Workbin steering mechanism, workbin conveying line and transport vehicle

Abstract

The utility model relates to a workbin steering mechanism, a workbin conveying line and a transport cart, which comprise a lower support, a rotary component is arranged in the center of the lower support and connected with the center of an upper support, and the upper support is provided with a conveying assembly. At least one set of supporting components is arranged between the upper support and the lower support so that the upper support can be supported in the rotating process of the upper support, and the multiple supporting components in the same set are distributed in the circumference with the center of the upper support and the center of the lower support as the circle center. The steering mechanism solves the problems that a traditional roller way rotary table is large in debugging deformation and insufficient in rotary table load.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics conveying equipment, and in particular to a material box steering mechanism, a material box conveying line and a transport vehicle. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] At present, the material box steering mechanism adopts a roller steering mechanism, which is widely used in logistics distribution centers, food industry and other places. It includes an upper conveying mechanism, outriggers, and an electric control cabinet. The upper conveying mechanism is installed with several rollers as conveying rollers. The rollers are set on the conveying roller frame. The upper conveying mechanism can rotate horizontally to facilitate the adjustment of the conveying direction. The existing roller steering mechanism has three main steering methods: manual push and ordinary three-phase motor.

[0004] The artificially driven structure is mainly realized by artificial driving, and the steering action is realized by the bearing structure. This method has low structural efficiency, low positioning accuracy, high environmental requirements, and has a great impact on the stability and life of the equipment in high dust and other environments.

[0005] The structure of an ordinary three-phase motor is mainly realized by an ordinary three-phase motor, and the steering action is realized by relying on a turntable bearing structure. For example, patent application CN108750620A discloses a roller steering mechanism using an ordinary three-phase motor structure, including an outlet roller, an infeed roller, a turntable roller turntable bearing and a turntable bearing base. The center axis of the turntable bearing is vertically arranged, the inner ring of the turntable bearing is pressed on the turntable bearing base, the outer ring of the turntable bearing is a gear ring, a turntable motor is installed on the turntable bearing base, and a gear meshing with the gear ring is installed on the output end of the turntable motor. The turntable roller is pressed on the outer ring of the turntable bearing so that the turntable roller can rotate synchronously with the outer ring of the turntable bearing. In the above-mentioned roller turntable mechanism, the steering action is realized by driving the turntable motor and relying on the turntable bearing. This method has a complex structure, a small force support area at the turntable bearing, poor support effect at the front and rear joints with the conveyor line, large debugging deformation and insufficient turntable load. Due to the size of the three-phase motor, it has higher requirements for on-site installation and adjustment and is not fully applicable to the conveying industry. There is no protective cover during rotation, which affects normal transportation and may also cause safety accidents. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a material box steering mechanism and a material box conveyor line, which solve the defects of the existing steering mechanism using a three-phase motor.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In the first aspect, an embodiment of the utility model provides a material box steering mechanism, including a lower bracket, a rotating component is provided at the center of the lower bracket, the rotating component is connected to the center of the upper bracket, the upper bracket is provided with a conveying assembly, and at least one group of supporting components is provided between the upper bracket and the lower bracket to support the upper bracket during the rotation of the upper bracket, and multiple supporting components of the same group are distributed along a circle with the center of the upper bracket and the lower bracket as the center.

[0009] Optionally, the supporting component is arranged at the edge position of the bottom surface of the upper bracket and the lower bracket.

[0010] Optionally, the plurality of support components in the same group are distributed at equal intervals along the circumference.

[0011] Optionally, the supporting component comprises a wheel frame, the wheel frame is fixed to the bottom surface of the upper bracket, the wheel frame is connected to a supporting wheel, and the supporting wheel is in contact with the lower bracket;

[0012] Alternatively, the supporting component includes a sliding block, the top end of the sliding block is fixed to the upper bracket, and the bottom end of the sliding block is slidably matched with the upper surface of the lower bracket.

[0013] Optionally, a protective cover is fixed to the lower bracket, and the protective cover is located at the periphery of the space between the upper bracket and the lower bracket.

[0014] Optionally, the rotating component adopts a servo motor, the housing of the servo motor is fixed to the lower bracket through a flange, and the output shaft thereof is fixed to the upper bracket through a flange;

[0015] or,

[0016] The rotating component adopts a servo rotating platform.

[0017] Optionally, a baffle is provided on the bottom surface of the upper bracket, and an elastic buffer matched with the baffle is provided on the upper surface of the lower bracket, and the elastic buffer is arranged at positions corresponding to the two rotation limit ends of the baffle.

[0018] Optionally, the elastic buffer member adopts an oil pressure buffer;

[0019] or;

[0020] The elastic buffer is a spring with one end fixed to the lower bracket.

[0021] Optionally, the upper bracket is provided with two relatively arranged guide plates to guide the movement of the material box on the conveying assembly, and the guide plate includes a straight plate section, which is arranged parallel to the moving direction of the material box, and both ends of the straight plate section are provided with inclined plate sections inclined toward the outside.

[0022] Optionally, a photoelectric sensor is provided on one side of the conveying component to detect whether the conveying component has completed the entry or delivery of the material box.

[0023] In a second aspect, an embodiment of the present utility model provides a material box conveyor line, which is provided with the material box steering mechanism described in the first aspect.

[0024] In a third aspect, an embodiment of the present utility model provides a material box transport device, which is provided with the material box steering mechanism described in the first aspect.

[0025] The beneficial effects of the above utility model are as follows:

[0026] 1. The material box steering mechanism of the utility model has a supporting component between the upper bracket and the lower bracket, so that when the upper bracket rotates, it can use the lower bracket for support, so that the force on the upper bracket is more uniform, and there is no need to set up an additional supporting structure. The supporting effect at the front and rear joints with the conveyor line is good, and the ability to cope with eccentric load is stronger, which solves the problems of large deformation during debugging of traditional roller turntables and insufficient turntable load.

[0027] 2. The material box steering mechanism of the utility model adopts a servo motor or a servo rotary platform as the rotating part. Compared with the traditional three-phase motor, it has a small size, fewer requirements on site conditions, stronger load-bearing capacity, higher movement accuracy, and the equipment runs stably and smoothly with low noise, has stronger adaptability to the environment, and has a wider range of applications. The servo motor or servo rotary platform can achieve efficient rotation and short rotation time, thereby improving production and transportation efficiency. Moreover, the servo motor or servo rotary platform is cheaper than the traditional three-phase motor, which reduces the equipment manufacturing cost and maintenance cost.

[0028] 3. The material box steering mechanism of the utility model is provided with a protective cover, which completely encloses the rotating parts, supporting parts, etc., thereby ensuring the safety of equipment operation, preventing safety accidents, and ensuring the stability and life of the equipment operation.

[0029] 4. The material box steering mechanism of the utility model is provided with a baffle and an elastic buffer, which play a positioning and buffering role on the rotation of the upper bracket, thereby ensuring the rotation accuracy of the upper bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0031] Figure 1 This is a front view of the overall structure of Embodiment 1 of the utility model;

[0032] Figure 2 This is a top view of the overall structure of Embodiment 1 of the utility model;

[0033] Figure 3 This is a sectional view of the overall structure of Embodiment 1 of the utility model;

[0034] Among them, 1. conveying roller, 2. conveying roller bracket, 3. rotating component, 4. supporting component, 5. upper bracket, 6. lower bracket, 7. supporting leg, 8. hydraulic buffer, 9. protective cover, 10. control box. DETAILED DESCRIPTION

[0035] Example 1

[0036] This embodiment provides a middle material box steering mechanism, such as Figure 1-Figure 3 As shown, it includes an upper bracket 5 and a lower bracket 6. The upper bracket 5 is fixed with a conveying mechanism, which is used to convey the material box. A rotating component 3 is installed at the center of the lower bracket 6. The rotating part of the rotating component 3 is connected to the center of the upper bracket 5. The rotating component 3 can drive the upper bracket 5 to rotate around its own axis, and then drive the conveying mechanism to rotate, so as to adjust the conveying direction of the material box.

[0037] At least one group of supporting components 4 is arranged between the upper bracket 5 and the lower bracket 6, the top of the supporting component is connected to the upper bracket 5, and the bottom is matched with the top surface of the lower bracket 6, or the bottom of the supporting component 4 is fixed to the top surface of the lower bracket 6, and the top surface of the supporting component 4 is matched with the bottom surface of the upper bracket 5.

[0038] In this embodiment, at least one group of supporting components 4 is provided on the bottom surface of the upper bracket 5, and the bottom of the supporting components 4 cooperates with the top surface of the lower bracket 6. The multiple supporting components 4 of each group are distributed along the circumference, and the center of the circle is located on the axis of the upper bracket 5 and the lower bracket 6. When multiple groups of supporting components 4 are provided, the diameters of the circles where the supporting components 4 of different groups are located are different.

[0039] In this embodiment, a group of supporting components 4 are provided on the bottom surface of the upper bracket 5. In order to better provide supporting force to the upper bracket 5 so that the upper bracket 5 is evenly stressed during rotation, the supporting components 4 are arranged at the edge position of the bottom surface of the upper bracket 5, and multiple supporting components 4 of the same group are evenly distributed along the circumference.

[0040] The number of the supporting components 4 is two, three, four or more, and can be set by those skilled in the art according to actual needs.

[0041] The supporting component 4 includes a wheel frame, which is fixed to the bottom surface of the upper bracket 5 by bolts, and a supporting wheel is installed on the wheel frame.

[0042] The support wheel contacts and cooperates with the upper surface of the lower bracket 6 so as to apply a supporting load to the upper bracket 5 by using the lower bracket 6 .

[0043] In one embodiment, the support wheel is a universal wheel. In another embodiment, the support wheel is a fixed wheel. The fixed wheel is connected to the wheel frame via a wheel axle. The axis of the fixed wheel is arranged along the radial direction of the upper bracket 5 and the lower bracket 6.

[0044] By providing the supporting component 4, the lower bracket 6 can be used for support when the upper bracket 5 rotates, so that the force on the upper bracket 5 is more uniform, and there is no need to provide an additional supporting structure. The supporting effect at the front and rear joints with the conveyor line is good, and the ability to cope with off-center load is stronger, which solves the problems of large deformation during debugging of traditional roller turntables and insufficient turntable load.

[0045] The rotating component 3 adopts a servo motor which is coaxially arranged with the upper bracket 5 and the lower bracket 6. The bottom end of the motor housing of the servo motor is provided with a lower flange, and is fixedly connected to the lower bracket 6 through the lower flange and multiple bolts. The output shaft of the servo motor is connected to the upper flange and is fixedly connected to the center of the bottom surface of the upper bracket 5 through the upper flange and multiple bolts.

[0046] The servo motor can drive the upper bracket 5 to rotate around its own axis.

[0047] In another embodiment, the rotating component adopts an existing servo rotating platform, the fixed part of the servo rotating platform is fixed to the lower bracket 6 by multiple bolts, and the rotating part is fixed to the bottom center of the upper bracket 5 by multiple bolts.

[0048] The servo rotary platform can drive the upper bracket 5 to rotate around its own axis.

[0049] In this embodiment, the rotating component uses a servo motor or a servo rotating platform to drive the upper bracket 5 to rotate. Compared with the traditional use of a three-phase motor to drive the upper bracket to rotate, the servo motor or servo rotating platform is small in size, has fewer requirements on site conditions, has a stronger load-bearing capacity, and has higher movement accuracy. In addition, the equipment runs stably and smoothly, with low noise, stronger environmental adaptability, and a wider range of applications. The servo motor or servo rotating platform can achieve efficient rotation, short rotation time, and improve production and transportation efficiency. The servo motor or servo rotating platform is cheaper than the traditional three-phase motor, reducing equipment manufacturing costs and maintenance costs.

[0050] A protective cover 9 is provided at the outer edge of the lower bracket 6, and the protective cover 9 extends upward to the upper bracket 5 so that the protective cover 9 is arranged on the periphery of the area between the upper bracket 5 and the lower bracket 6. The protective cover 9 seals the space between the upper bracket 5 and the lower bracket 6, and protects the servo motor, supporting component 4, etc. inside, thereby ensuring the safety of equipment operation, preventing safety accidents, and ensuring the stability and life of the equipment operation.

[0051] Furthermore, the protective cover 9 is fixed to the lower bracket 6 by screws or bolts or other threaded fasteners, and is quick and easy to install and remove, which is convenient for the later inspection and maintenance of the internal equipment.

[0052] Furthermore, due to the effect of inertia, the brake mechanism of the servo motor cannot ensure the rotational positioning accuracy of the upper bracket 5. Therefore, in order to ensure the rotational positioning accuracy of the upper bracket 5 and to buffer the change from the moving state to the stopped state, a baffle is provided on the bottom surface of the upper bracket. The baffle is arranged vertically to the upper bracket 5. The baffle moves along a circular arc trajectory with the rotation of the upper bracket 5. The circular arc trajectory has two rotation limit ends. The baffle rotates with the upper bracket 5 within the position range of the two rotation limit ends.

[0053] Two elastic buffers are arranged on the upper surface of the lower bracket 6 , and the installation positions of the two elastic buffers on the upper surface of the lower bracket 6 correspond to the positions of the two rotation limit ends respectively.

[0054] When the baffle moves with the upper bracket, when the upper bracket 5 rotates to a position close to the target angle, the baffle contacts the elastic buffer, and the elastic buffer is compressed under the action of the baffle until the baffle moves to the rotation limit end position and stops moving. The elastic buffer has a positioning and buffering effect on the baffle.

[0055] In this embodiment, the elastic buffer member adopts the existing oil pressure buffer 8, and the axis of the oil pressure buffer 8 is arranged along the tangent direction of the circle where the baffle moves.

[0056] The hydraulic buffer 8 is detachably connected to the lower bracket 6 by threaded fasteners such as bolts or screws, and its installation position can be adjusted according to the steering angle required by the entire steering mechanism, for example:

[0057] When the required steering angle of the steering mechanism is 90°, the two oil pressure buffers 8 are arranged at an interval of 90°. When the required steering angle of the steering mechanism is 180°, the two oil pressure buffers 12 are arranged at an interval of 180°.

[0058] By providing the oil pressure buffer 12, it is also possible to prevent the upper bracket 5 from rotating suddenly during equipment maintenance, thereby ensuring the safety of maintenance personnel.

[0059] In another embodiment, the elastic buffer is a spring, which is arranged tangentially along the circumference of the baffle movement, one end of the spring is fixed to the spring seat, the spring seat and the top surface of the lower bracket are detachably fixed by threaded fasteners such as bolts or screws, and the other end of the spring is used to contact the baffle.

[0060] The conveying assembly includes a plurality of conveying rollers 1 , which are distributed along the conveying direction of the material box. Two ends of the conveying rollers 1 are rotatably connected to a conveying roller bracket 2 , and the conveying roller bracket 2 is fixed to the upper surface of an upper bracket 5 .

[0061] In the present embodiment, since the upper bracket 5 is a circular structure, in order to meet the shape requirements of the upper bracket 5, the conveying roller 1 includes a plurality of single conveying rollers with a longer length located in the middle of the upper bracket 5, and a plurality of pairs of conveying rollers with a shorter length are sequentially arranged on both sides of the plurality of single conveying rollers with a longer length along the conveying direction, wherein the conveying roller pair includes two coaxial conveying rollers distributed perpendicular to the conveying direction, and both ends of the conveying roller are rotatably connected to the conveying roller bracket, and the total length of the conveying roller pair gradually decreases along the conveying direction.

[0062] In this embodiment, adjacent conveying rollers 1 are connected by a transmission assembly to achieve power transmission. The transmission assembly adopts a belt transmission mechanism, and the transmission belt of the belt transmission mechanism adopts a multi-V belt or a round belt, etc., and technical personnel in this field can set it according to actual needs. It can be understood that the transmission assembly can also adopt a chain transmission mechanism or a gear transmission mechanism, etc., as long as the adjacent conveying rollers can rotate synchronously at the same speed and in the same direction. Technical personnel in this field can set it according to actual needs, and will not be described in detail here.

[0063] At least one conveying roller 1 uses an existing power roller as an active conveying roller and can actively rotate, and the remaining conveying rollers 1 are driven to rotate through a transmission component and serve as driven conveying rollers.

[0064] The active conveying roller rotates, which can drive the driven conveying roller to rotate through the conveying assembly, and all conveying rollers 1 rotate in the same direction, thereby realizing the conveyance of the material box.

[0065] Furthermore, in order to guide the movement of the material box and position the material box on the conveying assembly so that the material box can enter the subsequent transmission equipment, the upper bracket is also connected to two guide plates 11 through a guide plate bracket. The two guide plates 11 are arranged in parallel and opposite to each other. The two guide plates 11 are located above the conveying assembly. The two guide plates can contact the material box to position the material box on the conveying roller.

[0066] The guide plate 11 includes a straight plate section, and two straight plate sections are arranged along the conveying direction of the material box. Both ends of the two straight plate sections are provided with inclined plate sections inclined toward the outside. Through the inclined plate sections, the material box can be guided into the space between the two straight plate sections to realize the positioning of the material box by using the straight plate sections.

[0067] A photoelectric sensor is also provided on one side of the conveying assembly to detect whether the material box enters or leaves the conveying assembly. The photoelectric sensor is connected to a sensor bracket, and the sensor bracket is fixed on the upper bracket or the conveying roller bracket.

[0068] The lower bracket 6 is fixedly connected to the top ends of a plurality of legs 7, and the bottom ends of the legs 7 are used to be fixed on the ground foundation, so that the lower bracket is supported by the legs.

[0069] In this embodiment, four legs 7 are provided, wherein a cross beam is provided between two legs 7 , and a cross beam is provided between the other two legs 7 . The cross beam is perpendicular to the legs 7 , and the two cross beams are arranged oppositely and in parallel.

[0070] Furthermore, the support leg 7 adopts a telescopic structure, including a fixed part and a telescopic part, the fixed part and the telescopic part are telescopically connected, the telescopic part is provided with a plurality of first fixing holes along the axial direction, the fixed part is provided with a second fixing hole, the telescopic part and the fixed part are fixedly connected by the first fixing holes, the second fixing holes and threaded fasteners such as bolts and nuts, and different first fixing holes cooperate with the second fixing holes to adjust the length of the entire support leg, thereby meeting the installation requirements when the ground foundation is uneven, and having strong adaptability to the installation environment.

[0071] Correspondingly, the crossbeam is connected to the telescopic part of the leg 7. The specific connection method is that two studs are fixed at the end of the crossbeam, and the two studs pass through the legs through the vertical long holes set in the telescopic part of the legs and are threadedly connected with nuts. The nuts are pressed against the surface of the legs to achieve the fixation of the crossbeam and the legs.

[0072] In this embodiment, the photoelectric sensor, the power roller and the rotating component are all connected to the control system. The control system is installed in the control box 10, and the control box 10 is fixed on the crossbeam.

[0073] The working method of this embodiment is:

[0074] The material box enters the conveying assembly from the feeding side. After the photoelectric sensor detects that the material box has completely entered the conveying assembly, it sends a signal to the control system. The control system controls the rotating component 3 to work, and the rotating component 3 drives the upper bracket 5 to rotate to turn the conveying assembly. After the baffle contacts the hydraulic buffer 8 and compresses the hydraulic buffer 8 to a certain extent, the rotating component 3 stops working and completes the turning. After the turning is completed, the conveying assembly continues to work to send the material box out.

