CN215735690U

CN215735690U - Traveling crane frame of semi-crawler tractor

Info

Publication number: CN215735690U
Application number: CN202121848133.6U
Authority: CN
Inventors: 王梦莹; 王志超; 王艳萍; 赵传扬; 邢鹏飞; 韩小坤; 徐清俊
Original assignee: Luoyang Tractor Research Institute Co ltd
Current assignee: Luoyang Tractor Research Institute Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-08
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a traveling frame of a semi-crawler tractor, belonging to the field of agricultural machinery, comprising a crossbeam and a crossbeam which are arranged in parallel, wherein the crossbeam and the crossbeam are fixedly connected through a plurality of sleeves, and a limiting device is arranged above the crossbeam; the limiting device comprises a pin shaft support fixed at the upper end of the cross beam and a limiting rod frame support arranged on the pin shaft support, and the pin shaft support and the limiting rod frame support are hinged through a pin shaft to realize relative swing; the upper part of the limit rod frame support is connected with the rear shaft shell of the tractor, and one side of the limit rod frame support, which is positioned in the length direction of the crossbeam, is connected with the tractor suspension mechanism. This driving frame is equipped with stop device, and the operation in-process can make the automobile body steady, has effectively improved tractor work efficiency to this driving frame simple structure, with low costs, convenient assembling.

Description

Traveling crane frame of semi-crawler tractor

Technical Field

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a traveling frame of a semi-crawler tractor.

Background

The semi-crawler tractor has the advantages of being not easy to slip due to wheel sinking, stable in advancing, high in traction rate and the like during operation in mountainous regions and paddy fields, and therefore the semi-crawler tractor is more and more widely applied to operation on complex ground. Most of the traveling frames of the existing semi-crawler tractors have the problems of large structural mass, high cost and inconvenience in wheel-track replacement and installation, and the traveling frames do not have limiting devices, so that overturn is easy to occur in the operation process, and the stability of an automobile body and the working efficiency are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a traveling crane frame of a semi-crawler tractor, which is provided with a limiting device, has a stable body in the operation process, can improve the working efficiency of the tractor, and has the advantages of simple structure, low cost and convenient assembly.

In order to achieve the purpose, the utility model adopts the technical scheme that: a traveling frame of a semi-crawler tractor comprises a girder and a beam which are arranged in parallel, wherein the girder and the beam are fixedly connected through a plurality of sleeves, and a limiting device is arranged above the beam; the limiting device comprises a pin shaft support fixed at the upper end of the cross beam and a limiting rod frame support arranged on the pin shaft support, and the pin shaft support and the limiting rod frame support are hinged through a pin shaft to realize relative swing; the upper part of the limit rod frame support is connected with the rear shaft shell of the tractor, and one side of the limit rod frame support, which is positioned in the length direction of the crossbeam, is connected with the tractor suspension mechanism. Has the advantages that: through installing stop device, can make the tractor steady at operation in-process automobile body, can effectively improve the work efficiency of tractor.

Furthermore, a tensioning sleeve welding piece used for connecting a tensioning wheel is fixed at one end of the crossbeam, a guide wheel connecting plate used for connecting a guide wheel is fixed at the other end of the crossbeam, and a supporting wheel connecting plate used for connecting a supporting wheel is fixed at the lower end of the crossbeam. Has the advantages that: girder overall structure is simple, is connected with the take-up pulley of tractor through tensioning sleeve pipe seam piece, connects the leading wheel through the leading wheel connecting plate, connects the thrust wheel of tractor through the thrust wheel connecting plate, convenient assembling.

Furthermore, the number of the supporting wheel connecting plates is three, and the supporting wheel connecting plates are fixed at the lower end of a girder of the traveling frame at equal intervals.

Furthermore, the number of the sleeves is two, two circular through holes are correspondingly formed in the crossbeam and the crossbeam along the length direction of the crossbeam, and the crossbeam are welded and fixed through the sleeves through the through holes.

Furthermore, the crossbeam and the crossbeam are both formed by welding profile steel, and the sleeve is made of a round steel pipe; the sleeve comprises a sleeve body and end covers welded and fixed at two ends of the sleeve body, and the sleeve body and the end covers enclose a hollow closed structure. The structure reduces the weight of the traveling crane frame to a certain extent and has higher strength.

Furthermore, a support frame is fixed above the cross beam, and the limiting device is installed on the cross beam through the support frame.

