CN208861579U - Manual gear of vehicle practical training teaching aid - Google Patents

Abstract

The utility model describes a kind of manual gear of vehicle practical training teaching aid, it includes pedestal, first support is vertically provided on pedestal, second support and third bracket, dc motor is installed in first support, in the rear end of dc motor, positive negative terminal is set, the output shaft of dc motor is connected after being horizontally through first support with the input terminal of planetary reduction gear, the output end of planetary reduction gear is connected with driving shaft, it is rotatably installed on the secondary support bracket by the first ball bearing one end of driving shaft, the other end of driving shaft is connected on third bracket by the second ball bearing；It is cased with gear hub on driving shaft, is cased with the first needle bearing and the second needle bearing respectively on the driving shaft at gear hub both ends, three gear driving gears are cased on the first needle bearing, four gear driving gears are cased on the second needle bearing.The utility model can dynamically show manual transmission working condition, and easy to operate, and overall volume is also smaller.

Description

Manual gear of vehicle practical training teaching aid

Technical field

The utility model relates to the ancillary equipment of automotive practical-training teaching, especially a kind of manual gear of vehicle real training religion Tool, belongs to Special teaching appliance technology.

Background technique

Speed changer is one of most important mechanism on automobile, and now current automotive transmission is divided into automatic transmission and becomes manually Fast device, although the popularity of automatic transmission is higher and higher, manual transmission is still the important option of a variety of models. Especially in the teaching of automobile colleges and universities, it is to learn that the teaching for speed changer, which is also based on manual transmission, The knowledge of raw necessary to master of geting started.But now at present when carrying out the teaching process of automotive transmission on classroom, usually first Theory explaination is carried out, it is in kind then to arrive real training field observation again.This teaching method is there are certain deficiency, and student is on classroom By picture formal similarity, it can not combine quickly with material object, the explanation exactly on classroom of tracing it to its cause lacks needle It is not in place for theoretical research to the teaching aid of property, cause subsequent teaching result bad, only static theoretical It practises, still has certain influence for the raising of learning efficiency.

Utility model content

For above-mentioned deficiency in the prior art, the main purpose of the utility model is that solving existing at present in progress speed change When device is imparted knowledge to students, lack the teaching aid of Dynamic Display, the problem for causing student's learning efficiency not high, and providing one kind being capable of dynamic It shows the working principle of manual transmission, student's fast understanding is helped to grasp the manual gear of vehicle real training religion of knowledge architecture Tool.

The technical solution of the utility model includes: manual gear of vehicle practical training teaching aid, which is characterized in that including pedestal, the bottom of at It is vertically provided with first support, second support and third bracket on seat, dc motor is installed in the first support, The rear end of dc motor is arranged positive negative terminal, and the output shaft of the dc motor is horizontally through after first support and planet The input terminal of retarder is connected, and the planetary reduction gear is mounted in first support, the output end of the planetary reduction gear and master Moving axis is connected, and one end of the driving shaft is rotatably installed on the secondary support bracket by the first ball bearing, driving shaft it is another One end is connected on third bracket by the second ball bearing；Gear hub, the gear hub and master are cased on the driving shaft Moving axis is connected by spline, is cased with the first needle bearing and the second needle bearing respectively on the driving shaft at gear hub both ends, It is cased with three gear driving gears on first needle bearing, four gear driving gears are cased on the second needle bearing；In the gear hub On be cased with axially slidable combined cover, the three gear driving gears engages with three gear driven gears, and described four keep off active Gear is engaged with four gear driven gears, and the three gear driven gear and four gear driven gears cover on driven shaft, three gear Driven gear and four gear driven gears are connect with driven shaft spline；One end of the driven shaft passes through third ball bearing and the The other end of the connection of two brackets, driven shaft is connected by the 4th ball bearing with third bracket.

The practical training teaching aid of the utility model is specific to automobile teaching and designs, it based on teaching, with Based on component on automobile, simplify in conjunction with working principle, improve, achieve the effect that displaying and teaching.The utility model Practical training teaching aid be not completely constant design speed changer model, it has oneself unique structure, and uses more square Just, bracket and pedestal is made conducive to transparent material in intuitive way, easily facilitates observation of students in this way and understands internal junction Structure, it is compared to traditional model structure, and entirety is more intuitively, conveniently.

