CN202790226U - Drum brake and vehicle - Google Patents
Drum brake and vehicle Download PDFInfo
- Publication number
- CN202790226U CN202790226U CN 201220462519 CN201220462519U CN202790226U CN 202790226 U CN202790226 U CN 202790226U CN 201220462519 CN201220462519 CN 201220462519 CN 201220462519 U CN201220462519 U CN 201220462519U CN 202790226 U CN202790226 U CN 202790226U
- Authority
- CN
- China
- Prior art keywords
- drum brake
- outer end
- fastening piece
- end cap
- face
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a drum brake. The drum brake comprises a cam shaft (1) and an adjusting arm (4) which is installed on an outer end part (11) of the cam shaft (1); in addition, the drum brake further comprises an end cover (5) and a fastening piece (7), wherein an axial mounting hole (12) is formed in the end face of the outer end part (11), the fastening piece (7) is in fit with and installed on the axial mounting hole (12), and the end cover (5) is sleeved on the outer end part (11) and abuts against the outer end face of the adjusting arm (4) under the fastening action of the fastening piece (7). Through arranging the fastening piece on the end face of the cam shaft and utilizing the fastening effect of the fastening piece and a gasket function of the end cover, the drum brake can effectively position and lock a mounting part on the cam shaft axially and can prevent axial shifting, and the drum brake is simple in structure and is low in assembly cost; and moreover, foreign materials can also be prevented from entering the adjusting arm through the pre-tightening assembly and the function of the end cover. The utility model further provides a vehicle which is equipped with the drum brake.
Description
Technical field
The utility model relates to a kind of drum brake, and the assembly on especially a kind of camshaft can be realized the drum brake of mounting point fine adjustment.
Background technique
In the vehicle in the common drum brake, as depicted in figs. 1 and 2, camshaft 1 pass air chamber support 2 and the outer end 11 of stretching out outwardly on be equipped with and adjust arm 4, also be provided with pin-and-hole 8 on the outer end 11 and be used for installing the location.Wherein, at air chamber support 2 and adjust between the arm 4 and adjust between arm 4 and the pin-and-hole 8 and be equipped with one or more adjustment pads 3, be used for adjusting the axial mounting point of the assembly (being air chamber support 2 and adjustment arm 4 etc.) on the camshaft 1, and realize camshaft 1 assembling by the bearing pin 9 that inserts pin-and-hole 8.Yet, in this drum brake, by being set, the assembling mode of adjusting pad 3 and inserting bearing pin 9 is difficult to produce certain assemblage gap with avoiding, be difficult to realize the mounting point accurate adjustment of described assembly, thereby there is axial float in described assembly with adjustment pad 3, and make to adjust in the arm 4 to enter easily the impurity such as dust, the tiny grains of sand, thereby make easily the assembly premature wear.
The model utility content
The purpose of this utility model be overcome prior art defects with not enough, a kind of drum brake is provided, can regulate and the lock tab wheel shaft on the mounting point of assembly, prevent axial float and foreign matter intrusion adjustment arm.
To achieve these goals, the utility model provides a kind of drum brake, this drum brake comprises camshaft and is installed in adjustment arm on the outer end of this camshaft, in addition, this drum brake also comprises end cap and fastening piece, be formed with axial mounting hole on the end face of described outer end, described fastening piece cooperates and is installed in the described axial mounting hole, and described end cap is set on the described outer end and is resisted against the exterior edge face of described adjustment arm under the fastening effect of described fastening piece.
Preferably, this drum brake also comprises elastic component, and this elastic component pad is located between the outer end of described end cap and described fastening piece.
More preferably, described elastic component is rubber sheet gasket or spring washer.
More preferably, described rubber sheet gasket is toroidal, and the outward edge of this rubber sheet gasket is obliquely installed towards described end cap with respect to inward flange, and described outward edge is resisted against on the exterior edge face of described end cap.
