CN207034104U - The speed changer of hydraulic-driven wheel excavator - Google Patents
The speed changer of hydraulic-driven wheel excavator Download PDFInfo
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- CN207034104U CN207034104U CN201720912172.5U CN201720912172U CN207034104U CN 207034104 U CN207034104 U CN 207034104U CN 201720912172 U CN201720912172 U CN 201720912172U CN 207034104 U CN207034104 U CN 207034104U
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Abstract
The utility model discloses the speed changer of hydraulic-driven wheel excavator, including casing, the input shaft being rotatably arranged on casing and top gear driving gear thereon and low or first gear driving gear, the front-rear axle output shaft being rotatably arranged on casing and top gear driven gear and low or first gear driven gear thereon, in addition to normally closed rotating vane type hydraulic clutch mechanism, planetary gearsets and synchronizer assembly；The utility model is with hydraulic control driving shaft and input shaft clutch, the driving force that input shaft sends front-rear axle output shaft to can be cut off after separation, make speed changer can gear shift under steam, prevent shifting shock, effectively prevent the damage of gear, reduce cost, maintenance rate is reduced, planetary gearsets is added again, reduces the cooperation of multiple axles and gear, allow the more compact structure of product, small volume, occupy little space, and can realizes overgear output and the output of low speed big speed ratio, run at a low speed with to improve work and run at high speed with transition, there are a variety of transmissions to export ratios.
Description
Technical field
It the utility model is related to a kind of speed changer, and in particular to a kind of speed changer of hydraulic-driven wheel excavator.
Background technology
Wheel excavator has been widely used as multiduty engineering machinery.Wheel excavator, which also divides, Mechanical Driven
Wheel excavator and hydraulic-driven wheel excavator, and hydraulic-driven wheel excavator is due to when it has mobility strong and work
Impact small, it is not necessary to the features such as technical transport, increasingly welcome by user.But current hydraulic-driven wheeled excavating
The speed changer of machine has the following disadvantages：
1st, the structure of existing hydraulic-driven wheel excavator speed changer can not realize in-motion shifting, particularly in different works
Under the conditions of condition, it is necessary to during high low velocity gear shift；If not very gear shift in the process of moving will result in gear failure, deformation, lead
Excavator cisco unity malfunction is caused, reduces operating efficiency, and dismounts maintenance difficult, maintenance cost is high；
2nd, due to hydraulic-driven wheel excavator need at work it is at low speed, need to be to run at high speed, so during transition
Operating efficiency could be improved, the structure of the speed changer of existing hydraulic-driven wheel excavator mainly uses multishaft gear structure, this
Kind structure does not simply fail to meet simultaneously to run at high speed when speed operation traveling and the transition during work, and complicated, volume
Greatly, space-consuming is big.
Utility model content
In place of overcoming above shortcomings in the prior art, the purpose of this utility model is to provide a kind of hydraulic pressure
The speed changer of driving wheel-type excavator, the speed changer have compact-sized, small volume, and and can meets speed operation during work simultaneously
The demand run at high speed when traveling and transition.
The utility model is achieved through the following technical solutions：The speed changer of hydraulic-driven wheel excavator, including casing and
Input shaft, the front-rear axle output shaft being rotatably arranged on casing, input shaft are provided with the top gear that needle bearing coordinates installation
Driving gear and low or first gear driving gear, front-rear axle output shaft be provided with needle bearing coordinate installation top gear driven gear and
Low or first gear driven gear, in addition to normally closed rotating vane type hydraulic clutch mechanism for hydraulic control driving shaft and input shaft clutch,
For exporting the planetary gearsets of low-grade fast ratio and synchronizer assembly for height quick change shelves；
The normally closed rotating vane type hydraulic clutch mechanism includes clutch outer member, driving shaft, clutch driven plate, friction plate group
Component, friction plate platen, hydraulic cylinder, piston, return disc spring, disc spring sub-assembly, the clutch outer member is connected with casing, described
Driving shaft is arranged on input shaft by deep groove ball bearing and input axis connection, the clutch driven plate, the friction plate group
Component is arranged on driving shaft and is fixed by friction plate platen, and the friction plate platen is consolidated with piston by thrust bearing
It is scheduled on driving shaft, the hydraulic cylinder after piston airtight connection by flange and clutch outer member with being fixed, the piston and method
The disc spring sub-assembly being arranged on driving shaft is provided between orchid, the driving shaft input is connected with variable piston motor；
The planetary gearsets include sun gear, gear ring, planet carrier, multiple planetary gears, and the sun gear is fixed on input
On axle, sun gear is integrally formed with input shaft, and the gear ring is locked by bolt and clutch outer member, each planet
Engaged simultaneously in wheel installation planet carrier and with sun gear, gear ring, the planet carrier is sheathed on input shaft and around input shaft
Rotate, fixation is bolted between low or first gear driving gear and planet carrier；
The synchronizer assembly is arranged on front-rear axle output shaft, and passes through the piston axis connection of fork and hydraulic cylinder, institute
Gear shifting hydraulic cylinder is stated on casing.
Further, front-rear axle output shaft both ends described in the utility model are respectively equipped with coordinates the circular cone of installation to roll with casing
Sub- bearing I and flange, the bearing cap I and oil sealing for being used for sealing taper roll bearing I are provided between the flange and casing.
Further, input shaft one end described in the utility model is provided with the taper roll bearing II for coordinating installation with casing,
And the end taper roll bearing II is connected by bearing cap II with box sealing, the input shaft other end is provided with matches somebody with somebody with clutch outer member
Close the taper roll bearing III of installation.
Further, clutch outer member described in the utility model is provided with the fuel feed hole with being connected inside hydraulic cylinder.
Further, it is provided between top gear driving gear and low or first gear driving gear described in the utility model installed in defeated
Enter the spacer on axle.
The utility model compared with prior art, has advantages below and beneficial effect：
1st, the utility model increases normally closed rotating vane type hydraulic clutch mechanism and synchromesh unit assembly, with hydraulic control actively
Axle and input shaft clutch, can be cut off the driving force that input shaft sends front-rear axle output shaft to, speed changer is being travelled after separation
Middle gear shift, shifting shock is prevented, effectively prevent the damage of gear, reduce cost, reduce maintenance rate.
2nd, the utility model adds planetary gearsets, reduces the cooperation of multiple axles and gear, allow speed changer structure more
It is compact, small volume, occupy little space, and can realizes overgear output and the output of low speed big speed ratio, low during improving work
Run at high speed when fast operating mode traveling and transition, there can be a variety of transmissions to export ratio.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Sign, objects and advantages will become apparent：
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or two
More than individual.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can also be joined directly together or indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model.
With reference to as shown in figure 1, the speed changer of the hydraulic-driven wheel excavator of the present embodiment, including casing 1 and rotatable
Input shaft 2, front-rear axle output shaft 3 of the ground on casing 1, input shaft 2 are provided with the top gear that needle bearing 10 coordinates installation
Driving gear 11 and low or first gear driving gear 12, it is provided with and is arranged between top gear driving gear 11 and low or first gear driving gear 12
Spacer 4 on input shaft 2, front-rear axle output shaft 3 are provided with the top gear driven gear 31 and low that needle bearing 30 coordinates installation
Fast shelves driven gear 32, in addition to normally closed rotating vane type hydraulic clutch mechanism for hydraulic control driving shaft and input shaft clutch,
For exporting the planetary gearsets of low-grade fast ratio and the synchronizer assembly 5 installed in front-rear axle output shaft 3, the synchronizer assembly
5 are arranged on front-rear axle output shaft 3, and are connected by fork 6 with the piston shaft 70 of gear shifting hydraulic cylinder 7, the gear shifting hydraulic cylinder 7
On casing 1.
Wherein, the normally closed rotating vane type hydraulic clutch mechanism includes clutch outer member 80, driving shaft 81, clutch driven plate
82nd, friction plate combination part 83, friction plate platen 84, hydraulic cylinder 85, piston 86, return disc spring 87, disc spring sub-assembly 801, it is described
Clutch outer member 80 is connected with casing 1, and the driving shaft 81 is connected by deep groove ball bearing 87 with input shaft 2, the clutch
Clutch plate 82 is arranged on input shaft 2, and the friction plate combination part 83 is arranged on driving shaft 81 and passes through friction plate platen 84
It is fixed, the friction plate platen 84 is fixed on driving shaft 81 with piston 86 by thrust bearing 88, the hydraulic cylinder 85
With being fixed after the airtight connection of piston 86 by flange 89 and clutch outer member 80, installation is provided between the piston 86 and flange 89
Disc spring sub-assembly 801 on driving shaft 81, the input of driving shaft 81 are connected with variable piston motor 8.
The planetary gearsets include sun gear 20, gear ring 21, planet carrier 22, multiple planetary gears 23, the sun gear 20
It is fixed on input shaft 2, sun gear 20 is integrally formed with input shaft 2, and the gear ring 21 is locked by bolt and clutch outer member 80
Fasten, each planetary gear 23 is installed in planet carrier 22 and engaged simultaneously with sun gear 20, gear ring 21, the planet
Frame 22 is sheathed on input shaft 2 and rotated around input shaft, is bolted between low or first gear driving gear 12 and planet carrier 22
Fixed, bolt connection more easily can export different rotating speeds by changing the low or first gear driving gear 12 of not synchronized ratio
Than.
Preferentially, the both ends of front-rear axle output shaft 3 are respectively equipped with the taper roll bearing I 33 for coordinating installation with casing 1
With flange 34, the bearing cap I 35 and oil sealing 36 for being used for sealing taper roll bearing I 33 are provided between the flange 34 and casing 1.
Preferentially, described one end of input shaft 2 is provided with the taper roll bearing II 13 for coordinating installation with casing 1, and the end is justified
Taper roller bearing II 13 is tightly connected by bearing cap II 14 and casing 1, and the other end of input shaft 2 is provided with matches somebody with somebody with clutch outer member 80
The taper roll bearing III 15 of installation is closed, clutch outer member 80 is provided with the fuel feed hole with being connected inside gear shifting hydraulic cylinder 7
802。
Operation principle of the present utility model：In not logical hydraulic oil, disc spring sub-assembly 801 rubs the compression of rebounding of piston 86
Pad platen 84 makes the pressing friction chip assembly 83 of friction plate platen 84, and the driving force can that driving shaft 81 inputs passes through friction
Chip assembly 83 transmits torque to friction plate platen 84, and friction plate platen 84 is integrally fixed on input shaft 2, and input shaft 2 is just
There is driving force（I.e. input shaft 2 is combined with driving shaft 81）, when detachment is desired, lead to hydraulic pressure into hydraulic cylinder 85 from oil inlet 802
Oil, piston 86 outward movement disc spring sub-assembly 801 is pressed, at this moment return disc spring 87 by friction plate platen 84 with movable friction plate group
Component 83 flicks, and makes friction plate combination part 83 to friction plate platen 84 without transmission torque（I.e. driving shaft 81 divides with input shaft 2
From）, cut-off input shaft 2 is driven the driving force to front-rear axle output shaft 3 after separation, front-rear axle output shaft 3 is not being had driving force
Transmission under be easier to allow synchronizer assembly to prevent shifting shock to high low speed driven gear shift sleeve tooth, gear can be prevented
Damage, reduce cost, reduce maintenance rate, extend the service life of speed changer.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
In the case where not departing from principle and objective of the present utility model a variety of change, modification, replacement and modification can be carried out to these embodiments,
The scope of the utility model is limited by claim and its equivalent.
Claims (5)
1. the speed changer of hydraulic-driven wheel excavator, including casing and the input shaft, the front-rear axle that are rotatably arranged on casing
Output shaft, input shaft are provided with needle bearing and coordinate the top gear driving gear of installation and low or first gear driving gear, front-rear axle defeated
Shaft is provided with the top gear driven gear and low or first gear driven gear that needle bearing coordinates installation, it is characterised in that：Also include
For hydraulic control driving shaft and the normally closed rotating vane type hydraulic clutch mechanism of input shaft clutch, the planet for exporting low-grade fast ratio
Gear train and the synchronizer assembly for height quick change shelves；
The normally closed rotating vane type hydraulic clutch mechanism includes clutch outer member, driving shaft, clutch driven plate, friction plate combination
Part, friction plate platen, hydraulic cylinder, piston, return disc spring, disc spring sub-assembly, the clutch outer member are connected with casing, the master
Moving axis is arranged on input shaft by deep groove ball bearing and input axis connection, the clutch driven plate, the friction plate combination
Part is arranged on driving shaft and is fixed by friction plate platen, and the friction plate platen is fixed with piston by thrust bearing
On driving shaft, the hydraulic cylinder after piston airtight connection by flange and clutch outer member with being fixed, the piston and flange
Between be provided with the disc spring sub-assembly being arranged on driving shaft, the driving shaft input is connected with variable piston motor；
The planetary gearsets include sun gear, gear ring, planet carrier, multiple planetary gears, and the sun gear is fixed on input shaft,
Sun gear is integrally formed with input shaft, and the gear ring is locked by bolt and clutch outer member, each planetary gear peace
Being engaged simultaneously on planet carrier and with sun gear, gear ring, the planet carrier is sheathed on input shaft and rotated around input shaft,
Fixation is bolted between low or first gear driving gear and planet carrier；
The synchronizer assembly is arranged on front-rear axle output shaft, and passes through the piston axis connection of fork and gear shifting hydraulic cylinder, institute
Gear shifting hydraulic cylinder is stated on casing.
2. the speed changer of hydraulic-driven wheel excavator according to claim 1, it is characterised in that：The front-rear axle output
Axle both ends are respectively equipped with the taper roll bearing I and flange for coordinating installation with casing, are provided with and are used between the flange and casing
Seal the bearing cap I and oil sealing of taper roll bearing.
3. the speed changer of hydraulic-driven wheel excavator according to claim 1, it is characterised in that：Described input shaft one end
Provided with the taper roll bearing II for coordinating installation with casing, and the end taper roll bearing II passes through bearing cap II and box sealing
Connection, the input shaft other end are provided with the taper roll bearing III for coordinating installation with clutch outer member.
4. the speed changer of the hydraulic-driven wheel excavator according to claim 1 or 3, it is characterised in that：The clutch
Shell is provided with the fuel feed hole with being connected inside hydraulic cylinder.
5. the speed changer of hydraulic-driven wheel excavator according to claim 1, it is characterised in that：The top gear is actively
The spacer being arranged on input shaft is provided between gear and low or first gear driving gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720912172.5U CN207034104U (en) | 2017-07-26 | 2017-07-26 | The speed changer of hydraulic-driven wheel excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720912172.5U CN207034104U (en) | 2017-07-26 | 2017-07-26 | The speed changer of hydraulic-driven wheel excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034104U true CN207034104U (en) | 2018-02-23 |
Family
ID=61462308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720912172.5U Active CN207034104U (en) | 2017-07-26 | 2017-07-26 | The speed changer of hydraulic-driven wheel excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355518A (en) * | 2017-07-26 | 2017-11-17 | 福建省晋江市科华汽配有限公司 | The speed changer of hydraulic-driven wheel excavator |
| CN110725867A (en) * | 2019-10-15 | 2020-01-24 | 宁波上中下自动变速器有限公司 | Synchronizer, synchronizer speed regulation system and vehicle |
-
2017
- 2017-07-26 CN CN201720912172.5U patent/CN207034104U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355518A (en) * | 2017-07-26 | 2017-11-17 | 福建省晋江市科华汽配有限公司 | The speed changer of hydraulic-driven wheel excavator |
| CN110725867A (en) * | 2019-10-15 | 2020-01-24 | 宁波上中下自动变速器有限公司 | Synchronizer, synchronizer speed regulation system and vehicle |
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