CN206142714U

CN206142714U - Moment limiter

Info

Publication number: CN206142714U
Application number: CN201621253558.1U
Authority: CN
Inventors: 曹方臣; 袁运韬
Original assignee: Yichang Jinglian Electronic Technology Co Ltd
Current assignee: Yichang Jinglian Electronic Technology Co Ltd
Priority date: 2016-11-15
Filing date: 2016-11-15
Publication date: 2017-05-03
Anticipated expiration: 2026-11-15

Abstract

The utility model provides a moment limiter, including casing, inner ring, first shell fragment, second shell fragment, displacement sensor, sensing inductor, first atress pole, second atress pole, still include air supply line, gasbag, vibrations sensor, the intra -annular formed confined benzene structure in first shell fragment, second shell fragment were located, established displacement sensor on first shell fragment, established cooperation displacement sensor's sensing inductor on the second shell fragment, the inner ring is located in the casing, on the inner ring inner wall was located to the gasbag, gas source equipment was connected to air supply line one end, and the other end passes the casing and connects in the gasbag, and the vibrations sensor is located on the inner ring. The beneficial effect of the utility model: the benzene structure is the hexagon structure, and the deformation volume is bigger, also changes to take place deformation, can not take place the signal and send hysteretic phenomenon, gas source equipment opens the switch and inflates for the gasbag, plays shock -proof action, and the gasbag also can play the guard action to it after moment limiter dropped in the high altitude, prevented to fall the damage.

Description

Limiter of moment

Technical field

This utility model is related to a kind of safety device for preventing tower crane lifting capacity over loading, and particularly a kind of torque is limited Device.

Background technology

Traditional limiter of moment is mostly circular ring type, and it is mainly by torus, the cambered plate being located in annulus body and sensing Device, two force rods for being fixed on torus outer wall and the fixed block composition being located in fix bar.Drawing is received by force rod Power, drives cambered plate deformation, and then makes working sensor and send signal, but cambered plate stress and deformation is less, easily causes and sends Signal lag, and because limiter of moment effect itself is for preventing tower crane lifting capacity over loading, when tower crane works, then The arm of force itself inherently forms vibrations, and this shook conference and limiter of moment internals are caused to damage, if occurring serious Tower crane arm of force fracture during accident is dropped from high-altitude, and limiter of moment body also can drop therewith, or limiter of moment is fixed loosely Gu dropping from tower crane, the serious damaged in collision that drops is caused.

Utility model content

Therefore the utility model proposes a kind of limiter of moment, solving existing limiter of moment, easily to send signal stagnant Afterwards, the shortcoming of limiter of moment body is damaged after internals because of vibrations damage and high-altitude because dropping.

What the technical solution of the utility model was realized in：A kind of limiter of moment, including housing, internal ring, the first bullet Piece, the second shell fragment, displacement transducer, sensing induction apparatuss, the first force rod, the second force rod, also including source of the gas line, air bag, shake Dynamic sensor；In the internal ring, first shell fragment includes first level end, is divided into for first shell fragment, the second shell fragment One horizontal ends two ends and connect internal ring inwall the first connection end, the second connection end, second shell fragment include the second horizontal ends, It is divided into the second horizontal ends two ends and connects the 3rd connection end, the 4th connection end of internal ring inwall, the 3rd connection end connection First connection end, the 4th connection end connects the benzene ring structure that the second connection end forms closing, and on the first shell fragment displacement sensing is set Device, the sensing induction apparatuss of establishing resultant displacement sensor on the second shell fragment；It is located in housing in described, first force rod Connect the junction of the 3rd connection end and the first connection end through housing, the second force rod through housing connect the 4th connection end with The junction of the second connection end, the first force rod, the second force rod sense the pulling force of two relative directions drive the first shell fragment, the The benzene ring structure deformation that two shell fragments are formed, displacement transducer cooperatively forms a sensing mechanism with sensing induction apparatuss, with the first bullet The deformation sensing contact of the benzene ring structure that piece, the second shell fragment are formed sends signal, and benzene ring structure is hexagonal structure, and deformation quantity is more Greatly, also it is more easy to deform upon, signal will not occurs and send delayed phenomenon；The air bag is located on internal ring inwall, the source of the gas Line one end connects air machinery, and the other end is connected to air bag through housing, and the shaking sensor is located on internal ring, shaking sensor Impression shakes and sends signal, reception device induced signal and signal Analysis power, be signaled to after setting value more than shaking Air machinery, air machinery opens switch to airbag aeration, plays antihunt action, and limiter of moment drops rear gasbag in high-altitude It can be played a protective role, prevent from falling damage.

