CN108386502A - A kind of stretcher - Google Patents
A kind of stretcher Download PDFInfo
- Publication number
- CN108386502A CN108386502A CN201810355062.2A CN201810355062A CN108386502A CN 108386502 A CN108386502 A CN 108386502A CN 201810355062 A CN201810355062 A CN 201810355062A CN 108386502 A CN108386502 A CN 108386502A
- Authority
- CN
- China
- Prior art keywords
- stretcher
- guide post
- footstock
- spring
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0808—Extension coil springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention discloses a kind of stretchers, including：Bottom plate；The lower end of stretcher guide post is fixedly connected on the upper surface of bottom plate；Stretcher guide post body is by the upper ends of stretcher guide post in stretcher guide post, and the outer wall of stretcher guide post body is slidably connected to the inner wall of stretcher guide post；The lower face of stretcher guide post body opens up three first through hole along its left and right directions；Bottom plate is run through in the tail portion of three positioning bolts from the bottom to top, and each positioning bolt is through in a first through hole；The top of first through hole is fixed in the upper end of each stretcher cylinder, and each stretcher cylindrical slid is connected to positioning bolt；Each spring is between stage portion and bottom plate；Stretcher head is fixedly connected on the upper surface of stretcher guide post body by stretcher footstock.The present invention can will avoid the rotation of spring by spring retainer block so that spring, which can be stablized, plays telescopic adjustment function.
Description
Technical field
The present invention relates to the technical field of stretcher more particularly to a kind of technical fields of stretcher.
Background technology
Chain is to loosen due to being driven after own backlash and installation, and long-time service easily causes transmission efficiency decline, therefore sets
Set stretcher.Existing stretcher general structure design is complicated, uses complex steps；Meanwhile existing stretcher spring is being put
Loose state may rotate, and influence the telescopic adjustment function of spring.
Invention content
Against the above deficiency, the object of the present invention is to provide a kind of stretchers, can facilitate automatic adjusument chain.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of stretcher, which is characterized in that including：
Bottom plate；
Stretcher guide post, the stretcher guide post are the shell of both ends open, and the lower end of the stretcher guide post, which is fixed, to be connected
It is connected to the upper surface of the bottom plate；
Stretcher guide post body, the stretcher guide post body are led by the upper ends of the stretcher guide post in the stretcher
In column, and the outer wall of the stretcher guide post body is slidably connected to the inner wall of the stretcher guide post；The stretcher guide post
The lower face of body opens up three first through hole along its left and right directions；
The bottom plate, and each positioning are run through in the tail portion of three positioning bolts, three positioning bolts from the bottom to top
In bolt-through a to first through hole；
The first through hole is fixed in the upper surface of three stretcher cylinders, the stage portion of each stretcher cylinder
Top；Second through-hole of each stretcher cylinder is right against a positioning bolt；The second through-hole wall sliding connects
It is connected to the outer wall of the positioning bolt；
Three springs, each spring are placed on the outer wall of a stretcher cylinder；The upper end of each spring is fixed
It is fixed on the bottom plate in the lower end of the stage portion, each spring；
Stretcher head, the stretcher head are fixedly connected on the upper end of the stretcher guide post body by stretcher footstock
Face.
Above-mentioned a kind of stretcher, wherein the stretcher footstock is the plank that section is c-type；The stretcher footstock
Opening up, the lower face of the stretcher footstock is fixedly connected on the upper end of the stretcher guide post body by 4 first screws
Face.
Above-mentioned a kind of stretcher, wherein the stretcher head includes tensioned portion and inlay card portion；The tensioned portion is arch
Plate, upward, an inlay card portion is arranged in the lower face of the tensioned portion to the camber line of the tensioned portion；The inlay card portion is that section is
The small end of the plank of convex, the inlay card portion is fixed on the lower face of the tensioned portion, and the big end in the inlay card portion is downward；Institute
Inlay card portion is stated to be slid by one end of the left and right directions of the stretcher footstock in the slot of the stretcher footstock.
Above-mentioned a kind of stretcher, wherein two second screws, two second screws run through the stretcher top from the bottom to top
In seat to the stretcher head；And two second screws are located at the both ends of the left and right directions of the stretcher footstock.
Above-mentioned a kind of stretcher, wherein two circular holes, each circle are opened up in the middle part of the upper surface of the stretcher footstock
Hole is through in the slot；Two first screws are located in a circular hole.
Above-mentioned a kind of stretcher, wherein each stretcher cylinder includes the stage portion and axle portion；The stage portion
Lower face connect the upper surface of the axle portion；The lower face of the axle portion opens up second through-hole, and second through-hole passes through
Pass to the upper surface of the stage portion.
Above-mentioned a kind of stretcher, wherein it is vertically square that the end face in the front-back direction of the stretcher guide post body opens up one
To groove.
Above-mentioned a kind of stretcher, wherein including limit plug, the limit plug is set to the front and back of the stretcher guide post
The end face in direction, and the limit plug is located at the same side in the front-back direction with the groove；The limit plug is through to institute
It states in groove.
Above-mentioned a kind of stretcher, wherein including three spring retainer blocks, the three spring retainer blocks are set to the bottom plate
Upper surface；And each spring retainer block is close to the left side of a positioning bolt 4；Each spring retainer block is solid
A fixed spring.
With above technical scheme, following advantageous effect can be reached：
1, the present invention installs spring by setting in stretcher guide post, and then the telescopic adjustment function of spring is adaptively adjusted
Whole the tensioning of the chain degree, to effectively adjust chain.
2, the present invention can will avoid the rotation of spring by spring retainer block so that spring, which can be stablized, plays telescopic adjustment work(
Energy.
Description of the drawings
Fig. 1 is a kind of half-sectional front view of stretcher of the present invention；
Fig. 2 is a kind of side view of stretcher of the present invention；
Fig. 3 is a kind of vertical view of the stretcher footstock of stretcher of the present invention；
Fig. 4 is the sectional view of the A-A of Fig. 3；
Fig. 5 is a kind of sectional view of the stretcher cylinder of stretcher of the present invention；
Fig. 6 is a kind of sectional view of the bottom plate of stretcher of the present invention；
Fig. 7 is a kind of vertical view of the bottom plate of stretcher of the present invention.
Fig. 8 is a kind of front view of stretcher of the present invention.
In attached drawing：1, bottom plate；11, spring retainer block；2, stretcher guide post；3, stretcher guide post body；31, first through hole；
32, groove；33, limit plug；4, positioning bolt；5, stretcher cylinder；51, stage portion；52, axle portion；521, the second through-hole；6, bullet
Spring；7, stretcher head；71, tensioned portion；72, inlay card portion；8, stretcher footstock；81, the first screw；82, slot；83, the second screw；
84, circular hole；9, label.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
Fig. 1 is a kind of half-sectional front view of stretcher of the present invention；Fig. 2 is a kind of side view of stretcher of the present invention
Figure；Fig. 3 is a kind of vertical view of the stretcher footstock of stretcher of the present invention；Fig. 4 is the sectional view of the A-A of Fig. 3；Fig. 5 is this
A kind of sectional view of the stretcher cylinder of stretcher of invention；Fig. 6 is a kind of sectional view of the bottom plate of stretcher of the present invention；Figure
7 be a kind of vertical view of the bottom plate of stretcher of the present invention.Fig. 8 is a kind of front view of stretcher of the present invention.
It refers to shown in Fig. 1 to Fig. 8, in a kind of preferred embodiment, a kind of stretcher, wherein including：
Bottom plate 1.
Stretcher guide post 2, stretcher guide post 2 are the shell of both ends open, and the lower end of stretcher guide post 2 is fixedly connected on bottom
The upper surface of plate 1.
Stretcher guide post body 3, stretcher guide post body 3 by the upper ends of stretcher guide post 2 in stretcher guide post 2, and
And the outer wall of stretcher guide post body 3 is slidably connected to the inner wall of stretcher guide post 2；The lower face of stretcher guide post body 3 is along its left side
Right direction opens up three first through hole 31.
Bottom plate 1 is run through in the tail portion of three positioning bolts 4, three positioning bolts 4 from the bottom to top, and each positioning bolt 4 runs through
To a first through hole 31.
