An impact-resistant crusher tooth plate

Abstract

This application relates to the field of crusher technology, specifically disclosing an impact-resistant crusher toothed plate, which includes a toothed plate body, toothed racks, a buffer mechanism, and side baffles. A locking groove is formed along the length of one side of the toothed plate body, and multiple locking grooves are spaced apart along the width of the toothed plate body. The width of the groove opening is smaller than the width of the groove bottom. The crusher includes a first buffer plate, a second buffer plate, and an elastic element. The first buffer plate is located at the bottom of the locking grooves, the second buffer plate is located on the first buffer plate, and the elastic element is located between the first and second buffer plates. The bottom of the toothed rack is connected to the second buffer plate via a connecting assembly, and the top of the toothed rack has a protrusion extending beyond the toothed plate body. The side baffles are connected to both ends of the toothed plate body along its length. This application effectively improves the problems of easily deformed toothed plates, poor impact resistance, and the need for frequent toothed plate replacements during long-term use, which affects crushing efficiency.

Description

Technical Field

[0001] This application relates to the field of crusher technology, and in particular to an impact-resistant crusher tooth plate. Background Technology

[0002] Jaw crushers, also known as jaw breakers or tiger's mouth crushers, are crushing machines that use a crushing chamber composed of two jaw plates, a moving jaw and a stationary jaw, to crush materials by mimicking the movement of an animal's jaws. Jaw crushers are widely used in mining, metallurgy, building materials, highway, railway, water conservancy, and chemical industries for crushing various ores and large materials.

[0003] Regarding the aforementioned technologies, larger pieces of material fall directly onto the moving and stationary jaw plates during feeding. The material's weight makes it easier for the teeth of the jaw plates to deform due to the instantaneous impact. Furthermore, the high-frequency collision between the jaw plates and the material during the crushing process also easily causes deformation of the jaw plates and teeth, resulting in poor impact resistance. This necessitates frequent replacement of the jaw plates during long-term use, thus affecting crushing efficiency. Utility Model Content

[0004] To address the issues of easily deforming the teeth of crusher plates due to instantaneous impact when feeding heavy materials, and the high-frequency collisions between the crusher plates and materials during the crushing process, resulting in poor impact resistance and the need for frequent replacement of the crusher plates during long-term use, thus affecting crushing efficiency, this application provides an impact-resistant crusher tooth plate.

[0005] The impact-resistant crusher tooth plate provided in this application adopts the following technical solution:

[0006] An impact-resistant crusher toothed plate includes a toothed plate body, a toothed rack, a buffer mechanism, and side baffles. The toothed plate body has a locking groove along its length on one side, and multiple locking grooves are spaced apart along the width of the toothed plate body. The width of the groove opening is smaller than the width of the groove bottom. The buffer mechanism is disposed within the locking groove and includes a first buffer plate, a second buffer plate, and an elastic element. The first buffer plate is disposed at the bottom of the locking groove, the second buffer plate is disposed on the first buffer plate, and the elastic element is disposed between the first and second buffer plates. The bottom of the toothed rack is connected to the second buffer plate via a connecting assembly, and the top of the toothed rack has a protrusion extending beyond the toothed plate body. The side baffles are connected to both ends of the toothed plate body along its length.

[0007] By adopting the above technical solution, when the crusher is working, the material impacts the protrusions on the top of the toothed rack, and the impact force is transmitted to the toothed rack. The toothed rack is connected to the second buffer plate through the connecting assembly, thereby transmitting the force to the second buffer plate. The second buffer plate compresses the elastic element under force, and the elastic element deforms to absorb part of the impact force, playing a buffering role, thereby improving the impact resistance of the toothed rack and its protrusions. Moreover, if the protrusions wear out after long-term use, it is only necessary to disassemble the toothed rack and replace the worn protrusions. This improves the problem in the existing technology that the toothed rack teeth are easily deformed, have poor impact resistance, and require frequent replacement of the toothed rack during long-term use, which affects the crushing efficiency.

[0008] Optionally, the second buffer plate is provided with a push rod, the end of the push rod is provided with a piston, the first buffer plate is provided with a fixed cylinder, the piston is slidably locked in the fixed cylinder, the fixed cylinder is provided with hydraulic oil, the fixed cylinder has an oil-passing inner cavity in its peripheral wall, and the fixed cylinder has a plurality of oil outlet holes connected to the oil-passing inner cavity in its inner wall.

