CN213483234U

CN213483234U - Mechanical transmission demonstration teaching aid convenient for gear group number replacement

Info

Publication number: CN213483234U
Application number: CN202023084498.4U
Authority: CN
Inventors: 李岐峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-06-18
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a mechanical transmission demonstration teaching aid convenient for replacing gear group numbers, which comprises a substrate, a plurality of circular through holes are arranged in the substrate, a clamping component is fixedly arranged in the through holes, the clamping component is movably clamped with a bearing, the bearing is coaxially and rotatably arranged on a rotating shaft, a limit block is fixedly arranged on one side of the rotating shaft, a clamping component is movably arranged on one side of the limit block, a cylindrical clamping groove is concavely arranged on the end part of the other side of the rotating shaft, a cylindrical clamping block is coaxially and slidably clamped in the cylindrical clamping groove, a second bolt hole is concavely arranged on one side of the cylindrical clamping block, a crank is fixedly arranged on one side end part, a gear is sleeved outside the rotating shaft in a coaxial sliding manner, supporting rotating shafts are fixedly arranged on two sides of the substrate, the supporting rotating shafts are rotatably connected with a supporting frame, gear groups with different meshes are, meanwhile, the rotating shaft is matched with the gear basically, so that the gear is convenient to replace.

Description

Mechanical transmission demonstration teaching aid convenient for gear group number replacement

Technical Field

The utility model relates to a teaching aid technical field specifically is a mechanical transmission demonstration teaching aid convenient to change gear train number.

Background

Gear refers to a mechanical element on a rim with gears continuously engaged to transmit motion and power. The use of gears in transmissions has long emerged. At the end of the 19 th century, the principle of generating the cutting method and the successive appearance of special machine tools and cutters for cutting teeth by using the principle pay attention to the running stability of gears along with the development of production. In the course of study of "mechanical principle" and "mechanical design" course, gear drive's demonstration teaching aid can be used frequently to in the student strengthens understanding and the enhancement name of knowledge point to studying, the demonstration gear drive's principle that simultaneously more can be vivid, but the gear train transmission that has now demonstrates mostly is fixed gear train transmission, need use different demonstration teaching aids to demonstrate when the gear train transmission principle of needs demonstration difference, it costs relatively to consume, we propose a mechanical transmission demonstration teaching aid of being convenient for change gear train number for this reason and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical transmission demonstration teaching aid convenient to change gear train number to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mechanical transmission demonstration teaching aid convenient to change gear train number, includes the base plate, run through being equipped with a plurality of circular through-holes in the base plate, fixed mounting has the joint subassembly in the through-hole, joint subassembly activity joint has the bearing, the coaxial rotation of bearing is installed in the pivot, one side fixed mounting of pivot has the stopper, one side movable mounting of stopper has the joint subassembly, the opposite side tip indent of pivot is equipped with the cylinder draw-in groove, coaxial slip joint has the cylinder fixture block in the cylinder draw-in groove, one side indent of cylinder fixture block is equipped with second bolt hole, a side end fixed mounting has the crank, the coaxial slip overcoat of pivot has the gear, the both sides fixed mounting of base plate has the support pivot, the support pivot rotates and is connected with the support frame.

Preferably, the support frame includes fixed stay post, one side of fixed stay post is rotated and is connected with support pivot, opposite side slip joint and has been had movable support post, the activity support post indent is equipped with the spout, the fixed stay post of slip joint in the spout, one side that the movable support post is close to fixed stay post runs through and is equipped with first bolt hole.

Preferably, the bolt is installed to first bolt hole internal rotation, fixed stay post and activity support column slip joint department fixed mounting have the spacing of restriction activity support column pull-out, the tip that fixed stay post was kept away from to the activity support column is equipped with the fillet and the fillet external fixation covers has anti-skidding rubber pad.

Preferably, the gear can be equipped with the not same gear of a plurality of tooth counts, diameter, shape but all coaxial through-holes that are equipped with circular and rectangle and pile up, and the rectangle structure department indent of through-hole is equipped with the arc draw-in groove.

Preferably, one side of the cylindrical clamping groove penetrates through a circular bolt hole, a bolt is installed in the bolt hole in a rotating mode, and an arc-shaped groove is formed in one side of the bearing in a concave mode.

Preferably, the clamping component comprises a groove, the groove is respectively and inwards arranged on the limiting block and the base plate, a spring is fixedly arranged on the inner wall of one side of the groove, an arc-shaped clamping block is fixedly arranged at one end, far away from the inner wall of the groove, of the spring, and the arc-shaped clamping block is clamped in the groove in a sliding mode.

Preferably, the sliding clamping part of the groove and the arc-shaped fixture block is fixedly provided with a limiting ring for limiting the arc-shaped fixture block to pop out, and the end part of the arc-shaped fixture block, far away from the groove, is hemispherical.

Compared with the prior art, the beneficial effects of the utility model are that: different meshed gear sets are sleeved on the rotating shaft, and then the rotating shaft is inserted into the through hole in the base plate, so that demonstration of different gear sets can be met, meanwhile, the rotating shaft is matched with the base plate, the gears are convenient to replace, demonstration of different gear sets can be realized basically at the same time, and cost is saved; the different angles of base plate demonstration can be changed through the support frame of base plate both sides, and the non-slip rubber pad of support frame bottom has increased the frictional force with ground contact, prevents when demonstrating the rotating gear that the base plate takes place to skid and emptys.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the gear of the present invention;

FIG. 3 is a schematic view of a cross-sectional structure of the rotating shaft of the present invention;

FIG. 4 is a schematic cross-sectional view of the base plate of the present invention;

fig. 5 is a schematic view of the sectional structure of the support frame of the present invention.

In the figure: the clamping device comprises a base plate 1, a support frame 2, a fixed support column 21, a movable support column 22, a sliding groove 23, a first bolt hole 24, a support rotating shaft 3, a through hole 4, a gear 5, an arc-shaped clamping groove 51, a rotating shaft 6, a cylindrical clamping groove 61, a bearing 7, an arc-shaped groove 71, a clamping assembly 8, an arc-shaped clamping block 81, a spring 82, a groove 83, a bolt 9, a crank 10, a cylindrical clamping block 101, a second bolt hole 102 and a limiting block 11.

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. 1-5, the present invention provides a technical solution: the utility model provides a mechanical transmission demonstration teaching aid convenient to change gear train number, including base plate 1, run through being equipped with a plurality of circular through-holes 4 in the base plate 1, fixed mounting has joint subassembly 8 in the through-hole 4, joint subassembly 8 activity joint has bearing 7, the coaxial rotation of bearing 7 is installed on pivot 6, one side fixed mounting of pivot 6 has stopper 11, one side movable mounting of stopper 11 has joint subassembly 8, the opposite side tip indent of pivot 6 is equipped with cylinder draw-in groove 61, coaxial slip joint has cylinder fixture block 101 in the cylinder draw-in groove 61, one side indent of cylinder fixture block 101 is equipped with second bolt hole 102, a side end fixed mounting has crank 10, the coaxial slip overcoat of pivot 6 has gear 5, the both sides fixed mounting of base plate 1 has support shaft 3, support shaft 3 rotates and is connected with support frame 2.

As shown in fig. 5, the support frame 2 includes a fixed support column 21, one side of the fixed support column 21 is rotatably connected with a support rotating shaft 3, the other side of the fixed support column 21 is slidably connected with a movable support column 22 in a clamping manner, a sliding groove 23 is concavely arranged in the movable support column 22, the fixed support column 21 is slidably connected in the sliding groove 23 in a clamping manner, and a first bolt hole 24 is arranged on one side of the movable support column 22 close to the fixed support column. Bolt 9 is installed in the rotation of first bolt hole 24, and fixed stay post 21 and movable stay post 22 slip joint department fixed mounting have the spacing of restriction movable stay post 22 pull-out, and movable stay post 22 keeps away from the tip of fixed stay post 21 and is equipped with the fillet and the fillet external fixation covers has anti-skidding rubber pad.

As shown in fig. 2, the gear 5 may have a plurality of gears with different numbers of teeth, diameters and shapes but all coaxially pass through the through holes stacked in circular and rectangular shapes, and the rectangular structure of the through hole is concavely provided with an arc-shaped slot 51.

As shown in fig. 1, a circular bolt hole is formed through one side of the cylindrical clamping groove 61, a bolt 9 is rotatably mounted in the bolt hole, and an arc-shaped groove 71 is concavely formed in one side of the bearing 7.

As shown in fig. 3 and 4, the clamping assembly 8 includes a groove 83, the groove 83 is respectively recessed in the limiting block 11 and the substrate 1, a spring 82 is fixedly mounted on an inner wall of one side of the groove 83, an arc-shaped latch 81 is fixedly mounted at one end of the spring 82 far away from the inner wall of the groove 83, and the arc-shaped latch 81 is slidably clamped in the groove 83. A limiting ring for limiting the ejection of the arc-shaped fixture block 81 is fixedly arranged at the sliding and clamping position of the groove 83 and the arc-shaped fixture block 81, and the end part of the arc-shaped fixture block 81 far away from the groove 83 is hemispherical.

The working principle is as follows: the utility model can change the demonstration angle of the base plate 1 by pulling out the movable supporting column 22 and fastening the movable supporting column 22 by the bolt 9, the anti-skid rubber pad at the bottom of the supporting frame 2 increases the friction force contacted with the ground to prevent the base plate 1 from slipping and toppling when demonstrating the rotating gear 5, after the angle adjustment is finished, the different gears 5 on the outer sleeve of the rotating shaft 6 are meshed, the arc clamping groove 51 in the gear 5 is clamped with the arc clamping block 81, so that the gear is tightly connected with the rotating shaft 6, the operating personnel inserts the rotating shaft 6 into the through hole 4 on the base plate 1, the arc clamping block 81 in the through hole 4 is clamped with the arc groove 71, so that the meshed gear set is well rotatably installed on the base plate 1, the operating personnel sleeves the rotating shaft 6 on the gear 5 as a driving gear on the crank 10 with the crank 10, the cylinder clamping block 101 on the crank 10 is clamped into the cylinder clamping groove 61, then through the bolt 9 fastening installation, the demonstrateing personnel can be through rotating crank 10 this moment to carrying out the gear drive demonstration, when needs are changed different gear sets and are demonstrateed, extract pivot 6 on the base plate 1, change different gears 5 after taking off gear 5 on pivot 6, then the completion can be changed to the repeated above-mentioned step again, easy operation is convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanical transmission demonstration teaching aid convenient to change gear train number, includes base plate (1), its characterized in that: a plurality of circular through holes (4) penetrate through the substrate (1), a clamping component (8) is fixedly mounted in each through hole (4), a bearing (7) is movably clamped in each clamping component (8), the bearing (7) is coaxially rotated and mounted on the rotating shaft (6), a limiting block (11) is fixedly mounted on one side of the rotating shaft (6), a clamping component (8) is movably mounted on one side of the limiting block (11), a cylindrical clamping groove (61) is formed in the end portion of the other side of the rotating shaft (6) in an inwards concave mode, a cylindrical clamping block (101) is fixedly clamped in the cylindrical clamping groove (61) in a coaxially sliding mode, a second bolt hole (102) is formed in the inwards concave mode on one side of the cylindrical clamping block (101), a crank (10) is fixedly mounted on the end portion of one side of the cylindrical clamping block, a gear (5) is sleeved outside the coaxially sliding shaft (6, the supporting rotating shaft (3) is rotatably connected with a supporting frame (2).

2. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 1, characterized in that: support frame (2) are including fixed stay post (21), one side of fixed stay post (21) is rotated and is connected with support pivot (3), opposite side slip joint and has movable support column (22), activity support column (22) indent is equipped with spout (23), slip joint fixed stay post (21) in spout (23), one side that activity support column (22) are close to fixed stay post (21) is run through and is equipped with first bolt hole (24).

3. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 2, characterized in that: bolt (9) are installed to first bolt hole (24) internal rotation, fixed stay post (21) and activity support post (22) slip joint department fixed mounting have the spacing of restriction activity support post (22) pull-out, the tip that fixed stay post (21) was kept away from in activity support post (22) is equipped with the fillet and the fillet outer fixed cover has anti-skidding rubber pad.

4. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 1, characterized in that: gear (5) can be equipped with the not same gear of a plurality of numbers of teeth, diameter, shape but all coaxial through-hole that is equipped with circular and rectangle and piles up, and the rectangle structure department indent of through-hole is equipped with arc draw-in groove (51).

5. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 1, characterized in that: one side of the cylindrical clamping groove (61) penetrates through a circular bolt hole, a bolt (9) is installed in the bolt hole in a rotating mode, and an arc-shaped groove (71) is arranged in one side of the bearing (7) in a concave mode.

6. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 1, characterized in that: joint subassembly (8) include recess (83), recess (83) are the indent respectively and are established on stopper (11) and base plate (1), recess (83) one side inner wall fixed mounting has spring (82), the one end fixed mounting that recess (83) inner wall was kept away from in spring (82) has arc fixture block (81), arc fixture block (81) slip joint is in recess (83).

7. The mechanical transmission demonstration teaching aid convenient for gear group number replacement according to claim 6, characterized in that: a limiting ring for limiting the ejection of the arc-shaped clamping block (81) is fixedly arranged at the sliding and clamping position of the groove (83) and the arc-shaped clamping block (81), and the end part, far away from the groove (83), of the arc-shaped clamping block (81) is hemispherical.