Road construction compactor

Abstract

This invention discloses a road rolling device for municipal engineering road construction, characterized by comprising: a vehicle body, a vibratory compaction structure and a secondary compaction structure mounted on the vehicle body; a front-to-back displacement structure for repeated compaction by the secondary compaction structure; a telescopic component including a fixed rod and a moving part mounted on the secondary compaction structure, the moving part including a limiting frame that can move up and down along the fixed rod within a certain range, the limiting frame having a vertical rod; a vertical telescopic mechanism mounted on the front-to-back displacement structure, the output end of the vertical telescopic mechanism being slidably connected to the vertical rod; a first elastic element disposed between the secondary compaction structure and the limiting frame; and a second elastic element disposed between the output end of the vertical telescopic mechanism and the moving part. This invention can simultaneously perform static compaction on the loosened road surface caused by vibration after vibratory compaction, improving compaction efficiency. Furthermore, it can adjust the static compaction pressure according to the looseness of the road surface to meet different compaction requirements.

Description

Technical Field

[0001] This invention relates to the field of road construction equipment technology, and in particular to a road rolling device for municipal engineering road construction. Background Technology

[0002] When constructing roads, compaction equipment is needed to compact the road surface. Vibratory rolling is usually used in compaction to make the road surface smoother to a certain extent. However, under the action of vibration, the air between the road particles is squeezed out, which reduces the friction between the particles and causes the road surface to loosen. Therefore, after using vibratory rolling, it is often necessary to use static rolling equipment to repeatedly compact the road surface.

[0003] Existing compaction devices can only achieve static compaction followed by vibratory compaction per pass. This requires repeated compaction of the road surface, making operation cumbersome and increasing compaction time. Furthermore, during the recompaction process using static compaction after vibratory compaction, the required static compaction pressure varies depending on the degree of looseness of the road surface. The compaction pressure of conventional static compaction equipment mainly comes from the weight of the compaction rollers themselves, requiring the replacement of different static compaction devices for different degrees of looseness. This results in low compaction efficiency. Moreover, during static compaction, the compaction rollers experience varying degrees of vibration as the vehicle moves, which to some extent affects the service life of the static compaction equipment.

[0004] In view of this, it is necessary to design a road rolling device for municipal engineering road construction to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a road roller for municipal engineering road construction that can simultaneously perform static compaction on the road surface that is loosened by vibration after vibratory compaction, thereby improving the compaction efficiency. It can also adjust the static compaction pressure according to the looseness of the road surface to meet different compaction needs. Furthermore, it can mitigate the impact of bumps on the static compaction equipment during the static compaction process, effectively improving the service life of the equipment.

[0006] To achieve the above-mentioned objectives, the present invention provides a road rolling device for municipal engineering road construction, comprising:

[0007] Vehicle body;

[0008] A vibratory compaction structure includes a vibratory compaction roller, which is connected to the vehicle body via a connecting frame;

[0009] The compaction structure is positioned behind the vibratory compaction structure along the rolling direction;

[0010] The front and rear displacement structure is used to control the forward and backward movement of the compaction structure relative to the vehicle body to achieve repeated compaction;

[0011] The telescopic assembly includes a fixed rod disposed on a composite pressure structure and a movable part slidably connected to the fixed rod. The movable part includes a limiting frame that can move up and down along the fixed rod within a certain range, and a vertical rod is disposed on the limiting frame.

[0012] A vertical telescopic mechanism is installed on the front and rear displacement structure to adjust the pressure exerted on the ground by the pressure structure. The output end of the vertical telescopic mechanism is slidably connected to the vertical rod. The vertical telescopic mechanism also serves as a control component to adjust whether the pressure structure is in a raised or lowered state.

[0013] The first elastic element is set between the secondary pressure structure and the limiting frame. When the output end of the vertical telescopic mechanism moves down, it drives the limiting frame to move down and compress the first elastic element. The first elastic element acts as a pressure transmission element, making the secondary pressure greater than the weight of the secondary pressure structure. At the same time, the first elastic element also acts as a buffer element.

[0014] The second elastic element is disposed between the output end and the moving part of the vertical telescopic mechanism. When the output end of the vertical telescopic mechanism moves upward, the second elastic element deforms, causing the limiting frame to be subjected to an upward force, which in turn causes the fixed rod connected to the limiting frame to be subjected to an upward force, making the pressure of the secondary pressure less than the weight of the secondary pressure structure. When the output end of the vertical telescopic mechanism moves upward to drive the telescopic component to move upward, the secondary pressure structure is in a raised state.