[0009] By adopting the above technical solution, when the toothed rack is impacted, the push rod pushes the piston to slide inside the fixed cylinder. The front side of the piston squeezes the hydraulic oil in the fixed cylinder. Since the hydraulic oil is incompressible and there are multiple oil outlet holes on the inner wall of the fixed cylinder that connect to the oil cavity, the hydraulic oil will flow into the oil cavity through the oil outlet holes and then into the fixed cylinder behind the piston. During this process, the flow of hydraulic oil generates resistance, thereby converting the impact energy into the flow kinetic energy of the hydraulic oil and the heat energy generated by the instantaneous pressure of the hydraulic oil, achieving a buffering effect, effectively reducing the impact force on the toothed rack, and protecting the crusher toothed plate.

[0010] Optionally, a copper rod is inserted into the first buffer plate, and the copper rod is connected to the fixed cylinder.

[0011] By adopting the above technical solution, the copper rod has good thermal conductivity, which can conduct away the heat generated by the piston movement of the hydraulic oil in the fixed cylinder, thus avoiding the hydraulic oil temperature from being too high and affecting the buffering effect.

[0012] Optionally, a weight-reducing groove is provided on the side of the toothed plate body away from the toothed rack, and the copper rod passes through the weight-reducing groove of the toothed plate body.

[0013] By adopting the above technical solution, a weight-reducing groove is opened on the side of the tooth plate body away from the tooth rack, which can reduce the overall weight of the tooth plate; the copper rod is inserted into the weight-reducing groove, which can further dissipate heat through the tooth plate body.

[0014] Optionally, multiple toothed racks are provided on the second buffer plate, with their ends abutting each other. The connecting assembly includes a sliding block, a return spring, and a driving component. A first slot is provided at the bottom of the toothed rack, and the sliding block is slidably inserted into the first slot. One end of the return spring is connected to the sliding block, and the other end is connected to the inner wall of the first slot. The return spring tends to retract the sliding block into the first slot. Second slots are provided on the second buffer plate at intervals along its length. The driving component is provided on the toothed rack and is used to drive the sliding block to insert from the first slot into the second slot.

[0015] By adopting the above technical solution, when the toothed rack needs to be installed, the driving component is operated, and the driving component drives the sliding block to overcome the elastic force of the return spring, so that the sliding block slides out of the first slot and inserts into the second slot, thereby fixing the toothed rack on the second buffer plate; when the toothed rack needs to be removed, the operation of the driving component is canceled, the return spring tends to cause the sliding block to retract into the first slot, and the sliding block slides out of the second slot, realizing the separation of the toothed rack from the second buffer plate, which facilitates the installation and removal of the toothed rack.

[0016] Optionally, the driving component includes a driving rod that is movably inserted into the toothed rack. One end of the sliding block inserted into the first slot has a beveled surface, and the end of the driving rod abuts against the beveled surface.

[0017] By adopting the above technical solution, when it is necessary to install the toothed rack on the second buffer plate, first place one toothed rack on one end of the second buffer plate, then place the second toothed rack on one side of the first toothed rack, and push the second toothed rack close to the first toothed rack. The side wall of the second toothed rack presses against the drive rod. Since the end of the drive rod abuts against the beveled surface of the sliding block inserted into the first slot, the push of the drive rod will cause the sliding block to overcome the elastic force of the return spring, slide out of the first slot and insert into the second slot, thus realizing the connection between the first toothed rack and the second buffer plate. Then, repeating the above operation can realize the connection between all the toothed racks and the second buffer plate. The installation and removal of the toothed racks are relatively convenient.

[0018] Optionally, the bump is generally wavy.

[0019] By adopting the above technical solution, the wavy protrusions enable the material to generate transverse shear stress as it moves along the length of the toothed plate body, thereby improving the crushing efficiency of the material.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The first buffer plate, the second buffer plate, and the elastic element can buffer the toothed rack and its protrusions, thereby improving the impact resistance of the toothed rack and its protrusions. If the protrusions wear out after long-term use, it is only necessary to disassemble the toothed rack and replace the worn protrusions. This improves the problem in the prior art that the toothed plates are easily deformed, have poor impact resistance, and require frequent replacement of the toothed plates during long-term use, which affects the crushing efficiency.

