JPH0622632U - Emergency brake for single-rail carrier - Google Patents

Abstract

(57) [Summary] [Purpose] If the brake built into the hydraulic motor for driving a single rail transporter should break down and run out of control, stop the vehicle safely and securely. [Structure] An electromagnetic brake 5 is provided on the lower wheel shaft of one of the two wheel units 4 provided on the truck of the single-rail carrier. [Effect] It works as a side brake when the transporter is not activated, and as an emergency brake by turning off the power during a runaway, so that the vehicle can be stopped safely and securely.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This plan relates to the emergency brake of a transporter for personnel transport, which was developed from the single-rail agricultural transporter used for transporting fruits, fertilizers, chemicals, etc., installed on steep slopes such as orchards.

[0002]

[Prior art]

 As shown in Fig. 7, a single-rail carrier that has been conventionally used for agriculture is provided with drive wheels on the vehicle equipped with the leading engine, and the drive force is transmitted to and from the engine by pulleys and gears. I got it and towed the cart. The weight capacity of the carrier is about 200 kg to 300 kg, and the equipped brake is a centrifugal clutch system or a side brake system that uses one of the output shafts to reduce the rotational force of the engine. It was about.

[0003]

[Problems to be solved by the device]

 Due to land acquisition problems, environmental problems, etc., the recent construction of power transmission lines has to select steep mountainous areas, and the construction site of the steel tower is one hour or more than the dormitory constructed on a flat land. , The need to climb mountain trails has come up. It takes three to four years to complete the construction of the power transmission line from the survey stage to completion, but during that time, commuting more than two hours daily to the commute is not only a waste of time, but also physical fatigue and arrival. This was not a particularly favorable situation when performing work at a high place on the tower later.

Therefore, it is planned to carry out the personnel transportation by the single-rail carrier which is suitable for the steep mountain transportation, and the development of the personnel is being promoted. Including it, driving more than one ton and stopping it safely is necessary to protect human life from danger.

Therefore, hydraulically driven wheels are provided not only on a drive vehicle equipped with an engine, but also on a passenger trolley on which passengers ride, and at the same time, a braking function is provided and a safe state is ensured. By adopting a so-called "safety confirmation type system" that can only enter the operating state unless it has been checked, we have developed a single-rail transporter with safer and more stable running and stopping functions.

This transporting machine adopts a hydraulic drive type, one hydraulic motor 8 is provided for each of the drive vehicle 1 and the passenger carts 2, 3 and the pinion of the drive wheel 9 provided for the hydraulic motor 8 is connected. It engages with the rack 7 of Le and makes forward and backward movements. This hydraulic motor 8 has a built-in brake 10. When pressure oil is not flowing, this brake 10 is working, and the transporter is in a stopped state with 3 brakes 10, but pressure oil is flowing. First, the safety confirmation hydraulic motor 8 has a structure in which the hydraulic motor 8 is rotated after the brake 10 is released. However, in the unlikely event that the brake 10 in the hydraulic motor 8 fails, the limit of the braking function may be exceeded and the transport machine may run out of control.Therefore, it is necessary to provide an emergency brake in such a case. was there.

[0007]

[Means for Solving the Problems]

 Therefore, in this plan, it is dangerous to use the same hydraulic brake, so use an electric brake of another system to handle the brake 10 failure in the hydraulic motor 8 in case of an emergency, and to transport it safely and reliably. It stops the machine.

[0008]

【Example】

 Explaining the example of the present invention in detail, one of the single-railcar transporters that connects the driving vehicle 1 and the passenger trolleys 2 and 3 into one formation and travels on the rail laid from the village side to the mountain side for the purpose of transporting personnel. The wheel unit is provided with an electric emergency brake. The emergency brake 5 is provided on one of the wheel units 4 provided under each chassis.The wheel unit 4 is formed by welding an iron plate to form a frame 41, and a predetermined interval is provided above the frame 41. A small-diameter upper wheel 42 is attached via a subframe 43, and a large-diameter lower wheel 44 (idle wheel) and a brake wheel 46 having a larger diameter pinion 45 are provided below the axis of the upper wheel 42. The shaft 47 of the brake wheel 46 is fitted with the inner driver 67 of the dry negative operation electromagnetic brake 6 provided on the frame 41.

As shown in FIG. 2, the dry type negative operation electromagnetic brake 6 is provided with a boss 48 on a frame 41, and a mounting plate 61 of the electromagnetic brake 6 is fixed to the boss 48 with a bolt 68, so that a coil 62 is energized. Then, a magnetic flux is generated between the field 63 and the armature 64, the armature 64 is attracted by the field 63, the brake disc 65 is released, and the inner driver 67 fitted to the brake disc 65 and the brake wheel 46 rotate. When the electricity is cut off, the magnetic flux is cut off and the armature 64 presses the brake disc 65 with the force of the coil spring 66, the inner driver 67 and the brake wheel 46 fitted to the brake disc 65 are prevented from rotating, and the pinion Since 45 engages rack 7, the haulage machine will stop quickly.

The single rail carrier equipped with the emergency brake works as a side brake when parked at the parking area on the ri side, so it works as a side brake and works together with the built-in brake 10 of the hydraulic motor 8. It's parked with 6 brakes. To start the transporter, as shown in Fig. 2 and Fig. 6, if the main key 11 on the main control panel of the drive vehicle 1 is inserted, electricity will flow to the coil 62 of the electromagnetic brake 6 and the coil spring 66 The armature 64, which was pressed against the brake disc 65 by force and prevented from rotating the brake wheel 46, is attracted to the field 63 side to release the brake disc 65, release the brake, and start the engine 12 at the same time. , The hydraulic pump 13 also rotates to send out the pressure oil, and the start preparation is completed. Workers board the passenger trolley of this carrier, sit on the seat of the passenger trolley, hook the handrails, and wait for the vehicle to start. If all the workers get in, the first worker (driver) will start running if he pushes the "Forward" button on the sub operation panel. The built-in brake of the hydraulic motor automatically works when the hydraulic pressure stops flowing due to a hydraulic system problem.If the built-in brake does not work, press the "emergency stop" button on the sub operation panel, or If you turn off the power by removing the handrail hook and activate the electromagnetic brake, the transporter will stop.

[0011]

[Effect of device]

 By providing the emergency brake of the present invention on the single-rail transporter for transporting personnel, even if the main brake built into the hydraulic motor fails, the runaway of the transporter can be stopped safely and reliably.

[Brief description of drawings]

FIG. 1 is a front view of an emergency brake of the present invention.

FIG. 2 is a sectional view of the emergency brake of the present invention.

FIG. 3 is a right side view of the emergency brake of the present invention.

FIG. 4 is a rear view of the emergency brake of the present invention.

FIG. 5 is a front view of a single track carrier equipped with the emergency brake of the present invention.

FIG. 6 is a circuit diagram of a single rail carrier equipped with the emergency brake of the present invention.

FIG. 7 is a front view of a conventional carrier.

[Explanation of symbols]

 1 Drive vehicle 2 Passenger truck (front) 3 Passenger truck (rear) 4 Wheel unit 5 Emergency brake 6 Dry negative operation electromagnetic brake 7 Rack 8 Hydraulic motor 9 Drive wheel 10 Brake 11 Main key 12 Engine 13 Hydraulic pump 41 Frame 42 Upper wheel 43 Subframe 44 Lower wheel 45 Pinion 46 Brake wheel 47 Shaft 48 Boss 61 Mounting plate 62 Coil 63 Field 64 Armature 65 Brake disc 66 Coil spring 67 Inner driver 68 Bolt

Claims (1)

[Scope of utility model registration request] 1. A single track transporter for driving a driving vehicle 1 and passenger trolleys 2 and 3 into one formation and traveling on a rail laid from the village side to the mountain side for the purpose of transporting personnel. An emergency brake for a single track carrier, characterized in that a dry negative operation electromagnetic brake 6 is provided on the lower wheel shaft of any one of the 4 wheel units 4.