CN209161355U - A kind of truck crane hoisting speed reducer - Google Patents

Abstract

The utility model relates to reducer technology field more particularly to a kind of truck crane hoisting speed reducers.The technical problems to be solved in the utility model is that the braking effect of existing hoisting speed reducer brake gear is bad.In order to solve the above-mentioned technical problem, the utility model provides a kind of truck crane hoisting speed reducer, including pedestal, it is fixed by positioning device at the top of pedestal and connects organism, card and fixed device are provided on the left of body, positioning device includes the starting stave and the second riser for being welded on base top, and starting stave is located at the left side of the second riser, the right side of starting stave is fixedly connected with plectane by screw, is welded with connecting column on the right side of plectane.The truck crane hoisting speed reducer can be fixed body using card and fixed device, body is fixed in the way of card sum, the problem of the case where effect is more preferable, abrasion is smaller, is less prone to brake failure, therefore the speed reducer braking effect is more preferable, is hardly damaged driving motor.

Description

A kind of truck crane hoisting speed reducer

Technical field

The utility model relates to reducer technology field, specially a kind of truck crane hoisting speed reducer.

Background technique

A most important structure is exactly hoisting speed reducer in truck crane, which is main knot when lifting by crane object Structure.

Article needs to move article position after lifting, and hoisting speed reducer not only will receive in the process of moving The gravity of article, also suffer from object it is mobile when generate pull power, the driving motor stress in hoisting speed reducer can be made in this way Motor damages that are larger, being easy to cause in hoisting speed reducer, therefore hoisting speed reducer all can be arranged a brake in inside and fill It sets, when driving motor stops working, it can be fixed using brake gear, so that power be made to be not transferred to driving motor Output shaft on, avoid driving motor from damaging；Hoisting speed reducer used at present is all that it is fixed using frictional force, Principle is similar to automobile braking device, and brake gear is arranged in the inside of hoisting speed reducer, the powder generated when braking in this way End can remain in internal body, and the presence of dust will affect the effect of brake, power is caused still to be transmitted on motor, influence The service life of motor；And frictional force brake is all to use brake block, and brake block has abrasion, is stopped if infrequently checked The case where service condition of vehicle piece, very big probability will appear brake failure, so as to cause the larger damage of motor stress.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of truck crane hoisting speed reducer, solves existing The bad problem of the braking effect of hoisting speed reducer brake gear.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of truck crane hoisting speed reducer, including Pedestal is fixed by positioning device at the top of the pedestal and connects organism, even if the existing hoisting speed reducer of body, the machine Card and fixed device are provided on the left of body.

The positioning device includes the starting stave and the second riser for being welded on base top, and the starting stave is located at The right side in the left side of the second riser, the starting stave is fixedly connected with plectane, the right side welding of the plectane by screw There is connecting column, the right end of the connecting column is connected by the lower rotation of bearing block and body, and the input shaft of the body runs through The inner cavity of second riser and the right side for extending to the second riser, using starting stave and the second riser by the machine of hoisting speed reducer Body is fixed at the top of the base.

The card and fixed device include being welded on strip and the fixation being welded on the left of organism bottom outside connecting column Ring, the inner wall of the fixed ring offer inclined-plane tooth socket, and the external activity of the connecting column is socketed with fixing sleeve, the fixing sleeve Inner wall offer card slot compatible with strip, the outside of the fixing sleeve is provided with positioning ring by micro-adjusting device, institute The outer wall for stating positioning ring is welded with inclined-plane corresponding with inclined-plane tooth socket rack gear, is welded with electric expansion on the left of the positioning ring Bar is welded on the right side of plectane, when hoisting speed reducer stops working, electric telescopic rod on the left of the electric telescopic rod It can extend, move positioning ring to the right, positioning ring is made to be moved to the inside of fixed ring, due to being provided with strip on connecting column, The inside of fixing sleeve offers card slot compatible with strip, therefore fixing sleeve can only carry out left and right shifting in the outside of connecting column It is dynamic, it rotate fixing sleeve will not on connecting column, and because the inner wall of fixed ring offers inclined-plane tooth socket, the external weldering of positioning ring It is connected to inclined-plane rack gear, fixed ring can be made not can rotate fixed ring using positioning ring in this way, thus to the machine of hoisting speed reducer Body is fixed.

Preferably, the inside of the pedestal is opened up there are two fixation hole, and two fixation holes are symmetrically distributed in pedestal Two sides are facilitated using two fixation holes and fix pedestal in place, also facilitated and remove pedestal.

Preferably, the position that the body input shaft is contacted with the second riser is provided with Limit Bearing, the Limit Bearing It is connected to the inside of the second riser, further body is fixed using Limit Bearing, improves the support force that body is subject to.

Preferably, the plectane is internally provided with four screw holes, using four screw holes meeting is fixed to plectane It is more convenient.

