Rear tail frame of slurry seal paver

Abstract

The utility model belongs to the technical field of slurry seal pavers, and discloses a rear tail frame of a slurry seal paver, which comprises a swing frame arranged on a vertical plate at the tail of the slurry seal paver and capable of swinging back and forth, and a lifting mechanism used for lifting or putting down the swing frame, a cross beam is arranged at the end part of the swing frame far away from the vertical plate at the tail of the slurry seal paver, and a plurality of hanging rings capable of swinging back and forth are arranged on the cross beam. The hanging rings are arranged at intervals in the length direction of the cross beam. According to the rear tail frame of the slurry seal paver, the hanging rings capable of swinging front and back are arranged on the cross beam, and each hanging ring and the asphalt paver form a connecting point, so that the reliability of connection between the rear tail frame and the asphalt paver is ensured through the connecting points.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry seal trucks, in particular to a rear tail frame of a slurry seal truck. Background Art

[0002] A slurry seal truck is a commonly used road construction machine for constructing slurry seals on road surfaces. A slurry seal truck is usually provided with a rear tail frame for towing an asphalt paver on the ground to move for construction.

[0003] After investigation, the publication (announcement) number: CN206034251U discloses an integrated construction vehicle for slurry seal and asphalt spraying. After the asphalt material is discharged from the hopper to the ground, it is necessary to scrape the asphalt on the road surface so that each road surface area is evenly distributed with asphalt material. The rear tail frame is connected to the asphalt paver, and the vehicle can tow the asphalt paver to move when driving. However, during the operation of the asphalt paver, certain vibrations will be generated. The connection between the asphalt paver and the rear of the slurry seal truck is relatively single. During the use of the asphalt paver, the asphalt paver in the moving process may be separated from the connection with the rear tail frame, which not only affects the construction efficiency but also affects the construction quality.

[0004] It can be seen that the existing technology still needs to be improved. Summary of the Utility Model

[0005] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a rear tail frame of a slurry seal truck to overcome the above-mentioned technical problems existing in the related prior art.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] The rear tail frame of a slurry seal truck includes a swing frame that is swingably arranged on a vertical plate at the rear of the vehicle, and a lifting mechanism for lifting or lowering the swing frame. A cross beam is provided at the end of the swing frame away from the vertical plate at the rear of the vehicle. A plurality of swingable hanging rings are provided on the cross beam, and the hanging rings are arranged at intervals along the length direction of the cross beam.

[0008] As a further improvement of the above technical solution, six hanging rings are provided, one of which is located at the left end of the cross beam and one of which is located at the right end of the cross beam.

[0009] As a further improvement of the above technical solution, the cross beam and the swing frame are restricted from swinging in a non-working state by a limiting mechanism. The limiting mechanism includes a vertical rod fixed on the vertical plate at the rear of the vehicle, an L-shaped rod arranged on the vertical rod, and a chain. One end of the chain is sleeved on the L-shaped rod, and the other end is provided with a buckle for detachably connecting with the hanging ring.

[0010] As a further improvement of the above technical solution, the buckle includes a U-shaped ring, a limiting arm pivotally connected to one end of the U-shaped ring, and a locking screw. A threaded hole is provided at the free end of the limiting arm, and a through hole coaxial with the threaded hole is provided at the end of the U-shaped ring away from the limiting arm. The locking screw passes through the through hole and is connected to the threaded hole.

[0011] As a further improvement of the above technical solution, two sets of the limiting mechanisms are provided. One limiting mechanism is used to connect with the hanging ring at the leftmost end of the cross beam, and the other limiting mechanism is used to connect with the hanging ring at the rightmost end of the cross beam.

[0012] As a further improvement of the above technical solution, the swing frame includes two first square tubes, a cross tube connecting the two first square tubes, and second square tubes respectively inserted into the corresponding first square tubes. The second square tubes are fixedly connected to the cross beam, and the first square tubes and the second square tubes are fixedly connected by a pin shaft and an opening pin.