Further, the shaking sensor is on internal ring inwall.Scientific utilization enclosure interior space, reduces housing Volume, reduces cost.

Further, institute's displacement sensors are including the fixed block being connected on the inside of first level end, on fixed block Contact, the sensing induction apparatuss are located at the second horizontal ends inner side and relative with contact and set.Sensing induction apparatuss are coordinated using contact, Sensing is sensitiveer, and, located at first level end inner side, sensing induction apparatuss are located at the second horizontal ends inner side, and displacement is most short for displacement transducer And be easiest to experience deformation, send signal not delayed.

By above disclosure, the beneficial effects of the utility model are：First force rod, the second force rod sense two The pulling force of relative direction drives the benzene ring structure deformation that the first shell fragment, the second shell fragment are formed, displacement transducer and sensing induction apparatuss A sensing mechanism is cooperatively formed, the deformation sensing contact of the benzene ring structure formed with the first shell fragment, the second shell fragment sends signal, Benzene ring structure is hexagonal structure, and deformation quantity is bigger, is also more easy to deform upon, and signal will not occur and send delayed phenomenon；Gas Source device opens switch to airbag aeration, plays antihunt action, and limiter of moment also can be played in the high-altitude rear gasbag that drops to it Protective effect, prevents from falling damage.

Description of the drawings

Fig. 1 is the structural representation inside this utility model.

Fig. 2 is the structural representation outside this utility model.

Fig. 3 is the shell fragment of this utility model first, the structural representation of the second shell fragment.

Reference is as follows：

1 housing, 2 internal ring, 3 first shell fragments, 31 first level ends, 32 first connection ends, 33 second connection ends, 4 second bullets Piece, 41 second horizontal ends, 42 the 3rd connection ends, 43 the 4th connection ends, 5 fixed blocks, 6 sensing induction apparatuss, 7 first force rods, 8 the Two force rods, 9 source of the gas lines, 10 contacts, 11 air bags, 12 shaking sensors.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.

As shown in Figures 1 to 3, limiter of moment, including housing 1, internal ring 2, the first shell fragment 3, the second shell fragment 4, displacement sensing Device, sensing induction apparatuss 6, the first force rod 7, the second force rod 8, also including source of the gas line 9, air bag 11, shaking sensor 12.

Referring to Fig. 1, Fig. 3, in internal ring 2, first shell fragment 3 includes first for first shell fragment 3, the second shell fragment 4 Horizontal ends 31, the first connection end 32, the second connection end 33 that are divided into the two ends of first level end 31 and the connection inwall of internal ring 2, institute Stating the second shell fragment 4 includes the second horizontal ends 41, is divided into the two ends of the second horizontal ends 41 and connect the 3rd connection end of the inwall of internal ring 2 42nd, the 4th connection end 43, the 3rd connection end 42 connects the first connection end 32, and the 4th connection end 43 connects the second connection end 33 The benzene ring structure of closing is formed, displacement transducer is set on the first shell fragment 3, the establishing resultant displacement sensor on the second shell fragment 4 Sensing induction apparatuss 6, wherein displacement transducer 5 are including the fixed block 5 being connected on the inside of first level end 31, on fixed block 5 Contact 10, the sensing induction apparatuss 6 are located at the inner side of the second horizontal ends 41 and relative with contact 10 and set.

The internal ring 2 is circular ring, and in housing 1, first force rod 7 connects through the connection of housing 1 the 3rd The junction of the connection end 32 of end 42 and first is connect, the second force rod 8 connects the 4th connection end 43 and the second connection end through housing 1 33 junction.

On the inwall of internal ring 2, described one end of source of the gas line 9 connects air machinery to the air bag 11, and the other end passes through housing 1 Air bag 11 is connected to, the shaking sensor 12 is on the inwall of internal ring 2.

First force rod 7, the second force rod 8 are connected on the equipment arm of force, when the arm of force is beyond load, produce torque, First force rod 7, the second force rod 8 are stretched out, the first force rod 7 drive the 3rd connection end 42 and the first connection end 32 to Out-draw, the second force rod 8 drives the 4th connection end 43 to stretch out with the second connection end 33, now located at first level end 31 The contact 10 of inner side with located at the inner side of the second horizontal ends 41 and with the distance of sensing induction apparatuss 6 that is relative and setting of contact 10 shorten up to Contact, sends transducing signal, and transducing signal reaches processor, is for further processing：When the 90% of rated weight is exceeded, just Send acousto-optic early warning；During more than rated weight 100%, sound and light alarm prompting is sent, during more than 105%, output control letter Number, the control loop that crane runs to dangerous direction is disconnected automatically, but allow to be run to safe direction, so as to reach safe guarantor The purpose of shield；Shaking sensor 12 experiences arm of force vibrations, and passes vibration signal the reception device of processor back, according to setting, Inflate to air bag 11 to air machinery when vibrations send signal more than setting value preprocessor, air bag 11 is heaved and wraps housing 1 Inner member, the internals of protective housing 1 are not damaged by vibrations.

Operation principle of the present utility model：Displacement transducer, sensing induction apparatuss 6 coordinate, and form a sensing mechanism, according to First shell fragment 3, the second shell fragment 4 form the deformation of benzene ring structure, and displacement transducer, sensing induction apparatuss 6 are contacted so as to send biography Sense signal, simple structure is easy to use, and shaking sensor 12 and the air bag for using cooperatively is arranged in limiter of moment housing 1, The internals of protective housing 1, increase service life of the present utility model.

Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng This utility model has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this The technical scheme of utility model is modified or equivalent, without deviating from the objective and model of technical solutions of the utility model Enclose, it all should cover in the middle of right of the present utility model.

Claims

1. limiter of moment, including housing (1), internal ring (2), the first shell fragment (3), the second shell fragment (4), displacement transducer, sensing Induction apparatuss (6), the first force rod (7), the second force rod (8), it is characterised in that：Also include source of the gas line (9), air bag (11), shake Dynamic sensor (12)；

In internal ring (2), first shell fragment (3) is including first level end for first shell fragment (3), the second shell fragment (4) (31) first level end (31) two ends, are divided into and connect the first connection end (32), second connection end of internal ring (2) inwall (33), second shell fragment (4) including the second horizontal ends (41), be divided into the second horizontal ends (41) two ends and connect internal ring (2) 3rd connection end (42) of inwall, the 4th connection end (43), the 3rd connection end (42) connects the first connection end (32), and the 4th Connection end (43) connection the second connection end (33) forms the benzene ring structure of closing, and on the first shell fragment (3) displacement transducer is set, in The sensing induction apparatuss (6) of establishing resultant displacement sensor on second shell fragment (4)；

The internal ring (2) in the housing (1), first force rod (7) through housing (1) connect the 3rd connection end (42) with The junction of the first connection end (32), the second force rod (8) connects the 4th connection end (43) and the second connection end through housing (1) (33) junction；

On internal ring (2) inwall, described source of the gas line (9) one end connects air machinery to the air bag (11), and the other end passes through shell Body (1) is connected to air bag (11), and the shaking sensor (12) is on internal ring (2).

2. limiter of moment as claimed in claim 1, it is characterised in that：The shaking sensor (12) is in internal ring (2) On wall.

3. limiter of moment as claimed in claim 1, it is characterised in that：Institute's displacement sensors include being connected to first level end (31) fixed block (5) on the inside of, the contact (10) on fixed block (5), sensing induction apparatuss (6) is located at the second horizontal ends (41) inner side and relative with contact (10) and set.