Crushing device for recycled pavement milling materials
By designing a regenerated road milling material crushing device including crushing main box, double-tooth roller structure and anti-blocking hopper assembly, the problems of block blocks in existing equipment, lack of material separation functions and low crushing efficiency are solved, and efficient crushing and material separation functions are achieved, and noise is reduced.
Patent Information
- Application Number
- CN202421638844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing crushing equipment for recycled pavement milling materials has the problem that the material blocks are prone to block the lower funnel, lack of material separation function, and low crushing and crushing efficiency.
A crushing device including a crushing main box, a double-tooth roller structure and an anti-blocking drain hopper assembly is designed. The first drive motor and the second drive motor drive the double-tooth roller body to rotate, and the combination of the crushed tooth block and the fixed crushing block is achieved efficient crushing of the material block. At the same time, the anti-blocking drain hopper assembly is designed with a slope guide plate and a buffer spring to prevent blockage and improve crushing efficiency.
This device effectively avoids blockage of material blocks, has the function of distributing materials, improves crushing efficiency, and reduces noise through a sound-insulating cotton layer.
Smart Images
Figure CN222842181U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of crushing devices, in particular to a crushing device for regenerated road surface milling materials. Background Art
[0002] Asphalt pavement regeneration technology is a set of process technologies that involves excavating, recycling, crushing, screening, and properly mixing old asphalt pavements that need to be renovated or abandoned with new aggregates and new asphalt materials to form a recycled asphalt mixture with certain road performance for paving the surface layer or base layer of the pavement. Among them, the factory-mixed hot regeneration method is to transport the old asphalt pavement back to the mixing plant after milling and excavation, and then crush it centrally. According to the quality requirements of different levels of the pavement, the proportion of old asphalt mixture, regeneration agent, new asphalt material, new aggregate and other materials is determined, and then mixed in a mixer to form a new mixture for paving the asphalt pavement. This method is suitable for the cold milling and hot paving construction process of the pavement, which can not only be used to repair the upper, middle and lower layers of the asphalt pavement, but also to reinforce the base layer and roadbed.
[0003] Recycled asphalt aggregate (RAP) is the fragments obtained after milling and crushing the old road surface. Most of them are a combination of several original road surface mineral materials and recycled asphalt, not a single aggregate. Recycled asphalt aggregates from different sources vary greatly. The influence of many factors such as different gradations, different milling thicknesses, and different milling machines leads to great differences in the agglomeration of recycled asphalt aggregates.
[0004] Therefore, the pretreatment of asphalt pavement milling material (RAP) is a very important procedure, which is mainly to deal with the large materials and "agglomerated materials" in the sample, because when the old mixture is too large and agglomerated, it will waste a lot of energy due to the poor thermal conductivity of asphalt. Furthermore, the variability of material properties such as aggregate gradation and oil-stone ratio of RAP is also a technical bottleneck that restricts the high-mixing and high-level application of hot recycled asphalt mixture. Therefore, it is particularly necessary to carry out pretreatment processes such as crushing, screening, and graded stacking of asphalt pavement milling material (RAP). Crushing equipment mainly includes jaw crusher, cone crusher, gyratory crusher, hammer crusher, roller crusher, impact crusher, impact crusher, etc., which belong to the category of engineering machinery. Common characteristics: basic engineering machinery for crushing raw materials in construction and other industries. Various solid materials have mechanical strength to withstand certain external forces. According to the nature of the applied external force, the mechanical strength can be divided into compressive strength, flexural strength and tensile strength.
[0005] However, the existing crushing equipment for recycled road milling materials still has the problems that the material blocks are easy to block the lower funnel, lack of material separation function and low crushing efficiency.
[0006] Therefore, it is very necessary to invent a crushing device for recycled road milling materials. Utility Model Content
[0007] In order to solve the above technical problems, the utility model provides a crushing device for recycled road milling materials to solve the problems of the existing crushing equipment for recycled road milling materials that the material blocks are easy to block the lower funnel, lack of material separation function and low crushing efficiency.
[0008] A crushing device for recycled road milling material, comprising an upper support frame, a lower support frame, a support column, a control box, an upper shock-absorbing seat, a first drive motor, a crushing main box, a road milling material adding bucket, a hanging earring, an anti-blocking discharge bucket assembly and a second drive motor.
[0009] The support column is longitudinally welded between the upper support frame and the lower support frame; the control box screw is connected to the front left position of the upper support frame; the upper shock absorber seat is bolted to the upper left position of the upper support frame; the first drive motor and the second drive motor are bolted to the upper front and rear sides of the upper shock absorber respectively; the crushing main box is bolted to the right side of the upper support frame; the road milling material adding bucket is bolted to the upper part of the crushing main box and is connected to its interior; the earrings are bolted to the upper four corners of the upper support frame respectively; the anti-blocking discharge hopper assembly is bolted to the lower part of the crushing main box and is connected to its interior.
[0010] Preferably, an upper filling hole is opened on the upper part of the crushing main box body, a finished product leakage hole is opened on the lower part of the crushing main box body, the inner bolts of the crushing main box body are connected with a blocking plate, and the inner surface of the blocking plate is bolted with a fixed crushing block.
[0011] Preferably, the gap between the outer wall of the crushing main box and the blocking plate is filled with a sound insulation cotton layer, and the interior of the crushing main box is transversely inlaid with a crushing double-toothed roller structure.
[0012] Preferably, the crushing double-toothed roller structure includes a double-toothed roller body, a crushing tooth block, a connecting shaft, a ball bearing and a connecting gear, and the crushing tooth blocks are cast in a row on the outer surface of the double-toothed roller body; the connecting shaft is bolted to the middle position on the left and right sides of the double-toothed roller body respectively; the ball bearing is sleeved on the outer right position of the connecting shaft set on the right; and the connecting gear is keyed to the outer left position of the connecting shaft set on the left.
[0013] Preferably, the anti-blocking discharge hopper assembly includes a material discharge shielding hopper, a connecting tube, an embedded spiral tube and a dredging guide rod structure, the connecting tube is riveted to the upper part of the material discharge shielding hopper and is connected to its interior; the embedded spiral tube is respectively embedded in the left and right sides of the material discharge shielding hopper; the dredging guide rod structure is axially connected to the inner side of the material discharge shielding hopper and the connecting tube.
[0014] Preferably, the dredging guide rod structure includes a middle partition plate, a rotating shaft, a ramp guide plate, a buffer tension spring and an adjusting bolt, wherein the rotating shaft is embedded in the upper part of the middle partition plate; the ramp guide plate is screwed at a forty-five-degree angle to the lower positions on the left and right sides of the middle partition plate; one end of the buffer tension spring is screwed to the upper outer position of the ramp guide plate, and the other end is axially connected to the lower end of the adjusting bolt.
[0015] Preferably, the ball bearing is embedded in the right wall of the crushing main box.
[0016] Preferably, the output ends of the first drive motor and the second drive motor are key-connected with drive gears, and the drive gears are meshingly connected with the connecting gears.
[0017] Preferably, two double-toothed roller bodies are provided, and the crushing tooth blocks and the fixed crushing blocks are arranged alternately.
[0018] Preferably, the material discharge shielding bucket is bolted to the lower part of the crushing main box body.
[0019] Preferably, the adjusting bolt is threadably connected to the embedded screw tube.
[0020] Preferably, the middle partition plate is axially connected to the connecting cylinder via a rotating shaft.
[0021] Preferably, the first drive motor and the second drive motor are electrically connected to the control box respectively.
[0022] Preferably, the road milling material adding bucket is connected to the connecting tube and the material discharge shielding bucket through the crushing main box.
[0023] Compared with the prior art, the beneficial effects of the utility model are:
[0024] When the crushing device for recycled road milling material is in use, the recycled road milling material is added to the interior of the road milling material adding bucket, and then falls into the interior of the crushing main box located at the upper part of the double-toothed roller cylinder under the action of gravity, and the two double-toothed roller cylinders are driven to rotate in opposite directions under the action of the first drive motor and the second drive motor, and the material blocks are crushed under the action of the crushing tooth blocks, and the crushing effect is improved with the action of the fixed crushing blocks, and the crushing quality is enhanced; the crushed material residue enters the connecting cylinder, and is discharged from the unloading hopper through the gap between the slope guide plate and the buffer tension spring in turn.
[0025] The crushing device for recycled road milling material utilizes the first drive motor and the second drive motor to drive two double-toothed roller bodies to rotate in opposite directions respectively, so as to break the material blocks. The crushing effect is improved and the crushing quality is enhanced under the action of the fixed crushing block. Moreover, the diffusion of noise is reduced under the action of the sound insulation cotton layer. The overall structure is reasonable and the assembly is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of the utility model.
[0027] Figure 2 It is a structural schematic diagram of the left view of the utility model.
[0028] Figure 3 It is a schematic diagram of the internal structure of the crushing main box of the utility model.
[0029] Figure 4 It is a structural schematic diagram of a crushing double-toothed roller structure of the utility model.
[0030] Figure 5 It is a structural schematic diagram of the anti-blocking discharge hopper assembly of the utility model.
[0031] Figure 6 It is a structural schematic diagram of the dredging guide rod structure of the utility model.
[0032] In the figure:
[0033] 1. Upper support frame; 2. Lower support frame; 3. Support column; 4. Control box; 5. Upper shock absorber seat; 6. First drive motor; 7. Crushing main box; 71. Upper filling hole; 72. Finished product leakage hole; 73. Blocking plate; 74. Fixed crushing block; 75. Sound insulation cotton layer; 76. Crushing double-tooth roller structure; 761. Double-tooth roller cylinder; 762. Crushing tooth block; 763. Connecting shaft; 764. Ball bearing; 765. Connecting gear; 8. Road milling material adding bucket; 9. Lifting earrings; 10. Anti-blocking discharge hopper assembly; 101. Unloading hopper; 102. Connecting cylinder; 103. Embedded spiral tube; 104. Dredging guide rod structure; 1041. Middle partition plate; 1042. Rotating shaft; 1043. Slope guide plate; 1044. Buffer tension spring; 1045. Adjusting bolt; 11. Second drive motor. DETAILED DESCRIPTION
[0034] The utility model is further described below in conjunction with the accompanying drawings:
[0035] Example:
[0036] As attached Figure 1 To Attachment Figure 2As shown, the utility model provides a crushing device for recycled road milling materials, including an upper support frame 1, a lower support frame 2, a support column 3, a control box 4, an upper shock-absorbing seat 5, a first drive motor 6, a crushing main box 7, a road milling material adding bucket 8, a hanging ear ring 9, an anti-blocking discharge bucket assembly 10 and a second drive motor 11, wherein the support column 3 is longitudinally welded between the upper support frame 1 and the lower support frame 2; the control box 4 is screwed to the front left position of the upper support frame 1; the upper shock-absorbing seat 5 is bolted to the upper support frame 1; The first drive motor 6 and the second drive motor 11 are respectively bolted to the front and rear sides of the upper shock-absorbing seat 5; the main crushing box 7 is bolted to the right side of the upper support frame 1; the road milling material adding bucket 8 is bolted to the upper part of the main crushing box 7 and is connected to the inside thereof; the hanging ear rings 9 are respectively bolted to the upper four corners of the upper support frame 1; the anti-blocking discharge bucket assembly 10 is bolted to the lower part of the main crushing box 7 and is connected to the inside thereof;
[0037] The first drive motor 6 and the second drive motor 11 are electrically connected to the control box 4 respectively. The first drive motor 6 and the second drive motor 11 are motors of model LC-SZJ respectively.
[0038] As attached Figure 3 As shown, in the above embodiment, specifically, an upper filling hole 71 is opened on the upper part of the crushing main box body 7, a finished product leakage hole 72 is opened on the lower part of the crushing main box body 7, the inner part of the crushing main box body 7 is bolted with a blocking plate 73, and the inner surface of the blocking plate 73 is bolted with a fixed crushing block 74; the gap between the outer wall of the crushing main box body 7 and the blocking plate 73 is filled with a sound insulation cotton layer 75, and the interior of the crushing main box body 7 is transversely inlaid with a crushing double-toothed roller structure 76.
