Intelligent high-stability laser leveling machine

Abstract

The application relates to the field of leveling machines and discloses an intelligent high-stability laser leveling machine, which comprises a leveling machine head, an adjustable driving arm and a vehicle body, the adjustable driving arm is provided with a damping frame, the leveling machine head comprises a fixed plate, a first lifting frame, a scraper and a stirring mechanism, the fixed plate is connected to the lower end of the damping frame, the fixed plate is provided with a first lifting driving mechanism, the first lifting frame is connected to the power output end of the first lifting driving mechanism, the scraper is installed on the first lifting frame, the stirring mechanism comprises a second lifting frame, a first motor, a stirring shaft and a stirring claw, the first lifting frame is provided with a second lifting driving mechanism, the second lifting frame is connected to the second lifting driving mechanism, the stirring shaft is rotationally connected to the second lifting frame, the first motor is connected to the second lifting frame and drives the stirring shaft to rotate, the stirring claw is connected to the stirring shaft, and the first lifting frame is provided with a screening claw which is arranged at intervals from the stirring claw. The integrated leveling machine head is adopted, and the overall construction efficiency and stability are improved.

Description

Technical Field

[0001] This invention relates to the field of leveling machine technology, specifically to an intelligent, high-stability laser leveling machine. Background Technology

[0002] Currently, existing laser screed machines used in road, stadium, and open-air plaza paving projects primarily focus on surface leveling and vibratory compaction. Their working principle mainly involves receiving a reference laser signal in real-time via a laser receiver to precisely control the lifting and lowering of the screed plate. Simultaneously, a vibrating motor drives the screed plate to vibrate at high frequency, compacting the surface and achieving a smooth surface for roads, sports fields, and other paving projects. However, in the actual construction of outdoor projects such as road paving, stadium flooring, and municipal open-air plazas, existing laser screed machines suffer from numerous technical deficiencies due to complex factors such as raw material ratios, long-distance transportation losses, and the outdoor construction environment. These limitations make it difficult to meet the high-standard quality requirements of road engineering and sports field paving construction. Specific drawbacks are as follows:

[0003] Firstly, concrete used in road and stadium paving construction is highly susceptible to segregation and aggregate stratification during long-distance transportation, on-site storage, and large-area pouring. Furthermore, outdoor construction is affected by environmental factors such as day-night temperature differences, direct sunlight, and strong winds, and the fast-paced, segmented pouring nature of road construction makes the concrete prone to premature setting and localized initial setting. If existing laser screed machines are used directly for road paving leveling, the unset concrete will segregate, resulting in uneven component distribution, while the initially set concrete cannot be effectively leveled and compacted using conventional screeds. This will not only cause uneven density and insufficient structural strength in the road base and stadium paving, but also lead to surface cracking, sandblasting, and poor flatness, directly affecting road traffic performance and stadium durability. It will also result in concrete waste, construction delays, and severely restrict the overall construction progress and quality of roads and sports venues. Existing laser screed machines do not integrate mixing functions for the characteristics of road pavement construction, and cannot simultaneously perform secondary mixing and homogenization of the pavement concrete during screeding operations. This makes it difficult to fundamentally solve the construction pain points of concrete segregation and premature setting.

[0004] Secondly, the concrete raw materials used in road and stadium paving projects often contain large stone particles that exceed the allowable particle size in the construction specifications. These large-diameter aggregates will directly affect the density and smoothness of the paving surface. Existing laser screed machines rely solely on a single vibration compaction mechanism to process concrete. This results in limited vibration depth for thick road paving and stadium base layers, and insufficient compaction targeting. Large aggregates cannot be completely compacted into the concrete base layer, leaving some on the surface or in the middle. This leads to defects such as bumps, potholes, and rough surfaces on the screed road surface and sports field flooring, failing to meet the standards for road traffic and sports field use in terms of smoothness and evenness. Furthermore, the residual large aggregates disrupt the uniformity of the concrete's internal structure, reducing the base layer's density and load-bearing capacity. This can cause subsequent road cracking, damage, and settlement, and sports fields may experience unevenness and structural loosening, significantly shortening the project's lifespan. Consequently, these machines cannot meet the demands of high-load-bearing and high-smoothness paving construction scenarios such as municipal arterial roads, heavy-duty traffic roads, and professional stadiums.

[0005] In summary, existing laser screed machines used in roads, stadiums, and similar paving projects lack the concrete mixing and homogenization functions and large stone particle screening and guidance capabilities required for outdoor paving construction. This makes them ineffective in addressing issues such as poor paving quality, low work efficiency, and insufficient project durability caused by concrete segregation, premature setting, and large stone particle residue. Consequently, they are ill-suited to the high-quality, high-efficiency, and high-stability construction demands of modern road construction and sports field building. Therefore, developing an intelligent, highly stable laser screed machine suitable for road and stadium paving construction, capable of simultaneously achieving homogenization, large stone particle screening, and high-precision screeding, has become a pressing technical challenge for those skilled in the art.

[0006] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to this case. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an intelligent, highly stable laser leveling machine that can effectively solve the aforementioned technical problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A smart, high-stability laser leveling machine includes a leveling head, an adjustable drive arm, and a vehicle body. The adjustable drive arm is fixedly connected to the front end of the vehicle body, and a vibration damping frame is provided at the front end of the adjustable drive arm. The leveling head includes a fixed plate, a first lifting frame, a scraper, and a tumbling mechanism. The fixed plate is connected to the lower end of the vibration damping frame, and the fixed plate is provided with the first lifting drive mechanism. The first lifting frame is connected to the power output end of the lifting drive mechanism. The scraper is installed on the first lifting frame. The tumbling mechanism includes a second lifting frame, a first motor, a tumbling shaft, and tumbling claws. The first lifting frame is provided with the second lifting drive mechanism, and the second lifting frame is connected to the second lifting drive mechanism. The tumbling shaft is rotatably connected to the second lifting frame. The first motor is connected to the second lifting frame and drives the tumbling shaft to rotate. The tumbling claws are connected to the tumbling shaft, and the first lifting frame is provided with screening claws spaced apart from the tumbling claws.

[0010] Furthermore, the tumbling claws are evenly distributed around the outer circumference of the tumbling shaft, and are evenly arranged along the axis of the tumbling shaft, with clearance space between the tumbling claws.

[0011] Furthermore, the first lifting frame includes a horizontal plate and a vertical plate connected vertically. A vibration motor is provided on the horizontal plate, a scraper is connected to the vertical plate, and a connecting plate is also provided on the vertical plate. Screening claws are arranged on the connecting plate and are correspondingly arranged on the side of the clearance space.

[0012] Furthermore, the stirring claws are designed to extend in an arc shape.

[0013] Furthermore, the screening claw extends in an arc shape, with the end of the screening claw near the agitator claw bent upwards.

[0014] Furthermore, the first lifting drive mechanism includes a mounting base and a first cylinder. The mounting base is symmetrically arranged on the upper surface of the fixed plate, the first cylinder is connected to the mounting base, and the piston rod of the first cylinder is connected to the upper surface of the horizontal plate.

[0015] Furthermore, the second lifting drive mechanism includes a second cylinder, which is symmetrically arranged on the first lifting frame, and the piston rod of the second cylinder is connected to the upper end of the second lifting frame.

[0016] Furthermore, the second lifting frame has an arc-shaped baffle on the side away from the vertical plate.

[0017] Furthermore, the vibration damping frame includes an upper support, vertical rods, an adapter, a first vibration damping component, and a second vibration damping component. The upper support is connected to the front end of the adjustable drive arm. The vertical rod array is distributed at the lower end of the upper support. Adjacent vertical rods are connected through the first vibration damping component. The second vibration damping component is connected to the lower end of the vertical rods. The adapter is connected to the second vibration damping component.

[0018] Furthermore, the first vibration damping component includes a support rod and an outer casing. Two adjacent vertical rods are provided with staggered connecting ears. The two ends of the support rod are fixedly connected to the connecting ears on the two adjacent vertical rods. Several reinforcing ribs are provided on the outer wall of the support rod. The outer casing is fitted onto the support rod and is filled with polyurethane material.

