CN204003969U - A kind of pre-pressing structure of thrust-bearing - Google Patents
A kind of pre-pressing structure of thrust-bearing Download PDFInfo
- Publication number
- CN204003969U CN204003969U CN201420316512.4U CN201420316512U CN204003969U CN 204003969 U CN204003969 U CN 204003969U CN 201420316512 U CN201420316512 U CN 201420316512U CN 204003969 U CN204003969 U CN 204003969U
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- self
- butterfly spring
- thrust roller
- aligning thrust
- 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.)
- Expired - Lifetime
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
Abstract
A pre-pressing structure for thrust-bearing, comprises transmission shaft and is separately positioned on self-aligning thrust roller bearing and the tapered roller bearing on transmission shaft; It is characterized in that described self-aligning thrust roller bearing one side is provided with butterfly spring and butterfly spring supports, and lean with self-aligning thrust roller bearing.Transmission shaft is a multidiameter shaft, and large end is provided with self-aligning thrust roller bearing, and small end is provided with tapered roller bearing; Described self-aligning thrust roller bearing inner side is provided with butterfly spring and butterfly spring supports.The utility model makes the inner ring of self-aligning thrust roller bearing and outer ring produce relative displacement by butterfly spring, thereby has eliminated play, and has produced elasticity predeformation at lasso and rolling element contacting point.The features such as it has simple and reasonable, reliable performance, easy to operate, low cost of manufacture, precision is high and the life-span is long.
Description
Technical field
The utility model relates to a kind of injection machine, specifically a kind of pre-tightening apparatus of injection machine transmission shaft thrust-bearing.
Background technique
The melten gel of injection machine, glue injecting device are mainly by transmission shaft transmitting torque and axial thrust, because driving shaft mechanism will bear larger end thrust and moment of torsion, transmission shaft is supported by a tapered roller bearing 3 and the back-to-back installation of a self-aligning thrust roller bearing 2.Current, the pretension of injection machine transmission shaft mainly obtains suitable pretension amount by the round nut screwing on transmission shaft.Though this kind of firmly beforehand means can provide higher transmission accuracy and rigidity to transmission shaft, but due to transmission shaft in the course of the work, temperature difference due to bearing support and axle, can cause axial length difference, the impact of the radial expansion volume that the temperature difference of Internal and external cycle causes and the displacement being caused by load etc., can make the pretension amount of bearing change; And then may affect transmission accuracy and bearing life.
Chinese patent literature CN202846806U discloses a kind of injection machine transmission device on April 3rd, 2013, comprise connecting plate, bearings mechanism, the transmission shaft matching with connecting plate and bearings mechanism, bearings mechanism comprises the bearing support that is installed in connecting plate below, and the bearing cap that is arranged on bearing support inwall lower end, transmission shaft comprises drive end and driving end, the fitting surface of drive end and connecting plate is provided with from moistening lining, from profit lining below, be provided with deep groove ball thrust bearing, the fitting surface of driving end and bearing support is provided with deep groove ball bearing, between bearing cap and driving end, be provided with rotating seal.This model utility is provided with deep groove ball thrust bearing, deep groove ball bearing, effectively reduce transmission shaft and connecting plate, and the spin friction power between bearing support, make it to be applicable to doing high speed rotary motion, have advantages of that limit for height on rotating speed, transmission shaft are not easy in rotary course stuck, rotating seal can guarantee when transmission shaft rotates lubricant oil can water clock in barrel.But, because member is more, lead the baroque while of system, increased the cost of producing and keeping in repair, and product members is many, the operation of assembling is quite loaded down with trivial details, is unfavorable for user's use, directly affects user's using effect.Therefore, be necessary further improvement.
Model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, reliable performance, easy to operate, low cost of manufacture, precision is high and the pre-pressing structure of the thrust-bearing that the life-span is long, to overcome deficiency of the prior art.
By the pre-pressing structure of a kind of thrust-bearing of this object design, comprise transmission shaft and be separately positioned on self-aligning thrust roller bearing and the tapered roller bearing on transmission shaft; It is characterized in that described self-aligning thrust roller bearing one side is provided with butterfly spring and butterfly spring supports, and lean with self-aligning thrust roller bearing.
Described transmission shaft is a multidiameter shaft, and large end is provided with self-aligning thrust roller bearing, and small end is provided with tapered roller bearing; Described self-aligning thrust roller bearing inner side is provided with butterfly spring and butterfly spring supports, by using the resiliently deformable of butterfly spring to make self-aligning thrust roller bearing obtain suitable pretightening force.
Described self-aligning thrust roller bearing comprises rolling element, inner ring and outer ring, has a fixed gap therebetween; By butterfly spring, make the inner ring of self-aligning thrust roller bearing and outer ring produce relative displacement, thereby eliminated play, and produce elasticity predeformation at lasso and rolling element contacting point.
