Cement tank cover plate paving vehicle

Abstract

The invention discloses a cement tank cover plate paving vehicle, relates to the technical field of cement tank cover plate paving equipment, and is mainly used for solving the problem that the paving of a cement tank cover plate is mainly completed by manpower at present. The main structure of the device is that the device comprises a loading platform frame and a blanking inclined platform frame which are sequentially arranged along the advancing direction of the paving vehicle, and a lifting platform frame which can transfer a cement tank cover plate on the loading platform frame to the blanking inclined platform frame and can vertically lift is arranged between the loading platform frame and the blanking inclined platform frame. The invention provides a cement tank cover plate paving vehicle which can replace manpower and realize automatic paving of cement tank cover plates, so that the labor intensity of workers is reduced, the paving efficiency is improved, and meanwhile, potential safety hazards are also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cement trough cover paving, and in particular to a cement trough cover paving vehicle. Background Art

[0002] In various buildings, cement troughs are a common structure, which are mainly used as drainage facilities or pipeline laying facilities of buildings. At present, after the main construction of the cement trough is completed, it is often necessary to lay a cover plate above the cement trough to ensure the flatness of the ground and protect the pipelines inside the cement trough.

[0003] In the prior art, the paving of cement trough covers is often completed by construction workers moving the cement trough covers onto the cement troughs by their own strength. However, since the cement trough covers need to meet certain structural strengths and have requirements to prevent them from deflecting, most cement trough covers are made of cement steel bars, and the weight is usually 40-50 kg. This results in the fact that the paving of cement trough covers by manpower is not only labor-intensive, but also has low paving efficiency. In addition, since the cement trough covers are relatively heavy, there is also the risk of construction workers being injured by the cement trough covers.

[0004] Therefore, there is an urgent need for a device that can replace manual labor and realize automatic paving of cement trough covers. Summary of the invention

[0005] The purpose of the present invention is to provide a cement trough cover paving vehicle, which can replace manual labor and realize automatic paving of cement trough cover, thereby reducing the labor intensity of workers, improving paving efficiency, and avoiding safety hazards.

[0006] The technical solution of the present invention to solve the above technical problems is: a cement trough cover paving vehicle, comprising a loading platform frame and a discharge inclined platform frame arranged in sequence along the forward direction of the paving vehicle, and a lifting platform frame which can transfer the cement trough cover on the loading platform frame to the discharge inclined platform frame and can be lifted vertically is provided between the loading platform frame and the discharge inclined platform frame.

[0007] As a further improvement of the present invention, the lifting platform frame is horizontally provided with a plurality of guide rollers which are arranged in sequence along the forward direction of the paving vehicle and are rotatably connected to the lifting platform frame at both ends, and the extension direction of the guide rollers is perpendicular to the forward direction of the paving vehicle; the lifting platform frames at both ends of the guide rollers are horizontally provided with feeding belts which extend to both sides of the loading platform frame along the forward direction of the paving vehicle, and the belt surfaces of the two feeding belts are arranged oppositely, and feeding blocks are arranged on the belt surfaces of the feeding belts at intervals, and a feeding belt shaft for driving its rotational motion is also provided on the inner side of the feeding belt;

[0008] The unloading inclined platform is provided with an unloading belt which is inclined from top to bottom along the forward direction of the paving vehicle. Positioning blocks are arranged at intervals on the belt surface of the unloading belt, and a plurality of unloading rollers arranged in sequence along the extension direction of the unloading belt are horizontally arranged on the inner side of the unloading belt. A unloading belt shaft for driving its rotational motion is also provided on the inner side of the upper end of the unloading belt. Guide wheels which rotate along the forward direction of the paving vehicle are provided on the unloading inclined platforms on both sides of the lower end of the unloading belt.

[0009] As a further improvement of the present invention, side plate brackets are vertically provided on the outer sides of the lifting platform frames on the opposite sides of the two feeding belts, and driving screws that vertically penetrate the lifting platform frames and are threadedly matched with the lifting platform frames are rotatably installed on the two side plate brackets. Multiple guide rods that vertically penetrate the lifting platform frames and slide up and down with the lifting platform frames are also installed on the two side plate brackets;

[0010] The lower end of one of the driving screws is provided with a screw driving mechanism for driving its axial rotation, and the lower end of the other driving screw is connected to a platform reset handwheel. The rod bodies of the two driving screws are fixedly sleeved with synchronous pulleys, and the two are connected by a synchronous belt drive.

[0011] As a further improvement of the present invention, the lower end of the feeding belt shaft extends to the inside of the lifting platform frame, and is connected to the driving screw through a transmission gear set arranged inside the lowering platform frame;

[0012] A first worm gear meshing with the driving screw is provided between the transmission gear group and the driving screw, and a worm gear meshing with the transmission gear group is coaxially fixed on the upper end of the first worm gear. An intermediate tooth column meshing with the transmission gear group is provided between the transmission gear group and the feeding belt shaft, and the intermediate tooth column also meshes with a feeding belt tooth column fixedly sleeved on the feeding belt shaft.

[0013] As a further improvement of the present invention, both ends of the unloading belt shaft extend into the interior of the lifting platform frame, and are both connected to the driving screw through a transmission gear set arranged inside the lowering platform frame;

[0014] A first worm gear meshing with the driving screw is provided between the transmission gear group and the driving screw, and a worm gear meshing with the transmission gear group is coaxially fixed to the upper end of the first worm gear. A second worm gear is provided between the transmission gear group and the unloading belt shaft, and the second worm gear meshes with the unloading belt worm wheel fixedly sleeved on the unloading belt shaft. A worm gear meshing with the transmission gear group is coaxially fixed to the upper end of the second worm gear.

[0015] As a further improvement of the present invention, the screw drive mechanism includes a driving wheel mounting frame, the upper part of the driving wheel mounting frame is connected to the mounting rod vertically installed on the side plate bracket, and the lower part of the driving wheel mounting frame is vertically installed with a screw driving wheel that can rotate along the forward direction of the paving vehicle, the axis of the screw driving wheel is fixedly connected to one end of a horizontally arranged driving worm, and the driving worm is meshed with the screw worm wheel on the fixed sleeve driving screw.

[0016] As a further improvement of the present invention, the upper part of the driving wheel mounting frame is hinged to the lower end of the mounting rod through a hinged connecting rod; a shift block mounting block fixedly mounted on the lower edge of the side plate bracket is provided above the end of the driving worm away from the screw driving wheel, and the shift block mounting block is provided with a shift block mounting groove extending horizontally along the forward direction of the paving vehicle, a disengagement shift block capable of reciprocating along the extension direction thereof is provided in the shift block mounting groove, and the lower end of the disengagement shift block is rotatably connected to the end of the driving worm;

[0017] A return spring is horizontally arranged between the side of the disengagement block away from the screw and worm gear and the inner wall of one end of the block mounting groove, and its two ends are respectively tightly contacted with the two. A top block which can move up and down and whose cross-sectional area gradually decreases from top to bottom is arranged between the side of the disengagement block close to the screw and worm gear and the inner wall of the other end of the block mounting groove. The upper end of the top block is connected to the lifting platform frame by a steel wire rope.

[0018] As a further improvement of the present invention, the mounting rod is installed on the side plate bracket by means of two mounting sleeves which are sleeved on the outside of the mounting rod and vertically slidably matched with the mounting rod. A buffer spring is also sleeved on the mounting rod between the two mounting sleeves. The upper end of the buffer spring is in tight contact with the mounting sleeve located above, and the lower end is in tight contact with a spring top block fixed on the outside of the mounting rod.

[0019] As a further improvement of the present invention, the loading platform frame is horizontally provided with a plurality of stripping rollers which are arranged in sequence along the forward direction of the paving vehicle and whose two ends are rotatably connected to the loading platform frame respectively. The lower part of the loading platform frame is connected to two groups of support legs which are respectively arranged on both sides of the moving path of the paving vehicle and the lower ends of the support legs are connected to moving wheels.

[0020] As a further improvement of the present invention, at least one group of support legs is a telescopic support leg.

[0021] Beneficial Effects

[0022] Compared with the prior art, the cement trough cover paving vehicle of the present invention has the following advantages:

[0023] 1. The paving vehicle moves forward along the extension direction of the cement trough, and can transfer multiple cement trough cover plates stacked on the loading platform frame to the unloading inclined platform frame in sequence through the vertically lifting platform frame during the moving process, so that the cement trough cover plates can be laid on the cement trough in sequence during the movement of the paving vehicle along the cement trough; thus, the device can replace manual labor and realize automatic paving of cement trough cover plates, thereby reducing the labor intensity of workers, improving paving efficiency, and also avoiding the safety hazard of construction workers being hit by cement trough cover plates.

[0024] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A perspective view of the present invention;

[0027] Figure 2 It is a connection structure diagram of the lifting platform frame and the unloading inclined platform frame of the present invention;

[0028] Figure 3 It is a structural diagram of the lifting platform frame of the present invention;

[0029] Figure 4 It is the installation structure diagram of the transmission gear set of the present invention;

[0030] Figure 5 It is one of the transmission connection diagrams of the transmission gear set of the present invention;

[0031] Figure 6 This is the second transmission connection diagram of the transmission gear set of the present invention;

[0032] Figure 7 A three-dimensional view of the present invention when a cement tank cover is loaded;

[0033] Figure 8 for Figure 7 A partial enlarged view of the middle A part;

[0034] Fig. 9 It is a structural schematic diagram of the screw drive mechanism in the present invention;

[0035] Fig.10 The internal structure diagram of the present invention when the cement tank cover is loaded.

[0036] Among them: 1-loading platform frame; 11-supporting roller; 12-supporting leg; 13-moving wheel; 2-side plate bracket; 21-guide rod; 22-connecting angle steel; 23-driving screw; 24-synchronous belt; 25-synchronous pulley; 3-lifting platform frame; 31-feeding belt; 311-feeding block; 312-feeding belt shaft; 32-limiting platform frame; 33-guide roller; 4-unloading inclined platform frame; 41-guide wheel; 42-unloading belt; 43-positioning block; 44-unloading belt shaft; 5-transmission gear set ;51-first worm;52-second worm;521-unloading belt worm wheel;53-middle tooth column;531-feeding belt tooth column;6-platform reset handwheel;7-screw driving wheel;71-driving wheel mounting bracket;711-hinged connecting rod;712-mounting rod;713-mounting sleeve;714-buffer spring;715-spring top block;72-driving worm;73-screw worm wheel;74-disengagement block;741-block mounting groove;742-anti-drop latch;743-top block;744-reset spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that, 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; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also 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.

[0039] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0040] Example:

[0041] The specific embodiments of the present invention are as follows Figure 1-10As shown, a cement trough cover paving vehicle comprises a loading platform frame 1 and a material unloading inclined platform frame 4 which are sequentially arranged along the advancing direction of the paving vehicle. Among them, a lifting platform frame 3 which can transfer the cement trough cover on the loading platform frame 1 to the material unloading inclined platform frame 4 and can be lifted vertically is arranged between the loading platform frame 1 and the material unloading inclined platform frame 4. In this embodiment, in order to enable the paving vehicle to advance along the extending direction of the cement trough, two groups of support legs 12 which are respectively arranged on both sides of the moving path of the paving vehicle are connected to the lower part of the loading platform frame 1, and the lower ends of the support legs 12 are connected to moving wheels 13.

[0042] Before use, first place the entire paving vehicle above the cement trough where the cement trough cover is to be laid, so that the two sets of supporting legs 12 at the bottom of the loading platform frame 1 are respectively located on both sides of the extension direction of the cement trough; then, overlap and place multiple cement trough covers on the loading platform frame 1, and place the multiple stacked cement trough covers on the loading side of the lifting platform frame 3, and the preparation work before paving is completed.

[0043] During paving, the paving vehicle can move along the extension direction of the cement trough under the drag of the traction equipment and the rolling of the moving wheels 13. During the movement, the lifting platform frame 3 is at the same level as the cement trough cover plate at the top of its loading side, and the cement trough cover plate can be transferred from the loading platform frame 1 to the unloading inclined platform frame 4, and then laid on the top of the cement trough under the guidance of the unloading inclined platform frame 4. During this transfer and paving process, the lifting platform frame 3 can synchronously descend in level so as to be at the same level as the next cement trough cover plate, and the aforementioned transfer and paving process can be repeated.

[0044] The paving vehicle can lay multiple cement trough covers on the cement trough in sequence while moving along the extension direction of the cement trough. Therefore, the device can replace manual labor and realize automatic paving of cement trough covers, thereby reducing the labor intensity of workers and improving paving efficiency; at the same time, it also avoids the safety hazard of construction workers being injured by cement trough covers.

[0045] In order to realize the transfer of the cement tank cover from the loading platform frame 1 to the unloading inclined platform frame 4, as shown in FIG. Figure 2 , 3As shown: the lifting platform frame 3 is horizontally provided with a plurality of guide rollers 33 which are arranged in sequence along the forward direction of the paving vehicle and are rotatably connected to the lifting platform frame 3 at both ends, and the extension direction of the guide rollers 33 is perpendicular to the forward direction of the paving vehicle. The lifting platform frames 3 at both ends of the guide rollers 33 are horizontally provided with feed belts 31 extending to both sides of the loading platform frame 1 along the forward direction of the paving vehicle, and the belt surfaces of the two feed belts 31 are arranged opposite to each other. Feeding blocks 311 are arranged on the belt surface of the feeding belt 31 at intervals, and a feeding belt shaft 312 for driving the rotational motion of the feeding belt 31 is also arranged on the inner side of the feeding belt 31. Through the rotational motion of the two feeding belts 31, the feeding blocks 311 on the two feeding belts 31 can push the cement trough cover plate from both sides of the cement trough cover plate at the same time, so as to first transfer the cement trough cover plate from the loading platform frame 1 to the guide rollers 33. Afterwards, the cement trough cover is continuously pushed by the feeding block 311, and the guide roller 33 rolls to make the cement trough cover move horizontally onto the unloading inclined platform 4.

[0046] At the same time, in order to realize the guidance of the cement trough cover plate by the unloading inclined platform 4, the cement trough cover plate can be laid on the cement trough, such as Figure 2 As shown: a material unloading inclined platform 4 is provided with a material unloading belt 42 which is inclined from top to bottom along the advancing direction of the paving vehicle. Positioning blocks 43 are arranged at intervals on the belt surface of the material unloading belt 42, and a plurality of material unloading rollers arranged in sequence along the extending direction of the material unloading belt 42 are also horizontally arranged on the inner side of the material unloading belt 42. A material unloading belt shaft 44 for driving its rotational motion is also provided on the inner side of the upper end of the material unloading belt 42. Guide wheels 41 which rotate along the advancing direction of the paving vehicle are provided on the material unloading inclined platforms 4 on both sides of the lower end of the material unloading belt 42. Through the rotational motion of the material unloading belt 42, in conjunction with the positioning blocks 43 on the material unloading belt 42 for limiting the position of the cement trough cover plate, the material unloading belt 42 can transport the cement trough cover plate to the top of the cement trough at a uniform speed, thereby achieving the laying of the cement trough cover plate and avoiding the bumps and damages caused by the free sliding of the cement trough cover plate.

[0047] Furthermore, in order to realize the up and down movement of the lifting platform frame 3, as Figure 1 , 2As shown: the outer side of the lifting platform frame 3 on the opposite side of the two feeding belts 31 is vertically provided with a side panel bracket 2. The upper edges of the two side panel brackets 2 are connected as a whole by connecting angle steels 22. The driving screw 23 that vertically penetrates the lifting platform frame 3 and is threadedly matched with the lifting platform frame 3 is rotatably installed on the two side panel brackets 2. A plurality of guide rods 21 that vertically penetrate the lifting platform frame 3 and are slidably matched with the lifting platform frame 3 are also installed on the two side panel brackets 2. In this embodiment, in order to limit the feeding belt 31 in the vertical direction, a limit platform frame 32 parallel to the lifting platform frame 3 is also provided above the lifting platform frame 3, and the driving screw 23 and the guide rod 21 also pass through the limit platform frame 32. Among them, the driving screw 23 and the limit platform frame 32 are also threadedly matched, and the guide rod 21 and the limit platform frame 32 are also slidably matched up and down.

[0048] The lifting platform frame 3 can be moved up and down by driving the axial rotation of the screw rod 23. Specifically, a screw driving mechanism for driving the axial rotation thereof is provided at the lower end of one of the driving screw rods 23, and a platform reset handwheel 6 is connected to the lower end of the other driving screw rod 23. A synchronous pulley 25 is fixedly sleeved on the rod bodies of the two driving screw rods 23, and the two are connected by a synchronous belt 24. The screw driving mechanism cooperates with the synchronous belt 24 to realize the synchronous axial rotation of the two driving screw rods 23, thereby realizing the descent of the lifting platform frame 3; and the platform reset handwheel 6 cooperates with the synchronous belt 24 to realize the synchronous reverse axial rotation of the two driving screw rods 23, thereby realizing the ascent and reset of the lifting platform frame 3. Such design is mainly for dealing with the situation that the loading platform frame 1 is loaded with multiple stacks of cement trough covers in sequence - when the lifting platform frame 3 completes one descent, it means that a stack of cement trough covers has been laid; at this time, in order for the laying vehicle to continue laying, the staff needs to push the next stack of cement trough covers to the loading side of the lifting platform frame 3, which is done by manpower in this embodiment, and at the same time, the lifting platform frame 3 needs to be raised and reset. Therefore, in this case, the staff can realize the lifting and resetting of the lifting platform frame 3 through the platform reset hand wheel 6.

[0049] In the laying vehicle, the feeding belt shaft 312 and the driving screw 23 are synchronously operated. In order to achieve this goal, as Figure 4 , 5As shown in Figure 6: the lower end of the feeding belt shaft 312 extends to the inside of the lifting platform frame 3, and is connected to the driving screw 23 through the transmission gear set 5 arranged inside the lowering platform frame 3. Specifically, a first worm 51 meshing with the driving screw 23 is provided between the transmission gear set 5 and the driving screw 23, and a worm gear meshing with the transmission gear set 5 is coaxially fixed on the upper end of the first worm 51. An intermediate tooth column 53 meshing with the transmission gear set 5 is provided between the transmission gear set 5 and the feeding belt shaft 312, and the intermediate tooth column 53 is also meshed with a feeding belt tooth column 531 fixedly sleeved on the feeding belt shaft 312. With such a design, the mechanical linkage between the feeding belt shaft 312 and the driving screw 23 can be completed, thereby realizing the synchronous operation of the two. In this embodiment, there is a speed difference between the feeding belt shaft 312 and the driving screw 23, so the transmission gear set 5 adopts a differential gear set.

[0050] At the same time, in the laying vehicle, the unloading belt shaft 44 and the driving screw 23 are synchronously operated. In order to achieve this goal, Figure 4 , 5 As shown in Figure 6: Both ends of the unloading belt shaft 44 extend to the inside of the lifting platform frame 3, and are both connected to the driving screw 23 through the transmission gear set 5 arranged inside the lowering platform frame 3. Specifically, a first worm 51 meshing with the driving screw 23 is provided between the transmission gear set 5 and the driving screw 23, and a worm gear meshing with the transmission gear set 5 is coaxially fixed on the upper end of the first worm 51. A second worm 52 is provided between the transmission gear set 5 and the unloading belt shaft 44, and the second worm 52 meshes with the unloading belt worm wheel 521 fixedly sleeved on the unloading belt shaft 44. A worm gear meshing with the transmission gear set 5 is coaxially fixed on the upper end of the second worm 52. With such a design, the mechanical linkage between the unloading belt shaft 44 and the driving screw 23 can be completed, thereby realizing the synchronous operation of the two. In this embodiment, there is a speed difference between the unloading belt shaft 44 and the driving screw 23, so the transmission gear set 5 adopts a differential gear set.

[0051] It should be noted that the feeding belt shaft 312 and the driving screw 23 , and the unloading belt shaft 44 and the driving screw 23 are connected by the same transmission gear set 5 .

[0052] As for the specific structure of the screw drive mechanism, Figure 8 , 9As shown: the screw drive mechanism includes a driving wheel mounting frame 71, the upper part of the driving wheel mounting frame 71 is connected to the mounting rod 712 vertically mounted on the side plate bracket 2, and the lower part of the driving wheel mounting frame 71 is vertically mounted with a screw driving wheel 7 that can rotate along the forward direction of the paving vehicle. The axis of the screw driving wheel 7 is fixedly connected to one end of a horizontally arranged driving worm 72, and the driving worm 72 is meshed with a screw worm wheel 73 on a fixed sleeve driving screw 23. The friction between the screw driving wheel 7 and the upper edge of the cement trough drives the screw driving wheel 7 to rotate, thereby realizing the rotation of the driving screw 23, and then realizing the paving work of the entire paving vehicle. With such a design, the whole set of equipment does not need a separate external power source, which reduces energy consumption. At the same time, the whole equipment adopts pure mechanical transmission operation, which also ensures the stability of the equipment operation. Of course, in the actual production process, a power source such as a motor can also be used instead of the screw driving mechanism.

[0053] In order to enable the lifting platform frame 3 to rise and reset, Figure 8 , 9 As shown: the upper part of the driving wheel mounting frame 71 is hinged to the lower end of the mounting rod 712 through a hinged connecting rod 711. A shift block mounting block fixed to the lower edge of the side plate bracket 2 is provided above the end of the driving worm 72 away from the screw driving wheel 7, and a shift block mounting groove 741 extending horizontally along the forward direction of the paving vehicle is provided on the shift block mounting block. A disengagement shift block 74 capable of reciprocating along its extension direction is provided in the shift block mounting groove 741 through an anti-drop latch 742, and the lower end of the disengagement shift block 74 is rotatably connected to the end of the driving worm 72. Among them, a return spring 744 with two ends respectively in tight contact with the two is provided horizontally between the side of the disengagement shift block 74 away from the screw worm wheel 73 and the inner wall of one end of the shift block mounting groove 741, and a top block 743 capable of moving up and down and with a gradually reduced cross-sectional area from top to bottom is provided between the side of the disengagement shift block 74 close to the screw worm wheel 73 and the inner wall of the other end of the shift block mounting groove 741. The upper end of the top block 743 is connected to the lifting platform frame 3 through a steel wire rope.

[0054] When the lifting platform frame 3 is lowered to the lowest point, the top block 743 can be pressed downward, thereby pushing the disengagement block 74, so that the driving worm 72 of the screw driving wheel 7 is disengaged from the screw worm wheel 73 on the driving screw 23, thereby preventing the driving worm 72 and the screw worm wheel 73 from getting stuck during the lifting and resetting process of the lifting platform frame 3. When the lifting platform frame 3 moves to a higher point, the top block 743 is pulled by a steel wire rope, and the disengagement block 74 automatically returns to its original position under the action of the reset spring 744, and the driving worm 72 of the screw driving wheel 7 is re-engaged with the screw worm wheel 73 on the driving screw 23.

[0055] In addition, in order to make the screw drive wheel 7 have a certain buffering capacity, such as Figure 8As shown: the mounting rod 712 is mounted on the side plate bracket 2 through two mounting sleeves 713 which are sleeved on the outside and vertically slidably matched with the mounting rod 712. A buffer spring 714 is sleeved on the mounting rod 712 between the two mounting sleeves 713. The upper end of the buffer spring 714 is in tight contact with the mounting sleeve 713 located above, and the lower end is in tight contact with the spring top block 715 fixed on the outside of the mounting rod 712. When the screw driving wheel 7 hits a small stone, a small protrusion, or a small pit, it can be buffered in the vertical direction by the buffer spring 714, thereby maintaining the normal operation of the entire device and will not be stuck due to small stones, small protrusions, or small pits.

[0056] In this embodiment, in order to facilitate the pushing of the cement trough cover plate stacked on the loading platform frame 1, a plurality of stripping rollers 11 are horizontally arranged in sequence along the forward direction of the paving vehicle and the two ends are respectively rotatably connected to the loading platform frame 1. At the same time, in order to keep the entire paving vehicle horizontal, at least one set of support legs 12 is a telescopic support leg. The telescopic support leg can be a common sleeve assembly and is fixed and locked by screws. This belongs to the conventional technical means in the mechanical field, and therefore will not be described in detail here.

[0057] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A cement trough cover paving vehicle, characterized in that: The invention comprises a loading platform frame (1) and a discharging inclined platform frame (4) which are arranged in sequence along the forward direction of the paving vehicle, and a lifting platform frame (3) which can transfer the cement trough cover plate on the loading platform frame (1) to the discharging inclined platform frame (4) and can be lifted vertically is arranged between the loading platform frame (1) and the discharging inclined platform frame (4).

2. The cement trough cover paving vehicle according to claim 1, characterized in that: The lifting platform frame (3) is horizontally provided with a plurality of guide rollers (33) arranged in sequence along the forward direction of the paving vehicle and rotatably connected to the lifting platform frame (3) at both ends, and the extension direction of the guide rollers (33) is perpendicular to the forward direction of the paving vehicle; the lifting platform frames (3) at both ends of the guide rollers (33) are horizontally provided with feeding belts (31) extending along the forward direction of the paving vehicle to both sides of the loading platform frame (1), and the belt surfaces of the two feeding belts (31) are arranged opposite to each other, and feeding blocks (311) are arranged on the belt surfaces of the feeding belts (31) at intervals, and a feeding belt shaft (312) for driving the feeding belt (31) to rotate is also provided on the inner side of the feeding belt (31); The unloading inclined platform (4) is provided with an unloading belt (42) which is inclined from top to bottom along the forward direction of the paving vehicle. Positioning blocks (43) are arranged at intervals on the belt surface of the unloading belt (42). A plurality of unloading rollers arranged in sequence along the extension direction of the unloading belt (42) are also horizontally arranged on the inner side of the unloading belt (42). A unloading belt shaft (44) for driving the unloading belt to rotate is also provided on the inner side of the upper end of the unloading belt (42). Guide wheels (41) which rotate along the forward direction of the paving vehicle are provided on the unloading inclined platforms (4) on both sides of the lower end of the unloading belt (42).

3. The cement trough cover paving vehicle according to claim 2, characterized in that: Side plate brackets (2) are vertically arranged on the outer sides of the lifting platform frames (3) on the opposite sides of the two feeding belts (31); driving screws (23) vertically penetrating the lifting platform frames (3) and threadedly matched with the lifting platform frames (3) are rotatably mounted on the two side plate brackets (2); and a plurality of guide rods (21) vertically penetrating the lifting platform frames (3) and slidably matched with the lifting platform frames (3) are also mounted on the two side plate brackets (2); A screw driving mechanism for driving the axial rotation of one of the driving screws (23) is provided at the lower end, and a platform reset hand wheel (6) is connected to the lower end of the other driving screw (23). A synchronous pulley (25) is fixedly sleeved on the rod bodies of the two driving screws (23), and the two driving screws (23) are connected by a synchronous belt (24).

4. The cement trough cover paving vehicle according to claim 3, characterized in that: The lower end of the feeding belt shaft (312) extends to the inside of the lifting platform frame (3), and is connected to the driving screw (23) through a transmission gear set (5) arranged inside the lowering platform frame (3); A first worm gear (51) meshing with the driving screw (23) is provided between the transmission gear set (5) and the driving screw (23), and a worm gear meshing with the transmission gear set (5) is coaxially fixed on the upper end of the first worm gear (51). An intermediate tooth column (53) meshing with the transmission gear set (5) is provided between the transmission gear set (5) and the feeding belt shaft (312), and the intermediate tooth column (53) is also meshed with a feeding belt tooth column (531) fixedly sleeved on the feeding belt shaft (312).

5. The cement trough cover paving vehicle according to claim 3 or 4, characterized in that: Both ends of the unloading belt shaft (44) extend into the interior of the lifting platform frame (3), and are connected to the driving screw (23) through a transmission gear set (5) arranged inside the lifting platform frame (3); A first worm gear (51) meshing with the driving screw (23) is provided between the transmission gear set (5) and the driving screw (23), and a worm gear meshing with the transmission gear set (5) is coaxially fixed on the upper end of the first worm gear (51). A second worm gear (52) is provided between the transmission gear set (5) and the unloading belt shaft (44), and the second worm gear (52) meshes with a unloading belt worm wheel (521) fixedly sleeved on the unloading belt shaft (44). A worm gear meshing with the transmission gear set (5) is coaxially fixed on the upper end of the second worm gear (52).

6. The cement trough cover paving vehicle according to claim 3, characterized in that: The screw drive mechanism comprises a driving wheel mounting frame (71), the upper portion of the driving wheel mounting frame (71) is connected to a mounting rod (712) vertically mounted on a side plate bracket (2), the lower portion of the driving wheel mounting frame (71) is vertically mounted with a screw driving wheel (7) that can rotate along the forward direction of the paving vehicle, the axis of the screw driving wheel (7) is fixedly connected to one end of a horizontally arranged driving worm (72), and the driving worm (72) is meshed with a screw worm wheel (73) on a fixed sleeve driving screw (23).

7. The cement trough cover paving vehicle according to claim 6, characterized in that: The upper part of the driving wheel mounting frame (71) is hinged to the lower end of the mounting rod (712) through a hinged connecting rod (711); a shift block mounting block fixed to the lower edge of the side plate bracket (2) is provided above the end of the driving worm (72) away from the screw driving wheel (7), and the shift block mounting block is provided with a shift block mounting groove (741) extending horizontally along the forward direction of the paving vehicle, and a disengagement shift block (74) capable of reciprocating along the extension direction thereof is provided in the shift block mounting groove (741), and the lower end of the disengagement shift block (74) is rotatably connected to the end of the driving worm (72); A return spring (744) is horizontally arranged between the side of the disengaging block (74) away from the screw and worm gear (73) and the inner wall of one end of the disengaging block mounting groove (741), and its two ends are respectively in tight contact with both. A top block (743) that can move up and down and whose cross-sectional area gradually decreases from top to bottom is arranged between the side of the disengaging block (74) close to the screw and worm gear (73) and the inner wall of the other end of the disengaging block mounting groove (741). The upper end of the top block (743) is connected to the lifting platform frame (3) by a steel wire rope.

8. The cement trough cover paving vehicle according to claim 6 or 7, characterized in that: The mounting rod (712) is mounted on the side plate bracket (2) via two mounting sleeves (713) which are sleeved on the outside of the mounting rod (712) and vertically slidably matched therewith. A buffer spring (714) is sleeved on the mounting rod (712) between the two mounting sleeves (713). The upper end of the buffer spring (714) is in tight contact with the mounting sleeve (713) located above, and the lower end is in tight contact with a spring top block (715) fixed on the outside of the mounting rod (712).

9. The cement trough cover paving vehicle according to claim 1, characterized in that: The loading platform frame (1) is horizontally provided with a plurality of stripping rollers (11) which are arranged in sequence along the forward direction of the paving vehicle and are rotatably connected to the loading platform frame (1) at both ends; the lower part of the loading platform frame (1) is connected to two groups of support legs (12) which are respectively arranged on both sides of the moving path of the paving vehicle, and the lower ends of the support legs (12) are both connected to moving wheels (13).

10. The cement trough cover paving vehicle according to claim 9, characterized in that: At least one group of support legs (12) is a telescopic support leg.

Images