A roller-type double-layer crusher frame

By introducing a fixing mechanism and connecting sleeve into the frame of the roller double-layer crusher, the problem of inconvenient maintenance of the integral welded structure is solved, realizing convenient disassembly and stable connection, and improving maintenance efficiency.

CN224422970UActive Publication Date: 2026-06-30WEIHAI HENGLI WEAR-RESISTANT MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI HENGLI WEAR-RESISTANT MATERIALS CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing roller-type double-layer crusher frame is an integral welded structure, which requires disassembly of the entire unit for maintenance, making operation inconvenient.

Method used

The design employs a fixed mechanism and connecting sleeve, which, through the cooperation of limit pins and pull plates, enables convenient disassembly and connection of the upper and lower frames, while utilizing springs and pressure blocks to achieve a stable connection.

Benefits of technology

It enables convenient disassembly and connection of the upper and lower racks, facilitating maintenance and repair, and enhancing the stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of crusher frame, specifically a roller-type double-layer crusher frame, including an outer shell. A support rod is fixedly connected to the lower part of the outer shell, a drive mechanism is fixedly connected to the front side of the outer shell, a connecting sleeve is placed on the outer side of the outer shell, and fixing mechanisms are fixedly connected to both the front and rear sides of the connecting sleeve. A scraping mechanism is fixedly connected to the inner side of the outer shell. This utility model, by setting up the fixing mechanisms and connecting sleeve, facilitates the disassembly of the upper and lower frames. In use, the upper and lower frames are first fixed together using the fixing mechanisms. When it is necessary to disassemble the upper and lower frames, the limiting pin is pulled upwards, allowing the pull plate to be pulled outwards. By pulling the pull plate outwards, the insert pin is disengaged from the slot, thus separating the upper and lower frames. Disassembly is convenient, facilitating internal maintenance of the upper and lower frames.
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Description

Technical Field

[0001] This utility model belongs to the field of crusher frame technology, specifically a roller-type double-layer crusher frame. Background Technology

[0002] The roller crusher is a high-efficiency crushing equipment, mainly used for crushing medium-hard and low-hardness materials. It typically has a two-layer crushing structure: the upper crushing structure is used for coarse crushing, and the lower crushing structure is used for fine crushing, enabling integrated coarse and fine crushing of materials.

[0003] The frame of a roller crusher is its core supporting structure, responsible for fixing, bearing load, and transmitting power. Existing roller crusher frames are typically of a single welded structure, requiring disassembly for maintenance, which is inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a roller-type double-layer crusher frame that is easy to disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A roller-type double-layer crusher frame is provided, including a shell. A support rod is fixedly connected to the lower part of the shell. A drive mechanism is fixedly connected to the front side of the shell. A connecting sleeve is placed on the outer side of the shell. Fixing mechanisms are fixedly connected to both the front and rear sides of the connecting sleeve. A scraping mechanism is fixedly connected to the inner side of the shell. The fixing mechanism includes a fixing frame fixedly connected to the front and rear sides of the connecting sleeve. A pin is movably connected inside the fixing frame. A fixing plate is fixedly connected to the outer end of the pin. A pull plate is fixedly connected to the side of the fixing plate away from the pin. A pressure block is fixedly connected to the outer side of the pin. A first spring is fixedly connected between the fixing frame and the pressure block.

[0006] Optionally, the housing includes an upper frame, a lower frame is placed at the bottom of the upper frame, crushing rollers are movably connected to the front and rear sides of the upper and lower frames, a gear is fixedly connected to the right side of the outer side of the crushing roller, a second pulley is fixedly connected to the right end of the front crushing roller, protective shells are fixedly connected to the right sides of the upper and lower frames, a discharge shell is fixedly connected to the bottom of the lower frame, and slots are provided on the front and rear sides of the upper and lower frames.

[0007] Optionally, the drive mechanism includes a motor fixedly connected to the front side of the upper frame and the lower frame. The output end of the motor is fixedly connected to a rotating shaft. The right end of the rotating shaft is fixedly connected to a first pulley. A transmission belt is movably connected to the outer side of the first pulley. The transmission belt is movably connected to a second pulley.

