CN203743261U - Normally closed type parking brake - Google Patents
Normally closed type parking brake Download PDFInfo
- Publication number
- CN203743261U CN203743261U CN201420103955.5U CN201420103955U CN203743261U CN 203743261 U CN203743261 U CN 203743261U CN 201420103955 U CN201420103955 U CN 201420103955U CN 203743261 U CN203743261 U CN 203743261U
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- China
- Prior art keywords
- piston
- piston cylinder
- friction plate
- brake piston
- spring
- 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 - Lifetime
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- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
A normally closed type parking brake is mainly composed of a spring seat cover, a piston cylinder, a piston cylinder seat, a friction plate assembly, a parking braking piston, an emergency braking piston and a driving spiral bevel gear. The spring seat cover and the piston cylinder seat are respectively fixed at two ends of the piston cylinder, the parking braking piston and the emergency braking piston are placed in the piston cylinder, the friction plate assembly is placed in the middle, a plurality of compression combination springs are installed between the spring seat cover and the parking braking piston, the emergency braking piston is installed on the piston cylinder seat through a bolt, an elastic sleeve and the compression combination springs, and the other side of the emergency braking piston presses the friction plate assembly. The normally closed type parking brake has the advantages of integrating parking braking and emergency braking, being capable of effectively improving underground mining vehicle safety, having stability and reliability in braking and being small in occupied space.
Description
Technical field
The utility model relates to a kind of Normally closed type parking brake, for motor vehicle Normally closed type parking brake of especially a kind of Underground Mine, belongs to automobile-used braking technology field.
Background technique
For Underground Mine vehicle, should possess service brake, emergency braking and stopping brake three from security standpoint and overlap braking system, and their Effector must be separate, wherein stop device should adopt mechanical drive mechanism, can not adopt hydraulic pressure or air pressure to drive, in order to avoid produce fault.In the time of hydraulic system decompression (vehicle is in vehicle stop state, and vehicle motor breaks down, hydraulic pipe line cruelly split etc.), thereby promoting piston, Compress Spring friction plate is compressed produce braking function.Cause handle structure too complicated because prior art must adopt three cover independent brake systems, also increased the layout difficulty in complete machine space simultaneously.
Model utility content
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of rational in infrastructure, and operational safety is good, integrate stopping brake and emergency braking, can effectively improve Underground Mine vehicle safety, braking is steadily reliable, the Normally closed type parking brake occupying little space.
The purpose of this utility model completes by following technical solution, described a kind of Normally closed type parking brake, it is mainly made up of spring flap, piston cylinder, piston cylinder seat, friction plate combination, stopping brake piston, emergency brake piston and active spiral bevel gear, it is characterized in that described piston cylinder two ends are fixed wtih respectively spring flap and piston cylinder seat, in piston cylinder, be mounted with stopping brake piston and emergency brake piston, and between stopping brake piston and emergency brake piston, be mounted with a friction plate combination;
Spring flap and described stopping brake piston space are provided with many group compression cluster springs, and the acting force of the spring of described compression cluster spring under normal state is pressed in described friction plate combination described stopping brake piston top, and the external splines steel disc in wherein said friction plate combination is connected with the internal spline on described piston cylinder;
Described emergency brake piston is by bolt, elastic sleeve and compression combination spring fitting on described piston cylinder seat, and described emergency brake piston another side compresses described friction plate combination;
Whole brake inside power is transmitted by active spiral bevel gear, and described active spiral bevel gear is installed on described piston cylinder seat by bearing, and its other end is input flange; Initiatively the centre of spiral bevel gear is connected with a spacer shell by spline, and described spacer shell is connected with the internal spline friction plate in friction plate combination by spline;
The opposite side of the relative spring flap of described stopping brake piston is provided with first oil pocket that stopping brake piston can be pushed to spring flap one side; Described emergency brake piston is near being provided with second oil pocket that emergency brake piston can be pushed to friction plate combination on piston cylinder seat; Described the first oil pocket is connected with external high pressure oil pipe by tubing interface with the second oil pocket.
Spring flap described in the utility model is bolted on one end of described piston cylinder, and described piston cylinder seat is also bolted on the other end of piston cylinder; Described active spiral bevel gear is installed on described piston cylinder seat by two tapered roller bearings, and input flange is arranged on the described active spiral bevel gear the other end by spline and locking nut.
Spring seat described in the utility model covers by a nut and is fixed with in laterally inserted piston cylinder and is connected to the brake off bolt on stopping brake piston.
The utility model is mainly used in ransaxle central transmission input end, turns round because axle reduction increases, and compares the existing structure that is applied to drive axle wheel edge, and the braking required braking force of complete machine and oil pressure all have to a certain degree reduction, and structure is small and exquisite, easy for installation; It has rational in infrastructure, and operational safety is good, integrates stopping brake and emergency braking, can effectively improve Underground Mine vehicle safety, and braking is steadily reliable, and the feature such as occupy little space.
Brief description of the drawings
Fig. 1 is embodiment's profile schematic diagram of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is sectional structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1-3, Normally closed type parking brake described in the utility model, it is mainly by spring flap 4, piston cylinder 6, piston cylinder seat 10, friction plate combination 7, stopping brake piston 5, emergency brake piston 8 and initiatively spiral bevel gear 11 form, it is characterized in that described piston cylinder 6 two ends are fixed wtih respectively spring flap 4 and piston cylinder seat 10, in piston cylinder, be mounted with stopping brake piston 5 and emergency brake piston 8, and between stopping brake piston 5 and emergency brake piston 8, be mounted with a friction plate combination 7,
Spring flap 4 and described stopping brake piston space are provided with many group compression cluster springs, and the acting force of the spring of described compression cluster spring under normal state is pressed in described friction plate combination described stopping brake piston top, and the external splines steel disc in wherein said friction plate combination is connected with the internal spline on described piston cylinder;
Described emergency brake piston is arranged on described piston cylinder seat 10 by bolt 14, elastic sleeve 13 and compression cluster spring 9, and described emergency brake piston another side compresses described friction plate combination;
Described active spiral bevel gear 11 is installed on described piston cylinder seat 10 by bearing, and its other end is input flange 1; Initiatively the centre of spiral bevel gear 11 is connected with a spacer shell 15 by spline, and described spacer shell 15 is connected with the internal spline friction plate in friction plate combination by spline;
The opposite side of described stopping brake piston 5 relative spring flaps 4 is provided with first oil pocket that stopping brake piston can be pushed to spring flap 4 one sides; Described emergency brake piston 8 is near being provided with second oil pocket that emergency brake piston can be pushed to friction plate combination 7 on piston cylinder seat; Described the first oil pocket is connected with external high pressure oil pipe by tubing interface with the second oil pocket.
Spring flap 4 described in the utility model is fixed on by bolt 3 on one end of described piston cylinder 6, and described piston cylinder seat 10 is also bolted on the other end of piston cylinder 6; Described active spiral bevel gear 11 is installed on described piston cylinder seat 10 by two tapered roller bearings 18,12, and input flange 1 is arranged on the described active spiral bevel gear the other end by spline and locking nut 19.
Described spring seat covers by a nut 17 and is fixed with in laterally inserted piston cylinder and is connected to the brake off bolt 16 on stopping brake piston.
The utility model is by described input flange external connection power input original paper, and specific works principle is: in the time that complete machine starts, pass through tubing interface, as shown in Figure 1; The first oil pocket that high pressure oil is injected to sealing, now described stopping brake piston combine away from described friction plate, removes stopping brake, thus power passes to via described active spiral bevel gear on the driven gear of ransaxle inside and drives complete machine to walk.Compress described friction plate combination by described stopping brake piston and produce braking function thereby be distributed in described Compress Spring that described spring seat covers in the time of system oil-break, parking brake function comes into force automatically.In the time occurring that situation needs emergency braking in driving, inject high pressure oil by tubing interface to the second oil pocket of sealing, oil pressure promotes described emergency brake piston and compresses described friction plate combination results braking function, oil pressure unloads rear described emergency brake piston and resets under the effect of compression cluster spring 9, and braking force disappears.When complete machine breaks down need to move time, now parking brake is in braking state, on described stopping brake piston, be threaded connection brake off bolt 16, tighten and be distributed in the nut 17 that described spring seat covers, under threaded function, described stopping brake piston combines away from described friction plate, and braking force disappears.
Claims (3)
1. a Normally closed type parking brake, it is mainly made up of spring flap, piston cylinder (6), piston cylinder seat (10), friction plate combination (7), stopping brake piston (5), emergency brake piston (8) and active spiral bevel gear (11), it is characterized in that described piston cylinder (6) two ends are fixed wtih respectively spring flap (4) and piston cylinder seat (10), in piston cylinder, be mounted with stopping brake piston (5) and emergency brake piston (8), and between stopping brake piston (5) and emergency brake piston (8), be mounted with a friction plate combination (7);
Spring flap (4) and described stopping brake piston space are provided with many group compression cluster springs, and the acting force of the spring of described compression cluster spring under normal state is pressed in described friction plate combination described stopping brake piston top, and the external splines steel disc in wherein said friction plate combination is connected with the internal spline on described piston cylinder;
It is upper that described emergency brake piston is arranged on described piston cylinder seat (10) by bolt (14), elastic sleeve (13) and compression cluster spring (9), and described emergency brake piston another side compresses described friction plate combination;
It is upper that described active spiral bevel gear (11) is installed described piston cylinder seat (10) by bearing, and its other end is input flange (1); Initiatively the centre of spiral bevel gear (11) is connected with a spacer shell (15) by spline, and described spacer shell (15) is connected with the internal spline friction plate in friction plate combination by spline;
Described stopping brake piston (5) the relatively opposite side of spring flap (4) is provided with first oil pocket that stopping brake piston can be pushed to spring flap (4) one sides; Described emergency brake piston (8) is near being provided with second oil pocket that emergency brake piston can be pushed to friction plate combination (7) on piston cylinder seat; Described the first oil pocket is connected with external high pressure oil pipe by tubing interface with the second oil pocket.
2. Normally closed type parking brake according to claim 1, it is characterized in that described spring flap (4) is fixed on one end of described piston cylinder (6) by bolt (3), described piston cylinder seat (10) is also bolted on the other end of piston cylinder (6); It is upper that described active spiral bevel gear (11) is installed described piston cylinder seat (10) by two tapered roller bearings (18,12), and input flange (1) is arranged on the described active spiral bevel gear the other end by spline and locking nut (19).
3. Normally closed type parking brake according to claim 1 and 2, the spring seat described in it is characterized in that covers by a nut (17) and is fixed with in laterally inserted piston cylinder and is connected to the brake off bolt (16) on stopping brake piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103955.5U CN203743261U (en) | 2014-03-10 | 2014-03-10 | Normally closed type parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103955.5U CN203743261U (en) | 2014-03-10 | 2014-03-10 | Normally closed type parking brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743261U true CN203743261U (en) | 2014-07-30 |
Family
ID=51343064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103955.5U Expired - Lifetime CN203743261U (en) | 2014-03-10 | 2014-03-10 | Normally closed type parking brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925318A (en) * | 2014-03-10 | 2014-07-16 | 杭州前进齿轮箱集团股份有限公司 | Normally closed parking brake |
-
2014
- 2014-03-10 CN CN201420103955.5U patent/CN203743261U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925318A (en) * | 2014-03-10 | 2014-07-16 | 杭州前进齿轮箱集团股份有限公司 | Normally closed parking brake |
| CN103925318B (en) * | 2014-03-10 | 2017-01-18 | 杭州前进齿轮箱集团股份有限公司 | Normally closed parking brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |