Crusher

Abstract

The utility model discloses a crusher, which relates to the technical field of crushing and comprises a crushing component and a driving device, the crushing assembly is provided with a crushing cavity, the crushing cavity is used for being arranged in the water tank, the crushing cavity is in sealed connection with the water tank through a sealing assembly, and a crushing device is arranged in the crushing cavity; and the driving device is used for driving the crushing device to execute the crushing action, the driving device is arranged on the outer side of the water tank, the driving device comprises bearing boxes arranged at the two ends of the crushing device, a reserved space is formed between the bearing boxes and the crushing cavity, and a water collecting tank is arranged below the reserved space. According to the crusher provided by the utility model, the crushing cavity is hermetically connected with the water tank through the sealing assembly between the crushing cavity and the water tank. Meanwhile, the reserved space is formed between the bearing box and the crushing cavity, and the water collecting tank is arranged below the reserved space, so that the sealing performance of the crusher is guaranteed, and the risk that the crusher breaks down is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing, and more specifically, to a crusher. Background Art

[0002] With the development of new energy vehicles, some power batteries will reach the end of their life cycle and be recycled. Among power batteries, lithium batteries are widely used in various fields due to their advantages such as high energy density, light weight, fast charging, long cycle life and strong applicability. Especially for new energy vehicles, they can improve the charging efficiency of new energy vehicles, and because of their low self-discharge rate, new energy vehicles can still ensure the driving power of new energy vehicles when they are not used for a long time. However, when lithium batteries are improperly used or damaged, they may cause safety risks, such as overheating, leakage or explosion, which makes it difficult to recycle lithium batteries.

[0003] In the prior art, in order to reduce the risk of combustion or explosion of lithium batteries during crushing and recycling, there are generally two ways to crush lithium batteries. One is to crush the lithium batteries in an inert gas environment, such as a nitrogen environment, to avoid combustion or explosion of the lithium batteries during crushing. However, this method has a high crushing cost and strict crushing environment requirements, and is not suitable for small enterprises. The other is to crush the lithium batteries in water, which has a low crushing cost and high applicability. However, this method requires that the crusher and the water tank are sealed to crush the lithium batteries to prevent water from entering the bearing box of the crusher and causing the crusher to malfunction.

[0004] Therefore, how to ensure the sealing of the crusher and reduce the risk of failure of the crusher has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the utility model is to provide a crusher to ensure the sealing between the crusher and the water tank and reduce the risk of failure of the crusher.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crusher, comprising:

[0008] A crushing assembly, wherein the crushing assembly has a crushing cavity, the crushing cavity is used to be arranged in a water tank, and the crushing cavity is sealed and connected to the water tank through a sealing assembly, and a crushing device is arranged in the crushing cavity;

[0009] A driving device is used to drive the crushing device to perform a crushing action, and the driving device is arranged on the outside of the water tank. The driving device includes a bearing box arranged at both ends of the crushing device, and a reserved space is provided between the bearing box and the crushing cavity, and a water collecting tank is provided below the reserved space.

[0010] Optionally, in the above crusher, the crushing assembly comprises a square box and partitions located at both ends of the square box, the square box and the partitions are arranged to form the crushing cavity, and the square box is used to be detachably connected to the water tank to fix the crushing assembly;

[0011] The crushing device includes a rotating shaft passing through the partition and a cutter arranged on the rotating shaft. Both ends of the rotating shaft are provided with installation kits, the installation kits are arranged between the rotating shaft and the partition and rotatably cooperate with the partition. Both ends of the rotating shaft are respectively connected to the bearing box.

[0012] Optionally, in the above crusher, there is a preset distance between the bearing box and the partition plate to form a reserved space between the bearing box and the crushing cavity.

[0013] Optionally, in the above crusher, the sealing assembly includes a first seal and a second seal, the first seal is used to be arranged between the partition and the side wall of the water tank, and the second seal is used to be arranged between the partition and the bearing box.

[0014] Optionally, in the above crusher, the first sealing member includes a first mounting groove opened on a side surface of the partition plate and a first O-ring located in the first mounting groove.

[0015] Optionally, in the above-mentioned crusher, the second seal includes a lip seal assembly arranged on the outside of the installation kit and a labyrinth seal located at the end of the installation kit, the labyrinth seal is located between the installation kit and the bearing box, and the labyrinth seal is used to communicate with an oil inlet channel arranged on the bearing box.

[0016] Optionally, in the above crusher, the lip seal assembly comprises a lip seal ring sleeved on the outside of the installation kit and a compression sleeve for fixing the lip seal ring, and the inner wall of the compression sleeve is provided with a second installation groove for installing the lip seal ring;

[0017] The axial end surface of the compression sleeve is tightly attached to the axial end surface of the partition, and a third mounting groove is provided on the axial end surface of the partition, and the third mounting groove is used to install a second O-ring to axially seal the partition and the compression sleeve.

[0018] Optionally, in the above crusher, the compression sleeve is a split structure, and the compression sleeve includes a first sleeve body and a second sleeve body, and the first sleeve body and the second sleeve body are detachably connected.

[0019] Optionally, in the above crusher, the lip seal rings are multiple and closely arranged along the axial direction of the installation kit, and each of the lip seal rings is provided with an opening for easy disassembly and assembly.

[0020] Optionally, in the above-mentioned crusher, the water collecting trough is used to be arranged on the side wall of the water tank, and the cross-sectional shape of the water collecting trough is L-shaped, the water collecting trough and the side wall of the water tank are arranged to form a water collecting chamber, and a drainage hole for connecting to a drain pipe is arranged on the bottom wall of the water collecting chamber, and the bottom wall of the water collecting chamber is inclined to divert the water in the water collecting chamber to the drainage hole.

[0021] The crusher provided by the utility model performs crushing action in water by setting the crushing chamber of the crushing assembly in a water tank, and setting a crushing device in the crushing chamber, and driving the crushing device through a driving device located outside the water tank. At the same time, the crushing chamber and the water tank are sealed and connected by a sealing assembly to prevent the water in the water tank from flowing out into the bearing box of the driving device, causing the driving device to fail. In addition, there is a reserved space between the bearing box and the crushing chamber to prevent water from directly flowing into the bearing box after the sealing assembly is damaged, and a water collecting tank is provided below the reserved space. When the sealing assembly is damaged, the water will flow out of the water tank and fall directly into the water collecting tank under the action of gravity, which can avoid damage to other equipment components. At the same time, it can be known from the water in the water collecting tank that the sealing assembly is damaged and a new sealing assembly needs to be replaced, thereby ensuring the normal operation of the crusher.

[0022] Compared with the prior art, the crusher provided by the utility model is sealed and connected by a sealing assembly between the crushing chamber and the water tank to prevent the water in the water tank from flowing out and entering the bearing box of the driving device, causing the driving device to fail. At the same time, there is a reserved space between the bearing box and the crushing chamber to prevent water from directly flowing into the bearing box after the sealing assembly is damaged. In addition, by setting a water collection tank below the reserved space, it can be prevented that water flows out and damages other equipment components, and at the same time, it can remind the operator to replace the new sealing assembly, which not only ensures the sealing of the crusher, but also reduces the risk of failure of the crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a crusher provided in an embodiment of the utility model;

[0025] Figure 2 A partial enlarged view of a crusher provided in an embodiment of the utility model;

[0026] Figure 3 A cross-sectional view of a crusher provided in an embodiment of the utility model;

[0027] Figure 4 The right side view of the crusher provided in the embodiment of the utility model.

[0028] Among them, 100 is a crushing assembly, 101 is a crushing chamber, 102 is a crushing device, 1021 is a rotating shaft, 1022 is a cutter, 1023 is an installation kit, 103 is a reserved space, 104 is a square box, 105 is a partition, 106 is a first sealing member, 1061 is a first mounting groove, 1062 is a first O-type sealing ring, 107 is a second sealing member, 1071 is a lip sealing assembly, 1072 is a lip sealing ring, 1073 is a compression sleeve, 1074 is a second mounting groove, 1075 is a labyrinth seal, 1076 is a third mounting groove, and 1077 is a second O-type sealing ring;

[0029] 200 is a driving device, 201 is a bearing box, and 2011 is an oil inlet channel;

[0030] 300 is a water tank, 301 is a water collecting tank, and 3011 is a bottom wall. DETAILED DESCRIPTION

[0031] The core of the utility model is to provide a crusher to ensure the sealing between the crusher and the water tank and reduce the risk of failure of the crusher.

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] like Figures 1 to 4 As shown, the embodiment of the utility model discloses a crusher, including a crushing assembly 100 and a driving device 200 .

[0034] It should be noted that the recycling of waste lithium batteries is an important environmental protection and resource recycling process, which mainly includes a variety of methods such as physical methods, chemical methods and biological methods. Among them, the physical method usually includes steps such as crushing and sorting, which are used to separate the valuable metals and other components in the battery. It has the characteristics of simple operation, low cost and wide applicability. It is one of the commonly used methods for recycling waste lithium batteries. In addition, since lithium batteries may contain flammable and corrosive chemicals, the crushing process needs to be carried out in a closed and controlled environment, and needs to be carried out in an oxygen-free or oxygen-deficient environment to prevent the lithium and other materials in the battery from reacting with oxygen in the air, causing thermal runaway or other dangerous chemical reactions.

[0035] Generally, there are two ways to crush lithium batteries. One is to crush lithium batteries in an inert gas environment, such as a nitrogen environment, to avoid combustion or explosion of lithium batteries during crushing. The nitrogen environment can effectively reduce the oxygen concentration, thereby reducing the risk of combustion or explosion. Specifically, the waste lithium batteries enter the crusher through the transition bin, and nitrogen is introduced into the transition bin until a nitrogen environment is formed in the bin, ensuring that the battery cells are in an oxygen-free state before entering the crushing chamber. Then, the battery cells are shredded in the crushing chamber. During the crushing process, an air intake pipe and an exhaust pipe are provided in the chamber to ensure that the material crushing and transportation are carried out under the protection of nitrogen to prevent oxygen intervention and the risk of combustion when the electrolyte volatilizes. At the same time, the electrolyte gas and dust generated during the crushing process need to undergo a special treatment process. The gas first passes through a cooling device, the organic solvent solidifies in a condensation tank, and the remaining gas is sprayed with alkali liquid to remove harmful substances. Finally, the incineration equipment is used to ensure that the exhaust gas meets the emission standards. It can be seen that the above method needs to ensure that the entire crushing process is in a nitrogen environment to avoid the risk of oxygen intervention and combustion when the electrolyte volatilizes, which leads to high crushing costs and is not suitable for small enterprises. The other method is to crush the lithium battery in water, which has a lower crushing cost and higher applicability, but this method requires that the crusher and the water tank are sealed to crush the lithium battery to prevent water from entering the crusher's bearing box and causing the crusher to malfunction.

[0036] The crusher disclosed in the embodiment of the utility model is sealed by the sealing assembly between the crushing cavity 101 and the water tank 300 to prevent the water in the water tank 300 from flowing out and entering the bearing box 201 of the driving device 200, causing the driving device 200 to fail. At the same time, there is a reserved space 103 between the bearing box 201 and the crushing cavity 101 to prevent water from directly flowing into the bearing box 201 after the sealing assembly is damaged. In addition, by setting the water collection tank 301 below the reserved space 103, it can be prevented that the water flows out and damages other equipment components, and at the same time, it can remind the operator to replace the new sealing assembly, which not only ensures the sealing performance of the crusher, but also reduces the risk of failure of the crusher.

[0037] Specifically, Figure 1 As shown, the crushing assembly 100 has a crushing cavity 101, and the crushing cavity 101 is arranged in the water tank 300. A crushing device 102 is arranged in the crushing cavity 101, and the crushing device 102 is ensured to be completely immersed in the water tank, so that the crushing process of the waste lithium battery is carried out in the water, thereby reducing the risk of combustion and explosion caused by the increase in temperature of the waste lithium battery when the waste lithium battery is crushed. At the same time, a driving device 200 is arranged outside the water tank 300, and the driving device 200 includes a bearing box 201 arranged at both ends of the crushing device 102, so that the driving device 200 is connected to the crushing device 102 through the bearing box 201, thereby driving the crushing device 102 to perform the crushing action.

[0038] In addition, when the crushing device 102 is crushing in the crushing chamber 101, if the connection between the crushing chamber 101 and the water tank 300 is not sealed tightly, or the seal is not replaced in time, water will flow out from the connection between the crushing chamber 101 and the water tank 300, and enter the driving device 200, causing the crusher to malfunction.

