CN107511694A - Beam rear axle axle housing inner chamber supporting mechanism - Google Patents
Beam rear axle axle housing inner chamber supporting mechanism Download PDFInfo
- Publication number
- CN107511694A CN107511694A CN201710771537.1A CN201710771537A CN107511694A CN 107511694 A CN107511694 A CN 107511694A CN 201710771537 A CN201710771537 A CN 201710771537A CN 107511694 A CN107511694 A CN 107511694A
- Authority
- CN
- China
- Prior art keywords
- cam
- support frame
- push rod
- axle housing
- ratchet
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
Abstract
The invention discloses a kind of beam rear axle axle housing inner chamber supporting mechanism, including pedestal, double cam mechanism and left support frame and right support frame, double cam mechanism includes the front cam being coaxially disposed and rear cam, front cam and rear cam are mounted on pedestal and rotatable relative to its, offer two chutes in front cam and rear cam, front cam roller and rear cam bawl are separately installed with the chute of front cam and rear cam；Left support frame and right support frame include preceding push rod, rear push rod and parallel-crank mechanism, the both ends of preceding push rod are connected with the pin joint of parallel-crank mechanism first and front cam roller respectively, the both ends of push rod are connected with the pin joint of parallel-crank mechanism second and rear cam bawl respectively afterwards, and the pin joint of parallel-crank mechanism the 3rd and the 4th pin joint are separately installed with upper support seat and lower support base.This beam rear axle axle housing inner chamber supporting mechanism, is supported to rear axle case, improves rigidity of the Chinese lute hole along axle housing axial direction.
Description
Technical field
The present invention relates to rear axle case auxiliary support mechanism technical field, more particularly to a kind of beam rear axle axle housing inner chamber
Supporting mechanism.
Background technology
Banjo axle is driven the assembling matrix of main reducing gear of drive axle, semiaxis, brake as after, axle housing center it is high and
Chinese lute hole end surface flatness dimensioned precision can influence the assembling quality of rear axle assy.Wherein：The high size in axle housing center can shadow
The correct assembling of left and right semiaxis and axle shaft gear is rung, bridge casing lute holes end face plane degree can influence axle housing and the main dress for subtracting assembly
Match somebody with somebody.Thus, axle housing center is high and Chinese lute hole end surface flatness is the mach crucial control size of axle housing.
Due to being thin-walled hollow structure at bridge casing lute holes, and Chinese lute hole circumference diverse location stiffness difference is big, especially exists
On axle housing axial direction, the rigidity in Chinese lute hole is relatively small.During Chinese lute hole end surface end mill processing, under the effect of axle housing cutting force,
The deformation of Chinese lute hole circumference diverse location is inconsistent, and deformation after process finishing bounce-back is also inconsistent so that axle housing center it is high and
The qualified difficulty of Chinese lute hole end surface flatness dimensioned is big.
The content of the invention
It is a primary object of the present invention to provide a kind of beam rear axle axle housing inner chamber supporting mechanism, it is intended to rear axle case
It is supported.
To achieve the above object, the present invention provides a kind of beam rear axle axle housing inner chamber supporting mechanism, including pedestal, biconvex
Take turns mechanism and be located at the left support frame and right support frame of double cam mechanism both sides respectively, wherein,
The double cam mechanism includes the front cam that is coaxially disposed and rear cam, front cam and rear cam be mounted on pedestal and
It is rotatable relative to it, two chutes are offered in the front cam and rear cam, in the chute of the front cam and rear cam
It is separately installed with front cam roller slidable against and rear cam bawl；
The left support frame and right support frame include the be hinged parallelogram machine formed of preceding push rod, rear push rod and double leval jib
Structure, the both ends of preceding push rod are connected with the pin joint of parallel-crank mechanism first and front cam roller respectively, the both ends point of rear push rod
It is not connected with the pin joint of parallel-crank mechanism second and rear cam bawl, the pin joint of the parallel-crank mechanism the 3rd and
Four pin joints are separately installed with upper support seat and lower support base, and the upper support seat of left support frame and right support frame is with supporting axle housing
Abut to support.
Preferably, the preceding push rod of the left support frame and right support frame is fixedly connected with two front cam rollers respectively, left branch
Support and the rear push rod of right support frame are fixedly connected with cam bawl after two respectively.
Preferably, minute surface is symmetrical arranged and the cunning of front cam two chutes of two chutes of the front cam and rear cam respectively
Groove is identical with the track of the chute of rear cam.
Preferably, the radius of gyration at the chute center gradually increases from cam body ellipse semi-minor axis to major semiaxis.
Preferably, the ratchet mechanism for locking front cam and rear cam is also equipped with the pedestal.
Preferably, mandrel is installed, front cam and rear cam are both secured on mandrel, described on the pedestal
Ratchet mechanism is including the rocking bar being fixedly connected with mandrel, the outer ratchet being fixed on the pedestal and is installed on rocking bar
And the ratchet being adapted to outer ratchet.
Preferably, the ratchet mechanism also includes spring, and stud is provided with rocking bar, and spring is enclosed on studs with ratchet
Above and by nut fix, spring band moment of torsion and precommpression, the moment of torsion of spring make ratchet be close to the outer ratchet flank of tooth, the precompressed of spring
Contracting power makes ratchet be close to nut end face.
Preferably, the left support frame and right support frame also include being installed on the pin joint of parallel-crank mechanism second
Slide is oriented to, provided with the guide chute for being used to slide for being oriented to slide, preceding push rod, which passes through, is oriented to slide and phase at the middle part of preceding push rod
For it slidably.
Beam rear axle axle housing inner chamber supporting mechanism proposed by the present invention, to move before and after push rod using double cam mechanism
It is dynamic, to adjust the height of upper support seat, so as to support axle housing in inner chamber, rigidity of the Chinese lute hole along axle housing axial direction is improved, and then
The stiffness difference of hole circumference diverse location is reduced, the deflection and rebound amount difference that cutting force is brought when reducing milling, improves bridge
The high machining accuracy with Chinese lute pore cross section flatness in shell center.Rotating rocker, band pawl are slided on ratchet, when release rocking bar
When, notch wheel regulating mechanism can realize the self-locking of device.When machining withdrawing device, compression spring causes ratchet to leave ratchet
Teeth groove, rocking bar is rotated clockwise to original position.The present invention is simple in construction, easy to operate, solves back axle Chinese lute hole well
Center high the problem of being difficult to control with flatness precision when end face processes.
Brief description of the drawings
Fig. 1 is the structural representation of beam rear axle axle housing inner chamber supporting mechanism preferred embodiment of the present invention；
Fig. 2 is the backsight structural representation of beam rear axle axle housing inner chamber supporting mechanism of the present invention；
Fig. 3 is the linkage schematic diagram of double cam mechanism and right support frame in beam rear axle axle housing inner chamber supporting mechanism of the present invention；
Fig. 4 is the structural representation of right support frame in beam rear axle axle housing inner chamber supporting mechanism of the present invention；
Fig. 5 is the structural representation of double cam mechanism in beam rear axle axle housing inner chamber supporting mechanism of the present invention；
Fig. 6 is the schematic perspective view of beam rear axle axle housing inner chamber supporting mechanism of the present invention；
Fig. 7 is the structural representation of ratchet mechanism in beam rear axle axle housing inner chamber supporting mechanism of the present invention.
In figure, 1. left support frames, 2. right support frames, 2-1. upper support seats, 2-2. connecting rods, push rod before 2-3., prop up under 2-4.
Seat is supportted, 2-5. is oriented to slide, push rod after 2-6., 3. double cam mechanisms, cam after 3-1., 3-2. front cams, 3-3. cam sleeves,
3-4. cam bawls, 4. ratchet mechanisms, 4-1. rocking bars, 4-2. springs, 4-3. ratchets, the outer ratchets of 4-4., 4-5. mandrels, 5.
Pedestal.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
It should be noted that in the description of the invention, term " transverse direction ", " longitudinal direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, is not instruction or implies signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint relative importance.
Referring to figs. 1 to Fig. 7, in this preferred embodiment, a kind of beam rear axle axle housing inner chamber supporting mechanism, including pedestal 5,
Double cam mechanism 3 and the left support frame 1 and right support frame 2 for being located at the both sides of double cam mechanism 3 respectively, wherein,
Double cam mechanism 3 includes the front cam 3-2 being coaxially disposed and rear cam 3-1, front cam 3-2 and rear cam 3-1 is respectively mounted
In on pedestal 5 and rotatable relative to it, offer two chutes on front cam 3-2 and rear cam 3-1, front cam 3-2 and after
Front cam roller slidable against and rear cam bawl are separately installed with cam 3-1 chute；
Left support frame 1 and right support frame 2 include preceding push rod 2-3, rear push rod 2-6 and double leval jib 2-2 it is be hinged form it is parallel
Quadrangular mechanism, preceding push rod 2-3 both ends are connected with the pin joint of parallel-crank mechanism first and front cam roller respectively, rear top
Bar 2-6 both ends are connected with the pin joint of parallel-crank mechanism second and rear cam bawl respectively, parallel-crank mechanism the 3rd
Pin joint and the 4th pin joint are separately installed with upper support seat 2-1 and lower support base 2-4, left support frame 1 and right support frame 2 it is upper
Support base 2-1 is abutted to support with support axle housing.
In initial time and axle housing lower contacts, the work of double cam mechanism 3, following support base 2-4 is lower support base 2-4
Fulcrum, pedestal 5 and the entirety of double cam mechanism 3 move up, meanwhile, upper support seat 2-1 height, which also increases, is raised to peak
When abutted with axle housing top to support.
Specifically, the preceding push rod 2-3 of left support frame 1 and right support frame 2 is fixedly connected with two front cam rollers respectively, left branch
Support 1 and the rear push rod 2-6 of right support frame 2 are fixedly connected with cam bawl after two respectively.
Minute surface is symmetrical arranged and front cam 3-2 chute front cam 3-2 two chutes and rear cam 3-1 two chutes respectively
It is identical with the track of rear cam 3-1 chute.Rotation front cam 3-2 and rear cam 3-1 can realize forward and backward push rod 2-6 in water
Square to push-and-pull move, and while preceding push rod 2-3 is promoted, rear push rod 2-6 is pulled, both directions of motion on the contrary, so as to
Realize moving up and down for upper support seat 2-1.
Front cam 3-2 and rear cam 3-1 intermediate spaces have four tack welds, and 90 ° of relative position can be kept after welding
Put constant.Upper support seat 2-1 and lower support base 2-4 are hinged by bolt and two connecting rod 2-2, preceding push rod 2-3 one end and company
Bar 2-2 is bolted, and rear push rod 2-6 one end is bolted with connecting rod 2-2.Front cam roller and rear cam bawl are equal
In embedded chute.
Front cam 3-2 two chutes are axial symmetry relative to front cam 3-2 axle center, equally, front cam 3-2 two chutes
Axle center relative to front cam 3-2 is axial symmetry.The radius of gyration at chute center from cam body ellipse semi-minor axis to major semiaxis by
It is cumulative big.
Further, reference picture 1 and Fig. 7, the spine for locking front cam 3-2 and rear cam 3-1 is also equipped with pedestal 5
Take turns mechanism 4.Mandrel 4-5, front cam 3-2 and rear cam 3-1 are installed on pedestal 5 to be both secured on mandrel 4-5, spine
Wheel mechanism 4 is including the rocking bar 4-1 being fixedly connected with mandrel 4-5, the outer ratchet 4-4 being fixed on pedestal 5 and is installed on
The ratchet 4-3 being adapted on rocking bar 4-1 and with outer ratchet 4-4.
Front cam 3-2 and rear cam 3-1 are provided with cam sleeve 3-3, and cam sleeve 3-3 is placed on mandrel 4-5,
Front cam 3-2 and rear cam 3-1 are connected with mandrel 4-5 flat keys.
Further, ratchet mechanism 4 also includes spring 4-2, and stud, spring 4-2 and ratchet 4-3 are provided with rocking bar 4-1
It is enclosed on studs and is fixed by nut, spring 4-2 band moment of torsion and precommpression, spring 4-2 moment of torsion is close to ratchet 4-3
The outer ratchet 4-4 flank of tooth, spring 4-2 pre-compression force make ratchet 4-3 be close to nut end face.Turn rocking bar 4-1 counterclockwise, drives spine
Pawl 4-3 is slipped on ratchet.Upper support seat 2-1 reaches specified altitude assignment and unclamps rocking bar 4-1, ratchet 4- after propping up Chinese lute hole inwall
3 are stuck in outer ratchet 4-4 teeth groove so that mandrel 4-5 can not be rotated backward, and realize the self-locking of mechanism.Work as process
After end, compression spring 4-2 so that ratchet 4-3 departs from outer ratchet 4-4, while rocking bar 4-1 is clockwise into initial position
Trip spring 4-2 afterwards, that is, complete unblock and recover to original state.In the present embodiment, by setting ratchet mechanism 4, so as to realize
Device self-locking.
Further, also include being installed on parallel-crank mechanism with reference to Fig. 1 and Fig. 4, left support frame 1 and right support frame 2
The middle part of guiding slide 2-5, preceding push rod 2-3 on second pin joint are provided with the guide chute for being used for sliding for being oriented to slide 2-5,
Preceding push rod 2-3 is through being oriented to slide 2-5 and slidable against.Slide 2-5 is oriented to play a part of stable and be oriented to.
The operation principle of this beam rear axle axle housing inner chamber supporting mechanism is as follows.Rotate counterclockwise rocking bar 4-1, band pawl
4-3 is slipped on ratchet, mandrel 4-5 and front cam 3-2 and rear cam 3-1 all concomitant rotations, and front cam roller is along chute
During by rolling apart from axle center remote position to the position nearer apart from axle center, drive the preceding push rod 2-3 of right support frame 2 is past to move to left
It is dynamic（Now, the preceding push rod 2-3 of left support frame 1 is past moves right）；Cam bawl is rolled by the position nearer apart from axle center after simultaneously
To position farther out, drive the rear push rod 2-6 of right support frame 2 is past to move right（The preceding push rod 2-3 of left support frame 1 is past to be moved left）, it is right
The guiding slide 2-5 of support frame 2 is slided to the right, connecting rod 2-2 horizontal direction angle increase so that upper support seat 2-1 is transported upwards
It is dynamic.After upper support seat 2-1 reaches specified altitude assignment and props up Chinese lute hole inwall, rocking bar 4-1 is unclamped, ratchet 4-3 is stuck in outer ratchet
In 4-4 teeth groove so that mandrel 4-5 can not be rotated backward, and realize the self-locking of mechanism.After process terminates, compression
Spring 4-2 so that ratchet 4-3 departs from ratchet, while rocking bar 4-1 is clockwise into trip spring 4-2 after initial position, i.e.,
Unblock is completed to recover to original state.
The beam rear axle axle housing inner chamber supporting mechanism that the present embodiment proposes, using double cam mechanism 3 so that before and after push rod
It is mobile, to adjust upper support seat 2-1 height, so as to support axle housing in inner chamber, rigidity of the Chinese lute hole along axle housing axial direction is improved,
And then the stiffness difference of hole circumference diverse location is reduced, the deflection and rebound amount difference that cutting force is brought when reducing milling, carry
The high machining accuracy with Chinese lute pore cross section flatness in high axle housing center.Rotating rocker 4-1, band pawl 4-3 are slided on ratchet,
When unclamping rocking bar 4-1, notch wheel regulating mechanism can realize the self-locking of device.When machining withdrawing device, compression spring 4-2
So that ratchet 4-3 leaves ratchet teeth groove, rocking bar 4-1 is rotated clockwise to original position.The present invention is simple in construction, operation letter
Just, solve the problems, such as that center is high during the processing of back axle Chinese lute hole end surface and flatness precision is unmanageable well.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure transformation that bright specification and accompanying drawing content are made, or other related technical areas are directly or indirectly used in,
Similarly it is included within the scope of the present invention.
Claims (8)
1. a kind of beam rear axle axle housing inner chamber supporting mechanism, it is characterised in that including pedestal, double cam mechanism and difference position
Left support frame and right support frame in double cam mechanism both sides, wherein,
The double cam mechanism includes the front cam that is coaxially disposed and rear cam, front cam and rear cam be mounted on pedestal and
It is rotatable relative to it, two chutes are offered in the front cam and rear cam, in the chute of the front cam and rear cam
It is separately installed with front cam roller slidable against and rear cam bawl；
The left support frame and right support frame include the be hinged parallelogram machine formed of preceding push rod, rear push rod and double leval jib
Structure, the both ends of preceding push rod are connected with the pin joint of parallel-crank mechanism first and front cam roller respectively, the both ends point of rear push rod
It is not connected with the pin joint of parallel-crank mechanism second and rear cam bawl, the pin joint of the parallel-crank mechanism the 3rd and
Four pin joints are separately installed with upper support seat and lower support base, and the upper support seat of left support frame and right support frame is with supporting axle housing
Abut to support.
2. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 1, it is characterised in that the left support frame and the right side
The preceding push rod of support frame is fixedly connected with two front cam rollers respectively, the rear push rod of left support frame and right support frame respectively with two after
Cam bawl is fixedly connected.
3. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 1, it is characterised in that two cunnings of the front cam
Minute surface is symmetrical arranged two chutes of groove and rear cam respectively and the chute of front cam is identical with the track of the chute of rear cam.
4. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 3, it is characterised in that the chute center is returned
Turn radius from cam body ellipse semi-minor axis to major semiaxis gradually to increase.
5. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 1, it is characterised in that also installed on the pedestal
There is the ratchet mechanism for locking front cam and rear cam.
6. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 5, it is characterised in that be provided with the pedestal
Mandrel, front cam and rear cam are both secured on mandrel, and the ratchet mechanism includes being fixedly connected with mandrel
Rocking bar, the outer ratchet being fixed on the pedestal and the ratchet for being installed on rocking bar and being adapted to outer ratchet.
7. beam rear axle axle housing inner chamber supporting mechanism as claimed in claim 6, it is characterised in that the ratchet mechanism also wraps
Spring is included, stud is installed on rocking bar, spring is enclosed on studs with ratchet and fixed by nut, spring band moment of torsion and pre-
Compression, the moment of torsion of spring make ratchet be close to the outer ratchet flank of tooth, and the pre-compression force of spring makes ratchet be close to nut end face.
8. beam rear axle axle housing inner chamber supporting mechanism as claimed in any of claims 1 to 7 in one of claims, it is characterised in that institute
The guiding slide that left support frame and right support frame also include being installed on the pin joint of parallel-crank mechanism second is stated, preceding push rod
Middle part is provided with the guide chute for being used for sliding for being oriented to slide, and preceding push rod is through being oriented to slide and slidable against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771537.1A CN107511694B (en) | 2017-08-31 | 2017-08-31 | Beam rear axle axle housing inner cavity supporting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771537.1A CN107511694B (en) | 2017-08-31 | 2017-08-31 | Beam rear axle axle housing inner cavity supporting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107511694A true CN107511694A (en) | 2017-12-26 |
| CN107511694B CN107511694B (en) | 2019-05-24 |
Family
ID=60723618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771537.1A Active CN107511694B (en) | 2017-08-31 | 2017-08-31 | Beam rear axle axle housing inner cavity supporting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN107511694B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109572789A (en) * | 2019-01-11 | 2019-04-05 | 李衍霖 | A kind of automation control trolley base |
| CN110509087A (en) * | 2019-08-15 | 2019-11-29 | 襄阳新东特锻造有限公司 | A kind of collet fixture |
| CN111152133A (en) * | 2020-01-13 | 2020-05-15 | 宁梅 | Automatic feeding device for polishing of outer ring of pipe |
| CN113183030A (en) * | 2021-05-10 | 2021-07-30 | 成都先进金属材料产业技术研究院股份有限公司 | Metallographic specimen grinds anchor clamps |
| CN113199054A (en) * | 2021-05-30 | 2021-08-03 | 义乌市今朝创意设计有限公司 | Drilling device for machining steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109572789A (en) * | 2019-01-11 | 2019-04-05 | 李衍霖 | A kind of automation control trolley base |
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| CN111152133A (en) * | 2020-01-13 | 2020-05-15 | 宁梅 | Automatic feeding device for polishing of outer ring of pipe |
| CN111152133B (en) * | 2020-01-13 | 2021-09-24 | 冯媛媛 | Automatic feeding device for polishing of outer ring of pipe |
| CN113183030A (en) * | 2021-05-10 | 2021-07-30 | 成都先进金属材料产业技术研究院股份有限公司 | Metallographic specimen grinds anchor clamps |
| CN113199054A (en) * | 2021-05-30 | 2021-08-03 | 义乌市今朝创意设计有限公司 | Drilling device for machining steel pipe |
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| Publication number | Publication date |
|---|---|
| CN107511694B (en) | 2019-05-24 |
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