CN202032016U - Disk brake - Google Patents
Disk brake Download PDFInfo
- Publication number
- CN202032016U CN202032016U CN2011201283828U CN201120128382U CN202032016U CN 202032016 U CN202032016 U CN 202032016U CN 2011201283828 U CN2011201283828 U CN 2011201283828U CN 201120128382 U CN201120128382 U CN 201120128382U CN 202032016 U CN202032016 U CN 202032016U
- Authority
- CN
- China
- Prior art keywords
- brake
- hole
- disk type
- type braker
- friction plate
- 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
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Abstract
The utility model discloses a disc brake, which comprises a brake shell, a brake piston and a friction plate assembly, wherein a lubricant inlet is formed on the brake shell; the brake piston is arranged in the brake shell; and the friction plate assembly is arranged on the outer side face of the brake piston. The disc brake is characterized by also comprising a brake pressure sensor, wherein a through hole is formed at a critical position of the brake shell; and the brake pressure sensor is arranged in the through hole. When the friction plate assembly or a bearing block of the disc brake is worn to a certain degree, the information can be transmitted to an operator through the pressure sensor, a corresponding measure is taken, the lubricant inlet can be prevented from being blocked, enough lubricant is ensured, and early wear rejection of the friction plate assembly caused by heat because the lubricant is not enough is prevented.
Description
Technical field
The utility model relates to a kind of tractor hydraulic and handles the monolithic disk type braker, relates in particular to a kind of abrasion condition that can detect brake bush or bearing support, and can prevent that break lubricant oil oil inlet hole from stopping up.
Background technique
The braking device of tractor is made up of break and braking maneuver mechanism two-part.Break is to be used for the driving wheel that rotating is produced the device of resisting moment specially, wherein disk type braker is more common, braking maneuver mechanism handles and the control brake device makes it the mechanism of braking or unclamping, and wherein the application of hydraulic type operating mechanism is more and more general.
At present, used with tractor hydraulic operation disc type break the fault of brake failure occurs in use for some time easily, and its main cause has two, and the one, when friction plate or the bearing support excessive wear that is in contact with it, the operator can not in time obtain information; The 2nd, the oil inlet hole of break is located at the below of brake casing, and oil inlet hole stops up easily, causes the heating of friction plate oil starvation, and wearing and tearing are too early scrapped.
Be existing disk type braker structural representation referring to Fig. 1, existing disk type braker comprises brake casing 1a, brake oil union body 2a, brake bleeding plug screw 3a, lubricant oil oil inlet hole 4a, as shown in the figure, the lubricant oil oil inlet hole 4a of the disk type braker of prior art is the below that is positioned at brake casing, so the impurity such as iron filings that produce in the break can be deposited to the bottommost of break, and then stop up this oil inlet hole, cause break lubricated insufficient timely, cause the wearing and tearing that friction plate is too early.
Prior art
1a brake oil union body
2a brake bleeding plug screw
3a air bleeder screw plug dust ring
4a lubricant oil oil inlet hole
The utility model
1 brake casing
2 brake pressure sensors
3 brake oil union bodies
4 brake bleeding plug screws
5 lubricant oil oil inlet holes
The 6 break purge cocks that rub
7 brake plungers
8 friction plate assembly parties
9,13 O RunddichtringOs
10 pins
11 through holes
12 pickup dust-proofing circles
14 brake springs
15 bearing supports
16 bonded washers
The model utility content
A purpose of the present utility model is to provide a kind of disk type braker, this break on the one hand in friction plate or the carrier wear that is in contact with it when scrapping the limit, energy warning in advance operator.
Another purpose of the present utility model is to provide a kind of disk type braker, and this break can prevent that the lubricant oil oil inlet hole from stopping up, and guarantees that oil circuit is unobstructed.
