JP3320814B2 - Braking system for suspension type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device for suspending a suspended vehicle suspended on an elevated track and moving along the track by a rope pulling force or the like at a station or the like.

[0002]

2. Description of the Related Art Conventionally, as a brake device for a suspension type vehicle, one having the structure shown in FIG. 5 is generally used.

[0003] To explain this, 1 is a suspension type vehicle,
Suspended frames 2, 2 are provided on the upper left and right sides of the vehicle 1, and the suspended frames 2, 2 are suspended from an elevated track (hereinafter simply referred to as a track) 3 via running wheels 4.
The track 3 is driven by driving means such as a tow rope (not shown).
It can move along.

[0004] The brake device 5 is provided as ground equipment at a station or the like where the vehicle 1 is stopped.

The brake device 5 includes a brake cylinder (usually an air cylinder) 6 and a brake cylinder 6.
A brake link 7 that is driven by the motor to perform a rotary motion;
A brake plate 8 is attached to the tip of the brake link 7. The brake plate 8 is pressed against a friction plate 9 provided on a side surface of the vehicle 1 to apply a braking force (the vehicle 1 stops). Is configured.

[0006]

However, such a conventional suspension system 5 for a suspended vehicle has the following disadvantages.

Since the brake force is generated by the cylinder thrust of the brake cylinder 7, if a failure or abnormality such as damage to the cylinder piping occurs, the brake does not work, and it is necessary to consider a redundant system from the viewpoint of fail-safe performance. Because of this, the configuration was complicated.

[0008] In addition, the vehicle 1 is located anywhere in the braking section.
In principle, when the brake section is long, the brake device 5 must be installed at a plurality of locations, which increases the equipment cost.

Therefore, the present invention has a fail-safe function, and can reliably provide a braking action even in the event of a failure or abnormality.
In addition, the present invention provides a brake system for a suspension type vehicle, in which the equipment is simple and the cost is low even when the brake section is long.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a vehicle-side brake is provided on a suspension type vehicle suspended from and supported on an elevated track, and the track-side brake is mounted on the elevated track. Is provided so as to be able to ascend and descend between a brake position where it is pressed against the vehicle-side brake body by its own weight and exerts a braking force, and a brake release position where the brake force is released by separating upward from the vehicle-side brake body and releasing the braking force, Further, the track-side brake body is provided with an elevating means for elevating and lowering between the brake position and the brake release position.

[0011]

According to the above construction, since the track-side brake body is pressed against the vehicle-side brake body by its own weight to generate a braking force, the brake operation is reliably performed even when the lifting / lowering means fails or is abnormal, and the fail-safe function is provided. Is fulfilled.

Further, by providing the track-side brake body across the brake section, the braking action is performed anywhere in the brake section, so that the equipment can be simplified even when the brake section is long.

[0013]

【Example】

First Embodiment (See FIGS. 1 to 3) Reference numeral 11 denotes a suspension type vehicle, and suspension frames 12, 12 are provided on the upper left and right sides of the vehicle 11 as in the prior art, and the suspension frames 12, 12 And is movable along the track 14 by a rope pulling force or the like.

A vehicle-side brake body 16 is provided on each of the suspension frames 12, 12 at the center of the left and right traveling frames 15, 15 on which traveling wheels 13 are mounted.

The vehicle-side brake body 16 has brake surfaces 16a and 16b on both upper and lower sides.
a protrudes above the suspension frames 12, 12,
It is supported by a pair of upper and lower links 17 and 18 so as to be vertically movable.

The upper link 17 and the traveling frame 15
And a spring 19 (see FIG. 1) is provided between the lower brake surface 16b and the track 14 when the lower brake surface 16b and the raceway 14 are pushed up by the spring 19 in a state where a pressing force is not applied to the vehicle side brake body 16. A gap is formed between the travel guide surface 14a.

On the other hand, on the track 14, on both sides of the brake section, on the left and right sides of the upper surface, air cylinders 21 as elevating means are attached downward via brackets 20.
At the lower end (rod end) of each of the air cylinders 21 and 21, an elongated plate-shaped track-side brake body 22 is provided.
Is mounted horizontally so as to face the upper brake surface 16a.

In this manner, the track-side brake body 22 can be moved up and down by the expansion and contraction of the air cylinders 21. When the cylinder is contracted (brake body is raised), it separates from the upper brake surface 16 a of the vehicle-side brake body 16 and the cylinder extends ( It is configured to be pressed against the brake surface 16a in a state where the brake body is lowered.

The air cylinders 21 are contracted by supplying air to the rod-side chamber. When the air in the rod-side chamber is released, the air cylinders 21 are provided in the weight of the track-side brake body 22 and the head-side chamber. It is extended by the force of the spring.

On the upper surface of the track, air cylinders 21.
Are provided side by side with the link mechanisms 23. As shown in FIG. 3, the link mechanism 23 includes a bracket 24 fixed to the track 14, a pair of upper and lower links 25, 25 having one end pivotally supported by the bracket 24,
And a connecting frame 26 connected to the other end of each of the rails 5 and 25.
2 is pin-connected.

The link mechanisms 23 are connected to the air cylinder 2
1 moves up and down in conjunction with the expansion and contraction operation of the brake cylinder 1 to support the load acting on the track-side brake body 22 in the longitudinal direction of the brake body to prevent the air cylinders 21 from being damaged.

Next, the operation will be described.

When the brake is released, the air cylinders 21.
Is supplied to the rod-side chamber, the cylinders 21 contract, and the track-side brake body 22 rises and separates from the vehicle-side brake body 16, so that no braking force is generated.

On the other hand, when the vehicle 11 is stopped, air is released from the rod-side chamber of the air cylinders 21 to reduce the cylinders 21 as shown by the phantom line in FIG. It is pressed against the upper brake surface 16a of the side brake body 16.

Then, the vehicle-side brake body 16 descends, and its lower brake surface 16b presses against the traveling guide surface 14a of the track 14, and the upper and lower brake surfaces 16a, 16a
The braking action is achieved by the frictional resistance between b and the track side brake body 22 and the traveling guide surface 14a.

As described above, since the track brake 16 is pressed against the vehicle brake 16 by its own weight to generate a braking force, the so-called negative brake structure causes damage to the piping of the air cylinders 21. Even in the event of a brake, the braking action is reliably performed.

Further, by providing the track-side brake body 22 across the brake section, the braking action is performed anywhere in the brake section. Therefore, even when the brake section is long, the track-side brake body 22 is lengthened accordingly. The equipment is simple.

Second Embodiment (See FIG. 4) Only differences from the first embodiment will be described.

In the first embodiment, since the track-side brake body 22 is basically pressed against the vehicle-side brake body 16 only by its own weight, the braking force may be excessive or insufficient depending on the weight or load of the vehicle 11. there is a possibility.
Therefore, the second embodiment employs the following configuration as a measure against this point.

Between the air source and each air cylinder 21.
An electromagnetic switching type main brake control valve 27 is provided which is operated to switch between a brake position a and a brake release position b.

A first pressure regulating valve 28 for setting the head side pressure is provided in a pipe connecting the main brake control valve 27 and the head side chamber 21a, while a pipe connecting the main brake control valve 27 and the rod side chamber 21b. On the road, a second pressure regulating valve 29 for setting the rod side pressure, and an electromagnetic switching type auxiliary brake control valve 30 which switches and operates between a steady position A and an adjustment position B
And an exhaust valve 31 are provided.

Further, another inlet port of the auxiliary control valve 30 is connected to an air source via a third pressure regulating valve 32 for setting a rod side pressure.

In the drawing, 33 are springs provided in the head-side chambers 21a of each air cylinder 21, and 34, 34 are check valves provided in parallel with the first and second pressure regulating valves 28, 29.

