CN210181918U

CN210181918U - Gear cooperation teaching aid for machinery teaching

Info

Publication number: CN210181918U
Application number: CN201920760963.XU
Authority: CN
Inventors: Hong Zhang; 张宏; Yongbiao Jiang; 蒋永彪; Changyou Yang; 杨长友
Original assignee: Guizhou Equipment Manufacturing Vocational College
Current assignee: Guizhou Equipment Manufacturing Vocational College
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-03-24
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses a gear cooperation teaching aid for mechanical teaching, the on-line screen storage device comprises a base, the plummer is installed through electric telescopic handle to the upper surface of base, the upper surface mounting of plummer has the demonstration board, the front surface mounting of demonstration board has the slide, slide internally mounted has the drive rack, the fixed slot has been seted up to the front surface of demonstration board, the fixed slot passes through the mounting and installs the demonstration gear, the demonstration gear with the upper portion rodent cooperation of drive rack, the below of slide is provided with drive assembly, to sum up, the beneficial effects of the utility model reside in that: the demonstration gear is driven to rotate by the driving assembly through the transmission rack, so that scenes in the gear rotation process can be displayed really and remarkably, the installation position and the transmission sequence of the demonstration gear can be adjusted at will, and the demonstration method is flexible and various; the height of the demonstration board can be adjusted through the electric telescopic rod, so that the students in the back row can watch the demonstration board conveniently, and the teaching quality can be improved.

Description

Gear cooperation teaching aid for machinery teaching

Technical Field

The utility model relates to a machinery teaching technical field, concretely relates to gear cooperation teaching aid for machinery teaching.

Background

When teachers teach machinery, small mechanical structures are generally illustrated and explained, the small mechanical structures are not enough to be imaged, and are easy to cause obscure feelings to students, so that mechanical models can be adopted for demonstration, but when demonstration gears are matched to operate, a plurality of gears are simply overlapped together, only subjective assumption can be made, a gear rotating scene is imagined, the gear matching process cannot be really and remarkably demonstrated, part mounting plates of existing mechanical principle teaching aids are directly fixed on a table board of a laboratory, and a large number of students in the back can not see the teaching aids when teachers explain the teaching aids, so that the teaching quality is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gear cooperation teaching aid for mechanical teaching just in order to solve above-mentioned problem, the advantage can really be effectual demonstration gear cooperation pivoted scene, can adjust the height of teaching aid moreover, and the back row classmate of being convenient for is watched, sees the explanation below in detail.

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

the utility model provides a gear cooperation teaching aid for mechanical teaching, the on-line screen storage device comprises a base, the plummer is installed through electric telescopic handle to the upper surface of base, the upper surface of plummer is installed and is demonstrated the board, the front surface of demonstration board is installed the slide, the slide is located demonstration board middle part position on the lower side, and the slide is followed demonstration board length direction horizontal extension;

slide internally mounted has the transmission rack, a plurality of rectangle fixed slot has been seted up to the front surface of demonstration board, the fixed slot is located transmission rack top, the demonstration gear is installed through the mounting to the fixed slot, the demonstration gear with the upper portion rodent cooperation of transmission rack, the below of slide is provided with drive assembly, drive assembly with the lower part rodent cooperation of transmission rack.

When the gear matching teaching aid for mechanical teaching is used, the demonstration gears with different sizes are selected according to teaching requirements, the fixing grooves in proper positions are selected according to the sizes of the demonstration gears, the fixing piece is inserted into the fixing grooves, the demonstration gears are installed on the outer sides of the fixing piece, the demonstration gears are matched with one another, and one of the demonstration gears is matched with the transmission rack tooth; the driving assembly is rotated to drive the transmission rack to move, the transmission rack drives the demonstration gears to rotate, the demonstration gears are driven to rotate mutually, and a real scene when the gears are in rotating fit is demonstrated; according to the height of podium, start electric telescopic handle, electric telescopic handle extends, upwards promotes the plummer makes the demonstration board rises, until the back row student can see the demonstration gear.