[0019] This invention provides an intelligent, highly stable laser leveling machine. It has the following beneficial effects:

[0020] This invention, by setting up a stirring mechanism consisting of a first motor, a stirring shaft, and stirring claws, can actively stir the concrete before and during the leveling operation, breaking the segregation and stratification state formed in the concrete during transportation and pouring, and ensuring the uniform distribution of cement, sand, gravel, and water components. At the same time, the continuous stirring action can effectively slow down the setting speed of the concrete, avoiding the problem of premature setting of concrete due to construction rhythm and ambient temperature, which makes leveling impossible. This solves the pain point of existing equipment that can only level and cannot deal with concrete segregation and premature setting, reduces material waste and construction delays, and improves the overall density and strength of the concrete base layer.

[0021] This invention utilizes a design that combines agitating claws and arc-shaped screening claws at intervals. After the agitating claws tumble the concrete, concrete particles of the correct size can pass through the gaps in the screening claws and fall back down. Larger particles exceeding construction specifications are intercepted by the screening claws and slide away from the work surface along the arc-shaped screening claws, achieving a workflow of screening, agitation, and leveling. Compared to existing equipment that relies solely on vibration compaction and fails to push large particles to the bottom, easily leading to surface bumps and pits, this invention eliminates large particle impurities at the source during leveling, ensuring the flatness of the concrete surface. It also prevents large particle residue from damaging the internal structure of the concrete, improving the load-bearing strength and durability of the base layer, and meeting the needs of high-intensity construction scenarios such as heavy-duty industrial flooring.

[0022] This invention features a vibration damping frame composed of a first vibration damping component and a second vibration damping component. This effectively absorbs the vibration energy generated during the operation of the leveling machine head, converting the kinetic energy of severe vibration into plastic deformation energy and damping dissipation energy, achieving multi-directional and multi-level vibration damping effects. Compared to existing equipment where vibration is directly transmitted to the drive arm and body, easily leading to loosening and deformation of equipment components and affecting leveling accuracy, this invention significantly reduces the impact of vibration on the adjustable drive arm and body, avoids bending deformation of components such as vertical rods under long-term vibration, ensures the operational accuracy of the leveling machine head, and improves the overall service life and operational stability of the equipment. Furthermore, the first and second vibration damping components are connected by screws, allowing for easy disassembly and replacement when they are damaged due to excessive vibration force and plastic deformation, making operation more convenient.

[0023] This invention achieves independent lifting and adjustment of the first and second lifting frames through a first lifting drive mechanism and a second lifting drive mechanism, respectively. This allows for flexible adjustment of the mixing depth and leveling height based on the concrete pouring thickness and slump. Simultaneously, the spacing between the mixing claws and the screening claws can be selected as needed to adapt to different construction specifications regarding aggregate particle size requirements. Furthermore, the adjustable drive arm achieves precise adjustment of the telescopic distance through a horizontal drive component, and the chain tension can be adjusted through a tensioning component, adapting to the working distance requirements of different construction scenarios such as factories, roads, and multi-story buildings. Compared to the limitations of existing equipment with its single function and poor adjustability, this invention's interconnected and independently adjustable operating components significantly improve the equipment's construction adaptability and operational flexibility.

[0024] The stirring claws and screening claws of this invention both adopt an arc-shaped structure design, which not only improves the stirring and screening effect but also reduces direct hard contact with concrete and aggregates, thus reducing component wear. Compared with the problems of easy wear and difficult maintenance of existing equipment, the structural design of this invention further improves the durability of the equipment and reduces the maintenance cost.

[0025] This invention integrates mixing, screening, vibration, and leveling functions into the leveling head. During its movement, the equipment can complete the entire process of concrete mixing, large aggregate screening, vibration compaction, and surface leveling in one operation, eliminating the need for additional mixing and screening processes and equipment. Compared to existing equipment that requires multiple devices and processes, this significantly shortens the construction cycle and improves overall construction efficiency. Furthermore, the equipment's automatic mixing, screening, and adjustable design reduce operator intervention in the concrete's condition and subsequent repair work, effectively reducing labor intensity. Attached Figure Description

[0026] Figure 1 This is a perspective view of the external structure of the present invention;

[0027] Figure 2 A three-dimensional view of the external structure of the leveling machine head;

[0028] Figure 3 A three-dimensional cross-sectional view of the leveling joint;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the adjustable drive arm;

[0030] Figure 5 This is a three-dimensional view of the external structure of the vibration damper frame;

[0031] Figure 6 This is a schematic cross-sectional view of the first vibration damping component;

[0032] Figure 7 This is a schematic cross-sectional view of the second vibration damping component;

[0033] Figure 8 for Figure 4 A magnified view of a portion of region A in the middle.

[0034] The components include: a leveling machine head 1, a fixed plate 11, a first lifting frame 12, a horizontal plate 121, a vertical plate 122, a vibrating motor 123, a connecting plate 124, a scraper 13, a mounting base 14, a first cylinder 15, an adjustable drive arm 2, a main arm body 21, a positioning groove 211, a drive support arm 22, a guide chain block 221, a chain 231, a second motor 232, a first gear 233, a second gear 234, a drive gear 235, a positioning plate 241, a positioning rod 242, a tensioning block 251, a tensioning gear 252, a lead screw 253, and a tensioning seat 25. 4. Car body; 3. Vibration damping frame; 4. Upper bracket; 41. Vertical rod; 42. Connecting ear; 421. Adapter seat; 43. Tumbling mechanism; 5. Second lifting frame; 51. Arc-shaped baffle; 511. First motor; 52. Tumbling shaft; 53. Tumbling claw; 54. Screening claw; 55. Second cylinder; 56. First vibration damping assembly; 6. Support rod; 61. Reinforcing rib; 611. Outer shell; 62. Second vibration damping assembly; 7. Lower base; 71. Upper base; 72. Sleeve; 73. Connecting rod; 74. Iron sheet; 75. Elastic sheet; 76. Top seat; 77. Top rod; 78. Arc-shaped plate; 781. Connecting column; 79. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see the appendix Figure 1 -Appendix Figure 8This invention provides an intelligent, high-stability laser leveling machine, including a leveling head 1, an adjustable drive arm 2, and a vehicle body 3. The adjustable drive arm 2 is fixedly connected to the front end of the vehicle body 3, and the adjustable drive arm 2 can adjust the driving distance. A vibration damping frame 4 is provided at the front end of the adjustable drive arm 2, which can play a shock-absorbing role and reduce the vibration impact on the adjustable drive arm 2 and the vehicle body 3. The leveling head 1 includes a fixed plate 11, a first lifting frame 12, a scraper 13, and a stirring mechanism 5. The fixed plate 11 is fixedly connected to the lower end of the vibration damping frame 4. The fixed plate 11 is provided with a first lifting drive mechanism. The first lifting frame 12 is connected to the power output end of the first lifting drive mechanism. The scraper 13 is installed on the first lifting frame 12. The stirring mechanism 5 includes a second lifting frame 51, a first motor 52, a stirring shaft 53, and stirring claws 54. The first lifting frame 12 is provided with a second lifting drive mechanism. The second lifting frame 51 is connected to the second lifting drive mechanism. The stirring shaft 53 is rotatably connected to the second lifting frame 51. The first motor 52 is connected to the side of the second lifting frame 51. The output shaft of the first motor 52 is connected to the stirring shaft 53, thereby driving the stirring shaft 53 to rotate. The stirring claws 54 are connected to the stirring shaft 53. The first lifting frame 12 is provided with screening claws 55 spaced apart from the stirring claws 54. The first and second lifting drive mechanisms enable independent lifting and adjustment of the first lifting frame 12 and the second lifting frame 51, respectively, allowing for flexible adjustment of the mixing depth and leveling height based on the concrete pouring thickness and slump. The adjustable drive arm 2 drives the scraper 13 to move horizontally, leveling the concrete.

[0037] In this embodiment, the agitating claws 54 are evenly distributed around the outer circumference of the agitating shaft 53, and are evenly arranged along the axis of the agitating shaft 53, with clearance space between them. The agitating claws 54 extend in an arc shape. Thus, when the first motor 52 drives the agitating shaft 53 to rotate, the agitating claws 54 can cause the concrete to tumble, thus achieving a mixing effect. Furthermore, the first lifting frame 12 includes a horizontal plate 121 and a vertical plate 122 connected vertically. A vibration motor 123 is mounted on the horizontal plate 121, which can drive the scraper 13 to vibrate. The scraper 13 is connected to the vertical plate 122, which also has a connecting plate 124. Screening claws 55 are arranged on the connecting plate 124, corresponding to the sides of the clearance space. The screening claws 55 extend in an arc shape, with the end of the screening claw 55 near the agitating claw 54 bent upwards. The spacing between the agitating claw 54 and the screening claw 55 can be selected according to requirements. Before or during leveling, the agitating claw 54 agitates the concrete, bringing it onto the screening claw 55. The concrete can then pass through the gaps between the screening claws 55 and fall back to the ground. When there are large stones in the concrete, they can be isolated on the screening claw 55, and because the screening claw 55 extends in an arc shape, the large stones can slide away from the agitating claw 54. Repeating the above steps can remove large stones from the concrete.

[0038] In this embodiment, the first lifting drive mechanism includes a mounting base 14 and a first cylinder 15. The mounting base 14 is symmetrically arranged on the upper surface of the fixed plate 11, and the first cylinder 15 is connected to the mounting base 14. The piston rod of the first cylinder 15 is connected to the upper surface of the horizontal plate 121. The first cylinder 15 can drive the first lifting frame 12 to move up and down. The second lifting drive mechanism includes a second cylinder 56, which is symmetrically arranged on the first lifting frame 12. The piston rod of the second cylinder 56 is connected to the upper end of the second lifting frame 51. The second cylinder 56 can drive the second lifting frame 51 to move up and down. An arc-shaped baffle 511 is provided on the side of the second lifting frame 51 away from the vertical plate 122. The arc-shaped baffle 511 can prevent concrete from splashing during the mixing process.

[0039] In this embodiment, to reduce the vibration impact of the leveling machine head 1 on the adjustable drive arm 2 during operation, a vibration damping frame 4 includes an upper support 41, vertical rods 42, an adapter 43, a first vibration damping component 6, and a second vibration damping component 7. The upper support 41 is connected to the front end of the adjustable drive arm 2. The vertical rods 42 are arranged in an array at the lower end of the upper support 41. Adjacent vertical rods 42 are connected by the first vibration damping component 6. The second vibration damping component 7 is connected to the lower end of the vertical rods 42, and the adapter is connected to the second vibration damping component 7. Specifically, the first vibration damping component 6 includes a support rod 61 and an outer casing 62. The support rod 61 is made of low yield strength steel. Two adjacent vertical rods 42 are provided with staggered connecting lugs 421. Both ends of the support rod 61 are fixed to the connecting lugs 421 on the two adjacent vertical rods 42 by screws, allowing the support rod 61 to be inclined between the two adjacent vertical rods 42, providing a certain support effect. Several reinforcing ribs 611 are provided on the outer wall of the support rod 61. The outer casing 62 is fitted onto the support rod 61 and filled with polyurethane material. With this structure, when the leveling machine head 1 vibrates, the vertical rods 42 will vibrate and shift relative to each other. Because the support rod 61 provides inclined support, it can limit and constrain the vertical rods 42 in multiple directions, providing effective support and preventing the vertical rods 42 from bending and deforming under long-term vibration. Furthermore, both ends of the support rod 61 are subjected to compressive and tensile forces. Since the support rod 61 is made of low yield strength steel, when its bending deformation reaches a threshold, it will enter a state of plastic deformation before the vertical rod 42, thereby converting the kinetic energy generated by the violent vibration into plastic deformation energy for energy dissipation. The reinforcing rib 611 and the outer sleeve 62 work together to effectively limit the twisting and lateral instability of the support rod 61. The outer sleeve 62, through its rigid constraint characteristics, ensures that the support rod 61 only bends and deforms in a predetermined direction. The polyethylene foam filling the gap between the support rod 61 and the outer sleeve 62 serves two purposes: firstly, it buffers the contact friction between the two during structural vibration; secondly, it provides slight damping when the support rod 61 deforms, thus dissipating vibrational force.

[0040] In this embodiment, the second vibration damping component 7 includes a lower base 71, an upper base 72, and a sleeve 73. A connecting rod 74 is provided at the upper end of the lower base 71, and the connecting rod 74 is fixedly connected to the lower end of the upper base 72. Iron plates 75 and elastic plates 76 are spaced on the connecting rod 74. The sleeve 73 is fitted over the iron plates 75 and elastic plates 76, providing constraint and sealing. The sleeve 73 can be made of rubber, and the elastic plates 76 can be made of rubber sheets. The lower base 71 also has several abutment seats 77. Each abutment seat 77 has a slidingly connected abutment rod 78 at its upper end. An arc-shaped plate 781 is provided at the front end of the abutment rod 78, and a spring is fitted on the abutment rod 78. One end of the spring abuts against the arc-shaped plate 781, and the other end of the spring abuts against the abutment seat 77. Connecting columns 79 are arrayed on the lower surface of the lower base 71 and the upper surface of the upper base 72. The connecting columns 79 of the lower base 71 are fixedly connected to the adapter 43, and the connecting columns 79 of the upper base 71 are fixedly connected to the lower end of the vertical rod. With the above structure, when the leveling head 1 vibrates violently, the iron sheet 75 and the elastic sheet 76 can deform in the direction of vibration, transmitting the vibration force to the elastic sheet 76, causing the elastic sheet 76 to stretch and shift. The iron sheet 75 can also constrain the elastic sheet 76. During the vibration, the upper base 72 and the lower base 71 can also undergo relative displacement, consuming and dispersing the vibration force. This further reduces the vibration force on the upper support 41 and the adjustable drive arm 2. Furthermore, when the sleeve 73 sways, the abutment plate can abut against it through the elastic force of the spring, supporting the sleeve 73. During this process, the vibration force on the lower end of the adapter 43 can be further offset, thereby improving the vibration damping effect of the vibration damping frame 4.

[0041] In this embodiment, to facilitate the adjustment of the movement distance of the leveling head 1 and further improve the stability of the leveling machine, the adjustable drive arm 2 includes a main arm body 21 and a drive support arm 22. The drive support arm 22 is slidably connected to the main arm body 21. The lower surface of the drive support arm 22 is provided with symmetrically arranged guide wheel grooves. The lower end of the main arm body 21 is provided with several sets of symmetrically arranged rollers, which roll in cooperation with the guide wheel grooves. Furthermore, guide grooves are provided on both side walls of the drive support arm 22, and horizontally arranged guide blocks are provided on the inner side wall of the main arm body 21. The guide blocks slide in cooperation with the guide grooves, thereby guiding and limiting the movement of the drive support arm 22.

[0042] The drive arm 22 is driven by a horizontal drive assembly, which includes a chain 231, a second motor 232, a first gear 233, a second gear 234, a positioning assembly, and a drive gear 235. The positioning assembly includes a positioning plate 241 and a positioning rod 242. The main arm body 21 has several positioning slots 211. The positioning plate 241 is embedded and fixedly connected in the positioning slots 211. There are two positioning plates 241. The positioning rod 242 is fixedly connected below the positioning plate 241. The two ends of the chain 231 are fixedly connected to the two positioning rods 242 respectively. The first gear 233 is rotatably connected to the front end of the drive arm 22, and the second gear 234 is rotatably connected to the rear end of the drive arm 22. The second motor 232 is fixedly installed in the drive arm 22. The output shaft of the second motor 232 is provided with a drive gear 235. The chain 231 is wound around the first gear 233 and the drive gear 235 for meshing and transmission. The second gear 234 meshes with the chain 231. Furthermore, the drive arm 22 is internally equipped with a chain guide block 221, which slides in conjunction with the chain 231. With this structure, the second motor 232 rotates the drive gear 235, which drives the chain 231 during forward or reverse rotation. Since both ends of the chain 231 are fixedly connected to the main arm body 21, the chain 231 can drive the drive arm 22 to move back and forth during movement. Moreover, by adjusting the mounting position of the positioning plate 241 on the main arm body 21, the movement distance and extension distance of the drive arm 22 can be adjusted. This improves the adjustability and applicability of the drive arm while meeting structural strength requirements, further enhancing the working stability of the leveling machine.