[0013] As a further improvement of the above technical solution, adjustment through holes are provided on the first square tubes at intervals along the length direction of the first square tubes, and connection through holes are provided on the second square tubes.

[0014] As a further improvement of the above technical solution, two lifting mechanisms are provided, and each lifting mechanism is correspondingly drivingly connected to one of the first square tubes.

[0015] As a further improvement of the above technical solution, the lifting mechanism includes a hydraulic rod. The cylinder part of the hydraulic rod is hinged to the vertical plate at the rear of the vehicle, and the end of the piston rod of the hydraulic rod is hinged to the swing frame. The beneficial effects of the present utility model: The rear tail frame of the slurry sealant vehicle is provided with a plurality of hanging rings on the cross beam that can swing back and forth. Since each hanging ring will form a connection point with the asphalt paver, on the one hand, the plurality of connection points ensure the reliability of the connection between the rear tail frame and the asphalt paver, preventing the disconnection caused by excessive connection stress at a single point. On the other hand, by utilizing the characteristic that the ring can swing back and forth, the asphalt paver can automatically adjust its position according to the road surface conditions, and can maintain a stable working state even on an uneven road surface, preventing the loosening or falling off of the connection caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the rear tail frame of the slurry sealant vehicle provided by the present utility model.

[0017] Figure 2 It is a structural schematic diagram of the buckle.

[0018] Description of main component symbols: 1 - Rear vertical plate, 2 - Lifting mechanism, 3 - Swing frame, 31 - First square tube, 32 - Cross tube, 33 - Second square tube, 34 - Pin shaft, 35 - Position adjustment through hole, 4 - Cross beam, 5 - Hanging ring, 6 - Limiting mechanism, 61 - Vertical rod, 62 - L-shaped rod, 63 - Chain, 64 - Buckle, 641 - U-shaped ring, 642 - Limiting arm, 643 - Threaded hole, 644 - Perforation, 65 - Locking screw, 7 - Hopper. Detailed implementation manners

[0019] The present utility model provides a rear tail frame of a slurry seal truck. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.

[0020] Please refer to Figure 1 , the present utility model provides a rear tail frame of a slurry seal truck, including a rear vertical plate 1 installed at the rear of the truck, a swing frame 3 swingably arranged on the rear vertical plate 1, and a lifting mechanism 2 for lifting or lowering the swing frame 3. There are two lifting mechanisms 2, and the two lifting mechanisms 2 are evenly distributed on the swing frame 3. The swing frame 3 is in an upright state when not in use. A cross beam 4 is arranged at the end of the swing frame 3 away from the rear vertical plate 1, and a plurality of swingable hanging rings 5 are arranged on the cross beam 4.

[0021] In this embodiment, six hanging rings 5 are provided, and the six hanging rings 54 are spaced along the length direction on the cross beam 4. One hanging ring 5 is located at the left end of the cross beam 4, and one hanging ring 5 is located at the right end of the cross beam 4. During operation, the swing frame 3 is driven by the lifting mechanism 2 to flip and descend. After adjusting the height of the hanging ring 5 to a suitable height, the hanging ring 5 on the cross beam 4 is convenient for connecting with the traction member on the asphalt paver. During the movement of the slurry seal truck, the asphalt paver is driven to move, so that the asphalt is evenly scraped and laid on the ground. Since each hanging ring 5 forms a connection point with the asphalt paver, on the one hand, multiple connection points ensure the reliability of the connection between the rear tail frame and the asphalt paver, preventing the connection stress caused by single-point connection from being too large and resulting in disconnection. On the other hand, using the swingable characteristic of the ring, the asphalt paver can automatically adjust its position according to the road surface condition, and can maintain a stable working state even on an uneven road surface, preventing connection loosening or falling off caused by vibration.

[0022] It can be understood that the rear tail frame of the slurry sealing vehicle is in an upright state when not in operation. If the slurry sealing vehicle is driving on the road, the lifting mechanism 2 fails due to misoperation or malfunction, causing the swing frame 3 and the cross beam 4 to swing down spontaneously, which will easily cause an accident to the rear vehicle. Therefore, the cross beam 4 and the swing frame 3 will be restricted from swinging by the limiting mechanism 6 when not in operation. The limiting mechanism 6 includes a vertical rod 61 fixed on the rear vertical plate 1, an L-shaped rod 62 arranged on the vertical rod 61, and a chain 63. One end of the chain 63 is hung on the L-shaped rod 62, and the other end is provided with a buckle 64. The buckle 64 is detachably connected to the hanging ring 5, that is, when the hanging ring 5 is working, the connection between the buckle 64 and the hanging ring 5 is removed.

[0023] For further information, see Figure 2 As shown, the buckle 64 includes a U-shaped ring 641, a limiting arm 642 pivotally connected to one end of the U-shaped ring 641, and a locking screw 65. The free end of the limiting arm 642 is provided with a threaded hole 643, and the end of the U-shaped ring 641 away from the limiting arm 642 is provided with a through hole 644 that is connected to the threaded hole 643. The locking screw 65 passes through the through hole 644 and is connected to the threaded hole 643, which can not only firmly fix the hanging ring 5, but also adjust the locking degree according to actual needs, thereby ensuring the stability of the connection part. The pivot connection design of the U-shaped ring 641 and the limiting arm 642 allows the buckle 64 to rotate flexibly, which is convenient for quickly connecting or separating the buckle 64 from the hanging ring 5, simplifies the operation steps, and improves work efficiency.

[0024] In this embodiment, two limiting mechanisms 6 are provided, one limiting mechanism 6 is used to connect with the hanging ring 5 at the leftmost end of the cross beam 4, and the other limiting mechanism 6 is used to connect with the hanging ring 5 at the rightmost end of the cross beam 4. The two limiting mechanisms 6 can more effectively limit the lateral swing of the swing frame 3 and the cross beam 4, reduce the shaking caused by the lateral force in driving or non-working state, and improve the overall safety of the equipment.

[0025] Specifically, the swing frame 3 includes two first square tubes 31, a transverse tube 32 connecting the two first square tubes 31, and second square tubes 33 respectively inserted into the corresponding first square tubes 31, the second square tubes 33 are fixedly connected to the crossbeam 4, and the first square tubes 31 and the second square tubes 33 are fixedly connected by a pin 34 and a cotter pin. The modular design of the swing frame 3 allows the length or height of the swing frame 3 to be changed according to specific construction requirements by adjusting the depth of the second square tube 33 inserted into the first square tube 31, thereby improving the adaptability and versatility of the equipment. The connection method of the pin 34 and the cotter pin makes the assembly and disassembly of the swing frame 3 extremely simple and quick, and the replacement or maintenance of components can be completed without complex tools or professional skills, which significantly improves the flexibility and efficiency of on-site operations.

[0026] Preferably, the first square tube 31 is provided with adjustment through holes 35 arranged at intervals along the length direction of the first square tube 31, and the second square tube 33 is provided with connection through holes. The pin shaft 34 can be inserted into a suitable adjustment through hole 35 and pass through the connection through hole, so as to change the working positions of the second square tube 33 and the cross beam 4, and more flexibly connect the hanging ring 5 with the asphalt paver. The design of the adjustment through holes 35 enables the position of the second square tube 33 in the first square tube 31 to be adjustable, which means that the height or angle of the cross beam 4 and the hanging ring 5 can be adjusted as required. By accurately adjusting the connection position between the hanging ring 5 and the asphalt paver, the uniform distribution of the asphalt material can be ensured, manual intervention can be reduced, the construction quality can be improved, and at the same time, the construction process can be accelerated and the work efficiency can be increased.

[0027] In this embodiment, two lifting mechanisms 2 are provided, and each lifting mechanism 2 is correspondingly drivingly connected to one of the first square tubes 31. By providing two lifting mechanisms 2, the weight of the swing frame 3 and its load can be more evenly shared, effectively improving the bearing capacity and structural stability. When lifting or lowering the swing frame 3, the double lifting mechanism 2 can provide a more stable movement, reducing the deformation or damage of the equipment that may be caused by excessive single-point stress, and extending the service life of the equipment.

[0028] Specifically, the lifting mechanism 2 includes a hydraulic rod. The cylinder body part of the hydraulic rod is hinged to the rear vertical plate 1 of the vehicle, and the end of the piston rod of the hydraulic rod is hinged to the swing frame 3. By using a hydraulic rod as the lifting mechanism 2 and adopting a hinged connection method, not only the lifting force, stability and operation accuracy of the rear tail frame of the slurry sealant truck are significantly improved.

[0029] A feeding hopper is provided on the slurry sealant truck, and the stirred asphalt material is discharged to the ground through the feeding hopper.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims

1. The rear tail frame of the slurry sealing vehicle is characterized by: The utility model comprises a swing frame which is arranged on a rear vertical plate and can swing forward and backward, and a lifting mechanism for lifting or lowering the swing frame. The end of the swing frame away from the rear vertical plate is provided with a crossbeam, and the crossbeam is provided with a plurality of hanging rings which can swing forward and backward, and the hanging rings are arranged at intervals along the length direction of the crossbeam.

2. The rear tail frame of the slurry sealing vehicle according to claim 1, characterized in that: There are six hanging rings, one of which is located at the left end of the crossbeam, and one of which is located at the right end of the crossbeam.

3. The rear tail frame of the slurry sealing vehicle according to claim 2, characterized in that: The crossbeam and the swing frame are restricted from swinging by a limiting mechanism in a non-working state. The limiting mechanism includes a vertical rod fixed on the vertical plate at the rear of the vehicle, an L-shaped rod arranged on the vertical rod, and a chain. One end of the chain is hung on the L-shaped rod, and the other end is provided with a buckle, which is used for detachable connection with the hanging ring.

4. The rear tail frame of the slurry sealing vehicle according to claim 3, characterized in that: The buckle ring includes a U-shaped ring, a limiting arm pivotally connected to one end of the U-shaped ring, and a locking screw. The free end of the limiting arm is provided with a threaded hole, and the end of the U-shaped ring away from the limiting arm is provided with a through hole that is axially connected to the threaded hole. The locking screw passes through the through hole and is connected to the threaded hole.

5. The rear tail frame of the slurry sealing vehicle according to claim 3, characterized in that: There are two limiting mechanisms, one of which is used to connect with the hanging ring at the leftmost end of the beam, and the other limiting mechanism is used to connect with the hanging ring at the rightmost end of the beam.

6. The rear tail frame of a slurry sealing vehicle according to claim 1, characterized in that: The swing frame includes two first square tubes, a horizontal tube connecting the two first square tubes, and second square tubes respectively inserted into the corresponding first square tubes, the second square tubes are fixedly connected to the cross beam, and the first square tubes and the second square tubes are fixedly connected by a pin shaft and a cotter pin.

7. The rear tail frame of a slurry sealing vehicle according to claim 6, characterized in that: The first square tube is provided with adjustment through holes spaced apart along the length direction of the first square tube, and the second square tube is provided with connection through holes.

8. The rear tail frame of a slurry sealing vehicle according to claim 6, characterized in that: There are two lifting mechanisms, and each lifting mechanism is correspondingly drivingly connected to one of the first square tubes.

9. The rear tail frame of a slurry sealing vehicle according to claim 8, characterized in that: The lifting mechanism comprises a hydraulic rod, a cylinder portion of the hydraulic rod is hinged to the rear vertical plate of the vehicle, and a piston rod end portion of the hydraulic rod is hinged to the swing frame.

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