The below of described transmission shaft is provided with injection tailgate, and the place, outer ring of the corresponding self-aligning thrust roller bearing of injection tailgate at least arranges a T shape hole, and T shape butterfly spring is set in hole and supports, and sheathed a plurality of butterfly spring; Its elasticity predeformation makes self-aligning thrust roller bearing obtain suitable pretightening force, the rigidity of the rigidity specific thrust selfaligning roller bearing of pretension butterfly spring is much smaller, so in use the relative position of self-aligning thrust roller bearing can change, but the variation of the pretension amount of self-aligning thrust roller bearing is negligible.
Described tapered roller bearing arranged outside has round nut and round nut pressing plate; Described round nut pressing plate is close to round nut, by the round nut screwing on transmission shaft, obtains suitable pretension amount.
The right side of described transmission shaft is provided with oil hydraulic motor; The right-hand member of described oil hydraulic motor close fit transmission shaft, for plastic liquid injection provides driving source.
The utility model, by the improvement of said structure, is respectively arranged with butterfly spring and butterfly spring support at self-aligning thrust roller bearing; By butterfly spring, make the inner ring of self-aligning thrust roller bearing and outer ring produce relative displacement, thereby eliminated play, and produced elasticity predeformation at lasso and rolling element contacting point.The features such as it has simple and reasonable, reliable performance, easy to operate, low cost of manufacture, precision is high and the life-span is long.
Accompanying drawing explanation
Fig. 1 is that the utility model is executed routine structural representation.
Fig. 2 is Fig. 1 I place structure enlarged diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1-Fig. 2, the pre-pressing structure of this thrust-bearing, comprises transmission shaft 1 and is separately positioned on self-aligning thrust roller bearing 2 and the tapered roller bearing 3 on transmission shaft 1; Self-aligning thrust roller bearing 2 one sides are provided with butterfly spring 8 and butterfly spring supports 9, and lean with self-aligning thrust roller bearing.
Concretely, transmission shaft 1 is a multidiameter shaft, and large end is provided with self-aligning thrust roller bearing 2, and small end is provided with tapered roller bearing 3; Described self-aligning thrust roller bearing 2 inner sides are provided with butterfly spring 8 and butterfly spring supports 9, by using the resiliently deformable of butterfly spring 8 to make self-aligning thrust roller bearing 2 obtain suitable pretightening force; Self-aligning thrust roller bearing 2 comprises rolling element 10, inner ring 11 and outer ring 12, has a fixed gap therebetween.The below of transmission shaft 1 is provided with injection tailgate 7,12 places, outer ring of the corresponding self-aligning thrust roller bearing 2 of injection tailgate 7 at least arrange a T shape hole, T shape butterfly spring is set in hole and supports 9, and sheathed a plurality of butterfly spring 8. makes the inner ring 11 of self-aligning thrust roller bearing 2 and outer ring 12 produce relative displacement by butterfly spring 8, thereby eliminated play, and produced elasticity predeformation at lasso and rolling element 10 contacting points.
Its working principle is that elasticity predeformation makes self-aligning thrust roller bearing 2 obtain suitable pretightening force, the rigidity of the rigidity specific thrust selfaligning roller bearing 2 of pretension butterfly spring 8 is much smaller, so in use the relative position of self-aligning thrust roller bearing 2 can change, but the variation but of the pretension amount of self-aligning thrust roller bearing 2 is negligible.
Wherein tapered roller bearing 3 arranged outside have round nut 4 and round nut pressing plate 5; Described round nut pressing plate 5 is close to round nut 4, by the round nut 4 screwing on transmission shaft 1, obtains suitable pretension amount; The right side of transmission shaft 1 is provided with oil hydraulic motor 6; The right-hand member of described oil hydraulic motor 6 close fit transmission shafts 1, for plastic liquid injection provides driving source; The bottom of transmission shaft 1 is provided with injection tailgate 7, to support the transmission device of injection machine.
Above-mentioned is preferred version of the present utility model, and those of ordinary skills are to its simple modification or transformation, within all dropping on protection domain of the present utility model.
Claims (4)
1. a pre-pressing structure for thrust-bearing, comprises transmission shaft (1) and is separately positioned on self-aligning thrust roller bearing (2) and the tapered roller bearing (3) on transmission shaft (1); Described self-aligning thrust roller bearing (2) one sides are provided with butterfly spring (8) and butterfly spring supports (9), and lean with self-aligning thrust roller bearing (2);
It is characterized in that described transmission shaft (1) is a multidiameter shaft, large end is provided with self-aligning thrust roller bearing (2), and small end is provided with tapered roller bearing (3); Described self-aligning thrust roller bearing (2) inner side is provided with butterfly spring (8) and butterfly spring supports (9), by using the resiliently deformable of butterfly spring (8) to make self-aligning thrust roller bearing (2) obtain suitable pretightening force;
Described self-aligning thrust roller bearing (2) comprises rolling element (10), inner ring (11) and outer ring (12), has a fixed gap therebetween; By butterfly spring (8), make the inner ring (11) of self-aligning thrust roller bearing (2) and outer ring (12) produce relative displacement, thereby eliminated play, and produce elasticity predeformation at lasso and rolling element (10) contacting point.
2. the pre-pressing structure of thrust-bearing according to claim 1, the below that it is characterized in that described transmission shaft (1) is provided with injection tailgate (7), a T shape hole is located at least to arrange in the outer ring (12) of the corresponding self-aligning thrust roller bearing of injection tailgate (7) (2), T shape butterfly spring is set in hole and supports (9), and sheathed a plurality of butterfly spring (8); Its elasticity predeformation makes self-aligning thrust roller bearing (2) obtain suitable pretightening force, the rigidity of the rigidity specific thrust selfaligning roller bearing (2) of pretension butterfly spring (8) is much smaller, so in use the relative position of self-aligning thrust roller bearing (2) can change, but the variation of the pretension amount of self-aligning thrust roller bearing (2) is negligible.
3. according to the pre-pressing structure of the thrust-bearing described in claim 1-2 any one, it is characterized in that described tapered roller bearing (3) arranged outside has round nut (4) and round nut pressing plate (5); Described round nut pressing plate (5) is close to round nut (4), by the round nut (4) screwing on transmission shaft (1), obtains suitable pretension amount.
4. the pre-pressing structure of thrust-bearing according to claim 3, is characterized in that the right side of described transmission shaft (1) is provided with oil hydraulic motor (6); The end of described oil hydraulic motor (6) close fit transmission shaft (1), for plastic liquid injection provides driving source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316512.4U CN204003969U (en) | 2014-06-13 | 2014-06-13 | A kind of pre-pressing structure of thrust-bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316512.4U CN204003969U (en) | 2014-06-13 | 2014-06-13 | A kind of pre-pressing structure of thrust-bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003969U true CN204003969U (en) | 2014-12-10 |
Family
ID=52043974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316512.4U Expired - Lifetime CN204003969U (en) | 2014-06-13 | 2014-06-13 | A kind of pre-pressing structure of thrust-bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538589A (en) * | 2015-12-31 | 2016-05-04 | 宁波长飞亚塑料机械制造有限公司 | Double-screw and double-motor driving full-electric injection device |
| CN112815003A (en) * | 2021-03-31 | 2021-05-18 | 东方电气集团东方电机有限公司 | Rotating shaft supporting structure, bearing device and wind power generation equipment |
| CN113107972A (en) * | 2015-09-10 | 2021-07-13 | 斯凯孚公司 | Tension device and method for pre-tightening a bearing |
-
2014
- 2014-06-13 CN CN201420316512.4U patent/CN204003969U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107972A (en) * | 2015-09-10 | 2021-07-13 | 斯凯孚公司 | Tension device and method for pre-tightening a bearing |
| CN113107972B (en) * | 2015-09-10 | 2023-06-27 | 斯凯孚公司 | Tension device and method for pre-tightening bearing |
| CN105538589A (en) * | 2015-12-31 | 2016-05-04 | 宁波长飞亚塑料机械制造有限公司 | Double-screw and double-motor driving full-electric injection device |
| CN112815003A (en) * | 2021-03-31 | 2021-05-18 | 东方电气集团东方电机有限公司 | Rotating shaft supporting structure, bearing device and wind power generation equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202702153U (en) | Bearing assembler | |
| CN204003969U (en) | A kind of pre-pressing structure of thrust-bearing | |
| CN202659850U (en) | Dual seal limit type one-way belt pulley | |
| CN204572993U (en) | There is the transmission shaft structure of guide support | |
| CN103542055A (en) | Swivel nut combination unit | |
| CN204613392U (en) | A kind of darkroom rcs measurement is with turning ejection device | |
| CN202451729U (en) | Ball screw assembly supporting structure | |
| CN202176614U (en) | Flange bearing | |
| CN203756736U (en) | Self-aligning roller gear bearing | |
| CN202402602U (en) | Novel gear speed reducer | |
| CN201884485U (en) | Two-stage bearing pair structure | |
| CN103091100A (en) | Bevel gear coloring tool | |
| CN202383058U (en) | Elastohydrodynamic friction property measuring instrument of lubricating oil | |
| CN208276824U (en) | Draw horse screw rod and variable speed fluid coupling maintenance with drawing horse | |
| CN201502672U (en) | Novel stepless speed change mechanism | |
| CN203764995U (en) | Spindle supporting mechanism for milling machine | |
| CN203621887U (en) | Semi-automatic nut screwing-in machine | |
| CN202971606U (en) | Novel bearing assembly on driving shaft of wind driven generator | |
| CN103758953A (en) | Mechanical stepless speed regulator | |
| CN203053701U (en) | Bevel gear coloring tool | |
| CN202170926U (en) | Bearing | |
| CN202812042U (en) | Novel anti-impact hydraulic torque converter | |
| CN201963728U (en) | Compound subdivision knuckle bearing | |
| CN208346442U (en) | A kind of rotating shuttle shaft assembly and embroidery machine | |
| CN203653157U (en) | Automotive simple hand-operated supporting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee after: Yizhimi Co.,Ltd. Address before: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee before: GUANGDONG YIZUMI PRECISION MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |