CN220919953U - Limiting device for shock type standard vibration pendulum instrument - Google Patents

Abstract

The utility model belongs to the technical field of vibration instruments and discloses a limiting device for a vibration type standard vibration instrument. According to the vibration-absorbing device, the vibration-absorbing limiting component, the vertical rod, the elastic block and the second spring are matched, when the vibration screen box shakes in the use process of the device, the first spring can elastically stretch and retract in the fixed sleeve to filter vibration due to vibration, when the vibration-absorbing block ejects, a part of vibration force can be transmitted into the flexible vibration-absorbing cotton to realize vibration absorption, and meanwhile, under the vibration absorption of the elastic block and the second spring, synchronous vibration absorption in the vertical and transverse aspects of the vibration screen box is realized, so that the vibration screen box is effectively prevented from being damaged, and meanwhile noise reduction can be realized by utilizing vibration absorption.

Description

Limiting device for shock type standard vibration pendulum instrument

Technical Field

The utility model belongs to the technical field of vibration pendulums, and particularly relates to a limiting device for a vibration type standard vibration pendulums.

Background

The vibration type standard vibration instrument is mainly used for screening and analyzing materials in laboratories of departments such as highways, buildings, geological metallurgy research and the like, and has the advantages of good performance, large rotation range, strong vibration force, good screening effect and the like.

At present, most jarring type standard shakers all include the base, are provided with the shaking table in the top of base, are provided with the sieve box that shakes at the upper surface of shaking table, are provided with the sieve frame that shakes half encirclement of sieve box that shakes on the shaking table, are provided with the clamping piece that will shake sieve box and compress tightly downwards on the sieve frame that shakes, at jarring type standard shakers during operation, the clamping piece plays certain spacing fixed effect to the sieve box that shakes in the jar type standard shakers to refer to the patent number has been granted, patent number: CN212916539U discloses a stop device for jarring type standard pendulum that shakes, it realizes the spacing fixed to the sieve box that shakes through detachable stop gear to have and to shake the sieve box and carry out spacingly after the clamping piece is not hard up, although can realize the limited spacing fixed to the sieve box that shakes, still can produce certain shake because of the operation of equipment, and the part that contacts with the sieve box that shakes also can lead to shaking the sieve box under long-term collision and appear damaging etc. condition, and the noise that produces during the collision also can not avoid.

Disclosure of utility model

In order to solve the problems set forth in the background art, the present utility model provides a stop device for a jar type standard pendulum bob.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the limiting device for the jarring type standard vibration instrument comprises a fixed base, wherein a vibrating table is arranged at the top end of the fixed base, a plurality of sliding rods are fixedly connected to the top end of the vibrating table, top plates are arranged at the tops of the sliding rods, a vibrating screen box is sleeved at the top end of the vibrating table, and a damping limiting component is arranged between the vibrating screen box and the top plates;

The vibration reduction limiting component comprises a movable frame arranged above a vibration screen box, four fixing sleeves are fixedly connected to the lower surface of the movable frame at equal intervals, vibration guide blocks are arranged in the fixing sleeves in a sliding mode, connecting rods are fixedly connected to the bottom ends of the vibration guide blocks in a sliding mode, first springs are sleeved on the outer sides of the connecting rods in a sliding mode, connecting blocks are fixedly connected to the bottom ends of the connecting rods in a sliding mode, limiting plates are fixedly connected to the bottom ends of the connecting blocks in a four-in-one mode, and flexible vibration reduction cotton is fixedly arranged at the top ends of inner cavities of the fixing sleeves.

Preferably, one side fixedly connected with fixed plate of roof, the last fixed surface of fixed plate installs electric putter, electric putter's output shaft one end fixed mounting has the gag lever post, the bottom fixedly connected with set square of gag lever post, movable frame fixed mounting is in the bottom of set square.

Preferably, the top end of the first spring is fixedly connected with the lower surface of the shock guide block, and the bottom end of the first spring is fixedly connected with the upper surface of the connecting block.

Preferably, two guide grooves are symmetrically formed in the inner wall of the fixed sleeve, guide blocks are sleeved in the guide grooves in a sliding mode, and the two guide blocks are symmetrically and fixedly connected to the outer sides of the shock guide blocks.

Preferably, the inside annular equidistance slip of movable frame is connected with three dead lever, and is three the equal fixedly connected with montant of one end of dead lever, one side bottom fixed mounting of montant has two elastic blocks.

Preferably, the mid-mounting of movable frame has a rolling axle, the top fixedly connected with driving motor of rolling axle, driving motor fixed mounting is at the upper surface of set square, driving motor's output fixedly connected with rolling axle, the outside fixedly connected with three stay cord of rolling axle, three the one end of stay cord respectively with the other end fixed connection of three dead lever.

Preferably, the inside fixed mounting of movable frame has the inside casing, and is three slip interlude is connected between dead lever and the inside casing, the outside slip of dead lever has cup jointed the second spring, just the outside fixed arc piece that has cup jointed of dead lever, second spring fixed connection is between inside casing and arc piece.

Compared with the prior art, the utility model has the following beneficial effects:

According to the vibration-absorbing device, the vibration-absorbing limiting component, the vertical rod, the elastic block and the second spring are matched, when the vibration-absorbing device is used, the first spring can elastically stretch and retract in the fixed sleeve to filter vibration when the vibration-absorbing box shakes, a part of vibration force can be transmitted to the flexible vibration-absorbing cotton to realize vibration absorption when the vibration-absorbing block is sprung, and meanwhile synchronous vibration absorption in the vertical and transverse directions of the vibration-absorbing box is realized under the vibration absorption of the elastic block and the second spring, so that the damage of the vibration-absorbing box is effectively avoided, and meanwhile noise reduction can be realized by utilizing vibration absorption.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a shock absorbing stop assembly according to the present utility model;

FIG. 3 is a bottom view of the shock absorbing stop assembly of the present utility model;

FIG. 4 is a cross-sectional view of a retaining sleeve according to the present utility model;

Fig. 5 is a bottom cross-sectional view of the movable frame of the present utility model.

In the figure: 1. a fixed base; 2. a vibration table; 3. vibrating screen box; 4. a slide bar; 5. a top plate; 6. a fixing plate; 7. a movable frame; 8. a limiting plate; 9. a vertical rod; 10. an elastic block; 11. a fixed sleeve; 12. a shock-conducting block; 13. a first spring; 14. a connecting block; 15. flexible damping cotton; 16. a guide groove; 17. a guide block; 18. an electric push rod; 19. a limit rod; 20. a triangle; 21. a driving motor; 22. a winding shaft; 23. a pull rope; 24. a fixed rod; 25. a second spring; 26. an inner frame body; 27. arc blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the utility model provides a limiting device for a jarring type standard vibration pendulum instrument, which comprises a fixed base 1, wherein a vibration table 2 is arranged at the top end of the fixed base 1, a plurality of sliding rods 4 are fixedly connected to the top end of the vibration table 2, the number of the sliding rods 4 is five, a top plate 5 is arranged at the top of the plurality of sliding rods 4, and a vibration sieve box 3 is sleeved at the top end of the vibration table 2.

Referring to fig. 1, fig. 2 and fig. 3, a damping limiting component is arranged between the vibrating screen box 3 and the top plate 5, the damping limiting component comprises a movable frame 7 arranged above the vibrating screen box 3, the movable frame 7 is circular, four fixed sleeves 11 are fixedly connected to the lower surface of the movable frame 7 at equal intervals, a vibration guide block 12 is sleeved in the four fixed sleeves 11 in a sliding manner, the vibration guide block 12 longitudinally moves in the fixed sleeves 11, a first spring 13 is fixedly connected to the bottom end of the vibration guide block 12, a connecting block 14 is fixedly connected to the bottom end of the first spring 13, referring to fig. 4, the first spring 13 is in a compressed state at this moment, a certain elastic potential energy is provided, the symmetrical center of the outer limit of the fixed sleeve 11 coincides with the symmetrical center of the vibration guide block 12 and the connecting block 14, limiting plates 8 are fixedly connected to the bottom ends of the four connecting blocks 14, the lower surfaces of the limiting plates 8 are circular, the lower surfaces of the limiting plates are attached to the top ends of the vibrating screen box 3, the inner cavity top ends of the fixed with a flexible cotton block 15 fixedly connected to the top ends of the first spring 13, and the upper surfaces of the first spring 13 are fixedly connected to the bottom ends of the first spring 13.

Two guide grooves 16 are symmetrically formed in the inner wall of the fixed sleeve 11, guide blocks 17 are sleeved in the two guide grooves 16 in a sliding mode, the two guide blocks 17 are symmetrically and fixedly connected to the outer side of the shock-guiding block 12, and the shock-guiding block 12 is limited to move up and down in the fixed sleeve 11 by means of sliding sleeves between the guide blocks 17 and the guide grooves 16.

It should be noted that, the first spring 13 can absorb shock, thereby can carry out elastic expansion in the inside of fixed sleeve 11 when it receives the vibrations and filter vibrations, fixed sleeve 11 can restrain the bounce-back shock of fixed sleeve 11, and can drive the vibration guide piece 12 and reciprocate when fixed sleeve 11 elastic expansion, the vibration guide piece 12 is convenient for carry out displacement spacing to first spring 13 through the mutually supporting between guide piece 17 and the guide slot 16, and can conduct some vibration force to flexible shock attenuation cotton 15 when the vibration guide piece 12 is sprung, flexible shock attenuation cotton 15 is inside be the porous structure, can effectively inhale the shock, thereby mutually supporting of part between this shock attenuation limiting component, further realization is to the shock attenuation in the aspect of the vertical of vibration sieve box 3, the shock attenuation is more abundant.

One side fixedly connected with fixed plate 6 of roof 5, the last fixed surface of fixed plate 6 installs electric putter 18, electric putter 18 passes through external power cord and external power source electric connection, electric putter's output shaft one end fixed mounting has gag lever post 19, the bottom fixedly connected with set-square 20 of gag lever post 19, the outside of three slide bar 4 wherein is established to set-square 20 slip cap, stability when guaranteeing set-square 20 and reciprocate, movable frame 7 fixed mounting is in set-square 20's bottom, after placing vibrating screen box 3 on vibrating table 2, utilize electric putter 18's operation, can finally realize limiting plate 8 to vibrating screen box 3's spacing.

Referring to fig. 3 and 5, three fixed rods 24 are connected in an annular equidistant sliding and penetrating manner in the movable frame 7, the three fixed rods 24 can transversely move in the movable frame 7, one ends of the three fixed rods 24 are fixedly connected with vertical rods 9, two elastic blocks 10 are fixedly arranged at the bottom of one side of each vertical rod 9, the outer surfaces of the elastic blocks 10 are attached to the outer surfaces of the vibrating screen boxes 3, a rolling shaft 22 is arranged in the middle of the movable frame 7, the bottom end of the rolling shaft 22 is connected with the bottom end of an inner cavity of the movable frame 7 through a bearing, the movable frame 7 is not driven to synchronously rotate when the rolling shaft 22 rotates, a driving motor 21 is fixedly connected to the top end of the rolling shaft 22, the driving motor 21 is electrically connected with an external power supply through an external power line, the driving motor 21 is fixedly arranged on the upper surface of a triangular plate 20, the output end of the driving motor 21 is fixedly connected with the rolling shaft 22, three pull ropes 23 are fixedly connected to the outer sides of the rolling shaft 22, connection points of the three pull ropes 23 and the rolling shaft 22 are arranged up and down in a staggered manner, winding and other ends of the three pull ropes 23 can be effectively avoided when the rolling shaft 22 rotates, one ends of the three pull ropes 23 are respectively connected with the three pull ropes 24 in a certain rigid manner, and the other ends of the pull ropes are not fixedly connected with the pull ropes are fixedly connected with the external power source.

The inside fixed mounting of movable frame 7 has inside casing 26, and three dead lever 24 all are connected with the slip interlude between the inside casing 26, and through the slip interlude connection between inside casing 26 and the dead lever 24, stability when having guaranteed dead lever 24 lateral shifting, the outside of dead lever 24 has slidingly sleeved second spring 25, just the fixed arc piece 27 that has sleeved in the outside of dead lever 24, second spring 25 fixed connection is between inside casing 26 and arc piece 27, and after electric putter 18 moved to laminating between limiting plate 8 and the sieve box 3, utilize two elastic blocks 10 on montant 9 to transversely limit the sieve box 3 that shakes to and under the shock absorbing effect of elastic block 10 and second spring 25, can realize the spacing shock attenuation to the horizontal aspect of sieve box 3 that shakes.

The working principle and the flow of the utility model,

When the vibrating screen box 3 is used, after the vibrating screen box 3 is placed on the vibrating table 2, the electric push rod 18 is operated to drive the limit rod 19 to move downwards, the limit rod 19 is moved to drive the triangular plate 20 and the movable frame 7 to synchronously move downwards, and the movable frame 7 is moved to drive the limit plate 8 to move downwards until the limit plate 8 moves downwards to be tightly attached to the vibrating screen box 3, so that vertical limit of the vibrating screen box 3 is realized.

The operation driving motor 21 drives the winding shaft 22 to rotate, and when the winding shaft 22 rotates, three pull ropes 23 are driven to wind onto the winding shaft 22, the fixed rod 24 is driven to move towards the movable frame 7 under the pulling of the pull ropes 23, and the fixed rod 24 moves to drive the vertical rod 9 to move until the elastic block 10 is attached to the vibrating screen box 3, so that the transverse limit of the vibrating screen box 3 is realized.

In this equipment use, when shaking the sieve box 3 shakes, thereby first spring 13 receives the vibrations and can carry out elasticity flexible filtration vibrations in the inside of fixed sleeve 11 to can drive the activity from top to bottom of shock-conducting block 12 when fixed sleeve 11 elasticity is flexible, can conduct some vibration power to flexible shock attenuation cotton 15 when the shock-conducting block 12 is sprung, flexible shock attenuation cotton 15 is inside to be the gas pocket structure, can effectively inhale the shake, simultaneously under the shock absorption of elastic block 10 and second spring 25, thereby realize the synchronous shock attenuation to the vertical and horizontal aspect of sieve box 3 shakes, and then utilize the shock attenuation to realize making an uproar falls.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (7)

1. A stop device for jarring type standard pendulum appearance that shakes, its characterized in that: the vibrating screen comprises a fixed base (1), wherein a vibrating table (2) is arranged at the top end of the fixed base (1), a plurality of sliding rods (4) are fixedly connected to the top end of the vibrating table (2), top plates (5) are arranged at the tops of the sliding rods (4), a vibrating screen box (3) is sleeved at the top end of the vibrating table (2), and a damping limiting component is arranged between the vibrating screen box (3) and the top plates (5);

The vibration reduction limiting component comprises a movable frame (7) arranged above a vibration screen box (3), four fixing sleeves (11) are fixedly connected to the lower surface of the movable frame (7) at equal intervals, vibration guide blocks (12) are arranged in the fixing sleeves (11) in a sliding mode, first springs (13) are fixedly connected to the bottom ends of the vibration guide blocks (12), connecting blocks (14) are fixedly connected to the bottom ends of the first springs (13), limiting plates (8) are fixedly connected to the bottom ends of the connecting blocks (14), and flexible vibration reduction cotton (15) is fixedly arranged at the top ends of inner cavities of the fixing sleeves (11).

2. The stop device for a jar standard pendulum according to claim 1, wherein: one side fixedly connected with fixed plate (6) of roof (5), the upper surface fixed mounting of fixed plate (6) has electric putter (18), the output shaft one end fixed mounting of electric putter (18) has gag lever post (19), the bottom fixedly connected with set square (20) of gag lever post (19), movable frame (7) fixed mounting is in the bottom of set square (20).

3. The stop device for a jar standard pendulum according to claim 1, wherein: the top of the first spring (13) is fixedly connected with the lower surface of the shock-guiding block (12), and the bottom of the first spring (13) is fixedly connected with the upper surface of the connecting block (14).

4. The stop device for a jar standard pendulum according to claim 1, wherein: two guide grooves (16) are symmetrically formed in the inner wall of the fixed sleeve (11), guide blocks (17) are sleeved in the guide grooves (16) in a sliding mode, and the guide blocks (17) are symmetrically and fixedly connected to the outer sides of the shock-guiding blocks (12).

5. The stop device for a jar standard pendulum according to claim 1, wherein: the movable frame is characterized in that three fixing rods (24) are connected in an annular equidistant sliding penetrating mode in the movable frame (7), one ends of the three fixing rods (24) are fixedly connected with vertical rods (9), and two elastic blocks (10) are fixedly installed at the bottom of one side of each vertical rod (9).

6. The stop device for a jar standard pendulum according to claim 5, wherein: the middle part of movable frame (7) is equipped with rolling axle (22), the top fixedly connected with driving motor (21) of rolling axle (22), driving motor (21) fixed mounting is at the upper surface of set square (20), the output fixedly connected with rolling axle (22) of driving motor (21), the outside fixedly connected with three stay cord (23) of rolling axle (22), three the one end of stay cord (23) respectively with the other end fixed connection of three dead lever (24).

7. The stop device for a jar standard pendulum according to claim 5, wherein: the inside fixed mounting of movable frame (7) has inside casing (26), three fixed lever (24) all are connected with the slip interlude between inside casing (26), the outside of fixed lever (24) has slided and has cup jointed second spring (25), just the outside of fixed lever (24) is fixed cup joints arc piece (27), second spring (25) fixed connection is between inside casing (26) and arc piece (27).