Gearbox suspension structure and engineering machine

Abstract

This utility model belongs to the field of engineering machinery technology, and discloses a gearbox mounting structure and engineering machinery. The gearbox mounting structure includes a bracket assembly, a fixing assembly, and a shock absorption assembly. The bracket assembly includes at least two brackets, which are spaced apart along the circumference of the gearbox and form through holes. The gearbox passes through the through holes. The fixing assembly includes fixing members that correspond one-to-one with the brackets, and the brackets are fixedly connected to the gearbox through the fixing members. The shock absorption assembly includes shock absorbers that are corresponding one-to-one with the brackets, and the brackets are connected to the vehicle frame through the shock absorbers. The engineering machinery includes the gearbox mounting structure described above, and also includes a chassis, with the vehicle frame mounted on the chassis. The gearbox mounting structure provided by this utility model can effectively improve shock absorption performance and has high reliability and stability.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a gearbox mounting structure and engineering machinery. Background Technology

[0002] Underground ore transport operations commonly utilize underground ore transport cars. These cars are typically characterized by their low profile and compact structure. The installation of their gearboxes is constrained by the limited space within the chassis, the harsh underground environment, and high reliability requirements. The installation must meet requirements for compactness, maintainability, and shock resistance. Underground ore transport cars typically employ a split dual-transmission system, where the torque converter and gearbox are installed independently and connected via a driveshaft and piping.

[0003] In existing technologies, the gearbox of underground mining trucks is mounted on a bracket, which is then bolted to the overall vehicle frame. This design is simple and low-cost. However, in the existing structure, the bracket only serves to support the gearbox. On the one hand, it lacks reliable and effective vibration damping measures, and vibrations from the vehicle frame are transmitted to the gearbox through the bracket, causing vibrations during gearbox operation. On the other hand, the bracket is susceptible to the superposition of vibrations from different directions, which can generate resonance and amplify the transmission of vibrations. All of these factors affect the reliability and stability of the gearbox installation and support. Utility Model Content

[0004] The purpose of this invention is to provide a gearbox mounting structure that can effectively improve shock absorption performance and has high reliability and stability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A gearbox mounting structure, comprising:

[0007] A bracket assembly includes at least two brackets, the at least two brackets being spaced apart along the circumference of the gearbox and forming through holes, the gearbox passing through the through holes;

[0008] The fixed assembly includes fixing members that are correspondingly provided with the bracket, and the bracket is fixedly connected to the gearbox through the fixing members;

[0009] The shock absorption assembly includes shock absorbers that are correspondingly mounted on the bracket, and the bracket is connected to the vehicle frame through the shock absorbers.

[0010] Preferably, the bracket includes an upper bracket and a lower bracket, the lower bracket being located below the upper bracket, and the upper bracket and the lower bracket together forming the through hole;

[0011] The fasteners include a first fastener and a second fastener. The upper bracket is fixedly connected to the gearbox via the first fastener, and the lower bracket is fixedly connected to the gearbox via the second fastener.

[0012] The shock absorber includes a first shock absorber and a second shock absorber. The first shock absorber is disposed on the upper bracket, and the second shock absorber is disposed on the lower bracket. The upper bracket is connected to the vehicle frame through the first shock absorber, and the lower bracket is connected to the vehicle frame through the second shock absorber.

[0013] Preferably, the upper bracket has a first groove on the side facing the lower bracket, and the lower bracket has a second groove on the side facing the upper bracket. The first groove and the second groove together form the through hole, and the gearbox is supported on the second groove.

[0014] Preferably, the first fastener includes a first bolt and a first nut, the gearbox has a first mounting hole, the upper bracket has a first fixing hole, and the first bolt passes through the first mounting hole and the first fixing hole and is threadedly connected to the first nut.

[0015] The second fastener includes a second bolt and a second nut. The gearbox has a second mounting hole, and the lower bracket has a second fixing hole. The second bolt passes through the second mounting hole and the second fixing hole and is threadedly connected to the second nut.

[0016] Preferably, the gearbox is provided with a first abutment plate and a second abutment plate at intervals, the first mounting hole is formed in the first abutment plate, the second mounting hole is formed in the second abutment plate, the first abutment plate abuts against the upper bracket, and the second abutment plate abuts against the lower bracket.

[0017] Preferably, the first shock absorber includes a first shock absorber connected to the vehicle frame via a first connector, and the second shock absorber includes a second shock absorber connected to the vehicle frame via a second connector.

[0018] Preferably, the first connector includes a third bolt and a third nut, the first shock absorber has a third mounting hole, the frame has a third fixing hole, and the third bolt passes through the third mounting hole and the third fixing hole and is threadedly connected to the third nut.

[0019] The second connector includes a fourth bolt and a fourth nut. The second shock absorber has a fourth mounting hole, and the frame has a fourth fixing hole. The fourth bolt passes through the fourth mounting hole and the fourth fixing hole and is threadedly connected to the fourth nut.

[0020] Preferably, the upper support includes an upper main board and a first connecting plate fixedly disposed on opposite sides of the upper main board, the first connecting plate being provided with the first shock absorber; the lower support includes a lower main board and a second connecting plate fixedly disposed below the lower main board, the second connecting plate being provided with the second shock absorber;

[0021] The upper main board and the lower main board together form the through hole; the upper main board is fixedly connected to the gearbox through the first fixing member, and the lower main board is fixedly connected to the gearbox through the second fixing member.

[0022] Preferably, a first rib is fixedly provided between the upper main board and the first connecting plate, and a second rib is fixedly provided between the lower main board and the second connecting plate.

[0023] The purpose of this utility model is to provide an engineering machinery, which includes the above-mentioned gearbox mounting structure, which can effectively improve shock absorption performance and has strong reliability and stability.

[0024] An engineering machine includes a gearbox mounting structure as described in any of the preceding claims, and also includes a chassis on which the vehicle frame is mounted.

[0025] Beneficial effects:

[0026] The gearbox mounting structure provided by this utility model improves performance by suppressing resonance and reducing vibration transmission. Specifically, the bracket assembly includes at least two brackets, the fixing assembly includes fixing members corresponding to each bracket, and the damping assembly includes damping members corresponding to each bracket. At least two brackets are connected to the gearbox via corresponding fixing members, and each bracket is equipped with a damping member, which connects the bracket to the vehicle frame. Each bracket is independent and does not contact the others, preventing mutual interference of vibrations between brackets when the vehicle frame vibrates, thus mitigating resonance to some extent. Furthermore, each bracket further absorbs the received vibrations through corresponding damping members, further improving damping performance and minimizing the possibility of vibration transmission to the gearbox.

[0027] The engineering machinery provided by this utility model includes the aforementioned gearbox mounting structure, which improves performance by suppressing resonance and vibration transmission, thereby ensuring the reliability and stability of gearbox installation and support. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the gearbox mounting structure provided by this utility model for mounting a gearbox;

[0029] Figure 2 This is an exploded view of the gearbox mounting structure provided by this utility model;

[0030] Figure 3 This is a schematic diagram of the gearbox mounting structure provided by this utility model installed on the vehicle frame.

[0031] In the picture:

[0032] 1. Bracket assembly; 101. Through hole; 11. Upper bracket; 111. Upper main board; 1111. First slot; 112. First connecting plate; 113. First rib; 12. Lower bracket; 121. Lower main board; 1211. Second slot; 122. Second connecting plate; 123. Second rib;

[0033] 21. First fastener; 211. First bolt; 212. First nut; 22. Second fastener; 221. Second bolt; 222. Second nut;

[0034] 31. First shock absorber; 32. Second shock absorber; 33. First connector; 331. Third bolt; 332. Third nut; 34. Second connector; 341. Fourth bolt; 342. Fourth nut;

[0035] 4. Gearbox; 41. First abutment; 42. Second abutment;

[0036] 5. Frame. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] This embodiment provides a gearbox 4-mount structure. (Refer to...) Figures 1 to 3 As shown, the transmission 4 mounting structure includes a bracket assembly 1, a fixing assembly, and a shock absorber assembly. The bracket assembly 1 includes at least two brackets, which are spaced apart circumferentially along the transmission 4 and form through holes 101 through which the transmission 4 passes. The fixing assembly includes fasteners corresponding to the brackets, and the brackets are fixedly connected to the transmission 4 via the fasteners. The shock absorber assembly includes shock absorbers corresponding to the brackets, and the brackets are connected to the vehicle frame 5 via the shock absorbers.

[0042] In this embodiment, the gearbox 4 mounting structure improves performance by suppressing resonance and reducing vibration transmission. Specifically, the bracket assembly 1 includes at least two brackets, the fixing assembly includes fixing members corresponding to each bracket, and the damping assembly includes damping members corresponding to each bracket. At least two brackets are connected to the gearbox 4 via corresponding fixing members, and each bracket is equipped with a damping member, which connects the bracket to the vehicle frame 5. Each bracket is independent and does not contact the others, preventing mutual interference of vibrations between brackets when the vehicle frame 5 vibrates, thus mitigating resonance to some extent. Furthermore, each bracket further absorbs the received vibrations through corresponding damping members, further improving damping performance and minimizing the possibility of vibration transmission to the gearbox 4.

[0043] In this embodiment, two brackets are provided. The brackets include an upper bracket 11 and a lower bracket 12, with the lower bracket 12 located below the upper bracket 11. The upper bracket 11 and the lower bracket 12 together form a through hole 101. The fasteners include a first fastener 21 and a second fastener 22. The upper bracket 11 is fixedly connected to the gearbox 4 via the first fastener 21, and the lower bracket 12 is fixedly connected to the gearbox 4 via the second fastener 22. The damping components include a first damper 31 and a second damper 32. The first damper 31 is located on the upper bracket 11, and the second damper 32 is located on the lower bracket 12. The upper bracket 11 is connected to the vehicle frame 5 via the first damper 31, and the lower bracket 12 is connected to the vehicle frame 5 via the second damper 32. Specifically, the upper bracket 11 and the lower bracket 12 together form the through hole 101. The gearbox 4 passes through the through hole 101 during installation, and the gearbox 4 can be reliably supported on the lower bracket 12.

[0044] Specifically, the upper bracket 11 has a first groove 1111 on the side facing the lower bracket 12, and the lower bracket 12 has a second groove 1211 on the side facing the upper bracket 11. The first groove 1111 and the second groove 1211 together form a through hole 101, and the gearbox 4 is supported on the second groove 1211. In this embodiment, both the first groove 1111 and the second groove 1211 are set to be arc-shaped to fit the shape of the gearbox 4. This setting can achieve a close fit between the first groove 1111 and the second groove 1211 and the outer periphery of the gearbox 4 as much as possible, improving the reliability and stability of the installation and fixation of the gearbox 4.

[0045] In this embodiment, the first fixing member 21 includes a first bolt 211 and a first nut 212. The gearbox 4 has a first mounting hole, and the upper bracket 11 has a first fixing hole. The first bolt 211 passes through the first mounting hole and the first fixing hole and is threadedly connected to the first nut 212. The second fixing member 22 includes a second bolt 221 and a second nut 222. The gearbox 4 has a second mounting hole, and the lower bracket 12 has a second fixing hole. The second bolt 221 passes through the second mounting hole and the second fixing hole and is threadedly connected to the second nut 222. In this embodiment, the number of first mounting holes, first fixing holes, first bolts 211, and first nuts 212 are provided in multiple corresponding positions. The multiple first mounting holes are divided into two groups, and the two groups of first mounting holes are symmetrically distributed on opposite sides of the gearbox 4. The multiple first fixing holes are also divided into two groups, and the two groups of first fixing holes are symmetrically distributed on opposite sides of the upper bracket 11. The number of second mounting holes, second fixing holes, second bolts 221, and second nuts 222 are provided in multiple corresponding positions. Multiple second mounting holes are divided into two groups, and the two groups of second mounting holes are symmetrically distributed on opposite sides of the gearbox 4; multiple second fixing holes are divided into two groups, and the two groups of second fixing holes are symmetrically distributed on opposite sides of the upper bracket 11.

[0046] In some other alternative embodiments, the first fastener 21 may be configured as only a first bolt 211, with the first fixing hole correspondingly configured as a threaded hole, and the first bolt 211 passing through the first mounting hole and threadedly connected to the first fixing hole. The second fastener 22 may be configured as only a second bolt 221, with the second fixing hole correspondingly configured as a threaded hole, and the second bolt 221 passing through the second mounting hole and threadedly connected to the second fixing hole.

[0047] In this embodiment, the gearbox 4 is provided with a first abutment plate 41 and a second abutment plate 42 spaced apart. A first mounting hole is formed in the first abutment plate 41, and a second mounting hole is formed in the second abutment plate 42. The first abutment plate 41 abuts against the upper bracket 11, and the second abutment plate 42 abuts against the lower bracket 12. The arrangement of the first abutment plate 41 and the second abutment plate 42 further increases the contact area between the gearbox 4 and the upper bracket 11 and the lower bracket 12, ensuring the installation and positioning of the gearbox 4, and also providing reliable opening space for the first mounting hole and the second mounting hole, so that the first bolt 211 and the second bolt 221 can pass through.

