CN209651713U - A kind of lifting clamp device - Google Patents

Abstract

The utility model relates to a kind of lifting clamp devices, including suspention weighing device, pincers tongue, caliper, moveable flap, compactor；Caliper is in Contraband character form structure, and medium position is vertically arranged the adjustable compactor of pressing force, and compactor compaction direction is inside；It clamps tongue and is equipped with latch in arc shaped, pincers tongue structure lower end is tilted outward, the upper end is flexibly connected with suspention weighing device lower end；It clamps hinged with one end of caliper in the middle part of tongue；The caliper other end and a pair of of moveable flap are hinged, and hinged place is equipped with torsion mechanism, and the pair of moveable flap is set to caliper two sides, and when moveable flap light condition is upturned.The utility model realizes the unification of round log and lumps of wood suspender, monitors hoisting heavy whether in reasonable load range using intelligentized means by making up the vacancy of square lumber suspender, to realize simplicity, efficiently, safety and intelligence lifting had not only guaranteed the safety of worker but also had improved the efficiency of engineering.

Description

A kind of lifting clamp device

Technical field

The utility model relates to a kind of lifting clamp devices, are a kind of lifting clamp devices specifically.

Background technique

Timber is divided into round log and two major classes of becoming a useful person.It becomes a useful person as machined or preparatory processing timber, is divided into the lumps of wood and plate Two kinds of material.Lifting for round log usually uses horse hook (Fig. 1), wire line hitch (Fig. 2), buckle hoist cable (Fig. 3), and grab bucket has come At.

Becoming a useful person in fields such as buildings is the material being commonly used, therefore is had for the research of the derricking gear of worked timber Its very important actual demand.But the boom hoisting in Practical Project for the lumps of wood is seldom.Relatively common is suspender belt, Also there is (Fig. 5) using compression type fixture.

Usual two cyclic annular suspender belts use simultaneously when suspender belt use, carry out lifting operation after timber is passed through suspender belt.

Lever compression type fixture (Fig. 5) is the device for the lifting of plate timber originally, but due to the lifting for the lumps of wood Device is seldom, is also used to lift by crane the lumps of wood, stacks timber across suspender before lifting, is placed on suspender platform, opens Begin to lift by crane the tension of back upper place hoist cable, the tightening of two bars is pulled by lever principle, pressure is generated to keep timber to the timber of lower section Balance.

But these types of boom hoisting cannot all realize easy, efficient, the safety lifting of the lumps of wood well.Many engineerings exist When practice of construction, the especially building site of building maintenance, finishing, it is only necessary to or condition is only able to satisfy the lifting of a small amount of timber, it is above-mentioned Device is all difficult meet demand.Round log is with the differentiation of lumps of wood boom hoisting but also lifting operation becomes more numerous at the same time It is trivial.And when the carrying of hoist cable excess load, the life that will lift worker hangs in the balance.

To sum up, existing for boom hoisting used by square objects, the especially lumps of wood, it has the problem that

1) safety is poor: when being lifted by crane using suspender belt, suspender belt is directly contacted with the sharp corner of the lumps of wood and rough surface, It is easy to be worn, needs running check, replacement suspender belt, just can ensure that safety.When in addition being lifted by crane using suspender belt, the top The lumps of wood and suspender belt between have a biggish interval, and there is no pressing device, if run-off the straight during lifting, the lumps of wood is easy Landing is got off, and safety accident is caused.It is complicated for operation, inefficiency: before suspender belt lifting, need the shape important to note that loading timber State, to keep steadily of centre of gravity, in order to avoid unbalance loading, therefore mobile suspender belt and when cargo, can not be pulled before lifting；It should be noted that preventing from hanging Band knots, beats and twist, can not Suspended Cargo overlong time.Before the lifting of compression type fixture, need to be well placed the lumps of wood is neat, ability Reach preferable clamping effect.The complexity of the two operation causes the efficiency for lifting the lumps of wood using the two lower.

2) flexibility is poor, and suitable environment is few: whether suspender belt or compression examination fixture, volume is all larger, in construction space It is inconvenient for use in limited situation.In addition, the two is more suitable for a case where handling more lumps of wood, if execution conditions are only permitted every time Perhaps a small amount of lumps of wood of handling is to job position, then both seem waste, nor can fix the lumps of wood well, to guarantee Not safety.

3) lack of wisdom: when lifting overload and continuous operation, it will bring very big security risk.In this case, Current suspender is unable to fully assist manual work using pulling force data in hoisting process, guarantees Hoisting Security.

Utility model content

The utility model is intended to provide a kind of square objects lifting clamp device, by making up the vacancy of square lumber suspender, The unification for realizing round log and lumps of wood suspender, using intelligentized means monitoring hoisting heavy whether in reasonable load range, To realize simplicity, efficiently, safety and intelligence lifting had not only guaranteed the safety of worker but also had improved the efficiency of engineering.

The utility model takes following technical scheme:

A kind of lifting clamp device, including suspention weighing device, pincers tongue 2, caliper 1, moveable flap 3, compactor 4；Caliper 1 is in Contraband character form structure, medium position are vertically arranged the adjustable compactor 4 of pressing force, and 4 compaction direction of compactor is inside；Clamping tongue 2 is in Arc shaped is tilted outward, and the upper end is flexibly connected with suspention weighing device lower end, and lower end is equipped with latch；Clamp 2 middle part of tongue and pincers One end of body 1 is hinged；1 other end of caliper and a pair of of moveable flap 3 are hinged, and hinged place is equipped with torsion mechanism, the pair of movable Baffle 3 is set to 1 two sides of caliper, and when 3 light condition of moveable flap is upturned.

Further, the weighing device includes apparatus for warning overload 9, and 9 upper and lower side of apparatus for warning overload is given to be hung equipped with one Ring 10, the hanging ring 10 of lower end, which is hung by another hanging ring 8 with pincers tongue 2, to be connect.

Further, another hanging ring 8 is equipped with card 6 with pincers 2 junction of tongue.

Further, apparatus for warning overload 9 is made of S-shaped tension sensor connection single-chip microcontroller control buzzer.

Further, the torsion mechanism is clockwork spring, and the torsion of the clockwork spring is adjustable.

Further, the rectangular, circular object is timber.

Further, the both ends of the caliper 1 of Contraband font are gradually thickeied to centre, and rotation angle position is designed to round-corner transition.

Further, the upper surface of 1 lower part of caliper and the upper surface of moveable flap 3 are equipped with dentalation.

Further, circular shaft is stretched out at caliper bottom both ends, and clockwork spring is welded on axis, and clockwork spring and moveable flap 3 weld, in Centre is run through by screw.

Further, the both ends of the caliper 1 of the Contraband font are wide with 10 ° of contention gradual changes to centre, make at right angle corner Fillet processing.

The utility model has the beneficial effects that:

1) apparatus for warning overload has been added between hanging ring and lifting rope, device controls bee by S-shaped tension sensor connection single-chip microcontroller Ring device, and when load is exceeded, buzzer issues alarm.

2) caliper lower part two sides increase baffle, and baffle connects with caliper axis, and clockwork spring two sides attachment screw is wound on axis and to keep off Piece can also effectively clamp cylindrical shape wood while realizing angular transformation, be realized by the compactor on the right side of precession to different sizes The clamping of the timber of shape.

3) hoisting tongs using when directly by timber stick into pincers tongue and caliper in, with it is traditional with rope binding compared to saving when Between, work efficiency is high.

4) by carrying out stress analysis to device, stress raiser, the position being easily broken off are thickeied, non-key position subtracts The use of few material；By the corner design of U-shaped caliper at fillet, be further ensured that safety when use, to intensity requirement compared with The use that material is reduced in small place reduces cost on the premise of ensuring performance, reaches maximization of economic benefit.

5) the utility model is realized self-locking using the gravity of timber, is not had to the external world to hoisting tongs and is provided energy；Simplify worker It can guarantee that timber is locked always during lifting while operation, raising lifting efficiency, to guarantee the safety of lifting Property.

6) it is realized by increasing baffle in caliper bottom and increasing adjustable screw compactor in caliper side to round log Effective clamping of dimensional lumbers different with lumps of wood different shape.

Detailed description of the invention

Fig. 1 is that horse hooks the schematic diagram hung.

Fig. 2 is the schematic diagram of wire line hitch lifting.

Fig. 3 is the schematic diagram of buckle hoist cable lifting.

Fig. 4 is the schematic diagram of round log clamp lifting.

Fig. 5 is the schematic diagram of compression type fixture lifting.

Fig. 6 is the main view of the utility model lifting clamp device.

Fig. 7 is the schematic diagram of moveable flap and clockwork spring.

Fig. 8 is the schematic diagram for clamping tongue.

Fig. 9 is the schematic diagram of compactor.

Figure 10 is the perspective view of the utility model lifting clamp device.

Figure 11 is the schematic diagram of lumps of wood clamping.

Figure 12 is the schematic diagram of round log clamping.

Figure 13 is the schematic diagram of weighing device.

In figure, 1 caliper, 2 pincers tongues, 3 moveable flaps, 4 compactors, 5 pivot pins, 6 cards, 7 screws, 8 hanging rings, 9 overload-alarms Device, 10 hanging rings, 11 clockwork springs.

Specific embodiment

The present invention will be further described in the following with reference to the drawings and specific embodiments.

The utility model basic conception is: the characteristics of according to timber (round and rectangular) lifting operation, by the way that tongue will be clamped, Caliper, baffle, compactor, (tension sensor and monolithic processor controlled buzzer carry out multifunction collection to apparatus for warning overload At, make its work compound as a whole, according to clamping timber shape and size adjusting compression device, pass through the self weight of timber Lock pincers tongue downwards, to can realize effective clamping to round log and the lumps of wood；By increasing apparatus for warning overload, by monolithic The buzzer of machine control is constituted, and is sounded an alarm when added load is exceeded, is improved safety and the practicability of hoisting tongs.Specific knot Structure is described below:

Referring to Fig. 6-13, lifting clamp device, including suspention weighing device, pincers tongue 2, caliper 1, moveable flap 3, compactor 4； Caliper 1 is in Contraband character form structure, and medium position is vertically arranged the adjustable compactor 4 of pressing force, and 4 compaction direction of compactor is inside； It clamps tongue 2 and is flexibly connected in arc shaped, the upper end is tilted outward with suspention weighing device lower end, lower end is equipped with latch；It clamps in tongue 2 Portion and one end of caliper 1 are hinged；1 other end of caliper and a pair of of moveable flap 3 are hinged, and hinged place is equipped with torsion mechanism, and described one 1 two sides of caliper are set to moveable flap 3, when 3 light condition of moveable flap is upturned.

Referring to Fig. 6 and Figure 13, the weighing device includes apparatus for warning overload 9, and 9 upper and lower side of apparatus for warning overload is equipped with One hanging ring 10, the hanging ring 10 of lower end, which is hung by another hanging ring 8 with pincers tongue 2, to be connect.

Referring to Fig. 6, another hanging ring 8 is equipped with card 6 with pincers 2 junction of tongue.

Referring to Fig. 6, apparatus for warning overload 9 is made of S-shaped tension sensor connection single-chip microcontroller control buzzer.

Referring to Fig. 7, the torsion mechanism is clockwork spring, and the torsion of the clockwork spring is adjustable, specifically, caliper bottom both ends are stretched out Circular shaft is welded with clockwork spring on axis, and clockwork spring and moveable flap 3 weld, and center is run through by screw.When not being put into timber, clockwork spring For tense situation.

Referring to Figure 11 and 12, the rectangular, circular object is timber.

Referring to Fig. 6 and 13, the both ends of the caliper 1 of Contraband font are gradually thickeied to centre, and rotation angle position is designed to fillet mistake It crosses, specifically, the both ends of the caliper 1 of the Contraband font are wide with 10 ° of contention gradual changes to centre, makees fillet processing at right angle corner.

Referring to Fig. 6, the upper surface of 1 lower part of caliper and the upper surface of moveable flap 3 are equipped with dentalation.

Specifically, caliper part is gradually thickeied from U-shaped structure both ends to centre, takes full advantage of structure by distributed force The characteristic distributions of stress when system acts on, the use of material is reduced in the case where guaranteeing safely and effectively, reduces cost, realizes interests It maximizes.Meanwhile corner is designed to round-corner transition, effectively reduces the phenomenon that stress is concentrated, enhances the strong of caliper Degree.

Referring to Figure 12 and Figure 13:

In Figure 12, range of stress 2.733e⁺⁰⁵-6.723e⁺⁰⁹；Caliper upright side walls are moment of flexure maximum, maximum stress Reach 6.723e⁺⁰⁹, due to stress concentration phenomenon at right angle corner；Entire caliper tectonic stress is unevenly distributed, and is answered in upright side walls Power is very poor up to arrive 5.000e⁺⁰⁹, easily occur due to local stress excessive the case where causing caliper to be broken when lifting, caliper is hung Dress performance is severely limited.

Figure 13 is structure after optimization, and suspension hook both ends are relatively narrow, wide with about 10 ° of contention gradual changes, makees fillet processing at right angle corner. The range of stress is 2.109e⁺⁰⁵-5.939e⁺⁰⁹；Entire caliper stress distribution is uniform, and numerical value reduces before relatively optimizing, and corner answers Power concentration phenomenon disappears.Since stress intensity difference is little everywhere for caliper, caliper is not easy to limit lifting because fracture locally occurs Performance.

