assembly according to claim 1 is characterized by: Two crushing sharp corners (10) are fixedly arranged on the outer surface of the crushing hammer body (2), and the two crushing sharp corners (10) are symmetrically arranged relative to the axis center of the crushing hammer body (2); four crushing hammer bodies (2) and three spacer plates (3) are sleeved on the outer side of the transmission shaft (1), and the four crushing hammer bodies (2) and the three spacer plates (3) are arranged alternately, and the spacer plates (3) maintain contact with the crushing hammer bodies (2) on both sides.

7. The modular design and assembly of the crushing shaft assembly according to claim 6, characterized in that: The crushing sharp corners (10) on the same side of the four crushing hammer bodies (2) are located on the same straight line, that is, the angles of the four crushing hammer bodies (2) remain the same.

8. The modular design and assembly of the crushing shaft assembly according to claim 6, characterized in that: The two crushing hammer bodies (2) located on the same side have the same angle, and the included angle between the two crushing hammer bodies (2) on one side and the two crushing hammer bodies (2) on the other side is 60°.

9. The modular design and assembly of the crushing shaft assembly according to claim 6, characterized in that: The two middle crushing hammer bodies (2) have the same angle, the two outermost crushing hammer bodies (2) have the same angle, and the included angle between the two middle crushing hammer bodies (2) and the two outermost crushing hammer bodies (2) is 60°.

10. The modular design and assembly of the crushing shaft assembly according to claim 6, characterized in that: The two outermost breaker hammer bodies (2) have the same angle, the second breaker hammer body (2) rotates 60° clockwise relative to the first breaker hammer body (2), and the third breaker hammer body (2) rotates 60° clockwise relative to the second breaker hammer body (2).

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