WO2019100521A1

WO2019100521A1 - Tractor cab

Info

Publication number: WO2019100521A1
Application number: PCT/CN2017/119405
Authority: WO
Inventors: 张鹏; 廖文; 安冬冬; 文剑竹
Original assignee: 中联重机股份有限公司
Priority date: 2017-11-24
Filing date: 2017-12-28
Publication date: 2019-05-31
Also published as: CN108100055A

Abstract

A tractor cab, comprising a cab skeleton and a door and window structure. The cab skeleton comprises a first upright post (1), a second upright post (2), a third upright post (3), and a fourth upright post (4). The first upright post, the second upright post, the third upright post, and the fourth upright post are distributed around the cab to form a support frame structure of the cab skeleton. According to the cab, a blind spot of an existing tractor cab is eliminated, and product costs are reduced; moreover, sealing of the product can be improved, noise can be reduced, and the shape is improved; the problem of stress of the cab is resolved, high strength and strong bending and torsion resistance are provided, and the strength of the cab, the rollover prevention and object falling prevention performances, and the product appearance are improved.

Description

Tractor cab

Technical field

The invention belongs to the technical field of tractors, and in particular relates to a tractor cab.

Background technique

With the improvement of the value of land cultivation and the improvement of farming efficiency, the traditional farming methods and manipulation methods have also undergone tremendous changes, mainly as follows:

A. The farming method is changed from traditional single-type farming to compound-type operation. The operation mode is changed from single-handle operation to multi-handle and electronic control. The proportion of occupation space is increased, resulting in the reduction of personnel manipulation and activity area. To ensure long-term operation under the premise of comfort and avoid the need for fatigue, it is necessary to completely optimize the overall layout of the cockpit from ergonomics and other aspects, and change the traditional sitting posture;

B. The composite operation increases the observation surface of the vehicle condition, the ground condition, the machine tool, etc., and the requirements for the visual field are extremely high on the basis of ensuring safety and high efficiency. The blind zone caused by the six-column cab in the traditional sense seriously affects the work safety. coefficient.

The above-mentioned farming method makes the existing agricultural machinery unable to meet the problems of wide vision, high sealing and firm structure of the cab.

Based on the technical problems existing in the above-mentioned tractor cab, there is no relevant solution; therefore, it is urgent to find an effective solution to solve the above problems.

Summary of the invention

The object of the present invention is to provide a tractor cab for the deficiencies in the above technology, which aims to solve the problem that the vision of the existing tractor cab is not wide.

The present invention provides a tractor cab including a cab skeleton and a door and window structure; the cab skeleton includes a first column, a second column, a third column, and a fourth column; the first column, the second column, the third column, and the The four pillars are distributed around the cab to form a support frame structure for the cab skeleton.

Further, the top ends of the first column and the second column are fixedly connected by the top right ring beam; the top ends of the first column and the fourth column are fixedly connected by the front windshield upper beam; the top ends of the fourth column and the third column pass the top cover The left ring beam is fixedly connected; the top ends of the second column and the third column are fixedly connected by the top cover rear ring beam.

Further, the cab skeleton further includes a left door lower beam, a right door lower beam, a right fender ring beam and a left fender ring beam; one end of the left door lower beam is fixedly connected with the bottom end of the fourth column, and the other end and the left block are One end of the mud plate beam is fixedly connected, and the other end of the left fender ring beam is fixedly connected with the bottom end of the third column; one end of the lower door of the right door is fixedly connected with the bottom end of the first column, and the other end and the right fender are connected One end of the ring beam is fixedly connected, and the other end of the right fender ring beam is fixedly connected with the bottom end of the second column.

Further, the right fender ring beam is curved and disposed between the first column and the right door lower beam to form a cab door frame structure; the left fender ring beam is curved and disposed on the third column and Between the left door and the lower beam to form the cab door frame structure.

Further, the cab skeleton further includes a rear window lower beam; the first column and the fourth column bottom end are connected by a front windshield lower beam; the rear window lower beam is fixedly connected between the second column and the third column.

Further, the cab skeleton further includes a front panel and a front windshield middle beam; the front windshield middle beam is disposed between the first pillar and the fourth pillar; and the front panel is disposed between the front windshield middle beam and the front windshield lower beam.

