CN219600905U - Gearbox suspension assembly, power device suspension assembly and crane - Google Patents

Abstract

The utility model provides a gearbox suspension assembly, a power device suspension assembly and a crane, and belongs to the technical field of engineering machinery. The gearbox suspension assembly includes suspension support and mount pad, and two suspension supports are connected with the gearbox in the relative both sides of gearbox respectively, and suspension support has first suspension mounting point and second suspension mounting point, and suspension support is connected with the gearbox through first suspension mounting point and second suspension mounting point respectively, and suspension support keeps away from the one end of gearbox and is connected with the mount pad, and the mount pad is located between first suspension mounting point and the second suspension mounting point with suspension support's hookup location, and wherein, the mount pad is used for being connected with the frame. The gearbox suspension assembly does not occupy the space above the gearbox, reduces the difficulty of arrangement and installation, does not influence the arrangement of other structures above the gearbox, such as an oil pump, and can ensure that the bending moment generated on the joint surface of the rear end surface of the engine body and the flywheel shell is within a safe range value.

Description

Gearbox suspension assembly, power device suspension assembly and crane

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a gearbox suspension assembly, a power device suspension assembly and a crane.

Background

In recent years, with increasing market demands, heavy vehicles, such as cranes, and particularly all-terrain cranes, generally require a power plant consisting of a high horsepower engine and a heavy gearbox to meet the working demands, and in order to avoid excessive bending moment on the joint surface of the rear end surface of the engine body and the flywheel housing caused by the gravity of the gearbox, or in order to avoid large pitching vibration of the engine/gearbox, a suspension device is generally required to be added on the gearbox to support the gearbox in a vibration reducing manner.

However, because of the heavy vehicles like cranes, the new heavy gearboxes used with high horsepower engines are heavy in construction and bulky, resulting in tight installation operating space around the new heavy gearboxes. However, the suspension assembly on the conventional gearbox has a complex structure, as shown in fig. 1, the gearbox suspension assembly not only has two main suspension devices 7 at the front end of the gearbox 6, but also has an auxiliary suspension device 8 at the top of the rear end of the gearbox 6, and each suspension device generally comprises a suspension bracket connected with the gearbox, a mounting bracket connected with a frame and a suspension cushion, and the suspension cushion is mounted between the suspension bracket and the mounting bracket to play a basic vibration reduction role, wherein the conventional gearbox suspension assembly occupies a larger gearbox circumferential space as a whole, and particularly the auxiliary suspension device 8 occupies a gearbox upper space, is difficult to be mounted in a narrow space above the gearbox 6, and can affect the arrangement of other structural members such as an oil pump above the gearbox 6.

Disclosure of Invention

The present utility model aims to solve at least one of the above technical problems.

The utility model provides a gearbox suspension assembly, which comprises two suspension brackets, a mounting support and a gearbox, wherein the two suspension brackets are respectively connected with the gearbox on two opposite sides of the gearbox, each suspension bracket is provided with a first suspension mounting point and a second suspension mounting point, each suspension bracket is respectively connected with the gearbox through the first suspension mounting point and the second suspension mounting point, one end of each suspension bracket far away from the gearbox is connected with the mounting support, and the connection position of each mounting support and each suspension bracket is positioned between the corresponding first suspension mounting point and the corresponding second suspension mounting point, and each mounting support is used for being connected with a frame.

Compared with the prior art, the gearbox suspension assembly provided by the utility model has the following beneficial effects:

the auxiliary suspension device arranged at the top of the gearbox is omitted, and only one suspension bracket is arranged on the opposite sides of the gearbox, such as the left side and the right side of the gearbox respectively, so that the upper space of the gearbox cannot be occupied, the suspension brackets can have enough space on the left side and the right side of the gearbox to complete arrangement and installation, the difficulty of arrangement and installation is reduced, and meanwhile, the arrangement of other structures such as an oil pump above the gearbox cannot be influenced. In addition, the suspension support has two places suspension mounting points, for example, first suspension mounting point and second suspension mounting point can be in front of and behind respectively with the gearbox connection fixed, and be used for with the fixed mount pad of frame then with the position connection between two places suspension mounting points of suspension support, and then can make the suspension cushion of arranging between mount pad and suspension support also be located between two places suspension mounting points around, and then play essential support suspension and vibration damping effect to the gearbox, simultaneously, because the suspension cushion is set up between first suspension mounting point and second suspension mounting point, the suspension support is equivalent to "lever", the suspension cushion then is equivalent to "fulcrum", after the gearbox is installed to the first suspension mounting point and the second suspension mounting point through "lever" both ends, not only have a fine support suspension effect to the gearbox, and when gearbox and/or engine vibrate, especially when taking place the every single move vibration, the suspension cushion can swing as "fulcrum" by the cushion, and realize the vibration damping, guarantee that the moment of flexure produced on engine organism rear end face and the wheel casing joint face is within the safety range.

