Damping driving structure suitable for chassis of manned AGV (Automatic Guided Vehicle)

Abstract

The embodiment of the utility model provides a chassis damping driving structure suitable for a manned AGV (Automatic Guided Vehicle), which comprises a structural frame, a damping device and a driving device, the damper bottom plate is connected with the structural frame through an elastic assembly, and a motor is arranged at the upper end of the damper bottom plate; rotating shafts of the motors are connected with driving wheels. According to the structural design, multiple factors such as bearing, damping and motor layout are comprehensively considered, various problems existing in an existing AGV chassis structure are effectively solved, the overall performance of a manned AGV is improved, the manned AGV is more suitable for running under various complex working conditions, and higher practical value and market competitiveness are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to AGV trolley technical field especially is applicable to the shock absorption driving structure of human AGV trolley chassis. BACKGROUND

[0002] As a key equipment in the field of modern logistics and industrial automation, the automatic guided vehicle (AGV) is increasingly widely applied. The AGV trolley can automatically travel according to a preset path, realize object carrying, assembly, warehousing and other tasks, greatly improve production efficiency, reduce labor cost, and improve the safety of the working environment. With the expansion of application scenarios, the load capacity demand of the AGV trolley is also increasing, from carrying light parts to carrying heavy equipment, and even carrying people and other application scenarios. The chassis driving structure of the AGV trolley is one of the core components that determines its running performance. The chassis driving structure directly affects the key performance indicators such as the moving speed, acceleration, steering flexibility, load capacity, positioning accuracy and energy efficiency of the AGV trolley.

[0003] The existing AGV chassis structure has the disadvantages of poor shock resistance and weak load capacity. In the floating type driving chassis for AGV driving designed in application No. 201720728632.9, a shock absorbing mechanism is designed, but there is still the problem of weak load capacity and poor shock absorbing effect. In the AGV trolley chassis driving structure disclosed in application No. 202021115045.0, the shock absorber is fixed on the cross beam frame, and the motor is placed in the air. This structure can effectively absorb shock, but the motor is designed to be placed in the air, which has the problems of short service life and limited use space. Therefore, the utility model provides a shock absorption driving structure for the chassis of a human AGV trolley to at least partially solve the problems in the prior art. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model embodiment is proposed to provide a shock absorption driving structure for the chassis of a human AGV trolley to overcome the above problems or at least partially solve the above problems. The structure is simple and compact, has strong load capacity and good shock resistance, and is suitable for medium and large human AGV trolleys.

[0005] To solve the above problems, the utility model embodiment discloses a shock absorption driving structure for the chassis of a human AGV trolley, comprising:

[0006] A structure frame is provided with a roller at the lower end edge position;

[0007] A shock absorber bottom plate is connected to the structure frame by an elastic component, and a motor is arranged at the upper end of the shock absorber bottom plate;

[0008] The rotating shaft of the motor is connected with a driving wheel.

[0009] Optionally, the shock absorber bottom plate is arranged in an even number and symmetrically distributed at the lower end of the structural frame, and each shock absorber bottom plate is correspondingly provided with a motor and a driving wheel.

[0010] Optionally, the motor is a servo motor.

[0011] Optionally, the bottom plate is further provided.

[0012] The bottom plate is arranged at the bottom of the structural frame.

[0013] The shock absorber bottom plate is connected to the bottom plate through a spring fixing frame and a spring.

[0014] Optionally, the motor is fixedly connected to the shock absorber bottom plate through a motor fixing frame and a screw.

[0015] Optionally, the fixed wheel sleeve is further provided.

[0016] The fixed wheel sleeve is fixedly connected to the lower end of the shock absorber bottom plate.

[0017] The driving wheel is connected to the rotating shaft of the motor through the fixed wheel sleeve.

[0018] Optionally, the roller is a universal wheel.

[0019] The embodiment of the utility model has the following advantages:

[0020] The lower end edge position of the structural frame is provided with a roller, the shock absorber bottom plate is connected to the structural frame through an elastic component, the upper end of the shock absorber bottom plate is provided with a motor, and the rotating shaft of the motor is connected with a driving wheel. The structure design comprehensively considers various factors such as bearing, shock absorption and motor layout, effectively solves various problems existing in the existing AGV chassis structure, improves the overall performance of the manned AGV trolley, makes it more suitable for running under various complex working conditions, and has higher practical value and market competitiveness. DRAWINGS

[0021] Fig. 1 It is a bottom structure schematic view of a shock absorption driving structure suitable for a manned AGV trolley chassis provided by an embodiment of the utility model.

[0022] Fig. 2 It is a front view structure schematic view of a shock absorption driving structure suitable for a manned AGV trolley chassis provided by an embodiment of the utility model.

[0023] Fig. 3 It is a side view structure schematic view of a shock absorption driving structure suitable for a manned AGV trolley chassis provided by an embodiment of the utility model.

[0024] Fig. 4The utility model discloses a kind of three-dimensional perspective structure schematic diagram of shock-absorbing driving structure suitable for manned AGV dolly chassis of the embodiment of the utility model provides.

[0025] The drawings are described as follows:

[0026] 101, roller; 102, bottom plate; 103, structure frame; 104, shock absorber bottom plate; 105, motor; 106, fixing screw; 107, spring; 108, motor fixing frame; 109, spring fixing frame; 110, driving wheel; 111, fixed wheel cover. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in combination with drawings and specific embodiments.

[0028] The core idea of the present application is a new type of AGV dolly chassis shock-absorbing structure with simple and compact structure, strong carrying capacity and good anti-seismic performance, which is suitable for medium and large-sized manned AGV dolly to improve the running stability, riding comfort and service life of the AGV dolly.

[0029] Referring to Figs. 1 to 4 As shown in the figure, a shock-absorbing driving structure suitable for manned AGV dolly chassis of the utility model is shown, which comprises: a structure frame 103, a roller 101 is arranged at the lower end edge position of the structure frame 103; a shock absorber bottom plate 104 is connected with the structure frame 103 through an elastic assembly, and a motor 105 is arranged at the upper end of the shock absorber bottom plate 104; the rotating shaft of the motor is connected with a driving wheel 110.

[0030] In the present application, by adopting an independent structure frame 103 design, a roller 101 is arranged at the lower end edge, which can better disperse and carry the overall weight of the manned AGV dolly, compared with some existing AGV chassis structures, effectively solves the problem of weak carrying capacity, and ensures the stability and reliability of the dolly during manned operation. The shock absorber bottom plate 104 and the structure frame 103 are connected through an elastic assembly to form a more optimized shock-absorbing system. Compared with the floating type driving chassis of the prior art, the structure of the present application can more effectively buffer the vibration during operation, provide a more comfortable experience for the passengers, and also reduce the impact on the equipment parts, prolong the service life of the equipment. And the motor is arranged on the shock absorber bottom plate, avoiding the condition that the motor is suspended in the prior art. Not only prolongs the service life of the motor, but also makes the installation and maintenance of the motor more convenient, and also expands the use space inside the dolly, improves the space utilization. The present application effectively solves various problems existing in the prior art AGV chassis structure, improves the overall performance of the manned AGV dolly, and makes it more suitable for operation under various complex working conditions.

[0031] It should be noted that the AGV (Automated Guided Vehicle) trolley is an automatic guided vehicle, which is a kind of transportation equipment capable of automatic driving along the preset path.

[0032] In an embodiment of the present application, the shock absorber bottom plate 104 is provided as an even number, and is symmetrically distributed at the lower end of the structure frame 103, and each shock absorber bottom plate 104 is provided with a motor 105 and a driving wheel 110. In the present application, the shock absorber bottom plate 104 is preferably provided as two, and the motor 105 is a servo motor, which is used to provide more accurate motion control.

[0033] As an example, the above-mentioned shock-absorbing driving structure suitable for the chassis of manned AGV trolley is used in the power part, and two servo motors are used as power sources. The servo motor is connected through the motor fixing frame 108, and the motor fixing frame 108 is fixed on the shock absorber bottom plate 104 by using the fixing screw 106. This connection mode can provide stable fixing support for the servo motor, prevent the servo motor from moving during operation, and ensure the stability of power output.

[0034] In an embodiment of the present application, the bottom plate 102 is further provided; the bottom plate 102 is arranged at the bottom of the structure frame 103; the shock absorber bottom plate 104 is connected with the bottom plate 102 through the spring fixing frame 109 and the spring 107. The shock-absorbing part formed by the above structure is that the spring fixing frame 109 connects the spring 107 and fixes it on the bottom plate 102. In the running process of the AGV trolley, when encountering uneven road surface or other vibration sources, the spring can be elastically deformed to absorb and buffer the vibration energy, provide the core shock-absorbing function for the whole structure, effectively reduce the vibration transmission to the vehicle body and passengers, and improve the riding comfort.