Further, the cab skeleton further includes a rear bracket and a bottom pole; the rear bracket includes a first rear bracket and a second rear bracket; the bottom pole includes a first bottom rod and a second bottom rod; and the first bottom rod is fixed at one end to the left door lower beam The other end of the first rear bracket is fixedly connected with the third post, and the other end of the first rear bracket is fixedly connected with the fixing base.

Further, the first column, the second column, the third column, and the fourth column are all made of a shaped tube material; the first column, the second column, the third column, and the fourth column are both hollow structures; the first column, the first column The four columns have the same cross section; the second column and the third column have the same cross section.

Further, the right fender ring beam, the left fender ring beam, the left door lower beam, and the right door lower beam are all made of shaped pipe material; the right fender ring beam, the left fender ring beam, the left door lower beam, The right door lower beam is a hollow structure; and the right fender ring beam, the left fender ring beam, the left door lower beam, and the right door lower beam are all L-shaped.

Further, the top cover right ring beam, the top cover rear ring beam, the top cover left ring beam, the rear window lower beam are all sheet metal stamping; the front windshield is made of rectangular tube, square tube, angle steel or channel steel. .

By adopting the above technical solution, not only the visual blind zone of the existing tractor cab can be eliminated, the product cost can be reduced, but also the domestic product sealing, noise reduction and upgrade modeling can be improved; and the tractor cab provided by the invention can solve the problem of the cab stress. Improve the appearance quality of the product.

DRAWINGS

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

The invention will be further described below in conjunction with the accompanying drawings:

1 is a schematic structural view of a tractor cab skeleton according to the present invention;

2 is a schematic structural view of a tractor cab according to the present invention;

3 is a schematic structural view of a tractor cab of the prior art;

Figure 4 is a top plan view of a tractor cab structure of the present invention;

Figure 5 is a top plan view of a prior art cab structure of a tractor;

Figure 6 is a front elevational view showing the skeleton structure of a tractor cab according to the present invention;

Figure 7 is a side view of a tractor cab skeleton structure of the present invention;

Figure 8 is a cross-sectional view taken along line A-A of Figure 5;

Figure 9 is a cross-sectional view taken along line B-B of Figure 5;

Figure 10 is a cross-sectional view taken along line C-C of Figure 6;

Figure 11 is a cross-sectional view taken along line D-D of Figure 6;

Figure 12 is a cross-sectional view taken along line E-E of Figure 5;

Figure 13 is a cross-sectional view of a front crossbar of a tractor cab structure of the present invention;

Figure 14 is a cross-sectional view of the lower windshield of the windshield of the tractor cab structure of the present invention;

Figure 15 is a cross-sectional view taken along line F-F of Figure 5;

In the figure: 1, the first column; 2, the second column; 3, the third column; 4, the fourth column; 5, the right fender ring beam; 6, the rear window lower beam; 7, the left fender ring Beam; 8, front windshield upper beam; 9, top cover right ring beam; 10, top cover rear ring beam; 11, top cover left ring beam; 12, front windshield middle beam; 13, left door lower beam; ; 15, the handle frame; 16, the first rear bracket; 17, the first bottom rod; 18, the welding point; 19, the front windshield lower beam; 20, the side door glass; 21, the rear side glass.

Detailed ways

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

As shown in FIGS. 1 to 15, the present invention provides a tractor cab including a cab skeleton and a door and window structure; wherein the cab skeleton includes a first pillar 1, a second pillar 2, a third pillar 3, and a fourth pillar 4; the first column 1, the second column 2, the third column 3 and the fourth column 4 are distributed around the cab to form a four-column support frame structure of the cab skeleton; as shown in FIG. 4 and FIG. 5, four The business angle a formed by the column structure in the tractor seat is wider than the angle of view b of the existing six-column structure. Therefore, it can solve the problem that the left and right sides of the existing tractor cab are blocked by the column, and there is a large blind zone, which affects the working vision problem; further The door and window structure comprises a front windshield, side door glass 20 on the left and right sides, and a rear side glass 21; the versatility of the profile, the first column and the fourth column 4 in front of the cab adopt the same profile; the second after the cab The column 2 and the third column 3 adopt the same profile; the top cover left ring beam 11 and the top cover right side are relatively larger, the larger the door glass is, the greater the gravity generated by its own weight, and the greater the torque generated by the opening of the door glass. The greater the stress, the too small the door glass, the effect of wide field of view, and the appearance of the cab; the greater the curvature of the rear window, the more complicated the molding process, the lower the product qualification rate, the curvature of the rear window glass. Too small, directly leading to the design size of the door glass is too large, increasing the process difficulty and self-explosion rate of the door glass; in this scheme, through the analysis of the process difficulty of the left and right door glass and the rear side glass, the overall adoption of the four-column structure, through the The optimal arrangement of the three columns and the second column, reasonably balance the design and process difficulties of the door glass and the rear window glass, and solve the difficult problems of the left and right door glass and the rear side glass, such as the strength of the force, self-explosion, and low qualification rate; Further, the front fourth pillar 4, the top left ring beam 11, the third rear pillar 3, the left fender ring beam 7 and the left lower beam 13 form a welding assembly, and the first pillar in front of the cab 2. The top cover right ring beam 9, the rear rear column 2, the right fender ring beam 5 and the right door lower beam form another welding assembly; and the front of the cab is adjusted by adjusting the front windshield middle beam 12 and the front windshield The width of the beam 8, the top cover rear ring beam 10 and the rear window lower beam 6 realize the change of the width of the cab, and maximize the versatility of the serialized parts; the use of the above four column structure can not only eliminate the visual blind zone and reduce the product cost; Moreover, it can improve the sealing, noise reduction and upgrade modeling of domestic products.

