CN111392330A

CN111392330A - Conveyer belt chain type trolley travelling mechanism

Info

Publication number: CN111392330A
Application number: CN202010157259.2A
Authority: CN
Inventors: 张则强; 张裕; 刘俊琦; 陈凤; 许培玉; 管超; 曾艳清; 程文明
Original assignee: Southwest Jiaotong University
Current assignee: CHENGDU WESTERN TAILI INTELLIGENT EQUIPMENT Co.,Ltd.
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-07-10
Anticipated expiration: 2040-03-09
Also published as: CN111392330B

Abstract

The invention discloses a conveying belt chain type trolley travelling mechanism which comprises a trolley, a fixing plate, a cart, a speed reducer, an engine, a hoisting beam, a conveying belt, a conveying plate, a chain, a connecting hinge, a latch, a bearing wheel, a coupling, a driving chain wheel, a power device consisting of the speed reducer and the engine, wherein the power device is fixed at one end of the conveying belt, the driving chain wheel drives the chain to rotate, the conveying plate connected with the chain through the connecting hinge on the conveying belt and the chain rotate together, and therefore the trolley connected with the conveying plate through a bolt is driven to move. When the trolley works, the weight of the trolley and a heavy object to be lifted is dispersed on the bearing wheels which are sequentially and closely arranged in the conveying belt, so that the friction during movement is reduced, the weight borne by a single bearing wheel is reduced, the fatigue and the damage caused by long-time bearing of a bearing component are avoided, the latch on the conveying plate is matched with the groove on the bearing wheel, the movement track of the trolley is effectively limited, and the precision of hoisting operation is ensured.

Description

Conveyer belt chain type trolley travelling mechanism

Technical Field

The invention relates to the technical field of cranes, in particular to a conveying belt chain type crane trolley travelling mechanism.

Background

The trolley is a main hoisting structure laid on a bridge frame of a bridge crane, can transfer and transport materials below the bridge frame, is not obstructed by ground equipment and terrain, and is widely arranged and applied to plants and workshops.

Disclosure of Invention

Aiming at various problems of the wheel type travelling mechanism of the existing crane trolley in use, the invention provides a crane trolley conveying belt chain type travelling mechanism which can solve the problems of related defects.

The main technical scheme of the invention is that the wheel type traveling mechanism of the crane trolley is completely replaced by a conveyor belt chain structure formed by a conveyor belt, a conveying plate and a chain, the wheel structure of the crane trolley is cancelled and is changed into a bolt connecting structure connected with the conveying plate, and the bearing points and the moving mechanism of the crane trolley are changed into the conveyor belt from wheels and a traveling rail.

The conveyer belt chain type trolley travelling mechanism mainly comprises a trolley, a fixed plate, a trolley, a speed reducer, an engine, a hoisting beam, a conveyer belt, a conveying plate, a chain, a connecting hinge, a latch, a bearing wheel, a coupling and a driving chain wheel, wherein the trolley is respectively provided with two groups of hoisting beams and two groups of conveyer belts, the hoisting beams and the conveyer belts respectively cross two ends of the trolley in parallel, and the two groups of hoisting beams are positioned between the two groups of conveyer belts and respectively abut against the conveyer belt closest to the hoisting beams; the trolley is arranged on two groups of parallel conveying belts, a fixed plate is arranged at the bottom of the trolley, conveying plates which are sequentially arranged are arranged on the surfaces of the conveying belts, and the fixed plate is connected with part of the conveying plates through bolts; a pair of driving chain wheels are respectively arranged at two ends of the conveying belt in the direction parallel to the lifting beam, each pair of driving chain wheels are symmetrically distributed at two sides of the conveying plate, a movable shaft which penetrates through the centers of the two driving chain wheels and is connected with the lifting beam is arranged between each pair of driving chain wheels, and each pair of driving chain wheels is connected with the movable shaft through a coupling; two groups of couplers at the same end of the two groups of conveying belts are also respectively connected with two groups of power devices consisting of the speed reducer and the engine along the direction parallel to the hoisting beam; chains of parallel hoisting beams are hung on the two driving chain wheels on the same side of the conveying plate on the conveying belt, and the chains of the parallel hoisting beams are hung on the driving chain wheels on the two sides of the conveying plate and are respectively connected with the conveying plate through respective connecting hinges; the bearing wheels are arranged inside the conveying belt side by side, between the two pairs of driving chain wheels, the bearing wheels are in contact with the conveying plate.

Further, the diameter of the coupler is smaller than that of the bearing wheel.