[0008] Optionally, the connecting sleeve includes a sleeve body placed at the connection between the upper frame and the lower frame, with fixed posts fixedly connected to the front and rear sides of the top of the sleeve body, and limit pins movably connected inside the fixed posts.

[0009] Optionally, the support rod includes a rod body fixedly connected to the lower part of the discharge shell, and a fixing block is fixedly connected to the lower part of the rod body, and the fixing block has a fixing hole inside.

[0010] Optionally, the scraping mechanism includes a connecting plate fixedly connected to the inner sides of the upper and lower frames, a fixed cylinder fixedly connected to the inner side of the connecting plate, a top plate movably connected inside the fixed cylinder, and a second spring fixedly connected between the fixed cylinder and the top plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model, through the setting of a fixing mechanism and a connecting sleeve, facilitates the disassembly of the upper and lower frames. In use, pulling the limiting pin upwards allows the pull plate to be pulled outwards. Simultaneously pulling both pull plates outwards drives multiple fixing plates, causing the insert to retract into the sleeve body. This allows the sleeve body to fit over the outer side of the connection between the upper and lower frames. Once the sleeve body is fitted over the outer side of the connection, releasing the pull plate allows the insert to align with the slot. Under the action of the first spring, the pressure block causes the insert to be inserted into the slot. The upper and lower frames are connected by placing the upper frame in the slot. Then, the limit pin is released, allowing it to move downwards under gravity, thus limiting the pull plate and preventing it from moving outwards, thereby enhancing the stability of the fixation. When it is necessary to disassemble the upper and lower frames, simply pull the limit pin upwards again, allowing the pull plate to be pulled outwards. By pulling the pull plate outwards, the insert can be disengaged from the slot, thus separating the upper and lower frames. This facilitates disassembly and allows for convenient internal maintenance of the upper and lower frames. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3This is a cross-sectional view of the outer shell and a structural schematic diagram of the support rod of this utility model;

[0017] Figure 4 This is a schematic diagram of the upper and lower frames of this utility model;

[0018] Figure 5 This is a structural schematic diagram of the fixing mechanism and connecting sleeve of this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the scraping mechanism of this utility model.

[0020] In the diagram: 1. Outer shell; 101. Upper frame; 102. Crushing roller; 103. Gear; 104. Second pulley; 105. Protective shell; 106. Discharge shell; 107. Lower frame; 108. Slot; 2. Drive mechanism; 201. Motor; 202. Rotating shaft; 203. Transmission belt; 204. First pulley; 3. Fixing mechanism; 301. Fixing frame; 302. Pull plate; 303. Fixing plate; 304. Pressure block; 305. First spring; 306. Insert post; 4. Connecting sleeve; 401. Sleeve body; 402. Fixing post; 403. Limiting pin; 5. Support rod; 501. Rod body; 502. Fixing block; 503. Fixing hole; 6. Scraping mechanism; 601. Connecting plate; 602. Fixing cylinder; 603. Second spring; 604. Top plate. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Reference Figures 1 to 6 The present invention will now describe a roller-type double-layer crusher frame according to an embodiment of the present invention. A roller-type double-layer crusher frame includes a shell 1. A support rod 5 is fixedly connected to the lower part of the shell 1. A drive mechanism 2 is fixedly connected to the front side of the shell 1. A connecting sleeve 4 is placed on the outer side of the shell 1. Fixing mechanisms 3 are fixedly connected to both the front and rear sides of the connecting sleeve 4. A scraping mechanism 6 is fixedly connected to the inner side of the shell 1. The fixing mechanism 3 includes a fixing frame 301 fixedly connected to the front and rear sides of the connecting sleeve 4. A pin 306 is movably connected inside the fixing frame 301. The pin 306 can move inside the fixing frame 301, and its outer end is fixed. A fixing plate 303 is connected to the insertion post 306. A pull plate 302 is fixedly connected to the side of the fixing plate 303 away from the insertion post 306. The pull plate 302 is fixedly connected to multiple fixing plates 303. Pulling the pull plate 302 can drive multiple fixing plates 303. A pressure block 304 is fixedly connected to the outside of the insertion post 306. A first spring 305 is fixedly connected between the fixing frame 301 and the pressure block 304. In use, by pulling the limit pin 403 upward, the pull plate 302 can be pulled outward. By simultaneously pulling two pull plates 302 outward, multiple fixing plates 303 are driven to move the insertion post 306. The post 306 can retract into the sleeve 401, allowing the sleeve 401 to fit over the outer side of the connection between the upper frame 101 and the lower frame 107. After the sleeve 401 is fitted over the outer side of the connection between the upper frame 101 and the lower frame 107, the pull plate 302 is released, simultaneously aligning the post 306 with the slot 108. Under the action of the first spring 305, the pressure block 304 drives the post 306 to insert into the slot 108, thereby connecting the upper frame 101 and the lower frame 107 together. Then, the limiting pin 403 is released, allowing the limiting pin 406 to... 3. It can move downward under the action of gravity, thereby limiting the pull plate 302 and preventing it from moving outward, thus enhancing the stability of the fixation. When it is necessary to disassemble the upper frame 101 and the lower frame 107, simply pull the limit pin 403 upward again to allow the pull plate 302 to be pulled outward. By pulling the pull plate 302 outward, the insertion post 306 can be disengaged from the slot 108, thereby separating the upper frame 101 and the lower frame 107. Disassembly is convenient, which facilitates the internal maintenance of the upper frame 101 and the lower frame 107.

[0026] In another embodiment of this utility model, the outer casing 1 includes an upper frame 101, and a lower frame 107 is placed at the lower part of the upper frame 101. Crushing rollers 102 are movably connected to the front and rear sides of both the upper and lower frames 101 and 107. The diameters of the two upper crushing rollers 102 are smaller than the diameters of the two lower crushing rollers 102, such that the distance between the two upper crushing rollers 102 is the same as the distance between the two lower crushing rollers 102. This allows the two upper crushing rollers 102 to coarsely crush the raw material, while the two lower crushing rollers 102 can finely crush the raw material. A gear 103 is fixedly connected to the right side of the outer side of each crushing roller 102. The gears 103 on the front and rear crushing rollers 102 mesh with each other, so that the two crushing rollers 102 can rotate towards the middle at the same time, which facilitates the crushing of raw materials. The right end of the front crushing roller 102 is fixedly connected to the second pulley 104. The upper frame 101 and the lower frame 107 are both fixedly connected to the right side of the protective shell 105. The protective shell 105 is used to protect the gears 103. The lower part of the lower frame 107 is fixedly connected to the discharge shell 106. The discharge shell 106 is used to discharge the crushed raw materials. The front and rear sides of the upper frame 101 and the lower frame 107 are provided with slots 108. The slots 108 are used for the insertion of the insert 306.

[0027] In another embodiment of this utility model, the drive mechanism 2 includes a motor 201 fixedly connected to the front side of the upper frame 101 and the lower frame 107. The output end of the motor 201 is fixedly connected to a rotating shaft 202. The right end of the rotating shaft 202 is fixedly connected to a first pulley 204. A transmission belt 203 is movably connected to the outer side of the first pulley 204. The transmission belt 203 is movably connected to the second pulley 104. By starting the motor 201, the rotating shaft 202 can drive the first pulley 204 to rotate, which in turn drives the transmission belt 203 to drive the second pulley 104 to drive the front crushing roller 102 to rotate towards the center. This drives the front gear 103 to drive the rear gear 103 to drive the rear crushing roller 102 to rotate towards the center, thereby crushing the raw material between the front and rear crushing rollers 102.

[0028] In another embodiment of this utility model, the connecting sleeve 4 includes a sleeve body 401 placed at the connection between the upper frame 101 and the lower frame 107. The front and rear sides of the top of the sleeve body 401 are fixedly connected to the fixing posts 402. The fixing posts 402 are movably connected to the interior of the fixing posts 402. The fixing pins 403 can be raised and lowered inside the fixing posts 402. The fixing pins 403 are in contact with the pull plate 302 and are used to limit the pull plate 302. Pulling the fixing pins 403 upward so that the fixing pins 403 can leave the pull plate 302 can release the limitation on the pull plate 302.