More preferably, be formed with axially outwardly boss part on the exterior edge face of described end cap, described elastic component is installed on the described boss part.
Preferably, the exterior edge face of the interior edge face of described end cap and described adjustment arm forms the plane that cooperatively interacts.
Preferably, form spline fitted between the outer end of described camshaft and the described adjustment arm.
More preferably, the described adjustment arm installed position on the described outer end is provided with jump-ring slot, in this jump-ring slot jump ring is installed.
Preferably, described fastening piece is that bolt and described axial mounting hole are corresponding bolt center hole, and this bolt center hole is formed at the end face center of described outer end.
In addition, the utility model also provides a kind of vehicle, and this vehicle has the drum brake above-mentioned according to the utility model.
Pass through technique scheme, by the end face at camshaft fastening piece and the pad effect with end cap of screwing by fastening piece are set according to drum brake of the present utility model, can effectively realize axially locating and the locking of the assembly on the camshaft, prevent axial float, simple in structure and assembly cost is low, and can also prevent that by the effect of pretension assembling and end cap foreign matter from entering in the adjustment arm.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with following embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the plan view of the camshaft outer end of common drum brake;
Fig. 2 is the mounting structure schematic representation of camshaft outer end shown in Figure 1;
Fig. 3 is the plan view according to the camshaft outer end of the drum brake of the utility model preferred implementation;
Fig. 4 is the mounting structure schematic representation of camshaft outer end shown in Figure 3;
Fig. 5 is the cross-sectional view of the end cap in the mounting structure of camshaft outer end shown in Figure 4;
Fig. 6 is the cross-sectional view of employed rubber sheet gasket in the mounting structure of camshaft outer end shown in Figure 4.
Description of reference numerals
1 camshaft, 2 air chamber supports
3 adjust pad 4 adjusts arm
5 end caps, 6 elastic components
7 fastening pieces, 8 pin-and-holes
9 bearing pins, 11 outer ends
12 axial mounting hole 51 boss part
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 3 and Figure 4, the utility model provides a kind of drum brake, this drum brake comprises camshaft 1 and is installed in adjustment arm 4 on the outer end 11 of this camshaft 1, in addition, this drum brake also comprises end cap 5 and fastening piece 7, be formed with axial mounting hole 12 on the end face of described outer end 11, described fastening piece 7 cooperates and is installed on the described axial mounting hole 12, and described end cap 5 is set on the described outer end 11 and is resisted against the exterior edge face of described adjustment arm 4 under the fastening effect of described fastening piece 7.The utility model is adjusted pad and bearing pin for solving available technology adopting assembling mode is difficult to realize the problem that the exact position of assembly is regulated, and adopts the mode of fastening piece assembly to be carried out the fastening assembling of position-adjustable.Thereby preferably 11 end face arranges this fastening piece in the outer end, thereby the assembly on the camshaft 1 is carried out axial pretightening and fixing.Wherein, adjust arm 4 in order to prevent that the foreign matters such as dust from entering, need to set up especially end cap 5 on the exterior edge face of adjusting arm 4, end cap 5 not only plays anti-foreign matter and enters effect, more can matching fastener 7 for example bolt tighten to realize the exact position adjustment.That is to say, design as required the end cap 5 of different-thickness, can be used as pad and carry out axially locating locking in conjunction with corresponding bolt to adjusting arm 4.Need to prove that related this drum brake generally is applied on the vehicle in the utility model, the terminal part of adjusting arm 4 is installed towards the extending laterally of vehicle on the camshaft 1, thereby this terminal part is also referred to as outer end 11.And in following record, for end cap 5 intermediate members such as grade, its side towards for example air chamber support 2 can be described as the inboard, and on the contrary, the side towards described outer end 11 then is called the outside.
Wherein, above-mentioned fastening piece 7 can be Cock screw etc., but be preferably clamping bolt, conveniently to screw operation and to bear the larger power of screwing, and described axial mounting hole 12 is corresponding bolt center hole, this bolt center hole preferably is formed in the end face of described outer end 11 in the heart, with symmetrical about the axis of camshaft 1 and more stable about this axis rotation the time, is not easy to produce loosening.The length of bolt center hole should suitably arrange, and for example is not less than the thread section length of bolt, to make things convenient for the fully screw-in of bolt.
More than by end cap 5 as pad and select as required suitable thickness can realize the mounting point accurate adjustment of the assembly on the camshaft 1, but in practical operation, this drum brake more preferably also comprises elastic component 6, this elastic component 6 pads are located between described end cap 5 and the described fastening piece 7, to realize anti-loosening purpose.Assemblage gap during like this according to assembling further arranges elastic component, the locking effect when more convenient realization accurate assembly and increase bolt screw.Elastic component 6 possesses elasticity can provide pretightening force, pretightening force size when tightening to regulate fastening piece 7 so that each component combines better, can not enter the impurity such as dust, and so that camshaft 1 is difficult to axial float, improved the usability of break.This elastic component 6 can be rubber sheet gasket etc.As shown in Figure 6, this rubber sheet gasket can preferably be arranged to curved shape, be that rubber sheet gasket is toroidal to be installed on the camshaft 1, the outward edge of this rubber sheet gasket is with respect to the lopsidedness of inward flange towards end cap 5, so that this outward edge is resisted against on the exterior edge face of end cap 5, also form the effect of more closely fitting thereby increase elastic acting force.For keeping larger pretightening force, elastic component 6 can also be spring washer etc., to keep larger tension force.When elastic component 6 adopted spring washers or rubber sheet gasket etc., the exterior edge face towards fastening piece 7 of end cap 5 can arrange boss part 51 as shown in Figure 5, to be used for that described spring washer or rubber sheet gasket etc. are installed, prevents that further its generation from axially or radially getting loose.Wherein, the exterior edge face of the interior edge face of described end cap 5 and described adjustment arm 4 preferably forms the plane that cooperatively interacts.That is to say, by end cap 5 by with the exterior edge face of adjusting arm 4 between the plane contact fully so that prevent that the effect that dust enters is better.In addition, such as Fig. 1 or shown in Figure 3, form spline fitted between the outer end 11 of the described camshaft 1 in the present embodiment and the described adjustment arm 4, this spline fitted is suitable for rotatablely moving and bearing rotation torque, but axially locating is poor, thereby described adjustment arm 4 installed positions on the described outer end 11 also can be provided with jump-ring slot, and the jump ring (not shown) is installed in this jump-ring slot.Jump ring is set like this can forms certain axially locating to adjusting arm 4, alleviate the axially loaded of fastening piece 7.
In addition, the utility model also correspondingly provides a kind of vehicle, and this vehicle has the drum brake above-mentioned according to the utility model.Adopt the vehicle of this drum brake, assembly precision is high, maintain easily, and manufacturing, assembly cost is low.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. drum brake, this drum brake comprises camshaft (1) and is installed in adjustment arm (4) on the outer end (11) of this camshaft (1), it is characterized in that, this drum brake also comprises end cap (5) and fastening piece (7), be formed with axial mounting hole (12) on the end face of described outer end (11), described fastening piece (7) cooperation is installed in the described axial mounting hole (12), and described end cap (5) is set in described adjustment arm (4) was gone up and be resisted against in described outer end (11) under the fastening effect of described fastening piece (7) exterior edge face.
2. drum brake according to claim 1 is characterized in that, this drum brake also comprises elastic component (6), and this elastic component (6) pad is located between the outer end of described end cap (5) and described fastening piece (7).
3. drum brake according to claim 2 is characterized in that, described elastic component (6) is rubber sheet gasket or spring washer.
4. drum brake according to claim 3, it is characterized in that, described rubber sheet gasket is toroidal, and the outward edge of this rubber sheet gasket is obliquely installed towards described end cap (5) with respect to inward flange, and described outward edge is resisted against on the exterior edge face of described end cap (5).
5. drum brake according to claim 3 is characterized in that, is formed with axially outwardly boss part (51) on the exterior edge face of described end cap (5), and described elastic component (6) is installed on the described boss part (51).
6. drum brake according to claim 1 is characterized in that, the exterior edge face of the interior edge face of described end cap (5) and described adjustment arm (4) forms the plane that cooperatively interacts.
7. drum brake according to claim 1 is characterized in that, forms spline fitted between the outer end (11) of described camshaft (1) and the described adjustment arm (4).
8. drum brake according to claim 7 is characterized in that, described adjustment arm (4) installed position on described outer end (11) is provided with jump-ring slot, in this jump-ring slot jump ring is installed.
9. drum brake according to claim 1 is characterized in that, described fastening piece (7) is that bolt and described axial mounting hole (12) are corresponding bolt center hole, and this bolt center hole is formed at the end face center of described outer end (11).
10. vehicle is characterized in that, this vehicle has according to the described drum brake of any one among the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462519 CN202790226U (en) | 2012-09-12 | 2012-09-12 | Drum brake and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462519 CN202790226U (en) | 2012-09-12 | 2012-09-12 | Drum brake and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790226U true CN202790226U (en) | 2013-03-13 |
Family
ID=47817492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462519 Expired - Fee Related CN202790226U (en) | 2012-09-12 | 2012-09-12 | Drum brake and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511513A (en) * | 2013-10-16 | 2014-01-15 | 湖南中联重科车桥有限公司 | brake drum, drum brake structure and vehicle |
-
2012
- 2012-09-12 CN CN 201220462519 patent/CN202790226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511513A (en) * | 2013-10-16 | 2014-01-15 | 湖南中联重科车桥有限公司 | brake drum, drum brake structure and vehicle |
| CN103511513B (en) * | 2013-10-16 | 2016-05-25 | 湖南中联重科车桥有限公司 | drum brake structure and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10480571B2 (en) | Self locking bearing preload adjuster | |
| CN202301850U (en) | Engine wheel train tensioning wheel | |
| US8646762B2 (en) | Extension spring installation mechanism | |
| CN202790226U (en) | Drum brake and vehicle | |
| US10207565B2 (en) | Method and device for fastening a plastics component to a load-bearing component | |
| CN108757696A (en) | A kind of screw bolt and nut fastening assembly of never becoming loose | |
| JP2009293764A (en) | Bearing unit | |
| US20190048909A1 (en) | Attachment device | |
| US20150043856A1 (en) | Ac generator for vehicle | |
| CN204729482U (en) | A kind of fine-tuning bearing flange | |
| CN201763835U (en) | Hub bearing pre-tightening force adjusting device for automobile front axle | |
| CN202215688U (en) | Tensioning wheel bearing | |
| CN103982609A (en) | Eccentric idler wheel and using method thereof | |
| CN203420992U (en) | Threaded connection part | |
| CN208247883U (en) | Control arm component and the vehicle with it | |
| CN110798035B (en) | Pre-load applying structure and applying method of self-assembled limited corner torque motor bearing | |
| US20190032771A1 (en) | Planetary carrier for a gearset stage of a planetary gearset, and pretensioning method | |
| CN204658176U (en) | A kind of power spindle assembly justifying grinding machine | |
| CN202707755U (en) | Fastening element and fastening element installation structure | |
| CN208951076U (en) | A kind of stop nut | |
| CN202971780U (en) | Diesel engine and belt tension pulley thereof | |
| CN103016658A (en) | Diesel engine and belt tightening pulley thereof | |
| CN218642211U (en) | Vibration reduction support for elevator guide rail | |
| CN205978363U (en) | Differential bearing adjusting nut locking structure | |
| US20180306282A1 (en) | Friction Type One-Way High Damping Gauge Tensioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150912 |
|
| EXPY | Termination of patent right or utility model |