Truck carriage loading and unloading device for large goods

Abstract

The invention relates to a loading and unloading device, in particular to a boxcar loading and unloading device for large cargos, which comprises a rack, a cargo loading device and a cargo pushing device, the rack is a liftable rack, lifting oil cylinders are mounted on two sides of the rack, and the cargo loading device capable of moving on the rack is mounted on the upper surface of the rack; the cargo carrying device is composed of a cargo carrying flat plate with walking rollers installed at the bottom. The goods pushing device is installed on the rack through a first groove rail and a second groove rail which are arranged on the two sides of the goods carrying device, and a row of limiting bearing limiting columns are vertically arranged on the edge of the top face of the portion, on one side of the goods carrying device, of the rack. The cargo loading device and the cargo pushing device are fixedly connected with a cargo loading driving assembly and a cargo pushing driving assembly which are arranged in the rack and provide driving power respectively. The cargo loading device and the cargo pushing device are matched, large cargoes can be automatically fed into the compartment from the tail of the compartment, the situation that the top or the side face of the compartment is opened for cargo loading and unloading is avoided, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to a loading and unloading device, in particular to a loading and unloading device for a truck compartment of large goods. Background Art

[0002] When loading goods into a carriage, a manual trailer or forklift is usually used to transport and lift the goods into the rear of the carriage, and then the goods are stacked one by one from the rear of the carriage to the deep part of the carriage by manpower. This requires back and forth transportation and placement, and when unloading the goods, the reverse operation is repeated. This method of loading and unloading goods not only has a low utilization rate of the packaging, but also has low loading and unloading efficiency. When encountering large goods, large cranes or other machinery are required for loading and unloading, and the top cover or side panels of the carriage need to be opened for loading and unloading, which is time-consuming and labor-intensive, with high loading and unloading costs, and it is impossible to achieve efficient loading and unloading of goods in a short time. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and to propose a truck compartment loading and unloading device for large goods.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a truck compartment loading and unloading device for large goods, comprising a frame, a cargo device and a cargo pushing device, the frame being a liftable frame with lifting cylinders installed on both sides, a cargo device movable thereon installed on the upper surface of the frame, the cargo device consisting of a cargo flat plate with walking rollers installed on the bottom; the cargo pushing device is installed on the frame by means of groove rails 1 and 2 arranged on both sides of the cargo device, a row of limit bearing limit columns are vertically arranged on the edge of the top surface of the frame on one side of the cargo device; the cargo device and the cargo pushing device are respectively fixedly connected to a cargo driving assembly and a cargo pushing driving assembly arranged inside the frame and providing driving power.

[0005] As a further technical solution of the present invention, the groove rail 1 and the groove rail 2 can be horizontally arranged on the edge of the top surface of the frame, or vertically arranged on the edge of the side wall of the frame, that is, they can be horizontally arranged on both edges of the top surface of the frame or vertically arranged on both side wall edges of the frame at the same time, or one can be horizontally arranged on the edge of the top surface and the other can be vertically arranged on the edge of the side wall, and can be flexibly arranged according to the width of the table top and the arrangement of the limit columns.

[0006] As a further technical solution of the present invention, the cargo platform is provided with reinforcing ribs at the bottom and a gentle slope is provided at the front end thereof, which can reduce the impact and vibration of the cargo when it falls into the carriage. The cargo platform has a smooth surface and low friction resistance.

[0007] As a further technical solution of the present invention, the cargo pushing device comprises a cargo pushing base and a cargo pushing hydraulic cylinder fixedly installed therein, the hydraulic rod of the cargo pushing hydraulic cylinder extends out of the front end of the cargo pushing base and is laterally provided with a cargo pushing plate, and both sides of the cargo pushing device are slidably mounted on the first and second groove rails on the frame through dovetail groove rails. The size and height of the cargo pushing plate are adaptively changed according to the specific cargo.

[0008] As a further technical solution of the present invention, the cargo drive assembly includes a reduction motor group arranged in the front end of the frame, and the reduction motor group is connected to the gear in the middle of the cargo power shaft arranged on the frame below the cargo flatbed through a chain. At least two grooves are also arranged on the upper surface of the frame, and the cargo power shaft passes through the grooves, and gears are installed on the cargo power shaft in the grooves. A driven shaft passing through the groove is installed in the groove at the other end of the frame, and a gear is installed on the driven shaft in the groove. The cargo power shaft and the gear installed in the groove on the driven shaft are connected by a chain, and the top of the chain is fixedly connected to the bottom of the front end of the cargo flatbed.

[0009] As a further technical solution of the present invention, the pushing drive assembly includes a pushing motor arranged at the rear end of the frame, the output gear of the pushing motor is connected to the gear of the pushing power shaft arranged on the rear end of the frame through a chain, both ends of the pushing power shaft pass through the outside of the frame and are fixedly connected with gears, the gears on both sides are connected to the gears arranged on the two side walls of the front end of the frame through chains, and the chains on both sides are fixedly connected to the bottom of both sides of the pushing device.

[0010] As a further technical solution of the present invention, a synchronization device is also provided in the cargo pushing device, and the synchronization device includes a synchronization shaft fixed on the cargo pushing base, synchronization gears arranged on both sides of the synchronization shaft, and synchronization racks arranged in parallel at positions corresponding to the synchronization gears and fixedly connected to the cargo pushing plate, and the synchronization racks and the synchronization gears are meshed with each other. The synchronization device can ensure that the return hydraulic cylinders on both sides keep synchronous advance and retreat for pushing out and retracting the cargo pushing plate.

[0011] As a further technical solution of the present invention, fixed hooks are hingedly provided on both sides of the rear end of the pushing device, and fixed columns for hanging the fixed hooks are fixedly provided at positions corresponding to the fixed hooks on both sides of the rear end of the frame. It also includes a cylinder fixedly installed on the pushing device, and the cylinder rod of the cylinder is hinged to the middle part of the fixed hook.

[0012] As a further technical solution of the present invention, it also includes a positioning device, which includes a base plate and a movable plate. The base plate is a U-shaped groove, and the movable plate is placed in the U-shaped groove of the base plate. Both ends of the movable plate are fixedly connected to the lifting cylinder. A window is opened in the middle of the movable plate, and a bidirectional hydraulic cylinder is installed at a position on the base plate corresponding to the window. The hydraulic rods at both ends of the bidirectional hydraulic cylinder are fixedly connected to the movable plate.

[0013] As a further technical solution of the present invention, a bearing wheel is fixedly mounted on the upper surface of the base plate.

[0014] As another base plate structure of the present invention, a partition is fixedly installed on the upper surface of the base plate.

[0015] The beneficial effects of the present invention are as follows: the present invention uses a cargo loading device and a cargo pushing device to automatically deliver large cargo from the rear of the carriage into the carriage, avoiding the need to open the top or side of the carriage for loading and unloading cargo, saving time and effort. The setting of the bearing limit column can well regulate the placement of large cargo, and prevent the cargo loading device from deviating from the route and causing misalignment with the carriage opening during its movement. The alignment device and the lifting cylinder can enable the loading and unloading device to quickly align with the carriage opening, greatly reducing the driver's multiple movements of moving the vehicle for alignment, saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0018] Figure 3 For the present invention Figure 2 Center left side diagram.

[0019] Figure 4 It is a schematic diagram of the bottom and part of the cargo platform of the present invention.

[0020] Figure 5 for Figure 1 A partial enlarged schematic diagram of the circled part.

[0021] Figure 6 It is a top view of the pushing device and a side view of the synchronization device.

[0022] Figure 7 It is a partial schematic diagram and a partial enlarged diagram of the cargo pushing device of the present invention when it runs to the tail end.

[0023] Figure 8 It is a schematic diagram of the alignment device and its base plate structure of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of another base plate of the alignment device of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 1 and Figure 2As shown, a loading and unloading device for a truck compartment of large cargo includes a frame 1, a cargo carrying device 2 and a cargo pushing device 3. The frame 1 is a liftable frame with lifting cylinders 11 installed on both sides. The cargo carrying device 2 that can move thereon is installed on the upper surface of the frame 1. Figure 4 As shown, the cargo loading device 2 is composed of a cargo loading platform 21 with running rollers 22 installed at the bottom; the cargo loading platform 21 is provided with reinforcing ribs 23 at the bottom, and a gentle slope 24 is transversely provided at the front end thereof, and the gentle slope 24 can reduce the impact vibration of the cargo 7 when it falls into the carriage 6. The cargo loading platform 21 has a smooth surface and low friction resistance. Figure 3 As shown, the cargo pushing device 3 is installed on the frame 1 through the groove rail 1 31 and the groove rail 2 32 arranged on both sides of the cargo carrying device 2, and a row of limit bearing limit columns 12 are vertically arranged on the top edge of the frame 1 on one side of the cargo carrying device 2; the cargo carrying device 2 and the cargo pushing device 3 are respectively fixedly connected to the cargo carrying drive assembly 4 and the cargo pushing drive assembly 5 which are arranged inside the frame 1 and provide driving power.

[0027] like Figure 3 As shown, the groove rail 1 31 and the groove rail 2 32 can be horizontally arranged on the edge of the top surface of the frame 1, or vertically arranged on the edge of the side wall of the frame 1, that is, they can be horizontally arranged on both edges of the top surface of the frame 1 or vertically arranged on both side wall edges of the frame 1, or one can be horizontally arranged on the edge of the top surface and the other vertically arranged on the edge of the side wall, and can be flexibly arranged according to the width of the table top and the arrangement of the limit columns.

[0028] As shown Figure 3 and Figure 6 , 7 As shown, the cargo pushing device 3 includes a cargo pushing base 30 and a cargo pushing hydraulic cylinder 33 fixedly installed therein, the hydraulic rod of the cargo pushing hydraulic cylinder 33 extends out of the front end of the cargo pushing base 30 and is laterally provided with a cargo pushing plate 34, and both sides of the cargo pushing device 3 are slidably installed on the first groove rail 31 and the second groove rail 32 on the frame 1 through dovetail groove rails. The size and height position of the cargo pushing plate 34 are adaptively changed according to the specific cargo 7.

[0029] like Figure 2 and Figure 3 , 5As shown, the cargo driving assembly 4 includes a reduction motor group 41 arranged in the front end of the frame 1, and the reduction motor group 41 is connected to the gear in the middle of the cargo power shaft 42 arranged on the frame 1 below the cargo flatbed 21 through a chain. At least two grooves 13 are also provided on the upper surface of the frame 1, and the cargo power shaft 42 passes through the grooves 13, and gears are installed on the cargo power shaft 42 in the grooves 13. A driven shaft 43 passing through the groove 13 at the other end of the frame 1 is installed, and a gear is installed on the driven shaft 43 in the groove 13. The cargo power shaft 42 is connected to the gear installed in the groove on the driven shaft 43 through a chain, and the top of the chain is fixedly connected to the bottom of the front end of the cargo flatbed 21.

[0030] like Figure 2 As shown, the pushing drive assembly 5 includes a pushing motor 5 arranged at the rear end of the frame 1, and the output gear of the pushing motor 5 is connected to a pushing power shaft 51 arranged at the rear end of the frame 1. Both ends of the pushing power shaft 51 pass through the outside of the frame and are fixedly connected to gears, which are connected to gears arranged on the two side walls of the front end of the frame 1 through chains, as shown in FIG. Figure 3 As shown, the chain is fixedly connected to the bottom of the cargo pushing device 3.

[0031] like Figure 6 As shown, a synchronization device is also provided in the pushing device 3, and the synchronization device includes a synchronization shaft 35 fixed on the pushing base 30, a synchronization gear 36 arranged on both sides of the synchronization shaft 35, and a synchronization rack 37 arranged in parallel at a corresponding position of the synchronization gear 36 and fixedly connected to the pushing plate 34, and the synchronization rack 37 and the synchronization gear 36 are meshed with each other.

[0032] like Figure 7 As shown, the cargo pushing device 3 is also hingedly provided with fixed hooks 38 on both sides of the rear end, and the frame 1 is fixedly provided with fixed columns 14 for hanging the fixed hooks 38 at positions corresponding to the fixed hooks 38 on both sides of the rear end, and also includes a cylinder 39 fixedly installed on the cargo pushing device 3, and the cylinder rod of the cylinder 39 is hinged to the middle part of the fixed hook 38.

[0033] like Figure 8 As shown, the present invention also includes a positioning device 15, which includes a base plate 151 and a movable plate 152. The base plate 151 is a U-shaped groove, and the movable plate 152 is placed in the U-shaped groove of the base plate 151. Both ends of the movable plate 152 are fixedly connected to the lifting cylinder 11. A window is opened in the middle of the movable plate 152, and a two-way hydraulic cylinder 153 is installed at a position corresponding to the window on the base plate 151. The hydraulic rods at both ends of the two-way hydraulic cylinder 153 are fixedly connected to the movable plate 152.

[0034] like Figure 8 and Fig. 9As shown, the bottom plate 151 and the movable plate 152 may be in direct contact with each other, or a bearing wheel 154 or a partition plate 155 may be fixedly mounted on the upper surface of the bottom plate 151 to reduce the friction between the two.

[0035] When the present invention is working, the rear end of the carriage 6 is aligned with the end of the loading and unloading device, and the floor of the carriage 6 is flush with the bottom of the cargo device 2 by adjusting the lifting cylinder 11 and the alignment device 15 under the frame 1. First, the large cargo 7 is stacked on the cargo flatbed 21 of the cargo device 2, and it is horizontally close to the bearing limit column 12. After the cargo device 2 is filled with the cargo 7 that can be loaded on the entire carriage 6, the cargo driving assembly 4 is started to drive the cargo device 2 into the carriage 6, and the pushing driving assembly 5 is started synchronously to make the pushing device 3 follow the cargo 7. After the entire cargo device 2 enters the carriage 6, the cargo driving assembly 4 and the pushing driving assembly 5 are stopped. Then the cylinder is started to hang the fixed hook 38 of the pushing device 3 on the fixed column 14 to fix the pushing device 3. The pushing plate 21 is extended to push the cargo 7 further into the carriage opening to prevent the cargo 7 from interfering with the opening and closing of the carriage door. Then, the cargo driving assembly 4 is started to rotate in the opposite direction, so that the cargo flatbed 21 of the cargo carrying device 2 is retracted, and the cargo 7 naturally falls on the bottom plate of the carriage 6.

Claims

1. A truck compartment loading and unloading device for large cargo, comprising a frame (1), a cargo loading device (2) and a cargo pushing device (3), characterized in that: The frame (1) is a liftable frame, with lifting cylinders (11) installed on both sides. A cargo carrying device (2) movable thereon is installed on the upper surface of the frame (1), and the cargo carrying device (2) is composed of a cargo carrying flat plate (21) with walking rollers (22) installed at the bottom. The cargo pushing device (3) is installed on the frame (1) through a first groove rail (31) and a second groove rail (32) arranged on both sides of the cargo carrying device (2). A row of limit bearing limit columns (12) are vertically arranged on the edge of the top surface of the frame (1) on one side of the cargo carrying device (2). The cargo carrying device (2) and the cargo pushing device (3) are respectively fixedly connected to a cargo carrying drive assembly (4) and a cargo pushing drive assembly (5) arranged inside the frame (1) and providing driving power.

2. A truck compartment loading and unloading device for large cargo according to claim 1, characterized in that: The first groove rail (31) and the second groove rail (32) can be arranged horizontally on the edge of the top surface of the frame (1), or vertically on the edge of the side wall of the frame (1). The bottom of the cargo platform (21) is provided with a reinforcing rib (23), and the front end thereof is laterally provided with a gentle slope (24). The surface of the cargo platform (21) is smooth and has low friction resistance.

