CN218058195U

CN218058195U - Trackless portal frame walking aligning mechanism

Info

Publication number: CN218058195U
Application number: CN202221197284.4U
Authority: CN
Inventors: 李晓英; 董立波; 白光磊; 刘志山
Original assignee: Suzhou Cexun Intelligent Automotive Technology Co ltd
Current assignee: Suzhou Cexun Intelligent Automotive Technology Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-12-16
Anticipated expiration: 2032-05-17

Abstract

The utility model discloses a trackless portal frame walking aligning mechanism, including the device body, the device body includes drive slewing bearing, walking support drive wheel, aligning device, motor reducer sprocket drive device and slewing bearing and fixing support, walking support drive wheel is installed in the drive slewing bearing left and right sides in a symmetrical mode, motor reducer sprocket drive device is installed at drive slewing bearing rear end, aligning device and slewing bearing are all installed at drive slewing bearing top, fixing support is installed at aligning device and slewing bearing top; the correcting device comprises a ball-head ejector rod fixing support, a sliding sleeve, a ball-head ejector rod and a spring, the spring is provided with a group of springs, the group of springs are symmetrically installed in the ball-head ejector rod fixing support, the sliding sleeve is installed at one end of the spring, and the ball-head ejector rod is installed at the other end of the spring. The device can carry the portal frame very conveniently, and can also ensure the accuracy of the direction of the portal frame when moving.

Description

Trackless portal frame walking aligning mechanism

Technical Field

The utility model relates to a portal frame field specifically is trackless portal frame walking return mechanism.

Background

The portal frame is a novel small-sized hoisting portal frame developed according to the requirements of carrying equipment, warehouse in and out, hoisting and maintaining heavy equipment and material transportation required by daily production of medium and small factories (companies). The method is suitable for manufacturing moulds, automobile repair factories, mines, civil engineering construction sites and occasions needing lifting. The lifting machine is commonly used for material transportation and up-and-down use of constructors in building construction, and achieves lifting mechanization. The manpower can be reduced, the production and operation cost can be reduced, and the working efficiency can be improved.

The existing portal frame walking device has the following defects:

the conventional trackless portal frame on the market is driven to form a rigid driving device and a universal following wheel which are respectively arranged in the front and the back, the mechanism can move in a preset direction when moving forwards, and the portal frame does not move backwards in the preset direction due to the deflection of universal wheels on two sides under the action of the unevenness of the universal wheels and the ground when moving backwards, or the portal frame is blocked under the extreme condition, and the problem is particularly obvious when the portal frame structure has a large span (the span is more than or equal to 20 m).

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a trackless portal frame walking return mechanism has solved current portal frame and has not been convenient for carry, and in handling, the portal frame transport pulley is by the dead problem of card easily.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the trackless portal frame walking and aligning mechanism comprises a device body, wherein the device body comprises a driving rotary support, a walking support driving wheel, an aligning device, a motor reducer chain wheel driving device, a rotary support bearing and a fixed support, the driving rotary support is positioned at the bottom of the device body, the walking support driving wheel is symmetrically arranged on the left side and the right side of the driving rotary support, the motor reducer chain wheel driving device is arranged at the rear end of the driving rotary support, the aligning device and the rotary support bearing are both arranged at the top of the driving rotary support, the aligning device is positioned at the front end of the rotary support bearing, and the fixed support is arranged at the tops of the aligning device and the rotary support bearing;

preferably, the aligning device comprises a ball head ejector rod fixing support, a sliding sleeve, a ball head ejector rod and a spring, the spring is provided with a group, the spring is arranged in the ball head ejector rod fixing support in a symmetrical mode, the sliding sleeve is arranged at one end of the spring, and the ball head ejector rod is arranged at the other end of the spring.

Preferably, the front end of the chain driving device of the motor speed reducer is in meshed connection with a group of walking supporting driving wheels through gears.

Preferably, the fixed support is of a frame-shaped structure, and the front end and the rear end of the fixed support are of a through structure.

Preferably, the driving rotating bracket is in a structure like a Chinese character 'zi'.

(III) advantageous effects

The utility model provides a trackless portal frame walking aligning mechanism. The method has the following beneficial effects:

the trackless portal frame walking and aligning mechanism is currently used for a movable traffic sign portal frame, the portal frame can walk in a preset direction when going forward and retreats, the portal frame is respectively provided with a driving mechanism in front and at the back of a single side, namely, the driving mechanisms are symmetrically arranged in a two-side driving mode, four driving mechanisms are simultaneously started when the portal frame goes forward, so that the portal frame is carried, when the portal frame runs on an uneven road surface and deviates from a straight line direction, the walking supporting driving wheels are pulled back through the steering and aligning mechanism, so that the running direction of the portal frame is adjusted, the same is true when the portal frame retreats, when the aligning mechanism runs, the angle deviation between the driving wheels and the portal frame is corrected by overcoming the rolling friction torque between the wheels and the ground in the walking process through the double-spring action and the ball ejector rod, so that the running target direction of the portal frame is ensured.

Drawings

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

FIG. 2 is a schematic structural view of the aligning device of the present invention;

fig. 3 is a schematic structural diagram of the device body assembly of the present invention.

In the figure, 1, an apparatus body; 2. driving the rotating support; 3. a walking support driving wheel; 4. a correcting device; 5. a motor reducer sprocket drive device; 6. a slewing support bearing; 7. a fixed support; 8. a ball head ejector rod fixing bracket; 9. a sliding sleeve; 10. a ball head ejector rod; 11. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: the trackless gantry walking and centering mechanism comprises a device body 1, wherein the device body 1 comprises a driving rotary support 2, a walking support driving wheel 3, a centering device 4, a motor speed reducer chain wheel driving device 5, a rotary support bearing 6 and a fixed support 7, the driving rotary support 2 is positioned at the bottom of the device body 1, the walking support driving wheel 3 is symmetrically arranged at the left side and the right side of the driving rotary support 2, the motor speed reducer chain wheel driving device 5 is arranged at the rear end of the driving rotary support 2, the centering device 4 and the rotary support bearing 6 are both arranged at the top of the driving rotary support 2, the centering device 4 is positioned at the front end of the rotary support bearing 6, and the fixed support 7 is arranged at the tops of the centering device 4 and the rotary support bearing 6;

returning positive device 4 and including bulb ejector pin fixed bolster 8, sliding sleeve 9, bulb ejector pin 10 and spring 11, spring 11 is equipped with a set ofly, and is a set of spring 11 is the symmetry mode and installs in bulb ejector pin fixed bolster 8, sliding sleeve 9 is installed in spring 11 one end, and bulb ejector pin 10 installs at the 11 other ends of spring, and this kind of return positive device 4 overcomes the rolling friction moment of walking in-process walking support drive wheel and ground through a set of spring 11 effect, bulb ejector pin 10 and corrects the angular deviation of walking support drive wheel 3 and portal frame to guarantee portal frame operation target direction.

The front end of the motor speed reducer chain wheel driving device 5 is meshed with a group of walking support driving wheels 3 through gears, and the motor speed reducer chain wheel driving device 5 can effectively drive the walking support driving wheels 3 to rotate, so that the walking support driving wheels 3 can conveniently transport a portal frame.

The fixed support 7 is of a frame-shaped structure, the front end and the rear end of the fixed support 7 are of a through structure, and the frame-shaped fixed support 7 is used for supporting and limiting bottom feet of the portal frame, so that the situation that the portal frame shifts when moving is prevented.

The driving rotary support 2 is in a Chinese character 'Gong' structure, the driving rotary support 2 is in the Chinese character 'Gong' structure so as to improve the stability of the installation assembly, and the driving rotary support 2 is hollow so as to support the connection between the driving wheel 3 and the motor reducer sprocket driving device 5 for the convenience of walking.

The working principle is as follows: during operation, an operator puts the supporting legs at the bottom of the portal frame into the fixed supports 7 in the four device bodies, so that the portal frame is fixed, the fixed supports 7 can effectively limit the bottom of the portal frame, the situation of preventing displacement is achieved, when the portal frame is transported, the operator starts the motor reducer sprocket drive device 5 to operate, the motor reducer sprocket drive device 5 drives the group of walking support driving wheels 3 to rotate, so that the portal frame is moved and transported, in the moving process, when the situation of uneven road surface is met, so that the portal frame is moved to deviate from the linear direction, the walking support driving wheels 3 are pulled back through the steering return mechanism 4, so that the operation direction of the portal frame is adjusted, the same principle is achieved when the portal frame retreats, and when the return device 4 operates, the ball ejector rod 10 overcomes the rolling friction torque between the walking support driving wheels 3 and the ground in the moving process to correct the angle deviation between the walking support driving wheels 3 and the portal frame through the action of the group of springs 11, so as to ensure the accurate operation target direction of the portal frame.

The utility model 1, a device body; 2. driving the rotating support; 3. a walking support driving wheel; 4. a correcting device; 5. a motor reducer sprocket drive device; 6. a slewing support bearing; 7. a fixed support; 8. A ball head ejector rod fixing bracket; 9. a sliding sleeve; 10. a ball head ejector rod; 11. spring, part are the parts that general standard spare or technical personnel in the field know, and its structure and principle all are this technical personnel all can learn through the technical manual or learn through conventional experimental method, the utility model provides a problem be that current portal frame is not convenient for carry, and in handling, portal frame transport pulley is by the dead problem of card easily, the utility model discloses a mutual combination of above-mentioned parts can be very convenient carry the portal frame, and can also guarantee the accuracy of portal frame direction when moving.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Trackless portal frame walking return mechanism, its characterized in that: the device comprises a device body (1), wherein the device body (1) comprises a driving rotary support (2), a walking supporting driving wheel (3), a correcting device (4), a motor speed reducer chain wheel driving device (5), a rotary supporting bearing (6) and a fixed support (7), the driving rotary support (2) is positioned at the bottom of the device body (1), the walking supporting driving wheel (3) is symmetrically arranged at the left side and the right side of the driving rotary support (2), the motor speed reducer chain wheel driving device (5) is arranged at the rear end of the driving rotary support (2), the correcting device (4) and the rotary supporting bearing (6) are both arranged at the top of the driving rotary support (2), the correcting device (4) is positioned at the front end of the rotary supporting bearing (6), and the fixed support (7) is arranged at the tops of the correcting device (4) and the rotary supporting bearing (6);

the aligning device (4) comprises a ball head ejector rod fixing support (8), a sliding sleeve (9), a ball head ejector rod (10) and a spring (11), wherein the spring (11) is provided with a set of springs (11) and a set of springs (11) are installed in the ball head ejector rod fixing support (8) in a symmetrical mode, the sliding sleeve (9) is installed at one end of the spring (11), and the ball head ejector rod (10) is installed at the other end of the spring (11).

2. The trackless gantry walking and aligning mechanism of claim 1, wherein: the front end of the chain wheel driving device (5) of the motor speed reducer is meshed and connected with a group of walking supporting driving wheels (3) through gears.

3. The trackless gantry walking and aligning mechanism of claim 1, wherein: the fixed support (7) is of a frame-shaped structure, and the front end and the rear end of the fixed support (7) are of a through structure.

4. The trackless gantry walking and aligning mechanism of claim 1, wherein: the driving rotary support (2) is in a structure shaped like a Chinese character 'twenty'.