CN211039472U - 360-degree mechanical locking mechanism for hoisting machinery - Google Patents
360-degree mechanical locking mechanism for hoisting machinery Download PDFInfo
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- CN211039472U CN211039472U CN201921920054.4U CN201921920054U CN211039472U CN 211039472 U CN211039472 U CN 211039472U CN 201921920054 U CN201921920054 U CN 201921920054U CN 211039472 U CN211039472 U CN 211039472U
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- locking mechanism
- slewing bearing
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Abstract
The utility model provides a 360 mechanical locking mechanism for hoisting machinery, includes slewing bearing, slewing bearing's both sides are equipped with the big bottom plate of revolving stage, be equipped with the locking hydro-cylinder on the big bottom plate of revolving stage, the locking hydro-cylinder is connected with the locking tooth that uses with slewing bearing cooperation through connecting rod device. The utility model discloses a 360 mechanical locking mechanism for hoisting machinery, the simple pendulum motion of mechanical tooth is accomplished to the four-bar linkage that drives through the thrust of hydro-cylinder and links to each other to accomplish slewing bearing's locking, avoid hoisting machinery when the non-operation state, the danger of the gyration that probably takes place has improved the security of operation.
Description
Technical Field
The utility model relates to a hoist gyration braking equipment technical field specifically is a 360 mechanical locking mechanisms for hoisting machinery.
Background
When the crane is in hoisting operation, for the rotary braking, a normally closed brake built in a rotary speed reducer is often used for braking at present, and the braking mode is generally called as a locking mode in China; however, in north america, the brake is used as a brake form, rather than "locking" in a certain sense, and in some special working conditions, the effective fixation of the turntable cannot be effectively guaranteed, so that unnecessary safety accidents and economic losses may occur.
The existing crane turntable locking mechanism adopts a locking straight bolt, and the locking mechanism mainly utilizes the telescopic performance of a hydraulic oil cylinder to directly realize directional locking of a turntable, so that the phenomenon of rotation in the advancing process of an automobile crane is prevented. By using the locking straight bolt, the locking holes on the periphery of the rotary support cannot be machined or welded on the rotary support to realize 360-degree mechanical locking of the rotary support. At present, only locking holes are machined in a single direction or parts of the locking holes are welded, the method is only used in the automobile traveling process, and the safety locking requirement of a crane in the hoisting operation cannot be met.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a 360 mechanical locking mechanism for hoisting machinery simple structure, respond well.
The utility model discloses a realize with following technical scheme: the utility model provides a 360 mechanical locking mechanism for hoisting machinery, includes slewing bearing, slewing bearing's both sides are equipped with the big bottom plate of revolving stage, be equipped with the locking hydro-cylinder on the big bottom plate of revolving stage, the locking hydro-cylinder is connected with the locking tooth that uses with slewing bearing cooperation through connecting rod device.
It further comprises the following steps: a detection sensor for detecting the locked state is also included.
The rotary table is characterized in that a locking device support is arranged on the rotary table large bottom plate, the locking oil cylinder is arranged on the locking device support, and the locking oil cylinder is connected with the locking teeth through a driving rocker and a connecting rod.
The movable rocker and one end of the locking tooth are fixed on the locking device bracket, and the other end of the movable rocker and the other end of the locking tooth are connected together through a connecting rod.
And a detection sensor mounting bracket is arranged on the locking device bracket.
The locking oil cylinder is a bidirectional hydraulic cylinder controlled by electro-hydraulic.
The locking oil cylinder is a spring cylinder with single function.
The utility model has the advantages of it is following: the utility model discloses a 360 mechanical locking mechanism for hoisting machinery, the simple pendulum motion of mechanical tooth is accomplished to the four-bar linkage that drives through the thrust of hydro-cylinder and links to each other to accomplish slewing bearing's locking, avoid hoisting machinery when the non-operation state, the danger of the gyration that probably takes place has improved the security of operation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is a schematic view of the locked state of the present invention;
fig. 4 is a schematic view of the unlocking state of the present invention;
in the figure: 1. locking hydro-cylinder, 2, initiative rocker, 3, connecting rod, 4, locking tooth, 5, detection sensor installing support, 6, locking device support, 7, the big bottom plate of revolving stage, 8, slewing bearing.
Detailed Description
As shown in fig. 1 to 4, the 360-degree mechanical locking mechanism for the hoisting machine comprises a slewing bearing 8, wherein two sides of the slewing bearing 8 are provided with a large turntable base plate 7, the large turntable base plate 7 is provided with a locking oil cylinder 1, and the locking oil cylinder 1 is connected with locking teeth 4 matched with the slewing bearing 8 for use through a connecting rod device. A detection sensor for detecting the locked state is also included. The utility model discloses a simple pendulum motion of mechanical tooth is accomplished to 360 mechanical locking mechanism for hoisting machinery mainly through the thrust drive of hydro-cylinder link mechanism that links to each other to accomplish slewing bearing's locking. The preliminary design of the tooth shape of the locking tooth is completed according to the modulus of the slewing bearing, so that the width of the tooth peak of the locking tooth is reduced and the width of the tooth groove of the locking tooth is increased for facilitating locking. When the slewing bearing is in a locked state, the locking oil cylinder 1 is in a fully-retracted state, the locking teeth 4 and the slewing bearing 8 are in a meshed state, and the crane cannot perform slewing action. When the slewing bearing is in a state when the bearing is unlocked, the locking oil cylinder 1 is in a fully extended state, the locking teeth 4 and the slewing bearing 8 are in a separated state, the slewing bearing can freely rotate, the slewing action during hoisting operation is realized, and a detection sensor is arranged for ensuring the closed feedback of the locking and unlocking states.
As shown in fig. 1 to 4, in the 360 ° mechanical locking mechanism for hoisting machinery, a locking device bracket 6 is arranged on a large base plate 7 of a turntable, the locking cylinder 1 is arranged on the locking device bracket 6, and the locking cylinder 1 is connected with the locking teeth 4 through a driving rocker 2 and a connecting rod 3. The movable rocker 2 and one end of the locking tooth 4 are fixed on the locking device support 6, and the other ends of the movable rocker 2 and the locking tooth 4 are connected together through the connecting rod 3. And a detection sensor mounting bracket 5 is arranged on the locking device bracket 6. The 360-degree mechanical locking mechanism of the utility model mainly comprises a locking device bracket 6, a locking oil cylinder 1, a driving rocker 2, a connecting rod 3 and a locking tooth 4, as shown in fig. 1, a step slot assembled with the locking device bracket 6 is designed on the turntable big bottom plate 7, and a fastening threaded hole is reserved, the locking device bracket 6 is equivalently a frame in a four-bar mechanism, according to the actual working requirement, a double-rocker mechanism is adopted, the driving rocker 2 swings within a certain angle under the action of the locking oil cylinder 1 to drive the connecting rod 3 to move, the locking tooth 4 is used as the final driven part of the four-link mechanism, the sensor is engaged with the rotary support 8 to realize the locking result of the rotary support 8, the sensor on the detection sensor mounting bracket is arranged above the driving rocker 2, for detecting the position of the active rocker 2 and thus determining whether the entire device is locked or not based on the detected presence.
As shown in fig. 1 to 4, in the 360 ° mechanical locking mechanism for a hoisting machine, the locking cylinder 1 is an electro-hydraulic controlled bidirectional hydraulic cylinder. The locking oil cylinder 1 is a single-acting spring cylinder. The utility model discloses a when locking hydro-cylinder 1 adopted the single action spring cylinder, big chamber oil feed unblock, and load is unloaded in big chamber, realizes the purpose of revolving stage locking under the spring force drive. The driving rocker 2 and the connecting rod 3 mainly play a role in transferring a motion track and do not participate in force transfer, when the locking teeth 4 are meshed with the slewing bearing 8, the locking teeth bear tangential force generated when the slewing bearing rotates, high-strength steel is selected for better protecting the service life of the locking teeth, and meanwhile, force is transferred on a large bottom plate of the turntable by adopting a certain assembly relation and a certain structural design.
Claims (7)
1. A360 mechanical locking mechanism for hoisting machinery, characterized by: including slewing bearing (8), the both sides of slewing bearing (8) are equipped with big bottom plate of revolving stage (7), be equipped with locking hydro-cylinder (1) on big bottom plate of revolving stage (7), locking hydro-cylinder (1) are connected with locking tooth (4) that use with slewing bearing (8) cooperation through link means.
2. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 1, wherein: a detection sensor for detecting the locked state is also included.
3. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 1, wherein: the rotary table is characterized in that a locking device support (6) is arranged on the rotary table large bottom plate (7), the locking oil cylinder (1) is arranged on the locking device support (6), and the locking oil cylinder (1) is connected with the locking teeth (4) through the driving rocker (2) and the connecting rod (3).
4. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 3, wherein: the locking device is characterized in that one ends of the movable rocker (2) and the locking teeth (4) are fixed on the locking device support (6), and the other ends of the movable rocker (2) and the locking teeth (4) are connected together through the connecting rod (3).
5. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 3, wherein: and a detection sensor mounting bracket (5) is arranged on the locking device bracket (6).
6. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 1, wherein: the locking oil cylinder (1) is an electro-hydraulic control bidirectional hydraulic cylinder.
7. A 360 ° mechanical locking mechanism for a lifting machine as claimed in claim 1, wherein: the locking oil cylinder (1) is a single-acting spring cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921920054.4U CN211039472U (en) | 2019-11-08 | 2019-11-08 | 360-degree mechanical locking mechanism for hoisting machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921920054.4U CN211039472U (en) | 2019-11-08 | 2019-11-08 | 360-degree mechanical locking mechanism for hoisting machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039472U true CN211039472U (en) | 2020-07-17 |
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ID=71568467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921920054.4U Active CN211039472U (en) | 2019-11-08 | 2019-11-08 | 360-degree mechanical locking mechanism for hoisting machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN211039472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253655A (en) * | 2020-11-13 | 2021-01-22 | 南通润邦重机有限公司 | Automatic rotation locking device of crane |
| CN112411121A (en) * | 2020-12-04 | 2021-02-26 | 海信（山东）冰箱有限公司 | Pulsator washing machine |
| CN112726724A (en) * | 2020-12-22 | 2021-04-30 | 徐州徐工挖掘机械有限公司 | Rotary locking hydraulic control system suitable for pipe-hanging excavator |
-
2019
- 2019-11-08 CN CN201921920054.4U patent/CN211039472U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253655A (en) * | 2020-11-13 | 2021-01-22 | 南通润邦重机有限公司 | Automatic rotation locking device of crane |
| CN112411121A (en) * | 2020-12-04 | 2021-02-26 | 海信（山东）冰箱有限公司 | Pulsator washing machine |
| CN112411121B (en) * | 2020-12-04 | 2023-06-23 | 海信冰箱有限公司 | Pulsator washing machine |
| CN112726724A (en) * | 2020-12-22 | 2021-04-30 | 徐州徐工挖掘机械有限公司 | Rotary locking hydraulic control system suitable for pipe-hanging excavator |
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