CN210769933U

CN210769933U - Novel brake chamber with normal braking function in water

Info

Publication number: CN210769933U
Application number: CN201921157382.3U
Authority: CN
Inventors: 盛中林; 王雪群
Original assignee: JIAXING SHENGDING MACHINERY CO Ltd
Current assignee: JIAXING SHENGDING MACHINERY CO Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-06-16
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a novel brake chamber that normal braking function has in aquatic, including the casing, be provided with the involucra in the casing, be connected with push rod dish subassembly on the involucra, driving braking chamber and return chamber are cut apart into with the casing to the involucra, driving braking chamber and return chamber are provided with the first air inlet and the second air inlet that are used for connecting the air supply respectively, the utility model discloses a to return spring chamber institutional advancement, save return spring, utilize the atmospheric pressure return to replace the return spring return, the return is more reliable rapidly, can make more clean in the brake chamber simultaneously, avoids the entering of dust and water, ensures that brake performance is unchangeable when wading into water and traveling.

Description

Novel brake chamber with normal braking function in water

Technical Field

The utility model belongs to the brake chamber field, more specifically the novel brake chamber that has normal braking function in aqueous that says so relates to.

Background

The brake air chamber is also called a slave cylinder and has the function of converting the pressure of compressed air into mechanical force for rotating a brake cam shaft to realize braking action.

As shown in fig. 1, the brake chamber is divided into a return spring chamber a and a service brake chamber B by the membrane, a push rod 9 extends from the front end of the return spring chamber a, an air inlet 7 is arranged on the service brake chamber B, an exhaust hole 8 is formed in the return spring chamber a, compressed air enters the service brake chamber B from the air inlet during braking, the exhaust hole exhausts the air in the return spring chamber a, the service brake chamber B exhausts the air when the brake is released, the return spring resets to increase the volume of the return spring chamber a, external air directly enters the return spring chamber a from the exhaust hole, more dust and impurities are in the return spring chamber a, normal use of the return spring chamber a is affected, and even corrosion is caused to internal parts.

Meanwhile, the structure determines that when the wading vehicle runs in the water, because the return spring cavity A is filled with water, the motion resistance of the push rod is quite large, the output braking force of the push rod is greatly reduced, and even the situation of brake failure can be generated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a through to return spring chamber institutional advancement, save return spring, utilize the atmospheric pressure return to replace the return spring return, the return is reliable more rapidly, can make more clean in the brake chamber simultaneously, avoids the entering of dust and water, guarantees that brake performance is unchangeable when wading into water and traveling.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel brake chamber that aquatic has normal braking function, includes the casing, is provided with the involucra in the casing, is connected with push rod dish subassembly on the involucra, service braking chamber and return chamber are cut apart into with the casing to the involucra, service braking chamber and return chamber are provided with first air inlet and the second air inlet that is used for connecting the air supply respectively.

And the first air inlet and the second air inlet are further connected with a two-position five-way valve, and the two-position five-way valve is connected with an air source.

Further the casing includes protecgulum and hou gai, is provided with the clamp between protecgulum and the back lid, and the edge of involucra is fixed in between protecgulum and the back lid.

And the push rod disc component comprises a push rod and a push rod disc, the push rod disc is fixed on the leather membrane, and the push rod is connected with the push rod disc and extends out of the return cavity.

Further be provided with guide part on the protecgulum, guide part is including being fixed in on the protecgulum, sets up the through-hole that supplies the push rod to stretch out on the guide part, and guide part corresponds through-hole department and is provided with along the guide cylinder of push rod axial extension.

Compared with the prior art, the beneficial effects of the utility model are that: during braking, the first air inlet is filled with compressed air, the second air inlet exhausts air to push the membrane to move, and the push rod disc assembly performs braking; when the braking is released, the second air inlet is filled with compressed air, the first air inlet exhausts air to push the leather membrane to move reversely, the push rod disc component releases the braking, the compressed air is used for actively supplying pressure during the braking or the braking, so that clean compressed air can be introduced into the service braking cavity and the return cavity instead of being directly communicated and contacted with the outside air, particularly, when the wading vehicle runs, the compressed air is used for actively supplying pressure to the return cavity during the braking releasing process, water can be prevented from entering the return cavity, and parts in the return cavity and the service braking cavity are effectively protected.

Drawings

FIG. 1 is a schematic diagram of a single brake chamber of the prior art;

FIG. 2 is a schematic structural view of a novel brake chamber with a normal braking function in water according to the present invention;

FIG. 3 is a schematic view of the valve state during braking of the present invention;

fig. 4 is the valve state diagram of the present invention when the brake is released.

Reference numerals: 1. a front cover; 2. a guide member; 21. a main body; 22. a guide cylinder; 3. clamping a hoop; 4. a skin membrane; 5. a rear cover; 6. a pusher tray; 71. a first air inlet; 72. a second air inlet; 9. a push rod; 21. a coil; 22. a pilot valve; 23. a piston.

Detailed Description

The embodiment of the novel brake chamber with normal braking function in water according to the present invention will be further explained with reference to fig. 2 to 4.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The utility model provides a novel brake chamber that aquatic has normal braking function, includes the casing, is provided with involucra 4 in the casing, is connected with push rod dish subassembly on the involucra 4, service braking chamber B and return chamber C are cut apart into with the casing to involucra 4, service braking chamber B and return chamber C are provided with first air inlet 71 and the second air inlet 72 that is used for connecting the air supply respectively.

Referring to fig. 2, in the driving process, if braking is needed, the air source fills compressed air into the driving brake cavity B through the first air inlet 71, the second air inlet 72 is opened to exhaust air, the membrane 4 and the push rod disc assembly move leftwards to perform braking operation, when braking is released, the air source fills compressed air into the driving brake cavity B through the second air inlet 72, the first air inlet 71 is opened to exhaust air, the membrane 4 and the push rod disc assembly move rightwards to perform braking release operation, when braking and braking release are performed, the compressed air is respectively filled into the driving brake cavity B and the return cavity C, the driving brake cavity B and the return cavity C can be isolated from outside air, water entering during wading driving is avoided, the compressed air is filtered clean air, and components in the driving brake cavity B and the return cavity C can be better protected, the service life of the device is prolonged.

In this embodiment, the first air inlet 71 and the second air inlet 72 are preferably connected to a two-position five-way valve, the two-position five-way valve is connected to an air source, the two-position five-way valve is shown in fig. 3 and 4, and mainly includes a coil 21, a pilot valve 22 and a piston 23, the air port 11 is connected to the air source, and the air port 12 is connected to the first air inlet 71; the air port 13 is connected with the second air inlet 72, and the

air ports

14 and 15 are emptied or emptied after passing through a connecting pipeline, and the

air ports

14 and 15 can be connected with corresponding dust screen structures; during braking, as shown in fig. 3, the air source enters the service braking chamber B through the air port 11 and the air port 12, at this time, the air port 13 is communicated with the air port 14, the air in the return chamber C is discharged through the air port 14, so that the braking process is realized, and when the braking is released, as shown in fig. 4, the air source enters the second air inlet 72 through the air port 11 and the air port 13, at this time, the air port 12 is communicated with the air port 15, the air in the service braking chamber B is discharged through the air port 15, so that the braking release process is realized.

The preferred casing of this embodiment includes front cover 1 and back lid 5, is provided with clamp 3 between front cover 1 and back lid 5, and the edge of involucra 4 is fixed between front cover 1 and back lid 5.

Preferably, the push rod disc assembly comprises a push rod 9 and a push rod disc 6, the push rod disc 6 is fixed on the membrane 4, the push rod 9 is connected with the push rod disc 6 and extends out of the return cavity C, and the push rod disc 6 is in large-area contact with the membrane 4 to support the middle part of the membrane 4 so as to enable the membrane to move left and right smoothly.

The preferred of this embodiment be provided with guide part 2 on protecgulum 1, guide part 2 is including being fixed in protecgulum 1, and the last through-hole that supplies push rod 9 to stretch out of seted up of guide part 2, and guide part 2 corresponds through-hole department and is provided with along push rod 9 axial extension's guide cylinder 22.

As shown in fig. 2, in the present embodiment, when braking and releasing braking, the push rod disk assembly and the coating 4 move simultaneously, at this time, the push rod 9 slides in the through hole and the guide cylinder 22, and the guide cylinder 22 gives a guiding function to the push rod 9, so as to prevent the push rod 9 from tilting during sliding.

The preferred guide part 2 comprises a disc-shaped main body 21, a through hole is formed in the main body 21, a preferred guide cylinder 22 and the main body 21 are integrally formed and formed by extending the main body 21 to the inside of the return cavity C, the strength of the guide cylinder 22 is enhanced, the guide cylinder cannot extend out of a brake air chamber, the occupied space is reduced, and collision damage is avoided.

The push rod 9 is sealed with the main body 21 and the guide cylinder 22.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel brake chamber that aquatic has normal braking function, includes the casing, is provided with the involucra in the casing, is connected with push rod dish subassembly, its characterized in that on the involucra: the shell is divided into a service braking cavity and a return cavity by the membrane, and the service braking cavity and the return cavity are respectively provided with a first air inlet and a second air inlet which are used for being connected with an air source.

2. The novel underwater brake chamber with normal braking function as claimed in claim 1, wherein: the first air inlet and the second air inlet are connected with a two-position five-way valve, and the two-position five-way valve is connected with an air source.

3. The novel underwater brake chamber with normal braking function as claimed in claim 2, wherein: the casing includes protecgulum and hou gai, is provided with the clamp between protecgulum and the back lid, and the edge of involucra is fixed in between protecgulum and the back lid.

4. A novel brake chamber with normal braking function in water as claimed in claim 3, wherein: the push rod disc component comprises a push rod and a push rod disc, the push rod disc is fixed on the leather membrane, and the push rod is connected with the push rod disc and extends out of the return cavity.

5. The novel underwater brake chamber with normal braking function as claimed in claim 4, wherein: the front cover is provided with a guide part, the guide part comprises a guide sleeve fixed on the front cover, a through hole for the push rod to extend out is formed in the guide part, and a guide cylinder extending along the axial direction of the push rod is arranged at the position, corresponding to the through hole, of the guide part.