Counterattack crushing device

Abstract

The utility model provides a counterattack crushing device, including the casing, the apron, drive mechanism, trigger mechanism and controller, be equipped with the feed inlet on the casing, the apron is located the top of feed inlet, drive mechanism is connected between the casing with the apron, the controller is electrically connected with drive mechanism, trigger mechanism respectively, trigger mechanism is configured as when the size of the material to be crushed is greater than the size of feed inlet, sends trigger signal, the controller is configured as according to trigger signal controls drive mechanism drives the apron moves to increase the size of feed inlet. The counterattack crushing device of the utility model reduces the manual operation danger and manpower cost, realizes intelligent crushing material.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to an impact crusher device. Background Technology

[0002] Impact crushers typically use a vibrating feeder for feeding. The material enters the feed inlet through the feeder and eventually enters the impact crusher for crushing. Since the size of the feed inlet is fixed, when the material volume is large, blockage often occurs at the feed inlet, which increases the equipment maintenance rate and directly affects the material production capacity.

[0003] To address the issue of large materials being unable to pass through the feed inlet, the current solution involves installing a movable cover plate above the feed inlet and using a actuator to flip the cover plate, thereby increasing the feed inlet size. When the material size exceeds the feed inlet size, the operator uses a remote control to activate the actuator, which then flips the cover plate away from the feed inlet, increasing the feed inlet size and allowing the large material to pass through and enter the crusher.

[0004] Existing impact crushers require dedicated personnel to constantly monitor the material's condition at the feed inlet and then use a remote control to adjust the feed inlet size via the drive unit. This is labor-intensive and has a low level of automation. Utility Model Content

[0005] In view of this, the present invention provides an impact crusher that reduces the dangers and labor costs of manual operation and realizes intelligent material crushing.

[0006] An impact crusher includes a housing, a cover plate, a drive mechanism, a trigger mechanism, and a controller. The housing has a feed inlet, and the cover plate is disposed above the feed inlet. The drive mechanism is connected between the housing and the cover plate. The controller is electrically connected to the drive mechanism and the trigger mechanism. The trigger mechanism is configured to issue a trigger signal when the size of the material to be crushed is larger than the size of the feed inlet. The controller is configured to control the drive mechanism to move the cover plate according to the trigger signal to increase the size of the feed inlet.

[0007] Optionally, the triggering mechanism includes a trigger plate and a sensor. The trigger plate is movably connected to the cover plate, and the sensor is linked between the cover plate and the trigger plate. When a material larger than the feed inlet touches the trigger plate and causes the movement range of the trigger plate to exceed a set range, the sensor is triggered by the trigger plate, and the sensor emits the trigger signal.

[0008] Optionally, the trigger plate is provided with a boss, and the sensor is provided with a trigger rod. The trigger rod is at least partially disposed above the boss, and the flipping of the trigger plate can cause the boss to push the trigger rod to trigger the sensor.

[0009] Optionally, the trigger plate is connected to the edge of the cover plate near the feed inlet, a portion of the boss is connected to the trigger plate, and the other portion of the boss is disposed on the upper surface of the cover plate.

[0010] Optionally, the cover plate is provided with at least one first connecting seat, the trigger plate is provided with at least one second connecting seat, and the impact crushing device further includes at least one elastic element, the elastic element is connected between the first connecting seat and the second connecting seat, and the elastic element uses elastic force to make the boss abut against the upper surface of the cover plate.

[0011] Optionally, the first connecting seat includes two first connecting plates and a first connecting shaft disposed opposite to each other. Each first connecting plate is provided with a plurality of first connecting holes, and the first connecting shaft is detachably connected to the first connecting holes of the two first connecting plates. The second connecting seat includes two second connecting plates and a second connecting shaft disposed opposite to each other. Each second connecting plate is provided with at least one second connecting hole, and the second connecting shaft is connected to the second connecting holes of the two second connecting plates. The elastic element is connected between the first connecting shaft and the second connecting shaft.

