Steel wheel of asphalt mixture compacting device

Abstract

A steel wheel of an asphalt mixture compaction device comprises a wheel body, a left wheel carrier, a right wheel carrier, a walking assembly, a vibration assembly and a radial plate set. The left and right wheel carriers comprise a left wheel carrier positioned at the left end of the wheel body and a right wheel carrier positioned at the right end of the wheel body; the rotating speed sensing assembly comprises a plurality of magnetic field sensors and magnetic bodies, the magnetic field sensors are connected to the left wheel carrier and the right wheel carrier and are in communication connection with a controller of the compaction device, and the magnetic bodies are fixedly connected to the inner walls of the wheel bodies; the axis direction of the magnetic field sensor coincides with the radial direction of the wheel body, and the head end of the magnetic field sensor is aligned with the inner wall of the wheel body. The magnetic bodies are divided into a plurality of circles, and each circle of magnetic bodies are arranged in a circumferential array mode in the circumferential direction of the wheel body. When the compaction device is used for testing the asphalt mixture, data such as cohesiveness embodied by the mixture during construction can be judged according to the rotating speed, and the implementation mode is simple and does not cause excessive change to the original structure of the steel wheel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the steel wheel field of asphalt compaction device, concretely relates to a steel wheel of asphalt mixture compaction device. BACKGROUND

[0002] The compaction device is a mechanical equipment for compacting various building and road construction materials by using its own gravity and vibration, and one type of the compaction device is a rolling machine, and the most important structure of the rolling machine is a vibrating steel wheel connected to the front of the machine body, so that the vibrating steel wheel is used to flatten the passing plane by its self-weight and vibration during the running.

[0003] The rolling machine is not used for on-site construction, and is often used in material testing of engineering enterprises. The enterprise can test the actual paving and compaction effect of some asphalt mixture by using the compaction machine, and the volume of the compaction machine is relatively small, but the rotation and amplitude of the compaction machine steel wheel are required to be higher.

[0004] The Chinese patent with the patent number ZL 202323047414.3 discloses: "an asphalt pavement compaction device, comprising a road roller; the road roller is provided with a compaction assembly at one end, and the compaction assembly comprises a steel wheel for compacting asphalt pavement; the road roller is provided with a spraying assembly, and the spraying assembly comprises a spray head for cooling the steel wheel; the road roller is fixedly connected with a fixed block above the steel wheel on one side; the fixed block is provided with a plurality of fixed blocks and is symmetrically arranged on the road roller; the fixed block is fixedly connected with an expansion plate; the expansion plate is fixedly connected with a scraper at the output end; the scraper at the bottom of the expansion plate is close to the steel wheel through the expansion and contraction of the expansion plate on the fixed block, and the asphalt adhered to the steel wheel is scraped off with the rotation of the steel wheel, so that the height difference of the road roller steel wheel is avoided, the asphalt pavement can be completely rolled into place by the steel wheel, and the phenomena such as segregation and loose are prevented".

[0005] However, the existing compaction devices with steel wheels on the market have a problem, that is, since the design of the compaction device is initially used for on-site construction, there is no monitoring of the trial operation data of the compaction device steel wheel, but since the compaction device is used for experimental testing of asphalt mixture, the collection of data such as steel wheel speed and amplitude becomes particularly important. SUMMARY

[0006] In order to overcome the deficiency that the compaction device in the prior art lacks data collection of speed and amplitude and cannot be used for experimental testing of asphalt mixture, the utility model provides a steel wheel of asphalt mixture compaction device.

[0007] The technical scheme for solving the technical problem of the utility model is: a steel wheel of asphalt mixture compaction device, comprising:

[0008] wheel body;

[0009] left and right wheel frames, which include a left wheel frame at the left end of the wheel body and a right wheel frame at the right end of the wheel body;

[0010] a walking assembly inside the wheel body and connected with the left wheel frame, which includes a walking motor and a speed reducer;

[0011] a vibration assembly inside the wheel body and connected with the right wheel frame, which includes a vibration motor, a vibration shaft, a coupling and a vibrating member, the vibration shaft being connected with the output shaft of the vibration motor and further connected with the vibrating member through the coupling;

[0012] a spoke set, which includes a left spoke and a right spoke, the left spoke being connected with the walking assembly and the right spoke being connected with the vibration assembly, the left spoke and the right spoke being further connected through a plurality of connecting shafts, and the outer circumferential sides of the left spoke and the right spoke being in abutment with the inner wall of the wheel body;

[0013] further comprising:

[0014] a rotating speed sensing assembly, which includes a plurality of magnetic field sensors and magnetic bodies, the magnetic field sensors being connected with the left and right wheel frames and being in communication connection with the controller of the compaction device, and the magnetic bodies being fixedly connected with the inner wall of the wheel body;

[0015] the axis direction of the magnetic field sensors coincides with the radial direction of the wheel body, and the head end of the magnetic field sensors is aligned with the inner wall of the wheel body;

[0016] the magnetic bodies are divided into a plurality of circles, and each of the magnetic bodies is arranged in a circumferential array around the circumferential direction of the wheel body.

[0017] Further, a magnetic field sensor is connected with each of the left wheel frame and the right wheel frame, the head end of the magnetic field sensor on the left wheel frame facing in the opposite direction to the head end of the magnetic field sensor on the right wheel frame, and a circle of magnetic bodies is installed on the inner wall of each of the left end and the right end of the wheel body.

[0018] Further, each of the magnetic bodies has an N-pole and an S-pole, and the length direction of the magnetic bodies is arranged along the axial direction of the wheel body, so that the magnetic pole at one end of the magnetic body faces the left end of the wheel body, the magnetic pole at the other end of the magnetic body faces the right end of the wheel body, and the magnetic poles of adjacent two magnetic bodies in the same circle face in opposite directions.

[0019] Further, the side of the left wheel frame and the right wheel frame is outwardly convexly provided with a mounting seat, a mounting hole is formed through the mounting seat from inside to outside, the magnetic field sensor passes through the mounting hole from inside to outside to be connected to the mounting seat, mounting fins are further convexly provided on the two sides of the magnetic field sensor, first through holes are formed through the mounting fins for bolts to pass through, and the mounting fins can be attached to the inner side of the mounting seat, so that the mounting fins can be fixed to the inner side of the mounting seat through the bolts.

[0020] Further, a plurality of mounting boxes are further connected to the inner wall of the wheel body, the mounting boxes are open on one side, and the inner wall of the wheel body is connected to the open side of the mounting boxes through welding, so that a containing cavity is formed between the mounting boxes and the inner wall of the wheel body, and the magnetic body is located in the containing cavity.

[0021] Further, an amplitude sensing assembly is further included, the amplitude sensing assembly includes a plurality of laser sensors and a light-reflecting plate, the laser sensors are connected to the left and right wheel frames, and the light-reflecting plate is embedded on the top of the mounting box.

[0022] Further, mounting plates are further convexly provided on the top of the left wheel frame and the right wheel frame, second through holes are formed through the laser sensors for bolts to pass through, and the laser sensors can be attached to one side of the mounting plates, so that the laser sensors can be fixed to one side of the mounting plates through the bolts.

[0023] Further, a middle shaft plate is further included, the middle shaft plate is located between the left spoke plate and the right spoke plate, the middle shaft plate is connected to the circumferential side of the oscillating member, the connecting shafts are arranged on the two sides of the middle shaft plate, and the left spoke plate and the right spoke plate are connected to the middle shaft plate through the connecting shafts.

[0024] Further, a plurality of shock-absorbing blocks are arranged between the walking assembly and the left spoke plate and between the vibration assembly and the right wheel frame, the walking assembly is connected to the left spoke plate through the shock-absorbing blocks, and the vibration assembly is connected to the right wheel frame through the shock-absorbing blocks.

[0025] The use and detection process of the utility model are as follows:

[0026] In the process of re-compaction of the steel wheel, the vibration motor is started to drive the vibration shaft to rotate, the vibration shaft drives the oscillating member to rotate through the shaft coupling, the eccentric block in the oscillating member rotates and generates centrifugal force, so that the oscillating member can vibrate, and the oscillating mechanism transmits the vibration to the wheel body through the middle shaft plate, the left spoke plate and the right spoke plate, so that the wheel body can vibrate to compact the plane, and the walking motor can also be started in the vibration process, so that the whole wheel body can rotate in the vibration process.

[0027] And in the steel wheel compaction process wheel body will rotate relative to the left and right wheel frame, located on the inner wall of the wheel body magnetic block will also rotate, and align the inner wall of the wheel body magnetic field sensor can judge the rotation of the magnetic field intensity magnetic block, and then the rotation of the magnetic block feedback to the controller of the compaction device and thus calculate the current speed of the wheel body; And at the same time the wheel body will relative to the left and right wheel frame vibration of a certain amplitude, so the inner wall of the wheel body connected to the reflector will relative to the laser sensor connected to the left and right wheel frame radial movement, laser sensor can through the induction reflector reciprocating frequency and feedback to the controller of the compaction device, so as to determine the amplitude of the wheel body.

[0028] The beneficial effects of the utility model lie in:

[0029] 1、In left and right wheel frame is provided with magnetic field sensor, and fixed magnetic body on the inner wall of the wheel body, so as to through the induction of magnetic field sensor for the change of magnetic field to calculate the rotational speed of the wheel body, and then in the compaction device is used for asphalt mixture test, can judge the adhesion of the mixture in construction according to the rotational speed and other data, and the implementation mode is simple and will not cause too many changes to the original structure of steel wheel;

[0030] 2、The magnetic pole of the adjacent two magnetic bodies of the same circle magnetic body on the inner wall of the wheel body is set as opposite, so as to ensure that the magnetic field sensor can more accurately detect the rotation of each magnetic body during detection, even if the magnetic field of a magnetic body is not inducted due to vibration, the magnetic field sensor can also judge the induction omission through the change of magnetic field direction;

[0031] 3、The installation of magnetic field sensor on left and right wheel frame and the installation of magnetic body on the inner wall of the wheel body are very simple and stable, which reduces the installation difficulty and ensures the firmness of the rotational speed induction assembly during use;

[0032] 4、It is also provided with amplitude induction assembly, so that the strength and elasticity of the mixture in construction can be judged through the vibration of the wheel body. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the structure schematic diagram of the utility model.

[0034] Figure 2 It is the right side structure schematic diagram of the utility model.

[0035] Figure 3 It is the internal structure schematic diagram of the utility model.

[0036] Figure 4 It is the sectional view and partial enlarged view of the wheel body in the utility model.

[0037] Figure 5 is a structural schematic view of the right wheel frame in the utility model.

[0038] Figure 6 is a split schematic view of the magnetic field sensor and the laser sensor on the right wheel frame in the utility model.

[0039] Label in the figure: 1, wheel body; 2, left wheel frame; 3, right wheel frame; 4, walking motor; 5, speed reducer; 6, vibration motor; 7, vibration shaft; 8, shaft coupling; 9, oscillating member; 10, left spoke; 11, right spoke; 12, connecting shaft; 13, magnetic field sensor; 14, magnetic body; 15, mounting seat; 16, mounting hole; 17, mounting fin; 18, first through hole; 19, mounting box; 20, accommodating cavity; 21, laser sensor; 22, reflector; 23, mounting plate; 24, second through hole; 25, central shaft plate; 26, shock absorbing block. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0041] It should be understood that although the terms upper, middle, lower, top end, one end and the like appear in the present text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for the purpose of understanding, and are not used to define any directional or sequential limitation. EMBODIMENT

