CN208737763U - A kind of mechanical design course combined appliance for teaching - Google Patents

Abstract

The utility model discloses a kind of mechanical design course combined appliance for teaching, its structure includes pedestal, gearbox, electric pushrod and head-shaking device, the base top is fixedly connected with support frame bottom, it is fixedly connected at the top of support frame as described above with bottom of upright rod, the upright bar middle-end is connect with support base screw, it is connect on the left of the support base with fixed frame screw, the fixed frame is fixedly connected with first motor, the first motor and clutch pass through motor axis connection, gearbox is equipped on the right side of the clutch, the gearbox includes jackshaft, electric pushrod is equipped on the right side of the gearbox, the electric pushrod includes lead screw, the support base bottom right side is fixedly connected with control panel, the upright bar top left side is equipped with head-shaking device.The mechanical design course combined appliance for teaching, gearbox demonstrate gear engagement and transmission principle, and electric pushrod demonstration lead screw transmission and flexible rod principle, head-shaking device can be improved the field of view of demonstration, facilitate the comprehensive observation of student.

Description

A kind of mechanical design course combined appliance for teaching

Technical field

The utility model relates to teaching aid technical field, specially a kind of mechanical design course combined appliance for teaching.

Background technique

Machine Design is mechanical important component, be according to requirements to mechanical working principle, structure, Motion mode, the transfer mode of power and energy, the material and shape size of each part, lubricating method etc. are conceived, are analyzed It is specifically described using the course of work as manufacture foundation with calculating and being translated into, and teaching aid is the use of teacher's aided education Tool uses teaching aid in due course in course, can effectively improve quality of instruction and efficiency.

Existing mechanical design course teaching aid function is more single, and a set of teaching aid is only capable of displaying a kind of mechanical movement, extensively Property it is lower, generally teacher demonstrates, and interact with student less, and practicality is lower, and position is fixed when teaching aid demonstrates mechanical movement, Considerable visual field relatively narrower, partial students can not see demo content, to reduce effect of giving lessons.

Utility model content

The purpose of this utility model is to provide a kind of mechanical design course combined appliance for teaching, solve in background technique and are mentioned Out the problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of mechanical design course combined appliance for teaching, Structure includes pedestal, gearbox, electric pushrod and head-shaking device, and the base top is fixedly connected with support frame bottom, described It is fixedly connected at the top of support frame with bottom of upright rod, the upright bar middle-end is connect with support base screw, on the left of the support base and admittedly Determine the connection of frame screw, the fixed frame is fixedly connected with first motor, and the first motor and clutch pass through motor axis connection, Gearbox is equipped on the right side of the clutch, the gearbox includes jackshaft, and electric pushrod is equipped on the right side of the gearbox, described Electric pushrod includes lead screw, and the support base bottom right side is fixedly connected with control panel, and the upright bar top left side is equipped with and shakes Head device, the head-shaking device include the second motor.

As a kind of preferred embodiment of the utility model, the gearbox and clutch pass through intermediate axis connection, institute It states and is equipped with transparent outer cover on the outside of gearbox, the jackshaft connects with the bottom gears key of first gear pair and second gear pair respectively It connects, the top gear of the first gear pair and second gear pair is keyed with splined shaft respectively.

As a kind of preferred embodiment of the utility model, the first gear is secondary to be equipped with set between second gear pair Cylinder, the sleeve and splined shaft are keyed, and are fixedly connected at the top of the sleeve with selector fork, the selector fork and handle are hinged.

As a kind of preferred embodiment of the utility model, described lead screw one end is connect with splined shaft by bearing, institute It states and is equipped with transparent guide sleeve on the outside of lead screw, the lead screw is threadedly coupled with feed screw nut, the lead screw other end and the fixed company of push rod It connects.

As a kind of preferred embodiment of the utility model, second motor is connect with worm screw by bearing, described Worm and wheel engagement, the worm gear and engagement shaft are keyed, and single-chip microcontroller, the single-chip microcontroller and control are equipped at the top of the worm gear Panel is electrically connected, and the engagement shaft bottom and spur gear are keyed, and the spur gear is equipped with crank, the spur gear and company Bar one end is connected by crank, and the connecting rod other end is connect with swing disc by crank, and the swing disc and upright bar are keyed.

Compared with prior art, the beneficial effects of the utility model are as follows:

1. the mechanical design course combined appliance for teaching demonstrates gear engagement and transmission principle by transparent gearbox, electronic Push rod demonstrates lead screw transmission and flexible rod principle, and the content of courses is extensive, and gearbox is externally provided with handle and takes action on one's own convenient for student Operation enhances teaching practice.