Furthermore, the rotating shaft of the bearing wheel is fixed on the hoisting beam, and the bearing wheel can only rotate along the rotating shaft.

Furthermore, the contact surface of the conveying plate and the bearing wheel is provided with clamping teeth parallel to the hoisting beam, and the middle part of the bearing wheel is provided with a groove meshed with the clamping teeth.

The invention has the advantages that:

1. the chain type walking mechanism of the conveying belt adopted by the invention not only reduces the friction force when the trolley moves, but also disperses the weight of the trolley and the lifting heavy object to each bearing wheel, thereby reducing the abrasion.

2. The conveying belt chain type travelling mechanism adopts a transmission structure of the chain wheel and the chain, and has better braking effect compared with the inertia displacement generated during braking of the traditional rail-mounted travelling mechanism.

3. According to the invention, the double conveyor belts are used as the supports of the trolley, so that the bearing capacity is uniformly dispersed, the slipping phenomenon is avoided, and the balance and stability of the trolley structure are ensured.

4. The invention limits the linear motion of the trolley in a mode of matching the latch on the conveying plate with the groove on the bearing wheel, and compared with a running rail type structure which limits the position through the wheels and the rails, the invention has more accurate limit, better anti-vibration and anti-deviation capability and can effectively ensure the accurate degree of the motion of the lifting trolley.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the structure of the bearing wheel of the traveling mechanism of the present invention;

FIG. 4 is a schematic view of the drive sprocket configuration of the running gear of the present invention;

in the figure, 1, a crane trolley, 2 a fixing plate, 3 a cart, 41 a speed reducer, 42 an engine, 5 a crane beam, 6 a conveying belt, 61 a conveying plate, 62 a chain, 63 a connecting hinge, 64 latches, 7 bearing wheels, 8 couplings and 9 driving chain wheels.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.

Example (b):

referring to fig. 1 to 4, a cart 3 is respectively provided with two groups of lifting beams 5 and two groups of conveyer belts 6, the lifting beams 5 and the conveyer belts 6 respectively span two ends of the cart 3, the two groups of lifting beams 5 are positioned between the two groups of conveyer belts 6 and respectively abut against the conveyer belts 6 nearest to the lifting beams, a trolley 1 is arranged on the two groups of conveyer belts 6 parallel to each other, the bottom of the trolley 1 is provided with a fixed plate 2, a transmission plate 61 arranged on the surface of a part of the conveyer belts 6 is connected with the fixed plate 2 through bolts, the conveyer belts 6 are respectively provided with a pair of driving chain wheels 9 at two ends extending along the direction of the parallel lifting beams 5, each pair of driving chain wheels 9 are symmetrically distributed at two sides of the transmission plate 61, the lifting beams 5 are provided with movable shafts penetrating through the centers of each pair of driving chain wheels 9, each pair of driving chain wheels 9 are connected with the movable shafts through a coupling 8, wherein the two groups of couplings 8 at the The connecting structure is characterized in that chains 62 parallel to a lifting beam 5 are hung on two driving chain wheels 9 on the same side of a conveying plate 61 on the conveying belt 6, the chains 62 are hung on the driving chain wheels 9 on the two sides of the conveying plate 61 and are respectively connected with the conveying plate 61 through respective connecting hinges 63, bearing wheels 7 are arranged inside the conveying belt 6 side by side and are meshed with clamping teeth 64 on the conveying plate 61 through grooves, and rotating shafts of the bearing wheels 7 are fixed on the lifting beam 5.

In the embodiment, the bearing wheels 7 in the conveying belt 6 are sequentially arranged, and the bearing wheels 7 are installed on the lifting beam 5, so that the weight borne by the conveying belt 6 is uniformly dispersed on the bearing wheels 7, the point contact of the travelling rail type travelling mechanism is changed into the surface contact of the conveying belt type, stress points are dispersed, the condition that the weight is completely concentrated on only a plurality of pivots can not occur, and a certain wheel is damaged after being stressed for a long time, so that the lifting trolley inclines, and the lifting beam 5 can more stably support the lifting trolley.

Meanwhile, the moving mode of the trolley is changed from the sliding of the trolley wheels on the lifting beam 5 into the mode that the power device consisting of the engine 42 and the speed reducer 41 drives the chain 62, then the chain 62 pulls the conveying plate 61 connected with the bottom of the trolley through the connecting hinge 63 to indirectly drive the trolley to move, the power source of the trolley moving is changed from the friction between the wheels and the lifting beam 5 into the engagement between the chain 62 and the driving chain wheel 9, the transmission quality of the power is improved, the sliding is effectively avoided, and the abrasion is reduced.