Further, the gearbox suspension assembly further comprises a suspension cushion, and the suspension bracket is connected with the mounting support through the suspension cushion.

Further, the length direction of the suspension bracket extends along the axial direction of the gearbox, and the first suspension mounting point and the second suspension mounting point are respectively located at two ends of the length direction of the suspension bracket.

Further, the suspension support includes interconnect's first mounting panel and second mounting panel, first suspension mounting point with the second suspension mounting point all set up in on the first mounting panel, the second mounting panel with the suspension cushion is connected, first mounting panel with be provided with the strengthening rib between the second mounting panel.

Further, the gearbox suspension assembly further comprises a cushion block, one side of the cushion block is connected with the first mounting plate, and the other side of the cushion block abuts against the gearbox, so that the length direction of the first mounting plate is parallel to the axial direction of the gearbox.

Further, the second mounting plate is used for being connected with the suspension cushion through a first fastener, a first waist-shaped hole matched with the first fastener is formed in the second mounting plate, and the suspension cushion is provided with a first connecting hole matched with the first fastener.

Further, the mounting support is used for being connected with the suspension cushion through a second fastener, and the mounting support is provided with the second waist type hole of second fastener adaptation, the suspension cushion be provided with the second connecting hole of second fastener adaptation, wherein, the length direction in first waist type hole is on a parallel with the axial of gearbox, the length direction in second waist type hole respectively with the length direction in first waist type hole and the axial of gearbox is perpendicular.

Further, the first suspension mounting point and the second suspension mounting point are bolt holes.

The utility model also provides a power device suspension assembly comprising an engine suspension assembly and a gearbox suspension assembly as described above.

Since technical improvements and technical effects of the power plant suspension assembly are the same as those of the transmission suspension assembly, the power plant suspension assembly will not be described again.

The utility model also provides a crane comprising the power plant suspension assembly.

Since technical improvements and technical effects of the crane are the same as the power unit suspension, the crane will not be described.

Drawings

FIG. 1 is a top view of a conventional transmission suspension assembly;

FIG. 2 is a side view of a transmission suspension assembly according to an embodiment of the present utility model;

FIG. 3 is a top view of a transmission suspension assembly according to an embodiment of the present utility model;

FIG. 4 is a front view of a transmission suspension assembly according to an embodiment of the present utility model;

fig. 5 is a side view of a suspension bracket according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a suspension cushion; 2. a suspension bracket; 21. a first mounting plate; 211. a first suspension mounting point; 212. a second suspension mounting point; 22. a second mounting plate; 221. a first waist-shaped hole; 23. reinforcing ribs; 3. a mounting support; 31. a third waist-shaped hole; 4. a cushion block; 51. a first fastener; 52. a second fastener; 6. a gearbox; 7. a main suspension device; 8. auxiliary suspension means.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Moreover, in the drawings, the Z axis represents vertical, i.e., up and down, and the positive direction of the Z axis (i.e., the arrow of the Z axis points) represents up, and the negative direction of the Z axis (i.e., the direction opposite to the positive direction of the Z axis) represents down; the X-axis in the drawing represents the longitudinal direction, i.e., the front-to-back position, and the positive direction of the X-axis (i.e., the arrow pointing along the X-axis) represents the front, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear; the Y-axis in the drawing represents the lateral direction, i.e., the left-right position, and the positive direction of the Y-axis (i.e., the arrow of the Y-axis points) represents the left, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the right.

It should also be noted that the foregoing Z-axis, X-axis, and Y-axis are meant to be illustrative only and to simplify the description of the present utility model, and are not meant to indicate or imply that the devices or elements referred to must be oriented, configured and operated in a particular orientation and are not intended to be limiting.

Referring to fig. 2 and 3, a transmission suspension assembly according to an embodiment of the present utility model includes suspension brackets 2 and mount brackets 3, the number of suspension brackets 2 is two, the two suspension brackets 2 are connected with the transmission 6 at opposite sides of the transmission 6, respectively, and the suspension brackets 2 have a first suspension mounting point 211 and a second suspension mounting point 212, the suspension brackets 2 are connected with the transmission 6 through the first suspension mounting point 211 and the second suspension mounting point 212, respectively, one end of the suspension brackets 2 away from the transmission 6 is connected with the mount brackets 3, and the connection position of the mount brackets 3 with the suspension brackets 2 is located between the first suspension mounting point 211 and the second suspension mounting point 212, wherein the mount brackets 3 are used for connection with a vehicle frame.

In this embodiment, the suspension assembly of the gearbox eliminates the conventional auxiliary suspension device 8 arranged at the top of the gearbox 6, and only one suspension bracket 2 is arranged on each of two opposite sides, such as the left side and the right side, of the gearbox 6, so that the suspension brackets 2 do not occupy the space above the gearbox 6, so that enough space can be left and right sides of the gearbox 6 to complete arrangement and installation, the difficulty of arrangement and installation is reduced, and meanwhile, the arrangement of other structures above the gearbox 6, such as an oil pump, is not influenced.

In addition, the suspension bracket 2 has two suspension mounting points, such as a first suspension mounting point 211 and a second suspension mounting point 212, and can be used for connecting and fixing the gearbox 6 one by one respectively, and the mounting support 3 fixed with the frame is connected with the position between the two suspension mounting points of the suspension bracket 2, so that the suspension cushion 1 arranged between the mounting support 3 and the suspension bracket 2 is also positioned between the two suspension mounting points front and back, and further plays a role in basically supporting and suspending the gearbox 6 and damping the vibration, meanwhile, since the suspension cushion 1 is arranged between the first suspension mounting point 211 and the second suspension mounting point 212, the suspension bracket 2 is equivalent to a "lever", the suspension cushion 1 is equivalent to a "fulcrum", after the gearbox 6 is connected through the first suspension mounting point 211 and the second suspension mounting point 212 at two ends of the "lever", not only has a good supporting and the gearbox 6 can swing with the suspension cushion 1 as a "fulcrum" and ensure that the joint bending moment and the flywheel housing are engaged with the flywheel housing by the suspension cushion 1 when the gearbox 6 or/and the engine vibrate, especially when pitching vibrates.

Specifically, the gearbox suspension assembly further comprises a suspension mat 1, and the suspension bracket 2 is connected with the mounting support 3 through the suspension mat 1, i.e. the suspension mat 1 is arranged between the suspension bracket 2 and the mounting support 3.

Referring to fig. 2 and 3, in a particular embodiment, the length of the suspension bracket 2 extends in the axial direction of the gearbox 6, and the first suspension mounting point 211 and the second suspension mounting point 212 are located at opposite ends of the length of the suspension bracket 2, respectively.

In the present embodiment, the length direction of the suspension bracket 2 refers to the front-rear direction thereof, that is, the X-axis direction in the drawing. Because the length direction of the suspension bracket 2 extends along the axial direction of the gearbox 6, the first suspension mounting point 211 can be connected with the position of the gearbox 6 close to the front end, and the second suspension mounting point 212 can be connected with the position of the gearbox 6 close to the rear end, for large heavy gearboxes 6, the positions of the two suspension mounting points are convenient to be connected with the preset mounting points near the end of the gearbox 6.

Moreover, since the suspension bracket 2 is long enough, the installation position of the suspension cushion 1 can be adjusted according to actual needs, and meanwhile, since the suspension bracket 2 is long enough, the rigidity of the suspension cushion after being connected with a transmission can be ensured to be enough.

Referring to fig. 2-4, in one particular embodiment, the first and second suspension mounting points 211, 212 are bolt holes.

In this embodiment, the first suspension mounting point 211 and the second suspension mounting point 212 are bolt holes, and the mounting point preset near the end of the gearbox 6 is also referred to as a bolt hole, that is, the suspension bracket 2 is connected with the gearbox 6 through a bolt, compared with welding, the bolting is easier to realize, and the gearbox 6 is also convenient to detach when the later maintenance is needed.

Referring to fig. 2-5, in a specific embodiment, the suspension bracket 2 includes a first mounting plate 21 and a second mounting plate 22 that are connected to each other, the first mounting plate 21 and the second mounting plate 22 are each provided with a first mounting point 211 and a second mounting point 212, and the second mounting plate 22 is connected to the suspension pad 1.

In this embodiment, the suspension bracket 2 is connected with the gearbox 6 through the first mounting plate 21, the suspension bracket 2 is connected with the suspension cushion 1 through the second mounting plate 22, the first suspension mounting point 211 on the first mounting plate 21 can be composed of a plurality of bolt holes, the second suspension mounting point 212 on the first mounting plate 21 can also be composed of a plurality of bolt holes, for example, as shown in fig. 2 and 5, the first suspension mounting point 211 is composed of six bolt holes, the second suspension mounting point 212 is also composed of six bolt holes, and the stability of the connection between the suspension bracket 2 and the gearbox 6 is ensured.

Furthermore, the suspension bracket 2 is connected by, for example, a first mounting plate 21 and a second mounting plate 22 which are perpendicular to each other, and may be in a one-piece structure, and the suspension bracket 2 has high rigidity and is simple in structure and not heavy.

Referring to fig. 2-5, in one particular embodiment, a stiffener 23 is disposed between the first mounting plate 21 and the second mounting plate 22.

In this embodiment, by providing the reinforcing ribs 23 between the first mounting plate 21 and the second mounting plate 22, the rigidity of the suspension bracket 2 can be further enhanced, and the suspension bracket 2 is prevented from being deformed.

Referring to fig. 3, in a specific embodiment, the transmission suspension assembly further includes a spacer 4, one side of the spacer 4 is connected to the first mounting plate 21, and the other side of the spacer 4 abuts the transmission 6, so that the length direction of the first mounting plate 21 is parallel to the axial direction of the transmission 6.

In this embodiment, since the diameters of the front and rear ends of the gearbox 6 may be different, such as shown in fig. 3, the diameter of the front end of the gearbox 6 is larger than the diameter of the rear end, so the cushion block 4 may be disposed at the rear end of the suspension bracket 2, when the rear end of the suspension bracket 2 abuts against the outer side of the rear end of the gearbox 6 through the cushion block 4, and the front end of the suspension bracket 2 abuts against the outer side of the front end of the gearbox 6, the length direction of the suspension bracket 2 may be parallel to the axial direction of the gearbox 6, so that the bolt may be perpendicularly connected with the suspension bracket 2 (specifically, the first mounting plate 21) and the gearbox 6, so as to reduce the mounting difficulty.

Referring to fig. 3, in a specific embodiment, the second mounting plate 22 is used to connect with the suspension pad 1 by the first fastener 51, and the second mounting plate 22 is provided with a first waist-shaped hole 221 adapted to the first fastener 51, and the top of the suspension pad 1 is provided with a first connection hole adapted to the first fastener 51.

In this embodiment, the second mounting plate 22 is provided with a first waist-shaped hole 221, and the length direction of the first waist-shaped hole 221 is the front-back direction, so that the first fastener 51, such as a bolt, can move back and forth along the first waist-shaped hole 221 within a certain range, thereby ensuring that the second mounting plate 22 is convenient to connect with the suspension cushion 1.

Referring to fig. 4, in a specific embodiment, the mounting support 3 is used to connect with the suspension pad 1 through the second fastener 52, and the mounting support 3 is provided with a second waist-shaped hole adapted to the second fastener 52, and the suspension pad 1 is provided with a second connection hole adapted to the second fastener 52, wherein the length direction of the first waist-shaped hole 221 is parallel to the axial direction of the gearbox 6, and the length direction of the second waist-shaped hole is perpendicular to the length direction of the first waist-shaped hole 221 and the axial direction of the gearbox 6, respectively.

In this embodiment, the second waist-shaped hole is formed at the top of the mounting support 3, and the length direction of the second waist-shaped hole is the left-right direction, so that the second fastener 52, such as a bolt, can move left and right within a certain range along the second waist-shaped hole, and the mounting support and the suspension cushion 1 are ensured to be connected conveniently.

In addition, the outer side of the mounting support 3 can be further provided with a third waist-shaped hole 31, the length direction of the third waist-shaped hole 31 is vertical, and a third connecting hole corresponding to the third waist-shaped hole is formed in the frame, so that the mounting support and the frame are convenient to connect. Also, the first, second and third kidney-shaped holes 221, 31 are constructed like a "triaxial mechanical arm" capable of precisely connecting the reserved bolt holes on the frame and the transmission case 6.

Another embodiment of the present utility model also provides a power plant suspension assembly including an engine suspension assembly and a transmission suspension assembly as previously described.

Since the technical improvements and effects of the power plant suspension assembly are the same as those of the transmission suspension assembly, the power plant suspension assembly will not be described again.

Still another embodiment of the present utility model provides a crane comprising a power plant suspension assembly as previously described.

Since the technical improvements and effects of the crane are the same as the suspension of the power unit, the crane will not be described again.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.

Claims (10)

1. The utility model provides a gearbox suspension assembly, its characterized in that, includes suspension support (2), mount pad (3) and gearbox (6), the quantity of suspension support (2) is two, two suspension support (2) are in respectively gearbox (6) relative both sides with gearbox (6) are connected, just suspension support (2) have first suspension mounting point (211) and second suspension mounting point (212), suspension support (2) are through first suspension mounting point (211) with second suspension mounting point (212) with gearbox (6) are connected, suspension support (2) are kept away from the one end of gearbox (6) with mount pad (3) are connected, just mount pad (3) with the hookup location of suspension support (2) is located between first suspension mounting point (211) and second suspension mounting point (212), wherein, mount pad (3) are used for being connected with the frame.

2. Gearbox suspension assembly according to claim 1, further comprising a suspension mat (1), through which suspension mat (1) the suspension bracket (2) is connected with the mounting bracket (3).

3. Gearbox suspension assembly according to claim 1, characterized in that the length direction of the suspension bracket (2) extends in the axial direction of the gearbox (6) and that the first suspension mounting point (211) and the second suspension mounting point (212) are located at both ends of the suspension bracket (2) in the length direction, respectively.

4. Gearbox suspension assembly according to claim 2, characterized in that the suspension bracket (2) comprises a first mounting plate (21) and a second mounting plate (22) which are connected to each other, the first suspension mounting point (211) and the second suspension mounting point (212) are both arranged in the first mounting plate (21), the second mounting plate (22) is connected with the suspension cushion (1), and a reinforcing rib (23) is arranged between the first mounting plate (21) and the second mounting plate (22).

5. The gearbox suspension assembly according to claim 4, further comprising a spacer (4), one side of the spacer (4) being connected to the first mounting plate (21), the other side of the spacer (4) abutting the gearbox (6) such that the length direction of the first mounting plate (21) is parallel to the axial direction of the gearbox (6).

6. Gearbox suspension assembly according to claim 4, characterized in that the second mounting plate (22) is adapted to be connected with the suspension mat (1) by means of a first fastener (51), and that the second mounting plate (22) is provided with a first waist-shaped hole (221) adapted to the first fastener (51), and that the suspension mat (1) is provided with a first connection hole adapted to the first fastener (51).

7. Gearbox suspension assembly according to claim 6, characterized in that the mounting bracket (3) is adapted to be connected with a side of the suspension mat (1) remote from the suspension bracket (2) by means of a second fastener (52), and that the mounting bracket (3) is provided with a second kidney-shaped hole adapted to the second fastener (52), and that the suspension mat (1) is provided with a second connection hole adapted to the second fastener (52), wherein the length direction of the first kidney-shaped hole (221) is parallel to the axial direction of the gearbox (6), and that the length direction of the second kidney-shaped hole is perpendicular to the length direction of the first kidney-shaped hole (221) and the axial direction of the gearbox (6), respectively.

8. The gearbox suspension assembly of claim 1 wherein the first suspension mounting point (211) and the second suspension mounting point (212) are bolt holes.

9. A powerplant suspension assembly comprising an engine suspension assembly and a gearbox suspension assembly as claimed in any one of claims 1 to 8.

10. A crane comprising the power plant suspension assembly of claim 9.