CN208930991U - A kind of variable-ratio machine driving compasses - Google Patents

A kind of variable-ratio machine driving compasses Download PDF

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Publication number
CN208930991U
CN208930991U CN201821561848.1U CN201821561848U CN208930991U CN 208930991 U CN208930991 U CN 208930991U CN 201821561848 U CN201821561848 U CN 201821561848U CN 208930991 U CN208930991 U CN 208930991U
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China
Prior art keywords
solid cylinder
section solid
cylindrical
cylinder
upper section
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Expired - Fee Related
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CN201821561848.1U
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Chinese (zh)
Inventor
赵涵
郑宇辰
郑旭辰
岳明潭
刘涵章
张佳腾
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

A kind of variable-ratio machine driving compasses, belong to drafting instrument technical field.One lower end of upper section solid cylinder is fixedly connected with two upper end of upper section solid cylinder, transmission shaft lower end passes through the setting of cylindrical hole three of the cylindrical hole one and cylindrical hole two and lower section solid cylinder of upper section solid cylinder two in cylinder shape groove two, transmission shaft upper end is arranged in the cylinder shape groove one of upper section solid cylinder one and is fixedly connected with bevel gear gear, transmission shaft is rotatablely connected by the bearing one and upper section solid cylinder two and lower section solid cylinder being mounted in cylindrical hole one and cylindrical hole three, flexibly positioned needle mechanism is fixed in the middle part of lower section solid cylinder lower end;Joystick turns through the side wall of the cylinder shape groove one of upper section solid cylinder one and is detachably connected with bevel gear gear;Slave arm is fixedly connected with the cylindrical boss outer wall vertical of transmission shaft, and slave arm is connect with the fixed device of drawing pen.The utility model is for drawing round or circular arc.