2. the mechanical design course combined appliance for teaching, by the way that head-shaking device is arranged in upright bar, upright bar, which is waved, enables support base left The right side is waved, to improve the field of view of teaching aid demonstration, is facilitated the comprehensive observation demo content of student, is enhanced effect of giving lessons.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is a kind of overall structure diagram of mechanical design course combined appliance for teaching of the utility model；

Fig. 2 is a kind of gearbox designs figure of mechanical design course combined appliance for teaching of the utility model；

Fig. 3 is a kind of electric pushrod structure chart of mechanical design course combined appliance for teaching of the utility model；

Fig. 4 is a kind of head-shaking device structure chart of mechanical design course combined appliance for teaching of the utility model.

In figure: pedestal -1, support frame -2, support base -3, control panel -4, fixed frame -5, first motor -6, motor shaft - 7, clutch -8, gearbox -9, electric pushrod -10, upright bar -11, head-shaking device -12, jackshaft -13, transparent outer cover -14, One gear pair -15, second gear secondary -16, splined shaft -17, sleeve -18, selector fork -19, handle -20, transparent guide sleeve -21, silk It is thick stick -22, feed screw nut -23, push rod -24, the second motor -25, worm screw -26, worm gear -27, single-chip microcontroller -28, engagement shaft -29, straight Gear -30, connecting rod -31, crank -32, swing disc -33.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of mechanical design course combined appliance for teaching, knot Structure includes pedestal 1, gearbox 9, electric pushrod 10 and head-shaking device 12, and 1 top of pedestal is fixed with 2 bottom of support frame to be connected It connects, 2 top of support frame as described above is fixedly connected with 11 bottom of upright bar, and 11 middle-end of upright bar is connect with 3 screw of support base, the branch 3 left side of support seat is connect with 5 screw of fixed frame, and the fixed frame 5 is fixedly connected with first motor 6, the first motor 6 and clutch Device 8 is connected by motor shaft 7, and gearbox 9 is equipped on the right side of the clutch 8, and the gearbox 9 includes jackshaft 13, the change Electric pushrod 10 is equipped on the right side of fast case 9, the electric pushrod 10 includes lead screw 22,3 bottom right side of support base and control plane Plate 4 is fixedly connected, and 11 top left side of upright bar is equipped with head-shaking device 12, and the head-shaking device 12 includes the second motor 25.

Referring to Fig. 2, the gearbox 9 is connect with clutch 8 by jackshaft 13, it is equipped on the outside of the gearbox 9 saturating Bright shell 14, bottom gears of the jackshaft 13 respectively with first gear pair 15 and second gear pair 16 are keyed, and described the One gear pair 15 and the top gear of second gear pair 16 are keyed with splined shaft 17 respectively, and the engagement of demonstration gear and speed change are former Reason.

Referring to Fig. 2, being equipped with sleeve 18, the sleeve 18 and flower between the first gear pair 15 and second gear pair 16 Key axis 17 is keyed, and 18 top of sleeve is fixedly connected with selector fork 19, and the selector fork 19 and handle 20 are hinged, convenient for learning Life takes action on one's own to operate, and enhances teaching practice.

Referring to Fig. 3, described 22 one end of lead screw is connect with splined shaft 17 by bearing, it is equipped on the outside of the lead screw 22 transparent Guide sleeve 21, the lead screw 22 are threadedly coupled with feed screw nut 23, and 22 other end of lead screw is fixedly connected with push rod 24, demonstrate silk Thick stick transmission and flexible rod principle.

Referring to Fig. 4, second motor 25 is connect with worm screw 26 by bearing, the worm screw 26 engages with worm gear 27, The worm gear 27 is keyed with engagement shaft 29, and single-chip microcontroller 28, the single-chip microcontroller 28 and control panel 4 are equipped at the top of the worm gear 27 It is electrically connected, 29 bottom of engagement shaft and spur gear 30 are keyed, and the spur gear 30 is equipped with crank 32, the spur gear 30 are connect with 31 one end of connecting rod by crank 32, and 31 other end of connecting rod is connect with swing disc 33 by crank 32, described to shake Balance 33 and upright bar 11 are keyed, and are improved the field of view of teaching aid demonstration, are facilitated the comprehensive observation demo content of student, enhancing is awarded Class effect.

Teaching aid is placed in dais when use by a kind of mechanical design course combined appliance for teaching described in the utility model, is operated Control panel 4 opens first motor 5, enables jackshaft 13 rotate through clutch 8, and then drives first gear pair 15 and the second tooth Wheel set 16 is freely rotated, and can operate the handle 20 outside gearbox 9 at this time, changes 18 position of sleeve by selector fork 19, enables sleeve 18 engage with first gear pair 15 or secondary 16 top gears of second gear, to influence splined shaft 17, splined shaft 17 are enabled to rotate, and For different gear pairs due to of different sizes, adjustable 17 velocity of rotation of splined shaft reaches speed changing effect, the engagement of demonstration gear and Transmission principle, splined shaft 17 rotate power pass to lead screw 22, through lead screw 22 and feed screw nut 23 effect become rotary motion into Linear motion pushes push rod 24 to demonstrate lead screw transmission and flexible rod principle, and when demonstration starts the second motor 25, is passed through by worm-drive The rotation of 29 turn spur 30 of engagement shaft enables upright bar 11 wave, reaches so that enabling connecting rod 31 and crank 32 cooperate pushes swing disc 33 To effect of shaking the head, teaching demonstration is completed.

The pedestal 1 of the utility model, support frame 2, support base 3, control panel 4, fixed frame 5, first motor 6, motor shaft 7, clutch 8, gearbox 9, electric pushrod 10, upright bar 11, head-shaking device 12, jackshaft 13, transparent outer cover 14, first gear pair 15, second gear pair 16, splined shaft 17, sleeve 18, selector fork 19, handle 20, transparent guide sleeve 21, lead screw 22, feed screw nut 23, Push rod 24, worm screw 26, worm gear 27, single-chip microcontroller 28, engagement shaft 29, spur gear 30, connecting rod 31, crank 32, waves at second motor 25 Disk 33, component are universal standard part or component as known to those skilled in the art, and structure and principle are all this technology personnel It can be learnt by technical manual or be known by routine experiment method, the utility model solves the problems, such as it is that existing machinery is set It counts that course teaching aid function is more single, and teaching aid widespread popularity is lower, is interacted with student less, practicality is lower, and teaching aid is drilled Position is fixed when showing mechanical movement, and considerable visual field relatively narrower, partial students can not see demo content, to reduce effect of giving lessons The problems such as, the utility model is combined with each other by above-mentioned component, demonstrates gear engagement by transparent gearbox and speed change is former Reason, electric pushrod demonstrate lead screw transmission and flexible rod principle, and the content of courses is extensive, and gearbox is externally provided with handle convenient for student parent From hands-on, enhance teaching practice, by the way that head-shaking device is arranged in upright bar, upright bar, which is waved, enables support base be swung left and right, To improve the field of view of teaching aid demonstration, facilitate the comprehensive observation demo content of student, enhances effect of giving lessons.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of mechanical design course combined appliance for teaching, structure includes pedestal (1), gearbox (9), electric pushrod (10) and shakes the head Device (12), it is characterised in that: be fixedly connected at the top of the pedestal (1) with support frame (2) bottom, at the top of support frame as described above (2) It is fixedly connected with upright bar (11) bottom, upright bar (11) middle-end is connect with support base (3) screw, on the left of the support base (3) It is connect with fixed frame (5) screw, the fixed frame (5) is fixedly connected with first motor (6), the first motor (6) and clutch Device (8) is connected by motor shaft (7), is equipped with gearbox (9) on the right side of the clutch (8), the gearbox (9) includes jackshaft (13), electric pushrod (10) are equipped on the right side of the gearbox (9), the electric pushrod (10) includes lead screw (22), the support Seat (3) bottom right side is fixedly connected with control panel (4), and upright bar (11) top left side is equipped with head-shaking device (12), described Head-shaking device (12) includes the second motor (25).

2. a kind of mechanical design course combined appliance for teaching according to claim 1, it is characterised in that: the gearbox (9) with Clutch (8) is connected by jackshaft (13), is equipped with transparent outer cover (14) on the outside of the gearbox (9), the jackshaft (13) The bottom gears with first gear secondary (15) and second gear secondary (16) are keyed respectively, and the first gear is secondary (15) and second The top gear of gear pair (16) is keyed with splined shaft (17) respectively.

3. a kind of mechanical design course combined appliance for teaching according to claim 2, it is characterised in that: the first gear pair (15) sleeve (18) are equipped between second gear secondary (16), the sleeve (18) and splined shaft (17) are keyed, the sleeve (18) top is fixedly connected with selector fork (19), and the selector fork (19) and handle (20) are hinged.

4. a kind of mechanical design course combined appliance for teaching according to claim 1, it is characterised in that: described lead screw (22) one end It is connect with splined shaft (17) by bearing, transparent guide sleeve (21), the lead screw (22) and lead screw is equipped on the outside of the lead screw (22) Nut (23) is threadedly coupled, and lead screw (22) other end is fixedly connected with push rod (24).

5. a kind of mechanical design course combined appliance for teaching according to claim 1, it is characterised in that: second motor (25) It is connect with worm screw (26) by bearing, the worm screw (26) is engaged with worm gear (27), the worm gear (27) and engagement shaft (29) key Connection, worm gear (27) top are equipped with single-chip microcontroller (28), and the single-chip microcontroller (28) and control panel (4) are electrically connected, described Engagement shaft (29) bottom and spur gear (30) are keyed, and the spur gear (30) is equipped with crank (32), the spur gear (30) It is connect with connecting rod (31) one end by crank (32), connecting rod (31) other end and swing disc (33) are connected by crank (32) It connects, the swing disc (33) and upright bar (11) are keyed.