Cutting device and operation equipment

Abstract

The invention discloses a cutting device and operation equipment, and belongs to the technical field of mining equipment. The cutting device comprises a rocker arm which is provided with a first end and a second end, and the first end is used for being connected with a coal mining machine body; the cutting assembly is arranged at the second end and is used for carrying out cutting operation; the power assembly is arranged on the rocker arm and used for providing power; the crushing assembly is arranged on the side, away from the cutting assembly, of the rocker arm and used for crushing the materials cut by the cutting assembly. The transmission assembly comprises an input end, a first output end and a second output end, the input end is connected with the power assembly, the first output end is connected with the cutting assembly, and the second output end is connected with the crushing assembly. The cutting device not only is smaller in size of the whole device and low in requirement on installation space, but also is more energy-saving.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mining equipment, and particularly relates to a cutting device and working equipment. BACKGROUND

[0002] The coal mining machine is the most important one in mining machinery and is the core equipment of the fully mechanized working face. It is used in combination with the transportation equipment and the supporting equipment. The cutting part of the coal mining machine cuts the coal wall through the drum, and the coal blocks fall into the scraper conveyor along with the drum. The scraper conveyor transports the coal blocks out of the coal mining working face. In the process of transporting the coal blocks by the scraper conveyor, the coal mining machine body needs to be passed through. When the coal blocks falling into the scraper conveyor are too large, the coal blocks cannot pass through the coal mining machine body and are stuck in the front end of the coal mining machine, so that a large amount of coal blocks on the scraper conveyor cannot be transported out. Usually, the machine needs to be stopped, and the large coal blocks need to be manually removed, which is time-consuming and laborious and reduces the mining efficiency. If large gangue blocks are encountered, the coal mining machine may be lifted upward if it is not stopped in time, and the guide shoe and the walking wheel may be damaged in severe cases.

[0003] In the related technology, a crushing device is additionally arranged on the coal mining machine to crush large coal blocks or large gangue blocks. Referring to Figure 1 and Figure 2 , the crushing device includes a first support seat 1', a support arm 2', a connecting structure 3', a crushing part 4', a protective cover 41', a transmission system 42', a crushing drum 43', a motor 44', a shell 45', a height-adjusting oil cylinder 5' and a second support seat 6'.

[0004] However, in actual application, the crushing device not only has large power consumption, but also has a large volume of the crushing drum 43' and high requirements for the installation space. SUMMARY

[0005] The purpose of the application is to provide a cutting device and working equipment, which are not only energy-saving but also simple in structure, small in overall size and good in matching.

[0006] In a first aspect, the application provides a cutting device, which includes: a rocker arm having a first end and a second end, the first end being used for connecting with a coal mining machine body; a cutting assembly arranged at the second end and used for cutting operation; a power assembly arranged at the rocker arm and used for providing power; a crushing assembly arranged at a side of the rocker arm away from the cutting assembly and used for crushing materials cut by the cutting assembly; and a transmission assembly including an input end, a first output end and a second output end, the input end being connected with the power assembly, the first output end being connected with the cutting assembly, and the second output end being connected with the crushing assembly.

[0007] In the above technical solution, the cutting assembly and the crushing assembly share one power assembly, which can not only reduce the weight and cost of the whole device but also save energy, and the size of the whole device is smaller, so that the requirement for the installation space is low.

[0008] In some embodiments, the transmission assembly comprises at least three gear mechanisms, each of which comprises a gear shaft rotatably arranged on the rocker arm and rotatable about an axis of the gear shaft, and a transmission gear sleeved on the gear shaft and engaged with the transmission gear of an adjacent gear mechanism; the input end, the first output end and the second output end are respectively connected to the gear shafts of the at least three gear mechanisms. The power transmission is achieved through the multi-stage gear mechanism, which can meet different working requirements.

[0009] In some embodiments, the cutting assembly comprises a cutting drum arranged at the second end and rotatable about an axis thereof, a first transmission unit arranged in the cutting drum and in transmission connection with the first output end, and cutting teeth arranged on the surface of the cutting drum. Thus, the cutting drum is driven to rotate for cutting operation by the first transmission unit.

[0010] In some embodiments, the first transmission unit comprises a sun gear connected to the first output end, a planet carrier arranged outside the sun gear and connected to the cutting drum, and a planet wheel arranged on the planet carrier and engaged with the sun gear.

[0011] In the above embodiments, the sun gear and the planet wheel form a planetary gear train structure, so that multiple gears can be integrated in a relatively compact space, so that the entire transmission unit can realize power transmission function in a limited space, and the moment can be balanced during transmission, so that the transmission is more stable, thereby reducing vibration and impact.

[0012] In some embodiments, the first transmission unit further comprises a square head arranged outside the planet carrier and connected to the cutting drum, and a gland arranged above the connection position of the square head and the planet carrier to connect the square head and the planet carrier. In this way, the cutting assembly can be ensured to run stably.

[0013] In some embodiments, the crushing assembly comprises a crushing drum arranged on the side of the rocker arm away from the cutting assembly and rotatable about an axis thereof, a second transmission unit arranged in the crushing drum and in transmission connection with the second output end, and crushing teeth arranged on the surface of the crushing drum. Thus, the crushing drum is driven to perform crushing operation by the second transmission unit.

[0014] In some embodiments, the second transmission unit comprises a connecting shaft connected to the crushing drum, a first gear in transmission connection with the second output end, and at least one second gear engaged with the first gear and arranged on the connecting shaft.

[0015] In the technical scheme, the multi-stage gear transmission mode can ensure the efficiency and stability of power transmission, so that the crushing roller can obtain sufficient and stable power, and the continuous crushing operation can be ensured.

[0016] In some technical schemes, the second transmission unit further comprises a spline shaft, one end of the spline shaft is in transmission connection with the second output end, and the other end is in transmission connection with the first gear; and the spline shaft is detachable to disconnect the second output end and the first gear.

[0017] In the technical scheme, the power loss and transmission error can be further reduced in the power transmission process, so that the crushing roller can obtain stable and reliable power input, and the continuity and efficiency of the crushing operation can be ensured. Meanwhile, since the spline shaft is detachable, when the working condition is good and the crushing treatment is not needed, the spline shaft can be detached from the cutting device, so that the power transmission path is directly cut off, and the crushing assembly is temporarily stopped, so that the energy loss can be reduced, and energy saving can be realized.

[0018] In some technical schemes, the rocker arm is provided with a connecting seat; the crushing assembly and the connecting seat are hinged; and the cutting device further comprises a telescopic assembly, one end of the telescopic assembly is connected with the crushing assembly, and the other end of the telescopic assembly is connected with the rocker arm. In this way, the rotation amplitude and position of the crushing assembly can be controlled through the telescopic action of the telescopic assembly, so that the height of the crushing assembly can be adjusted.

[0019] In a second aspect, the application provides a working equipment comprising the cutting device provided in any of the technical schemes. Therefore, the working equipment has all the beneficial effects of any of the embodiments, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of a crushing device of a coal mining machine in the related art;

[0021] Figure 2 is a structure schematic view of a crushing device of a coal mining machine in the related art;

[0022] Figure 3 is a structure schematic view of a cutting device provided in an embodiment of the application;

[0023] Figure 4 is a structure schematic view of a cutting device provided in an embodiment of the application;

[0024] Figure 5 is a structure schematic view of a cutting device provided in an embodiment of the application;

[0025] wherein, Figure 1 and Figure 2Correspondence between reference signs and component names is as follows:

[0026] 1' first support seat; 2' support arm; 3' connecting structure; 4' crushing part; 41' shroud; 42' transmission system; 43' crushing roller; 44' motor; 45' housing; 5' height adjustment oil cylinder; 6' second support seat.

[0027] Figures 3 to 5 Correspondence between reference signs and component names is as follows:

[0028] 1 cutting device; 10 rocker arm; 102 first end; 104 second end; 106 connecting seat;

[0029] 20 cutting assembly; 210 cutting roller; 220 first transmission unit; 221 sun gear; 222 planetary carrier; 223 planetary gear; 224 square head; 225 gland; 230 cutting tooth; 30 power assembly; 40 crushing assembly; 410 crushing roller; 420 second transmission unit; 422 connecting shaft; 424 first gear; 426 second gear; 428 spline shaft; 430 crushing tooth; 50 transmission assembly; 502 input end; 504 first output end; 506 second output end; 510 gear mechanism; 512 gear shaft; 514 transmission gear; 520 first gear mechanism; 530 second gear mechanism; 540 third gear mechanism; 550 fourth gear mechanism; 560 fifth gear mechanism; 570 sixth gear mechanism; 580 seventh gear mechanism; 60 telescopic assembly; 602 hinged lug; 2 coal winning machine body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0031] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a category, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents that the front and rear associated objects are in an "or" relationship.

[0032] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application. Figures 3 to 5The cutting device and the working equipment provided by the embodiments of the present application are described in detail through specific embodiments and application scenarios.

[0033] With reference to Figure 3 , Figure 4 and Figure 5 , in some embodiments, the present application provides a cutting device 1, comprising a rocker arm 10, a cutting assembly 20, a power assembly 30, a crushing assembly 40 and a transmission assembly 50.

[0034] With reference to Figure 3 and Figure 5 , specifically, the rocker arm 10 has a first end 102 and a second end 104, the first end 102 is used to connect with the shearer body 2. The cutting assembly 20 is arranged at the second end 104 and is used to perform cutting operation. The power assembly 30 is arranged on the rocker arm 10 and is used to provide power for the whole cutting device 1. The crushing assembly 40 is arranged on the side of the rocker arm 10 away from the cutting assembly 20 and is used to crush the material cut down by the cutting assembly 20. The transmission assembly 50 has an input end 502, a first output end 504 and a second output end 506, the input end 502 is connected with the power assembly 30, the first output end 504 is connected with the cutting assembly 20, and the second output end 506 is connected with the crushing assembly 40.

[0035] The rocker arm 10 serves as the framework of the whole cutting device 1 and bears the dual functions of structural support and dynamic connection of the cutting assembly and the shearer body. The first end 102 is the connecting end of the rocker arm 10 and is used to connect with the shearer body 2, and the second end is the working end of the rocker arm 10 and is used to connect with the cutting assembly 20.

[0036] The cutting assembly 20 directly performs cutting operation and crushes the coal seam into transportable block size.

[0037] The power assembly 30 is used to provide power for cutting and crushing, which is usually a motor or a hydraulic motor.

[0038] The crushing assembly 40 is used to perform secondary crushing on the large pieces of coal cut down by the cutting assembly 20 to prevent the blockage of the conveying system.

[0039] The transmission assembly 50 is used to connect the power assembly 30, the cutting assembly 20 and the crushing assembly 40 to realize the distribution of power. The input end 502 is used to connect with the power assembly 30 to transmit the power of the power assembly 30 to the transmission assembly 50, the first output end 504 is connected with the cutting assembly 20 to transmit the power to the cutting assembly 20, and the second output end 506 is connected with the crushing assembly 40 to transmit the power to the crushing assembly 40.

[0040] In the above embodiment, the power of the power assembly 30 is split by the transmission assembly 50 to the cutting assembly 20 and the crushing assembly 40 to realize cutting and crushing; that is, the power transmission path of the cutting device 1 is: power assembly 30-transmission assembly input end 502-double output distribution (first output end 504 / second output end 506)-cutting assembly 20 / crushing assembly 40. In this way, the cutting assembly 20 and the crushing assembly 40 share one power assembly 30, and there is no need to design a separate power for the crushing assembly 40, which not only can reduce the weight and cost of the entire device, but also is more energy-saving; at the same time, the size of the entire device is smaller, and the requirement for the installation space is low. Further, the crushing assembly 40 is directly installed on the rocker arm 10, the structure is compact, the matching is better, and the minimum scraper trough width 764mm can be adapted.

[0041] With reference to Figure 5 In some embodiments, the transmission assembly 50 includes at least three gear mechanisms 510. Each gear mechanism 510 includes a gear shaft 512 and a transmission gear 514. The gear shaft 512 is rotatably arranged on the rocker arm 10 and can rotate around the axis of the gear shaft 512; the transmission gear 514 is sleeved on the gear shaft 512, and the transmission gears 514 of adjacent two gear mechanisms 510 are in meshing cooperation. Among them, the input end 502, the first output end 504 and the second output end 506 are respectively connected with the gear shafts 512 of the at least three gear mechanisms 510.

[0042] The transmission assembly 50 adopts a multi-stage gear mechanism, which is composed of at least three gear mechanisms 510.

[0043] The gear shaft 512 serves as a rotating carrier and is rotatably arranged on the rocker arm 10 and can freely rotate around its own axis.

[0044] The transmission gear 514 is arranged on the gear shaft 512, and the transmission gears 514 corresponding to adjacent two gear mechanisms 510 will mesh with each other, and this meshing relationship constitutes the basis of power transmission, so that power can be transmitted from one gear mechanism 510 to another gear mechanism 510.

[0045] In the above embodiment, the input end 502, the first output end 504 and the second output end 506 are respectively connected with the gear shafts 512 of the at least three gear mechanisms 510. Through such a connection mode, power can enter the transmission assembly 50 from the input end 502, and after transmission and transformation of multiple gears, it is output from the first output end 504 and the second output end 506 to the cutting assembly 20 and the crushing assembly 40 in different transmission paths to meet different working requirements.

[0046] With reference to Figure 3 and Figure 4In some embodiments, the cutting assembly 20 comprises a cutting drum 210, a first transmission unit 220 and cutting teeth 230. The cutting drum 210 is rotatably arranged at the second end 104 and can rotate around its own axis. The first transmission unit 220 is arranged in the cutting drum 210 and is in transmission connection with the first output end 504. The cutting teeth 230 are arranged on the surface of the cutting drum 210.

[0047] The cutting drum 210 is generally cylindrical and has sufficient strength and rigidity to withstand the huge load during cutting.

[0048] The first transmission unit 220 is used to transmit power from the transmission assembly 50 to the cutting drum 210 to drive the cutting drum 210 to rotate.

[0049] The cutting teeth 230 are arranged on the surface of the cutting drum 210 and are the cutting tools for direct cutting operation. The shapes of the cutting teeth are various, and the common ones are pick-shaped cutting teeth and knife-shaped cutting teeth. The shape, size and arrangement of the cutting teeth 230 can be designed according to different material properties and crushing requirements. For example, for materials with high hardness, the cutting teeth 230 are made of wear-resistant materials; and for materials that need to be finely crushed, the cutting teeth 230 are arranged more densely to increase the crushing frequency and effect.

[0050] In the above embodiment, the first transmission unit 220 is arranged in the internal space of the cutting drum 210 and is in transmission connection with the first output end 504 of the transmission assembly 50 to obtain power. When the cutting drum 210 rotates around its own axis under the drive of the power, the cutting teeth 230 installed on the surface will be in contact with the coal seam or rock stratum in turn, crushing and cutting the coal seam or rock stratum to form small pieces.

[0051] In some embodiments, the first transmission unit 220 comprises a sun gear 221, a planet carrier 222 and a planet gear 223. The sun gear 221 is connected with the first output end 504; the planet carrier 222 is arranged outside the sun gear 221 and is connected with the cutting drum 210; and the planet gear 223 is arranged in the planet carrier 222 and is in meshing cooperation with the sun gear 221.

[0052] The sun gear 221 is one of the core components in the planetary gear transmission system and is usually located at the center position of the system. As a power input element, the sun gear 221 receives power from the transmission assembly 50 and drives the planet gear 223 to move in revolution and rotation when the sun gear 221 rotates.

[0053] The planet wheel 223 is a gear rotating around the sun wheel 221, usually multiple, evenly distributed around the sun wheel 221. The tooth shape of the planet wheel 223 matches the sun wheel 221 to achieve good meshing transmission. When the sun wheel 221 rotates, the planet wheel 223 will revolve around the sun wheel 221 due to the rotation of the sun wheel 221 (just like the revolution of the planets around the sun); on the other hand, due to the meshing action between the planet wheel 223 and the sun wheel 221, the planet wheel 223 itself will also rotate around its own axis.

[0054] The planet carrier 222 is a component that supports the planet wheel 223, usually a frame structure with certain strength and rigidity. The planet carrier 222 has multiple shaft holes for installing the planet wheel 223, and the planet wheel 223 is installed in these shaft holes through bearings, so that the planet wheel 223 can rotate freely under the support of the planet carrier 222.

[0055] In the above embodiment, the planet carrier 222 is connected to the cutting drum 210, and the power and torque transmitted by the planet wheel 223 are transmitted to the cutting drum 210 to drive the cutting drum 210 to rotate for cutting operation. By forming a planetary gear train structure with the sun wheel 221 and the planet wheel 223, multiple gears (sun wheel, planet wheel) can be integrated in a relatively compact space, so that the entire transmission unit can realize power transmission function in a limited space, and at the same time, the moment can be balanced during transmission, so that the transmission is more stable, thereby reducing vibration and impact.

[0056] In some embodiments, the first transmission unit 220 further includes a square head 224 and a gland 225. The square head 224 is arranged outside the planet carrier 222 and connected to the cutting drum 210. The gland 225 is arranged above the connection position of the square head 224 and the planet carrier 222 to connect the square head 224 and the planet carrier 222.

[0057] The core part of the square head 224 is a square cross section, which can prevent relative rotation during transmission, thereby ensuring the stability of power transmission. At the same time, the square head 224 can transmit large torque in a small space, meeting the demand for high power and high torque during the operation of the cutting device.

[0058] The gland 225 is a circular or square flat structure, and its size and shape are determined according to the square head 224 and the installation space. The gland 225 is installed above the connection position of the square head 224 and the planet carrier 222 by fasteners to tightly connect the square head 224 and the planet carrier 222 together. During operation, the gland 225 can withstand a certain vibration and impact force to prevent the connection between the square head 224 and the planet carrier 222 from loosening, thereby ensuring the continuity and stability of power transmission.

[0059] In the above embodiment, the square head 224 is fixed on the planet carrier 222 and rotates synchronously with the planet carrier 222, thereby transmitting the rotating power to the cutting drum 210 to make the cutting drum 210 also rotate at the same speed, achieving smooth operation of the cutting operation.

[0060] In some embodiments, the crushing assembly 40 includes a crushing drum 410, a second transmission unit 420, and crushing teeth 430. The crushing drum 410 is arranged on the side of the rocker arm 10 away from the cutting assembly 20 and can rotate about its own axis; the second transmission unit 420 is arranged in the crushing drum 410 and is in transmission connection with the second output end 506; and the crushing teeth 430 are arranged on the surface of the crushing drum 410.

[0061] The crushing drum 410 is the main load-bearing component and rotating body of the crushing assembly 40. The crushing drum 410 has the ability to rotate about its own axis, and the stability and precision of its rotating motion play a crucial role in the subsequent crushing operation effect. In actual application, the crushing drum 410 is usually made of high-strength alloy steel to ensure that it can maintain the integrity and stability of the structure when subjected to high-strength crushing force and complex working conditions.

[0062] The second transmission unit 420 is arranged in the internal space of the crushing drum 410 and is in transmission connection (such as gear transmission, chain transmission, etc.) with the second output end 506 of the transmission assembly 50. The core role of the second transmission unit 420 is to transmit the power output by the second output end 506 to the crushing drum 410 to drive the crushing drum 410 to rotate at a predetermined speed and torque.

[0063] The crushing teeth 430 are key components that directly contact and crush the material. During the crushing process, as the crushing drum 410 rotates, the crushing teeth 430 exert impact force, shear force, and extrusion force on the material, thereby achieving secondary crushing of the material. The shape, size, and arrangement of the crushing teeth 430 can be designed according to different material properties and crushing requirements. For example, for materials with high hardness, the crushing teeth 430 are made of wear-resistant materials; and for materials that need to be finely crushed, the arrangement of the crushing teeth 430 can be more dense to increase the frequency and effect of crushing.

[0064] In the above embodiment, the second transmission unit 420 is arranged in the internal space of the crushing drum 410 and is in transmission connection with the second output end 506 of the transmission assembly 50 to obtain power. When the crushing drum 410 rotates about its own axis under the drive of the power, the crushing teeth 430 installed on the surface will successively contact the coal or rock blocks cut by the cutting assembly 20 and perform secondary crushing and cutting, so as to form small blocks.

[0065] In some embodiments, the second transmission unit 420 comprises a connecting shaft 422, a first gear 424 and at least one second gear 426.

[0066] The connecting shaft 422 is connected with the crushing roller 410. The first gear 424 is in transmission connection with the second output end 506. The at least one second gear 426 is in meshing engagement with the first gear 424 and is arranged on the connecting shaft 422.

[0067] The connecting shaft 422 is connected with the crushing roller 410, so that the connecting shaft 422 can drive the crushing roller 410 to rotate synchronously, thereby providing stable and reliable power input for the crushing roller 410.

[0068] The first gear 424 is the starting end of power transmission of the crushing assembly 40, and is in transmission connection (such as straight tooth transmission or helical tooth transmission) with the second output end 506 of the transmission assembly 50. When the second output end 506 starts to operate, power is transmitted to the first gear 424, so that the first gear 424 rotates around its own axis.

[0069] The at least one second gear 426 is in meshing engagement with the first gear 424 and is arranged on the connecting shaft 422. In the transmission process, the rotation of the first gear 424 drives the second gear 426 in meshing engagement with it to rotate. Since the second gear 426 is installed on the connecting shaft 422, its rotational motion is transmitted to the crushing roller 410 through the connecting shaft 422, thereby achieving power transmission.

[0070] In the above embodiment, the power source of the second transmission unit 420 is the second output end 506 of the transmission assembly 50. When the second output end 506 starts to operate, power is transmitted to the first gear 424, so that the first gear 424 starts to rotate around its own axis. When the first gear 424 rotates, the second gear 426 starts to rotate synchronously under the action of the first gear 424. The rotational motion of the second gear 426 is directly transmitted to the connecting shaft 422, so that the connecting shaft 422 also rotates around its own axis. When the connecting shaft 422 rotates, it drives the crushing roller 410 to rotate around its own axis. The surface of the crushing roller 410 is provided with crushing teeth 430. With the rotation of the crushing roller 410, the crushing teeth 430 crush the material again. This multi-stage gear transmission mode can ensure the efficiency and stability of power transmission. Gear transmission itself has the characteristics of high transmission efficiency. Under reasonable gear design and lubrication conditions, the energy loss is small, which can make the crushing roller 410 obtain sufficient and stable power and ensure the continuous operation of the crushing operation.

[0071] In some embodiments, the second transmission unit 420 further comprises a spline shaft 428. One end of the spline shaft 428 is in transmission connection with the second output end 506, and the other end is in transmission connection with the first gear 424. The spline shaft 428 is detachable to disconnect the second output end 506 and the first gear 424.

[0072] The spline shaft 428 is a shaft with splines, which are a plurality of evenly distributed key teeth made on the surface of the shaft or hole in the circumferential direction, which are engaged with the key grooves on the matched parts to realize the connection and power transmission between the shaft and the parts.

[0073] In the above embodiment, one end of the spline shaft 428 is in transmission connection with the second output end 506 through spline matching, which receives the rotating power from the second output end 506. The other end of the spline shaft 428 is also in transmission connection with the first gear 424 through spline matching. When the spline shaft 428 rotates under the drive of the second output end 506, it will transmit power to the first gear 424, making the first gear 424 rotate around its own axis. Compared with the traditional flat key connection, the spline connection has the characteristics of transmitting torque with multiple teeth at the same time, which can disperse the load and reduce stress concentration, thereby improving the carrying capacity and transmission efficiency of the connection. In the power transmission process, it can reduce power loss and transmission error, so that the crushing roller 410 can obtain stable and reliable power input, ensuring the continuity and efficiency of the crushing operation.

[0074] Further, since the spline shaft 428 is detachable, when the working condition is good and no crushing is needed, the spline shaft 428 can be detached from the cutting device 1, thereby directly cutting off the power transmission between the second output end 506 and the first gear 424, i.e. the power of the second output end 506 cannot be transmitted to the first gear 424, and the entire crushing assembly 40 connected with the first gear 424 loses power input. At this time, the crushing assembly 40 stops working, thereby reducing energy consumption and achieving energy saving.

[0075] In some embodiments, the rocker arm 10 is provided with a connecting seat 106, and the crushing assembly 40 and the connecting seat 106 are connected through a hinge shaft, and the crushing assembly 40 can rotate around the hinge shaft, i.e. the crushing assembly 40 and the connecting seat 106 are hinged. The cutting device 1 further comprises a telescopic assembly 60, one end of which is connected with the crushing assembly 40, and the other end is connected with the rocker arm 10.

[0076] In actual application, through the telescopic movement of the telescopic assembly 60, the rotation amplitude and position of the crushing assembly 40 can be controlled to realize the height control of the crushing assembly 40.

[0077] In the above embodiment, the two ends of the telescopic assembly 60 are respectively hinged to the rocker arm 10 and the crushing assembly 40 through the hinged ears 602. In other words, the rocker arm 10 and the crushing assembly 40 are provided with the hinged ears 602, and the telescopic assembly 60 is hingedly connected to the rocker arm 10 and the crushing assembly 40 through the hinged ears 602. Through the hinged connection, the telescopic assembly 60 can adapt to the movement change of the crushing assembly 40 and will not be stuck or damaged due to the change of the movement track, thereby ensuring the normal operation of the entire cutting device 1. It can be understood that the telescopic assembly 60 can be an oil cylinder, a telescopic rod, etc.

[0078] Referring to Figure 3 and Figure 4 In some embodiments, the present application provides a cutting device 1, which comprises a rocker arm 10, a cutting assembly 20, a power assembly 30, a crushing assembly 40, a transmission assembly 50 and a telescopic assembly 60.

[0079] The rocker arm 10 has a first end 102 and a second end 104, and the first end 102 is used to be connected to the machine body 2 of the coal mining machine. The cutting assembly 20 is arranged at the second end 104 and is used to perform cutting operation. The power assembly 30 is arranged in the rocker arm 10 and is used to provide power for the entire cutting device 1.

[0080] The crushing assembly 40 is arranged on the side of the rocker arm 10 away from the cutting assembly 20 and is used to crush the material cut down by the cutting assembly 20. The crushing assembly 40 comprises a crushing roller 410, a second transmission unit 420 and crushing teeth 430. The second transmission unit 420 comprises a first gear 424 and two second gears 426, which are sequentially meshed and matched.

[0081] The transmission assembly 50 has an input end 502, a first output end 504 and a second output end 506. The input end 502 is connected to the power assembly 30, the first output end 504 is connected to the cutting assembly 20, and the second output end 506 is connected to the crushing assembly 40. The transmission assembly 50 comprises a first gear mechanism 520, a second gear mechanism 530, a third gear mechanism 540, a fourth gear mechanism 550, a fifth gear mechanism 560, a sixth gear mechanism 570 and a seventh gear mechanism 580 which are sequentially transmissionally connected. The input end 502 is connected to the first gear mechanism 520, the first output end 504 is connected to the seventh gear mechanism 580, and the second output end 506 is connected to the fourth gear mechanism 550.

[0082] It can be understood that the second output end 506 can also be connected to the third gear mechanism 540 or the fourth gear mechanism 550.

[0083] In some embodiments, the present application also provides a working equipment comprising the cutting device 1 provided by any of the above embodiments, whereby the working equipment has all the advantages of any of the above embodiments, which will not be repeated here.

[0084] In practical applications, the working equipment can be a coal mining machine, a heading machine, etc.

[0085] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article, or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0086] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, which are only illustrative and not limiting, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A cutting device, characterized in that, include: A rocker arm having a first end and a second end, the first end being used to connect to the body of the coal mining machine; A cutting component, disposed at the second end, is used to perform cutting operations; A power unit, disposed on the rocker arm, is used to provide power; A crushing component is disposed on the side of the rocker arm away from the cutting component, and is used to crush the material cut by the cutting component; The transmission assembly includes an input end, a first output end, and a second output end. The input end is connected to the power assembly, the first output end is connected to the cutting assembly, and the second output end is connected to the crushing assembly.

2. The cutting device according to claim 1, characterized in that, The transmission assembly includes: At least three gear mechanisms, each of which includes a gear shaft and a transmission gear. The gear shaft is rotatably mounted on the rocker arm and can rotate about the axis of the gear shaft. The transmission gear is sleeved on the gear shaft, and the transmission gears of two adjacent gear mechanisms mesh with each other. The input terminal, the first output terminal, and the second output terminal are respectively connected to the gear shafts of at least three of the gear mechanisms.

3. The cutting device according to claim 2, characterized in that, The cutting component includes: A cutting roller is disposed at the second end and can rotate about its own axis; The first transmission unit is disposed inside the cutting drum and is connected to the first output end in a transmission manner; Cutting teeth are disposed on the surface of the cutting roller.

4. The cutting device according to claim 3, characterized in that, The first transmission unit includes: The sun gear is connected to the first output terminal; A planetary carrier is disposed outside the sun gear and connected to the cutting roller; Planetary gears are mounted on the planet carrier and mesh with the sun gear.

5. The cutting device according to claim 4, characterized in that, The first transmission unit further includes: A square head is disposed on the outside of the planetary carrier and connected to the cutting roller; A pressure cap is disposed above the connection position between the square head and the planetary carrier to connect the square head and the planetary carrier.

6. The cutting device according to claim 2, characterized in that, The crushing component includes: The crushing drum is located on the side of the rocker arm away from the cutting assembly and can rotate around its own axis; The second transmission unit is disposed inside the crushing drum and is connected to the second output end for transmission. Crushing teeth are disposed on the surface of the crushing drum.

7. The cutting device according to claim 6, characterized in that, The second transmission unit includes: The connecting shaft is connected to the crushing drum; The first gear is connected to the second output end via a transmission. At least one second gear, which meshes with the first gear, is disposed on the connecting shaft.

8. The cutting device according to claim 7, characterized in that, The second transmission unit further includes a splined shaft, one end of which is connected to the second output end and the other end of which is connected to the first gear; wherein the splined shaft is detachable so that the second output end and the first gear are disconnected.

9. The cutting device according to any one of claims 1 to 8, characterized in that, The rocker arm is provided with a connecting seat; the crushing component and the connecting seat are hinged; wherein, the cutting device further includes: A telescopic assembly, one end of which is connected to the crushing assembly, and the other end of which is connected to the rocker arm.

10. A working device, characterized in that, Includes the cutting device as described in any one of claims 1 to 9.

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