CN202991854U - Combined bearing applied to cantilever of medical crane tower - Google Patents
Combined bearing applied to cantilever of medical crane tower Download PDFInfo
- Publication number
- CN202991854U CN202991854U CN 201220754675 CN201220754675U CN202991854U CN 202991854 U CN202991854 U CN 202991854U CN 201220754675 CN201220754675 CN 201220754675 CN 201220754675 U CN201220754675 U CN 201220754675U CN 202991854 U CN202991854 U CN 202991854U
- Authority
- CN
- China
- Prior art keywords
- bearing
- needle roller
- thrust needle
- seat
- roller 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 - Fee Related
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a combined bearing applied to a cantilever of a medical crane tower. The combined bearing is divided into five parts, namely, a bearing upper seat, a bearing lower seat, a bearing middle shaft, a planar thrust needle roller bearing and an aligning thrust needle roller bearing, wherein the planar thrust needle roller bearing is arranged on a planar step between the bearing upper seat and the bearing lower seat, and the aligning thrust needle roller bearing is arranged on an inclined plane between the bearing upper seat and the bearing lower seat; and the bearing middle shaft and the bearing lower seat are connected through opposite threads, and lock the planar thrust needle roller bearing and the aligning thrust needle roller bearing. According to the combined bearing, only one planar thrust needle roller bearing and one aligning thrust needle roller bearing are used, so that a bearing seat is small in volume; due to the planar thrust needle roller bearing, the radial load bearing capacity of the bearing is strong, and due to the aligning thrust needle roller bearing, the coaxiality between the bearing upper seat and the bearing lower seat is high, so that the whole crane tower is strong in the capacity of keeping horizontal; and moreover, the combined bearing is easier to produce and install, and more stable during use and running.
Description
One, affiliated technical field
The utility model relates to a kind of bearing, more particularly relates to a kind of combination bearing that is applied to the medical hoist tower cantilever.
Two, background technique
Medical hoist tower is mainly used in the terminal switching of the medical gases such as operating room oxygen supply, attraction, pressurized air, nitrogen as being widely used in the requisite medical equipment of modernization operating room at present, strong/light current integrated, and the carrying of instrument and equipment.And cantilever and connection bearing thereof be as most important bearing assembly in medical hoist tower, needs to remain on the time in rotary moving, keeps fabulous levelness and stability.And be applied at present the bearing of tower crane, and adopting deep groove ball bearing or biplane needle roller thrust bearing more, such combination bearing often exists that horizontal conservation degree is bad or complex structure takes up room greatly, and assembly and disassembly is loaded down with trivial details, rotates the problems such as unstable.
Three, summary of the invention
The purpose of this utility model is to provide a kind of combination bearing that is applied to the medical hoist tower cantilever, in the confined space, and levelness and stability when rotating to reach the maintenance cantilever.
By above-mentioned purpose, combination bearing of the present utility model mainly comprises five parts: a bearing seat of honour, a bearing base, a bearing axis, a plane needle roller thrust bearing and an aligning needle roller thrust bearing.Described plane needle roller thrust bearing is on the plane step between the bearing seat of honour and bearing base; The aligning needle roller thrust bearing is on the tapered plane between the bearing seat of honour and bearing axis.
Described bearing axis is threaded by relative with bearing base, and locking plane needle roller thrust bearing and aligning needle roller thrust bearing.
Described plane needle roller thrust bearing and aligning needle roller thrust bearing are standard rolling bearing, are comprised of needle roller, retainer and packing ring.The described bearing seat of honour is connected the bolt hole that is connected with cantilever with bearing base.According to the utility model, act on a kind of medical hoist tower that comprises this combination bearing.
The utility model is compared with existing bearing, and advantage is:
Only use a plane needle roller thrust bearing and an aligning needle roller thrust bearing, the bearing support volume is little, takes up room little.Because the plane needle roller thrust bearing makes the bearing radial load bearing capacity strong, due to the aligning needle roller thrust bearing, make the bearing seat of honour and bearing base coaxality high, make the ability of the whole maintenance level of tower crane strong.The bearing axis is threaded by relative with bearing base, saving traditional bolt connects, simplify the structure, and because both relative screw-threaded coupling makes the bearing surface of contact stressed evenly, when having solved conventional method assembling in the past, rotate jiggly problem when causing discontinuity to cause bearing to use due to artificial lock bolt.It is more easy that such combination bearing is installed production, also more steady during use.
Four, description of drawings
Accompanying drawing is the sectional view of examples of implementation of the present utility model:
The 1st, the bearing seat of honour;
The 2nd, bearing base;
The 3rd, the bearing axis;
The 4th, the plane needle roller thrust bearing;
The 5th, the aligning needle roller thrust bearing.
Five, embodiment
As shown in the figure, a kind of combination bearing that is applied to the medical hoist tower cantilever comprises: 1. the bearing seat of honour, 2. bearing base, 3. bearing axis, 4. plane needle roller thrust bearing, 5. aligning needle roller thrust bearing.
First the plane needle roller thrust bearing is sleeved on bearing base during assembling, plane needle roller thrust bearing end face and bearing base is adjacent to and keeps opposing parallel; Then the bearing seat of honour being sleeved on bearing base, is also be adjacent to its plane needle roller thrust bearing end face and keep opposing parallel; Then the aligning needle roller thrust bearing is placed in the bearing seat of honour, makes the conical surface of aligning needle roller thrust bearing and the conical surface applying at the bearing seat of honour; Then the bearing axis is screwed by screw thread is relative with bearing base, bearing base and the bearing seat of honour are clamped the plane needle roller thrust bearing, bearing axis and the bearing seat of honour clamp the aligning needle roller thrust bearing.
Packing ring and the retainer of aligning needle roller thrust bearing are taper-face ring, and retainer is sandwiched between two packing rings, inlay the needle roller of some in retainer well-balancedly; The packing ring of plane needle roller thrust bearing and retainer are the plane, and retainer is sandwiched between two packing rings, are also the needle roller of inlaying some in retainer well-balancedly.
The bearing base of this bearing and bearing axis screw rear without relative movement by screw thread, make it consist of the inner ring of bearing, the bearing seat of honour is the outer ring of bearing, by plane needle roller thrust bearing and aligning needle roller thrust bearing, this bearing enclose is separated, and can relatively rotate neatly, the bolt hole of the bolt that utilizes at last suitable model by the bearing seat of honour and bearing base is connected with cantilever or arm and gets final product.
Claims (4)
1. combination bearing that is applied to the medical hoist tower cantilever, comprise the bearing seat of honour, bearing base, bearing axis, plane needle roller thrust bearing, aligning needle roller thrust bearing, it is characterized in that described plane needle roller thrust bearing is on the plane step between the bearing seat of honour and bearing base.
2. a kind of combination bearing that is applied to the medical hoist tower cantilever as claimed in claim 1, is characterized in that the aligning needle roller thrust bearing is on the tapered plane between the bearing seat of honour and bearing axis.
3. a kind of combination bearing that is applied to the medical hoist tower cantilever as claimed in claim 1, it is characterized in that: the bearing axis is threaded by relative with bearing base, and locking plane needle roller thrust bearing and aligning needle roller thrust bearing.
4. a kind of combination bearing that is applied to the medical hoist tower cantilever as claimed in claim 1, be further characterized in that: only used a plane needle roller thrust bearing and an aligning needle roller thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754675 CN202991854U (en) | 2012-12-28 | 2012-12-28 | Combined bearing applied to cantilever of medical crane tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754675 CN202991854U (en) | 2012-12-28 | 2012-12-28 | Combined bearing applied to cantilever of medical crane tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991854U true CN202991854U (en) | 2013-06-12 |
Family
ID=48563038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220754675 Expired - Fee Related CN202991854U (en) | 2012-12-28 | 2012-12-28 | Combined bearing applied to cantilever of medical crane tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149535A (en) * | 2017-06-23 | 2017-09-12 | 迈柯唯医疗设备(苏州)有限公司 | A kind of medical hoist tower rotating shaft |
-
2012
- 2012-12-28 CN CN 201220754675 patent/CN202991854U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107149535A (en) * | 2017-06-23 | 2017-09-12 | 迈柯唯医疗设备(苏州)有限公司 | A kind of medical hoist tower rotating shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102515053B (en) | Propping device of overlong rotary handle | |
| CN202991854U (en) | Combined bearing applied to cantilever of medical crane tower | |
| CN201277258Y (en) | Slide bearing for supporting flat rotation of large weight | |
| CN107524710A (en) | The bearing of raceway inside and outside detachable is set | |
| CN106865301A (en) | Yardage roll rack elasticity seat | |
| CN202132382U (en) | Self-aligning ball bearing with cylindrical bore | |
| CN204085915U (en) | A kind of friction-loaded device for mechanical load platform | |
| CN201442804U (en) | Rotating base used for crane control console | |
| CN103233978B (en) | Hollow shaft type energy-saving static pressure bearing | |
| CN202493582U (en) | Cross pin roller type slewing bearing | |
| CN202301912U (en) | Piston of cylinder of gas compressor | |
| CN206958099U (en) | The L-type single-row ball type slewing bearing of raceway groove zero air void | |
| CN201347953Y (en) | Locking type pulley bearing | |
| CN201681673U (en) | Novel earth rotary table | |
| CN202579279U (en) | Device for combining horizontal type multi-stage pump rolling bearing | |
| CN204835888U (en) | Step -by -step linear electric motor is born to high axial | |
| CN203035751U (en) | Novel rotary bearing | |
| CN211039378U (en) | Slewing bearing | |
| CN203845746U (en) | Jacking device | |
| CN202901018U (en) | Dual-roller inclined post revolving support | |
| CN204400524U (en) | A kind of spiral top lift-type jack | |
| CN204004014U (en) | A kind of glass stack bearing mounting structure | |
| CN206626102U (en) | A kind of bearing block | |
| CN202901005U (en) | Inclined column-type slewing bearing | |
| CN106624710B (en) | Straight-line motion mechanism mounting process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |