A bulldozer frame assembly including wing plate structure for a bulldozer

Abstract

The utility model relates to bulldozer technical field, concretely relates to a bulldozer frame assembly containing wing plate structure for bulldozer, through the bottom of the front end part of wing plate subassembly is fixed on the mounting platform of main frame through bolt, the rear end oil tank part of wing plate subassembly is fixed on the side plate of main frame through first fastener, such double point fixed mode of front bottom and rear side face, the total load of wing plate and its bearing component is dispersed to the mounting platform and side face of main frame, changes the stress mode of bolt in prior art that bears radial shearing force alone, makes bolt mainly bear axial tension, gives full play to the tensile advantage of bolt, greatly reduces bolt fatigue damage risk, can simultaneously select conventional specification bolt, reduces manufacturing cost and assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer technology, specifically to a bulldozer frame assembly with a wing plate structure. Background Technology

[0002] As a core load-bearing structural component of the bulldozer, the installation stability of the bulldozer blades directly affects the bulldozer's operational safety and service life. In the structural design of bulldozers, heavy functional components such as fuel tanks and hydraulic oil tanks are usually directly assembled on the blades, resulting in a significant increase in the total weight of the blades and their accessories.

[0003] In the existing technology, the installation method of bulldozer wing plates and bulldozer main frame generally adopts a single side bolt fixing structure, that is, the side of the wing plate is directly fixed to the side of the main frame by fixing bolts. This installation method will cause the entire weight of the wing plate and its load-bearing components to be directly converted into the radial shear force borne by the fixing bolts. Since the mechanical properties of the bolts determine that their shear resistance is much lower than their tensile resistance, in order to meet the load-bearing strength requirements, the existing technology has to use larger size bolts for fixing. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a bulldozer frame assembly with a wing plate structure for bulldozers.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model discloses a bulldozer frame assembly with a wing plate structure, including a main frame and a wing plate assembly mounted on the main frame. The wing plate assembly includes wing plates, and the wing plates include a left wing plate and a right wing plate. The main frame includes a left main side plate and a right main side plate. Mounting platforms are respectively installed on the inner surfaces of the left and right main side plates. The bottoms of the left and right wing plates are fixed to the mounting platforms with bolts. Each wing plate includes a profile plate and a second mounting plate mounted on the profile plate. The profile plate includes a base plate and a bending plate. The bending plate is perpendicularly connected to the base plate. The second mounting plate is perpendicularly mounted on the bending plate. The bending plate is fixed to the outer side of the left and right main side plates by a first fastener. The second mounting plate is located at the front end of the wing plate and has a second mounting hole. The front end of the wing plate is mounted on the mounting platform via the second fastener and the second mounting hole.

[0006] Preferably, the wing assembly further includes a crossbeam, and the left wing and the right wing are connected by the crossbeam.

[0007] Preferably, the crossbeam includes a straight beam, a left curved plate, a right curved plate, a left shim, and a right shim. The left curved plate and the right curved plate are respectively installed vertically downward at both ends of the straight beam. The left shim is in contact with the left curved plate, and the right shim is in contact with the right curved plate.

[0008] Preferably, the main frame further includes a left support plate, a right support plate, and a rear connecting plate. One end of the left main side plate is connected to the left support plate, and the other end is connected to one end of the rear connecting plate. The other end of the rear connecting plate is connected to one end of the right main side plate, and the other end of the right main side plate is connected to the right support plate. A first mounting hole is provided on the mounting platform, and the first mounting hole corresponds one-to-one with the second mounting hole. A third mounting hole is provided on the outer surface of the left main side plate and the right main side plate, respectively.

[0009] Preferably, the wing plate further includes a first protective plate, a rear protective plate, a fuel tank mounting plate, and a baffle. The first protective plate is installed on the profile plate near the rear protective plate, and the profile plate, the first protective plate, the rear protective plate, the fuel tank mounting plate, and the baffle are welded into an integral frame structure.

[0010] Preferably, the fuel tank mounting plate includes an upper fuel tank mounting plate, a lower fuel tank mounting plate, and a connecting plate. The lower fuel tank mounting plate is connected to the upper fuel tank mounting plate through the connecting plate, and the lower fuel tank mounting plate is perpendicular to the upper fuel tank mounting plate.

[0011] Preferably, the lower fuel tank mounting plate is provided with mounting holes, and the left curved plate and the right curved plate are respectively provided with round holes, and the round holes correspond one-to-one with the mounting holes.

[0012] Preferably, the two ends of the crossbeam are respectively fixed to the fuel tank mounting plate of the left wing plate and the fuel tank mounting plate of the right wing plate by a first fastener.

[0013] Preferably, the fastener passes sequentially through the left curved plate, the left gasket, the round hole, and the mounting hole to mount the left end of the crossbeam to the fuel tank mounting plate of the left wing plate; the fastener passes sequentially through the right curved plate, the right gasket, the round hole, and the mounting hole to mount the right end of the crossbeam to the fuel tank mounting plate of the right wing plate.

[0014] Preferably, the fuel tank mounting plate is an L-shaped plate.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a bulldozer frame assembly with a wing plate structure for bulldozers. By fixing the bottom of the front part of the wing plate assembly to the mounting platform of the main frame with bolts, and fixing the rear fuel tank part of the wing plate assembly to the side plate of the main frame with the first fastener, the dual-point fixing method of the front bottom and the rear side distributes the total load of the wing plate and its load-bearing components to the mounting platform and the side of the main frame. This changes the stress mode of the bolt bearing the radial shear force alone in the prior art, so that the bolt mainly bears the axial tensile force, giving full play to the tensile strength of the bolt, greatly reducing the risk of bolt fatigue damage, and at the same time, conventional bolt specifications can be used to reduce manufacturing costs and assembly difficulty. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural schematic diagram of the bulldozer frame of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the bulldozer frame of this utility model from another perspective.

[0019] Figure 3 This is an exploded structural diagram of the bulldozer frame of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the wing plate assembly of this utility model.

[0021] The component names and their numbers in the diagram are as follows: 100, Bulldozer chassis structure; 10, Main chassis; 20, Wing plate assembly; 30, Anti-rollover assembly; 11, Left main side plate; 12, Right main side plate; 13, Left support plate; 14, Right support plate; 15, Rear connecting plate; 16, Mounting platform; 17, Third mounting hole; 18, Third fastener; 161, First mounting hole; 21, Left wing plate; 22, Right wing plate; 23, Crossbeam; 24, Electrical control room; 27, First fastener; 28, Second fastener; 29, Second mounting plate; 291, Second mounting hole; 211, Outline plate; 2111, Base plate. ; 2112, Bending plate; 212, Front protective plate; 213, First protective plate; 214, Second protective plate; 215, Third protective plate; 216, Fourth protective plate; 217, Rear protective plate; 218, Baffle; 219, Fuel tank mounting plate; 228, First support plate; 239, First connecting piece; 231, Straight beam; 232, Left bending plate; 233, Right bending plate; 234, Left gasket; 235, Right gasket; 236, Round hole; 2191, Upper fuel tank mounting plate; 2192, Lower fuel tank mounting plate; 2193, Connecting plate; 2194, Mounting hole; 2195, Fourth mounting hole. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] like Figure 1-4 As shown, this embodiment provides a bulldozer chassis structure 100, including a main chassis 10 and a wing plate assembly 20. The wing plate assembly 20 is mounted on the main chassis 10 and is used to mount the bulldozer's cab. The main frame 10 includes a left main side plate 11, a right main side plate 12, a left support plate 13, a right support plate 14, and a rear connecting plate 15. One end of the left main side plate 11 is connected to the left support plate 13, and the other end is connected to one end of the rear connecting plate 15. The other end of the rear connecting plate 15 is connected to one end of the right main side plate 12. The outer surfaces of the left main side plate 11 and the right main side plate 12 are respectively provided with third mounting holes 17. The other end of the right main side plate 12 is connected to the right support plate 14. The inner surfaces of the left support plate 13 and the right support plate 14 are respectively provided with mounting platforms 16. The mounting platforms 16 are provided with a plurality of first mounting holes 161. The front end of the wing plate assembly 20 is fixed to the mounting platform 16 by a second fastener 28, and the rear end of the wing plate assembly 20 is installed on the left main side plate 11 and the right main side plate 12 by a third fastener 18.