[0039] To reduce the risk of crusher failure, such as Figure 1 and Figure 2 As shown, the crushing chamber 101 and the water tank 300 are sealed and connected by a sealing assembly. At the same time, there is a reserved space 103 between the bearing box 201 and the crushing chamber 101, and a water collecting tank 301 is arranged below the reserved space 103. When the sealing assembly is damaged, water flows out from the connection position between the crushing chamber 101 and the water tank 300. Since there is a reserved space 103 between the bearing box 201 and the crushing chamber 101, the water will not directly flow into the bearing box 201 of the drive device 200, but will fall into the water collecting tank 301 located below the reserved space 103 under the action of gravity, thereby avoiding the failure of the drive device 200. At the same time, the operator can be informed of the information that the sealing assembly is damaged based on the water in the water collecting tank 301, and then the operator can be reminded to replace the new sealing assembly in time to ensure the normal operation of the crusher. In addition, by arranging the water collecting tank 301 below the reserved space 103, it can be avoided that the water flows out and damages other components of the crusher, causing unnecessary economic losses.

[0040] like Figures 2 to 4As shown, in a specific embodiment, the crushing assembly 100 includes a square box 104 and a partition 105 located at both ends of the square box 104, and the square boxes 104 are two oppositely arranged, and the crushing chamber 101 is formed by the square box 104 and the partition 105. Among them, the square box 104 and the partition 105 can be detachably connected by bolts, or can be connected and fixed by welding, and the inner side of the square box 104 and the partition 105 is coated with a corrosion-resistant and rust-resistant protective coating to prevent the electrolyte from corroding the box 104 and the partition 105 when the waste lithium battery is crushed, and at the same time, it can prevent the corrosion of the box 104 and the partition 105 by water when working in water, thereby improving the service life of the crusher. In addition, a detachable connection method is adopted between the square box 104 and the water tank 300 to fix the crushing assembly 100, which is convenient for the disassembly and maintenance of the crusher. Specifically, the square box 104 and the side wall of the water tank 300 can be connected by bolts. In addition, there is a preset distance between the bearing box 201 and the partition 105 to form an open reserved space 103 between the bearing box 201 and the crushing cavity 101. The preset distance can be determined according to the actual installation space of the crusher.

[0041] like Figure 2 and Figure 3As shown, the crushing device 102 includes a rotating shaft 1021 passing through the partition 105 and a cutter 1022 disposed on the rotating shaft 1021. The two ends of the rotating shaft 1021 are provided with mounting kits 1023. The mounting kits 1023 are disposed between the rotating shaft 1021 and the partition 105 and are rotatably matched with the partition 105. The two ends of the rotating shaft 1021 are respectively connected with the bearing box 201. Specifically, a mounting hole for mounting the rotating shaft 1021 is disposed on the partition 105, and the mounting kit 1023 is fixed on the rotating shaft 1021, so that the mounting kit 1023 and the rotating shaft 1021 form an integral structure, so that the mounting kit 1023 is rotatably matched with the mounting hole of the partition 105 under the drive of the rotating shaft 1021. The mounting kits 1023 disposed at both ends of the rotating shaft 1021 can realize the positioning of the rotating shaft 1021, and at the same time, the wear of the rotating shaft 1021 can be reduced, thereby improving the service life of the crushing device 102. In this embodiment, there are two rotating shafts 1021, and the cutter 1022 includes a plurality of blades arranged along the axial direction of the rotating shaft 1021. For ease of understanding, the two rotating shafts 1021 are defined as the first rotating shaft and the second rotating shaft, respectively, and the first rotating shaft and the second rotating shaft can be arranged in parallel in the crushing chamber 101, but are not limited to being arranged in parallel. At the same time, the blades on the first rotating shaft and the blades on the second rotating shaft are arranged alternately along the axial direction of the rotating shaft 1021. When the first rotating shaft and the second rotating shaft rotate inward at the same time, a bite force is formed between the blades of the first rotating shaft and the blades of the second rotating shaft, thereby achieving the effect of crushing the waste lithium battery. In addition, a motor connected to the bearing box 201 at the head end of the rotating shaft 1021 is also provided at the head end of the rotating shaft 1021 to drive the first rotating shaft and the second rotating shaft to rotate. It should be noted that the connection between the motor and the bearing box 201 at the head end of the two rotating shafts 1021 can adopt a traditional transmission connection method. Of course, two motors can also be connected to the bearing boxes 201 at the head end of the two rotating shafts 1021 respectively, which will not be repeated in this article.

[0042] Furthermore, if Figure 2 and Figure 4 As shown, in a specific embodiment, the water collecting tank 301 can be arranged on the side wall of the water tank 300, and the water collecting tank 301 is directly opposite to the reserved space 103 between the bearing box 201 and the crushing cavity 101, so as to ensure that the water flows out of the water tank 300 and directly falls into the water collecting tank 301. Of course, the water collecting tank 301 can also be arranged on the crusher, that is, the water collecting tank 301 is fixed to the outside of the partition 105 of the crushing assembly 100, and ensure that the water collecting tank 301 is directly opposite to the reserved space 103 between the bearing box 201 and the crushing cavity 101. In this embodiment, as Figure 2As shown, the cross-sectional shape of the water collecting tank 301 is L-shaped, and the water collecting chamber is formed by the water collecting tank 301 and the side wall of the water tank 300. The bottom wall 3011 of the water collecting chamber is provided with a drain hole connected to the drain pipe, and the drain hole is connected to the drain pipe to discharge the water in the water collecting chamber to the wastewater treatment equipment through the drain pipe, so as to avoid the water directly falling and damaging other components of the crusher. At the same time, the bottom wall 3011 of the water collecting chamber is inclined, so that the water in the water collecting chamber can be diverted to the drain hole, so as to avoid the wastewater from accumulating in the water collecting tank 301 and failing to be processed in time, resulting in the volatilization of harmful gases. In addition, a gravity sensor can be provided on the water collecting tank 301, and an alarm device can be installed at the same time, and the gravity sensor and the alarm device are linked. When water falls into the water collecting tank 301, the gravity of the water collecting tank 301 changes, and the alarm device is triggered to emit a sound to remind the operator that the sealing component is damaged and needs to be replaced in time. Of course, a pressure sensor can also be provided on the water collecting tank 301 so that the pressure sensor and the alarm device are linked. The specific implementation method is similar to the gravity sensor and will not be described in detail herein. It should be noted that the length of the water collecting tank 301 can be equal to the distance between the two square boxes 104, and of course it can also be greater than the distance between the two square boxes 104 to ensure that water falls directly into the water collecting chamber. At the same time, end plates are provided at both ends of the water collecting tank 301 so that the water collecting chamber is a semi-enclosed space with an upper opening to prevent water from flowing out of the water collecting tank 301. The cross-sectional shape of the water collecting tank 301 can also be U-shaped so that the water collecting tank 301 is directly fixed to the outside of the partition 105 of the crushing assembly 100, and there is no need to locate the installation position of the water collecting tank 301, thereby improving the installation efficiency of the crusher.

[0043] Furthermore, if Figure 2 As shown, in order to ensure the sealing between the crushing cavity 101 and the water tank 300, the sealing assembly includes a first sealing member 106 and a second sealing member 107. The first sealing member 106 is arranged between the partition 105 and the side wall of the water tank 300 to seal the connection position between the edge of the crushing cavity 101 and the water tank 300, and prevent water from flowing out from the connection position between the crushing cavity 101 and the side wall of the water tank 300. The second sealing member 107 is arranged between the partition 105 and the bearing box 201 to axially seal between the crushing cavity 101 and the water tank 300, and prevent water from flowing out from the connection position between the partition 105 and the rotating shaft 1021 and entering the bearing box 201.

[0044] like Figure 2As shown, in a specific embodiment, the first sealing member 106 includes a first mounting groove 1061 opened on the side of the partition 105 and a first O-type sealing ring 1062 located in the first mounting groove 1061. During installation, the square box 104 is connected to the side wall of the water tank 300 by bolts, and at the same time, the side wall of the water tank 300 squeezes the first O-type sealing ring 1062 located in the first mounting groove 1061 of the partition 105, thereby achieving a sealing effect at the connection position between the edge of the partition 105 and the side wall of the water tank 300. The second seal 107 includes a lip seal assembly 1071 arranged on the outside of the installation kit 1023 and a labyrinth seal 1075 located at the end of the installation kit 1023. The labyrinth seal 1075 is located between the installation kit 1023 and the bearing box 201, and the labyrinth seal 1075 is connected to the oil inlet channel 2011 arranged on the bearing box 201, so that grease can be injected into the cavity of the labyrinth seal 1075 through the oil inlet channel 2011, thereby improving the sealing effect of the labyrinth seal 1075.

[0045] Specifically, Figure 2 As shown, the lip seal assembly 1071 includes a lip seal ring 1072 sleeved on the outside of the installation kit 1023 and a compression sleeve 1073 for fixing the lip seal ring 1072. The inner wall of the compression sleeve 1073 is provided with a second installation groove 1074 for installing the lip seal ring 1072. The lip edge of the lip seal ring 1072 is deformed to achieve the axial sealing effect between the crushing chamber 101 and the water tank 300, preventing water from flowing out from the connection position between the partition 105 and the rotating shaft 1021 and entering the bearing box 201. At the same time, when the lip edge of the lip seal ring 1072 is worn, the lip seal ring 1072 has an automatic compensation capability to ensure the sealing performance. In addition, the axial end face of the compression sleeve 1073 is in close contact with the axial end face of the partition 105, and a third mounting groove 1076 is provided on the axial end face of the partition 105, and a second O-ring 1077 is installed in the third mounting groove 1076 to axially seal the close end faces of the partition 105 and the compression sleeve 1073. It should be noted that the lip seal ring 1072 is sleeved on the outside of the installation kit 1023 and can rotate relative to the installation kit 1023, so as to ensure the sealing performance without affecting the operation of the driving device 200 driving the crushing device 102.

[0046] Furthermore, if Figure 2As shown, in order to facilitate the installation of the compression sleeve 1073 and the lip seal ring 1072, the compression sleeve 1073 adopts a split structure, and the compression sleeve 1073 includes a first sleeve body and a second sleeve body, and the first sleeve body and the second sleeve body are detachably connected by bolts. At the same time, an opening for easy disassembly and assembly is provided on the lip seal ring 1072, so that the lip seal ring 1072 is sleeved on the outside of the installation kit 1023. In addition, the lip seal ring 1072 is a plurality of lip seal rings 1072 that are closely arranged along the axial direction of the installation kit 1023. When one lip seal ring 1072 is damaged, the other lip seal rings 1072 can still play a sealing effect. In addition, when replacing the lip seal ring 1072, only the damaged lip seal ring 1072 needs to be disassembled and replaced, and all the lip seal rings 1072 do not need to be replaced, which is convenient for the maintenance of the crusher, saves the cost of sealing consumables, and ensures the sealing effect.

[0047] Furthermore, if Figure 2 As shown, the labyrinth seal 1075 includes a first toothed member disposed at the end of the installation kit 1023 and a second toothed member disposed at the end of the bearing housing 201. The first toothed member and the second toothed member are engaged with each other, so that a complex cavity is formed between the first toothed member and the second toothed member, thereby increasing the length and complexity of the water leakage path, so that the water produces a throttling effect when passing through the cavity, thereby reducing leakage. Specifically, the first toothed member and the second toothed member are engaged with each other, and there is a gap between the first toothed member and the second toothed member. When water passes through the gap, it needs to pass through the teeth and grooves of the labyrinth seal 1075, and the teeth and grooves form a tortuous cavity. The design of these cavities causes eddy currents and friction when water passes through, thereby consuming its energy and achieving a sealing effect. At the same time, the cavity is communicated with the oil inlet channel 2011, so that grease can be injected into the cavity of the labyrinth seal 1075 through the oil inlet channel 2011 to fill the gap between the first toothed member and the second toothed member, increase the resistance of water flow, thereby reducing the ability of water to pass through the sealing gap, thereby improving the sealing effect of the labyrinth seal 1075. In this embodiment, on the bearing box 201 at the head end of the rotating shaft 1021, the oil inlet of the oil inlet channel 2011 is located in the circumferential direction of the bearing box 201 to avoid the motor connected to the bearing box 201. On the bearing box 201 at the tail end of the rotating shaft 1021, the oil inlet of the oil inlet channel 2011 is located on the axial end face of the bearing box 201, thereby achieving the effect of efficient oil injection. It should be noted that a plurality of lip seals 1072 are arranged on the axial end face side of the second toothed part on the bearing box 201. When water enters the bearing box 201 through the labyrinth seal 1075, the bearing box 201 can be further sealed by the lip seals 1072 on the axial end face side of the second toothed part, thereby protecting the bearings in the bearing box 201, increasing the service life of the crusher, and reducing the risk of crusher failure.

