CN210635673U

CN210635673U - Novel lifting structure of tractor

Info

Publication number: CN210635673U
Application number: CN201920819951.XU
Authority: CN
Inventors: 刘君岩; 李广云
Original assignee: Tianjin Abeimo Robot Technology Co ltd
Current assignee: Tianjin Abeimo Robot Technology Co ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-05-29
Anticipated expiration: 2029-06-03

Abstract

The utility model belongs to the field of auxiliary devices for tractors, and relates to a lifting device, in particular to a novel lifting structure of a tractor, wherein the lower end of a lifting column is positioned in a mounting seat, the lower end part of the lifting column extends outwards along the radial direction and is provided with a plurality of extension rods at uniform intervals, the outer end part of each extension rod is embedded in a corresponding guide groove made in the mounting seat in a sliding way, a pressure spring is arranged between the lower end surface of the lifting column and the bottom surface of the mounting seat and is in a compression state, the upper end of the lifting column can be ejected out from a through hole, the outer side of the lifting column positioned between the extension rods and the upper end surface of the mounting seat is sleeved with a sleeve, the lower end part of the sleeve is provided with a plurality of cylindrical cams at uniform intervals, the positions and the number of the cams are matched with the extension rods, a plurality of the surfaces of the cams are integrally and continuously manufactured, the surface is smooth and can apply downward pressure to, the sleeve is connected with the output end of a rotary driving device.

Description

Novel lifting structure of tractor

Technical Field

The utility model belongs to the auxiliary device field for the tractor relates to a elevating gear, especially a novel elevation structure of tractor.

Background

With the rapid development of the logistics industry, the automatic loading and unloading device in the logistics management system is also developed in spring. A large number of automatic guide transport vehicles are put in corresponding logistics links to replace the original manual loading and unloading working mode.

An automatic guided transport vehicle, AGV for short, is a transport device which can automatically cooperate with a hanging vehicle or a hanging plate for stacking materials, and is hung, locked and consigned as the name implies. At present, one end of a hanging vehicle for stacking materials is generally provided with a hanging plate, and a hanging hole is arranged in the hanging plate in the horizontal direction. When the AGV and the hanging vehicle are matched, the process generally moves the AGV to the lower part of the hanging hole, and then the lifting device mounted on the AGV lifts to enable the lifting column to be embedded in the hanging hole, so that the hanging and locking process is realized.

The hanging device for the existing AGV comprises a mounting seat, the mounting seat is arranged in the AGV, a through hole is manufactured in the middle of the upper end of the mounting seat, a lifting column is embedded in the through hole, a motor is transversely installed in the mounting seat beside the lifting column, a vertically arranged disc is installed at the output end of the motor, and one end of the disc is installed on one side of the bottom of the crankshaft and the lifting column. The lifting device has certain defects in the using process. Firstly, only one side of the lifting column and the crankshaft are installed, and only the side part of the lifting column is actively stressed in the lifting process, so that the lifting column is easy to deviate and shake in the lifting process due to uneven stress and abrasion of a connecting part after long-time use, and even the upper end part of the lifting column is clamped below the through hole and can not lift when the deviation is serious; secondly, because the size of the motor used at present is generally larger than the size of the motor used in the radial direction, the space occupied by the lifting device is also increased by the transverse mode of the motor in the existing device, and the volume is larger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of prior art, provide a rational in infrastructure, occupy small, the novel elevation structure of tractor that the lift post atress is even.

The utility model adopts the technical proposal that:

the utility model provides a novel elevation structure of tractor, includes a mount pad, a through-hole is made at mount pad upper end middle part, and this through-hole is embedded to be equipped with the lift post, its characterized in that: the lower end of the lifting column is positioned in the mounting seat, the lower end of the lifting column extends outwards along the radial direction and is provided with a plurality of extension rods at uniform intervals, the outer end of each extension rod is embedded in a corresponding guide groove formed in the mounting seat in a sliding manner, a pressure spring is arranged between the lower end surface of the lifting column and the bottom surface of the mounting seat and is in a compression state, the upper end of the lifting column can be ejected out of the through hole, a sleeve is sleeved on the outer side of the lifting column between the extension rods and the upper end surface of the mounting seat, a plurality of cylindrical cams are formed at the lower end of the sleeve at uniform intervals, the positions and the number of the cams are matched with the extension rods, the surfaces of the plurality of cams are integrally and continuously manufactured, the surfaces are flat and smooth and can apply downward pressure to the extension rods, the sleeve is connected with the output end of a rotary driving device and can rotate relative to the lifting column along the radial direction, the height position of the lifting rod is adjusted through continuous change of the low position and the high position of the cam.

