A kind of straight line driving mechanism of roller type slender bodies instrument
Technical field:
The present invention relates to a kind of straight line driving mechanisms of roller type slender bodies instrument, belong to the driving of slender bodies instrument roller type
Technical field of structures.
Background technique:
Currently, controlling in blood vessel intervention operation robot, slender bodies instrument advances, there are structures to answer for the device of setback
Miscellaneous, slender bodies device moves forward and backward the low problem of tool control precision, therefore proposes that a kind of straight line of roller type slender bodies instrument drives
Motivation structure.
Summary of the invention
In view of the above-mentioned problems, the technical problem to be solved in the present invention is to provide a kind of drives of the straight line of roller type slender bodies instrument
Motivation structure, the present invention clamp slender bodies instrument with pair of rollers, provide power by motor, control the advance of slender bodies instrument, retreat
Movement, is applicable to the slender bodies instrument of different length, and controllable precision is higher, and design is scientific and reasonable, and structure is simple, uses
It is convenient.
A kind of straight line driving mechanism of roller type slender bodies instrument of the invention, structure include: activity framework, the first bullet
Spring hold-doun nut, the first spring adjust stud, cam rail, cam, cam rotating shaft, second spring and adjust stud, the second bullet
Spring hold-doun nut, the first spring, second spring, the first castor framework, the second castor framework, the first castor installation axle,
Second castor installation axle, the first castor, the second castor, the first fast pulley installation axle, the second fast pulley installation axle, first
Fast pulley, the second fast pulley, slender bodies instrument, driving motor, the first installation axle lower bearing, the first installation axle upper bearing (metal), fastening
Screw, encoder, the second installation axle lower bearing, the second installation axle upper bearing (metal), substrate, upper cover plate, the activity framework are whole
It is welded on upper cover plate inner wall, the cam is installed on upper cover plate by cam rotating shaft, and the first spring is solid by the first spring
Determine nut and the first spring adjusts stud and is mounted in activity framework, second spring passes through second spring hold-doun nut and the second bullet
Spring adjusts stud and is mounted in activity framework, and the first castor framework and the second castor framework are nested in activity framework
In, the first castor framework is mutually crimped with the first spring, and the second castor framework is mutually crimped with second spring, the first castor frame
Body and the second castor framework can be slided up and down relative to activity framework, and it is living that the first castor installation axle is mounted on first
In driving wheel framework, the second castor installation axle is mounted in the second castor framework, and first castor passes through corresponding
First castor installation axle is mounted in the first castor framework, and the second castor is pacified by corresponding second castor installation axle
In the second castor framework, first fast pulley is mounted in the first fast pulley installation axle, the installation of the second fast pulley
In the second fast pulley installation axle.
Further, upper socket the first installation axle upper bearing (metal) of the first fast pulley installation axle, the second fast pulley peace
Upper socket the second installation axle upper bearing (metal) of axis is filled, the lower part of the first fast pulley installation axle is socketed the first installation axle lower bearing, the
The lower parts of two fast pulley installation axles is socketed the second installation axle lower bearing, the first installation axle upper bearing (metal), the first installation axle lower bearing, the
Two installation axle upper bearing (metal)s, the second installation axle lower bearing are mounted on upper cover plate by fastening screw.
Further, the shaft of the driving motor is socketed in the first fast pulley installation axle, and encoder shaft is socketed in
In second fast pulley installation axle, driving motor, encoder are installed below substrate.
The invention has the benefit that the driving structure mode of roller type slender bodies instrument of the present invention, can be applicable in difference
The slender bodies instrument of length keeps the structure space of equipment more compact without considering the problems of equipment rectilinear path.
Detailed description of the invention
Detailed description will be given by the following detailed implementation and drawings by the present invention for ease of explanation,.
Fig. 1 is schematic diagram of internal structure of the invention;
Fig. 2 is overall structure installation diagram of the invention.
In figure: 1- activity framework;2- the first spring hold-doun nut;The first spring of 3- adjusts stud;4- cam rail;5- is convex
Wheel;6- cam rotating shaft;7- second spring adjusts stud;8- second spring hold-doun nut;The first spring of 9-;10- second spring;
11- the first castor framework;12- the second castor framework;13- the first castor installation axle;14- the second castor installation axle;
15- the first castor the second castor of 16-;17- the first fast pulley installation axle;18- the second fast pulley installation axle;19- first is solid
Fixed wheel;The second fast pulley of 20-;21- slender bodies instrument;22- driving motor;23- the first installation axle lower bearing;24- first is installed
Axis upper bearing (metal);25- fastening screw;26- encoder;27- the second installation axle lower bearing;28- the second installation axle upper bearing (metal);29- base
Plate;30- upper cover plate.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings specific
Embodiment describes the present invention.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit model of the invention
It encloses.In addition, in the following description, descriptions of well-known structures and technologies are omitted, it is of the invention to avoid unnecessarily obscuring
Concept.
As shown in Figure 1 and Figure 2, a kind of straight line driving mechanism of roller type slender bodies instrument, structure include: activity framework 1,
First spring hold-doun nut 2, the first spring adjust stud 3, cam rail 4, cam 5, cam rotating shaft 6, second spring and adjust
Stud 7, second spring hold-doun nut 8, the first spring 9, second spring 10, the first castor framework 11, the second castor framework
12, the first castor installation axle 13, the second castor installation axle 14, the first castor 15, the second castor 16, the first fast pulley
Installation axle 17, the second fast pulley installation axle 18, the first fast pulley 19, the second fast pulley 20, slender bodies instrument 21, driving motor
22, the first installation axle lower bearing 23, the first installation axle upper bearing (metal) 24, fastening screw 25, encoder 26, the second installation axle lower bearing
27, the second installation axle upper bearing (metal) 28, substrate 29, upper cover plate 30,1 integral solder of activity framework in 30 inner wall of upper cover plate,
The cam 5 is installed on upper cover plate 30 by cam rotating shaft 6, and the first spring 9 passes through the first spring hold-doun nut 2 and first
Spring adjusts stud 3 and is mounted in activity framework 1, and second spring 10 is adjusted by second spring hold-doun nut 8 and second spring
Stud 7 is mounted in activity framework 1, and the first castor framework 11 and the second castor framework 12 are nested in activity framework
In 1, the first castor framework 11 is crimped with 9 phase of the first spring, and the second castor framework 12 is crimped with 10 phase of second spring, and first
Castor framework 11 and the second castor framework 12 can be slided up and down relative to activity framework 1, the first castor installation
Axis 13 is mounted in the first castor framework 11, and the second castor installation axle 14 is mounted in the second castor framework 12, described
The first castor 15 be mounted in the first castor framework 11 by corresponding first castor installation axle 13, the second castor
16 are mounted in the second castor framework 12 by corresponding second castor installation axle 14, the first fast pulley 19 installation
In the first fast pulley installation axle 17, the second fast pulley 20 is mounted in the second fast pulley installation axle 18.
Specifically, the first installation axle of upper socket upper bearing (metal) 24 of the first fast pulley installation axle 17, second is fixed
The second installation axle of upper socket upper bearing (metal) 28 of installation axle 18 is taken turns, the lower part of the first fast pulley installation axle 17 is socketed the first installation axle
Lower bearing 23, the lower part of the second fast pulley installation axle 18 are socketed the second installation axle lower bearing 27, the first installation axle upper bearing (metal) 24, the
One installation axle lower bearing 23, the second installation axle upper bearing (metal) 28, the second installation axle lower bearing 27 are mounted on by fastening screw 25
On cover board 30, the shaft of the driving motor 22 is socketed in the first fast pulley installation axle 17, and 26 shaft of encoder is socketed in
In second fast pulley installation axle 18, driving motor 22, encoder 26 are installed on 29 lower section of substrate.
When cam is rotated by 90 ° counterclockwise, entire activity framework is moved down, and the first action roller, the second castor and first are solid
Determine idler wheel, the second fast pulley clamps slender bodies instrument, after driving motor work, driving force passes through the biography of the first fast pulley
It passs, drives slender bodies instrument for linear motion.
Basic principles and main features of the invention, advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.