CN209304605U - A kind of steering connections of face contact friction - Google Patents
A kind of steering connections of face contact friction Download PDFInfo
- Publication number
- CN209304605U CN209304605U CN201822010019.0U CN201822010019U CN209304605U CN 209304605 U CN209304605 U CN 209304605U CN 201822010019 U CN201822010019 U CN 201822010019U CN 209304605 U CN209304605 U CN 209304605U
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- connector
- rotary shaft
- face contact
- steering connections
- contact friction
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Abstract
The utility model discloses a kind of steering connections of face contact friction, including upper connector and lower connector stacked on top of one another, remain coaxial by the online structure of axis between upper connector and lower connector and are flexibly connected；Handle and rotary shaft are installed, inner cavity is successively arranged crushing block and friction plate from top to bottom, and the positioning mechanism of limitation crushing block rotation is equipped in cylinder, and end cap is equipped with the position-limit mechanism that limitation rotary shaft moves up and down above upper connector.The utility model cooperates based on screw rod, increases the principle of friction area, provides a kind of steering connections for the face contact friction that fastening effect is stronger, shaft joint is more stable.The steering connections reduces the volume and weight of product by structure optimization as far as possible, and cooperation is close between structure, ensure that higher load-bearing capacity.
Description
Technical field
The utility model relates to machinery equipment field, the face for relating in particular to three-dimensional motion manipulator in medical instrument is connect
Touch the steering connections of wiping.
Background technique
In medical instrument, often use can three-dimensional motion and execute detection, positioning, inserting needle device, cooperate CT
Or MR is used.To guarantee to measure the precision with inserting needle, the reliability requirement of rigid requirements and steering connections to structure is very high.
Existing steering mechanism includes following methods: 1. based on gear, rack gear, angled piece formed can three-dimensional motion turning machine
The structure of structure, the mechanism is excessively complicated, needs the position in different location adjustment gear and rack gear and is fastened, increases behaviour
The work of author is compound；2. rear ends are designed as can be rotated, medium design is many places articulation joint, and the mechanism is in joint
Design is simple, is influenced by whole boom weight, and distal end, which positions, is not allowed, and joint abrasion is big, and the fastening positioning of hinged place
It implements more complex.
Traditional joint fastener mostly uses the scheme of side fastening screw-driving, if fastening screw is undersized, tightly
Gu effect is poor, it is equivalent to and fastens at some point, parts depreciation is serious；If increasing the size of fastening screw, entire joint
Volume can significantly increase, and increase the overall weight of boom.
Utility model content
Goal of the invention: the purpose of the utility model is to provide one kind based on face and face contact increasing friction force and fastening effect
The steering connections of reliable and stable face contact friction.
Technical solution: to achieve the above object, a kind of steering connections of face contact friction of the utility model, including it is upper and lower
The upper connector of stacking and lower connector maintain coaxial activity even by the online structure of axis between the upper connector and lower connector
It connects；Handle is installed, upper connector includes cylinder and the end cap for being installed on cylinder upper surface, in end cap above the upper connector
The heart is equipped with axis hole, and cylinder lumen is successively arranged crushing block and friction plate from top to bottom, and crushing block, which corresponds to, is equipped with internal screw thread at axis hole
Hole, the rotary shaft that the handle lower end is equipped with insertion axis hole and is threadedly engaged with internal thread hole, cylinder is interior to be equipped with limitation crushing block
The positioning mechanism of rotation, the end cap are equipped with the position-limit mechanism that limitation rotary shaft moves up and down.
The existing online structure of any one axis can be used in the online structure of axis described in the utility model.As the utility model
Preferred embodiment, the cylinder lower surface are equipped with connector, and the connector diameter is less than cylinder lumen diameter；The online structure of axis
Including being contained in cylinder lumen and being fixed on the connection sheet below friction plate, the connection sheet diameter is greater than connector diameter, institute
Connection sheet is stated to be fastenedly connected by the first screw and lower connector upper surface.Further, the lower connector is equipped with upward convex
The boss for rising and matching with connector, the connection sheet are fixedly connected with boss.The connection adjacent thereto of the fastener, boss
All parts between keep certain clearance fit, improve the integraty of component, though upper connector and lower connector because
Distal weight causes mutual biggish stress, and upper connector and lower connector still keeping parallelism relationship will not incline
Tiltedly.The friction plate is fastenedly connected with connection sheet by the second screw.
The fastening principle of the utility model is: from top surface rotating handles, rotary shaft is and then rotated, and drives screw-internal thread fit
Crushing block moves downward, and realizes integrally-built fastening by the pressure in face between crushing block and friction plate and face.Specifically,
The rotary shaft is fixedly connected with handle, rotary shaft include the main shaft part being threadedly engaged with internal thread hole and be located at main shaft part
The fastening part radially thickened, the fastening part surface be equipped with external screw thread, the position-limit mechanism be set on end cap lower surface and with it is outer
The fastening nut being threadedly engaged, the shaft hole diameter are less than the maximum outside diameter of fastening nut.The online structure of aforementioned axis designs small straight
Diameter connector ensure that friction plate and connection sheet under the pressure that crushing block acts on downwards, will not impact lower connector,
Entire fastening effect all occurs in upper connector inner cavity.
The rotary shaft and handle can be a single piece, can also mutually assemble.It is examined from part processing cost angle
Consider, it is preferred to use the mode of the two assembling.As preferred embodiment, the rotary shaft, which is located above fastening part, to be additionally provided with
Bulb, the handle are equipped with cavity and in the bulb for accommodating rotary shaft in lower ending opening, the cavity, rotary shaft sides
Equipped with the fastening screw across side wall and the cooperation of bulb key.
It is furthermore preferred that the crushing block upper surface is equipped with the container for accommodating fastening nut.The design is conducive to subtract
The volume and weight of small entire mechanism.
As a preferred embodiment, the positioning mechanism is several positioning that end cap lower surface is downwardly extending
Column, the crushing block are equipped with the pilot hole passed through for positioning column.In addition to this, the positioning mechanism can also be design in upper company
Several guiding ribs of fitting inner sidewall, correspondingly, crushing block lateral wall are equipped with several guide grooves cooperated with guiding rib.
Steering connections described in the utility model is suitable for the three-dimensional reorientation boom of including but not limited to medical instruments field,
Suitable for multiple uses such as medicine detection, positioning, inserting needles.The steering connections is set to the both ends of one section of boom, can form one
It is whole, can also fasten assembling, the upper connector, lower connector side wall be respectively equipped with and the perpendicular angle of rotary shaft is arranged
Connectivity port.
The utility model has the advantages that the utility model cooperates based on screw rod, increases the principle of friction area, a kind of fastening effect is provided
The steering connections of the face contact friction stronger, shaft joint is more stable.The steering connections is reduced as far as possible by structure optimization
The volume and weight of product, cooperation is close between structure, ensure that higher load-bearing capacity.
Detailed description of the invention
Fig. 1 is the appearance diagram of the utility model；
Fig. 2 is the diagrammatic cross-section for being carried out example 1；
Fig. 3 is the decomposition diagram of embodiment 1.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Embodiment 1
Incorporated by reference to shown in Fig. 1, Fig. 3, a kind of steering connections of face contact friction, including upper connector 100 stacked on top of one another
With lower connector 200, remains coaxial by the online structure of axis between upper connector 100 and lower connector 200 and be flexibly connected；Upper connection
Handle 300 is installed above part 100, upper connector 100 includes cylinder 120 and the end cap 140 for being installed on 120 upper surface of cylinder,
End cap 140 passes through the fixation of third screw 144 and edge on cylinder.140 center of end cap is equipped with axis hole, and 120 inner cavity of cylinder is from top to bottom
It is successively arranged crushing block 160 and friction plate 180, is equipped with internal thread hole 162 at the corresponding axis hole of crushing block 160,300 lower end of handle is set
The rotary shaft 320 for having insertion axis hole and being threadedly engaged with internal thread hole 162, cylinder 120 is interior to be equipped with what limitation crushing block 160 rotated
Positioning mechanism, end cap 140 are equipped with the position-limit mechanism that limitation rotary shaft 320 moves up and down.
120 lower surface of cylinder is equipped with connector 122, and 122 diameter of connector is less than 120 intracavity diameter of cylinder；The online structure of axis
For the connection sheet 220 for being contained in 120 inner cavity of cylinder and being fixed below friction plate 180,220 diameter of connection sheet is greater than connector
122 diameters, connection sheet 220 are fastenedly connected by the first screw 222 and lower 200 upper surface of connector.
Lower connector 200 is equipped with the boss 240 for raising upward and matching with connector 122, connection sheet 220 and boss
240 are fixedly connected.Fastener, the connection adjacent thereto of boss 240 all parts between keep certain clearance fit.Friction plate
180 are fastenedly connected with connection sheet 220 by the second screw 182.
Positioning mechanism is several positioning columns 142 that 140 lower surface of end cap is downwardly extending, and crushing block 160 is equipped with for fixed
The pilot hole that position column 142 passes through.
The fastening principle of the utility model is: from top surface rotating handles 300, rotary shaft 320 is and then rotated, and drives internal screw thread
The crushing block 160 of cooperation moves downward, and realizes overall structure by the pressure in face and face between crushing block 160 and friction plate 180
Fastening.The steering connections of the utility model is suitable for the three-dimensional reorientation boom of including but not limited to medical instruments field, is applicable in
In multiple uses such as medicine detection, positioning, inserting needles.The steering connections is set to the both ends of one section of boom, can form an entirety,
Can also fasten assembling, upper connector, lower connector side wall be respectively equipped with the connectivity port with the perpendicular angle setting of rotary shaft
400, 500。
Embodiment 2
Incorporated by reference to shown in Fig. 1, Fig. 2, Fig. 3, the present embodiment on the basis of previous embodiment 1, provide rotary shaft 320 with
The Combination Design scheme of handle 300.The rotary shaft 320 is fixedly connected with handle 300, and rotary shaft 320 includes and internal thread hole
162 main shaft parts 322 being threadedly engaged and positioned at the fastening part that main shaft part 322 radially thickens 324,324 surface of fastening part
Equipped with external screw thread, position-limit mechanism is the fastening nut 326 set on 140 lower surface of end cap and with external screw thread cooperation, and the axis hole is straight
Diameter is less than the maximum outside diameter of fastening nut 326.The top that rotary shaft 320 is located at fastening part 324 is additionally provided with bulb 328, handle
300 equipped with cavity and in the bulb 328 for accommodating rotary shaft 320 in lower ending opening, cavity, and 320 side of rotary shaft is equipped with and wears
Cross the fastening screw 340 of side wall and the cooperation of 328 key of bulb.
160 upper surface of crushing block is equipped with the container 164 for accommodating fastening nut 326, conducive to entire mechanism is reduced
Volume and weight.
Embodiment 3
Positioning mechanism in embodiment 1 can also be the guiding parallel set on several and axis of upper connector inner sidewall
Muscle, correspondingly, crushing block lateral wall are equipped with several guide grooves cooperated with guiding rib.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of steering connections of face contact friction, it is characterised in that: including upper connector and lower connector stacked on top of one another, institute
It states and coaxial flexible connection is maintained by the online structure of axis between upper connector and lower connector；Handle is installed above the upper connector
Hand, upper connector include cylinder and the end cap for being installed on cylinder upper surface, and end cap central is equipped with axis hole, and cylinder lumen is from top to bottom
It is successively arranged crushing block and friction plate, crushing block corresponds to and is equipped with internal thread hole at axis hole, and the handle lower end is equipped with insertion axis hole
And the rotary shaft being threadedly engaged with internal thread hole, the interior positioning mechanism for being equipped with limitation crushing block rotation of cylinder, the end cap are equipped with
Limit the position-limit mechanism that rotary shaft moves up and down.
2. a kind of steering connections of face contact friction according to claim 1, it is characterised in that: the cylinder lower surface is set
There is connector, the connector diameter is less than cylinder lumen diameter；The online structure of axis includes being contained in cylinder lumen and fixation
Connection sheet below friction plate, the connection sheet diameter are greater than connector diameter, and the connection sheet is by the first screw under
Connector upper surface is fastenedly connected.
3. a kind of steering connections of face contact friction according to claim 2, it is characterised in that: the friction plate with connect
Piece is fastenedly connected by the second screw.
4. a kind of steering connections of face contact friction according to claim 1 or 2, it is characterised in that: the rotary shaft with
Handle is fixedly connected, and rotary shaft includes the main shaft part being threadedly engaged with internal thread hole and radially thickens positioned at main shaft part tight
Gu portion, the fastening part surface is equipped with external screw thread, and the position-limit mechanism is tight to cooperate set on end cap lower surface and with external screw thread
Gu nut, the shaft hole diameter is less than the maximum outside diameter of fastening nut.
5. a kind of steering connections of face contact friction according to claim 4, it is characterised in that: rotary shaft is located at fastening part
Top be additionally provided with bulb, the handle is equipped with cavity and in accommodating expanding for rotary shaft in lower ending opening, the cavity
Portion, rotary shaft side are equipped with the fastening screw across side wall and the cooperation of bulb key.
6. a kind of steering connections of face contact friction according to claim 5, it is characterised in that: the crushing block upper surface
Equipped with the container for accommodating fastening nut.
7. a kind of steering connections of face contact friction according to claim 5, it is characterised in that: the positioning mechanism is end
Several positioning columns that lid lower surface is downwardly extending, the crushing block are equipped with the pilot hole passed through for positioning column.
8. a kind of steering connections of face contact friction according to claim 1, it is characterised in that: the upper connector, under
The side wall of connector is respectively equipped with the connectivity port with the perpendicular angle setting of rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010019.0U CN209304605U (en) | 2018-12-03 | 2018-12-03 | A kind of steering connections of face contact friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010019.0U CN209304605U (en) | 2018-12-03 | 2018-12-03 | A kind of steering connections of face contact friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209304605U true CN209304605U (en) | 2019-08-27 |
Family
ID=67675352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822010019.0U Active CN209304605U (en) | 2018-12-03 | 2018-12-03 | A kind of steering connections of face contact friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209304605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217528A (en) * | 2021-05-24 | 2021-08-06 | 东莞市原创玩具有限公司 | Model joint structure |
-
2018
- 2018-12-03 CN CN201822010019.0U patent/CN209304605U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217528A (en) * | 2021-05-24 | 2021-08-06 | 东莞市原创玩具有限公司 | Model joint structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The third and fourth floors of J5, Nanjing University of Technology Industrial Park, No. 15, Wanshou Road, Pukou District, Nanjing, Jiangsu 210,000 Patentee after: Nanjing Yigao Medical Technology Co.,Ltd. Address before: The third and fourth floors of J5, Nanjing University of Technology Industrial Park, No. 15, Wanshou Road, Pukou District, Nanjing, Jiangsu 210,000 Patentee before: NANJING ECO MICROWAVE SYSTEM Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |