Fixture for testing performance of coal gangue regenerated mixture
By designing a clamping structure including a base plate, a sliding plate, a second connecting rod, and a hydraulic cylinder, the problem of unstable clamping in the performance testing of recycled coal gangue mixture was solved, achieving stable clamping and accurate testing of recycled coal gangue mixture, and adapting to recycled coal gangue mixture of different sizes.
Patent Information
- Application Number
- CN202520123993.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing performance testing fixtures for recycled coal gangue mixtures lack stability and are difficult to clamp and fix effectively, affecting the accuracy of the tests.
A clamping structure including a base plate, a sliding plate, a second connecting rod, and a hydraulic cylinder is designed. The hydraulic cylinder drives the connecting rod and the sliding plate to move, and with the help of the limiting block and the limiting groove, the coal gangue recycled mixture is stably clamped and fixed. The clamping plate spacing is adjusted by bolts to accommodate coal gangue of different sizes. The base plate is then fixed by the mounting block to prevent shaking.
It improves the clamping stability of recycled coal gangue mixtures, ensures the accuracy and reliability of testing, and is adaptable to recycled coal gangue mixtures of different sizes.
Smart Images

Figure CN223940902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, specifically a fixture for testing the performance of recycled coal gangue mixture. Background Technology
[0002] Coal gangue is a type of solid waste discharged during the tunneling, mining, and coal washing processes. It includes washed gangue from coal washing plants, hand-sorted gangue from coal production, coal and rock discharged during semi-coal roadway and rock roadway excavation, and a mixture of white gangue from outside the coal series that is piled up with coal gangue.
[0003] Due to its good strength and stability, coal gangue is currently playing a role in engineering applications. Specifically, it can be combined with cationic emulsified asphalt to form recycled coal gangue mixtures, which increases coal gangue consumption, reduces pollution, and ensures the long-term road performance. However, it is necessary to test the performance of recycled coal gangue mixtures. During the testing process, a highly stable clamp is needed to clamp and fix the recycled coal gangue mixture. Therefore, we propose a performance testing clamp for recycled coal gangue mixtures. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a performance testing fixture for recycled coal gangue mixture. The recycled coal gangue mixture is placed between a fixed component and a movable clamping plate. The position of the fixed component can be adjusted according to the size of the recycled coal gangue mixture. A hydraulic cylinder extends the piston rod, causing the right end of the second connecting rod to move downwards. Simultaneously, the right end of the first connecting rod moves downwards under the action of a fixed shaft, causing the left end of the second connecting rod to move to the left. Under the action of a limiting block and a limiting groove, the left end of the second connecting rod moves to the left, causing the sliding plate to move to the left. This leftward movement of the sliding plate then causes the movable clamping plate to move to the left, thus clamping and fixing the recycled coal gangue mixture through the fixed component and the leftward-moving movable clamping plate. The stable hydraulic structure improves the clamping stability of the recycled coal gangue mixture, effectively solving the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a performance testing fixture for recycled coal gangue mixture, comprising a base plate, a sliding plate, a second connecting rod, and a hydraulic cylinder;
[0006] Two fixing plates are installed on the upper surface of the base plate. Limiting grooves are formed inside the fixing plates. Limiting blocks are installed on both sides of the sliding plate, and the limiting blocks and limiting grooves are slidably connected. A connecting frame is installed at the left end of the sliding plate, and a movable clamping plate is installed at the outer end of the connecting frame. A fixing component is installed on the left side of the upper surface of the base plate. A first hinge bracket is installed at the right end of the sliding plate. The lower end of the second connecting rod is rotatably connected to the first hinge bracket via a first pin. Fixed shafts are fixedly installed on both sides of the upper end of the second connecting rod. A first connecting rod is rotatably installed at the outer end of the fixed shaft. The other end of the first connecting rod is rotatably connected to the outer side of the corresponding fixing plate via a second pin. A fixing bracket is installed on the upper surface of the base plate, and a second hinge bracket is installed at the upper end of the fixing bracket. A protrusion is installed on the upper surface of the hydraulic cylinder, and the protrusion is rotatably connected to the second hinge bracket via a third pin. A groove is formed in the middle of the upper end of the second connecting rod, and the piston rod end of the hydraulic cylinder is rotatably connected to the side wall of the groove via a fourth pin.
[0007] Furthermore, the fixing assembly includes bolts, a fixing clamp, and multiple threaded holes evenly spaced on the left side of the upper surface of the base plate. A support plate is mounted on the left side of the fixing clamp, and two through holes are formed on the support plate. Bolts are inserted into the through holes, and the lower ends of the bolts are threadedly connected to the corresponding threaded holes. By loosening the bolts, the support plate can be moved to the left or right, thus increasing or decreasing the distance between the fixing clamp and the moving clamp. The fixing clamp is then secured by the bolts, through holes, and corresponding threaded holes, allowing the distance between the fixing clamp and the moving clamp to be adjusted according to the size of the recycled coal gangue mixture.
[0008] Furthermore, the system also includes mounting holes and mounting blocks. Mounting blocks are installed at each of the four corners of the upper surface of the base plate, and mounting holes are provided on the mounting blocks. The base plate is fixed in place using the mounting blocks and mounting holes to prevent it from shaking during testing of the recycled coal gangue mixture, which would affect the accuracy of the test results.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this coal gangue recycled mixture performance testing fixture, the coal gangue recycled mixture is placed between a fixed component and a movable clamping plate. The position of the fixed component can be adjusted according to the size of the coal gangue recycled mixture. The hydraulic cylinder extends the piston rod, causing the right end of the second connecting rod to move downwards. Simultaneously, the right end of the first connecting rod moves downwards under the action of the fixed shaft, causing the left end of the second connecting rod to move to the left. Under the action of the limiting block and the limiting groove, the left end of the second connecting rod moves to the left, causing the sliding plate to move to the left. The leftward movement of the sliding plate causes the movable clamping plate to move to the left, thus clamping and fixing the coal gangue recycled mixture through the fixed component and the leftward-moving movable clamping plate. The stable hydraulic structure enhances the stability of clamping the coal gangue recycled mixture. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] In the diagram: 1. Base plate, 2. Mounting hole, 3. Mounting block, 4. Threaded hole, 5. Bolt, 6. Fixed clamping plate, 7. Moving clamping plate, 8. Fixed plate, 9. First connecting rod, 10. Slide plate, 11. First hinge bracket, 12. Second connecting rod, 13. Fixed shaft, 14. Protrusion, 15. Fixed bracket, 16. Hydraulic cylinder. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Please see Figure 1 This embodiment provides a technical solution: a performance testing fixture for recycled coal gangue mixture, including a base plate 1, a sliding plate 10, a second connecting rod 12, and a hydraulic cylinder 16;
[0014] Two fixing plates 8 are installed on the upper surface of the base plate 1. Limiting grooves are formed inside the fixing plates 8. Limiting blocks are installed on both sides of the slide plate 10, and the limiting blocks and limiting grooves are slidably connected. A connecting frame is installed at the left end of the slide plate 10, and a movable clamping plate 7 is installed at the outer end of the connecting frame. A fixing assembly is installed on the left side of the upper surface of the base plate 1. A first hinge bracket 11 is installed at the right end of the slide plate 10. The lower end of the second connecting rod 12 is rotatably connected to the first hinge bracket 11 via a first pin. Fixed shafts are fixedly installed on both sides of the upper end of the second connecting rod 12. 13. A first connecting rod 9 is rotatably mounted on the outer end of the fixed shaft 13. The other end of the first connecting rod 9 is rotatably connected to the outer side of the corresponding fixed plate 8 through a second pin. A fixed bracket 15 is mounted on the upper surface of the base plate 1. A second hinge bracket is mounted on the upper end of the fixed bracket 15. A protrusion 14 is mounted on the upper surface of the hydraulic cylinder 16. The protrusion 14 is rotatably connected to the second hinge bracket through a third pin. A groove is provided in the middle of the upper end of the second connecting rod 12. The piston rod end of the hydraulic cylinder 16 is rotatably connected to the side wall of the groove through a fourth pin.
[0015] In use, the recycled coal gangue mixture is placed between the fixed component and the movable clamping plate 7. The position of the fixed component can be adjusted according to the size of the recycled coal gangue mixture. The hydraulic cylinder 16 operates to extend the piston rod, which drives the right end of the second connecting rod 12 downward. At the same time, the right end of the first connecting rod 9 moves downward under the action of the fixed shaft 13, thereby causing the left end of the second connecting rod 12 to move to the left. Under the action of the limiting block and the limiting groove, the left end of the second connecting rod 12 moves to the left, which drives the sliding plate 10 to move to the left. The leftward movement of the sliding plate 10 drives the movable clamping plate 7 to move to the left. Thus, the recycled coal gangue mixture is clamped and fixed by the fixed component and the leftward-moving movable clamping plate 7. The stable hydraulic structure improves the stability of clamping the recycled coal gangue mixture.
[0016] The fixing assembly includes bolts 5, a fixing plate 6, and multiple threaded holes 4 evenly spaced on the left side of the upper surface of the base plate 1. A support plate is installed on the left side of the fixing plate 6, and two through holes are formed on the support plate. Bolts 5 pass through the through holes, and the lower ends of the bolts 5 are threadedly connected to the corresponding threaded holes 4. By opening the bolts 5, the support plate can be moved to the left or right, thereby increasing or decreasing the distance between the fixing plate 6 and the movable plate 7. The fixing plate 6 is then fixed by the bolts 5, the through holes, and the corresponding threaded holes 4, thus allowing the distance between the fixing plate 6 and the movable plate 7 to be adjusted according to the size of the recycled coal gangue mixture.
[0017] It also includes mounting holes 2 and mounting blocks 3. Mounting blocks 3 are installed at the four corners of the upper surface of the base plate 1, and mounting holes 2 are opened on the mounting blocks 3. The base plate 1 is installed and fixed by the mounting blocks 3 and mounting holes 2 to prevent the base plate 1 from shaking during the testing of the coal gangue recycled mixture, which would affect the accuracy of the coal gangue recycled mixture test.
[0018] The working principle of the performance testing fixture for recycled coal gangue mixture provided by this utility model is as follows: In use, the recycled coal gangue mixture is placed between the fixed component and the movable clamping plate 7. The position of the fixed component can be adjusted according to the size of the recycled coal gangue mixture. The piston rod is extended by the operation of the hydraulic cylinder 16. The extension of the piston rod drives the right end of the second connecting rod 12 to move downward. At the same time, the right end of the first connecting rod 9 moves downward under the action of the fixed shaft 13, thereby causing the left end of the second connecting rod 12 to move to the left. Under the action of the limiting block and the limiting groove, the left end of the second connecting rod 12 moves to the left, which drives the slide plate 10 to move to the left. The leftward movement of the slide plate 10 drives the movable clamping plate 7 to move to the left. Thus, the recycled coal gangue mixture is clamped and fixed by the fixed component and the leftward-moving movable clamping plate 7. The stable hydraulic structure improves the stability of clamping the recycled coal gangue mixture. By loosening bolt 5, the support plate can be moved left or right, increasing or decreasing the distance between the fixed clamping plate 6 and the movable clamping plate 7. The fixed clamping plate 6 is then secured using bolt 5, through holes, and corresponding threaded holes 4. This allows the distance between the fixed clamping plate 6 and the movable clamping plate 7 to be adjusted according to the size of the recycled coal gangue mixture. The base plate 1 is then fixed using mounting block 3 and mounting holes 2 to prevent it from shaking during testing, which would affect the accuracy of the recycled coal gangue mixture test.
[0019] It is worth noting that in this embodiment, the core chip of the external controller is an STC microcontroller, specifically the STC15W204S, while the hydraulic cylinder 16 can be freely configured according to the actual application scenario. The external controller controls the operation of the hydraulic cylinder 16 using methods commonly used in the prior art, and the content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0020] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A performance testing fixture for recycled coal gangue mixture, characterized in that: It includes a base plate (1), a sliding plate (10), a second connecting rod (12), and a hydraulic cylinder (16). Two fixing plates (8) are installed on the upper surface of the base plate (1). The fixing plates (8) have a limiting groove inside. Limiting blocks are installed on both sides of the slide plate (10). The limiting blocks and the limiting grooves are slidably connected. A connecting frame is installed on the left end of the slide plate (10). A movable clamping plate (7) is installed on the outer end of the connecting frame. A fixing component is installed on the left side of the upper surface of the base plate (1). A first hinge bracket (11) is installed on the right end of the slide plate (10). The lower end of the second connecting rod (12) is rotatably connected to the first hinge bracket (11) through a first pin. Fixing components are fixedly installed on both sides of the upper end of the second connecting rod (12). Shaft (13), the outer end of the fixed shaft (13) is rotatably mounted with a first connecting rod (9), the other end of the first connecting rod (9) is rotatably connected to the outer side of the corresponding fixed plate (8) through a second pin, a fixed bracket (15) is mounted on the upper surface of the base plate (1), a second hinge bracket is mounted on the upper end of the fixed bracket (15), a protrusion (14) is mounted on the upper surface of the hydraulic cylinder (16), the protrusion (14) is rotatably connected through a third pin and a second hinge bracket, a groove is provided in the middle of the upper end of the second connecting rod (12), and the piston rod end of the hydraulic cylinder (16) is rotatably connected to the side wall of the groove through a fourth pin.
2. The performance testing fixture for recycled coal gangue mixture according to claim 1, characterized in that: The fixing assembly includes bolts (5), fixing clamps (6) and multiple threaded holes (4) evenly opened on the left side of the upper surface of the base plate (1). A support plate is installed on the left side of the fixing clamps (6). Two through holes are opened on the support plate. Bolts (5) are inserted in the through holes. The lower end of the bolts (5) is threaded to the corresponding threaded holes (4).
3. The performance testing fixture for recycled coal gangue mixture according to claim 1, characterized in that: It also includes mounting holes (2) and mounting blocks (3). Mounting blocks (3) are installed at the four corners of the upper surface of the base plate (1), and mounting holes (2) are provided on the mounting blocks (3).