A special conveying and lifting equipment for wheeled tooling vehicles

Abstract

A conveying and lifting device dedicated to a wheeled work vehicle belongs to the technical field of conveying and lifting equipment. The present invention comprises a lifting mechanism, a limit frame arranged on one side of the lifting mechanism, and a conveying vehicle arranged in the lifting mechanism and the limit frame; a conveying vehicle driving mechanism is arranged at one end of the lifting mechanism connected to the limit frame to drive the conveying vehicle to move back and forth between the lifting mechanism and the limit frame, and a conveying mechanism is arranged on the conveying vehicle. The present invention can directly lift and convey a large wheeled work vehicle as a whole, thereby greatly improving the efficiency of cargo transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying and lifting equipment, and in particular to a conveying and lifting equipment specially used for a wheeled tooling vehicle. Background Art

[0002] At present, the transfer of goods between platforms at different heights is generally achieved by using a pallet lifting and conveying mechanism. For example, a Chinese utility model application with application number 201621397118.3 discloses a pallet lifting and conveying mechanism, including a first conveyor line and a second conveyor line, the second conveyor line being higher than the first conveyor line, and characterized in that a lifting mechanism is arranged between the first conveyor line and the second conveyor line, the lifting mechanism comprising an inverted U-shaped bracket, linear guide rails are respectively installed on the two vertical rods of the inverted U-shaped bracket, a lifting roller frame is installed on the linear guide rail through a slider, a plurality of conveying rollers are installed on the lifting roller frame, and limited stop bars are installed on both sides of the conveying roller, a longitudinal driving cylinder is installed between the two vertical rods of the inverted U-shaped bracket, the piston rod of the longitudinal driving cylinder is connected to a support block, support sprockets are respectively installed at both ends of the support block, a support chain is arranged on the support sprocket, one end of the support chain is fixedly connected to the lifting roller frame, and the other end of the support chain is fixedly connected to the bottom fixing seat on the inverted U-shaped bracket.

[0003] When using the pallet lifting and conveying mechanism as described above, the goods need to be placed on the pallet first, transported to the target platform, and then removed from the pallet, which is time-consuming and labor-intensive, and the overall goods conveying efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a special conveying and lifting equipment for a wheeled work vehicle, which can directly lift and convey a large wheeled work vehicle as a whole, thereby greatly improving the cargo transportation efficiency.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A special conveying and lifting equipment for a wheeled work vehicle comprises a lifting mechanism, a limit frame arranged on one side of the lifting mechanism, and a conveying vehicle arranged in the lifting mechanism and the limit frame; one end of the lifting mechanism connected to the limit frame is provided with a conveying vehicle driving mechanism for driving the conveying vehicle to move back and forth between the lifting mechanism and the limit frame, and the conveying vehicle is provided with a conveying mechanism.

[0007] The working principle of the present invention: Take the transfer of a wheeled tooling vehicle to a high platform as an example: first move the conveyor vehicle into the limit frame, then push the wheeled tooling vehicle into the lifting mechanism, after the lifting mechanism lifts the wheeled tooling vehicle to a certain height, move the conveyor vehicle into the lifting mechanism, at this time the conveyor vehicle is just under the wheeled tooling vehicle, then let the lifting mechanism gradually lower the wheeled tooling vehicle onto the conveyor vehicle, then the conveyor vehicle moves into the limit frame again, at this time the upper side loading surface of the conveyor vehicle docks with the high platform, and finally the conveying mechanism on the conveyor vehicle outputs the wheeled tooling vehicle from the conveyor vehicle to the high platform. Conversely, the wheeled tooling vehicle can also be transferred from the high platform to the low platform, and the specific process will not be repeated.