[0012] Optionally, the cover plate is provided with at least one first hinge arm, and the housing is provided with at least one first hinge seat. The end of the first hinge arm away from the cover plate is hinged to the first hinge seat, and the driving mechanism is used to drive the cover plate to rotate around the hinge point between the first hinge arm and the first hinge seat.

[0013] Optionally, the cover plate is provided with at least one second hinge arm, and the trigger plate is provided with at least one second hinge seat. The end of the second hinge arm away from the cover plate is hinged to the second hinge seat. When material larger than the feed inlet touches the trigger plate, it can drive the trigger plate to rotate around the hinge point between the second hinge arm and the second hinge seat.

[0014] Optionally, the second hinge arm includes a fixed section and an extension section connected to each other. The fixed section is connected to the upper surface of the cover plate, and the end of the extension section away from the fixed section is hinged to the second hinge seat. The extension section is located above the trigger plate. When the material touches the trigger plate and flips it toward the feed port until the edge of the trigger plate near the cover plate contacts the extension section, the extension section limits the trigger plate.

[0015] Optionally, a wear-resistant plate is connected to the lower surface of the trigger plate near the feed inlet.

[0016] Optionally, the wear-resistant plate is an arc-shaped plate that protrudes into the feed inlet.

[0017] Optionally, the impact crusher further includes a plurality of first rubber plates and a plurality of second rubber plates, the ends of the plurality of first rubber plates and the plurality of second rubber plates being fixed to the cover plate, the plurality of first rubber plates and the plurality of second rubber plates being disposed in the feed inlet, and the first rubber plates and the second rubber plates being arranged in two staggered rows.

[0018] Optionally, the cover plate is provided with a plurality of through holes, which are arranged sequentially at intervals along the width direction of the feed inlet. A support rod is connected to the cover plate and is disposed above each of the through holes. The impact crusher also includes a plurality of chains, each of which is disposed in the feed inlet. The end of each chain passes through each of the through holes and is connected to the support rod. Each chain is disposed adjacent to each of the first rubber plates or each of the second rubber plates.

[0019] Optionally, the housing has a first support platform and a second support platform on opposite sides. The driving mechanism includes a first driver and a second driver. One end of the first driver is connected to the first support platform, and the other end of the first driver is connected to the cover plate. One end of the second driver is connected to the second support platform, and the other end of the second driver is connected to the cover plate.

[0020] Optionally, the first support platform is provided with a first support, the second support platform is provided with a second support, the cover plate is connected with a third support and a fourth support, one end of the first driver is hinged to the first support, the other end of the first driver is hinged to the third support, one end of the second driver is hinged to the second support, and the other end of the second driver is hinged to the fourth support.

[0021] Optionally, the triggering mechanism includes a vision sensor configured to visually observe the material fed into the feed inlet; and to issue a trigger signal when the vision sensor observes that the size of the material to be crushed is larger than the size of the feed inlet.

[0022] The impact crusher of this utility model is equipped with a triggering mechanism. When the material size is larger than the feed opening size, it can send a trigger signal, which in turn causes the controller to control the drive mechanism to move the cover plate to increase the feed opening size. The whole process does not require manual intervention, which reduces the danger of manual operation and labor costs, and realizes intelligent material crushing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the impact crusher of this application.

[0024] Figure 2 This is a cross-sectional structural diagram of the impact crusher of this application during material feeding.

[0025] Figure 3 yes Figure 2 The diagram shows a partial structural schematic of the impact crusher.

[0026] Figure 4 This is a schematic diagram of the triggering mechanism of this application.

[0027] Figure 5 This is a structural schematic diagram of the cover plate of this application.

[0028] Figure 6 This is a partially enlarged structural schematic diagram of the impact crusher of this application. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0030] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.

