Laying device

Abstract

The invention relates to the field of road paving, in particular to a paving device which comprises a supporting frame used for supporting all components on the paving device. The lifting structure is located on the supporting frame, and the supporting frame can serve as a reference face of the lifting structure. The trowelling device is connected to the driving motor and the lifting structure, the trowelling device is driven by the lifting structure to get close to or get away from the working face, and when the trowelling device reaches the preset distance from the working face, the driving motor controls the trowelling device to rotate, and trowelling of the working face is completed. The lifting structure comprises a driving device and at least two lifting frames arranged in parallel, stable lifting of the whole lifting structure can be guaranteed, and the situation that the gravity center of the trowelling device shifts to affect normal work of the laying device due to the height difference of the lifting structure in the lifting process is avoided. The lifting frame is driven to stretch out and draw back together and drive the trowelling device to ascend or descend. Wherein the section of the lifting frame is a parallelogram, and the lifting frame ascends and descends in a mode similar to a shear fork frame.

Description

Technical Field

[0001] The invention relates to the field of road paving, and in particular to a paving device. Background Art

[0002] In the extensive practice of modern bridge construction and road maintenance, the smoothing operation after concrete laying is a crucial link. It not only directly affects the flatness and durability of the road surface, but also is related to the comfort and safety of vehicle driving.

[0003] In the prior art, when lowering the trowel device, the paving device often uses a hydraulic rod or a vertical scissor frame to lower the trowel device to contact the road surface. However, the design of the hydraulic rod or the vertical scissor frame is often more complicated. When the scissor frame is used to achieve lifting, an additional moving track needs to be set. At the same time, the design weight of the hydraulic rod and the scissor frame is relatively large, which makes the entire paving device unfavorable for paving operations on some terrains. Summary of the invention

[0004] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide a paving device that does not require additional tracks to be arranged at the bottom and can achieve the descent and recovery of the leveling device through a relatively simple structure.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a paving device, comprising: a support frame; a lifting structure, located on the support frame; a smoothing device, connected to a driving motor and the lifting structure, the driving motor controls the rotation of the smoothing device; the lifting structure comprises a driving device and at least two lifting frames arranged in parallel, the driving device is connected to the lifting frames, drives the lifting frames to extend and retract together and drives the smoothing device to rise or fall; wherein the cross-section of the lifting frame is a parallelogram.

[0006] Preferably, the lifting frame includes a first connecting seat and a second connecting seat arranged opposite to each other, and the driving device includes a rotating motor and a screw rod, the rotating motor is arranged on the first connecting seat and connected to the screw rod; the two second connecting seats are threadedly connected to the outer surface of the screw rod and can move along the direction of the screw rod approaching or away from the rotating motor.

[0007] Preferably, the lifting structure includes a second fixing rod, the second fixing rod is fixedly connected to the two second connecting seats, and the second fixing rod is plugged into the first connecting seat far away from the rotating motor.

[0008] Preferably, the lifting frame includes a first connecting seat and a second connecting seat arranged opposite to each other, and the driving device includes a rotating motor and a screw, the rotating motor is arranged on the first connecting seat and connected to the screw; any second connecting seat is threadedly connected to the outer surface of the screw, and can move along the direction of the screw close to or away from the rotating motor; the lifting structure includes a second fixing rod, the second fixing rod is fixedly connected to the two second connecting seats, and the second fixing rod is inserted into the first connecting seat away from the rotating motor.

[0009] Preferably, the lifting structure includes a first fixing rod, the first fixing rod is fixedly connected to the two first connecting seats, and the first fixing rod is plugged into the second connecting seat close to one end of the rotating motor.

[0010] Preferably, it further comprises a support platform fixed on the lifting structure, and the lifting frame is arranged between the support platform and the support frame.

[0011] Preferably, the lifting structure comprises a connecting plate, the connecting plate is arranged on the supporting frame and fixedly connected to the lifting frame, and the driving motor is installed between the supporting platform and the connecting plate.

[0012] Preferably, there are two lifting structures, which are respectively arranged on both sides of the laying device, and the driving motor is arranged between the two lifting structures.

[0013] Preferably, it also includes moving wheels, which are arranged below the supporting frame.

[0014] Preferably, it further comprises a bracket connected to the support frame, and an armrest is provided at one end of the bracket away from the support frame.