As preferred, electric telescopic handle's both sides are provided with flexible pipe, flexible pipe includes the outer tube, the outer tube with the last fixed surface of base is connected, the sealing ring is installed to outer tube top opening part, the inside interior pole that is provided with of outer tube, interior pole runs through the sealing ring, the top of interior pole with the lower fixed surface of plummer is connected, the lift slider is installed to the bottom of interior pole, the lift slider is located inside the outer tube.

Preferably, the cross section of the slide way is of a concave structure, a guide groove penetrates through the inner bottom of the slide way, and the guide groove extends along the length direction of the slide way.

As preferred, the driving rack includes the transmission body, the transmission body is the cuboid structure, the upper surface of transmission body is provided with the transmission tooth, go up the transmission tooth with the demonstration gear is mutually supported, the lower surface of transmission body is provided with down the driving tooth, down the driving tooth with drive assembly mutually supports, just go up the width size of transmission tooth with the width size of driving tooth all is less than down the width size of transmission body, and equals the width size of slide inner chamber.

As preferred, drive assembly includes the spliced pole, the spliced pole runs through the demonstration board, and runs through the bearing is installed to the position of demonstration board, drive gear and carousel are installed respectively to the both ends of spliced pole, drive gear is located the front side of demonstration board, and with the cooperation of lower transmission tooth, the carousel is located the rear side of demonstration board, the carousel is kept away from the handle is installed to one side of drive gear.

Preferably, the fixing piece comprises a positioning block, the positioning block is in clearance fit with the fixing groove, a fixing column is installed on the upper portion of the positioning block, and the fixing column is in clearance fit with an inner ring of the demonstration gear.

To sum up, the beneficial effects of the utility model reside in that: 1. the demonstration gear is driven to rotate by the driving assembly through the transmission rack, so that scenes in the gear rotation process can be displayed really and remarkably, the installation position and the transmission sequence of the demonstration gear can be adjusted at will, and the demonstration method is flexible and various;

2. the height of the demonstration board can be adjusted through the electric telescopic rod, so that the students in the back row can watch the demonstration board conveniently, and the teaching quality can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic diagram of the right-view internal structure of the present invention;

fig. 3 is a right side cross-sectional view of the slide of the present invention;

fig. 4 is a right side cross-sectional view of the drive rack of the present invention;

fig. 5 is a right structural schematic view of the driving assembly of the present invention;

fig. 6 is a schematic perspective view of the fixing member of the present invention;

fig. 7 is a schematic view of the internal structure of the telescopic rod of the present invention;

fig. 8 is a schematic structural view of the demonstration gear of the present invention.

The reference numerals are explained below:

1. a base; 2. an electric telescopic rod; 3. a bearing table; 4. a telescopic pipe; 401. an outer tube; 402. an inner rod; 403. a lifting slide block; 404. a seal ring; 5. a demonstration board; 501. fixing grooves; 6. a slideway; 601. a guide groove; 7. a drive rack; 701. a transmission body; 702. the transmission teeth are arranged; 703. a lower transmission gear; 8. a drive assembly; 801. a drive gear; 802. a turntable; 803. connecting columns; 804. a handle; 9. a demonstration gear; 901. an inner ring; 10. a fixing member; 1001. positioning blocks; 1002. and (5) fixing the column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-8, the utility model provides a gear cooperation teaching aid for mechanical teaching, including base 1, bearing platform 3 is installed through electric telescopic handle 2 to the upper surface of base 1, it is preferred, electric telescopic handle 2 passes through the mount pad to be connected between base 1 and bearing platform 3, and electric telescopic handle 2 and this mount pad are mature technology among the prior art, demonstration board 5 is installed to the upper surface of bearing platform 3, the front surface of demonstration board 5 is installed slide 6, slide 6 is located the position that demonstrates board 5 middle part is lower, and slide 6 extends along demonstration board 5 length direction level;

slide 6 internally mounted has drive rack 7, and a plurality of rectangle fixed slot 501 has been seted up to the front surface of demonstration board 5, and fixed slot 501 is located drive rack 7 top, and demonstration gear 9 is installed through mounting 10 to fixed slot 501, and demonstration gear 9 cooperates with the upper portion rodent of drive rack 7, and the below of slide 6 is provided with drive assembly 8, drive assembly 8 and the cooperation of the lower part rodent of drive rack 7.

As a preferable example of many embodiments, the two sides of the electric telescopic rod 2 are provided with telescopic tubes 4, each telescopic tube 4 comprises an outer tube 401, the outer tube 401 is fixedly connected with the upper surface of the base 1, a sealing ring 404 is installed at an opening at the top of the outer tube 401, preferably, the sealing ring 404 is connected with the outer tube 401 through a thread fit, so that a damaged inner rod 402 can be conveniently replaced, an inner rod 402 is arranged inside the outer tube 401, the inner rod 402 penetrates through the sealing ring 404, the top end of the inner rod 402 is fixedly connected with the lower surface of the bearing platform 3, the bottom end of the inner rod 402 is provided with a lifting slider 403, the lifting slider 403 is located inside the outer tube 401, when the electric telescopic tube 4 is stretched, the inner rod 402 is lifted inside the outer tube 401 to assist the electric telescopic; the cross section of the slide 6 is of a concave structure, a guide groove 601 penetrates through the inner bottom of the slide 6, the guide groove 601 extends along the length direction of the slide 6, the transmission rack 7 comprises a transmission body 701, the transmission body 701 is of a cuboid structure, an upper transmission tooth 702 is arranged on the upper surface of the transmission body 701, the upper transmission tooth 702 is matched with the demonstration gear 9, a lower transmission tooth 703 is arranged on the lower surface of the transmission body 701, the lower transmission tooth 703 is matched with the driving component 8, the width size of the upper transmission tooth 702 and the width size of the lower transmission tooth 703 are both smaller than that of the transmission body 701 and equal to that of the inner cavity of the slide 6, the lower transmission tooth 703 extends into the inner cavity of the slide 6, the transmission body 701 is clamped on the upper surface of the slide 6, the transmission tooth is limited by the slide 6, the transmission rack 7 can only move along the slide 6, and the deviation direction of the transmission rack 7 during movement is avoided, thereby preventing the drive rack 7 from being separated from the demonstration gear 9, and the drive assembly 8.

The driving assembly 8 comprises a connecting column 803, the connecting column 803 penetrates through the demonstration plate 5, and a bearing is installed at a position penetrating through the demonstration plate 5, a driving gear 801 and a turntable 802 are respectively installed at two ends of the connecting column 803, the driving gear 801 is located at the front side of the demonstration plate 5 and is matched with the meshing teeth of the lower transmission teeth 703, the turntable 802 is located at the rear side of the demonstration plate 5, a handle 804 is installed at one side of the turntable 802 far away from the driving gear 801, the turntable 802 is rotated through the handle 804, the turntable 802 drives the driving gear 801 to rotate through the connecting column 803, the driving gear 801 drives the transmission rack 7 to move, so as to drive the demonstration gear 9 to rotate, the turntable 802 is arranged at the rear side of the demonstration plate 5, even if the driving operation of a teacher is facilitated; the fixing piece 10 comprises a positioning block 1001, the positioning block 1001 is in clearance fit with a fixing groove 501, a fixing column 1002 is installed on the upper portion of the positioning block 1001, the fixing column 1002 is in clearance fit with an inner ring 901 of the demonstration gear 9, the demonstration gear 9 can be conveniently clamped on the surface of the demonstration board 5 through the cooperation of the positioning block 1001 and the fixing groove 501, the position of the demonstration gear 9 can be easily changed, the transmission sequence of the demonstration gear 9 can be easily changed, and the demonstration method is flexible and diverse.

When the gear matching teaching aid for mechanical teaching is used, demonstration gears 9 with different sizes are selected according to teaching requirements, fixing grooves 501 in proper positions are selected according to the sizes of the demonstration gears 9, the fixing pieces 10 are inserted into the fixing grooves 501, the demonstration gears 9 are installed on the outer sides of the fixing pieces 10, the demonstration gears 9 are matched with one another, and one of the demonstration gears 9 is matched with the tooth of the transmission rack 7; the driving assembly 8 is rotated, the driving assembly 8 drives the transmission rack 7 to move, the transmission rack 7 drives the demonstration gears 9 to rotate, the demonstration gears 9 are driven to rotate mutually, and a real scene when the gears are in rotating fit is demonstrated; according to the height of podium, start electric telescopic handle 2, electric telescopic handle 2 extends, upwards promotes plummer 3, makes demonstration board 5 rise until the back row student can see demonstration gear 9.

The demonstration gear 9 is driven to rotate by the driving component 8 through the transmission rack 7, so that scenes in the gear rotation process can be displayed really and remarkably, and the installation position and the transmission sequence of the demonstration gear 9 can be adjusted at will, so that the demonstration method is flexible and various; the height of the demonstration board 5 can be adjusted through the electric telescopic rod 2, so that the students in the back row can watch the demonstration board conveniently, and the teaching quality can be improved.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a gear cooperation teaching aid for mechanical teaching which characterized in that: the demonstration board comprises a base (1), wherein a bearing table (3) is installed on the upper surface of the base (1) through an electric telescopic rod (2), a demonstration board (5) is installed on the upper surface of the bearing table (3), a slide (6) is installed on the front surface of the demonstration board (5), the slide (6) is located in the position, lower than the middle of the demonstration board (5), of the middle of the demonstration board (5), and the slide (6) horizontally extends along the length direction of the demonstration board (5);

slide (6) internally mounted has drive rack (7), a plurality of rectangle fixed slot (501) have been seted up to the front surface of demonstration board (5), fixed slot (501) are located drive rack (7) top, demonstration gear (9) are installed through mounting (10) in fixed slot (501), demonstration gear (9) with the upper portion rodent cooperation of drive rack (7), the below of slide (6) is provided with drive assembly (8), drive assembly (8) with the lower part rodent cooperation of drive rack (7).

2. The gear cooperation teaching aid for mechanical teaching of claim 1, characterized in that: the both sides of electric telescopic handle (2) are provided with flexible pipe (4), flexible pipe (4) include outer tube (401), outer tube (401) with the last fixed surface of base (1) is connected, sealing ring (404) are installed to outer tube (401) top opening part, pole (402) in outer tube (401) inside being provided with, interior pole (402) run through sealing ring (404), the top of interior pole (402) with the lower fixed surface of plummer (3) is connected, lifting slide (403) are installed to the bottom of interior pole (402), lifting slide (403) are located inside outer tube (401).

3. The gear cooperation teaching aid for mechanical teaching of claim 1, characterized in that: the cross section of slide (6) is "concave" style of calligraphy structure, guide way (601) have been seted up in the interior bottom of slide (6) runs through, guide way (601) are followed slide (6) length direction extends.

4. The gear cooperation teaching aid for mechanical teaching of claim 1, characterized in that: the transmission rack (7) comprises a transmission body (701), the transmission body (701) is of a cuboid structure, the upper surface of the transmission body (701) is provided with an upper transmission tooth (702), the upper transmission tooth (702) is matched with the demonstration gear (9), the lower surface of the transmission body (701) is provided with a lower transmission tooth (703), the lower transmission tooth (703) is matched with the driving component (8), the width size of the upper transmission tooth (702) is smaller than that of the lower transmission tooth (703), and the width size of the lower transmission tooth (703) is equal to that of the inner cavity of the slide way (6).

5. The gear cooperation teaching aid for mechanical teaching of claim 4, characterized in that: drive assembly (8) are including spliced pole (803), spliced pole (803) run through demonstration board (5), and run through the bearing is installed to the position of demonstration board (5), drive gear (801) and carousel (802) are installed respectively to the both ends of spliced pole (803), drive gear (801) are located the front side of demonstration board (5), and with transmission tooth (703) rodent cooperation down, carousel (802) are located the rear side of demonstration board (5), carousel (802) are kept away from handle (804) are installed to one side of drive gear (801).

6. The gear cooperation teaching aid for mechanical teaching of claim 1, characterized in that: the fixing piece (10) comprises a positioning block (1001), the positioning block (1001) is in clearance fit with the fixing groove (501), a fixing column (1002) is installed on the upper portion of the positioning block (1001), and the fixing column (1002) is in clearance fit with an inner ring (901) of the demonstration gear (9).