[0031] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0032] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0033] Figure 1 This is a schematic diagram of the impact crusher of this application. Figure 2 This is a cross-sectional structural diagram of the impact crusher of this application during material feeding. Figure 3 yes Figure 2 The schematic diagram of a partial structure of the impact crusher shown is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the impact crusher includes a housing 11, a cover plate 12, a drive mechanism 13, a trigger mechanism 14, and a controller (not shown). The housing 11 has a feed inlet 101, and the cover plate 12 is positioned above the feed inlet 101. The drive mechanism 13 is connected between the housing 11 and the cover plate 12. The controller is electrically connected to both the drive mechanism 13 and the trigger mechanism 14. The trigger mechanism 14 is configured to issue a trigger signal when the size of the material to be crushed is larger than the size of the feed inlet 101. The controller is configured to control the drive mechanism 13 to move the cover plate 12 according to the trigger signal to increase the size of the feed inlet 101. In this embodiment, the size of the material refers, for example, to the height or volume of a single material along the height direction of the feed inlet 101, or the height or volume of materials stacked together (e.g., ...). Figure 2 As shown, if the height of the material is greater than the height of the feed inlet 101, the material cannot smoothly enter the housing 11 from the feed inlet 101. At this time, the drive mechanism 13 is needed to drive the cover plate 12 to move, thereby increasing the height of the feed inlet 101, so that large single materials or stacked materials can smoothly enter the housing 11 from the feed inlet 101.

[0034] The impact crusher of this application is equipped with a triggering mechanism 14, which can send a triggering signal when the material size is larger than the feed opening 101, thereby causing the controller to control the drive mechanism 13 to move the cover plate 12 to increase the size of the feed opening 101. The whole process does not require manual intervention, reducing the danger of manual operation and labor costs, and realizing intelligent material crushing.

[0035] Optionally, such as Figure 1 and Figure 2 As shown, the impact crusher also includes a rotor 151 and a crushing drive 152 that drives the rotor 151 to rotate. The rotor 151 is at least partially disposed in the housing 11. The rotor 151 is linked to the crushing drive 152, which drives the rotor 151 to rotate to crush the material.

[0036] Optionally, the impact crusher also includes a vibration mechanism for feeding the material to be crushed into the feed inlet 101. In this embodiment, the vibration mechanism is connected to the feed inlet 101, and the vibration mechanism can generate vibration to feed the material into the feed inlet 101.

[0037] Optionally, the controller may be, for example, a PLC controller, but is not limited thereto.

[0038] Optionally, after the drive mechanism 13 drives the cover plate 12 to open for a set time, the controller controls the drive mechanism 13 to drive the cover plate 12 to reset. In this embodiment, the set time is, for example, 15 seconds to 30 seconds, and can be freely set according to actual needs.

[0039] Optionally, Figure 4 This is a schematic diagram of the triggering mechanism of this application, as shown below. Figure 1 and Figure 4 As shown, the triggering mechanism 14 includes a trigger plate 141 and a sensor 142. The trigger plate 141 is movably connected to the cover plate 12, and the sensor 142 is linked between the cover plate 12 and the trigger plate 141. When material larger than the feed inlet 101 touches the trigger plate 141 and causes the movement range of the trigger plate 141 to exceed a set range, the sensor 142 is triggered by the trigger plate 141 and sends a trigger signal. At this time, the drive mechanism 13 drives the cover plate 12. When the movement range of the trigger plate 141 is less than or equal to the set range, the sensor 142 is not triggered, and the material can smoothly pass through the feed inlet 101 and enter the interior of the housing 11. In this embodiment, the set range is, for example, the flip angle of the trigger plate 141, which is 20° to 60°, such as 25°, 30°, 35°, 40°, 45°, 50°, and 55°.

[0040] Optionally, such as Figure 1 and Figure 4 As shown, the trigger plate 141 has a boss 143, and the sensor 142 is provided with a trigger rod 1421. The trigger rod 1421 is at least partially disposed above the boss 143. When the trigger plate 141 is flipped, the boss 143 pushes the trigger rod 1421 to trigger the sensor 142. When a large material touches the trigger plate 141 and causes it to flip, the boss 143 tilts up to a certain height along with the trigger rod 1421 until the range of motion of the trigger plate 141 exceeds a set range. At this time, the boss 143 pushes the trigger rod 1421, and the sensor 142 is triggered to emit a trigger signal. In this embodiment, the sensor 142 is, for example, a limit switch or an angle sensor, but is not limited to these.

[0041] In another embodiment, a linkage structure is connected between the sensor 142 and the trigger plate 141; when the trigger plate 141 is flipped, the trigger plate 141 drives the linkage structure to trigger the sensor 142.

[0042] Optionally, such as Figure 1 and Figure 4 As shown, the trigger plate 141 is connected to the edge of the cover plate 12 near the feed port 101, a part of the boss 143 is connected to the trigger plate 141, and the other part of the boss 143 is disposed on the upper surface of the cover plate 12.

[0043] Optionally, Figure 5 This is a structural schematic diagram of the cover plate of this application. Figure 6 This is a partially enlarged structural schematic diagram of the impact crusher of this application, as shown below. Figure 5 and Figure 6 As shown, the cover plate 12 is provided with at least one first connecting seat 121, and the trigger plate 141 is provided with at least one second connecting seat 144. The impact crusher also includes at least one elastic element 16, which is connected between the first connecting seat 121 and the second connecting seat 144. The elastic element 16 uses its elastic force to make the boss 143 abut against the upper surface of the cover plate 12. When the trigger plate 141 is not touched by material, the elastic element 16 uses its elastic force to make the boss 143 abut against the upper surface of the cover plate 12. At this time, the boss 143 limits the trigger plate 141, keeping the trigger plate 141 in a horizontal state. When the trigger plate 141 is touched by material, the trigger plate 141 flips, causing the elastic element 16 to elastically stretch. At this time, the boss 143 moves away from the cover plate 12 along with the trigger plate 141. When the material enters the interior of the housing 11 from the feed inlet 101, the elastic element 16 uses its elastic force to reset the trigger plate 141, preparing for the next feeding. In this embodiment, the elastic element 16 can reset the trigger plate 141 after it is flipped, and can also prevent the trigger plate 141 from vibrating with the crushing device.

[0044] Optionally, the elastic element 16 may be, for example, a tension spring or a sheet, but is not limited thereto.

[0045] Optionally, such as Figure 5 and Figure 6 As shown, the first connecting seat 121 includes two opposing first connecting plates 1211 and a first connecting shaft 1212. Each first connecting plate 1211 has multiple first connecting holes 102, and the first connecting shaft 1212 is detachably connected to the first connecting holes 102 of the two first connecting plates 1211. The second connecting seat 144 includes two opposing second connecting plates 1441 and a second connecting shaft 1442. Each second connecting plate 1441 has at least one second connecting hole 103, and the second connecting shaft 1442 is connected to the second connecting holes 103 of the two second connecting plates 1441. An elastic element 16 is connected between the first connecting shaft 1212 and the second connecting shaft 1442. In this embodiment, when the first connecting shaft 1212 is connected to different first connecting holes 102, the initial elastic force provided by the elastic element 16 is different, and the first connecting shaft 1212 can be installed in the corresponding first connecting hole 102 according to different crushed materials.

[0046] Optionally, the first connecting shaft 1212 and / or the second connecting shaft 1442 may be, for example, a screw, which is connected to the first connecting plate 1211 or the second connecting plate 1441 in conjunction with a nut.

[0047] Optionally, the height of the first connecting shaft 1212 is less than the height of the second connecting shaft 1442, so the elastic element 16 is inclined relative to the cover plate 12.

