CN206827990U - A kind of tower crane variable-amplitude steel wire rope automatic rope tightening device - Google Patents
A kind of tower crane variable-amplitude steel wire rope automatic rope tightening device Download PDFInfo
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- CN206827990U CN206827990U CN201720621278.XU CN201720621278U CN206827990U CN 206827990 U CN206827990 U CN 206827990U CN 201720621278 U CN201720621278 U CN 201720621278U CN 206827990 U CN206827990 U CN 206827990U
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- pulley
- steel wire
- wire rope
- tower crane
- tightening device
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Abstract
The utility model belongs to Architectural Equipment technical field, specifically a kind of tower crane variable-amplitude steel wire rope automatic rope tightening device, including pulley yoke and pulley assembly, pulley yoke includes the support body of two panels parallel and symmetrical arrangement, two panels support body is respectively provided with kidney ellipsoid elongated hole, the upper end of pulley yoke is provided with the clip for being used for being fixed on crane arm top boom, pulley assembly includes the pulley being placed between two panels support body, pulley sleeve is on pulley spindle, the both ends of pulley spindle hang a balancing weight respectively after stretching out the kidney ellipsoid elongated hole of two panels support body respectively, pulley spindle forms the pair that is slidably connected with pulley yoke, anticreep pin is be arranged in parallel with pulley spindle and its both ends is fixedly connected with described two balancing weights respectively, steel wire rope groove opening of the anticreep pin close to pulley.The utility model can effectively prevent from triggering the malfunction of dolly breaking rope protecting because of steel wire rope sag.
Description
Technical field
The utility model belongs to Architectural Equipment technical field, specifically a kind of tower crane variable-amplitude steel wire rope automatic rope tightening device.
Background technology
The crane arm arrangement of horizontal arm device of carriage amplitude varying tower crane in the horizontal direction, is provided with loading trolley, load-carrying on crane arm
Dolly drives variable-amplitude steel wire rope to carry out traction luffing from both direction by reel.Variable-amplitude steel wire rope must have certain tensioning
Power just can guarantee that loading trolley even running on arm support.Loading trolley rope tightening device form is more, and more traditional is ratchet
Rope tightening device, steel wire rope is tightened with ratchet spanner on arm support by staff.
The jib lubbing mechanism of conventional flat arm device of carriage amplitude varying tower crane arranges 10 meters away from the centre of gyration or so places, for 60 meters or so
For the tower crane of brachium, two rope capacities differ 40 meters or so on amplitude-changing drum.When heavily loaded, jib lubbing mechanism driven forward,
Motor driven reel rotates, and now long rope stress is used to overcome natural resiliency, long rope elongation, and loading trolley does not move.The period
Reel is still rotated, and short rope is released, and causes variable-amplitude steel wire rope relaxation sagging.When sagging amount of deflection is excessive, easily triggers dolly and break
Rope protection device, safe flashboard is flipped up being stuck on the horizontal web member of crane arm, so that dolly is out of service.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided a kind of tower crane variable-amplitude steel wire rope automatic rope tightening device,
It can effectively prevent from triggering the faulty operation of dolly breaking rope protecting because of steel wire rope sag.
To realize above-mentioned technical purpose, scheme provided by the utility model is：A kind of tower crane variable-amplitude steel wire rope automatic rope tightening
Device, including pulley yoke and pulley assembly, pulley yoke include the support body of two panels parallel and symmetrical arrangement, and two panels support body is respectively provided with waist
Circular elongated hole, the upper end of pulley yoke are provided with the clip for being used for being fixed on crane arm top boom, and pulley assembly includes being placed in two panels
Pulley between support body, pulley sleeve is on the pulley spindle, after the kidney ellipsoid elongated hole of two panels support body is stretched out at the both ends of pulley spindle respectively
A balancing weight is hung respectively, and pulley spindle forms the pair that is slidably connected with pulley yoke, and anticreep pin is be arranged in parallel with pulley spindle and it
Both ends are fixedly connected with described two balancing weights respectively, steel wire rope groove opening of the anticreep pin close to pulley.
Moreover, rushed on the pulley yoke and when being provided for close to the upper end of kidney ellipsoid elongated hole and absorb pulley assembly resilience
Hit the cushion pad of power.Cushion pad can be fixedly connected by fixing bolt with pulley yoke.
Moreover, the anticreep pin is located at the underface of balancing weight, and pass through the kidney ellipsoid elongated hole of two panels support body.
Moreover, the anticreep pin is externally provided with sleeve.
Moreover, axle sleeve is provided between the pulley and pulley spindle.
Moreover, being provided with back-up ring between the balancing weight and pulley yoke, shield ring sleeve is on pulley spindle.
Moreover, locking balancing weight is fixed in the both ends of the pulley spindle by split pin, locking nut and packing ring.
Moreover, the clip is connected by connecting bolt with pulley yoke.
The beneficial effects of the utility model are：It can effectively prevent from triggering the mistake of dolly breaking rope protecting because of steel wire rope sag
Action, driver starts derrick runway girder structural damage or the change that jib lubbing mechanism triggers after preventing the malfunction of loading trolley breaking rope protecting
Width steel wire rope is destroyed and caused the accident.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 side view.
Wherein, 1, clip, 2, clamp bolt, 3, connecting bolt, 4, fixing bolt, 5, cushion pad, 6, pulley, 7, pulley
Axle, 8, split pin, 9, locking nut, 10, packing ring, 11, balancing weight, 12, back-up ring, 13, axle sleeve, 14, sleeve, 15, anticreep pin,
16th, pulley yoke.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
The present embodiment provides a kind of tower crane variable-amplitude steel wire rope automatic rope tightening device, as depicted in figs. 1 and 2, including pulley yoke
16 and pulley assembly, pulley yoke 16 includes the support body of two panels parallel and symmetrical arrangement, and two panels support body is respectively provided with kidney ellipsoid elongated hole, sliding
The upper end of wheel carrier 16 is provided with the clip 1 for being used for being fixed on crane arm top boom, and pulley assembly includes being placed between two panels support body
Pulley 6, pulley 6 is sheathed on pulley spindle 7, and the both ends of pulley spindle 7 are stretched out after the kidney ellipsoid elongated hole of two panels support body respectively respectively
A balancing weight 11 is hung, pulley spindle 7 forms the pair that is slidably connected with pulley yoke 16, and anticreep pin 15 be arranged in parallel with pulley spindle 7
And its both ends is fixedly connected with described two balancing weights 11 respectively, steel wire rope groove opening of the anticreep pin 15 close to pulley 6.
Further, it is provided for absorbing pulley assembly time on the pulley yoke 16 and close to the upper end of kidney ellipsoid elongated hole
The cushion pad 5 of impulsive force during bullet.Cushion pad 5 can be fixedly connected by fixing bolt with pulley yoke 16.
Further, the anticreep pin 15 is located at the underface of balancing weight 11, and is grown through the kidney ellipsoid of two panels support body
Hole.
Further, the anticreep pin 15 is externally provided with sleeve 14.
Further, axle sleeve 13 is provided between the pulley 6 and pulley spindle 7.
Further, back-up ring 12 is provided between the balancing weight 11 and pulley yoke 16, back-up ring 12 is sheathed on pulley spindle 7.
Further, locking balancing weight is fixed in the both ends of the pulley spindle 7 by split pin 8, locking nut 9 and packing ring 10
11。
Further, the clip 1 is connected by connecting bolt 3 with pulley yoke 16.
During assembling, variable-amplitude steel wire rope is passed through into pulley yoke 16, will after being connected pulley yoke 16 and clip 1 with bolt pair 3
Clip 1 is arranged on crane arm top boom and fixed with clamp bolt 2.Pulley 6 is arranged on to the pulley spindle 7 for being arranged with axle sleeve 13
Middle part, and pulley 6 is placed between the two panels support body of pulley yoke 16, the steel wire rope groove of variable-amplitude steel wire rope from pulley 6 bypasses, pulley
The both ends of axle 7 are passed after the long kidney-shaped hole of pulley yoke 16, load onto back-up ring 12 and balancing weight 11 respectively, and with packing ring 10, locking
Nut 9 and split pin 8 are locked, and now pulley 6 can slidably reciprocate in the long kidney-shaped hole of pulley yoke 16.Will be slow with fixing bolt 4
Rush pad 5 to be fixed on pulley yoke 16, sleeve 14 and anticreep pin 15 are connected to balancing weight 11, variable-amplitude steel wire rope is limited in
In the steel wire rope groove of pulley 6.
During steel wire tensioning, pulley 6 and balancing weight 11 are supported on variable-amplitude steel wire rope；During steel wire rope looseness, pulley 6 and match somebody with somebody
Pouring weight 11 is because Action of Gravity Field compresses downwards variable-amplitude steel wire rope, so as to reduce the sagging amount of deflection of variable-amplitude steel wire rope.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvement or deformation can also be made, these improve or
Deformation also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. tower crane variable-amplitude steel wire rope automatic rope tightening device, it is characterised in that：Including pulley yoke and pulley assembly, pulley yoke bag The support body of two panels parallel and symmetrical arrangement is included, two panels support body is respectively provided with kidney ellipsoid elongated hole, and the upper end of pulley yoke, which is provided with, to be used to fix Clip on crane arm top boom, pulley assembly include the pulley being placed between two panels support body, and pulley sleeve is located on pulley spindle, The both ends of pulley spindle hang a balancing weight, pulley spindle and pulley framework respectively after stretching out the kidney ellipsoid elongated hole of two panels support body respectively Into the pair that is slidably connected, anticreep pin is be arranged in parallel with pulley spindle and its both ends is fixedly connected with described two balancing weights respectively, is prevented Steel wire rope groove opening of the off-gear bar close to pulley.
- A kind of 2. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：In the pulley On frame and close to the upper end of kidney ellipsoid elongated hole be provided for absorb pulley assembly resilience when impulsive force cushion pad.
- A kind of 3. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：The anti-off-gear Bar is located at the underface of balancing weight, and passes through the kidney ellipsoid elongated hole of two panels support body.
- A kind of 4. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1 or 3, it is characterised in that：It is described anti- Off-gear bar is externally provided with sleeve.
- A kind of 5. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：The pulley with Axle sleeve is provided between pulley spindle.
- A kind of 6. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：The balancing weight Back-up ring is provided between pulley yoke, shield ring sleeve is on pulley spindle.
- A kind of 7. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：The pulley spindle Both ends pass through split pin, locking nut and packing ring fix locking balancing weight.
- A kind of 8. tower crane variable-amplitude steel wire rope automatic rope tightening device according to claim 1, it is characterised in that：The clip leads to Connecting bolt is crossed to be connected with pulley yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621278.XU CN206827990U (en) | 2017-05-31 | 2017-05-31 | A kind of tower crane variable-amplitude steel wire rope automatic rope tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621278.XU CN206827990U (en) | 2017-05-31 | 2017-05-31 | A kind of tower crane variable-amplitude steel wire rope automatic rope tightening device |
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| Publication Number | Publication Date |
|---|---|
| CN206827990U true CN206827990U (en) | 2018-01-02 |
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ID=60773468
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720621278.XU Active CN206827990U (en) | 2017-05-31 | 2017-05-31 | A kind of tower crane variable-amplitude steel wire rope automatic rope tightening device |
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| Country | Link |
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| CN (1) | CN206827990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292024A (en) * | 2021-05-21 | 2021-08-24 | 湖南三一塔式起重机械有限公司 | Steel wire rope tensioning device and operation machine |
-
2017
- 2017-05-31 CN CN201720621278.XU patent/CN206827990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292024A (en) * | 2021-05-21 | 2021-08-24 | 湖南三一塔式起重机械有限公司 | Steel wire rope tensioning device and operation machine |
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