[0048] The terms "first" and "second" in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crusher, characterized in that: include: A crushing assembly (100), the crushing assembly (100) comprising a crushing cavity (101), the crushing cavity (101) being arranged in a water tank (300), the crushing cavity (101) being sealedly connected to the water tank (300) via a sealing assembly, and a crushing device (102) being arranged in the crushing cavity (101); A driving device (200) is used to drive the crushing device (102) to perform a crushing action, and the driving device (200) is arranged outside the water tank (300), and the driving device (200) comprises a bearing box (201) arranged at both ends of the crushing device (102), a reserved space (103) is provided between the bearing box (201) and the crushing cavity (101), and a water collecting tank (301) is provided below the reserved space (103).

2. The crusher according to claim 1, characterized in that: The crushing assembly (100) comprises a square box (104) and partitions (105) located at both ends of the square box (104), the square box (104) and the partitions (105) are arranged to form the crushing cavity (101), and the square box (104) is used to be detachably connected to the water tank (300) to fix the crushing assembly (100); The crushing device (102) comprises a rotating shaft (1021) passing through the partition (105) and a cutter (1022) arranged on the rotating shaft (1021); installation kits (1023) are arranged at both ends of the rotating shaft (1021); the installation kit (1023) is arranged between the rotating shaft (1021) and the partition (105) and is rotatably matched with the partition (105); and the two ends of the rotating shaft (1021) are respectively connected to the bearing box (201).

3. The crusher according to claim 2, characterized in that: There is a preset distance between the bearing box (201) and the partition plate (105) to form a reserved space (103) between the bearing box (201) and the crushing chamber (101).

4. The crusher according to claim 2, characterized in that: The sealing assembly comprises a first sealing member (106) and a second sealing member (107), wherein the first sealing member (106) is used to be arranged between the partition (105) and the side wall of the water tank (300), and the second sealing member (107) is used to be arranged between the partition (105) and the bearing box (201).

5. The crusher according to claim 4, characterized in that The first sealing member (106) comprises a first mounting groove (1061) opened on the side surface of the partition (105) and a first O-type sealing ring (1062) located in the first mounting groove (1061).

6. The crusher according to claim 4, characterized in that The second seal (107) comprises a lip seal assembly (1071) arranged on the outside of the installation kit (1023) and a labyrinth seal (1075) located at the end of the installation kit (1023), the labyrinth seal (1075) being located between the installation kit (1023) and the bearing box (201), and the labyrinth seal (1075) being used to communicate with an oil inlet channel (2011) arranged on the bearing box (201).

7. The crusher according to claim 6, characterized in that The lip seal assembly (1071) comprises a lip seal ring (1072) sleeved on the outside of the installation kit (1023) and a compression sleeve (1073) for fixing the lip seal ring (1072), and the inner wall of the compression sleeve (1073) is provided with a second installation groove (1074) for installing the lip seal ring (1072); The axial end face of the compression sleeve (1073) is in close contact with the axial end face of the partition (105), and a third mounting groove (1076) is provided on the axial end face of the partition (105), and the third mounting groove (1076) is used to install a second O-ring (1077) to axially seal the partition (105) and the compression sleeve (1073).

8. The crusher according to claim 7, characterized in that The compression sleeve (1073) is a split structure, and the compression sleeve (1073) comprises a first sleeve body and a second sleeve body, and the first sleeve body and the second sleeve body are detachably connected.

9. The crusher according to claim 7, characterized in that: The lip seal rings (1072) are multiple and closely arranged along the axial direction of the installation kit (1023), and each of the lip seal rings (1072) is provided with an opening for easy disassembly and assembly.

10. The crusher according to any one of claims 1 to 9, characterized in that: The water collecting trough (301) is used to be arranged on the side wall of the water tank (300), and the cross-sectional shape of the water collecting trough (301) is L-shaped. The water collecting trough (301) and the side wall of the water tank (300) are arranged to form a water collecting chamber. The bottom wall (3011) of the water collecting chamber is provided with a drainage hole for connecting to a drainage pipe. The bottom wall (3011) of the water collecting chamber is inclined so that the water in the water collecting chamber can be diverted to the drainage hole.

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