[0048] Optionally, such as Figure 1 and Figure 5 As shown, the cover plate 12 is provided with at least one first hinge arm 122, and the housing 11 is provided with at least one first hinge seat 111. The end of the first hinge arm 122 away from the cover plate 12 is hinged to the first hinge seat 111. The driving mechanism 13 is used to drive the cover plate 12 to rotate around the hinge point between the first hinge arm 122 and the first hinge seat 111. In this embodiment, the first hinge arm 122 is located on the side of the cover plate 12 away from the feed inlet 101.

[0049] Optionally, such as Figure 1 and Figure 5 As shown, the cover plate 12 is provided with at least one second hinge arm 123, and the trigger plate 141 is provided with at least one second hinge seat 145. The end of the second hinge arm 123 away from the cover plate 12 is hinged to the second hinge seat 145. When material larger than the feed inlet 101 touches the trigger plate 141, it can cause the trigger plate 141 to rotate around the hinge point between the second hinge arm 123 and the second hinge seat 145. The rotation direction of the trigger plate 141 is towards the feed inlet 101. In this embodiment, the second hinge arm 123 is disposed on the side of the cover plate 12 near the feed inlet 101.

[0050] Optionally, such as Figure 5 As shown, the second hinge arm 123 includes a fixed section 1231 and an extension section 1232 connected to each other. The fixed section 1231 is connected to the upper surface of the cover plate 12, and the end of the extension section 1232 away from the fixed section 1231 is hinged to the second hinge seat 145. The extension section 1232 is located above the trigger plate 141. When the material touches the trigger plate 141, it flips towards the feed inlet 101 until the trigger plate 141 contacts the extension section 1232 near the edge of the cover plate 12. At this point, the extension section 1232 limits the trigger plate 141. In this embodiment, the extension section 1232 can limit the trigger plate 141, allowing the trigger plate 141 to flip within a controllable range, preventing excessive flipping and damage to the elastic element 16.

[0051] Optionally, such as Figure 2 and Figure 3 As shown, a wear-resistant plate 146 is connected to the lower surface of the trigger plate 141 near the feed inlet 101. When material larger than the feed inlet 101 touches the trigger plate 141, the wear-resistant plate 146 directly contacts the material, and the friction between the wear-resistant plate 146 and the material drives the trigger plate 141 to flip. In this embodiment, the wear-resistant plate 146 is provided to increase the service life of the trigger plate 141 and to facilitate material contact with the trigger plate 141 to cause it to flip.

[0052] Optionally, such as Figure 2 and Figure 3 As shown, the wear-resistant plate 146 is an arc-shaped plate that protrudes into the feed inlet 101.

[0053] Optionally, such as Figure 1 and Figure 2 As shown, the impact crusher also includes multiple first rubber plates 17 and multiple second rubber plates 18. The ends of the multiple first rubber plates 17 and multiple second rubber plates 18 are fixed to the cover plate 12. The multiple first rubber plates 17 and multiple second rubber plates 18 are disposed in the feed inlet 101, and the first rubber plates 17 and the second rubber plates 18 are arranged in two staggered rows. In this embodiment, the multiple first rubber plates 17 and multiple second rubber plates 18 cooperate to block the material splashing inside the housing 11. In particular, when the drive mechanism 13 drives the cover plate 12 to increase the size of the feed inlet 101, it prevents material from splashing and causing injury, thus improving the safety of the equipment.

[0054] Optionally, such as Figure 1 and Figure 5 As shown, the cover plate 12 is provided with a plurality of first insertion holes 104, a plurality of second insertion holes 105, a plurality of first fasteners 124 and a plurality of second fasteners 125. The first insertion holes 104 and the second insertion holes 105 are arranged in two staggered rows. The ends of the first rubber plates 17 pass through the first insertion holes 104 and are connected to the cover plate 12 by the first fasteners 124. The ends of the second rubber plates 18 pass through the second insertion holes 105 and are connected to the cover plate 12 by the second fasteners 125.

