Gravel treatment device for damaged pavement
By designing automated determination, pressure and blocking mechanisms, the problems of gravel stagnation and overflow in damaged road gravel treatment devices are solved, and efficient and safe gravel treatment is achieved.
Patent Information
- Application Number
- CN202510757809.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-07-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, damaged road gravel treatment devices have problems such as stagnation, overflow and inaccurate manual control when dealing with gravel of different sizes, and there are safety hazards.
A gravel treatment device including a determination mechanism, a pressure mechanism and an obstruction mechanism is designed to judge large gravel through the detection rod and a soft rubber sleeve, automatically control the vibration motor and the obstruction cable to intercept the gravel, and combine the timer and hydraulic cylinder to assist in crushing to achieve automatic control.
It improves the efficiency and safety of gravel treatment, avoids accumulation and spillage of gravel, reduces manual intervention, and ensures the stability and safety of equipment operation.
Smart Images
Figure CN120268542A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of crushed stone treatment, and specifically relates to a crushed stone treatment device for damaged road surfaces. Background Technique
[0002] The concrete crushed stones of damaged road surfaces will be crushed by a crusher. During the crushing process, due to the different sizes of the crushed stones, the smaller crushed stones are crushed by the jaw crusher at a faster speed. However, for the larger crushed stones, the crushing speed of the jaw crusher is relatively slow. Moreover, when feeding, the sizes of the crushed stones are mixed and not regular, which will cause continuous feeding to easily get stuck or even overflow. Usually, intermittent feeding is adopted. However, in the prior art, this intermittent feeding method is all manually controlled. By the staff observing the feeding situation, when there are larger crushed stones being crushed, the feeding will be closed, and then feeding will be carried out again after the crushed stones are crushed and sink. Since this method is manually judged, there will be subjectivity and errors, and it is difficult to accurately grasp the feeding timing. At the same time, the staff needs to be close to the feeding port of the running crusher, and there may be dangerous factors such as material splashing and mechanical failures during the operation of the equipment, threatening the personal safety of the staff.
[0003] Therefore, a crushed stone treatment device for damaged road surfaces is proposed to solve the above problems. Summary of the Invention
[0004] To solve the problems raised in the above background technique, the present invention provides a crushed stone treatment device for damaged road surfaces.
[0005] To achieve the above object, the present invention provides the following technical solution: A crushed stone treatment device for damaged road surfaces, comprising a crusher, a fixing frame, a feeding box, a judgment mechanism, a pressing mechanism, and a blocking mechanism; The fixing frame is installed on one side of the bottom frame of the crusher. The feeding box is arranged on the fixing frame through shock-absorbing springs and is driven by a vibration motor. The judgment mechanism is arranged in front of and behind the crusher. The pressing mechanism is arranged in front of and behind the upper part of the crusher and is communicated with the blocking mechanism. The pressing mechanism is also sleeved on the judgment mechanism and can be extruded by the judgment mechanism. The blocking mechanism is arranged on one side of the crusher; The judgment mechanism includes a fixed shaft. The fixed shaft is installed in front of and behind the crusher. A rotating sleeve is rotatably sleeved outside the fixed shaft. A detection rod is connected to the rotating sleeve. A soft rubber sleeve is sleeved outside the detection rod; On one side above the crusher, there is an installation frame. Above the front and rear of the installation frame, movable arms are movably installed. Below the front and rear of the installation frame, oil cylinders II are movably installed. A piston rod II is sleeved inside the oil cylinder II. The end of the piston rod II extends outside the oil cylinder II and can be hinged to the movable arm. A straight spring is sleeved outside the piston rod II. One end of the straight spring is connected to the piston rod II, and the other end of the straight spring is connected to a pressure ring. Above the interior of the oil cylinder II, a pressure sensing element that can abut against the pressure ring is installed.
[0006] Preferably, a fixing plate I is connected inside the rotating sleeve. Outside the fixed shaft, a fixing plate II located inside the rotating sleeve is connected. Below the fixing plate I, a group of arc-shaped rods sleeved inside the fixing plate II are connected. Between the fixing plate I and the fixing plate II, an arc-shaped spring sleeved outside the arc-shaped rod is connected.
[0007] Preferably, the outside of the fixed shaft is movably sleeved with a swing arm II located outside the rotating sleeve. Below the swing arm II, a connecting frame is connected.
[0008] Preferably, the pressing mechanism includes an oil cylinder I. The oil cylinder I is installed at the front and rear of the top of the crusher through a bracket. A piston rod I is sleeved inside the oil cylinder I. The bottom end of the piston rod I is hinged to a swing arm I. The other end of the swing arm I is hinged to the swing arm II.
[0009] Preferably, a liquid pipe is communicated with the oil cylinder I. The other end of the liquid pipe is movably sleeved inside the oil cylinder II. The center of the liquid pipe is consistent with the axis of the movement of the oil cylinder II. Outside the liquid pipe, a stabilizing frame connected to the installation frame is fixedly sleeved.
[0010] Preferably, inside the installation frame, a movable frame coaxial with the movable arm is movably installed. Inside both sides of the movable frame, a group of T-shaped rods are movably sleeved. Inside the T-shaped rods, a blocking cable is connected.
[0011] Preferably, inside the buffer rubber, a buffer rubber located outside the T-shaped rod is fixedly sleeved. The buffer rubber can abut against the T-shaped rod.
[0012] Preferably, a timer is installed on the fixed frame. On the bracket of the oil cylinder I, a hydraulic cylinder located on the feeding port of the crusher is installed. The output end of the hydraulic cylinder is connected with a pressing cone.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, by providing a straight spring and a pressing ring, when encountering larger crushed stones, the large crushed stones will press on the soft rubber sleeve, causing the detection rod, the rotating sleeve, the second fixing plate, the first fixing plate, and the arc-shaped rod to rotate significantly along the fixed shaft. At the same time, the arc-shaped spring is compressed. Subsequently, the detection rod will press on the connecting frame, causing the connecting frame and the second swing arm to rotate along the fixed shaft. Due to the rotation of the second swing arm, the first piston rod can be pushed to rise by the first swing arm, and pressure is exerted on the hydraulic fluid in the first oil cylinder. The hydraulic fluid is conveyed through the liquid pipe to the second oil cylinder, and the second piston rod can be pushed to extend from the second oil cylinder, squeezing the straight spring. Due to the elastic recovery of the straight spring, it will press on the pressure sensing element through the pressing ring, triggering the pressure sensing element. At this time, the control will turn off the vibration motor, causing the feeding box to stop vibrating, thereby avoiding the continuous falling of subsequent crushed stones, providing sufficient redundant time for the crusher to break large stones, and further avoiding the phenomenon of a large amount of crushed stones accumulating on the feeding port of the crusher and overflowing.
[0014] In the present invention, by providing a movable frame and a blocking cable, due to the extension of the second piston rod, it will push the movable arm to rotate and drive the movable frame to rotate together, causing the movable frame to drive the T-shaped rod and the blocking cable to rotate downward and intercept the continuous falling of subsequent large crushed stones under the action of inertia. Due to the different sizes of large stones, the relatively small rotation angle of the detection rod that can be pressed and swung by the relatively small-sized large stones results in a relatively small size range of crushed stones that the blocking cable can intercept. It can intercept larger-sized crushed stones and allow smaller-sized crushed stones to continue to fall with inertia. This is because the space available for crushing relatively small-sized large stones is relatively small, and there is still some remaining space that can be used. Thus, the working efficiency of the crushed stone processing device can be improved. The relatively large rotation angle of the detection rod that can be pressed and swung by relatively large-sized large stones results in a relatively large size range of crushed stones that the blocking cable can intercept. This is because the space available for crushing relatively large-sized large stones is relatively large, and there is no remaining space that can be used, further preventing subsequent crushed stones from continuing to fall with inertia.
[0015] In the present invention, by providing a timer and a pressing cone, when the pressure sensing element is pressed, the control end will also start the timer, and the timer starts timing for ten seconds. When the timing time is exceeded and the pressure sensing element is still in the pressed state, it will be determined that the crushed stone is in a stuck state. This is due to the relatively small contact area between the crushed stone and the crushing mechanism in the crusher. At this time, the control end will start the hydraulic cylinder, driving the pressing cone to descend to exert pressure on the crushed stone located at the feeding port of the crusher, increasing the contact area between the crushed stone and the crushing mechanism in the crusher, thereby assisting the crushing operation of the stuck crushed stone and avoiding personnel safety problems caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2Schematic cross-sectional structure diagram of oil cylinder 1 of the present invention; Figure 3 is Figure 2 Schematic diagram of the partial enlarged structure at position A in; Figure 4 Schematic structure diagram of the determination mechanism of the present invention; Figure 5 Schematic structure diagram of the arc-shaped rod and arc-shaped spring of the present invention; Figure 6 Schematic cross-sectional structure diagram of oil cylinder 2 of the present invention; Figure 7 is Figure 6 Schematic diagram of the partial enlarged structure at position B in; Figure 8 Schematic cross-sectional structure diagram of the movable frame of the present invention.
[0017] In the figure: 1, crusher; 2, fixed frame; 3, feeding box; 4, determination mechanism; 41, fixed shaft; 42, rotating sleeve; 43, detection rod; 44, soft rubber sleeve; 45, fixing plate 1; 46, fixing plate 2; 47, arc-shaped rod; 48, arc-shaped spring; 5, pressing mechanism; 51, oil cylinder 1; 52, piston rod 1; 53, swing arm 1; 54, swing arm 2; 55, connecting frame; 56, liquid pipe; 57, stabilizing frame; 6, blocking mechanism; 61, mounting frame; 62, movable arm; 63, oil cylinder 2; 64, piston rod 2; 65, straight spring; 66, pressing ring; 67, pressure sensing element; 68, movable frame; 69, T-shaped rod; 610, buffer rubber; 611, blocking cable; 7, timer; 8, hydraulic cylinder; 9, counter cone. Specific embodiments
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0019] As Figures 1 to 8 shown, the present invention provides a gravel processing device for damaged roads, including a crusher 1, a fixed frame 2, a feeding box 3, a determination mechanism 4, a pressing mechanism 5 and a blocking mechanism 6; The fixed frame 2 is installed on one side of the chassis of the crusher 1. The feeding box 3 is arranged on the fixed frame 2 through shock-absorbing springs and is driven by a vibration motor. The determination mechanism 4 is arranged in front of and behind the crusher 1. The pressing mechanism 5 is arranged in front of and behind the upper part of the crusher 1 and is communicated with the blocking mechanism 6. The pressing mechanism 5 is also sleeved on the determination mechanism 4 and can be squeezed by the determination mechanism 4. The blocking mechanism 6 is arranged on one side of the crusher 1; The judging mechanism 4 includes a fixed shaft 41 which is installed in front of and behind the crusher 1. An outer rotating sleeve 42 is rotatably sleeved on the fixed shaft 41. A detection rod 43 is connected to the rotating sleeve 42, and a soft rubber sleeve 44 is sleeved on the outer part of the detection rod 43; On one side above the crusher 1, there is an installation frame 61. Above the front and rear of the installation frame 61, movable arms 62 are movably installed. Below the front and rear of the installation frame 61, oil cylinders II 63 are movably installed. A piston rod II 64 is sleeved in the oil cylinder II 63. The end of the piston rod II 64 extends outside the oil cylinder II 63 and can be hinged to the movable arm 62. A straight spring 65 is sleeved on the piston rod II 64. One end of the straight spring 65 is connected to the piston rod II 64, and the other end of the straight spring 65 is connected to a pressure ring 66. Above the interior of the oil cylinder II 63, a pressure sensing element 67 which can abut against the pressure ring 66 is installed.
[0020] With the above solution, when encountering larger crushed stones, the large crushed stones will press on the soft rubber sleeve 44, causing the detection rod 43 and the rotating sleeve 42 to rotate significantly along the fixed shaft 41 and press on the connecting frame 55, so that the hydraulic oil in the pressing mechanism 5 is pressed into the oil cylinder II 63, which can push the piston rod II 64 to extend out of the oil cylinder II 63, squeezing the straight spring 65. Due to the elastic recovery of the straight spring 65, it will squeeze the pressure sensing element 67 through the pressure ring 66 and trigger the pressure sensing element 67. At this time, the control will turn off the vibration motor, causing the feeding hopper 3 to stop vibrating, thus avoiding the continuous falling of subsequent crushed stones and providing sufficient redundant time for the crusher 1 to crush large stones.
[0021] As Figures 2 to 5 shown, a fixing plate I 45 is connected inside the rotating sleeve 42, and a fixing plate II 46 located inside the rotating sleeve 42 is connected to the outer part of the fixed shaft 41. A group of arc-shaped rods 47 sleeved inside the fixing plate II 46 are connected below the fixing plate I 45, and an arc-shaped spring 48 sleeved on the outer part of the arc-shaped rod 47 is connected between the fixing plate I 45 and the fixing plate II 46.
[0022] With the above solution, when the crushed stones fall through the feeding hopper 3, they will land on the detection rod 43. Due to the small volume and light weight of the small crushed stones, they will only cause a small range of swing of the detection rod 43 under the elastic force of the arc-shaped spring 48 and will not press on the connecting frame 55, and then will bypass the detection rod 43 and fall into the crusher 1.
[0023] As Figures 2 to 5 shown, an outer movable sleeve of the fixed shaft 41 is provided with a swing arm II 54 located outside the rotating sleeve 42, and a connecting frame 55 is connected below the swing arm II 54.
[0024] With the above solution, when encountering larger crushed stones, the large crushed stones will press on the soft rubber sleeve 44, causing the detection rod 43, the rotating sleeve 42, the second fixing plate 46, the first fixing plate 45, and the arc-shaped rod 47 to rotate significantly along the fixed shaft 41. At the same time, the arc-shaped spring 48 is compressed. Subsequently, the detection rod 43 will press on the connecting frame 55, causing the connecting frame 55 and the second swing arm 54 to rotate along the fixed shaft 41. This design is the determination condition for large stones.
[0025] As Figures 2 to 5 shown in the figure, the pressing mechanism 5 includes an oil cylinder 51. The oil cylinder 51 is installed at the front and rear of the top of the crusher 1 through brackets. A piston rod 52 is sleeved inside the oil cylinder 51. The bottom end of the piston rod 52 is hinged with a first swing arm 53, and the other end of the first swing arm 53 is hinged with the second swing arm 54.
[0026] With the above solution, when the detection rod 43 presses on the connecting frame 55, causing the connecting frame 55 and the second swing arm 54 to rotate along the fixed shaft 41. Due to the rotation of the second swing arm 54, the piston rod 52 can be pushed to rise through the first swing arm 53, thereby pressurizing the oil in the oil cylinder 51.
[0027] As Figure 2 、 Figure 6 and Figure 7 shown in the figure, a liquid pipe 56 is connected to the oil cylinder 51. The other end of the liquid pipe 56 is movably sleeved inside the oil cylinder 63. The center of the liquid pipe 56 is consistent with the axis of the movable part of the oil cylinder 63. A stabilizing frame 57 connected to the mounting frame 61 is fixedly sleeved outside the liquid pipe 56.
[0028] With the above solution, when the oil in the oil cylinder 51 is pressurized, the oil is transported to the oil cylinder 63 through the liquid pipe 56, thereby pushing the piston rod 64 to extend from the oil cylinder 63.
[0029] As Figure 8 shown in the figure, a movable frame 68 coaxial with the movable arm 62 is movably installed inside the mounting frame 61. A set of T-shaped rods 69 are movably sleeved inside both sides of the movable frame 68. A blocking cable 611 is connected to the inner side of the T-shaped rod 69.
[0030] With the above solution, due to the extension of the piston rod 64, it will push the movable arm 62 to rotate and drive the movable frame 68 to rotate together, causing the movable frame 68 to drive the T-shaped rod 69 and the blocking cable 611 to rotate downward, thereby intercepting the continuous falling of subsequent large crushed stones under the action of inertia.
[0031] As Figure 8 shown in the figure, a buffer rubber 610 is fixedly sleeved inside the buffer rubber 610 located outside the T-shaped rod 69. The buffer rubber 610 can abut against the T-shaped rod 69.
[0032] With the above solution, when the arrester cable 611 arrests, the arrester cable 611 will be stretched. At the same time, the T-shaped rod 69 will tend to move inward and act on the buffer rubber 610, enabling the buffer rubber 610 to play a buffering effect and preventing direct contact between the T-shaped rod 69 and the movable frame 68 from causing damage.
[0033] As Figure 1 and Figure 2 shown, a timer 7 is installed on the fixed frame 2, and a hydraulic cylinder 8 located at the feeding port of the crusher 1 is installed on the bracket of the first oil cylinder 51. The output end of the hydraulic cylinder 8 is connected to a counter cone 9.
[0034] With the above solution, when the pressure sensing element 67 is pressed, the control end will also start the timer 7, and the timer 7 starts timing for ten seconds. When the timing time is exceeded and the pressure sensing element 67 is still in the pressed state, it will be determined that the crushed stone is in a stuck state, which is due to the small contact surface between the crushed stone and the crushing mechanism in the crusher 1. At this time, the control end will start the hydraulic cylinder 8, and by driving the counter cone 9 to descend to press the crushed stone at the feeding port of the crusher 1, the contact surface between the crushed stone and the crushing mechanism in the crusher 1 is increased, thereby assisting the crushing operation of the stuck crushed stone.
[0035] The working principle and usage process of the present invention: During use, the staff pours the crushed stones to be processed onto the feeding box 3, and the vibration motor drives the feeding box 3 to vibrate, shaking the crushed stones into the crusher 1, and then the crusher 1 crushes the crushed stones.
[0036] When the crushed stones fall through the feeding box 3, they will land on the detection rod 43. Since the small crushed stones are small in volume and light in weight, they will only cause a small range of swing of the detection rod 43 under the elastic force of the arc spring 48 and will not press on the connecting frame 55, and then will bypass the detection rod 43 and fall into the crusher 1. When encountering larger crushed stones, the large crushed stones will press on the soft rubber sleeve 44, causing the detection rod 43, the rotating sleeve 42, the second fixing plate 46, the first fixing plate 45 and the arc rod 47 to rotate significantly along the fixed shaft 41. At the same time, the arc spring 48 is compressed. Subsequently, the detection rod 43 will press on the connecting frame 55, causing the connecting frame 55 and the second swing arm 54 to rotate along the fixed shaft 41. Due to the rotation of the second swing arm 54, the first piston rod 52 can be pushed to rise by the first swing arm 53, and the oil in the first oil cylinder 51 is pressurized, and the oil is conveyed through the liquid pipe 56 to the second oil cylinder 63, which can push the second piston rod 64 to extend from the second oil cylinder 63, causing the straight spring 65 to be squeezed. Due to the elastic recovery of the straight spring 65, it will squeeze on the pressure sensing element 67 through the pressure ring 66 and trigger the pressure sensing element 67. At this time, the control will turn off the vibration motor, causing the feeding box 3 to stop vibrating. After the large crushed stones are broken, the large crushed stones will sink and fall. At this time, the detection rod 43 will no longer be pressed and will reset under the elastic recovery of the arc spring 48, releasing the extrusion on the connecting frame 55. At the same time, under the elastic recovery of the straight spring 65, the second piston rod 64 is driven to reset, and at the same time, the pressure sensing element 67 is no longer squeezed by the pressure ring 66. At this time, the control end will continue to turn on the vibration motor and continue to feed the crushed stones into the crusher 1.
[0037] Due to the extension of the piston rod II 64, it will push the movable arm 62 to rotate and drive the movable frame 68 to rotate together, so that the movable frame 68 drives the T-shaped rod 69 and the blocking cable 611 to rotate downward, and intercepts the continued fall of the subsequent large gravel under the action of inertia. When the blocking cable 611 blocks, the blocking cable 611 will be stretched, and at the same time, the T-shaped rod 69 will have a tendency to move inward and act on the buffer rubber 610, so that the buffer rubber 610 plays a buffering effect to avoid direct contact between the T-shaped rod 69 and the movable frame 68 and cause damage. Due to the different sizes of the large stones, the rotation angle of the detection rod 43 that can be pressed and swung by the relatively small-sized large stones is relatively small, which will make the rotation angle of the movable frame 68 relatively small, so that the size range of gravel that the blocking cable 611 can intercept is relatively small, and it can intercept larger-sized gravel and avoid larger-sized gravel from continuing to fall with inertia. The relatively small-sized gravel is allowed to continue to fall with inertia because the space available for the crushing of the relatively small-sized large stones is relatively small, and there is still some remaining space that can be used, thus improving the working efficiency of the gravel processing device. The rotation angle of the detection rod 43 that can be pressed and swung by the relatively large-sized large stones is relatively large, which will make the rotation angle of the movable frame 68 relatively large, so that the size range of gravel that the blocking cable 611 can intercept is relatively large, and it can avoid larger-sized and smaller-sized gravel from continuing to fall with inertia because the space available for the crushing of the relatively large-sized large stones is relatively large and there is no remaining space that can be used.
[0038] When the detection rod 43 resets, due to the reset contraction of the piston rod II 64, it will drive the buffer rubber 610 and the blocking cable 611 to rotate and reset, actively releasing the interception of the gravel.
[0039] When the pressure sensing element 67 is pressed, the control end will also start the timer 7, and the timer 7 starts timing for ten seconds. When the timing time is exceeded and the pressure sensing element 67 is still in the pressed state, it will be determined that the gravel is in a stuck state, which is caused by the relatively small contact surface between the gravel and the crushing mechanism in the crusher 1. At this time, the control end will start the hydraulic cylinder 8, and by driving the pressing cone 9 to descend to press the gravel at the feeding port of the crusher 1, the contact surface between the gravel and the crushing mechanism in the crusher 1 is increased, thus assisting the crushing operation of the stuck gravel and avoiding the personnel safety problems caused by manual operation.
[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gravel treatment device for damaged road surfaces, characterized in that , including a crusher (1), a fixing frame (2), a feeding box (3), a judging mechanism (4), a pressing mechanism (5) and a blocking mechanism (6); The fixing frame (2) is installed on one side of the chassis of the crusher (1). The feeding box (3) is arranged on the fixing frame (2) through shock-absorbing springs and is driven by a vibration motor. The judging mechanism (4) is arranged in front of and behind the crusher (1). The pressing mechanism (5) is arranged in front of and behind the upper part of the crusher (1) and is communicated with the blocking mechanism (6). The pressing mechanism (5) is also sleeved on the judging mechanism (4) and can be extruded by the judging mechanism (4). The blocking mechanism (6) is arranged on one side of the crusher (1); The judging mechanism (4) includes a fixed shaft (41). The fixed shaft (41) is installed in front of and behind the crusher (1). A rotating sleeve (42) is rotatably sleeved outside the fixed shaft (41). A detection rod (43) is connected to the rotating sleeve (42). A soft rubber sleeve (44) is sleeved outside the detection rod (43); On one side above the crusher (1), there is an installation frame (61). Moving arms (62) are movably installed above the front and rear of the installation frame (61). Oil cylinders II (63) are movably installed below the front and rear of the installation frame (61). A piston rod II (64) is sleeved inside the oil cylinder II (63). The end of the piston rod II (64) extends outside the oil cylinder II (63) and can be hinged to the moving arm (62). A straight spring (65) is sleeved outside the piston rod II (64). One end of the straight spring (65) is connected to the piston rod II (64), and the other end of the straight spring (65) is connected to a pressure ring (66). A pressure sensing element (67) that can abut against the pressure ring (66) is installed above the inside of the oil cylinder II (63).
2. The gravel treatment device for damaged road surfaces according to claim 1, wherein: A fixing plate I (45) is connected inside the rotating sleeve (42). A fixing plate II (46) located inside the rotating sleeve (42) is connected to the outside of the fixed shaft (41). A group of arc-shaped rods (47) sleeved inside the fixing plate II (46) are connected below the fixing plate I (45). An arc-shaped spring (48) sleeved outside the arc-shaped rod (47) is connected between the fixing plate I (45) and the fixing plate II (46).
3. A gravel processing device for damaged road surfaces according to claim 1, characterized in that: A swing arm II (54) is movably sleeved outside the fixed shaft (41) and located outside the rotating sleeve (42). A connecting frame (55) is connected below the swing arm II (54).
4. A gravel treatment device for damaged road surfaces according to claim 3, characterized in that, The pressing mechanism (5) includes an oil cylinder I (51). The oil cylinder I (51) is installed in front of and behind the top of the crusher (1) through a bracket. A piston rod I (52) is sleeved inside the oil cylinder I (51). The bottom end of the piston rod I (52) is hinged to a swing arm I (53). The other end of the swing arm I (53) is hinged to the swing arm II (54).
5. The gravel processing device for damaged road surfaces according to claim 4, characterized in that: A liquid pipe (56) is connected to the first oil cylinder (51). The other end of the liquid pipe (56) is movably sleeved inside the second oil cylinder (63). The center of the liquid pipe (56) is aligned with the axis of movement of the second oil cylinder (63). A stabilizing frame (57) connected to the mounting frame (61) is fixedly sleeved outside the liquid pipe (56).
6. The gravel processing device for damaged road surfaces according to claim 1, characterized in that: A movable frame (68) coaxial with the movable arm (62) is movably installed inside the mounting frame (61). A set of T-shaped rods (69) are movably sleeved inside both sides of the movable frame (68). A blocking cable (611) is connected to the inner side of the T-shaped rod (69).
7. A gravel treatment device for damaged road surfaces according to claim 6, characterized in that: A buffer rubber (610) is fixedly sleeved inside the buffer rubber (610) located outside the T-shaped rod (69). The buffer rubber (610) can abut against the T-shaped rod (69).
8. A gravel treatment device for damaged road surfaces according to claim 4, characterized in that: A timer (7) is installed on the fixed frame (2). A hydraulic cylinder (8) is installed on the support of the first oil cylinder (51) and is located above the feeding port of the crusher (1). The output end of the hydraulic cylinder (8) is connected to a counter cone (9).