To achieve these goals, the utility model provides a kind of disk type braker, comprise: brake casing, brake plunger, friction plate assembly parts, described brake casing is provided with the lubricant oil oil inlet hole, described brake plunger is arranged in the described brake casing, described friction plate assembly parts is arranged on the outer side surface of described brake plunger, it is characterized in that, also comprise a brake pressure sensor, one critical localisation of described brake casing is provided with a through hole, and described brake pressure sensor is arranged in the described through hole.
Above-mentioned disk type braker, wherein, the minimum point that described lubricant oil oil inlet hole is arranged on described brake casing has on the position of an angle α.
Above-mentioned disk type braker, wherein, described through hole is the variable cross section hole, described brake pressure sensor is arranged on the outside of contiguous described brake casing.
Above-mentioned disk type braker, wherein, described through hole comprises the outer sector hole that extended internally by the described brake casing outside and extends to interior sector hole in the described brake casing by described outer sector hole, the aperture of described outer sector hole is greater than the aperture of sector hole in described, and described brake pressure sensor is arranged in the described outer sector hole.
Above-mentioned disk type braker, wherein, described through hole is the multistage shoulder hole.
Above-mentioned disk type braker, wherein, described through hole is a taper hole.
Above-mentioned disk type braker, wherein, described angle is 20 °≤α≤50 °.
Above-mentioned disk type braker, wherein, described angle α is 30 °.
Above-mentioned disk type braker, wherein, the joint of described pressure transducer and brake casing also is provided with the pickup dust-proofing circle.
Above-mentioned disk type braker, wherein, the joint of described pressure transducer and brake casing also is provided with the pickup dust-proofing circle.
Beneficial functional of the present utility model is: when brake friction chip assembly or carrier wear arrive to a certain degree, can this information be passed to the operator by pressure transducer, to take appropriate measures, and can prevent that into the oilhole of lubricant oil stops up, guaranteed sufficient lubricating oil, prevented that the friction plate assembly parts from causing that because of oil starvation plays heat too early wearing and tearing scrap.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is existing disk type braker structural representation;
Fig. 2 is the utility model disk type braker structural representation;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the utility model one embodiment's schematic representation.
Wherein, reference character
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are done concrete description:
Be existing disk type braker structural representation referring to Fig. 1, as shown in the figure, the lubricant oil oil inlet hole 4a of the disk type braker of prior art is the below that is positioned at brake casing, thereby the bottommost that impurity such as iron filings that produce in the break etc. are deposited to break advances, will stop up this oil inlet hole 4a, cause break lubricated insufficient, cause the wearing and tearing that friction plate is too early.
See also Fig. 2, Fig. 3 the utility model disk type braker structural representation, in Fig. 2, embodiment shown in Figure 3, the utility model discloses a kind of disk type braker, be mainly used in the braking system of tractor, as shown in the figure, mainly comprise: brake casing 1, brake oil union body 3, brake bleeding plug screw 4, lubricant oil oil inlet hole 5, the break purge cock 6 that rubs, brake plunger 7, friction plate assembly parts 8.The major character of the disk type braker that the utility model discloses is, also comprises a brake pressure sensor 2.
Further, as Fig. 2, shown in Figure 3, lubricant oil oil inlet hole 18 is arranged on the described brake casing 8 and its below α at angle, described α value should both can guarantee that lubricant oil oil inlet hole 5 was lower than the minimum level of lubricant oil, guaranteed again that before brake bush heavy wear the impurity such as iron filings that produce in the break can not stop up this oil inlet hole.
Described brake plunger 7 is arranged in the described brake casing 1, described friction plate assembly parts 8 is arranged on the outer side surface of described brake plunger 7 bottoms, one through hole 11 is set on a critical localisation of described brake casing 1, and described brake pressure sensor 2 is arranged in the described through hole 11.
Described critical localisation is meant, the normal working stroke at brake plunger 7 tops, when friction plate assembly parts 8 causes the paranormal working stroke of distance that brake plunger 7 tops move because of wearing and tearing, the through hole 11 that is arranged on described critical localisation promptly communicates with oil pocket on the brake casing 1, and then makes high pressure not enter through hole and produce certain oil pressure.
