Asphalt pavement recycling and crushing device
By using a suspended sealing plate and an adjustable discharge hopper, the problems of dust splashing out of the feed hopper and the fixed angle of the discharge hopper are solved, achieving both sealing and adjustment functions and improving the effectiveness of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUTAI HIGHWAY ENG CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-03
AI Technical Summary
The existing asphalt pavement recycling crushing device has an open feed hopper, which causes dust and particles to splash out, and the discharge hopper has a fixed tilt angle that cannot be adjusted, affecting the performance.
The design incorporates a suspended sealing plate and an adjustable discharge hopper. The suspended sealing plate is suspended on the protective shell of the device via a suspension support rod for sealing, and the discharge hopper's angle is adjustable via an angle adjustment rod and an adjustment linkage rod.
It effectively prevents dust and particulate matter from splashing out, and the angle of the discharge hopper can be adjusted according to the position of the conveyor belt, improving the ease of use and efficiency of the device.
Smart Images

Figure CN224451312U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of crushing devices, and in particular relates to an asphalt pavement recycling crushing device. Background Technology
[0002] Major and medium-scale repairs of asphalt pavements refer to the regular maintenance and upkeep of asphalt pavements to extend their service life. Major repairs include pavement overhaul and reinforcement, which usually involves a complete repair or replacement of the pavement. Waste asphalt pavement materials need to be crushed by a crushing device and then mixed with recycling agents, new asphalt, and new aggregates in a certain proportion to form a new mixture for paving new pavements.
[0003] Based on the above, the inventors have discovered the following shortcomings in existing asphalt pavement recycling and crushing devices:
[0004] 1. The feed hopper of the device is open, which makes it easy for dust and particles to splash out during crushing. It is not convenient to install sealing measures on the device to seal the opening of the feed hopper to prevent splashing.
[0005] 2. The discharge hopper of the device has a fixed tilt angle and cannot be adjusted according to the position of the conveyor belt. It is inconvenient to add angle adjustment measures to the device so that the discharge hopper can be adjusted according to the conveyor belt. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides an asphalt pavement recycling and crushing device. This addresses the issues of existing devices having an open feed hopper, which leads to dust and particulate matter easily splashing out during crushing, making it inconvenient to install sealing measures to prevent splashing at the feed hopper opening; and the fixed tilt angle of the discharge hopper, which cannot be adjusted according to the conveyor belt position, making it inconvenient to install angle adjustment measures to allow the discharge hopper to be adjusted according to the conveyor belt.
[0007] The purpose and effectiveness of this utility model asphalt pavement recycling and crushing device are achieved through the following specific technical means:
[0008] An asphalt pavement recycling and crushing device includes a device body; the device body is provided with a protective shell, and a feed hopper is provided at the top rear of the protective shell. Insertion holes are provided on the left and right sides of the rear rear wall of the protective shell. A suspension bearing rod is inserted into the insertion hole of the protective shell and limited by a locking nut. A threaded post is provided in the middle of the top end face of the suspension bearing rod. A suspension ring is provided at the lower end of the suspension bearing rod. A suspension sealing plate is installed at the lower end between the suspension bearing rods. Suspension rings are provided at both the left and right ends of the top end face of the suspension sealing plate.
[0009] Furthermore, an adjustable discharge hopper is mounted on the semi-circular head at the upper end of the adjusting linkage rod via a fixed shaft. A pair of semi-circular head plates with left and right through holes are provided in the middle of the rear end face of the bottom end face of the adjustable discharge hopper. A semi-circular head block with left and right through holes is provided in the middle of the front end face of the bottom end face of the adjustable discharge hopper. The semi-circular head block of the adjustable discharge hopper is mounted on the semi-circular head plate of the protective shell of the device via a fixed shaft.
[0010] Furthermore, an adjusting linkage rod is installed inside the limiting groove of the angle adjusting rod via a fixed shaft, and both ends of the adjusting linkage rod are provided with semi-circular heads with left and right through holes.
[0011] Furthermore, an angle adjusting rod is threadedly installed on the inner circumference of the angle adjusting cylinder, and the outer circumference of the angle adjusting rod is threaded. A fixing hole that passes through from left to right is opened at the upper end of the angle adjusting rod, and a limiting groove that passes through from front to back is opened in the middle of the top end face of the angle adjusting rod.
[0012] Furthermore, the lower outer circumference of the angle adjusting cylinder is provided with a bearing ring groove, and the upper outer circumference of the angle adjusting cylinder is provided with a regular hexagonal structure.
[0013] Furthermore, an angle adjusting cylinder is installed inside the bearing ring groove of the protective shell of the device via a bearing, and the inner circumference of the angle adjusting cylinder is threaded.
[0014] Furthermore, a pair of semi-circular head plates with left and right through holes are provided at the bottom center of the front end face of the protective shell of the device, and a through hole is provided at the rear center of the bottom wall of the protective shell of the device, and a bearing ring groove is provided on the inner circumference of the upper part of the through hole of the protective shell of the device.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The suspension sealing plate is conveniently hung on the protective shell of the device by the suspension support rod and shakes. The suspension sealing plate can close the feed hopper of the protective shell of the device by gravity. This solves the problem that the feed hopper of the device is open, which makes it easy for dust and particles to splash out during crushing. It is also inconvenient to install sealing measures on the device to seal the opening of the feed hopper to prevent splashing.
[0017] The adjustable discharge hopper is mounted on the protective shell of the device via a fixed shaft and can be rotated. This allows the adjustable discharge hopper to be tilted according to the position of the conveyor belt, solving the problem that the tilt angle of the discharge hopper is fixed and cannot be adjusted according to the position of the conveyor belt, and that it is inconvenient to add angle adjustment measures to the device so that the discharge hopper can be adjusted according to the position of the conveyor belt. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model.
[0020] Figure 3 This is a disassembled structural diagram of the present invention.
[0021] Figure 4 This is a cross-sectional view of the assembly of the protective shell and the suspension support rod of the present invention.
[0022] Figure 5 This is a cross-sectional view of the assembly of the protective shell and the angle adjustment cylinder of the present invention.
[0023] Figure 6 This is a cross-sectional schematic diagram of the suspension bearing rod of this utility model.
[0024] In the diagram: 1. Device body; 2. Device protective shell; 3. Suspension support rod; 4. Suspension sealing plate; 5. Angle adjustment cylinder; 6. Angle adjustment rod; 7. Adjustment linkage rod; 8. Adjustable discharge hopper. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0026] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:
[0027] This utility model provides an asphalt pavement recycling and crushing device, including a device body 1; the device body 1 is provided with a protective shell 2, which facilitates the bearing and protection of various components, enabling the waste asphalt pavement to be crushed and recycled. A feed hopper is provided at the top rear of the protective shell 2, facilitating the entry of waste asphalt pavement material into the device body 1 for crushing. Insertion holes are provided on both the left and right sides of the rear rear side of the top wall of the protective shell 2, allowing for the insertion of a suspended bearing rod 3. The suspended bearing rod 3 is inserted into the insertion hole of the protective shell 2 and secured by a locking nut, facilitating the bearing of a suspended sealing plate 4. A threaded post is provided in the middle of the top end face of the suspended bearing rod 3, facilitating the installation of the locking nut and preventing the suspended bearing rod 3 from falling out of the insertion hole of the protective shell 2. A suspension ring is provided at the lower end of the suspended bearing rod 3, facilitating the hanging and swaying of the suspended sealing plate 4. A suspended sealing plate 4 is installed at the lower end between 3, which allows the suspended sealing plate 4 to close the feed hopper of the protective shell 2 by gravity. Suspension rings are provided on both the left and right ends of the top end face of the suspended sealing plate 4 to facilitate the installation of the suspension bearing rod 3 and the swinging switch of the suspended sealing plate 4. A pair of semi-circular head plates with left and right through holes are provided in the middle of the bottom of the front face of the protective shell 2, which facilitates the installation of the adjustable discharge hopper 8 through the fixed shaft. A through hole is provided in the middle of the rear of the bottom wall of the protective shell 2 to facilitate the passage of the angle adjustment rod 6. A bearing ring groove is provided on the inner circumference of the upper part of the through hole of the protective shell 2 to facilitate the installation of the angle adjustment cylinder 5 through the bearing. The angle adjustment cylinder 5 is installed in the bearing ring groove of the protective shell 2 through the bearing, which facilitates the rotation of the angle adjustment cylinder 5 through the bearing. The inner circumference of the angle adjustment cylinder 5 is threaded to facilitate the installation of the angle adjustment rod 6 through the thread.
[0028] The angle adjusting cylinder 5 has a bearing groove on its lower outer circumference for easy installation via a bearing. The upper outer circumference of the angle adjusting cylinder 5 has a regular hexagonal structure for easy rotation via a tool. An angle adjusting rod 6 is threadedly installed on the inner circumference of the angle adjusting cylinder 5, facilitating its lifting and lowering via thread engagement. The outer circumference of the angle adjusting rod 6 also has threads for easy installation of the angle adjusting cylinder 5 via threads. The upper end of the angle adjusting rod 6 has a through-hole for easy installation of the adjusting linkage rod 7 via a fixed shaft. The top end face of the angle adjusting rod 6 has a through-groove groove for easy insertion of the adjusting linkage rod 7 into the groove. The adjusting linkage rod 7 is installed inside the groove of the angle adjusting rod 6 via a fixed shaft, facilitating its movement through the fixed shaft. The adjustable hopper 8 is mounted on the upper semi-circular head of the adjusting linkage 7 via a fixed shaft. Both ends of the linkage 7 have semi-circular heads with left and right through holes, facilitating its rotation. The adjustable hopper 8 is rotated by the linkage 7 via a fixed shaft. A pair of semi-circular head plates with left and right through holes are located at the center of the rear end of the bottom face of the adjustable hopper 8, facilitating its rotation via the fixed shaft. A semi-circular head block with left and right through holes is located at the center of the front end of the bottom face of the adjustable hopper 8, facilitating its rotation on the semi-circular head plate of the protective shell 2 via a fixed shaft. The semi-circular head block of the adjustable hopper 8 is mounted on the semi-circular head plate of the protective shell 2 via a fixed shaft, allowing the adjustable hopper 8 to rotate upwards or downwards on the protective shell 2.
[0029] The specific usage and function of this embodiment are as follows:
[0030] In this utility model, such as Figure 1 As shown, the bottom front end of the adjustable hopper 8 is the conveyor belt cutting section, as... Figure 2As shown, the suspended sealing plate 4 is normally closed. When the device body 1 is in use, waste asphalt pavement material is placed inside the feed hopper of the device protective shell 2. Under the action of its own weight, the waste asphalt pavement material slides down the inclined feed hopper and contacts the suspended sealing plate 4. The waste asphalt pavement material pushes the suspended sealing plate 4 open, allowing the waste asphalt pavement material to enter the device body 1 for crushing and regeneration. At the same time, after the waste asphalt pavement material falls into the device body 1, the suspended sealing plate 4 loses its force and returns to its original position under its own weight. Thus, the suspended sealing plate 4 seals the feed hopper opening, solving the problem that the open feed hopper of the device easily causes dust and particles to splash out during crushing. The crushed waste asphalt pavement material falls into the adjustable discharge hopper 8 and slides down the inclined surface of the hopper onto the conveyor belt, thus completing the asphalt pavement recycling crushing operation. When the inclination angle of the adjustable discharge hopper 8 is adjusted according to the position of the conveyor belt, the angle adjusting cylinder 5 is rotated by a tool to engage with the angle adjusting rod 6 through the threaded engagement, causing the angle adjusting rod 6 to rise or fall. The angle adjusting rod 6 drives the lower end of the adjusting linkage rod 7 to rise or fall synchronously, and the upper end of the adjusting linkage rod 7 drives the adjustable discharge hopper 8 to flip up or down, thereby realizing the adjustment of the inclination angle of the adjustable discharge hopper 8. This solves the problem that the inclination angle of the discharge hopper of the device is fixed and cannot be adjusted according to the position of the conveyor belt.
[0031] Example 2: Unlike Example 1, the regular hexagonal structure of the angle adjustment cylinder 5 can also be set as a regular heptagonal structure. This makes the angle adjustment cylinder 5 require a special tool that works with the regular heptagonal structure to rotate, thus preventing non-staff members from rotating and adjusting the angle adjustment cylinder 5.
[0032] Example 3: Unlike Example 1, the top end face of the suspension support rod 3 can also be set as a frosted surface, thereby increasing the friction between the top end face of the suspension support rod 3 and the locking nut, and preventing the locking nut from rotating and loosening on the suspension support rod 3.
Claims
1. An asphalt pavement recycling and crushing device, characterized in that: The device includes a device body (1); the device body (1) is provided with a device protective shell (2), a feeding hopper is provided at the top rear of the device protective shell (2), and insertion holes are provided on the left and right sides of the top wall of the device protective shell (2) through the top and bottom. A suspension bearing rod (3) is inserted into the insertion hole of the device protective shell (2) and limited by a locking nut. A threaded column is provided in the middle of the top end face of the suspension bearing rod (3), and a suspension ring is provided at the lower end of the suspension bearing rod (3). A suspension sealing plate (4) is installed at the lower end between the suspension bearing rods (3), and suspension rings are provided at both the left and right ends of the top end face of the suspension sealing plate (4).
2. The asphalt pavement recycling and crushing device according to claim 1, characterized in that: The protective shell (2) of the device has a pair of semi-circular head plates with left and right through holes at the bottom center of the front end face. The protective shell (2) has a through hole at the rear center of the bottom wall, and a bearing ring groove is provided on the inner circumference of the upper part of the through hole.
3. The asphalt pavement recycling and crushing device according to claim 2, characterized in that: An angle adjusting cylinder (5) is installed inside the bearing ring groove of the protective shell (2) of the device through a bearing. The angle adjusting cylinder (5) has a threaded opening on its inner circumference.
4. The asphalt pavement recycling and crushing device according to claim 3, characterized in that: The lower outer circumference of the angle adjusting cylinder (5) is provided with a bearing ring groove, and the upper outer circumference of the angle adjusting cylinder (5) is provided with a regular hexagonal structure.
5. The asphalt pavement recycling and crushing device of claim 4, wherein: An angle adjusting rod (6) is installed on the inner circumference of the angle adjusting cylinder (5) by a thread. The outer circumference of the angle adjusting rod (6) is threaded. The upper end of the angle adjusting rod (6) is provided with a fixing hole that runs through from left to right. The top end face of the angle adjusting rod (6) is provided with a limiting groove that runs through from front to back.
6. The asphalt pavement recycling and crushing device according to claim 5, characterized in that: An adjusting rod (6) is fitted with an adjusting linkage rod (7) inside its limiting groove via a fixed shaft. Both ends of the adjusting linkage rod (7) are provided with semi-circular heads with left and right through holes.
7. The asphalt pavement recycling and crushing apparatus of claim 6, wherein: An adjustable discharge hopper (8) is mounted on the semi-circular head at the upper end of the adjusting linkage rod (7) via a fixed shaft. A pair of semi-circular head plates with left and right through holes are provided in the middle of the rear end of the bottom end face of the adjustable discharge hopper (8). A semi-circular head block with left and right through holes is provided in the middle of the front end of the bottom end face of the adjustable discharge hopper (8). The semi-circular head block of the adjustable discharge hopper (8) is mounted on the semi-circular head plate of the protective shell (2) of the device via a fixed shaft.