[0075] Example 2

[0076] This embodiment provides a material box steering mechanism. Compared with Embodiment 1, the only difference is that the supporting component 4 adopts a supporting slider, which is an arc-shaped slider, the top surface of which is fixed to the bottom surface of the upper bracket 5, and the bottom surface is in contact with and slidably connected to the top surface of the lower bracket 6, or the bottom of the supporting slider cooperates with the circular guide rail set on the top surface of the lower bracket 6 to achieve a sliding connection with the lower bracket.

[0077] The rest of the structure of this embodiment is the same as that of Embodiment 1 and will not be described again here.

[0078] Example 3

[0079] This embodiment provides a material box conveyor line, which is provided with the material box steering mechanism described in Example 1 or Example 2. The remaining structure of the material box conveyor line can adopt the existing technology, including the feed roller and the discharge roller, etc., which will not be described in detail here.

[0080] Example 4

[0081] The present embodiment provides a material box transport vehicle, which is an AGV vehicle or a shuttle vehicle, and is provided with the material box steering mechanism described in Example 1 or Example 2. In the present embodiment, the material box steering mechanism is not provided with legs, and the lower bracket is directly installed on the body of the material box transport vehicle. The control system can adopt the control system of the material box transport vehicle, and the remaining structure of the material box transport vehicle can adopt the existing technology, which will not be described in detail here.

[0082] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A material box steering mechanism, characterized in that: It includes a lower bracket, a rotating component is provided at the center of the lower bracket, the rotating component is connected to the center of the upper bracket, the upper bracket is provided with a transmission component, and at least one group of supporting components is provided between the upper bracket and the lower bracket to support the upper bracket during the rotation of the upper bracket. The multiple supporting components of the same group are distributed along a circle with the center of the upper bracket and the lower bracket as the center.

2. A material box steering mechanism according to claim 1, characterized in that: The supporting component is arranged at the edge position of the bottom surface of the upper bracket and the lower bracket.

3. A material box steering mechanism according to claim 1, characterized in that: The plurality of support components in the same group are distributed at equal intervals along the circumference.

4. A material box steering mechanism according to claim 1, characterized in that: The supporting component comprises a wheel frame, the wheel frame is fixed to the bottom surface of the upper bracket, the wheel frame is connected with a supporting wheel, and the supporting wheel is in contact with the lower bracket; Alternatively, the supporting component includes a sliding block, the top end of the sliding block is fixed to the upper bracket, and the bottom end of the sliding block is slidably matched with the upper surface of the lower bracket.

5. A material box steering mechanism according to claim 1, characterized in that: The lower bracket is fixed with a protective cover, and the protective cover is located at the periphery of the space between the upper bracket and the lower bracket.

6. A material box steering mechanism according to claim 1, characterized in that: The rotating component adopts a servo motor, the housing of the servo motor is fixed to the lower bracket through a flange, and the output shaft is fixed to the upper bracket through a flange; or, The rotating component adopts a servo rotating platform.

7. A material box steering mechanism according to claim 1, characterized in that: A baffle is provided on the bottom surface of the upper bracket, and an elastic buffer matched with the baffle is provided on the upper surface of the lower bracket. The elastic buffer is arranged at positions corresponding to the two rotation limit ends of the baffle.

8. A material box steering mechanism according to claim 7, characterized in that: The elastic buffer member adopts an oil pressure buffer; or; The elastic buffer is a spring with one end fixed to the lower bracket.

9. A material box steering mechanism according to claim 1, characterized in that: The upper bracket is provided with two oppositely arranged guide plates to guide the movement of the material box on the conveying assembly, and the guide plate includes a straight plate section, which is arranged parallel to the travel direction of the material box, and both ends of the straight plate section are provided with inclined plate sections inclined toward the outside.

10. A material box steering mechanism according to claim 1, characterized in that: A photoelectric sensor is provided on one side of the conveying component to detect whether the conveying component has completed the entry or delivery of the material box.

11. A material box conveyor line, characterized in that: A material box steering mechanism according to any one of claims 1 to 10 is provided.

12. A material box transport vehicle, characterized in that: A material box steering mechanism according to any one of claims 1 to 10 is provided.

Images