[0015] As a further improvement of the present invention, the first elastic element is a first spring, which is sleeved on the fixed rod, with one end connected to the bottom of the limiting frame and the other end connected to the pressure structure.

[0016] As a further improvement of the present invention, a first limiting plate is provided at the top of the fixed rod, so that the upper part of the fixed rod is always located within the limiting frame. When the pressure of the overpressure is equal to the weight of the overpressure structure, the first limiting plate is attached to the bottom of the inner side of the limiting frame, and the first spring serves as a buffer and a support for providing support for the moving part.

[0017] As a further improvement of the present invention, the output end of the vertical telescopic mechanism is connected to a horizontal plate, and the end of the horizontal plate away from the output end of the vertical telescopic mechanism passes through the vertical rod and can slide up and down along the vertical rod.

[0018] As a further improvement of the present invention, the bottom of the vertical rod is fixed to the top of the limiting frame, and a second limiting plate is provided at the top of the vertical rod.

[0019] As a further improvement of the present invention, the second elastic element is a second spring. The second spring is sleeved on the vertical rod, and one end is connected to the second limiting plate, and the other end is connected to the horizontal plate. When the pressure of the pressure is equal to the weight of the pressure structure, the horizontal plate is attached to the top surface of the limiting frame, and the second elastic element is in a normal extension and contraction state.

[0020] As a further improvement of the present invention, a rubber block is sleeved at the bottom of the vertical rod to prevent the horizontal plate from rigidly colliding with the limiting frame.

[0021] As a further improvement of the present invention, a cleaning mechanism for scraping off the material adhering to the vibrating roller is provided in front of the vibrating roller. The cleaning mechanism includes a scraper and a support frame fixed on the connecting frame for supporting the scraper. A third spring is also provided between the scraper and the support frame to keep the scraper in contact with the outer wall of the vibrating roller at all times.

[0022] As a further improvement of the present invention, a debris removal mechanism is also provided in front of the vibratory compaction structure to move debris in front of the compaction equipment to both sides of the compaction equipment along the compaction direction. The debris removal mechanism is connected to the connecting frame through a connecting component, and the height of the debris removal mechanism is adjusted by adjusting the state of the connecting component.

[0023] As a further improvement of the present invention, the obstacle removal mechanism includes an obstacle removal baffle fixed between two connecting components and a rotating rod rotatably connected to the two connecting components; the rotating rod is provided with a spiral fan blade with opposite rotation direction, so that when the rotating rod rotates and drives the spiral fan blade to rotate, the debris moves to both sides of the road rolling equipment.

[0024] The beneficial effects of this invention are:

[0025] 1. This invention integrates vibratory compaction and static compaction by setting a secondary compaction structure behind the vibratory compaction structure along the compaction direction. A forward-backward displacement structure allows the secondary compaction roller to move relative to the vehicle body. Simultaneously, a vertical telescopic mechanism, in conjunction with a telescopic component, a first elastic element, and a second elastic element, adjusts the pressure exerted by the secondary compaction roller on the ground. This allows for repeated compaction using static compaction after vibratory compaction, thus achieving integrated vibratory and static compaction. This avoids the need to change operating equipment during road leveling operations, which would affect the efficiency of the leveling work. Furthermore, the static compaction pressure can be adjusted according to the looseness of the road surface, eliminating the need to replace the static compaction equipment and meeting the operational requirements of the road surface, effectively improving work efficiency.

[0026] 2. In addition to cooperating with the vertical telescopic mechanism and the telescopic assembly to complete the re-pressing pressure adjustment, the first elastic element of the present invention can also act as a buffer to alleviate the impact of bumps on the re-pressing structure during the re-pressing process using static rolling, effectively improving the service life of the equipment. Furthermore, since the first elastic element is fixed between the horizontal plate and the vertical rod, it can also maintain the stability between the vertical telescopic mechanism and the telescopic assembly to a certain extent. Since the second elastic element is fixed between the limiting frame and the fixed rod, it can also maintain the stability between the telescopic assembly and the re-pressing structure to a certain extent. Thus, the vertical telescopic mechanism, the telescopic assembly, and the re-pressing structure can cooperate with each other to complete the re-pressing pressure adjustment, while maintaining a relatively stable connection state between them. This allows the front and rear displacement structure to control the re-pressing structure to move back and forth repeatedly, ensuring the re-pressing effect. Attached Figure Description

[0027] Figure 1 A schematic diagram of the overall structure of road rollers used in municipal engineering road construction.

[0028] Figure 2 A partial structural diagram of a road roller used for municipal road construction.

[0029] Figure 3 This is a magnified view of point A.

[0030] Figure 4 This is a schematic diagram of the pressurized state.

[0031] Figure 5 This is a schematic diagram showing the state without applied pressure.

[0032] Figure 6 Divide B into the enlarged image.

[0033] Figure 7 This is a partial structural diagram of the forward and backward displacement structure.

[0034] Figure 8 Another perspective structural diagram of road roller equipment used for municipal engineering road construction.

[0035] Figure 9 This is a schematic diagram of the cleaning mechanism.

[0036] Figure 10 This is a structural diagram of the obstacle removal mechanism.

[0037] Figure Labels

[0038] 10. Vehicle body; 21. Vibratory roller; 22. Connecting frame; 31. Frame; 32. Motor; 33. Lead screw; 34. Slider; 35. Connecting plate; 41. Pressure regulating hydraulic cylinder; 42. Fixing frame; 43. Horizontal plate; 51. Re-pressure roller; 52. Wheel arch cover; 53. Cleaning plate; 54. Cleaning hole; 61. Fixing rod; 611. First limiting plate; 62. Limiting frame; 63. Vertical rod; 631. Second limiting plate; 632. Rubber block; 71. First spring; 72. Second spring; 81. Scraper; 82. Support frame; 83. Third spring; 91. Telescopic hydraulic cylinder; 92. Short rod; 93. Long rod; 94. Baffle; 95. Rotating rod; 96. Spiral fan blade; 97. Drive component. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0041] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] like Figures 1-3 As shown, the present invention provides a road rolling device for municipal engineering road construction, comprising:

[0043] Vehicle body 10;

[0044] The vibratory compaction structure includes a vibratory compaction roller 21, which is connected to the vehicle body 10 via a connecting frame 22;

[0045] The compaction structure is positioned behind the vibratory compaction structure along the rolling direction;

[0046] The front and rear displacement structure is used to control the forward and backward movement of the compound compaction structure relative to the vehicle body 10 to achieve repeated compaction;

[0047] The telescopic assembly includes a fixed rod 61 disposed on the composite pressure structure and a movable part slidably connected to the fixed rod 61. The movable part includes a limiting frame 62 that can move up and down along the fixed rod 61 within a certain range. A vertical rod 63 is disposed on the limiting frame 62.

[0048] A vertical telescopic mechanism is installed on the front and rear displacement structure to adjust the pressure exerted on the ground by the pressure structure. The output end of the vertical telescopic mechanism is slidably connected to the vertical rod 63. The vertical telescopic mechanism also serves as a control component to adjust whether the pressure structure is in a raised or lowered state.

[0049] The first elastic element is disposed between the pressure structure and the limiting frame 62. When the output end of the vertical telescopic mechanism moves down, it drives the limiting frame 62 to move down and compress the first elastic element. The first elastic element acts as a pressure transmission element, making the pressure of the pressure structure greater than its own weight. At the same time, the first elastic element also acts as a buffer and a support element for providing support for the moving part.

[0050] The second elastic element is disposed between the output end of the vertical telescopic mechanism and the moving part. When the output end of the vertical telescopic mechanism moves upward, the second elastic element deforms, causing the limiting frame 62 to be subjected to an upward force, which in turn causes the fixed rod 61 connected to the limiting frame 62 to be subjected to an upward force. At this time, the second elastic element acts as a pressure reduction and transmission element, making the pressure of the secondary pressure less than the weight of the secondary pressure structure. When the output end of the vertical telescopic mechanism moves upward to drive the telescopic component to move upward, the secondary pressure structure is in a raised state.

[0051] Specifically, such as Figure 2 and Figure 7 As shown, in this embodiment, the front-to-back displacement structure includes a frame 31 fixed to the lower end of the vehicle body 10. Along the moving direction of the vehicle body 10, the frame 31 has openings on both sides. The top of the frame 31 is fixedly connected to the vehicle body 10. A motor 32 is located at the rear of the frame 31, and a lead screw 33 is connected to the output end of the motor 32. The lead screw 33 passes through the rear side of the frame 31 to the front side of the frame 31 and is rotatably connected to the front and rear sides of the frame 31 via bearings. A slider 34 is also provided on the lead screw 33, and connecting plates 35 are symmetrically arranged on both sides of the slider 34. Two vertical telescopic mechanisms are respectively arranged on the two connecting plates 35. When the motor 32 drives the lead screw 33 to rotate, the slider 34 moves back and forth along the lead screw 33, causing the vertical telescopic mechanisms on the connecting plates 35 to move back and forth. This, in turn, causes the compound pressing structure connected to the vertical telescopic mechanism via the telescopic component to move back and forth, achieving repeated crushing. In other embodiments, a telescopic cylinder or other structure capable of controlling the relative reciprocating motion of two objects can also be used to control the reciprocating movement of the compound pressing structure.

[0052] Specifically, the vertical telescopic mechanism is located at the end of the connecting plate 35 away from the slider 34, such as... Figure 3 As shown, in this embodiment, the vertical telescopic mechanism includes a pressure regulating hydraulic cylinder 41 and a fixing frame 42 for fixing the pressure regulating hydraulic cylinder 41 on the connecting plate 35. The output end of the vertical telescopic mechanism, i.e. the output end of the pressure regulating hydraulic cylinder 41, passes through the top plate of the fixing frame 42 and is connected to a horizontal plate 43.

[0053] Specifically, such as Figure 6 As shown, the re-pressing structure includes a re-pressing roller 51 and a wheel arch cover 52 disposed above the re-pressing roller 51. The two ends of the wheel arch cover 52 are connected to the re-pressing roller 51 via bearing connections. These bearing connections can be any existing bearing design that allows two objects to rotate, and will not be elaborated further here. A cleaning plate 53 is provided on the wheel arch cover 52. The side of the cleaning plate 53 away from the wheel arch cover 52 abuts against the outer wall of the re-pressing roller 51 to clean objects adhering to the re-pressing roller 51 during the pressing process. The cleaning plate 53 is made of an elastic material with a certain strength to ensure cleaning effectiveness while avoiding damage to the cleaning plate 53 or the re-pressing roller 51 caused by rigid contact. The wheel arch cover 52 also has cleaning holes 54, allowing the re-pressing roller 51 to be cleaned using a high-pressure water gun or other cleaning tools passed through the cleaning holes 54 when cleaning is required.

[0054] Specifically, the telescopic components are set up corresponding to the vertical telescopic mechanism; such as Figure 5 As shown, the bottom of the fixing rod 61 is fixed to the wheel arch cover 52, and the top is provided with a first limiting plate 611. The setting of the first limiting plate 611 ensures that the upper part of the fixing rod 61 is always within the limiting frame 62; the first elastic element is a first spring 71, which is sleeved on the fixing rod 61, with one end connected to the bottom of the limiting frame 62 and the other end connected to the wheel arch cover 52; when the pressure roller 51 is in the ground state and the vertical telescopic mechanism does not apply pressure to the telescopic component, the pressure is equal to the self-weight of the pressure structure, and the first limiting plate 611 is attached to the bottom of the inner side of the limiting frame 62. Figure 5 At this time, the first spring 71 serves as a support for the moving part and also as a buffer. When the road surface is uneven and causes bumps, the pressure structure can move upward so that the fixed rod 61 moves within the limiting frame 62 and compresses the first spring 71 to buffer the force, thereby alleviating the impact of bumps on the pressure structure and improving the service life of the pressure structure. The limiting frame 62 is set as a buffer to provide sufficient buffer distance.

[0055] Specifically, the bottom of the vertical rod 63 is fixed to the top of the limiting frame 62, and a second limiting plate 631 is provided at the top of the vertical rod 63; the end of the horizontal plate 43 away from the output end of the vertical telescopic mechanism passes through the vertical rod 63 and can slide up and down along the vertical rod 63; in this embodiment, the second elastic element is a second spring 72, which is sleeved on the vertical rod 63, with one end connected to the second limiting plate 631 and the other end connected to the top of the limiting frame 62. When the pressure of the overpressure is equal to the weight of the overpressure structure, the horizontal plate 43 is attached to the top surface of the limiting frame 62, and the second spring 72 is in a normal telescopic state. Figure 5 When the output end of the vertical telescopic structure moves upward to compress the second spring 72, the second spring 72 acts as a pressure-reducing transmission element, making the recompression pressure less than the self-weight of the recompression structure. Figure 3 In another embodiment, one end of the second spring 72 can be connected to the lower surface of the horizontal plate 43, and the other end can be connected to the top surface of the limiting frame 62. When the output end of the vertical telescopic structure moves upward and the second spring 72 extends, the restoring force of the second spring 72 causes the limiting frame 62 to be subjected to an upward force. At this time, the second spring 72 acts as a pressure reduction transmission element, so that the pressure of the pressure is less than the weight of the pressure structure itself.

[0056] Specifically, a rubber block 632 is fitted at the bottom of the vertical rod 63, so that when the output end of the vertical telescopic mechanism descends and drives the horizontal plate 43 to descend, the rubber block 632 forms a buffer area to avoid rigid collision between the horizontal plate 43 and the top surface of the limit frame 62, which would cause damage to the equipment.

[0057] Specifically, the pressure adjustment process of the pressure-reducing structure is as follows: Figure 5 As shown, when static compaction is required using the self-weight of the compound compaction structure, the output end of the vertical telescopic mechanism is at a certain height, so that the horizontal plate 43 is attached to the rubber block 632 at the top of the limiting frame 62. The second spring 72 is in a normal telescopic state, the compound compaction structure is in a grounded state, and the first spring 71 is not subjected to the force of the horizontal plate 43. At this time, the first spring 71 acts as a support to bear the self-weight of the moving part, keeping the moving part in a relatively static state. The first limiting plate 611 is attached to the bottom of the inner side of the limiting frame 62. At this time, the first elastic element also acts as a buffer to alleviate the bumps of the compound compaction structure caused by uneven road surface. The limiting frame 62 provides sufficient buffer distance, and at the same time, the limiting frame 62 is also used to limit the upward movement height of the compound compaction structure; as Figure 4 As shown, when additional pressure is required, the output end of the vertical telescopic mechanism moves downward, causing the horizontal plate 43 to move downward, which in turn moves the limiting frame 62 downward, compressing the first spring 71. At this time, the second spring 72 is still in its normal telescopic state. The compression of the first spring 71 makes the additional pressure greater than the self-weight of the additional pressure structure. By converting the pressurization adjustment process into the deformation degree of the first spring 71, it is beneficial to fine-tune the additional pressure, fully meeting the various pressure requirements during operation. Moreover, during the pressurization adjustment process, the first spring 71 can still act as a buffer to alleviate bumps to a certain extent; such as Figure 3As shown, when it is necessary to reduce the pressure of the secondary pressure, the output end of the vertical telescopic mechanism moves upward, causing the horizontal plate 43 to move upward and compress the second spring 72. Under the restoring force of the second spring 72, the second limiting plate 631 is subjected to an upward force, causing the limiting frame 62 connected to the bottom of the vertical rod 63 to be subjected to an upward force, which in turn causes the fixing rod 61, which is attached to the bottom of the inner side of the limiting frame 62 through the first limiting plate 611, to be subjected to an upward force, so that the pressure of the secondary pressure is less than the self-weight of the secondary pressure structure. By converting the pressure reduction adjustment process into the deformation degree of the second spring 72, it is beneficial to fine-tune the pressure of the secondary pressure and fully meet the various pressure requirements in the operation process. During the pressure reduction process, the secondary pressure structure is always in contact with the ground, and the first spring 71 acts as a buffer to alleviate bumps. When the secondary pressure structure needs to be lifted after static compaction, the output end of the vertical telescopic mechanism moves upward to compress the second spring 72 and drive the vertical rod 63 to move upward, so that the secondary pressure structure is in the lifted state. Thus, the vertical telescopic mechanism can be used to adjust the ground state and the lifted state of the secondary pressure structure.

[0058] Specifically, such as Figure 8 and Figure 9 As shown, a cleaning mechanism for scraping off substances adhering to the vibratory roller 21 is provided in front of the vibratory roller 21. The cleaning mechanism includes a scraper 81 and a support frame 82 fixed on the connecting frame 22 for supporting the scraper 81. The scraper 81 is located at the end of the support frame 82 away from the connecting frame 22. Specifically, one side of the scraper 81 is connected to the support frame 82 through a rotating joint, and the other side is elastically connected to the support frame 82 through several third springs 83. Under the action of the third springs 83, the scraper 81 always maintains contact with the outer wall of the vibratory roller 21. This can ensure the cleaning efficiency of the roller while avoiding damage to the roller by the scraper 81. At the same time, it can also reduce the wear of the scraper 81 by the force during the cleaning process and improve the service life of the scraper 81. Meanwhile, the scraper 81 is inclined downwards in the direction away from the vibratory roller 21, so that the soil cleaned from the vibratory roller 21 can be guided along the scraper 81 to the front of the vibratory roller 21, which is convenient for the vibratory roller 21 to perform rolling treatment.

[0059] Specifically, a debris removal mechanism is also provided in front of the vibratory compaction structure to move debris in front of the compaction equipment to both sides of the compaction equipment along the compaction direction. The debris removal mechanism is located on the side of the cleaning mechanism away from the vibratory compaction roller 21. The debris removal mechanism is connected to the connecting frame 22 through a connecting component, and the height of the debris removal mechanism is adjusted by adjusting the state of the connecting component.

[0060] Specifically, such as Figure 10As shown, the obstacle removal mechanism includes an obstacle removal baffle 94 fixed between two connecting components and a rotating rod 95 rotatably connected to the two connecting components. The obstacle removal baffle 94 is arc-shaped, with the center of the arc away from the vibrating roller 21. A toothed rod is provided below the obstacle removal baffle 94 to scoop up debris on the road surface and bring it closer to the rotating rod 95. The rotating rod 95 is located on the side of the toothed rod away from the vibrating roller 21, and a spiral fan blade 96 with the opposite rotation direction is provided on the rotating rod 95. When the rotating rod 95 rotates and drives the spiral fan blade 96 to rotate, the debris moves to both sides of the road rolling equipment, avoiding the presence of debris from affecting the road flattening operation.

[0061] Specifically, the connecting assembly includes a telescopic hydraulic cylinder 91 and an angled frame connected to the moving section of the telescopic hydraulic cylinder 91. In this embodiment, the angled frame consists of a short rod 92 and a long rod 93 connected vertically. The end of the short rod 92 away from the long rod 93 is connected to the connecting frame 22 via a rotating joint. The rotating rod 95 and the obstacle-clearing baffle 94 are located at the end of the long rod 93 away from the short rod 92. The telescopic hydraulic cylinder 91 is mounted on the connecting frame 22, so that when telescopically extending or retracting, the entire telescopic hydraulic cylinder 91 can rotate around the fixed section away from the moving section. The structure of this part can be designed according to existing structures and will not be described in detail here. The end of the short rod 92 near the long rod 93 is rotatably connected to the moving section of the telescopic hydraulic cylinder 91 away from the fixed end, so that the telescopic hydraulic cylinder 91 moves in an arc while telescopically extending or retracting, causing the angled frame to rotate around the connection point between the short rod 92 and the connecting frame 22, thereby adjusting the height of the adjusting rack and the rotating rod 95 to adjust the obstacle-clearing depth.

[0062] Specifically, the long rod 93 is also equipped with a drive component 97 for driving the rotating rod 95 to rotate.

[0063] The working principle of the road rolling equipment for municipal engineering road construction provided by this invention will be explained below.

[0064] During operation, the secondary compaction structure is in the raised state. The vehicle body 10 moves the vibratory compaction structure and the secondary compaction structure to the road surface to be compacted, and the connecting components are adjusted to adjust the clearing depth. As the vehicle body 10 moves, the clearing mechanism moves the debris in front of the vehicle body 10 to both sides of the vehicle body 10. The vibratory compaction roller 21 vibrates and compacts the road surface. At the same time, the secondary compaction structure is brought to the ground according to the compaction situation. The secondary compaction pressure is adjusted as needed, and the forward and backward movement of the secondary compaction structure is controlled by the front and rear displacement structure so that the secondary compaction structure can achieve multiple repeated compaction during the forward movement of the vehicle body 10. When secondary compaction is not required, the secondary compaction structure is raised in conjunction with the telescopic components through the vertical telescopic structure.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A road roller for municipal engineering road construction, characterized in that, include: Vehicle body; A vibratory compaction structure includes a vibratory compaction roller, which is connected to the vehicle body via a connecting frame; The compaction structure is positioned behind the vibratory compaction structure along the rolling direction; The front and rear displacement structure is used to control the forward and backward movement of the compaction structure relative to the vehicle body to achieve repeated compaction; The telescopic assembly includes a fixed rod disposed on a composite pressure structure and a movable part slidably connected to the fixed rod. The movable part includes a limiting frame that can move up and down along the fixed rod within a certain range, and a vertical rod is disposed on the limiting frame. A vertical telescopic mechanism is installed on the front and rear displacement structure to adjust the pressure exerted on the ground by the pressure structure. The output end of the vertical telescopic mechanism is slidably connected to the vertical rod. The vertical telescopic mechanism also serves as a control component to adjust whether the pressure structure is in a raised or lowered state. The first elastic element is set between the secondary pressure structure and the limiting frame. When the output end of the vertical telescopic mechanism moves down, it drives the limiting frame to move down and compress the first elastic element. The first elastic element acts as a pressure transmission element, making the secondary pressure greater than the weight of the secondary pressure structure. At the same time, the first elastic element also acts as a buffer element. The second elastic element is disposed between the output end and the moving part of the vertical telescopic mechanism. When the output end of the vertical telescopic mechanism moves upward, the second elastic element deforms, causing the limiting frame to be subjected to an upward force, which in turn causes the fixed rod connected to the limiting frame to be subjected to an upward force, making the pressure of the secondary pressure less than the weight of the secondary pressure structure. When the output end of the vertical telescopic mechanism moves upward to drive the telescopic component to move upward, the secondary pressure structure is in a raised state.

2. The road roller for municipal engineering road construction according to claim 1, characterized in that: The first elastic element is a first spring, which is sleeved on the fixed rod, with one end connected to the bottom of the limiting frame and the other end connected to the pressure structure.

3. The road roller for municipal engineering road construction according to claim 2, characterized in that: The top of the fixed rod is provided with a first limiting plate, so that the upper part of the fixed rod is always located within the limiting frame. When the pressure of the secondary pressure is equal to the weight of the secondary pressure structure, the first limiting plate is attached to the bottom of the inner side of the limiting frame. The first spring serves as a buffer and a support for providing support for the moving part.

4. The road roller for municipal engineering road construction according to claim 1, characterized in that: The output end of the vertical telescopic mechanism is connected to a horizontal plate, and the end of the horizontal plate away from the output end of the vertical telescopic mechanism passes through the vertical rod and can slide up and down along the vertical rod.

5. The road roller for municipal engineering road construction according to claim 4, characterized in that: The bottom of the vertical rod is fixed to the top of the limiting frame, and a second limiting plate is provided at the top of the vertical rod.

6. The road roller for municipal engineering road construction according to claim 5, characterized in that: The second elastic element is a second spring, which is sleeved on the vertical rod. One end of the spring is connected to the second limiting plate, and the other end is connected to the horizontal plate. When the pressure is equal to the weight of the pressure structure, the horizontal plate is attached to the top surface of the limiting frame, and the second elastic element is in a normal extension and contraction state.

7. The road roller for municipal engineering road construction according to claim 6, characterized in that: The bottom of the vertical rod is fitted with a rubber block to prevent the horizontal plate from rigidly colliding with the limiting frame.

8. The road roller for municipal engineering road construction according to claim 1, characterized in that: A cleaning mechanism for scraping off substances adhering to the vibrating roller is provided in front of the vibrating roller. The cleaning mechanism includes a scraper and a support frame fixed on the connecting frame for supporting the scraper. A third spring is also provided between the scraper and the support frame to keep the scraper in contact with the outer wall of the vibrating roller.

9. The road roller for municipal engineering road construction according to claim 1, characterized in that: A debris removal mechanism is also provided in front of the vibratory compaction structure to move debris in front of the compaction equipment to both sides of the equipment along the compaction direction. The debris removal mechanism is connected to the connecting frame through a connecting component, and the height of the debris removal mechanism can be adjusted by adjusting the state of the connecting component.

10. The road roller for municipal engineering road construction according to claim 9, characterized in that: The obstacle removal mechanism includes an obstacle removal baffle fixed between two connecting components and a rotating rod rotatably connected to the two connecting components; the rotating rod is provided with spiral fan blades rotating in opposite directions, so that when the rotating rod rotates and drives the spiral fan blades to rotate, the debris moves to both sides of the road rolling equipment.

Images