Rail-mounted special rotating roller table transport vehicle

Abstract

The utility model discloses a rail type special rotating roller table transport vehicle which comprises a walking device, a transport frame assembly and a rotating device. The slewing device comprises a slewing bearing upper connecting plate, a slewing bearing lower connecting plate, a slewing bearing inner ring, a slewing bearing outer ring, a square tube base and a first driving motor, the square tube base is fixed on the walking device, the bottom of the slewing bearing lower connecting plate is connected with the square tube base, and the top of the slewing bearing lower connecting plate is connected with the slewing bearing outer ring; the slewing bearing inner ring is arranged in the slewing bearing outer ring in a relatively rotating manner; the bottom of the slewing bearing upper connecting plate is connected with the slewing bearing inner ring, and the top is connected with the transportation frame assembly; the first driving motor is installed on the conveying frame assembly, a first meshing gear is arranged on an output shaft of the first driving motor, a second meshing gear is arranged on the outer ring of the slewing bearing, and the first meshing gear is in transmission connection with the second meshing gear. The device can realize high-precision rotation under the condition of heavy load, and can be movably applied to an intelligent flow production line.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transport vehicles, in particular to a rail special rotary roller table transport vehicle. Background Technique

[0002] The plywood production line is a complex and efficient manufacturing system, in which each link needs to operate highly cooperatively to ensure the product quality and production efficiency. In this environment, the transportation of heavy plywood is particularly important. The existing transportation technologies mainly adopt fixed conveying devices, such as roller conveyors, belt conveyors, and chain conveyors. These devices have disadvantages such as fixed layouts, lack of flexibility, large space occupation, etc. during the process of transporting plywood. Moreover, the existing conversion of the pallet direction is through a fixed device, and under the same conditions, adding a production line equipment increases the investment.

[0003] The patent publication number "CN216234553U" discloses a chain conveyor, which is successively provided with a conveying unit, a driving unit, a frame, a rectifying unit, and a base from top to bottom. Although the rectifying unit can rotate the frame in place to make the conveying direction of the conveying unit consistent with the inclination direction of the goods, there are still the following defects when applied to the plywood production line:

[0004] 1. Since the plywood is heavy, when the rectifying unit rotates the whole machine under heavy load, the universal wheels are easy to be damaged and the rotation accuracy is not high; moreover, due to the limitation of the stroke of the cylinder form, the rotation angle range is relatively narrow, and only the angle offset correction can be realized;

[0005] 2. In addition, this patented technology adopts a fixed base form and cannot be used for mobile use in an intelligent assembly line.

[0006] The information disclosed in the above background technology section is only for increasing the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Content of the Utility Model

[0007] Aiming at the above-mentioned existing defects, the purpose of the present utility model is to provide a rail special rotary roller table transport vehicle, which can achieve high-precision rotation under heavy load and can be used for mobile application in an intelligent assembly line.

[0008] The technical solution of the present utility model is as follows:

[0009] An orbital special rotary roller table transporter includes a traveling device arranged on a track and a transport rack assembly for loading plywood. The transport rack assembly is rotatably connected to the traveling device through a slewing device. The slewing device includes an upper connecting plate of a slewing bearing, a lower connecting plate of the slewing bearing, an inner ring of the slewing bearing, an outer ring of the slewing bearing, a square tube base, and a first driving motor. The square tube base is fixed on the traveling device. The bottom of the lower connecting plate of the slewing bearing is connected to the square tube base, and the top is connected to the outer ring of the slewing bearing. The inner ring of the slewing bearing is rotatably arranged within the outer ring of the slewing bearing. The bottom of the upper connecting plate of the slewing bearing is connected to the inner ring of the slewing bearing, and the top is connected to the transport rack assembly. The first driving motor is installed on the transport rack assembly. A first meshing gear is arranged on the output shaft of the first driving motor, and a second meshing gear is arranged on the outer ring of the slewing bearing. The first meshing gear is in transmission connection with the second meshing gear.

[0010] Specifically, the transport rack assembly includes a transport rack base, a conveying unit, a transmission shaft, and a second driving motor. At least two conveying units are arranged in parallel on the transport rack base. The second driving motor is arranged at the end of the transport rack base. A first sprocket is arranged on the output shaft of the second driving motor, and a second sprocket is arranged on the transmission shaft. The first sprocket and the second sprocket are in transmission connection through a first chain. The same ends of at least two conveying units are connected through the first transmission shaft, and the transmission shaft is used to drive the conveying unit.

[0011] Specifically, the conveying unit includes a third sprocket, a second chain, a fourth sprocket, and a chain rack. The chain rack is arranged on the transport rack base. The transmission shaft vertically penetrates the end of the chain rack. The third sprocket is fixed on the transmission shaft at one end of the chain rack, and the fourth sprocket is rotatably arranged at the other end of the chain rack. The third sprocket and the fourth sprocket are in transmission connection through the second chain.

[0012] Specifically, the traveling device includes a traveling base, a traveling wheel set, and a third driving motor. At least two groups of traveling wheel sets are arranged on the traveling base, and the traveling wheel sets are driven by the third driving motor to travel on the track.

[0013] Specifically, the lower connecting plate of the slewing bearing is welded to the square tube base, and the outer ring of the slewing bearing is connected to the lower connecting plate of the slewing bearing through bolts.

[0014] Specifically, the upper connecting plate of the slewing bearing is welded to the bottom of the transport rack base, and the inner ring of the slewing bearing is connected to the upper connecting plate of the slewing bearing through bolts.

[0015] The beneficial effects of the present utility model:

[0016] (1) The utility model is provided with an orbital special rotary roller table transport vehicle, which can respectively perform the functions of whole vehicle walking, conversion of the direction of the board stack, and chain conveying of plywood for unloading. The three movements can be carried out simultaneously, and each movement can be accurately sensed and controlled by sensors. Therefore, it can be applied to an intelligent production line;

[0017] (2) Through the setting of the slewing device of this solution, the meshing gear of the driving motor meshes with the meshing gear of the outer ring of the slewing bearing to drive the rotation, so that the inner ring of the slewing bearing rotates concentrically inside the outer ring of the slewing bearing, driving the rotation of the transport frame assembly. Under the condition of heavy load, the tilting force received is small, making the control of the rotation angle more accurate. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an orbital special rotary roller table transport vehicle of the utility model.

[0019] Figure 2 It is a top view of an orbital special rotary roller table transport vehicle of the utility model.

[0020] Figure 3 It is a schematic diagram of the connection between the inner ring and the outer ring of the slewing bearing of the slewing device of the utility model.

[0021] Figure 4 It is a schematic diagram of the connection between the inner ring of the slewing bearing, the outer ring of the slewing bearing, the lower connecting plate of the slewing bearing, and the square tube base of the slewing device of the utility model.

[0022] Figure 5 It is a schematic diagram of the structure of the transport frame assembly of the utility model.

[0023] Figure 6 It is a side view of the transport frame assembly of the utility model.

[0024] Figure 7 It is a top view of the transport frame assembly of the utility model.

[0025] Figure 8 It is a schematic diagram of the walking device of the utility model.

[0026] In the figure, 1 - rail, 2 - upper connecting plate of slewing bearing, 3 - lower connecting plate of slewing bearing, 4 - inner ring of slewing bearing, 5 - outer ring of slewing bearing, 6 - square tube base, 7 - first driving motor, 8 - first meshing gear, 9 - second meshing gear, 10 - conveying frame base, 11 - transmission shaft, 12 - second driving motor, 13 - first sprocket, 14 - second sprocket, 15 - third sprocket, 16 - second chain, 17 - fourth sprocket, 18 - chain rack, 19 - walking base, 20 - walking wheel set, 21 - third driving motor. Detailed Embodiment

[0027] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with embodiments and with reference to the accompanying drawings. In the description of the embodiments, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present embodiments and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] As shown in Figure 1-8 FIGs. 1, 2, and 4, a track-type special rotary roller table transport vehicle according to a specific embodiment of the present solution is used for transporting plywood. It mainly includes a traveling device, a slewing device, and a transport frame assembly stacked from bottom to top. The traveling device is arranged on the track 1, and the transport frame assembly is used for loading and transporting plywood. Among them, the transport frame assembly is rotatably connected to the traveling device through the slewing device.

[0029] Referring to Figure 1 FIGs. 1, 3 2, and 4, the slewing device includes a slewing bearing upper connecting plate 2, a slewing bearing lower connecting plate 3, a slewing bearing inner ring 4, a slewing bearing outer ring 5, a square tube base 6, and a first driving motor 7. The square tube base 6 is fixed on the traveling device, the slewing bearing lower connecting plate 3 is welded to the square tube base 6, the slewing bearing outer ring 5 is connected to the slewing bearing lower connecting plate 3 by bolts, the slewing bearing inner ring 4 is concentrically arranged inside the slewing bearing outer ring 5. The slewing bearing inner ring 4 can be provided with an inner stop to form the bottom support of the slewing bearing inner ring 4, and the outer cylindrical surface is in contact with the inner cylindrical surface of the slewing bearing outer ring 5, so that the slewing bearing inner ring 4 can rotate relative to the slewing bearing outer ring 5; the slewing bearing upper connecting plate 2 is welded to the transport frame assembly, and the slewing bearing inner ring 4 is connected to the slewing bearing upper connecting plate 2 by bolts; the first driving motor 7 is installed on the transport frame assembly, and a first meshing gear 8 is provided on the output shaft of the first driving motor 7, and a second meshing gear 9 is provided on the slewing bearing outer ring 5, and the first meshing gear 8 is in transmission connection with the second meshing gear 9.

[0030] The slewing device of this embodiment is driven to rotate by the meshing of the meshing gear of the driving motor with the meshing gear of the slewing bearing outer ring, so that the slewing bearing inner ring rotates concentrically inside the slewing bearing outer ring, thereby driving the transport frame assembly to rotate. Such a structure is less affected by the tilting force under heavy loads, is not easily damaged, and can make the control of the rotation angle more precise, solving the problems of low rotation accuracy, narrow rotation angle range, and easy damage of the chain conveyor in the prior art under heavy loads, and achieving the purpose of this embodiment.

[0031] As a preferred technical solution of this embodiment, referring to Figure 2 FIGs. 1, 5, as shown in FIGS. 6 and 7, the transport rack assembly includes a transport rack base 10, a transport unit, a drive shaft 11, and a second drive motor 12; three transport units are arranged in parallel on the transport rack base 10, the second drive motor 12 is arranged at the end of the transport rack base 10, a first sprocket 13 is arranged on the output shaft of the second drive motor 12, a second sprocket 14 is arranged on the drive shaft 11, and the first sprocket 13 and the second sprocket 14 are connected by a first chain; the same ends of the three transport units are connected by the drive shaft 11, and the drive shaft 11 is used to drive the transport units. After the pallet enters the transport rack, the rotation unit rotates the direction, and the direction of the pallet can be adjusted by 90°. By passing through the transport unit, the plywood can be unloaded mechanically.

[0032] As a further preferred technical solution of this embodiment, each transport unit includes a third sprocket 15, a second chain 16, a fourth sprocket 17, and a chain rack 18. The chain rack 18 is arranged on the transport rack base 10, the drive shaft 11 vertically penetrates the end of the chain rack 18, the third sprocket 15 is fixed on the drive shaft 11 at one end of the chain rack 18, the fourth sprocket 17 is rotatably arranged at the other end of the chain rack 18, and the third sprocket 15 and the fourth sprocket 17 are connected by the second chain 16. The chains of the three transport units are all driven by one drive motor, operating at a unified speed and in a unified direction. Coupled with the slewing device, the rotation angles of the three transport units are unified.

