CN113623359B - Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine - Google Patents

Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine Download PDF

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Publication number
CN113623359B
CN113623359B CN202110986243.7A CN202110986243A CN113623359B CN 113623359 B CN113623359 B CN 113623359B CN 202110986243 A CN202110986243 A CN 202110986243A CN 113623359 B CN113623359 B CN 113623359B
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buffer
hydraulic machine
base
wheel
plate
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CN113623359A (en
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翟华
陈建富
吴玉程
方坤鹏
章征东
崖华青
李贵闪
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Hefei University of Technology
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Hefei University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085Use of both rubber and metal springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0076Noise or vibration isolation means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Handcart (AREA)

Abstract

The invention discloses a bidirectional movement buffer device for a large gantry type multidirectional correction hydraulic machine, which comprises a traveling wheel buffer mechanism and a side wheel buffer mechanism, wherein the side wheel buffer mechanism comprises a connecting base, a connecting frame, a first buffer group and a second buffer group, the connecting base is connected with an upright post side plate, the first buffer group is connected with the connecting base through the connecting frame, and the second buffer group is arranged between the first buffer group and the connecting base. According to the invention, through the side wheel buffer mechanism and the travelling wheel buffer mechanism, the problems of inclination and collision buffer and travelling wheel stopping buffer during base installation are respectively solved; the traveling wheel buffer mechanism also adopts a double buffer structure, and the front plate is provided with a layer of rubber pad, so that three-order buffering can be realized; the walking wheel buffer is additionally provided with a proximity switch to be connected with the PLC, so that the walking wheel can be automatically decelerated and stopped.

Description

Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine
Technical Field
The invention relates to the field of decompression and buffering, in particular to a bidirectional movement buffering device for a large gantry type multidirectional correction hydraulic machine.
Background
The large gantry type multidirectional correction hydraulic machine mainly comprises an upper beam, an upright post and a hydraulic machine base 6, the weight is about dozens of tons, the hydraulic machine base 6 is easy to shake left and right when being hoisted and collides with the upright post, and the installation precision, the processing precision and the upright post supporting strength are influenced. When the machining position of the gantry type multidirectional correction hydraulic machine needs to be changed, the walking motor 1 drives the gear to rotate, the walking wheel 4 on the stand moves back and forth along the walking guide rail 8 of the hydraulic machine base 6, when the walking action is completed, namely when the walking motor 1 stops working, the walking wheel 4 loses power in the moment, large impact can be generated on the hydraulic machine base 6, strong vibration and noise are generated, harm is caused to the hydraulic machine, the service life of the hydraulic machine is shortened, the machining precision is influenced, and the health of workers can be influenced. In addition, the parking position of the walking wheels 4 is completely grasped by the experience of workers, and the accurate position cannot be reached.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bidirectional movement buffer device for a large gantry type multidirectional correction hydraulic machine, which solves the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a bidirectional movement buffer for large-scale planer-type multidirectional correction hydraulic press, includes walking wheel buffer gear and side wheel buffer gear, side wheel buffer gear is including connecting base, link, first buffering group and second buffering group, it is connected with the stand curb plate to connect the base, first buffering group passes through the link and is connected the base, and second buffering group installs between first buffering group and connection base, and the other end of first buffering group is equipped with running gear, running gear links to each other with the hydraulic press side rail base side of hydraulic press base.
The walking wheel buffer mechanism comprises a mounting seat sleeved with a walking guide rail, a positioning bolt is arranged on the side face of the mounting seat, two side plates, a rear plate fixed with one end of each of the two side plates and a proximity switch located on the outer side of the rear plate are arranged on the surface of the mounting seat, a front plate and a middle plate are connected between the two side plates in a sliding mode, a middle buffer spring is installed between the front plate and the middle plate, and a buffer column is installed between the middle plate and the rear plate.
Further inject, first buffer group is fixed with the supporting seat including the protective housing, the one end of protective housing, and the inboard sliding connection of protective housing has the supporting shoe, is connected with rubber buffer post and little buffer spring between supporting seat and the supporting shoe, and the other end of supporting shoe is equipped with running gear.
Further inject, the second buffering group includes and connects the big buffering spring case that the base is fixed, the supporting seat cup joints with the one end of big buffering spring case that slides, is connected with big buffer spring between supporting seat and the connection base.
Further limiting, the travelling mechanism comprises two support frames connected with the support blocks, and a side wheel is connected to a shaft between the two support frames through a bearing.
Further defined, the surface of the side wheel is coated with a side wheel rubber sleeve.
Further prescribe a limit, the surface of supporting seat is equipped with the rubber pad.
Further inject, the buffering post includes buffering post base and buffering post pole, and the one end of buffering post base is fixed with the back plate, and the spacing head of buffering post pole one end and the inner wall sliding connection of buffering post base are equipped with buffering post spring between spacing head and the back plate, and the one end that the back plate was kept away from to buffering post base is equipped with the spacing buffering post lid to spacing head, and the buffering post rubber pad of the buffering post pole other end offsets with the intermediate lamella.
Further inject, the inboard of curb plate is equipped with the spout, and the both ends of front bezel and intermediate lamella are equipped with the slider respectively, slider and spout sliding connection.
Further limit, one side of the front plate, which is far away from the middle buffer spring, is provided with a buffer rubber pad.
Further, the connecting frame adopts a diamond frame which is respectively hinged at four points.
The invention has the following beneficial effects: according to the invention, the problems of inclination and collision buffering and the problem of stopping and buffering of the travelling wheels during base installation are respectively solved through the side wheel buffer mechanism and the travelling wheel buffer mechanism; the side wheel buffer mechanism adopts a double buffer structure, the side wheel is additionally provided with a side wheel rubber sleeve, and the supporting seat is also provided with a layer of rubber pad, so that four-stage buffering can be realized; the traveling wheel buffer mechanism also utilizes a double buffer structure, and the front plate is provided with a layer of rubber pad, so that three-order buffering can be realized; the walking wheel buffer is additionally provided with a proximity switch to be connected with the PLC, so that the walking wheel can be automatically decelerated and stopped.
Drawings
Fig. 1 is a schematic view of the installation position of the present invention.
FIG. 2 is a schematic view of a side wheel damper mechanism according to the present invention.
FIG. 3 is a cross-sectional view of the side wheel cushioning mechanism of the present invention.
Fig. 4 is a schematic view of a walking wheel buffering mechanism of the invention.
Fig. 5 is a sectional view of the road wheel buffer mechanism of the invention.
Fig. 6 is a schematic structural view of a buffer column of the walking wheel buffer mechanism of the invention.
Fig. 7 is a cross-sectional view of a cushioning column of the road wheel cushioning mechanism.
In the figure: 1. a traveling motor; 2. a column side plate; 3. a side wheel buffer mechanism; 31. connecting a base; 32. a connecting frame; 33. a second buffer group; 331. a large buffer spring barrel; 332. a large buffer spring; 34. a first buffer group; 341. a supporting base; 342. a rubber cushion column; 343. a small buffer spring; 344. a supporting block; 345. a protective shell; 35. a support frame; 36. a side wheel; 37. a side wheel rubber sleeve; 38. a rubber pad; 39. a bearing; 4. a traveling wheel; 5. side rails of a base of the hydraulic machine; 6. a hydraulic press base; 7. a traveling wheel buffer mechanism; 71. a proximity switch; 72. a buffer column; 721. a cushion column base; 722. a buffer post rod; 723. a cushion column rubber pad; 724. a strut spring; 725. a cushion post cover; 73. a rear plate; 74. a side plate; 75. a middle plate; 76. a middle buffer spring; 77. a front plate; 78. a mounting seat; 79. positioning the bolt; 8. a traveling guide rail.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a bidirectional movement buffer device for a large gantry type multidirectional correction hydraulic machine comprises a walking wheel buffer mechanism 7 and a side wheel 36 buffer mechanism 3, wherein the side wheel 36 buffer mechanism 3 comprises a connecting base 31, a connecting frame 32, a first buffer group 34 and a second buffer group 33, the connecting base 31 is connected with a vertical column side plate 742 through bolts, the first buffer group 34 is connected with the connecting base 31 through the connecting frame 32, the connecting frame 32 adopts a diamond frame with four points respectively hinged, when the second buffer group 33 is subjected to telescopic shock absorption, the angle can be increased or reduced to limit the first buffer group 34, the second buffer group 33 is installed between the first buffer group 34 and the connecting base 31, the other end of the first buffer group 34 is provided with a walking mechanism, and the walking mechanism is connected with a side rail 5 of a hydraulic machine base 6 on the side face of the hydraulic machine base 6.
Referring to fig. 4 and 5, the walking wheel buffering mechanism 7 includes an installation base 78 sleeved with the walking guide rail 8, a positioning bolt 79 is arranged on a side surface of the installation base 78, the installation base 78 can be arbitrarily installed at any position of the walking guide rail 8 through the positioning bolt 79 by friction between the positioning bolt 79 and the walking guide rail 8, a passage through which the walking wheel 4 passes is arranged on an inner side of the installation base 78, two side plates 74, a rear plate 73 fixed to one ends of the two side plates 74 and an approach switch 71 located on an outer side of the rear plate 73 are arranged on a surface of the installation base 78, a front plate 77 and a middle plate 75 are slidably connected between the two side plates 74, a sliding groove is arranged on an inner side of the side plate 74, sliding blocks are respectively arranged at two ends of the front plate 77 and the middle plate 75, the sliding blocks are slidably connected with the sliding groove, a buffering rubber pad 38 is arranged on one side of the front plate 77, which is far away from the middle buffering spring 76, a middle buffering spring 76 is arranged between the front plate 77 and the middle plate 75, and a buffering column 72 is arranged between the middle plate 75 and the back plate 73.
Referring to fig. 3, the first buffer set 34 includes a protection shell 345, a supporting base 341 is fixed at one end of the protection shell 345, a rubber pad 38 is disposed on an outer surface of the supporting base 341, a supporting block 344 is slidably connected to an inner side of the protection shell 345, the supporting block 344 and the protection shell 345 form a sliding pair through a clamping strip and a clamping groove, a small buffer spring 343 and a large buffer spring 342 are connected between the supporting base 341 and the supporting block 344, a traveling mechanism is disposed at the other end of the supporting block 344, the second buffer set 33 includes a large buffer spring barrel 331 fixed to the connection base 31, the supporting base 341 is slidably sleeved with one end of the large buffer spring barrel 331, and a large buffer spring 332 is connected between the supporting base 341 and the connection base 31.
Referring to fig. 2, the traveling mechanism comprises two support frames 35 connected with support blocks 344, a side wheel 36 is connected to a shaft between the two support frames 35 through a bearing 39, a side wheel rubber sleeve 37 is coated on the surface of the side wheel 36, and the side wheel 36 travels on a side rail 5 of the base of the hydraulic machine.
Referring to fig. 6 and 7, the buffer column 72 includes a buffer column base 721 and a buffer column rod 722, one end of the buffer column base 721 is fixed to the rear plate 73, a limiting head at one end of the buffer column rod 722 is slidably connected to an inner wall of the buffer column base 721, a buffer column spring 724 is disposed between the limiting head and the rear plate 73, a buffer column cover 725 limiting the limiting head is disposed at one end of the buffer column base 721 far away from the rear plate 73, and a buffer column rubber pad 723 at the other end of the buffer column rod 722 is abutted to the intermediate plate 75.
The invention solves the problems of inclination and collision buffer and the problem of stop buffer of the travelling wheels 4 when the base is installed respectively through the side wheel 36 buffer mechanism 3 and the travelling wheel buffer mechanism 7; the side wheel 36 buffer mechanism 3 adopts a double buffer structure, a side wheel rubber sleeve 37 is added on the side wheel 36, and a layer of rubber pad 38 is also arranged on the supporting seat 341, so that four-step buffering can be realized; the traveling wheel buffer mechanism 7 also adopts a double buffer structure, and a layer of rubber pad 38 is arranged on the front plate 77, so that three-order buffering can be realized; the walking wheel 4 is additionally provided with a buffer proximity switch 71 to be connected with a PLC controller, so that the walking wheel 4 can be automatically decelerated and stopped.
The working principle of the invention in operation is as follows: the side wheel buffer mechanism 3 is installed on the upright post side plate 2 through bolts, the side wheel 36 and the hydraulic machine base side rail 5 are installed at the same height, the hydraulic machine base 6 can collide with the upright post side plate 2 when being hoisted, and after the side wheel buffer mechanism 3 is installed, the hydraulic machine base 6 can play a role in buffering when being in contact with the side wheel 36 of the side wheel buffer mechanism 3. A side wheel rubber sleeve 37 is arranged on a side wheel 36 of the side wheel buffer mechanism 3, and when the side wheel 36 is contacted with the hydraulic machine base 6, the side wheel rubber sleeve 37 can play a first-order buffer role; the side wheels 36 are installed on the supporting frame 35, the supporting frame 35 is installed on the supporting block 344, the clamping strips are installed on two sides of the supporting block 344, the clamping strips are matched with the clamping grooves in the inner wall of the protective shell 345, due to strong extrusion, the clamping strips move along the clamping grooves, the rubber buffer columns 342 and the small buffer springs 343 are compressed, and a second-stage buffer effect is achieved; meanwhile, the supporting seat 341 also compresses the large buffer spring 332 in the large buffer spring cylinder 331 to play a third-order buffer role; when the rubber buffer column 342, the small buffer spring 343 and the large buffer spring 332 are compressed to a certain position, the rubber pad 38 on the supporting base 341 contacts with the large buffer spring cylinder 331 to play a fourth-stage buffer role; and when the hoisting is finished, the buffering of each stage is gradually restored to the initial state.
The walking wheel buffer mechanism 7 is fixed on the walking guide rail 8 through a positioning bolt 79, all structures are installed on the installation seat 78, when the proximity switch 71 receives signals of the walking wheel 4 and transmits the signals to the PLC controller, the PLC controller controls the walking motor 1 to gradually decelerate, the walking wheel 4 slowly contacts the front plate 77 through a walking wheel channel of the installation seat 78, and a buffer rubber pad on the front plate 77 contacts the walking wheel 4 to form first-stage buffering; the front plate 77 moves in the slide groove of the side plate 74 while pressing the intermediate damper spring 76 installed between the front plate 77 and the intermediate plate 75 to form second-stage damping; the middle plate 75 also moves in the sliding grooves of the side plates 74, the middle plate 75 presses the buffer post rod 722, and the buffer post rod 722 presses the buffer post spring 724 in the buffer post base 721 to form third-order buffer until the travelling wheels 4 are completely stopped and stabilized.
It should be noted that, in this document, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a two-way movement buffer for large-scale planer-type multidirectional correction hydraulic press, includes walking wheel buffer gear and side wheel buffer gear, its characterized in that: the side wheel buffer mechanism comprises a connecting base, a connecting frame, a first buffer group and a second buffer group, the connecting base is connected with the side plate of the upright column, the first buffer group is connected with the connecting base through the connecting frame, the second buffer group is arranged between the first buffer group and the connecting base, the other end of the first buffer group is provided with a travelling mechanism, and the travelling mechanism is connected with a side rail of the hydraulic machine base on the side surface of the hydraulic machine base;
the walking wheel buffer mechanism comprises a mounting seat sleeved with a walking guide rail, a positioning bolt is arranged on the side face of the mounting seat, two side plates, a rear plate fixed with one end of each of the two side plates and a proximity switch located on the outer side of the rear plate are arranged on the surface of the mounting seat, a front plate and a middle plate are connected between the two side plates in a sliding mode, a middle buffer spring is installed between the front plate and the middle plate, and a buffer column is installed between the middle plate and the rear plate.
2. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 1, wherein: first buffer group is fixed with the supporting seat including the protective housing, the one end of protective housing, and the inboard sliding connection of protective housing has the supporting shoe, is connected with rubber buffer post and little buffer spring between supporting seat and the supporting shoe, and the other end of supporting shoe is equipped with running gear.
3. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 2, wherein: the second buffer group comprises a large buffer spring barrel fixed with the connecting base, the supporting seat is in sliding sleeve connection with one end of the large buffer spring barrel, and a large buffer spring is connected between the supporting seat and the connecting base.
4. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 2, wherein: the walking mechanism comprises two supporting frames connected with the supporting blocks, and a side wheel is connected to a shaft between the two supporting frames through a bearing.
5. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 4, wherein: the surface of the side wheel is coated with a side wheel rubber sleeve.
6. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 2, wherein: the outer surface of the supporting seat is provided with a rubber pad.
7. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 1, wherein: the buffering post includes buffering post base and buffering post pole, and the one end of buffering post base is fixed with the back plate, and the spacing head of buffering post pole one end and the inner wall sliding connection of buffering post base are equipped with buffering post spring between spacing head and the back plate, and the one end that the back plate was kept away from to buffering post base is equipped with spacing buffering post lid to spacing head, and the buffering post rubber pad of the buffering post pole other end offsets with the intermediate lamella.
8. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as claimed in claim 7, wherein: the inboard of curb plate is equipped with the spout, and the both ends of front bezel and intermediate lamella are equipped with the slider respectively, slider and spout sliding connection.
9. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine as recited in claim 8, wherein: and a buffer rubber pad is arranged on one side of the front plate, which is far away from the middle buffer spring.
10. The bidirectional movement buffer device for the large gantry type multidirectional straightening hydraulic machine according to any one of claims 1 to 9, characterized in that: the connecting frame adopts a diamond frame with four hinged points.
CN202110986243.7A 2021-08-26 2021-08-26 Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine Active CN113623359B (en)

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CN202110986243.7A CN113623359B (en) 2021-08-26 2021-08-26 Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine

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CN202110986243.7A CN113623359B (en) 2021-08-26 2021-08-26 Bidirectional movement buffer device for large gantry type multidirectional correction hydraulic machine

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CN113623359B true CN113623359B (en) 2022-11-08

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Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201049521Y (en) * 2007-03-15 2008-04-23 南通锻压设备有限公司 Gantry type straightening hydraulic press
CN204677681U (en) * 2015-06-11 2015-09-30 济南飞迈数控科技有限公司 A kind of both sides, numerical control plasma cutting machine gantry novel stepping aluminum alloy reduction-box apparatus
CN107263441A (en) * 2016-04-07 2017-10-20 北京天道和元科技有限公司 A kind of precise positioning running gear and method suitable for crusing robot
CN107511492B (en) * 2017-09-12 2019-01-01 大连理工大学 A kind of lathe fast roll setting device
WO2020197491A1 (en) * 2019-03-25 2020-10-01 Dandelion Environmental Technology Private Limited Compact precision angular-displacement-limiting impact-resistant vibration-isolating buffering platform for compact optoelectronic equipment
CN209800997U (en) * 2019-04-14 2019-12-17 连云港双惠机械有限公司 Centrifuge installation base
CN211687864U (en) * 2019-11-29 2020-10-16 江苏天利电梯有限公司 Buffer type elevator car
CN212264296U (en) * 2020-04-26 2021-01-01 宁海县振业汽车部件有限公司 Novel punch boss benchmark hole mould
CN213740464U (en) * 2020-08-24 2021-07-20 山东聚亿新型建材有限公司 Hydraulic tamper with good stability

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