And the outer end of the extension rod is sleeved with a guide wheel, and the surface of the guide wheel is tightly pressed with the surface of the cam made by the sleeve.

And, the outer fringe of sleeve upper end outer fringe fixed mounting has a round driven gear, is located the mount pad of sleeve side and installs a motor, a driving gear is installed to the output of motor, and this driving gear and driven gear mesh mutually.

And a sensor is arranged in the mounting seat beside the sleeve, an induction gear is arranged at the induction end of the sensor, and the induction gear is meshed with the driven gear of the sleeve.

The utility model has the advantages that:

1. the utility model discloses in, install the pressure spring below the lift post, thereby realize the rising of lift post, a plurality of cams that the tip made under the sleeve set up to the arc, and the integrative smooth level and smooth system in surface of each cam goes out, make the cam carry out the application of force to the extension rod of tip installation under the lift post all the time, the driving gear of the driven gear cooperation motor of the integrative installation of sleeve carries out the circumference and rotates, thereby realize the continuous low level to the high-order of lift post extension rod, the periodic variation of high-order to low-order, thereby control the lift of lift post, a plurality of extension rods atress time is the same with the atress position, the atress is stable even.

3. The utility model discloses in, the guide pulley of extension rod overcoat is used for carrying out direct contact with the surface of cam, becomes rolling friction with sliding friction.

4. The utility model discloses in, the motor passes through the driving gear and the driven gear meshing installation of sheathed tube, realizes the vertical setting of motor, and then saves space.

5. The utility model discloses in, through the response gear of sensor and driven gear ratio, sleeve pipe pivoted angle is learnt to the accessible sensor, information such as speed and cycle, and then learns the position and the position change of lift post in the corresponding time.

Drawings

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

FIG. 2 is a partial cross-sectional view of the sleeve position of FIG. 1;

fig. 3 is a schematic structural view of the lifting column in the high position.

Detailed Description

The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.

A novel lifting structure of a tractor comprises a mounting seat 1, wherein a through hole is manufactured in the middle of the upper end of the mounting seat, a lifting column 4 is embedded in the through hole, the innovation of the novel lifting structure is that the lower end of the lifting column is positioned in the mounting seat, a plurality of extension rods 13 are installed at the lower end of the lifting column and extend outwards along the radial direction at uniform intervals, the outer end of each extension rod is slidably embedded in a corresponding guide groove manufactured in the mounting seat, a pressure spring 18 is installed between the lower end face of the lifting column and the bottom face 12 of the mounting seat and is in a compression state, the upper end of the lifting column can be ejected out from the through hole, a sleeve 5 is sleeved outside the lifting column positioned between the extension rods and the upper end face of the mounting seat, a plurality of cylindrical cams 14 are manufactured at uniform intervals at the lower end of the sleeve, the positions and the number of the cams are matched with the extension rods, and a plurality of the surfaces of the cams are integrally and continuously manufactured, the surface is flat and smooth, downward pressure can be applied to the extension rod, the sleeve is connected with the output end of a rotary driving device and can rotate relative to the lifting column in the radial direction, and the height position of the lifting rod is adjusted through continuous change of the low position and the high position of the cam.

In this embodiment, the outer end of the extension rod is sleeved with a guide wheel 11, and the surface of the guide wheel is tightly pressed against the surface of the cam formed by the sleeve.

In this embodiment, a circle of driven gear 6 is fixedly installed on the outer edge of the upper end of the sleeve, a motor 15 is installed in the installation seat beside the sleeve, a driving gear 2 is installed at the output end of the motor, and the driving gear is meshed with the driven gear.

In this embodiment, a sensor 8 is installed in the mounting seat beside the sleeve, an induction gear 7 is installed at an induction end of the sensor, and the induction gear is meshed with the driven gear of the sleeve.

In this embodiment, in order to prevent the pressure spring from being displaced in a compressed state, and in order to extend the length of the pressure spring, the performance requirement of the pressure spring is reduced. And a containing groove 17 is formed in the lower end face of the lifting column inwards along the extension direction of the lifting column, a pressure spring is placed in the containing groove, and two ends of the pressure spring are respectively in compression joint with the end face of the containing groove and the bottom face of the mounting seat.

In this embodiment, two box bodies 9 are respectively installed on two sides inside the installation seat, a motor is installed in one box body, a sensor is installed in the other box body, the caulking grooves 16 are respectively formed in the outer side end faces of the two box bodies along the longitudinal direction, two extension rods are preferably installed at the bottoms of the lifting columns corresponding to the two caulking grooves, the end portions of the two extension rods are respectively provided with an embedded block 10, and the two embedded blocks are respectively embedded in the corresponding caulking grooves in a sliding manner.

The utility model discloses a working process is:

the utility model discloses during the use, motor output shaft drives the driving gear and rotates, and the driving gear drives the synchronous rotation of sleeve, and relative motion takes place for cam and the extension rod that the tip made under the sleeve, and when telescopic cam high-order position rotated to the synchronous position of extension rod, upwards promoted the lift post under the effect of pressure spring and released by the through-hole, when telescopic cam low-order position rotated to the synchronous position of extension rod, then in compressing the lift post with the pressure spring by the retraction through-hole.

The utility model discloses in, install the pressure spring below the lift post, thereby realize the rising of lift post, a plurality of cams that the tip made under the sleeve set up to the arc, and the integrative smooth level and smooth system in surface of each cam goes out, make the cam carry out the application of force to the extension rod of tip installation under the lift post all the time, the driving gear of the driven gear cooperation motor of the integrative installation of sleeve carries out the circumference and rotates, thereby realize the continuous low level to the high-order of lift post extension rod, the periodic variation of high-order to low-order, thereby control the lift of lift post, a plurality of extension rods atress time is the same with the atress position, the atress is stable even.

Claims

1. The utility model provides a novel elevation structure of tractor, includes a mount pad, a through-hole is made at mount pad upper end middle part, and this through-hole is embedded to be equipped with the lift post, its characterized in that: the lower end of the lifting column is positioned in the mounting seat, the lower end of the lifting column extends outwards along the radial direction and is provided with a plurality of extension rods at uniform intervals, the outer end of each extension rod is embedded in a corresponding guide groove formed in the mounting seat in a sliding manner, a pressure spring is arranged between the lower end surface of the lifting column and the bottom surface of the mounting seat and is in a compression state, the upper end of the lifting column can be ejected out of the through hole, a sleeve is sleeved on the outer side of the lifting column between the extension rods and the upper end surface of the mounting seat, a plurality of cylindrical cams are formed at the lower end of the sleeve at uniform intervals, the positions and the number of the cams are matched with the extension rods, the surfaces of the plurality of cams are integrally and continuously manufactured, the surfaces are flat and smooth and can apply downward pressure to the extension rods, the sleeve is connected with the output end of a rotary driving device and can rotate relative to the lifting column along the radial direction, the height position of the lifting rod is adjusted through continuous change of the low position and the high position of the cam.

2. The novel lifting structure of the tractor according to claim 1, characterized in that: the outer end of the extension rod is sleeved with a guide wheel, and the surface of the guide wheel is tightly pressed with the surface of a guide groove formed by the sleeve.

3. The novel lifting structure of the tractor according to claim 1, characterized in that: the outer fringe fixed mounting of sleeve upper end has a round driven gear, installs a motor in the mount pad that is located the sleeve side, a driving gear is installed to the output of motor, and this driving gear and driven gear mesh mutually.

4. The novel lifting structure of the tractor according to claim 1, characterized in that: a sensor is installed in the mounting seat beside the sleeve, an induction gear is installed at the induction end of the sensor, and the induction gear is meshed with the driven gear of the sleeve.