CN211501407U - Integrated brake caliper body and air disc brake - Google Patents

Abstract

The utility model relates to the field of brakes, and discloses an integrated brake caliper body and an air disc brake, wherein a first assembly cavity (2) for assembling a pressure arm component is formed in a caliper body (1), a shaft hole (3) is formed on the upper end surface of the first assembly cavity (2), a stress part (4) is formed in the first assembly cavity (2), a matching notch (5) matched with a rolling shaft is formed on the lower end surface of the stress part (4), and the axis of the matching notch (5) is vertical to the axis of the shaft hole (3); fabrication hole (6) have been seted up to the side of first assembly chamber (2), and cooperation notch (5) fall into in fabrication hole (6) along the projection region of cooperation notch (5) axis direction along the projection of cooperation notch (5) extending direction. The clamp body is of an integrally formed structure and has the advantages of high machining efficiency, convenience in clamping and the like.

Description

Integrated brake caliper body and air disc brake

Technical Field

The utility model relates to an atmospheric pressure disk brake field has especially related to integral type brake caliper body and atmospheric pressure disk brake.

Background

There are various air disc brakes on the market at present, and if classified according to the pushing mode, the air disc brakes can be classified into single-push-rod air disc brakes and double-push-rod air disc brakes, and the double-push-rod air disc brakes can be classified into axial air disc brakes and radial air disc brakes, and if classified according to the assembling mode of the rotating assembly, the air disc brakes can be classified into upper cover type air disc brakes and non-upper cover type air disc brakes. The non-upper cover type air pressure disc brake is mainly an axial double-push-rod air pressure disc brake, basically, the rotating component is in a small assembly form, and the rotating component is placed in the cavity of the integral caliper body in the assembly form and is sealed by a bottom cover, a sealing cover cap and the like; the upper cover type air pressure disc brake mainly comprises a single push rod air pressure disc brake and a radial double push rod air pressure disc brake.

The technical scheme discloses an integral brake caliper body, wherein a part of the brake caliper body replacing an end cover is of an integrally formed structure, a cavity for installing an adjusting mechanism is formed in the caliper body, wherein a special processing tool needs to be introduced in the processing process of a supporting surface and other parts, the brake caliper body is called an angle head in the industry, the clamping is inconvenient in the processing process of the angle head, the processing process of the angle head is complicated, the production efficiency is low, and the cost is high.

The utility model provides a for divide into two parts with the pincers body, but the lower part of upper cover portion and pincers body forms an organic whole, makes the pincers body upper cover portion need not use more bolt to fix, avoids traditional upper cover portion structural strength to need the defect of more bolted connection greatly.

Among the prior art, wuhan yuan feng automobile parts limited's patent 201410358047.5 discloses "have bearing limit structure's atmospheric pressure disk brake pressure arm", this pressure arm needs the stopper and matches the use at bearing at the installation, and it is narrow and small owing to the pincers body of non-end cover all has the installation cavity assembly mouth, is unfavorable for erection equipment and staff to get into and processes the assembly in this space in the actual assembling process, so the installation of stopper is very complicated under this kind of structure, and production efficiency is lower.

Patent 201510788100.X of Wuhan Yuanfeng automobile parts Limited discloses an assembly method of an air pressure disc brake, which utilizes an integral caliper, and from the attached drawings and the description of the specification, if the supporting surface is of an integrally formed structure, the selected integral caliper body is the integral caliper body of Weibo, and the defects of the caliper body are described in the documents; the supporting solution of the supporting surface selected for this purpose is the solution disclosed in its own patent 201410358047.5, using a limiting block, if the supporting surface is of non-integral structure, the drawbacks of which are also mentioned above. In addition, the assembly scheme requires a special fixture for assembly when the first component and the second component are assembled, so that the whole assembly process cannot be completed on the same processing equipment, and automation is not facilitated.

