CN105402285A - Hydraulic brake device - Google Patents
Hydraulic brake device Download PDFInfo
- Publication number
- CN105402285A CN105402285A CN201510807041.6A CN201510807041A CN105402285A CN 105402285 A CN105402285 A CN 105402285A CN 201510807041 A CN201510807041 A CN 201510807041A CN 105402285 A CN105402285 A CN 105402285A
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- hydraulic brake
- brake system
- body shell
- output shaft
- steel disc
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Abstract
The invention relates to a hydraulic brake device and belongs to the technical field of hydraulic transmission. The hydraulic brake device mainly comprises an output shaft, a body shell, a seam allowance cover, bearings, a piston, a spring, a friction pair and the like. The two bearings are installed on the output shaft. One of the bearings is installed in the body shell, and the other bearing is installed on the seam allowance cover. The bearings are full-capacity roller bearings. Each roller bearing is formed by assembling a roller and a supporting body. Each supporting body is machined into a whole and can bear large radial force and bidirectional axial force. The overall structure is simple, the axial-direction size is short, the hydraulic brake device can bear large radial force and bidirectional axial force, and manufacturing, assembling and maintaining manufacturability is good.
Description
Technical field
The present invention relates to a kind of hydraulic brake system, especially a kind of Normally closed type has the hydraulic brake system of compact structure, belongs to hydraulic transmission technology field.
Background technique
Hydraulic brake system application area is very extensive, general employing Normally closed type mode of braking, the hydraulic brake system of supporting application is driven with cycloid hydraulic motor, can independently use, its structure its axial dimension general is longer, adopt ball bearing to support brake axle, the comparatively large and braking torque of the general axial dimension of its structure is lower than 650Nm; Also some braking torque reaches more than 1000Nm, but its radial direction all comparatively becomes larger with axial dimension, do not match with the hydraulic system of cycloid hydraulic motor Direct driver, be unfavorable for compact structure and the high market demand of overall price/performance ratio, the integrated demand of hydraulic system as electrically driven (operated) in lift platform, especially it additionally needs to bear large radial load.
Summary of the invention
The object of the invention is: for above-mentioned prior art Problems existing, a kind of new structure is proposed very compact, especially axial distance is short, braking torque can reach 2000Nm, and there is a kind of hydraulic brake system of larger radial load ability to bear, its structure is simple, anufacturability good, assembling and maintenance process good.
In order to achieve the above object, claimant is by the structural analysis to the prior art of hydraulic brake system, find out the structure improving hydraulic brake system radial force ability to bear, at maintenance hydraulic brake system axial dimension under the short and simple prerequisite of structure, following technological scheme of the present invention is proposed: a kind of hydraulic brake system is fixedly connected with by body shell the hydraulic oil cavity body formed with seam lid, described reservoir body is shaped with axial drain tap, described seam lid is shaped with drain tap, the shaft seal that described body shell is installed carries out rotary seal to output shaft, the output shaft that outer end extends out is equipped with in described body shell one end, in described reservoir body, friction pair is housed, piston and spring, described spring is resisted against seam and covers, its improvements are: two bearings have been installed in described output shaft front end and back end, described two bearings are all full dress roller bearing, the described roller bearing that completely fills is formed by roller and support two kinds of Assembly of the parts, described support is the cirque body of indent, described roller is arranged on the interior recess of support.
Described support is the entirety of machining.
Described completely dress roller bearing is the symplex structure of radial cross section.
A bearing of described two bearings is arranged in body shell, and another bearing is arranged on seam and covers.
Described piston is large piston cylinder and the small piston cylinder formation of L-type, and the transition of described large piston cylinder and small piston cylinder is concave inward structure, and the cavity of described body shell has the concave inward structure adapted with piston.
Be provided with Steel Lagging between the large piston cylinder of described piston and seam lid, described spring is arranged in the cavity volume that seam lid and body housing hole formed, and is resisted against on Steel Lagging.
Described friction pair is made up of friction plate and steel disc, and described steel disc is matched by the semicircle of the semicircle of multiple protrusion with the multiple recessed of body shell, and described friction plate is matched with the involute outer spline tooth of output shaft by involute internal spline gear.
It is that the protrusion semicircle of described steel disc and steel disc cylindrical are by vertical angle transition that the present invention further improves.
Compared with the hydraulic brake system of prior art, technological scheme structure of the present invention is very compact, axial dimension is short, the shaft extension of output shaft can bear larger radial force, make output shaft to bear bidirectional axial force because full dress roller bearing can bear certain axial force, overall structure be simple, anufacturability good, assembling and maintenance process good.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the structural representation of one embodiment of the invention.
Slotted nut 1 in figure, output shaft 2, key 3, shaft seal 4, body shell 5, bearing 6, steel disc 7, friction plate 8, piston 9, O type circle 10, little back-up ring 11, large back-up ring 12, O type circle 13, Steel Lagging 14, spring 15, O type circle 16, bolt 17, seam lid 18, pad 19, plug 20.
Fig. 2 is a kind of structural representation of break steel disc in Fig. 1 embodiment.
embodiment one
As shown in Figure 1, mainly comprise output shaft 2, body shell 5, seam lid 18, bearing 6, piston 9, spring 15 and friction pair etc., described friction pair is made up of steel disc 7 and friction plate 8 basic structure of the hydraulic brake system of the present embodiment,
Output shaft is contacted by friction pair motion and body shell and is integrated.
A kind of hydraulic brake system is as shown in Figure 1 fixed together by bolt 17 by body shell 5 and seam lid 18, form the hydraulic oil cavity body of hydraulic brake system, described seam lid 18 is shaped with axial drain tap, drain tap is sealed by pad 19 and plug 20, drain tap is done to change lubricating oil and is used after hydraulic brake system uses appropriate time, described output shaft 2 adopts the shaft seal 4 be arranged on body shell 5 to carry out rotary seal, the output shaft 2 that outer end extends out is equipped with in one end of described body shell 5, in hydraulic oil cavity body, friction pair is housed, piston 9 and spring 15, described spring 15 is resisted against on seam lid 18, the installation positioning spigot of hydraulic brake system is arranged on seam lid 18, two bearings 6 have been installed in described output shaft 2 front end and back end, described two bearings 6 are all full dress roller bearing can bear large radial force, the described roller bearing that completely fills is formed by multiple roller and support two kinds of Assembly of the parts, described support is the cirque body of indent, described roller is arranged on the interior recess of support.After the indent installation roller of support, the two ends step supporting roller of indent, described support is by the entirety of Bearing Steel through machining, instead of the plate stamping usually adopted forms, and this makes bearing can bear certain bidirectional axial force.The described structure completely filling roller bearing makes hydraulic brake system have good assembling capacity and maintainalbility.
Described completely dress roller bearing is the symplex structure of radial cross section, and the support of indent is symplex structure, ensure that the axial force that the two ends of bearing 6 are born is identical.
The shaft extension of the extending end of the body shell 5 of output shaft 2 can bear large radial force load, is jointly born by two bearings 6, and a bearing of described two bearings 6 is arranged in body shell 5, and this bearing bears the main radial force on output shaft 2; Another bearing 6 is arranged on seam lid 18, and this bearing bears the secondary radial force on output shaft 2.
Seam lid 18 can arrange suitable lightening hole, or suitable loss of weight annular groove is set substitutes aforementioned lightening hole.
Piston 9 is made up of large piston cylinder and small piston cylinder, the profile of piston 9 in L-type, the transition position of described large piston cylinder and small piston cylinder is concave inward structure, and to have concave inward structure corresponding with body shell 5 cavity, and this structure effectively can reduce the axial distance of hydraulic brake system.
