Crusher outside bin

Abstract

The utility model discloses a crusher outside a bin, which solves the problems of low crushing efficiency, poor reliability and insufficient crushing capacity of a jaw crusher outside the bin in the prior art. The crusher outside the bin comprises a box body, a stone storage area, a crushing area and a slurry discharging area are sequentially arranged in the box body in the feeding direction, a horizontal pushing type crushing mechanism is arranged at the corresponding position of the crushing area, and a filtering grating is arranged between the crushing area and the slurry discharging area; the horizontal pushing type crushing mechanism comprises a first crushing assembly and a second crushing assembly which are oppositely arranged, and the first crushing assembly and the second crushing assembly move relatively to extrude, crush or stir slag stone entering the crushing area. Compared with the prior art, the outside-bin crusher is high in on-load crushing frequency, high in crushing capacity and good in reliability, can relieve the difficult problem of stagnant discharge of slag slurry in the double-channel muddy water dilution box, and has important significance on improvement of tunneling efficiency and tunnel construction progress.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction equipment technical field, especially point to a crusher. BACKGROUND

[0002] The double-channel slurry shield has strong residue discharging capacity and wide stratum adaptability, and is a main pushing model of slurry shield in complex stratum. At present, the residue discharging form of screw machine + dilution box + jaw crusher in the bin + slurry pipeline is often adopted. However, there are many problems in the use process, mainly as follows: ① the crushing frequency of the crusher is low, taking an 8m slurry shield as an example, the maximum particle size of crushing is 700mm, and the maximum frequency of crushing under load is 3.2 times / min, which seriously restricts the tunneling efficiency in moderately weathered and strongly weathered stratum; ② the oil pipe joint of the crusher leaks oil, and the joint is prone to loosening and oil leakage under harsh working conditions, and the slurry needs to be discharged and the box needs to be opened for processing each time; ③ the grease pipe and the wire in the joint of the crusher will be broken under harsh working conditions, and the slurry needs to be discharged and the box needs to be opened for processing each time; ④ the oil cylinder, retainer and ear seat of the crusher are worn out; ⑤ the grid in the dilution box is broken and deformed; ⑥ the oil cylinder of the crusher is stuck with stones, affecting the extension project. The jaw crusher outside the bin disclosed in the prior art such as Chinese patent CN110433898A adopts a swing crushing principle, but the travel of the pusher is long, and the crushing efficiency under load is low.

[0003] The main reason for the above problems is that the crushing capacity of the crusher is insufficient, and the reliability is poor under harsh working conditions, so that large-diameter residue stones cannot be crushed efficiently, affecting the smoothness of the dilution box-crusher-grid residue discharge channel. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the above background art, the utility model provides an external crusher, which solves the problems of low crushing efficiency, poor reliability and insufficient crushing capacity of the jaw crusher outside the bin in the prior art.

[0005] The technical scheme of the utility model is as follows: an external crusher, comprising a box body, a stone storage area, a crushing area and a slurry discharge area are sequentially arranged in the box body along the feeding direction, a flat push type crushing mechanism is arranged at the corresponding position of the crushing area, and a filter grid is arranged between the crushing area and the slurry discharge area; the flat push type crushing mechanism comprises a first crushing assembly and a second crushing assembly arranged oppositely, and the first crushing assembly and the second crushing assembly move oppositely to crush or stir the residue stones entering the crushing area. The external crusher of the utility model adopts flat push type crushing, the crushing frequency and crushing capacity under load are improved, and the crushing efficiency is improved.

[0006] Further preferably, the box corresponding to the stone storage area is provided with a pulp inlet, and the box corresponding to the pulp discharge area is provided with a pulp discharge port; the box corresponding to the crushing area is provided with a left-right symmetrical conical cylinder body in communication with the box, and the first crushing assembly and the second crushing assembly are respectively located in the corresponding conical cylinder body. The conical cylinder body provides a separate installation space for the crushing assembly, does not occupy the stone storage or pulp discharge space, ensures the flow of the slurry, increases the flow capacity, and makes the slag discharge more smooth.

[0007] Further preferably, the first crushing assembly comprises a first toothed plate head and a first pusher, and the second crushing assembly comprises a second toothed plate head and a second pusher, the first pusher driving the first toothed plate head to move left and right in the box, and the second pusher driving the second toothed plate head to move left and right in the box.

[0008] Further preferably, the first toothed plate head and the second toothed plate head each comprise a jaw plate box, the jaw plate box is provided with N toothed plates, N≥2, the root of the toothed plate is fixed in the jaw plate box, and the top of the toothed plate extends out of the jaw plate box; the bottom of the jaw plate box is provided with a fixed slide; the toothed plates of the first toothed plate head and the toothed plates of the second toothed plate head correspondingly engage; and the slag stone is crushed efficiently.

[0009] Further preferably, the top of the jaw plate box is provided with a clamping groove, the top of the toothed plate is provided with a clamping block protrusion I matched with the clamping groove, the top outer wall of the two toothed plates located on the two sides is provided with a clamping block protrusion II, and the clamping block protrusion II is limitedly matched with the side wall of the jaw plate box; the installation stability of the toothed plate is improved.

[0010] Further preferably, the first pusher and the second pusher are both push oil cylinders, the cylinder barrel of the push oil cylinder is provided with a double lug seat connected with the lug seat arranged on the back of the jaw plate box; the tail of the piston rod of the push oil cylinder is connected with a flange plate, one side of the flange plate is connected with the conical cylinder body, and the other side is connected with a support plate; the connection strength and stability of the push oil cylinder are enhanced.

[0011] Further preferably, the support plate is provided with through holes through which the oil inlet pipe and the oil return pipe of the push oil cylinder pass; the bottom of the support plate is provided with a support bottom plate; one end of the toothed plate is fixed in the jaw plate box through a pin shaft, and the jaw plate box is provided with an end cover for plugging the pin shaft.

[0012] Further preferably, the first toothed plate head is provided with a first top slag blocking plate connected to the box above, and the first toothed plate head is respectively provided with a first front slag blocking plate and a first rear slag blocking plate connected to the box on the left and right sides; the second toothed plate head is provided with a second top slag blocking plate connected to the box above, and the second toothed plate head is respectively provided with a second front slag blocking plate and a second rear slag blocking plate connected to the box on the left and right sides.

[0013] Further preferably, the part of the box corresponding to the stone storage area is in a conical structure, the part of the box corresponding to the crushing area is in a rectangular structure, and the part of the box corresponding to the slurry discharge area is in a conical structure. The flow area of the crusher changes from trapezoidal to rectangular, the flow capacity is increased, and the discharge of the residue is more smooth.

[0014] Further preferably, the box is provided with a standby slurry inlet, at least one bottom flushing port and at least one side flushing port on the part corresponding to the stone storage area. The box is provided with an upper inspection port on the part corresponding to the crushing area, and is provided with rear side flushing ports on the two sides and the part corresponding to the slurry discharge area.

[0015] The beneficial effects of the utility model are that: the utility model adopts the flat push type crushing mechanism, the crushing frequency is higher, and the crushing efficiency is greatly improved. The utility model discloses the pusher of the external crusher adopts the normal pressure external fixed, and the replacement is more convenient. In addition, the utility model discloses the lubrication point of the external crusher is reduced, and the reliability is improved, and the failure rate is reduced, and the use cost is saved.

[0016] The indirect technical effects that the utility model can achieve are that the smoothness of the dilution tank-crusher-grid channel residue discharge of the double-channel tunneling machine is improved, the tunneling efficiency is improved, and the tunnel construction progress is improved. In addition, the equipment use cost and procurement cost are reduced, and the cost of tunnel construction is reduced.

[0017] Compared with the prior art, the external crusher of the utility model has high load crushing frequency, high crushing capacity and good reliability, can alleviate the residue slurry stagnation and discharge problem in the double-channel slurry dilution tank, and has important significance for improving the tunneling efficiency and the tunnel construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a side view of the internal structure of the external crusher of the utility model.

[0020] Figure 2 It is a top view of the internal structure of the external crusher of the utility model.

[0021] Figure 3 It is a front view of the internal structure of the external crusher of the utility model.

[0022] Figure 4 This is a schematic diagram of the horizontal push crushing mechanism of this utility model.

[0023] Figure 5 This is a front view of the filter grid of this utility model.

[0024] Figure 6 This is a front view schematic diagram of the housing of this utility model. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this invention, it should be understood that the terms "vertical," "horizontal," "up," "down," "front," "back," "left," "right," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example 1, as Figure 1 As shown, an external crusher includes a housing 29; within the housing 29, a stone storage area 1, a crushing area 2, and a slurry discharge area 3 are sequentially arranged along the feeding direction. The stone storage area is used for temporary storage of slag; a horizontal pushing crushing mechanism 4 is provided at a corresponding position in the crushing area 2, which utilizes the principle of horizontal pushing and compression crushing to crush the slag located in the crushing area. Figure 5As shown, a filter grid 35 is arranged between the crushing zone 2 and the slag discharge zone 3, and is used for screening the slag stones of different particle sizes. In this embodiment, the box 29 corresponding to the slag storage zone 1 is provided with an inlet 30, and the box 29 corresponding to the slag discharge zone 3 is provided with a discharge port 37. In operation, the slag slurry enters the box through the inlet 30, and under the action of gravity and flushing, it passes through the crushing mechanism to the filter grid and is discharged through the discharge port 37. During the discharge process, the slag stones smaller than the passing particle size of the grid can pass through the grid smoothly, while the slag stones larger than the passing particle size of the grid are retained in front of the grid. At this time, the flat push type crushing mechanism is needed to crush the large particle size slag stones; after crushing to the appropriate particle size, the slag stones pass through the grid and are discharged smoothly; and high-efficiency slag discharge is achieved.

[0029] The flat push type crushing mechanism 4 in this embodiment includes a first crushing assembly 7 and a second crushing assembly 18 arranged oppositely, and the first crushing assembly 7 and the second crushing assembly 18 move oppositely to crush or stir the slag stones entering the crushing zone 2. When the first crushing assembly 7 and the second crushing assembly 18 move oppositely at the same time, the slag stones between them can be crushed by extrusion; and when the first crushing assembly 7 and the second crushing assembly 18 move alternately, the slag slurry in the box can be stirred.

[0030] As shown in Embodiment 2, Figure 2 , 3 As shown in Embodiment 2, an out-of-bin crusher, which is further optimized on the basis of Embodiment 1. In this embodiment, the box 29 corresponding to the crushing zone 2 is provided with a tapered cylinder 26 symmetrically arranged left and right and connected with the box, and the first crushing assembly 7 and the second crushing assembly 18 are respectively located in the corresponding tapered cylinder 26. The first crushing assembly 7 and the second crushing assembly 18 can be located in the tapered cylinder, or part of them can be located in the tapered cylinder. The small-diameter end of the tapered cylinder 26 is connected with the corresponding crushing assembly, and the large-diameter end of the tapered cylinder 26 is sealingly connected with the box. The tapered cylinder is arranged to adapt to the corresponding crushing assembly and increase the installation space of the box. The tapered cylinder provides a separate installation space for the crushing assembly, does not occupy the slag storage or discharge space, ensures the flow of the slag slurry, increases the flow capacity, and makes the slag discharge more smooth.

[0031] In this embodiment, the first crushing assembly 7 includes a first toothed plate head 20 and a first pusher 8, and the second crushing assembly 18 includes a second toothed plate head 17 and a second pusher 19. The first pusher 8 drives the first toothed plate head 20 to move left and right in the box, and the second pusher 19 drives the second toothed plate head 17 to move left and right in the box. The first crushing assembly 7 and the second crushing assembly 18 are the same in structure and are symmetrically arranged in the corresponding tapered cylinder 26. The first pusher and the second pusher can act simultaneously or independently.

[0032] The crusher, through the design of the aforementioned crushing components, has two modes: crushing mode and mixing mode. In crushing mode, the first pusher drives the first toothed plate head to move towards the center, and the second pusher drives the second toothed plate head to move towards the center. Under the drive of the pushers, the two toothed plates head jointly squeeze large-diameter slag, compressing the large-diameter slag into small-diameter slag, which is then discharged through the slurry discharge port through the grid. If it cannot be crushed to the required extent in one go, it can be crushed multiple times.

[0033] In the stirring mode, the first crushing component and the second crushing component do not move towards the center at the same time. The first pusher drives the first toothed plate head to move towards the center, while the second crushing component remains stationary at the position where the second pusher's stroke is shortest. When the second pusher drives the second toothed plate head to move towards the center, the first crushing component remains stationary at the position where the first pusher's stroke is shortest. The two crushing components alternately move in translation and extension, stirring the slurry in the tank alternately from left to right, thus accelerating the flow of the slurry.

[0034] In this embodiment, as a preferred option, such as Figure 4 As shown, both the first toothed head 20 and the second toothed head 17 include a jaw plate box 6, on which N toothed plates 5 are provided, where N≥2; in this embodiment, N=5 is taken as an example, with five toothed plates arranged in parallel on the jaw plate box. The root of the toothed plate 5 is fixed inside the jaw plate box 6, and the top extends out of the jaw plate box 6; the toothed plates extending out of the jaw plate box form a toothed surface, increasing the crushing working surface and improving the crushing efficiency. Specifically, the toothed plates 5 are fixed inside the jaw plate box 6 by pins 16, and the jaw plate box 6 is provided with end caps 10 to seal the pins 16; that is, end cap holes are designed on both sides of the jaw plate box, and the end caps are placed in the end cap holes to prevent mud from entering the pin and affecting the flexibility of the toothed head. It should be noted that the toothed plates 5 of the first toothed head 20 and the toothed plates 5 of the second toothed head 17 mesh with each other, enabling rapid crushing of slag and stone. In this embodiment, a fixed slide 9 is fixedly provided at the bottom of the jaw plate box 6; during the translational movement of the tooth plate head relative to the box body, the fixed slide slides in contact with the box body to reduce the wear of the jaw plate box and tooth plate, thereby protecting the tooth plate head and enhancing the crushing strength of the tooth plate head.

[0035] In this preferred embodiment, the jaw plate box 6 has a slot 61 at its top, and the toothed plate 5 has a locking protrusion I51 that mates with the slot 61 at its top; during installation, ensure that the locking protrusion I51 is securely engaged within the slot 61 to limit the position of the toothed plate. Figure 3 Based on the view, the engagement of the locking block protrusion I 51 and the locking groove 61 limits the toothed plate in the X direction. The top outer walls of the two toothed plates 5 on both sides are provided with locking block protrusions II 52. At this time, the longitudinal section of the toothed plate 5 is L-shaped, and the locking block protrusions II 52 engage with the side wall of the jaw plate box 6 for limiting movement. Figure 2The view is the reference, the jaw box 6 is U-shaped structure, the block protrusion II 52 is clamped with the side end of the jaw box 6, and the toothed plate is limited in the X direction; at the same time, the force on the top of the toothed plate can be transmitted to the jaw box, the strength of the toothed plate is enhanced, and the service life of the toothed plate is prolonged.

[0036] In the embodiment, the first pusher 8 and the second pusher 19 are both push oil cylinders 13, the cylinder part of the push oil cylinder 13 is provided with a double lug seat 12, the double lug seat 12 is connected with the lug seat 11 arranged at the back of the jaw box 6, the double lug seat and the lug seat are connected by a pin shaft, so that the jaw box has a certain degree of freedom, and the impact force of the toothed plate in the process of extruding the rock is buffered. In the embodiment, the tail part of the piston rod of the push oil cylinder 13 is connected with a flange plate 15, one side of the flange plate 15 is connected with a conical cylinder body 26, and the other side is connected with a support plate 24; that is, the flange plate 15 is located between the end part of the conical cylinder body 26 and the support plate 24, and the three are connected by bolts, so that the push oil cylinder is stably connected in the conical cylinder.

[0037] In the embodiment, the support plate 24 is provided with through holes through which the oil inlet pipe 21 and the oil return pipe 22 of the push oil cylinder 13 pass; the flange plate 15 is provided with an oil inlet and an oil return, the oil inlet is connected with the oil inlet pipe 13, and the oil return is connected with the oil return pipe 14; the oil inlet and outlet are normally exposed to avoid oil pipe wear. The bottom of the support plate 24 is provided with a support bottom plate 23; in the process of pushing the rock by the crushing assembly, the fixed slide way supports the reciprocating movement of the crushing assembly, the box flange and the support plate bear the reaction force of the pusher; the efficiency of the oil cylinder pushing and the stability of the toothed plate crushing rock are ensured.

[0038] Embodiment 3, as Figure 6As shown, an off-bin crusher, based on Embodiment 1 or 2, is further optimized in this embodiment. A first top slag baffle 27 connected to the box 29 is arranged above the first tooth plate head 20, and a first front slag baffle 42 and a first rear slag baffle 43 connected to the box 29 are arranged on the left and right sides of the first tooth plate head 20. The first top slag baffle 27, the first front slag baffle 42, and the first rear slag baffle 43 cooperate to form a door-shaped slag baffle structure for protecting the first tooth plate head in three directions, preventing slag from directly impacting the tooth plate head, and guiding the slag to smoothly enter between the two crushing assemblies. This avoids the slag entering the rear area of the first crushing assembly, affecting the extension and retraction action of the first pusher. A certain gap is left between the first top slag baffle 27, the first front slag baffle 42, the first rear slag baffle 43, and the first tooth plate head, allowing the first tooth plate head to have a certain degree of freedom for efficient crushing of slag. Similarly, a second top slag baffle 28 connected to the box 29 is arranged above the second tooth plate head 17, and a second front slag baffle 47 and a second rear slag baffle 46 connected to the box 29 are arranged on the left and right sides of the second tooth plate head 17. The second top slag baffle 28, the second front slag baffle 47, and the second rear slag baffle 46 cooperate to form a door-shaped slag baffle structure for protecting the second tooth plate head in three directions, preventing slag from directly impacting the tooth plate head, and guiding the slag to smoothly enter between the two crushing assemblies. This avoids the slag entering the rear area of the second crushing assembly, affecting the extension and retraction action of the second pusher. A certain gap is also left between the second top slag baffle 28, the second front slag baffle 47, the second rear slag baffle 46, and the second tooth plate head.

[0039] In this embodiment, the part of the box 29 corresponding to the stone storage area 1 is a conical structure. The conical structure is horizontally placed to allow the incoming slag slurry to flow smoothly to the crushing area. The part of the box 29 corresponding to the crushing area 2 is a rectangular structure. The flow area of the crusher changes from trapezoidal to rectangular, increasing the flow capacity. The part of the box 29 corresponding to the slurry discharge area 3 is a conical structure. The design of this conical structure facilitates the smooth discharge of slurry from the slurry discharge area.

[0040] As a preferred solution, the box 29 has a standby slurry inlet 32, at least one bottom flushing port 33, and at least one side flushing port 40. In this embodiment, three bottom flushing ports and two side flushing ports are used as an example. The three bottom flushing ports are located at the front end of the box and are respectively the bottom flushing port 33, the left side bottom flushing port 38, and the right side bottom flushing port 39. The two side flushing ports are respectively the left side flushing port 40 and the right side flushing port 42, and are located on the two sides of the box corresponding to the stone storage area. To avoid the accumulation of slag in the stone storage area, the slurry needs to enter the stone storage area from the bottom flushing port during use, improving the through capacity of the slag slurry in this area.

[0041] As a preferred scheme, the box 29 is provided with an upper inspection opening 34 corresponding to the crushing area 2, facilitating the maintenance of the flat push type crushing mechanism in the box. The box 29 is provided with rear flushing openings 44 corresponding to the slurry discharge area 3 on both sides. The two flushing openings are respectively a first flushing opening 44 arranged at the rear side of the grating and a second flushing opening 45 arranged at the rear side of the grating. In order to avoid the accumulation of slag stones at the rear side of the grating, the slurry needs to enter the slag discharge area from the first flushing opening and the second flushing opening arranged at the rear side of the grating during use, thereby improving the passing capacity of the slag slurry in the area.

[0042] Compared with the prior art, the out-of-bin crusher of the utility model has high crushing frequency, high crushing capacity and good reliability, can relieve the problem of the difficulty in discharging the slag slurry in the double-channel mud dilution box, and is of great significance to improving the tunneling efficiency and the tunnel construction progress.

[0043] The above description is only a preferred embodiment of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An off- bin crusher comprising a housing (29), characterised in that: The box (29) is sequentially provided with a stone storage area (1), a crushing area (2) and a slurry discharge area (3) in the feeding direction, the crushing area (2) is provided with a flat push type crushing mechanism (4) at a corresponding position, and a filter grid (35) is arranged between the crushing area (2) and the slurry discharge area (3). The flat push type crushing mechanism (4) comprises oppositely arranged first and second crushing assemblies (7, 18), and the first and second crushing assemblies (7, 18) are relatively moved to crush or stir the slag stones entering the crushing area (2).

2. The off-carrier crusher of claim 1, wherein: The corresponding box (29) of the stone storage area (1) is provided with a slurry inlet (30), and the corresponding box (29) of the slurry discharge area (3) is provided with a slurry discharge port (37); the corresponding box (29) of the crushing area (2) is symmetrically provided with a conical cylinder (26) which is connected with the box, and the first and second crushing assemblies (7, 18) are respectively located in the corresponding conical cylinder (26).

3. An off-carrier crusher according to claim 2, characterised in that: The first crushing assembly (7) comprises a first toothed plate head (20) and a first pusher (8), and the second crushing assembly (18) comprises a second toothed plate head (17) and a second pusher (19); the first pusher (8) drives the first toothed plate head (20) to move leftward and rightward in the box; and the second pusher (19) drives the second toothed plate head (17) to move leftward and rightward in the box.

4. An off-carrier crusher according to claim 3, characterised in that: The first toothed plate head (20) and the second toothed plate head (17) each comprise a jaw plate box (6), the jaw plate box (6) is provided with N toothed plates (5), N≥2, the roots of the toothed plates (5) are fixed in the jaw plate box (6) and the top portions of the toothed plates (5) extend out of the jaw plate box (6); the bottom of the jaw plate box (6) is provided with a fixed slide (9); the toothed plates (5) of the first toothed plate head (20) are engaged with the toothed plates (5) of the second toothed plate head (17).

5. An off-carrier crusher according to claim 4, characterised in that: The top of the jaw plate box (6) is provided with a clamping groove (61), the top of the toothed plate (5) is provided with a clamping block protrusion I (51) matched with the clamping groove (61); the top outer wall of the two toothed plates (5) on the two sides is provided with a clamping block protrusion II (52), and the clamping block protrusion II (52) is limitedly matched with the side wall of the jaw plate box (6).

6. An off-carrier crusher according to claim 4 or 5, characterised in that: The first pusher (8) and the second pusher (19) are both push oil cylinders (13), the cylinder barrel of the push oil cylinder (13) is provided with a double lug seat (12), the double lug seat (12) is connected with a lug seat (11) arranged on the back of the jaw plate box (6); the tail of the piston rod of the push oil cylinder (13) is connected with a flange plate (15), one side of the flange plate (15) is connected with the conical cylinder (26) and the other side is connected with a support plate (24).

7. An off-carrier crusher according to claim 6, characterised in that: The support plate (24) is provided with through holes through which an oil inlet pipe (21) and an oil return pipe (22) of the push oil cylinder (13) pass; the bottom of the support plate (24) is provided with a support bottom plate (23); one end of the toothed plate (5) is fixed in the jaw plate box (6) through a pin shaft (16), and the jaw plate box (6) is provided with an end cover (10) for plugging the pin shaft (16).

8. An off-carrier crusher according to claim 3 or 4 or 7, characterised in that: The first toothed plate head (20) is provided with a first top slag baffle (27) connected to the box (29), and the left and right sides of the first toothed plate head (20) are respectively provided with a first front slag baffle (42) and a first rear slag baffle (43) connected to the box (29); the second toothed plate head (17) is provided with a second top slag baffle (28) connected to the box (29), and the left and right sides of the second toothed plate head (17) are respectively provided with a second front slag baffle (47) and a second rear slag baffle (46) connected to the box (29).

9. The off-carrier breaker of claim 1, wherein: The part of the box (29) corresponding to the stone storage area (1) is in a conical structure, the part of the box (29) corresponding to the crushing area (2) is in a rectangular structure, and the part of the box (29) corresponding to the slurry discharge area (3) is in a conical structure; the box (29) is provided with a standby slurry inlet (32), at least one bottom flushing opening (33) and at least one side flushing opening (40) corresponding to the stone storage area (1).

10. An off-carrier crusher according to claim 1 or 9, characterized in that: The box (29) is provided with an upper inspection opening (34) corresponding to the crushing area (2), and the box (29) is provided with a rear side flushing opening (44) corresponding to the slurry discharge area (3).

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