CN104925639A - Zero-gravity linear counterforce arm - Google Patents
Zero-gravity linear counterforce arm Download PDFInfo
- Publication number
- CN104925639A CN104925639A CN201510250885.5A CN201510250885A CN104925639A CN 104925639 A CN104925639 A CN 104925639A CN 201510250885 A CN201510250885 A CN 201510250885A CN 104925639 A CN104925639 A CN 104925639A
- Authority
- CN
- China
- Prior art keywords
- agravic
- sway
- straight line
- guide rod
- line counter
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
Abstract
The invention discloses a zero-gravity linear counterforce arm which comprises a supporting rod. A cross beam is arranged at the top end of the supporting rod. Hanging lugs are arranged at the two ends of the cross beam, and zero-gravity spring balancers are hung on the two hanging lugs respectively; the middle of the supporting rod is sleeved with a vertical moving piece which can vertically slide along the supporting rod, and the lower ends of the zero-gravity spring balancers are connected with the vertical moving piece; a horizontal moving piece is fixed on the vertical moving piece, and a fixing piece is arranged at one end of the horizontal moving piece. Hovering can be achieved in the whole travel through the zero-gravity spring balancers, the problems of spring tensioner balancing points and hovering of an existing counterforce arm are solved, and feeding and discharging operation before and after assembling operation and zero-gravity operation in the assembling process are facilitated. The two zero-gravity spring balancers of the same structure are used as the same time for balancing the weight of the vertical moving piece and the weight of the horizontal moving piece, the vertical moving piece is made to vertically slide along the supporting rod smoothly, and the phenomenon that large resistance is generated by friction between the vertical moving piece and the supporting rod due to the fact that the vertical moving piece is unevenly stressed is avoided.
Description
Technical field
The present invention relates to agravic straight line counter-force arm.
Background technology
Current straight line counter-force arm product on the market all can not realize the agravic operation in whole stroke range, lot of domestic and foreign producer adopts spring tightener to hang balanced load weight, because spring tightener can only have an equilibrium point in stroke range, when causing operating counter-force arm, needs apply larger downforce, increase the labour intensity of operator, particularly use when pressing down the pneumatic or electric screw driver of startup formula, apply larger downforce and easily twist askew screw, affect assembly quality, even assembly part can be destroyed, if for a glue operation, a glue can be caused uneven.
A point can only be hovered over because conventional tensioners hangs counter-force arm, after erecting work terminates, instrument can only get back to the initial position of setting, this initial position is set in the midway location of stroke usually, and vertex can not be got back to, if initial position is located at vertex, during operation, downforce can be very large.Screwdriver or glue rifle hover over midway location, are unfavorable for the loading and unloading operation before and after erecting work.
In addition, in current straight line counter-force arm design, top suspension assembly is without surface bearing, and when operating position changes rapidly around column, top suspension assembly can not follow free rotation in time, thus causes balancing device steel rope (or nylon rope) to wear and tear.
Summary of the invention
The present invention provides a kind of agravic straight line counter-force arm to solve deficiency of the prior art, can realize hovering, structure is simple, safe and reliable, is convenient to installing/dismounting and with low cost in whole stroke range.
