Driving structure of crushing main shaft and crusher

Abstract

The utility model discloses a driving structure of a crushing main shaft and a crusher adopting the driving structure. The driving structure of the crushing main shaft comprises a rack, the crushing main shaft and a first rotary driving mechanism, the crushing main shaft is rotatably arranged in the rack, and a first mounting cavity is formed in one end of the crushing main shaft; the first rotary driving mechanism comprises a first rotary driving device and a first speed reducer, the first speed reducer is embedded in the first mounting cavity, and the first rotary driving device is mounted outside the rack; the first rotation driving device drives the crushing main shaft to rotate relative to the rack through the first speed reducer. By the adoption of the structure, the first speed reducer is stored in the crushing main shaft, and compared with a driving motor and a speed reducer of a traditional rotating driving mechanism of the crushing main shaft are both located outside a machine frame, the size, located outside the machine frame, of the first rotating driving mechanism can be reduced through the driving structure of the embodiment; and the space volume occupied by the first rotary driving mechanism is reduced.

Description

Technical Field

[0001] This utility model relates to the field of solid waste crushing equipment, and in particular to a drive structure for a crushing spindle and a crusher using the above-mentioned drive structure. Background Technology

[0002] With social development and continuous advancements in science and technology, the amount of solid waste generated in daily life and production is increasing. To protect the environment and conserve resources, some recyclable solid waste is now being recycled or reprocessed. Some companies are even producing combustible solid waste into solid waste-derived fuels.

[0003] Enterprises commonly use single-shaft, double-shaft, or multi-shaft crushers to process solid waste into solid waste-derived fuels. A single-shaft crusher typically includes a frame with an internal processing chamber. A crushing main shaft is rotatably mounted within the processing chamber. Moving blades are fixedly mounted on the outer wall of the crushing main shaft, while fixed blades are fixedly mounted on the inner wall of the processing chamber. A rotary drive mechanism is fixedly mounted externally to the frame. This mechanism includes a drive motor, a reducer, and a coupling. The drive motor's conveying end is connected to the reducer, and the reducer's output end is connected to the coupling, which in turn is connected to the crushing main shaft. When solid waste is placed into the processing chamber, the drive motor drives the crushing main shaft to rotate via the reducer and coupling. This causes the moving blades on the outer wall of the crushing main shaft to shear against the fixed blades on the inner wall of the processing chamber, thus crushing the solid waste.

[0004] While the aforementioned single-shaft crushers can meet the needs of enterprises for crushing solid waste, these enterprises typically process solid waste in factories located in suburban areas of cities. Therefore, these single-shaft crushers require a compact structure and convenient transportation and installation. However, the existing single-shaft crushers have a rotary drive mechanism located outside the frame, which is mainly composed of a drive motor, a reducer, and a coupling connected in sequence. This results in a relatively long overall size of the rotary drive mechanism, making the axial length of the entire single-shaft crusher along the crushing shaft quite large. Consequently, these single-shaft crushers are large in size, making them inconvenient to transport and install, and they occupy too much floor space. Utility Model Content

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, a first aspect of this invention provides a drive structure for a crushing spindle, which reduces the size of the first rotary drive mechanism located outside the frame; a second aspect of this invention provides a crusher employing the aforementioned drive structure for a crushing spindle, which helps to reduce the overall size of the crusher, facilitating its transportation and installation, and reducing its floor space.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a drive structure for a crushing spindle, comprising a frame, a crushing spindle, and a first rotary drive mechanism. The crushing spindle is rotatably disposed inside the frame, and a first mounting cavity is formed at one end of the crushing spindle. The first rotary drive mechanism comprises a first rotary drive device and a first reducer. The first reducer is embedded inside the first mounting cavity and is drively connected to the crushing spindle. The first rotary drive device is fixedly installed outside the frame at a position corresponding to the crushing spindle, and is drively connected to the first reducer. The first rotary drive device can drive the crushing spindle to rotate relative to the frame through the first reducer.

[0007] The beneficial effects of a drive structure for a crushing spindle according to certain embodiments of this utility model are as follows:

[0008] In this embodiment, the drive structure has a first mounting cavity at one end of the crushing spindle. The first reducer of the first rotary drive mechanism can be embedded inside the first mounting cavity of the crushing spindle and connected to the crushing spindle for transmission. The first rotary drive device of the first rotary drive mechanism is located outside the frame. By adopting the above structure, the first reducer is housed inside the crushing spindle. Compared with the traditional rotary drive mechanism of the crushing spindle, where both the drive motor and reducer are located outside the frame, the drive structure of this embodiment can reduce the size of the first rotary drive mechanism located outside the frame, thereby reducing the space occupied by the first rotary drive mechanism.

[0009] In some embodiments of this utility model, the first reducer is a planetary gear reducer, the end of the planetary gear reducer facing the first rotary drive device is provided with a power input end, the outer shell of the planetary gear reducer is a power output end, the first rotary drive device is connected to the power input end of the planetary gear reducer, and the outer shell of the planetary gear reducer is fixedly connected to the crushing main shaft.

[0010] In some embodiments of this utility model, a first torque limiter is provided between the first rotary drive device and the first reducer, and the first rotary drive device is connected to the first reducer through the first torque limiter.

[0011] In some embodiments of this utility model, a first protective housing is provided between the first rotary drive device and the first reducer. The first protective housing is fixedly connected to the first rotary drive device. A first receiving cavity is provided inside the first protective housing, and the first torque limiter is located inside the first receiving cavity.

[0012] In some embodiments of this utility model, the outer surface of the first protective housing is provided with a mounting flange, the frame is provided with a first clearance hole adapted to the first protective housing, the first protective housing is inserted into the first clearance hole, and the mounting flange is connected to the frame.

[0013] In some embodiments of this utility model, the first rotary drive device is a motor.

[0014] In some embodiments of this utility model, a second rotary drive mechanism is included. The second rotary drive mechanism includes a second rotary drive device and a second reducer. A second mounting cavity is provided at the other end of the crushing main shaft. The second reducer is embedded in the second mounting cavity and is drive-connected to the crushing main shaft. The second rotary drive device is located outside the frame and is drive-connected to the second reducer.

[0015] In some embodiments of this utility model, a second protective housing is fixedly provided at one end of the second rotary drive device facing the second reducer. A second receiving cavity is provided inside the second protective housing. The frame is provided with a second clearance hole adapted to the second protective housing. The second protective housing passes through the second clearance hole. A second torque limiter is provided between the second rotary drive device and the second reducer. The second rotary drive device is connected to the second reducer through the second torque limiter. The second torque limiter is located inside the second receiving cavity.

[0016] In some embodiments of this utility model, an elastic arm assembly is provided between the second rotary drive device and the frame, and the second rotary drive device is movably connected to the frame through the elastic arm assembly.

[0017] A crusher according to certain embodiments of the present invention includes a crusher body, wherein the crusher body adopts the above-described drive structure for a crushing spindle.

[0018] The beneficial effects of a crusher according to certain embodiments of this utility model are as follows:

[0019] By adopting the above-described drive structure, the crusher of this embodiment can house the first reducer of the first rotary drive mechanism inside the crushing main shaft. Compared with the traditional crushing main shaft where both the drive motor and reducer of the rotary drive mechanism are located outside the frame, the crusher of this embodiment can reduce the size of the first rotary drive mechanism located outside the frame, thereby reducing the overall size of the crusher, facilitating the transportation and installation of the crusher, and reducing the footprint of the crusher. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the drive structure of a crushing spindle in some embodiments of the present invention when the frame is removed;

[0022] Figure 2 for Figure 1 The diagram shows a drive structure for a crushing spindle in which the first reducer and the crushing spindle are separated from each other.

[0023] Figure 3 for Figure 1 The diagram shows a drive structure for a crushing spindle during the removal of the crushing spindle.

[0024] Figure 4 for Figure 1 The image shows a cross-sectional view of the internal structure of a drive structure for a crushing spindle.

[0025] Figure 5 for Figure 1 The diagram shows a cross-sectional view of the drive structure of a crushing spindle.

[0026] Figure 6 This is a schematic diagram of the drive structure of a crushing spindle according to another embodiment of the present invention when the frame is removed;

[0027] Figure 7 for Figure 6 The image shows a cross-sectional view of the internal structure of a drive structure for a crushing spindle. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means three or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," etc., are used only to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Figures 1 to 7 This is a schematic diagram of some embodiments of the drive structure of a crushing spindle according to the present invention.

[0033] Reference Figures 1 to 5 and mainly refer to Figure 2 , Figure 4 and Figure 5 According to certain embodiments of the present invention, a drive structure for a crushing spindle (hereinafter referred to as "drive structure" for ease of explanation) includes a frame 100, a crushing spindle 200, and a first rotary drive mechanism 300. The frame 100 has an interior and an exterior. The crushing spindle 200 is elongated cylindrical, and a tool for crushing materials can be mounted on its outer surface. The crushing spindle 200 is rotatably disposed inside the frame 100. A first mounting cavity 210 is formed at one end of the crushing spindle 200. In this embodiment, the first mounting cavity 210 is located at the end of the crushing spindle 200 facing the frame 100. The first rotary drive mechanism 300 includes a first rotary drive device 310 and a first reducer 320. The first rotary drive device 310 is capable of providing torque. The first reducer 320 is embedded inside the first mounting cavity 210 of the crushing main shaft 200, and is drive-connected to the crushing main shaft 200, that is, the power output end of the first reducer 320 is drive-connected to the crushing main shaft 200. The first rotary drive device 310 is fixedly installed on the outside of the frame 100 at a position corresponding to the crushing main shaft 200, and is drive-connected to the first reducer 320, that is, the output end of the first rotary drive device 310 is drive-connected to the power input end of the first reducer 320. The first rotary drive device 310 can drive the crushing main shaft 200 to rotate relative to the frame 100 through the first reducer 320.

[0034] In this embodiment, a drive structure for a crushing spindle is provided with a first mounting cavity 210 at one end of the crushing spindle 200. The first reducer 320 of the first rotary drive mechanism 300 can be embedded inside the first mounting cavity 210 of the crushing spindle 200 and connected to the crushing spindle 200 for transmission. The first rotary drive device 310 of the first rotary drive mechanism 300 is located outside the frame 100. By adopting the above structure, the first reducer 320 is housed inside the crushing spindle 200. Compared with the traditional rotary drive mechanism of the crushing spindle, where both the drive motor and reducer are located outside the frame, the drive structure of this embodiment can reduce the size of the first rotary drive mechanism 300 located outside the frame 100, thereby reducing the space occupied by the first rotary drive mechanism 300.

[0035] To facilitate a better transmission connection between the first reducer 320 and the crushing main shaft 200, in some embodiments of this invention, the first reducer 320 is a planetary gear reducer. The end of the planetary gear reducer facing the first rotary drive device 310 has a power input end, and the outer casing of the planetary gear reducer serves as the power output end. The first rotary drive device 310 is connected to the power input end of the planetary gear reducer, and the outer casing of the planetary gear reducer is fixedly connected to the crushing main shaft 200. By adopting the above structure, the transmission connection between the first reducer 320 and the crushing main shaft 200 becomes simpler and more compact, making the assembly of the drive structure in this embodiment simpler and more convenient.

[0036] Reference Figure 4 and Figure 5 Because the crushing spindle 200 may encounter relatively hard solid waste during the crushing process, making it difficult to crush, the resistance borne by the crushing spindle 200 will increase significantly, leading to a substantial increase in the load on the first rotary drive device 310. To prevent the first rotary drive device 310 from being damaged due to excessive load, in some embodiments of this utility model, a first torque limiter 410 is provided between the first rotary drive device 310 and the first reducer 320. The first rotary drive device 310 is connected to the first reducer 320 through the first torque limiter 410. The aforementioned first torque limiter 410 is a friction torque limiter, specifically a wet torque limiter or a dry torque limiter. In this embodiment, the first rotary drive device 310 is connected to the first reducer 320 via the first torque limiter 410. When the resistance on the crushing spindle 200 increases significantly, the first torque limiter 410 can automatically disconnect the transmission connection between the first rotary drive device 310 and the first reducer 320, thereby disconnecting the output of the first rotary drive device 310. This gives the first rotary drive mechanism 300 in this embodiment good overload protection capability, avoiding damage to components due to sudden situations.

[0037] To prevent the first torque limiter 410 from being damaged by external impact, in some embodiments of this utility model, a first protective housing 330 is provided between the first rotary drive device 310 and the first reducer 320. The first protective housing 330 is fixedly connected to the first rotary drive device 310, and a first receiving cavity 331 is provided inside the first protective housing 330, with the first torque limiter 410 located inside the first receiving cavity 331. By housing the first torque limiter 410 inside the first protective housing 330, external objects can come into contact with and collide with the first torque limiter 410, thus effectively protecting the first torque limiter 410.

