Concrete and stone crushing device and concrete production equipment
By introducing a combination device of screen and crushing rollers in the crusher, the problem of excessive size of concrete crushed materials in the prior art is solved, efficient crushing of concrete and stones is achieved, and the secondary utilization rate is improved.
Patent Information
- Application Number
- CN202422139923.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The concrete crushers produced by existing crushers have large sizes and cannot be directly used in the subsequent stirring process, resulting in the inability to reuse the concrete crusher and reduce the reuse rate of cement.
A crushing device including a jaw crusher, a screen and a crushing roller is adopted. After preliminary screening through the screen, a suitable size of material is fed between the crushing rollers, and the material is further crushed by the crushing material bump of the crushing roller to achieve a smaller particle size for easier secondary utilization.
The particle size of crushed concrete and stone crushed materials has been further reduced, and can be directly used in subsequent road raw materials, improving the secondary utilization rate of concrete.
Smart Images
Figure CN223249492U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of material crushing, and more specifically, relates to a concrete and stone crushing device. The utility model also relates to concrete production equipment. Background Art
[0002] When a concrete pavement that has been in disrepair for a long time needs to be renovated, it needs to be crushed first. In the existing technology, the concrete pavement is generally crushed in the following two ways: one is to use an excavator equipped with a breaker hammer to crush the concrete pavement, and the other is to use a crushing roller to crush the concrete pavement. The above crushing methods have a weak crushing effect on the concrete pavement and can only crush the concrete into larger pieces. It cannot be used in subsequent concrete pouring, which reduces the reuse rate of cement. In order to solve the above problems, crushing equipment is generally installed at the construction site. Among various equipment, jaw crushers are widely used in the crushing of road concrete and stones due to their advantages such as low noise, less dust, energy saving, simplicity and reliability.
[0003] However, the inventors discovered during the actual on-site operation that, in actual use, the jaw crusher can only squeeze concrete or stones by the mutual movement of the two jaw plates, resulting in the crushed materials discharged from the jaw crusher discharge port having a large diameter and cannot be directly used in the subsequent mixing process. Instead, they can only be filled in the earthwork as the base of the concrete pavement, resulting in a considerable portion of the concrete crushed materials being unable to be used on-site, which has an adverse effect on the secondary utilization of the concrete crushed materials and urgently needs improvement. Utility Model Content
[0004] The purpose of the utility model is to provide a concrete and stone crushing device to solve the technical problem that the concrete crushed materials produced by the existing crusher cannot be directly reused.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a concrete and stone crushing device, comprising:
[0006] a first crushing mechanism comprising a jaw crusher body, wherein the jaw crusher body comprises a fixed jaw plate and a movable jaw plate;
[0007] A filtering mechanism, comprising a screen connected to the movable jaw plate, the screen having a mesh surface parallel to the horizontal direction, and located below the discharge port of the jaw crusher body;
[0008] The second crushing mechanism includes a first crushing roller and a second crushing roller arranged side by side along a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction, a crushing gap being formed between the first crushing roller and the second crushing roller, the crushing gap being located directly below the discharge port of the jaw crusher body, a plurality of first crushing protrusions being evenly arranged on the periphery of the first crushing roller, a plurality of second crushing protrusions being evenly arranged on the periphery of the second crushing roller, the first crushing protrusions and the second crushing protrusions being alternately arranged along the axial direction of the first crushing roller, and the sum of the protrusion height of any one of the first crushing protrusions and the protrusion height of any one of the second crushing protrusions being not less than the width of the crushing gap.
[0009] In a possible implementation, the filtering mechanism further includes a fixed frame, the fixed frame is used to support the screen, and the top of the fixed frame is fixedly connected to the back side of the movable jaw plate.
[0010] In a possible implementation, the screen is movably provided on the fixed frame, and the moving direction of the screen is perpendicular to the width direction of the jaw plate.
[0011] In a possible implementation, the jaw crusher body further includes a first protection box, and the movable jaw plate, the fixed jaw plate and the screen are all arranged in the first protection box;
[0012] The second crushing mechanism also includes a second protective box, in which the first crushing roller and the second crushing roller are both arranged. The top of the second protective box is connected to the first protective box, and the top of the second protective box is provided with a bolt member detachably connected to the first protective box.
[0013] In a possible implementation, the outer side of the second protection box is rotatably connected to running wheels.
[0014] In a possible implementation, the running wheels are movably provided at the bottom of the side of the second protective box in an up-down direction, and the running wheels have a retracted state away from the ground and a supporting state in contact with the ground.
[0015] In a possible implementation, a mounting plate and an elevator are provided between the running wheel and the second protective box, the elevator is connected to the bottom of the side of the second protective box through the mounting plate, and the running wheel is provided at the telescopic end of the elevator.
[0016] In one possible implementation, the elevator includes a worm, a lead screw and a worm wheel, the worm wheel is coaxially sleeved on the outer periphery of the lead screw, and the inner wall of the worm wheel is adapted to the outer peripheral thread of the lead screw, the worm is meshed with the outer periphery of the worm wheel, the axial direction of the worm is perpendicular to the axial direction of the worm wheel, the worm can drive the worm wheel to rotate, the lead screw can move up and down with the rotation of the worm wheel, and the walking wheel is arranged at the bottom end of the lead screw.
[0017] Compared with the existing technology, the beneficial effect of the concrete and stone crushing device provided by the utility model is that: after the large pieces of material are initially crushed by the jaw crusher, they fall into the screen through the discharge port, and the screen can vibrate with the vibration of the movable jaw plate, thereby performing preliminary screening of the crushed materials. Materials of suitable size fall between the first crushing roller and the second crushing roller through the screen, and the first crushing roller and the second crushing roller can further crush the materials by driving the relative movement of the first crushing protrusion and the second crushing protrusion, so that the particle size of the materials is further reduced, so that the crushed materials can be mixed with subsequent road raw materials, thereby solving the technical problem that the existing concrete and stones cannot be directly reused due to the large size of the crushed materials.
[0018] Another object of the present invention is to provide a concrete production device, comprising the above-mentioned concrete and stone crushing device.
[0019] Compared with the prior art, the concrete production equipment in the present invention has all the benefits of the above-mentioned concrete and stone crushing device, which will not be described here. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of the concrete and stone crushing device provided by the utility model;
[0022] Figure 2 This is a schematic diagram of the positional relationship between the filter mechanism and the movable jaw plate in the concrete and stone crushing device provided by the present invention;
[0023] Figure 3 This is a schematic structural diagram of the second crushing mechanism in the concrete and stone crushing device of the present invention;
[0024] Figure 4This is a schematic diagram of the connection relationship between the traveling wheels and the second protection box in the concrete and stone crushing device of the present invention.
[0025] In the picture:
[0026] 1. First crushing mechanism; 11. Jaw crusher body; 110. Discharge port; 111. Fixed jaw plate; 112. Movable jaw plate; 12. First protective box;
[0027] 2. Filter mechanism; 21. Screen; 22. Fixing frame;
[0028] 3. Second crushing mechanism; 31. First crushing roller; 311. First crushing protrusion; 32. Second crushing roller; 321. Second crushing protrusion; 33. Second protective box;
[0029] 4. Travel wheels; 41. Mounting plate; 42. Lifter. DETAILED DESCRIPTION
[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.
[0031] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", and "back" appear to indicate orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.
[0032] Furthermore, in the description of this utility model, unless otherwise expressly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a removable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0034] Please also refer to Figures 1 to 4The concrete and stone crushing device provided by the present invention is now described. The concrete and stone crushing device includes a first crushing mechanism 1, a filtering mechanism 2, and a second crushing mechanism 3. The first crushing mechanism 1 includes a jaw crusher body 11, and the jaw crusher body 11 includes a fixed jaw plate 111 and a movable jaw plate 112; the filtering mechanism 2 includes a screen 21, and the screen 21 is connected to the movable jaw plate 112. The mesh surface of the screen 21 is parallel to the horizontal direction, and the screen 21 is located below the discharge port 110 of the jaw crusher body 11; the second crushing mechanism 3 includes a first crushing roller 31 and a second crushing roller 32 arranged side by side along a second horizontal direction, and the second horizontal direction is perpendicular to the first crushing roller 31. In a horizontal direction, a crushing gap is formed between the first crushing roller 31 and the second crushing roller 32, and the crushing gap is located directly below the discharge port 110 of the jaw crusher body 11. A plurality of first crushing protrusions 311 are evenly arranged on the periphery of the first crushing roller 31, and a plurality of second crushing protrusions 321 are evenly arranged on the periphery of the second crushing roller 32. The first crushing protrusions 311 and the second crushing protrusions 321 are alternately arranged along the axial direction of the first crushing roller 31, and the sum of the protrusion height of any first crushing protrusion 311 and the protrusion height of any second crushing protrusion 321 is not less than the width of the crushing gap.
[0035] Compared with the prior art, after the bulk material is initially crushed by the jaw crusher, it falls into the screen 21 through the discharge port 110. The screen 21 in this embodiment can vibrate with the vibration of the movable jaw plate 112, and then perform preliminary screening of the crushed material during the shaking process. The material of appropriate size passes through the screen 21 and falls between the first crushing roller 31 and the second crushing roller 32. The first crushing roller 31 and the second crushing roller 32 can further crush the material by driving the relative movement of the first crushing protrusion 311 and the second crushing protrusion 321, so that the particle size of the material is further reduced, so that the crushed material can be mixed with subsequent road raw materials, thereby solving the technical problem that the existing concrete and stone cannot be directly reused due to the large size of the crushed material.
[0036] As a feasible embodiment, the filtering mechanism 2 further includes a fixed frame 22, which is used to carry the screen 21, and the top of the fixed frame 22 is fixedly connected to the back of the movable jaw plate 112. With this arrangement, the present embodiment can install the screen 21 through the fixed frame 22, making the replacement of the screen 21 more portable. Of course, based on the same idea, a feasible embodiment is proposed. Specifically, the screen 21 is movably provided on the fixed frame 22, and the moving direction of the screen 21 is perpendicular to the width direction of the jaw plate, so that it can be pulled out from the fixed frame 22 along the moving direction of the screen 21, so that the large pieces of crushed material in the screen 21 can be reloaded into the jaw crusher body 11.
[0037] Based on the above embodiments, further, in order to prevent the material from falling from the connection between the two crushing mechanisms during the movement between the two crushing mechanisms, a feasible implementation method is proposed, the jaw crusher body 11 also includes a first protective box 12, the movable jaw plate 112, the fixed jaw plate 111 and the screen 21 are all arranged in the first protective box 12; the second crushing mechanism 3 also includes a second protective box 33, the first crushing roller 31 and the second crushing roller 32 are both arranged in the second protective box 33, the top of the second protective box 33 is connected to the first protective box 12, and the top of the second protective box 33 is provided with a bolt member detachably connected to the first protective box 12; compared with the prior art, this embodiment can form a stable connection between the first protective box 12 and the second protective box 33 through the bolt member, thereby preventing the two crushing mechanisms from being dislocated due to vibration in the crushing mechanism.
[0038] In addition, considering that the placement of the crushing equipment will change as the road is paved during use, a feasible implementation method is proposed. Specifically, the outer side of the second protective box 33 is rotatably connected to a walking wheel 4 to adjust the specific position of the concrete and stone crushing device in the utility model according to usage requirements.
[0039] Furthermore, a feasible embodiment is proposed in which the running wheels 4 are movably disposed in the vertical direction at the bottom of the side of the second protective box 33, and the running wheels 4 have a stowed state away from the ground and a supported state in contact with the ground. In this way, when the running wheels 4 are stowed, the concrete and stone crushing device of the present invention can be placed more stably on the work surface. Moreover, by lowering the running wheels 4, the position of the entire crushing device on the work surface can be easily adjusted, making the concrete and stone crushing device of the present invention more compatible with actual production needs.
[0040] As a feasible embodiment, in order to drive the running wheel 4 to move up and down, a mounting plate 41 and a lift 42 are provided between the running wheel 4 and the second protective box 33. The lift 42 is connected to the bottom of the side of the second protective box 33 through the mounting plate 41, and the running wheel 4 is provided at the telescopic end of the lift 42. In this way, the present embodiment can drive the running wheel 4 to move up and down through the lift 42, thereby facilitating the adjustment of the upper and lower heights of the running wheel 4 to change the state of the running wheel 4 according to the use requirements. Preferably, in the above embodiment, the lift 42 includes a worm, a lead screw and a worm wheel. The worm wheel is coaxially sleeved on the periphery of the lead screw, and the inner wall of the worm wheel is adapted to the outer peripheral thread of the lead screw. The worm and the outer peripheral meshing of the worm wheel are adapted. The axial direction of the worm is perpendicular to the axial direction of the worm wheel. The worm can drive the worm wheel to rotate, and the lead screw can move up and down with the rotation of the worm wheel. The running wheel 4 is provided at the bottom end of the lead screw. With this arrangement, when driving this embodiment, the worm gear is rotated by rotating the worm, and the worm gear can then drive the screw to extend and retract by its own threaded fit with the screw, thereby driving the travel wheel 4 to move up and down. Moreover, after the travel wheel 4 is moved to the appropriate position, the self-locking feature between the worm gear, worm gear and screw prevents the travel wheel 4 from retracting, thereby ensuring the stability of the travel wheel 4 in supporting the concrete and stone crushing device of the utility model.
[0041] Based on the same inventive concept, the present invention also provides a concrete production device, which includes the concrete and stone crushing device mentioned above.
[0042] Compared with the prior art, the concrete production equipment in the present invention has all the benefits of the above-mentioned concrete and stone crushing device, which will not be described here.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A concrete and stone crushing device, characterized in that: include: A first crushing mechanism (1) includes a jaw crusher body (11), wherein the jaw crusher body (11) includes a fixed jaw plate (111) and a movable jaw plate (112); A filtering mechanism (2) comprising a screen (21), the screen (21) being connected to the movable jaw plate (112), the mesh surface of the screen (21) being parallel to the horizontal direction, and the screen (21) being located below the discharge port (110) of the jaw crusher body (11); The second crushing mechanism (3) comprises a first crushing roller (31) and a second crushing roller (32) arranged side by side along a second horizontal direction, the second horizontal direction being perpendicular to the first horizontal direction, a crushing gap being formed between the first crushing roller (31) and the second crushing roller (32), the crushing gap being located directly below the discharge port (110) of the jaw crusher body (11), a plurality of first crushing protrusions (311) being evenly arranged on the periphery of the first crushing roller (31), a plurality of second crushing protrusions (321) being evenly arranged on the periphery of the second crushing roller (32), the first crushing protrusions (311) and the second crushing protrusions (321) being alternately arranged along the axial direction of the first crushing roller (31), and the sum of the protrusion height of any one of the first crushing protrusions (311) and the protrusion height of any one of the second crushing protrusions (321) being not less than the width of the crushing gap.
2. The concrete and stone crushing device according to claim 1, characterized in that: The filtering mechanism (2) further comprises a fixed frame (22), the fixed frame (22) being used to carry the screen (21), and the top of the fixed frame (22) being fixedly connected to the back side of the movable jaw plate (112).
3. The concrete and stone crushing device according to claim 2, characterized in that: The screen (21) is movably arranged on the fixed frame (22), and the moving direction of the screen (21) is perpendicular to the width direction of the jaw plate.
4. The concrete and stone crushing device according to claim 1, characterized in that: The jaw crusher body (11) further comprises a first protection box (12), wherein the movable jaw plate (112), the fixed jaw plate (111) and the screen (21) are all arranged in the first protection box (12); The second crushing mechanism (3) further includes a second protective box (33), wherein the first crushing roller (31) and the second crushing roller (32) are both arranged in the second protective box (33), the top of the second protective box (33) is connected to the first protective box (12), and the top of the second protective box (33) is provided with a bolt member that is detachably connected to the first protective box (12).
5. The concrete and stone crushing device according to claim 4, characterized in that: The outer side of the second protection box (33) is rotatably connected to a running wheel (4).
6. The concrete and stone crushing device according to claim 5, characterized in that: The running wheel (4) is movably arranged at the bottom of the side of the second protection box (33) in the up-down direction, and the running wheel (4) has a retracted state away from the ground and a supporting state in contact with the ground.
7. The concrete and stone crushing device according to claim 6, characterized in that: A mounting plate (41) and an elevator (42) are provided between the walking wheel (4) and the second protection box (33); the elevator (42) is connected to the bottom of the side of the second protection box (33) through the mounting plate (41); and the walking wheel (4) is provided at the telescopic end of the elevator (42).
8. The concrete and stone crushing device according to claim 7, characterized in that: The elevator (42) includes a worm, a lead screw and a worm wheel, the worm wheel is coaxially sleeved on the outer periphery of the lead screw, and the inner wall of the worm wheel is adapted to the outer peripheral thread of the lead screw, the worm is meshed with the outer periphery of the worm wheel, the axial direction of the worm is perpendicular to the axial direction of the worm wheel, the worm can drive the worm wheel to rotate, the lead screw can move up and down with the rotation of the worm wheel, and the walking wheel (4) is arranged at the bottom end of the lead screw.
9. A concrete production equipment, characterized in that: A concrete and stone crushing device comprising the device according to any one of claims 1 to 8.