[0055] Optionally, such as Figure 1 and Figure 5 As shown, the cover plate 12 is provided with a plurality of through holes 106, which are arranged sequentially at intervals along the width direction of the feed inlet 101. A support rod 127 is connected to the cover plate 12, and the support rod 127 is positioned above each through hole 106. The impact crusher also includes a plurality of chains 19, each chain 19 being disposed in the feed inlet 101. The end of each chain 19 passes through each through hole 106 and is connected to the support rod 127. Each chain 19 is disposed adjacent to each first rubber plate 17 or each second rubber plate 18. In this embodiment, the chain 19 and rubber plates (first rubber plate 17 and second rubber plate 18) in the feed inlet 101 can effectively prevent the fine material from splashing after crushing. When the impact operation is carried out, the material in the shell 11 moves at high speed under the drive of the rotor 151. If the drive mechanism 13 drives the cover plate 12 to rotate to a certain height, the first rubber plate 17 and the second rubber plate 18 cannot block the fine material from splashing at the bottom of the feed inlet 101. Since the chain 19 hangs down naturally under the action of gravity, it can block the fine material from splashing at the bottom of the feed inlet 101.

[0056] Optionally, such as Figure 1 As shown, the housing 11 has a first support platform 112 and a second support platform (not shown) on opposite sides. The drive mechanism 13 includes a first driver 131 and a second driver (not shown). One end of the first driver 131 is connected to the first support platform 112, and the other end of the first driver 131 is connected to the cover plate 12. One end of the second driver is connected to the second support platform, and the other end of the second driver is connected to the cover plate 12. In this embodiment, the first driver 131 and the second driver are, for example, an electric hydraulic cylinder, a pneumatic cylinder, or a linear motor module, but are not limited thereto.

[0057] Optionally, a first support 113 is provided on the first support platform 112, a second support is provided on the second support platform, a third support 126 and a fourth support are connected to the cover plate 12, one end of the first driver 131 is hinged to the first support 113, the other end of the first driver 131 is hinged to the third support 126, one end of the second driver is hinged to the second support, and the other end of the second driver is hinged to the fourth support.

[0058] In another embodiment, the triggering mechanism 14 includes a vision sensor configured to visually observe the material fed into the feed inlet 101; and to issue a trigger signal when the vision sensor observes that the size of the material to be crushed is larger than the size of the feed inlet 101.

[0059] In another embodiment, the cover plate 12 is slidably connected to the housing 11 in the horizontal direction, and the drive mechanism 13 is used to drive the cover plate 12 to slide in order to increase the size of the feed inlet 101.

[0060] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. An impact crusher, characterized in that, The device includes a housing, a cover plate, a drive mechanism, a trigger mechanism, and a controller. The housing has a feed inlet, and the cover plate is positioned above the feed inlet. The drive mechanism is connected between the housing and the cover plate. The controller is electrically connected to both the drive mechanism and the trigger mechanism. The trigger mechanism is configured to issue a trigger signal when the size of the material to be crushed is larger than the size of the feed inlet. The controller is configured to control the drive mechanism to move the cover plate according to the trigger signal to increase the size of the feed inlet.

2. The impact crusher as described in claim 1, characterized in that, The triggering mechanism includes a trigger plate and a sensor. The trigger plate is movably connected to the cover plate, and the sensor is linked between the cover plate and the trigger plate. When a material larger than the feed inlet touches the trigger plate and causes the trigger plate to move beyond a set range, the sensor is triggered by the trigger plate and emits the trigger signal.

3. The impact crusher as described in claim 2, characterized in that, The trigger plate is provided with a boss, and the sensor is provided with a trigger rod. The trigger rod is at least partially disposed above the boss. When the trigger plate is flipped, the boss can push the trigger rod to trigger the sensor.

4. The impact crusher as described in claim 3, characterized in that, Includes at least one of the following: The trigger plate is connected to the edge of the cover plate near the feed inlet, a portion of the boss is connected to the trigger plate, and the other portion of the boss is disposed on the upper surface of the cover plate; The cover plate is provided with at least one first connecting seat, the trigger plate is provided with at least one second connecting seat, and the impact crushing device further includes at least one elastic element. The elastic element is connected between the first connecting seat and the second connecting seat, and the elastic element uses elastic force to make the boss abut against the upper surface of the cover plate. The first connecting seat includes two first connecting plates and a first connecting shaft arranged opposite to each other. Each first connecting plate is provided with a plurality of first connecting holes, and the first connecting shaft is detachably connected to the first connecting holes of the two first connecting plates. The second connecting seat includes two second connecting plates and a second connecting shaft arranged opposite to each other. Each second connecting plate is provided with at least one second connecting hole, and the second connecting shaft is connected to the second connecting holes of the two second connecting plates. The elastic element is connected between the first connecting shaft and the second connecting shaft.

5. The impact crusher as described in claim 2, characterized in that, The cover plate is provided with at least one first hinge arm, and the housing is provided with at least one first hinge seat. The end of the first hinge arm away from the cover plate is hinged to the first hinge seat. The driving mechanism is used to drive the cover plate to rotate around the hinge point between the first hinge arm and the first hinge seat; and / or, The cover plate is provided with at least one second hinge arm, and the trigger plate is provided with at least one second hinge seat. The end of the second hinge arm away from the cover plate is hinged to the second hinge seat. When material larger than the feed inlet touches the trigger plate, it can drive the trigger plate to rotate around the hinge point between the second hinge arm and the second hinge seat.

6. The impact crusher as described in claim 5, characterized in that, Includes at least one of the following: The second hinge arm includes a fixed section and an extension section connected to each other. The fixed section is connected to the upper surface of the cover plate, and the end of the extension section away from the fixed section is hinged to the second hinge seat. The extension section is located above the trigger plate. When the material touches the trigger plate and causes it to flip towards the feed port, until the edge of the trigger plate near the cover plate contacts the extension section, the extension section limits the trigger plate. A wear-resistant plate is connected to the lower surface of the trigger plate near the feed inlet; The wear-resistant plate is an arc-shaped plate that protrudes into the feed inlet.

7. The impact crusher as described in any one of claims 1 to 6, characterized in that, The impact crusher also includes a plurality of first rubber plates and a plurality of second rubber plates. The ends of the plurality of first rubber plates and the plurality of second rubber plates are fixed to the cover plate. The plurality of first rubber plates and the plurality of second rubber plates are disposed in the feed inlet, and the first rubber plates and the second rubber plates are arranged in two staggered rows.

8. The impact crusher as described in claim 7, characterized in that, The cover plate is provided with multiple through holes, which are arranged sequentially at intervals along the width direction of the feed inlet. A support rod is connected to the cover plate and is positioned above each of the through holes. The impact crusher also includes multiple chains, each of which is disposed in the feed inlet. The end of each chain passes through each of the through holes and is connected to the support rod. Each chain is disposed adjacent to each of the first rubber plates or each of the second rubber plates.

9. The impact crusher as described in any one of claims 1 to 6, characterized in that, The housing has a first support platform and a second support platform on opposite sides. The driving mechanism includes a first driver and a second driver. One end of the first driver is connected to the first support platform, and the other end of the first driver is connected to the cover plate. One end of the second driver is connected to the second support platform, and the other end of the second driver is connected to the cover plate; and / or, The first support platform is provided with a first support, the second support platform is provided with a second support, and the cover plate is connected with a third support and a fourth support. One end of the first driver is hinged to the first support, the other end of the first driver is hinged to the third support, one end of the second driver is hinged to the second support, and the other end of the second driver is hinged to the fourth support.

10. The impact crusher as described in any one of claims 1 to 6, characterized in that, The triggering mechanism includes a vision sensor configured to visually observe the material fed into the feed inlet; when the vision sensor observes that the size of the material to be crushed is larger than the size of the feed inlet, it issues a trigger signal.

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