Meanwhile clamp tongue be the arc-shaped structure with dentation, design it is in the arc-shaped be in order to enable pincers tongue with it is various sizes of Wood surface comes into full contact with, and makes tonger is stronger must clamp timber.In addition, because timber size is variation, in order to make lifting Pincers can effectively clamp various sizes of timber, clamp and be designed to that pivot pin connects between tongue and caliper, and pincers tongue can be around axis Pin rotation, makes full use of the gravity of timber itself to reach gravity self-locking.In order to make timber be not easy to fall during transfer, this reality With the novel lower part in caliper also added with dentalation.

Timber folded by the utility model is round log and the lumps of wood, it is contemplated that if round log size is smaller, pincers tongue cannot apply it Plus-pressure, the utility model stretch out the circular shaft of certain length at caliper bottom both ends, are welded with clockwork spring on axis, clockwork spring again with it is outer Baffle welding is connect, center is run through by screw, while having added adjustable screw compactor in caliper side, when timber is not added, hair Item is tense situation, if the timber being put into is the lumps of wood, the lumps of wood will depress baffle, as shown in figure 11；If the timber being put into It is round log, then tightens screw at appropriate angle as round log and support, while the screw of adjustable caliper side, fixed circle are provided Wood is clamping intracorporal position, to make to realize effective clamping to round log, as shown in figure 12.

The main function of hanging ring is will to clamp tongue to connect with S-shaped tension sensor, S-shaped tension sensor again with lifting rope phase Even, therefore tension sensor can be with the pulling force on real-time measurement lifting rope, when added load is more than the tolerance range of device, voltage Variation passes to single-chip microcontroller, and the buzzer of control correspondingly sounds an alarm, is unlikely to have sling timber in hoisting apparatus So that structure is generated destruction because pulling force is excessive after certain altitude, causes safety accident.

The special caliper shape of the utility model is lifted by crane suitable for square lumber, fills up a small amount of square lumber hoisting sling Vacancy；Increase the compactor of side, the baffle with caliper lower part, a hook is dual-purpose, realizes to the various sizes of lumps of wood and round log Lifting operation；Mechanical analysis is passed through in configuration design, optimizes caliper structure, effectively reduces stress concentration phenomenon, Rational structure Be conducive to the intensity bigger using less materials serve, more economical safety.

It is the preferred embodiment of the utility model above, those of ordinary skill in the art can also carry out respectively on this basis Kind of transformation improves, and under the premise of not departing from the utility model total design, these transformation or improves this reality all should belong to Within the scope of novel be claimed.

Claims (9)

1. a kind of lifting clamp device, it is characterised in that:

Including suspention weighing device, pincers tongue (2), caliper (1), moveable flap (3), compactor (4)；

Caliper (1) is in Contraband character form structure, and medium position is vertically arranged the adjustable compactor of pressing force (4), and compactor (4) compresses Direction is inside；

It clamps tongue (2) and is flexibly connected in arc shaped, the upper end is tilted outward with suspention weighing device lower end, lower end is equipped with latch； It clamps hinged with one end of caliper (1) in the middle part of tongue (2)；

Hingedly, hinged place is equipped with torsion mechanism, the pair of moveable flap (3) for caliper (1) other end and a pair of of moveable flap (3) Set on caliper (1) two sides, when moveable flap (3) light condition, is upturned.

2. lifting clamp device as described in claim 1, it is characterised in that: the weighing device includes apparatus for warning overload (9), Apparatus for warning overload (9) upper and lower side is equipped with a hanging ring (8), and the hanging ring (8) of lower end, which is hung by another hanging ring with pincers tongue (2), to be connect.

3. lifting clamp device as claimed in claim 2, it is characterised in that: another hanging ring is equipped with pincers tongue (2) junction Card (6).

4. lifting clamp device as claimed in claim 2, it is characterised in that: apparatus for warning overload (9) is connected by S-shaped tension sensor Single-chip microcontroller control buzzer is connect to constitute.

5. lifting clamp device as described in claim 1, it is characterised in that: the torsion mechanism is clockwork spring, the torsion of the clockwork spring Power is adjustable.

6. lifting clamp device as described in claim 1, it is characterised in that: the both ends of the caliper (1) of Contraband font are relatively intermediate to be thickeied, And rotation angle position is designed to round-corner transition.

7. lifting clamp device as described in claim 1, it is characterised in that: the upper surface of caliper (1) lower part and moveable flap (3) upper surface is equipped with dentalation.

8. lifting clamp device as described in claim 1, it is characterised in that: circular shaft is stretched out at caliper bottom both ends, is welded on axis There is clockwork spring, clockwork spring and moveable flap (3) are welded, and center is run through by screw.

9. lifting clamp device as claimed in claim 6, it is characterised in that: the both ends of the caliper (1) of the Contraband font are to centre It is wide with 10 ° of contention gradual changes, make fillet processing at right angle corner.