Furthermore, the pin shaft is vertical to the length direction of the cross beam, one end of the pin shaft is provided with a pin shaft end plate, and the pin shaft end plate is fixedly connected with the limiting rod frame support through a positioning bolt; an oil cup is arranged through the pin end plate and communicated with an oil way of the pin shaft, and is used for keeping lubrication between the pin shaft and the shaft sleeve. The oil cup and an oil path inside the pin shaft jointly form a lubricating unit, so that smooth and flexible relative motion between the pin shaft and the shaft sleeve is ensured.

Furthermore, oil seals are respectively arranged at two ends of the pin shaft support, which are positioned in the pin shaft hole. The oil seal plays a role in preventing water and sludge in the operation process of the tractor.

Furthermore, the upper end of the limit rod frame support is connected with a pressing plate through a vertical long bolt group, and the tractor rear axle shell is fixedly connected with the limit rod frame support through the long bolt group and the pressing plate.

Furthermore, the tensioning sleeve welding piece is fixed above the crossbeam and comprises a tensioning sleeve in the same direction with the crossbeam, a sleeve base is fixed at one end of the tensioning sleeve close to the limiting device, and a sleeve base welding piece is fixed on the sleeve base.

By adopting the technical scheme, the utility model can achieve the following beneficial effects:

1. the stop device who sets up can effectively avoid tractor semi-caterpillar track running gear's upset among the complex environment to the automobile body of in-process of realizing marcing is steady, improves tractor work efficiency.

2. The girder of the traveling crane frame is assembled by the section steel welded parts, the girder and the crossbeam are connected by the double-circular tube, and the traveling crane frame has the characteristics of light weight, high strength and good road surface adaptability, and simultaneously reduces the production cost.

3. The traveling crane frame is directly arranged on the rear output shaft of the tractor, the traveling crane frame is driven by the rear shaft to travel, and the traveling crane frame is simple in structure and convenient to assemble.

Drawings

FIG. 1 is a schematic structural view of a walking frame of a semi-crawler tractor according to the present application;

FIG. 2 is a schematic structural view of the longerons of FIG. 1;

FIG. 3 is a schematic structural view of the beam of FIG. 1;

FIG. 4 is a schematic structural view of the bushing of FIG. 1;

FIG. 5 is a schematic view of the stop device of FIG. 1;

fig. 6 is a schematic structural view of a pin connecting part of the spacing device of fig. 5.

In the figure: 1. the device comprises a girder, 1.1, a girder body, 1.2, a thrust wheel connecting plate, 1.3, a guide wheel connecting plate, 1.4, a sealing plate, 1.5, a tensioning sleeve, 1.6, a sleeve base, 1.7 and a sleeve base welding piece; 2. the device comprises a beam, 2.1, a beam body, 2.2, beam side plates, 2.3, a support frame, 2.4, support frame side plates, 2.5 and a nut group; 3. a sleeve 3.1, a sleeve body 3.2 and an end cover; 4. the device comprises a limiting device, 4.1 parts of a pin shaft support, 4.2 parts of a shaft sleeve, 4.3 parts of a pin shaft, 4.4 parts of a pin shaft end plate, 4.5 parts of a positioning bolt, 4.6 parts of a limiting rod frame support, 4.7 parts of a bolt group, 4.8 parts of an oil seal, 4.9 parts of an oil cup, 4.10 parts of a pressing plate, 4.11 parts of a long bolt group.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

Fig. 1 is a schematic structural view of a walking frame of a semi-crawler tractor according to the embodiment. As shown in figure 1, the walking frame of the semi-crawler tractor comprises a girder 1, a cross beam 2, a sleeve 3 and a limiting device 4. The girder 1 and the beam 2 are arranged in parallel and fixedly connected through two sleeves 3. The limiting device 4 is arranged above the cross beam 2. The running frame, a driving wheel, a guide wheel, a supporting wheel set, a tension wheel and a track of the tractor form a tractor running system together.

As shown in fig. 2, the girder 1 includes a girder body 1.1, a thrust wheel connecting plate 1.2, a guide wheel connecting plate 1.3, a sealing plate 1.4, a tensioning sleeve 1.5, a sleeve base 1.6, and a sleeve base weldment 1.7. The girder body 1.1 is used for bearing and connecting main parts of the travelling crane frame; the number of the supporting wheel connecting plates 1.2 is three, and the supporting wheel connecting plates are welded and fixed at the lower end of the girder body 1.1 at equal intervals and are used for connecting the supporting wheel groups; the guide wheel connecting plate 1.3 is welded and fixed at the right end of the girder body 1.1 and is used for connecting the guide wheel; the shrouding 1.4 welded fastening is in girder body 1.1 left end. The sealing plate 1.4 is of an inverted L-shaped structure, a vertical part of the sealing plate 1.4 is fixed at the left end of the girder body 1.1, a horizontal part is slightly obliquely fixed above the girder body 1.1 upwards, a tensioning sleeve 1.5 of a tensioning sleeve welding part is welded and fixed above the horizontal part of the sealing plate 1.4, and the direction of the tensioning sleeve 1.5 is consistent with that of the girder 1. One end of the tensioning sleeve 1.5 close to the limiting device 4 is fixed with a sleeve base 1.6, and a sleeve base welding part 1.7 is welded and fixed at the round hole of the sleeve base 1.6. The tensioning sleeve 1.5, the sleeve base 1.6 and the sleeve base welding piece 1.7 form a tensioning sleeve welding piece, are used for installing a tensioning support, a tensioning spring and the like, jointly form a tensioning buffer device and are connected with a tensioning wheel.

As shown in fig. 3, the beam 2 includes a beam body 2.1, a beam side plate 2.2, a support frame 2.3, a support frame side plate 2.4, and a nut group 2.5. The quantity of crossbeam curb plate 2.2 is two, welded fastening is respectively at the both ends of crossbeam body 2.1, support frame 2.3 welded fastening is in the top of crossbeam body 2.1 for driving frame crossbeam 2 and stop device 4's transitional coupling, the quantity of support frame curb plate 2.4 is two, welded fastening is respectively at the both ends of support frame 2.3, be equipped with four through-holes on the support frame 2.3, four welding nut of nut group 2.5 respectively with four through-hole welded fastening, be used for top stop device 4's installation.

As shown in fig. 4, the sleeve 3 includes a sleeve 3.1 and end caps 3.2, and both ends of the sleeve 3.1 are respectively welded and fixed with one end cap to form a hollow closed structure. During specific implementation, the girder 1 and the crossbeam 2 are respectively and correspondingly provided with two circular through holes along the length direction, and the two sleeves 3 respectively penetrate into the circular holes to weld and fix the girder 1 and the crossbeam 2. Girder 1 and crossbeam 2 are formed by the shaped steel welding, sleeve pipe 3 adopts the circular steel tube to make, can reduce cost, alleviates the weight of driving frame.

As shown in fig. 5 and 6, the limiting device 4 includes a pin shaft support 4.1, a shaft sleeve 4.2, a pin shaft 4.3, a pin shaft end plate 4.4, a positioning bolt 4.5, a limiting rod frame support 4.6, a bolt group 4.7, an oil seal 4.8, an oil cup 4.9, a pressure plate 4.10, and a long bolt group 4.11. The pin shaft support 4.1 is fixedly connected with the support frame 2.3 in the cross beam 2 through a bolt group 4.7, the shaft sleeve 4.2 is installed inside the pin shaft support 4.1, the limit rod frame support 4.6 is installed right above the pin shaft support 4.1, the pin shaft support 4.1 and the limit rod frame support 4.6 are hinged through a pin shaft 4.3 to realize relative swing, and the limit rod frame support 4.6 is axially overlapped with a pin shaft hole in the pin shaft support 4.1. The upper part of the limit rod support 4.6 is connected with a rear shaft shell of the tractor, and one side of the limit rod support 4.6, which is positioned in the length direction of the crossbeam 1, is connected with a tractor suspension mechanism. The arrangement of the limiting device can improve the smoothness of the whole machine, and the effect of preventing overturning is achieved by limiting the rotation of the half-track body.

The pin shaft 4.3 is vertical to the length direction of the cross beam 2, one end of the pin shaft 4.3 is provided with a pin shaft end plate 4.4, and the pin shaft end plate 4.4 is fixedly connected with a limiting rod frame support 4.6 through a positioning bolt 4.5; an oil cup 4.9 is arranged to penetrate through the pin end plate 4.4, and the oil cup 4.9 is communicated with an oil way of the pin 4.3 and used for keeping lubrication between the pin 4.3 and the shaft sleeve 4.2.

