阅读说明：本技术 用于盘式制动器的制动夹钳单元及盘式制动器 (Brake caliper unit for a disc brake and disc brake ) 是由 刘壮 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种制动夹钳单元,其包括一个吊座(1)和两个制动杠杆(2),吊座外形总体呈倒立的“T”型设置,吊座的吊座底部两侧分别设有用于螺栓杆(3)的第一联接接口,制动杠杆外形呈哑铃状设置,制动杠杆中部设有用于螺栓杆的第二联接接口,所述两个制动杠杆能在吊座两侧与吊座通过螺栓杆联接,形成制动夹钳骨架,制动杠杆能以螺栓杆为轴转动,进而带动设置在其上的制动闸片相向或相背运动。本发明的制动夹钳单元缩短了螺栓杆长度,整体结构紧凑,可抵挡雨水风沙的侵蚀和碎石的击打；同时制动夹钳单元重量轻,各部件易于铸造,加工及组装简单,节省了生产工时,降低成本且便于维护；吊座、制动杠杆及螺栓杆占用的安装空间小。(The invention relates to a brake clamp unit which comprises a hanging seat (1) and two brake levers (2), wherein the hanging seat is arranged in an inverted T shape overall, two sides of the bottom of the hanging seat are respectively provided with a first connecting interface for a bolt rod (3), the brake levers are arranged in a dumbbell shape, the middle of each brake lever is provided with a second connecting interface for the bolt rod, the two brake levers can be connected with the hanging seat through the bolt rods on the two sides of the hanging seat to form a brake clamp framework, and the brake levers can rotate by taking the bolt rods as axes to drive brake pads arranged on the brake levers to move in the opposite direction or in the opposite direction. The braking clamp unit shortens the length of the bolt rod, has compact integral structure and can resist the erosion of rainwater, wind and sand and the impact of broken stones; meanwhile, the braking clamp unit is light in weight, each part is easy to cast, and the braking clamp unit is simple to process and assemble, saves production time, reduces cost and is convenient to maintain; the hanging seat, the brake lever and the bolt rod occupy small installation space.)

1. Brake caliper unit, characterized in that it comprises a lifting seat (1) and two brake levers (2), the hanging seat (1) is arranged in a T shape with an inverted overall shape, two sides of the bottom (11) of the hanging seat (1) are respectively provided with a first connecting interface for the bolt rod (3), the brake lever (2) is arranged in a dumbbell shape, the middle part (21) of the brake lever is provided with a second connecting interface for the bolt rod (3), the two brake levers (2) can be connected with the hanging seat (1) at two sides of the hanging seat (1) through bolt rods (3) to form a brake clamp framework, the two brake levers (2) can rotate by taking the bolt rod (3) as an axis, thereby driving the brake pads or brake linings arranged on the two brake levers (2) to move towards or away from each other.

2. A brake caliper unit according to claim 1, characterized in that the brake caliper unit is a brake caliper unit for a disc brake, the first ends of the two brake levers (2) are connected to the brake cylinder (7) and the second ends of the two brake levers (2) are connected to brake pads or linings, respectively, the brake disc of the disc brake is located between the brake pads or linings on the left and right sides, and the two brake levers (2) can be pivoted about the bolt rod (3) and thereby bring the brake pads or linings closer to or farther away from the brake disc under the driving force of the brake cylinder (7).

3. Brake caliper unit according to claim 1, characterized in that the first coupling interface of the hanger base (11) for the bolt shank (3) is designed as a single-layer coupling interface or at least as a double-layer coupling interface for the bolt shank (3) to pass through for coupling with the brake lever (2) forming a brake caliper skeleton.

4. A brake caliper unit according to claim 2, characterized in that brake pad or brake lining brackets are provided on the second ends of the two brake levers (2), respectively, for mounting brake pads or brake linings, and the brake cylinders (7) are used for generating the driving force and transmitting the braking force to the brake pads or brake linings via the brake levers (2).

5. A brake caliper unit according to claim 3, characterized in that the brake lever middle part (21) is designed as a single-bar connection or at least a double-bar connection and is provided with the second coupling interface for the bolt bar (3) to pass through for coupling with the lifting socket (1) forming a brake caliper skeleton.

6. The brake caliper unit according to one of claims 1 to 5, characterized in that the bolt shank (3) passes through a first coupling interface for a bolt shank of the hanger (1) and a second coupling interface for a bolt shank of the brake lever (2) and is coupled with a washer and a nut.

7. Brake calliper unit according to any of claims 1-5, wherein a pad is provided between the lifting seat (1) and the brake lever (2).

8. Brake caliper unit according to one of claims 1 to 5, characterized in that a first cylindrical bushing (4) is provided in the first coupling interface of the hanger for the bolt shank (3).

9. Brake calliper unit according to one of claims 1-5, wherein a second cylindrical bushing (5) is provided in the second coupling interface of the brake lever middle part (21) for the bolt shaft (3).

10. Brake calliper unit according to one of claims 1 to 5, wherein the calliper unit is for a disc brake of a rail transit vehicle.

11. Disc brake, characterized in that it comprises a brake caliper unit according to one of claims 1 to 10.

Technical Field

The invention relates to a brake caliper unit for a disc brake, in particular in the field of rail vehicles, and to a disc brake.

Background

With the rapid development of rail transit vehicles, train bogies present more complex diversity, the requirements on the weight and space of a brake clamp unit are more and more demanding, and the market urgently needs a brake clamp unit with a more compact structure and a lighter weight.

Meanwhile, the hanging seat and the brake lever of the existing brake clamp unit are connected by two longer bolt rods, and the bolt rods are used as key hinge parts between the bolt rods to bear huge hinge force. And the overlong bolt rod is easy to be hit by broken stones or foreign matters and corroded by rainwater, wind and sand, so that hidden troubles exist. In the existing design, an aluminum protective shell and a rubber product are arranged on the periphery of a bolt rod to protect the bolt rod inside the aluminum protective shell. However, because the aluminum protective shell has low strength, in the actual operation process, the aluminum protective shell is still hit by foreign matters to deform and even break, which brings great trouble to the operation and maintenance of vehicles.

Disclosure of Invention

In order to satisfy the market requirements while at the same time solving the disadvantages of the prior art, the object of the invention is to provide a brake caliper unit for a disc brake, in particular in the field of rail vehicles, which both protects the shank of a bolt and increases its reliability and satisfies the requirements of compactness and lightness.

The object is achieved by the following technical solution of a brake caliper unit:

the brake caliper unit comprises a hanging seat and two brake levers, wherein the hanging seat is arranged in an inverted T shape overall, first connecting interfaces for bolt rods are respectively arranged on two sides of the bottom of the hanging seat, the brake levers are arranged in a dumbbell shape, a second connecting interface for the bolt rods is arranged in the middle of each brake lever, the two brake levers can be connected with the hanging seat through the bolt rods on two sides of the hanging seat to form a brake caliper framework, and the two brake levers can rotate around the bolt rods to drive brake pads or brake linings arranged on the two brake levers to move in the opposite direction or in the opposite direction.

In the braking clamp unit, the hanging seat and the braking lever adopt a brand new design, the length of the connecting bolt rod is shortened, the whole structure is compact, and the braking clamp unit can resist the erosion of rainwater, wind and sand and the striking of broken stones; meanwhile, the braking clamp unit is light in weight, and each part is easy to cast, process and assemble, so that the production working hours are effectively saved, the cost is reduced, and the maintenance is convenient.

In the brake caliper unit of the present invention, the mounting space occupied by the hanger and the brake lever and the coupling bolt bar is small, and it is suitable for a case where the space in the bogie is small.

Preferably, the brake caliper unit is a brake caliper unit for a disc brake, first ends of the two brake levers are respectively connected to the brake cylinders, and second ends of the two brake levers are respectively connected to brake pads or brake linings, a brake disc of the disc brake is located between the brake pads or brake linings on the left and right sides, and the two brake levers can rotate around the bolt rod and further drive the brake pads or brake linings to be close to or far away from the brake disc under the driving force of the brake cylinder.

It is further preferred that a brake lining carrier or brake lining carrier for mounting a brake lining or brake lining, which brake cylinder is used for generating the actuating force and transmitting the braking force to the brake lining or brake lining via the brake lever, is provided on the second end of each of the two brake levers.

Preferably, the middle part of the brake lever adopts a double-rod connecting structure, and two sides of the bottom of the hanging seat adopt single-layer connecting interfaces for a bolt rod to pass through so as to form a brake clamp framework, thereby effectively reducing the deflection torque of the brake lever acting on the hanging seat and improving the reliability of the hanging seat.

Preferably, the middle part of the brake lever adopts a single-rod connecting structure, and two sides of the bottom of the hanging seat adopt double-layer connecting interfaces for a bolt rod to pass through so as to form a brake clamp framework, so that the deflection torque of the brake lever acting on the hanging seat is effectively reduced, and the reliability of the hanging seat is improved.

Preferably, the bolt shank passes through the first coupling interface for the bolt shank of the hanger and the second coupling interface for the bolt shank of the brake lever, and is coupled with the washer and the nut.

Furthermore, a gasket is arranged between the hanging seat and the brake lever, so that the hanging seat is prevented from being directly contacted with the brake lever, and the abrasion of the hanging seat and the brake lever is reduced.

Furthermore, a first cylindrical bushing and a second cylindrical bushing are respectively arranged in a first connecting interface and a second connecting interface of the hanging seat and the brake lever, wherein the first connecting interface and the second connecting interface are used for a bolt rod, so that the hanging seat and the brake lever are prevented from directly contacting the bolt rod, and the abrasion of the hanging seat and the brake lever is reduced.

Furthermore, the bolt rod is provided with an axial oil filling hole and a radial oil conveying hole, so that oil can be periodically filled for lubrication, the bolt rod is convenient to maintain, and the abrasion of the bolt rod is reduced.

The brake caliper unit according to the invention is in particular a disc brake for rail vehicles.