[0043] In addition, the horizontal drive assembly also includes a tension block 251, a tension gear 252, a lead screw 253, and a tension seat 254. The tension seat 254 is connected to the upper end of the drive arm 22. The tension block 251 and the tension seat 254 are slidably connected vertically. The lead screw 253 is rotatably connected to the tension seat 254 and threadedly connected to the tension block 251. The tension block 251 is provided with a rotatably connected shaft. The tension gear 252 is sleeved on the shaft and meshes with the chain 231 for transmission. With the above structure, the vertical position of the tension gear 252 can be adjusted by rotating the lead screw 253, thereby adjusting the tension of the chain 231.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart, high-stability laser leveling machine, characterized in that, The machine includes a leveling head, an adjustable drive arm, and a vehicle body. The adjustable drive arm is fixedly connected to the front end of the vehicle body, and a vibration damping frame is provided at the front end of the adjustable drive arm. The leveling head includes a fixed plate, a first lifting frame, a scraper, and a tumbling mechanism. The fixed plate is connected to the lower end of the vibration damping frame, and the fixed plate is provided with a first lifting drive mechanism. The first lifting frame is connected to the power output end of the first lifting drive mechanism. The scraper is installed on the first lifting frame. The tumbling mechanism includes a second lifting frame, a first motor, a tumbling shaft, and tumbling claws. The first lifting frame is provided with a second lifting drive mechanism, and the second lifting frame is connected to the second lifting drive mechanism. The tumbling shaft is rotatably connected to the second lifting frame. The first motor is connected to the second lifting frame and drives the tumbling shaft to rotate. The tumbling claws are connected to the tumbling shaft, and the first lifting frame is provided with screening claws spaced apart from the tumbling claws. The vibration damping frame includes an upper support, vertical rods, an adapter, a first vibration damping component, and a second vibration damping component. The upper support is connected to the front end of the adjustable drive arm. The vertical rods are arranged in an array at the lower end of the upper support. Adjacent vertical rods are connected by the first vibration damping component. The second vibration damping component is connected to the lower end of the vertical rods. The adapter is connected to the second vibration damping component. The first vibration damping component includes a support rod and an outer shell. Two adjacent vertical rods are provided with staggered connecting ears. The two ends of the support rod are fixedly connected to the connecting ears on the two adjacent vertical rods. Several reinforcing ribs are provided on the outer wall of the support rod. The outer shell is fitted onto the support rod and is filled with polyurethane material.

2. The intelligent high-stability laser leveling machine according to claim 1, characterized in that, The tumbling claws are evenly distributed around the outer circumference of the tumbling shaft, and are evenly arranged along the axis of the tumbling shaft, with clearance space between the tumbling claws.

3. The intelligent high-stability laser leveling machine according to claim 2, characterized in that, The first lifting frame includes a horizontal plate and a vertical plate connected vertically. A vibration motor is installed on the horizontal plate, a scraper is connected to the vertical plate, and a connecting plate is also provided on the vertical plate. Screening claws are arranged on the connecting plate and are correspondingly set on the side of the clearance space.

4. The intelligent high-stability laser leveling machine according to claim 3, characterized in that, The stirring claws are designed to extend in an arc shape.

5. The intelligent high-stability laser leveling machine according to claim 4, characterized in that, The screening claw extends in an arc shape, with the end of the screening claw near the agitator claw bent upwards.

6. The intelligent high-stability laser leveling machine according to claim 5, characterized in that, The first lifting drive mechanism includes a mounting base and a first cylinder. The mounting base is symmetrically arranged on the upper surface of the fixed plate, and the first cylinder is connected to the mounting base. The piston rod of the first cylinder is connected to the upper surface of the horizontal plate.

7. The intelligent high-stability laser leveling machine according to claim 6, characterized in that, The second lifting drive mechanism includes a second cylinder, which is symmetrically arranged on the first lifting frame, and the piston rod of the second cylinder is connected to the upper end of the second lifting frame.

8. The intelligent high-stability laser leveling machine according to claim 7, characterized in that, The second lifting frame has an arc-shaped baffle on the side away from the vertical plate.

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