[0039] As attached Figure 4 As shown, in the above embodiment, specifically, the crushing double-toothed roller structure 76 includes a double-toothed roller body 761, a crushing tooth block 762, a connecting shaft 763, a ball bearing 764 and a connecting gear 765, and the crushing tooth block 762 is cast in sequence on the outer surface of the double-toothed roller body 761 in a row; the connecting shaft 763 is bolted to the middle position on the left and right sides of the double-toothed roller body 761 respectively; the ball bearing 764 is sleeved on the outer right position of the connecting shaft 763 set on the right; the connecting gear 765 is keyed to the outer left position of the connecting shaft 763 set on the left.
[0040] As attached Figure 5As shown, in the above implementation scheme, specifically, the anti-blocking discharge hopper assembly 10 includes a material discharge shield 101, a connecting tube 102, an embedded spiral tube 103 and a dredging guide rod structure 104, the material discharge shield 101 is bolted to the lower part of the crushing main box 7; the connecting tube 102 is riveted to the upper part of the material discharge shield 101 and connected with its interior; the embedded spiral tube 103 is respectively embedded in the left and right sides of the material discharge shield 101; the dredging guide rod structure 104 is axially connected to the inner side of the material discharge shield 101 and the connecting tube 102.
[0041] As attached Figure 6 As shown, in the above implementation scheme, specifically, the dredging guide rod structure 104 includes an intermediate partition plate 1041, a rotating shaft 1042, a slope guide plate 1043, a buffer tension spring 1044 and an adjusting bolt 1045, and the rotating shaft 1042 is embedded in the upper part of the intermediate partition plate 1041; the slope guide plate 1043 is screwed at a forty-five-degree angle to the lower positions on the left and right sides of the intermediate partition plate 1041; one end of the buffer tension spring 1044 is screwed to the upper outer position of the slope guide plate 1043, and the other end is axially connected to the lower end of the adjusting bolt 1045.
[0042] In the above implementation scheme, specifically, the ball bearing 764 is embedded on the right wall of the crushing main box 7; two double-toothed roller bodies 761 are provided, and the crushing tooth blocks 762 and the fixed crushing blocks 74 are arranged in an alternating manner.
[0043] In the above embodiment, specifically, the output ends of the first driving motor 6 and the second driving motor 11 are key-connected with driving gears, and the driving gears are meshingly connected with the connecting gear 765 .
[0044] In the above implementation scheme, specifically, the adjusting bolt 1045 is threadedly connected to the embedded screw tube 103 ; the middle partition plate 1041 is axially connected to the connecting tube 102 via the rotating shaft 1042 .
[0045] In the above embodiment, specifically, the road milling material adding bucket 8 is connected to the connecting cylinder 102 and the material discharge shielding bucket 101 through the crushing main box 7.
[0046] The working process of the utility model is as follows: the milling material of the regenerated road surface is added to the interior of the road surface milling material adding bucket 8, and then falls into the interior of the crushing main box 7 under the action of gravity, and is located on the upper part of the double-toothed roller cylinder 761. The two double-toothed roller cylinders 761 are driven to rotate in opposite directions by the action of the first drive motor 6 and the second drive motor 11, and the material blocks are crushed by the action of the crushing tooth block 762. The crushing effect is improved by the action of the fixed crushing block 74, and the crushing quality is enhanced; the crushed material residue enters the connecting tube 102, and is discharged from the unloading hopper 101 through the gap between the slope guide plate 1043 and the buffer tension spring 1044 in turn.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A crushing device for recycled road milling material, characterized in that: The crushing device for recycled road milling material comprises an upper support frame (1), a lower support frame (2), a support column (3), a control box (4), an upper shock-absorbing seat (5), a first drive motor (6), a crushing main box (7), a road milling material adding bucket (8), a hanging earring (9), an anti-blocking discharge bucket assembly (10) and a second drive motor (11). The support column (3) is longitudinally welded between the upper support frame (1) and the lower support frame (2); the control box (4) is screwed to the front left position of the upper support frame (1); the upper shock absorber seat (5) is bolted to the upper left position of the upper support frame (1); the first drive motor (6) and the second drive motor (11) are respectively bolted to the upper front and rear sides of the upper shock absorber seat (5); the crushing main box (7) is bolted to the right side of the upper support frame (1); the road milling material addition hopper (8) is bolted to the upper part of the crushing main box (7) and is connected to the interior thereof; the earrings (9) are respectively bolted to the upper four corners of the upper support frame (1); the anti-blocking discharge hopper assembly (10) is bolted to the lower part of the crushing main box (7) and is connected to the interior thereof.
2. The crushing device for recycled road milling material according to claim 1, characterized in that: An upper filling hole (71) is provided at the upper part of the main crushing box (7), a finished product leakage hole (72) is provided at the lower part of the main crushing box (7), a blocking plate (73) is bolted inside the main crushing box (7), and a fixed crushing block (74) is bolted to the inner surface of the blocking plate (73).
3. The crushing device for recycled road milling material according to claim 1, characterized in that: The gap between the outer wall of the crushing main box (7) and the blocking plate (73) is filled with a sound insulation cotton layer (75), and the interior of the crushing main box (7) is transversely inlaid with a crushing double-toothed roller structure (76).
4. The crushing device for recycled road milling material according to claim 3, characterized in that: The crushing double-toothed roller structure (76) comprises a double-toothed roller body (761), a crushing tooth block (762), a connecting shaft (763), a ball bearing (764) and a connecting gear (765), wherein the crushing tooth block (762) is cast in a row on the outer surface of the double-toothed roller body (761); the connecting shaft (763) is bolted to the middle positions of the left and right sides of the double-toothed roller body (761); the ball bearing (764) is sleeved on the outer right position of the connecting shaft (763) arranged on the right side; and the connecting gear (765) is keyed to the outer left position of the connecting shaft (763) arranged on the left side.
5. The crushing device for recycled road milling material according to claim 1, characterized in that: The anti-blocking discharge hopper assembly (10) comprises a material discharge shielding hopper (101), a connecting tube (102), an embedded spiral tube (103) and a dredging guide rod structure (104); the connecting tube (102) is riveted to the upper part of the material discharge shielding hopper (101) and is connected to the interior thereof; the embedded spiral tube (103) is respectively embedded on the left and right sides of the material discharge shielding hopper (101); and the dredging guide rod structure (104) is axially connected to the inner sides of the material discharge shielding hopper (101) and the connecting tube (102).
6. The crushing device for recycled road milling material according to claim 5, characterized in that: The dredging guide rod structure (104) comprises a middle partition plate (1041), a rotating shaft (1042), a ramp guide plate (1043), a buffer tension spring (1044) and an adjusting bolt (1045), wherein the rotating shaft (1042) is embedded in the upper part of the middle partition plate (1041); the ramp guide plate (1043) is screwed at a 45-degree angle to the lower positions of the left and right sides of the middle partition plate (1041); one end of the buffer tension spring (1044) is screwed to the upper outer side of the ramp guide plate (1043), and the other end is axially connected to the lower end of the adjusting bolt (1045).
7. The crushing device for recycled road milling material according to claim 4, characterized in that: The ball bearing (764) is embedded in the right wall of the crushing main box (7).
8. The crushing device for recycled road milling material according to claim 4, characterized in that: The output ends of the first drive motor (6) and the second drive motor (11) are keyed to drive gears, and the drive gears are meshedly connected to the connecting gears (765).
9. The crushing device for recycled road milling material according to claim 5, characterized in that: The material discharge shielding bucket (101) is bolted to the lower part of the crushing main box (7).
10. The crushing device for recycled road milling material according to claim 5, characterized in that: The road milling material adding hopper (8) is connected to the connecting tube (102) and the material discharging hopper (101) through the crushing main box (7).