The invention also claims a disc brake, in particular for rail transit vehicles, comprising a brake caliper unit according to the invention.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a perspective view of the brake caliper unit of the present invention;

FIG. 2 is a perspective view of a hanger of the brake caliper unit of the present invention;

FIG. 3 is a schematic perspective view of the brake lever of the brake caliper unit of the present invention;

fig. 4 is a schematic partial assembly view of the hanger and brake lever and bolt shaft of the brake caliper unit of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

In one embodiment of the invention, a brake caliper unit for a disc brake, in particular in the field of rail vehicles, is provided, with particular structural reference to fig. 1 to 4, comprising a lifting seat 1 and two brake levers 2. The hanging seat 1 is arranged in an inverted T shape overall, and first connecting ports for the bolt rod 3 are respectively arranged on two sides of the bottom 11 of the hanging seat; the brake lever 2 is arranged in a dumbbell shape, the middle part 21 of the brake lever is provided with a second connecting interface for the bolt rod 3, and the second connecting interface can be connected with the hanging seat 1 through the bolt rod 3 to form a brake clamp framework.

When the brake caliper unit according to the invention is assembled in a disc brake, in particular in a disc brake in the rail vehicle sector, the first ends of the two brake levers 2 are each connected to a brake cylinder 7, for example a piston rod which is articulated to the brake cylinder 7, and the second ends of the two brake levers 2 are each provided with a brake lining carrier or brake lining carrier for mounting brake linings or brake linings. The disc brake has a disc rotor located between left and right brake pads or linings. In the braking process, under the action of the driving force of the brake cylinder 7, the two brake levers 2 can rotate by taking the bolt rods 3 as axes and further drive the brake pads or brake linings to move oppositely, namely approach to the brake disc, and lean against the left side and the right side of the brake disc to implement braking; during the process of braking cancellation, the brake lever 2 can rotate reversely by taking the bolt rod 3 as an axis and further drive the brake pad or the brake lining to move back and forth, namely to be far away from the brake disc.

As shown in fig. 2, the hanging seat 1 is arranged in an inverted T shape, and first connecting ports for the bolt rod 3 are respectively arranged on two sides of the bottom 11 of the hanging seat. In the present embodiment, the first coupling interfaces for the bolt shank on both sides thereof are shown as single-layer coupling interfaces.

As shown in fig. 3, the brake lever 2 is dumbbell-shaped, and in this embodiment, the brake lever middle part 21 is shown as a double-rod connection structure and is provided with a second coupling interface for the bolt rod 3. In the assembled state, the left and right arms of the hanger base 11 are respectively inserted between the double-bar connecting structures of the left and right two-sided two brake levers 2, and the first coupling interface for the bolt bar 3 of the hanger 1 and the second coupling interface for the bolt bar 3 of the brake levers 2 are respectively aligned with each other for insertion of the bolt bar 3.

In an embodiment not shown, the ends of the left and right arms of the hanger base 11 can be designed as double-layer connecting interfaces, and the middle portion 21 of the brake lever can be designed as a single-rod connecting structure. In the assembled state, the single-rod connection of the brake lever 2 is inserted between the double-layer coupling interfaces of the hanger base 11, and the first coupling interface of the hanger base 1 for the bolt rod 3 and the second coupling interface of the brake lever 2 for the bolt rod 3 are respectively aligned with each other for insertion of the bolt rod 3.

The sandwich type connecting structure has the advantages of good stability, high strength and easy assembly, and can effectively reduce the deflection moment of the brake lever acting on the hanging seat and improve the reliability of the hanging seat. The invention is not limited to the three-layer structure mentioned above, but other more or less number of layer structures are possible.

As shown in figure 4, based on the brand-new design of the hanging seat 1 and the brake lever 2, the bolt rod 3 is short in length and compact in structure, and can resist erosion of rainwater, wind and sand and impact of broken stones.

In this embodiment, a gasket 6 is disposed between the hanging seat 1 and the brake lever 2, so as to prevent the hanging seat 1 from directly contacting the brake lever 2, and reduce the wear of the hanging seat 1 and the brake lever 2.

In this embodiment, a first cylindrical bushing 4 is disposed in the first coupling interface of the hanging seat 1, and a second cylindrical bushing 5 is disposed in the second coupling interface of the brake lever 2, so as to prevent the hanging seat 1 and the brake lever 2 from directly contacting the bolt rod 3, and reduce the wear of the hanging seat 1 and the brake lever 2.

In the embodiment, the bolt rod 3 is provided with the axial oil filling hole and the radial oil conveying hole, so that oil can be periodically filled for lubrication, the maintenance is convenient, and the abrasion of the bolt rod 3 is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

The individual features of the individual claims or of the individual features specified in the claims can be combined with one another as far as the resulting technical solution is technically feasible.

List of reference numerals:

1 hanging seat

11 bottom of hanging seat

2 brake lever

21 brake lever middle part

3 bolt bar

4 first cylindrical bushing

5 second cylindrical bushing

6 shim

7 brake cylinder

And 8 braking the brake pad bracket.