CN100591941C - Medical tower crane rotary arm - Google Patents
Medical tower crane rotary arm Download PDFInfo
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- CN100591941C CN100591941C CN200710132266A CN200710132266A CN100591941C CN 100591941 C CN100591941 C CN 100591941C CN 200710132266 A CN200710132266 A CN 200710132266A CN 200710132266 A CN200710132266 A CN 200710132266A CN 100591941 C CN100591941 C CN 100591941C
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- pivoted arm
- brasses
- hollow
- air pressure
- brake disc
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Abstract
The invention relates to a swinging jib for a medical tower crane, which comprises a swinging jib sleeve, a hollow swinging jib which is arranged in the swinging jib sleeve and is connected with the swinging jib sleeve through a bearing, a brake apparatus arranged on the end surface of the hollow swinging jib, and a damping device arranged between the hollow swinging jib and the swinging jib sleeve, wherein the brake apparatus consists of a brake disc arranged on the end surface of the hollow swinging jib, an air pressure expansion ring arranged at an outer ring of the brake disc, an air source, and an expansion ring air pressure control device; and the damping device consists of a copper bushing and a connecting device which is arranged on the swinging rib sleeve and is connected with thecopper bushing. The swinging jib for the medical tower crane can ensure that a worktable is steady and slow during the movement and can stay still when the worktable moves to the required position, thereby ensuring that the worktable is steady and has reliable positioning.
Description
Technical field
The present invention relates to a kind of revoliving arm of medical hoist tower, relate in particular to the pneumatic spacing braking device and the mechanical damping device of medical hoist tower revolving arm.
Background technique
Medical surgery room tower crane bottom is provided with worktable, places some operating theater instruments, instrument and apparatus etc.In actual use, worktable needs to rotate, and there is the low problem of revolution control degree in similar swirl gear when revolution.Because worktable weight is heavier, promptly have thrust promptly can produce very big inertia slightly, can make worktable apace, rotate significantly, rock.And in the operation on the worktable some article can not rock, therefore such swirl gear brings very big inconvenience for the operation technique person, simultaneously, also has some potential safety hazards.
Summary of the invention
The present invention is directed to above technical problem, provide a kind of medical hoist tower revolving arm that can make rotate to rotate slowly, steadily, and moved to when requiring the position, can transfixion, thus guarantee that worktable stablizes, locatees reliable medical hoist tower revolving arm.
Technological scheme of the present invention is: comprise the pivoted arm cover, be arranged on the hollow pivoted arm that is connected by bearing with the pivoted arm cover in the pivoted arm cover, it also comprises the braking device that is arranged on the hollow pivoted arm end face, be arranged on hollow pivoted arm and the pivoted arm damping device between overlapping; Described braking device by be arranged on the brake disc on the hollow pivoted arm end face, the air pressure expansion loop that is arranged on the brake disc outer ring and source of the gas, the expansion loop Pneumatic controller is formed; Brake disc is coaxial with hollow pivoted arm and fixedly connected, and its outer end is positioned at pivoted arm cover running-on; The air pressure expansion loop is fixedly connected on brake disc dish edge surface; The air pressure expansion loop links to each other by tracheae with source of the gas, Pneumatic controller; Described damping device by brasses, be arranged on pivoted arm and put the connection set that is connected with brasses and form, brasses is provided with the cambered surface with hollow pivoted arm external cylindrical surface coupling; Be arranged on pivoted arm and put the connection set that is connected with brasses and be made up of adjusting screw, spring, brasses is provided with the pit corresponding with adjusting screw, and spring is arranged between the pit and adjusting screw of brasses.
Be provided with a circle groove on brake disc dish edge, the air pressure expansion loop is located in the groove.
The corresponding air pressure expansion loop of described pivoted arm cover inwall position is provided with rubbing surface.
Described spring is belleville spring, helical spring, elastic caoutchouc circle.
Be provided with the guiding pin between described brasses and the pivoted arm cover.
Outside hollow pivoted arm, be provided with guard ring.
The present invention is provided with a brake disc by pneumatic control in the upper end of hollow pivoted arm, when pivoted arm turns to set angle, the operation Pneumatic controller, the air pressure expansion loop expands, expansion loop cylindrical after the expansion contacts with pivoted arm cover inwall, roof pressure pivoted arm cover inwall produces bigger frictional force, makes pivoted arm cover and hollow pivoted arm position relative fixed.Can guarantee that hollow pivoted arm and pivoted arm cover can held stationary, guarantee that worktable is not offset.Put at pivoted arm simultaneously and be provided with a brasses that contacts with hollow pivoted arm periphery, and adopt spring to keep the pressure of brasses to hollow pivoted arm, when hollow pivoted arm rotates, the brasses cambered surface produces surface friction drag to hollow pivoted arm, make the pivoted arm cover and the relative movement of hollow pivoted arm steady, slow, can not produce bigger motional inertia.When guaranteeing working table movement, the present invention steadily and slowly, and moves to when requiring the position, can transfixion, thus guarantee that worktable is stable, the location is reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is hollow pivoted arm among the figure, the 2nd, and groove, the 3rd, pivoted arm cover, the 4th, expansion loop, the 5th, brake disc, the 6th, attachment screw, the 7th, guard ring;
Fig. 2 is an A-A view among Fig. 1
8 is rubbing surfaces of pivoted arm cover inwall among the figure, the 9th, and source of the gas mouth, the 10th, air pressure control mouth;
Fig. 3 is a B-B view among Fig. 1
11 is adjusting screw among the figure, the 12nd, and guiding pin, the 13rd, spring, the 14th, brasses.
Embodiment
The present invention includes pivoted arm cover 3 and be arranged on hollow pivoted arms 1 free to rotate in the pivoted arm cover 3, it also comprises the braking device that is arranged on hollow pivoted arm 1 end face, be arranged on hollow pivoted arm 1 and pivoted arm overlaps damping device between 3.
Braking device such as Fig. 1,2 are made up of the Pneumatic controller that is arranged on the brake disc 5 on hollow pivoted arm 1 end face, the air pressure expansion loop 4 that is arranged on brake disc 5 outer rings and source of the gas, expansion loop 4; Brake disc 5 is coaxial with hollow pivoted arm 1, and fixedly connected by attachment screw 6, its outer end is positioned at pivoted arm and overlaps 3 running-ons; Air pressure expansion loop 4 is fixedly connected on brake disc 5 dish edge surfaces; Air pressure expansion loop 4 links to each other by tracheae with source of the gas, Pneumatic controller.For making air pressure expansion loop 4 location reliable, on brake disc 5 dish edge, be provided with a circle groove 2, air pressure expansion loop 4 is located in the groove 2.For guaranteeing braking effect, overlap the corresponding air pressure expansion loop of 3 inwalls 4 positions at pivoted arm and establish rubbing surface 8.
Damping device such as Fig. 1,3, by brasses 14, be arranged on the connection set that is connected with brasses 14 on the pivoted arm cover 3 and form, brasses 14 is provided with the cambered surface of mating with hollow pivoted arm 1 external cylindrical surface; Be arranged on the connection set that is connected with brasses 14 on the pivoted arm cover 3 and be made up of adjusting screw 11, spring 13, brasses 14 is provided with the pit corresponding with adjusting screw 11, and spring 13 is arranged between the pit and adjusting screw 11 of brasses 14.Spring 13 can be selected belleville spring, helical spring, elastic caoutchouc circle for use.
For guaranteeing the relative position between brasses 14 and the pivoted arm cover 3, between brasses 14 and pivoted arm cover 3, be provided with guiding pin 12.Brasses 14 can axially move along guiding pin 12 like this.
Because under the long-term motion friction condition, have bigger wearing and tearing between brasses 14 and the pivoted arm cover 3, the present invention also can be provided with guard ring 7 outside hollow pivoted arm 1.Kinetic friction between 14 of brasses and the guard ring 7 like this, and guard ring 7 is with low cost damages the back and changes and get final product, and has avoided hollow rotating shaft 1 surface to be worn.
The working principle of braking device is: the utilization tracheae connects source of the gas mouth 9 with source of the gas and charges into pressurized air and make characteristic that expansion loop 4 expands and realize controlling with air pressure control mouthful 10 Pneumatic controllers that are communicated with.Expansion loop 4 is in inflated condition under the normal state, produces resistance to motion between brake disc 5 and pivoted arm cover 3, makes hollow pivoted arm 1 be in stationary state.Press the selector valve button of Pneumatic controller, expansion loop 4 communicates with atmosphere, expansion loop 4 releases, and expansion loop 4 is in contraction state, and the resistance that results from brake disc 5 disappears, but hollow pivoted arm 1 is in the freedom turn state.
The working principle of damping device is, one group of butterfly spring of preferred employing, apply certain resistance by adjusting screw 11, make the brasses 14 that is positioned at its underpart form the effect of " damping steel ball ", brasses 14 is close on hollow pivoted arm 1 surface, make whole swivel gear that certain resistance be arranged when rotated, reduce to turn round inertia, thereby guarantee that whole swirl gear is more reliable and more stable.
Claims (6)
1, medical hoist tower revolving arm, comprise the pivoted arm cover, be arranged on the hollow pivoted arm that is connected by bearing with the pivoted arm cover in the pivoted arm cover, it is characterized in that, it also comprise be arranged on the braking device on the hollow pivoted arm end face and be arranged on hollow pivoted arm and pivoted arm cover between damping device; Described braking device by be arranged on the brake disc on the hollow pivoted arm end face, the air pressure expansion loop that is arranged on the brake disc outer ring and source of the gas, the expansion loop Pneumatic controller is formed; Brake disc is coaxial with hollow pivoted arm and fixedly connected, and its outer end is positioned at pivoted arm cover running-on; The air pressure expansion loop is fixedly connected on brake disc dish edge surface; The air pressure expansion loop links to each other by tracheae with source of the gas, Pneumatic controller; Described damping device by brasses, be arranged on pivoted arm and put the connection set that is connected with brasses and form, brasses is provided with the cambered surface with hollow pivoted arm external cylindrical surface coupling; Be arranged on pivoted arm and put the connection set that is connected with brasses and be made up of adjusting screw, spring, brasses is provided with the pit corresponding with adjusting screw, and spring is arranged between the pit and adjusting screw of brasses.
2, medical hoist tower revolving arm according to claim 1 is characterized in that, is provided with a circle groove on brake disc dish edge, and the air pressure expansion loop is located in the groove.
3, medical hoist tower revolving arm according to claim 1 is characterized in that, the corresponding air pressure expansion loop of described pivoted arm cover inwall position is provided with rubbing surface.
4, medical hoist tower revolving arm according to claim 1 is characterized in that, described spring is belleville spring, helical spring or elastic caoutchouc circle.
5, medical hoist tower revolving arm according to claim 1 is characterized in that, is provided with the guiding pin between described brasses and the pivoted arm cover.
6, according to claim 1,4 or 5 described medical hoist tower revolving arms, it is characterized in that, outside hollow pivoted arm, be provided with guard ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710132266A CN100591941C (en) | 2007-09-14 | 2007-09-14 | Medical tower crane rotary arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710132266A CN100591941C (en) | 2007-09-14 | 2007-09-14 | Medical tower crane rotary arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101387322A CN101387322A (en) | 2009-03-18 |
| CN100591941C true CN100591941C (en) | 2010-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710132266A Active CN100591941C (en) | 2007-09-14 | 2007-09-14 | Medical tower crane rotary arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100591941C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974654A (en) * | 2012-12-03 | 2013-03-20 | 无锡常欣科技股份有限公司 | Vertical pay-off rack damper |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312946B (en) * | 2010-07-09 | 2016-08-03 | 湖南太阳龙医疗科技有限公司 | A kind of electromagnetic braking device for medical tower crane joint |
| CN102494064B (en) * | 2011-12-09 | 2014-12-10 | 迈柯唯医疗设备(苏州)有限公司 | Force adjustment device for medical gas-stop braking system |
| CN102488560B (en) * | 2011-12-19 | 2013-11-06 | 迈柯唯医疗设备(苏州)有限公司 | Shaft cover device for medical hoisting tower |
| CN103181825B (en) * | 2011-12-30 | 2015-09-30 | 北京谊安医疗系统股份有限公司 | Location revolving structure assembly |
| CN103185049B (en) * | 2011-12-30 | 2015-09-30 | 北京谊安医疗系统股份有限公司 | For the fitting structural assembly of fixing tower crane spiral arm decorative cover |
| CN103353050B (en) * | 2013-07-17 | 2015-07-15 | 迈柯唯医疗设备(苏州)有限公司 | Independent rotating mechanism |
| CN110420062B (en) * | 2019-09-18 | 2021-02-26 | 孔德友 | Auxiliary operation arm for medical operation |
-
2007
- 2007-09-14 CN CN200710132266A patent/CN100591941C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974654A (en) * | 2012-12-03 | 2013-03-20 | 无锡常欣科技股份有限公司 | Vertical pay-off rack damper |
| CN102974654B (en) * | 2012-12-03 | 2015-09-16 | 无锡常欣科技股份有限公司 | Vertical pay-off rack damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101387322A (en) | 2009-03-18 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090318 Assignee: Jiangsu Keling Medical Appliance Co., Ltd. Assignor: Liu Chunhai Contract record no.: 2010320000309 Denomination of invention: Medical hoist tower revolving arm Granted publication date: 20100224 License type: Exclusive License Record date: 20100324 |