CN207223426U - A kind of centring means - Google Patents
A kind of centring means Download PDFInfo
- Publication number
- CN207223426U CN207223426U CN201721275365.0U CN201721275365U CN207223426U CN 207223426 U CN207223426 U CN 207223426U CN 201721275365 U CN201721275365 U CN 201721275365U CN 207223426 U CN207223426 U CN 207223426U
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- China
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- elastomer block
- lead
- sliding shoe
- centring means
- upper cover
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Abstract
The utility model discloses a kind of centring means, including lead, upper elastomer block, lower elastomer block and sliding shoe, upper elastomer block, lower elastomer block are set with the upper and lower ends in lead and can be slided up and down along lead, sliding shoe is slidably connected with lead, sliding shoe top is additionally provided with rubber slab, the top of rubber slab is additionally provided with upper cover, and upper cover is connected with bottom plate by support column, has sealing tapped through hole on upper lid.During use, the planet carrier assembled and wheel side transmission case assembly are placed on centring means by operator, gas is passed through to rubber slab by the thread seal through hole on upper lid, rubber slab is expanded because of gas pressure, sliding shoe is promoted to move down, upper and lower elastomer block under the impetus of sliding shoe open and tightly support on the inner wall of the housing assembly assembled around by direction, so the axis of housing assembly is just overlapped with the axis of lead, and upper and lower elastomer block props up housing assembly, realize and clamp while the centre of location.
Description
Technical field
Field of machining is the utility model is related to, more particularly to a kind of centring means.
Background technology
In car transmissions, wheel side speed changer is afterbody deceleration torsion increasing device, can be expired using wheel side speed changer
Foot under the same conditions, subtracts the load of the components such as speed changer, transmission shaft, main reducing gear, differential mechanism, semiaxis in resultant gear ratio
Less, the advantages that size diminishes and makes drive axle obtain the larger road clearance, it is widely used in load truck, large-scale visitor
Car, offroad vehicle and some other large-scale work mine car.Side speed changer is taken turns mainly by sun gear, planetary gear, gear ring and planet
Wheel carrier forms, its general driving link sun gear is connected with semiaxis, and Passive part planetary wheel carrier is connected with wheel, gear ring and axle housing phase
Connect, be in order to improve the driving force of automobile, to meet or correct the matching of whole transmission system power using wheel side speed changer.At present
The wheel side speed changer of use, exactly to meet the matched needs of whole transmission system, and the gear of increased a set of reduction of speed torque
Transmission device.Power is delivered to through clutch, speed changer and transfer gear from engine the main reducing gear of forward and backward bridge, then from master
The output terminal of retarder is delivered to hub reduction gear and wheel, to drive running car.In this course, side speed changer is taken turns
Operation principle be exactly rotating speed and moment of torsion main reducing gear transmission after its reduction of speed torque, then wheel is delivered to, to make car
Wheel is produced compared with large driving force, so as to reduce the stress of each part before hub reduction gear under the reaction of traction.
In actual production, planet carrier after wheel side transmission case general assembly with needing to drill, existing conventional drilling tool
It is that hand positioning clamps, dimensional accuracy, positional precision difference when being drilled with this frock after Product processing are difficult to ensure that, raw
Waste product is easily produced during production, while complicated, low production efficiency, add the production cost of enterprise.
Therefore, how to change in the prior art, positioning accuracy when planet carrier after wheel side transmission case general assembly with drilling
The low present situation of difference, location efficiency, is those skilled in the art's urgent problem to be solved.
The content of the invention
The purpose of this utility model is to provide a kind of centring means, to solve the above-mentioned problems of the prior art, improves
Positioning accuracy when planet carrier after wheel side transmission case general assembly with drilling, reduces the rejection rate in production process.
To achieve the above object, the utility model provides following scheme：The utility model provides a kind of centring means, bag
Bottom plate, lead, upper elastomer block, lower elastomer block and sliding shoe are included, the lead is arranged on the bottom plate, the upper elasticity
Block, the lower elastomer block are set with the upper and lower ends in the lead and can be slided up and down along the lead, institute
State elastomer block, the lower elastomer block is made by elastic material, the upper elastomer block is connected with the lower elastomer block, described
Sliding shoe is slidably connected with the lead, and the upper elastomer block, the lower elastomer block are respectively positioned on the bottom plate and the slip
Between block, the sliding shoe top is additionally provided with rubber slab, and the top of the rubber slab is additionally provided with upper cover, the upper cover and institute
State bottom plate to connect by support column, the upper cover has sealing tapped through hole.
Preferably, the lead is cylindrical-shaped structure, and the sliding shoe has columned sliding slot, and the lead is set
It is placed in the sliding slot, the support column connects the upper cover and the bottom plate.
Preferably, centring means further includes support plate, and the support plate is set in the outside of the sliding shoe, the support
Plate is slidably connected with the sliding shoe, and the support plate is utilized with the upper cover and is bolted.
Preferably, the upper elastomer block includes sliding part and location division, and the sliding part is slidably connected with the lead,
The location division is connected with the sliding part and extends along radial direction to the direction away from axis, and the quantity of the location division is
8, circumferentially shape is evenly distributed with for 8 location divisions.
Preferably, pin hole is set on the location division, and the location division is connected by straight pin with the lower elastomer block.
Preferably, centring means further includes auxiliary positioning block, and the auxiliary positioning block is connected with the bottom plate by screw.
Preferably, the axis of the sealing tapped through hole is overlapped with the axis of the lead.
Preferably, the support column is fixed through the upper cover and with nut.
The utility model achieves following beneficial effect relative to the prior art：The centring means of the utility model, including
Bottom plate, lead, upper elastomer block, lower elastomer block and sliding shoe, lead are arranged on bottom plate, upper elastomer block, lower elastomer block point
The upper and lower ends of lead are not set in and can be slided up and down along lead, and upper elastomer block, lower elastomer block are by elastic material
Material is made, and upper elastomer block is connected with lower elastomer block, and sliding shoe is slidably connected with lead, upper elastomer block, the equal position of lower elastomer block
Between bottom plate and sliding shoe, sliding shoe top is additionally provided with rubber slab, and the top of rubber slab is additionally provided with upper cover, upper cover and bottom
Plate is connected by support column, has sealing tapped through hole on upper lid.In use, operator becomes the planet carrier assembled and wheel side
Fast device housing assy is placed on centring means, and compressed air, rubber are passed through to rubber slab by the thread seal through hole on upper lid
Plate promotes sliding shoe to move down, during sliding shoe moves down, upper and lower elastomer block is in cunning because gas pressure expands
Direction is opened around under the impetus of motion block, and upper and lower elastomer block is tightly supportted in the housing assembly assembled after opening
On wall, the axis of such housing assembly is just overlapped with the axis of lead, and upper and lower elastomer block props up housing assembly, fixed
It is centrical while realize clamping, clamped without manualling locate, improve the precision of the centre of location, improve production efficiency.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall structure cut-away illustration of the centring means of the utility model；
Fig. 2 is the overlooking the structure diagram of the centring means of the utility model；
Fig. 3 is the structure diagram of the upper elastomer block of the centring means of the utility model；
Fig. 4 is the side structure schematic view of the upper elastomer block of the centring means of the utility model；
Fig. 5 is the structure diagram of the sliding shoe of the centring means of the utility model；
Fig. 6 is the structure diagram of the support plate of the centring means of the utility model；
Fig. 7 is the structure diagram of the upper cover of the centring means of the utility model；
Wherein, 1 is bottom plate, and 2 be lead, and 3 be upper elastomer block, and 301 be sliding part, and 302 be location division, and 303 be pin
Hole, 304 be straight pin, and 4 be lower elastomer block, and 5 be sliding shoe, and 501 be sliding slot, and 6 be rubber slab, and 7 be upper cover, and 701 be sealing spiral shell
Line through hole, 8 be support column, and 9 be planet carrier and wheel side transmission case assembly, and 10 be support plate, and 11 be auxiliary locating piece.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of centring means, to solve the above-mentioned problems of the prior art, improves
Positioning accuracy when planet carrier after wheel side transmission case general assembly with drilling, reduces the rejection rate in production process.
To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Please refer to Fig.1 to Fig. 7, Fig. 1 is the overall structure cut-away illustration of the centring means of the utility model, and Fig. 2 is this
The overlooking the structure diagram of the centring means of utility model, Fig. 3 are the structure of the upper elastomer block of the centring means of the utility model
Schematic diagram, Fig. 4 are the side structure schematic view of the upper elastomer block of the centring means of the utility model, and Fig. 5 is the utility model
The structure diagram of the sliding shoe of centring means, Fig. 6 are the structure diagram of the support plate of the centring means of the utility model, are schemed
7 be the structure diagram of the upper cover of the centring means of the utility model.
The utility model provides a kind of centring means, including bottom plate 1, lead 2, upper elastomer block 3, lower elastomer block 4 and cunning
Motion block 5, lead 2 are arranged on bottom plate 1, and the upper and lower ends that upper elastomer block 3, lower elastomer block 4 are set with lead 2 simultaneously can
Enough to be slided up and down along lead 2, upper elastomer block 3, lower elastomer block 4 are made by elastic material, upper elastomer block 3 and lower elastomer block
4 are connected, and sliding shoe 5 is slidably connected with lead 2, and upper elastomer block 3, lower elastomer block 4 are respectively positioned between bottom plate 1 and sliding shoe 5,
5 top of sliding shoe is additionally provided with rubber slab 6, and the top of rubber slab 6 is additionally provided with upper cover 7, and upper cover 7 passes through support column 8 with bottom plate 1
Connection, upper cover 7 have sealing tapped through hole 701.
In use, the planet carrier assembled and wheel side transmission case assembly 9 are placed on centring means by operator, pass through
Thread seal through hole 701 in upper cover 7 is passed through compressed air to rubber slab 6, and rubber slab 6 is promoted and slided because gas pressure expands
Block 5 moves down, and during sliding shoe 5 moves down, upper elastomer block 3 moves downward, and the upper elastomer block 3 of umbrella is continuous
Strut, the structure of lower elastomer block 4 and upper elastomer block 3 mirror image each other, lower elastomer block 4 be inverted umbrella-shaped structure, upper elastomer block 3 and
Lower elastomer block 4 is connected, and constantly direction is opened around under the impetus of sliding shoe 5 for upper elastomer block 3 and lower elastomer block 4, on
Elastomer block 3, lower elastomer block 4 open after tightly support planet carrier with take turns side transmission case assembly 9 inner wall on, such planet carrier with
Take turns axis of the axis of side transmission case assembly 9 just with lead 2 to overlap, and upper elastomer block 3, lower elastomer block 4 prop up planet
Frame is realized while the centre of location and clamped with taking turns side transmission case assembly 9, changes showing for manual positioning clamping in the prior art
Shape, improves the precision of the centre of location, improves production efficiency.
Specifically, lead 2 is cylindrical-shaped structure, and sliding shoe 5 has columned sliding slot 501, and lead 2 is arranged at cunning
In groove 501, support column 8 connects upper cover 7 and bottom plate 1.During practical operation, upper elastomer block 3 and lower elastomer block 4 are in free state
When, maximum outside diameter is small compared with the internal diameter of planet carrier and wheel side transmission case assembly 9, by planet carrier and wheel side speed changer when being easy to use
Housing assy 9 is sleeved on centring means, and when sliding shoe 5 moves downward, lead 2 is produced relative sliding with sliding slot 501, sliding slot 501
Depth need to be more than upper elastomer block 3,4 stretching planet carrier of lower elastomer block with wheel side transmission case assembly 9 and move stroke.
More specifically, centring means further includes support plate 10, support plate 10 is set in the outside of sliding shoe 5, support plate 10
It is slidably connected with sliding shoe 5, support plate 10 is utilized with upper cover 7 and is bolted.Support plate 10 provides branch for the expansion of rubber slab 6
Support, avoids rubber slab 6 from being contacted after expanding with planet carrier with taking turns the inner wall of side transmission case assembly 9, meanwhile, support plate 10 limits
The glide direction of sliding shoe 5, avoids sliding shoe 5 from misplacing.
Wherein, upper elastomer block 3 includes sliding part 301 and location division 302, sliding part 301 be set in the outside of lead 2 with
Lead 2 is slidably connected, and location division 302 is connected with sliding part 301 and extends along radial direction to the direction away from axis, positioning
The quantity in portion 302 is 8, and circumferentially shape is evenly distributed with for 8 location divisions 302.There is gap between adjacent location division 302, prevent because
To contact the uneven error for causing centre of location line larger with taking turns the inner wall of side transmission case assembly 9 for location division 302 and planet carrier,
The structure of lower elastomer block 4 is identical with upper 3 structure of elastomer block, assembly direction mirror image each other, structure identical upper bullet when simply using
Property block 3 and lower elastomer block 4 improve the interchangeability of parts, save production cost, improve efficiency of assembling.
In addition, setting pin hole 303 on location division 302, location division 302 is connected by straight pin 304 with lower elastomer block 4,
Upper elastomer block 3 is connected with lower elastomer block 4 by straight pin 304, convenient for disassembly and assembly.
Further, centring means further includes auxiliary positioning block 11, and auxiliary positioning block 11 is connected with bottom plate 1 by screw.
Auxiliary positioning block 11 is arranged on bottom plate 1, and planet carrier and wheel side transmission case assembly 9 are placed on auxiliary positioning block 11 during use
On, prevent that the misalignment of axe of axis and lead 2 of the planet carrier with taking turns side transmission case assembly 9 is too big.
The axis of sealing tapped through hole 701 is overlapped with the axis of lead 2, and sealing tapped through hole 701 can be used for connecting
Scavenging air valve, for gas is passed through at rubber slab 6, the axis of sealing tapped through hole 701 is overlapped with the axis of lead 2, avoided
Being passed through gas inequality, to cause rubber slab 6 to expand uneven, and then causes the slip route for influencing sliding shoe 5.
Further, support column 8 is fixed through upper cover 7 and with nut, is installed spring shim additional, is prevented nut loosening.
The centring means of the utility model, in use, planet carrier and wheel side transmission case assembly 9 are placed on auxiliary positioning
On block 11, planet carrier is set to be set in the outside of elastomer block 3, lower elastomer block 4 and sliding shoe 5 with taking turns side transmission case assembly 9, to
Gap between upper cover 7 and rubber slab 6 is passed through gas, and rubber slab 6 expands under gas pressure effect, promotes sliding shoe 5 downward
Slide, sliding shoe 5 promotes upper elastomer block 3 and lower elastomer block 4 to enclose strut and tightly support planet carrier and wheel side speed change around
On the inner wall of device housing assy 9, planet carrier is realized with taking turns the centralized positioning and clamping of side transmission case assembly 9, easy to Drilling operation,
The turning, milling, boring process of Internal hole positioning can be also applied at the same time.
Apply specific case in the utility model to be set forth the principle and embodiment of the utility model, the above
The explanation of embodiment is only intended to help the method and its core concept for understanding the utility model；Meanwhile for the one of this area
As technical staff, according to the thought of the utility model, in specific embodiments and applications there will be changes.To sum up
Described, this specification content should not be construed as the limitation to the utility model.
Claims (8)
- A kind of 1. centring means, it is characterised in that：It is described including bottom plate, lead, upper elastomer block, lower elastomer block and sliding shoe Lead is arranged on the bottom plate, and the upper elastomer block, the lower elastomer block are set with up and down two in the lead Hold and can be slided up and down along the lead, the upper elastomer block, the lower elastomer block are made by elastic material, described Upper elastomer block is connected with the lower elastomer block, and the sliding shoe is slidably connected with the lead, the upper elastomer block, described Lower elastomer block is respectively positioned between the bottom plate and the sliding shoe, and the sliding shoe top is additionally provided with rubber slab, the rubber The top of plate is additionally provided with upper cover, and the upper cover is connected with the bottom plate by support column, and there is the upper cover sealing screw thread to lead to Hole.
- 2. centring means according to claim 1, it is characterised in that：The lead is cylindrical-shaped structure, the slip Block has columned sliding slot, and the lead is arranged in the sliding slot, and the support column connects the upper cover and the bottom Plate.
- 3. centring means according to claim 2, it is characterised in that：Support plate is further included, the support plate is set in institute The outside of sliding shoe is stated, the support plate is slidably connected with the sliding shoe, and the support plate is connected with the upper cover using bolt Connect.
- 4. centring means according to claim 1, it is characterised in that：The upper elastomer block includes sliding part and location division, The sliding part is slidably connected with the lead, and the location division is connected with the sliding part and along radial direction to away from axis The direction extension of line, the quantity of the location division is 8, and circumferentially shape is evenly distributed with for 8 location divisions.
- 5. centring means according to claim 4, it is characterised in that：Pin hole, the positioning are set on the location division Portion is connected by straight pin with the lower elastomer block.
- 6. centring means according to claim 1, it is characterised in that：Further include auxiliary positioning block, the auxiliary positioning block It is connected with the bottom plate by screw.
- 7. centring means according to claim 1, it is characterised in that：The axis of the sealing tapped through hole and the guiding The axis of column overlaps.
- 8. centring means according to claim 1, it is characterised in that：The support column is consolidated through the upper cover and with nut It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721275365.0U CN207223426U (en) | 2017-09-30 | 2017-09-30 | A kind of centring means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721275365.0U CN207223426U (en) | 2017-09-30 | 2017-09-30 | A kind of centring means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207223426U true CN207223426U (en) | 2018-04-13 |
Family
ID=61849969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721275365.0U Active CN207223426U (en) | 2017-09-30 | 2017-09-30 | A kind of centring means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207223426U (en) |
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2017
- 2017-09-30 CN CN201721275365.0U patent/CN207223426U/en active Active
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