Description

A kind of variable-ratio machine driving compasses
Technical field
The utility model belongs to drafting instrument technical field, and in particular to a kind of variable-ratio machine driving compasses.
Background technique
It is known that compasses are essential drawing tools in engineering drawing drawing process, it is mainly used for drawing circle Shape, existing compasses are mostly bipod design, and using a foot as fulcrum, another foot is pivoted, to be depicted as justifying.This compasses are set There are shortcomings for meter: first, easily damaging paper using needle as fulcrum;Second, hand force direction exists due in rotation process Constantly change, therefore fulcrum easily shifts therewith, to seriously affect mapping effect;Third, it is relatively narrow to make radius, And volume in kind is larger, to influence the practical operation and application of compasses.In this way, draftsman can often go out when drawing drawing The constructional error being now difficult to avoid that, to influence engineering plot quality.For more demanding accurate drawing, makes mistakes or cause at one Whole drawing it is discarded, to waste a large amount of manpower, financial resources, material resources.
Summary of the invention
The purpose of this utility model is that solve above-mentioned the deficiencies in the prior art, a kind of clever structure, user are provided Just, applied widely, the high variable-ratio machine driving compasses of drafting accuracy, quality.
To achieve the above object, the technical scheme adopted by the utility model is that:
A kind of variable-ratio machine driving compasses, composition includes: upper section solid cylinder and lower section solid cylinder;It is described Variable-ratio machine driving compasses further include transmission shaft, joystick, slave arm, bevel gear gear, drawing pen fixed device, bullet Property pilot pin mechanism and two bearings one;The upper section solid cylinder includes upper section solid cylinder one and upper section solid cylinder Body two;
Cylinder shape groove one, two middle part of upper section solid cylinder are equipped in the middle part of one lower end of upper section solid cylinder From top to bottom equipped with the cylindrical hole one and cylindrical hole two communicated and diameter successively decreases, one lower end of upper section solid cylinder and upper section Two upper end of solid cylinder is fixedly connected, and the cylinder shape groove one is communicated with cylindrical hole one, and cylinder shape groove one is straight Diameter is greater than the diameter of cylindrical hole one;
The lower section solid cylinder upper center, which is from top to bottom equipped with, to be communicated and cylindrical hole three that diameter successively decreases and circle Cylindrical groove two, the transmission shaft lower end are equipped with cylindrical boss, and transmission shaft lower end passes through the cylinder of upper section solid cylinder two The cylindrical hole three of shape hole one and cylindrical hole two and lower section solid cylinder is arranged in cylinder shape groove two, on transmission shaft End is arranged in the cylinder shape groove one of upper section solid cylinder one and is fixedly connected with bevel gear gear, and transmission shaft passes through The bearing one and upper section solid cylinder two and lower section solid cylinder being mounted in cylindrical hole one and cylindrical hole three turn Dynamic connection, lower section solid cylinder lower end middle part are fixed with flexibly positioned needle mechanism;
Described joystick one end turns through the side wall of the cylinder shape groove one of upper section solid cylinder one and and bevel gear Gear is detachably connected;Described slave arm one end is fixedly connected with the cylindrical boss outer wall vertical of transmission shaft, slave arm The other end is connect with the fixed device of drawing pen.
The beneficial effect of the utility model compared with the existing technology is:
The utility model structure is simpler, and processing is easier to, easy to use, has a wide range of application, and is applicable to various radius circles The accurate drafting of shape.Pass through bevel gear gear, thus it is possible to vary draw speed and then change person's handwriting weight, thickness, to reach It is required to mapping.By the fixed function of fixed screw and circular ring shape lariat loop, drafting pencil that can be different with unrestricted choice, into And increase the selection freedom of person's handwriting.By increasing being used cooperatively for resistance foot, pilot pin and spring, damage paper wind is reduced Danger, improves drafting stability.The utility model is particularly suitable for accurate drawing and draws.
Detailed description of the invention
Fig. 1 is the main sectional view of the variable-ratio machine driving compasses of the utility model one kind;
Fig. 2 is partial enlarged view at the A of Fig. 1;
Fig. 3 is partial enlarged view at the B of Fig. 1;
Fig. 4 is partial enlarged view at the C of Fig. 1;
Fig. 5 is partial enlarged view at the D of Fig. 1;
Fig. 6 is partial enlarged view at the E of Fig. 1;
Fig. 7 is partial enlarged view at the F of Fig. 1;
Fig. 8 is the vertical view installation diagram of the fixed device of drawing pen.
The names of the parts and label declaration are as follows in figure:
Upper section solid cylinder 1, upper section solid cylinder 22, bearing 1, briquetting 4, lower section solid cylinder 5, Cylindrical boss 6 increases resistance foot 7, is bearing 28, spring 9, pilot pin 10, transmission shaft 11, slave arm 12, drive bevel gear 13, small Bevel gear 14, axle sleeve 15, gag lever post 16, joystick 17, bearing hole 18, cylindrical drive rod 19, rectangular master arm 20, cylinder Shake handle 21, interior square shaft 22, outer square shaft 23, steel turn-buckle 24, circular ring shape lariat loop 25, square block 26, fixed screw 27.
Specific embodiment
In order to better understand the scheme of the utility model patent, in conjunction with attached drawing to the technical solution of the utility model make into The explanation of one step, however, it is not limited to this, all to be modified or replaced equivalently to technical solutions of the utility model, without de- From the spirit and scope of the technical scheme of the present invention, should all cover in the protection scope of the utility model.
Specific embodiment 1: as Figure 1-Figure 8, present embodiment discloses a kind of variable-ratio machine driving compasses, Its composition includes: upper section solid cylinder and lower section solid cylinder 5;The variable-ratio machine driving compasses further include transmission shaft 11, the fixed device of joystick 17, slave arm 12, bevel gear gear, drawing pen, flexibly positioned needle mechanism and two bearings one 3;The upper section solid cylinder includes upper section solid cylinder 1 and upper section solid cylinder 22;
Cylinder shape groove one is equipped in the middle part of one 1 lower end of upper section solid cylinder, in the upper section solid cylinder 22 Portion, which is from top to bottom equipped with, to be communicated and cylindrical hole one and cylindrical hole two that diameter successively decreases, one 1 lower end of upper section solid cylinder with 22 upper end of upper section solid cylinder is fixedly connected and (is preferably fixedly connected using welding manner), the cylinder shape groove one and circle Cylindrical hole one communicates, and the diameter of cylinder shape groove one is greater than the diameter of cylindrical hole one;
5 upper center of lower section solid cylinder, which is from top to bottom equipped with, to be communicated and cylindrical hole three that diameter successively decreases and circle Cylindrical groove two, the transmission shaft 11(transmission shaft 11 are round tube) equipped with cylindrical boss 6,11 lower end of transmission shaft passes through upper for lower end The cylindrical hole one and cylindrical hole two of section solid cylinder two and the cylindrical hole three of lower section solid cylinder 5 are arranged in circle In cylindrical groove two, 11 upper end of transmission shaft is arranged in the cylinder shape groove one of upper section solid cylinder 1 and becomes with bevel gear Fast mechanism is fixedly connected, and transmission shaft 11 is real by the bearing 1 and upper section being mounted in cylindrical hole one and cylindrical hole three Heart cylindrical body 22 and lower section solid cylinder 5 are rotatablely connected (to guarantee that 11 position of transmission shaft is fixed, but free to rotate), under Section solid cylinder is fixed with flexibly positioned needle mechanism in the middle part of lower end;
Described 17 one end of joystick turn through the side wall of the cylinder shape groove one of upper section solid cylinder 1 and with cone tooth Wheel gear is detachably connected;Described 12 one end of slave arm is fixedly connected with 6 outer wall vertical of cylindrical boss of transmission shaft 11 (spacing passed through for slave arm 12 is equipped between 5 upper end of 22 lower end of upper section solid cylinder and lower section solid cylinder), from 12 other end of swing arm is connect with the fixed device of drawing pen.
Specific embodiment 2: as shown in Figure 1 and Figure 2, present embodiment be specific embodiment one is made it is further Illustrate, the bevel gear gear include different 14, two axle sleeves 15 of bevel pinion of 13, two numbers of teeth of drive bevel gear and Two bearings 28;Two opposing sidewalls of the cylinder shape groove one of the upper section solid cylinder 1 are equipped with coaxial two Bearing hole 18 is mounted on bearing 28, the centre bore and transmission shaft 11 of the drive bevel gear 13 in each bearing hole 18 Upper end is fixedly connected, and the drive bevel gear 13 bevel pinion 14 different from the described two numbers of teeth being positioned above simultaneously is nibbled It closes, is respectively fixedly connected with 15 one end of axle sleeve in the middle part of a side end face of the different bevel pinion 14 of two numbers of teeth, it is described two Axle sleeve 15 is fixed in described two bearings 28, and one end described in the joystick 17 closely passes through one of axle sleeve 15 (another axle sleeve is closely passed through by one end described in joystick 17 with the centre bore grafting of corresponding one bevel pinion 14 15 with the centre bore grafting of another corresponding bevel pinion 14, achieve the purpose that speed change).
To make joystick 17 that bevel pinion 13 be driven to rotate synchronously, it is preferred that by the centre bore of two bevel pinions 13 It is processed into internal splined hole, one end outer wall described in joystick 17 is processed into the outer flower to match with the internal splined hole of bevel pinion 13 Key).
Specific embodiment 3: as shown in Figure 1 and Figure 2, present embodiment be specific embodiment two is made it is further Illustrate, the joystick 17 includes cylindrical drive rod 19, rectangular master arm 20 and cylindrical shake handle 21;The cylinder One end described in drive rod 19 closely passes through the center of another bearing 28 and axle sleeve 15 with corresponding one bevel pinion 14 Hole grafting (relative motion does not occur for the centre bore grafting of cylindrical drive rod 19 and bevel pinion, the two, but still detachable), circle The close grafting vertical with rectangular 20 one end of master arm of 19 other end of cylindricality drive rod, rectangular 20 other end of master arm and cylinder Shape shake handle 21 is vertically fixedly connected.
Preferably, one end outer wall described in cylindrical drive rod 19 is processed into the internal splined hole phase with bevel pinion 13 The external splines matched.
Specific embodiment 4: as shown in Figure 1, shown in Figure 5, present embodiment be specific embodiment one is made it is further Illustrate, the slave arm 12 includes interior square shaft 22, outer square shaft 23 and steel turn-buckle 24;The outer square shaft 23 and interior square shaft 22 are Solid square shaft, outer 23 one end of square shaft middle part are equipped with square groove, and interior square shaft 22 is by square shaft group in square shaft in small bore and big section At the matching of square shaft one end is inserted into the square groove of outer square shaft 23 in the small bore of interior square shaft 22, in the big section of interior square shaft 22 Square shaft one end is fixedly connected with 6 outer wall vertical of cylindrical boss of transmission shaft 11, is set on the side wall of the square groove of outer square shaft 23 There is threaded hole two, outer square shaft 23, which is fixedly connected with interior square shaft 22 by the steel turn-buckle 24 screwed in the threaded hole two, (to be passed through Interior square shaft 22 is tightly withstood on the top of steel turn-buckle 24, and the interior square shaft 22 of realization is fixedly connected with outer square shaft 23, unscrews flexible spiral shell Silk 24, the relative movement of realization interior square shaft 22 and outer square shaft 23), outer 23 other end of square shaft and the fixed company of the fixed device of drawing pen It connects.
Specific embodiment 5: as shown in Fig. 1, Fig. 8, present embodiment be specific embodiment four is made it is further Illustrate, the fixed device of the drawing pen includes circular ring shape lariat loop 25, square block 26 and fixed screw 27;The circular ring shape lasso trick Ring 25 is fixedly connected with the other end described in outer square shaft 23, and annular lariat loop 25 is equipped with a notch, and the indentation, there is fixed with one Square block 26,26 central horizontal of square block are equipped with threaded hole one, and fixed screw 27 is screwed in the threaded hole one, described solid Screw 27 is determined for holding out against the drawing pen (such as propelling pencil, pencil) penetrated in circular ring shape lariat loop 25.
By rotary fixing screw silk 27, the end of fixed screw 27 can be made tightly to withstand drawing pen, to realize annular The fixation of lariat loop 25 and drawing pen.
Specific embodiment 6: as shown in Figure 1, Figure 7 shows, present embodiment be specific embodiment one is made it is further Illustrate, the variable-ratio machine driving compasses further include increasing resistance foot 7, spring 9 and pilot pin 10;The increasing resistance foot 7 is cylinder, Increase and be fixedly connected in the middle part of resistance foot 7 and 5 lower end of lower section solid cylinder (increase resistance foot 7 outer diameter be less than lower section solid cylinder 5 outside Diameter), be equipped with cylindrical elongate groove in the middle part of 5 lower end of lower section solid cylinder, increase resistance foot 7 middle part be equipped with diameter with it is described The identical through-hole of cylindrical elongate groove, the spring 9 are arranged in cylindrical elongate groove, and 9 upper end of spring and cylinder Elongate grooves top end face is fixedly connected (preferably bonding way is fixedly connected), 9 lower end of spring and insertion increase resistance foot 7 through-hole and Pilot pin 10 in the cylindrical elongate groove of lower section solid cylinder 5 is fixedly connected with that (diameter of pilot pin 10 is slightly less than cylinder The diameter of shape elongate grooves), pilot pin 10 is exposed under 9 free state of spring outside increasing resistance foot 7.
Specific embodiment 7: as shown in Figure 1, present embodiment is made furtherly to specific embodiment six Bright, the increasing resistance foot 7 is made of rubber material.Conducive to the coefficient of friction for increasing compasses and paper.
Specific embodiment 8: as shown in Figure 1, present embodiment is made furtherly to specific embodiment six Bright, the cylindrical elongate groove of the lower section solid cylinder 5 and the through-hole diameter for increasing resistance foot 7 are 2mm, lower section solid cylinder The length of the cylindrical elongate groove of body 5 is 15mm.
Specific embodiment 9: as shown in Figure 1 and Figure 2, present embodiment be specific embodiment two is made it is further Illustrate, the variable-ratio machine driving compasses further include two gag lever posts 16;Described two gag lever posts 16 are vertically arranged and one end It is connect with one top end face of cylinder shape groove of upper section solid cylinder 1, two 16 other ends of gag lever post stick on described two (there is Micro-friction on 15 periphery of axle sleeve between gag lever post 16 and the axle sleeve 15 of bevel pinion 14, but do not influence its rotation).
Specific embodiment 10: as shown in Figure 1, present embodiment is made furtherly to specific embodiment one Bright, the variable-ratio machine driving compasses further include briquetting 4;One 1 upper end of upper section solid cylinder is fixed with briquetting 4 (for an oblate cylinder), the upper surface of the briquetting 4 are spherical inner concave (applying pressing force convenient for finger).
Application method: in use, by rectangular master arm 20 and the close grafting of cylindrical drive rod 19 (preferably joggle, i.e., just The lower part of the one side wall of shape master arm 20 is equipped with tongue-and-groove, and one end that cylindrical drive rod 19 is connected with rectangular master arm 20 is equipped with The tenon to match with the tongue-and-groove), and cylindrical drive rod 19 is made to pass through one of axle sleeve 15, with corresponding bevel pinion 14 connections.Steel turn-buckle 24 above slave arm 12 is rotated, separates it with the interior square shaft 22 of lower section, it then can be by outer square shaft 23 and the circular ring shape lariat loop 25 connected thereon etc. pull out together, thus the radius of circle drawn needed for adjusting.Installation pencil then needs The fixed screw 27 on circular ring shape lariat loop 25 is adjusted, 27 position of fixed screw is adjusted by rotation, keeps it close with pencil Contact, jointly fixes pencil with circular ring shape lariat loop 25.When the center of circle for the circle drawn needed for accurate selection, it is fixed to can be used Position needle 10, is allowed to precise positioning in the center point, slightly firmly vertical pressing briquetting 4,9 quilt of spring in lower section solid cylinder 5 Compression, pilot pin 10 is to be contracted in increasing resistance foot 7, at this point, by increasing resistance foot 7 and paper dominant touch, pilot pin 10 and paper Between active force very little, avoid pilot pin 10 destroy paper.When drafting, after reasonably adjusting pencil height and fixing, connect pencil Paper is touched, cylindrical shake handle 21 is then shaken, is allowed to that cylindrical drive rod 19 is driven to rotate, and then drive bevel pinion 14, drive bevel gear 13 and slave arm 12 rotate, such achievable mapping.Cylindrical drive rod 19 is extracted, is inserted into another In axle sleeve 15, to connect another different size of bevel pinion 14, such achievable speed change.

Claims (10)

1. a kind of variable-ratio machine driving compasses, composition includes: upper section solid cylinder and lower section solid cylinder (5);Its Be characterized in that: the variable-ratio machine driving compasses further include transmission shaft (11), joystick (17), slave arm (12), bevel gear The fixed device of gear, drawing pen, flexibly positioned needle mechanism and two bearings one (3);The upper section solid cylinder includes Upper section solid cylinder one (1) and upper section solid cylinder two (2);
Cylinder shape groove one is equipped in the middle part of upper section solid cylinder one (1) lower end, in the upper section solid cylinder two (2) Portion, which is from top to bottom equipped with, to be communicated and cylindrical hole one and cylindrical hole two that diameter successively decreases, upper section solid cylinder one (1) lower end It is fixedly connected with upper section solid cylinder two (2) upper end, the cylinder shape groove one is communicated with cylindrical hole one, and cylindrical recessed The diameter of slot one is greater than the diameter of cylindrical hole one;
Lower section solid cylinder (5) upper center, which is from top to bottom equipped with, to be communicated and cylindrical hole three and cylinder that diameter successively decreases Connected in star two, transmission shaft (11) lower end are equipped with cylindrical boss (6), and transmission shaft (11) lower end passes through upper section solid cylinder Two cylindrical hole one and cylindrical hole two and the cylindrical hole three of lower section solid cylinder (5) are arranged in cylinder shape groove two It is interior, transmission shaft (11) upper end be arranged upper section solid cylinder one (1) cylinder shape groove one in and with bevel gear gear It is fixedly connected, transmission shaft (11) is solid by the bearing one (3) and upper section being mounted in cylindrical hole one and cylindrical hole three Cylindrical body two (2) and lower section solid cylinder (5) rotation connection, the fixation of lower section solid cylinder (5) lower end middle part are flexible fixed Wei Zhen mechanism;
Described joystick (17) one end turn through the side wall of the cylinder shape groove one of upper section solid cylinder one (1) and with cone tooth Wheel gear is detachably connected;Described slave arm (12) one end and cylindrical boss (6) outer wall vertical of transmission shaft (11) are solid Fixed connection, slave arm (12) other end are connect with the fixed device of drawing pen.
2. a kind of variable-ratio machine driving compasses according to claim 1, it is characterised in that: the bevel gear gear Including the different bevel pinion (14) of drive bevel gear (13), two numbers of teeth, two axle sleeves (15) and two bearings two (8);Institute Two opposing sidewalls for stating the cylinder shape groove one of upper section solid cylinder one (1) are equipped with two coaxial bearing holes (18), Bearing two (8), centre bore and transmission shaft (11) of the drive bevel gear (13) are mounted in each bearing hole (18) Upper end is fixedly connected, the drive bevel gear (13) bevel pinion different from the described two numbers of teeth being positioned above simultaneously (14) it engages, respectively fixes and connect with axle sleeve (15) one end in the middle part of a side end face of the different bevel pinion (14) of two numbers of teeth It connects, described two axle sleeves (15) are fixed in described two bearings two (8), and the described one end of the joystick (17) is closely worn Cross the centre bore grafting of one of axle sleeve (15) with corresponding one bevel pinion (14).
3. a kind of variable-ratio machine driving compasses according to claim 2, it is characterised in that: the joystick (17) includes Cylindrical drive rod (19), rectangular master arm (20) and cylindrical shake handle (21);The cylinder drive rod (19) is described One end closely passes through another bearing two (8) and axle sleeve (15) and inserts with the centre bore of corresponding one bevel pinion (14) It connects, the close grafting vertical with rectangular master arm (20) one end of cylindrical drive rod (19) other end, the rectangular master arm (20) The other end is vertical with cylindrical shake handle (21) to be fixedly connected.
4. a kind of variable-ratio machine driving compasses according to claim 1, it is characterised in that: the slave arm (12) includes Interior square shaft (22), outer square shaft (23) and steel turn-buckle (24);The outer square shaft (23) and interior square shaft (22) are solid square shaft, outside Square groove is equipped in the middle part of square shaft (23) one end, interior square shaft (22) is made of square shaft in square shaft in small bore and big section, interior side The matching of square shaft one end is inserted into the square groove of outer square shaft (23) in the small bore of axis (22), and in the big section of interior square shaft (22) side Axis one end is fixedly connected with cylindrical boss (6) outer wall vertical of transmission shaft (11), the side wall of the square groove of outer square shaft (23) It is equipped with threaded hole two, outer square shaft (23) and interior square shaft (22) are fixed by the steel turn-buckle (24) screwed in the threaded hole two Connection, outer square shaft (23) other end are fixedly connected with the fixed device of drawing pen.
5. a kind of variable-ratio machine driving compasses according to claim 4, it is characterised in that: the fixed device of the drawing pen Including circular ring shape lariat loop (25), square block (26) and fixed screw (27);The circular ring shape lariat loop (25) and outer square shaft (23) other end is fixedly connected, and annular lariat loop (25) is equipped with a notch, and the indentation, there is fixed with a square block (26), square block (26) central horizontal is equipped with threaded hole one, screws in fixed screw (27) in the threaded hole one, described solid Screw (27) are determined for holding out against the drawing pen penetrated in circular ring shape lariat loop (25).
6. a kind of variable-ratio machine driving compasses according to claim 1, it is characterised in that: the flexibly positioned needle mechanism Including increasing resistance foot (7), spring (9) and pilot pin (10);Increasing resistance foot (7) is cylinder, increases resistance foot (7) and lower section filled circles It is fixedly connected in the middle part of cylinder (5) lower end, cylindrical elongate groove is equipped in the middle part of lower section solid cylinder (5) lower end, increase resistance The middle part of foot (7) is equipped with diameter through-hole identical with the cylindrical elongate groove, and the spring (9) is arranged in cylindrical elongate In groove, and spring (9) upper end is fixedly connected with cylindrical elongate groove top face, and spring (9) lower end and insertion increase resistance foot (7) Through-hole and lower section solid cylinder (5) cylindrical elongate groove in pilot pin (10) be fixedly connected, pilot pin (10) Expose under spring (9) free state and increases resistance foot (7) outside.
7. a kind of variable-ratio machine driving compasses according to claim 6, it is characterised in that: increasing resistance foot (7) is by rubber Glue material is made.
8. a kind of variable-ratio machine driving compasses according to claim 6, it is characterised in that: the lower section solid cylinder (5) through-hole diameter of cylindrical elongate groove and increasing resistance foot (7) is 2mm, the cylindrical elongate of lower section solid cylinder (5) The length of groove is 15mm.
9. a kind of variable-ratio machine driving compasses according to claim 2, it is characterised in that: the variable-ratio machine driving Compasses further include two gag lever posts (16);Described two gag lever posts (16) are vertically arranged and one end and upper section solid cylinder one (1) one top end face of cylinder shape groove connection, two gag lever post (16) other ends stick on described two axle sleeves (15) periphery On.
10. a kind of variable-ratio machine driving compasses according to claim 1, it is characterised in that: the variable-ratio machinery passes Dynamic compasses further include briquetting (4);Upper section solid cylinder one (1) upper end is fixed with briquetting (4), the briquetting (4) upper surface is spherical inner concave.
CN201821561848.1U 2018-09-25 2018-09-25 A kind of variable-ratio machine driving compasses Expired - Fee Related CN208930991U (en)

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Application Number Priority Date Filing Date Title
CN201821561848.1U CN208930991U (en) 2018-09-25 2018-09-25 A kind of variable-ratio machine driving compasses

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Application Number Priority Date Filing Date Title
CN201821561848.1U CN208930991U (en) 2018-09-25 2018-09-25 A kind of variable-ratio machine driving compasses

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109080338A (en) * 2018-09-25 2018-12-25 哈尔滨工业大学 A kind of variable-ratio machine driving compasses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109080338A (en) * 2018-09-25 2018-12-25 哈尔滨工业大学 A kind of variable-ratio machine driving compasses

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