Automatic push-pull tarpaulin type heavy flat semitrailer for transporting galvanized bare coils

Abstract

The utility model relates to an automatic push-pull tarpaulin type heavy flat-bed semitrailer for transporting galvanized bare rolls, which comprises a flat-bed semitrailer body, a semitrailer front shield, a steel roll support, a tarpaulin, a tarpaulin mechanism and a ventilation curtain, wherein the semitrailer front shield is fixed at the front end of the flat-bed semitrailer body; the plurality of steel coil supports are fixed on a cargo carrying platform of the flat-bed semitrailer body, the last door-shaped frame of the tarpaulin mechanism is fixed at the tail end of the flat-bed semitrailer body, the rest door-shaped frames of the tarpaulin mechanism can slide in a reciprocating mode along the two sides of the flat-bed semitrailer body, and the tarpaulin covers the tarpaulin mechanism. A tarpaulin wall is fixed to the last door-shaped frame of the tarpaulin mechanism, and a ventilation curtain is arranged on the tarpaulin wall. The automatic push-pull tarpaulin type heavy flat semitrailer for transporting the galvanized bare coil is used for transporting galvanized bare coil products in a steel mill by the heavy semitrailer, and has an automatic opening and closing function of the dust cover, so that the galvanized bare coil products are effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty semi-trailer vehicle logistics transportation, in particular to an automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer for transporting galvanized bare coils. Background Art

[0002] With the rapid development of my country's economic construction, the number of heavy-duty flatbed semi-trailers is constantly increasing. In metallurgical transportation enterprises, heavy-duty flatbed semi-trailers need to transport galvanized bare coil products from steel mills; since galvanized bare coil products require waterproof and dustproof treatment during transportation, transportation companies currently generally use the method of manually covering the surface of galvanized bare coils with dust covers for protection. Manual operation not only has low work efficiency but also poses certain safety hazards. Therefore, we designed an automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer for transporting galvanized bare coils. Utility Model Content

[0003] The utility model provides an automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer for transporting galvanized bare coils. The heavy-duty semi-trailer is used to transport galvanized bare coil products in steel plants and has an automatic opening and closing function of the dust cover, thereby achieving effective protection for the galvanized bare coil products.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer for transporting galvanized bare coils, comprising a flatbed semi-trailer body and a semi-trailer front baffle, wherein the semi-trailer front baffle is fixed to the front end of the flatbed semi-trailer body, and further comprising a steel coil support, a tarpaulin, a tarpaulin mechanism, and a ventilation curtain, wherein a plurality of the steel coil supports are fixed to the loading platform of the flatbed semi-trailer body, the last door-type frame of the tarpaulin mechanism is fixed to the very end of the flatbed semi-trailer body, the remaining door-type frames of the tarpaulin mechanism can slide back and forth along both sides of the flatbed semi-trailer body, the tarpaulin covers the tarpaulin mechanism, a tarpaulin wall is fixed to the last door-type frame of the tarpaulin mechanism, and a ventilation curtain is provided on the tarpaulin wall.

[0006] The installation position of the steel coil support fixed on the front end of the cargo platform of the flatbed semi-trailer body is just above the two rows of wheels at the front end of the cargo platform.

[0007] The tarpaulin mechanism includes a walking mechanism, a driving mechanism, a tarpaulin active rod, a tarpaulin driven rod, an "X"-shaped secondary rod, a connecting bracket, a connecting sleeve, and finally a door-type frame. The tarpaulin active rod and the tarpaulin driven rod are both door-type frames. The tarpaulin active rod is arranged at the front end, and several tarpaulin driven rods are arranged on the rear side of the tarpaulin active rod. An "X"-shaped secondary rod is arranged between the tarpaulin active rod and the tarpaulin driven rod and between two adjacent tarpaulin driven rods. The "X"-shaped secondary rod is a hinged structure, and the bottom of the "X"-shaped secondary rod is hinged to the tarpaulin active rod or the tarpaulin driven rod respectively, and the upper end of the "X"-shaped secondary rod is slidably connected to the tarpaulin active rod or the tarpaulin driven rod through a connecting sleeve. The bottom of the tarpaulin active rod is connected to the driving mechanism through a connecting bracket, and the bottoms of the tarpaulin active rod and the tarpaulin driven rod are both connected to the walking mechanism. Under the drive of the driving mechanism, the tarpaulin active rod drives the tarpaulin driven rod to slide back and forth along with the walking mechanism.

[0008] The traveling mechanism comprises a track, an active pulley, a driven pulley and an L-shaped bracket. The L-shaped bracket is fixedly arranged along both sides of the cargo platform of the flatbed semi-trailer body. The track is transversely fixed to the side of the L-shaped bracket. The active pulley and the driven pulley both roll and slide along the track. The active pulley is connected to the active rod of the tarpaulin, and the driven pulley is connected to the driven rod of the tarpaulin.

[0009] The active pulley comprises two pulley rollers, which are arranged up and down and connected to the two sides of the rail head of the track and are rollingly connected to the rail head.

[0010] The driven pulley comprises two pulley rollers, which are arranged up and down and connected to the two sides of the rail head of the track and are rollingly connected to the rail head.

[0011] The driving mechanism includes a driving sprocket, a tensioning sprocket, a chain, a motor drive shaft, and a driving motor. The two driving sprockets arranged on both sides of the cargo platform of the flatbed semi-trailer body are connected to the driving motor through the motor drive shaft. Tensioning sprockets are also arranged on both sides of the cargo platform of the flatbed semi-trailer body. The driving sprocket and the tensioning sprocket on the same side are connected through a chain transmission, and the chain is connected to the connecting bracket.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer of the utility model is used to transport galvanized bare coils, and is provided with a steel coil bracket for positioning the galvanized bare coils, thereby realizing safe transportation of the galvanized bare coils.

[0014] 2) The utility model can expose or cover the semi-trailer cargo platform without relying on manual operation, thereby achieving effective protection of galvanized bare coil products, improving transportation production efficiency, and avoiding safety risks caused by manual operation.

[0015] 3) The push-pull tarpaulin of the utility model is opened and retracted from the front end to the rear end, and the frontmost steel coil is placed directly above the two rows of driving wheels at the front end of the cargo platform, which is used to increase the positive pressure of the driving wheels at the bottom of the cargo platform, thereby increasing the friction at the bottom of the driving wheels and avoiding slipping on icy and snowy roads due to excessive driving force of the driving wheels.

[0016] 4) The utility model provides a ventilation curtain at the end tarpaulin wall of the push-pull tarpaulin, which can reduce the wind resistance generated by the end tarpaulin wall during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the structure of the utility model.

[0018] Figure 2 It is a left view of the structure of the utility model.

[0019] Figure 3 It is a right view of the structure of the utility model.

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a diagram of the push-pull tarpaulin structure of the utility model in a retracted state.

[0022] In the figure: 1- flatbed semi-trailer body 21- driving mechanism 22- walking mechanism 23- tarpaulin mechanism 21.1- motor drive shaft 21.2- driving sprocket 21.3- tensioning sprocket 21.4- chain 21.5- support 21.6- semi-trailer front stop 22.1- track 22.2- active pulley 22.3- driven pulley 22.4- "L" type bracket 23.1- tarpaulin active rod 23.2- tarpaulin driven rod 23.3- "X" type auxiliary rod 23.4- tarpaulin 23.5- connecting bracket 23.6- coupling sleeve 23.7- ventilation curtain 23.8- tarpaulin wall 23.9- the last door frame 31- driving motor 32- motor controller 33- battery, 34- steel coil bracket, 35- steel coil 36- pulley roller. DETAILED DESCRIPTION

[0023] The present invention is described in more detail through examples. These examples are merely descriptions of the best implementation methods of the present invention and do not impose any limitation on the scope of the present invention.

[0024] like Figure 1-Figure 5As shown, an automatic push-pull tarpaulin-type heavy-duty flatbed semi-trailer for transporting galvanized bare coils includes a flatbed semi-trailer body 1 and a semi-trailer front baffle 21.6, wherein the semi-trailer front baffle 21.6 is fixed to the front end of the flatbed semi-trailer body 1, and also includes a steel coil bracket 34, a tarpaulin 23.4, a tarpaulin mechanism 23, and a ventilation curtain 23.7. Several of the steel coil brackets 34 are fixed to the loading platform of the flatbed semi-trailer body 1, the last door frame 23.9 of the tarpaulin mechanism 23 is fixed to the very end of the flatbed semi-trailer body 1, and the remaining door frames of the tarpaulin mechanism 23 can slide back and forth along both sides of the flatbed semi-trailer body 1, the tarpaulin 23.4 covers the tarpaulin mechanism 23, a tarpaulin wall 23.8 is fixed to the last door frame 23.9 of the tarpaulin mechanism 23, and a ventilation curtain 23.7 is provided on the tarpaulin wall 23.8.

[0025] See Figure 5 The installation position of the steel coil bracket 34 fixed to the front end of the cargo platform of the flatbed semi-trailer body 1 is just above the two rows of wheels at the front end of the cargo platform.

[0026] The two rows of wheels at the front end of the cargo platform are the driving wheels of the cargo platform of the flatbed semi-trailer body 1. The utility model extends and retracts the tarpaulin mechanism 23 from front to rear in order to place the steel coil just above the driving wheel of the cargo platform of the flatbed semi-trailer body 1, so as to increase the pressure on the driving wheel, thereby increasing the friction between the driving wheel and the ground, so as to avoid the driving wheel slipping on icy and snowy roads, and increase the installation of steel coils transported on icy and snowy roads.

[0027] The tarpaulin mechanism 23 comprises a walking mechanism 22, a driving mechanism 21, a tarpaulin active rod 23.1, a tarpaulin driven rod 23.2, an "X"-shaped secondary rod 23.3, a connecting bracket 23.5, a connecting sleeve 23.6, and a last door-shaped frame 23.9. The tarpaulin active rod 23.1 and the tarpaulin driven rod 23.2 are both door-shaped frames. The tarpaulin active rod 23.1 is arranged at the front end, and a plurality of the tarpaulin driven rods 23.2 are arranged at the rear side of the tarpaulin active rod 23.1. An "X"-shaped secondary rod 23.3 is arranged between the tarpaulin active rod 23.1 and the tarpaulin driven rod 23.2 and between two adjacent tarpaulin driven rods 23.2. The "X"-shaped secondary rod 23.3 is a hinged structure. The "X"-shaped secondary rod 23. The bottom of the tarpaulin active rod 23.1 or the tarpaulin driven rod 23.2 is hinged respectively, and the upper end of the "X"-shaped auxiliary rod 23.3 is slidably connected to the tarpaulin active rod 23.1 or the tarpaulin driven rod 23.2 through a connecting sleeve 23.6. The bottom of the tarpaulin active rod 23.1 is connected to the driving mechanism 21 through a connecting bracket 23.5. The bottoms of the tarpaulin active rod 23.1 and the tarpaulin driven rod 23.2 are both connected to the walking mechanism 22. Under the drive of the driving mechanism, the tarpaulin active rod 23.1 drives the tarpaulin driven rod 23.2 to slide back and forth along with the walking mechanism. The tarpaulin 23.4 covers the tarpaulin mechanism 23 and is connected to the tarpaulin active rod 23.1, the tarpaulin driven rod 23.2 and the last door-shaped frame 23.9.

[0028] The "X"-shaped auxiliary rod 23.3 is formed by cross-hinging two straight rods, and the upper ends of the two straight rods are respectively hinged with a connecting sleeve 23.6, which is sleeved on the tarpaulin active rod 23.1 or the tarpaulin driven rod 23.2 and is slidably connected to the tarpaulin active rod 23.1 or the tarpaulin driven rod 23.2. The bottoms of the two straight rods are respectively hinged with the bottoms of the tarpaulin active rod 23.1 or the tarpaulin driven rod 23.2.

[0029] See Figure 1 , Figure 3 and Figure 4 The walking mechanism 22 includes a track 22.1, an active pulley 22.2, a driven pulley 22.3, and an "L"-shaped bracket 22.4. The "L"-shaped bracket 22.4 is fixedly arranged along both sides of the cargo platform of the flatbed semi-trailer body 1. The track 22.1 is transversely fixed to the side of the "L"-shaped bracket 22.4. The active pulley 22.2 and the driven pulley 22.3 both roll and slide along the track 22.1. The active pulley 22.2 is connected to the tarpaulin active rod 23.1, and the driven pulley 22.3 is connected to the tarpaulin driven rod 23.2.

[0030] The active pulley 22.2 comprises two pulley rollers 36, which are arranged up and down and connected to the rail head of the track 22.1 on both sides and are rollingly connected to the rail head. The two pulley rollers 36 are connected to the body frame of the active pulley 22.2 through a rotating shaft, and the body frame of the active pulley 22.2 is fixedly connected to the tarpaulin active rod 23.1.

[0031] The driven pulley 22.3 includes two pulley rollers 36, which are arranged up and down and connected to the rail head of the track 22.1 on both sides and are rollingly connected to the rail head. The two pulley rollers 36 are connected to the body frame of the active pulley 22.2 through a rotating shaft, and the body frame of the active pulley 22.2 is fixedly connected to the tarpaulin driven rod 23.2.

[0032] See Figure 1-Figure 4 The driving mechanism 21 includes a driving sprocket 21.2, a tensioning sprocket 21.3, a chain 21.4, a motor drive shaft 21.1, and a driving motor 31. The two driving sprockets 21.2 arranged on both sides of the cargo platform of the flatbed semi-trailer body 1 are connected to the driving motor 31 through the motor drive shaft 21.1. A tensioning sprocket 21.3 is also arranged on both sides of the cargo platform of the flatbed semi-trailer body 1. The driving sprocket 21.2 and the tensioning sprocket 21.3 on the same side are connected through the chain 21.4, and the chain 21.4 is connected to the connecting bracket 23.5.

[0033] The motor drive shaft 21.1 is installed at the lower end of the semitrailer front block 21.6 through a support 21.5, and the motor drive shaft 21.1 is connected to the drive sprocket 21.2 through the splines at both ends, and the drive motor 31 is connected to the motor drive shaft 21.1 through gears. The tensioning sprocket 21.3 is installed at the rear end of the semitrailer platform, and the chain 21.4 is meshed with the drive sprocket 21.2 and the tensioning sprocket 21.3 respectively.

[0034] The electric control system includes a driving motor 31, a motor controller 32, a battery 33, and a connecting cable, etc. The battery 33 is connected to the motor controller 32 via a cable, and the motor controller 32 is connected to the driving motor 31 via a connecting cable.

[0035] The heavy-duty flatbed semi-trailer of the utility model is a standard product. The driving motor 31 drives the driving sprocket 21.2 to rotate, and the chain drives the tarpaulin active rod 23.1 to slide back and forth along the track 22.1, so as to realize the movement of the tarpaulin mechanism 23 and open or close the cargo platform of the semi-trailer; thus, the cargo platform of the automatic push-pull tarpaulin flatbed semi-trailer can be covered to form a relatively closed protective space.

[0036] The above is a detailed introduction to the automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils provided by the utility model. For ordinary technicians in this technical field, the utility model can also be improved and modified without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model. The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical solution and its concept of the utility model, shall be covered within the protection scope of the utility model.

Claims

1. An automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils, comprising a flatbed semi-trailer body and a semi-trailer front baffle, wherein the semi-trailer front baffle is fixed to the front end of the flatbed semi-trailer body, characterized in that: It also includes a steel coil support, a tarpaulin, a tarpaulin mechanism, and a ventilation curtain. Several of the steel coil supports are fixed on the cargo platform of the flatbed semi-trailer body. The last door-type frame of the tarpaulin mechanism is fixed to the very end of the flatbed semi-trailer body. The remaining door-type frames of the tarpaulin mechanism can slide back and forth along both sides of the flatbed semi-trailer body. The tarpaulin covers the tarpaulin mechanism. A tarpaulin wall is fixed on the last door-type frame of the tarpaulin mechanism, and a ventilation curtain is provided on the tarpaulin wall.

2. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 1 is characterized in that: The installation position of the steel coil support fixed on the front end of the cargo platform of the flatbed semi-trailer body is just above the two rows of wheels at the front end of the cargo platform.

3. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 1, characterized in that: The tarpaulin mechanism includes a walking mechanism, a driving mechanism, a tarpaulin active rod, a tarpaulin driven rod, an "X"-shaped secondary rod, a connecting bracket, a connecting sleeve, and finally a door-shaped frame. The tarpaulin active rod and the tarpaulin driven rod are both door-shaped frames. The tarpaulin active rod is arranged at the front end, and a plurality of the tarpaulin driven rods are arranged at the rear side of the tarpaulin active rod. An "X"-shaped secondary rod is arranged between the tarpaulin active rod and the tarpaulin driven rod and between two adjacent tarpaulin driven rods. The "X"-shaped secondary rod is a hinged structure. The bottom is hinged to the tarpaulin active rod or the tarpaulin driven rod respectively, and the upper end of the "X"-shaped sub-rod is slidably connected to the tarpaulin active rod or the tarpaulin driven rod through a connecting sleeve. The bottom of the tarpaulin active rod is connected to the driving mechanism through a connecting bracket. The bottoms of the tarpaulin active rod and the tarpaulin driven rod are both connected to the walking mechanism. Under the drive of the driving mechanism, the tarpaulin active rod drives the tarpaulin driven rod to slide back and forth along with the walking mechanism. The tarpaulin covers the tarpaulin mechanism and is connected to the tarpaulin active rod, the tarpaulin driven rod and the last door-type frame.

4. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 3 is characterized in that: The traveling mechanism comprises a track, an active pulley, a driven pulley and an "L"-shaped bracket. The "L"-shaped bracket is fixedly arranged along both sides of the cargo platform of the flatbed semi-trailer body. The track is transversely fixed to the side of the "L"-shaped bracket. The active pulley and the driven pulley both roll and slide along the track. The active pulley is connected to the tarpaulin active rod, and the driven pulley is connected to the tarpaulin driven rod.

5. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 4, characterized in that: The active pulley comprises two pulley rollers, which are arranged up and down and connected to the two sides of the rail head of the track and are rollingly connected to the rail head.

6. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 4, characterized in that: The driven pulley comprises two pulley rollers, which are arranged up and down and connected to the two sides of the rail head of the track and are rollingly connected to the rail head.

7. The automatic push-pull tarpaulin heavy-duty flatbed semi-trailer for transporting galvanized bare coils according to claim 3, characterized in that: The driving mechanism includes a driving sprocket, a tensioning sprocket, a chain, a motor drive shaft, and a driving motor. The two driving sprockets arranged on both sides of the cargo platform of the flatbed semi-trailer body are connected to the driving motor through the motor drive shaft. Tensioning sprockets are also arranged on both sides of the cargo platform of the flatbed semi-trailer body. The driving sprocket and the tensioning sprocket on the same side are connected through a chain transmission, and the chain is connected to the connecting bracket.

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