[0035] Further, the motor 105 is fixedly connected to the shock absorber bottom plate 104 through the motor fixing frame 108 and the screw.

[0036] Further, it further includes a fixed wheel sleeve 111; the fixed wheel sleeve 111 is fixedly connected with the lower end of the shock absorber bottom plate 104; the driving wheel 110 is connected with the rotating shaft of the motor 105 through the fixed wheel sleeve 111.

[0037] As an example, the fixed wheel sleeve 111 is connected with the rotating shaft of the servo motor, and is fixed on the driving wheel 110 through the screw 106. When the servo motor rotates, the driving wheel 110 can be driven to rotate, thereby providing power for the AGV. The driving wheel 110 is installed at the middle position of the bottom plate 102. Since the weight of the medium and large-sized manned AGV is large, the driving wheel 110 is installed at the middle position of the bottom plate 102, which is beneficial to bear the core weight, makes the weight distribution more reasonable, and thus enhances the driving capacity and stability. In the running process, the driving wheel 110 can more stably transmit power, and reduces the running instability phenomenon caused by uneven weight distribution.

[0038] In an embodiment of the present application, the roller 101 is a universal wheel.

[0039] As an example, in the auxiliary support and steering part, the shock absorber bottom plate 104 is not only used for fixing the servo motor, but also surrounds the driving wheel 110. This structure design plays a role in protecting the driving wheel 110, and can effectively reduce the wear of the driving wheel 110 in the running process. When the AGV runs, the driving wheel 110 may be impacted or rubbed by foreign matters from the ground. The shock absorber bottom plate 104 can act as a barrier to prevent these external factors from damaging the driving wheel 110, prolong the service life of the driving wheel 110, and thus reduce the maintenance cost of the equipment. In the present application, the above-mentioned roller 101 is preferably four universal wheels. The universal wheels are uniformly distributed on the chassis structure, which can effectively share the force of each part, so that the chassis frame is uniformly stressed. In the steering operation, the present application realizes the turning by adjusting the speed difference of the two servo motors, and realizes the rotation in each direction by matching the universal wheels. This steering mode is flexible and efficient, which can make the AGV smoothly turn in narrow space or complex environment, and improves the maneuverability and controllability of the AGV.

[0040] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0041] Although the preferred embodiments of the present application have been described, those skilled in the art can make other changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0042] Finally, it needs to be pointed out that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of other identical elements in the process, method, article or terminal device including the element.

[0043] The above provides a kind of shock absorption driving structure suitable for manned AGV chassis of the utility model, has carried out detailed introduction, the principle and implementation mode of the utility model are described in this paper by applying specific example, the above embodiment is only for helping to understand the method and its core idea of the utility model;Meanwhile, for the general technical personnel in the art, according to the idea of the utility model, there will be changes in specific implementation mode and application range, as described above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A shock-absorbing drive structure suitable for the chassis of a manned AGV (Automated Guided Vehicle) trolley, characterized in that, include: The structural frame has rollers installed at its lower edge. The shock absorber base plate is connected to the structural frame via an elastic component, and a motor is installed at its upper end. The motor's shaft is connected to a drive wheel.

2. The shock absorption drive structure for a manned AGV chassis according to claim 1, characterized in that, The shock absorber base plates are configured in even numbers and symmetrically distributed at the lower end of the structural frame. Each shock absorber base plate is equipped with a motor and a drive wheel.

3. The shock absorption drive structure for a manned AGV chassis according to claim 1 or 2, characterized in that, The motor is a servo motor.

4. The shock absorption drive structure for a manned AGV chassis according to claim 1, characterized in that, It also includes the base plate; The base plate is disposed at the bottom of the structural frame; The shock absorber base plate is connected to the base plate by a spring fixing bracket and a spring.

5. The shock absorption drive structure for a manned AGV chassis according to claim 4, characterized in that, The motor is fixedly connected to the base plate of the shock absorber by a motor mounting bracket and screws.

6. The shock absorption drive structure for a manned AGV chassis according to claim 5, characterized in that, It also includes fixed wheel sleeves; The fixed wheel sleeve is fixedly connected to the lower end of the vibrator base plate; The drive wheel is connected to the motor shaft via the fixed wheel sleeve.

7. The shock absorption drive structure for a manned AGV chassis according to claim 1, characterized in that, The rollers are omnidirectional wheels.

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