Supporting device for multiple parallel engines

Abstract

The utility model provides a multi-parallel engine supporting device which comprises an engine support and a transfer case support, and the engine support is located on the left side of the transfer case support. The transfer case support comprises a bottom plate, an L-shaped vertical plate, a first vertical plate, a second vertical plate, a first flitch plate and a second flitch plate, the engine support comprises a bent plate, the bent plate comprises a first plate body and a second plate body, the first vertical plate is connected with an engine aircraft shell through the bent plate, the second vertical plate is connected with a motor connecting disc through the first flitch plate, and the first flitch plate is connected with the motor connecting disc through the second flitch plate. The second connecting piece is connected with the transfer case through the second flitch plate, so that the engine aircraft shell, the motor connecting disc (motor assembly), the transfer case and the engine supporting device form an integrated structure, and the coupling phenomenon of devices such as the transfer case, the engine and the motor in the operation process is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a support device, especially a multi-parallel engine support device. BACKGROUND

[0002] The current super large tonnage excavator power system commonly adopts an engine with a transfer case and three to four hydraulic pumps, and the increase in the number of transfer cases and hydraulic pumps leads to a significant increase in the spring mass, which puts forward extremely high requirements on the load capacity and damping performance of the engine support system; to cope with the above technical challenges, the engine support is generally arranged on the front end (fan end) of the engine and the transfer case, and the flywheel shell body is connected with the transfer case shell body to reduce the rigidity requirement of the flywheel shell.

[0003] However, with the application of hybrid power technology in super large tonnage excavators, a generator is additionally arranged between the engine and the transfer case, which further aggravates the system complexity, and the introduction of the generator increases the spring mass of the suspension system, introduces the mass of the generator in addition to the original main pump and transfer case structure load, leading to a severe challenge to the dynamic load boundary of the suspension system, and the introduction of the generator increases the axial distance between the flywheel shell and the transfer case, forming an ultra-long series structure of "engine-generator-transfer case", which forms a six-point support composed of the front end of the engine, the flywheel shell of the engine and the shell body of the transfer case, but the above ultra-long series structure cannot realize decoupling design in structure. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a multi-parallel engine support device, which can realize the mechanical coupling reconstruction of the flywheel shell-generator-transfer case under the premise of ensuring that the flywheel shell body rigidity meets the standard requirements, and realize decoupling design under multi-dimensional freedom coupling conditions.

[0005] The utility model is implemented through the following technical solutions:

[0006] A multi-parallel engine support device, comprising an engine support and a transfer case support, wherein the engine support is located on the left side of the transfer case support.

[0007] The transfer case support comprises a bottom plate, an L-shaped vertical plate, a first vertical plate, a second vertical plate, a first paste plate and a second paste plate, the L-shaped vertical plate is arranged on the upper surface of the bottom plate, the L-shaped vertical plate comprises a first connecting piece, a second connecting piece and a third connecting piece, the first connecting piece, the second connecting piece and the third connecting piece are an integrated structure, the third connecting piece is arranged on one side of the bottom plate, the third connecting piece and the second connecting piece are distributed at a 90-degree angle, and the first connecting piece is located on the left side of the second connecting piece.

[0008] The first vertical plate is arranged on the upper surface of the bottom plate and away from the third connecting piece, the second vertical plate is arranged at the middle position of the upper surface of the bottom plate, the first pasting plate is arranged on the side of the second vertical plate away from the third connecting piece, the second pasting plate is connected with the motor connecting disc through the first pasting plate, the second pasting plate is arranged on the side of the second vertical plate away from the third connecting piece, and the second connecting piece is connected with the transfer case through the second pasting plate.

[0009] The engine support comprises a bending plate, the bending plate comprises a first plate body and a second plate body, the first plate body is located on the left side of the second plate body, the second plate body is located on the left side of the first vertical plate, the first plate body and the second plate body are connected smoothly at a 90-degree angle, the first plate body is bolted with the first vertical plate, and the second plate body is bolted with the engine flywheel shell.

[0010] Preferably, the bottom plate serves as a system receiving plate, and the upper surface of the bottom plate is provided with two shock absorber mounting holes distributed left and right relative to the second vertical plate.

[0011] Preferably, the two right-angle edges of the first vertical plate are connected with the first connecting piece and the bottom plate respectively.

[0012] Preferably, the upper side of the first vertical plate is provided with a first threaded hole.

[0013] Preferably, the two right-angle edges of the second vertical plate are connected with the second connecting piece and the bottom plate respectively.

[0014] Preferably, the second threaded hole penetrating through the second pasting plate and the second connecting piece is arranged between the second pasting plate and the second connecting piece, and the second vertical plate can be bolted with the motor connecting disc through the second threaded hole and the first pasting plate.

[0015] Preferably, the third threaded hole penetrating through the second pasting plate and the second connecting piece is arranged between the second pasting plate and the second connecting piece, and the second connecting piece can be bolted with the transfer case through the third threaded hole.

[0016] Preferably, the bending plate further comprises a rib plate, and the rib plate is transversely clamped on the inner side of the bending plate, i.e., the side of the first plate body and the second plate body away from the engine flywheel shell.

[0017] Preferably, the surfaces of the first plate body and the second plate body are both provided with fourth threaded holes,

[0018] Preferably, the fourth threaded holes on the second plate body are the same in size and one-to-one corresponding in position with the first threaded holes, and the first plate body is bolted with the motor connecting disc through the fourth threaded holes.

[0019] Compared with the prior art, the utility model has at least the following advantages and beneficial effects:

[0020] 1. The utility model discloses a second pasting board, first vertical board and second vertical board are correspondingly arranged at the position of differential case, motor connecting piece and engine flywheel shell structure respectively, and the engine flywheel shell, generator and differential case are connected in parallel to form a support whole through the three structures of second pasting board, first vertical board and second vertical board, the mechanical coupling reconstruction of engine flywheel shell - generator - differential case three can be realized, and the decoupling design under the multi-dimensional freedom coupling working condition is realized.

[0021] 2. After the differential case, engine and motor three structures are connected in parallel to form an integrated structure, the damping mounting hole is arranged on the bottom plate, and the shock absorber is directly connected with the bottom plate through the damping mounting hole, so that the shock absorber can provide stable support damping effect for the whole suspension system.

[0022] 3. The utility model discloses a plurality of connecting plate bodies, i.e. first vertical board, second vertical board and second pasting board are arranged in the engine support structure, and a plurality of threaded holes are arranged on the plurality of connecting plate bodies, the installation feasibility is greatly improved through the multi-point bolt connection, and the installation requirement of the whole device can be met.

[0023] The advantages of the additional aspects of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. DRAWINGS

[0024] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and their descriptions serve to explain the utility model, and do not constitute improper limitation on the utility model.

[0025] Figure 1 It is the main view of the utility model multi-parallel engine support device structure;

[0026] Figure 2 It is the side view of the utility model multi-parallel engine support device structure;

[0027] Figure 3 It is the rear view of the utility model multi-differential case support structure;

[0028] Figure 4 It is the overhead view of the utility model engine support structure;

[0029] Figure 5 It is the rear view of the utility model engine support structure;

[0030] Wherein, 1, engine support, 2, transfer case support, 3, bottom plate, 4, L-shaped vertical plate, 5, first vertical plate, 6, second vertical plate, 7, first paste plate, 8, second paste plate, 9, first connecting piece, 10, second connecting piece, 11, third connecting piece, 12, motor connecting plate, 13, transfer case, 14, first threaded hole, 15, bent plate, 16, first plate body, 17, second plate body, 18, engine flywheel housing, 19, motor assembly, 20, shock absorber mounting hole, 21, second threaded hole, 22, third threaded hole, 23, fourth threaded hole, 24, web plate. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application; unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; it should be noted that the terms used herein are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0032] In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] Embodiment one

[0034] As shown in Figure 1 A multi-parallel engine support device, comprising an engine support 1 and a transfer case support 2, the engine support 1 is located on the left side of the transfer case support 2.

[0035] As shown in Figure 2 and Figure 3 The transfer case support 2 comprises a bottom plate 3, an L-shaped vertical plate 4, a first vertical plate 5, a second vertical plate 6, a first paste plate 7 and a second paste plate 8, the L-shaped vertical plate 4 is arranged on the upper surface of the bottom plate 3, the L-shaped vertical plate 4 comprises a first connecting piece 9, a second connecting piece 10 and a third connecting piece 11, the first connecting piece 9, the second connecting piece 10 and the third connecting piece 11 are an integrated structure, the third connecting piece 11 is arranged on one side of the bottom plate, the third connecting piece 11 and the second connecting piece 10 are distributed at a 90-degree angle, and the first connecting piece 9 is located on the left side of the second connecting piece 10.

[0036] Specifically, the third connecting piece 11 is a right vertical triangular shape, the straight side of the bottom of the triangle is welded on the upper surface of the bottom plate, the straight side of the other side is connected to the second connecting piece through a round corner, the inclined side of the third connecting piece is above the bottom plate, the third connecting piece belongs to the folded edge part of the L-shaped vertical plate, the first connecting piece 9 and the second connecting piece 10 both belong to the straight part of the L-shaped vertical plate, the first connecting piece, the second connecting piece and the third connecting piece 11 are integrally and continuously distributed, the third connecting piece and the second connecting piece form a 90-degree angle, and the connecting part of the two is connected through a round corner, the first connecting piece and the second connecting piece are distributed forward and backward along the same axis, the first connecting piece is located on the left side of the second connecting piece, and the surfaces of the first connecting piece, the second connecting piece and the third connecting piece all need to be strictly processed according to the machining requirements to meet the flatness requirements of the connecting piece surface.

[0037] The first vertical plate 5 is arranged on the upper surface of the bottom plate 3 away from the third connecting plate, the second vertical plate is arranged at the middle position of the upper surface of the bottom plate, the first plate 7 is arranged on the side of the second vertical plate 6 away from the third connecting piece 11, the second vertical plate 6 is connected to the motor connecting disc 12 through the first plate 7, the second plate 8 is arranged on the side of the second vertical plate away from the third connecting piece, and the second connecting piece is connected to the transfer case 13 through the second plate.

[0038] The first vertical plate 5 adopts a trapezoidal structure, the inclined side of the trapezoidal structure is arranged away from the first connecting plate, the two straight sides of the first vertical plate are connected with the first connecting piece 9 and the bottom plate 3 respectively, and the upper side of the first vertical plate is provided with a first threaded hole 14.

[0039] As shown in Figure 4 and Figure 5 , the engine support 1 comprises a bent plate 15, the bent plate 15 comprises a first plate body 16 and a second plate body 17, the first plate body 16 is located on the left side of the second plate body, the second plate body 17 is located on the left side of the first vertical plate 5, the first plate body and the second plate body form a 90-degree angle and are connected through a round corner, the second plate body 17 is bolted with the first vertical plate 5, the first plate body 16 is bolted with the engine flywheel shell 18, and the side, away from the third connecting piece 11, of the first vertical plate 5 is connected with the engine flywheel shell 18 through the first plate body and the second plate body.

[0040] The bent plate further comprises a rib plate 24, the rib plate 24 is transversely clamped on the inner side of the bent plate, that is, the side, away from the engine flywheel shell, of the first plate body and the second plate body, and the stability between the first plate body and the second plate body is greatly improved through the rib plate.

[0041] In order to be connected with the engine flywheel cover 18 through the first vertical plate, the first plate body and the second plate body surface of the embodiment are provided with fourth threaded holes 23, the fourth threaded holes 23 on the second plate body 17 are the same size as the first threaded holes and one-to-one correspondence, the first plate body 16 is bolted with the first vertical plate through the six fourth threaded holes 23, the number of the fourth threaded holes on the first plate body 16 is four and is distributed in the form of 2X2 rectangle, the engine flywheel disc is located on the outer side of the first plate body away from the first vertical plate, the first plate body 16 is bolted with the engine flywheel cover 18 through the four fourth threaded holes, the engine flywheel cover 18 is arranged at one end of the motor assembly 19, so that the motor assembly 19 of the embodiment is connected with the first vertical plate through the bending plate and the engine flywheel cover, and the motor assembly is fixed on the engine support device.

[0042] The bottom plate 3 is a system receiving plate, and needs to support the entire suspension system. In the embodiment, in order to ensure that the bottom plate can provide sufficient bearing support force and avoid the influence of bad impact on the oscillation of the bottom plate, two shock absorber mounting holes 20 are arranged on the upper surface of the bottom plate relative to the second vertical plate. The bottom plate can be directly connected with the shock absorber through the two shock absorber mounting holes 20, and rely on the shock absorber to reduce the impact oscillation force of bad impact on the bottom plate.

[0043] The second vertical plate structure is similar to the first vertical plate, which also adopts a trapezoidal structure. The oblique side of the trapezoidal structure of the second vertical plate is arranged on the side away from the second connecting piece 10, and the oblique side is arranged in parallel with the oblique side of the first vertical plate. The two right angle sides of the second vertical plate are connected with the second connecting piece 10 and the bottom plate 3 respectively. In order to be connected with the motor connecting disc 12 through the second vertical plate, the second threaded holes 21 are arranged on the upper side of the second vertical plate in the embodiment. The number of the second threaded holes 21 in the embodiment is three, and the three second threaded holes are arranged in sequence from top to bottom. Since the second plate 8 is an intermediate structure of the second vertical plate and the motor connecting disc, the surface of the second plate must be strictly machined according to the machining requirements to ensure the flatness. The second threaded holes are also arranged on the second plate, and the size, number and position of the second threaded holes arranged on the second plate are the same as those of the second threaded holes on the second vertical plate, that is, the second threaded holes penetrating each other are arranged between the second plate and the second connecting piece. The second vertical plate is bolted with the motor connecting disc through the second threaded holes and the second plate.

[0044] In order to arrange the transfer case 13 on the right side of the motor assembly 19, that is, to arrange the transfer case 13, the motor connecting disc 12 and the engine flywheel cover 18 coaxially on the side of the second connecting piece away from the second vertical plate, the third threaded holes 22 penetrating each other are arranged between the second plate and the second connecting piece. The second connecting piece can be bolted with the transfer case through the third threaded holes 22 to fix the transfer case on the second connecting piece.

[0045] In the embodiment, the engine airplane shell is fixed on the multi-parallel engine support device through the first vertical plate and the bent plate, the motor connecting disc is fixed on the multi-parallel engine support device through the second vertical plate and the first pasting plate, and the transfer case is connected with the engine support device through the second pasting plate. Since the first vertical plate, the second vertical plate and the second pasting plate are sequentially distributed from left to right, the engine airplane shell, the motor connecting disc (motor assembly) and the transfer case are coaxially arranged on the side of the second connecting piece away from the second vertical plate. The above three structures are not directly connected with the second connecting piece. The transfer case is located at the right side of the motor connecting piece. The motor assembly is arranged in the inner side of the motor connecting piece. The motor connecting disc is arranged outside the motor assembly. The engine flywheel shell is arranged at the end of the motor assembly away from the transfer case. In this way, the mechanical coupling of the engine flywheel shell, the motor and the transfer case is reconfigured to form a parallel integrated structure. The decoupling design between the structures is realized under the condition of meeting the strength and rigidity requirements of the motor and the engine flywheel shell and under the multi-dimensional freedom coupling working condition.

[0046] Although the specific embodiments of the utility model have been described above with reference to the drawings, the description is not a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications or changes made on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A multiple parallel engine support apparatus, characterized by comprising: The engine support and the transfer case support, the engine support is located at the left side of the transfer case support; The transfer case support includes a bottom plate, an L-shaped vertical plate, a first vertical plate, a second vertical plate, a first paste plate and a second paste plate, the L-shaped vertical plate is arranged on the upper surface of the bottom plate, the L-shaped vertical plate includes a first connecting piece, a second connecting piece and a third connecting piece, the first connecting piece, the second connecting piece and the third connecting piece are an integrated structure, the third connecting piece is arranged on one side of the bottom plate, the third connecting piece and the second connecting piece are distributed at a 90-degree angle, and the first connecting piece is located at the left side of the second connecting piece; The first vertical plate is arranged on the upper surface of the bottom plate away from the third connecting piece, the second vertical plate is arranged at the middle position of the upper surface of the bottom plate, the first paste plate is arranged on the side of the second vertical plate away from the third connecting piece, the second vertical plate is connected with the motor connecting disc through the first paste plate, and the second paste plate is arranged on the side of the second vertical plate away from the third connecting piece, and the second connecting piece is connected with the transfer case through the second paste plate. The engine support includes a bent plate, the bent plate includes a first plate body and a second plate body, the first plate body is located at the left side of the second plate body, the second plate body is located at the left side of the first vertical plate, the first plate body and the second plate body are smoothly connected at a 90-degree angle, the first plate body is bolted with the first vertical plate, and the second plate body is bolted with the engine flywheel shell.

2. A multiple parallel engine support apparatus as claimed in claim 1, wherein The bottom plate serves as a system receiving plate, and the upper surface of the bottom plate is provided with two shock absorber mounting holes distributed left and right relative to the second vertical plate.

3. A multiple parallel engine support apparatus as claimed in claim 1, wherein Two right-angle edges of the first vertical plate are connected with the first connecting piece and the bottom plate respectively.

4. A multiple parallel engine support apparatus as set forth in claim 1 wherein, A first threaded hole is arranged on the upper side of the first vertical plate.

5. A multiple parallel engine support apparatus as set forth in claim 1 wherein, Two right-angle edges of the second vertical plate are connected with the second connecting piece and the bottom plate respectively.

6. A multiple parallel engine support apparatus as set forth in claim 1 wherein, A second threaded hole penetrating through the second paste plate and the second connecting piece is arranged between the second paste plate and the second connecting piece, and the second vertical plate can be bolted with the motor connecting disc through the second threaded hole and the first paste plate.

7. A multiple parallel engine support apparatus as set forth in claim 1 wherein, A third threaded hole penetrating through the second paste plate and the second connecting piece is arranged between the second paste plate and the second connecting piece, and the second connecting piece can be bolted with the transfer case through the third threaded hole.

8. A multiple parallel engine support apparatus as set forth in claim 1 wherein, The bent plate further includes a rib plate, the rib plate is transversely clamped on the inner side of the bent plate, i.e., the side of the first plate body and the second plate body away from the engine flywheel shell.

9. A multiple parallel engine support apparatus as set forth in claim 1 wherein, Fourth threaded holes are arranged on the surfaces of the first plate body and the second plate body.

10. A multiple parallel engine support apparatus as set forth in claim 8 wherein, The fourth threaded hole of the second plate body and the first threaded hole are the same in size and one-to-one in position, and the first plate body is bolted with the motor connecting disc through the fourth threaded hole.

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