For achieving the above object, the technical solution used in the present invention is:
A kind of agravic straight line counter-force arm, comprises strut bar, moves up and down part, sway part, agravic Spring balancer, and described supporting bar top is provided with crossbeam, and crossbeam two ends are provided with hanger, respectively on two hangers hangs an agravic Spring balancer; Be arranged with in the middle part of strut bar and move up and down part, moving up and down part can slide up and down along strut bar, agravic Spring balancer lower end with move up and down part and be connected; Fix sway part moving up and down on part, sway part moves with moving up and down part, is provided with connecting element in sway part one end.Hovering can be realized by agravic Spring balancer within the scope of effective travel, solve existing counter-force arm spring tightener equilibrium point and hovering problem, be convenient to agravic shop problem in loading and unloading operation before and after erecting work and fitting process.Can balance with the agravic Spring balancer of two same structures the weight moving up and down part and sway part simultaneously, make to move up and down part to slide up and down along strut bar smoothly, avoiding occurs to rub with strut bar owing to moving up and down part unbalance stress produces larger resistance.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described moves up and down part for cylindric, move up and down in the middle part of part and be provided with mounting groove, mounting groove laterally fixes sway part, be arranged with balancing device attaching parts moving up and down on the upside of part, balancing device attaching parts is connected with agravic Spring balancer lower end suspension hook.Further, described balancing device attaching parts is parallel with crossbeam, and the length of balancing device attaching parts makes agravic Spring balancer freely sagging just.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described moving up and down in part is provided with two cylindrical roller bearings, and making to move up and down part freely can rotate around strut bar 360 °, expands the opereating specification of connecting element.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, surface bearing is provided with between described crossbeam and strut bar, crossbeam freely can be rotated around strut bar 360 °, when operating position changes around strut bar, the crossbeam of upper end can drive agravic Spring balancer to adjust position rapidly, operating position region is larger, avoids agravic Spring balancer to produce torsional forces simultaneously and destroys agravic Spring balancer.Preferably, described agravic Spring balancer upper end suspension hook can 360 ° freely rotate.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described sway part comprises sway connecting panel and guide rod, guide rod is fixed by rotating shaft and sway connecting panel one end, joint arm end is provided with connecting element, guide rod can rotate around sway connecting panel, by rotating the horizontal operating position of adjustment connecting element, preferably, described guide rod has two.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described strut bar lower end is connected with base by butt flange seat, described butt flange seat is made up of a pair semi-circular butt flange sheet, and two semi-circular butt flange sheets are fastened by bolts.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described sway part comprises sway connecting panel and can along the guide rod of the free sway of sway connecting panel, connecting element is provided with in one end of guide rod, by guide rod along sway connecting panel sway, the horizontal operating position of adjustment connecting element.Further, described sway connecting panel is also provided with guide rod mounting blocks, and guide rod mounting blocks is provided with through hole, through hole is built-in with cylindrical roller bearing, and guide rod is along through hole sway, and guide rod is provided with limiting device, the stroke of restriction guide rod, the guide rod other end arranges connecting element.Preferably, described guide rod has two.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, magnetic part is provided with near connecting element one end in described guide rod mounting blocks, magnetic part is coated with cushion layer, described magnetic part can help connecting element to be adsorbed on guide rod mounting blocks, described cushion layer can avoid the direct impact of connecting element and magnetic part, extends the service life of magnetic part.
As a kind of preferred version of agravic straight line counter-force arm of the present invention, described strut bar lower end is connected with base by butt flange seat, described butt flange seat is made up of a pair semi-circular butt flange sheet, and two semi-circular butt flange sheets are fastened by bolts.
Accompanying drawing explanation
Fig. 1 is the agravic straight line counter-force arm structural representation that embodiment 1 provides.
Fig. 2 is the agravic straight line counter-force arm exploded perspective view that embodiment 1 provides.
Fig. 3 is the another kind agravic straight line counter-force arm structural representation that embodiment 2 provides.
Wherein: 1, strut bar 2, crossbeam 3, hanger 4, agravic Spring balancer 5, move up and down part 6, balancing device attaching parts 7, sway connecting panel 8, guide rod mounting blocks 9, guide rod 10, fixed block 11, connecting element 12, butt flange seat 13, limiting device
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, 2, a kind of agravic straight line counter-force arm, comprise strut bar 1, be provided with crossbeam 2 at supporting bar top, strut bar is located at the center of crossbeam, is provided with surface bearing between strut bar 1 and crossbeam 2, and crossbeam freely can rotate around strut bar 360 °.Crossbeam two ends are provided with hanger 3, hanger are respectively established an agravic Spring balancer 4.Sheathedly in the middle part of strut bar move up and down part 5, move up and down part for cylindric, central through hole is enclosed within strut bar, moves up and down in the middle part of part and is provided with mounting groove, be arranged with balancing device attaching parts 6 moving up and down on the upside of part, balancing device attaching parts 6 is connected with agravic Spring balancer 4 lower end.Fix sway connecting panel 7 moving up and down on part mounting groove, Location guide mounting blocks 8 on sway connecting panel 7, guide rod mounting blocks 8 is provided with two through holes, establishes guide rod 9 in through hole, sleeve is provided with, for support cylinder coro bearng between guide rod and through hole.Be provided with limiting device 13 two guide rod, the stroke of restriction guide rod, prevents the excessive pull of guide rod.Be provided with fixed block 10 at the guide rod other end, fixed block is connected with connecting element 11, and in the present embodiment, connecting element is jaw.Set collar and butt flange seat is provided with in strut bar bottom, can be adjusted by set collar and limit the stroke moving up and down part, be connected with base by butt flange seat 12, butt flange seat is made up of a pair semi-circular butt flange sheet, and two semi-circular butt flange sheets are fastened by bolts.
