CN200958023Y

CN200958023Y - Electric circular-chain elevator with protecting-chain limitor

Info

Publication number: CN200958023Y
Application number: CN 200620108548
Authority: CN
Inventors: 姚乐安
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-02
Filing date: 2006-10-02
Publication date: 2007-10-10
Anticipated expiration: 2016-10-02

Abstract

The utility model relates to a loop chain dynamoelectric elevator with a chain guard limit device, which is comprised by an electric motor, a bottom hook, a top hook, a hoisting chain, a bottom hook housing, a left wallboard, a right wallboard, a cover shell, and a guide pulley location rack and guide pulley are between the left wallboard and right wallboard, the loop chain is arranged between the left wallboard and right wallboard, a limit spring is covered in hoisting chain of bottom hook, and below the electric motor, a limit switch and elasticity sheet, which contacts with contact head of limit switch, a stopper support racket that is used for supporting the stopper is fixed below the left wallboard, the two ends of returning spring is respectively fixed on the stopper support racket and stopper. The utility model makes the hoisting chain run according to a certain locus, and can prevent components work s from not being influence due to falling sundries, and has the limit function.

Description

Has the loop chain motor hoist that protects the chain inhibiting device

One, technical field

The utility model relates to a kind of elevator machinery, refers in particular to a kind of motor hoist.

Two, background technology

The chain block speed that tradition is used is slow, and the steel-wire rope type electric block suspension of need driving a vehicle, and manufacturing cost is higher.That the applicant once designed was a kind of " Electric Chain Blocks fast " (application number: 200620100145.X), it comprises motor, following suspension hook, hook, hoisting chain, pleasure boat, left side wallboard, right wallboard, case, chain hoist wheel and guide wheel between left side wallboard and the right wallboard, the motor projecting shaft passes right wallboard successively, chain hoist wheel, left side wallboard, bearing, capacity eccentric bearing, the chain hoist wheel set of connectors, adaptor union overlaps big bearing and flange, some bearing pins are set on the adaptor union, the pin sleeve guide, guide cooperates with two Cycloidal Wheel, between two Cycloidal Wheel spacer ring is arranged, Cycloidal Wheel cover pin wheel housing, the engagement of pin tooth and Cycloidal Wheel is set in the pin wheel housing, and cover plate engages with flange.In electric machine support, be meshed with the deboost axle transmission gear, the deboost axle of deboost axle transmission gear coaxial drive axis above the motor axis, this deboost axle drives the speed reduction gearing in the deceleration box, the chain wheel drive gear of the output gear driving axis of speed reduction gearing below the motor axis, chain wheel drive gear coaxial drive chain hoist wheel rotates.It is easy to use, and hoisting speed is fast, and volume is little, and manufacturing cost is lower.Prior art comprises that the applicant designs above-mentioned loop chain motor hoist (Electric Chain Blocks fast), because big space is arranged between left wallboard and the right wallboard, often be offset during the hoisting chain motion, and foreign material fall into the parts work that influences between left wallboard and the right wallboard easily from the space, and this is a defective one; Defective two is: suspension hook rises when arriving the rising limit instantly, needs manual control, not so can transition promote, in case find to turn off motor again, motor suffers damage.

Three. the utility model content

The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, a kind of loop chain motor hoist that protects the chain inhibiting device that has is provided, it makes hoisting chain according to certain orbiting motion, can prevent that foreign material from falling into the parts work between left wallboard of influence and the right wallboard, has limit function.

For achieving the above object, the solution that the utility model is taked is: a kind of have a loop chain motor hoist that protects the chain inhibiting device, it comprises motor, following suspension hook, hook, hoisting chain, following hook housing, left side wallboard, right wallboard, case, guide wheel locating rack and guide wheel between left side wallboard and the right wallboard, between left side wallboard and the right wallboard chain cover is housed, be with limit spring in the hoisting chain on following hook housing, dress limit switch and shell fragment below the motor, shell fragment contacts with the contact of limit switch, fixed limit spare bracing frame under the right wallboard, locating part bracing frame support limit part, retracing spring one end is fixed in the locating part bracing frame, the other end is fixed in locating part.

The utility model is owing to be equipped with chain cover between left wallboard and the right wallboard, it makes hoisting chain promptly move in the space that chain cover limits according to certain orbiting motion and is difficult for skew, and prevents that foreign material from falling into the parts work between left wallboard of influence and the right wallboard.It also has limit function, spacing principle of work is summarized as follows: suspension hook rises to certain position instantly, limit spring is backed down locating part, the spacing shell fragment that backs down, shell fragment is pressed the contact of limit switch, and the loop of rising is disconnected, hook stops to rise, when restarting motor, following suspension hook descends, and retracing spring resets locating part.

Four, description of drawings

Fig. 1 is the back view with the loop chain motor hoist that protects the chain inhibiting device.

Fig. 2 is the lateral plan after loop chain motor hoist that the chain inhibiting device is protected in shown in Figure 1 having is removed some parts.

Fig. 3 is the cutaway drawing of facing of locating part.

Fig. 4 is the lateral plan of locating part.

Fig. 5 is that cutaway drawing is looked on the right side of chain cover.

Fig. 6 is the front view of chain cover.

Fig. 7 is the left view of chain cover.

Fig. 8 is the B-B section-drawing among Fig. 6.

Fig. 9 is the birds-eye view of chain cover.

Among the figure: 1, hook, 2, motor, 3, case, 4, right wallboard, 5, left wallboard, 6, chain cover, 7, limit switch, 8, shell fragment, 9, retracing spring, 10, the locating part bracing frame, 11, locating part, 12, limit spring, 13, hoisting chain, 14, following hook housing, 15, suspension hook down, 16, the chain cover strut bar, 17, guide wheel locating rack, 18, guide wheel, 61, the track groove, 111, handle, 112, aperture, 113, keyhole, 114, ring partially.

Five, the specific embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Referring to Fig. 1 and Fig. 2, a kind of have a loop chain motor hoist that protects the chain inhibiting device, it comprises motor 2, following suspension hook 15, hook 1, hoisting chain 13, following hook housing 14, left side wallboard 5, right wallboard 4, case 3, guide wheel locating rack 17 and guide wheel 18 between left side wallboard 5 and the right wallboard 4, between left side wallboard 5 and the right wallboard 4 chain cover 6 is housed, be with limit spring 12 in the hoisting chain 13 on following hook housing 14, dress limit switch 7 and shell fragment 8 below the motor 2, shell fragment 8 contacts with the contact of limit switch 7,4 times fixed limit spare bracing frames 10 of right wallboard, locating part bracing frame 10 support limit parts 11, retracing spring 9 one ends are fixed in locating part bracing frame 10, the other end is fixed in locating part 11.

Referring to Fig. 1, retracing spring 9 has two.

Referring to Fig. 2, chain cover 6 is supported by some chain cover strut bars 16.Referring to Fig. 1 and Fig. 3, be handle 111 on the locating part 11, down be ring 114 partially to have two apertures 112 that hook retracing spring 9 in the handle 111, handle 111 excessively has the keyhole 113 that is bolted at locating part bracing frame 10 in the place with ring 114 partially.Referring to Fig. 4, encircling 114 angle of deviation partially is 20 °.Referring to Fig. 2, Fig. 8 and Fig. 9, be provided with the track groove 61 that hoisting chain 13 moves therein in the chain cover 6.

Claims

1, a kind of have a loop chain motor hoist that protects the chain inhibiting device, it comprises motor (2), following suspension hook (15), hook (1), hoisting chain (13), following hook housing (14), left side wallboard (5), right wallboard (4), case (3), guide wheel locating rack (17) and guide wheel (18) between left side wallboard (5) and the right wallboard (4), it is characterized in that: between left wallboard (5) and the right wallboard (4) chain cover (6) is housed, be with limit spring (12) in the hoisting chain (13) on following hook housing (14), dress limit switch (7) and shell fragment (8) below the motor (2), shell fragment (8) contacts with the contact of limit switch (7), right wallboard (4) is fixed limit spare bracing frame (10) down, locating part bracing frame (10) support limit part (11), retracing spring (9) one ends are fixed in locating part bracing frame (10), the other end is fixed in locating part (11).

2, according to claim 1 have a loop chain motor hoist that protects the chain inhibiting device, and it is characterized in that: described retracing spring (9) has two.

3, according to claim 1 have a loop chain motor hoist that protects the chain inhibiting device, and it is characterized in that: described chain cover (6) is supported by some chain cover strut bars (16).

4, according to claim 1 have a loop chain motor hoist that protects the chain inhibiting device, it is characterized in that: described locating part (11) upward is handle (111), following to encircling (114) partially, have two apertures (112) that hook retracing spring (9) in the handle (111), handle (111) excessively has the keyhole (113) that is bolted at locating part bracing frame (10) in the place with inclined to one side ring (114).

5, according to claim 4 have a loop chain motor hoist that protects the chain inhibiting device, and it is characterized in that: the angle of deviation of described inclined to one side ring (114) is 20 °.

6, according to claim 1 have a loop chain motor hoist that protects the chain inhibiting device, it is characterized in that: be provided with the track groove (61) that hoisting chain (13) moves therein in the described chain cover (6).