And oil seals 4.8 are respectively arranged at two ends of the pin shaft support 4.1, which are positioned in the shaft hole of the pin shaft 4.3. The quantity of oil blanket 4.8 is two, presses respectively to locate in inner wall step department, as sealing device, plays waterproof mud-proof effect in the tractor operation process. During specific implementation, the oil cup 4.9 is screwed into a center hole at one end of the pin shaft 4.3 and is used for injecting lubricating grease to ensure smooth and flexible relative movement between the pin shaft 4.3 and the shaft sleeve 4.2. The pressing plate 4.10 is arranged above the limiting rod support 4.6, and the limiting rod support 4.6 is fixedly connected with the rear axle shell of the tractor through the long bolt group 4.11.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, improvement and the like made within the spirit of the present invention shall be included in the scope of the protection of the claims of the present invention.

Claims

1. The utility model provides a driving frame of half track tractor which characterized in that: the device comprises a girder (1) and a beam (2) which are arranged in parallel, wherein the girder (1) and the beam (2) are fixedly connected through a plurality of sleeves (3), and a limiting device (4) is arranged above the beam (2);

the limiting device (4) comprises a pin shaft support (4.1) fixed at the upper end of the cross beam (2) and a limiting rod frame support (4.6) arranged on the pin shaft support (4.1), and the pin shaft support (4.1) and the limiting rod frame support (4.6) are hinged through a pin shaft (4.3) to realize relative swinging;

the upper part of the limiting rod support (4.6) is connected with a rear axle shell of the tractor, and one side of the limiting rod support (4.6) in the length direction of the crossbeam (1) is connected with a tractor suspension mechanism.

2. A traveling rack of a semi-crawler tractor according to claim 1, wherein: a tensioning sleeve welding piece used for connecting a tensioning wheel is fixed at one end of the crossbeam (1), a guide wheel connecting plate (1.3) used for connecting a guide wheel is fixed at the other end of the crossbeam (1), and a thrust wheel connecting plate (1.2) used for connecting a thrust wheel is fixed at the lower end of the crossbeam (1).

3. A traveling rack of a semi-crawler tractor according to claim 2, wherein: the number of the supporting wheel connecting plates (1.2) is three, and the supporting wheel connecting plates are fixed at the lower end of the crane frame girder body (1.1) at equal intervals.

4. A traveling rack of a semi-crawler tractor according to claim 1, wherein: the number of the sleeves (3) is two, two circular through holes are correspondingly formed in the crossbeam (1) and the crossbeam (2) along the length direction of the crossbeam respectively, and the sleeves (3) are fixedly welded with the crossbeam (1) and the crossbeam (2) through the through holes.

5. A traveling rack of a semi-crawler tractor according to claim 1, wherein: the crossbeam (1) and the crossbeam (2) are both formed by welding profile steels, and the sleeve (3) is made of round steel tubes; the sleeve (3) comprises a sleeve body (3.1) and end covers (3.2) welded and fixed at two ends of the sleeve body (3.1), and the sleeve body (3.1) and the end covers (3.2) enclose a hollow closed structure.

6. A traveling rack of a semi-crawler tractor according to claim 1, wherein: a supporting frame (2.3) is fixed above the cross beam (2), and a limiting device (4) is installed on the cross beam (2) through the supporting frame (2.3).

7. A carriage for a semi-crawler tractor as defined in claim 6, wherein: the pin shaft (4.3) is vertical to the length direction of the cross beam (2), one end of the pin shaft (4.3) is provided with a pin shaft end plate (4.4), and the pin shaft end plate (4.4) is fixedly connected with a limiting rod frame support (4.6) through a positioning bolt (4.5);

an oil cup (4.9) is arranged to penetrate through the pin shaft end plate (4.4), and the oil cup (4.9) is communicated with an oil way of the pin shaft (4.3) and used for keeping the pin shaft (4.3) and the shaft sleeve (4.2) lubricated.

8. A frame as claimed in claim 7, wherein: and oil seals (4.8) are respectively arranged at two ends of the pin shaft support (4.1) which are positioned in the shaft hole of the pin shaft (4.3).

9. A frame as claimed in claim 8, wherein: the upper end of the limiting rod frame support (4.6) is connected with a pressing plate (4.10) through a vertical long bolt group (4.11), and the rear axle shell of the tractor is fixedly connected with the limiting rod frame support (4.6) through the long bolt group (4.11) and the pressing plate (4.10).

10. A traveling rack of a semi-crawler tractor according to claim 2, wherein: the tensioning sleeve pipe seam piece is fixed in the top of girder (1), and the tensioning sleeve pipe seam piece includes tensioning sleeve (1.5) unanimous with girder (1) direction, and the one end that tensioning sleeve (1.5) are close to stop device (4) is fixed with sleeve base (1.6), is fixed with sleeve base welding spare (1.7) on sleeve base (1.6).