In this configuration, during normal braking operation, the main brake control valve 27 is set to the brake position A, and the auxiliary brake control valve 30 is set to the steady position A.

In this state, the air in the rod side chamber 21b of each air cylinder 21 is released from the exhaust valve 31 to the atmosphere, while the air from the air source is released from the main brake control valve 27,
Are supplied to the head-side chambers 21a of the air cylinders 21 via the first pressure regulating valve 28.

As a result, each of the air cylinders 21 is extended, and the track-side brake body 22 is pressed against the vehicle-side brake body 16 by its own weight and air pressure to generate a braking force.

Next, when the main brake control valve 27 is switched to the brake release position B, air from the air source is supplied to the control valve 27, the second pressure regulating valve 29, the auxiliary control valve 30, and the exhaust valve 31.
Are supplied to the rod-side chambers 21b of each of the air cylinders 21. The air in the head side chambers 21a is discharged from the main control valve 27 to the atmosphere through the check valve.

As a result, each of the air cylinders 21 shrinks, the track-side brake body 22 separates from the vehicle-side brake body 16, and the braking force is released.

On the other hand, if the braking force is excessive during the operation of the brake, the auxiliary brake control valve 30 is set to the adjustment position B.

Then, the air from the air source is supplied to the rod-side chambers 21b of the air cylinders 21 through the control valve 30 and the exhaust valve 31, and the cylinder pressure is reduced by the air pressure. Power is weakened.

Thus, the braking force can be properly adjusted according to the vehicle weight, load, and the like.

In the above-described embodiment, the track-side brake body 22 is moved up and down substantially vertically. However, the brake body 22 may be moved obliquely up and down by a link mechanism.

Also, a configuration may be adopted in which the track side brake body 22 is supported only by the air cylinders 21 without using such a link mechanism (the link mechanism 23 in the above embodiment).

On the other hand, a hydraulic cylinder may be used in place of the air cylinder as a means for raising and lowering the track-side brake body 22, or a screw shaft is vertically protruded from the brake body 22 and screwed to this screw shaft. Alternatively, a configuration may be adopted in which the female screw body is driven by a motor (a hydraulic motor or an electric motor) to move the track-side brake body 22 up and down.

[0045]

As described above, according to the present invention, a so-called negative brake structure is used in which the track-side brake body is basically pressed against the vehicle-side brake body by its own weight to generate a braking force. In the event of a failure or abnormality, the braking action is reliably performed. That is, the fail-safe function is performed, and the safety is improved.

Further, by providing the track-side brake body across the brake section, the braking action is performed anywhere in the brake section. Therefore, even if the brake section is long, the equipment can be simplified and the equipment cost can be reduced. Can be.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 1;

FIG. 4 is a pneumatic circuit diagram showing a second embodiment of the present invention.

FIG. 5 is a front sectional view for explaining a conventional technique and its problems.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Suspended vehicle 14 Elevated track 16 Vehicle side brake body 22 Track side brake body 21 Air cylinder as elevating means of track side brake body

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Teruhisa 5007 Itozakicho, Mihara City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd.Mihara Works Co., Ltd. (56) References JP-A-4-368274 (JP, A) JP-A-3-95021 (JP, A) JP-A 5-82737 (JP, U) JP-A 4-83876 (JP , U) Actual opening 50-65111 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61H 9/02; 7/12 B62B 13/06; 3/00-3/02

Claims (1)

(57) [Claims] 1. A vehicle-side brake body is provided on a suspension type vehicle suspended and supported along an elevated track, and a track-side brake body is provided on the elevated track, and the vehicle-side brake body is provided by its own weight. The track-side brake body is provided so as to be able to ascend and descend between a brake position where the brake force is exerted when pressed against the vehicle and a brake release position where the brake force is released by separating upward from the vehicle-side brake body and releasing the brake force. A brake device for a suspension type vehicle, comprising: lifting means for raising and lowering between the brake position and the brake release position.