First through hole 31 is fixed in the upper surface of three stretcher cylinders 5, the stage portion 51 of each stretcher cylinder 5
Top；Second through-hole 521 of each stretcher cylinder 5 is right against a positioning bolt 4；Second through-hole, 521 inner wall is slidably connected
In the outer wall of positioning bolt 4.
Three springs 6, each spring 6 are placed on the outer wall of a stretcher cylinder 5；The upper end of each spring 6 is fixed
It is fixed on bottom plate 1 in the lower end of stage portion 51, each spring 6.
Stretcher head 7, stretcher head 7 are fixedly connected on the upper surface of stretcher guide post body 3 by stretcher footstock 8.
It these are only preferred embodiments of the present invention, be not intended to limit the implementation manners and the protection scope of the present invention.
Further, in a kind of preferred embodiment, stretcher footstock 8 is the plank that section is c-type；Stretcher footstock 8
Opening up, the lower face of stretcher footstock 8 is fixedly connected on the upper surface of stretcher guide post body 3 by 4 first screws 81.
Further, in a kind of preferred embodiment, stretcher head 7 includes tensioned portion 71 and inlay card portion 72；Tensioned portion 71 is
Cambered plate, upward, an inlay card portion 72 is arranged in the lower face of tensioned portion 71 to the camber line of tensioned portion 71；Inlay card portion 72 is that section is type
The plank of type, the small end in inlay card portion 72 are fixed on the lower face of tensioned portion 71, and the big end in inlay card portion 72 is downward；Inlay card portion 72 is by opening
One end of the left and right directions of tight device footstock 8 slides into the slot 82 of stretcher footstock 8.
Further, in a kind of preferred embodiment, two second screws 83, two second screws 83 run through stretcher from the bottom to top
In footstock 8 to stretcher head 7；And two second screws 83 are located at the both ends of the left and right directions of stretcher footstock 8.
Further, in a kind of preferred embodiment, two circular holes 84 are opened up in the middle part of the upper surface of stretcher footstock 8, it is each
Circular hole 84 is through in slot 82；Two first screws 841 are located in a circular hole 84.
Further, in a kind of preferred embodiment, each stretcher cylinder 5 includes stage portion 51 and axle portion 52；Step
The upper surface of the upper surface connection axle portion 52 in portion 51；The lower face of axle portion 52 opens up the second through-hole 521, the perforation of the second through-hole 521
To the upper surface of stage portion 51.
Further, in a kind of preferred embodiment, the end face in the front-back direction of stretcher guide post body 3 opens up one vertically
The groove 32 in direction.
Further, in a kind of preferred embodiment, including, limit plug 33, before limit plug 33 is set to stretcher guide post 2
The end face of rear direction, and limit plug 33 is located at the same side in the front-back direction with groove 32；Limit plug 33 is through to groove 32
It is interior.
Further, in a kind of preferred embodiment, including：Label 9, label 9 are set to the front and back of stretcher guide post body 3
To end face, and label 9 and groove 32 are located at same end face；The top of label 9 is green, and the middle part of label 9 is yellow,
The lower part of label 9 is red.Indicate that spring is in running order when stretcher guide post body 3 only exposes green, when stretcher is led
It indicates that spring is in alert status when cylinder 3 exposes yellow, indicates that spring is in danger when stretcher guide post body 3 exposes red
State.
Further, in a kind of preferred embodiment, including：Three spring retainer blocks 11, three spring retainer blocks 11 are set to bottom
The upper surface of plate 1；And each spring retainer block 11 is close to the left side of a positioning bolt 4；Each spring retainer block 11 fixes one
Spring 6.
In addition to the implementation, the present invention also has following working method：
In use, bottom plate is fixed on link chain mechanism, and stretcher head 7 is placed under the chain of link chain mechanism；Work as chain
Tensile force it is insufficient, can cause to 7 time insufficient pressures of stretcher head, so that the elastic force of spring 6 is more than lower pressure, spring 6
Elastic force make stretcher head 7 rise so that chain tighten, improve the tensioning of the chain power.
It these are only preferred embodiments of the present invention, be not intended to limit the implementation manners and the protection scope of the present invention, it is right
For those skilled in the art, it should can appreciate that and all be replaced with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (9)
1. a kind of stretcher, which is characterized in that including：
Bottom plate；
Stretcher guide post, the stretcher guide post are the shell of both ends open, and the lower end of the stretcher guide post is fixedly connected on
The upper surface of the bottom plate；
Stretcher guide post body, the stretcher guide post body is by the upper ends of the stretcher guide post in the stretcher guide post
It is interior, and the outer wall of the stretcher guide post body is slidably connected to the inner wall of the stretcher guide post；The stretcher guide post body
Lower face open up three first through hole along its left and right directions；
The bottom plate, and each positioning bolt are run through in the tail portion of three positioning bolts, three positioning bolts from the bottom to top
It is through in a first through hole；
The top of the first through hole is fixed in the upper surface of three stretcher cylinders, the stage portion of each stretcher cylinder；
Second through-hole of each stretcher cylinder is right against a positioning bolt；Second through-hole wall is slidably connected to institute
State the outer wall of positioning bolt；
Three springs, each spring are placed on the outer wall of a stretcher cylinder；Institute is fixed in the upper end of each spring
Stage portion is stated, the bottom plate is fixed in the lower end of each spring；
Stretcher head, the stretcher head are fixedly connected on the upper surface of the stretcher guide post body by stretcher footstock.
2. a kind of stretcher according to claim 1, which is characterized in that the stretcher footstock is the plank that section is c-type；
The stretcher footstock it is opening up, the lower face of the stretcher footstock is fixedly connected on described by 4 first screws
The upper surface of tight device guide post body.
3. a kind of stretcher according to claim 2, which is characterized in that the stretcher head includes tensioned portion and inlay card portion；
The tensioned portion is cambered plate, and upward, an inlay card portion is arranged in the lower face of the tensioned portion to the camber line of the tensioned portion；Institute
It is the plank that section is convex to state inlay card portion, and the small end in the inlay card portion is fixed on the lower face of the tensioned portion, the card
The big end in embedding portion is downward；The inlay card portion slides into the stretcher footstock by one end of the left and right directions of the stretcher footstock
Slot in.
4. a kind of stretcher according to claim 2, which is characterized in that two second screws, two second screws by down toward
It is upper to run through in the stretcher footstock to the stretcher head；And two second screws are located at the stretcher footstock
Left and right directions both ends.
5. a kind of stretcher according to claim 2, which is characterized in that opened up in the middle part of the upper surface of the stretcher footstock
Two circular holes, each circular hole are through in the slot；Two first screws are located in a circular hole.
6. a kind of stretcher according to claim 1, which is characterized in that each stretcher cylinder includes the stage portion
And axle portion；The lower face of the stage portion connects the upper surface of the axle portion；It is logical that the lower face of the axle portion opens up described second
Hole, second through-hole are penetrated through to the upper surface of the stage portion.
7. a kind of stretcher according to claim 1, which is characterized in that one end in the front-back direction of the stretcher guide post body
Face opens up a groove along the vertical direction.
8. a kind of stretcher according to claim 2, which is characterized in that including limit plug, the limit plug is set to described
The end face in the front-back direction of stretcher guide post, and the limit plug is located at the same side in the front-back direction with the groove；Institute
Limit plug is stated to be through in the groove.
9. a kind of stretcher according to claim 1, which is characterized in that including：Three spring retainer blocks, three spring retainers
Block is set to the upper surface of the bottom plate；And each spring retainer block is close to the left side of a positioning bolt；It is each
The spring retainer block fixes a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810355062.2A CN108386502B (en) | 2018-04-19 | 2018-04-19 | Tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810355062.2A CN108386502B (en) | 2018-04-19 | 2018-04-19 | Tensioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386502A true CN108386502A (en) | 2018-08-10 |
| CN108386502B CN108386502B (en) | 2023-05-26 |
Family
ID=63065566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810355062.2A Active CN108386502B (en) | 2018-04-19 | 2018-04-19 | Tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386502B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106325A1 (en) * | 1982-10-15 | 1984-04-25 | Joh. Winklhofer & Söhne | Tensioner for chain drive |
| US5984815A (en) * | 1997-03-28 | 1999-11-16 | Morse Tec Europe S.P.A. | Spring blade tensioner with curved blade ends |
| CN2577047Y (en) * | 2002-10-08 | 2003-10-01 | 中国嘉陵工业股份有限公司（集团） | Engine chain tensioner |
| JP2005325857A (en) * | 2004-05-12 | 2005-11-24 | Borg Warner Morse Tec Japan Kk | Blade tensioner |
| CN2879618Y (en) * | 2006-03-03 | 2007-03-21 | 陈厚靖 | Means for automatically tensioning the chain of miniature tillage machine |
| JP2011144819A (en) * | 2010-01-12 | 2011-07-28 | Ntn Corp | Hydraulic seal type chain tensioner |
| CN202251762U (en) * | 2011-08-29 | 2012-05-30 | 高喜 | Tensioner |
| CN103791049A (en) * | 2013-12-11 | 2014-05-14 | 余姚市电波机械有限公司 | Automatic tensioner of automobile engine |
| US20140287859A1 (en) * | 2012-10-22 | 2014-09-25 | Litens Automotive Partnership | Tensioner with increased damping |
| CN204175892U (en) * | 2014-10-27 | 2015-02-25 | 米亚斯物流设备（昆山）有限公司 | A kind of telescopic fork chain tension adjustable apparatus |
| EP2937598A2 (en) * | 2014-04-24 | 2015-10-28 | Litens Automotive Partnership | Tensioner with increased damping |
| CN210371865U (en) * | 2019-07-31 | 2020-04-21 | 绵阳富乐源机械科技有限公司 | Hydraulic tensioner |
-
2018
- 2018-04-19 CN CN201810355062.2A patent/CN108386502B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106325A1 (en) * | 1982-10-15 | 1984-04-25 | Joh. Winklhofer & Söhne | Tensioner for chain drive |
| US5984815A (en) * | 1997-03-28 | 1999-11-16 | Morse Tec Europe S.P.A. | Spring blade tensioner with curved blade ends |
| CN2577047Y (en) * | 2002-10-08 | 2003-10-01 | 中国嘉陵工业股份有限公司（集团） | Engine chain tensioner |
| JP2005325857A (en) * | 2004-05-12 | 2005-11-24 | Borg Warner Morse Tec Japan Kk | Blade tensioner |
| CN2879618Y (en) * | 2006-03-03 | 2007-03-21 | 陈厚靖 | Means for automatically tensioning the chain of miniature tillage machine |
| JP2011144819A (en) * | 2010-01-12 | 2011-07-28 | Ntn Corp | Hydraulic seal type chain tensioner |
| CN202251762U (en) * | 2011-08-29 | 2012-05-30 | 高喜 | Tensioner |
| US20140287859A1 (en) * | 2012-10-22 | 2014-09-25 | Litens Automotive Partnership | Tensioner with increased damping |
| CN103791049A (en) * | 2013-12-11 | 2014-05-14 | 余姚市电波机械有限公司 | Automatic tensioner of automobile engine |
| EP2937598A2 (en) * | 2014-04-24 | 2015-10-28 | Litens Automotive Partnership | Tensioner with increased damping |
| CN204175892U (en) * | 2014-10-27 | 2015-02-25 | 米亚斯物流设备（昆山）有限公司 | A kind of telescopic fork chain tension adjustable apparatus |
| CN210371865U (en) * | 2019-07-31 | 2020-04-21 | 绵阳富乐源机械科技有限公司 | Hydraulic tensioner |
Non-Patent Citations (1)
| Title |
|---|
| 刘际仁,葛红: "多楔带自动张紧器简介" * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386502B (en) | 2023-05-26 |
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Denomination of invention: A type of tensioner Effective date of registration: 20231205 Granted publication date: 20230526 Pledgee: Agricultural Bank of China Limited Shanghai Songjiang Sub-branch Pledgor: SHANGHAI LILAI CHAIN Co.,Ltd. Registration number: Y2023980069204 |