[0024] In this embodiment, as Figure 3-4As shown, the wing assembly 20 includes wing plates and a crossbeam 23. In this embodiment, there are two sets of wing plates, namely a left wing plate 21 and a right wing plate 22. The middle and rear parts of the left wing plate 21 and the middle and rear parts of the right wing plate 22 are connected by the crossbeam 23, connecting the wing assembly 20 into a frame structure. The structure of each wing plate includes a profile plate 211, a front protective plate 212, a first protective plate 213, a second protective plate 214, a third protective plate 215, a fourth protective plate 216, a rear protective plate 217, and a baffle 218. The profile plate 211 is an "L"-shaped bent plate, including a base plate 2111 and a bent plate 2112. The baffle 218 is installed on the profile plate 211. The front protective plate 212 and the rear protective plate 217 are respectively located at the two ends of the profile plate 211. The first protective plate 213 and the second protective plate 214 are... 4. The first support plate 228 is connected and set on the outline plate 211 at a position away from the rear protective plate 217. The third protective plate 215 is connected to the second protective plate 214 through the first connector 229. The second protective plate 214 and the third protective plate 215 are set in the middle of the outline plate 211. The fourth protective plate 216 is connected to the front protective plate 212. The front protective plate 212 is a bent plate with a triangular shape at the bend. The first protective plate 213, the second protective plate 214, the third protective plate 215 and the fourth protective plate 216 divide the outline plate 211 into a first mounting part, a second mounting part and a third mounting part. The first mounting part is used to install the bulldozer's fuel tank, hydraulic oil tank, etc. The third mounting part is equipped with an electrical control room 24, which is used to house the bulldozer's electrical control components.

[0025] In this embodiment, as Figure 3-4 As shown, the structure of each wing plate also includes a second mounting plate 29, which is vertically mounted on the bent plate 2112. The upper surface of the second mounting plate 29 contacts the bottom of the second protective plate 214, the third protective plate 215 and the fourth protective plate 216 respectively. One side of the second mounting plate 29 is connected to the rear protective plate 217. The second mounting plate 29 is provided with a number of second mounting holes 291, which correspond one-to-one with the first mounting holes 161. The second fastener 28 passes through the second mounting holes 291 and then through the first mounting holes 161, and is locked with a nut to install the contour plate 211 on the mounting platform 16, that is, the front end of the left wing plate 21 and the front end of the right wing plate 22 are installed on the main frame 10 by the second fastener 28.

[0026] In this embodiment, as Figure 4As shown, the crossbeam 23 includes a straight beam 231, a left curved plate 232, a right curved plate 233, a left gasket 234, and a right gasket 235. The left gasket 234 and the right gasket 235 are "m" shaped. The left curved plate 232 and the right curved plate 233 are provided with round holes 236. The left curved plate 232 and the right curved plate 233 are respectively installed vertically downward at both ends of the straight beam 231. The left gasket 234 is attached to the left curved plate 232, and the right gasket 235 is attached to the right curved plate 233.

[0027] In this embodiment, as Figure 1-4 As shown, the first mounting part is a box-shaped frame structure, which is welded to the outline plate 211, baffle 218, first protective plate 213 and rear protective plate 217 to form an integral frame structure through the fuel tank mounting plate 219. The fuel tank mounting plate 219 is a whole L-shaped plate, including an upper fuel tank mounting plate 2191, a lower fuel tank mounting plate 2192 and a connecting plate 2193. The lower fuel tank mounting plate 2192 is connected to the upper fuel tank mounting plate 2191 through the connecting plate 2193. The lower fuel tank mounting plate 2192 is perpendicular to the upper fuel tank mounting plate 21161. The lower fuel tank mounting plate 2192 is provided with mounting holes 2194 and several fourth mounting holes 2195. The fourth mounting holes 2195 correspond one-to-one with the third mounting holes 17. The third fastener 19 passes through the third mounting holes 17 and the fourth mounting holes 2195 to install and fix the left wing plate 21 and the right wing plate 22 onto the main frame 10. The first fastener 27 passes through the left washer 234, the round hole 236, and then through the mounting hole 2194 to fix the two ends of the crossbeam 23 onto the left wing plate 21 and the right wing plate 22 respectively.

[0028] This embodiment discloses a bulldozer frame structure 100. The front end of the wing plate assembly 20 is fixed to the mounting platform 16 of the main frame 10 by passing the second mounting hole 291 of the second mounting plate 29 through the second fastener 28. The rear end of the wing plate assembly 20 is connected to the profile plate 211, the lower fuel tank mounting plate 2192, the left main side plate 11, and the right main side plate 12 by the first fastener 27. This dual-point fixing method of the front bottom and the rear side distributes the total load of the wing plate and its load-bearing components to the mounting platform 16 and the side of the main frame 10. This changes the stress mode of the bolt bearing the radial shear force alone in the prior art, so that the bolt mainly bears the axial tensile force, giving full play to the tensile strength of the bolt, greatly reducing the risk of bolt fatigue damage, and at the same time, conventional bolt specifications can be used to reduce manufacturing costs and assembly difficulty. Meanwhile, by setting the crossbeam 23 to form a closed frame structure between the left wing plate 21 and the right wing plate 22, the deformation resistance and overall rigidity of the wing plate assembly 20 are effectively enhanced, avoiding problems such as local dents and warping when the wing plate assembly 20 is carrying heavy components. Especially for the weak area at the fuel tank installation location, the crossbeam can evenly transfer the local load to the left and right wing plates and the main frame, further optimizing the stress distribution.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bulldozer chassis assembly with a wing plate structure, characterized in that, The vehicle includes a main frame and a wing assembly mounted on the main frame. The wing assembly includes wing panels, which include a left wing panel and a right wing panel. The main frame includes a left main side plate and a right main side plate. Mounting platforms are respectively installed on the inner surfaces of the left and right main side plates. The wing plate includes a profile plate and a second mounting plate mounted on the profile plate. The profile plate includes a base plate and a bending plate. The bending plate is perpendicularly connected to the base plate. The second mounting plate is perpendicularly mounted on the bending plate. The bending plate is fixed to the outer side of the left and right main side plates by a third fastener. The second mounting plate is located at the front end of the wing plate and has a second mounting hole. The front end of the wing plate is mounted on the mounting platform by the second fastener and the second mounting hole.

2. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 1, characterized in that, The wing assembly also includes a crossbeam, through which the left wing and the right wing are connected.

3. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 2, characterized in that, The crossbeam includes a straight beam, a left curved plate, a right curved plate, a left shim, and a right shim. The left curved plate and the right curved plate are respectively installed vertically downward at both ends of the straight beam. The left shim is attached to the left curved plate, and the right shim is attached to the right curved plate.

4. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 3, characterized in that, The main frame also includes a left support plate, a right support plate, and a rear connecting plate. One end of the left main side plate is connected to the left support plate, and the other end is connected to one end of the rear connecting plate. The other end of the rear connecting plate is connected to one end of the right main side plate, and the other end of the right main side plate is connected to the right support plate. A first mounting hole is provided on the mounting platform, and the first mounting hole corresponds one-to-one with the second mounting hole. A third mounting hole is provided on the outer surface of the left main side plate and the right main side plate, respectively.

5. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 4, characterized in that, The wing plate also includes a first protective plate, a rear protective plate, a fuel tank mounting plate, and a baffle. The first protective plate is installed on the profile plate near the rear protective plate. The profile plate, the first protective plate, the rear protective plate, the fuel tank mounting plate, and the baffle are welded into an integral frame structure.

6. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 5, characterized in that, The fuel tank mounting plate includes an upper fuel tank mounting plate, a lower fuel tank mounting plate, and a connecting plate. The lower fuel tank mounting plate is connected to the upper fuel tank mounting plate through the connecting plate, and the lower fuel tank mounting plate is perpendicular to the upper fuel tank mounting plate.

7. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 6, characterized in that, The lower fuel tank mounting plate is provided with mounting holes, and the left and right curved plates are respectively provided with round holes, which correspond one-to-one with the mounting holes.

8. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 7, characterized in that, The two ends of the crossbeam are respectively fixed to the fuel tank mounting plate of the left wing plate and the fuel tank mounting plate of the right wing plate by the first fastener.

9. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 8, characterized in that, The fasteners pass sequentially through the left curved plate, the left gasket, the round hole, and the mounting hole to mount the left end of the crossbeam onto the fuel tank mounting plate of the left wing plate; the fasteners pass sequentially through the right curved plate, the right gasket, the round hole, and the mounting hole to mount the right end of the crossbeam onto the fuel tank mounting plate of the right wing plate.

10. The bulldozer chassis assembly with wing plate structure for bulldozers according to claim 8, characterized in that, The fuel tank mounting plate is an L-shaped plate.

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