[0022] 2. The arrangement of the push rod, piston, and fixed cylinder allows the push rod to push the piston to slide inside the fixed cylinder when the toothed rack is impacted, converting the impact energy into the kinetic energy of the hydraulic oil flow and the heat energy generated by the instantaneous pressure of the hydraulic oil, thus achieving a buffering effect, effectively reducing the impact force on the toothed rack, and protecting the crusher toothed plate.

[0023] 3. The coordinated arrangement of the sliding block, return spring, and drive rod allows the sliding block to overcome the spring force of the return spring and slide out of the first slot and into the second slot when the drive rod is pressed, thereby realizing the connection between the toothed rack and the second buffer plate. The structure is simple and the installation and removal of the toothed rack are relatively convenient. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0027] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure along line BB.

[0028] Reference numerals: 1. Toothed plate body; 11. Engaging groove; 12. Weight reduction groove; 2. Toothed rack; 21. Protrusion; 22. Sliding block; 221. Beveled surface; 23. Return spring; 24. First slot; 25. Drive rod; 3. Side baffle; 4. First buffer plate; 41. Fixed cylinder; 42. Oil passage cavity; 43. Oil outlet; 44. Copper rod; 5. Second buffer plate; 51. Push rod; 52. Piston; 53. Second slot; 6. Elastic element. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail.

[0030] This application discloses an impact-resistant crusher tooth plate. (Refer to...) Figure 1-2 The impact-resistant crusher tooth plate includes a tooth plate body 1, toothed teeth 2, a buffer mechanism, and side baffles 3. A locking groove 11 is formed along the length of one side of the tooth plate body 1. Multiple locking grooves 11 are spaced apart along the width of the tooth plate body 1. The width of the groove opening is smaller than the width of the groove bottom. In this application, the locking groove 11 is a dovetail groove. The tooth plate body 1 is made of a high-strength metal material, such as manganese steel, which has good wear resistance and strength and can withstand large impact forces.

[0031] The buffer mechanism is set in the engaging groove 11. The buffer mechanism includes a first buffer plate 4, a second buffer plate 5, and an elastic element 6. The first buffer plate 4 is engaged at the bottom of the engaging groove 11, and the second buffer plate 5 is set in the engaging groove 11 above the first buffer plate 4. The elastic element 6 is set between the first buffer plate 4 and the second buffer plate 5, and the elastic element 6 is a compression spring. The first buffer plate 4 and the second buffer plate 5 can be made of steel plate, which has a certain hardness and strength. The bottom of the toothed rack 2 is connected to the second buffer plate 5 through a connecting assembly, and multiple toothed racks 2 are arranged end to end along the length of the second buffer plate 5. The toothed rack 2 can be made of wear-resistant materials such as alloy steel to improve its wear resistance. The top of the toothed rack 2 has an integrally formed protrusion 21 protruding from the toothed plate body 1. The function of the protrusion 21 is to directly contact the material during the operation of the crusher, and to squeeze and crush the material. The protrusion 21 is generally wavy. When crushing materials, the wavy protrusion 21 can generate transverse shear stress on the materials as they move along the length of the toothed plate body 1, thereby improving the crushing efficiency. The side baffles 3 are respectively bolted and fixed to both ends of the toothed plate body 1 along the length of the toothed plate body 1, and are used to restrict the movement of the first buffer plate 4 and the second buffer plate 5 along the length of the toothed plate body 1.

[0032] When the crusher is working, the material impacts the protrusion 21 on the top of the toothed rack 2. The impact force is transmitted to the toothed rack 2, which is connected to the second buffer plate 5 via a connecting assembly, thus transferring the force to the second buffer plate 5. The second buffer plate 5 compresses the elastic element 6 under force, and the elastic element 6 deforms to absorb the impact force, playing a buffering role and reducing the impact force on the toothed plate body 1 and the toothed rack 2, thereby extending the service life of the toothed plate and improving the working efficiency of the crusher. Moreover, if the protrusion 21 wears after long-term use, it is only necessary to disassemble the toothed rack 2 and replace the worn protrusion 21. This improves the problem in the existing technology where the toothed plates are easily deformed, have poor impact resistance, and require frequent replacement of the toothed plates during long-term use, which affects the crushing efficiency.

[0033] Reference Figure 2To further improve the buffering effect of the buffer mechanism, a push rod 51 is fixedly connected to the side of the second buffer plate 5 near the first buffer plate 4. A piston 52 is provided at the end of the push rod 51. A fixed cylinder 41 is fixedly connected to the side of the first buffer plate 4 near the second buffer plate 5. The piston 52 is slidably engaged within the fixed cylinder 41, which is filled with hydraulic oil. An oil-passing cavity 42 is formed within the peripheral wall of the fixed cylinder 41, and multiple oil outlet holes 43 connecting to the oil-passing cavity 42 are formed along the axial direction of the fixed cylinder 41. The push rod 51 and piston 52 can be made of high-strength metal materials to ensure they are not easily damaged during operation. The fixed cylinder 41 is also made of metal, and the hydraulic oil inside can be selected according to actual needs. When the toothed rack 2 is impacted, the second buffer plate 5 moves downward, causing the push rod 51 and piston 52 to slide inside the fixed cylinder 41. The hydraulic oil is squeezed, and the hydraulic oil at the bottom of the piston 52 flows into the oil passage cavity 42 through the oil outlet 43, and then flows into the fixed cylinder 41 at the top of the piston 52 through the oil outlet 43. The flow and damping effect of the hydraulic oil further absorb the impact force and enhance the buffering effect.

[0034] Because hydraulic oil generates heat when subjected to the instantaneous pressure of piston 52, a copper rod 44 is inserted into the first buffer plate 4. The copper rod 44 is connected to the fixed cylinder 41. A weight-reducing groove 12 is opened on the side of the toothed plate body 1 away from the toothed rack 2, and the copper rod 44 passes through the weight-reducing groove 12 of the toothed plate body 1. The copper rod 44 has good thermal conductivity, which can conduct away the heat generated by the movement of piston 52 in the hydraulic oil in the fixed cylinder 41, avoiding the hydraulic oil temperature from being too high and affecting the buffering effect. In addition, during the operation of the crusher, it can conduct away the heat generated by the toothed plate in a timely manner, reducing the temperature of the toothed plate and preventing the toothed plate material performance from deteriorating due to excessive temperature. The opening of the weight-reducing groove 12 can reduce the weight of the toothed plate, reduce the load on the crusher, and improve the operating efficiency of the crusher.

[0035] For example, refer to Figure 3The connecting assembly includes a sliding block 22, a return spring 23, and a driving component. A first slot 24 is provided at the bottom of the toothed rack 2. The sliding block 22 is slidably inserted into the first slot 24. One end of the return spring 23 is connected to the sliding block 22, and the other end is connected to the inner wall of the first slot 24. The return spring 23 tends to retract the sliding block 22 into the first slot 24. Second slots 53 are spaced apart along the length of the second buffer plate 5. The driving component is located on the toothed rack 2 and is used to drive the sliding block 22 from the first slot 24 into the second slot 53. The sliding block 22 can be made of a metal block, and its surface needs to be smoothed to reduce friction when sliding within the first slot 24. When the toothed rack 2 needs to be installed, the driving component is operated. The driving component drives the sliding block 22 to overcome the elastic force of the return spring 23, so that the sliding block 22 slides out from the first slot 24 and inserts into the second slot 53, thereby fixing the toothed rack 2 onto the second buffer plate 5. When the toothed rack 2 needs to be removed, the operation of the driving component is canceled. The return spring 23 tends to cause the sliding block 22 to retract into the first slot 24, and the sliding block 22 slides out from the second slot 53, realizing the separation of the toothed rack 2 from the second buffer plate 5, which facilitates the installation and removal of the toothed rack 2.

[0036] Specifically, the driving component includes a driving rod 25, which is movably inserted into the toothed rack 2 along the length of the second buffer plate 5. One end of the sliding block 22, which is inserted into the first slot 24, has a chamfered surface 221. The end of the driving rod 25 extends into the first slot 24 and abuts against the chamfered surface 221. The driving rod 25 can be made of metal. When the driving rod 25 is pushed, its end contacts the chamfered surface 221. Due to the action of the chamfered surface 221, the pushing force of the driving rod 25 is converted into a force that moves the sliding block 22 outward, thereby inserting the sliding block 22 into the second slot 53. The specific installation steps for each toothed rod 2 are as follows: First, fix one side baffle 3 to one end of the toothed plate body 1. Then, place one toothed rod 2 on one end of the second buffer plate 5 and press it against the side baffle 3. Next, place the second toothed rod 2 on one side of the first toothed rod 2 and push the second toothed rod 2 closer to the first toothed rod 2. The side wall of the second toothed rod 2 presses against the drive rod 25. Since the end of the drive rod 25 abuts against the inclined surface 221 of the sliding block 22 inserted into the first slot 24, the push of the drive rod 25 will cause the sliding block 22 to overcome the elastic force of the return spring 23, slide out of the first slot 24 and insert into the second slot 53, thus realizing the connection between the first toothed rod 2 and the second buffer plate 5. Then, repeat the above operation to realize the connection between all the toothed rods 2 and the second buffer plate 5. Finally, bolt and fix the other side baffle 3. The installation and removal of the toothed rod 2 are relatively convenient.

[0037] The implementation principle of this embodiment is as follows: The impact-resistant crusher tooth plate incorporates a buffer mechanism on its body 1. When the toothed bar 2 is impacted by material, the elastic element 6 and hydraulic buffer structure of the buffer mechanism absorb the impact force, reducing damage to the toothed bar 2 and its protrusions, extending the service life of the tooth plate, and improving the problem of easily deformed toothed bars and poor impact resistance in existing technologies. Simultaneously, the unique connecting components make the installation and disassembly of the toothed bar 2 more convenient. If the protrusions 21 wear after prolonged use, only the toothed bar 2 needs to be disassembled to replace the worn protrusions 21, improving the problem of frequent tooth plate replacements during long-term use in existing technologies, which affects crushing efficiency.

[0038] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An impact resistant breaker tooth plate characterized by: The device includes a toothed plate body, a toothed rack, a buffer mechanism, and side baffles. The toothed plate body has a locking groove along its length on one side, and multiple locking grooves are spaced apart along the width of the toothed plate body. The width of the groove opening is smaller than the width of the groove bottom. The buffer mechanism is located within the locking groove and includes a first buffer plate, a second buffer plate, and an elastic element. The first buffer plate is located at the bottom of the locking groove, the second buffer plate is located on the first buffer plate, and the elastic element is located between the first and second buffer plates. The bottom of the toothed rack is connected to the second buffer plate via a connecting assembly, and the top of the toothed rack has a protrusion extending beyond the toothed plate body. The side baffles are connected to both ends of the toothed plate body along its length.

2. An impact resistant breaker tooth plate according to claim 1, characterized in that: The second buffer plate is provided with a push rod, and the end of the push rod is provided with a piston. The first buffer plate is provided with a fixed cylinder, and the piston is slidably locked inside the fixed cylinder. The fixed cylinder is provided with hydraulic oil, and an oil passage cavity is opened in the peripheral wall of the fixed cylinder. Multiple oil outlet holes connected to the oil passage cavity are opened on the inner wall of the fixed cylinder.

3. An impact resistant breaker tooth plate according to claim 2, characterized in that: A copper rod is inserted into the first buffer plate, and the copper rod is connected to the fixed cylinder.

4. An impact resistant breaker tooth plate according to claim 3, wherein: The tooth plate body has a weight-reducing groove on the side opposite to the toothed tooth rack, and the copper rod passes through the weight-reducing groove of the tooth plate body.

5. The impact-resistant crusher toothed plate according to claim 1, characterized in that: Multiple toothed racks are provided on the second buffer plate, with their ends abutting each other. The connecting assembly includes a sliding block, a return spring, and a driving component. A first slot is provided at the bottom of the toothed rack, and the sliding block is slidably inserted into the first slot. One end of the return spring is connected to the sliding block, and the other end is connected to the inner wall of the first slot. The return spring tends to retract the sliding block into the first slot. Second slots are provided on the second buffer plate at intervals along its length. The driving component is provided on the toothed rack and is used to drive the sliding block to insert from the first slot into the second slot.

6. The impact-resistant crusher toothed plate according to claim 5, characterized in that: The driving component includes a driving rod that is movably inserted into the toothed rack. One end of the sliding block that is inserted into the first slot has a beveled surface, and the end of the driving rod abuts against the beveled surface.

7. The impact-resistant crusher toothed plate according to claim 1, characterized in that: The bump is wavy in shape.

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