CN109780054A - A kind of plastic bearing bushing and its manufacturing method - Google Patents
A kind of plastic bearing bushing and its manufacturing method Download PDFInfo
- Publication number
- CN109780054A CN109780054A CN201910078158.3A CN201910078158A CN109780054A CN 109780054 A CN109780054 A CN 109780054A CN 201910078158 A CN201910078158 A CN 201910078158A CN 109780054 A CN109780054 A CN 109780054A
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- China
- Prior art keywords
- outer ring
- injection molding
- inner ring
- guide pad
- plastic
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- 229920003023 plastic Polymers 0.000 title claims abstract description 34
- 239000004033 plastic Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000001746 injection moulding Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 238000010137 moulding (plastic) Methods 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 229920006060 Grivory® Polymers 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of plastic bearing bushings, it includes inner ring, outer ring and rotary joint, and the inner ring is connect with outer ring by rotary joint, and the step structure for placing bearing is equipped in inner ring, on the outer ring, are equipped with limited block and guide pad；The invention also discloses a kind of manufacturing methods of plastic bearing bushing, including three master operations: A) inner ring injection molding；B) the two-color rotary injection molding of outer ring and limited block, guide pad；C) the plastic molding of rotary joint.A kind of plastic bearing bushing and its manufacturing method that the present invention obtains, traditional metal material is substituted using plastics, alleviate pts wt, it is that bearing insert has flexible damping effect, while guaranteeing that transmission mechanism is run within the scope of specified tolerances, reduce vibration damage caused by machine, improves service life；Its manufacturing method uses two-shot molding process, improves production efficiency and switching performance, can adapt to the large-scale production needs of the industries such as automobile, aviation.
Description
Technical field
The present invention relates to a kind of bearing insert, especially a kind of plastic bearing bushing and its manufacturing method.
Background technique
Bearing insert is a kind of for positioning, protecting the part of bearing, in a variety of occasions such as aviation, automobile, manufacturing equipment
Widely applied；In transmission device, bearing and coupled drive mechanism suffer from the effect of radial force, in reality
Border generates swing in operating, and Conventional bearing cartridge is mostly to be rigidly connected, and vibration is larger, can not play to bearing and work is effectively protected
With being also easy to make drive mechanism impaired due to shaking.
Summary of the invention
There is provided the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art a kind of production of flexible material, can protect
Hold the stable plastic bearing bushing in transmission mechanism position and its manufacturing method.
To achieve the goals above, a kind of plastic bearing bushing designed by the present invention, it includes inner ring, outer ring and rotation
Connector, the inner ring are connect with outer ring by rotary joint, the step structure for placing bearing are equipped in inner ring, in the outer ring
On, it is equipped with limited block and guide pad, the guide pad outer ring center opposite with rotary joint is symmetrical arranged, the limited block and rotation
Adapter, guide pad are separated by a quarter outer ring circular arc.
In order to obtain good limit and switching performance, the rotary joint is equipped with I-shaped structure, described I-shaped
Structure both ends are bonded with the inner headed face of the periphery of inner ring and outer ring respectively.
The inner ring, outer ring use Grivory HT2V-15H material, and the rotary joint, guide pad and limited block are adopted
With 677 material of Riteflex.The Grivory HT2V-15H material and 677 material of Riteflex is all that can purchase in the market
The conventional model material bought, no further details to be given herein.
In order to guarantee that bearing insert plays fixed position-limiting action to bearing, the inner and outer ring junction applies 600N load
Afterwards, being subjected to displacement distance must not exceed 0.4mm, and after applying 160N load to guide pad, shift length is no more than 0.4mm.
In order to guarantee that bearing insert plays fixed position-limiting action to bearing, the stroke limit of inner ring is 0.56 ±
0.05mm。
The manufacturing method of above-mentioned bearing insert, including following process:
A) inner ring injection molding；
B) the two-color rotary injection molding of outer ring and limited block, guide pad；
C) the plastic molding of rotary joint.
In order to guarantee moulding have preferable quality, the process A) in inner ring injection molding refer to using injection molding manner
Inner ring is manufactured, in the production process, as shown in figure 5, inner ring upper mould benevolence is equipped with the first glue-feeder and the second glue-feeder is total
Two glue-feeders, plastic cement raw material are cooled and shaped after being filled with the type chamber of mold by the first glue-feeder and the second glue-feeder.
In order to improve processing efficiency and guarantee limited block, guide pad and outer ring bonding strength, the process B) in outer ring
And the two-color rotary injection molding of limited block, guide pad includes including using the injection molding machine equipment with dijection platform, double molds
A) outer ring injection molding, b) mold moving in rotation and c) three limited block, guide pad injection molding steps；Wherein step b) mold
Moving in rotation refers to that outer ring after in-mold molding, specified angle is rotated under the drive of mold, reaches double coloured plastic injection machine
Another station molds with the spout of another station, carries out the injection molding of limited block and guide pad.
Be equipped on outer ring moulds tool in order to guarantee to be molded quality, when implementation steps a) outer ring injection molding third glue-feeder,
4th glue-feeder.
Bonding strength, the process C are installed and guaranteed in order to facilitate processing) the plastic molding of rotary joint, referring to will add
After the inner ring that work is completed and the outer ring with limited block, guide pad are mounted on joint mold, using the method for injection molding, in connector
Directly rotary joint molding, set are connected on outer ring and the link position of inner ring in mold.
A kind of plastic bearing bushing that the present invention obtains, traditional metal material is substituted using plastics, alleviates part weight
Amount, is that bearing insert has flexible damping effect, while guaranteeing that transmission mechanism is run within the scope of specified tolerances, is reduced
Vibration is damaged caused by machine, improves service life；Its manufacturing method uses two-shot molding process, improves production efficiency
And switching performance, it can adapt to the large-scale production needs of the industries such as automobile, aviation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of plastic bearing bushing of the present invention and its manufacturing method middle (center) bearing bushing；
Fig. 2 is the axonometric drawing of plastic bearing bushing；
Fig. 3 is the enlarged diagram in Fig. 1 at A；
Fig. 4 is the process flow diagram of a kind of plastic bearing bushing of the present invention and its manufacturing method；
Fig. 5 is the inner ring upper mould benevolence signal used during manufacturing of a kind of plastic bearing bushing of the present invention and its manufacturing method
Figure；
Fig. 6 is a kind of plastic bearing bushing of the present invention and its manufacturing method outer ring mold schematic diagram used during manufacturing.
In figure: inner ring 1, outer ring 2, rotary joint 3, limited block 4, guide pad 5, inner ring upper mould benevolence 6, outer ring mold 7,
Step structure 11, I-shaped structure 31, the first glue-feeder 61, the second glue-feeder 62, third glue-feeder 71, the 4th glue-feeder 72.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1:
A kind of plastic bearing bushing and its manufacturing method of the present embodiment description, as shown in Figure 1 and Figure 2, it includes inner ring 1, outer ring
2 and rotary joint 3, the inner ring 1 is connect with outer ring 2 by rotary joint 3, and the Step-edge Junction for placing bearing is equipped in inner ring 1
Structure 11 is equipped with limited block 4 and guide pad 5, the guide pad 5 is with rotary joint 3 with respect to 2 center of circle pair of outer ring on the outer ring 2
Claim setting, the limited block 4 is separated by 2 circular arc of a quarter outer ring with rotary joint 3, guide pad 5.
In order to obtain good limit and switching performance, as shown in figure 3, the rotary joint 3 is equipped with I-shaped structure
31,31 both ends of I-shaped structure are bonded with the inner headed face of the periphery of inner ring 1 and outer ring 2 respectively.
In the present embodiment, the inner ring 1, the use Grivory HT2V-15H material of outer ring 2, the rotary joint 3,
Guide pad 5 and limited block 4 use 677 material of Riteflex.
In order to guarantee that bearing insert plays fixed position-limiting action to bearing, the inner ring 1 and 2 junction of outer ring apply 600N
After load, being subjected to displacement distance must not exceed 0.4mm, and after applying 160N load to guide pad 5, shift length is no more than
0.4mm。
In order to guarantee that bearing insert plays fixed position-limiting action to bearing, the stroke limit of inner ring 1 is 0.56 ±
0.05mm。
In actual use, bearing is mounted in bearing insert inner ring 1, and the outer ring 2 of bearing insert is then fixed on the rack,
When drive lower swing of the bearing in transmission device, flexible deformation occurs for rotary joint 3, and guide pad 5 and limited block 4 are respectively to axis
Guiding and restriction effect are played in the swing held, and transmission device is made to do small movement in the case where not causing machinery damage, rise
To damping and limit function.
The plastic bearing bushing manufacturing method of the present embodiment, as shown in figure 4, including following process:
A) 1 injection molding of inner ring；
B) the two-color rotary injection molding of outer ring 2 and limited block 4, guide pad 5；
C) the plastic molding of rotary joint 3.
In order to guarantee that moulding has preferable quality, process A) inner ring 1 injection molding refer to and manufactured using injection molding manner
Inner ring 1, in the production process, as shown in figure 5, inner ring upper mould benevolence 6 is equipped with the first glue-feeder 61 and the second glue-feeder 62
Totally two glue-feeders, plastic cement raw material are cooled to after being filled with the type chamber of mold by the first glue-feeder 61 and the second glue-feeder 62
Type.
In order to improve processing efficiency and guarantee limited block 4, guide pad 5 and outer ring 2 bonding strength, process B) outer ring 2 and
The two-color rotary injection molding of limited block 4, guide pad 5 includes using the injection molding machine equipment with dijection platform, double molds, such as Fig. 4
It is shown, it include a) 2 injection molding of outer ring, b) mold moving in rotation and c) limited block 4, guide pad 5 injection molding, three steps；
Wherein step b) mold moving in rotation refers to that outer ring 2 after in-mold molding, rotates specified angle under the drive of mold,
Another station for reaching double coloured plastic injection machine molds with the spout of another station, carries out the injection molding of limited block 4 and guide pad 5.
Bonding strength, the process C are installed and guaranteed in order to facilitate processing) the plastic molding of rotary joint 3, referring to will add
After the inner ring 1 and outer ring 2 with limited block 4, guide pad 5 that work is completed are mounted on joint mold, using the method for injection molding,
Directly the molding of rotary joint 3, set are connected on outer ring 2 and the link position of inner ring 1 in joint mold.
A kind of plastic bearing bushing that the present invention obtains, traditional metal material is substituted using high polymer material, is alleviated
Pts wt is that bearing insert has flexible damping effect, while guaranteeing that transmission mechanism is run within the scope of specified tolerances,
Reduce vibration damage caused by machine, improves service life；Its manufacturing method uses two-shot molding process, improves life
Efficiency and switching performance are produced, can adapt to the large-scale production needs of the industries such as automobile, aviation.
Embodiment 2:
A kind of plastic bearing bushing and its manufacturing method of the present embodiment description, as shown in fig. 6, in addition to the feature described in the embodiment 1,
In order to guarantee to be molded quality, third glue-feeder the 71, the 4th is equipped on outer ring moulds tool 7 when implementation steps a) 2 injection molding of outer ring
Glue-feeder 72.
A kind of plastic bearing bushing provided in this embodiment and its manufacturing method use multiple glue-feeders in injection molding, mention
The high efficiency and quality of injection molding.
Claims (7)
1. a kind of plastic bearing bushing, it is characterized in that include inner ring (1), outer ring (2) and rotary joint (3), the inner ring (1) with
Outer ring (2) is connected by rotary joint (3), the step structure (11) for placing bearing is equipped in inner ring (1), in the outer ring
(2) on, it is equipped with limited block (4) and guide pad (5), the guide pad (5) and rotary joint (3) are symmetrical with respect to outer ring (2) center of circle
Setting, the limited block (4) and rotary joint (3), guide pad (5) are separated by a quarter outer ring (2) circular arc.
2. a kind of plastic bearing bushing according to claim 1, it is characterized in that the rotary joint (3) is equipped with I-shaped
Structure (31), I-shaped structure (31) both ends are bonded with the inner headed face of the periphery of inner ring (1) and outer ring (2) respectively.
3. a kind of manufacturing method of plastic bearing bushing according to claim 1, it is characterized in that including following process:
A) inner ring (1) injection molding；
B) the two-color rotary injection molding of outer ring (2) and limited block (4), guide pad (5)；
C) the plastic molding of rotary joint (3).
4. the manufacturing method of a kind of plastic bearing bushing according to claim 3, it is characterized in that the process A) in it is interior
Ring (1) injection molding is referred to and is set in inner ring upper mould benevolence (6) in the production process using injection molding manner manufacture inner ring (1)
There are the first glue-feeder (61) and the second glue-feeder (62) totally two glue-feeders, plastic cement raw material pass through the first glue-feeder (61) and the
Two glue-feeders (62) are cooled and shaped after being filled with the type chamber of mold.
5. the manufacturing method of a kind of plastic bearing bushing according to claim 3 or 4, it is characterized in that the process B) China and foreign countries
The two-color rotary injection molding of ring (2) and limited block (4), guide pad (5) includes using the injection molding machine with dijection platform, double molds
Equipment includes a) outer ring (2) injection molding, b) mold moving in rotation and c) limited block (4), guide pad (5) injection molding three
A step；Wherein step b) mold moving in rotation refers to that outer ring (2) after in-mold molding, rotates under the drive of mold and refers to
Fixed angle reaches another station of double coloured plastic injection machine, molds with the spout of another station, carries out limited block (4) and guide pad
(5) injection molding.
6. the manufacturing method of a kind of plastic bearing bushing according to claim 5, it is characterized in that the step a) outer ring (2)
Third glue-feeder (71) and the 4th glue-feeder (72) are equipped with when injection molding on outer ring moulds tool (7).
7. the manufacturing method of a kind of plastic bearing bushing according to claim 3 or 4, it is characterized in that the process C) in rotation
The plastic molding of adapter (3) refers to the inner ring (1) that will be completed the process and the outer ring (2) with limited block (4), guide pad (5)
After being mounted on joint mold, using the method for injection molding, directly rotary joint (3) molding, set are connected in joint mold outer
On ring (2) and the link position of inner ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078158.3A CN109780054A (en) | 2019-01-28 | 2019-01-28 | A kind of plastic bearing bushing and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078158.3A CN109780054A (en) | 2019-01-28 | 2019-01-28 | A kind of plastic bearing bushing and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780054A true CN109780054A (en) | 2019-05-21 |
Family
ID=66501430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910078158.3A Pending CN109780054A (en) | 2019-01-28 | 2019-01-28 | A kind of plastic bearing bushing and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780054A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179899A (en) * | 2011-03-04 | 2011-09-14 | 慈溪市盛艺模具有限公司 | Double-color hot runner die and using method thereof |
| CN104203721A (en) * | 2012-04-12 | 2014-12-10 | Zf操作***有限公司 | Floating bearing for a steering gear |
| CN104321239A (en) * | 2012-04-12 | 2015-01-28 | Zf操作***有限公司 | Steering gear |
| CN106458251A (en) * | 2014-05-20 | 2017-02-22 | 罗伯特博世汽车转向有限公司 | Steering gear |
| CN206031465U (en) * | 2016-09-26 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Snail rod support structure and electric power steering system |
| CN107985394A (en) * | 2017-12-08 | 2018-05-04 | 芜湖世特瑞转向***有限公司 | Suitable for the rocker compensating gear of the reducing gear of electric boosting steering system |
| DE102016122378A1 (en) * | 2016-11-21 | 2018-05-24 | Robert Bosch Gmbh | steering system |
| CN209539823U (en) * | 2019-01-28 | 2019-10-25 | 宁波易锐汽车零部件有限公司 | Plastic bearing bushing |
-
2019
- 2019-01-28 CN CN201910078158.3A patent/CN109780054A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179899A (en) * | 2011-03-04 | 2011-09-14 | 慈溪市盛艺模具有限公司 | Double-color hot runner die and using method thereof |
| CN104203721A (en) * | 2012-04-12 | 2014-12-10 | Zf操作***有限公司 | Floating bearing for a steering gear |
| CN104321239A (en) * | 2012-04-12 | 2015-01-28 | Zf操作***有限公司 | Steering gear |
| US20150053034A1 (en) * | 2012-04-12 | 2015-02-26 | Zf Lenksysteme Gmbh | Floating bearing for a steering gear |
| CN106458251A (en) * | 2014-05-20 | 2017-02-22 | 罗伯特博世汽车转向有限公司 | Steering gear |
| CN206031465U (en) * | 2016-09-26 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Snail rod support structure and electric power steering system |
| DE102016122378A1 (en) * | 2016-11-21 | 2018-05-24 | Robert Bosch Gmbh | steering system |
| CN107985394A (en) * | 2017-12-08 | 2018-05-04 | 芜湖世特瑞转向***有限公司 | Suitable for the rocker compensating gear of the reducing gear of electric boosting steering system |
| CN209539823U (en) * | 2019-01-28 | 2019-10-25 | 宁波易锐汽车零部件有限公司 | Plastic bearing bushing |
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