CN209585149U - A kind of dozer - Google Patents

Abstract

The utility model relates to a kind of dozers, belong to engineering mechanical device technical field, including main shovel body, crossbeam and girder, the main shovel body includes ejector dozer, bent plate and side seal board afterwards, the ejector dozer and rear bent plate are variform arcuate structure, the concave surface of ejector dozer and rear bent plate is toward the direction, and the affixed front-back for forming main shovel body of upper and lower sides, side seal board is located at two sides of main shovel body, bent plate is open-topped reverse trapezoid shape after described, two symmetrical location holes are set on the bottom edge of bent plate after described, the girder is two, two girder one end are inserted into location hole respectively and are welded to connect with location hole, the head of girder resists ejector dozer, crossbeam is welded to connect between two girders, two pairs of stiffening plates up and down are welded to connect after described between bent plate and crossbeam；The girder is tubular structure.The excessive intensity of the receiving avoided and lead to weld cracking；Girder is tubular structure simultaneously, while improving intensity, can save material.

Description

A kind of dozer

Technical field

The utility model belongs to engineering mechanical device technical field, and in particular to a kind of dozer.

Background technique

Excavator is a kind of important engineering machinery, and dozer is a kind of important structure for small digging, because being Small tonnage excavator so the presence of dozer can increase the stability of work, while also can increase operation function.Therefore rationally Bulldozer shovel structure can guarantee the prolonged use service life, while also can increase job area appropriate.

Crossbeam is a weldment, plate thickness and it is deep also need cold rolling bending, also need bevel to weld, therefore process Process becomes cumbersome, increases the difficulty of processing, and process is made to become complicated, it is also necessary to which a large amount of weld seams are filled up.

Bent plate is welding form after girder and dozer, only intensity is maintained by weld seam, under the conditions of big duty work It works long hours and may result in weld cracking.

Girder is hardened structure, can expend more materials under conditions of can bear same stress.

Utility model content

For above-mentioned problems of the prior art, a purpose of the utility model is to provide a kind of dozer.

In order to solve the above technical problems, the technical solution of the utility model are as follows:

A kind of dozer, including main shovel body, crossbeam and girder, the main shovel body include ejector dozer, rear bent plate and side seal Plate, the ejector dozer and rear bent plate are variform arcuate structure, the concave surface of ejector dozer and rear bent plate toward the direction, and And the affixed front-back for forming main shovel body of upper and lower sides, side seal board are located at two sides of main shovel body, the rear bent plate is opened for top Mouthful reverse trapezoid shape, it is described after bent plate bottom edge on be arranged two symmetrical location holes, the girder be two, two girders One end is inserted into location hole respectively and is welded to connect with location hole, and the head of girder resists ejector dozer, and crossbeam is located at two girders Between be welded to connect, two pairs of stiffening plates up and down are welded to connect between bent plate and crossbeam after described；

The girder is tubular structure.

The girder with dozer of the application is that plug-in type connect compared with the prior art, not only leans on crossbeam and girder in this way The weld seam of weld seam, girder and rear bent plate is withstood forces, while the section of girder and bent plate can also bear a part of power, the receiving avoided Excessive intensity and lead to weld cracking；Girder improves the same of intensity instead of existing plate structure for tubular structure simultaneously When, material can be saved.

Preferably, the cross section of the tubular structure is rectangle.

It is further preferred that one end that bent plate is in contact with ejector dozer after the girder insertion is arc surface, the circular arc Face is bonded with the inner surface of ejector dozer.

The girder of hardened structure is changed to quarter bend state, both can be reduced the utilization of material, while can also reduce maximum stress value, Leading portion radian and ejector dozer radian cooperate.

Preferably, the crossbeam is cylindrical structure.

The crossbeam of the prior art is a weldment, plate thickness and it is deep also need cold rolling bending, also need out slope to weld Mouthful, therefore manufacturing procedure becomes cumbersome, increases the difficulty of processing, and process is made to become complicated, it is also necessary to a large amount of weld seams come It fills up.The beam structure of the application can reduce process, it is not necessary to be welded, be avoided because weld strength not enough generates again Crossbeam cracking.

It is further preferred that two parallel otic placodes are arranged far from rear bent plate side in the cylindrical structure of the crossbeam.

Preferably, the stiffening plate is the square plate of U-shaped opening, and each pair of stiffening plate is made of two stiffening plates, and two add The both ends of the U-shaped opening of strong plate are connected to each other, and the side of square plate is welded with the side of the basal edge side of rear bent plate, crossbeam respectively to be connected It connects, the bottom edge of two square plates is connect with Main Girder Welding respectively.

Stiffening plate compared with the prior art, the application increase the length of dozer stiffening plate, can increase weld seam in this way Sectional area, largely avoided intensity it is inadequate caused by weld cracking.

It is further preferred that upper and lower two pairs of stiffening plates are parallel to each other.

Preferably, described two girders are parallel to each other.

Preferably, the crossbeam is parallel with stiffening plate.

Preferably, the lower part of the ejector dozer is fixedly connected with cutting plate.

The utility model has the beneficial effects that

The structure of crossbeam is changed to the form of cylinder by the application, does not need interior welds；The length for increasing stiffening plate, adds Make to dock by weld seam between two stiffening plates after length, therefore increase section of weld joint product, increases the intensity of entire dozer And load-bearing capacity；

Manufacturing procedure can be reduced first, the bending and welding of girder is reduced, makes process summary, become processing It is simple and fast.The utilization of material is equally decreased while proof strength, reduces costs more economicalization.Such structure The loss of weight about 70kg compared with plate structure reduces about 1000 yuan of cost, and domestic digging machine sales volume was 1 year about 80,000 average in recent years Platform, small digging accounting 40%, therefore 1 year about 32,000,000 yuan of escapable cost.

The structure of the dozer of the application design realizes under the premise of save the cost keeps dozer more stable.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.

Fig. 1 is the structure chart of the dozer of the application；

Fig. 2 is the amplification assumption diagram of cutting plate；

Fig. 3 is rear bending plate figure；

Fig. 4 is the structure chart of crossbeam；

Fig. 5 is the structure chart of stiffening plate；

Fig. 6 is the structure chart of girder；

Fig. 7 is the side view of girder；

1, crossbeam, 2, rear bent plate, 3, stiffening plate, 4, girder, 5, otic placode, 6, cutting plate, 7, ejector dozer, 8, location hole, 9, Arcwall face, 10, side seal board.

Specific embodiment

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.

Below with reference to embodiment, the present invention will be further described

As shown in Figure 1, Figure 3, a kind of dozer, including main shovel body, crossbeam 1 and girder 4, the main shovel body includes ejector dozer 7, rear bent plate 2 and side seal board 10, the ejector dozer 7 and rear bent plate 2 are variform arcuate structure, ejector dozer 7 and rear curved Toward the direction, and the affixed front-back for forming main shovel body of upper and lower sides, side seal board 10 are located at the two of main shovel body for the concave surface of plate 2 A side, the rear bent plate 2 is open-topped reverse trapezoid shape, and setting two is symmetrically determined on the bottom edge of the rear bent plate 2 Position hole 8, the girder 4 are two, and two 4 one end of girder are inserted into location hole 8 respectively and are welded to connect with location hole, girder Head resists ejector dozer, and crossbeam 1 is welded to connect between two girders 4, is welded to connect between bent plate 2 and crossbeam 1 after described Upper and lower two pairs of stiffening plates 3；

Location hole 8 after one end insertion of girder 4 on bent plate, girder in the prior art are not introduced into rear bent plate, That the direct outer surface with rear bent plate is welded to connect, the girder 4 of the application later bent plate 2 enter rear 2 ejector dozer 7 of bent plate at Cavity, and 4 ends of girder resist 7 inner surface of ejector dozer, so not only by crossbeam, the weld seam of girder, girder and rear bent plate Weld seam endurance, while the section of girder and bent plate can also bear a part of power, the excessive intensity of the receiving avoided and cause to weld Seam cracking；Girder while improving intensity, can save material instead of existing plate structure for tubular structure simultaneously.

The girder 4 is tubular structure.

The tubular structure is internally hollow, solid plate structure compared with the prior art, proof strength it is same When, save material.

As shown in fig. 6, the cross section of the tubular structure is rectangle.

As shown in fig. 7, one end that bent plate 2 is in contact with ejector dozer 7 after the insertion of girder 4 is arc surface 9, the circular arc Face 9 is bonded with the inner surface of ejector dozer.

The girder of hardened structure is changed to quarter bend state, both can be reduced the utilization of material, while can also reduce maximum stress value, Arc surface is bonded with ejector dozer radian, can accept the endurance of a part of ejector dozer, while this connection type stable connection.

As shown in figure 4, the crossbeam 1 is cylindrical structure.

The crossbeam of the prior art is a weldment, i.e., is inherently a weldment, plate thickness and deep also cold rolling is needed to roll over It is curved, bevel is also needed in order to weld, therefore manufacturing procedure becomes cumbersome, increases the difficulty of processing, become process It is complicated, it is also necessary to which that a large amount of weld seams are filled up.The beam structure of the application can reduce process, it is not necessary to be welded, be kept away again Exempt from not enough to generate crossbeam cracking because of weld strength.

As shown in Figure 1, two parallel otic placodes 5 are arranged far from rear bent plate side in the cylindrical structure of the crossbeam 1.

As shown in figure 5, the stiffening plate is the square plate of U-shaped opening, each pair of stiffening plate is made of two stiffening plates 3, two The both ends of the U-shaped opening of a stiffening plate 3 are connected to each other, the side of the square plate side with the basal edge side of rear bent plate 2, crossbeam 1 respectively It is welded to connect, the bottom edge of two square plates is welded to connect with girder 4 respectively.

The both ends of two U-shaped openings of the stiffening plate and are welded to connect to connecting, and bonding strength is improved, Existing stiffening plate length is smaller, and there is no to connecting between two stiffening plates.

Upper and lower two pairs of stiffening plates 3 are parallel to each other.

As shown in Fig. 2, the lower part of the ejector dozer 7 is fixedly connected with cutting plate 6.The cutting plate 6 and the welding of ejector dozer 7 connect It connects.

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of dozer, it is characterised in that: including main shovel body, crossbeam and girder, the main shovel body includes ejector dozer, rear bent plate And side seal board, the ejector dozer and rear bent plate are variform arcuate structure, the concave surface of ejector dozer and rear bent plate is towards one A direction, and the affixed front-back for forming main shovel body of upper and lower sides, side seal board are located at two sides of main shovel body, the rear bent plate For open-topped reverse trapezoid shape, it is described after bent plate bottom edge on two symmetrical location holes are set, the girder is two, Two girder one end are inserted into location hole respectively and are welded to connect with location hole, and the head of girder resists ejector dozer, and crossbeam is located at It is welded to connect between two girders, is welded to connect two pairs of stiffening plates up and down between bent plate and crossbeam after described；

The girder is tubular structure.

2. dozer according to claim 1, it is characterised in that: the cross section of the tubular structure is rectangle.

3. dozer according to claim 2, it is characterised in that bent plate is in contact with ejector dozer after the girder insertion One end is arc surface, and the arc surface is bonded with the inner surface of ejector dozer.

4. dozer according to claim 1, it is characterised in that: the crossbeam is cylindrical structure.

5. dozer according to claim 1, it is characterised in that: the separate rear bent plate side of the cylindrical structure of the crossbeam Two parallel otic placodes are set.

6. dozer according to claim 1, it is characterised in that: the stiffening plate is the square plate of U-shaped opening, Mei Duijia Strong plate is made of two stiffening plates, and the both ends of the U-shaped opening of two stiffening plates are connected to each other, the side of square plate respectively with rear bent plate Basal edge side, crossbeam side be welded to connect, the bottom edge of two square plates is connect with Main Girder Welding respectively.

7. dozer according to claim 1, it is characterised in that: upper and lower two pairs of stiffening plates are parallel to each other.

8. dozer according to claim 1, it is characterised in that: described two girders are parallel to each other.

9. dozer according to claim 1, it is characterised in that: the crossbeam is parallel with stiffening plate.

10. dozer according to claim 1, it is characterised in that: the lower part of the ejector dozer is fixedly connected with cutting plate.