CN109529973B

CN109529973B - Combined experiment table

Info

Publication number: CN109529973B
Application number: CN201910083590.1A
Authority: CN
Inventors: 江子昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2021-01-05
Anticipated expiration: 2039-01-29
Also published as: CN109529973A

Abstract

The invention relates to the technical field of physical experiment tables, in particular to a combined experiment table which comprises a workbench, wherein the workbench consists of two rectangular plates, grooves are formed in the workbench, connecting plates are placed in the grooves, a second pulley is installed at the bottom end, close to an interface, of each groove, and two sliding rails are horizontally installed at one end of the upper surface of the workbench. The position of the driving motor can be adjusted through the sliding rail, the motor base and the limiting pin so as to adapt to experimental materials with different lengths; the area of the workbench can be adjusted through the first pulley, the second pulley and the connecting plate, so that more moving spaces can be provided during experiments; the height of the workbench can be adjusted through the threaded rod and the folding frame so as to adapt to experimenters with different height requirements; the shock absorber and the guide groove can be used for shock absorption and noise reduction in the experimental process, so that noise pollution is prevented; the experiment table can be moved and limited by moving the wheels, the connecting rod and the gears, so that the flexibility of the experiment table is improved.

Description

Combined experiment table

Technical Field

The invention relates to the technical field of physical experiment tables, in particular to a combined experiment table.

Background

At present, a pure bending beam experiment table, a bending and twisting combined experiment table, a cantilever beam experiment table and a stretching and pressing rod experiment table are generally adopted for the material mechanics experiment teaching of all universities and colleges as experiment equipment of basic mechanics projects. Because the experiment subjects that each laboratory bench can carry out are single, the required laboratory bench figure of accomplishing basic mechanics experiment teaching is many, and it is big to occupy the experiment place area, and equipment cost of disposition is high. In addition, the mechanism associated with each laboratory bench has the following problems:

1. the loading device adopts a screw mechanism, the loading stepping precision is low, the load stability is poor, and the loading operating force is large.

2. The tensile test piece adopts the fixed clamping structure, has strict requirements on the concentricity of the upper connecting piece and the lower connecting piece, and has complex processing technology.

3. A test piece of the bending and twisting combined experiment table is fixed by a key groove or welded, the stress of the test piece is greatly different from the theoretical requirement in a chain groove fixing mode, and the error of experimental data is large; the welding fixing mode lacks flexibility, and the test piece paster and the adjustment are inconvenient.

Disclosure of Invention

The invention aims to solve the defects of insufficient working area of a material physical deformation degree experiment table and inaccurate positioning in the experiment in the prior art, and provides a combined experiment table.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a modular laboratory bench, comprises a workbench, the workstation comprises two rectangular plates and the inside recess that has all been seted up, the inside even board of having placed of recess, even board both ends bottom is installed first pulley, the recess is close to the kneck bottom and installs the second pulley, workstation upper surface one end horizontal mounting has two slide rails, slidable mounting has the motor cabinet on the slide rail, the motor cabinet top corresponds vertical spiro union with the slide rail and has spacing pin, one side horizontal mounting that the workstation middle part was kept away from to the motor cabinet has driving motor, driving motor's output shaft runs through the motor cabinet through the trompil and links to each other with the experimental apparatus main part, elevation structure is installed to the workstation bottom.

Preferably, elevation structure includes the threaded rod, the threaded rod both ends are installed on even piece lateral wall through the bearing, just threaded rod one end coaxial line is installed and is rotated the wheel, threaded rod body is last interval spiro union has two screwed pipes that are equipped with the internal screw thread, the screwed pipe rotates the bottom both sides of connecting at the folding leg, folding leg top both sides level spiro union has the bolt, bolt tip cartridge is in the spout, the spout is seted up at workstation both sides middle part.

Preferably, a hand wheel convenient to rotate is coaxially installed at one end, far away from the workbench, of the plug pin.

Preferably, even a shock-absorbing structure is installed on top, shock-absorbing structure includes the shock absorber, the shock absorber bottom is rotated and is connected on even a top, shock absorber top horizontal installation has the horizontal pole, the equal horizontal installation in workstation bottom surface both ends has the guide way, horizontal pole both ends slidable mounting is in the guide way.

Preferably, even the piece bottom is installed and is convenient for remove the wheel, it is equipped with limit structure to remove wheel both sides.

Preferably, limit structure includes the gear, the gear is connected with removal wheel pivot coaxial line, it is connected with curved connecting rod to rotate on the even piece lateral wall, a plurality of sawtooth are installed to connecting rod one side, the sawtooth meshing is on the gear.

Preferably, rotating-structure is installed to one side that driving motor was kept away from to workstation upper surface, rotating-structure includes bolt and base, the base level sets up and has seted up the T-slot in the bottom, the bolt passes through the vertical installation on the workstation of bearing frame, just vertical spiro union has the lead screw in the bolt, lead screw top horizontal installation has the disc, disc swing joint is at the T-slot.

Preferably, surface mounting has fixture on the base, fixture is including linking the board, link the board and pass through screw horizontal installation in base upper surface both sides, it has the lead screw to link the vertical cartridge of board tip through the trompil, the equal slidable mounting in both ends has the splint of U-shaped about the lead screw, just lead screw both ends tip spiro union has the screw cap.

Preferably, the top end of the lead screw is horizontally inserted with a rotating handle through an opening.

The combined experiment table provided by the invention has the beneficial effects that: the combined type experiment table can adjust the position of the driving motor through the sliding rail, the motor base and the limiting pin so as to adapt to experiment materials with different lengths; the area of the workbench can be adjusted through the first pulley, the second pulley and the connecting plate, so that more moving spaces can be provided during experiments; the height of the workbench can be adjusted through the threaded rod and the folding frame so as to adapt to experimenters with different height requirements; the shock absorber and the guide groove can be used for shock absorption and noise reduction in the experimental process, so that noise pollution is prevented; the experiment table can be moved and limited by moving the wheels, the connecting rod and the gears, so that the flexibility of the experiment table is improved.

Drawings

Fig. 1 is a front view of a combined experimental bench according to the present invention.

Fig. 2 is a side view of a combined experimental bench according to the present invention.

Fig. 3 is a partially enlarged view of a combined experimental bench according to the present invention.

Fig. 4 is an enlarged view of a clamping structure of a combined-type experiment table provided by the invention.

Fig. 5 is an enlarged view of a combined experimental bench according to the present invention at a.

Fig. 6 is an enlarged view of a combined experimental bench according to the present invention at position B.

In the figure: the device comprises a workbench 1, a slide rail 2, a motor base 3, a driving motor 4, a limit pin 5, a limit structure 6, a connecting rod 601, a gear 602, a sawtooth 603, a shock absorber 7, a guide groove 8, a clamping mechanism 9, a base 901, a disc 902, a screw rod 903, a bolt 904, a connecting plate 905, a screw rod 906, a clamping plate 907, a rotating handle 908, a screw cap 909, a T-shaped groove 910, a threaded rod 10, a threaded pipe 11, a folding frame 12, a rotating wheel 13, a moving wheel 14, a groove 15, a first pulley 16, a connecting plate 17, a second pulley 18, a connecting block 19, a bolt 20 and a sliding groove 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, a combined experiment table, including workstation 1, workstation 1 comprises two rectangular plates and inside recess 15 has all been seted up, link board 17 has been placed inside recess 15, link board 17 both ends bottom and install first pulley 16, recess 15 is close to the kneck bottom and installs second pulley 18, 1 upper surface one end horizontal mounting of workstation has two slide rails 2, slidable mounting has motor cabinet 3 on

slide rail

2, 3 tops of motor cabinet correspond vertical spiro union with slide rail 2 and have spacing pin 5, one side horizontal mounting that workstation 1 middle part was kept away from to motor cabinet 1 has driving motor 4, driving motor 4's output shaft runs through motor cabinet 3 through the trompil and links to each other with the experimental apparatus main part, elevation structure is installed to 1 bottom of workstation. The connecting plate 17 extends out by stretching the workbench 1 to two ends, the stretching process is easier due to the first pulley 16 and the second pulley 18, when the two ends of the connecting plate 17 are close to the tail end, the first pulley 16 is extruded by the second pulley 18, the first pulley 16 is erected on the second pulley 18 by applying force slightly, and the notches at the two ends of the connecting plate 17 are clamped on the workbench 1, so that the upper surfaces of the workbench 1 and the connecting plate 17 are positioned on the same horizontal plane; moving the motor base 3 along the slide rail 2 can change the distance between the output shaft of the driving motor 4 and the experimental device main body, and after the position is determined, the limiting pin 5 is rotated and locked, so that the driving motor 4 cannot shake randomly during the experiment.

Elevation structure includes threaded rod 10, threaded rod 10 both ends are passed through the bearing and are installed on even 19 lateral walls, and threaded rod 10 one end coaxial line installs and rotates wheel 13, threaded rod 10 pole body is gone up the interval spiro union and is equipped with two screwed pipes 11 of internal screw thread, screwed pipe 11 rotates the bottom both sides of connecting at folding leg 12, folding leg 12 top both sides horizontal spiro union has bolt 20, bolt 20 tip cartridge is in spout 21, spout 21 is seted up at 1 both sides middle part of workstation, the hand wheel of the rotation of being convenient for is installed to the one end coaxial line that workstation 1 was kept away from to bolt 20. Rotating threaded rod 10 through rotating wheel 13 can be lighter, and when threaded rod 10 was rotatory, screwed pipe 11 can be along threaded rod 10 pole body horizontal migration, and screwed pipe 11 removes the maximum height that can change folding leg 12, just so can adjust workstation 1 highly, and convenient the taking off of spiro union bolt 20 is overhauld.

Even 19 tops of block are installed shock-absorbing structure, and shock-absorbing structure includes

shock absorber

7, and 7 bottoms of shock absorber are rotated and are connected on even 19 tops of block, and 7 top horizontal mounting of shock absorber have a horizontal pole, and the equal horizontal mounting in workstation 1 bottom surface both ends has guide way 8, and horizontal pole both ends slidable mounting is in guide way 8, and the removal of being convenient for to remove wheel 14 is installed to even 19 bottoms of block, and removal wheel 14 both sides are equipped with limit structure 6. Because the characteristic of laboratory bench itself, the deformation volume that driving motor 4 physics changed the material can produce strong vibrations during the experiment, and shock absorber 7 can effectively reduce the transmission of vibrations, and when adjustment laboratory bench height, the horizontal pole can remove along guide way 8 to change the vertical height of shock absorber 7, remove that wheel 14 can conveniently relax and remove the laboratory bench.

The limiting structure 6 comprises a gear 602, the gear 602 is coaxially connected with the rotating shaft of the moving wheel 14, an arc-shaped connecting rod 601 is rotatably connected to the side wall of the connecting block 19, a plurality of saw teeth 603 are mounted on one side of the connecting rod 601, and the saw teeth 603 are engaged on the gear 602. After the experiment table is moved, the connecting rod 601 is rotated, so that the saw teeth 603 are meshed with the gear 602, the moving wheel 14 is locked, the experiment table is prevented from sliding randomly during working, and similarly, the saw teeth 603 are opened when the moving wheel 14 needs to work, and the moving wheel 14 can roll.

Rotating-structure is installed to one side that driving motor 4 was kept away from to workstation 1 upper surface, and rotating-structure includes bolt 904 and base 901, and the T-slot 910 has been seted up to base 901 level setting and in the bottom, and bolt 904 passes through the vertical installation on workstation 1 of bearing frame, and vertical spiro union has lead screw 903 in the bolt 904, and lead screw 903 top horizontal installation has disc 902, and disc 902 swing joint is in T-slot 910. Turning and opening the bolt 904 allows the disc 902 to rotate within the T-shaped slot 910, which angularly positions the material, and after adjustment is complete, turning the bolt 904 again, allowing the disc 902 to fit tightly within the T-shaped slot 910, preventing the experiment itself from rotating.

The upper surface of the base 901 is provided with a clamping mechanism 9, the clamping mechanism 9 comprises a connecting plate 905, the connecting plate 905 is horizontally arranged on two sides of the upper surface of the base 901 through screws, the end part of the connecting plate 905 is vertically inserted with a lead screw 906 through an opening, the upper end and the lower end of the lead screw 906 are respectively provided with a U-shaped clamp plate 907 in a sliding manner, the end parts of two ends of the lead screw 906 are screwed with screw caps 909, and the top end of the lead screw 906 is horizontally inserted with a rotating handle 908 through the. The experimental material is put between two clamping plates 907, then the screw 906 is rotated to enable screw caps 909 at two ends to lock the clamping plates 907, the experimental material is prevented from shifting, and a rotating handle 908 at the top end of the screw 906 can enable the screw 906 to be rotated more easily.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A modular laboratory bench, includes workstation (1), its characterized in that: the workbench (1) consists of two rectangular plates, the insides of the rectangular plates are provided with grooves (15), a connecting plate (17) is arranged in the groove (15), first pulleys (16) are arranged at the bottoms of the two ends of the connecting plate (17), a second pulley (18) is arranged at the bottom end of the groove (15) close to the joint, two sliding rails (2) are horizontally arranged at one end of the upper surface of the workbench (1), a motor base (3) is slidably mounted on the sliding rail (2), a limiting pin (5) is vertically screwed at the top end of the motor base (3) corresponding to the sliding rail (2), a driving motor (4) is horizontally arranged on one side of the motor base (1) far away from the middle part of the workbench (1), an output shaft of the driving motor (4) penetrates through the motor base (3) through an opening and is connected with the experiment device main body, and a lifting structure is installed at the bottom end of the workbench (1); the lifting structure comprises a threaded rod (10), two ends of the threaded rod (10) are mounted on the side wall of a connecting block (19) through bearings, a rotating wheel (13) is coaxially mounted at one end of the threaded rod (10), two threaded pipes (11) with internal threads are screwed on the rod body of the threaded rod (10) at intervals, the threaded pipes (11) are rotatably connected to two sides of the bottom end of a folding rack (12), bolts (20) are horizontally screwed on two sides of the top end of the folding rack (12), the end parts of the bolts (20) are inserted into sliding grooves (21), and the sliding grooves (21) are formed in the middles of two sides of a workbench (1); a hand wheel which is convenient to rotate is coaxially arranged at one end of the bolt (20) far away from the workbench (1); the top end of the connecting block (19) is provided with a damping structure, the damping structure comprises a shock absorber (7), the bottom end of the shock absorber (7) is rotatably connected to the top end of the connecting block (19), the top end of the shock absorber (7) is horizontally provided with a cross rod, two ends of the bottom surface of the workbench (1) are both horizontally provided with guide grooves (8), and two ends of the cross rod are slidably arranged in the guide grooves (8); the bottom end of the connecting block (19) is provided with a moving wheel (14) which is convenient to move, and two sides of the moving wheel (14) are provided with limiting structures (6); the limiting structure (6) comprises a gear (602), the gear (602) is coaxially connected with a rotating shaft of the moving wheel (14), an arc-shaped connecting rod (601) is rotatably connected to the side wall of the connecting block (19), a plurality of saw teeth (603) are mounted on one side of the connecting rod (601), and the saw teeth (603) are meshed with the gear (602); a rotating structure is mounted on one side, far away from the driving motor (4), of the upper surface of the workbench (1), and comprises a bolt (904) and a base (901), the base (901) is horizontally arranged, a T-shaped groove (910) is formed in the bottom end of the base, the bolt (904) is vertically mounted on the workbench (1) through a bearing seat, a screw rod (903) is vertically screwed in the bolt (904), a disc (902) is horizontally mounted at the top end of the screw rod (903), and the disc (902) is movably connected in the T-shaped groove (910); the clamping mechanism (9) is mounted on the upper surface of the base (901), the clamping mechanism (9) comprises connecting plates (905), the connecting plates (905) are horizontally mounted on two sides of the upper surface of the base (901) through screws, a lead screw (906) is vertically inserted into the end portion of each connecting plate (905) through an opening, U-shaped clamping plates (907) are slidably mounted at the upper end and the lower end of the lead screw (906), and screw caps (909) are screwed at the end portions of the two ends of the lead screw (906); the top end of the lead screw (906) is horizontally inserted with a rotating handle (908) through the opening.