And traditional pivot and cylinder cap are line contact, and the contact force is great, causes spare part to become invalid easily. And the pivot is mostly the slip design, and frictional resistance is great, though patent 201410358047.5 discloses "the atmospheric pressure disk brake pressure arm that has bearing limit structure" uses needle bearing to realize rolling and replace the slip, but this kind of structural assembly is comparatively complicated.

In view of the problems in the prior art, the applicant provides a new technical solution to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is inconvenient to integral type pincers body processing among the prior art, and machining efficiency is low to and be unfavorable for the defect of later stage guiding mechanism assembly, provide an integral type braking pincers body and air disc brake.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the integrated brake caliper body comprises an integrally formed caliper body, wherein a first assembly cavity for assembling the pressure arm assembly is formed in the caliper body, a shaft hole is formed in the upper end face of the first assembly cavity, a stress part is formed in the first assembly cavity, a matching notch for matching with the rolling shaft is formed in the lower end face of the stress part, and the axis of the matching notch is perpendicular to the axis of the shaft hole; the side of the first assembly cavity is provided with a fabrication hole, and the projection of the matching notch along the extending direction of the matching notch falls into the projection area of the fabrication hole along the axis direction of the matching notch. Thereby this pincers body is through the area of contact of design cooperation notch increase with the roller bearing, has reduced contact force between the two to make the roller bearing can take place to roll in the cooperation inslot, and the fabrication hole of design moreover, make processing cooperation notch simpler, only need fix a position the work piece can realize following the outside cooperation notch of direct processing out of high accuracy at horizontal machining center, the course of working can go on under same clamping condition with other processing position, so has practiced thrift process time greatly.

Preferably, the number of the process holes is two, the process holes are respectively formed in the left side wall of the first assembly cavity and the right side wall of the first assembly cavity, the process holes and the matching notches are coaxially arranged, the two process holes are convenient for machining the left matching notch and the right matching notch, and therefore the process holes are matched with the two rolling shafts.

Preferably, the number of the matching notches is two, and the matching notches are distributed on the left side and the right side of the shaft hole; one end of each matching notch, which is close to the shaft hole, is provided with a limiting surface, and one end, which is far away from the shaft hole, is in a through state and is communicated with the fabrication hole.

As preferred, the number of atress portion is two, distributes in the both sides of shaft hole place axis, and the lower terminal surface of every atress portion has all seted up the cooperation notch.

Preferably, mounting grooves are formed between the force-bearing part and the left side surface and the right side wall of the first mounting cavity, and the fabrication holes and the mounting notches are distributed on two sides of the mounting grooves. The mounting groove is used for facilitating the later stage to seal the process opening, and the guarantee is sealed more conveniently.

Preferably, the cross-section of the mating notch is arcuate. The cambered surface can cooperate with the roller, increase area of contact, make the line contact become the surface contact.

Preferably, a partial side line of the cross section of the fabrication hole coincides with a projection of a side line of the cross section of the fitting notch in the axial direction of the fitting notch.

As preferably, first assembly chamber includes to the bellied second chamber in back, and the left and right sides setting in first assembly chamber is formed with the location platform, and the location platform is highly less than first assembly chamber up end place height, is formed with the column pinhole on the location platform, and the outside in column pinhole is provided with the location shoulder, and the location shoulder sets up on the location platform, and the left side and the right side of the lower extreme of pincers body all are provided with the constant head tank, and the medial surface of constant head tank is the locating surface. By adopting the structure, the limitation of 6 degrees of freedom of the clamp body can be realized during installation, the clamp body can be conveniently machined on a horizontal machining center, and the accuracy of the size of each position is ensured.

Preferably, the positioning groove is tetrahedron, so the positioning groove can limit in two directions, the forming process is optimized, and the lower end of the front end face of the clamp body is provided with a plane for clamping and using as a compression point.

