CN108127625B

CN108127625B - Vibration reduction workbench of engine

Info

Publication number: CN108127625B
Application number: CN201711387450.0A
Authority: CN
Inventors: 卢加权
Original assignee: Chongqing Houquan Technology Development Co ltd
Current assignee: Chongqing Houquan Technology Development Co ltd
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2020-05-05
Anticipated expiration: 2037-12-20
Also published as: CN108127625A

Abstract

The invention discloses an engine vibration reduction workbench in the field of engine detection equipment, which comprises a primary platform and a secondary platform, wherein the secondary platform is arranged at the upper end of the primary platform, a vibration reduction column is arranged at the bottom of the secondary platform, the primary platform comprises a base and a supporting platform, the base comprises a bottom plate, a vibration reduction barrel is arranged on the bottom plate, a plurality of vibration reduction plates are vertically superposed in the vibration reduction barrel, a guide hole is formed in the middle of each vibration reduction plate, each vibration reduction plate comprises an upper wave plate and a lower wave plate, the upper wave plate and the lower wave plate are both in a corrugated plate shape, corrugations on the upper wave plate and the lower wave plate are both radiated outwards by taking the guide hole as the center, and wave troughs of the upper wave plate are abutted against; a push rod penetrates through the damping cylinder, a pressing plate is fixed on the push rod, and the pressing plate is positioned between the top plate and the damping sheet; the supporting platform is provided with a through hole, and the top end of the ejector rod penetrates through the through hole. The connection with a certain floating range is formed between the tools when the engine is detected, and the problem that the rigid connection is vibrated to easily generate noise pollution when the existing engine is detected is solved.

Description

Vibration reduction workbench of engine

Technical Field

The invention relates to the field of engine detection equipment, in particular to an engine vibration reduction workbench.

Background

In the detection test of the motorcycle engine, a set of clamp for mounting and suspending the engine is needed, and at present, the clamp mainly comprises a bottom plate and a left fixing bracket and a right fixing bracket which are fixedly mounted on the bottom plate and used for mounting and suspending the engine, the bottom plate is rigidly connected with the left fixing bracket and the right fixing bracket by fastening bolts, and the bottom plate is also rigidly connected on a test bench, so that in the working process of the engine, due to the vibration of the engine, impact vibration can be generated between the rigid connecting components, and simultaneously, larger noise is generated, which is very likely to cause the damage of related components and the engine, and cause serious environmental noise pollution.

Disclosure of Invention

The invention aims to provide a vibration reduction workbench of an engine, and solves the problem that rigid connection is easy to generate noise pollution due to vibration when the existing engine is detected.

In order to achieve the purpose, the basic technical scheme of the invention is as follows: the engine vibration reduction workbench comprises a primary platform and a secondary platform, wherein the secondary platform is detachably connected to the upper end of the primary platform, the secondary platform comprises a rectangular loading plate and vibration reduction columns distributed at four corners of the bottom of the loading plate, the primary platform comprises a base and a supporting platform, the base comprises two vertical supporting plates arranged in parallel, a transverse bottom plate is connected between the two supporting plates, four vibration reduction cylinders are distributed on the bottom plate in a matrix manner, a plurality of vibration reduction plates are vertically stacked in the vibration reduction cylinders, guide holes are formed in the middle of the vibration reduction plates, each vibration reduction plate comprises an upper wave plate and a lower wave plate, the upper wave plate and the lower wave plate are both corrugated, corrugations on the upper wave plate and the lower wave plate radiate outwards by taking the guide holes as centers, and wave troughs of the upper wave plate are abutted against and fixedly connected with wave crests of the lower; a top plate with a through hole in the middle is fixed at the top end of the damping cylinder, a mandril penetrates through the through hole, a pressing plate is fixed on the mandril, and the pressing plate is positioned between the top plate and the damping sheet; the supporting platform is provided with a through hole, and the top end of the ejector rod penetrates through the through hole.

The principle and the advantages of the scheme are as follows: in practical application, the primary platform is used for providing bottom support and further vibration damping for the secondary platform, and the secondary platform is used for providing support and preliminary vibration damping for the engine and the clamp thereof. The loading plate is used for supporting the engine clamp and transmitting vibration generated in the engine detection process, the vibration damping column is used for supporting and preliminarily damping the loading plate, the base is used for providing integral support, and the supporting table is used for mounting and supporting the primary platform and transmitting vibration. The backup pad provides the support for the bottom plate and provides the erection joint point for the workstation, the placing of workstation of being convenient for. The bottom plate provides the support for the damping cylinder, and four damping cylinders are the vibration that the matrix distribution evenly absorbed the brace table from four directions, and the damping piece is used for further absorption weakening vibration. The guiding hole is used for leading the ejector pin and weakening the vibration at the middle part of the vibration damping sheet, the upper wave plate and the lower wave plate of the corrugated plate are overlapped to form a plurality of cavities with smooth surfaces, the vibration is transmitted to the vibration damping sheet and then is divided and weakened by a plurality of cavity structures, simultaneously, the upper wave plate and the lower wave plate are extruded mutually to enable the cavities to deform and absorb vibration, the noise generated by vibration is weakened gradually in the reciprocating fluctuation between the cavity walls, the corrugation radiates outwards from the guiding hole, the corrugation of the vibration damping sheet is gradually concentrated from the edge to the guiding hole, the vibration wave can be weakened more quickly on the vibration damping sheet, and the vibration damping effect is. The roof is used for restricting the damping piece and prevents that it breaks away from in the damping cylinder, and the ejector pin is used for connecting one-level platform and transmission vibration, and the clamp plate is used for compressing tightly the damping piece and gives the damping piece with the vibration transmission, and the top of ejector pin is passed the through-hole and is convenient for contact the one-level platform transmission vibration of fixing on the brace table to carry out supplementary injecing to the position of brace table on the base. The vibration that produces in the engine testing process carries out the damping through the damping post of one-level platform earlier, vibration after the damping post damping weakens passes through ejector pin and brace table and transmits for the damping cylinder, the vibration is through the deformation of damping piece and cut apart and carry out further weakening in the damping cylinder, finally by the process absorption that the damping piece warp and recovers, reach good damping effect, the noise that the vibration produced is absorbed simultaneously through a plurality of cavitys in the damping cylinder to the damping in-process, good noise cancelling effect has in the damping, form the connection that has certain floating range between the frock when the engine detects time measuring, solve the problem that current engine detects time measuring rigid connection and receives the easy noise pollution that produces of vibration.

Preferably, in the first scheme, as an improvement of the basic scheme, the corrugation densities of the upper wave plate and the lower wave plate in adjacent damping plates from top to bottom are sequentially increased. The damping amortization cavity that sets up like this and make the inside formation of damping piece that is located the below more, and a plurality of damping pieces are from last to lower gradually stronger to the weakening effect of vibration and noise, further improve the damping effect in the engine testing process, and damping amortization effect is better.

In a second preferred embodiment, as an improvement of the first preferred embodiment, a lower spring is connected between the pressing plate and the top plate. Set up like this and carry out pretension and buffering through lower spring to clamp plate and damping piece, carry out the damping in step through lower spring and damping piece, further improve the damping effect, avoid simultaneously causing the damage because of the vibration produces beating between the damping piece.

Preferably, as an improvement of the second preferred embodiment, rubber is filled between the wave crest of the upper wave plate and the wave trough of the lower wave plate in the same damping plate. The structure of the interior of the vibration reduction sheet is more stable and firm due to the arrangement, the vibration reduction sheet is not prone to permanent deformation after long-term use, and meanwhile, the vibration reduction effect of the vibration reduction sheet can be improved through rubber, so that the vibration reduction effect is better.

Preferably, in a third preferred embodiment, a plurality of T-shaped grooves are formed in the upper ends of the loading plate and the supporting table, respectively, in parallel with each other. Can use the bolt to carry out the installation of second grade platform or different model engine anchor clamps through the T-shaped groove, it is more convenient to use, easy operation.

Preferably five, as the improvement of preferably four, the damping post includes the base, is equipped with the hole on the base, and the base upper end is fixed with protects a section of thick bamboo, protects and is equipped with the support column in the section of thick bamboo, and the cover is equipped with the spring on the support column, and the support column top is equipped with the screw hole, loads and is equipped with the mounting hole on the board, is equipped with the bolt in the mounting hole, and bolted connection is in the screw hole. The high-frequency vibration absorber can well absorb vibration of the middle and high frequency range through the upper spring, the height of the loading plate can be adjusted through the bolts, and the engine can be precisely centered to reduce the vibration intensity conveniently.

Preferably scheme six, as the improvement of preferably scheme five, the side of brace table is equipped with decurrent buckle, and the side of bottom plate is fixed with vertical curb plate, and the buckle supports and leans on in the outside of curb plate, is equipped with the hole for hoist on the curb plate. Can carry out horizontal location to a supporting bench through buckle and curb plate, avoid receiving vibration production skew to cause the extrusion to influence the damping effect to the ejector pin, be convenient for hoist and mount the transport through the hole for hoist.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a damper cylinder according to an embodiment of the present invention;

FIG. 3 is a top view of an upper waveplate in an embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a mounting plate 1, a side plate 2, a support plate 3, a buckle plate 4, a support table 5, a support column 6, a loading plate 7, a mounting hole 8, an upper spring 9, a protective cylinder 10, a guide rail 11, a bottom plate 12, a vibration reduction cylinder 13, a hoisting hole 14, a lower spring 15, a mandril 16, a pressure plate 17, an upper wave plate 18, a lower wave plate 19 and a guide hole 20.

The embodiment is basically as shown in the attached figure 1: engine damping workstation, including one-level platform and second grade platform, the upper end at the one-level platform can be dismantled to the second grade platform, the second grade platform includes the loading board 7 of rectangle and the damping post that distributes in four corners in loading board 7 bottom, the damping post includes the base, be equipped with the hole on the base, the base upper end is fixed with protects a section of thick bamboo 10, be equipped with support column 6 in protecting a section of thick bamboo 10, the cover is equipped with spring 9 on

support column

6, 6 tops of support column are equipped with the screw hole, be equipped with mounting hole 8 on loading board 7, be equipped with the bolt in the mounting hole 8. The primary platform comprises a base and a supporting platform 5, the base comprises two vertical supporting plates 3 which are arranged in parallel, a mounting plate 1 is welded at the bottom of each supporting plate 3, holes are formed in the mounting plate 1, a transverse rectangular bottom plate 12 is welded between the two supporting plates 3, four vibration reduction cylinders 13 are distributed on the bottom plate 12 in a matrix manner, as shown in fig. 2 and 3, four vibration reduction plates are vertically overlapped in each vibration reduction cylinder 13, guide holes 20 are formed in the middles of the vibration reduction plates, each vibration reduction plate comprises an upper wave plate 18 and a lower wave plate 19, the upper wave plate 18 and the lower wave plate 19 are both in a corrugated plate shape, corrugations on the upper wave plate 18 and the lower wave plate 19 radiate outwards by taking the guide holes 20 as centers, wave troughs of the upper wave plate 18 abut against wave crests of the lower wave plate 19 and are fixed through laser spot welding, and the density of the upper wave plate 18 and the lower; rubber is filled between the wave crest of the upper wave plate 18 and the wave trough of the lower wave plate 19 in the same damping plate. A top plate with a through hole in the middle is fixed at the top end of the damping cylinder 13, an ejector rod 16 penetrates through the through hole, a pressing plate 17 is fixed on the ejector rod 16, the pressing plate 17 is positioned between the top plate and the damping sheet, and a lower spring 15 is connected between the pressing plate 17 and the top plate; the supporting platform 5 is provided with a through hole, and the top end of the ejector rod 16 is arranged in the through hole in a penetrating mode. The upper ends of the loading plate 7 and the supporting table 5 are provided with four T-shaped grooves which are parallel to each other, the middle parts of the upper ends of the loading plate 7 and the supporting table 5 are provided with guide rails 11 which are parallel to the T-shaped grooves, a downward buckling plate 4 is integrally formed at the side end of the supporting table 5, a vertical side plate 2 is welded at the side end of the bottom plate 12, the buckling plate 4 is abutted against the outer side of the side plate 2, and a hoisting hole 14 is formed in the side plate. The middle part of backup pad 3 is opened there is the transport hole, and backup pad 3 is as holistic support, through the transport of the convenient base of transport hole, and the transport hole forms the fretwork in backup pad 3 middle part simultaneously for even if there is the vibration transmission to backup pad 3 department also can weaken through the transport hole.

In this embodiment, during practical application, mounting panel 1, backup pad 3, bottom plate 12, curb plate 2 all pass through the welded fastening shaping, and damping cylinder 13 passes through bolt fixed connection on bottom plate 12, and brace table 5 is detained and is covered on the base, and buckle 4 supports and leans on in the outside of curb plate 2, and the through-hole on brace table 5 is passed on the top of ejector pin 16. Through fixing the one-level platform on detection device at mounting panel 1, through wear to establish the bolt and with the T-slot of the head joint on brace table 5 on the damping column base, the through-hole on brace table 5 is located the below of damping column base and makes the top and the damping column base contact of ejector pin 16, realizes being connected of one-level platform and second grade platform. The loading plate 7 is connected with the damping column through bolts penetrating through the mounting holes 8 in the loading plate 7 and connected with threaded holes in the supporting column 6. Realize the installation of engine anchor clamps on the damping workstation through the connection in bolt and T-slot, can carry out the centering to the engine through guide rail 11 on loading plate 7 and the brace table 5 in the installation, the vibration that the engine drove anchor clamps to produce passes through the damping post and transmits for brace table 5 and ejector pin 16 in the testing process, brace table 5 and ejector pin 16 transmit the vibration for the damping piece, the last spring 9 in the damping post carries out preliminary damping to the vibration, the centering, the vibration of high frequency is absorbed, twist and move the bolt and can finely adjust the height of loading plate 7 through the effect of last spring 9, make the engine can with the accurate centering of check out test set reduce the vibration range. The supporting table 5 floats on the base through the lower spring 15, vibration is transmitted to the supporting table 5 and is absorbed through the lower spring 15, the vibration is transmitted to the vibration reduction plate through the ejector rod 16 and the pressing plate 17, the vibration reduction plate is extruded by vibration, the vibration is vertically dispersed among wave crests and wave troughs through the corrugated surfaces of the upper wave plate 19 and the lower wave plate 19 to be transversely and annularly transmitted and weakened, the vibration is gradually absorbed after being sequentially weakened through corrugations with different densities from top to bottom, noise generated by the vibration is gradually dispersed, weakened and absorbed in a plurality of cavities formed between the upper wave plate 19 and the lower wave plate 19, the low, medium and high-frequency vibration and noise can be well absorbed, the vibration reduction and the noise reduction in the detection process of the engine are realized through two-stage vibration reduction of the first-stage platform and the second-stage platform, the floating connection is formed between tools during the detection of the engine, and the, Causing problems of abrasion, influencing detection precision and the like.

The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The engine damping workstation, its characterized in that: the vibration reduction platform comprises a primary platform and a secondary platform, wherein the secondary platform is detachably connected to the upper end of the primary platform, the secondary platform comprises a rectangular loading plate and vibration reduction columns distributed at four corners of the bottom of the loading plate, the primary platform comprises a base and a supporting table, the base comprises two vertical supporting plates arranged in parallel, a transverse bottom plate is connected between the two supporting plates, four vibration reduction cylinders are distributed on the bottom plate in a matrix manner, a plurality of vibration reduction plates are vertically overlapped in the vibration reduction cylinders, guide holes are formed in the middle of the vibration reduction plates, each vibration reduction plate comprises an upper wave plate and a lower wave plate, the upper wave plate and the lower wave plate are both corrugated, corrugations on the upper wave plate and the lower wave plate radiate outwards by taking the guide holes as centers, and wave troughs of the upper wave plate are abutted against and fixedly connected with wave; a top plate with a through hole in the middle is fixed at the top end of the damping cylinder, a mandril penetrates through the through hole, a pressing plate is fixed on the mandril, and the pressing plate is positioned between the top plate and the damping sheet; the supporting platform is provided with a through hole, and the top end of the ejector rod penetrates through the through hole; the ripple density of the upper wave plate and the lower wave plate in the adjacent damping sheets from top to bottom is increased in sequence; rubber is filled between the wave crest of the upper wave plate and the wave trough of the lower wave plate in the same damping sheet; a lower spring is connected between the pressure plate and the top plate; the upper ends of the loading plate and the supporting platform are respectively provided with a plurality of T-shaped grooves which are parallel to each other; the damping column comprises a base, a hole is formed in the base, a protective cylinder is fixed at the upper end of the base, a supporting column is arranged in the protective cylinder, an upper spring is sleeved on the supporting column, a threaded hole is formed in the top end of the supporting column, a mounting hole is formed in the loading plate, a bolt is arranged in the mounting hole, and the bolt is connected in the threaded hole; the lateral end of the supporting table is provided with a downward buckle plate, the lateral end of the bottom plate is fixedly provided with a vertical lateral plate, the buckle plate is abutted against the outer side of the lateral plate, and the lateral plate is provided with a hoisting hole.