A heavy load transfer vehicle

Abstract

The present application relates to the technical field of transfer trolley, in particular to a heavy load transfer trolley, which comprises a cargo platform, a wheel set and an elastic assembly; the bottom surface of the cargo platform is divided into a front wheel area, a rear wheel area and an auxiliary support area, the auxiliary support area is located between the front wheel area and the rear wheel area; the wheel set comprises a rudder wheel and an auxiliary support wheel, the rudder wheel is arranged in the front wheel area and the rear wheel area, and the auxiliary support wheel is arranged in the auxiliary support area; the elastic assembly is arranged between the rudder wheel and the cargo platform, and is used for driving the cargo platform to approach or move away from the rudder wheel; when the cargo platform is in an empty state, the distance between the cargo platform and the rudder wheel reaches a maximum value, and the auxiliary support wheel is in a suspended state; as the material quality loaded on the cargo platform continuously increases, the auxiliary support wheel gradually approaches the ground until the wheel surface of the auxiliary support wheel is in contact with the ground. The present application can realize a larger weight load and ensure the safety of transportation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transfer trolley, in particular to a heavy load transfer trolley. BACKGROUND

[0002] The heavy load transfer trolley has a large carrying capacity and can transport heavy materials, and is widely used in industrial production, logistics transportation and other fields. With the development of industrialization, the production scale is continuously expanding, and the requirement for the total amount of material transportation is also continuously increasing. However, the bearing capacity of the rudder wheel is limited, so that the traditional heavy load transfer trolley cannot meet the use demand. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a heavy load transfer trolley which can realize a larger weight load.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a heavy load transfer trolley, comprising a cargo carrying platform, a wheel set and an elastic component; the bottom surface of the cargo carrying platform is divided into a front wheel area, a rear wheel area and an auxiliary support area, the auxiliary support area is located between the front wheel area and the rear wheel area;

[0005] The wheel set comprises a rudder wheel and an auxiliary support wheel, the rudder wheel is arranged in the front wheel area and the rear wheel area, and the auxiliary support wheel is arranged in the auxiliary support area;

[0006] The elastic component is arranged between the rudder wheel and the cargo carrying platform, and is used to drive the cargo carrying platform to approach or move away from the rudder wheel;

[0007] When the cargo carrying platform is in an empty state, the distance between the cargo carrying platform and the rudder wheel reaches a maximum value, and the auxiliary support wheel is in a suspended state;

[0008] As the mass of the material loaded on the cargo carrying platform increases, the auxiliary support wheel gradually approaches the ground until the wheel surface of the auxiliary support wheel contacts the ground.

[0009] The beneficial effects of the present application are as follows: the rudder wheel is connected with the cargo carrying platform through the elastic component, and is used as the front wheel and the rear wheel of the cargo carrying platform to ensure the transportation operation of the cargo carrying platform. As the mass of the material loaded on the cargo carrying platform increases, the elastic component deforms under stress, and when the load on the cargo carrying platform reaches a specified weight, the wheel surface of the auxiliary support wheel on the cargo carrying platform contacts the ground, at this time the auxiliary support wheel can share the load with the rudder wheel to avoid overload of the rudder wheel. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the heavy load transfer trolley of the present application;

[0011] Figure 2The bottom structure schematic diagram of a heavy load transfer trolley of the present application;

[0012] Figure 3 The rudder wheel and elastic assembly assembly structure schematic diagram of a heavy load transfer trolley of the present application;

[0013] Figure 4 The Figure 3 The cross-section structure schematic diagram of a heavy load transfer trolley of the present application;

[0014] Figure 5 The auxiliary support wheel structure schematic diagram of a heavy load transfer trolley of the present application;

[0015] Label explanation:

[0016] 1, the cargo platform; 11, the control center; 12, the baffle;

[0017] 2, the wheel group; 21, the rudder wheel; 211, the first forward wheel; 212, the forward motor; 213, the first turntable bearing; 214, the first steering motor; 2141, the first steering gear; 22, the auxiliary support wheel; 221, the second forward wheel; 222, the second turntable bearing; 223, the second steering motor; 2231, the second steering gear;

[0018] 3, the elastic assembly; 31, the rudder wheel connecting disc; 311, the guide rod; 312, the through hole; 32, the platform connecting disc; 321, the wiring tube; 33, the disc spring; 34, the adjusting bolt. DETAILED DESCRIPTION

[0019] To explain the technical content, the purpose and effect of the present application in detail, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0020] Please refer to Figures 1 to 4 The heavy load transfer trolley of the present application, including the cargo platform 1, the wheel group 2 and the elastic assembly 3; the bottom surface of the cargo platform 1 is divided into the front wheel area, the rear wheel area and the auxiliary support area, the auxiliary support area is located between the front wheel area and the rear wheel area;

[0021] The wheel group 2 includes the rudder wheel 21 and the auxiliary support wheel 22, the rudder wheel 21 is arranged in the front wheel area and the rear wheel area, the auxiliary support wheel 22 is arranged in the auxiliary support area;

[0022] The elastic assembly 3 is arranged between the rudder wheel 21 and the cargo platform 1, the elastic assembly 3 is used to drive the cargo platform 1 to be close to or away from the rudder wheel 21;

[0023] When the cargo platform 1 is in the empty state, the distance between the cargo platform 1 and the rudder wheel 21 reaches the maximum value, and the auxiliary support wheel 22 is in the suspended state;

[0024] With the increasing of the material quality loaded on the loading platform 1, the auxiliary supporting wheel 22 gradually approaches the ground until the wheel surface of the auxiliary supporting wheel 22 contacts with the ground.

[0025] From the above description, the beneficial effects of the present application are that the rudder wheel 21 is connected with the loading platform 1 through the elastic assembly 3, which serves as the front wheel and the rear wheel of the loading platform 1 to ensure the transportation of the loading platform 1. With the increasing of the material quality loaded on the loading platform 1, the elastic assembly 3 is deformed under stress, and when the loading capacity of the loading platform 1 reaches the specified weight, the wheel surface of the auxiliary supporting wheel 22 on the loading platform 1 contacts with the ground, at this time, the auxiliary supporting wheel 22 can share the load with the rudder wheel 21 to avoid overloading of the rudder wheel 21.

[0026] Please refer to Figure 3 and Figure 4 , further, the elastic assembly 3 comprises a rudder wheel connecting disc 31, a platform connecting disc 32 and a disc spring 33; the rudder wheel connecting disc 31 is connected with the rudder wheel 21, a guide rod 311 is arranged on the rudder wheel connecting disc 31, a through hole 312 is arranged on the disc surface of the rudder wheel connecting disc 31, the platform connecting disc 32 is slidingly arranged on the guide rod 311, the platform connecting disc 32 is connected with the bottom surface of the loading platform 1, one end of the disc spring 33 abuts against the platform connecting disc 32, and the other end of the disc spring 33 abuts against the rudder wheel 21 through the through hole 312.

[0027] From the above description, the sliding direction of the platform connecting disc 32 is ensured by the guide rod 311. At the same time, the disc spring 33 can play a shock-absorbing role on the rudder wheel 21, so that the transportation of the loading platform 1 is more stable.

[0028] Please refer to Figure 3 and Figure 4 , further, the elastic assembly 3 further comprises an adjusting bolt 34, the adjusting bolt 34 is threadedly connected on the platform connecting disc 32, and the screw rod of the adjusting bolt 34 abuts against the disc spring 33.

[0029] From the above description, the compression degree of the disc spring 33 is controlled by the adjusting bolt 34, so as to adjust the loading threshold when the loading platform 1 drives the wheel surface of the auxiliary supporting wheel 22 to contact with the ground.

[0030] Please refer to Figure 3 and Figure 4 , further, a wiring tube 321 is arranged on the platform connecting disc 32, and the disc spring 33 is sleeved on the outer sidewall of the wiring tube 321.

[0031] From the above description, the connection line on the steering wheel 21 can be guided to the loading platform 1 in a concealed manner through the wiring pipe 321, which not only facilitates the line pipe, but also avoids damage caused by exposure of the line.

[0032] Please refer to Figure 3 and Figure 4 Further, the steering wheel 21 comprises a first forward wheel 211, a forward motor 212, a first turntable bearing 213 and a first steering motor 214; the first forward wheel 211 is in transmission connection with the output shaft of the forward motor 212, the first forward wheel 211 is connected with the inner ring of the first turntable bearing 213, the outer ring of the first turntable bearing 213 is connected with the elastic assembly 3, the outer ring side wall of the first turntable bearing 213 is a tooth surface, the first steering motor 214 is connected with the support of the first forward wheel 211, and the output shaft of the first steering motor 214 is provided with a first steering gear 2141 engaged with the outer ring side wall of the first turntable bearing 213.

[0033] From the above description, the first forward wheel 211 is driven to rotate by the forward motor 212, which can realize the forward and backward movement of the loading platform 1. By driving the first steering gear 2141 to rotate by the first steering motor 214, the first forward wheel 211 can be steered with the axis of the first turntable bearing 213 as the rotation axis, thereby realizing the steering of the loading platform 1.

[0034] Further, the first forward wheel 211 is two rollers connected by a differential, and the output shaft of the forward motor 212 is in transmission connection with the differential.