The utility model also discloses an air pressure disc brake,

the utility model discloses owing to adopted above technical scheme, have following apparent technological effect:

the utility model discloses a design pincers body structure, creative adoption outside processing's method makes can form the high accuracy in the pincers body and roller bearing complex arc wall, has practiced thrift the processing cost greatly for traditional integrated into one piece, and machining efficiency is also very high moreover. Meanwhile, the area of the contact part of the assembly notch and the roller is increased, so that the contact force is reduced, and the roller can roll more conveniently and simply. Meanwhile, the clamp body is convenient to clamp and position, all processing items can be completed by one-time clamping on one processing center, and the position accuracy between the processing parts of the clamp body is ensured. Meanwhile, the clamp body with the structure is convenient for assembling parts of the air pressure disc brake.

Drawings

Fig. 1 is a schematic view of the overall structure of the caliper body.

Fig. 2 is a perspective view of the rear view of the caliper body.

Fig. 3 is a left side view of fig. 1.

Fig. 4 is a schematic perspective view of the cross-sectional view of fig. 3B-B.

Fig. 5 is an initial state diagram in the clamping state of the caliper body.

The names of the parts indicated by the numerical references in the drawings are as follows: the clamp comprises a clamp body 1, a clamp body 2, a first assembly cavity, a shaft hole 3, a stress part 4, a matching notch 5, a fabrication hole 6, a limiting surface 7, an installation groove 8, a second cavity 9, a positioning table 10, a positioning shoulder 11 and a positioning groove 12.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 4, an integrated caliper body, which is applied to a single push rod type air disc brake in the present embodiment. The clamp comprises a clamp body 1 which is integrally formed, wherein the clamp body 1 is integrally cast and formed. The upper, lower, left, right, front and rear positions below are based on fig. 1. The first assembly cavity 2 used for assembling the pressure arm assembly is formed in the clamp body 1, the upper end face of the first assembly cavity 2 is provided with a shaft hole 3, the center of the shaft hole 3 is the braking center of the brake, and the adjusting rod of the adjuster is assembled in the shaft hole 3 during assembly. The first assembly cavity 2 is formed with a stress part 4, and the stress part 4 is a boss integrally formed in the first assembly cavity 2 and extending downwards. The lower end face of the stress part 4 is provided with a matching notch 5 used for being matched with the rolling shaft, and the axis of the matching notch 5 is vertical to the axis of the shaft hole 3; fabrication hole 6 has been seted up to the side of first assembly chamber 2, and cooperation notch 5 falls into in the projection region of fabrication hole 6 along 5 axis directions of cooperation notch along the projection of 5 extending directions of cooperation notch, and fabrication hole 6 is used for processing cooperation notch 5, because directly processes from the lower extreme opening of first assembly chamber 2, not only need use the angle head to reduce machining efficiency, and angle head processing also hardly processes out the cooperation notch 5 of the shape that this embodiment narrated moreover. Thereby this pincers body is through the area of contact of design cooperation notch 5 increase with the roller bearing, has reduced contact force between the two, thereby make the roller bearing can take place to roll in the cooperation inslot, and the fabrication hole 6 of design moreover, make processing cooperation notch 5 simpler, only need fix a position the work piece can realize following outside direct processing and go out the cooperation notch 5 of high accuracy at horizontal machining center, the course of working can go on under same clamping condition with other processing positions, so has practiced thrift process time greatly.

In the present embodiment, since the single push rod type air disc brake has two rollers, the number of the fitting notches 5 and the tooling holes 6 is also two in the present embodiment in order to match therewith. Two fabrication holes 6 are respectively opened on the left side wall of first assembly chamber 2 and the right side wall of first assembly chamber 2, and fabrication hole 6 sets up with cooperation notch 5 coaxial line, and two fabrication holes 6 are used for processing left cooperation notch 5 and right side cooperation notch 5 respectively to the realization cooperates with two roller bearings. The two matching notches 5 are respectively distributed on the left side and the right side of the shaft hole 3; one end of each matching notch 5, which is close to the shaft hole 3, is provided with a limiting surface 7, and one end, which is far away from the shaft hole 3, is in a through state and is communicated with the fabrication hole 6.

For the convenience of processing cooperation notch 5 and be convenient for assemble with guiding mechanism pressure arm subassembly, the number of atress portion 4 is two, distributes in the both sides of shaft hole 3 place axis, and cooperation notch 5 has all been seted up to the lower terminal surface of every atress portion 4. Mounting grooves 8 are formed between the force receiving part 4 and the left and right side walls of the first assembling cavity 2, and the fabrication holes 6 and the assembling notches are distributed on both sides of the mounting grooves 8. The mounting groove 8 is used for sealing the process opening in the later period, and the sealing is guaranteed to be more convenient.

Because the cross-section of roller bearing is circular, so the cross-section of cooperation notch 5 is the arc, and when the assembly, the upper end of roller bearing is contradicted in cooperation notch 5 to increased area of contact, made the line contact become the face contact, make the roller bearing can roll smoothly in cooperation notch 5.

For clarity, how the pliers body is machined in the present embodiment, how the pliers body is clamped during machining will be described below.

Firstly, 6 degrees of freedom of the caliper body need to be limited in the clamping process. The clamping process utilizes a horizontal machining center for machining. First assembly chamber 2 includes to bellied second chamber 9 in back, and the left and right sides setting in first assembly chamber 2 is formed with location platform 10, and location platform 10 is highly less than first assembly chamber 2 up end place height, is formed with column pinhole 30 on the location platform 10, and the outside of column pinhole 30 is provided with location shoulder 11, and location shoulder 11 integrated into one piece is on location platform 10, and in this embodiment well, column pinhole 30 is the pipe fitting, and pipe fitting and pincers body an organic whole form, and the shaping has the strengthening rib moreover between the lateral wall of pipe fitting and the pincers body. And the left side and the right side of the lower end of the forceps body 1 are both provided with a positioning groove 12, and the inner side surface of the positioning groove 12 is a positioning surface. By adopting the structure, the limitation of 6 degrees of freedom of the clamp body can be realized during installation, the clamp body can be conveniently machined on a horizontal machining center, and the accuracy of the size of each position is ensured. The positioning groove 12 is in a tetrahedron shape, so that the positioning groove 12 can limit in two directions, and a forming process is optimized; the lower extreme of the preceding terminal surface of pincers body is provided with the plane that is used for the clamping to use as the point of compressing tightly.

For clarity of illustration of the concept of the present invention, the clamping positioning of the caliper body is described below. The upper, lower, left, right, front and rear positions described below are referred to in fig. 5, and since a horizontal machining center is used, fig. 5 shows an initial state when the caliper body is clamped.

Positioning in the up-down direction: the upper end surface of the positioning groove 12, the lower side surface of the positioning shoulder 11 and two surfaces symmetrical at the other side are used as positioning surfaces, and the end surface of the upper side caliper body of the positioning groove 12, the upper end surface of the positioning shoulder 11 and points symmetrical on the two end surfaces at the other side are used as compression points; the positioning in the up-and-down direction is realized;

positioning in the left-right direction: the left side surface of the positioning groove 12 and the left side surface of the positioning groove 12 on the other symmetrical side are positioning surfaces, and the end surface of the left end positioning table 10 and the point on the end surface of the positioning table 10 chopped into the other side are selected as compaction points; the positioning in the left and right directions is realized;

positioning in the front-back direction: the front end face and the rear end face of the outer side wall of the second cavity 9 are used as positioning faces to realize positioning in the front-rear direction.

After the positioning is finished, the shaft hole 3, the pin hole 30 and the fabrication hole 6 are processed in the horizontal machining center, and the matching notch 5 is processed from the fabrication hole 6.

This embodiment is through designing the pincers body structure, and the creative method that adopts outside processing makes can form the high accuracy in the pincers body and roller bearing complex arc wall, has practiced thrift the processing cost greatly for traditional integrated into one piece, and machining efficiency is also very high moreover. Meanwhile, the area of the contact part of the assembly notch and the roller is increased, so that the contact force is reduced, and the roller can roll more conveniently and simply. Meanwhile, the clamp body is convenient to clamp and position, all processing items can be completed by one-time clamping on one processing center, and the position accuracy between the processing parts of the clamp body is ensured. Meanwhile, the clamp body with the structure is convenient for assembling parts of the air pressure disc brake.

Example 2

Different from the embodiment 1, the partial side line of the section of the fabrication hole 6 and the projection of the side line of the section of the assembly notch along the axial direction of the assembly notch coincide, and the structure limits the fabrication hole 6 and the matching notch 5 to be arranged in a coaxial equal-radius mode, so that the processing precision can be ensured.

Example 3

Different from embodiment 1, the number of fabrication holes 6 is one, and limit surface 7 is not provided, so during processing, only one fabrication hole 6 needs to be continuously processed, two matching notches 5 are processed, and the matching notches 5 penetrate through the left end surface and the right end surface of the stress part 4 where the matching notches are respectively located.

Example 4

This embodiment is different from embodiment 3 in that: the number of the stress parts 4 is one, and an assembling space for assembling the pressure arm component of the adjusting mechanism is arranged in the middle of the stress part 4 and is not shown.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. Integral type brake caliper body, its characterized in that: the clamp comprises an integrally formed clamp body (1), wherein a first assembly cavity (2) for assembling a pressure arm assembly is formed in the clamp body (1), a shaft hole (3) is formed in the upper end face of the first assembly cavity (2), a stress part (4) is formed in the first assembly cavity (2), a matching notch (5) for matching with a rolling shaft is formed in the lower end face of the stress part (4), and the axis of the matching notch (5) is vertical to the axis of the shaft hole (3); fabrication hole (6) have been seted up to the side of first assembly chamber (2), and cooperation notch (5) fall into in fabrication hole (6) along the projection region of cooperation notch (5) axis direction along the projection of cooperation notch (5) extending direction.

2. The integrated caliper body according to claim 1, wherein: the number of the process holes (6) is two, the process holes are respectively arranged on the left side wall of the first assembly cavity (2) and the right side wall of the first assembly cavity (2), and the process holes (6) and the matching notches (5) are arranged coaxially.

3. The integrated caliper body according to claim 2, wherein: the number of the matching notches (5) is two, and the matching notches are distributed on the left side and the right side of the shaft hole (3); one end of each matching notch (5) close to the shaft hole (3) is provided with a limiting surface (7), and the end far away from the shaft hole (3) is not provided with a limiting surface and communicated with the technical hole (6) in a through state.

4. The integrated caliper body according to claim 1, 2 or 3, wherein: the number of atress portion (4) is two, distributes in the both sides of shaft hole (3) place axis, and cooperation notch (5) have all been seted up to the lower terminal surface of every atress portion (4).

5. The integrated caliper body according to claim 2 or 3, wherein: an installation groove (8) is formed between the stress part (4) and the left side face and the right side wall of the first assembly cavity (2), and the fabrication holes (6) and the assembly notches are distributed on two sides of the installation groove (8).

6. The integrated caliper body according to claim 1, 2 or 3, wherein: the cross section of the matching notch (5) is arc-shaped.

7. The integrated caliper body according to claim 1, 2 or 3, wherein: partial side lines of the cross section of the fabrication hole (6) coincide with the projection of the side lines of the cross section of the assembling notch along the axial direction of the assembling notch.

8. The integrated caliper body according to claim 1, wherein: first assembly chamber (2) are including bellied second chamber (9) to the back, the left and right sides setting in first assembly chamber (2) is formed with location platform (10), location platform (10) place highly is less than first assembly chamber (2) up end place height, be formed with column pinhole (30) on location platform (10), the outside of column pinhole (30) is provided with location shoulder (11), location shoulder (11) set up on location platform (10), the left side and the right side of the lower extreme of pincers body (1) all are provided with constant head tank (12), the medial surface of constant head tank (12) is the locating surface.

9. The integrated caliper body according to claim 8, wherein: the positioning groove (12) is in a tetrahedron shape; the lower extreme of the preceding terminal surface of pincers body is provided with the plane that is used for the clamping to use as the point of compressing tightly.

10. Air disc brake, its characterized in that: comprising an integral caliper body according to any one of claims 1 to 9.

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