Unloading platform for calcium carbide raw material transport vehicle

Abstract

According to the unloading platform for the calcium carbide raw material transport vehicle, when the transport vehicle drives into the unloading platform, positioning baffles on the front side and the rear side of a transport vehicle positioning device stretch out of a transport vehicle bearing flat plate along with stroke change of a positioning hydraulic cylinder, so that the transport vehicle is accurately positioned and completely enters an expected position; when the transport vehicle is driven into the unloading platform and completely enters an expected position through the transport vehicle positioning device, the clamping baffle of the transport vehicle clamping device clamps from the two ends of the transport vehicle bearing flat plate to the middle of the transport vehicle bearing flat plate along with the stroke change of the clamping hydraulic cylinder, and the clamping device is tightly attached to the transport vehicle through hydraulic force generated by the clamping hydraulic cylinder. When the unloading platform topples over, the traction rope of the traction bearing device of the transport vehicle is arranged on a wheel on one side of the transport vehicle in a sleeving mode when the unloading platform topples over, and the transport vehicle is tensioned through tensioning force generated by winding the traction rope through the roller when the unloading platform topples over. The bottom of the unloading platform and the transport vehicle are integrally rollover, manual unloading is avoided, and the unloading efficiency is higher, more efficient and more economical.

Description

Technical Field

[0001] This patent belongs to the field of unloading and equipment of transport vehicles, specifically designing a side-tilt unloading method and unloading platform. Background Art

[0002] Calcium carbide is a chemical substance that produces acetylene gas, and its main raw materials include limestone and coke. Calcium carbide raw materials will produce harmful gases such as carbon monoxide and sulfur dioxide during production and use, which are very harmful to the human body and the environment. Moreover, the production process of calcium carbide involves dangerous factors such as high temperature. If you do not pay attention to safe operation, accidents are likely to occur. Therefore, in order to protect the lives of workers and the health of the environment, the loading and unloading of calcium carbide raw materials usually needs to be carried out in an automated or semi-automated manner to reduce the health hazards and safety risks of manual operation;

[0003] At present, in terms of unloading transport vehicles loaded with chemical materials, the traditional manual loading and unloading methods have the problems of high labor intensity, low work efficiency, health hazards and safety risks. In order to improve loading and unloading efficiency and reduce labor intensity, some enterprises and places have adopted improved loading and unloading equipment and technology. Among them, a common improvement method is to use loaders for loading and unloading. The modified loader pushes the goods down to speed up the unloading speed. However, this method is limited by factors such as terrain and site, and cannot fundamentally solve the unloading problem.

[0004] The existing unloading platform of transport vehicles has problems such as not being able to meet the requirements of rollover, the rollover transport vehicle will tip over, and poor practicality. For example, the Chinese invention patent with the authorization announcement number CN 216472052 U and the authorization announcement date of 2022.05.10 discloses a mobile rear dumping unloading platform. The patent adopts a vehicle blocking device set at the tail end of the flip table, and unloading is achieved by lifting two lifting hydraulic cylinders set on both sides of the bottom support platform. The device has the problem that the vehicle blocking device alone is not enough to withstand the gravity of the transport vehicle, and it is difficult to meet the requirements of unloading from the side.

[0005] For example, a Chinese invention patent with a grant announcement number of CN 217201010 U and an authorization announcement date of 2022.08.16 discloses a rollover unloading platform, in which a hydraulic cylinder is arranged between the unloading platform and the platform frame, and the push rod of the hydraulic cylinder is hinged to the unloading platform. The unloading platform rolls over under the push of the hydraulic rod, so that the transport vehicle on the unloading platform unloads from the side door. The device has the problem of not having a device on the side to bear the gravity of the transport vehicle, and the transport vehicle will roll over when the unloading platform is unloading. Summary of the invention

[0006] In view of the deficiencies and defects of the above-mentioned prior art, the object of the present invention is to propose a unloading platform for calcium carbide raw material transport vehicles, which solves the problems that the existing ones cannot meet rollover requirements, rollover transport vehicles will tip over, and the practicability is poor, etc.

[0007] To solve the above problems, the present invention adopts the following technical solutions to achieve:

[0008] A unloading platform for calcium carbide raw material transport vehicles mainly includes a transport vehicle load-bearing flat plate, a transport vehicle traction load-bearing device, a transport vehicle positioning device, a transport vehicle clamping device, a lifting hydraulic cylinder, and a fixed support column;

[0009] The unloading platform is a rectangular platform, equipped with a transport vehicle load-bearing flat plate, a hydraulic lifting device, and a fixed support column; the transport vehicle load-bearing flat plate adopts a hollow structure inside, which is used for the transport vehicle positioning device and the transport vehicle clamping device; the installed hydraulic lifting device includes a hinge support and a lifting hydraulic cylinder; the hinge support is installed at the bottom of the transport vehicle load-bearing flat plate; the lifting hydraulic cylinder is located on one side of the bottom of the transport vehicle load-bearing flat plate, and the upper section of the lifting hydraulic cylinder barrel is connected to the unloading platform through the hinge support; the fixed support column is located on the other side of the bottom of the transport vehicle load-bearing flat plate and is connected to the unloading platform through the hinge support; as the stroke of the hydraulic cylinder changes, the height of one side of the unloading platform changes, and the transport vehicle located on the unloading platform will dump the calcium carbide raw materials as the height of one side changes;

[0010] The transport vehicle traction load-bearing device consists of two main parts: a traction rope and a drum; the traction rope is a high-strength steel wire rope, which is sleeved on the wheels on one side of the transport vehicle to prevent side slip when the unloading platform tips over; the drum is installed at the bottom of the unloading platform through the drum frames at both ends, and tightens the transport vehicle through the tension force generated by winding the traction rope when the unloading platform tips over, avoiding the transport vehicle from tipping over;

[0011] The transport vehicle positioning device consists of two main parts: a positioning hydraulic cylinder and a positioning baffle; the lower section of the positioning hydraulic cylinder is fixed inside the transport vehicle load-bearing flat plate, and the upper section of the positioning hydraulic cylinder is connected to the positioning baffle; rectangular holes corresponding to the positioning baffle are opened on the transport vehicle load-bearing flat plate. When the transport vehicle drives into the unloading platform, the front positioning baffle extends out of the transport vehicle load-bearing flat plate as the stroke of the positioning hydraulic cylinder changes. When the transport vehicle completely drives into the unloading platform, the rear positioning baffle extends out of the transport vehicle load-bearing flat plate as the stroke of the positioning hydraulic cylinder changes, and the transport vehicle is precisely positioned and completely enters the expected position;

[0012] The described clamping device for transport vehicles consists of two parts: a clamping hydraulic cylinder and a clamping baffle. The lower section of the clamping hydraulic cylinder is fixed on both sides inside the load-bearing flat plate of the transport vehicle, and the upper section of the clamping hydraulic cylinder is connected to the clamping baffle. There are holes corresponding to the clamping baffle on the load-bearing flat plate of the transport vehicle. When the transport vehicle drives into the unloading platform and completely enters the expected position through the transport vehicle positioning device, the two-sided clamping baffles clamp from both ends of the load-bearing flat plate of the transport vehicle towards the middle as the stroke of the clamping hydraulic cylinder changes. The clamping device tightly adheres to the transport vehicle through the hydraulic pressure generated by the clamping hydraulic cylinder, generating a huge frictional force to prevent the transport vehicle from tipping over when the unloading platform tilts to one side.

[0013] The technical features of the present invention are:

[0014] The described unloading platform is connected to the fixed struts at the bottom of the unloading platform through a lifting hydraulic cylinder and the load-bearing flat plate of the transport vehicle to form an integrated whole, realizing the overall side tipping of the bottom of the unloading platform together with the transport vehicle, avoiding manual unloading, and having high unloading efficiency.

[0015] The front and rear clamping plates of the designed clamping device for transport vehicles can tightly adhere to the wheels of the transport vehicle, preventing the transport vehicle from falling off the unloading platform due to its own gravity when the unloading platform dumps chemical raw materials.

[0016] The designed transport vehicle positioning device can ensure that the transport vehicle accurately stops at the preset position, playing a positioning role for the transport vehicle, enabling the front and rear clamping plates of the vehicle clamping device to accurately clamp the wheels, and avoiding the transport vehicle falling off the unloading platform due to uneven clamping forces on each wheel.

[0017] After the front and rear clamping plates of the designed transport vehicle traction and load-bearing device clamp the wheels of the transport vehicle, the traction rope of the traction and load-bearing device is sleeved on one side of the wheel, sharing a part of the self-weight of the transport vehicle, and avoiding the transport vehicle falling off the unloading platform due to insufficient clamping force of the clamping device.

[0018] Compared with the prior art, the beneficial technical effects of this patent are: The present invention is provided with a load-bearing flat plate for transport vehicles, a transport vehicle traction and load-bearing device, a transport vehicle positioning device, and a transport vehicle clamping device. The push rod of the hydraulic cylinder is hinged to the load-bearing flat plate of the transport vehicle. The unloading platform tilts as the stroke of the hydraulic rod changes, enabling the calcium carbide raw materials in the transport vehicle fixed on the unloading platform to be unloaded from the side door, greatly saving manpower.

[0019] The present invention is provided with a transport vehicle positioning device and a transport vehicle clamping device on the unloading platform, enabling the transport vehicle to maintain a certain position on the unloading platform and not easily slide. The structure is simple, ensuring the stability of the transport vehicle on the unloading platform. Further features and aspects of the present invention will be clearly described in the following detailed description with reference to the accompanying drawings.

[0020] (1) This device is mostly implemented by a mechanical structure, with a simple structure and low production cost.

[0021] (2) The clamping plate of the vehicle clamping device and the towing rope of the vehicle towing and load-bearing device of this device can be replaced regularly, and it is easy to maintain.

[0022] (4) This device is easy to operate, saves manpower, has advantages such as high work efficiency and environmental protection, and can avoid potential safety hazards to personnel. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the unloading platform for the calcium carbide raw material transport vehicle of the present invention

[0024] Figure 2 is a structural diagram of the load-bearing flat plate of the transport vehicle of the present invention

[0025] Figure 3 is a structural diagram of the lifting hydraulic cylinder and fixed support column of the present invention

[0026] Figure 4 is a structural diagram of the transport vehicle positioning device of the present invention

[0027] Figure 5 is a structural diagram of the transport vehicle clamping device of the present invention

[0028] Figure 6 is a structural diagram of the transport vehicle towing and load-bearing device of the present invention

[0029] The meanings of the reference numerals in the figure are as follows: 1 - transport vehicle, 2 - transport vehicle towing and load-bearing device, 3 - load-bearing flat plate of transport vehicle, 4 - lifting hydraulic cylinder, 5 - fixed support column, 6 - transport vehicle clamping device, 7 - transport vehicle positioning device;

[0030] 8 - steel frame, 9 - clamping plate guide hole, 10 - positioning flat plate extension hole;

[0031] 11 - hinge support, 12 - upper chamber of lifting hydraulic cylinder, 13 - lower chamber of lifting hydraulic cylinder, 14 - fixed support column;

[0032] 15 - positioning flat plate, 16 - upper chamber of positioning hydraulic cylinder, 17 - lower chamber of positioning hydraulic cylinder, 18 - positioning hydraulic cylinder mounting seat;

[0033] 19 - clamping plate, 20 - upper chamber of clamping hydraulic cylinder, 21 - lower chamber of clamping hydraulic cylinder, 22 - clamping hydraulic cylinder mounting seat;

[0035] 23 - rope buckle, 24 - towing rope, 25 - towing drum, 26 - drum frame, 27 - drum seat; Detailed implementation mode

[0036] The following further elaborates on the specific content of the present invention in conjunction with the accompanying drawings and embodiments. The implementation scope of the present invention is not limited thereto. Any equivalent transformation based on the technical solution of this application falls within the protection scope of the present invention. In the description of this patent, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this patent 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. Therefore, it cannot be understood as a limitation to this patent. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of this patent, unless otherwise stated, the meaning of "plurality" is two or more. In the description of this patent, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood through specific circumstances.

[0037] As Figures 1 to 6 Shown are the overall structure diagram and the part structure diagram of this patent. An unloading platform for a calcium carbide raw material transportation vehicle shown in this example enables the calcium carbide raw material in the transportation vehicle fixed on the unloading platform to be unloaded from the side door. The device includes a transportation vehicle 1, a transportation vehicle traction and load-bearing device 2, a transportation vehicle load-bearing flat plate 3, a lifting hydraulic cylinder 4, a fixed support 5, a transportation vehicle clamping device 6, and a transportation vehicle positioning device 7.

[0038] The transportation vehicle 1 is used as an auxiliary vehicle for demonstrating the effect of the unloading platform;

[0038] The traction and load-bearing device 2 of the transport vehicle includes a rope buckle 23, a traction rope 24, a traction drum 25, a drum frame 26, and a drum base 27. The traction and load-bearing device 2 of the transport vehicle is installed on one side of the unloading platform. The drum 25 is installed on the drum base 27 through the drum frames at both ends thereof. It is necessary to ensure that the two drums 25 are concentric, and the two traction and load-bearing devices 2 of the transport vehicle are at the same height to ensure uniform and equal force on both. The rope buckle 23 is used to restrain the traction rope 24. When the unloading platform tilts, the transport vehicle is tightened by the tension generated by winding the traction rope 24 to prevent the transport vehicle from tipping over;

[0038] The load-bearing flat plate 3 of the transport vehicle includes a steel frame 8, a clamping plate guide hole 9, and a positioning pile extension hole 10. The steel frame 8 serves as a platform for placing the transport vehicle 1. Four clamping plate guide holes 9 are opened on the steel frame 8. The guiding strokes of the four clamping guide holes 9 are equal and are used for guiding the clamping plate 19 to ensure that the clamping plate 19 can be smoothly clamped inward. Four positioning flat plate extension holes 10 are used for the extension limit of the positioning flat plate 15. The four clamping plate guide holes 9 and the four positioning flat plate extension holes 10 limit the incoming transport vehicle 1 to ensure that the transport vehicle 1 accurately drives into the working position;

[0039] The lifting hydraulic cylinder 4 is located on one side of the bottom of the load-bearing flat plate 2 of the transport vehicle. The upper cavity 12 of the lifting hydraulic cylinder is connected to the bottom of the load-bearing flat plate 2 of the transport vehicle through a hinge support 11. The lower cavity 13 of the lifting hydraulic cylinder is fixed to the ground. Four lifting hydraulic cylinders 4 are installed on one side of the bottom of the load-bearing flat plate 2 of the transport vehicle. The centers of the four lifting hydraulic cylinders are located on the same straight line along the length direction of the load-bearing flat plate 2 of the transport vehicle and are installed at equal intervals to ensure uniform force on the four lifting hydraulic cylinders;

[0040] The fixed support column 5 is located on the other side of the bottom of the load-bearing flat plate 2 of the transport vehicle and is connected to the bottom of the load-bearing flat plate 2 of the transport vehicle through a hinge support 11. Similarly, the centers of the four fixed support columns 5 are located on the same straight line along the length direction of the load-bearing flat plate 2 of the transport vehicle and are installed at equal intervals to ensure uniform force on the four fixed support columns 5;

[0041] The transport vehicle clamping device 6 includes an upper cavity 20 of the clamping hydraulic cylinder, a lower cavity 21 of the clamping hydraulic cylinder, a hydraulic cylinder seat 22, and a clamping baffle 19. The lower cavity 21 of the clamping hydraulic cylinder is fixed to both sides inside the load-bearing flat plate 2 of the transport vehicle through the hydraulic cylinder seat 22, and the upper cavity 20 of the clamping hydraulic cylinder is connected to the clamping baffle 19. The clamping baffles 19 of the transport vehicle clamping device 6 are symmetrically arranged along the length direction of the load-bearing flat plate 2 of the transport vehicle to ensure that the clamping plate 19 can be smoothly clamped inward along the clamping plate guide hole 9;

[0042] The transportation vehicle positioning device 7 positions the upper chamber 16 of the positioning hydraulic cylinder, the lower chamber 17 of the positioning hydraulic cylinder, the hydraulic cylinder seat 18, and the positioning baffle 15; the lower chamber 17 of the positioning hydraulic cylinder is fixed inside the load-bearing flat plate 2 of the transportation vehicle through the hydraulic cylinder seat 18, and the upper chamber 16 of the positioning hydraulic cylinder is connected to the positioning baffle 15; the positioning baffles 15 of the transportation vehicle positioning device 7 are symmetrically arranged along the length direction of the load-bearing flat plate 2 of the transportation vehicle to ensure that the positioning baffle 15 extends smoothly along the positioning flat plate through hole 10. The usage process of the device in this patent:

[0043] First step, drive the transportation vehicle onto the load-bearing flat plate of the unloading platform.

