CN204778495U - Regulation formula arm round pin resetting means - Google Patents
Regulation formula arm round pin resetting means Download PDFInfo
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- CN204778495U CN204778495U CN201520313324.0U CN201520313324U CN204778495U CN 204778495 U CN204778495 U CN 204778495U CN 201520313324 U CN201520313324 U CN 201520313324U CN 204778495 U CN204778495 U CN 204778495U
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- spring
- sleeve assembly
- pull bar
- rod assembly
- pin
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Abstract
The utility model discloses a regulation formula arm round pin resetting means, include draw bar assembly (1), spring (2), sleeve subassembly (4), spring stop (5), lock nut (6), pull rod (7) and oilless bearing (8) that have the self -lubricating property, sleeve subassembly one end is installed on draw bar assembly to be connected with draw bar assembly through spacing pin, the other end is connected with rod thread, and locks fixedly through spring stop, lock nut, spring suit is on draw bar assembly, sleeve subassembly to be located between draw bar assembly left side baffle and the sleeve subassembly right -hand member spring stop, oilless bearing installs and uses with the draw bar assembly cooperation in the sleeve subassembly. The utility model discloses can be used to pull up reseing of back pin pulling device with big arm of hoist round pin, alleviateed that pull pin and the dovetail strikes the vibrations that cause when reseing, reduced and strikeed in the working process and to the damage that other parts caused, reduced the mediation degree of difficulty of the stroke of arm round pin, promoted work efficiency and reliability.
Description
Technical field
The utility model relates to a kind of reset attachment, and specifically a kind of adjustable type arm pin reset attachment, belongs to arm pin reset attachment technical field.
Background technology
At present, hoisting crane has been widely used in all trades and professions.Along with continually developing of latch cylinder cylinder head structure in hoisting crane, be also developed for the arm pin reset attachment that pin pulling out device can be made to reset after being pulled up by hoisting crane large arm arm pin thereupon.But existing arm pin reset attachment mostly adopts built-in spring reset mode, spring initial pressure is fixed, cannot regulate, and can only use as single armed pin, heavier-weight.Accordingly, when the working condition of arm latch structure determines that it is pulled pin, working load is comparatively large, and when arm pin resets, required pulling force is less.Adopt oil cylinder power output when pulling pin, power output is comparatively large, and the impact load of end of travel is too large, easily causes damage to miscellaneous part; During unloaded reset, speed is very fast again, and also can cause damage to miscellaneous part, reliability is low.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of adjustable type arm pin reset attachment, for hoisting crane large arm arm pin being pulled up the reset of rear pin pulling out device, alleviate pull pin and dovetail furrow resets time impact the vibrations that cause, reduce and impact in working process and damage that other parts are caused, the conciliation difficulty of the stroke of lower arm pin, promotes work efficiency and reliability.
To achieve these goals, a kind of adjustable type arm pin reset attachment that the utility model adopts, comprise rod assembly, spring, sleeve assembly, spring stop, jam nut, pull bar and have the oilless metal of self-lubricating property, two ends, described pull bar left and right are provided with the contrary screw thread of rotation direction; One end of described sleeve assembly is arranged on rod assembly, and be connected with rod assembly by position-limitting pin, the other end of sleeve assembly is connected with pull rod screw, and is locked by spring stop, jam nut, regulates the overall length of reset attachment by turn pull bar and jam nut; Described spring housing is contained on rod assembly, sleeve assembly, and on the left of rod assembly between baffle plate and sleeve assembly right-hand member spring stop; Described oilless metal be arranged in sleeve assembly with rod assembly with the use of.
Preferably, described rod assembly is provided with one-level step, two stage steps and three grades of steps, and one-level step is used for coordinating with oilless metal, and two stage steps is for ensureing the synchronous of spring axis and sense of motion, and three stage rank are for carrying out spacing to spring.
Preferably, described pull bar upper left side screw thread is identical with the rotation direction of sleeve assembly, jam nut, and be all left-handed, pitch is identical; On pull bar, the rotation direction of right side screw thread is dextrorotation.
Preferably, described pull bar is expansion link.
Preferably, described rod assembly has a mounting hole, described sleeve assembly has a strip hole, position-limitting pin controls the position of sleeve assembly through mounting hole and strip hole.
Compared with prior art, the utility model utilizes spring to be resetted by arm pin as power, specifically utilize rod assembly, sleeve assembly and oilless metal as director element, and utilize position-limitting pin to carry out spacing as limit element, simultaneously, pull bar can be utilized as total length regulating device, utilize spring stop and jam nut as pre-tightening force adjusting device.Finally, can be used for the reset of hoisting crane large arm arm pin being pulled up rear pin pulling out device, alleviate pull pin and dovetail furrow resets time impact the vibrations that cause, reduce in working process and impact and damage that other parts are caused, reduce the conciliation difficulty of the stroke of arm pin, improve work efficiency and reliability.In addition, its structure is simple, lightweight; Safe and reliable, buffering effect is good; Possesses self-tuning performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of rod assembly;
Fig. 3 is the structural representation of sleeve assembly;
Fig. 4 is the structural representation of pull bar.
In figure: 1, rod assembly, 2, spring, 3, position-limitting pin, 4, sleeve assembly, 5, spring stop, 6, jam nut, 7, pull bar, 8, oilless metal, 11, one-level step, 12, two stage steps, 13, three grades of steps.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 4, a kind of adjustable type arm pin reset attachment, comprise rod assembly 1, spring 2, sleeve assembly 4, spring stop 5, jam nut 6, pull bar 7 and have the oilless metal 8 of self-lubricating property, described pull bar about 7 two ends are provided with the contrary screw thread of rotation direction; One end of described sleeve assembly 4 is arranged on rod assembly 1, and be connected with rod assembly 1 by position-limitting pin 3, the other end of sleeve assembly 4 is threaded with pull bar 7, and be locked by spring stop 5, jam nut 6, the overall length of reset attachment is regulated by turn pull bar 7 and jam nut 6; Described spring 2 is sleeved on rod assembly 1, sleeve assembly 4, and on the left of rod assembly 1 between baffle plate and sleeve assembly 4 right-hand member spring stop 5; Described oilless metal 8 be arranged in sleeve assembly 4 with rod assembly 1 with the use of.Wherein, the contact jaw of rod assembly and sleeve assembly is slippage pair, rod assembly plays the effect of guide and limit, transferring power, sleeve assembly plays guide and limit effect, pull bar two ends are threaded connection, mainly spring force is delivered to arm pin dovetail furrow place, simultaneously in working process for regulating the overall length of this reset attachment, and then to regulate and the terminal position of the initial pressure of reset attachment and dovetail furrow and stroke; Position-limitting pin 3 limits the first last position of spring in this device.
During use, this reset attachment can be arranged on the arm pin place in hoisting crane.Wherein, the left end of rod assembly 1 is hinged; The right-hand member of pull bar 7 has been threaded attaching parts, and is undertaken hinged by attaching parts.Consider that required power output is comparatively large when pulling pin, during reset, required power output is less, adopts oil cylinder as execution original paper, and adopt the reset attachment of this band spring to reset when resetting when therefore pulling pin.
During work, as shown in Figure 1, hinge one a rotates around bearing pin, and hinge two b rotates around hinge one a, simultaneously at two hinge line side upward movements.When pulling pin, oil cylinder is as the passive contraction of propulsion source reset attachment, spring 2 compresses, rod assembly 1 and sleeve assembly 4 guiding make reset attachment uniform shrinkage, when oil cylinder moves to end of run, reset attachment stops shrinking, and during reset, spring 2 is as propulsion source, oil cylinder is compressed, and dovetail furrow is resetted.Undertaken spacing in the first last position of stroke by position-limitting pin 3.Reset attachment can be regulated as required in the course of the work thus regulate dovetail furrow stroke, when namely regulating, can first loosen jam nut 6, then adjusting yoke 7 and then adjustment reset attachment length.This structure is realizing while arm pin resets, effectively to alleviate the vibrations in working process, impact, reducing in working process and impact and the damage that causes other parts, reduce the conciliation difficulty of the stroke of arm pin, improve work efficiency and reliability.
Above-mentioned rod assembly 1 and sleeve assembly 4 will do relative motion in the straight direction, and the oilless metal in sleeve assembly 4 with self-lubricating property can control the direction of its power output.In order to make rod assembly 1 coordinate better with oilless metal 8, one-level step 11 can be provided with on described rod assembly 1.And be avoid spring play in radial directions in working process, therefore process two stage steps 12 to ensure the synchronous of spring axis and sense of motion; And arrange for carrying out three spacing stage rank 13 to spring.
Preferably, described pull bar 7 upper left side screw thread is identical with the rotation direction of sleeve assembly, jam nut, and be all left-handed, pitch is identical; On pull bar 7, the rotation direction of right side screw thread is dextrorotation, can regulate this device overall length by turn pull bar and jam nut.
Preferably, described pull bar 7 is expansion link.
For controlling initial thrust and the maximum thrust of this mechanism, during spring-compressed, needing its first last position of controlling spring, as shown in Figure 1, sleeve assembly 4 can be arranged in position-limitting pin 3 precession rod assembly thus the position of control sleeve after on rod assembly 1.Preferably, described rod assembly 1 has a mounting hole, described sleeve assembly 4 has a strip hole, position-limitting pin 3 controls the position of sleeve assembly 4 through mounting hole and strip hole.
From said structure, the utility model utilizes spring to be resetted by arm pin as power, specifically utilize rod assembly, sleeve assembly and oilless metal as director element, and utilize position-limitting pin to carry out spacing as limit element, simultaneously, utilize pull bar as total length regulating device, utilize spring stop and jam nut as pre-tightening force adjusting device.Finally, can be used for the reset of hoisting crane large arm arm pin being pulled up rear pin pulling out device, alleviate pull pin and dovetail furrow resets time impact the vibrations that cause, reduce in working process and impact and damage that other parts are caused, reduce the conciliation difficulty of the stroke of arm pin, improve work efficiency and reliability.
Claims (5)
1. an adjustable type arm pin reset attachment, it is characterized in that, comprise rod assembly (1), spring (2), sleeve assembly (4), spring stop (5), jam nut (6), pull bar (7) and have the oilless metal (8) of self-lubricating property, described pull bar (7) two ends, left and right are provided with the contrary screw thread of rotation direction; One end of described sleeve assembly (4) is arranged on rod assembly (1), and be connected with rod assembly (1) by position-limitting pin (3), the other end of sleeve assembly (4) is threaded with pull bar (7), and be locked by spring stop (5), jam nut (6), the overall length of reset attachment is regulated by turn pull bar (7) and jam nut (6); Described spring (2) is sleeved on rod assembly (1), sleeve assembly (4), and is positioned between rod assembly (1) left side baffle plate and sleeve assembly (4) right-hand member spring stop (5); Described oilless metal (8) be arranged in sleeve assembly (4) with rod assembly (1) with the use of.
2. a kind of adjustable type arm pin reset attachment according to claim 1, it is characterized in that, described rod assembly (1) is provided with one-level step (11), two stage steps (12) and three grades of steps (13), one-level step (11) is for coordinating with oilless metal (8), two stage steps (12) is for ensureing the synchronous of spring axis and sense of motion, and three stage rank (13) are for carrying out spacing to spring.
3. a kind of adjustable type arm pin reset attachment according to claim 1, it is characterized in that, described pull bar (7) upper left side screw thread is identical with the rotation direction of sleeve assembly, jam nut, and be all left-handed, pitch is identical; The rotation direction of pull bar (7) upper right side screw thread is dextrorotation.
4. a kind of adjustable type arm pin reset attachment according to claim 1, it is characterized in that, described pull bar (7) is expansion link.
5. a kind of adjustable type arm pin reset attachment according to claim 1, it is characterized in that, described rod assembly (1) has a mounting hole, described sleeve assembly (4) has a strip hole, position-limitting pin (3) controls the position of sleeve assembly (4) through mounting hole and strip hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313324.0U CN204778495U (en) | 2015-05-14 | 2015-05-14 | Regulation formula arm round pin resetting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313324.0U CN204778495U (en) | 2015-05-14 | 2015-05-14 | Regulation formula arm round pin resetting means |
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| Publication Number | Publication Date |
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| CN204778495U true CN204778495U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520313324.0U Active CN204778495U (en) | 2015-05-14 | 2015-05-14 | Regulation formula arm round pin resetting means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201301A (en) * | 2017-07-05 | 2019-01-15 | 曾鲁庆 | A kind of fixed device of main shaft step for powder concentrator |
| CN110386579A (en) * | 2019-07-10 | 2019-10-29 | 中航飞机起落架有限责任公司 | A kind of high reliability locking device for being promoted, being launched |
-
2015
- 2015-05-14 CN CN201520313324.0U patent/CN204778495U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201301A (en) * | 2017-07-05 | 2019-01-15 | 曾鲁庆 | A kind of fixed device of main shaft step for powder concentrator |
| CN110386579A (en) * | 2019-07-10 | 2019-10-29 | 中航飞机起落架有限责任公司 | A kind of high reliability locking device for being promoted, being launched |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |