RGV pallet fork trolley

Abstract

The utility model discloses an RGV pallet fork trolley which comprises a trolley frame, a pallet fork mechanism and a detection mechanism, a driving box and a vehicle-mounted electric box are fixed to the two ends of the trolley frame respectively, driven wheels are arranged at the two ends of the bottom of the vehicle-mounted electric box, the pallet fork mechanism comprises a telescopic pallet fork, a bearing seat is fixed to the bottom of the telescopic pallet fork, and the detection mechanism is fixed to the bearing seat. And a second transmission shaft is arranged between the bearing seats, a driving motor is arranged on one side of the telescopic pallet fork, the detection mechanism comprises installation transverse rods, and an infrared transmitter and an infrared receiver are arranged on the two installation transverse rods correspondingly. The RGV pallet fork trolley is advanced in design, compact in structure and convenient to use, a chain conveying mode is replaced by a telescopic pallet fork goods taking and placing mode, goods can be accurately and stably taken and placed, abrasion to the bottom of a carrier can be effectively reduced, the positions of goods on the telescopic pallet fork can be monitored in real time, then it is ensured that the telescopic pallet fork can stretch out and draw back in place, and the working efficiency is improved. Therefore, the RGV pallet fork trolley can run safely and stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent logistics, and particularly relates to an RGV forklift truck. Background Art

[0002] RGV is the English abbreviation of Rail Guided Vehicle, also known as a rail shuttle car. RGV cars can be used in warehouses with various high-density storage methods. The car channels can be designed to be arbitrarily long, which can increase the storage capacity of the entire warehouse. And when operating, there is no need for a forklift to drive into the aisle, making its safety higher. By taking advantage of the fact that a forklift does not need to enter the aisle and cooperating with the rapid operation of the car in the aisle, the operation efficiency of the warehouse can be effectively improved.

[0003] The existing RGV cars mainly adopt a chain conveyor connection form. The chain machine has a large friction force and is easy to cause greater wear on the bottom of the carrier. Therefore, there is an urgent need to design an RGV forklift truck to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an RGV forklift truck to solve the problems existing in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: an RGV forklift truck, comprising:

[0006] A car frame, with a driving box and a vehicle-mounted electric box respectively fixed at both ends of the car frame. A reduction motor and a first transmission shaft are arranged in the driving box. The reduction motor is in transmission connection with the first transmission shaft. Both ends of the first transmission shaft are key-connected to the driving wheels arranged at both ends of the bottom of the driving box. Driving wheels are arranged at both ends of the bottom of the vehicle-mounted electric box;

[0007] A forklift mechanism, which includes a telescopic forklift fixed on the car frame. A bearing seat is fixed at the bottom of the telescopic forklift. A second transmission shaft is arranged between the two bearing seats. A driving motor in transmission connection with the second transmission shaft is arranged on one side of the telescopic forklift;

[0008] A detection mechanism, which includes mounting cross bars fixed on the side surfaces of the driving box and the vehicle-mounted electric box. An infrared emitter and an infrared receiver are respectively arranged on the two mounting cross bars.

[0009] Furthermore, it also includes a car track, which includes a track body and support feet. The track body is arranged directly below the driving wheels and the driven wheels. The top of the support feet is fixedly connected to the bottom of the track body. The bottom of the support feet is fixedly connected to the ground through bolts.

[0010] Furthermore, the telescopic direction of the telescopic fork is perpendicular to the traveling direction of the trolley frame.

[0011] Furthermore, a plurality of infrared emitters and infrared receivers are provided. The plurality of infrared emitters and infrared receivers are at the same horizontal height, and the infrared emitters and the infrared receivers are arranged in one-to-one correspondence.

[0012] Furthermore, the telescopic fork includes an upper fork arm, a middle fork arm, and a lower fork arm. The lower fork arm is fixedly connected to the trolley frame. The middle fork arm is movably connected to the lower fork arm through a gear and rack. The upper fork arm is movably connected to the middle fork arm through a sprocket and chain. The output shaft of the driving motor is key-connected to the gear at one end of the lower fork arm.