Optimally, the dc motor is 6V dc motor.Here on the one hand using the motor of specific voltage It can satisfy use demand, be on the other hand also beneficial to realize the miniaturized structure demand of teaching aid.

Optimally, the pedestal, first support, second support and third bracket are that transparent plastics material is made.It adopts Work shape is more directly understood with the internal structure of the transparent more convenient observation of students teaching aid of material convenient for discharge interference State.

Optimally, the diameter of the four gears driving gear is greater than the diameter of three gear driving gears.

Compared with the existing technology, the utility model has the following beneficial effects:

1, the utility model uses the design of transparent rack, and true speed changer structure is cooperated to be opened up on this basis Show, the connection relationship of static all parts can not only be observed, moreover it is possible to dynamically show its working condition, have very intuitive Effect, it is and especially clear for the displaying of gear, additionally it is possible to which that solving cannot be complete as caused by the limitation of space on real vehicle The problem of orientation is shown.

2, appropriate revolving speed control is devised, the utility model can be realized reduction of speed torque increase using the decelerating motor of simulation, Facilitate the operating status for closely learning speed changer, there is simulation effect well.

3, easy to operate, overall volume is smaller, and easy to carry and placement has preferable practical value.

Detailed description of the invention

Fig. 1 is the main view of the utility model manual gear of vehicle practical training teaching aid.

Fig. 2 is the top view of Fig. 1.

In figure, 1-pedestal, 2-first supports, 3-second supports, 4-third brackets, 5-dc motors, 6-just Negative terminal, 7-planetary reduction gears, 8-driving shafts, the 9-the first ball bearing, the 10-the second ball bearing, 11-gear hubs, 12-the first needle bearing, the 13-the second needle bearing, 14-three gear driving gears, 15-four gear driving gears, 16-combine Set, 17-three gear driven gears, 18-four gear driven gears, 19-driven shafts, 20-third ball bearings, the 21-the four ball Bearing.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

As depicted in figs. 1 and 2, the manual gear of vehicle practical training teaching aid of the utility model, including pedestal 1, on pedestal 1 It is vertically provided with first support 2, second support 3 and third bracket 4, dc motor 5 is installed in the first support 2, Positive negative terminal 6 is set in the rear end of dc motor 5, after the output shaft of the dc motor 5 is horizontally through first support 2 It is connected with the input terminal of planetary reduction gear 7, the planetary reduction gear 7 is mounted in first support 2, the planetary reduction gear 7 Output end is connected with driving shaft 8, and one end of the driving shaft 8 is rotatably mounted on second support 3 by the first ball bearing 9 On, the other end of driving shaft 8 is connected on third bracket 4 by the second ball bearing 10；Gear is cased on the driving shaft 8 Hub 11, the gear hub 11 are connect with driving shaft 8 by spline, are cased with first respectively on the driving shaft 8 at 11 both ends of gear hub Needle bearing 12 and the second needle bearing 13, are cased with three gear driving gears 14 on the first needle bearing 12, in the second needle roller axis It holds and is cased with four gear driving gears 15 on 13；Axially slidable combined cover 16, three gears are cased on the gear hub 11 Driving gear 14 is engaged with three gear driven gears 17, and the four gear driving gears 15 are engaged with four gear driven gears 18, described Three gear driven gears 17 and four gear driven gears 18 cover on driven shaft 19, the three gear driven gear 17 and four gear driven tooths Wheel 18 is connect with 19 spline of driven shaft；One end of the driven shaft 19 is connect by third ball bearing 20 with second support 3, The other end of driven shaft 19 is connected by the 4th ball bearing 21 with third bracket 4.

Referring to Fig. 1 and Fig. 2, in the utility model, the dc motor 5 is 6V dc motor.The pedestal 1, first support 2, second support 3 and third bracket 4 are that transparent plastics material is made.The diameter of the four gears driving gear 15 Greater than the diameter of three gear driving gears 14.

Working principle: referring to Fig. 1 and Fig. 2, when operation, external power supply being linked on positive negative terminal 6, closure switch, Dc motor 5 starts turning；Dc motor 5 drives planetary reduction gear 7 to rotate, and planetary reduction gear 7 realizes existing torque Deceleration torque increase, is driven by axis, so that the driving shaft 8 of the first ball bearing 9 support starts uniform speed slow rotation；Due to gear hub 11 are assembled in the form of spline with driving shaft 8, therefore the uniform rotation together with driving shaft of gear hub 11, and three gear 14 Hes of driving gear Four gear driving gears 15 are due to being empty set on driving shaft 8, and three gear driving gears 14 and four gear driving gears 15 are at this time Stationary；At this point, manual operation combined cover 16 slides to the right, so that gear hub 11 is combined with three gear driving gears 14, tooth Wheel hub 11 and the circumferential speed of three gear driving gears 14 are synchronous rapidly, and such three gears driving gear 14 is provided with torque；And due to Three gear driving gears 14 and three gear driven gears 17 are to be in normal meshing state, therefore three gear driving gears 14 drive three gears driven Gear 17 rotates, and three gear driven gears 17 and driven shaft 19 are also spline fitted, so that driven shaft 19 is provided with torque, Then outside output torque.When needing to realize four gear power outputs, combined cover 11 need to only be slided to the left and four gear driving tooths Wheel 15 combines, other operations are identical.

The manual gear of vehicle practical training teaching aid of the utility model is easy to operate, and observation is intuitive, has displaying well, religion Effect is learned, the learning efficiency for improving student is conducive to.

It should be noted that above embodiments are only to illustrate technical solutions of the utility model rather than restriction technologies scheme, Although applicant is explained in detail the utility model referring to preferred embodiment, those skilled in the art should be managed Solution, those to technical solutions of the utility model carry out modification or equivalent replacement, cannot be detached from the technical program objective and Range should all cover in the utility model claims range.

Claims (4)

1. manual gear of vehicle practical training teaching aid, which is characterized in that including pedestal (1), be vertically provided with first on pedestal (1) Bracket (2), second support (3) and third bracket (4), are equipped with dc motor (5), straight on the first support (2) Positive negative terminal (6) is arranged in the rear end of galvanic electricity motivation (5), and the output shaft of the dc motor (5) is horizontally through first support (2) it is connected afterwards with the input terminal of planetary reduction gear (7), the planetary reduction gear (7) is mounted on first support (2), the row The output end of star retarder (7) is connected with driving shaft (8), and one end of the driving shaft (8) can be turned by the first ball bearing (9) Dynamic is mounted on second support (3), and the other end of driving shaft (8) is connected to third bracket by the second ball bearing (10) (4) on；It being cased on the driving shaft (8) gear hub (11), the gear hub (11) is connect with driving shaft (8) by spline, It is cased with the first needle bearing (12) and the second needle bearing (13) respectively on the driving shaft (8) at gear hub (11) both ends, It is cased with three gear driving gears (14) on one needle bearing (12), four gear driving gears are cased on the second needle bearing (13) (15)；It is cased on the gear hub (11) axially slidable combined cover (16), three gears driving gear (14) and three Driven gear (17) engagement is kept off, four gears driving gear (15) are engaged with four gears driven gear (18), and three gear is driven Gear (17) and four gears driven gear (18) cover on driven shaft (19), three gear driven gear (17) and four gear driven tooths Wheel (18) is connect with driven shaft (19) spline；One end of the driven shaft (19) passes through third ball bearing (20) and second The other end of frame (3) connection, driven shaft (19) is connected by the 4th ball bearing (21) with third bracket (4).

2. manual gear of vehicle practical training teaching aid according to claim 1, which is characterized in that the dc motor It (5) is 6V dc motor.

3. manual gear of vehicle practical training teaching aid according to claim 2, which is characterized in that the pedestal (1), first Bracket (2), second support (3) and third bracket (4) are that transparent plastics material is made.

4. manual gear of vehicle practical training teaching aid according to claim 3, which is characterized in that the four gears driving gear (15) diameter is greater than the diameter of three gears driving gear (14).