CN204848055U - Swing arm tower crane amplitude changing device's emergency brake arrangement - Google Patents
Swing arm tower crane amplitude changing device's emergency brake arrangement Download PDFInfo
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- CN204848055U CN204848055U CN201520577601.9U CN201520577601U CN204848055U CN 204848055 U CN204848055 U CN 204848055U CN 201520577601 U CN201520577601 U CN 201520577601U CN 204848055 U CN204848055 U CN 204848055U
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- piston rod
- piston
- oil
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Abstract
The utility model relates to a swing arm tower crane amplitude changing device's emergency brake arrangement, it includes hydro -cylinder, oil pump, overflow valve, check valve, switching -over valve, and hydro -cylinder serial connectivity in proper order has oil pump, check valve, switching -over valve, pneumatic cylinder arresting gear, and the switching -over valve is connected with the draining groove, is connected with the overflow valve between check valve and the switching -over valve, and check valve, draining groove are connected to the one end of overflow valve, and the hydro -cylinder is connected to the other end of overflow valve, pneumatic cylinder arresting gear's main part comprises braking piece, piston rod, dish -shaped spring, oil blanket, piston, adjusting screw, piston rod cover, oil storage tank, O type circle, piston lock nut, adjusting screw lock nut, and the inside of oil storage tank sets up piston rod, dish -shaped spring, oil blanket, piston, adjusting screw, piston rod cover, O type circle, piston lock nut, adjusting screw lock nut, the braking piece is connected to the left end of piston rod, the utility model has the advantages of simple structure, response speed is fast, efficient, the security is good.
Description
Technical field
The utility model belongs to hoisting crane technical field, is specifically related to a kind of emergency braking apparatus of arm tower crane luffing mechanism.
Background technology
The luffing of arm tower crane is realized by the elevation angle of change jib, its elevation angle generally changes between 10 ° ~ 87 °, because the jib of tower machine is long, weight is large, in amplitude changing process, as once be in an emergency to cause serious safety misadventure, the luffing mechanism of movable arm type tower machine is except arranging the magnet stopper of drive motor side for this reason, also should emergency braking apparatus be set, to ensure the safety of tower machine luffing action, as extra brake devices, require to answer stable action during emergency brake system work, soft, and moment is seized with regard to energy, therefore a kind of emergency braking apparatus of arm tower crane luffing mechanism is needed.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provides the emergency braking apparatus of the arm tower crane luffing mechanism that a kind of structure is simple, fast response time, efficiency are high, safety is good.
The purpose of this utility model is achieved in that a kind of emergency braking apparatus of arm tower crane luffing mechanism, it comprises oil cylinder, oil pump, by pass valve, check valve, change-over valve, described oil cylinder successively serial communication has oil pump, check valve, change-over valve, hydraulic actuating cylinder brake equipment, described change-over valve is connected with drain pan, by pass valve is connected with between described check valve and change-over valve, one end of described by pass valve connects check valve, drain pan, and the other end of described by pass valve connects oil cylinder, the main body of described hydraulic actuating cylinder brake equipment is by brake plate, piston rod, disk spring, oil sealing, piston, adjustment screw, piston rod cover, oil resevoir, O type circle, lock piston jack panel, adjustment screw lock nut composition, the inside of described oil resevoir is provided with piston rod, disk spring, oil sealing, piston, adjustment screw, piston rod cover, O type circle, lock piston jack panel, adjustment screw lock nut, the inside division of described oil resevoir is left chamber, right chamber, described disk spring is arranged on left chamber, described piston, O type circle, lock piston jack panel, adjustment screw lock nut is arranged on right chamber, the left end of described piston rod is connected with brake plate, and the right-hand member of described piston rod is connected with adjustment screw, and described piston rod is through piston rod cover, and described piston rod, piston rod cover concentric is arranged, the right-hand member of described adjustment screw is provided with adjustment screw lock nut, described adjustment screw, piston rod cover concentric is arranged, the left side of described oil sealing connects the intermediate hsg of piston rod cover, the right side of described oil sealing is provided with piston, and the right side of described piston is provided with lock piston jack panel.
The inside of described brake plate is provided with slipmat.
The left end of described piston rod is provided with cup head.
Described piston rod, brake plate junction are provided with wear-resistant coating.
For being rigidly connected between described brake plate and oil resevoir.
The beneficial effects of the utility model: the utility model employing brake plate, piston rod, disk spring, oil sealing, piston, adjustment screw, piston rod cover, oil resevoir, O type circle, lock piston jack panel, adjustment screw lock nut, oil cylinder, oil pump, check valve, drain pan, hydraulic actuating cylinder brake equipment, change-over valve, by pass valve form a kind of emergency braking apparatus of arm tower crane luffing mechanism, have the advantage that structure is simple, fast response time, efficiency are high, safety is good; During use of the present utility model, when the electromagnet no power of change-over valve, the side plate that brake plate tightly clamps amplitude-changing drum under the effect of the disk spring of hydraulic actuating cylinder makes emergency braking apparatus be in braking mode; The hydraulic actuating cylinder that emergency braking of the present utility model uses is primarily of cylinder body, piston, disk spring, adjustment screw composition; Braking is when unclamping, and makes piston, piston rod cover moves to right by the electromagnet that is equipped with, change-over valve control presssure oil, and then compression butterfly spring, and adjustment screw is in free state, and braking force is zero; During moment braking mode, by the electromagnet, the change-over valve control presssure oil oil sump tank that are equipped with, butterfly spring return, spring force passes on brake plate brake through piston rod and adjustment screw, and piston is moved to left by the jam nut being arranged on piston rod and putting; Gradual braking, can arrange the both sides that many centimeters of braking liquid cylinder pressures are arranged on barrel lateral plates, by going forward one by one successively, postponing, hydraulic actuating cylinder progressively be braked, realize the steady, soft of automated procedure; Brake equipment of the present utility model protection personnel and equipment injury-free, there is the advantage that structure is simple, fast response time, efficiency are high, safety is good; Total, the utility model has the advantage that structure is simple, fast response time, efficiency are high, safety is good.
Accompanying drawing explanation
Fig. 1 is the hydraulic actuating cylinder brake equipment schematic diagram of the emergency braking apparatus of a kind of arm tower crane luffing mechanism of the utility model.
Fig. 2 is the structural representation of the emergency braking apparatus of a kind of arm tower crane luffing mechanism of the utility model.
In figure: 1, brake plate 2, piston rod 3, disk spring 4, oil sealing 5, piston 6, adjustment screw 7, piston rod cover 8, oil resevoir 9, O type circle 10, lock piston jack panel 11, adjustment screw lock nut 12, oil cylinder 13, oil pump 14, check valve 15, drain pan 16, hydraulic actuating cylinder brake equipment 17, change-over valve 18, by pass valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1
As depicted in figs. 1 and 2, a kind of emergency braking apparatus of arm tower crane luffing mechanism, it comprises oil cylinder 12, oil pump 13, by pass valve 18, check valve 14, change-over valve 17, described oil cylinder 12 successively serial communication has oil pump 13, check valve 14, change-over valve 17, hydraulic actuating cylinder brake equipment 16, described change-over valve 17 is connected with drain pan 15, by pass valve 18 is connected with between described check valve 14 and change-over valve 17, one end of described by pass valve 18 connects check valve 14, drain pan 15, and the other end of described by pass valve 18 connects oil cylinder 12, the main body of described hydraulic actuating cylinder brake equipment 16 is by brake plate 1, piston rod 2, disk spring 3, oil sealing 4, piston 5, adjustment screw 6, piston rod cover 7, oil resevoir 8, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11 forms, the inside of described oil resevoir 8 is provided with piston rod 2, disk spring 3, oil sealing 4, piston 5, adjustment screw 6, piston rod cover 7, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11, the inside division of described oil resevoir 8 is left chamber, right chamber, described disk spring 3 is arranged on left chamber, described piston 5, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11 is arranged on right chamber, the left end of described piston rod 2 is connected with brake plate 1, and the right-hand member of described piston rod 2 is connected with adjustment screw 6, and described piston rod 2 is through piston rod cover 7, and described piston rod 2, piston rod overlap 7 concentrics and arrange, the right-hand member of described adjustment screw 6 is provided with adjustment screw lock nut 11, described adjustment screw 6, piston rod overlap 7 concentrics and arrange, the left side of described oil sealing 4 connects the intermediate hsg of piston rod cover 7, the right side of described oil sealing 4 is provided with piston 5, and the right side of described piston 5 is provided with lock piston jack panel 10.
When the utility model is implemented, first when the electromagnet no power of change-over valve, the side plate that brake plate tightly clamps amplitude-changing drum under the effect of the disk spring of hydraulic actuating cylinder makes emergency braking apparatus be in braking mode; Mode of operation has following three kinds: the first, braking is when unclamping, and makes piston, piston rod cover moves to right by the electromagnet that is equipped with, change-over valve control presssure oil, and then compression butterfly spring, and adjustment screw is in free state, and braking force is zero; The second, during moment braking mode, by the electromagnet, the change-over valve control presssure oil oil sump tank that are equipped with, butterfly spring return, spring force passes on brake plate brake through piston rod and adjustment screw, and piston is moved to left by the jam nut being arranged on piston rod and putting; The third, gradual braking, can arrange the both sides that many centimeters of braking liquid cylinder pressures are arranged on barrel lateral plates, by going forward one by one successively, postponing, hydraulic actuating cylinder progressively be braked, realize the steady, soft of automated procedure; Total, the utility model has the advantage that structure is simple, fast response time, efficiency are high, safety is good.
Embodiment 2
As depicted in figs. 1 and 2, a kind of emergency braking apparatus of arm tower crane luffing mechanism, it comprises oil cylinder 12, oil pump 13, by pass valve 18, check valve 14, change-over valve 17, described oil cylinder 12 successively serial communication has oil pump 13, check valve 14, change-over valve 17, hydraulic actuating cylinder brake equipment 16, described change-over valve 17 is connected with drain pan 15, by pass valve 18 is connected with between described check valve 14 and change-over valve 17, one end of described by pass valve 18 connects check valve 14, drain pan 15, and the other end of described by pass valve 18 connects oil cylinder 12, the main body of described hydraulic actuating cylinder brake equipment 16 is by brake plate 1, piston rod 2, disk spring 3, oil sealing 4, piston 5, adjustment screw 6, piston rod cover 7, oil resevoir 8, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11 forms, the inside of described oil resevoir 8 is provided with piston rod 2, disk spring 3, oil sealing 4, piston 5, adjustment screw 6, piston rod cover 7, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11, the inside division of described oil resevoir 8 is left chamber, right chamber, described disk spring 3 is arranged on left chamber, described piston 5, O type circle 9, lock piston jack panel 10, adjustment screw lock nut 11 is arranged on right chamber, the left end of described piston rod 2 is connected with brake plate 1, and the right-hand member of described piston rod 2 is connected with adjustment screw 6, and described piston rod 2 is through piston rod cover 7, and described piston rod 2, piston rod overlap 7 concentrics and arrange, the right-hand member of described adjustment screw 6 is provided with adjustment screw lock nut 11, described adjustment screw 6, piston rod overlap 7 concentrics and arrange, the left side of described oil sealing 4 connects the intermediate hsg of piston rod cover 7, the right side of described oil sealing 4 is provided with piston 5, the right side of described piston 5 is provided with lock piston jack panel 10, the inside of described brake plate 1 is provided with slipmat, the left end of described piston rod 2 is provided with cup head, described piston rod 2, brake plate 1 junction are provided with wear-resistant coating, for being rigidly connected between described brake plate 1 and oil resevoir 8.
When the utility model is implemented, first when the electromagnet no power of change-over valve, the side plate that brake plate tightly clamps amplitude-changing drum under the effect of the disk spring of hydraulic actuating cylinder makes emergency braking apparatus be in braking mode; Mode of operation has following three kinds: the first, braking is when unclamping, and makes piston, piston rod cover moves to right by the electromagnet that is equipped with, change-over valve control presssure oil, and then compression butterfly spring, and adjustment screw is in free state, and braking force is zero; The second, during moment braking mode, by the electromagnet, the change-over valve control presssure oil oil sump tank that are equipped with, butterfly spring return, spring force passes on brake plate brake through piston rod and adjustment screw, and piston is moved to left by the jam nut being arranged on piston rod and putting; The third, gradual braking, can arrange the both sides that many centimeters of braking liquid cylinder pressures are arranged on barrel lateral plates, by going forward one by one successively, postponing, hydraulic actuating cylinder progressively be braked, realize the steady, soft of automated procedure; The inside of brake plate of the present utility model is provided with slipmat, the left end of piston rod is provided with cup head, piston rod, brake plate junction are provided with wear-resistant coating, for being rigidly connected between brake plate and oil cylinder, have the advantage that structure is simple, effective, cost is low, structure is reliable, efficiency is high; Total, the utility model has the advantage that structure is simple, fast response time, efficiency are high, safety is good.
The foregoing is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation in technical solutions of the utility model.
Claims (5)
1. the emergency braking apparatus of an arm tower crane luffing mechanism, it comprises oil cylinder, oil pump, by pass valve, check valve, change-over valve, it is characterized in that: described oil cylinder successively serial communication has oil pump, check valve, change-over valve, hydraulic actuating cylinder brake equipment, described change-over valve is connected with drain pan, by pass valve is connected with between described check valve and change-over valve, one end of described by pass valve connects check valve, drain pan, and the other end of described by pass valve connects oil cylinder, the main body of described hydraulic actuating cylinder brake equipment is by brake plate, piston rod, disk spring, oil sealing, piston, adjustment screw, piston rod cover, oil resevoir, O type circle, lock piston jack panel, adjustment screw lock nut composition, the inside of described oil resevoir is provided with piston rod, disk spring, oil sealing, piston, adjustment screw, piston rod cover, O type circle, lock piston jack panel, adjustment screw lock nut, the inside division of described oil resevoir is left chamber, right chamber, described disk spring is arranged on left chamber, described piston, O type circle, lock piston jack panel, adjustment screw lock nut is arranged on right chamber, the left end of described piston rod is connected with brake plate, and the right-hand member of described piston rod is connected with adjustment screw, and described piston rod is through piston rod cover, and described piston rod, piston rod cover concentric is arranged, the right-hand member of described adjustment screw is provided with adjustment screw lock nut, described adjustment screw, piston rod cover concentric is arranged, the left side of described oil sealing connects the intermediate hsg of piston rod cover, the right side of described oil sealing is provided with piston, and the right side of described piston is provided with lock piston jack panel.
2. the emergency braking apparatus of a kind of arm tower crane luffing mechanism according to claim 1, is characterized in that: the inside of described brake plate is provided with slipmat.
3. the emergency braking apparatus of a kind of arm tower crane luffing mechanism according to claim 1, is characterized in that: the left end of described piston rod is provided with cup head.
4. the emergency braking apparatus of a kind of arm tower crane luffing mechanism according to claim 1, is characterized in that: described piston rod, brake plate junction are provided with wear-resistant coating.
5. the emergency braking apparatus of a kind of arm tower crane luffing mechanism according to claim 1, is characterized in that: for being rigidly connected between described brake plate and oil resevoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577601.9U CN204848055U (en) | 2015-08-04 | 2015-08-04 | Swing arm tower crane amplitude changing device's emergency brake arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577601.9U CN204848055U (en) | 2015-08-04 | 2015-08-04 | Swing arm tower crane amplitude changing device's emergency brake arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204848055U true CN204848055U (en) | 2015-12-09 |
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ID=54738628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520577601.9U Expired - Fee Related CN204848055U (en) | 2015-08-04 | 2015-08-04 | Swing arm tower crane amplitude changing device's emergency brake arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204848055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269741A (en) * | 2017-07-28 | 2017-10-20 | 江苏理工学院 | A kind of brake system of car of use electric operator |
-
2015
- 2015-08-04 CN CN201520577601.9U patent/CN204848055U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269741A (en) * | 2017-07-28 | 2017-10-20 | 江苏理工学院 | A kind of brake system of car of use electric operator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160804 |