Piston 9 is matched with the size piston hole of body shell 5 respectively by large piston cylinder and small piston cylinder, and large piston cylinder is sealed by the assemblying body of large back-up ring 12 and O type circle 13, and small piston cylinder is sealed by the assemblying body of O type circle 10 and little back-up ring 11.The internal diameter of large back-up ring 12 is resisted against on O type circle 13, and the external diameter of large back-up ring 12 is resisted against on the large piston hole of body shell 5, and O type circle 13 extrudes large back-up ring 12 and carries out high pressure sealing; Equally, the internal diameter of little back-up ring 11 is resisted against on O type circle 10, and the external diameter of little back-up ring 11 is resisted against on the small piston hole of body shell 5, and O type circle 10 extrudes little back-up ring 11 and carries out high pressure sealing.Profile one end cylinder of the close L-type of the installation sealing group zoarium of the large piston cylinder of piston 9 is less than the other end cylinder, equally, profile one end cylinder of the close L-type of the installation sealing group zoarium of the small piston cylinder of piston 9 is less than the other end cylinder, so that piston 9 is installed.
The large piston cylinder of piston 9 and the transition portion of small piston cylinder L-type form seal chamber with coordinating between cylinder of body shell 5, and the brake oil liberation port processed with body shell 5 radial direction is linked up mutually.
Steel Lagging 14 is provided with between the large piston cylinder of piston 9 and seam lid 18, on the piston 9 that the active force of spring 15 is acted on uniformly, described Steel Lagging 14 is thin-slab structure annular, in the cavity volume that the hole that described spring 15 is arranged on seam lid 18 and body shell 5 is formed, and is resisted against on Steel Lagging 14.
Described friction pair forms as shown in Figure 2 by polylith friction plate 8 and polylith steel disc 7, described steel disc 7 is matched by the semicircle of the semicircle of multiple protrusion with the multiple recessed of body shell 5, circumferencial direction carries out to steel disc 7 spacing, described friction plate 8 is matched with the involute outer spline tooth of output shaft by involute internal spline gear, carry out circumferencial direction to friction plate 8 spacing, described friction plate 8 involute internal spline gear can be replaced rectangular spline and can be replaced rectangular spline with the involute outer spline tooth of output shaft 2 and match.
To steel disc 7 further improve be the protrusion semicircle of described steel disc 7 and steel disc cylindrical by vertical angle transition, make steel disc 7 can more be convenient to be arranged in the cavity of body shell 5, do not produce possible interference, friction pair motion is reliable.
Protrusion semicircle and the steel disc cylindrical of described steel disc 7 are changed to recessed round-corner transition by vertical angle transition.
In addition to the implementation, the present invention can also have other mode of executions.Replace with friction plate 8 be connected with the protrusion semicircle of body shell 5 as steel disc 7 is connected with the protrusion semicircle of body shell 5; equally; friction plate 8 is connected with the spline of output shaft 2 and replaces with steel disc 7 and be connected with the spline spline of output shaft 2; all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (10)
1. a hydraulic brake system, mainly comprise and be fixedly connected with by body shell the hydraulic oil cavity body formed with seam lid, described reservoir body is shaped with axial drain tap, described seam lid is shaped with drain tap, the shaft seal that described body shell is installed carries out rotary seal to output shaft, the output shaft that outer end extends out is equipped with in described body shell one end, in described reservoir body, friction pair is housed, piston and spring, described spring is resisted against seam and covers, it is characterized in that: two bearings have been installed in described output shaft front end and back end, described two bearings are all full dress roller bearing, the described roller bearing that completely fills is formed by roller and support two kinds of Assembly of the parts, described support is the cirque body of indent, described roller is arranged on the interior recess of support.
2. a kind of hydraulic brake system according to claim 1, is characterized in that: described support is the entirety of machining, and described completely dress roller bearing is the symplex structure of radial cross section.
3. a kind of hydraulic brake system according to claim 2, is characterized in that: a bearing of described two bearings is arranged in body shell, and another bearing is arranged on seam and covers.
4. a kind of hydraulic brake system according to claim 3, it is characterized in that: described piston is large piston cylinder and the small piston cylinder formation of L-type, the transition of described large piston cylinder and small piston cylinder is concave inward structure, and the cavity of described body shell has the concave inward structure adapted with piston.
5. a kind of hydraulic brake system according to claim 4, is characterized in that: be provided with Steel Lagging between the large piston cylinder of described piston and seam lid, and described spring is arranged in the cavity volume that seam lid and body housing hole formed, and is resisted against on Steel Lagging.
6. a kind of hydraulic brake system according to claim 5, is characterized in that: described friction pair is made up of friction plate and steel disc, and described steel disc is matched by the semicircle of the semicircle of multiple protrusion with the multiple recessed of body shell.
7. a kind of hydraulic brake system according to claim 6, is characterized in that: the protrusion semicircle of described steel disc and steel disc cylindrical are by vertical angle transition.
8. a kind of hydraulic brake system according to claim 7, is characterized in that: protrusion semicircle and the steel disc cylindrical of described steel disc are changed to recessed round-corner transition by vertical angle transition.
9. a kind of hydraulic brake system according to claim 6, is characterized in that: described friction plate is matched with the involute outer spline tooth of output shaft by involute internal spline gear.
10. a kind of hydraulic brake system according to claim 9, is characterized in that: described friction plate involute internal spline gear replaces with rectangular spline, and the involute outer spline tooth of described output shaft replaces with rectangular spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807041.6A CN105402285A (en) | 2015-11-22 | 2015-11-22 | Hydraulic brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807041.6A CN105402285A (en) | 2015-11-22 | 2015-11-22 | Hydraulic brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402285A true CN105402285A (en) | 2016-03-16 |
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ID=55467971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510807041.6A Pending CN105402285A (en) | 2015-11-22 | 2015-11-22 | Hydraulic brake device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105402285A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191514A (en) * | 2017-07-01 | 2017-09-22 | 镇江大力液压马达股份有限公司 | A kind of static hydraulic brake system |
| CN107956636A (en) * | 2018-01-18 | 2018-04-24 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake motor |
| CN107989929A (en) * | 2017-12-12 | 2018-05-04 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake system |
| CN110369977A (en) * | 2019-07-25 | 2019-10-25 | 浙江耐磨达汽车部件有限公司 | A kind of processing technology of disk-type braking gland |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405835B1 (en) * | 1999-05-07 | 2002-06-18 | Hitachi Construction Machinery Co., Ltd. | Hydraulic motor with brake device |
| CN203585160U (en) * | 2013-12-13 | 2014-05-07 | 济宁科尔森液压有限公司 | Complete disc type wet hydraulic brake |
| CN205226168U (en) * | 2015-11-22 | 2016-05-11 | 镇江大力液压马达股份有限公司 | Hydraulic braking device |
-
2015
- 2015-11-22 CN CN201510807041.6A patent/CN105402285A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405835B1 (en) * | 1999-05-07 | 2002-06-18 | Hitachi Construction Machinery Co., Ltd. | Hydraulic motor with brake device |
| CN203585160U (en) * | 2013-12-13 | 2014-05-07 | 济宁科尔森液压有限公司 | Complete disc type wet hydraulic brake |
| CN205226168U (en) * | 2015-11-22 | 2016-05-11 | 镇江大力液压马达股份有限公司 | Hydraulic braking device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191514A (en) * | 2017-07-01 | 2017-09-22 | 镇江大力液压马达股份有限公司 | A kind of static hydraulic brake system |
| CN107989929A (en) * | 2017-12-12 | 2018-05-04 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake system |
| CN107956636A (en) * | 2018-01-18 | 2018-04-24 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake motor |
| CN110369977A (en) * | 2019-07-25 | 2019-10-25 | 浙江耐磨达汽车部件有限公司 | A kind of processing technology of disk-type braking gland |
| CN110369977B (en) * | 2019-07-25 | 2021-12-07 | 浙江耐磨达科技有限公司 | Machining process of disc type brake lining |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160316 |