In addition, the meshing structure of the driving chain wheel 9 and the chain 62 has higher accuracy of motion control than the surface contact structure of the simple wheel and the crane beam 5 in a track type, so that the crane trolley has better braking effect and can perform more accurate control on the position of the crane trolley.

The whole body of the traveling mechanism adopts a conveying belt structure, the conveying plate 61 is connected and positioned through a chain 62 hung on a driving chain wheel 9, when the conveying plate 61 is positioned at a horizontal position, the moving direction of the conveying plate is tangent to a bearing wheel 7 and is meshed with the bearing wheel 7 through a groove and a latch 64, when the conveying plate 61 moves to two ends of the conveying belt, as the diameter of a coupler 8 is smaller than that of the bearing wheel 7, the conveying plate 61 can be limited and pulled by the chain 62 to rotate around the coupler 8, when the conveying plate 61 continues to rotate to be tangent to the bearing wheel 7, the latch 64 on the conveying plate 61 can be meshed with the groove on the bearing wheel 7 again, so that the whole device can keep a compact structure for a long time in the operation process, the external disturbance resistance is strong, and compared with a track type structure which depends on the limiting effect of wheels and tracks on trolleys, a better limiting effect.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A chain type travelling mechanism of a conveying belt type crane trolley comprises the crane trolley (1), a fixing plate (2), a trolley (3), a speed reducer (41), an engine (42), a crane beam (5), conveying belts (6), a conveying plate (61), a chain (62), a connecting hinge (63), a latch (64), a bearing wheel (7), a coupling (8) and a driving chain wheel (9), wherein two groups of the crane beam (5) and two groups of the conveying belts (6) are respectively arranged on the trolley (3), the crane beam (5) and the conveying belts (6) respectively cross two ends of the trolley (3) in pairs in parallel, the crane trolley (1) is arranged on the two groups of the conveying belts (6) which are parallel to each other, the chain type travelling mechanism is characterized in that the fixing plate (2) is arranged at the bottom of the crane trolley (1), and the conveying plates (61) which are sequentially arranged are arranged on the, fixed plate (2) and part conveying plate (61) are through bolted connection, conveyer belt (6) respectively are provided with a pair of driving sprocket (9) at parallel lifting beam (5) both ends of ascending orientation, and every driving sprocket (9) equal symmetric distribution is in conveying plate (61) both sides, every all is provided with one between driving sprocket (9) and passes two driving sprocket (9) centers and links to each other with lifting beam (5) loose axle, is located conveying plate (61) and hangs chain (62) that have parallel lifting beam on two driving sprocket (9) with one side, conveying plate (61) both sides all hang chain (62), chain (62) are connected with conveying plate (61) through connecting hinge (63).

2. The conveyor belt chain trolley travelling mechanism of claim 1, wherein: between two pairs of driving sprocket (9) of conveyer belt (6) inside, still be provided with side by side in proper order direction perpendicular to conveyer belt (6) extending direction's bearing wheel (7), bearing wheel (7) and conveying board (61) contact.

3. The conveyor belt chain trolley travelling mechanism of claim 1, wherein: the two groups of hoisting beams (5) are positioned between the two groups of conveyor belts (6) and are respectively close to the conveyor belt (6) closest to the two groups of hoisting beams.

4. The conveyor belt chain trolley travelling mechanism of claim 1, wherein: each pair of driving chain wheels (9) is connected with the movable shaft through a coupler (8).

5. The conveyor belt chain trolley travelling mechanism of claim 2, wherein: the rotating shaft of the bearing wheel (7) is fixed on the hoisting beam (5), and the bearing wheel (7) can only rotate along the rotating shaft.

6. The conveyor belt chain trolley travelling mechanism of claim 2, wherein: the conveying plate (61) and the bearing wheel (7) are provided with clamping teeth (64) parallel to the hoisting beam (5), and the middle part of the bearing wheel (7) is provided with a groove meshed with the clamping teeth (64).

7. The conveyor belt chain trolley travelling mechanism of claim 4, wherein: the diameter of the coupler (8) is smaller than that of the bearing wheel (7).

8. The conveyor belt chain trolley travelling mechanism of claim 4, wherein: along the direction of the parallel lifting beam (5), two groups of couplers (8) at the same end of two groups of conveying belts (6) are also respectively connected with two groups of power devices consisting of the speed reducer (41) and the engine (42).