CN201115344Y

CN201115344Y - Mower lifting device

Info

Publication number: CN201115344Y
Application number: CNU2007200254287U
Authority: CN
Inventors: 程广森
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-16
Filing date: 2007-07-16
Publication date: 2008-09-17
Anticipated expiration: 2017-07-16

Abstract

The utility model relates to the technical field of a farm machine, namely, a mowing machine lift device, splined shaft support saddles A and B are arranged on a rear frame stand of a left and a right draft arms, spline shafts are arranged on the splined shaft support saddle A and B and are provided radially with a lift arm B, a spline shaft pull blade pin and a lift arm A respectively, a cylinder support saddle and a tension spring journal stirrup are arranged on a beam at the middle part of the left and the right draft arms, a hydraulic cylinder is connected to the cylinder support saddle and the outer connection point of the lift arm A, a tension spring is connected to the tension spring journal stirrup and the outer connection point of the spline shaft pull blade pin, and a suspension hole is arranged at the outer end of the lift arm B. The mowing machine lift device has the advantages that the height of a cutting knife assembly can be adjusted freely, the damage is avoided, because a mowing machine is hung by a hoisting cable or an S-shaped hook, the mowing machine can be suspended slightly when in work, so as to cause the mowing machine to have better profile modeling capacity and reasonable trafficability characteristic, thereby the mowing machine can be applied to various lift devices.

Description

A kind of mower lifting device

Technical field:

The utility model relates to agricultural machinery technological field, refers in particular to the lifting device that a kind of pull-alongs mower is used.

Background technology:

At present, the mower of tractor that people use or tricycle traction, mostly be fixed on the vehicle hanging frame 10 of vehicle rear, because vehicle hanging frame 10 is highly fixing in the process of mowing, when running into barrier such as bigger, higher fragment of brick, stone or stub, easily cutter is damaged, in addition, because mower is fixed on the vehicle hanging frame 10, makes the cutter of mower too stiff to the pressure on ground, mower is damaged.

Summary of the invention:

The purpose of this utility model provides a kind of adjustable for height mower, and, mower is slightly suspended when work, make mower have good profiling ability and rational trafficability characteristic.

The utility model is achieved in that a kind of mower lifting device, the afterframe frame that it is characterized in that left and right sides draft arm is provided with splined shaft bearing first, second, in splined shaft bearing first, splined shaft is installed on the second, on splined shaft, radially be provided with lift arm second respectively, splined shaft towing plate pin and lifting bracelet, the middle beam of left and right sides draft arm is provided with cylinder support and extension spring journal stirrup, one end of hydraulic jack is connected on the cylinder support, the other end is connected on the outer tie point that promotes bracelet, one end of extension spring is connected on the extension spring journal stirrup, the other end is connected on the outer tie point of splined shaft towing plate pin, is provided with suppending hole in the outer end of lift arm second.

Above-mentioned splined shaft towing plate pin is arranged on the splined shaft between splined shaft bearing first, the second, promotes the outside that bracelet and lift arm second branch are located at splined shaft bearing first, second.

Above-mentioned left and right sides draft arm and the seam of afterframe frame are triangular framing, are provided with crossbeam at the middle part of triangular framing.

The outstanding compared to existing technology advantage of the utility model is:

1, utilize the utility model can freely adjust the height of mower, when running into barriers such as bigger, higher fragment of brick, stone or stub when mower, operating hydraulically operated lifting action bars or button, oil cylinder work, can improve the terrain clearance of mower immediately, avoid cutter to damage.

2, the installation shaft with mower is hinged on the left and right sides draft arm 10, the lift arm second of mower is connected on the suppending hole 4011 of lift arm second of the present utility model 401 outer ends with steel wire rope (or S hook), utilize the telescopic action of extension spring that mower is slightly suspended when work, make mower have good profiling ability and rational trafficability characteristic.

3, the utility model is reasonable in design, and is simple in structure, easy to manufacture, is convenient to promote, and is suitable for doing lifting device and uses in various productions.

Description of drawings:

Fig. 1 is a perspective view of the present utility model.

Embodiment:

With specific embodiment the utility model is further described below:

Referring to Fig. 1: a kind of mower lifting device, the afterframe frame 101 that it is characterized in that left and right sides draft arm 10 is provided with splined shaft bearing first, second 41,42, in splined shaft bearing first, second 41, splined shaft 40 is installed on 42, on splined shaft 40, radially be provided with lift arm second 401 respectively, splined shaft towing plate pin 402 and lifting bracelet 403, the middle beam 102 of left and right sides draft arm 10 is provided with cylinder support 21 and extension spring journal stirrup 31, one end of hydraulic jack 20 is connected on the cylinder support 21, the other end is connected on the outer tie point 4031 that promotes bracelet 403, one end of extension spring 30 is connected on the extension spring journal stirrup 31, the other end is connected on the outer tie point 4021 of splined shaft towing plate pin 402, is provided with suppending hole 4011 in the outer end of lift arm second 401.

Above-mentioned splined shaft towing plate pin 402 is arranged on the splined shaft 40 between splined shaft bearing first, the second 41,42, promotes the outside that bracelet 403 and lift arm were located at splined shaft bearing first, second 41,42 in 401 minutes.

Above-mentioned left and right sides draft arm 10 is a triangular framing with 101 seam of afterframe frame, is provided with crossbeam 102 at the middle part of triangular framing.

Application of the present utility model: left and right sides draft arm 10 is installed on tractor or the motor vehicles, the installation shaft of mower is hinged on the left and right sides draft arm 10, the lift arm second of mower is connected the suppending hole 4011 of lift arm second 401 outer ends with steel wire rope (or S hook), with oil cylinder 20 and fluid pressure line, hydraulic pump and lifting manipulation device connect, operation lifting manipulation device, stretching out and indentation of control hydraulic jack 20 upper piston rods 201, drive splined shaft 40 rotations by promoting bracelet 403, lift arm 401 rotates simultaneously thereupon, tie up to steel wire rope (or S hook) on the suppending hole 4011 of lift arm 401 outer ends by bolt and drive the cutter assembly lifting of mower, promptly controlled the lifting of mower knife assembly.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1. mower lifting device, the afterframe frame (101) that it is characterized in that left and right sides draft arm (10) is provided with splined shaft bearing first, second (41,42), in splined shaft bearing first, second (41, splined shaft (40) is installed 42), on splined shaft (40), radially be provided with lift arm second (401) respectively, splined shaft towing plate pin (402) and lifting bracelet (403), the middle beam (102) of left and right sides draft arm (10) is provided with cylinder support (21) and extension spring journal stirrup (31), one end of hydraulic jack (20) is connected on the cylinder support (21), the other end is connected on the outer tie point (4031) that promotes bracelet (403), one end of extension spring (30) is connected on the extension spring journal stirrup (31), the other end is connected on the outer tie point (4021) of splined shaft towing plate pin (402), is provided with suppending hole (4011) in the outer end of lift arm second (401).

2. a kind of mower lifting device according to claim 1, it is characterized in that described splined shaft towing plate pin (402) is arranged on the splined shaft (40) between splined shaft bearing first, the second (41,42), promotes the outside that bracelet (403) and lift arm second (401) branch is located at splined shaft bearing first, second (41,42).

3. a kind of mower lifting device according to claim 1 is characterized in that described left and right sides draft arm (10) and afterframe frame (101) seam are triangular framing, is provided with crossbeam (102) at the middle part of triangular framing.