[0008] As a preferred embodiment of the present invention, the conveyor vehicle driving mechanism includes a mounting frame, a first motor disposed at the lower part of the mounting frame, a driving sprocket disposed at the output end of the first motor, two guide sprockets disposed at the upper end of the mounting frame, and a chain; the chain passes around from below the driving sprocket, and its two ends pass around the two guide sprockets from the middle of the two guide sprockets and are respectively connected to the two ends of the conveyor vehicle. The conveyor vehicle driving mechanism mainly drives the driving sprocket to rotate by the first motor, and the driving sprocket pulls the conveyor vehicle back and forth by driving the chain. The setting of the guide sprocket ensures the horizontality of the chain on the one hand, thereby improving the smoothness and stability of pulling the conveyor vehicle; on the other hand, it strengthens the matching relationship between the chain and the driving sprocket, thereby ensuring the stability of the transmission.

[0009] As a preferred embodiment of the present invention, both sides of the mounting frame along the moving direction of the transport vehicle are provided with limit buffers, and both ends of the transport vehicle are provided with limit plates. Due to the need to set up a drive mechanism for the transport vehicle, the mounting frame is located between the front and rear rollers of the transport vehicle, that is, the transport vehicle is across both sides of the mounting frame. In order to avoid collision between the transport vehicle and the mounting frame or even other drive mechanisms, the matching structure of the limit buffer and the limit plate is provided.

[0010] As a preferred embodiment of the present invention, the transport vehicle includes a main frame, a plurality of rollers arranged below the two ends of the main frame, guide wheels arranged on the sides of the two ends of the main frame to cooperate with the inner sides of the limit frame and the lifting mechanism, a transport mechanism mounting frame arranged in the middle of the upper part of the main frame, and a tool vehicle guide frame arranged on both sides of the upper part of the main frame, and the tool vehicle guide frame is provided with a lifting mechanism avoidance opening. The transport vehicle ensures the accuracy of the moving route and position through the guide wheels on both sides, while avoiding large friction resistance with the limit frame or the lifting mechanism; the tool vehicle guide frame is used to improve the smoothness of the tool vehicle entering and exiting the transport vehicle, and at the same time, the position stability of the tool vehicle on the transport vehicle can be ensured. Specifically, the tool vehicle guide frame is divided into multiple unit guide frames by the avoidance opening, and each unit guide frame is provided with an outward-turned introduction slope on all sides.

[0011] As a preferred embodiment of the present invention, a tool vehicle caster guide groove is provided above the main body bracket between the conveying mechanism mounting frame and the tool vehicle guide frame away from the lifting mechanism. The tool vehicle caster guide groove is specifically composed of relatively arranged plates or rods, and both ends are bent outward to form a larger introduction port to ensure the applicability of the universal wheel, that is, the direction of the universal wheel is the same as the direction of the tool vehicle when it is sent out from the conveying vehicle, thereby ensuring the smoothness of the tool vehicle when it is transported to the high platform.

[0012] As a preferred embodiment of the present invention, the conveying mechanism includes two conveying chains arranged at intervals, a second motor arranged between the two conveying chains, a transmission shaft connected to the output end of the second motor, and two transmission sprockets arranged at both ends of the transmission shaft; the two transmission sprockets are respectively connected to the two conveying chains. The conveying mechanism supports and conveys the tooling vehicle through the two conveying chains to ensure the pressure and friction between the conveying chain and the tooling vehicle, and ensure the stability of the conveying; at the same time, the rollers of the tooling vehicle are suspended in the air and will not be stuck in the gap on the main support of the conveying vehicle.

[0013] As a preferred embodiment of the present invention, the lifting mechanism includes two supporting frames arranged opposite to each other, a lifting frame connected to the supporting frame by sliding up and down, lifting sprockets arranged at the four corners of the supporting frame, a lifting chain arranged between the upper and lower lifting sprockets and connected to the lifting frame, a lifting shaft arranged between the two lifting sprockets at the same height, and a third motor connected to the lifting shaft by transmission; telescopic loading arm assemblies are arranged on opposite sides of the two lifting frames. The lifting mechanism realizes the lifting and lowering of the lifting frame through the lifting chain, and the telescopic loading arm assembly can avoid interference with the tooling vehicle when entering the lifting mechanism, and extend to the bottom of the tooling vehicle after the tooling vehicle is in place to carry the tooling vehicle for lifting and lowering.

[0014] As a preferred embodiment of the present invention, the telescopic cargo arm assembly includes two rotating shafts vertically mounted on the sides of the lifting frame through bearings, a cargo arm disposed on the rotating shafts, and a fourth motor that is simultaneously connected to the two rotating shafts through a sprocket chain assembly. The telescopic cargo arm assembly is driven by a motor to synchronously drive the two cargo arms to rotate and achieve telescoping, so as to ensure the stability of the lifting of the load-carrying vehicle through a total of four cargo arms on the two lifting frames.

[0015] As a preferred embodiment of the present invention, at least one of the rotating shafts is fixedly connected to a limiting arm, an arc-shaped limiting groove is provided on the upper side of the lifting frame, and a limiting member extending into the arc-shaped limiting groove is provided on the limiting arm. The limiting structure is used to ensure that the cargo arm is rotated out to the correct position, and prevent the cargo arm from rotating too far and being unable to carry the tooling vehicle. At the same time, the arc-shaped limiting groove is provided on the upper side of the lifting frame, which makes it easier for the staff to observe and obtain the position of the cargo arm, thereby effectively improving the safety of the equipment.

[0016] As a preferred embodiment of the present invention, at least two guide posts are provided on opposite sides of the two lifting frames, and a conical head is provided on the upper end of the guide post, and a bearing is provided on the guide post. The guide post improves the smoothness and position accuracy of the tooling vehicle when entering and exiting the lifting mechanism through the arc side surface and rotatability of the bearing; and the conical head at the upper end is used to smoothly guide the position of the tooling vehicle when it descends.

[0017] The advantages of the present invention are:

[0018] 1. It can directly lift and transport large wheeled work vehicles as a whole, thereby greatly improving the efficiency of cargo transportation;

[0019] 2. The conveyor driving mechanism ensures the horizontality of the chain through the setting of the guide sprocket, thereby improving the smoothness and stability of pulling the conveyor; on the other hand, it strengthens the matching relationship between the chain and the driving sprocket, thereby ensuring the stability of the transmission;

[0020] 3. The conveyor is equipped with caster guide grooves to ensure the applicability of the universal wheel, so as to ensure the smoothness of the conveyor when the conveyor is transported from the conveyor to the high platform;

[0021] 4. The telescopic cargo mechanism effectively ensures the accuracy of the cargo arm's rotation position by setting the matching structure of the limit arm and the arc-shaped limit groove, thereby improving the safety of the equipment;

[0022] 5. The lifting frame is equipped with guide columns to effectively ensure the position accuracy and smoothness of the tooling vehicle when it moves up and down and in and out of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a special conveying and lifting device for a wheeled tooling vehicle of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the driving mechanism of the conveyor vehicle in the present invention:

[0025] Figure 3 It is a structural schematic diagram of the transport vehicle in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the lifting mechanism in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the lifting frame in the present invention;

[0028] In the figure: 1-lifting mechanism; 2-limiting frame; 3-transport vehicle; 4-transport vehicle driving mechanism; 5-transport mechanism; 41-mounting frame; 42-first motor; 43-driving sprocket; 44-guide sprocket; 45-chain; 461-limiting buffer; 462-limiting plate; 31-main frame; 32-roller; 33-guide wheel; 34-transport mechanism mounting frame; 351-unit guide frame; 3511-introduction slope; 36-avoidance; 37-guide wheel mounting frame Mounting rack; 38-guide groove; 51-conveying chain; 52-second motor; 53-drive shaft; 11-support frame; 12-lifting frame; 13-lifting sprocket; 14-lifting chain; 15-lifting shaft; 16-third motor; 171-guide pulley; 172-guide rod; 181-rotating shaft; 182-cargo arm; 183-fourth motor; 1821-cargo board; 184-limiting arm; 185-arc-shaped limiting groove; 19 guide column; 191-conical head. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1-5 As shown, a special conveying and lifting equipment for a wheeled work vehicle includes a lifting mechanism 1, a limit frame 2 arranged on one side of the lifting mechanism, and a conveying vehicle 3 arranged in the lifting mechanism 1 and the limit frame 2; one end of the lifting mechanism 1 connected to the limit frame 2 is provided with a conveying vehicle driving mechanism 4 for driving the conveying vehicle 3 to move back and forth in the lifting mechanism 1 and the limit frame 2, and the conveying vehicle 3 is provided with a conveying mechanism 5.

[0031] The working principle of the present invention: Take the transfer of a wheeled tooling vehicle to a high platform as an example: first move the conveyor vehicle into the limit frame, then push the wheeled tooling vehicle into the lifting mechanism, after the lifting mechanism lifts the wheeled tooling vehicle to a certain height, move the conveyor vehicle into the lifting mechanism, at this time the conveyor vehicle is just under the wheeled tooling vehicle, then let the lifting mechanism gradually lower the wheeled tooling vehicle onto the conveyor vehicle, then the conveyor vehicle moves into the limit frame again, at this time the upper side loading surface of the conveyor vehicle docks with the high platform, and finally the conveying mechanism on the conveyor vehicle outputs the wheeled tooling vehicle from the conveyor vehicle to the high platform. Conversely, the wheeled tooling vehicle can also be transferred from the high platform to the low platform, and the specific process will not be repeated.

[0032] Specifically, the conveyor vehicle driving mechanism 4 includes a mounting frame 41 connected to the lifting mechanism, a first motor 42 arranged at the bottom of the mounting frame 41, a driving sprocket 43 arranged at the output end of the first motor 42, two guide sprockets 44 arranged at the top of the mounting frame 41, and a chain 45, wherein the distance between the two guide sprockets 44 is smaller than the diameter of the driving sprocket 43; the chain 45 bypasses from below the driving sprocket 43, and its two ends bypass the two guide sprockets 44 from the middle of the two guide sprockets 44 and are respectively connected to the two ends in the moving direction of the conveyor vehicle 3. The conveyor vehicle driving mechanism mainly drives the driving sprocket to rotate by the first motor, and the driving sprocket drives the conveyor vehicle to move back and forth by driving the chain. The setting of the guide sprocket ensures the horizontality of the chain on the one hand, thereby improving the smoothness and stability of pulling the conveyor vehicle; on the other hand, it strengthens the matching relationship between the chain and the driving sprocket, thereby ensuring the stability of the transmission.

[0033] In addition, both sides of the mounting frame 41 along the moving direction of the transport vehicle are provided with limit buffers 461, and both ends of the transport vehicle 3 are provided with limit plates 462. Due to the need to set up the drive mechanism of the transport vehicle, the mounting frame is located between the front and rear rollers of the transport vehicle, that is, the transport vehicle is across the two sides of the mounting frame. In order to avoid collision between the transport vehicle and the mounting frame or even other drive mechanisms, the matching structure of the limit buffer and the limit plate is set.

[0034] The transport vehicle 3 includes a main frame 31, four rollers 32 arranged at the four corners below the main frame 31, guide wheels 33 arranged at the sides of the two ends of the main frame 31 to cooperate with the limit frame 2 and the inner side of the lifting mechanism, a conveying mechanism mounting frame 34 arranged in the middle of the upper part of the main frame 31, and a tool vehicle guide frame arranged on both sides above the main frame 31, and a lifting mechanism avoidance opening 36 is provided on the tool vehicle guide frame. Among them, a guide wheel mounting frame 37 is provided on the side of the roller 32 of the main frame 31 close to the limit frame, and the guide wheel 33 is horizontally arranged on the guide wheel mounting frame 37, that is, the guide wheel and the roller are both at the end of the main frame to ensure the maximum movement range of the transport vehicle. The transport vehicle ensures the accuracy of the moving route and position through the guide wheels on both sides, while avoiding large friction resistance with the limit frame or the lifting mechanism; the tool vehicle guide frame is used to improve the smoothness of the tool vehicle when entering and exiting the transport vehicle, and at the same time, the position stability of the tool vehicle on the transport vehicle can be ensured. Specifically, the number of the avoidance openings is set according to the number of the cargo arms of the lifting mechanism, and the tooling vehicle guide frame is divided into a plurality of unit guide frames 351 through the avoidance openings 36 , and each unit guide frame 351 is provided with outward-turned introduction slopes 3511 on all sides.

[0035] Furthermore, a tool vehicle caster guide groove 38 is provided above the main body bracket 31, between the conveying mechanism mounting frame 34 and the tool vehicle guide frame, away from the lifting mechanism 1. The tool vehicle caster guide groove is specifically composed of relatively arranged plates or rods, and both ends are bent outward to form a larger introduction port to ensure the applicability of the universal wheel, that is, the direction of the universal wheel is the same as the direction of the tool vehicle when it is sent out from the conveying vehicle, thereby ensuring the smoothness of the tool vehicle when it is transported to the high platform.

[0036] The conveying mechanism 5 includes two conveying chains 51 arranged at intervals, a second motor 52 arranged between the two conveying chains 51, a transmission shaft 53 connected to the output end of the second motor 52, two transmission sprockets arranged at both ends of the transmission shaft 53, and a conveying guide sprocket arranged above the transmission sprocket; the two transmission sprockets are respectively connected to the two conveying chains 51. The conveying mechanism supports and conveys the tooling vehicle through the two conveying chains to ensure the pressure and friction between the conveying chain and the tooling vehicle, and ensure the stability of the conveying; at the same time, the rollers of the tooling vehicle are suspended and will not be stuck in the gap on the main support of the conveying vehicle.

[0037] The lifting mechanism 1 includes two supporting frames 11 arranged opposite to each other, a lifting frame 12 slidably connected to the supporting frame 11, lifting sprockets 13 arranged at the four corners of the supporting frame 11, a lifting chain 14 arranged between the upper and lower lifting sprockets 13 and connected to the lifting frame 12, a lifting shaft 15 arranged between the two lifting sprockets 13 at the same height, and a third motor 16 connected to the lifting shaft 15; telescopic loading arm assemblies are arranged on opposite sides of the two lifting frames 12. Among them, guide pulleys 171 are arranged on both sides of the lifting frame 12, and guide rods 172 matching the grooves of the guide pulleys 171 are arranged on both sides of the supporting frame 11. The lifting mechanism realizes the lifting and lowering of the lifting frame through the lifting chain, and the telescopic loading arm assembly can avoid interference with the tooling vehicle when it enters the lifting mechanism, and extend to the bottom of the tooling vehicle after the tooling vehicle is in place to carry the tooling vehicle for lifting and lowering. Specifically, the telescopic cargo arm assembly includes two rotating shafts 181 vertically mounted on the side of the lifting frame 12 through bearings, a cargo arm 182 provided on the rotating shaft 181, and a fourth motor 183 that is simultaneously connected to the two rotating shafts 181 through a sprocket chain assembly, wherein a cargo plate 1821 for increasing the supporting area is provided at the end of the cargo arm 182. The telescopic cargo arm assembly is telescopically driven by a motor to synchronously drive the two cargo arms to rotate, so as to ensure the stability of the lifting of the loading vehicle through a total of four cargo arms on the two lifting frames.

[0038] Among them, a limit arm 184 is fixedly connected to one of the rotating shafts 181, an arc-shaped limit groove 185 is provided on the upper side of the lifting frame 12, and a limit roller is provided on the limit arm 184 to extend into the arc-shaped limit groove 185. The limit structure is used to ensure that the cargo arm is rotated out to the right position to prevent the cargo arm from rotating too far and being unable to carry the tooling vehicle. At the same time, the arc-shaped limit groove is set on the upper side of the lifting frame, which makes it easier for the staff to observe and obtain the position of the cargo arm, thereby effectively improving the safety of the equipment.

[0039] In addition, two guide posts 19 are provided on opposite sides of the two lifting frames 12, and a conical head 191 is provided on the upper end of the guide post 19, and a bearing (not shown in the figure) is provided on the guide post 19. The guide post improves the smoothness and position accuracy of the tooling vehicle when entering and exiting the lifting mechanism through the arc side surface and rotatability of the bearing; and the conical head at the upper end is used to smoothly guide the position of the tooling vehicle when it descends.

[0040] The above is only a preferred specific embodiment of the present invention, which is an implementation method based on the overall concept of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A conveying and lifting device for a wheeled tooling vehicle, characterized in that: It includes a lifting mechanism, a limit frame arranged on one side of the lifting mechanism, and a conveying vehicle arranged in the lifting mechanism and the limit frame; a conveying vehicle driving mechanism for driving the conveying vehicle to move back and forth between the lifting mechanism and the limit frame is arranged at one end of the lifting mechanism connected to the limit frame, and the conveying vehicle is provided with a conveying mechanism; The conveyor vehicle driving mechanism includes a mounting frame, a first motor disposed at the lower part of the mounting frame, a driving sprocket disposed at the output end of the first motor, two guide sprockets disposed at the upper end of the mounting frame, and a chain; the chain passes around the bottom of the driving sprocket, and the two ends of the chain pass around the two guide sprockets from the middle of the two guide sprockets and are respectively connected to the two ends of the conveyor vehicle; The transport vehicle includes a main frame, a plurality of rollers arranged below the two ends of the main frame, guide wheels arranged on the sides of the two ends of the main frame to cooperate with the limit frame and the inner side of the lifting mechanism, a transport mechanism mounting frame arranged in the middle above the main frame, and a tooling vehicle guide frame arranged on both sides above the main frame, wherein the tooling vehicle guide frame is provided with a lifting mechanism avoidance opening.

2. A conveying and lifting device for a wheeled tooling vehicle according to claim 1, characterized in that: The mounting frame is provided with limit buffers on both sides along the moving direction of the conveying vehicle, and both ends of the conveying vehicle are provided with limit plates.

3. The conveying and lifting equipment for a wheeled tooling vehicle according to claim 1, characterized in that: A tool vehicle caster guide groove is provided above the main body bracket between the conveying mechanism mounting frame and the tool vehicle guide frame away from the lifting mechanism.

4. The conveying and lifting equipment for a wheeled tooling vehicle according to claim 1, characterized in that: The conveying mechanism includes two conveying chains arranged at intervals, a second motor arranged between the two conveying chains, a transmission shaft connected to the output end of the second motor, and two transmission sprockets arranged at both ends of the transmission shaft; the two transmission sprockets are respectively connected to the two conveying chains.

5. The conveying and lifting equipment for a wheeled tooling vehicle according to claim 1, characterized in that: The lifting mechanism includes two supporting frames arranged opposite to each other, a lifting frame connected to the supporting frames by sliding up and down, lifting sprockets arranged at the four corners of the supporting frames, a lifting chain arranged between the upper and lower lifting sprockets and connected to the lifting frame, a lifting shaft arranged between the two lifting sprockets at the same height, and a third motor connected to the lifting shaft by transmission; telescopic cargo arm assemblies are provided on opposite sides of the two lifting frames.

6. A conveying and lifting device for a wheeled tooling vehicle according to claim 5, characterized in that: The telescopic cargo arm assembly includes two rotating shafts vertically installed on the sides of the lifting frame through bearings, a cargo arm arranged on the rotating shafts, and a fourth motor that is simultaneously connected to the two rotating shafts through a sprocket chain assembly.

7. A conveying and lifting device for a wheeled tooling vehicle according to claim 6, characterized in that: A limiting arm is fixedly connected to at least one of the rotating shafts, an arc-shaped limiting groove is arranged on the upper side of the lifting frame, and a limiting piece extending into the arc-shaped limiting groove is arranged on the limiting arm.

8. The conveying and lifting equipment for a wheeled tooling vehicle according to claim 6, characterized in that: At least two guide columns are arranged on opposite sides of the two lifting frames, a conical head is arranged on the upper end of the guide column, and a bearing is arranged on the guide column.

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