[0048] In this embodiment, the first shock absorber 31 includes a first shock absorber, which is connected to the frame 5 via a first connector 33. The second shock absorber 32 includes a second shock absorber, which is connected to the frame 5 via a second connector 34.

[0049] Specifically, the upper bracket 11 has multiple first shock absorbers, each corresponding to a mounting point on the frame 5. The first shock absorber is connected to the frame 5 via a first connector 33, thus achieving the connection between the upper bracket 11 and the frame 5. The lower bracket 12 has multiple second shock absorbers, each corresponding to a mounting point on the frame 5. The second shock absorber is connected to the frame 5 via a second connector 34, thus achieving the connection between the lower bracket 12 and the frame 5.

[0050] Specifically, in this embodiment, the first connecting member 33 includes a third bolt 331 and a third nut 332. The first shock absorber has a third mounting hole, and the frame 5 has a third fixing hole. The third bolt 331 passes through the third mounting hole and the third fixing hole and is threadedly connected to the third nut 332. The second connection includes a fourth bolt 341 and a fourth nut 342. The second shock absorber has a fourth mounting hole, and the frame 5 has a fourth fixing hole. The fourth bolt 341 passes through the fourth mounting hole and the fourth fixing hole and is threadedly connected to the fourth nut 342. Specifically, each first shock absorber has a third mounting hole located at the center of the first shock absorber. Each second shock absorber has a fourth mounting hole located at the center of the second shock absorber.

[0051] In some other alternative embodiments, the first connector 33 may also be configured as only a third bolt 331, with the third fixing hole correspondingly configured as a threaded hole, and the third bolt 331 passing through the third mounting hole and threadedly connected to the third fixing hole. The second connector 34 may also be configured as only a fourth bolt 341, with the fourth fixing hole correspondingly configured as a threaded hole, and the fourth bolt 341 passing through the fourth mounting hole and threadedly connected to the fourth fixing hole.

[0052] In this embodiment, the upper bracket 11 includes an upper main board 111 and a first connecting plate 112 fixedly disposed on opposite sides of the upper main board 111, with a first shock absorber 31 disposed on the first connecting plate 112; the lower bracket 12 includes a lower main board 121 and a second connecting plate 122 fixedly disposed below the lower main board 121, with a second shock absorber 32 disposed on the second connecting plate 122. The upper main board 111 and the lower main board 121 together form a through hole 101. The upper main board 111 is fixedly connected to the gearbox 4 via a first fixing member 21, and the lower main board 121 is fixedly connected to the gearbox 4 via a second fixing member 22. Specifically, the first connecting plate 112 has a first connecting hole corresponding to the first shock absorber 31, and the first shock absorber 31 is installed in the first connecting hole. The second connecting plate 122 has a second connecting hole corresponding to the second shock absorber 32, and the second shock absorber 32 is installed in the second connecting hole.

[0053] Specifically, the first connecting plate 112 is symmetrically arranged on opposite sides of the upper main board 111, and the second connecting plate 122 is symmetrically arranged on opposite sides of the lower main board 121.

[0054] Furthermore, a first rib 113 is fixedly provided between the upper main board 111 and the first connecting plate 112, and a second rib 123 is fixedly provided between the lower main board 121 and the second connecting plate 122. Specifically, the provision of the first rib 113 can further improve the strength between the upper main board 111 and the first connecting plate 112, and the provision of the second rib 123 can further improve the strength between the lower main board 121 and the second connecting plate 122.

[0055] Optionally, the upper main board 111, the first connecting plate 112, and the first rib 113 are welded together, and the lower main board 121, the second connecting plate 122, and the second rib 123 are welded together. This arrangement ensures the overall strength of the upper bracket 11 and the lower bracket 12 and reduces the introduction of external connectors.

[0056] This embodiment also provides a piece of construction machinery. The construction machinery includes the aforementioned gearbox mounting structure and a chassis, with the frame 5 mounted on the chassis. By applying the aforementioned gearbox mounting structure to the construction machinery, all the beneficial effects of the aforementioned gearbox mounting structure can be achieved, namely, improving performance by suppressing resonance and vibration transmission, thereby ensuring the reliability and stability of the gearbox 4 installation and support.

[0057] Engineering machinery can be mining vehicles used for underground operations, or other types of machinery; no further restrictions are imposed here.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gearbox mounting structure, characterized in that, include: The bracket assembly (1) includes at least two brackets, the at least two brackets being distributed circumferentially along the gearbox (4) and forming through holes (101), the gearbox (4) passing through the through holes (101); The fixed assembly includes a fixing member that corresponds to the bracket one by one, and the bracket is fixedly connected to the gearbox (4) through the fixing member; The shock absorption assembly includes shock absorbers that are correspondingly mounted on the bracket, and the bracket is connected to the vehicle frame (5) through the shock absorbers.

