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Brake cylinder device and disc brake device

A technology of brake cylinder and cylinder body, applied in the direction of brake type, railway brake system, axial brake, etc.

Active Publication Date: 2015-04-29
NABLESCO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it becomes a major limitation factor for downsizing the diameter dimension of the rear side of the cylinder body in which the piston is arranged.

Method used

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  • Brake cylinder device and disc brake device
  • Brake cylinder device and disc brake device
  • Brake cylinder device and disc brake device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0063] figure 1 It is a side view of the disc brake device 1 according to the embodiment of the present invention viewed from the axle direction. in addition, figure 2 is viewed from above figure 1 A plan view of the disc brake device 1 shown. figure 1 and figure 2 The shown disc brake device 1 includes: a brake cylinder device 2; a caliper main body 11 equipped with the brake cylinder device 2 and mounted to a vehicle in a manner capable of relative displacement in the axle direction with respect to a vehicle main body 100 Main body 100; a pair of lining plates (12, 12), which are brake pad holding parts, for respectively holding a pair of brake pads (13, 13) as brake pads.

[0064] A pair of brake pads ( 13 , 13 ) are attached to the caliper main body 11 via a backing plate 12 . Furthermore, the disc brake device 1 pinches the axle side that rotates in conjunction with the rotation of the wheels (not shown) of the railway vehicle by the pair of brake pads ( 13 , 13 ) ...

no. 2 approach

[0147] Next, a brake cylinder device 3 according to a second embodiment of the present invention will be described. Figure 22 It is a sectional view of the brake cylinder device 3 of the second embodiment. Figure 22 The shown brake cylinder device 3 is provided as a brake cylinder device equipped in the disc brake device 1 similarly to the brake cylinder device 2 of the first embodiment. In addition, in Figure 22 In FIG. 3 , the cross-section is not shown but the outer diameter is shown for some components of the brake cylinder device 3 .

[0148] Like the brake cylinder device 2 of the first embodiment, the brake cylinder device 3 includes a cylinder main body 20, a brake output portion 21, a piston 50, a piston spring 23, a threaded shaft 24, a guide pipe 25, a thrust spring 26, and a clutch nut. 27. Front stopper 28, first clutch 29, adjustment stopper 30, adjustment spring 31, second clutch 32, adjustment sleeve 33, spring stopper 34, thrust spring guide 38, bearing 4...

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Abstract

A brake cylinder device is provided that includes a clearance adjustment mechanism, can be made less likely to be affected by the surrounding environment such as temperature and humidity at low cost, and also can achieve a reduction in the radial dimension of a cylinder body. A threaded shaft 24 connected to a brake output portion 21 is accommodated inside a guide tube 25 attached to a piston 22. A pusher spring 26 biases the threaded shaft 24 in the braking direction. With respect to a clutch nut 27 threadably engaged with the tip of the threaded shaft 24, a front stopper 28 is disposed on the front side and a first clutch 29 and a second clutch 32 are disposed on the rear side so as to be capable of coming into contact with the clutch nut 27. Adjustment stoppers 30 are disposed so as to be movable relative to the clutch nut 27 and the guide tube 25 along the axial direction of the threaded shaft 24, and its movable range is restricted with respect to the cylinder body 20. An adjustment spring 31 is in contact, at a first end thereof, with the second clutch 32 to which the adjustment stoppers 30 are fixed, and biases the clutch nut 27 toward the anti-braking direction.

Description

technical field [0001] The present invention relates to a brake cylinder device having a clearance adjustment mechanism for automatically adjusting the distance between a brake released state and a brake action position, and a disc brake device having the brake cylinder device. gap. Background technique [0002] A brake cylinder device disclosed in Patent Document 1 is known, which has a gap adjustment mechanism for automatically adjusting the brake cylinder from the state where the brake is released to the brake operating position (position where braking force can be generated). gap. In the brake cylinder device disclosed in Patent Document 1, there are provided a push rod having a concave-convex surface formed on its outer surface, and a guide member movable together with the push rod. In addition, an O-ring engaged with the uneven surface is arranged in the space between the guide member and the pressure rod. When a force greater than a predetermined value is applied to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/56B61H15/00F16D55/224F16D65/14F16D65/18
CPCF16D65/56F16D55/2245F16D65/28F16D2121/02
Inventor 大野智也小泽洋一郎中村丈一
Owner NABLESCO CORP
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