[0035] From the above description, the first forward wheel 211 is two rollers connected by a differential, which can further improve the carrying capacity of the steering wheel 21. At the same time, the use of differential can avoid rigid friction between one of the rollers and the ground when the steering wheel 21 is steering.

[0036] Please refer to Figure 5 Further, the auxiliary support wheel 22 comprises a second forward wheel 221, a second turntable bearing 222 and a second steering motor 223; the second forward wheel 221 is connected with the inner ring of the second turntable bearing 222, the outer ring of the second turntable bearing 222 is connected with the loading platform 1, the outer ring side wall of the second turntable bearing 222 is a tooth surface, the second steering motor 223 is connected with the support of the second forward wheel 221, and the output shaft of the second steering motor 223 is provided with a second steering gear 2231 engaged with the outer ring side wall of the second turntable bearing 222.

[0037] As can be known from the above description, the second steering motor 223 is used to drive the second steering gear 2231 to rotate, so that the second forward wheel 221 can steer around the axis of the second rotary bearing 222, thereby avoiding the interference between the second forward wheel 221 and the cargo platform 1 when the rudder wheel 21 drives the cargo platform 1 to steer.

[0038] As shown in Figure 1 Further, the control center 11 is arranged on the platform of the cargo platform 1, and the control center 11 is in communication connection with the wheel set 2.

[0039] As can be known from the above description, the control center 11 is arranged on the platform of the cargo platform 1, which can provide conditions for the cargo platform 1 to approach the ground.

[0040] As shown in Figure 1 Further, the cargo platform 1 is provided with a baffle plate 12 along the outer contour thereof.

[0041] As can be known from the above description, the baffle plate 12 can limit the activity space of the materials on the platform of the cargo platform 1, and further ensure the safety of transportation.

[0042] Embodiment one

[0043] A heavy load transfer vehicle, please refer to Figures 1 to 4As shown, it comprises a loading platform 1, a wheel set 2 and an elastic assembly 3; the bottom surface of the loading platform 1 is divided into a front wheel area, a rear wheel area and an auxiliary support area, the auxiliary support area being located between the front wheel area and the rear wheel area; the wheel set 2 comprises a rudder wheel 21 and an auxiliary support wheel 22, the rudder wheel 21 being arranged in the front wheel area and the rear wheel area, and the auxiliary support wheel 22 being arranged in the auxiliary support area; the elastic assembly 3 is arranged between the rudder wheel 21 and the loading platform 1, and is used to drive the loading platform 1 to approach or move away from the rudder wheel 21; when the loading platform 1 is in an empty state, the distance between the loading platform 1 and the rudder wheel 21 reaches a maximum value, and the auxiliary support wheel 22 is in a suspended state; as the material quality loaded on the loading platform 1 continuously increases, the auxiliary support wheel 22 gradually approaches the ground until the wheel surface of the auxiliary support wheel 22 is in contact with the ground. The elastic assembly 3 comprises a rudder wheel connecting disc 31, a platform connecting disc 32, a disc spring 33 and an adjusting bolt 34; the rudder wheel connecting disc 31 is connected with the rudder wheel 21, a guide rod 311 is arranged on the rudder wheel connecting disc 31, a through hole 312 is arranged on the disc surface of the rudder wheel connecting disc 31, the platform connecting disc 32 is slidingly arranged on the guide rod 311, the platform connecting disc 32 is connected with the bottom surface of the loading platform 1, one end of the disc spring 33 abuts against the platform connecting disc 32, and the other end of the disc spring 33 passes through the through hole 312 and abuts against the rudder wheel 21. The adjusting bolt 34 is threadedly connected on the platform connecting disc 32, and the screw rod of the adjusting bolt 34 abuts against the disc spring 33. A wiring tube 321 is arranged on the platform connecting disc 32, and the disc spring 33 is sleeved on the outer sidewall of the wiring tube 321.

[0044] Working principle: the rudder wheel 21 is connected with the loading platform 1 through the elastic assembly 3, and is used to act as the front wheel and the rear wheel of the loading platform 1 to ensure the transportation operation of the loading platform 1. As the material quality loaded on the loading platform 1 continuously increases, the elastic assembly 3 is deformed under stress, and when the load on the loading platform 1 reaches a specified weight, the wheel surface of the auxiliary support wheel 22 on the loading platform 1 is in contact with the ground, at which time the auxiliary support wheel 22 can share the load with the rudder wheel 21 to avoid overloading of the rudder wheel 21.

[0045] Embodiment two

[0046] This embodiment further limits the structure of the rudder wheel 21 on the basis of embodiment one, and specifically as follows:

[0047] Please refer to Figure 3 and Figure 4As shown in the figure, the steering wheel 21 comprises a first forward wheel 211, a forward motor 212, a first rotary bearing 213 and a first steering motor 214; the first forward wheel 211 is in transmission connection with the output shaft of the forward motor 212, the first forward wheel 211 is connected with the inner ring of the first rotary bearing 213, the outer ring of the first rotary bearing 213 is connected with the elastic assembly 3, the outer ring side wall of the first rotary bearing 213 is a tooth surface, the first steering motor 214 is connected with the support of the first forward wheel 211, and the output shaft of the first steering motor 214 is provided with a first steering gear 2141 engaged with the outer ring side wall of the first rotary bearing 213.

[0048] Embodiment three

[0049] This embodiment further limits the structure of the auxiliary support wheel 22 on the basis of embodiment one, and specifically as follows:

[0050] Please refer to Figure 5 As shown in the figure, the auxiliary support wheel 22 comprises a second forward wheel 221, a second rotary bearing 222 and a second steering motor 223; the second forward wheel 221 is connected with the inner ring of the second rotary bearing 222, the outer ring of the second rotary bearing 222 is connected with the loading platform 1, the outer ring side wall of the second rotary bearing 222 is a tooth surface, the second steering motor 223 is connected with the support of the second forward wheel 221, and the output shaft of the second steering motor 223 is provided with a second steering gear 2231 engaged with the outer ring side wall of the second rotary bearing 222.

[0051] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the specification and drawings of the present application is also included in the patent protection range of the present application.

Claims

1. A heavy load transfer cart characterized by: The utility model provides a kind of flexible loading platform, including loading platform, wheel group and elastic component;The bottom surface of the loading platform is divided into front wheel area, rear wheel area and auxiliary support area, and the auxiliary support area is located between the front wheel area and the rear wheel area; The wheel group includes rudder wheel and auxiliary support wheel, and the rudder wheel is arranged in the front wheel area and the rear wheel area, and the auxiliary support wheel is arranged in the auxiliary support area; The elastic component is arranged between the rudder wheel and the loading platform, and the elastic component is used to drive the loading platform to be close to or away from the rudder wheel; When the loading platform is in an empty state, the distance between the loading platform and the rudder wheel reaches a maximum value, and the auxiliary support wheel is in a suspended state; As the quality of the material loaded on the loading platform increases, the auxiliary support wheel gradually approaches the ground until the wheel surface of the auxiliary support wheel is in contact with the ground. The elastic component includes a rudder wheel connecting disc, a platform connecting disc and a disc spring, the rudder wheel connecting disc is connected with the rudder wheel, a guide rod is arranged on the rudder wheel connecting disc, a through hole is arranged on the disc surface of the rudder wheel connecting disc, the platform connecting disc is slidably arranged on the guide rod, the platform connecting disc is connected with the bottom surface of the loading platform, one end of the disc spring abuts against the platform connecting disc, and the other end of the disc spring passes through the through hole and abuts against the rudder wheel. The elastic component further includes an adjusting bolt, the adjusting bolt is threadedly connected to the platform connecting disc, and the screw rod of the adjusting bolt abuts against the disc spring.

2. The heavy load transfer vehicle of claim 1, wherein: A wiring tube is arranged on the platform connecting disc, and the disc spring is sleeved on the outer sidewall of the wiring tube.

3. The heavy load transfer vehicle of claim 1, wherein: The rudder wheel includes a first forward wheel, a forward motor, a first rotary disc bearing and a first steering motor, the first forward wheel is in transmission connection with the output shaft of the forward motor, the first forward wheel is connected with the inner ring of the first rotary disc bearing, the outer ring of the first rotary disc bearing is connected with the elastic component, the outer ring sidewall of the first rotary disc bearing is a tooth surface, the first steering motor is connected with the support of the first forward wheel, and a first steering gear is arranged on the output shaft of the first steering motor and engages with the outer ring sidewall of the first rotary disc bearing.

4. The heavy load transfer vehicle of claim 3, wherein: The first forward wheel is two rollers connected by a differential, and the output shaft of the forward motor is in transmission connection with the differential.

5. The heavy load transfer vehicle of claim 1, wherein: The auxiliary support wheel includes a second forward wheel, a second rotary disc bearing and a second steering motor, the second forward wheel is connected with the inner ring of the second rotary disc bearing, the outer ring of the second rotary disc bearing is connected with the loading platform, the outer ring sidewall of the second rotary disc bearing is a tooth surface, the second steering motor is connected with the support of the second forward wheel, and a second steering gear is arranged on the output shaft of the second steering motor and engages with the outer ring sidewall of the second rotary disc bearing.

6. The heavy load transfer vehicle of claim 1, wherein: A control center is arranged on the table surface of the loading platform, and the control center is in communication connection with the wheel group.

7. The heavy load transfer vehicle of claim 1, wherein: The loading platform is provided with a baffle along its outer contour.

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