CN1284718C - Electric-manual two-purpose jack - Google Patents

Abstract

The present invention relates to an electric and manual double-purpose jack. A speed reducer connected with a motor is provided with a connection seat which is provided with a speed sensor. A worm screw is axially arranged in the connection seat. One end of the worm screw is connected with the output shaft of the speed reducer through a connection mechanism, and the other end is connected with a manual mechanism through a connector. The worm screw is engaged with a worm wheel arranged in a casing. The worm wheel is connected with a base and is connected with a lifting mechanism provided with a stable disk. The present invention can lift a 100 tons of loading body and can be used for raising and lowering large tonnage loading bodies. The lifting process of the present invention can be controlled. Multiple jacks can be synchronously used. The present invention has the advantages of simple structure, safe and reliable work, high efficiency, high stability, easy automatic control realization, etc. The present invention can be popularized in a road bridge changeover portion subgrade settlement test platform and can be used for horizontal movement for heavy objects, for example, the horizontal movement of a building.

Description

The electric-hand driven two-purpose jack

Technical field

The invention belongs to the elevator, lifting or the draw gear technical field that hoisting force or propelling thrust are directly acted on the load surface, be specifically related to have the device of lifting load continuously that is used for of providing electrical motor for oneself, as jack.

Background technology

The jack that generally uses has the mechanical type lifting screw at present, keystone configuration adopts wind to rotate and drives the trapezoid thread screw rotation, making with screw rod adopts the jacking sleeve of spiral marking connection to move up and down, with load-carrying body jack-up or put down, operation realizes the purpose of jack-up load-carrying body by manpower with the wind of rolling over, and labour intensity is big, this jack can only be applicable to the load-carrying body that jack-up weight is lighter, the load-carrying body heavier to weight, because of the manpower arm exert all one's strength limited, can't jack-up.Another kind of jack is a hydraulic jack, hydraulic jack adopts the hydraulic press principle, the operator pressurizes with arm operation valve piston, through the hydraulic oil transmission, the drive big piston moves up and down, with load-carrying body jack-up or put down, this jack has many advantages, laborsaving, the operator just can or put down heavier load-carrying body jack-up with very little power, but the speed that the load-carrying piston rod of this jack moves up and down is inhomogeneous, be applicable to single load-carrying body jack-up mostly or put down, when needing a plurality of jacks to move up simultaneously with its jack-up to the heavy especially load-carrying body of weight, powerless owing to can't realize all jack synchronized operations, carry out horizontal direction as jack-up that big shape building is made progress and move.Hydraulic jack also has a problem, Here it is utilize it with weight jack-up after leak because hydraulic efficiency pressure system has some unavoidably, so to realize keeping for a long time be very difficult.

Number of patent application is the Chinese invention patents of 87101934 denominations of invention for " electronic jack ", its keystone configuration is to drive ball screw by a magneto micro-motor by Worm and worm-wheel gearing to move up and down load-carrying body jack-up or put down, the load-carrying body of this electronic very heavy jack-up below 10 tons, for greater than the load-carrying body more than 10 tons, powerless.In addition, this electronic jack has adopted the ball screw thread to come transmission power, makes the complex structure of this electronic jack, and reliability reduces, and productive costs improves, and is unfavorable for promoting the use of of this electronic jack.

Usually adopt key connecting when reducer output shaft that uses or motor output shaft and transmission device link at present, this key has webge groove, and square key is also arranged.The major defect of this connector is: dismantle difficulty when connecting when needs disconnect.

Summary of the invention

Technical matters to be solved by this invention is to overcome the shortcoming of above-mentioned electronic jack, for road-bridge transition section subsidence test platform provide a kind of simple in structure, safe and reliable, efficient is high, good stability, be easy to realize automatically controlled electric-hand driven two-purpose jack.

Solving the problems of the technologies described above the technical scheme that is adopted is: be provided with Connection Block with the joining retarder of electrical motor, Connection Block is provided with tachogen, in Connection Block, axially establish an end by coupling mechanism links with the output shaft of retarder, the other end and hand gear connect by connector worm screw, worm screw is meshed with the worm gear that is arranged on in the joining housing of base, and worm gear links by connector and the lifting mechanism that is provided with stable disk.

The joining coupling mechanism of the output shaft of worm screw of the present invention and retarder is: in the worm screw outer setting adapter sleeve is arranged, be provided with output shaft and the joining jack linking bond of worm screw with retarder in adapter sleeve, the jack linking bond is provided with the jump ring with the adapter sleeve overlap joint.Lifting mechanism of the present invention is: be outside equipped with and the joining swivel nut of jacking sleeve with the joining screw rod of worm gear, outside jacking sleeve, axially and between the housing be provided with feather key, upper end at jacking sleeve is provided with loading plate, is provided with stable disk in the bottom of screw rod.Being shaped as of stable disk of the present invention: in the processing of the center of external shape tabular body identical or be manufactured with centre hole with lower geometry in the housing.

Jack linking bond of the present invention be shaped as four prisms cylinder, radially process or be manufactured with screw in the center of four prisms cylinder.

Process or be manufactured with jack linking bond mounting hole on the jacket wall of adapter sleeve of the present invention.

The present invention is a kind of electronic jack of mechanical type spiral that utilizes common motor as propulsion source, adopt the jack linking bond of the quadrangular bodily form, make the worm screw and the output shaft of retarder be easy to connect or throw off, carry out electronic and manual conversion mutually, bottom at lifting screw is equipped with stable disk, when making its jack-up weight, good stability.The present invention can promote 100 tons load-carrying body, be used for the rising or the decline of large-tonnage load-carrying body, its lifting process can be controlled, many can be used synchronously, have simple in structure, safe and reliable, efficient is high, good stability, be easy to realize advantages such as automatic guidance, can on road-bridge transition section subsidence test platform, promote the use of, also can be used for the parallel motion of heavy objects, as the parallel motion of building.

Description of drawings

Fig. 1 is the front view of one embodiment of the invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

The specific embodiment

The present invention is described in more detail below in conjunction with drawings and Examples, but the invention is not restricted to these embodiment.

Embodiment 1

In Fig. 1,2,3, the electric-hand driven two-purpose jack of present embodiment is to be connected by electrical motor 1, retarder 2, adapter sleeve 3, tachogen 4, Connection Block 5, jack linking bond 6, housing 7, hand gear 8, base 9, jump ring 10, worm screw 11, worm gear 12, screw rod 13, loading plate 14, jacking sleeve 15, feather key 16, swivel nut 17, stable disk 18 to constitute.Wherein, adapter sleeve 3, jack linking bond 6, jump ring 10 are connected into coupling mechanism of the present invention, and screw rod 13, loading plate 14, jacking sleeve 15, feather key 16, swivel nut 17, stable disk 18 are connected into lifting mechanism of the present invention.

The output shaft of electrical motor 1 links by the input shaft of connector and retarder 2, electrical motor 1 is for the invention provides power, the rotating speed of electrical motor 1 is controlled by control system, retarder 2 is fixedly connected by screw threads for fastening connector and Connection Block 5, tachogen 4 is installed on Connection Block 5, tachogen 4 links to each other with control system by lead, in Connection Block 5, be axially installed with worm screw 11, the outer cover of worm screw 11 is equipped with adapter sleeve 3, be processed with jack linking bond mounting hole on the jacket wall of adapter sleeve 3, be used for jack linking bond 6 being packed into from the hole or taking out, worm screw 11 links by the output shaft of jack linking bond 6 with retarder 2.The jack linking bond 6 of present embodiment be shaped as four prisms cylinder, center at four prisms cylinder radially is processed with screw, when the output shaft of worm screw 11 and retarder 2 links, in jack linking bond 6 pack the keyway of worm screw 11 and retarder 2 into from the outside of adapter sleeve 3, worm screw 11 is connected with the output shaft of retarder 2, outwards deviate from order to prevent jack linking bond 6, jump ring 10 is installed on jack linking bond 6, the other end of jump ring 10 and adapter sleeve 3 overlap joints are used to prevent that jack linking bond 6 from outwards deviating from.If when worm screw 11 is thrown off with the output shaft of retarder 2, pull down jump ring 10, bolt is screwed in the screw on the jack linking bond 6, continue to be screwed into bolt again, jack linking bond 6 can be back-outed, worm screw 11 throws off with the output shaft of retarder 2, realizes manually.The jack linking bond 6 of this structure of present embodiment has overcome the conventional pin transmission shortcoming that moment of rotation is little and dismounting is inconvenient, but the present invention's jack-up heavy object more than hundred tons, and can realize electronic-conversion between manually easily.The other end of worm screw 11 and hand gear 8 connect by connector, the structure of the structure of hand gear 8 and conventional mechanical formula jack hand gear is identical, hand gear 8 need to be used to jack-up weight of the present invention to do upwards that trace moves or when needing manual operation, but operator's operator actuation mechanism 8.In order to reduce the pivoting friction torque of worm screw 11, when worm screw 11 is installed in housing 7, between worm screw 11 and the housing 7 bearing seat and bearing are installed also.The lower end of housing 7 is equipped with worm gear 12 by the screw threads for fastening connector base 9 that has been fixedly connected in housing 7, worm gear 12 is meshed with worm screw 11, and worm screw 11 is rotated, and drives worm gear 12 and rotates.Worm gear 12 links by key and screw rod 13, outside screw rod 13, swivel nut 17 is arranged by thread connection, swivel nut 17 links by key and jacking sleeve 15, and feather key 16 is installed in the axial keyway outside jacking sleeve 15, and feather key 16 usefulness screw threads for fastening connectors are fixedly connected on the housing 7.Screw rod 13 cws or rotate counterclockwise drive jacking sleeves 15 by swivel nut 17 and move up or down.At the upper end of jacking sleeve 15 and jacking sleeve 15 loading plate 14 that has been connected as a single entity, loading plate 14 can be placed under the platen bearing of road-bridge transition section subsidence test platform, can will be placed on the load-carrying object jack-up on the platen bearing of road-bridge transition section subsidence test platform or put down.In the bottom of screw rod 13 stable disk 18 is installed, the geometric configuration of stable disk 18 is a disk, identical with the geometric configuration of bottom in the housing 7, center in stable disk 18 processes or is manufactured with centre hole, the physical dimension of the physical dimension of centre hole and screw rod 13 bottoms is identical, stable disk 18 can be sleeved on outside screw rod 13 bottoms, the inwall overlap joint of bottom in the edge of stable disk 18 and the housing 7, stable disk 18 is used for jacking sleeve 15 and stretches when high, play stabilization, in case when heavier, screw rod 13 is being bent by the object of jack-up.

Claims (4)

1, a kind of electric-hand driven two-purpose jack, it is characterized in that: be provided with Connection Block [5] with the joining retarder of electrical motor [1] [2], Connection Block [5] is provided with tachogen [4], in Connection Block [5], axially establish an end by coupling mechanism links with the output shaft of retarder [2], the other end and hand gear [8] connect by connector worm screw [11], worm screw [11] is meshed with the worm gear [12] that is arranged on in the joining housing of base [9] [7], and worm gear [12] links by connector and the lifting mechanism that is provided with stable disk [18].

2, according to the described electric-hand driven two-purpose jack of claim 1, it is characterized in that the said worm screw [11] and the joining coupling mechanism of output shaft of retarder [2] are: adapter sleeve [3] is arranged in worm screw [11] outer setting, be provided with output shaft and the joining jack linking bond of worm screw [11] [6] with retarder [2] in adapter sleeve [3], jack linking bond [6] is provided with the jump ring [10] with adapter sleeve [3] overlap joint; Said lifting mechanism is: be outside equipped with and the joining swivel nut of jacking sleeve [15] [17] with the joining screw rod of worm gear [12] [13], outside jacking sleeve [15], axially and between the housing [7] be provided with feather key [16], be provided with loading plate [14] in the upper end of jacking sleeve [15], be provided with stable disk [18] in the bottom of screw rod [13]; Being shaped as of said stable disk [18]: the center at the external shape tabular body identical with lower geometry in the housing [7] processes or is manufactured with centre hole.

3, according to the described electric-hand driven two-purpose jack of claim 2, it is characterized in that: said jack linking bond [6] be shaped as four prisms cylinder, radially process or be manufactured with screw in the center of four prisms cylinder.

4. according to the described electric-hand driven two-purpose jack of claim 2, it is characterized in that: process or be manufactured with jack linking bond mounting hole on the jacket wall of said adapter sleeve [3].

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