Crushing device for hydraulic unloader

Abstract

The utility model relates to a crushing device for a hydraulic unloader, which comprises a rack, a middle longitudinal beam is longitudinally arranged in the middle of the rack, two crushing units are transversely arranged on the rack at intervals, the two crushing units are symmetrically arranged on the rack, and each crushing unit comprises a plurality of knife rollers which are longitudinally arranged at intervals. The outer end of the knife roll is rotationally arranged on the rack through a mounted bearing A, and the inner end of the knife roll is rotationally arranged on the middle longitudinal beam through a mounted bearing B. A speed reducer is arranged on the rack, a motor is arranged at the input end of the speed reducer, the output end of the speed reducer is connected with the knife roll, and a plurality of crushing knives are arranged on the knife roll at intervals in the axial direction of the knife roll. And the crushing knives on the two longitudinally adjacent knife rolls are arranged in a staggered manner. The utility model has the advantages of reasonable structural design, strong impact resistance, long service life and the like.

Description

Technical field:

[0001] The utility model relates to the technical field of hydraulic car unloading machines, in particular to a crushing device for hydraulic car unloading machines. Background technology:

[0002] Hydraulic unloaders are mainly used for rear dumping of large transport vehicles. In order to facilitate temporary storage and transfer of materials, a material pit is usually set up at the rear end of the hydraulic unloader. In actual production, large transport vehicles will transport some bulk materials such as coal. In order to prevent blockage and for later use, such bulk materials usually need to be crushed. Therefore, in actual applications, a crusher is designed on the top of the material pit for crushing.

[0003] The working principle of the existing crusher is relatively mature. For example, the anti-blocking pit for unloading machine applied by our company before (authorization announcement number: CN212197637U) mainly crushes large pieces of materials through the cutter roller and the crushing knife on it, and the drive is usually realized by motor and chain drive. Although the existing crusher has achieved the purpose of crushing to a certain extent, it has been proved in practice that there are still deep technical problems. For example, after a period of use, the cutter roller in the crusher is prone to bending and deformation. The bending and deformation of the cutter roller will not only affect the crushing efficiency, but also cause uneven force on the chain drive at the end of the cutter roller. The direct consequence is that the chain will break after a period of use. The fundamental reason for the above problems is that, considering the large transport vehicle width is usually about 2.5m and the unloading platform and other factors, the length of the cutter roller in the existing crusher is usually designed to be more than 4m. In addition, the weight of the material that can fall into the unloading can usually reach about 5 tons and mainly falls on the middle part of the cutter roller. This leads to the cutter roller being designed to be longer and also to withstand a large impact force. Therefore, the cutter roller is prone to bending after a period of use. Therefore, it is necessary to optimize and improve the existing crusher structure to extend its service life.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility model content:

[0005] The utility model aims to solve the problems existing in the prior art and provide a crushing device for a hydraulic unloading machine, which has the advantages of reasonable structural design, strong impact resistance, long service life, etc.

[0006] The utility model achieves the above-mentioned purpose by adopting the following technical solutions:

[0007] The crushing device for a hydraulic car unloader includes a frame. A middle longitudinal beam is longitudinally arranged in the middle of the frame. Two crushing units are transversely spaced on the frame, and the two crushing units are symmetrically arranged on the frame. The crushing unit includes a plurality of cutter rollers longitudinally spaced. The outer end of the cutter roller is rotatably arranged on the frame through a pedestal bearing A, and the inner end is rotatably arranged on the middle longitudinal beam through a pedestal bearing B. A speed reducer is arranged on the frame. The input end of the speed reducer is provided with a motor, and the output end is connected to the cutter roller. A plurality of crushing knives are spaced along the axial direction of the cutter roller, and the crushing knives on two longitudinally adjacent cutter rollers are arranged in a staggered manner.

[0008] The frame includes two side longitudinal beams transversely spaced. A middle longitudinal beam is arranged between the two side longitudinal beams. A plurality of cross beams are longitudinally spaced between the middle longitudinal beam and the side longitudinal beams. Side mounting plates are arranged at the upper ends of the side longitudinal beams along their lengths. A connecting plate is arranged at the end between the two side mounting plates. The speed reducer is mounted on the side mounting plates through a mounting bracket.

[0009] A plurality of columns are spaced at the upper end of the middle longitudinal beam. A diversion and protection cover is arranged at the upper end of the column, and the diversion and protection cover guides the material onto the two side crushing units.

[0010] The utility model adopts the above structure and can bring the following beneficial effects:

[0011] By designing a middle longitudinal beam on the frame, two crushing units are symmetrically designed at the upper end of the frame, and thus the length of the cutter roller can be reduced by half, effectively improving the impact resistance of the cutter roller. The cutter roller is driven by a speed reducer and a motor, improving the driving reliability and effectively extending the service life of the crushing device. Description of the drawings:

[0012] Figure 1 is the top view of the crushing device for the hydraulic car unloader of the utility model;

[0013] Figure 2 is the three-dimensional structure diagram of the crushing device for the hydraulic car unloader of the utility model;

[0014] Figure 3 is the structural schematic diagram of the crushing device for the hydraulic car unloader of the utility model with a diversion and protection cover installed;

[0015] Figure 4 is the installation structural schematic diagram of the diversion and protection cover of the utility model;

[0016] In the figure, 1. Frame, 101. Side longitudinal beam, 102. Cross beam, 103. Side mounting plate, 104. Connecting plate, 2. Middle longitudinal beam, 3. Crushing unit, 4. Cutter roller, 5. Pedestal bearing A, 6. Pedestal bearing B, 7. Speed reducer, 8. Motor, 9. Crushing knife, 10. Mounting bracket, 11. Column, 12. Diversion and protection cover. Detailed implementation manners:

[0017] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0018] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0019] The various embodiments in this specification are described in a progressive manner. For the parts that are the same or similar among the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0020] In addition, terms such as "lateral", "longitudinal", "upper end", "A", "B", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the position of the indicated technical features.

[0021] In the present utility model, unless otherwise clearly specified and defined, terms such as "provided with", "set", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figures 1-4 shown, the crushing device for a hydraulic truck unloader includes a frame 1. A middle longitudinal beam 2 is longitudinally provided in the middle of the frame 1. Two crushing units 3 are horizontally spaced on the frame 1. The two crushing units 3 are symmetrically arranged on the frame 1. The crushing unit 3 includes a plurality of cutter rollers 4 longitudinally spaced. The outer end of the cutter roller 4 is rotatably arranged on the frame 1 through a pedestal bearing A 5, and the inner end is rotatably arranged on the middle longitudinal beam 2 through a pedestal bearing B 6. A speed reducer 7 is provided on the frame 1. The input end of the speed reducer 7 is provided with a motor 8, and the output end is connected to the cutter roller 4. A plurality of crushing knives 9 are spaced along the axial direction of the cutter roller 4. The crushing knives 9 on two longitudinally adjacent cutter rollers 4 are arranged in a staggered manner. By designing the middle longitudinal beam 2 on the frame 1, two crushing units 3 are symmetrically designed at the upper end of the frame 1, and thus the length of the cutter roller 4 can be reduced by half, effectively improving the impact resistance of the cutter roller 4. The cutter roller 4 is driven by the speed reducer 7 and the motor 8 to replace the existing chain drive, improving the driving reliability and effectively extending the service life of the crushing device.

[0023] The frame 1 includes two side longitudinal beams 101 arranged at a lateral interval. There is an intermediate longitudinal beam 2 between the two side longitudinal beams 101. A plurality of cross beams 102 are longitudinally arranged at intervals between the intermediate longitudinal beam 2 and the side longitudinal beams 101. Side mounting plates 103 are provided at the upper ends of the side longitudinal beams 101 along their lengths. A connecting plate 104 is provided at the end between the two side mounting plates 103. The speed reducer 7 is installed on the side mounting plates 103 through a mounting bracket 10. The intermediate longitudinal beam 2 can be formed by welding two longitudinal beams or can be designed with an integral molding. The specific structural form of the frame 1 is given, taking into account both the structural strength and the convenience of installing other components.

[0024] A plurality of columns 11 are provided at intervals at the upper end of the intermediate longitudinal beam 2. A diversion and protection cover 12 is provided at the upper ends of the columns 11. The diversion and protection cover 12 guides the material onto the crushing units 3 on both sides. The diversion and protection cover 12 can be in an inverted V shape, mainly protecting the components located on the intermediate longitudinal beam 2 and preventing the material from accumulating on the intermediate longitudinal beam 2.

[0025] The above specific embodiments cannot be used to limit the protection scope of the present utility model. For those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present utility model falls within the protection scope of the present utility model.

[0026] Those parts not detailed in the present utility model are all well-known technologies to those skilled in the art of this technology.

Claims

1. The crushing device for a hydraulic truck unloader is characterized in that It includes a frame. A middle longitudinal beam is longitudinally provided in the middle of the frame. Two crushing units are horizontally spaced on the frame. The two crushing units are symmetrically arranged on the frame. The crushing unit includes a plurality of cutter rollers longitudinally spaced. The outer end of the cutter roller is rotatably arranged on the frame through a pedestal bearing A, and the inner end is rotatably arranged on the middle longitudinal beam through a pedestal bearing B. A speed reducer is provided on the frame. The input end of the speed reducer is provided with a motor, and the output end is connected to the cutter roller. A plurality of crushing knives are spaced along the axial direction of the cutter roller. The crushing knives on two longitudinally adjacent cutter rollers are arranged in a staggered manner.

2. The crushing device for a hydraulic truck unloader according to claim 1, characterized in that, The frame includes two side longitudinal beams horizontally spaced. A middle longitudinal beam is provided between the two side longitudinal beams. A plurality of cross beams are longitudinally spaced between the middle longitudinal beam and the side longitudinal beams. Side mounting plates are provided at the upper ends of the side longitudinal beams along their lengths. A connecting plate is provided at the end between the two side mounting plates. The speed reducer is installed on the side mounting plates through a mounting bracket.

3. The crushing device for a hydraulic truck unloader according to claim 2, characterized in that, A plurality of columns are spaced at the upper end of the middle longitudinal beam. A diversion guard is provided at the upper end of the column. The diversion guard guides the material onto the two side crushing units.

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