A high-altitude track anti-chain trolley

Abstract

This invention discloses a high-altitude track anti-chain trolley, belonging to the field of track trolley equipment. It includes a vehicle frame with a motor fixedly mounted within it, driving a transmission shaft. The vehicle frame is connected to the front and rear wheel axles of the trolley via support columns. Two identical transmission gears, transmission gear one and transmission gear two, are mounted on the transmission shaft. A front wheel gear is mounted on the front wheel axle, and a rear wheel gear is mounted on the rear wheel axle. Transmission gear one drives the front wheel gear via a transmission chain, and transmission gear two drives the rear wheel gear via the same transmission chain. The vehicle frame is connected to a suspended storage tray via a telescopic rod, and a sensor is installed on the storage tray. This invention can collect fallen broken chains, effectively eliminating the risk of objects falling from heights when chains detach, and allows for timely repair and reinstallation of fallen chains, saving waiting time and maintaining production order.

Description

Technical Field

[0001] This invention relates to the field of track trolley equipment, and in particular to a high-altitude track anti-chain trolley. Background Technology

[0002] In factory production, some processes require trolleys to move along elevated tracks to complete production steps. For example, belt-driven material conveyors need to travel along these tracks to different hoppers for refueling. Because these operations are at height, the structure is kept as simple as possible to reduce weight and facilitate aerial work. Therefore, the front and rear wheels of these elevated track trolleys are typically mounted on a frame without a chassis. Due to the ongoing nature of the project, the trolleys operate at 85-90% capacity. The trolleys move using a motor, reducer, gears, and chains that drive the front and rear wheel axles. Chain drops frequently occur due to wear, breakage, loose reducer bolts, and chain length issues. Chain drops not only directly affect the trolley's ability to move due to loss of power, delaying production, but also pose a risk of debris falling from heights, endangering the lives of on-site workers. Meanwhile, if a chain breaks, and the fallen chain can be found and repaired in time, production can continue. However, if the chain cannot be found, a spare part must be waited for, which not only prolongs the waiting time but also increases the cost of replacing the chain. Therefore, a chain-prevention device is needed to prevent the risk of objects falling from heights when the chain falls off, while also being able to collect the fallen chain for timely repair and installation, saving waiting time and maintaining production order. Summary of the Invention

[0003] The technical problem this invention aims to solve is to provide a high-altitude track anti-chain trolley. This prevents the trolley from falling from a height due to chain breakage during high-altitude operation, thus avoiding safety accidents. Simultaneously, it effectively collects broken chains for timely repair and reinstallation on the trolley, saving time waiting for spare parts and maintaining production.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a high-altitude track anti-chain trolley, including a vehicle frame, an electric motor fixedly installed in the vehicle frame, the electric motor driving the transmission shaft to rotate, the vehicle frame being connected to the front wheel axle and the rear wheel axle of the trolley respectively through support columns, two transmission gears of the same specification, transmission gear one and transmission gear two, are sleeved on the transmission shaft, a front wheel gear is sleeved on the front wheel axle of the trolley, and a rear wheel gear is sleeved on the rear wheel axle of the trolley, transmission gear one drives the front wheel gear through a transmission chain, and transmission gear two drives the rear wheel gear through a transmission chain, the vehicle frame being connected to a suspended storage tray through a telescopic rod, and a sensor is installed on the storage tray.

[0005] A further improvement to the technical solution of the present invention is that: the storage tray is provided with upward baffles on all four sides.

[0006] A further improvement of the technical solution of the present invention is that a groove for storing the transmission chain is provided on the bottom inner side of the front end baffle of the storage tray.

[0007] A further improvement to the technical solution of the present invention is that an electromagnet is provided on the outer side of the front baffle of the storage tray.

[0008] A further improvement of the technical solution of the present invention is that: two front telescopic rods for connecting the storage tray are provided at the front end of the vehicle body bracket, and two rear telescopic rods for connecting the storage tray are provided at the rear end of the vehicle body bracket.

[0009] A further improvement of the technical solution of the present invention is that the shortest retracted size of the front telescopic rod and the longest extended size of the rear telescopic rod are the same.

[0010] A further improvement of the technical solution of the present invention is that the top end of the telescopic rod is hinged to the storage tray (5).

[0011] The technological advancements achieved by this invention through the adoption of the above technical solutions are as follows: By setting two gears on the motor drive shaft, simultaneously driving the front and rear wheels of the trolley to rotate, even if one chain breaks, the wheel connected to that chain changes from a drive wheel to a follower wheel, and the motor can still drive the gear on the other chain to rotate, providing power to the trolley and preventing it from stopping on the spot and halting production. A storage tray is suspended by a telescopic rod connected to the vehicle frame. With the assistance of a sensor on the storage tray, when the sensor detects a chain falling onto the tray, the telescopic rod extends and retracts, causing the tray to tilt. Using gravity, the chain that has fallen into the tray moves to the edge baffle. By setting a groove inside the baffle and an electromagnet outside the baffle, the chain can be firmly fixed in the storage groove within the baffle, achieving effective chain storage and preventing it from moving back and forth within the storage tray during mid-air movement, thus avoiding unnecessary vibration. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Among them, 1. Body bracket, 2. Drive shaft, 3. Rear wheel gear, 4. Front wheel gear, 5. Storage tray, 51. Rear telescopic rod, 52. Front telescopic rod, 53. Groove, 54. Electromagnet. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to embodiments:

[0016] like Figure 1 The diagram shows a structural schematic of a high-altitude track anti-chain trolley. The main body of the high-altitude track trolley is the vehicle frame 1. To simplify the high-altitude operation structure, the frame is a hollow frame. The trolley's power source, the electric motor, is fixed to the vehicle frame 1. The front and rear wheels of the trolley are also directly mounted on the vehicle frame 1. The electric motor drives the drive shaft 2 to rotate. Two identical transmission gears, namely transmission gear one and transmission gear two, are mounted on the drive shaft 2. A front wheel gear 4 for transmission is mounted on the front wheel axle, and a rear wheel gear 3 is mounted on the rear wheel axle. Transmission gear one drives the front wheel gear 4 via a transmission chain, and transmission gear two drives the rear wheel gear 3 via a transmission chain. This configuration, with one drive shaft and two chains driving two gears, ensures that even if the chain driving the front or rear wheel breaks, the broken wheel will only become a follower wheel, while another chain continues to drive the wheel, providing power. The trolley can still move normally, maintaining production operations.

[0017] The vehicle body bracket 1 is connected to the bottom of the bracket via four telescopic rods to suspend the storage tray 5. Two front telescopic rods 52 are located at the front end of the vehicle body bracket 1, connecting to the storage tray 5, and two rear telescopic rods 51 are located at the rear end of the vehicle body bracket 1, connecting to the storage tray 5. The front telescopic rods 52 at their shortest retracted position and the rear telescopic rods 51 at their longest extended position are the same. During normal suspension, the front telescopic rods 52 remain fully retracted, and the rear telescopic rods 51 remain fully extended to ensure the suspended storage tray 5 is horizontal. The tops of the telescopic rods are hinged to the storage tray 5 via shafts. The storage tray 5 has upward-facing baffles on all four sides and is equipped with vibration and weight sensors. A groove 53 for storing the drive chain is located on the bottom inner side of the front baffle of the storage tray 5, and an electromagnet 54 is located on the outer side of the front baffle. The entire vehicle is connected to a PLC control system. When the chain falls off, the broken chain falls into the storage tray 5. When the vibration sensor and weight sensor detect the change simultaneously, the PLC system controls the front telescopic rod 52 to change from a retracted state to an extended state, and the rear telescopic rod 51 to change from an extended state to a retracted state. This causes the storage tray 5 to change from a horizontal state to an inclined state with the front lower than the back. Under the action of gravity, the broken chain in the storage tray 5 will move towards the front baffle at the edge of the storage tray 5. At the same time, the PLC system controls the electromagnet 54 to open, and the broken chain will enter the groove 53 on the bottom side of the front baffle. It will be attracted by the electromagnet 54 and tightly fixed in the groove 53. This avoids the broken chain moving back and forth in the storage tray due to inertia when the trolley is running in mid-air, causing unnecessary vibration. At the same time, the storage position is fixed, and the broken chain can be directly found in the groove during maintenance. This invention can collect fallen broken chains, effectively eliminating the risk of falling objects from heights caused by chain detachment, and can also collect fallen chains for timely repair and installation, saving waiting time and maintaining production order.

[0018] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A high-altitude track anti-chain trolley, comprising a vehicle frame (1), wherein an electric motor is fixedly installed in the vehicle frame (1), the electric motor drives a transmission shaft (2) to rotate, and the vehicle frame (1) is connected to the front wheel axle and the rear wheel axle of the trolley respectively through support columns, characterized in that: Two identical transmission gears, transmission gear one and transmission gear two, are mounted on the drive shaft (2). A front wheel gear (4) is mounted on the front wheel axle of the trolley, and a rear wheel gear (3) is mounted on the rear wheel axle of the trolley. Transmission gear one drives the front wheel gear (4) via a transmission chain, and transmission gear two drives the rear wheel gear (3) via a transmission chain. The vehicle body bracket (1) is connected to the suspension storage tray (5) via a telescopic rod. A sensor is installed on the storage tray (5). Upward baffles are installed on all four sides of the storage tray (5). 5) A groove (53) for storing the transmission chain is provided on the bottom inner side of the front baffle; an electromagnet (54) is provided on the outer side of the front baffle of the storage tray (5); two front telescopic rods (52) for connecting the storage tray (5) are provided at the front end of the vehicle body bracket (1), and two rear telescopic rods (51) for connecting the storage tray (5) are provided at the rear end of the vehicle body bracket (1); the front telescopic rod (52) has the same length when it is at its shortest retraction and the rear telescopic rod (51) has the same length when it is at its longest extension; the top of the telescopic rod is hinged to the storage tray (5).

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