Preferably, in combination with the above solution, as shown in FIG. 1 , FIG. 6 and FIG. 7 , in the present embodiment, the top ends of the first upright 1 and the second upright 2 are fixedly connected by the top cover right ring beam 9; the first upright 1 and The top end of the fourth column 4 is fixedly connected by the front windshield upper beam 8; the top ends of the fourth column 4 and the third column 3 are fixedly connected by the top left ring beam 10; the top ends of the second column 2 and the third column 3 pass through the top cover The rear ring beam 9 is fixedly connected; thereby forming a top cover supporting structure, the top cover supporting structure is mounted with a top cover or a top cover glass at the upper end, and is provided with a skylight exhaust.

Preferably, in combination with the above solution, as shown in FIG. 1 , in the embodiment, the cab skeleton further includes a left door lower beam 13 , a right door lower beam, a right fender ring beam 5 and a left fender ring beam 7; One end of the beam 13 is fixedly connected to the bottom end of the fourth column 4, the other end of which is fixedly connected to one end of the left fender ring beam 7, and the other end of the left fender ring beam 7 is fixedly connected with the bottom end of the third column 3. One end of the right door lower beam is fixedly connected with the bottom end of the first column 1, and the other end is fixedly connected with one end of the right fender ring beam 5, and the other end of the right fender ring beam 5 and the bottom end of the second column 2 Fixed connection; in this embodiment, by analyzing the force of the four-column structure, the right fender ring beam 5 and the left fender ring beam 7 are symmetrically arranged into an arc structure to form a cab door frame structure, and the right block The mud plate ring beam 5 is disposed between the first column 1 and the right door lower beam; the left fender ring beam 7 is disposed between the third column 3 and the left door lower beam 13 to form a cab door frame structure; Reasonable design, improve the versatility of parts and reduce the investment of molds.

Preferably, in combination with the above solution, as shown in FIG. 1, in the embodiment, the cab skeleton further includes a rear window lower beam 6, a front panel 14 and a front windshield middle beam 12; and a bottom end of the first column 1 and the fourth column 4 The front windshield lower cross member 6 is fixedly connected between the second upright column 2 and the third upright column 6; the front windshield middle cross member 12 is disposed between the first upright column 1 and the fourth upright column 4; the front panel 14 is disposed between the front windshield middle beam 12 and the front windshield lower beam 19 for connection with other components of the tractor.

Preferably, in combination with the above solution, as shown in FIG. 1 , in the embodiment, the cab skeleton further includes a rear bracket and a bottom pole; the rear bracket includes a first rear bracket 16 and a second rear bracket; and the bottom pole includes a first bottom pole 17 and a second bottom rod; one end of the first bottom rod 17 is fixedly connected with the left door lower beam 13 and the other end thereof is fixedly connected with the fixing seat; one end of the first rear bracket 16 is fixedly connected with the third column 3, and the other end is fixed The fixed connection of the seat; the fixed seat and the tractor body are fixedly connected; the cab structure adopted by the above scheme is more compact and stable, and is convenient to be installed and fixed.

Preferably, in combination with the above solution, as shown in FIG. 1 to FIG. 15 , in the embodiment, the first upright 1 , the second upright 2 , the third upright 3 , and the fourth upright 4 are made of a shaped tube material; The first column 1, the second column 2, the third column 3, and the fourth column 4 are all hollow structures, and the smooth transition of the full surface ensures the accuracy and precision of product development; as shown in Fig. 8, the first column 1 The fourth column 4 has the same cross section, and both are asymmetrical concave structures on both sides; as shown in FIG. 9, the second column 2 and the third column 3 have the same cross section, and each has a symmetrical concave structure, and the two sides are respectively It has a symmetrical L-shaped chamfer; in this scheme, through the analysis of the technical difficulty of the left and right door columns, the design and technical difficulties of the cab support structure are reasonably balanced, and the strength of the cab skeleton, self-explosion, low qualification rate, etc. are solved. Difficulties in the process.

Preferably, in combination with the above solution, as shown in FIG. 1 to FIG. 15, in the present embodiment, the right fender ring beam 5, the left fender ring beam 7, the left door lower beam 13, and the right door lower beam are all shaped pipe materials. Made; the top cover right ring beam 9, the top cover rear ring beam 10, the top cover left ring beam 11, the rear window lower beam 6 are all sheet metal stamping; and, the right fender ring beam 5, the left fender The ring beam 7, the left door lower beam 13, and the right door lower beam are hollow structures; as shown in Fig. 12, the cross section of the right fender ring beam 5, the left fender ring beam 7, the left door lower beam 13, and the right door lower beam L-shaped; as shown in Figure 10, the top cover rear ring beam 10 has an L-shaped cross section and is provided with solder joints 18; the rear window lower cross member 6 has an L-shaped cross section and is provided with solder joints 18; The front windshield middle beam 12 has a square cross section and is also provided with a solder joint 18; the front windshield lower beam 19 has a square cross section; by adopting the above scheme, the cross section and shape of the shaped pipe and the section and shape of the sheet metal part are rationally designed. The front windshield, the door glass and the rear window glass are relatively balanced with the cab skeleton mounting surface to ensure a uniform gap, thereby achieving a lifting drive. The sealing effect of the chamber; by adopting the design idea of combining the special-shaped pipe and the sheet metal stamping parts, the connection relationship between the sample pieces is ensured (such as ensuring the gap uniformity, reducing the surface difference between the surface and the surface, etc.), thereby achieving the appearance of the product. The effect of quality; through the reasonable arrangement of the welding process, the solder joints are designed on the non-design surface or the joint of the sample to reduce the exposed solder joints, thereby achieving the effect of improving the appearance quality of the product; The technical difficulty analysis of each beam of the frame skeleton, reasonable balance of the design and technical difficulties of the cab support structure, can also solve the difficult problems of the cab skeleton strength, self-explosion, low qualification rate, etc.; further, compared with ordinary profiles (such as Rectangular tube, square tube, angle steel, etc.) In this scheme, the special-shaped tube has the advantages of large force area and large angle, so it has high strength, strong bending and torsion resistance, can improve the strength of the cab, prevent the turning and The performance of the falling object is superior, the field of view is expanded, the material is saved, and since the shape of the shaped pipe is different, a special mold and tooling are required. The precision of the cab can be ensured, so the frame of the cab after molding is relatively fine, the dimensional accuracy is high, the cab tightness is ensured, and the noise reduction effect is very obvious. By using the special-shaped pipe material, the product strength is improved, and the product is improved in bending resistance and resistance. Twisting ability to improve the product's ability to prevent rollover and prevent falling objects, thereby improving product safety.

Preferably, in combination with the above solution, as shown in FIG. 1 to FIG. 15, in the present embodiment, the top cover right ring beam 9, the top cover rear ring beam 10, the top cover left ring beam 11, and the rear window lower beam 6 are all 钣Gold stamping molding; the cab skeleton top cover rear beam 10 needs to withstand sufficient pressure (preventing turning and falling), according to the design input requirements, increase the upper surface area of the beam, and adopt the stepped structure to design the beam rear end structure, which not only increases the The force area improves the strength of the sample itself, and also ensures the design accuracy of the sealing structure of the rear window glass; the lower beam 6 of the rear frame of the cab skeleton has to withstand sufficient pressure (preventing turning), according to the design input requirements, after the beam is enlarged The end area adopts a stepped structure to design the upper end structure, which not only increases the force area, but also improves the strength of the sample itself, and also ensures the design precision of the sealing structure of the rear window glass; the horizontal windshield on the front windshield is a rectangular tube, a square tube, an angle steel or Made of channel steel; directly adopt national standard profiles (such as rectangular tubes, square tubes, angle steels, channel steels, etc.), no special customization is required, the structure is relatively simple, and the requirements for molds during forming and bending are weak. Reduce the cost of upfront investment.

By adopting the above technical solution, not only the visual blind zone of the existing tractor cab can be eliminated, the product cost can be reduced, but also the sealing, noise reduction and upgrade modeling of the domestic product can be improved; and the tractor cab provided by the invention can solve the problem of the cab stress It has the characteristics of high strength, strong bending resistance and strong torsion resistance. It improves the strength of the cab, prevents the turning and falling property from being superior, and improves the appearance quality of the product.

The above is only a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention by using the above-mentioned technical contents, or modify equivalent embodiments of equivalent changes without departing from the scope of the technical solutions of the present invention. . Therefore, any modification, equivalent changes, and modifications made to the above embodiments in accordance with the techniques of the present invention are within the scope of the present technical solutions.

Claims

A tractor cab, comprising: a cab skeleton and a door and window structure; the cab skeleton includes a first pillar, a second pillar, a third pillar, and a fourth pillar; the first pillar, the second pillar A pillar, the third pillar, and the fourth pillar are distributed around the cab to form a support frame structure of the cab skeleton.
The tractor cab according to claim 1, wherein the top ends of the first uprights and the second uprights are fixedly connected by a top cover right ring beam; the top ends of the first uprights and the fourth uprights The top end of the fourth upright and the third upright are fixedly connected by a top cover left ring beam; the top ends of the second upright and the third upright are fixed by a top cover rear ring beam connection.
The tractor cab according to claim 1, wherein the cab skeleton further comprises a left door lower beam, a right door lower beam, a right fender ring beam and a left fender ring beam; and the left door lower beam end Fixedly connected to the bottom end of the fourth column, the other end of which is fixedly connected to one end of the left fender ring beam, and the other end of the left fender ring beam is fixed to the bottom end of the third column One end of the right door lower beam is fixedly connected to the bottom end of the first column, and the other end is fixedly connected to one end of the right fender ring beam, and the other end of the right fender ring beam is The bottom end of the second column is fixedly connected.
The tractor cab according to claim 3, wherein the right fender ring beam is curved and disposed between the first upright and the right lower door cross member to form a cab door frame structure; The left fender ring beam is curved and disposed between the third upright and the left lower door beam to form a cab door frame structure.
The tractor cab according to claim 1, wherein the cab skeleton further comprises a rear window lower beam; the first column and the fourth column bottom end are connected by a front windshield lower beam; The lower window beam is fixedly coupled between the second upright and the third upright.
The tractor cab according to claim 5, wherein the cab skeleton further comprises a front panel and a front windshield middle beam; the front windshield middle beam is disposed on the first pillar and the fourth pillar The front panel is disposed between the front windshield middle beam and the front windshield lower beam.
The tractor cab of claim 3, wherein the cab skeleton further comprises a rear bracket and a bottom pole; the rear bracket includes a first rear bracket and a second rear bracket; the bottom pole includes the first a bottom rod and a second bottom rod; one end of the first bottom rod is fixedly connected to the left door lower beam, and the other end is fixedly connected with the fixing seat; one end of the first rear bracket is fixedly connected with the third column, The other end is fixedly connected to the fixing base.
The tractor cab according to any one of claims 1 to 7, wherein the first column, the second column, the third column, and the fourth column are made of a shaped tube material. The first upright, the second upright, the third upright, and the fourth upright are both hollow structures; the first upright and the fourth upright are the same in cross section; the second upright and the The third column has the same cross section.
The tractor cab according to any one of claims 3 to 4, wherein the right fender ring beam, the left fender ring beam, the left door lower beam, and the right door lower beam are both The right fender ring beam, the left fender ring beam, the left door lower beam, the right door lower beam are hollow structures; and the right fender ring beam The cross section of the left fender ring beam, the left door lower beam, and the right door lower beam are all L-shaped.
The tractor cab according to claim 2, wherein the top cover right ring beam, the top cover rear ring beam, the top cover left ring beam, and the rear window lower beam are all sheet metal stamping Forming; the front windshield is made of a rectangular tube, a square tube, an angle steel or a channel steel.