CN2771285Y

CN2771285Y - Concrete road paving-levelling machine lifting mechanism

Info

Publication number: CN2771285Y
Application number: CN 200520070179
Authority: CN
Inventors: 黎宁生
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-24
Filing date: 2005-03-24
Publication date: 2006-04-12
Anticipated expiration: 2015-03-24

Abstract

The utility model relates to a lifting mechanism for a concrete pavement paving flattening machine, which comprises a bearing support seat (1), a lifting nut (2), a lifting screw rod (3) and a lifting screw rod bearing seat (4). The utility model is characterized in that the utility model is also provided with a lifting movable plate (5) and a lifting fixed plate (6), wherein a guide groove structure is arranged between the lifting movable plate (5) and the lifting fixed plate (6), and the lifting movable plate (5) is connected with the lifting fixed plate (6) in a slide match mode by the guide groove structure. The bearing support seat (1) is fixed on the lifting movable plate (5), and the lifting nut (2) is connected with the lifting movable plate (5) to form a linkage structure. The lifting screw rod (3) is arranged above the lifting movable plate (5) and the lifting fixed plate (6) through the lifting screw rod bearing seat (4). The utility model is provided with the guide groove lifting mechanism, so the relative position between the lifting movable plate (5) and the lifting nut (2) is fixed and unchanged, and the lifting displacement can be arranged according to needs as long as the lifting screw rod (3), the lifting nut (2) and the guide groove have enough lengths.

Description

A kind of rigid pavement spreading smoother elevating mechanism

Technical field: the utility model relates to a kind of rigid pavement spreading smoother elevating mechanism.

Background technology: the rigid pavement spreading smoother is stacked height in order to adapt to different concrete, generally all be provided with elevating mechanism, the height of carrying slurry axle and screw conveyor shaft is adjusted, to reach suitable height, rigid pavement spreading smoother lifting function is worked smoothly efficiently, as applying on August 15th, 2003 by the applicant together, the patent No. is 03277824.4, name is called in the utility model patent of " rigid pavement spreading smoother " and discloses a kind of lifting gear, this elevating mechanism comprises bearing spider, the bearing spider base plate, lifting nut, lifting screw, the lifting screw bearing support, the described slurry axle of carrying is arranged on the bearing spider, bearing spider is installed on the bearing spider base plate, one end of bearing spider base plate is arranged on the bearing spider, bearing spider is installed on the bearing spider base plate, one end of bearing spider base plate is provided with the back rotating shaft and frame flexibly connects, the other end is provided with front rotary shaft and lifting nut flexibly connects, lifting screw is arranged on the frame by the lifting screw bearing support, and is spirally connected with the lifting nut activity.Owing to carry the slurry axle or/and screw conveyor shaft is provided with elevating mechanism, they can suitably be adjusted according to concrete height, generally to be higher than walking axle and leveling axle, thereby have the leveling effective, the efficient height, adaptable advantage, but this elevating mechanism also exists some defectives, because this mechanism is the end by the bearing spider base plate back rotating shaft and frame flexible connection are set, elevating mechanism bearing spider when doing lifting action is to do movement in a curve around the back rotating shaft, have displacement in the horizontal direction with lifting screw, heave amplitude is big more, displacement is also just big more, will block to certain degree, and this displacement is limited, so the amplitude of lifting is restricted.

The utility model content: the purpose of this utility model is: provide a kind of heave amplitude bigger a kind of rigid pavement spreading smoother elevating mechanism for overcoming the deficiencies in the prior art.

The technical scheme that realizes above-mentioned purpose is as follows: a kind of rigid pavement spreading smoother elevating mechanism, comprise bearing spider, lifting nut, lifting screw and lifting screw bearing support, it is characterized in that: described elevating mechanism also is provided with and promotes portable plate and promote fixed head, promote portable plate and promote between the fixed head and be provided with guide barrel construction, promote portable plate and promote and pass through the guide barrel construction sliding connection between the fixed head, described bearing spider is fixedly mounted on and promotes on the portable plate, lifting nut connects and composes interlock with promoting portable plate, and lifting screw is installed in the top that promotes portable plate and promote fixed head by the lifting screw bearing support.

Each end at roll shaft during use all is provided with elevating mechanism, the two ends of roll shaft are installed on the bearing spider, promoting fixed head is fixed on the underframe of rigid pavement spreading smoother, guide groove is perpendicular to the ground, compared with prior art, the beneficial effects of the utility model are: owing to be provided with by promoting the guide groove elevating mechanism that portable plate and lifting fixed head are formed, relative position immobilizes between lifting portable plate, the lifting nut, as long as lifting screw, lifting nut and guide groove length are enough, the displacement of lifting can be set as required.

The utility model is described in further detail below in conjunction with embodiment.

Description of drawings:

Accompanying drawing 1 is the utility model embodiment overall structure schematic diagram;

Accompanying drawing 2 is that accompanying drawing 1A-A is to the structure sectional view;

Accompanying drawing 3 is accompanying drawing 1 vertical view.

Specific embodiment: as Fig. 1, shown in 2, rigid pavement spreading smoother elevating mechanism, comprise bearing spider 1, lifting nut 2, lifting screw 3 and lifting screw bearing support 4, elevating mechanism also is provided with and promotes portable plate 5 and promote fixed head 6, promote portable plate 5 and promote between the fixed head 6 and be provided with guide barrel construction, promote portable plate 5 and promote and pass through the guide barrel construction sliding connection between the fixed head 6, guide barrel construction specifically can be to be " " by a base plate and a pair cross-section, the press strip of " " shape constitutes, press strip is fixed on the both sides formation guide groove of base plate with side plane with the screw symmetry, promoting portable plate 5 is slidingly matched with guide groove, be slidably disposed between two press strips, bearing spider 1 smooth being fixedly mounted on promotes on the portable plate 5, bearing fixing is installed in the bearing spider 1, lifting nut 2 connects and composes interlock with promoting portable plate 5, and lifting screw 3 is installed in the top that promotes portable plate 5 and promote fixed head 6 by lifting screw bearing support 4; Also can be provided with two groups in the elevating mechanism promotes portable plate 5 and promotes fixed head 6 and bearing support, two groups promote fixed head 6 parallel relative fixed settings, two promote between the portable plate 5 by crossbeam 7 connection interlocks, crossbeam 7, can select channel-section steel for use, crossbeam 7 is provided with the door-hinge pit 8 that a pair of center has through hole, 8 of door-hinge pits are provided with door-hinge pit axle 9 rotationally, door-hinge pit axle 9 is parallel with crossbeam 7 axis, lifting nut 2 is fixed on and makes lifting nut 2 and lifting portable plate 5 connect and compose interlock on the door-hinge pit axle 9, lifting screw bearing support 4 is fixedly mounted on the mounting baseplate 10 of crossbeam 7 tops, and be in the vertical direction of lifting nut 2, lifting screw 3 lower ends perpendicular to the ground are threaded with lifting nut 2, the upper end is provided with handwheel 12, be provided with locking nut 11 between handwheel and the lifting screw bearing support 4, the interior spiral shell of lifting nut 2 is long more, and the displacement of lifting is just big more.

Shown in Fig. 1～3, when elevating mechanism is used on the spreading smoother of rigid pavement, promoting fixed head 6 is fixed on the underframe 13 of rigid pavement spreading smoother, guide groove is perpendicular to the ground, guide groove face and roll shaft axis normal, symmetry is installed on the underframe 13 of spreading smoother both sides, soil surface with fixed attention, and the two ends of roll shaft 14 respectively are installed on the bearing spider 1 of both sides elevating mechanism.

Claims

1, a kind of rigid pavement spreading smoother elevating mechanism, comprise bearing spider (1), lifting nut (2), lifting screw (3) and lifting screw bearing support (4), it is characterized in that: described elevating mechanism also is provided with and promotes portable plate (5) and promote fixed head (6), promote portable plate (5) and promote between the fixed head (6) and be provided with guide barrel construction, promote portable plate (5) and promote and pass through the guide barrel construction sliding connection between the fixed head (6), described bearing spider (1) is fixedly mounted on and promotes on the portable plate (5), lifting nut (2) connects and composes interlock with promoting portable plate (5), and lifting screw (3) is installed in the top that promotes portable plate (5) and promote fixed head (6) by lifting screw bearing support (4).

2, rigid pavement according to claim 1 spreading smoother elevating mechanism, it is characterized in that: be provided with two groups in the spreading smoother elevating mechanism of described rigid pavement and promote portable plate (5) and promote fixed head (6) and bearing spider (1), two groups promote the parallel relative fixed setting of fixed head (6), two promote between the portable plate (5) by crossbeam (7) connection interlock, described crossbeam (7) is provided with the door-hinge pit (8) that a pair of center has through hole, be provided with door-hinge pit axle (9) between door-hinge pit (8) rotationally, lifting nut (2) is fixed on the door-hinge pit axle (9).

3, rigid pavement according to claim 1 and 2 spreading smoother elevating mechanism, it is characterized in that: described lifting fixed head (6) is the press strip formation of " ", " " shape by a base plate and a pair cross-section, described press strip symmetry is fixed on the both sides formation guide groove of base plate with side plane, promotes portable plate (5) and is slidably disposed between two press strips.