CN207095833U

CN207095833U - A kind of mechanical structure test platform

Info

Publication number: CN207095833U
Application number: CN201720819756.8U
Authority: CN
Inventors: 于尚洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-07
Filing date: 2017-07-07
Publication date: 2018-03-13
Anticipated expiration: 2027-07-07

Abstract

The utility model discloses a kind of mechanical structure test platform, including bottom plate and slide plate, the slide plate slides are connected on bottom plate, roller is provided between the slide plate and bottom plate, the roller is provided with connecting shaft, one end of the connecting shaft is fixedly connected on slide plate, the side of the bottom plate is provided with fixing axle, one end of the fixing axle is socketed with bearing holder (housing, cover), ball is connected with the bearing holder (housing, cover), the opposite side of the bottom plate slidably connects rotating shaft, and belt is socketed between the rotating shaft and fixing axle, and the belt is socketed with bearing holder (housing, cover).The utility model operates with simply, cooperated by fixing axle, bearing holder (housing, cover), belt, bottom plate, slide plate, head rod and the second connecting rod, all constrained types in mechanics course can be realized, readily appreciate the relation between Mechanics Calculation sketch and engineering structure, can be with direct feel, it is abstract the problem of visualize, reduce learning difficulty, provide a kind of mechanical structure test platform for user.

Description

A kind of mechanical structure test platform

Technical field

It the utility model is related to technical field of test equipment, more particularly to a kind of mechanical structure test platform.

Background technology

Restraining force in mechanical structure refers to that object is limited by certain field force (power only determined by locus is field force) The phenomenon of system, limits the position of object and moving condition is referred to as constraint suffered by object, realizes that the object of these constraintss claims For obligatory point, the object of the condition that suffers restraints limitation is called restrained body, and constraint is called restraining force to the active force of object, pressed Custom, obligatory point is referred to as constrained, restrained body is referred to as object, restraining force is divided into soft constraint, smooth contact surface Constraint, cylindrical hinge constraint and fixing end constrain, and the performance in curricula to restraining force, use single structure chart Sketch, the utilization in engineering structure is simply described in simple language, statement is abstract, and the introduction of each restraining force It is separated from each other, without can intuitively experience a binding equipment in existing Physical Experiment equipment, can not passes through Actual regulation and operation embody restraining force, are unfavorable for understanding and apply, are easy to learn and understand therefore, we design one kind Mechanical structure test platform.

Utility model content

The purpose of this utility model is and a kind of mechanical structure examination proposed in order to solve shortcoming present in prior art Test platform.

To achieve these goals, the utility model employs following technical scheme：

A kind of mechanical structure test platform, including bottom plate and slide plate, the slide plate slides are connected on bottom plate, the slide plate Roller is provided between bottom plate, the roller is provided with connecting shaft, and one end of the connecting shaft is fixedly connected on slide plate, described The side of bottom plate is provided with fixing axle, and one end of the fixing axle is socketed with bearing holder (housing, cover), ball is connected with the bearing holder (housing, cover), described The opposite side of bottom plate slidably connects rotating shaft, and belt, the belt and bearing holder (housing, cover) set are socketed between the rotating shaft and fixing axle Connect, the side of the slide plate is fixedly connected with spin bearing, and connected ball is connected with the spin bearing, is consolidated in the connected ball Surely it is connected with the second connecting rod, the side relative with slide plate is fixedly connected with hold-down support, the fixed branch in the fixing axle Head rod is rotatably connected on seat, the head rod is rotatablely connected with the second connecting rod by latch, the slide plate Opposite side be provided with spring housing, the spring housing is provided with spring groove, and the spring housing is socketed with slide-bar, and the slide-bar, which slides, to be connected It is connected on spring groove, the side of the slide-bar and rotating shaft offsets.

Preferably, spring is provided with the spring groove, one end of the spring is fixedly connected with slide-bar, and the slide-bar is remote One end of spring is dome-type.

Preferably, the spin bearing is provided with spin groove, and the spin bearing is provided with opening, the connected ball clamping On spin groove, second connecting rod passes through opening.

Preferably, one end of the rotating shaft set lace is provided with belt shaft, and the belt shaft is connected with axis of rotation, described Belt is socketed on belt shaft.

Preferably, the material of the belt is rubber.

Preferably, one end of the rotating shaft is fixedly connected with slide bar, and the bottom plate is provided with chute, the slide bar and chute It is slidably connected, the one end of the slide bar away from rotating shaft is provided with trapezoidal slide block, and the chute is provided with corresponding with trapezoidal slide block more Individual trapezoidal neck.

In the utility model, when user uses the utility model, by mobile shaft, rotating shaft will be slided on bottom plate, Rotating shaft is moved to the direction of slide plate, and because rotating shaft is cylinder, slide-bar can omit with rotating shaft in contact position frictional force very little to be disregarded, Motion of the restrained object slide-bar along contact surface common normal direction can only be limited, belt is socketed in rotating shaft and bearing holder (housing, cover), due to Belt has certain elasticity, and rotating shaft and bearing holder (housing, cover) are solely subjected to pulling force, are not subject to pressure, embody soft constraint, belt can band Dynamic bearing moves in the presence of being enclosed on ball, and ball constrains with bearing holder (housing, cover) contact point for smooth hinge, and smooth hinge constraint connects Frictional force can be ignored at contacting surface, and so as to show smooth contact surface constraint, fixing axle is fixedly installed on bottom plate, limited Possible motion in plane, fixing end constraint is shown as, the mobile of slide-bar can be such that slide plate is moved on bottom plate, be set below slide plate Roller, roller slides on bottom plate, the movement of slide plate, will shorten the distance between slide plate and fixing axle, the second connecting rod It will reduce with the angle of head rod, the second connecting rod and head rod are in the limitation for plugging latch in the above and work With lower rotation, its latch embodies pact of the middle hinge in cylindrical hinge constraint to object to the second connecting rod and head rod Beam force, position is by latch center, and perpendicular to pin axis, direction is indefinite, and one end of head rod turns on hold-down support Dynamic, embodiment is restraining force of the middle hinge to object, is the restraining force for belonging to fixed hinge bearing in cylindrical hinge constraint, the Two connecting rods drive connected ball to be rotated on spin bearing, and rotating range is not in one plane, to be embodied in moveable hinge The restraining force of chain bearing, hinges bearing be under the jurisdiction of cylindrical hinge constraint, if individually the connecting rod of comprehensive analysis second and Slide plate, head rod, disregard deadweight, both ends are connected with the mode of hinge with surrounding objects, and not by the bar of other external force, The constraint of two power bars is demonstrated by, the restraining force of two power bars must be along the line of rod member both ends hinge centres, and it is indefinite to point to, the constraint of two power bars Equally be under the jurisdiction of cylindrical hinge constraint, so far, all restraining forces show on the apparatus, and slide plate form one can be The platform arbitrarily moved on bottom plate, the platform can be moved in engineering structure construction, and the device operates with simply, leads to Cross fixing axle, bearing holder (housing, cover), belt, bottom plate, slide plate, head rod and the second connecting rod to cooperate, mechanics courses can be realized All constrained types in journey, readily appreciate the relation between Mechanics Calculation sketch and engineering structure, can with direct feel, It is abstract the problem of visualize, reduce learning difficulty, provide a kind of mechanical structure test platform for user.

Brief description of the drawings

Fig. 1 be the utility model proposes a kind of mechanical structure test platform overlooking the structure diagram.

Fig. 2 is the structural representation at A in Fig. 1.

Fig. 3 be the utility model proposes a kind of mechanical structure test platform side structure schematic diagram.

In figure：1 fixing axle, 2 bearing holder (housing, cover)s, 3 balls, 4 belts, 5 bottom plates, 6 rotating shafts, 7 slide-bars, 8 spring housings, 9 slide plates, 10 connect Receive, 11 hold-down supports, 12 head rods, 13 latches, 14 second connecting rods, 15 spin bearings.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.

Reference picture 1-3, a kind of mechanical structure test platform, including bottom plate 5 and slide plate 9, slide plate 9 are slidably connected at bottom plate 5 On, roller is provided between slide plate 9 and bottom plate 5, roller is provided with connecting shaft, and one end of connecting shaft is fixedly connected on slide plate 9, bottom The side of plate 5 is provided with fixing axle 1, and one end of fixing axle 1 is socketed with bearing holder (housing, cover) 2, ball 3 is connected with bearing holder (housing, cover) 2, bottom plate 5 Opposite side slidably connects rotating shaft 6, and belt 4 is socketed between rotating shaft 6 and fixing axle 1, and belt 4 is socketed with bearing holder (housing, cover) 2, slide plate 9 Side be fixedly connected with spin bearing 15, connected ball 10 is connected with spin bearing 15, is fixedly connected with connected ball 10 Two connecting rods 14, spin bearing 15 are provided with spin groove, and spin bearing 15 is provided with opening, and connected ball 10 is connected to spin groove On, the second connecting rod 14 passes through opening.Second connecting rod 14 drives connected ball 10 freely to be rotated on spin groove, is for work Dynamic rocker bar bearing, embodies a kind of cylindrical hinge constraint, and the contact surfaces of two structures is cambered surface, active force along cambered surface center position, The side relative with slide plate 9 is fixedly connected with hold-down support 11 in fixing axle 1, and the first connection is rotatably connected on hold-down support 11 Bar 12, head rod 12 are rotatablely connected with the second connecting rod 14 by latch 13, and the opposite side of slide plate 9 is provided with spring housing 8, bullet Spring set 8 is provided with spring groove, and spring housing 8 is socketed with slide-bar 7, and slide-bar 7 is slidably connected on spring groove, slide-bar 7 and the one of rotating shaft 6 Side offsets, and is provided with spring in spring groove, one end of spring is fixedly connected with slide-bar 7, and the one end of slide-bar 7 away from spring is hemisphere Type, because one end of slide-bar 7 is dome-type, rotating shaft 6 is cylindrical type, slide-bar 7 and the active force of the contact position of rotating shaft 6, is embodied Smooth contact surface constrains, and one end of 6 sets of laces 4 of rotating shaft is provided with belt shaft, and belt shaft is rotatablely connected with rotating shaft 6, and the one of rotating shaft 6 End is fixedly connected with slide bar, and bottom plate 5 is provided with chute, and slide bar is connected with slide, and the one end of slide bar away from rotating shaft 6 is provided with ladder Shape sliding block, chute are provided with multiple trapezoidal necks corresponding with trapezoidal slide block, to show the soft constraint of the embodiment of belt 4, receive Tight belt 4, belt 4 will drive rotating shaft 6 to be moved on bottom plate 5, and the countershaft 6 of belt 4 shows as pulling force, no pressure effect, belt 4 It is socketed on belt shaft, belt 4 can drive belt shaft to rotate, and the counter ball 3 of bearing holder (housing, cover) 2 rotates, now ball 3 and bearing holder (housing, cover) 2 Between embody smooth hinge constraint, because rotating shaft 6 is to be slidably connected with bottom plate 5, it is impossible to rotate, therefore belt 4 is moved through Belt shaft realizes that the material of belt 4 is rubber, when moving horizontally the rotating shaft 6 at belt shaft, the total of 4 countershaft of belt 6 There is pulling force, only by pulling force, be not stressed, show as soft constraint.

In the utility model, when user uses the utility model, by mobile shaft 6, rotating shaft 6 will be slided on bottom plate 5 Dynamic, rotating shaft 6 is moved to the direction of slide plate 9, due to rotating shaft 6 be cylinder, slide-bar 7 and rotating shaft 6 can be with contact position frictional force very little Omit and disregard, motion of the restrained object slide-bar 7 along contact surface common normal direction can only be limited, belt 4 is socketed in rotating shaft 6 and axle On bearing sleeve 2, because belt 4 has certain elasticity, rotating shaft 6 and bearing holder (housing, cover) 2 are solely subjected to pulling force, are not subject to pressure, embody softness Constraint, belt 4 can drive bearing holder (housing, cover) 2 to be moved in the presence of ball 3, ball 3 and the contact point of bearing holder (housing, cover) 2 be smooth hinge about Beam, frictional force can be ignored at the contact surface of smooth hinge constraint, and so as to show smooth contact surface constraint, fixing axle 1 is solid Surely it is arranged on bottom plate 5, limits possible motion in plane, show as fixing end constraint, the mobile of slide-bar 7 can makes slide plate 9 Moved on bottom plate, the roller that the lower section of slide plate 9 is set, roller slides on bottom plate 5, the movement of slide plate 9, will make slide plate 9 with consolidating The distance between dead axle 1 shortens, and the angle of the second connecting rod 14 and head rod 12 will reduce, the second connecting rod 14 and first Connecting rod 12 rotates under the limitation and effect for plugging latch in the above, and its latch 13 connects to the second connecting rod 14 and first Extension bar 12 embody in cylindrical hinge constraint among hinge to the restraining force of object, position by the center of latch 13, perpendicular to Pin axis, direction is indefinite, and one end of head rod 12 rotates on hold-down support 11, and embodiment is pact of the middle hinge to object Beam force, is the restraining force for belonging to fixed hinge bearing in cylindrical hinge constraint, and the second connecting rod 14 drives connected ball 10 rolling Rotated on tumbler bearing 15, and rotating range is not the restraining force for being in one plane embodied in hinges bearing, moveable hinge Chain bearing is under the jurisdiction of cylindrical hinge constraint, if individually the second connecting rod of comprehensive analysis 14 and slide plate 9, head rod 12, Disregard deadweight, both ends are connected with the mode of hinge with surrounding objects, and are not demonstrated by two power bars about by the bar of other external force Beam, the restraining force of two power bars must be along the line of rod member both ends hinge centres, and it is indefinite to point to, and the constraint of two power bars is equally under the jurisdiction of cylinder Shape hinge restraining, so far, all restraining forces show on the apparatus, and slide plate 9 forms one and can arbitrarily moved on bottom plate 5 Dynamic platform, the platform can be moved in engineering structure construction.

It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model Within enclosing.

Claims

1. a kind of mechanical structure test platform, including bottom plate (5) and slide plate (9), the slide plate (9) are slidably connected at bottom plate (5) On, it is characterised in that roller is provided between the slide plate (9) and bottom plate (5), the roller is provided with connecting shaft, the connection One end of axle is fixedly connected on slide plate (9), and the side of the bottom plate (5) is provided with fixing axle (1), and the one of the fixing axle (1) End is socketed with bearing holder (housing, cover) (2), ball (3) is connected with the bearing holder (housing, cover) (2), the opposite side of the bottom plate (5) slidably connects Rotating shaft (6), belt (4) is socketed between the rotating shaft (6) and fixing axle (1), the belt (4) is socketed with bearing holder (housing, cover) (2), institute The side for stating slide plate (9) is fixedly connected with spin bearing (15), and connected ball (10) is connected with the spin bearing (15), described It is fixedly connected with the second connecting rod (14) in connected ball (10), the side relative with slide plate (9), which is fixed, on the fixing axle (1) connects Hold-down support (11) is connected to, head rod (12), the head rod are rotatably connected on the hold-down support (11) (12) it is rotatablely connected with the second connecting rod (14) by latch (13), the opposite side of the slide plate (9) is provided with spring housing (8), institute State spring housing (8) and be provided with spring groove, the spring housing (8) is socketed with slide-bar (7), and the slide-bar (7) is slidably connected at spring On groove, the slide-bar (7) and the side of rotating shaft (6) offset.

2. a kind of mechanical structure test platform according to claim 1, it is characterised in that be provided with bullet in the spring groove Spring, one end of the spring are fixedly connected with slide-bar (7), and the one end of the slide-bar (7) away from spring is dome-type.

3. a kind of mechanical structure test platform according to claim 1, it is characterised in that set on the spin bearing (15) There is spin groove, the spin bearing (15) is provided with opening, and the connected ball (10) is connected on spin groove, second connection Bar (14) passes through opening.

4. a kind of mechanical structure test platform according to claim 1, it is characterised in that the rotating shaft (6) covers lace (4) one end is provided with belt shaft, and the belt shaft is rotatablely connected with rotating shaft (6), and the belt (4) is socketed on belt shaft.

5. a kind of mechanical structure test platform according to claim 1, it is characterised in that the material of the belt (4) is Rubber.

6. a kind of mechanical structure test platform according to claim 1, it is characterised in that one end of the rotating shaft (6) is consolidated Surely slide bar is connected with, the bottom plate (5) is provided with chute, and the slide bar is connected with slide, and the slide bar is away from rotating shaft (6) One end be provided with trapezoidal slide block, the chute is provided with multiple trapezoidal necks corresponding with trapezoidal slide block.