3. A truck compartment loading and unloading device for large cargo according to claim 2, characterized in that: The cargo pushing device (3) comprises a cargo pushing base (30) and a cargo pushing hydraulic cylinder (33) fixedly mounted therein, a hydraulic rod of the cargo pushing hydraulic cylinder (33) extending out of the front end of the cargo pushing base (30) and being laterally provided with a cargo pushing plate (34), and two sides of the cargo pushing device (3) being slidably mounted on a first groove rail (31) and a second groove rail (32) on the frame (1) via dovetail groove rails.

4. A truck compartment loading and unloading device for large cargo according to claim 3, characterized in that: The cargo driving assembly (4) comprises a reduction motor group (41) arranged in the front end of the frame (1), the reduction motor group (41) being connected to a gear in the middle of a cargo power shaft (42) arranged on the frame (1) below the cargo flatbed (21) via a chain, at least two grooves (13) are also arranged on the upper surface of the frame (1), the cargo power shaft (42) passes through the grooves (13), and gears are installed on the cargo power shaft (42) in the grooves (13), a driven shaft (43) passing through the grooves (13) is installed in the grooves (13) at the other end of the frame (1), and a gear is installed on the driven shaft (43) in the grooves (13), the cargo power shaft (42) and the gear installed in the grooves on the driven shaft (43) are connected via a chain, and the top of the chain is fixedly connected to the bottom of the front end of the cargo flatbed (21).

5. A truck compartment loading and unloading device for large cargo according to claim 3, characterized in that: The pushing drive assembly (5) comprises a pushing motor (5) arranged at the rear end of the frame (1); the output gear of the pushing motor (5) is connected to the gear of a pushing power shaft (51) arranged at the rear end of the frame (1) via a chain; both ends of the pushing power shaft (51) pass through the outside of the frame and are fixedly connected to gears; the gears on both sides are connected to gears arranged on both side walls of the front end of the frame (1) via chains; and the chains on both sides are fixedly connected to the bottom of both sides of the pushing device (3).

6. A truck compartment loading and unloading device for large cargo according to claim 3, characterized in that: The pushing device (3) is also provided with a synchronizing device, comprising a synchronizing shaft (35) fixed on the pushing base (30), synchronizing gears (36) arranged on both sides of the synchronizing shaft (35), and a synchronizing rack (37) arranged in parallel at a position corresponding to the synchronizing gear (36) and fixedly connected to the pushing plate (34), wherein the synchronizing rack (37) and the synchronizing gear (36) are meshed with each other.

7. A truck compartment loading and unloading device for large cargo according to claim 3, characterized in that: The cargo pushing device (3) is also hingedly provided with fixed hooks (38) on both sides of the rear end, and the frame (1) is fixedly provided with fixed columns (14) for hanging the fixed hooks (38) at positions corresponding to the fixed hooks (38) on both sides of the rear end, and also includes a cylinder (39) fixedly mounted on the cargo pushing device (3), and the cylinder rod of the cylinder (39) is hingedly connected to the middle part of the fixed hook (38).

8. A truck compartment loading and unloading device for large cargo according to claim 3, characterized in that: The device also comprises a positioning device (15), the positioning device (15) comprising a bottom plate (151) and a movable plate (152), the bottom plate (151) being a U-shaped groove, the movable plate (152) being placed in the U-shaped groove of the bottom plate (151), the two ends of the movable plate (152) being fixedly connected to the lifting cylinder (11), the middle of the movable plate (152) being provided with a window, a bidirectional hydraulic cylinder (153) being installed at a position on the bottom plate (151) corresponding to the window, and the hydraulic rods at the two ends of the bidirectional hydraulic cylinder (153) being fixedly connected to the movable plate (152).

9. A truck compartment loading and unloading device for large cargo according to claim 9, characterized in that: A bearing wheel (154) is fixedly mounted on the upper surface of the bottom plate (151).

10. A truck compartment loading and unloading device for large cargo according to claim 9, characterized in that: A partition plate (155) is fixedly mounted on the upper surface of the bottom plate (151).

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