CN108827535A - A kind of mass center testing stand - Google Patents

Abstract

The invention discloses a centroid test bench, which comprises a base, an inclined plate is connected to the upper surface of the base through a shaft, one side of the inclined plate is fixedly connected with a drawing plate, and a collar is welded on the upper surface of the drawing plate , one side of the upper surface of the base is fixedly connected with a support plate through a bracket, the lower end of the support plate is fixedly connected with a brake motor, the port position of the brake motor is provided with a rotating shaft, and the surface of the rotating shaft is fixedly sleeved with a winding disk , the surface of the winding reel is wound with a steel wire rope. The center of mass test bench can lift the inclined plate to achieve a certain angle of inclination, so that during the inclination process, the center of mass and center of gravity of the experimental object can be compared and tested. The splint can move back and forth, adjust according to the width of the experimental object, and Realize clamping, ensure the stability of the experimental object when it is tilted, and prevent it from sliding sideways.

Description

A Centroid Test Bench

technical field

The invention relates to the technical field of a centroid test bench, in particular to a centroid test bench.

Background technique

The center of mass, referred to as the center of mass, refers to an imaginary point on a material system where the mass is considered to be concentrated. Unlike the center of gravity, the center of mass does not have to be in a system with a gravitational field. At the same time, unless the gravitational field is uniform, the center of mass and the center of gravity of the same material system are usually not at the same imaginary point.

In order to test the position of the center of mass of the experimental object, the experimental object is usually lifted, and the reference test of the position of the center of mass and the position of the center of gravity is completed through the inclination of the experimental object during hoisting. However, due to the different shapes of the experimental object, such as a sphere Or irregular objects and other experimental objects that are inconvenient to lift on one side, it is necessary to conduct experimental comparisons by tilting, and when tilting, the stability of the experimental object needs to be guaranteed.

Contents of the invention

The purpose of the present invention is to provide a centroid test bench to solve the problems raised in the background art above.

In order to achieve the above object, the present invention provides the following technical solutions: a centroid test bench, including a base, the upper surface of the base is connected with an inclined plate through a shaft, one side of the inclined plate is fixedly connected with a pull plate, and the pull plate The upper surface of the plate is welded with a collar, one side of the upper surface of the base is fixedly connected with a support plate through a bracket, the lower end of the support plate is fixedly connected with a brake motor, and the port position of the brake motor is provided with a rotating shaft. The surface is fixedly sleeved with a winding reel, the surface of the reel is wound with a wire rope, one end of the wire rope is fixedly connected to the surface of the reel, and the other end of the wire rope is fixedly connected with a buckle, the buckle The inside surface of the sliding sleeve collar.

Preferably, the inside of the base is provided with a buffer groove, the inner side of the buffer groove is fixedly connected with a first spring, the other end of the first spring is fixedly connected with a buffer block, the surface of the buffer block is slidingly sleeved on the inner side of the buffer groove, and the buffer block The upper surface is close to the lower surface of the pull plate.

Preferably, side strips are fixedly connected to both sides of the upper surface of the inclined plate, through holes are provided inside the side strips, a storage plate is attached to the upper surface of the inclined plate, and both sides of the storage plate are slidably connected to the inside of the side strips. surface.

Preferably, the inside of the storage board is provided with a built-in hole, grooves are provided inside both sides of the storage board, a second spring is fixedly connected to the inner side of the groove, and a detent is fixedly connected to the other end of the second spring. The surface of the pin slides the sleeve through the inside of the hole.

Preferably, one side of the upper surface of the storage board is fixedly connected with a first baffle, the inner upper end of the first baffle is provided with a shaft hole, the inner side of the shaft hole is rotatably connected with a threaded rod, and one end of the threaded rod is fixedly connected with a knob , the other end of the threaded rod is fixedly connected with the first turntable.

Preferably, the other side of the upper surface of the storage board is fixedly connected with a second baffle, and the inside of the second baffle is provided with a first rotating groove, and the surface of the first turntable is rotatably connected to the inner side of the first rotating groove.

Preferably, the inner lower end of the first baffle plate and the inner lower end of the second baffle plate are fixedly connected to the limit rod, the surface of the limit rod is provided with a splint, the inner lower end of the splint is provided with a limit hole, and the inside of the limit hole The surface of the limit rod is slidingly sleeved, and the inner upper end of the splint is provided with a threaded hole, and the inner side of the threaded hole is threaded to connect with the surface of the threaded rod.

Preferably, the upper end of the splint is fixedly connected with a threaded seat, the inner side of the threaded seat is provided with a round rod, and the outer lower end of the round rod is provided with a threaded protrusion, and the surface of the threaded protrusion is threaded to connect the inner side of the threaded seat, and the outer side of the round rod The fixed sleeve at the middle position is connected with a rotating sleeve.

Preferably, the upper end of the round rod is fixedly connected with a second turntable, the upper end of the second turntable is provided with a linkage bar, and the inner lower end of the link bar is provided with a second rotating groove, and the surface of the second turntable is rotatably connected to the second turning groove. inside.

Compared with the prior art, the beneficial effect of the present invention is: the center of mass test bench can lift the inclined plate to achieve a certain angle of inclination, so that during the inclination process, the position of the center of mass and the center of gravity of the experimental object can be compared and tested. The splint can move back and forth, adjust according to the width of the experimental object, and achieve clamping to ensure the stability of the experimental object when it is tilted and prevent it from slipping. , improve the stability of the experimental object in the test.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the enlarged schematic view of place a of the present invention;

Fig. 3 is the top view position schematic diagram of two baffle plates and clamping plate of the present invention;

Fig. 4 is a structural schematic diagram of the connection part of the round bar of the present invention.

Among the figure: 1 base, 11 inclined plate, 12 pull plate, 13 collar, 14 support plate, 15 brake motor, 16 winding reel, 17 rotating shaft, 18 steel wire rope, 19 ring buckle, 110 buffer tank, 111 first spring, 112 buffer block, 2 storage plate, 21 built-in hole, 22 edge strip, 23 through hole, 24 groove, 25 second spring, 26 bayonet pin, 3 first baffle plate, 31 shaft hole, 32 knob, 33 threaded rod, 34 first turntable, 35 second baffle plate, 36 first rotation groove, 37 limit rod, 38 splint, 39 threaded hole, 310 limit hole, 4 thread seat, 41 round rod, 42 rotating sleeve, 43 second turntable , 44 second rotating grooves, 45 linkage bars, 46 threaded protrusions.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation.

Please refer to Figures 1-4, the present invention provides a technical solution: a centroid test bench, including a base 1, an inclined plate 11 is connected to the upper surface of the base 1 through a shaft, and a pull plate 12 is fixedly connected to one side of the inclined plate 11 , the upper surface of the pull plate 12 is welded with a collar 13, one side of the upper surface of the base 1 is fixedly connected with a support plate 14 through a bracket, and the lower end of the support plate 14 is fixedly connected with a brake motor 15, and the model of the brake motor 15 is 51K120GU-AF , high performance, long service life, the tail is equipped with brake pads, which can play a locking effect after power failure, the shell of the brake motor 15 is embedded with a forward and reverse switch, the model of the forward and reverse switch is HY2-15, The forward and reverse switch is connected in series with the brake motor 15 by wires, the forward and reverse switch is connected in series with the indoor power socket by wires, the port position of the brake motor 15 is provided with a rotating shaft 17, and the surface of the rotating shaft 17 is fixedly sleeved with a coil 16, The surface of the reel 16 is wound with a steel wire rope 18, one end of the wire rope 18 is fixedly connected to the surface of the reel 16, the other end of the wire rope 18 is fixedly connected with a buckle 19, and the inner side of the buckle 19 is slidingly sleeved on the surface of the collar 13, The inside of the base 1 is provided with a buffer groove 110, the inner side of the buffer groove 110 is fixedly connected with a first spring 111, and the other end of the first spring 111 is fixedly connected with a buffer block 112, and the surface of the buffer block 112 is slidingly sleeved inside the buffer groove 110 , when the inclined plate 11 is put down, the effect of a buffer protection can be played, the upper surface of the buffer block 112 is close to the lower surface of the pull plate 12, and the upper surface of the inclined plate 11 is fixedly connected with side strips 22 on both sides, and the side strips The inside of 22 is provided with through hole 23, and the upper surface of inclined plate 11 is closely attached to object plate 2, and the both sides of object plate 2 slidingly connects the inside surface of side bar 22, and the inside of object plate 2 is provided with built-in hole 21, and built-in hole The inner side of 21 can be inserted with a test board with a pressure sensor, through the change of pressure position during rollover, the comparative experiment of the position of the center of mass and the position of the center of gravity is carried out. The inner side is fixedly connected with a second spring 25, and the other end of the second spring 25 is fixedly connected with a bayonet pin 26. The surface of the bayonet pin 26 slides through the inner side of the hole 23, and one side of the upper surface of the storage board 2 is fixedly connected with a first spring. Baffle plate 3, the inner upper end of first baffle plate 3 is provided with shaft hole 31, and the inner side of shaft hole 31 is connected with threaded rod 33, and one end of threaded rod 33 is fixedly connected with knob 32, and the other end of threaded rod 33 is fixedly connected with The first turntable 34, the other side of the upper surface of the storage board 2 is fixedly connected with a second baffle 35, the inside of the second baffle 35 is provided with a first rotation groove 36, and the surface of the first turntable 34 is rotatably connected with the first rotation groove 36, the inner lower end of the first baffle plate 3 and the inner lower end of the second baffle plate 35 are all fixedly connected to the limit rod 37, and the surface of the limit rod 37 is provided with a clamping plate 38, and the clamping plate 38 can move horizontally. The lower end of the object is blocked to play an anti-skid effect. The inner lower end of the splint 38 is provided with a limit hole 310, and the inner sliding sleeve of the limit hole 310 Connect the surface of the stop rod 37, the inner upper end of the clamping plate 38 is provided with a threaded hole 39, the inner side of the threaded hole 39 is threaded to connect the surface of the threaded rod 33, the upper end of the clamping plate 38 is fixedly connected with a threaded seat 4, and the inboard of the threaded seat 4 is provided with Round rod 41, the quantity of round rod 41 is several rods of the same structure, forms the form of guardrail by a plurality of rods, to prevent the rollover of experimental object, the outer lower end of round rod 41 is provided with thread protrusion 46, and thread The surface of the protrusion 46 is threadedly connected to the inner side of the threaded seat 4, the outer middle position of the round rod 41 is fixedly sleeved with a rotating sleeve 42, the upper end of the round rod 41 is fixedly connected with a second turntable 43, and the upper end of the second turntable 43 is provided with a linkage Bar 45, the inner lower end of the linkage bar 45 is provided with a second rotating groove 44, the surface of the second rotating disk 43 is rotated to connect the inner side of the second rotating groove 44, and the body parts of the experimental object can be blocked by the round rod 41 to prevent the experimental object from passing through. high and roll over.

When the present invention is actually implemented: when it is necessary to place the experimental object, insert the test plate with pressure induction into the inner side of the built-in hole 21, and then place the object board 2 on the upper surface of the inclined plate 11, when the card When the position of the pin 26 corresponds to the position of the through hole 23, the compression and reset of the second spring 25 causes the bayonet pin 26 to pop into the inner side of the through hole 23 to complete the positioning and fixing of the object plate 2, and then place the test object On the storage board 2, and placed between the splint 38 and the second baffle plate 35, use the knob 32 to rotate the threaded rod 33, and the threaded rod 33 rotates, so that the first rotating disk 34 rotates on the inside of the first rotating groove 36, ensuring that the screw thread The stability of the rotation of the rod 33, and the movement of the splint 38 with the threaded hole 39 at the same time, cooperate with the limit hole 310 to slide on the surface of the limit rod 37, so that the splint 38 can move horizontally, and adjust according to the width of the test object. When the experimental object is tilted sideways, it will not slide sideways. When the round rod 41 needs to be installed, hold the rotating sleeve 42 so that the threaded protrusion 46 at the lower end of the round rod 41 is threaded to the inner side of the threaded seat 4, so that the round rod 41 Rod 41 can be fixed with splint 38, and when round rod 41 rotates, second rotating disk 43 is rotated in the inner side of second rotating groove 44, and linkage bar 45 can be fixed to several round rods 41 ports, thereby through a plurality of round rods 41 blocks, so that when the experimental object is tilted, the rollover situation will not occur. Finally, the forward rotation switch of the forward and reverse switch is used to start the brake motor 15, so that the brake motor 15 drives the winding reel 16 to take up the wire rope 18. Thereby the steel wire rope 18 pulls the inclined plate 11 to roll gradually, and carries out the test of the position of the center of mass and the position of the center of gravity.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. a kind of mass center testing stand, including pedestal (1), it is characterised in that：The upper surface of the pedestal (1) has by axis connection inclines The side of inclined plate (11), the hang plate (11) is fixedly connected with pulling plate (12), and the upper surface of the pulling plate (12) is welded with set Ring (13), the upper surface side of pedestal (1), which is fixed by the bracket, to be connected with support plate (14), and the lower end of the support plate (14) is solid Surely it is connected with brake motor (15), the port position of the brake motor (15) is equipped with shaft (17), the table of the shaft (17) Face fixing sleeve is connected to wire spool (16), and the surface wrap of the wire spool (16) has wirerope (18), the wirerope (18) One end is fixedly connected with the surface of wire spool (16), and the other end of the wirerope (18) is fixedly connected with latch closure (19), the ring The surface of lantern ring (13) is slidably socketed on the inside of button (19).

2. a kind of mass center testing stand according to claim 1, it is characterised in that：The inside of the pedestal (1) is equipped with buffering Slot (110) is fixedly connected with the first spring (111) on the inside of dashpot (110), and the other end of the first spring (111) is fixed to be connected It is connected to buffer stopper (112), the surface of buffer stopper (112) is slidably socketed the inside of dashpot (110), the upper table of buffer stopper (112) It is close to the lower surface of pulling plate (12) in face.

3. a kind of mass center testing stand according to claim 1, it is characterised in that：The upper surface two sides of the hang plate (11) It is fixedly connected to edge strip (22), the inside of edge strip (22) is equipped with through-hole (23), and the upper surface of hang plate (11) is glued with glove Plate (2), the two sides of parcel shelf (2) are slidably connected the inner surfaces of edge strip (22).

4. a kind of mass center testing stand according to claim 3, it is characterised in that：The inside of the parcel shelf (2) is equipped with interior It sets hole (21), is all provided with inside the two sides of parcel shelf (2) fluted (24), groove is fixedly connected with second spring on the inside of (24) (25), the other end of second spring (25) is fixedly connected with bayonet lock (26), and the surface of bayonet lock (26) is slidably socketed through-hole (23) Inside.

5. a kind of mass center testing stand according to claim 3, it is characterised in that：The upper surface side of the parcel shelf (2) It is fixedly connected with first baffle (3), the inner upper end of first baffle (3) is equipped with axis hole (31), and the inside of axis hole (31), which rotates, to be connected It is connected to threaded rod (33), one end of threaded rod (33) is fixedly connected with knob (32), and the other end of threaded rod (33) is fixedly connected There are the first turntable (34).

6. a kind of mass center testing stand according to claim 3 or 5, it is characterised in that：The upper surface of the parcel shelf (2) is another Side is fixedly connected with second baffle (35), and the inside of second baffle (35) is equipped with the first rotation slot (36), first turntable (34) inside of surface pivots connection the first rotation slot (36).

7. a kind of mass center testing stand according to claim 5 or 6, it is characterised in that：Under the inside of the first baffle (3) The inside lower end of end and second baffle (35) is fixedly connected to gag lever post (37), and the surface of gag lever post (37) is equipped with clamping plate (38), the interior lower end of clamping plate (38) is equipped with limit hole (310), is slidably socketed gag lever post (37) on the inside of limit hole (310) The inner upper end on surface, clamping plate (38) is equipped with threaded hole (39), the table of the inside thread connection screw thread bar (33) of threaded hole (39) Face.

8. a kind of mass center testing stand according to claim 7, it is characterised in that：The upper end of the clamping plate (38) is fixedly connected Have threaded block (4), the inside of threaded block (4) is equipped with round bar (41), and the outside lower end of round bar (41) is equipped with thread protrusion (46), spiral shell The surface of line protrusion (46) is threadedly coupled the inside of threaded block (4), and the outside middle position fixing sleeve of round bar (41) is connected to rotation It covers (42).

9. a kind of mass center testing stand according to claim 8, it is characterised in that：The upper end of the round bar (41) is fixedly connected Have the second turntable (43), the upper end of the second turntable (43) is equipped with linkage item (45), and the interior lower end of linkage item (45) is equipped with second Rotation slot (44), the inside of the surface pivots connection the second rotation slot (44) of the second turntable (43).