Preferably, the micro-adjusting device includes being provided with four grooves of positioning ring inner wall and being welded on outside fixing sleeve Four convex blocks of wall, four grooves are corresponding with the position of four convex blocks, and making between fixing sleeve and positioning ring in this way can be with Subtle rotate, and so as to adjust the position of positioning ring ramp rack gear, allows inclined-plane rack gear quickly and inclined-plane Tooth socket is connected together.

Preferably, the micro-adjusting device includes four friction plates for being welded on positioning ring inner wall, and the inner wall of friction plate It fits with the outer wall of fixing sleeve, slows down the speed rotated between fixing sleeve and positioning ring using friction plate.

(3) beneficial effect

The utility model provides a kind of truck crane hoisting speed reducer.Have it is following the utility model has the advantages that

(1), the truck crane hoisting speed reducer can be fixed body using card and fixed device, and from outside Body is fixed, body can be reduced in this way and avoid body input shaft from damaging the power applied at input shaft, and utilize card The problem of the case where body is fixed in the mode of sum, and effect is more preferable, abrasion is smaller, is less prone to brake failure, therefore should Speed reducer braking effect is more preferable, reduces the stress of driving motor, is hardly damaged driving motor.

(2), the truck crane hoisting speed reducer, using micro-adjusting device, when positioning ring moves to the right, positioning ring can To carry out rotation by a small margin, the position of inclined-plane tooth socket and inclined-plane rack gear is adjusted, allows whole inclined-plane tooth socket and inclined-plane rack gear very Quickly mesh together, improves the reaction speed of brake；The friction plate of setting can reduce the stress of groove and convex block, reduce Groove and the probability of convex block damage.

Detailed description of the invention

Fig. 1 is the positive structure diagram of the utility model；

Fig. 2 is partial enlargement diagram at the A in the utility model Fig. 1；

Fig. 3 is the side structure schematic view of plectane in the utility model Fig. 2；

Fig. 4 is the side structure schematic view of fixing sleeve in the utility model Fig. 2；

Fig. 5 is the side structure schematic view of fixed ring in the utility model Fig. 2.

In figure: 1 pedestal, 2 positioning devices, 21 starting staves, 22 second risers, 23 plectanes, 24 connecting columns, 25 bearing blocks, 26 Limit Bearings, 27 screw holes, 3 bodies, 4 fixation holes, 5 cards and fixed device, 51 strips, 52 fixed rings, 53 inclined-plane tooth sockets, 54 Fixing sleeve, 55 card slots, 56 positioning rings, 57 inclined-plane rack gears, 58 electric telescopic rods, 6 micro-adjusting devices, 61 grooves, 62 convex blocks, 63 are rubbed Pad.

Specific embodiment

As shown in Figs. 1-5, the utility model provides a kind of technical solution: a kind of truck crane hoisting speed reducer, including bottom Seat 1, the inside of pedestal 1 are opened up there are two fixation hole 4, and two fixation holes 4 are symmetrically distributed in the two sides of pedestal 1, solid using two Determine hole 4 to facilitate the fixation of pedestal 1 in place, also facilitate and remove pedestal 1, the top of pedestal 1 is solid by positioning device 2 Surely organism 3 is connected, even if the existing hoisting speed reducer of body 3, the left side of body 3 is provided with card and fixed device 5.

Positioning device 2 includes that the starting stave 21 for being welded on 1 top of pedestal and the second riser 22, starting stave 21 are located at The right side in the left side of the second riser 22, starting stave 21 is fixedly connected with plectane 23, the inside setting of plectane 23 by screw There are four screw holes 27, and plectane 23 is fixed using four screw holes 27 can be more convenient, and the right side of plectane 23 is welded with Connecting column 24, the right end of connecting column 24 are connect by bearing block 25 with the lower rotation of body 3, and the input shaft of body 3 runs through the The inner cavity of two risers 22 and the right side for extending to the second riser 22, the position setting that 3 input shaft of body is contacted with the second riser 22 There is Limit Bearing 26, Limit Bearing 26 is connected to the inside of the second riser 22, further carries out to body 3 using Limit Bearing 26 It is fixed, the support force that body 3 is subject to is improved, is consolidated the body 3 of hoisting speed reducer using starting stave 21 and the second riser 22 It is scheduled on the top of pedestal 1.

Card and fixed device 5 include being welded on 24 outside strip 51 of connecting column and being welded on consolidating for 3 bottom left of body Determine ring 52, the inner wall of fixed ring 52 offers inclined-plane tooth socket 53, and the external activity of connecting column 24 is socketed with fixing sleeve 54, fixing sleeve 54 inner wall offers card slot 55 compatible with strip 51, and the outside of fixing sleeve 54 is provided with positioning by micro-adjusting device 6 Ring 56, the outer wall of positioning ring 56 are welded with inclined-plane corresponding with inclined-plane tooth socket 53 rack gear 57, and the left side of positioning ring 56 is welded with Electric telescopic rod 58, the left side of electric telescopic rod 58 are welded on the right side of plectane 23, when hoisting speed reducer stops working, Electric telescopic rod 58 can extend, and move positioning ring 56 to the right, and positioning ring 56 is made to be moved to the inside of fixed ring 52, due to even It connects and is provided with strip 51 on column 24, the inside of fixing sleeve 54 offers card slot 55 compatible with strip 51, therefore fixing sleeve 54 It can only be moved left and right in the outside of connecting column 24, rotate fixing sleeve 54 will not on connecting column 24, and because fixed ring 52 inner wall offers inclined-plane tooth socket 53, and the outside weldings of positioning ring 56 have an inclined-plane rack gear 57, in this way can be with using positioning ring 56 It to fixed ring 52, can rotate fixed ring 52 not, so that the body 3 to hoisting speed reducer is fixed, micro-adjusting device 6 includes Be provided with four grooves 61 of 56 inner wall of positioning ring and be welded on four convex blocks 62 of 54 outer wall of fixing sleeve, four grooves 61 with The position of four convex blocks 62 is corresponding, make in this way can be subtle between fixing sleeve 54 and positioning ring 56 rotate, so as to To adjust the position of 56 ramp rack gear 57 of positioning ring, inclined-plane rack gear 57 is allow quickly to be connected to one with inclined-plane tooth socket 53 It rises, four friction plates 63 of the micro-adjusting device 6 including being welded on 56 inner wall of positioning ring, and the inner wall of friction plate 63 and fixing sleeve 54 Outer wall fit, slow down the speed rotated between fixing sleeve 54 and positioning ring 56 using friction plate 63.

Working principle: when due to hoisting speed reducer work, driving motor drives the input shaft of body 3 to be rotated, then Slowed down by gear set, makes the rotation of the shell progress of body 3 at a slow speed；When the driving motor on hoisting speed reducer works When, electric telescopic rod 58 can be made to shrink, positioning ring 56 is moved to the left, separate positioning ring 56 with fixed ring 52, to make Driving motor can smoothly drive 3 shell of body to be rotated very much；When the driving motor on hoisting speed reducer stops working, Electric telescopic rod 58 can be made to extend, keep positioning ring 56 dynamic to side moves, block positioning ring 56 and fixed ring 52 and together, thus Fix body 3.

Claims (6)

1. a kind of truck crane hoisting speed reducer, including pedestal (1), it is characterised in that: pass through positioning at the top of the pedestal (1) Device (2) is fixedly connected organism (3), and card is provided on the left of the body (3) and fixes device (5)；

The positioning device (2) includes being welded on starting stave (21) and the second riser (22) at the top of pedestal (1), and described the One riser (21) is located at the left side of the second riser (22), and the right side of the starting stave (21) is fixedly connected with circle by screw Plate (23) is welded with connecting column (24) on the right side of the plectane (23), and the right end of the connecting column (24) passes through bearing block (25) It is connect with the lower rotation of body (3), the input shaft of the body (3) runs through the inner cavity of the second riser (22) and extends to second The right side of riser (22)；

The card and fixed device (5) include being welded on the external strip (51) of connecting column (24) and being welded on body (3) bottom The inner wall of the fixed ring (52) in left side, the fixed ring (52) offers inclined-plane tooth socket (53), the outside of the connecting column (24) Movable sleeve is connected to fixing sleeve (54), and the inner wall of the fixing sleeve (54) offers and strip (51) compatible card slot (55), institute The outside for stating fixing sleeve (54) is provided with positioning ring (56) by micro-adjusting device (6), the outer wall welding of the positioning ring (56) There is inclined-plane corresponding with inclined-plane tooth socket (53) rack gear (57), is welded with electric telescopic rod on the left of the positioning ring (56) (58), the right side of plectane (23) is welded on the left of the electric telescopic rod (58).

2. a kind of truck crane hoisting speed reducer according to claim 1, it is characterised in that: the inside of the pedestal (1) It opens up there are two fixation hole (4), two fixation holes (4) are symmetrically distributed in the two sides of pedestal (1).

3. a kind of truck crane hoisting speed reducer according to claim 1, it is characterised in that: body (3) input shaft The position contacted with the second riser (22) is provided with Limit Bearing (26), and the Limit Bearing (26) is connected to the second riser (22) Inside.

4. a kind of truck crane hoisting speed reducer according to claim 1, it is characterised in that: the inside of the plectane (23) There are four screw hole (27) for setting.

5. a kind of truck crane hoisting speed reducer according to claim 1, it is characterised in that: the micro-adjusting device (6) Including being provided with four grooves (61) of positioning ring (56) inner wall and being welded on four convex blocks (62) of fixing sleeve (54) outer wall, Four grooves (61) are corresponding with the position of four convex blocks (62).

6. a kind of truck crane hoisting speed reducer according to claim 5, it is characterised in that: the micro-adjusting device (6) Four friction plates (63) including being welded on positioning ring (56) inner wall, and the outer wall of the inner wall of friction plate (63) and fixing sleeve (54) It fits.