Being provided with of described through hole 11 cross sections can have numerous embodiments, is as the criterion so that the oil pressure that produces can satisfy the pressure that brake pressure sensor 2 sets.Through hole 11 can be chosen as hole, single cross section, also can select the variable cross section hole, embodiment's through hole 11 that the utility model discloses is the variable cross section hole, as shown in Figure 3, Figure 4, through hole 11 is set to two sections, the outer sector hole that is extended internally by described brake casing 1 outside and extend to interior sector hole in the brake casing 1 by outer sector hole, the aperture of outer sector hole is arranged on brake pressure sensor 2 in the outer sector hole greater than the aperture of interior sector hole.Certainly can also there be various ways in the variable cross section hole, does not exceed with above-mentioned specific embodiment, for example, can also select the stepped through hole of multistage, also can be chosen as taper hole or the like.
Referring to Fig. 4 the utility model one embodiment's schematic representation.Disk type braker is connected with the driving wheel of tractor by a bearing support 15 and bearing (not shown), this pressure transducer 2 is arranged in the through hole of brake casing 1 by screw thread, pressure transducer 2 preestablishes certain pressure P, with the working stroke of control brake device piston 7.When friction plate assembly parts 8 or bearing support 15 may wear to a certain degree, it is big that gap between friction plate assembly parts 8 and the bearing support 15 becomes, brake plunger 7 is under the active force of high brake pressure oil, promote friction plate assembly parts 8 and shift to bearing support 15, when displacement distance surpasses normal travel, when promptly surpassing described critical localisation, the oil duct of brake casing 1 communicates with the through hole 11 at brake pressure sensor 2 places, hydraulic oil just can enter this through hole 11, produce certain pressure at this, when the pressure that produces reached the pressure of setting, pressure transducer 2 passed to the operator with this information, and prompting operation person takes certain measure.Thereby during bearing support 15 excessive wears that can overcome friction plate assembly parts 7 in the prior art or be in contact with it, the operator can not in time obtain the defective of information.
In order to overcome the defective that oil inlet hole stops up easily in the present technology, lubricant oil oil inlet hole 5 on the brake casing 1 that the utility model discloses and its below α (as shown in Figure 2) at angle, α value herein should both can guarantee that this lubricant oil oil inlet hole 5 was lower than the minimum level of lubricant oil, guaranteed again that before brake bush heavy wear the impurity such as iron filings that produce in the break can not stop up this oil inlet hole.
The calculating of α value: the height difference of establishing this oil inlet hole centre distance break center is a1, and the line at its center is a2, cos α=a1/a2 then, and the α that obtains thus is a maximum value; Generally speaking, be excessive wear during carrier wear 2mm, therefore, can calculate according to the volume of bearing support 17 heavy wears generation impurity and the internal diameter and the width of break, gained α value is a minimum value.According to the brake dimensions of design, can calculate 20 °≤α≤50 °, the utility model α is a best angle for desirable 30 °.
Thus, before the brake bush excessive wear, it is lubricated fully that this lubricant oil oil inlet hole has been protected the card break, prevents that friction plate from scrapping because of the too early wearing and tearing of oil starvation heating causing.
The pressure transducer 2 of the utility model announcement also is provided with pickup dust-proofing circle 12 with brake casing 1 joint as shown in Figure 3, Figure 4.
In addition, disk type braker also is provided with brake spring 14 and pin 10 (Fig. 3, shown in Figure 4).
Also be provided with bonded washer 16 (shown in Figure 2) on the brake oil union body 3.
Also be provided with O RunddichtringO 9,13 (Fig. 3, shown in Figure 4) between the inwall of brake casing 1 and the brake plunger 7.
The utility model is by being provided with a through hole at brake casing, a pressure transducer is set in through hole, the pressure of this pressure transducer can be adjusted setting in advance according to actual conditions, with the working stroke of control brake device piston, the position with the oilhole of the enterprising lubricant oil of break is located at the place angled with the housing minimum point simultaneously.
When the friction plate assembly parts of break or the carrier wear that is in contact with it, brake plunger is under the thrust of high brake pressure oil, promote the friction plate assembly parts and shift to bearing support, if friction plate assembly parts or bearing support excessive wear, make brake plunger displacement distance surpass normal travel, the oil pocket of break communicates with through hole, pressure oil just can enter through hole, produce certain oil pressure at this, when the oil pressure that produces reaches the oil pressure of this pressure transducer setting, this pressure transducer just passes to the operator with this information, to take appropriate measures, prevents brake failure.
In addition, when impurity such as iron filings is arranged in the break, will be deposited to the below of brake casing, and can not stop up the into oilhole of lubricant oil, guaranteed that lubricating oil path is unobstructed, made friction plate obtain cooling timely, prevented that it from causing too early wearing and tearing to be scrapped because of the oil starvation heating.
To sum up, the disk type braker that the utility model discloses, mainly be applicable to the braking maneuver mechanism of tractor, in the time of can effectively overcoming friction plate that above-mentioned existing disk type braker exists or the bearing support excessive wear that is in contact with it, the oil inlet hole that the operator can not in time obtain information and break stops up easily, the defective that causes wearing and tearing too early to be scrapped.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. disk type braker, comprise: brake casing, brake plunger, friction plate assembly parts, described brake casing is provided with the lubricant oil oil inlet hole, described brake plunger is arranged in the described brake casing, described friction plate assembly parts is arranged on the outer side surface of described brake plunger, it is characterized in that, also comprises a brake pressure sensor, one critical localisation of described brake casing is provided with a through hole, and described brake pressure sensor is arranged in the described through hole.
2. disk type braker according to claim 1 is characterized in that, the minimum point that described lubricant oil oil inlet hole is arranged on described brake casing has on the position of an angle α.
3. disk type braker according to claim 2 is characterized in that, described through hole is the variable cross section hole, and described brake pressure sensor is arranged on the outside of contiguous described brake casing.
4. disk type braker according to claim 3, it is characterized in that, described through hole comprises the outer sector hole that extended internally by the described brake casing outside and extends to interior sector hole in the described brake casing by described outer sector hole, the aperture of described outer sector hole is greater than the aperture of sector hole in described, and described brake pressure sensor is arranged in the described outer sector hole.
5. disk type braker according to claim 3 is characterized in that, described through hole is the multistage shoulder hole.
6. disk type braker according to claim 3 is characterized in that, described through hole is a taper hole.
7. according to claim 2,3,4,5 or 6 described disk type brakers, it is characterized in that described angle is 20 °≤α≤50 °.
8. according to claim 2,3,4,5 or 6 described disk type brakers, it is characterized in that described angle α is 30 °.
9. disk type braker according to claim 7 is characterized in that the joint of described pressure transducer and brake casing also is provided with the pickup dust-proofing circle.
10. disk type braker according to claim 8 is characterized in that the joint of described pressure transducer and brake casing also is provided with the pickup dust-proofing circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201283828U CN202032016U (en) | 2011-04-26 | 2011-04-26 | Disk brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201283828U CN202032016U (en) | 2011-04-26 | 2011-04-26 | Disk brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202032016U true CN202032016U (en) | 2011-11-09 |
Family
ID=44894314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201283828U Expired - Fee Related CN202032016U (en) | 2011-04-26 | 2011-04-26 | Disk brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202032016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306009A (en) * | 2020-03-18 | 2020-06-19 | 西安热工研究院有限公司 | Device and method for online measurement of abrasion loss of brake disc of fan yaw system |
-
2011
- 2011-04-26 CN CN2011201283828U patent/CN202032016U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306009A (en) * | 2020-03-18 | 2020-06-19 | 西安热工研究院有限公司 | Device and method for online measurement of abrasion loss of brake disc of fan yaw system |
| CN111306009B (en) * | 2020-03-18 | 2022-03-08 | 西安热工研究院有限公司 | Method for online measurement of abrasion loss of brake disc of fan yaw system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140426 |