Embodiment 2
As shown in Figure 3, a kind of agravic straight line counter-force arm, comprise strut bar 1, be provided with crossbeam 2 at supporting bar top, strut bar is located at the center of crossbeam, is provided with surface bearing between strut bar and crossbeam, and crossbeam freely can rotate around strut bar 360 °.Crossbeam two ends are provided with hanger 3, hanger are respectively established an agravic Spring balancer 4.Sheathedly in the middle part of strut bar move up and down part 5, move up and down part 5 for cylindric, central through hole is enclosed within strut bar, moves up and down in the middle part of part and is provided with mounting groove, be arranged with balancing device attaching parts 6 moving up and down on the upside of part, balancing device attaching parts 6 is connected with agravic Spring balancer 4 lower end.Fix sway connecting panel 7 moving up and down on part mounting groove, rotating shaft is provided with in sway connecting panel 7 one end, rotating shaft is connected with two guide rods 9, guide rod 9 other end is connected with fixed block 10, the relative position of two guide rods is fixed by fixed block, connection fixture 11 on fixed block 10, the connecting element 11 in the present embodiment is jaw.Set collar and butt flange seat is provided with in strut bar bottom, can be adjusted by set collar and limit the stroke moving up and down part, be connected with base by butt flange seat 12, butt flange seat is made up of a pair semi-circular butt flange sheet, and two semi-circular butt flange sheets are fastened by bolts.
Although be illustrated embodiments of the present invention in specification sheets, these embodiments just as prompting, should not limit protection scope of the present invention.Carry out various omission, displacement and change without departing from the spirit and scope of the present invention all should be included in protection scope of the present invention.
Claims (10)
1. an agravic straight line counter-force arm, it is characterized in that: comprise strut bar, move up and down part, sway part, agravic Spring balancer, described supporting bar top is provided with crossbeam, and crossbeam two ends are provided with hanger, each suspension agravic Spring balancer on two hangers; Be arranged with in the middle part of strut bar and move up and down part, moving up and down part can slide up and down along strut bar, agravic Spring balancer lower end with move up and down part and be connected; Fix sway part moving up and down on part, sway part moves with moving up and down part, is provided with connecting element in sway part one end.
2. agravic straight line counter-force arm according to claim 1, it is characterized in that: described moves up and down part for cylindric, move up and down in the middle part of part and be provided with mounting groove, mounting groove laterally fixes sway part, be arranged with balancing device attaching parts moving up and down on the upside of part, balancing device attaching parts is connected with agravic Spring balancer lower end suspension hook.
3. agravic straight line counter-force arm according to claim 2, is characterized in that: described balancing device attaching parts is parallel with crossbeam, and the length of balancing device attaching parts makes agravic Spring balancer freely sagging just.
4. agravic straight line counter-force arm according to claim 3, is characterized in that: described moving up and down in part is provided with two cylindrical roller bearings, and making to move up and down part freely can rotate around strut bar 360 °.
5. agravic straight line counter-force arm according to claim 4, is characterized in that: be provided with surface bearing between described crossbeam and strut bar, and crossbeam freely can be rotated around strut bar 360 °.
6. agravic straight line counter-force arm according to claim 1, is characterized in that: described sway part comprises sway connecting panel and joint arm, joint arm is fixed by rotating shaft and sway connecting panel one end, and joint arm end is provided with connecting element.
7. agravic straight line counter-force arm according to claim 1, is characterized in that: described sway part comprises sway connecting panel and along the guide rod of the free sway of sway connecting panel, can be provided with connecting element in one end of guide rod.
8. agravic straight line counter-force arm according to claim 7, it is characterized in that: described sway part also comprises the guide rod mounting blocks be fixed on sway connecting panel, guide rod mounting blocks is provided with through hole, guide rod is along through hole sway, guide rod is provided with limiting device, the stroke of restriction guide rod, the guide rod other end arranges connecting element.
9. agravic straight line counter-force arm according to claim 8, is characterized in that: be provided with magnetic part near connecting element one end in described guide rod mounting blocks, magnetic part is coated with cushion layer.
10. agravic straight line counter-force arm according to claim 8, it is characterized in that: described strut bar lower end is connected with base by butt flange seat, described butt flange seat is made up of a pair semi-circular butt flange sheet, and two semi-circular butt flange sheets are fastened by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250885.5A CN104925639A (en) | 2015-05-18 | 2015-05-18 | Zero-gravity linear counterforce arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250885.5A CN104925639A (en) | 2015-05-18 | 2015-05-18 | Zero-gravity linear counterforce arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104925639A true CN104925639A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510250885.5A Pending CN104925639A (en) | 2015-05-18 | 2015-05-18 | Zero-gravity linear counterforce arm |
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| CN (1) | CN104925639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2703861C2 (en) * | 2017-12-11 | 2019-10-22 | Акционерное общество "Информационные спутниковые системы" имени академика М.Ф. Решетнёва" | Crossarm |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2749788B1 (en) * | 1996-06-12 | 1998-09-04 | Chaffoteaux Et Maury | AUTOMATIC WORKSHOP SCREWDRIVER |
| DE19609511C2 (en) * | 1996-03-11 | 1998-09-17 | Raimund Wilhelm | Aid device for hand-held tools |
| EP0888852A1 (en) * | 1997-07-04 | 1999-01-07 | Rainer Jäger | Manipulator |
| CN201505809U (en) * | 2009-09-28 | 2010-06-16 | 常州星宇车灯股份有限公司 | Connecting bar balancing stand for holding an automatic scroll driver |
| CN201511241U (en) * | 2009-09-28 | 2010-06-23 | 常州星宇车灯股份有限公司 | Balance bracket used for clamping automatic screwdrivers |
| CN102615502A (en) * | 2012-04-27 | 2012-08-01 | 常州星宇车灯股份有限公司 | Universal adjustable balance bracket |
| CN203579153U (en) * | 2013-11-19 | 2014-05-07 | 安徽省芜湖仪器仪表研究所 | Balance arm mechanism for vertical assembly |
| CN204123322U (en) * | 2014-07-25 | 2015-01-28 | 柯马(上海)工程有限公司 | A kind of Electric torque wrench counter-force arm servicing unit |
| CN204643552U (en) * | 2015-05-18 | 2015-09-16 | 苏州派迪动力科技有限公司 | A kind of agravic straight line counter-force arm |
-
2015
- 2015-05-18 CN CN201510250885.5A patent/CN104925639A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19609511C2 (en) * | 1996-03-11 | 1998-09-17 | Raimund Wilhelm | Aid device for hand-held tools |
| FR2749788B1 (en) * | 1996-06-12 | 1998-09-04 | Chaffoteaux Et Maury | AUTOMATIC WORKSHOP SCREWDRIVER |
| EP0888852A1 (en) * | 1997-07-04 | 1999-01-07 | Rainer Jäger | Manipulator |
| CN201505809U (en) * | 2009-09-28 | 2010-06-16 | 常州星宇车灯股份有限公司 | Connecting bar balancing stand for holding an automatic scroll driver |
| CN201511241U (en) * | 2009-09-28 | 2010-06-23 | 常州星宇车灯股份有限公司 | Balance bracket used for clamping automatic screwdrivers |
| CN102615502A (en) * | 2012-04-27 | 2012-08-01 | 常州星宇车灯股份有限公司 | Universal adjustable balance bracket |
| CN203579153U (en) * | 2013-11-19 | 2014-05-07 | 安徽省芜湖仪器仪表研究所 | Balance arm mechanism for vertical assembly |
| CN204123322U (en) * | 2014-07-25 | 2015-01-28 | 柯马(上海)工程有限公司 | A kind of Electric torque wrench counter-force arm servicing unit |
| CN204643552U (en) * | 2015-05-18 | 2015-09-16 | 苏州派迪动力科技有限公司 | A kind of agravic straight line counter-force arm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2703861C2 (en) * | 2017-12-11 | 2019-10-22 | Акционерное общество "Информационные спутниковые системы" имени академика М.Ф. Решетнёва" | Crossarm |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |
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| RJ01 | Rejection of invention patent application after publication |