[0015] According to the above description and practice, the paving device of the present invention includes a support frame, a lifting structure and a smoothing device. Among them, the support frame is used to support all components on the paving device, and the lifting structure is located on the support frame, and the support frame can be used as a reference surface of the lifting structure. The smoothing device is connected to the driving motor and the lifting structure. The smoothing device is driven by the lifting structure to approach or move away from the working surface, and when it reaches a preset distance from the working surface, the driving motor controls the smoothing device to rotate to complete the smoothing of the working surface. The lifting structure includes a driving device and at least two lifting frames arranged in parallel. The two lifting frames can ensure the stable lifting of the lifting structure as a whole, avoid the height difference of the lifting structure itself during lifting, and then cause the center of gravity of the smoothing device to shift and affect the normal operation of the paving device. The driving device is connected to the lifting frame, and the driving lifting frame is extended and retracted together and drives the smoothing device to rise or fall. Among them, the cross-section of the lifting frame is a parallelogram, and it is lifted and lowered in a manner similar to a scissor frame, and there is no need to set a movable slide rail at the bottom to provide lifting conditions for the scissor frame as in the traditional scissor frame, which simplifies the structure of the entire paving device to a certain extent, thereby reducing the cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a laying device involved in one embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram from another perspective of a laying device involved in one embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the lifting structure of the laying device involved in one embodiment of the present invention.

[0019] Figure 4 It is a side view of the lifting structure of the laying device involved in one embodiment of the present invention. DETAILED DESCRIPTION

[0020] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated descriptions will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as marks, and are not restrictions on the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which 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 cannot be understood as a limitation on the present invention.

[0022] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The present invention provides a paving device for paving a road construction working surface such as a bridge deck or ground. Figures 1 to 4The laying device includes a support frame 1, a lifting structure 2 and a smoothing device 3. Among them, the support frame 1 is used to support all components on the laying device, the lifting structure 2 is located on the support frame 1, the support frame 1 can be used as a reference surface of the lifting structure 2, and the lifting structure 2 is lifted and lowered relative to the support frame 1. The smoothing device 3 is connected to the driving motor 4 and the lifting structure 2. The smoothing device 3 is driven by the lifting structure 2 to approach the working surface, and when it reaches a preset distance from the working surface, the driving motor 4 controls the smoothing device 3 to rotate to complete the smoothing of the working surface. The smoothing device 3 is driven by the lifting structure 2 to stay away from the working surface, which effectively avoids damage caused by collision during transportation, extends the service life of the equipment, and reduces maintenance costs; during the smoothing operation, the laying component can accurately descend to a predetermined height to ensure close contact with the concrete surface, thereby improving the accuracy and quality of the smoothing operation. The lifting structure 2 includes a driving device 21 and at least two lifting frames 22 arranged in parallel. The two lifting frames 22 can ensure the stable lifting of the lifting structure 2 as a whole, and avoid the height difference of the lifting structure 2 itself during lifting, which will cause the center of gravity of the smoothing device 3 to shift and affect the normal operation of the paving device. The driving device is connected to the lifting frame 22, driving the lifting frame 22 to extend and retract together and drive the smoothing device 3 to rise or fall. Among them, the cross-section of the lifting frame 22 is a parallelogram, and it is lifted and lowered in a manner similar to a scissor frame, and there is no need to set a movable slide rail at the bottom like a traditional scissor frame to provide lifting conditions for the scissor frame, which simplifies the structure of the entire paving device to a certain extent, thereby reducing the cost investment.

[0024] Furthermore, at least two smoothing devices 3 may be provided. When the smoothing devices 3 are arranged in parallel horizontally, the area where smoothing operations are performed simultaneously can be increased; when the smoothing devices 3 are arranged in parallel vertically, the working surface previously processed by the smoothing device 3 can be smoothed for the second time, thereby improving the efficiency and quality of smoothing the working surface.

[0025] In some embodiments, the lifting frame 22 includes a first connecting seat 23 and a second connecting seat 24 that are arranged opposite to each other. The first connecting seat 23 and the second connecting seat 24 are respectively arranged at two ends of the lifting frame 22. The driving device 21 includes a rotating motor 25 and a screw rod 26. The rotating motor 26 is arranged on the first connecting seat 23 and connected to the screw rod 26, and can drive the screw rod 26 to rotate. The two second connecting seats 24 are threadedly connected to the outer surface of the screw rod 26. The rotation of the screw rod 26 can synchronously drive the two second connecting seats 24 to rotate together. The second connecting seat 24 can extend the lifting structure 2 along the direction in which the screw rod 26 approaches the rotating motor 25 and drive the smoothing device 3 to rise, and can also move along the direction in which the screw rod 26 moves away from the rotating motor 25 to shorten the lifting structure 2 and drive the smoothing device 3 to descend.

[0026] Furthermore, the lifting structure 2 includes a second fixing rod 27, which is fixedly connected to the two second connection seats 24, so that the two second connection seats 24 can be lifted and lowered synchronously, ensuring that the heights of the two lifting frames 22 remain consistent when they are lifted and lowered together, and maintaining the stability of the leveling device 3 on the work surface. The second fixing rod 27 is plugged into the first connection seat 23 away from the rotating motor 26, so that the two second connection seats 24 are kept at the same height, and the first connection seat 23 does not rotate with the rotation of the second fixing rod 27 and the second connection seat 24, so that the lifting frame 22 can be lifted and lowered freely.

[0027] In some other embodiments, any second connection seat 24 is threadedly connected to the outer surface of the screw rod 26, and the lifting structure 2 can be extended along the direction of the screw rod 26 approaching the rotating motor 25 and driving the smoothing device 3 to rise, and the lifting structure 2 can also be shortened and driven to descend by the smoothing device 3 by moving along the direction of the screw rod 26 away from the rotating motor 25. Since the screw rod 26 is only connected to one second connection seat 24, in order to ensure that the two lifting frames 22 can be lifted together, a connecting piece must be provided between the two second connection seats 24, that is, a second fixing rod 27 fixedly connects the two second connection seats 24, so that the two second connection seats 24 can be lifted synchronously, and the heights of the two lifting frames 22 are always consistent when they are lifted together, so as to maintain the stability of the smoothing device 3 on the working surface.

[0028] Furthermore, in order to ensure that the distance between the two lifting frames 22 of the lifting structure 2 can always remain consistent, in some embodiments, the lifting structure 2 includes a first fixing rod 28, which is fixedly connected to the two first connecting seats 23. When the lifting frame 22 is lifted or lowered, the two first connecting seats 23 can keep moving together under the connection of the first fixing rod 28. The first fixing rod 23 is inserted into the second connecting seat 24 near one end of the rotating motor 25 to ensure that the first connecting seat 23 and the second connecting seat 24 can be kept at the same height when the lifting structure 2 is lifted or lowered.

[0029] In some embodiments, the laying device further comprises a support platform 5, which is fixed on the lifting structure 2, and the lifting frame 22 is arranged between the support platform 5 and the support frame 1. The support platform 5 rises and falls together with the lifting frame 22 and the trowel device 3. The support platform 5 drives the trowel disc device 3 to rise through the driving motor 4, so that the trowel device 3 is away from the ground. At this time, the laying device can be moved and other tools can be placed on the support platform 5 to realize the transportation of other tools.

[0030] Furthermore, the lifting structure 2 includes a connecting plate 20, which is arranged on the support frame 1 and fixedly connected to the lifting frame 22. The driving motor 4 is installed between the support platform 5 and the connecting plate 20, and the connecting plate 20 can be removed from the support frame 1. When the driving motor 4 drives the lifting frame 22 to extend, the support platform 5 is away from the connecting plate 20, and when the driving motor 4 drives the lifting frame 22 to retract, the support platform 5 is close to the connecting plate 20. When the lifting structure 2 is directly fixed to the support frame 1 and a fault occurs and needs to be repaired, the connecting plate 20 can be directly removed from the support frame 1, and the entire lifting structure 2 can be repaired, which reduces the time and operation cost of repair.

[0031] It can be understood that since the mass of the smoothing device 3 is often large, in order to prevent the overall center of gravity of the paving device from shifting or the paving device from collapsing when the smoothing device 3 is raised or lowered, in some embodiments, the lifting structure 2 includes two lifting structures 2, which are respectively arranged on both sides of the paving device, and the driving motor 4 is arranged between the two lifting structures 2 to drive the lifting structures 2 on both sides and ensure that the lifting structures 2 on both sides can be raised and lowered synchronously to realize the lifting and lowering operation of the smoothing device 3.

[0032] Since the working area of ​​the smoothing device 3 is relatively large when paving working surfaces such as road surfaces and bridge decks, in order to facilitate the movement of the entire paving device, in some embodiments, the paving device also includes moving wheels 6, which are arranged under the support frame 1 to facilitate the movement of the entire paving device on the working surface and improve the smoothing efficiency of the paving device.

[0033] Furthermore, since the laying device is provided with moving wheels 6, when the smoothing device 3 descends to the working surface, the smoothing device 3 extends toward the working surface under the drive of the lifting structure 2, and lifts up the moving wheels 6, so that the moving wheels 6 no longer contact the working surface, thereby preventing the moving wheels 6 from damaging the smoothed working surface when moving. After the smoothing work is completed, the smoothing device 3 rises under the drive of the lifting structure 2. On the one hand, it can avoid damage to the smoothing device 3 caused by collision during transportation, extend its service life, and reduce maintenance costs; on the other hand, at this time, the moving wheels contact the ground, which is convenient for moving the laying device to other working surfaces. Among them, the moving wheels 6 can be universal wheels, which ensure that the laying device can easily change the direction of travel when moving, and realize flexible steering and movement.

[0034] It can be understood that in order to move the laying device more easily, in some embodiments, the laying device further includes a bracket 7 connected to the support frame 1. The bracket 7 and the support frame 1 can together form a storage space for storing other tools. The bracket 7 is provided with a handrail 71 at one end away from the support frame 1. The handrail 71 is provided toward the moving wheel 6. When moving the laying device, the handrail 71 can be used to push the entire laying device to achieve the movement of the laying device between different working surfaces.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A laying device, characterized in that: include: Support frame; A lifting structure, located on the support frame; A smoothing device connected to the driving motor and the lifting structure, wherein the driving motor controls the smoothing device to rotate; The lifting structure includes a driving device and at least two lifting frames arranged in parallel, wherein the driving device is connected to the lifting frames to drive the lifting frames to extend and retract together and drive the smoothing device to rise or fall; wherein the cross-section of the lifting frames is a parallelogram.

2. The laying device according to claim 1, characterized in that: The lifting frame comprises a first connecting seat and a second connecting seat which are arranged opposite to each other, and the driving device comprises a rotating motor and a screw rod, wherein the rotating motor is arranged on the first connecting seat and connected to the screw rod; The two second connection seats are threadedly connected to the outer surface of the screw rod and can move along the direction of the screw rod approaching or away from the rotating motor.

3. The laying device according to claim 2, characterized in that: The lifting structure includes a second fixing rod, the second fixing rod is fixedly connected to the two second connecting seats, and the second fixing rod is plugged into the first connecting seat far away from the rotating motor.

4. The laying device according to claim 1, characterized in that: The lifting frame comprises a first connecting seat and a second connecting seat which are arranged opposite to each other, and the driving device comprises a rotating motor and a screw rod, wherein the rotating motor is arranged on the first connecting seat and connected to the screw rod; Any of the second connecting seats is threadedly connected to the outer surface of the screw rod and can move along the direction in which the screw rod approaches or moves away from the rotating motor; The lifting structure includes a second fixing rod, the second fixing rod is fixedly connected to the two second connecting seats, and the second fixing rod is plugged into the first connecting seat far away from the rotating motor.

5. The laying device according to claim 3 or 4, characterized in that: The lifting structure includes a first fixing rod, the first fixing rod is fixedly connected to the two first connecting seats, and the first fixing rod is plugged into the second connecting seat close to one end of the rotating motor.

6. The laying device according to claim 1, characterized in that: Also includes: The support platform is fixed on the lifting structure, and the lifting frame is arranged between the support platform and the support frame.

7. The laying device according to claim 6, characterized in that: The lifting structure comprises a connecting plate, the connecting plate is arranged on the supporting frame and fixedly connected to the lifting frame, and the driving motor is installed between the supporting platform and the connecting plate.

8. The laying device according to claim 1, characterized in that: The lifting structures include two, the two lifting structures are respectively arranged on both sides of the laying device, and the driving motor is arranged between the two lifting structures.

9. The laying device according to claim 1, characterized in that: Also includes: The moving wheel is arranged below the supporting frame.

10. The laying device according to claim 1, characterized in that: Also includes: The bracket is connected to the support frame, and an end of the bracket away from the support frame is provided with an armrest.

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