2. The gearbox mounting structure according to claim 1, characterized in that, The bracket includes an upper bracket (11) and a lower bracket (12), the lower bracket (12) being located below the upper bracket (11), and the upper bracket (11) and the lower bracket (12) together forming the through hole (101); The fasteners include a first fastener (21) and a second fastener (22). The upper bracket (11) is fixedly connected to the gearbox (4) through the first fastener (21), and the lower bracket (12) is fixedly connected to the gearbox (4) through the second fastener (22). The shock absorber includes a first shock absorber (31) and a second shock absorber (32). The first shock absorber (31) is disposed on the upper bracket (11), and the second shock absorber (32) is disposed on the lower bracket (12). The upper bracket (11) is connected to the vehicle frame (5) through the first shock absorber (31), and the lower bracket (12) is connected to the vehicle frame (5) through the second shock absorber (32).

3. The gearbox mounting structure according to claim 2, characterized in that, The upper bracket (11) has a first groove (1111) on the side facing the lower bracket (12), and the lower bracket (12) has a second groove (1211) on the side facing the upper bracket (11). The first groove (1111) and the second groove (1211) together form the through hole (101), and the gearbox (4) is supported on the second groove (1211).

4. The gearbox mounting structure according to claim 2, characterized in that, The first fixing member (21) includes a first bolt (211) and a first nut (212). The gearbox (4) has a first mounting hole, and the upper bracket (11) has a first fixing hole. The first bolt (211) passes through the first mounting hole and the first fixing hole and is threadedly connected to the first nut (212). The second fastener (22) includes a second bolt (221) and a second nut (222). The gearbox (4) has a second mounting hole, and the lower bracket (12) has a second fixing hole. The second bolt (221) passes through the second mounting hole and the second fixing hole and is threadedly connected to the second nut (222).

5. The gearbox mounting structure according to claim 4, characterized in that, The gearbox (4) is provided with a first abutment plate (41) and a second abutment plate (42) at intervals. The first mounting hole is opened in the first abutment plate (41), and the second mounting hole is opened in the second abutment plate (42). The first abutment plate (41) abuts against the upper bracket (11), and the second abutment plate (42) abuts against the lower bracket (12).

6. The gearbox mounting structure according to claim 2, characterized in that, The first shock absorber (31) includes a first shock absorber, which is connected to the vehicle frame (5) via a first connector (33). The second shock absorber (32) includes a second shock absorber, which is connected to the vehicle frame (5) via a second connector (34).

7. The gearbox mounting structure according to claim 6, characterized in that, The first connector (33) includes a third bolt (331) and a third nut (332). The first shock absorber has a third mounting hole, and the frame (5) has a third fixing hole. The third bolt (331) passes through the third mounting hole and the third fixing hole and is threadedly connected to the third nut (332). The second connector (34) includes a fourth bolt (341) and a fourth nut (342). The second shock absorber has a fourth mounting hole, and the frame (5) has a fourth fixing hole. The fourth bolt (341) passes through the fourth mounting hole and the fourth fixing hole and is threadedly connected to the fourth nut (342).

8. The gearbox mounting structure according to claim 2, characterized in that, The upper bracket (11) includes an upper main board (111) and a first connecting plate (112) fixedly disposed on opposite sides of the upper main board (111), and the first connecting plate (112) is provided with the first shock absorber (31); the lower bracket (12) includes a lower main board (121) and a second connecting plate (122) fixedly disposed below the lower main board (121), and the second connecting plate (122) is provided with the second shock absorber (32); The upper main board (111) and the lower main board (121) together form the through hole (101); the upper main board (111) is fixedly connected to the gearbox (4) through the first fixing member (21), and the lower main board (121) is fixedly connected to the gearbox (4) through the second fixing member (22).

9. The gearbox mounting structure according to claim 8, characterized in that, A first rib (113) is fixedly provided between the upper main board (111) and the first connecting plate (112), and a second rib (123) is fixedly provided between the lower main board (121) and the second connecting plate (122).

10. An engineering machinery, characterized in that, The vehicle includes the gearbox mounting structure as described in any one of claims 1-9, and also includes a chassis, with the frame (5) mounted on the chassis.

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