[0013] Furthermore, an alarm is fixed on one side of the driving box. The reduction motor, the alarm, the driving motor, the infrared emitter, and the infrared receiver are all electrically connected to the vehicle-mounted electric box.

[0014] Furthermore, driving buffers are provided at both ends of the outer sides of the driving box and the vehicle-mounted electric box.

[0015] The technical effects and advantages of the present utility model: The RGV fork trolley has an advanced design, a compact structure, and is convenient to use. By setting the telescopic fork, the telescopic fork loading and unloading mode is realized to replace the chain conveying mode, and goods can be loaded and unloaded accurately and smoothly, which can effectively reduce the wear on the bottom of the carrier. By setting the infrared emitter and the infrared receiver, the position of the goods on the telescopic fork can be monitored in real time, so as to ensure that the telescopic fork can extend and retract in place, making the RGV fork trolley operate safely and smoothly. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is another perspective structural diagram of the present utility model without the driving box;

[0018] Figure 3 is the front view of the present utility model;

[0019] Figure 4 is the right view of the present utility model;

[0020] Figure 5 is the top view of the present utility model.

[0021] In the figure: 100, trolley frame; 101, drive box; 102, vehicle-mounted electric box; 103, reduction motor; 104, first transmission shaft; 105, driving wheel; 106, driven wheel; 107, alarm; 108, traveling buffer block; 200, forklift mechanism; 201, telescopic forklift; 2011, upper fork arm; 2012, middle fork arm; 2013, lower fork arm; 202, bearing seat; 203, second transmission shaft; 204, drive motor; 300, detection mechanism; 301, mounting cross bar; 302, infrared emitter; 303, infrared receiver; 400, trolley track; 401, track body; 402, support foot. Detailed implementation manner

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] The present invention provides an RGV forklift trolley as shown in Figures 1-5 and includes:

[0026] Trolley frame 100, with a drive box 101 and a vehicle-mounted electrical box 102 fixed at both ends of the trolley frame 100 respectively. A reduction motor 103 and a first transmission shaft 104 are provided inside the drive box 101. The reduction motor 103 is in transmission connection with the first transmission shaft 104. Both ends of the first transmission shaft 104 are key-connected to the driving wheels 105 arranged at both bottom ends of the drive box 101. Driven wheels 106 are provided at both bottom ends of the vehicle-mounted electrical box 102. The reduction motor 103 can transmit power to the driving wheels 105 through the first transmission shaft 104, thereby driving the trolley frame 100 to run along the trolley track 400;

[0027] Fork mechanism 200, the fork mechanism 200 includes a telescopic fork 201 fixed on the trolley frame 100. A bearing seat 202 is fixed at the bottom of the telescopic fork 201. A second transmission shaft 203 is arranged between the two bearing seats 202. A drive motor 204 in transmission connection with the second transmission shaft 203 is provided on one side of the telescopic fork 201. The drive motor 204 can transmit power to the telescopic fork 201 through the second transmission shaft 203, thereby driving the telescopic fork 201 to perform telescopic movement;

[0028] Detection mechanism 300, the detection mechanism 300 includes mounting crossbars 301 fixed on the side surfaces of the drive box 101 and the vehicle-mounted electrical box 102. An infrared emitter 302 and an infrared receiver 303 are respectively arranged on the two mounting crossbars 301. By monitoring whether the infrared rays emitted by the infrared emitter 302 are received by the infrared receiver 303, it is judged whether there is a cargo on the telescopic fork 201 and the position of the cargo.

[0029] Exemplarily, referring to Figures 1-4 shown, it further includes a trolley track 400. The trolley track 400 includes a track body 401 and support feet 402. The track body 401 is arranged directly below the driving wheels 105 and the driven wheels 106. The top of the support feet 402 is fixedly connected to the bottom of the track body 401. The bottom of the support feet 402 is fixedly connected to the ground by bolts.

[0030] In this technical solution, it is convenient to support and fix the trolley track 400 through the support feet 402, and at the same time, it is also convenient for the driving wheels 105 and the driven wheels 106 to run along the top of the trolley track 400.

[0031] Exemplarily, referring to Figures 1-2 and Figure 5 shown, the telescopic direction of the telescopic fork 201 is perpendicular to the traveling direction of the trolley frame 100.

[0032] In this technical solution, it is convenient for the telescopic fork 201 to pick up and unload goods from the side of the trolley frame 100. It is convenient to load and unload goods, and it does not affect the operation of the trolley.

[0033] Exemplarily, referring to Figures 1-3As shown, a plurality of infrared transmitters 302 and infrared receivers 303 are provided. The plurality of infrared transmitters 302 and infrared receivers 303 are at the same horizontal height, and the infrared transmitters 302 and infrared receivers 303 are arranged in one-to-one correspondence.

[0034] In this technical solution, it can be ensured that the infrared rays emitted by each infrared transmitter 302 can be received by the corresponding infrared receiver 303. When the infrared receiver 303 cannot receive the infrared rays, it means that the infrared rays at this position are blocked by the goods, and then the position of the goods can be determined.

[0035] Exemplarily, referring to Figures 1-2 As shown, the telescopic fork 201 includes an upper fork arm 2011, a middle fork arm 2012 and a lower fork arm 2013. The lower fork arm 2013 is fixedly connected to the trolley frame 100. The middle fork arm 2012 is movably connected to the lower fork arm 2013 through a gear rack, and the upper fork arm 2011 is movably connected to the middle fork arm 2012 through a sprocket chain. The output shaft of the drive motor 204 is key-connected to the gear at one end of the lower fork arm 2013.

[0036] In this technical solution, the upper fork arm 2011, the middle fork arm 2012 and the lower fork arm 2013 cooperate with hundreds of components such as guide rollers, gear racks, sprocket chains, guide sliders, limit switches (travel switches), middle position switches (proximity switches), torque limiters, encoders, drivers, motors, speed reducers, and couplings to form a complete telescopic mechanism. This telescopic mechanism is a prior art, and its specific structure and working principle will not be elaborated here. Among them, the middle fork arm 2012 moves outward about half of its own length under the drive of the gear rack, and the upper fork arm 2011 continues to extend outward from the midpoint of the middle fork arm 2012.

[0037] Exemplarily, referring to Figure 1 and Figures 3-5 As shown, an alarm 107 is fixed on one side of the drive box 101. The reduction motor 103, the alarm 107, the drive motor 204, the infrared transmitter 302 and the infrared receiver 303 are all electrically connected to the vehicle-mounted electric box 102.

[0038] In this technical solution, the above-mentioned electrical appliances are connected as a whole through the vehicle-mounted electric box 102, which is convenient to uniformly coordinate and control the electrical appliances through the vehicle-mounted electric box 102.

[0039] Exemplarily, referring to Figure 1 and Figures 3-5 As shown, driving buffer blocks 108 are provided at both ends of the outer sides of the drive box 101 and the vehicle-mounted electric box 102.

[0040] In this technical solution, the traveling buffer block 108 is a cylindrical rubber buffer block. By setting the traveling buffer block 108, it can play a buffering role when a collision occurs.

[0041] Working principle: When the RGV forklift truck is in use, it first receives instructions from the WCS (Warehouse Control System) warehouse control system, and then starts the reduction motor 103 through the on-vehicle electrical box 102. The reduction motor 103 drives the driving wheel 105 to rotate through the first transmission shaft 104, thereby driving the RGV truck to move. When the RGV truck reaches the designated position of the system and interacts with information in real time, then the telescopic forklift 201 extends the fork to pick up the goods, and then the lifting conveyor descends. The telescopic forklift 201 retracts the fork and retracts the goods to the center of the truck. Then the RGV truck delivers the goods to the designated position, the telescopic forklift 201 extends the fork to convey the goods in place, and then the lifting conveyor raises the goods. The telescopic forklift 201 retracts the fork to complete the entire goods picking operation. This RGV forklift truck is advanced in design, compact in structure and convenient to use. By setting the telescopic forklift 201, the goods picking and placing mode of the telescopic forklift 201 is realized to replace the chain conveying mode, and the goods can be picked up and placed accurately and smoothly, which can effectively reduce the wear on the bottom of the carrier. By setting the infrared emitter 302 and the infrared receiver 303, the position of the goods on the telescopic forklift 201 can be monitored in real time, so as to ensure that the telescopic forklift 201 can extend and retract in place, making the RGV forklift truck operate safely and smoothly.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An RGV forklift truck, characterized in that Comprising: A trolley frame (100), with a drive box (101) and a vehicle-mounted electrical box (102) respectively fixed at both ends of the trolley frame (100). A reduction motor (103) and a first transmission shaft (104) are provided in the drive box (101). The reduction motor (103) is in transmission connection with the first transmission shaft (104). Both ends of the first transmission shaft (104) are key-connected to driving wheels (105) provided at both ends of the bottom of the drive box (101). Driving wheels (106) are provided at both ends of the bottom of the vehicle-mounted electrical box (102); A fork mechanism (200), which includes a telescopic fork (201) fixed to the trolley frame (100). A bearing seat (202) is fixed to the bottom of the telescopic fork (201). A second transmission shaft (203) is provided between the two bearing seats (202). A drive motor (204) in transmission connection with the second transmission shaft (203) is provided on one side of the telescopic fork (201); A detection mechanism (300), which includes a mounting cross bar (301) fixed to the side surfaces of the drive box (101) and the vehicle-mounted electrical box (102). An infrared emitter (302) and an infrared receiver (303) are respectively provided on the two mounting cross bars (301).

2. The RGV forklift truck according to claim 1, wherein: It further includes a trolley track (400), which includes a track body (401) and support feet (402). The track body (401) is arranged directly below the driving wheels (105) and the driven wheels (106). The top of the support feet (402) is fixedly connected to the bottom of the track body (401). The bottom of the support feet (402) is fixedly connected to the ground by bolts.

3. The RGV forklift truck according to claim 1, characterized in that: The telescopic direction of the telescopic fork (201) is perpendicular to the traveling direction of the trolley frame (100).

4. The RGV forklift truck according to claim 1, wherein: A plurality of infrared emitters (302) and infrared receivers (303) are provided. The plurality of infrared emitters (302) and infrared receivers (303) are at the same horizontal height, and the infrared emitters (302) and the infrared receivers (303) are arranged in one-to-one correspondence.

5. The RGV forklift truck according to claim 1, characterized in that: The telescopic fork (201) includes an upper fork arm (2011), a middle fork arm (2012), and a lower fork arm (2013). The lower fork arm (2013) is fixedly connected to the trolley frame (100). The middle fork arm (2012) is movably connected to the lower fork arm (2013) through a gear and rack. The upper fork arm (2011) is movably connected to the middle fork arm (2012) through a sprocket and chain. The output shaft of the drive motor (204) is key-connected to the gear at one end of the lower fork arm (2013).

6. The RGV forklift truck according to claim 1, wherein: An alarm (107) is fixed to one side of the drive box (101). The reduction motor (103), the alarm (107), the drive motor (204), the infrared emitter (302), and the infrared receiver (303) are all electrically connected to the vehicle-mounted electrical box (102).

7. The RGV forklift truck according to claim 1, characterized in that: Buffer blocks (108) for traveling are provided at both ends of the outer sides of the drive box (101) and the vehicle-mounted electrical box (102).

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