CN203267867U

CN203267867U - Farm-oriented auto-unloading vehicle back box board automatic opening-and-closing device

Info

Publication number: CN203267867U
Application number: CN 201320279215
Authority: CN
Inventors: 孙乔芳; 孙桥有; 谢昆伍; 朱小良
Original assignee: LULIANG YUNHAI MACHINERY Co Ltd
Current assignee: LULIANG YUNHAI MACHINERY Co Ltd
Priority date: 2013-05-21
Filing date: 2013-05-21
Publication date: 2013-11-06
Anticipated expiration: 2023-05-21

Abstract

The utility model discloses a farm-oriented auto-unloading vehicle back box board automatic opening-and-closing device which comprises a shaft arranged on a bearing pedestal at the bottom of a packing box, a clamping hook and a swing arm are fixedly connected to the shaft, a clamping tongue is welded on a portion, corresponding to the clamping hook, of the lower side of a back box board, and a pull rod set capable of carrying out rated elastic expansion and controlling clamping hook rotation angles is hinged between the swing arm and a vehicle frame. According to the farm-oriented auto-unloading vehicle back box board automatic opening-and-closing device, self-weight of the back box board when the back box board inclines is used as power for unhooking or hooking, an automatic opening-and-closing function of the back box board can be achieved while a power device does not need to be independently arranged, therefore, purchase cost of the power device is eliminated, and power consumption is not increased in the process of use. In addition, the farm-oriented auto-unloading vehicle back box board automatic opening-and-closing device is low in manufacturing cost, compact in structure, stable in operation, convenient to repair and easy to implement, and has good popularization value.

Description

A kind of tumbrel rearing-box plate recloser

Technical field

The utility model relates to farm vehicle manufacturing technology field, relates in particular to a kind of tumbrel rearing-box plate recloser.

Background technology

Generally all need before the each unloading of present tumbrel with manpower, rearing-box plate to be opened and could realize unloading automatically, during manpower switch rearing-box plate, the workman needs the up and down vehicle body several times, and labour intensity is large and have safety hazard, and work efficiency is also low.On the part tumbrel, also adopted and used the rearing-box plate recloser of pneumatic, electronic or fluid control on the automobile, though degree of automation is higher, but the equipment making cost is higher, and need to consume the energy, uneconomical during use, be not suitable for promoting on trac..So developing does not a kind ofly need to consume the energy and can realize that just the tumbrel rearing-box plate recloser of rearing-box plate auto-switch function is desirability.

The utility model content

The purpose of this utility model is to provide a kind of tumbrel rearing-box plate recloser that the energy just can be realized the rearing-box plate auto-switch function that do not need to consume.

the purpose of this utility model is to realize like this, the utility model comprises hinge and the latching device that rearing-box plate is connected with container, described container bottom is installed with one group of bearing seat near the rearing-box plate side, axle is arranged on bearing seat, be fixedly connected with grab and swing arm on axle, the rearing-box plate downside position corresponding with grab is welded with block tongue, be installed with the pull bar deck on vehicle frame, pull bar while and pull bar deck and the hinged installation of swing arm, the pull bar middle part is provided with limit coil, be set with spring and drag link sleeve outside pull bar between limit coil and pull bar deck, pull bar runs through by being processed with between a section of pull bar deck side, the cotter way that can supply the deck bearing pin to move along the pull bar length direction, the pull bar afterbody is equipped with stop nut.

The utility model arranges quantitatively the pull bar group of elastic telescopic the grab anglec of rotation is controlled in container bottom, self gravitation when utilizing rearing-box plate to tilt is as the power that breaks off relations or link up with, do not need to set up separately engine installation can realize the rearing-box plate auto-switch function, reduced the acquisition cost of engine installation, need not increase energy consumption during use, and cost of manufacture is low, and compact conformation, stable, maintenance convenience, easy to implement have promotional value preferably.

Description of drawings

Fig. 1 is the structural representation of the utility model locking states;

Fig. 2 is the structural representation of the critical unhook state of the utility model;

Fig. 3 is the structural representation of the utility model full open state.

In figure: 1-vehicle frame, 2-jacking device, 3-container, 4-hinge, 5-rearing-box plate, 6-latching device, 7-block tongue, 8-grab, 9-bearing seat, 10-axle, 11-swing arm, 12-pull bar, 13-limit coil, 14-spring, 15-drag link sleeve, 16-pull bar deck, 17-stop nut.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described, but never in any form the utility model is limited, any change or improvement based on the utility model training centre is done all belong to protection domain of the present utility model.

as shown in Figure 1, the utility model comprises hinge 4 and the latching device 6 that rearing-box plate 5 is connected with container 3, described container 3 bottoms are installed with one group of bearing seat 9 near rearing-box plate 5 sides, axle 10 is arranged on bearing seat 9, be fixedly connected with grab 8 and swing arm 11 on axle 10, the rearing-box plate 5 downsides position corresponding with grab 8 is welded with block tongue 7, be installed with pull bar deck 16 on

vehicle frame

1, 12 whiles and pull bar deck 16 and the hinged installation of swing arm 11 of pull bar, pull bar 12 middle parts are provided with limit coil 13, pull bar 12 outsides of 16 of limit coil 13 and pull bar decks are set with spring 14 and drag link sleeve 15, pull bar 12 runs through by being processed with between a section of pull bar deck 16 sides, the cotter way that can supply the deck bearing pin to move along pull bar 12 length directions, pull bar 12 afterbodys are equipped with stop nut 17.

when the needs automatic discharging, first manually open the latching device 6 of container 3 sides, rearing-box plate 5 and container 3 are only fixed by the hinge 4 at top and the grab 8 of bottom, open again 2 pairs of containers of jacking device 3 and carry out jacking, inclination along with container 3, when rotating around pull bar deck 16, pull bar 12 applies a pulling force to swing arm 11 under spring 14 effects, thereby pull grab 8 around axle 10 clickwises, grab 8 and the contact surface of block tongue 7 are reduced gradually, when the critical unhook state that arrives as shown in Figure 2, grab 8 separates automatically with block tongue 7, after jacking device 2 continues jacking, can arrive full open state as shown in Figure 3, satisfy the discharging requirement.

When needing to recover load station after discharging is completed and closing rearing-box plate 5, first progressively fall jacking device 2, along with container 3 falls after rise, the angle of release of rearing-box plate 5 downsides and container 3 is more and more less, pull bar 12 also ejects and drives grab 8 gradually around axle 10 left-hand revolutions, when returning to as shown in Figure 2 state, block tongue 7 snaps in grab 8 automatically, after jacking device 2 continues to fall after rise, grab 8 is progressively with block tongue 7 lockings, when returning to as shown in Figure 1 the position, more manually latching device 6 lockings of side are namely completed discharging operation.

Further, for improving the stability of switch, described grab 8 is 2～4, uniform being arranged on axle 10, and block tongue 7 quantity and position that rearing-box plate 5 downsides are arranged are corresponding with grab 8.

Preferably, more smooth and easy for the transition that makes the opening and closing critical conditions, the inner bayonet of described grab 8 is rectangular-shaped, and the outer driving surface of grab 8 is circular-arc, and the inside lower end of block tongue 7 is processed with chamfering.

Claims

1. tumbrel rearing-box plate recloser, comprise hinge (4) and latching device (6) that rearing-box plate (5) is connected with container (3), it is characterized in that: close rearing-box plate (5) side in described container (3) bottom is installed with one group of bearing seat (9), axle (10) is arranged on bearing seat (9), be fixedly connected with grab (8) and swing arm (11) on axle (10), rearing-box plate (5) the downside position corresponding with grab (8) is welded with block tongue (7), be installed with pull bar deck (16) on vehicle frame (1), pull bar (12) while and pull bar deck (16) and the hinged installation of swing arm (11), pull bar (12) middle part is provided with limit coil (13), be set with spring (14) and drag link sleeve (15) outside pull bar (12) between limit coil (13) and pull bar deck (16), pull bar (12) runs through by being processed with between a section of pull bar deck (16) side, the cotter way that can supply the deck bearing pin to move along pull bar (12) length direction, pull bar (12) afterbody is equipped with stop nut (17).

2. a kind of tumbrel rearing-box plate recloser according to claim 1, it is characterized in that: described grab (8) is 2～4, uniform being arranged on axle (10), block tongue (7) quantity and position that rearing-box plate (5) downside is arranged are corresponding with grab (8).

3. a kind of tumbrel rearing-box plate recloser according to claim 1, it is characterized in that: the inner bayonet of described grab (8) is rectangular-shaped, and the outer driving surface of grab (8) is circular-arc, and the inside lower end of block tongue (7) is processed with chamfering.