[0042] In combination with Figures 1 to 6The diagram shows a steel wheel for an asphalt mixture compaction device, comprising a wheel body 1, left and right wheel frames, a traveling assembly, a vibration assembly, and a spoke assembly. The left and right wheel frames include a left wheel frame 2 located at the left end of the wheel body 1 and a right wheel frame 3 located at the right end of the wheel body 1. The traveling assembly is located inside the wheel body 1 and connected to the left wheel frame 2, and includes a traveling motor and a reducer 5. The vibration assembly is located inside the wheel body 1 and connected to the right wheel frame 3, and includes a vibration motor, a vibration shaft 7, a coupling 8, and an agitator 9. The vibration shaft 7 is connected to the output shaft of the vibration motor and is also connected to the agitator 9 via the coupling 8. The spoke assembly includes a left spoke 10 and a right spoke 11, with the left spoke 10 connected to the traveling assembly. The right spoke 11 is connected to the vibration assembly, and the left spoke 10 is connected to the right spoke 11 by several connecting shafts 12. The outer periphery of the left spoke 10 and the right spoke 11 abuts against the inner wall of the wheel body 1. A speed sensing assembly is also included, comprising several magnetic field sensors 13 and magnetic bodies 14. The magnetic field sensors 13 are connected to the left and right wheel frames and communicate with the controller of the compaction device. The magnetic bodies 14 are fixedly connected to the inner wall of the wheel body 1. The axial direction of the magnetic field sensors 13 coincides with the radial direction of the wheel body 1, and the head end of the magnetic field sensors 13 is aligned with the inner wall of the wheel body 1. The magnetic bodies 14 are divided into several rings, and each ring of magnetic bodies 14 is arranged in a circular array around the circumference of the wheel body 1.

[0043] Combination Figure 1 and Figure 2 As shown, in this embodiment, a magnetic field sensor 13 is connected to the left wheel frame 2 and the right wheel frame 3 respectively, and the head end of the magnetic field sensor 13 on the left wheel frame 2 faces the opposite direction to the head end of the magnetic field sensor 13 on the right wheel frame 3. A ring of magnetic bodies 14 is installed on the inner wall of each of the left and right ends of the wheel body 1.

[0044] Among them, such as Figure 4 As shown in the figure, each of the magnetic bodies 14 in this embodiment has an N pole and an S pole, and the length direction of the magnetic body 14 is arranged along the axial direction of the wheel body 1, so that the magnetic pole at one end of the magnetic body 14 faces the left end of the wheel body 1, the magnetic pole at the other end faces the right end of the wheel body 1, and the magnetic poles of two adjacent magnetic bodies 14 in the same circle face opposite directions.

[0045] Combination Figure 5 and Figure 6As shown, in this embodiment, the side of the left wheel frame 2 and the right wheel frame 3 is also outwardly convexly provided with a mounting seat 15, and a mounting hole 16 is also formed through the mounting seat 15, the magnetic field sensor 13 is connected to the mounting seat 15 by penetrating the mounting hole 16 from inside to outside, and the mounting fin 17 is also convexly provided on the two sides of the magnetic field sensor 13, a first through hole 18 is formed through the mounting fin 17 for the bolt, and the mounting fin 17 can be attached to the inside of the mounting seat 15, so that the mounting fin 17 can be fixed to the inside of the mounting seat 15 by the bolt.

[0046] In combination Figure 1 and Figure 4 As shown, in this embodiment, the inner wall of the wheel body 1 is also connected with a plurality of mounting boxes 19, the mounting box 19 is open on one side, and the opening side of the mounting box 19 is connected with the inner wall of the wheel body 1 by welding, so that the accommodation cavity 20 is formed between the mounting box 19 and the inner wall of the wheel body 1, and the magnetic body 14 is located in the accommodation cavity 20.

[0047] In combination Figures 3 to 6 As shown, in this embodiment, the amplitude sensing assembly is also included, the amplitude sensing assembly includes a plurality of laser sensors 21 and a light board 22, the laser sensor 21 is connected to the left and right wheel frames, and the light board 22 is embedded on the top of the mounting box 19.

[0048] In combination Figure 5 and Figure 6 As shown, in this embodiment, the top of the left wheel frame 2 and the right wheel frame 3 is also convexly provided with a mounting plate 23, a second through hole 24 is formed through the laser sensor 21 for the bolt, and the laser sensor 21 can be attached to one side of the mounting plate 23, so that the laser sensor 21 can be fixed to one side of the mounting plate 23 by the bolt.

[0049] As shown in Figure 2 In this embodiment, a middle shaft plate 25 is also included, the middle shaft plate 25 is located between the left spoke plate 10 and the right spoke plate 11, the middle shaft plate 25 is connected to the circumferential side of the oscillating member 9, the connecting shaft 12 is arranged on the two sides of the middle shaft plate 25, and the left spoke plate 10 and the right spoke plate 11 are connected with the middle shaft plate 25 through the connecting shaft 12.

[0050] As shown in Figure 2 In this embodiment, a plurality of shock absorbing blocks 26 are arranged between the walking assembly and the left spoke plate 10 and between the vibration assembly and the right wheel frame 3, the walking assembly is connected with the left spoke plate 10 through the shock absorbing block 26, and the vibration assembly is connected with the right wheel frame 3 through the shock absorbing block 26.

[0051] In the embodiment, the exciting member 9 comprises an eccentric block, when the exciting member 9 rotates under the drive of the shaft coupling 8, the eccentric block in the exciting member 9 rotates axially, and the centrifugal force generated by the eccentric block forms the exciting.

[0052] The use and detection process of the embodiment:

[0053] In the process of the steel wheel re-compaction, the vibration motor is started to drive the vibration shaft 7 to rotate, the vibration shaft 7 drives the exciting member 9 to rotate through the shaft coupling 8, the eccentric block in the exciting member 9 rotates and generates centrifugal force, so that the exciting member 9 can vibrate, the exciting mechanism transmits the vibration to the wheel body 1 through the central shaft plate 25, the left spoke plate 10 and the right spoke plate 11, the wheel body 1 can vibrate to compact the plane, and the walking motor can be started to drive the whole wheel body 1 to rotate during the vibration process.

[0054] During the process of the steel wheel compaction, the wheel body 1 rotates relative to the left and right wheel frames, the magnetic block on the inner wall of the wheel body 1 also rotates, the magnetic field sensor aligned with the inner wall of the wheel body 1 can judge the rotation of the magnetic block according to the magnetic field intensity, and then feed back the rotation of the magnetic block to the controller of the compaction device to calculate the current rotating speed of the wheel body 1; at the same time, the wheel body 1 vibrates relative to the left and right wheel frames, so the reflecting plate 22 connected to the inner wall of the wheel body 1 moves radially relative to the laser sensor 21 connected to the left and right wheel frames, the laser sensor 21 can judge the amplitude of the wheel body 1 by sensing the reciprocating frequency of the reflecting plate 22 and feeding back to the controller of the compaction device.

[0055] The advantage of the embodiment is that, during the compaction process of the compaction device using the steel wheel, the rotating speed sensing assembly and the amplitude sensing assembly can sense and calculate the data of the asphalt mixture compacted by the steel wheel, so that the steel wheel can be better used for the detection of the asphalt mixture.

[0056] The above specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the person skilled in the art can make modifications to the embodiments without creative contribution according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A steel wheel of an asphalt mixture compactor, comprising: a wheel body (1); left and right wheel frames, including a left wheel frame (2) at a left end of the wheel body (1) and a right wheel frame (3) at a right end of the wheel body (1); a walking assembly inside the wheel body (1) and connected with the left wheel frame (2), the walking assembly including a walking motor (4) and a speed reducer (5); a vibration assembly inside the wheel body (1) and connected with the right wheel frame (3), the vibration assembly including a vibration motor (6), a vibration shaft (7), a coupling (8) and a vibrating member (9), the vibration shaft (7) being connected with an output shaft of the vibration motor (6) and further connected with the vibrating member (9) through the coupling (8); a web plate group, including a left web plate (10) and a right web plate (11), the left web plate (10) being connected with the walking assembly and the right web plate (11) being connected with the vibration assembly, the left web plate (10) and the right web plate (11) being further connected through a plurality of connecting shafts (12), and outer circumferential sides of the left web plate (10) and the right web plate (11) being in abutment with inner walls of the wheel body (1); characterized in that further comprising: a rotating speed sensing assembly, including a plurality of magnetic field sensors (13) and magnetic bodies (14), the magnetic field sensors (13) being connected on the left and right wheel frames and being in communication connection with a controller of the compactor, and the magnetic bodies (14) being fixedly connected on the inner walls of the wheel body (1); an axis direction of the magnetic field sensors (13) coinciding with a radial direction of the wheel body (1), and a head end of the magnetic field sensors (13) being aligned with the inner walls of the wheel body (1); the magnetic bodies (14) being divided into a plurality of circles, and each of the magnetic bodies (14) being arranged in a circumferential array around a circumferential direction of the wheel body (1).

2. A steel wheel for an asphalt mixture compactor according to claim 1, characterized in that: one magnetic field sensor (13) is connected on each of the left wheel frame (2) and the right wheel frame (3), a head end of the magnetic field sensor (13) on the left wheel frame (2) facing in an opposite direction to a head end of the magnetic field sensor (13) on the right wheel frame (3), and one circle of magnetic bodies (14) being installed on the inner walls of the left and right ends of the wheel body (1).

3. The steel wheel of an asphalt mixture compactor according to claim 1, characterized in that: each of the magnetic bodies (14) having an N-pole and an S-pole, a length direction of the magnetic bodies (14) being arranged along an axial direction of the wheel body (1) so that the magnetic pole at one end of the magnetic bodies (14) faces the left end of the wheel body (1) and the magnetic pole at the other end faces the right end of the wheel body (1), and magnetic poles of adjacent two of the magnetic bodies (14) in the same circle facing in opposite directions.

4. The steel wheel of an asphalt mixture compactor according to claim 2, characterized in that: The side of the left wheel frame (2) and the right wheel frame (3) is also outwardly convexly provided with a mounting seat (15), and a mounting hole (16) is also provided through the inside and outside of the mounting seat (15), the magnetic field sensor (13) passes through the mounting hole (16) from inside to outside to be connected to the mounting seat (15), and the mounting fin (17) is also convexly provided on both sides of the magnetic field sensor (13), a first through hole (18) is provided on the mounting fin (17) for the bolt to pass through, and the mounting fin (17) can be attached to the inside of the mounting seat (15), so that the mounting fin (17) can be fixed to the inside of the mounting seat (15) by the bolt.

5. The steel wheel of an asphalt mixture compactor according to claim 1, characterized in that: A plurality of mounting boxes (19) are also connected to the inner wall of the wheel body (1), the mounting box (19) is single-sidedly opened, and the opening side of the mounting box (19) is connected to the inner wall of the wheel body (1) by welding, so that the accommodation cavity (20) is formed between the mounting box (19) and the inner wall of the wheel body (1), and the magnetic body (14) is located in the accommodation cavity (20).

6. A steel wheel for an asphalt mixture compactor according to claim 5, wherein: It also includes an amplitude sensing assembly, the amplitude sensing assembly includes a plurality of laser sensors (21) and a light board (22), the laser sensor (21) is connected to the left and right wheel frames, and the light board (22) is embedded on the top of the mounting box (19).

7. A steel wheel for an asphalt mixture compactor according to claim 6, characterized in that: The top of the left wheel frame (2) and the right wheel frame (3) is also convexly provided with a mounting plate (23), a second through hole (24) is provided on the laser sensor (21) for the bolt to pass through, and the laser sensor (21) can be attached to one side of the mounting plate (23), so that the laser sensor (21) can be fixed to one side of the mounting plate (23) by the bolt.

8. The steel wheel of an asphalt mixture compactor according to claim 1, characterized in that: It also includes a middle shaft plate (25), the middle shaft plate (25) is located between the left spoke plate (10) and the right spoke plate (11), the middle shaft plate (25) is connected to the circumferential side of the oscillating member (9), the connecting shaft (12) is arranged on both sides of the middle shaft plate (25), and the left spoke plate (10) and the right spoke plate (11) are connected to the middle shaft plate (25) through the connecting shaft (12).

9. The steel wheel of an asphalt mixture compactor according to claim 1, characterized in that: A plurality of shock absorbing blocks (26) are arranged between the walking assembly and the left spoke plate (10) and between the vibration assembly and the right wheel frame (3), the walking assembly is connected to the left spoke plate (10) through the shock absorbing block (26), and the vibration assembly is connected to the right wheel frame (3) through the shock absorbing block (26).

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