[0033] As a preferred technical solution of this embodiment, referring to Figure 8 the walking device shown, the walking device includes a walking base 19, a walking wheel set 20, and a third drive motor 21. Two groups of walking wheel sets are arranged on the walking base 19, and the walking wheel set 20 is driven by the third drive motor 21 to walk on the track 1. Therefore, the transport vehicle of this embodiment can transport back and forth on the track and can have the function of loading and then transporting to the next station for unloading.

[0034] In this embodiment, the vehicle travels, the direction of the pallet is converted, and the chain conveyor of the plywood achieves the unloading function. The three movements can be carried out simultaneously, and each movement can be accurately sensed and controlled by a sensor. Therefore, it can be applied to an intelligent production line.

[0035] Although the present invention has been described in detail above with specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A track-type special rotating roller transport vehicle, characterized in that: The invention comprises a running device arranged on a track (1), and a transport frame assembly for loading plywood, wherein the transport frame assembly is rotatably connected to the running device via a slewing device; the slewing device comprises a slewing bearing upper connecting plate (2), a slewing bearing lower connecting plate (3), a slewing bearing inner ring (4), a slewing bearing outer ring (5), a square base (6), and a first drive motor (7); the square base (6) is fixed on the running device, the bottom of the slewing bearing lower connecting plate (3) is connected to the square base (6), and the top is connected to the slewing bearing. The slewing bearing outer ring (5) is connected, and the slewing bearing inner ring (4) is relatively rotatably arranged in the slewing bearing outer ring (5); the bottom of the slewing bearing upper connecting plate (2) is connected to the slewing bearing inner ring (4), and the top is connected to the transport frame assembly; the first drive motor (7) is installed on the transport frame assembly, the output shaft of the first drive motor (7) is provided with a first meshing gear (8), the slewing bearing outer ring (5) is provided with a second meshing gear (9), and the first meshing gear (8) is transmission-connected with the second meshing gear (9).

2. The track-type special rotating roller transport vehicle according to claim 1, characterized in that: The transport frame assembly comprises a transport frame base (10), a transport unit, a transmission shaft (11), and a second drive motor (12); at least two transport units are arranged in parallel on the transport frame base (10); the second drive motor (12) is arranged at the end of the transport frame base (10); a first sprocket (13) is arranged on the output shaft of the second drive motor (12); a second sprocket (14) is arranged on the transmission shaft (11); the first sprocket (13) and the second sprocket (14) are connected through a first chain transmission; the same end of at least two transport units is connected through the transmission shaft (11); the transmission shaft (11) is used to drive the transport units.

3. The track-type special rotating roller transport vehicle according to claim 2, characterized in that: The conveying unit comprises a third sprocket (15), a second chain (16), a fourth sprocket (17), and a chain frame (18); the chain frame (18) is arranged on a conveying frame base (10); the transmission shaft (11) vertically penetrates the end of the chain frame (18); the third sprocket (15) is fixed on the transmission shaft (11) at one end of the chain frame (18); the fourth sprocket (17) is rotatably arranged at the other end of the chain frame (18); the third sprocket (15) and the fourth sprocket (17) are connected in transmission via the second chain (16).

4. The track-type special rotating roller transport vehicle according to claim 1, characterized in that: The walking device comprises a walking base (19), a walking wheel group (20), and a third driving motor (21), wherein at least two walking wheel groups are arranged on the walking base (19), and the walking wheel group (20) is driven by the third driving motor (21) to walk on the track (1).

5. The track-type special rotating roller transport vehicle according to claim 1, characterized in that: The slewing bearing lower connecting plate (3) is welded to the square base (6), and the slewing bearing outer ring (5) is connected to the slewing bearing lower connecting plate (3) by bolts.

6. The track-type special rotating roller transport vehicle according to claim 2, characterized in that: The slewing bearing upper connecting plate (2) is welded to the bottom of the conveying frame base (10), and the slewing bearing inner ring (4) is connected to the slewing bearing upper connecting plate (2) by bolts.

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