Regenerated cement stabilized macadam structure
By designing limiting devices and fixing components for the recycled cement stabilized crushed stone structure, the problem of inconvenient hammer replacement in multi-hammer cement pavement crushers was solved, enabling rapid disassembly and installation of hammers and improving equipment maintenance efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINZHONGJI ROAD & BRIDGE ENG CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-28
AI Technical Summary
The existing multi-hammer cement pavement crushers have inconvenient hammer replacement, and the hammers are frequently worn, deformed, and broken, leading to maintenance difficulties.
Design a recycled cement stabilized crushed stone structure, including a crushed stone body, a limiting device and a fixing component. Through the cooperation of the limiting device and the fixing component, the hammer head and the hammer body can be quickly disassembled and installed.
This enables quick replacement of hammerheads, reduces maintenance time and labor intensity, and extends the service life of the equipment.
Smart Images

Figure CN224173176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing equipment, and in particular to a structure for stabilizing crushed stone for recycled cement. Background Technology
[0002] Cement: A powdered hydraulic inorganic binder that forms a paste when mixed with water. It can harden in air or water and can firmly bind materials such as sand and stone together.
[0003] When a large area of old cement-concrete pavement is damaged and has lost its overall load-bearing capacity, and its function cannot be restored through local excavation, grouting, or other treatment methods, a multi-hammer cement pavement breaker will be used to break more than 75% of the old cement-concrete slabs into smaller particles after treating the severely damaged base layer. The particles should not exceed 37.5 cm at the bottom, 22.5 cm in the middle, and 7.5 cm on the surface. After compaction, these particles will be used as the new pavement structure, base layer, or subbase layer.
[0004] However, over time, the hammers of a multi-hammer cement road breaker are constantly subjected to impacts and wear from cement road materials, resulting in surface wear, deformation, and breakage. When replacing the hammer body, the bolts of the hammer body are removed, and the old hammer body is lifted out by a crane for overall replacement.
[0005] Therefore, it is necessary to provide a recycled cement-stabilized crushed stone structure to solve the above-mentioned technical problems. Utility Model Content
[0006] This invention provides a recycled cement-stabilized crushed stone structure, which solves the problem of the inconvenience of replacing the hammers of multi-hammer cement pavement crushers.
[0007] To solve the above-mentioned technical problems, this utility model provides a recycled cement stabilized crushed stone structure, including: a crushed stone body, a limiting device and a fixing component;
[0008] The main body of the crushing stone includes a hammer body and a hammer head, with the hammer head disposed at one end of the hammer body;
[0009] The limiting device includes a positioning groove, a positioning block, multiple safety grooves, multiple mounting blocks, multiple limiting grooves, multiple limiting blocks, a connecting block, and a through groove. The positioning groove is formed inside the hammer body, the positioning block is slidably connected to the inside of the positioning groove, multiple limiting grooves are formed inside the positioning block, multiple positioning blocks are slidably connected to the inside of the multiple limiting grooves, the connecting block is fixedly connected to one end of the positioning block, multiple limiting grooves are formed inside the hammer body, multiple limiting blocks are slidably connected to the inside of the multiple limiting grooves, and multiple through grooves are respectively provided on one side of the multiple limiting grooves.
[0010] The fastener is disposed inside the connecting block and is used to limit the position of the connecting block.
[0011] Preferably, one end of each of the plurality of limiting blocks is fixedly connected to both sides of the positioning block.
[0012] Preferably, the plurality of through slots are formed inside the hammer body, and one side of each of the plurality of through slots is connected to one end of the plurality of limiting slots.
[0013] Preferably, one end of each of the plurality of mounting blocks is fixedly connected to one side of the connecting block.
[0014] Preferably, the fastener includes a bolt and a threaded hole, the threaded hole being formed inside the connecting block, and the bolt being threaded into the inside of the threaded hole.
[0015] Preferably, the connecting block is provided with a fixing device inside, the fixing device including a fixing groove and a fixing sleeve, the fixing groove being formed inside the connecting block, and the fixing sleeve being slidably connected to the inside of the fixing groove.
[0016] Preferably, the fixing component has a stabilizing component inside, the stabilizing component including multiple slots and multiple blocks, the multiple slots are all opened inside the fixing component, and the multiple blocks are slidably connected to the interior of the multiple slots.
[0017] Compared with related technologies, the recycled cement stabilized crushed stone structure provided by this utility model has the following beneficial effects:
[0018] This utility model provides a structure for stabilizing crushed stone with recycled cement. After limiting the hammer head and hammer body through a limiting device, the limiting device is further limited by a fixing component. This allows workers to easily and quickly replace the hammer head by simply disassembling it. Attached Figure Description
[0019] Figure 1A schematic diagram of the first embodiment of a recycled cement stabilized crushed stone structure provided by this utility model;
[0020] Figure 2 for Figure 1 The diagram shows the structure of the hammer.
[0021] Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the hammer body shown;
[0022] Figure 4 A schematic diagram of the second embodiment of a recycled cement stabilized crushed stone structure provided by this utility model;
[0023] Figure 5 for Figure 4 The diagram shows the structure of the fixing groove.
[0024] Figure 6 for Figure 4 The enlarged schematic diagram of part A is shown.
[0025] The following are the labels in the diagram: 1. Hammer body, 2. Hammer head, 3. Limiting device, 31. Positioning groove, 32. Positioning block, 33. Mounting groove, 34. Mounting block, 35. Limiting groove, 36. Limiting block, 37. Connecting block, 38. Through groove, 4. Fixing component, 5. Fixing device, 51. Fixing groove, 52. Fixing sleeve, 6. Stabilizing component, 61. Slot, 62. Slot block. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example
[0027] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the first embodiment of a recycled cement stabilized crushed stone structure provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the hammer. Figure 3 for Figure 1 The diagram shows a cross-sectional view of the hammer body. A recycled cement-stabilized crushed stone structure includes: a crushed stone body, a limiting device 3, and a fixing element 4;
[0028] The main body of the crusher includes a hammer body 1 and a hammer head 2, wherein the hammer head 2 is disposed at one end of the hammer body 1;
[0029] The limiting device 3 includes a positioning groove 31, a positioning block 32, multiple safety ring grooves 33, multiple mounting blocks 34, multiple limiting grooves 35, multiple limiting blocks 36, a connecting block 37, and a through groove 38. The positioning groove 31 is opened inside the hammer body 1. The positioning block 32 is slidably connected to the inside of the positioning groove 31. The multiple limiting grooves 35 are all opened inside the positioning block 32. The multiple positioning blocks 32 are slidably connected to the inside of the multiple limiting grooves 35 respectively. The connecting block 37 is fixedly connected to one end of the positioning block 32. The multiple limiting grooves 35 are all opened inside the hammer body 1. The multiple limiting blocks 36 are slidably connected to the inside of the multiple limiting grooves 35 respectively. The multiple through grooves 38 are respectively disposed on one side of the multiple limiting grooves 35.
[0030] The fastener 4 is disposed inside the connecting block 37, and the fastener 4 is used to limit the position of the connecting block 37.
[0031] Multiple limiting blocks 36 cooperate with multiple limiting grooves 35 to initially limit the distance between the hammer body 1 and the hammer head 2 after the limiting blocks 36 move to a suitable position inside the limiting grooves 35.
[0032] One end of each of the limiting blocks 36 is fixedly connected to both sides of the positioning block 32.
[0033] Multiple through slots 38 are formed inside the hammer body 1, and one side of each of the multiple through slots 38 is connected to one end of each of the multiple limiting slots 35.
[0034] One end of each of the mounting blocks 34 is fixedly connected to one side of the connecting block 37.
[0035] The connecting block 37 has a concave handle inside, which is used to move multiple mounting blocks 34 to one side at the same time when the connecting block 37 is pulled to one side.
[0036] The fastener 4 includes a bolt and a threaded hole. The threaded hole is located inside the connecting block 37, and the bolt is threaded into the inside of the threaded hole.
[0037] The hammer body 1 has a threaded hole inside, which is used to fix the connecting block 37 to the hammer body 1 after the bolt is installed into the threaded hole.
[0038] The working principle of the recycled cement stabilized crushed stone structure provided by this utility model is as follows:
[0039] When replacing the hammer head 2, after removing the fixing part 4, the connecting block 37 is pulled to one side, causing the two mounting blocks 34 to move to one side inside the two mounting slots 33 respectively. After they separate, the hammer head 2 is moved to one side, thereby causing the positioning block 32 to move to one side inside the positioning slot 31. This causes the multiple limiting blocks 36 to move to one side inside the multiple limiting slots 35 respectively, and after they enter the multiple through slots 38 respectively, the hammer head 2 is moved downwards, causing the positioning block 32 to separate from the positioning slot 31, and then the hammer head 2 can be removed.
[0040] When installing the hammer head 2, after the positioning block 32 of the hammer head 2 is installed into the positioning groove 31, it is moved to one side, so that the multiple limiting blocks 36 move to one side into the multiple limiting grooves 35 in the multiple through grooves 38 respectively. Then, the two mounting blocks 34 are inserted into the two mounting grooves 33 respectively, and the fixing part 4 is installed.
[0041] Compared with related technologies, the recycled cement stabilized crushed stone structure provided by this utility model has the following beneficial effects:
[0042] This utility model provides a structure for stabilizing crushed stone with recycled cement. After limiting the hammer head 2 and the hammer body 1 through the limiting device 3, the limiting device 3 is further limited by the fixing part 4. This allows the workers to simply disassemble the hammer head 2 for replacement when changing it, thus making it convenient and quick to replace the hammer head 2. Example
[0043] Please refer to the following: Figure 4 , Figure 5 and Figure 6 Based on the recycled cement stabilized crushed stone structure provided in the first embodiment of this application, the second embodiment of this application proposes another recycled cement stabilized crushed stone structure. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0044] Specifically, the second embodiment of this application provides a different type of recycled cement stabilized crushed stone structure in that the connecting block 37 of the recycled cement stabilized crushed stone structure is provided with a fixing device 5 inside. The fixing device 5 includes a fixing groove 51 and a fixing sleeve 52. The fixing groove 51 is opened inside the connecting block 37, and the fixing sleeve 52 is slidably connected to the inside of the fixing groove 51.
[0045] The fixing groove 51 is a polygonal groove, and the fixing sleeve 52 is a polygonal rubber block that is adapted to the fixing groove 51, and has a groove inside that is adapted to the bolt.
[0046] The fixing component 4 is provided with a stabilizing component 6 inside. The stabilizing component 6 includes multiple slots 61 and multiple blocks 62. The multiple slots 61 are all opened inside the fixing component 4, and the multiple blocks 62 are slidably connected to the interior of the multiple slots 61.
[0047] The bolt in the fastener 4 has multiple slots 61 inside, and one side of each of the multiple locking blocks 62 is fixedly connected to the surface of the inner wall of the fixing sleeve 52, which is used to limit the bolt after the multiple locking blocks 62 are inserted into the multiple slots 61 respectively.
[0048] The working principle of the recycled cement stabilized crushed stone structure provided by this utility model is as follows:
[0049] In use, after the fastener 4 is installed, the fastening sleeve 52 is inserted into the inside of the fastening slot 51, so that the multiple locking blocks 62 are inserted into the inside of the multiple locking slots 61 respectively. When the fastening sleeve 52 moves to the appropriate position, the fastener 4 can be limited by the fastening sleeve 52.
[0050] Compared with related technologies, the recycled cement stabilized crushed stone structure provided by this utility model has the following beneficial effects:
[0051] This utility model provides a recycled cement stabilized crushed stone structure. The fixing device 5, together with the stabilizing component 6, limits the fixing part 4, thereby preventing the vibration generated by the hammer 2 during crushing from loosening the fixing part 4.
[0052] The above description is merely an embodiment of this utility model and does 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 recycled cement-stabilized crushed stone structure, characterized in that, include: Crushed stone body, limiting device and fixing parts; The main body of the crushing stone includes a hammer body and a hammer head, with the hammer head disposed at one end of the hammer body; The limiting device includes a positioning groove, a positioning block, multiple safety grooves, multiple mounting blocks, multiple limiting grooves, multiple limiting blocks, a connecting block, and a through groove. The positioning groove is formed inside the hammer body, the positioning block is slidably connected to the inside of the positioning groove, multiple limiting grooves are formed inside the positioning block, multiple positioning blocks are slidably connected to the inside of the multiple limiting grooves, the connecting block is fixedly connected to one end of the positioning block, multiple limiting grooves are formed inside the hammer body, multiple limiting blocks are slidably connected to the inside of the multiple limiting grooves, and multiple through grooves are respectively provided on one side of the multiple limiting grooves. The fastener is disposed inside the connecting block and is used to limit the position of the connecting block.
2. The recycled cement stabilized crushed stone structure according to claim 1, characterized in that, One end of each of the limiting blocks is fixedly connected to both sides of the positioning block.
3. The recycled cement stabilized crushed stone structure according to claim 2, characterized in that, Multiple through slots are formed inside the hammer body, and one side of each of the multiple through slots is connected to one end of each of the multiple limiting slots.
4. The recycled cement stabilized crushed stone structure according to claim 2, characterized in that, One end of each of the mounting blocks is fixedly connected to one side of the connecting block.
5. The recycled cement stabilized crushed stone structure according to claim 1, characterized in that, The fastener includes a bolt and a threaded hole, the threaded hole being formed inside the connecting block, and the bolt being threaded into the inside of the threaded hole.
6. The recycled cement stabilized crushed stone structure according to claim 1, characterized in that, The connecting block is provided with a fixing device inside. The fixing device includes a fixing groove and a fixing sleeve. The fixing groove is opened inside the connecting block, and the fixing sleeve is slidably connected to the inside of the fixing groove.
7. The recycled cement stabilized crushed stone structure according to claim 1, characterized in that, The fixing component has a stabilizing component inside, which includes multiple slots and multiple blocks. The multiple slots are all opened inside the fixing component, and the multiple blocks are slidably connected to the interior of the multiple slots.