CN207333502U - A kind of drum brake and its hinge shaft - Google Patents
A kind of drum brake and its hinge shaft Download PDFInfo
- Publication number
- CN207333502U CN207333502U CN201721364879.3U CN201721364879U CN207333502U CN 207333502 U CN207333502 U CN 207333502U CN 201721364879 U CN201721364879 U CN 201721364879U CN 207333502 U CN207333502 U CN 207333502U
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- China
- Prior art keywords
- cylindrical section
- hinge shaft
- stage casing
- brake
- drum brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012634 fragment Substances 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a kind of drum brake and its hinge shaft, drum brake includes two hinge shafts in left and right；The hinge shaft is divided into the first cylindrical section, the second cylindrical section and the stage casing of connection first cylindrical section and the second cylindrical section；The stage casing is dolioform.The problem of the utility model cydariform hinge shaft is divided into three sections, efficiently solves braking tile fragment inner arc surface when be bonded with the external cylindrical surface of braked wheel in the prior art, diagonal contact, single edge contact, braking effect is significantly improved, ensures braking reliably.
Description
Technical field
Parking safety guard is the utility model is related to, is specially drum brake and its hinge shaft.
Background technology
Drum brake is a kind of most widely used parking safety guard of industrial equipment, its braking clad can is big, dissipates
Thermal effect is good.Usually by power hydraulic pressure catch bar, electromagnet, hydraulic cylinder or cylinder driving.By the system on braking tile fragment
The external cylindrical surface composition braking by-product life breaking force of dynamic pad inner cylinder face and braked wheel.
Such as Fig. 1, for existing drum brake by base 10, brake arm, brakes tile fragment, brake rim 7, pull rod 8, set square
9, tripping spring pipe 11 and the grade of pushing meanss 12 form.On equipment rack, base is equipped with 4 groups and is parallel to each other floor installation
Elongated hole, by hinge shaft from it is right successively with pushing meanss, the lower end hinge joint of tripping spring pipe and left and right brake arm.On set square
There are 4 groups of elongated holes being parallel to each other, high order end hole is located at the top or lower part of first three hole on line, by hinge shaft from the right side successively with pushing away
Dynamic device, tripping spring pipe, the upper end of right brake arm and the right end hinge joint of pull rod, the upper end of left brake arm and the left end of pull rod twist
Connect, the middle part of left and right brake arm it is on the lower side respectively by cydariform hinge shaft with braking tile fragment in the middle part of link, brake the interior cylinder of tile fragment
Shoe Brake pad is installed, Brake pad is contacted with the braked wheel external cylindrical surface being braked on face.
The contact rate of the braking tile fragment inner arc surface of drum brake and the external cylindrical surface of braked wheel is the pass of braking effect
All it is difficult to accomplish two pieces of braking tile fragments by existing processing and installation technological means to ensure the contact rate where key
The axis of inner arc surface is parallel with the axis of the external cylindrical surface of braked wheel.New clothes equipment contact rate is all very low, can only take scene
The mode of break-in slowly improves contact rate.
Through analysis, the axial parallelism-errors of the axis of tile fragment inner arc surface and the external cylindrical surface of braked wheel are braked by base
Axis hole site error, brake arm axis hole site error, brakes tile fragment axis hole site error, and floor installation face site error and peace
Fill precision composition.Thus, parallelism error it is difficult to ensure that.Show as the outside cylinder face paste of braking tile fragment inner arc surface and braked wheel
During conjunction, diagonal contact, the phenomenon of single edge contact.
The content of the invention
The utility model aims to provide a kind of drum brake and its hinge shaft, improves braking effect, ensures that braking is reliable.
In order to solve the above technical problems, technical solution is used by the utility model：A kind of drum brake, including a left side
Right two hinge shafts；The hinge shaft is divided into the first cylindrical section, the second cylindrical section and connection first cylindrical section and the second cylinder
The stage casing of section；The stage casing is dolioform.
The first cylindrical section, the second cylindrical section and the left hand brake tile fragment of left hinge shaft are hinged；First cylindrical section of right hinge shaft,
Two cylindrical sections are hinged with right side brake tile fragment；The stage casing of two hinge shafts is each passed through left brake arm, the hole on right brake arm.
The basal diameter phase of the cross-sectional diameter of the stage casing maximum position and first cylindrical section, the second cylindrical section
Deng easy to process.
Groove is equipped between the stage casing and first cylindrical section, the second cylindrical section, groove can be by two cylinders
End separates, easy to process.
Correspondingly, the drum-type hinge shaft of a kind of drum brake provided by the utility model, it includes the first cylindrical section, second
Cylindrical section and the stage casing of connection first cylindrical section and the second cylindrical section；The stage casing is dolioform.
Groove is equipped between the stage casing and first cylindrical section, the second cylindrical section.
Compared with prior art, had the beneficial effect that possessed by the utility model：The utility model cydariform hinge shaft is divided into three
Section, efficiently solves braking tile fragment inner arc surface in the prior art and when be bonded with the external cylindrical surface of braked wheel, diagonally contacts, unilateral
The problem of contact, significantly improve braking effect, ensures braking reliability, while the high temperature for improving brake bears energy
Power.
Brief description of the drawings
Fig. 1 is the utility model embodiment structure diagram；
Fig. 2 is the utility model hinge shaft coupling part structure diagram；
Fig. 3 is the utility model hinge shaft structure diagram；
Fig. 4 rotates schematic diagram for the utility model hinge shaft around X-axis；
Fig. 5 rotates schematic diagram for the utility model hinge shaft around Y-axis.
Embodiment
As shown in Figures 2 and 3, the utility model cydariform hinge shaft 1 divides for three sections, and both ends are cylindrical section, and the two of the cylindrical section
End is respectively with braking tile fragment（Left hand brake tile fragment 2, right side brake tile fragment 3）The hinge joint of left and right plate, stage casing is small broad in the middle for two
It is dolioform, with brake arm（Left brake arm 4, right brake arm 5）Middle part straight hole hinge joint, the dolioform maximum position diameter in stage casing and two
Hold equal for cylindrical section diameter, 6 transition of groove is equipped with cylindrical section connection place dolioform.Cydariform hinge shaft can be straight in the middle part of arm
Swung in hole.Brake tile fragment inner arc surface be bonded with the external cylindrical surface of braked wheel when, such as occur brake rim inner arc surface and
When braked wheel external cylindrical surface diagonally contacts, cydariform hinge shaft turns about the X axis automatically（As shown in Figure 4）, increase binding face；As occurred
When brake rim inner arc surface is with braked wheel external cylindrical surface single edge contact, cydariform hinge shaft is rotated around Y-axis automatically（As shown in Figure 5）,
Increase binding face；Braking tile fragment on the brake arm of left and right, which is each adjusted, to be independent of each other.
Hinge shaft both ends open up split pin 14, brake and baffle ring 13 is set on the hinge shaft on the outside of tile fragment so that structure is more steady
Gu.
Claims (6)
1. a kind of drum brake, it is characterised in that including the hinge shaft of left and right two（1）；Left hinge shaft, right hinge shaft are divided into the first circle
Shell of column, the second cylindrical section and the stage casing of connection first cylindrical section and the second cylindrical section；The stage casing is dolioform.
2. drum brake according to claim 1, it is characterised in that the first cylindrical section, the second cylindrical section of left hinge shaft
It is hinged with left hand brake tile fragment；The first cylindrical section, the second cylindrical section and the right side brake tile fragment of right hinge shaft（3）It is hinged；Left and right two
A hinge shaft（1）Stage casing be each passed through left brake arm（4）, right brake arm（5）On hole.
3. drum brake according to claim 1, it is characterised in that the cross-sectional diameter of the stage casing maximum position with
First cylindrical section, the basal diameter of the second cylindrical section are equal.
4. the drum brake according to one of claims 1 to 3, it is characterised in that the stage casing and first cylinder
Groove is equipped between section, the second cylindrical section（6）.
5. the drum-type hinge shaft of a kind of drum brake, it is characterised in that including the first cylindrical section, the second cylindrical section and connection institute
State the stage casing of the first cylindrical section and the second cylindrical section；The stage casing is dolioform.
6. drum-type hinge shaft according to claim 5, it is characterised in that the stage casing and first cylindrical section, the second circle
Groove is equipped between shell of column（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364879.3U CN207333502U (en) | 2017-10-23 | 2017-10-23 | A kind of drum brake and its hinge shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364879.3U CN207333502U (en) | 2017-10-23 | 2017-10-23 | A kind of drum brake and its hinge shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333502U true CN207333502U (en) | 2018-05-08 |
Family
ID=62366206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364879.3U Active CN207333502U (en) | 2017-10-23 | 2017-10-23 | A kind of drum brake and its hinge shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333502U (en) |
-
2017
- 2017-10-23 CN CN201721364879.3U patent/CN207333502U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |