A highway construction waste recycling device

CN122955545APending Publication Date: 2026-10-23HENAN ZHONGPING JIAOKE RES & DESIGN INST CO LTD
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Patent Information

Application Number
CN202611263601.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-19
Publication Date
2026-10-23

AI Technical Summary

Technical Problem

[0003]在建筑废弃物资源化回收处理流程中,废弃混凝土块、碎石等固体废弃物的回收再利用是核心环节之一,而破碎作业则是实现这类废弃物资源化转化的首要步骤,当废弃混凝土块或碎石通过专用回收装置进行回收处理时,需先对其进行针对性破碎加工,以满足后续运输、存储及再利用的基本粒度要求,而现有的回收装置,在碎石破碎作业环节多采用冲击式、颚式等常规破碎结构,只能将大块废弃混凝土、碎石破碎为粒径相对均匀的中小颗粒,仅能实现简单的破碎效果,即将大块物料拆解为较小的块状或颗粒状物料,不具备精细研磨的功能

Benefits of technology

1、通过将初级破碎组件、精细研磨组件集成于同一破碎筒内部,进料、初碎、研磨以及筛分,废料由进料斗投入后,在设备内部依次完成多级处理,以形成粉末物料并暂存于储存箱,能够缩短加工工序,有效提升公路废旧混凝土、沥青碎石等废料资源化处理效率,适配施工现场就地回收作业需求。

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Abstract

The application relates to the technical field of highway construction, in particular to a highway construction waste recycling device, which comprises a recycling body, the recycling body comprises a crushing cylinder, a storage box, a crushing assembly and a grinding assembly, the crushing cylinder is installed on the storage box, the inside of the crushing cylinder is crushed and ground, can flow into the inside of the storage box to be collected, the crushing assembly and the grinding assembly are both installed in the crushing cylinder, are used for crushing and grinding the inside of the crushing cylinder, so that the materials are collected in powder form. The highway construction waste recycling device can shorten the processing procedure and effectively improve the resource processing efficiency of highway waste concrete, asphalt macadam and other waste materials by integrating the primary crushing assembly and the fine grinding assembly in the inside of the same crushing cylinder, feeding, primary crushing, grinding and screening, and sequentially completing multistage processing of the waste materials in the inside of the equipment after the waste materials are put into the feeding hopper, so that the powder materials are formed and temporarily stored in the storage box.
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Description

Technical Field

[0001] This invention relates to the field of highway construction technology, and specifically to a device for recycling highway construction waste. Background Technology

[0002] During the construction, reconstruction, expansion, and maintenance of road projects, a large amount of solid construction waste is continuously generated. This mainly includes waste asphalt mixtures, waste concrete blocks, gravel, slag, waste pipes, metal debris, and other mixed construction waste. Such road construction waste belongs to engineering solid waste and is a key target for treatment in the field of solid waste management.

[0003] In the process of recycling and processing construction waste, the recycling and reuse of solid waste such as waste concrete blocks and gravel is one of the core links. Crushing is the first step to realize the resource transformation of such waste. When waste concrete blocks or gravel are recycled through special recycling equipment, they need to be crushed first to meet the basic particle size requirements for subsequent transportation, storage and reuse. However, existing recycling equipment mostly uses conventional crushing structures such as impact crushers and jaw crushers in the crushing operation. These can only crush large pieces of waste concrete and gravel into small and medium-sized particles with relatively uniform particle size. They can only achieve a simple crushing effect, that is, break down large pieces of material into smaller blocks or granular materials, and do not have the function of fine grinding. Summary of the Invention

[0004] The present invention aims to provide a device for recycling highway construction waste, in order to solve the problem that the above-mentioned recycling devices can only achieve a simple crushing effect, that is, break down large pieces of material into smaller blocks or granules, and do not have the function of fine grinding.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A highway construction waste recycling device includes a recycling body, which comprises a crushing cylinder, a storage tank, a crushing component, and a grinding component. The crushing cylinder is installed on the storage tank. The material inside the crushing cylinder is crushed and ground, and can flow into the storage tank for collection. The crushing component and the grinding component are both installed inside the crushing cylinder and are used to crush and grind the material inside the crushing cylinder so that the material is collected in powder form.

[0006] Preferably, the crushing cylinder is vertically connected and includes an upper receiving cylinder and a lower receiving cylinder. The bottom of the lower receiving cylinder is provided with a base, and the top of the base is provided with a receiving groove. The bottom of the crushing cylinder is inserted into the receiving groove. The bottom surface of the crushing cylinder is provided with a material outlet, through which the ground material can be discharged. A filter screen is installed inside the material outlet for filtering and screening the material discharged through the material outlet. A discharge hopper is installed at the bottom of the storage box.

[0007] Preferably, the crushing assembly includes a drive shaft, a crushing blade, a bottom sleeve, and a bottom shaft. The drive shaft is located inside the crushing cylinder and is coaxial with the crushing cylinder. The crushing blade is installed on the outer wall of the drive shaft and is spiral-shaped. When the drive shaft rotates, it can drive the crushing blade to crush the material inside the crushing cylinder. The bottom sleeve is located at the bottom end of the drive shaft, and the bottom of the bottom sleeve is fixed to the top of the base. The top of the bottom shaft is fixed to the bottom of the drive shaft, and the outer wall of the bottom shaft is slidably connected to the inner wall of the bottom sleeve. A drive source is installed at the bottom of the storage box, and the output end of the drive source is connected to the bottom of the base.

[0008] Preferably, a limiting block is fixed to the outside of the bottom shaft, and a limiting groove adapted to the limiting block is provided on the bottom sleeve. The limiting block is slidably connected inside the limiting groove. A positioning block is fixed to the inner wall of the receiving groove. A positioning groove adapted to the positioning block is provided on the outer wall of the bottom end of the lower receiving cylinder. The positioning block is slidably connected inside the positioning groove. When the base rotates, the lower receiving cylinder can be rotated to generate centrifugal force through the cooperation of the positioning block and the positioning groove.

[0009] Preferably, the grinding assembly includes a guide ring fixed on the outer wall of the drive shaft, the top surface of the guide ring is arc-shaped, a support arm is fixed between the outer wall of the guide ring and the lower receiving cylinder, a bottom annular block is installed at the bottom of the guide ring, a plurality of bottom U-shaped plates are installed at the bottom of the bottom annular block, the plurality of bottom U-shaped plates are arranged in a ring at the bottom of the bottom annular block, and a grinding shaft is rotatably connected to the inner wall of the bottom U-shaped plates.

[0010] Preferably, the inner wall of the bottom annular block is fixed with a linkage block, and the surface of the bottom sleeve is provided with a linkage groove for the linkage block to slide, and the linkage groove is spiral.

[0011] Preferably, the outer wall of the lower receiving cylinder is fixed with a linkage shaft, and the inner wall of the storage box is provided with a slide rail for the linkage shaft to slide. The slide rail is wavy, and the linkage shaft is slidably connected to the inside of the slide rail.

[0012] Preferably, a support ring is fixed to the outer wall of the base, and an annular groove adapted to the support ring is opened on the inner wall of the storage box. The outer wall of the support ring is slidably connected to the groove wall of the annular groove. A T-shaped limiting block is fixed to the top of the bottom annular block, and a T-shaped limiting groove adapted to the T-shaped limiting block is opened at the bottom of the guide ring. The T-shaped limiting block is slidably connected inside the T-shaped limiting groove, which can limit the bottom annular block to maintain its stability.

[0013] Preferably, the top of the storage box is provided with a receiving hole that is adapted to the crushing cylinder. The outer wall of the upper receiving cylinder is fitted and fixed to the inner wall of the receiving hole. The receiving hole can limit the upper receiving cylinder, thereby maintaining the stability of the crushing cylinder.

[0014] The lower receiving cylinder has a coaxial limiting ring fixed at its top, and the upper receiving cylinder has an annular groove at its bottom that matches the limiting ring. Both the limiting ring and the annular groove are annular. The limiting ring is inserted into the annular groove. The limiting ring, in conjunction with the annular groove, can limit the position of the lower receiving cylinder, thereby maintaining the stability of the lower receiving cylinder.

[0015] The beneficial effects of this invention are as follows: 1. By integrating the primary crushing component and the fine grinding component into the same crushing cylinder, the waste material is fed into the hopper and undergoes multiple stages of processing inside the equipment to form powder material, which is then temporarily stored in the storage box. This shortens the processing steps and effectively improves the resource utilization efficiency of waste materials such as highway waste concrete and asphalt gravel, making it suitable for on-site recycling operations at construction sites.

[0016] 2. The base and lower receiving cylinder are rotated as a whole by the drive source. In conjunction with the wave-shaped slide rail and the linkage shaft, the lower receiving cylinder is driven to slide up and down periodically. At the same time, the drive shaft and the spiral crusher blades rotate and rise and fall. During the rotation, the spiral crusher blades not only achieve shearing and crushing, but the rising and falling action also continuously disturbs the material in the cylinder, causing the material to flow continuously downward and preventing large pieces of waste from accumulating and bridging above the crushing chamber. The guide ring rises and falls synchronously with the drive shaft, continuously guiding the material to the bottom grinding area, solving the problem of material accumulation that easily occurs in fixed crushing equipment.

[0017] 3. Through the cooperation of the spiral linkage groove and the linkage block, the rotation direction of the bottom ring block and the grinding shaft is opposite to the rotation direction of the base, forming a relative crushing and grinding condition between the moving and stationary parts; at the same time, the bottom ring block follows the lower receiving cylinder to rise and fall periodically, and the grinding shaft intermittently presses the material on the surface of the base. The material is fully crushed under the multiple actions of extrusion, shearing and grinding, which can greatly improve the grinding force and fully process hard road waste into powder. The finished powder has better particle size uniformity, ensuring that the recycled material meets the standards for use as raw material for recycled building materials.

[0018] 4. The continuous rotation of the base generates centrifugal force, which pushes the powder material on the base surface to converge towards the feed inlet on the cylinder wall, accelerating the movement of qualified powder towards the filter screen. The filter screen screens the output material in real time, and coarse particles that do not meet the particle size standard are intercepted and left on the base surface, and continue to be crushed by the grinding shaft to achieve material circulation and grinding. Qualified powder passes through the filter screen and enters the storage box for collection, thereby automatically realizing the classification and treatment of coarse and fine materials and avoiding large particles of waste material from being mixed into the finished powder. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the crushing cylinder of the present invention; Figure 3 This is a schematic diagram of the structure of the crushing component of the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-section of the crushing cylinder of the present invention; Figure 5 This is a schematic diagram of the grinding assembly of the present invention.

[0020] In the picture: 10. Recycling body; 101. Crushing cylinder; 1011. Upper receiving cylinder; 1012. Lower receiving cylinder; 1013. Limiting ring; 1014. Ring groove; 102. Base; 103. Receiving groove; 104. Material inlet; 105. Filter screen; 106. Storage box; 107. Receiving hole one; 108. Discharge hopper; 30. Crushing assembly; 31. Drive shaft; 32. Crushing blade; 33. Bottom sleeve; 34. 35. Bottom shaft; 36. Limiting block 1; 37. Limiting groove 1; 38. Positioning block; 39. Positioning groove; 30. Drive source; 310. Support ring; 311. Annular groove; 40. Grinding assembly; 41. Guide ring; 42. Bottom annular block; 43. Bottom U-shaped plate; 44. Grinding shaft; 45. Linkage block; 46. Linkage groove; 47. Linkage shaft; 48. Slide rail; 49. T-shaped limiting block; 410. T-shaped limiting groove. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] Reference Appendix Figures 1-5 As shown, a highway construction waste recycling device includes a recycling body 10, which includes a mounting frame, a feeding hopper, a crushing cylinder 101, a storage box 106, a crushing component 30, and a grinding component 40. The feeding hopper is mounted on the mounting frame and is funnel-shaped, with its bottom end corresponding to the top end of the crushing cylinder 101. Material can be poured into the interior of the crushing cylinder 101 through the feeding hopper. Both the crushing cylinder 101 and the storage box 106 are mounted on the mounting frame. The material inside the feeding hopper is poured into the interior of the crushing cylinder 101 for crushing and grinding, making the material into powder. The crushing component 30 and the grinding component 40 are both installed inside the crushing cylinder 101 for crushing and grinding the interior of the crushing cylinder 101. The storage box 106 can store the ground powdered material for collection.

[0023] The crushing cylinder 101 is vertical and extends vertically. The crushing cylinder 101 includes an upper receiving cylinder 1011 and a lower receiving cylinder 1012. The upper receiving cylinder 1011 and the lower receiving cylinder 1012 are coaxially arranged and have the same inner diameter.

[0024] A coaxial limiting ring 1013 is fixed to the top of the lower receiving cylinder 1012, and an annular groove 1014 adapted to the limiting ring 1013 is opened at the bottom of the upper receiving cylinder 1011. Both the limiting ring 1013 and the annular groove 1014 are annular. The limiting ring 1013 is inserted into the inside of the annular groove 1014. The limiting ring 1013 and the annular groove 1014 can limit the lower receiving cylinder 1012, thereby maintaining the stability of the lower receiving cylinder 1012.

[0025] The bottom of the lower receiving cylinder 1012 is provided with a base 102, and the top of the base 102 is provided with a receiving groove 103. The bottom of the crushing cylinder 101 is inserted into the receiving groove 103. The bottom surface of the crushing cylinder 101 is provided with a material outlet 104, through which the ground material can be discharged. A filter screen 105 is installed inside the material outlet 104 for filtering and screening the material discharged through the material outlet 104.

[0026] The top edge of the base 102 is sloped, which can guide the material filtered and screened by the filter screen 105 to fall into the inner bottom of the storage box 106 for collection.

[0027] The storage box 106 has a receiving hole 107 on the top that is adapted to the crushing cylinder 101. The outer wall of the upper receiving cylinder 1011 is fitted and fixed to the inner wall of the receiving hole 107. The receiving hole 107 can limit the upper receiving cylinder 1011, thereby maintaining the stability of the crushing cylinder 101.

[0028] A discharge hopper 108 is installed at the bottom of the storage box 106. A control valve is installed on the discharge hopper 108 to control the discharge of powdery materials accumulated at the bottom of the storage box 106.

[0029] After the material enters the crushing cylinder 101 through the feed hopper, it falls freely inside the crushing cylinder 101. The crushing component 30 first performs primary crushing on the material inside the crushing cylinder 101 to reduce the volume of the material inside the crushing cylinder 101. The material after primary crushing can fall onto the surface of the base 102. Then, the grinding component 40 grinds the material on the surface of the base 102 into powder. The powdered material can be filtered and screened through the filter screen 105 to enter the storage box 106 and be stored at the bottom of the storage box 106.

[0030] refer to Figure 3 , Figure 4 and Figure 5As shown, the crushing assembly 30 includes a drive shaft 31, a crushing blade 32, a bottom sleeve 33, and a bottom shaft 34. The drive shaft 31 is located inside the crushing cylinder 101 and is coaxial with the crushing cylinder 101. The crushing blade 32 is installed on the outer wall of the drive shaft 31 and is spiral in shape. When the drive shaft 31 rotates, it can drive the crushing blade 32 to crush the material inside the crushing cylinder 101.

[0031] The bottom sleeve 33 is located at the bottom end of the drive shaft 31. The bottom of the bottom sleeve 33 is fixed to the top of the base 102. The top of the bottom shaft 34 is fixed to the bottom of the drive shaft 31. The outer wall of the bottom shaft 34 is slidably connected to the inner wall of the bottom sleeve 33.

[0032] A limiting block 35 is fixed to the outside of the bottom shaft 34. A limiting groove 36 adapted to the limiting block 35 is provided on the bottom sleeve 33. The limiting block 35 is slidably connected inside the limiting groove 36. When the crushing cylinder 101 rotates, the base 102 is driven to rotate by the cooperation of the bottom shaft 34, the limiting block 35 and the limiting groove 36, so as to generate centrifugal force and throw the powdery material on the surface of the base 102 toward the inner wall of the storage box 106.

[0033] A drive source 39 is installed at the bottom of the storage box 106. The output end of the drive source 39 is fixed to the middle of the bottom wall of the base 102. The output end of the drive source 39 drives the base 102 to rotate. The base 102 and the lower receiving cylinder 1012 can rotate to generate centrifugal force.

[0034] The inner wall of the receiving groove 103 is fixed with a positioning block 37, and the bottom outer wall of the lower receiving cylinder 1012 is provided with a positioning groove 38 that is adapted to the positioning block 37. The positioning block 37 is slidably connected inside the positioning groove 38. When the base 102 rotates, the lower receiving cylinder 1012 can be driven to rotate and generate centrifugal force through the cooperation of the positioning block 37 and the positioning groove 38.

[0035] A support ring 310 is fixed to the outer wall of the base 102, and an annular groove 311 adapted to the support ring 310 is opened on the inner wall of the storage box 106. The outer wall of the support ring 310 is slidably connected to the groove wall of the annular groove 311.

[0036] refer to Figure 3 , Figure 4 and Figure 5 As shown, the grinding assembly 40 includes a guide ring 41 fixed on the outer wall of the drive shaft 31. The top surface of the guide ring 41 is arc-shaped. A support arm is fixed between the outer wall of the guide ring 41 and the lower receiving cylinder 1012, which can support the drive shaft 31 to maintain the stability of the drive shaft 31.

[0037] A bottom annular block 42 is installed at the bottom of the guide ring 41. The diameter of the guide ring 41 and the bottom annular block 42 is the same. There is a gap between the outer wall of the guide ring 41 and the bottom annular block 42 and the inner wall of the lower receiving cylinder 1012 so that the material after primary crushing can fall through the gap onto the surface of the base 102.

[0038] Multiple bottom U-shaped plates 43 are installed at the bottom of the bottom annular block 42. The multiple bottom U-shaped plates 43 are arranged in a ring at the bottom of the bottom annular block 42. A grinding shaft 44 is rotatably connected to the inner wall of the bottom U-shaped plate 43. When the bottom U-shaped plate 43 moves down, the bottom U-shaped plate 43 drives the grinding shaft 44 to squeeze the material on the surface of the base 102 to grind the material.

[0039] A linkage block 45 is fixed to the inner wall of the bottom annular block 42. A linkage groove 46 for sliding of the linkage block 45 is opened on the surface of the bottom sleeve 33. The linkage groove 46 is spiral. When the bottom annular block 42 moves down, the linkage block 45 slides from the top of the linkage groove 46 to the bottom of the linkage groove 46, thereby driving the bottom annular block 42 to rotate in the direction of rotation of the base 102, so as to grind the material on the surface of the base 102 through the grinding shaft 44.

[0040] A linkage shaft 47 is fixed to the outer wall of the lower receiving cylinder 1012. A slide rail 48 is provided on the inner wall of the storage box 106 for the linkage shaft 47 to slide. The slide rail 48 is wavy. The linkage shaft 47 is slidably connected to the inside of the slide rail 48. When the linkage shaft 47 slides along the extension trajectory of the slide rail 48, it can drive the lower receiving cylinder 1012 to slide up and down, so that the material inside the crushing cylinder 101 is in a flowing state.

[0041] A T-shaped limiting block 49 is fixed to the top of the bottom annular block 42, and a T-shaped limiting groove 410 adapted to the T-shaped limiting block 49 is opened at the bottom of the guide ring 41. The T-shaped limiting block 49 is slidably connected inside the T-shaped limiting groove 410, which can limit the bottom annular block 42 to maintain the stability of the bottom annular block 42.

[0042] Working principle: During use, the material is poured into the crushing cylinder 101 through the feed hopper. The controller connected to the drive source 39 turns on the drive source 39, and the output end of the drive source 39 drives the base 102 to rotate around its axis. The support ring 310 slides inside the annular groove 311. The base 102 drives the lower receiving cylinder 1012 to rotate axially through the cooperation of the positioning block 37 and the positioning groove 38. The limiting ring 1013 rotates synchronously inside the annular groove 1014. When the lower receiving cylinder 1012 rotates, the bottom sleeve 33 drives the drive shaft 31 to rotate through the bottom shaft 34, the limiting block 35, and the limiting groove 36. The lower receiving cylinder 1012 also drives the drive shaft 31 to rotate through the guide ring 41. At this time, the drive shaft 31 drives the crushing blade 32 to squeeze and crush the material inside the upper receiving cylinder 1011. The crushed material will fall below the guide ring 41 through the gap between the outer wall of the guide ring 41 and the cylinder wall of the crushing cylinder 101, that is, the material is located on the surface of the base 102.

[0043] As the lower receiving cylinder 1012 rotates, the linkage shaft 47 slides along the extended trajectory of the slide rail 48. Since the slide rail 48 has peaks and valleys, i.e., the slide rail 48 is closed, when the linkage shaft 47 slides from the peak to the valley of the slide rail 48, the linkage shaft 47 drives the lower receiving cylinder 1012 to move downwards. The lower receiving cylinder 1012 then drives the drive shaft 31 and the crushing blade 32 to move downwards via the guide ring 41. The limiting ring 1013 moves downwards inside the annular groove 1014. The drive shaft 31, in conjunction with the crushing blade 32, pushes and squeezes the material inside the crushing cylinder 101 to allow the material to flow. During the downward movement, the guide ring 41 drives the bottom annular block 42 to move downwards via the T-shaped limiting block 49. The grinding shaft 44 of the mold plate 43 presses the material on the surface of the base 102. Since the linkage groove 46 is spiral, when the linkage block 45 slides along the extension trajectory of the linkage groove 46, the rotation direction of the bottom annular block 42 is opposite to the rotation direction of the base 102. That is, the grinding shaft 44 can crush and grind the material on the surface of the base 102 to make the material on the surface of the base 102 into powder. As the base 102 rotates, the powdery material on the surface of the base 102 will flow to the filter screen 105 under the influence of centrifugal force, and then be screened by the filter screen 105 and discharged into the inner cavity of the storage box 106 for collection. When the linkage block 45 slides from the bottom of the linkage groove 46 to its peak, the above structure can be reset to perform the above operation again.

[0044] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A device for recycling highway construction waste, characterized in that: The system includes a recycling body (10), which includes a crushing cylinder (101), a storage tank (106), a crushing component (30), and a grinding component (40). The crushing cylinder (101) is installed on the storage tank (106). The inside of the crushing cylinder (101) is crushed and ground, and the material can flow into the inside of the storage tank (106) for collection. The crushing component (30) and the grinding component (40) are both installed inside the crushing cylinder (101) for crushing and grinding the inside of the crushing cylinder (101) so that the material is collected in powder form.

2. The highway construction waste recycling device according to claim 1, characterized in that, The crushing cylinder (101) is vertically connected and includes an upper receiving cylinder (1011) and a lower receiving cylinder (1012). The bottom of the lower receiving cylinder (1012) is provided with a base (102), and the top of the base (102) is provided with a receiving groove (103). The bottom of the crushing cylinder (101) is inserted into the inside of the receiving groove (103). The bottom surface of the crushing cylinder (101) is provided with a material outlet (104), and the ground material can be discharged through the material outlet (104). A filter screen (105) is installed inside the material outlet (104) for filtering and screening the material discharged through the material outlet (104). The bottom of the storage box (106) is provided with a discharge hopper (108).

3. The highway construction waste recycling device according to claim 2, characterized in that, The crushing assembly (30) includes a drive shaft (31), a crushing blade (32), a bottom sleeve (33), and a bottom shaft (34). The drive shaft (31) is located inside the crushing cylinder (101) and is coaxial with the crushing cylinder (101). The crushing blade (32) is installed on the outer wall of the drive shaft (31) and is spiral in shape. The bottom sleeve (33) is located at the bottom end of the drive shaft (31) and the bottom of the bottom sleeve (33) is fixed to the top of the base (102). The top of the bottom shaft (34) is fixed to the bottom of the drive shaft (31), and the outer wall of the bottom shaft (34) is slidably connected to the inner wall of the bottom sleeve (33). A drive source (39) is installed at the bottom of the storage box (106), and the output end of the drive source (39) is connected to the bottom of the base (102).

4. The highway construction waste recycling device according to claim 3, characterized in that, The bottom shaft (34) is fixed with a limiting block (35) on the outside. The bottom sleeve (33) is provided with a limiting groove (36) that is adapted to the limiting block (35). The limiting block (35) is slidably connected to the inside of the limiting groove (36). The inner wall of the receiving groove (103) is fixed with a positioning block (37). The bottom outer wall of the lower receiving cylinder (1012) is provided with a positioning groove (38) that is adapted to the positioning block (37). The positioning block (37) is slidably connected to the inside of the positioning groove (38).

5. The highway construction waste recycling device according to claim 4, characterized in that, The grinding assembly (40) includes a guide ring (41) fixed on the outer wall of the drive shaft (31). The top surface of the guide ring (41) is arc-shaped. A support arm is fixed between the outer wall of the guide ring (41) and the lower receiving cylinder (1012). A bottom annular block (42) is installed at the bottom of the guide ring (41). Multiple bottom U-shaped plates (43) are installed at the bottom of the bottom annular block (42). The multiple bottom U-shaped plates (43) are arranged in a ring at the bottom of the bottom annular block (42). A grinding shaft (44) is rotatably connected to the inner wall of the bottom U-shaped plate (43).

6. The highway construction waste recycling device according to claim 5, characterized in that, The inner wall of the bottom annular block (42) is fixed with a linkage block (45), and the surface of the bottom sleeve (33) is provided with a linkage groove (46) for the linkage block (45) to slide. The linkage groove (46) is spiral.

7. The highway construction waste recycling device according to claim 5, characterized in that, The outer wall of the lower receiving cylinder (1012) is fixed with a linkage shaft (47), and the inner wall of the storage box (106) is provided with a slide rail (48) for the linkage shaft (47) to slide. The slide rail (48) is wavy.

8. The highway construction waste recycling device according to claim 5, characterized in that, The outer wall of the base (102) is fixed with a support ring (310), and the inner wall of the storage box (106) is provided with an annular groove (311) that matches the support ring (310). The outer wall of the support ring (310) is slidably connected to the groove wall of the annular groove (311). The top of the bottom annular block (42) is fixed with a T-shaped limiting block (49), and the bottom of the guide ring (41) is provided with a T-shaped limiting groove (410) that matches the T-shaped limiting block (49). The T-shaped limiting block (49) is slidably connected inside the T-shaped limiting groove (410).

9. The highway construction waste recycling device according to claim 2, characterized in that, The storage box (106) has a receiving hole (107) on the top that is compatible with the crushing cylinder (101), and the outer wall of the upper receiving cylinder (1011) is attached and fixed to the inner wall of the receiving hole (107).

10. The highway construction waste recycling device according to claim 2, characterized in that, The lower receiving cylinder (1012) has a coaxial limiting ring (1013) fixed at the top, and the upper receiving cylinder (1011) has an annular groove (1014) adapted to the limiting ring (1013) at the bottom. Both the limiting ring (1013) and the annular groove (1014) are annular, and the limiting ring (1013) is inserted into the inside of the annular groove (1014).