CN209859416U

CN209859416U - Adjustable track for mechanics experiments

Info

Publication number: CN209859416U
Application number: CN201920281714.2U
Authority: CN
Inventors: 姚惠伶
Original assignee: Guilin Normal College
Current assignee: Guilin Normal College
Priority date: 2019-03-02
Filing date: 2019-03-02
Publication date: 2019-12-27
Anticipated expiration: 2029-03-02

Abstract

The utility model provides an adjustable track for mechanics experiments, including platen, layer board, rectangular channel one, air track, slider, photoelectric switch, rectangular channel two, tappet, lead screw, movable block and ball nut seat, air track installs at the layer board upside, air track right side below is rotated with the layer board through the hinge and is connected, rectangular channel one has been seted up to the layer board up end, the lead screw sets up inside rectangular channel one, the lead screw left end passes layer board left end face and extends to the layer board left side, the equal suit of movable block and ball nut seat is on the lead screw, rectangular channel two has been seted up to air track lower extreme face, the tappet sets up inside rectangular channel two, the slider is installed in air track up end right part, and this design has realized carrying out the function of adjusting air track inclination.

Description

Adjustable track for mechanics experiments

Technical Field

The utility model relates to an adjustable track for mechanics experiments belongs to the teaching equipment field.

Background

The air-cushion guide rail is a modern mechanical experimental instrument, compressed air is sent into the inner cavity of the guide rail by using a small air source, the air is sprayed out from small holes on the surface of the guide rail, a thin air cushion layer is formed between the surface of the guide rail and the inner surface of the slider, the slider floats on the air cushion layer and is separated from the contact with the rail surface, therefore, the air cushion guide rail can do approximate resistance-free linear motion on the rail surface, the error caused by friction force in the conventional mechanical experiment is greatly reduced, the experimental result is close to a theoretical value, various mechanical physical quantities are measured and the mechanical law is verified by combining a dotting timer, a photoelectric gate, a flash photography and the like, the conventional air cushion guide rail does not have the function of adjusting the angle generally and cannot meet the function required by the verification of the mechanical law, and the prior angle adjusting structure can only adjust a plurality of fixed angles and can not meet the precision requirement of teaching experiments.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an adjustable track is used in mechanics experiment to solve the problem that proposes in the above-mentioned background art, the utility model discloses convenient to use has realized carrying out the function of adjusting air track inclination, and structural stability is good, and angle adjustable range is big.

In order to achieve the above purpose, the present invention is realized by the following technical solution: an adjustable track for mechanics experiments comprises a bedplate, a first support rod, a hollow sleeve, a supporting plate, a first rectangular groove, an air cushion guide rail, a sliding block, a photoelectric switch, a second rectangular groove, a tappet rod, a screw rod, a hook code, a second support rod, a moving block, a ball nut seat, a fixed pulley and a pull rope, wherein the first support rod is respectively welded and fixed at the left part and the right part of the upper end surface of the bedplate, the hollow sleeve is sleeved on the first support rod, the second support rod is arranged in the hollow sleeve, the second support rod is arranged at the upper side of the first support rod, the second support rod is respectively fixed at the left part and the right part of the lower end surface of the supporting plate, the second support rod is connected with the first support rod through the hollow sleeve, the air cushion guide rail is arranged at the upper side of the supporting plate, the, the left end of the screw rod penetrates through the left end face of the supporting plate and extends leftwards to the left side of the supporting plate, the moving block and the ball nut seat are sleeved on the screw rod, the ball nut seat is fixed at the right end of the moving block, the lower end face of the air-cushion guide rail is provided with a rectangular groove II, the rectangular groove II is arranged at the upper side of the rectangular groove I, the tappet is arranged in the rectangular groove II and extends downwards to the inside of the rectangular groove I, the left end of the tappet is rotationally connected with the air-cushion guide rail through a rotating shaft, the right end of the tappet is rotationally connected with the moving block through a hinge, the slider is arranged at the right part of the upper end face of the air-cushion guide rail, the photoelectric switches are respectively fixed at the left part and the right part of the upper end face of the air-cushion guide rail, the fixed pulley is, the other end of the pull rope is fixed at the left end of the sliding block, and the hook code is connected with the sliding block through the pull rope.

Furthermore, a rotary table is fixed at the left end of the screw rod, the rotary table is arranged on the left side of the supporting plate, and a handle is welded and fixed at the left end of the rotary table.

Furthermore, an air pipe is installed at the right end of the air cushion guide rail and connected with an external air pump.

Furthermore, the number of the hollow sleeve and the number of the supporting rods are two, threads are machined on the annular side face of each supporting rod and the inner wall of the hollow sleeve, the hollow sleeve is connected with the supporting rod I through the threads, and the hollow sleeve is connected with the supporting rod II through a bearing.

The utility model has the advantages that: the utility model discloses an adjustable track for mechanics experiments, the utility model discloses an add platen, bracing piece one, the cavity sleeve, the layer board, rectangular channel one, air cushion guide, the slider, photoelectric switch, rectangular channel two, the tappet, the lead screw, the hook sign indicating number, bracing piece two, the movable block, ball nut seat, fixed pulley and stay cord, this design has realized carrying out the function of adjusting to air cushion guide inclination, the function that current air cushion guide generally does not have angle regulation has been solved, can't satisfy the mechanics law and verify required function, and current angle modulation structure only can adjust several fixed angles, also can't satisfy the problem of the required precision of teaching experiment.

Because of having added carousel and handle, this design is convenient for rotate the lead screw, because of having added trachea and air pump, this design provides the work air supply for air cushion rail, because of having added screw thread and bearing, this design is convenient for adjust the levelness of layer board, the utility model discloses convenient to use has realized carrying out the function of adjusting to air cushion rail inclination, and structural stability is good, and angle adjustable range is big.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of an adjustable rail for mechanics experiments according to the present invention;

fig. 2 is an enlarged schematic view of the position B in the adjustable track for mechanics experiments of the present invention;

fig. 3 is an enlarged schematic view of a position a in the adjustable track for mechanics experiments of the present invention;

in the figure: 1-bedplate, 2-supporting rod I, 3-hollow sleeve, 4-supporting plate, 5-rectangular groove I, 6-air cushion guide rail, 7-sliding block, 8-photoelectric switch, 9-rectangular groove II, 10-tappet, 11-screw rod, 12-hook code, 13-supporting rod II, 14-moving block, 15-ball nut seat, 16-fixed pulley and 17-pull rope.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: an adjustable track for mechanics experiments comprises a bedplate 1, a first support rod 2, a hollow sleeve 3, a supporting plate 4, a first rectangular groove 5, an air cushion guide rail 6, a slide block 7, a photoelectric switch 8, a second rectangular groove 9, a tappet 10, a lead screw 11, a hook code 12, a second support rod 13, a moving block 14, a ball nut seat 15, a fixed pulley 16 and a pull rope 17, wherein the first support rod 2 is respectively welded and fixed at the left part and the right part of the upper end face of the bedplate 1, the hollow sleeve 3 is sleeved on the first support rod 2, the second support rod 13 is installed inside the hollow sleeve 3, the second support rod 13 is arranged at the upper side of the first support rod 2, the second support rod 13 is respectively fixed at the left part and the right part of the lower end face of the supporting plate 4, the second support rod 13 is connected with the first support rod 2 through the hollow sleeve 3, the air cushion guide rail 6 is, the lead screw 11 is arranged in a first rectangular groove 5, the left end of the lead screw 11 penetrates through the left end face of the supporting plate 4 and extends to the left side of the supporting plate 4 leftwards, a moving block 14 and a ball nut seat 15 are sleeved on the lead screw 11, the ball nut seat 15 is fixed at the right end of the moving block 14, a second rectangular groove 9 is arranged on the lower end face of the air-cushion guide rail 6, the second rectangular groove 9 is arranged on the upper side of the first rectangular groove 5, a tappet 10 is arranged in the second rectangular groove 9, the tappet 10 extends downwards to the inside of the first rectangular groove 5, the left end of the tappet 10 is rotatably connected with the air-cushion guide rail 6 through a rotating shaft, the right end of the tappet 10 is rotatably connected with the moving block 14 through a hinge, a slider 7 is arranged on the right part of the upper end face of the air-cushion guide rail 6, photoelectric switches 8 are respectively fixed on the left and right parts of, one end of a pull rope 17 is fixed at the upper end of the hook code 12, the other end of the pull rope 17 is fixed at the left end of the sliding block 7, the hook code 12 is connected with the sliding block 7 through the pull rope 17, when the angle of the air-cushion guide rail 6 needs to be adjusted, a user holds the handle and the left end of the air-cushion guide rail 6 at the same time, then the user lifts the left end of the air-cushion guide rail 6 upwards and shakes the handle clockwise, the handle shakes clockwise to drive the turntable to rotate clockwise, the turntable rotates clockwise to drive the screw rod 11 to rotate clockwise, the screw rod 11 rotates clockwise to drive the ball nut seat 15 to move leftward, the ball nut seat 15 moves leftward to drive the moving block 14 to move leftward, the moving block 14 moves leftward to enable the left end of the tappet 10 to rotate clockwise around the moving block 14, the tappet 10 rotates clockwise to drive the air-cushion guide rail, thereby realizing the function of adjusting the inclination angle of the air cushion guide rail 6.

11 left ends of lead screw are fixed with the carousel, and the carousel setting is in 4 left sides of layer boards, and carousel left end welded fastening has the handle, and then drives the carousel and rotate through shaking the handle to realized carrying out the pivoted function to lead screw 11.

The right end of the air cushion guide rail 6 is provided with an air pipe which is connected with an external air pump.

Hollow sleeve 3 and bracing piece 2 quantity are two, and two bracing pieces 2 annular side and 3 inner walls of hollow sleeve are all processed threadedly, and hollow sleeve 3 is connected with bracing piece 2 through the screw thread, and hollow sleeve 3 is connected with bracing piece two 13 through the bearing, through clockwise rotation hollow sleeve 3, and clockwise rotation hollow sleeve 3 moves down under the effect of screw thread to the function of adjusting 4 levelness of layer board has been realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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 an adjustable track for mechanics experiments, includes platen, bracing piece one, cavity sleeve, layer board, rectangular channel one, air track, slider, photoelectric switch, rectangular channel two, tappet, lead screw, hook sign indicating number, bracing piece two, movable block, ball nut seat, fixed pulley and stay cord, its characterized in that: the first support rod is respectively welded and fixed at the left and right parts of the upper end surface of the bedplate, the hollow sleeve is sleeved on the first support rod, the second support rod is arranged in the hollow sleeve, the second support rod is arranged at the upper side of the first support rod, the second support rod is respectively fixed at the left and right parts of the lower end surface of the supporting plate, the second support rod is connected with the first support rod through the hollow sleeve, the air-cushion guide rail is arranged at the upper side of the supporting plate, the right lower part of the air-cushion guide rail is rotatably connected with the supporting plate through a hinge, the upper end surface of the supporting plate is provided with a first rectangular groove, the screw rod is arranged in the first rectangular groove, the left end of the screw rod penetrates through the left end surface of the supporting plate and extends to the left side of the supporting plate, the moving block and a ball nut seat, the tappet sets up inside rectangular channel two, inside tappet downwardly extending rectangular channel one, the tappet left end rotates through pivot and air cushion guide rail to be connected, the tappet right-hand member rotates through hinge and movable block to be connected, the slider is installed in air cushion guide rail up end right part, photoelectric switch fixes respectively in air cushion guide rail up end left and right sides portion, photoelectric switch sets up in the slider left side, the fixed pulley passes through the bolt fastening at air cushion guide rail left end, the hook sign indicating number sets up at the fixed pulley downside, stay cord one end is fixed in the hook sign indicating number upper end, the stay cord other end is fixed at the slider left end, be connected through the stay cord between hook sign indicating number and the slider.

2. The adjustable rail for mechanics experiments according to claim 1, characterized in that: the left end of the screw rod is fixed with a rotary table, the rotary table is arranged on the left side of the supporting plate, and the left end of the rotary table is fixedly welded with a handle.

3. The adjustable rail for mechanics experiments according to claim 1, characterized in that: an air pipe is installed at the right end of the air cushion guide rail and connected with an external air pump.

4. The adjustable rail for mechanics experiments according to claim 1, characterized in that: the supporting rod comprises a supporting rod body, a hollow sleeve and supporting rods, wherein the number of the hollow sleeve and the number of the supporting rods are two, threads are machined on the annular side face of each supporting rod and the inner wall of the hollow sleeve, the hollow sleeve is connected with the supporting rod body through the threads, and the hollow sleeve is connected with the supporting rod body through a bearing.