[0038] In some embodiments of this utility model, one end of the first protective housing 330 is fixedly connected to the first rotary drive device 310, and the other end of the first protective housing 330 is fixedly connected to one end of the first reducer 320. By fixing the first rotary drive device 310 and the first reducer 320 together through the first protective housing 330, the structure of the first rotary drive mechanism 300 in this embodiment can be made more compact, which is convenient for subsequent installation.

[0039] To facilitate the connection between the first rotary drive device 310 and the frame 100, in some embodiments of this invention, a mounting flange 340 is provided on the outer surface of the first protective housing 330. The frame 100 has a first clearance hole adapted to the first protective housing 330, through which the first protective housing 330 passes, and the mounting flange 340 is connected to the frame 100. By adopting the above structure, during assembly, it is only necessary to insert the first protective housing 330 into the first clearance hole and use bolts to connect the mounting flange 340 to the frame 100, thus achieving a fixed installation of the first rotary drive device 310 on the frame 100, making operation simpler and more convenient.

[0040] To simplify the structure of the first rotary drive device 310, in some embodiments of this invention, the first rotary drive device 310 is a motor, specifically a permanent magnet synchronous motor. By setting the first rotary drive device 310 as a permanent magnet synchronous motor, the structure of the first rotary drive device 310 can be made more compact, and at the same time, the first rotary drive device 310 can output greater torque to meet the production needs of enterprises.

[0041] It is understood that, in addition to being configured as an electric motor, the first rotary drive device 310 described above may also be a hydraulic motor in some embodiments of this utility model, depending on actual needs.

[0042] Reference Figures 1 to 7 See also Figure 6 and Figure 7To better drive the crushing spindle 200 to rotate, a drive structure for the crushing spindle in certain embodiments of this utility model includes a second rotary drive mechanism. The second rotary drive mechanism includes a second rotary drive device 510 and a second reducer 520. A second mounting cavity 220 is provided at the other end of the crushing spindle 200. The second reducer 520 is embedded inside the second mounting cavity 220 and is driveably connected to the crushing spindle 200. The second rotary drive device 510 is located outside the frame 100 and is driveably connected to the second reducer 520. In this embodiment, the second reducer 520 is a planetary gear reducer, and the second rotary drive device 510 is a permanent magnet synchronous motor. By adopting the above structure, the drive structure of the crushing spindle in this embodiment can use the first rotary drive mechanism 300 and the second rotary drive mechanism to work together to drive the crushing spindle 200 to rotate, thereby enabling the crushing spindle 200 to withstand a greater load.

[0043] It is understood that, in addition to being configured as an electric motor, the second rotary drive device 510 may also be a hydraulic motor in some embodiments of this utility model, depending on actual needs.

[0044] Reference Figure 6 and Figure 7 In some embodiments of this utility model, a second protective housing 530 is fixedly provided at one end of the second rotary drive device 510 facing the second reducer 520. A second receiving cavity 531 is provided inside the second protective housing 530. The frame 100 has a second clearance hole adapted to the second protective housing 530, and the second protective housing 530 passes through the second clearance hole. A second torque limiter 420 is provided between the second rotary drive device 510 and the second reducer 520. The second rotary drive device 510 is connected to the second reducer 520 via the second torque limiter 420, which is located inside the second receiving cavity 531. The aforementioned second torque limiter 420 is a friction torque limiter, specifically a wet torque limiter or a dry torque limiter. In this embodiment, the second rotary drive device 510 is connected to the second reducer 520 via the second torque limiter 420. When the resistance on the crushing spindle 200 increases significantly, the second torque limiter 420 can automatically disconnect the transmission connection between the second rotary drive device 510 and the second reducer 520, thereby protecting the second rotary drive device 510. This gives the second rotary drive mechanism in this embodiment good overload protection capability.

[0045] In some embodiments of this utility model, an elastic arm assembly 540 is provided between the second rotary drive device 510 and the frame 100. The second rotary drive device 510 is movably connected to the frame 100 through the elastic arm assembly 540. In this embodiment, the elastic arm assembly 540 includes an elastic arm and a connecting bolt. One end of the elastic arm is fixedly connected to the second rotary drive device 510, and the other end of the elastic arm is locked to the frame 100 by the connecting bolt. By adopting the above structure, the second rotary drive device 510 is elastically mounted on the frame 100, so that the second rotary drive mechanism can slide relative to the frame 100 along the axial direction of the crushing main shaft 200 to achieve axial compensation.

[0046] Reference Figures 1 to 7 A crusher according to certain embodiments of the second aspect of this utility model includes a crusher body, which adopts the aforementioned drive structure for a crushing main shaft. In this embodiment, the frame 100 is part of the crusher body. By adopting the aforementioned drive structure, the crusher of this embodiment can house the first reducer 320 of the first rotary drive mechanism 300 inside the crushing main shaft 200. Compared with the conventional crushing main shaft where the drive motor and reducer of the rotary drive mechanism are both located outside the frame, the crusher of this embodiment can reduce the size of the first rotary drive mechanism 300 located outside the frame 100, thereby reducing the overall size of the crusher, facilitating its transportation and installation, and reducing the floor space occupied by the crusher.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drive structure for a crushing spindle, characterized in that, include: Rack (100); A crushing spindle (200) is rotatably disposed inside the frame (100), and a first mounting cavity (210) is provided at one end of the crushing spindle (200); A first rotary drive mechanism (300) includes a first rotary drive device (310) and a first reducer (320). The first reducer (320) is embedded in the first mounting cavity (210) and is drivenly connected to the crushing main shaft (200). The first rotary drive device (310) is fixedly installed on the outside of the frame (100) at a position corresponding to the crushing main shaft (200). The first rotary drive device (310) is drivenly connected to the first reducer (320). The first rotary drive device (310) can drive the crushing spindle (200) to rotate relative to the frame (100) via the first reducer (320).

2. The drive structure for a crushing spindle according to claim 1, characterized in that: The first reducer (320) is a planetary gear reducer. The end of the planetary gear reducer facing the first rotary drive device (310) is provided with a power input end, and the outer housing of the planetary gear reducer is the power output end. The first rotary drive device (310) is connected to the power input end of the planetary gear reducer, and the housing of the planetary gear reducer is fixedly connected to the crushing spindle (200).

3. The drive structure for a crushing spindle according to claim 1, characterized in that: A first torque limiter (410) is provided between the first rotary drive device (310) and the first reducer (320), and the first rotary drive device (310) is connected to the first reducer (320) through the first torque limiter (410).

4. The drive structure for a crushing spindle according to claim 3, characterized in that: A first protective housing (330) is provided between the first rotary drive device (310) and the first reducer (320). The first protective housing (330) is fixedly connected to the first rotary drive device (310). A first receiving cavity (331) is provided inside the first protective housing (330), and the first torque limiter (410) is located inside the first receiving cavity (331).

5. The drive structure for a crushing spindle according to claim 4, characterized in that: The outer surface of the first protective housing (330) is provided with a mounting flange (340), and the frame (100) is provided with a first clearance hole that is adapted to the first protective housing (330). The first protective housing (330) is inserted into the first clearance hole, and the mounting flange (340) is connected to the frame (100).

6. The drive structure for a crushing spindle according to claim 1, characterized in that: The first rotary drive device (310) is an electric motor.

7. The drive structure for a crushing spindle according to claim 1, characterized in that: The system includes a second rotary drive mechanism, which comprises a second rotary drive unit (510) and a second reducer (520). The other end of the crushing spindle (200) is provided with a second mounting cavity (220), the second reducer (520) is embedded in the second mounting cavity (220), and the second reducer (520) is connected to the crushing spindle (200) in a driving connection. The second rotary drive device (510) is located outside the frame (100), and the second rotary drive device (510) is connected to the second reducer (520) in a driving connection.

8. The drive structure for a crushing spindle according to claim 7, characterized in that: The second rotary drive device (510) is fixedly provided with a second protective housing (530) at one end facing the second reducer (520). The second protective housing (530) is provided with a second receiving cavity (531). The frame (100) is provided with a second clearance hole that is adapted to the second protective housing (530). The second protective housing (530) is inserted into the second clearance hole. A second torque limiter (420) is provided between the second rotary drive device (510) and the second reducer (520). The second rotary drive device (510) is connected to the second reducer (520) through the second torque limiter (420). The second torque limiter (420) is located inside the second receiving cavity (531).

9. The drive structure for a crushing spindle according to claim 7, characterized in that: An elastic arm assembly (540) is provided between the second rotary drive device (510) and the frame (100), and the second rotary drive device (510) is movably connected to the frame (100) through the elastic arm assembly (540).

10. A crusher, characterized in that, It includes a crusher body, wherein the crusher body adopts a drive structure for a crushing spindle as described in any one of claims 1 to 9.

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