[0029] In another embodiment of the present invention, the support rod 5 includes a rod body 501 fixedly connected to the lower part of the discharge shell 106. A fixing block 502 is fixedly connected to the lower part of the rod body 501. The fixing block 502 has a fixing hole 503 inside. The support rod 5 can be fixed on the plane through the fixing hole 503, which makes it easier to ensure the stability of the frame.

[0030] In another embodiment of this utility model, the scraping mechanism 6 includes a connecting plate 601 fixedly connected to the inner side of the upper frame 101 and the lower frame 107. A fixed cylinder 602 is fixedly connected to the inner side of the connecting plate 601. A top plate 604 is movably connected inside the fixed cylinder 602. The top plate 604 can move inside the fixed cylinder 602. A second spring 603 is fixedly connected between the fixed cylinder 602 and the top plate 604. The second spring 603 is in a compressed state, so that the top plate 604 can fit against the surface of the crushing roller 102. As the crushing roller 102 rotates, the top plate 604 can scrape off the raw material attached to the surface of the crushing roller 102. The scraped raw material will move downward under the action of gravity, which makes it easy to ensure that the raw material can be completely discharged.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller-type double-layer crusher frame, comprising a shell (1), characterized in that: A support rod (5) is fixedly connected to the lower part of the outer shell (1). A drive mechanism (2) is fixedly connected to the front side of the outer shell (1). A connecting sleeve (4) is placed on the outer side of the outer shell (1). A fixing mechanism (3) is fixedly connected to both the front and rear sides of the connecting sleeve (4). A scraping mechanism (6) is fixedly connected to the inner side of the outer shell (1). The fixing mechanism (3) includes a fixing frame (301) fixedly connected to the front and rear sides of the connecting sleeve (4). A plug (306) is movably connected inside the fixing frame (301). A fixing plate (303) is fixedly connected to the outer end of the plug (306). A pull plate (302) is fixedly connected to the side of the fixing plate (303) away from the plug (306). A pressure block (304) is fixedly connected to the outer side of the plug (306). A first spring (305) is fixedly connected between the fixing frame (301) and the pressure block (304).

2. The roller-type double-layer crusher frame as described in claim 1, characterized in that: The outer casing (1) includes an upper frame (101), a lower frame (107) is placed at the lower part of the upper frame (101), and crushing rollers (102) are movably connected to the front and rear sides of the upper frame (101) and the lower frame (107). A gear (103) is fixedly connected to the right side of the outer side of the crushing roller (102), and a second pulley (104) is fixedly connected to the right end of the front crushing roller (102). A protective shell (105) is fixedly connected to the right side of the upper frame (101) and the lower frame (107), and a discharge shell (106) is fixedly connected to the lower part of the lower frame (107). Slots (108) are provided on the front and rear sides of the upper frame (101) and the lower frame (107).

3. The roller-type double-layer crusher frame as described in claim 1, characterized in that: The drive mechanism (2) includes a motor (201) fixedly connected to the front side of the upper frame (101) and the lower frame (107). The output end of the motor (201) is fixedly connected to a rotating shaft (202). The right end of the rotating shaft (202) is fixedly connected to a first pulley (204). The outer side of the first pulley (204) is movably connected to a transmission belt (203). The transmission belt (203) is movably connected to a second pulley (104).

4. The roller-type double-layer crusher frame as described in claim 1, characterized in that: The connecting sleeve (4) includes a sleeve body (401) placed at the connection between the upper frame (101) and the lower frame (107). The front and rear sides of the top of the sleeve body (401) are fixedly connected with fixing posts (402), and the interior of the fixing posts (402) is movably connected with limit pins (403).

5. The roller-type double-layer crusher frame as described in claim 1, characterized in that: The support rod (5) includes a rod body (501) fixedly connected to the lower part of the discharge shell (106), and a fixing block (502) is fixedly connected to the lower part of the rod body (501). The fixing block (502) has a fixing hole (503) inside.

6. The roller-type double-layer crusher frame as described in claim 1, characterized in that: The scraping mechanism (6) includes a connecting plate (601) fixedly connected to the inner side of the upper frame (101) and the lower frame (107). A fixed cylinder (602) is fixedly connected to the inner side of the connecting plate (601). A top plate (604) is movably connected inside the fixed cylinder (602). A second spring (603) is fixedly connected between the fixed cylinder (602) and the top plate (604).