[0044] Second step, when the front wheels of the transportation vehicle drive onto the load-bearing flat plate of the transportation vehicle, the front-side positioning baffle of the vehicle positioning device extends from the front end of the load-bearing flat plate of the transportation vehicle. When the front wheels of the transportation vehicle drive to contact the front-side positioning baffle, the rear-side positioning baffle of the vehicle positioning device extends from the rear end of the load-bearing flat plate of the transportation vehicle to achieve the front and rear positioning of the transportation vehicle.

[0045] Third step, when the transportation vehicle is completely positioned front and rear, the vehicle clamping device moves closer to the middle from both left and right sides of the load-bearing flat plate of the transportation vehicle until it completely contacts the wheels on both sides of the transportation vehicle, and the lifting hydraulic cylinders on both sides provide clamping force to clamp the wheels.

[0046] Fourth step, put the high-strength steel wire rope of the vehicle traction load-bearing device on one side wheel, and the roller winds the traction rope to generate a tension force to tighten the transportation vehicle.

[0047] Fifth step, change the stroke of the lifting hydraulic cylinder on one side of the bottom of the load-bearing flat plate of the transportation vehicle, change the height of one side of the unloading platform, and the transportation vehicle located on the unloading platform will dump the calcium carbide raw material as the height of one side changes.

[0048] It should be noted that the above-described embodiments are illustrative rather than restrictive of the technical solution of this patent. Equivalent replacements by those of ordinary skill in the art or other modifications made according to existing technologies shall be included within the scope of the rights and scope required by this patent as long as they do not exceed the idea and scope of the technical solution of this patent.

Claims

1. An unloading platform for a transport vehicle of calcium carbide raw materials, the device comprising a transport vehicle 1, a transport vehicle traction and load-bearing device 2, a transport vehicle load-bearing flat plate 3, a lifting hydraulic cylinder 4, a fixed support column 5, a transport vehicle clamping device 6, and a transport vehicle positioning device 7. It is characterized in that: The traction and load-bearing device 2 of the transport vehicle includes a rope buckle 23, a traction rope 24, a traction drum 25, a drum frame 26, and a drum base 27. The traction and load-bearing device 2 of the transport vehicle is installed on one side of the unloading platform. The drum 25 is installed on the drum base 27 through the drum frames at its two ends. The load-bearing flat plate 3 of the transport vehicle includes a steel frame 8, a clamping plate guide hole 9, and a positioning pile protruding hole 10. The lifting hydraulic cylinder 4 is located at one side of the bottom of the load-bearing flat plate 2 of the transport vehicle. The upper chamber 12 of the lifting hydraulic cylinder is connected to the bottom of the load-bearing flat plate 2 of the transport vehicle through a hinge support 11, and the lower chamber 13 of the lifting hydraulic cylinder is fixed to the ground. The fixed support column 5 is located on the other side of the bottom of the load-bearing flat plate 2 of the transport vehicle and is connected to the bottom of the load-bearing flat plate 2 of the transport vehicle through a hinge support 11. The clamping device 6 of the transport vehicle includes an upper chamber 20 of the clamping hydraulic cylinder, a lower chamber 21 of the clamping hydraulic cylinder, a hydraulic cylinder seat 22, and a clamping baffle 19. The positioning device 7 of the transport vehicle includes an upper chamber 16 of the positioning hydraulic cylinder, a lower chamber 17 of the positioning hydraulic cylinder, a hydraulic cylinder seat 18, and a positioning baffle 15.

2. The unloader platform for the calcium carbide raw material transport vehicle according to claim 1, wherein, The clamping flat plate 19 of the clamping device 6 of the transport vehicle can closely adhere to the wheels of the transport vehicle 1 under the action of the upper chamber 20 and the lower chamber 21 of the clamping hydraulic cylinder; the positioning device 7 of the transport vehicle ensures that the transport vehicle 1 accurately stops at the preset position, and the clamping flat plate 19 of the vehicle clamping device 6 accurately clamps the wheels; after the clamping flat plate 19 of the clamping device 6 of the transport vehicle clamps the wheels of the transport vehicle 1, the traction rope 24 of the traction and load-bearing device 2 of the transport vehicle is sleeved on one side of the wheels, sharing part of the self-gravity of the transport vehicle 1.

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