CN207879927U - A kind of hydraulic brake system - Google Patents
A kind of hydraulic brake system Download PDFInfo
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- CN207879927U CN207879927U CN201721725257.9U CN201721725257U CN207879927U CN 207879927 U CN207879927 U CN 207879927U CN 201721725257 U CN201721725257 U CN 201721725257U CN 207879927 U CN207879927 U CN 207879927U
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- output shaft
- axle
- hydraulic brake
- brake system
- axis
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Abstract
The utility model is related to a kind of hydraulic brake systems, belong to hydraulic transmission technology field.The hydraulic brake system of the utility model includes mainly output shaft, body shell, seam allowance lid, bearing, piston, spring and friction pair etc., two bearings are installed on the output shaft, one bearing is mounted in body shell, another bearing is covered mounted on seam allowance, the bearing is all full dress roller bearing, the axis stretches disc and uses big rounding transition, and the installation diameter of axle of the axle envelope shelves of the output shaft uses small rounding transition with big rounding.The overall structure of the utility model is simple, and axial dimension is short, can bear big radial load and bidirectional axial force, and manufacture, assembly and maintenance process are good.
Description
Technical field
The utility model is related to a kind of hydraulic brake system, especially a kind of normally closed type has the hydraulic braking of cramped construction
Device belongs to hydraulic transmission technology field.
Background technology
Hydraulic brake system application range is very extensive, generally uses normally closed type mode of braking, is driven with cycloid hydraulic motor
The hydraulic brake system for moving mating application, it is longer to be independently operated, its general axial dimension of its structure, is supported and is made using ball bearing
Moving axis, the general axial dimension of structure is larger and braking torque is less than 650Nm；Also some braking torques reach 1000Nm or more,
But it radially relatively becomes much larger with axial dimension, is not matched that with the hydraulic system that cycloid hydraulic motor directly drives, unfavorable
In compact-sized with the high market demand of overall cost-effective performance, such as the integrated demand of the electrically driven (operated) hydraulic system of hoistable platform, especially
It is that it is additionally required and bears big radial load, and the limitation of its axially compact structure is unfavorable for it and bears big radial load.
Invention content
The utility model aim is：In view of the above-mentioned problems of the prior art, proposing that a kind of new structure is very tight
It gathers, particularly axially apart from short, maximum braking torque may be up to 2000Nm, and one kind with larger radial load ability to bear
Hydraulic brake system, it is simple in structure, anufacturability is good, assembly is good with maintenance process, and to stretch intensity high rigidity good for axis,
Structure heat treatment performance is good.
In order to achieve the above object, applicant is found out and is carried by the structural analysis of the prior art to hydraulic brake system
The structure of high hydraulic brake system radial load ability to bear, keep hydraulic brake system axial dimension it is short and its simple in structure and
Under the premise of installation dimension is constant, following the technical solution of the utility model is proposed：A kind of hydraulic brake system is by body shell and only
Lid is fixedly connected with the hydraulic oil cavity body of composition, and axial drain tap is formed in the reservoir body, and the seam allowance lid, which is formed with, to be let out
Hydraulic fluid port, the axle envelope installed in the body shell carry out rotatory sealing to output shaft, what described body shell one end was extended out equipped with outer end
Output shaft, equipped with friction, secondary, piston and spring, the spring are resisted against seam allowance and cover in the reservoir body, and improvements exist
In：The fore bearing installation diameter of axle of the output shaft is identical as the installation diameter of axle of axle envelope shelves.
The fore bearing installation diameter of axle of the output shaft is more than the diameter of axle that output shaft axis is stretched, and the axis stretches disc using greatly
Circle transition, and the installation diameter of axle of the axle envelope shelves of the output shaft uses small rounding transition, further, the output with big rounding
The output shaft axis of axis is stretched for axis of cone connection type, and rotation torque driving, axis of cone big end circle are carried out using the conical surface and flat key
Face uses big rounding transition, and the installation diameter of axle of the axle envelope shelves of the output shaft uses small rounding transition with big rounding.
The output shaft front and back end is mounted with that two bearings, described two bearings are all full dress roller bearing, the full dress
Roller bearing is formed by the two kinds of component assemblies of roller and supporter, and the supporter is the torus of indent, the roller installation
In the interior recess of supporter, the supporter is whole made of grinding after being heat-treated.
Former and later two described bearings are the full dress roller bearing of same specification.
The full dress roller bearing structure can bear radial load and axial force simultaneously.
Compared with the hydraulic brake system of the prior art, the technical solution of the utility model structure is extremely compact, axial ruler
Very little short, the axis of output shaft stretches the radial load that can bear bigger, the transition structure of the Rouno Cormer Pregrinding Wheel due to using the big disc of the axis of cone, and ten
Divide the heat treatment stress concentration problem for cleverly solving traditional double step transition, while overcoming traditional axis of cone big end disc
Longer problem, to further enhance the intensity and rigidity that axis is stretched in structure, overall structure is simple, anufacturability is good, dress
With good with maintenance process.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Slotted nut 1 in figure, output shaft 2, key 3, axle envelope 4, body shell 5, bearing 6, steel disc 7, friction plate 8, piston 9, O-ring
10, small baffle ring 11, big baffle ring 12, O-ring 13, steel shoe 14, spring 15, O-ring 16, bolt 17, seam allowance lid 18, gasket 19,
Plug 20.
Specific implementation mode
Embodiment one
The basic structure of the hydraulic brake system of the present embodiment is as shown in Figure 1, include mainly output shaft 2, body shell 5, seam allowance
Lid 18, bearing 6, piston 9, spring 15 and friction pair etc., the friction is secondary to be made of steel disc 7 and friction plate 8,
Output shaft is contacted with body shell by the secondary motion that rubs and is integrated, and axis of cone one end of hydraulic brake system output shaft 2 is
Before, after one end of seam allowance lid 18 is.
A kind of hydraulic brake system as shown in Figure 1 is fixed together by body shell 5 and seam allowance lid 18 by bolt 17,
The hydraulic oil cavity body of hydraulic brake system is constituted, the seam allowance lid 18 is formed with axial drain tap, and drain tap is by 19 He of gasket
Plug 20 is sealed, and drain tap is made to replace lubricating oil use after hydraulic brake system is using appropriate time, and described is defeated
Shaft 2 carries out rotatory sealing using the axle envelope 4 being mounted in body shell 5, and one end of the body shell 5 extends out defeated equipped with outer end
Shaft 2, equipped with friction, secondary, piston 9 and spring 15, the spring 15 are resisted against on seam allowance lid 18 in hydraulic oil cavity body, hydraulic pressure
The installation positioning spigot of brake apparatus is arranged on seam allowance lid 18.
The fore bearing installation diameter of axle of the output shaft 2 is identical as the installation diameter of axle of axle envelope shelves, i.e. the installation diameter of axle of fore bearing 6
The installation diameter of axle with axle envelope 4 is the same diameter of axle.
The fore bearing 6 of the output shaft 2 installs the diameter of axle and is more than the diameter of axle that 2 axis of output shaft is stretched, and the axis is stretched to pacify with client
The output shaft part that axle sleeve matches is filled, the axis stretches disc and uses big rounding transition, and the peace of the axle envelope shelves of the output shaft
It fills the diameter of axle and uses small rounding transition with big rounding；Further, the output shaft axis of the output shaft 2 is stretched for axis of cone connection type,
Rotation torque driving is carried out using the conical surface and flat key, the axis of cone big end disc uses big rounding transition, and the output shaft
The installation diameter of axle and the big rounding of axle envelope shelves use small rounding transition.
The installation diameter of axle of output shaft 2 of the axle envelope 4 is Φ 41.35,5 mounting hole of body shell is Φ 54；The output shaft 2
It is the axis of cone that axis, which stretches structure, and the outside diameter of the axis of cone is Φ 38.1, taper 1：8.
2 front and back end of the output shaft is mounted with two bearings 6, and described two bearings 6 are all full dress roller bearing, described full
Dress roller bearing is formed by the two kinds of component assemblies of roller and supporter, and the supporter is the torus of indent, the roller peace
Mounted in the interior recess of supporter, the supporter is whole made of grinding after being heat-treated.
Former and later two described bearings 6 are the full dress roller bearing of same specification.
The full dress roller bearing structure can bear radial load and axial force simultaneously.
2 front and back end of output shaft is mounted with two bearings 6, and described two bearings 6 are all that full dress roller bearing can be with
Big radial load is born, the completely dress roller bearing is formed by the two kinds of component assemblies of multiple rollers and supporter, the supporter
For the torus of indent, the roller is mounted on the interior recess of supporter.After the indent installation roller of supporter, the both ends of indent
Step supporting roller, the supporter are by bearing steel through whole made of over mechanical processing, rather than the plate of generally use
Material is stamped to form, this enables bearing to bear certain bidirectional axial force.The structure of the completely dress roller bearing makes hydraulic pressure
Brake apparatus has good assembling capacity and maintenanceability.
The axis of the elongated end of the body shell 5 of output shaft 2, which is stretched, can bear big radial load load, be held jointly by former and later two bearings 6
By a fore bearing of described two bearings 6 is mounted in body shell 5, which bears the primarily radially power on output shaft 2；Separately
One fore bearing 6 is mounted on seam allowance lid 18, which bears the secondary radial load on output shaft 2.
Lightening hole appropriate can be set on seam allowance lid 18, or the suitable loss of weight annular groove of setting substitutes aforementioned lightening hole.
Piston 9 is made of big piston cylinder and valve piston cylinder, the L-shaped shape of piston 9, the big piston cylinder and small
The transition position of piston cylinder is concave inward structure, has concave inward structure corresponding with 5 cavity of body shell, which can effectively reduce
The axial distance of hydraulic brake system.
Piston 9 is matched with the size piston hole of body shell 5 respectively by big piston cylinder and valve piston cylinder, big piston cylinder
It is sealed by the assembly of big baffle ring 12 and O-ring 13, valve piston cylinder is carried out by the assembly of O-ring 10 and small baffle ring 11
Sealing.The internal diameter of big baffle ring 12 is resisted against on O-ring 13, and the outer diameter of big baffle ring 12 is resisted against on the big piston hole of body shell 5, O-shaped
Circle 13 squeezes big baffle ring 12 and carries out high pressure sealing；Equally, the internal diameter of small baffle ring 11 is resisted against on O-ring 10, small baffle ring 11
Outer diameter is resisted against on the valve piston hole of body shell 5, and O-ring 10 squeezes small baffle ring 11 and carries out high pressure sealing.The big piston boit of piston 9
Shape one end cylinder of the close L-type of the installation sealing group zoarium of body is smaller than other end cylinder, equally, the valve piston column of piston 9
Shape one end cylinder of the close L-type of the installation sealing group zoarium of body is smaller than other end cylinder, in order to which piston 9 is installed.
It is formed between the big piston cylinder of piston 9 and the transition portion of valve piston cylinder L-type and the cooperation cylinder of body shell 5 close
Cavity is sealed, the brake oil liberation port radially processed with body shell 5 is mutually linked up.
Steel shoe 14 is provided between the big piston cylinder and seam allowance lid 18 of piston 9 so that the active force of spring 15 is uniform
Effect piston 9 on, the steel shoe 14 is thin-slab structure annular, and the spring 15 is arranged in seam allowance lid 18 and body shell 5
In the vessel that hole is formed, and it is resisted against on steel shoe 14.
The friction is secondary to be made of polylith friction plate 8 and polylith steel disc 7, the steel disc 7 by the semicircles of multiple protrusions with
Multiple recessed semicircles of body shell 5 match, and carry out circumferencial direction limit to steel disc 7, the friction plate 8 passes through flower in involute
Key teeth is matched with the involute outer spline tooth of output shaft, and circumferencial direction limit is carried out to friction plate 8.
In addition to the implementation, the utility model can also have other embodiment.Such as steel disc 7 and the protrusion of body shell 5 half
Circle, which is connected, replaces with that friction plate 8 is connected with the casting rectangular structure of body shell 5 or bearing bore diameter suitably adjusts, all uses etc.
With the technical solution replaced or equivalent transformation is formed, the protection domain of the requires of the utility model is all fallen within.
Claims (10)
1. a kind of hydraulic brake system includes mainly being fixedly connected with the hydraulic oil cavity body constituted with seam allowance lid by body shell, described
Be formed with axial drain tap in reservoir body, the seam allowance lid is formed with drain tap, the axle envelope installed in the body shell to output shaft into
Row rotatory sealing, described body shell one end are equipped with the output shaft that extends out of outer end, in the reservoir body equipped with friction secondary, piston and
Spring, the spring are resisted against seam allowance and cover, it is characterised in that：The peace of fore bearing the installation diameter of axle and axle envelope shelves of the output shaft
It is identical to fill the diameter of axle.
2. a kind of hydraulic brake system according to claim 1, it is characterised in that：The fore bearing installation axle of the output shaft
Diameter is more than the diameter of axle that output shaft axis is stretched.
3. a kind of hydraulic brake system according to claim 2, it is characterised in that：The axis stretches disc and uses big rounding
Transition, and the installation diameter of axle of the axle envelope shelves of the output shaft uses small rounding transition with big rounding.
4. a kind of hydraulic brake system according to claim 1 or 3, it is characterised in that：The output shaft axis of the output shaft
It stretches for axis of cone connection type, rotation torque driving is carried out using the conical surface and flat key, the axis of cone big end disc uses big rounding
Transition, and the installation diameter of axle of the axle envelope shelves of the output shaft uses small rounding transition with big rounding.
5. a kind of hydraulic brake system according to claim 4, it is characterised in that：The output shaft of the axle envelope installs the diameter of axle
It is Φ 54 for Φ 41.35, body shell mounting hole.
6. a kind of hydraulic brake system according to claim 2 or 5, it is characterised in that：The axis of the output shaft stretches knot
Structure is the axis of cone, and the outside diameter of the axis of cone is Φ 38.1, taper 1：8.
7. a kind of hydraulic brake system according to claim 6, it is characterised in that：The output shaft front and back end is mounted with two
A bearing, described two bearings are all full dress roller bearing.
8. a kind of hydraulic brake system according to claim 7, it is characterised in that：It is described completely dress roller bearing by roller with
Two kinds of component assemblies of supporter form, and the supporter is the torus of indent, and the roller is mounted on the interior recess of supporter,
The supporter is whole made of grinding after being heat-treated.
9. a kind of hydraulic brake system according to claim 8, it is characterised in that：Former and later two described bearings are same rule
The full dress roller bearing of lattice.
10. a kind of hydraulic brake system according to any one of claims 7 to 9, it is characterised in that：The full dress roller
Bearing arrangement can bear radial load and axial force simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725257.9U CN207879927U (en) | 2017-12-12 | 2017-12-12 | A kind of hydraulic brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725257.9U CN207879927U (en) | 2017-12-12 | 2017-12-12 | A kind of hydraulic brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207879927U true CN207879927U (en) | 2018-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721725257.9U Active CN207879927U (en) | 2017-12-12 | 2017-12-12 | A kind of hydraulic brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207879927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-12 CN CN201721725257.9U patent/CN207879927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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