CN209785364U

CN209785364U - Friction drive type constant-speed dragging device for mechanics teaching

Info

Publication number: CN209785364U
Application number: CN201822241606.0U
Authority: CN
Inventors: 王宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2019-12-13
Anticipated expiration: 2028-12-28

Abstract

The utility model discloses a friction force driving type uniform speed dragging device for mechanics teaching, which relates to the field of teaching equipment and comprises a traction rope and a supporting plate; the uniform-speed motor works to enable the two gears to rotate at a uniform speed so as to drive the two conveyor belts to move at a uniform speed, and the two conveyor belts moving at a uniform speed rub and drag the traction rope, so that the traction rope can drag an object at a uniform speed, and the scientificity and the precision of an experiment are ensured; the traction rope is dragged by the friction of the two conveyor belts, and the contact area between the conveyor belts and the traction rope is large, so that the probability of fracture of the traction rope is reduced, and the use reliability of the device is ensured; this practicality is through beautiful mouth when aerifing or deflating the gasbag for gasbag inflation or shrink makes the distance between two conveyer belts can be adjusted at the certain limit, thereby drags the haulage rope of the different thicknesses of certain limit in, increases the flexibility that the device used, and reduces user's use burden.

Description

Friction drive type constant-speed dragging device for mechanics teaching

Technical Field

The utility model relates to a teaching equipment field specifically is a friction drive formula drive device at the uniform velocity for mechanics teaching.

Background

Mechanics is the science of studying the laws of mechanical motion of matter; mechanics occupies a very important position in physics, in a part of teaching experiments of physical mechanics, many experiments can be completed only by dragging an object at a constant speed to do linear motion, and two passing methods are provided: 1. the object is dragged to move at a constant speed by hand and feeling, which is not strict; 2. a constant-speed motor is used for directly winding a wire through a belt pulley to drag an object to move at a constant speed, but the number of the wound wires in the belt pulley is increased, the diameter of the wound wire is increased, and the rotating speed of the motor is constant, so that the phenomenon that the front speed is slower and the rear speed is faster when the object is dragged occurs.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

To the problem that exists among the prior art, the utility model aims to provide a friction drive formula is at the uniform velocity draw gear for mechanics teaching, when using, through at the uniform velocity motor work for two gears are at the uniform velocity rotated, thereby drive two conveyer belts at the uniform velocity motion, and the conveyer belt friction through two at the uniform velocity motion drags the haulage rope, makes the haulage rope can drag the object at the uniform velocity, guarantees the scientific and accurate nature of experiment, thereby has solved the problem of mentioning in the above-mentioned background story.

2. Technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

A friction force driving type constant-speed dragging device for mechanics teaching comprises a dragging rope and a supporting plate, wherein a mounting plate is arranged above the supporting plate, the mounting plate is connected with the supporting plate through a connecting device with a lifting function, a dragging mechanism is arranged on the mounting plate, the dragging mechanism consists of two vertically arranged conveyor belt mechanisms and a driving mechanism for driving the two conveyor belt mechanisms to rotate, the dragging rope is located between the two conveyor belt mechanisms, each conveyor belt mechanism consists of a conveyor belt, a driving wheel, an air bag, a driven wheel, a beautiful mouth and a gear, the driving wheel and the driven wheel are in transmission connection through the conveyor belts, the outer surface of the conveyor belt is fixedly connected with the air bag, and the beautiful mouth for inflating and deflating the air bag is arranged on the; the driving wheel and the driven wheel are rotatably connected with one side surface of the mounting plate through rotating shafts, the rotating shafts fixedly connected with the driving wheel penetrate through the mounting plate, the penetrating ends of the rotating shafts penetrating through the mounting plate in the two conveyor belt mechanisms are fixedly connected with gears, and the two gears are meshed with each other; the driving mechanism is a constant-speed motor, the other side surface of the mounting plate is fixedly connected with the constant-speed motor through a motor mounting seat, and the output end of the constant-speed motor is fixedly connected with the other side rotating center of one of the gears.

As a further aspect of the present invention: the connecting device comprises a first knob, a transmission shaft, an internal thread sleeve, a first threaded rod, a driven bevel gear and a driving bevel gear, wherein the lower surface of the mounting plate is fixedly connected with the two internal thread sleeves with openings at the lower ends and arranged symmetrically; the mounting plate is characterized in that a transmission shaft is rotatably connected in the mounting groove formed in the supporting plate, two driving bevel gears which rotate coaxially are fixedly connected to the transmission shaft, the driving bevel gears are meshed with the corresponding driven bevel gears, one end of the transmission shaft penetrates through the supporting plate and is fixedly connected with a first knob, and the working height of the mounting plate can be adjusted through a connecting device.

As a further aspect of the present invention: install the admission machine who is used for the rolling haulage rope on the mounting panel and construct, admission machine constructs by receiving line roller and clip and constitutes, receive the line roller and rotate with the mounting panel and be connected, and receive one side that the line roller is located the conveyer belt output, and receive the clip that installs on the line roller, the clip is used for the centre gripping haulage rope, is favorable to the arrangement of haulage rope.

As a further aspect of the present invention: surface mounting has the centre gripping fixed establishment who is used for being connected with the desktop under the one end of backup pad, and centre gripping fixed establishment comprises L shaped plate, clamp plate, threaded rod two and knob two, the lower fixed surface of L shaped plate and backup pad is connected, and is equipped with the clamp plate between L shaped plate and the backup pad, and the lower surface of clamp plate rotates the one end of connecting threaded rod two, and threaded rod two runs through the L shaped plate and with L shaped plate threaded connection, and the through end fixedly connected with knob two of threaded rod two, makes whole device can firmly place on the desktop through centre gripping fixed establishment, reduces the probability that the device falls.

As a further aspect of the present invention: the upper surface of the pressing plate is fixedly connected with a rubber pad, and the pressing plate can be additionally provided with the rubber pad.

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

1. This practicality is through at the uniform velocity motor work for two gears are at the uniform velocity rotated, thereby drive two conveyer belts at the uniform velocity motion, drag the haulage rope through the conveyer belt friction of two uniform velocity motions, make the haulage rope can drag the object at the uniform velocity, guarantee the scientific and accurate nature of experiment.

2. The traction rope is dragged by the friction of the two conveyor belts, and the contact area between the conveyor belts and the traction rope is large, so that the probability of fracture of the traction rope is reduced, and the use reliability of the device is ensured;

3. When the air bag is inflated or deflated through the beauty nozzle, the air bag is expanded or contracted, so that the distance between the two conveyor belts can be adjusted within a certain range, thereby dragging the traction ropes with different thicknesses within a certain range, increasing the flexibility of the device in use and reducing the use burden of a user;

4. The working height of mounting panel can be adjusted in this practicality to make the working height of conveyer belt also can adjust, when the position of the object that needs to drag is fixed, through the working height that the adjustment took area, make the angle of pulling of haulage rope can adjust, thereby be favorable to the mechanics teaching.

Drawings

Fig. 1 is a schematic structural diagram of a friction-driven constant-speed dragging device for mechanics teaching.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic side view of a friction-driven constant-speed dragging device for mechanics teaching.

Fig. 4 is a schematic structural diagram of a friction-driven constant-speed dragging device for mechanics teaching, which enables the whole device to be firmly placed on a desktop and reduces the probability of falling of the device.

In the figure: the device comprises a conveyor belt 1, a traction rope 2, a driving wheel 3, an air bag 4, a driven wheel 5, a beauty nozzle 6, a take-up roller 7, a mounting plate 8, a supporting plate 9, a first knob 10, a clamping and fixing mechanism 11, an L-shaped plate 1101, a pressing plate 1102, a second threaded rod 1103, a rubber pad 1104, a second knob 1105, a transmission shaft 12, an internal threaded sleeve 13, a first threaded rod 14, a driven bevel gear 15, a driving bevel gear 16, a constant speed motor 17 and a gear 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

referring to fig. 1, in the embodiment of the present invention, an embodiment of the present invention provides a friction drive type constant speed dragging device for mechanics teaching, including a traction rope 2 and a supporting plate 9, a mounting plate 8 is disposed above the supporting plate 9, the mounting plate 8 is connected to the supporting plate 9 through a connecting device having a lifting function, and a working height of the mounting plate 8 can be adjusted through the connecting device.

Referring to fig. 1 and fig. 3, a dragging mechanism is mounted on the mounting plate 8, the dragging mechanism is composed of two conveyor belt mechanisms arranged up and down and a driving mechanism for driving the two conveyor belt mechanisms to rotate, wherein the traction rope 2 is positioned between the two conveyor belt mechanisms, the conveyor belt mechanism is composed of a conveyor belt 1, a driving wheel 3, an airbag 4, a driven wheel 5, a beauty nozzle 6 and a gear 18, and the driving wheel 3 and the driven wheel 5 are in transmission connection through the conveyor belt 1; the driving wheel 3 and the driven wheel 5 are rotatably connected with one side surface of the mounting plate 8 through rotating shafts, the rotating shafts fixedly connected with the driving wheel 3 penetrate through the mounting plate 8, the penetrating ends of the rotating shafts penetrating through the mounting plate 8 in the two conveyor belt mechanisms are fixedly connected with gears 18, and the two gears 18 are mutually meshed; the driving mechanism is a constant-speed motor 17, the other side surface of the mounting plate 8 is fixedly connected with the constant-speed motor 17 through a motor mounting seat, the output end of the constant-speed motor 17 is fixedly connected with the rotating center of the other side of one gear 18, the two gears 18 rotate through the work of the constant-speed motor 17 so as to drive the two conveyor belts 1 to move at a constant speed, the two conveyor belts 1 moving at a constant speed rub and drag the traction rope 2, so that the traction rope 2 can drag an object at a constant speed, and the scientificity and the accuracy of an experiment are ensured; and drag haulage rope 2 through two conveyer belts 1 friction, conveyer belt 1 is great with haulage rope 2's area of contact, thereby reduce the cracked probability of haulage rope 2, the reliability of assurance device use, and conveyer belt 1's external fixed surface is connected with gasbag 4, the side-mounting of gasbag 4 has beautiful mouth 6 that is used for aerifing and deflating gasbag 4, when aerifing or deflating gasbag 4 through beautiful mouth 6, make gasbag 4 inflation or shrink, make the distance between two conveyer belts 1 can be adjusted at the certain limit, thereby drag haulage rope 2 of different thicknesses in the certain limit, increase the flexibility that the device used, and reduce user's use burden.

referring to fig. 1, the working height of the mounting plate 8 can be adjusted, so that the working height of the conveyor belt 1 can be adjusted, and when the position of an object to be dragged is fixed, the traction angle of the traction rope 2 can be adjusted by adjusting the working height of the conveyor belt 1, thereby facilitating mechanics teaching.

Referring to fig. 1 and 2, the connecting device is composed of a first knob 10, a transmission shaft 12, an internal thread sleeve 13, a first threaded rod 14, a driven bevel gear 15 and a driving bevel gear 16, the lower surface of the mounting plate 8 is fixedly connected with the two internal thread sleeves 13 which are opened at the lower ends and are symmetrically arranged, the upper surface of the support plate 9 is rotatably connected with the two first threaded rods 14 which are symmetrically arranged, one end of each first threaded rod 14 extends into the internal thread sleeve 13, and the other end of each first threaded rod 14 extends into a mounting groove formed in the support plate 9 and fixes the rotation center of one side of the driven bevel gear 15; the mounting groove internal rotation that backup pad 9 was seted up is connected with transmission shaft 12, transmission shaft 12 fixedly connected with two coaxial pivoted drive bevel gears 16, drive bevel gear 16 and the driven bevel gear 15 intermeshing that corresponds, and the one end of transmission shaft 12 runs through backup pad 9 and fixedly connected with knob 10, through rotating knob 10, make drive bevel gear 16 drive driven bevel gear 15 and rotate, thereby drive internal thread sleeve 13 along the motion of threaded rod 14, thereby make the distance between mounting panel 8 and the backup pad 9 adjustable, thereby make the working height of mounting panel 8 adjust.

referring to fig. 1, a take-up mechanism for winding the traction rope 2 is mounted on the mounting plate 8, the take-up mechanism is composed of a take-up roller 7 and a clamp, the take-up roller 7 is rotatably connected with the mounting plate 8, the take-up roller 7 is located on one side of the output end of the conveyor belt 1, the clamp is mounted on the take-up roller 7, and the clamp is used for clamping the traction rope 2; the one end of clip centre gripping haulage rope 2 makes haulage rope 2 rolling to receive on line roller 7 through rotating to receive line roller 7 to be favorable to the arrangement of haulage rope 2.

Referring to fig. 4, a clamping and fixing mechanism 11 for connecting with a desktop is installed on the lower surface of one end of the supporting plate 9, the clamping and fixing mechanism 11 is composed of an L-shaped plate 1101, a pressing plate 1102, a second threaded rod 1103 and a second knob 1105, the L-shaped plate 1101 is fixedly connected with the lower surface of the supporting plate 9, the pressing plate 1102 is arranged between the L-shaped plate 1101 and the supporting plate 9, the rubber pad 1104 is fixedly connected to the upper surface of the pressing plate 1102, the lower surface of the pressing plate 1102 is rotatably connected with one end of the second threaded rod 1103, the second threaded rod 1103 penetrates through the L-shaped plate 1101 and is in threaded connection with the L-shaped plate 1101, the second knob 1105 is fixedly connected to the penetrating end of the second threaded rod 1103, and the pressing plate 1102 moves towards the supporting plate 9 by rotating the second knob 1105, so that the fixing table top is pressed.

The utility model discloses circuit and control that relate to are prior art, do not carry out too much repetition here. The power consumption element is connected with the commercial power through a power line (not shown in the figure) and is supplied with power through the commercial power.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, should not be taken as limiting, and it should be noted that the terms "mounted" and "connected" are intended to be broadly construed, and include, for example, either fixed or removable connections, or integrally formed, mechanically connected, or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present application can be understood through specific situations.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a friction drive formula drive device at uniform velocity for mechanics teaching, includes haulage rope (2) and backup pad (9), its characterized in that, the top of backup pad (9) is equipped with mounting panel (8), and mounting panel (8) are connected with backup pad (9) through the connecting device that has raising and lowering functions, and installs drive mechanism on mounting panel (8), and drive mechanism comprises two conveyer belt mechanisms that set up from top to bottom and the actuating mechanism that is used for driving two conveyer belt mechanism rotations, wherein haulage rope (2) are located between two conveyer belt mechanisms, conveyer belt mechanism comprises conveyer belt (1), action wheel (3), gasbag (4), follow driving wheel (5), beautiful mouth (6) and gear (18), action wheel (3) and follow driving wheel (5) are connected through conveyer belt (1) transmission, and the surface fixed connection of conveyer belt (1) has gasbag (4), the side surface of the air bag (4) is provided with a beauty nozzle (6) for inflating and deflating the air bag (4); the driving wheel (3) and the driven wheel (5) are rotatably connected with one side surface of the mounting plate (8) through rotating shafts, the rotating shafts fixedly connected with the driving wheel (3) penetrate through the mounting plate (8), the penetrating ends of the rotating shafts penetrating through the mounting plate (8) in the two conveyor belt mechanisms are fixedly connected with gears (18), and the two gears (18) are meshed with each other; the driving mechanism is a constant speed motor (17), the other side surface of the mounting plate (8) is fixedly connected with the constant speed motor (17) through a motor mounting seat, and the output end of the constant speed motor (17) is fixedly connected with the other side rotation center of one of the gears (18).

2. The friction force driving type constant-speed dragging device for mechanics teaching according to claim 1, wherein the connecting device is composed of a first knob (10), a transmission shaft (12), a first internal thread sleeve (13), a first threaded rod (14), a driven bevel gear (15) and a driving bevel gear (16), the lower surface of the mounting plate (8) is fixedly connected with two symmetrically arranged internal thread sleeves (13) with openings at the lower ends, the upper surface of the supporting plate (9) is rotatably connected with two symmetrically arranged first threaded rods (14), one ends of the first threaded rods (14) extend into the internal thread sleeves (13), and the other ends of the first threaded rods (14) extend into mounting grooves formed in the supporting plate (9) and fix the rotating center of one side of the driven bevel gear (15); the supporting plate is characterized in that a transmission shaft (12) is rotationally connected in a mounting groove formed in the supporting plate (9), the transmission shaft (12) is fixedly connected with two driving bevel gears (16) which rotate coaxially, the driving bevel gears (16) are meshed with corresponding driven bevel gears (15), and one end of the transmission shaft (12) penetrates through the supporting plate (9) and is fixedly connected with a first knob (10).

3. The friction force drive type constant-speed dragging device for mechanics teaching of claim 1, wherein a wire take-up mechanism for winding the traction rope (2) is installed on the mounting plate (8), the wire take-up mechanism is composed of a wire take-up roller (7) and a clamp, the wire take-up roller (7) is rotatably connected with the mounting plate (8), the wire take-up roller (7) is located on one side of the output end of the conveyor belt (1), the clamp is installed on the wire take-up roller (7), and the clamp is used for clamping the traction rope (2).

4. The friction force driving type constant-speed dragging device for mechanics teaching of claim 1, wherein a clamping and fixing mechanism (11) used for being connected with a desktop is installed on the lower surface of one end of the supporting plate (9), the clamping and fixing mechanism (11) is composed of an L-shaped plate (1101), a pressing plate (1102), a second threaded rod (1103) and a second knob (1105), the L-shaped plate (1101) is fixedly connected with the lower surface of the supporting plate (9), the pressing plate (1102) is arranged between the L-shaped plate (1101) and the supporting plate (9), the lower surface of the pressing plate (1102) is rotatably connected with one end of the second threaded rod (1103), the second threaded rod (1103) penetrates through the L-shaped plate (1101) and is in threaded connection with the L-shaped plate (1101), and the second knob (1105) is fixedly connected with the penetrating end of the second threaded.

5. the friction force driven constant-speed dragging device for mechanics teaching of claim 4, wherein the upper surface of the pressing plate (1102) is fixedly connected with a rubber pad (1104).