CN203225052U - Combined quick-changing type transmission mechanism teaching aid - Google Patents

Combined quick-changing type transmission mechanism teaching aid Download PDF

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Publication number
CN203225052U
CN203225052U CN 201320248124 CN201320248124U CN203225052U CN 203225052 U CN203225052 U CN 203225052U CN 201320248124 CN201320248124 CN 201320248124 CN 201320248124 U CN201320248124 U CN 201320248124U CN 203225052 U CN203225052 U CN 203225052U
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CN
China
Prior art keywords
gear
teaching aid
output shaft
fixed panel
changing type
Prior art date
Application number
CN 201320248124
Other languages
Chinese (zh)
Inventor
张炳岭
马靖然
段红霞
张锁勤
王丽萍
张有为
Original Assignee
廊坊职业技术学院
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Publication date
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Priority to CN 201320248124 priority Critical patent/CN203225052U/en
Application granted granted Critical
Publication of CN203225052U publication Critical patent/CN203225052U/en

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Abstract

The utility model discloses a combined quick-changing type transmission mechanism teaching aid, and belongs to the field of education and teaching instruments or demonstration tools. The combined quick-changing type transmission mechanism teaching aid comprises a power platform and a transmission mechanism, the power platform comprises a vertically arranged fixed panel, the fixed panel is provided with a motor, a worm and gear assembly, a bevel gear assembly, a chain wheel and an output shaft, the warm and gear assembly is located right above the motor and is in belt connection with the motor, the worm and gear assembly is in shaft connection with the bevel gear assembly, the chain wheel and the bevel gear assembly are arranged relative to the fixed panel, the chain wheel and the bevel gear assembly are in shaft connection through the bevel gear, the chain wheel and the output shaft are connected through a chain, and the output shaft is connected with the transmission mechanism. The power platform of the combined quick-changing type transmission mechanism teaching aid includes belt transmission, worm and gear transmission, bevel gear transmission and chain transmission, demonstrations of different experiments of generating machining of a gear train, a crank connecting rod, a sliding block and a gear can be realized through different combinations, all experimental device can be dismounted and mounted quickly, and thus the combined quick-changing type transmission mechanism teaching aid facilitates mechanical transmission experiment teaching.

Description

Combination quick-changing type gear train teaching aid
Technical field
The utility model relates to a kind of teaching aid of gear train, belongs to education and instruction instrument or demonstration equipment field, especially a kind of combination quick-changing type gear train teaching aid.
Background technology
The basic task of kinematic train is that motion and the power of prime mover are passed to topworks in the machinery, common mechanical drive comprises band transmission, chain transmission, gear drive and worm drive, in order to make the student more intuitively understand characteristics, principle of work and the structure of these four kinds of transmissions commonly used, general use can be demonstrated the teaching aid of these four kinds of transmissions respectively in teaching, and separately the teaching aid of demonstration is not easy to the student and simultaneously all kinds of mechanical drive is watched and compared, and has also increased expense of instruction in addition.
By retrieval, application number a kind of mechanical drive comprehensive demonstration teaching aid that has been 201120263674.2 patent disclosure, this teaching aid comprises motor, frame, tape handler, chain-drive mechanism, gear drive and screw-drive mechanism, can make characteristics, principle of work and the structure of the transmission of student's more intuitive understanding band, chain transmission, gear drive and worm drive.This structure is combined into one several mechanical drive, must demonstrate simultaneously, and an independent experimental demonstration can not be realized, and the just demonstration of whole teaching aid, can not allow the student start to dismantle, to student's understanding study restriction to some extent.
The utility model content
The technical problems to be solved in the utility model provides a kind of combination quick-changing type gear train teaching aid, this teaching aid comprises band transmission, worm and gear transmission, Bevel Gear Drive and chain transmission, can realize the demonstration of different experiments such as gear train, crank connecting link and slide block and gear generating processing by various combination, each experimental provision quick release is installed, and is conducive to the mechanical drive experimental teaching.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of combination quick-changing type gear train teaching aid, it is characterized in that comprising power platform and gear train, described power platform comprises the fixed panel of vertical placement, fixed panel is provided with motor, the worm and gear assembly, bevel gear assembly, sprocket wheel and output shaft, described worm and gear assembly is positioned at directly over the motor, and be connected with motor belt, the worm and gear assembly is connected with the bevel gear assembly axle, sprocket wheel and bevel gear assembly are with respect to the fixed panel setting, be connected by chain between sprocket wheel and the bevel gear assembly, be coaxial setting between sprocket wheel and the output shaft, output shaft is fixedlyed connected with gear train, and is provided with corresponding gear train Fast Installation hole at fixed panel.
Said structure is described further, and described gear train is gear drive or eccentric shoe mechanism or toggle or gear generating system of processing.
Said structure is described further, described gear generating system of processing comprises changes base gear and gear, described commentaries on classics base gear and gear are meshing with each other, changeing the base gear fixedlys connected with output shaft, gear is fixed on the fixed panel by central gear axis, the top of changeing the base gear is provided with wheel blank with one heart, and the top of gear is provided with pinion cutter with one heart, the small machine coaxial cooperation of pinion cutter and its top.
Said structure is described further, described eccentric shoe mechanism comprises slide block connecting rod and the slide block hinged with slide block connecting rod one end, the other end of slide block connecting rod is socketed on the eccentric wheel, eccentric wheel is fixedlyed connected with output shaft, described slide block places in the slideway of slide block set, and slide block set is fixed on the fixed panel.
Said structure is described further, and described toggle comprises rocking bar, small rod and crank, and crank one end is connected with output shaft, and the other end is hinged by small rod and rocking bar, and the other end and the fixed panel of rocking bar are hinged.
Said structure is described further, described gear drive comprises bull gear, joint wheel and central gear, center and the output shaft of central gear are fixed, the outer ring of bull gear is by four uniform bearings, and bull gear arranges with central gear is concentric, joint wheel and the interior engagement of bull gear, joint wheel and central gear external toothing, the central shaft that saves wheel is connected with output shaft by driving stem.
Said structure is described further, and the chain between described sprocket wheel and the bevel gear assembly is provided with tensioning system.
Said structure is described further, and described tensioning system comprises the support bar hinged with fixed panel, and an end of support bar is provided with chain and cooperates minor sprocket, and the support bar middle part is provided with adjuster bar.
Said structure is described further, and the upper end of described fixed panel is provided with touch-screen and nameplate.
The beneficial effect that adopts technique scheme to produce is: the utility model mainly is made up of power platform and gear train two parts, wherein comprise the band transmission on the power platform, the worm and gear transmission, four kinds of kinds of drive of Bevel Gear Drive and chain transmission, in chaindriven final stage output shaft is arranged, after power source (motor) slows down by above-mentioned quadruplet mechanism, power is passed to other mechanisms by output shaft, in order to finish the dynamic demonstration of other mechanisms, can make the characteristics of the above-mentioned four kinds of kinds of drive of student's more intuitive understanding, principle of work and structure, and its relative merits of comparison, thereby grasp the ABC of mechanical drive design, rationally draft Mechanical Drive Type; Gear train can in gear drive or eccentric shoe mechanism or toggle or the gear generating system of processing any one or a few, driven by power platform, realize accessory assembling and the demonstration of four kinds of common mechanisms, can be taken action on one's own by the student, operate at output shaft and position, Fast Installation hole, realize Fast Installation and the dismounting of each kinematic train, the utility model is operated demonstration and transmission demonstration, makes the student understand the gear train operation logic more in depth.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation in the utility model medium power platform front;
Fig. 2 is the structural representation at the utility model medium power platform back side;
Fig. 3 is the structural representation that the gear generating system of processing is installed on the power platform;
Fig. 4 is A-A cut-open view among Fig. 3;
Fig. 5 is the structural representation of mounting teeth wheel drive mechanism and eccentric shoe mechanism on the power platform;
Fig. 6 is the structural representation of mounting teeth wheel drive mechanism on the power platform;
Wherein: 1, fixed panel, 2, output shaft, 3, touch-screen, 4, nameplate, 5, the worm and gear assembly, 6, bevel gear assembly, 7, motor, 8, tensioning system, 9, sprocket wheel;
1-1, commentaries on classics base gear, 1-2, wheel blank, 1-3, long bolt, 1-4, nut, 1-5, pinion cutter, 1-6, small machine, 1-7, inner sliding sleeve, 1-8, register pin, 1-9, gear;
2-1, rocking bar, 2-2, small rod, 2-3, crank, 2-4, slide block connecting rod, 2-5, slide block set, 2-6, slide block, 2-7, eccentric wheel;
3-1, bull gear, 3-2, joint wheel, 3-3, central gear, 3-4, driving stem.
Embodiment
With reference to the accompanying drawings as can be known, the utility model is specifically related to a kind of combination quick-changing type gear train teaching aid, belongs to education and instruction instrument or demonstration equipment field.This teaching aid comprises power platform and gear train, in attached Fig. 1 and 2 as can be seen, power platform comprises the fixed panel 1 of vertical placement, fixed panel 1 is provided with motor 7, worm and gear assembly 5, bevel gear assembly 6, sprocket wheel 9 and output shaft 2, worm and gear assembly 5 is positioned at directly over the motor 7, and be connected with motor 7 belts, worm and gear assembly 5 is connected with 6 of bevel gear assemblies, sprocket wheel 9 arranges with respect to fixed panel 1 with bevel gear assembly 6, be connected by chain between sprocket wheel 9 and the bevel gear assembly 6, be coaxial setting between sprocket wheel 9 and the output shaft 2, output shaft 2 is fixedlyed connected with gear train, and is provided with corresponding gear train Fast Installation hole at fixed panel 1.
In addition, the chain between sprocket wheel 9 and bevel gear assembly 6 is provided with tensioning system 8.Wherein tensioning system 8 comprises the support bar hinged with fixed panel 1, and an end of support bar is provided with chain and cooperates minor sprocket, and the support bar middle part is provided with adjuster bar, adjuster bar is that bolt and nut cooperates, spur support bar by rotating nut, make the minor sprocket support chains, realize chain tension.
Combination between the above-mentioned part, formed the quadruplet gear train, respectively be band transmission, worm and gear transmission, Bevel Gear Drive and chain transmission, in chaindriven final stage output shaft 2 is arranged, motor 7 is power source, after slowing down by above-mentioned quadruplet mechanism, power is passed to other mechanisms by output shaft 2, in order to finish the dynamic demonstration of other mechanisms.Quadruplet mechanism on the power platform all is fixed by bolts on the fixed panel 1, is the quick-changing type structure, when carrying out the unit explanation, can take off appropriate section and cooperate textbook content to explain.
The basic step that power platform is installed should be " first portion dress; back general assembly ", namely before assembling, should earlier each part and standard component be combined into parts, as worm screw and driven pulley, worm gear and bevel pinion, bevel gear wheel and minor sprocket etc., and then each dress is installed on the fixed panel 1 with bolt.After each parts installs, adjust belt wheel strainer and sprocket wheel strainer again, make it reach job requirement.
Gear train in the utility model is gear drive or eccentric shoe mechanism or toggle or gear generating system of processing, the gear train of installing can for above-mentioned one or more, composition and the mounting means to each mechanism carries out simple declaration below.
One, the gear generating system of processing is shown in accompanying drawing 3 and 4, it specifically comprises changes base gear 1-1 and gear 1-9, changeing base gear 1-1 and gear 1-9 is meshing with each other, changeing base gear 1-1 fixedlys connected with output shaft 2, gear 1-9 is fixed on the fixed panel 1 by central gear axis, the top of changeing base gear 1-1 is provided with wheel blank 1-2 with one heart, and the top of gear 1-9 is provided with pinion cutter 1-5 with one heart, the small machine 1-6 coaxial cooperation of pinion cutter 1-5 and its top.
The installing/dismounting process is as follows:
The first step is installed earlier and changeed base gear 1-1 and wheel blank 1-2, will change base gear 1-1 through on the output shaft, and is with long bolt 1-3 that it is fastening, and wheel blank 1-2 is contained in changes on the base gear again, and with nut 1-4 it is pushed down.
In second step, the gear shaping head part is installed, on the fixed panel 1 before the installation, earlier the gear shaping head part is dressed up external member, step is as follows: earlier bearing is contained on the central shaft, with shaft end ring bearing inner race is blocked, again bearing is installed on the gear 1-9, and with jump ring the outer ring of bearing is blocked; Screw rod installed to that small machine 1-6 goes up and push down with puller bolt, inner sliding sleeve 1-7 is contained on the screw rod, regulate its position, make its apart from the distance of small machine 1-6 front end greatly about about 40mm; Pinion cutter 1-5 is contained on the sleeve cylindrical of gear 1-9, sliding sleeve on the motor is packed in the sleeve endoporus of gear 1-9, sliding sleeve will align the screw hole on its side and the pinhole on the pinion cutter before packing into, after inner sliding sleeve is packed into, in the screw hole with register pin 1-8 insertion and precession inner sliding sleeve, with screw motor 1-6 is fixed on the barrel forward end of gear 1-9, so far, gear shaping headgear spare installs.
Whole gear shaping headgear spare is packed in the hole on the fixed panel, and fastening with nut in its back, installation process finishes.
During dismounting, no specific (special) requirements, the gear shaping head part tries not to decompose, but it is done as a whole, and the nut of back is unloaded, and whole gear shaping head is taken off get final product.When commentaries on classics base gear 1-1 partly dismantles, back out nut 1-4, take off wheel blank 1-2, and then long bolt 1-3 is backed out, will change base gear 1-1 and take off, unloading process finishes.
Two, the structure of eccentric shoe mechanism and toggle and mounting means are as follows:
See shown in the accompanying drawing 5, the utility model is installed on eccentric shoe mechanism and toggle on the power platform jointly, wherein eccentric shoe mechanism comprises slide block connecting rod 2-4 and the slide block 2-6 hinged with slide block connecting rod 2-4 one end, the other end of slide block connecting rod 2-4 is socketed on the eccentric wheel 2-7, eccentric wheel 2-7 is fixedlyed connected with output shaft 2, slide block 2-6 places in the slideway of slide block set 2-5, and slide block set 2-5 is fixed on the fixed panel 1.Toggle comprises rocking bar 2-1, small rod 2-2 and crank 2-3, and crank 2-3 one end is connected with output shaft 2, and the other end is hinged by small rod 2-2 and rocking bar 2-1, and the other end of rocking bar 2-1 and fixed panel 1 are hinged.
Concrete mounting means: earlier toggle and eccentric shoe mechanism are assembled into external member respectively, and the slide block 2-6 in the eccentric wheel sliding block mechanism is packed among the slide block set 2-5.During installation, the first step is wanted earlier eccentric wheel sliding block mechanism to be installed on the output shaft 2, and slide block set is packed in the groove on the fixed panel 1, and there is threaded hole slide block 2-6 cover back, mixes up the position of slide block set 2-5, uses bolt and pressing plate that slide block set 2-5 is fastening then; Second step refilled toggle, and the borehole jack on the crank 2-3 on output shaft 2, is penetrated the axle on the rocking bar 2-1 in the hole on the fixed panel 1 and can finish installation.Eccentric wheel 2-7 is in the lining, and crank 2-3 outside.
During dismounting, pull out the axle on the rocking bar 2-1 earlier, crank connecting link partly can be unloaded; The bolt of slide block set 2-5 back is unclamped, take away pressing plate, eccentric wheel sliding block partly can be taken off.
Three, at accompanying drawing 6 as can be seen, gear drive comprises bull gear 3-1, joint wheel 3-2 and central gear 3-3, the center of central gear 3-3 and output shaft 2 are fixing, the outer ring of bull gear 3-1 is by four uniform bearings, and bull gear 3-1 arranges with central gear 3-3 is concentric, engagement in joint wheel 3-2 and the bull gear 3-1, joint wheel 3-2 and central gear 3-3 external toothing, the central shaft of joint wheel 3-2 is connected with output shaft 2 by driving stem 3-4.
The gear drive installation process is as follows: the first, and mounting center gear 3-3 takes off the jump ring on the output shaft 2 earlier, and central gear 3-3 is contained on the output shaft 2.Second, bull gear 3-1 is installed, earlier scalable register pin is extracted, bull gear 3-1 is placed on two following bearings, the groove on the bull gear will align with the outer ring of bearing, again top two bearings is slided the top of pushing down bull gear, and top two bearings is fastening, guarantee that bull gear goes slick, then scalable register pin is released, make its pinning bull gear 3-1, do not allow bull gear rotate.The 3rd, joint wheel 3-2 is installed, the spindle nose of envoy's wheel is outside.The 4th, tie-rod holder and the tie-rod of train are installed, with bolt that holder is fastening, with wing nut that tie-rod is fastening with the joint wheel shaft, so just constituted planet circular system.
If tie-rod is partly laid down, the joint wheel shaft is turned around to penetrate hole on the fixed panel, will save wheel shaft with wing nut again and fix, so just be transformed into fixed shaft gear train.Note, scalable register pin be extracted.
During dismounting, tear joint wheel part earlier open, tear central gear 3-3 and bull gear 3-1 again open.Central gear 3-3 can directly take off, and when tearing bull gear 3-1 open, earlier two top bearings is unclamped and passing upward, can take off bull gear 3-1 then.
The utility model adopts Programmable Logic Controller to control motor 7 and small machine 1-6, two motors are stepper motor, motor will be turned round with command speed, use man-machine interface to operate, therefore being provided with touch-screen 3 in the upper end of fixed panel 1 realizes automatic control.The cycle control that control system rotates and reverse motor 7.The pinion cutter 1-5 of control small machine 1-6 carries out position control.Before starting small machine, must in manual mode, utilize adjusting control button that pinion cutter 1-5 is placed left position (namely near operator's one end).After touching start button, under the driving of small machine, pinion cutter carries out left and right sides shuttling movement, simulates the gear shaping process.
In the utility model, on the output shaft of power platform except above-mentioned four kinds of mechanism's accessories are installed, also other mechanisms can be installed, as cam mechanism, indexing mechanism etc., and finish their dynamic demonstration on request, so the power platform in the utility model can expand in other drive experiments study.

Claims (9)

1. one kind is made up quick-changing type gear train teaching aid, it is characterized in that comprising power platform and gear train, described power platform comprises the fixed panel (1) of vertical placement, fixed panel (1) is provided with motor (7), worm and gear assembly (5), bevel gear assembly (6), sprocket wheel (9) and output shaft (2), described worm and gear assembly (5) is positioned at directly over the motor (7), and be connected with motor (7) belt, worm and gear assembly (5) is connected with bevel gear assembly (6) axle, sprocket wheel (9) arranges with respect to fixed panel (1) with bevel gear assembly (6), be connected by chain between sprocket wheel (9) and the bevel gear assembly (6), be coaxial setting between sprocket wheel (9) and the output shaft (2), output shaft (2) is fixedlyed connected with gear train, and is provided with corresponding gear train Fast Installation hole at fixed panel (1).
2. combination quick-changing type gear train teaching aid according to claim 1 is characterized in that described gear train is gear drive or eccentric shoe mechanism or toggle or gear generating system of processing.
3. combination quick-changing type gear train teaching aid according to claim 2, it is characterized in that described gear generating system of processing comprises commentaries on classics base gear (1-1) and gear (1-9), described commentaries on classics base gear (1-1) and gear (1-9) are meshing with each other, changeing base gear (1-1) fixedlys connected with output shaft (2), gear (1-9) is fixed on the fixed panel (1) by central gear axis, the top of changeing base gear (1-1) is provided with wheel blank (1-2) with one heart, the top of gear (1-9) is provided with pinion cutter (1-5) with one heart, small machine (1-6) coaxial cooperation of pinion cutter (1-5) and its top.
4. combination quick-changing type gear train teaching aid according to claim 2, it is characterized in that described eccentric shoe mechanism comprises slide block connecting rod (2-4) and the slide block (2-6) hinged with slide block connecting rod (2-4) end, the other end of slide block connecting rod (2-4) is socketed on the eccentric wheel (2-7), eccentric wheel (2-7) is fixedlyed connected with output shaft (2), described slide block (2-6) places in the slideway of slide block set (2-5), and slide block set (2-5) is fixed on the fixed panel (1).
5. combination quick-changing type gear train teaching aid according to claim 2, it is characterized in that described toggle comprises rocking bar (2-1), small rod (2-2) and crank (2-3), crank (2-3) end is connected with output shaft (2), the other end is hinged by small rod (2-2) and rocking bar (2-1), and the other end of rocking bar (2-1) and fixed panel (1) are hinged.
6. combination quick-changing type gear train teaching aid according to claim 2, it is characterized in that described gear drive comprises bull gear (3-1), joint wheel (3-2) and central gear (3-3), the center of central gear (3-3) and output shaft (2) are fixing, the outer ring of bull gear (3-1) is by four uniform bearings, and bull gear (3-1) and the concentric setting of central gear (3-3), joint wheel (3-2) and the interior engagement of bull gear (3-1), joint wheel (3-2) and central gear (3-3) external toothing, the central shaft of joint wheel (3-2) is connected with output shaft (2) by driving stem (3-4).
7. combination quick-changing type gear train teaching aid according to claim 1 is characterized in that the chain between described sprocket wheel (9) and the bevel gear assembly (6) is provided with tensioning system (8).
8. combination quick-changing type gear train teaching aid according to claim 7 is characterized in that described tensioning system (8) comprises the support bar hinged with fixed panel (1), and an end of support bar is provided with chain and cooperates minor sprocket, and the support bar middle part is provided with adjuster bar.
9. combination quick-changing type gear train teaching aid according to claim 1 is characterized in that the upper end of described fixed panel (1) is provided with touch-screen (3) and nameplate (4).
CN 201320248124 2013-05-09 2013-05-09 Combined quick-changing type transmission mechanism teaching aid CN203225052U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103247218A (en) * 2013-05-09 2013-08-14 廊坊职业技术学院 Combined quick-changing type transmission mechanism teaching aid
CN103886803A (en) * 2014-04-17 2014-06-25 重庆交通大学 Integrated mechanical teaching aid
CN104008692A (en) * 2014-04-22 2014-08-27 江汉大学 Gear training aid
CN104050866A (en) * 2014-06-29 2014-09-17 廖玉松 Mechanical transmission demonstration platform
CN104200708A (en) * 2014-09-04 2014-12-10 南昌大学 Inversion method simulation and pressure angle analysis software platform
CN105654835A (en) * 2014-06-29 2016-06-08 廖玉松 Mechanical transmission demonstration bench
CN105741668A (en) * 2016-03-03 2016-07-06 辽宁科技大学 Demonstration model for pressing mechanism of two-roll rolling machine
CN107301813A (en) * 2017-07-31 2017-10-27 张志通 A kind of mechanical many sliceable apparatus for demonstrating of driven type

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103247218A (en) * 2013-05-09 2013-08-14 廊坊职业技术学院 Combined quick-changing type transmission mechanism teaching aid
CN103247218B (en) * 2013-05-09 2015-08-12 廊坊职业技术学院 Combination quick-changing type gear train teaching aid
CN103886803A (en) * 2014-04-17 2014-06-25 重庆交通大学 Integrated mechanical teaching aid
CN103886803B (en) * 2014-04-17 2016-02-03 重庆交通大学 Integrated mechanical teaching aid
CN104008692A (en) * 2014-04-22 2014-08-27 江汉大学 Gear training aid
CN104008692B (en) * 2014-04-22 2017-01-04 江汉大学 A kind of gear teaching aid
CN105654835A (en) * 2014-06-29 2016-06-08 廖玉松 Mechanical transmission demonstration bench
CN104050866A (en) * 2014-06-29 2014-09-17 廖玉松 Mechanical transmission demonstration platform
CN105654835B (en) * 2014-06-29 2018-01-26 滁州职业技术学院 A kind of machine driving Demonstration table
CN104200708A (en) * 2014-09-04 2014-12-10 南昌大学 Inversion method simulation and pressure angle analysis software platform
CN105741668A (en) * 2016-03-03 2016-07-06 辽宁科技大学 Demonstration model for pressing mechanism of two-roll rolling machine
CN107301813A (en) * 2017-07-31 2017-10-27 张志通 A kind of mechanical many sliceable apparatus for demonstrating of driven type

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Granted publication date: 20131002

Termination date: 20140509