Supporting mechanism and engineering machinery

Abstract

The supporting mechanism is used for connecting a control cabin and a vehicle body and comprises a first hinge piece, a second hinge piece and a telescopic assembly, the first hinge piece is hinged to the control cabin, the second hinge piece is hinged to the vehicle body, and the first hinge piece and the second hinge piece are connected to the two opposite end sides of the telescopic assembly respectively. The telescopic assembly adjusts the distance between the first hinge piece and the second hinge piece by adjusting the total length of the telescopic assembly. The telescopic assembly enables the control cabin to be kept at the horizontal position by adjusting the total length of the telescopic assembly, the mode that the vehicle body bottom plate extends to the position under the control cabin to fix the control cabin is replaced, and the weight and cost of the vehicle body are reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of engineering machinery, and in particular, relates to a support mechanism and engineering machinery. Background Art

[0002] For construction machinery such as cranes and excavators, the control room is usually not placed in front of the vehicle body, but installed on the left side of the vehicle body, leaving a certain space for the middle operating mechanism. However, since the control room is far away from the center of the vehicle body, a support is required to fix it to the vehicle body to avoid the impact of shaking during transportation and operation. However, if the vehicle body floor is extended to the bottom of the control room, the weight and cost of the vehicle body will increase. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a support mechanism, which aims to solve the technical problem in the prior art that the vehicle body floor is extended to just below the control room, which increases the weight and cost of the vehicle body.

[0004] The utility model provides a supporting mechanism for connecting a control room and a vehicle body, comprising a first hinge, a second hinge and a telescopic assembly, wherein the first hinge is hinged to the control room, the second hinge is hinged to the vehicle body, the first hinge and the second hinge are respectively connected to opposite end sides of the telescopic assembly, and the telescopic assembly adjusts the total length thereof to adjust the distance between the first hinge and the second hinge.

[0005] Optionally, a first threaded portion is formed at one end of the telescopic component, and at least one of the first hinge and the second hinge is formed with a second threaded portion that is compatible with the first threaded portion. The telescopic component adjusts its total length by rotating to adjust the length of the threaded portion between the first threaded portion and the second threaded portion.

[0006] Optionally, the second threaded portion is formed on the second hinge.

[0007] Optionally, the telescopic assembly includes a connecting rod and a connecting head, a third threaded portion is formed on one end of the connecting rod, and the other end is hinged to the first hinged member, a fourth threaded portion matched with the third threaded portion is formed on one end of the connecting head, and the first threaded portion is formed on the other end, wherein the thread rotation directions of the first threaded portion and the fourth threaded portion are opposite.

[0008] Optionally, the first threaded portion is an internal thread, and the second threaded portion is an external thread.

[0009] Optionally, the third threaded portion is an internal thread, and the fourth threaded portion is an external thread.

[0010] Optionally, a screw nut is provided on the connecting head, and the screw nut is located between the first threaded portion and the fourth threaded portion.

[0011] Optionally, the first hinged member includes a fixed plate, a first hinge ear and a first pin, the first hinge ear is connected to the operating room through the fixed plate, and the first pin passes through the first hinge ear and the telescopic assembly to hinge the telescopic assembly to the operating room.

[0012] Optionally, the second hinged member includes a mounting plate, a second hinge ear and a second pin, the second hinge ear is connected to the vehicle body via the mounting plate, and the second pin passes through the second hinge ear and the telescopic assembly to hinge the telescopic assembly to the vehicle body.

[0013] The utility model also provides an engineering machine, comprising any one of the above-mentioned supporting mechanisms.

[0014] The utility model provides a support mechanism and engineering machinery for connecting a control room and a vehicle body, comprising a first hinge, a second hinge and a telescopic assembly, wherein the first hinge is hinged to the control room, the second hinge is hinged to the vehicle body, the first hinge and the second hinge are respectively connected to opposite ends of the telescopic assembly, and the telescopic assembly adjusts its total length to adjust the distance between the first hinge and the second hinge. In the present application, the telescopic assembly adjusts its total length to keep the control room in a horizontal position, replacing the method of extending the vehicle body bottom plate to fix the control room directly below the control room, thereby reducing the weight and cost of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the support mechanism provided in the embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure of the telescopic assembly provided in an embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the exploded structure of the telescopic assembly provided in the embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of the connection between the supporting mechanisms provided by the embodiment of the present application and the control room and the vehicle body.

[0020] Explanation of the accompanying reference numerals: 1. first hinge; 11. fixing plate; 12. first hinge ear; 13. first pin; 2. second hinge; 21. second threaded portion; 22. mounting plate; 23. second hinge ear; 24. second pin; 3. telescopic assembly; 31. connecting rod; 311. third threaded portion; 32. connecting head; 321. first threaded portion; 322. fourth threaded portion; 323. screw nut; 4. control room; 5. vehicle body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] In the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0023] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0024] Reference Figures 1 to 4 The utility model provides a supporting mechanism for connecting a control room 4 and a vehicle body 5, comprising a first hinge 1, a second hinge 2 and a telescopic assembly 3, wherein the first hinge 1 is hinged to the control room 4, the second hinge 2 is hinged to the vehicle body 5, the first hinge 1 and the second hinge 2 are respectively connected to opposite end sides of the telescopic assembly 3, and the telescopic assembly 3 adjusts the total length thereof to adjust the distance between the first hinge 1 and the second hinge 2.

[0025] In the present application, the telescopic assembly can be implemented as a hydraulic cylinder or a gas cylinder. In order to control the telescopic movement of the hydraulic cylinder or the gas cylinder, a telescopic valve group needs to be combined and a hydraulic pipeline needs to be connected, which is costly and inconvenient to repair in the later stage due to the complexity of the pipeline.

[0026] Therefore, in a preferred embodiment, a first threaded portion 321 is formed on one end of the telescopic assembly 3, and at least one of the first hinge 1 and the second hinge 2 is formed with a second threaded portion 21 adapted to the first threaded portion 321. The telescopic assembly 3 adjusts its total length by rotating to adjust the length of the screwed portion between the first threaded portion 321 and the second threaded portion 21. In order to achieve a stable connection between the control room 4 and the vehicle body 5, the control room 4 and the vehicle body 5 are rotatably connected to adjust the control room 4 in cooperation with the support mechanism of the present application. Exemplarily, the side of the control room 4 close to the vehicle body 5 is rotatably connected to the vehicle body 5, and the first hinge 1 is arranged on the lower surface of the vehicle body 5. When the lower surface of the control room 4 is tilted upward relative to the upper surface of the vehicle body 5, the telescopic assembly 3 needs to be rotated so that the first threaded portion 321 rotates relative to the second threaded portion 21. As the first threaded portion 321 rotates, the length of the mutually screwed portion between the first threaded portion 321 and the second threaded portion 21 increases, that is, the overall length of the telescopic assembly 3 is shortened, and the distance between the first hinge 1 and the second hinge 2 is also shortened. Driven by the telescopic assembly 3, the control room 4 flips downward until the lower surface of the control room 4 is adjusted to be parallel to the upper surface of the vehicle body 5; when the lower surface of the control room 4 is tilted downward relative to the upper surface of the vehicle body 5, the telescopic assembly 3 needs to be rotated so that the first threaded portion 321 rotates relative to the second threaded portion 21. As the first threaded portion 321 rotates, the length of the mutually threaded portion between the first threaded portion 321 and the second threaded portion 21 is shortened, that is, the overall length of the telescopic assembly 3 increases, and the distance between the first hinge 1 and the second hinge 2 also becomes longer. Driven by the telescopic assembly 3, the control room 4 flips upward until the lower surface of the control room 4 is adjusted to be parallel to the upper surface of the vehicle body 5. This embodiment replaces the method of telescoping the hydraulic cylinder by adjusting the length between the telescopic assemblies by threads, so this embodiment can cancel the control valve group, optimize the pipeline, save costs, and have a simple structure and high reliability.

[0027] In some other feasible implementations, the telescopic component is a hinge.

[0028] In addition, in another feasible embodiment, the lower surface of the control room 4 is rotatably connected to the vehicle body 5, and the first hinged member 1 is arranged on the side of the control room 4 close to the vehicle body 5. The principle is similar to that of the above example, so it is not repeated here, and the angle of the control room 4 is also adjusted by rotating the telescopic assembly 3. The specific connection mode of the first hinged member 1 and the control room 4 can be selected according to the specific structure of the control room 4.

[0029] Preferably, refer to Figure 3, the second threaded portion 21 is formed on the second hinge 2. In addition, the second threaded portion 21 can be formed on the first hinge 1. The specific arrangement of the second threaded portion 21 on the first hinge 1 or the second hinge 2 can be adjusted according to actual application conditions.

[0030] In a feasible embodiment, the telescopic assembly 3 includes a connecting rod 31. The second threaded portion 21 can be formed on the first hinge 1 for illustration. In this embodiment, one end of the connecting rod 31 is rotatably connected to the first hinge 1, and the direction of rotation thereof is the central axis of the connecting rod 31 as the rotation axis; the second threaded portion 21 is provided on the other end of the connecting rod 31. Therefore, when the connecting rod 31 is rotated, the overall length between the first hinge 1 and the second hinge 2 can be increased or decreased, thereby achieving adjustment of the control room 4.

[0031] In one possible implementation, refer to Figure 3 The telescopic assembly 3 includes a connecting rod 31 and a connecting head 32. A third threaded portion 311 is formed on one end of the connecting rod 31, and the other end is hinged to the first hinge 1. A fourth threaded portion 322 adapted to the third threaded portion 311 is formed on one end of the connecting head 32, and a first threaded portion 321 is formed on the other end, wherein the first threaded portion 321 and the fourth threaded portion 322 have opposite threaded directions. The second threaded portion 21 can be formed on the first hinge 1 for illustration. Since the first threaded portion 321 and the fourth threaded portion 322 have opposite threaded directions, when the connecting head 32 is rotated, the length of the mutually threaded portion between the first threaded portion 321 and the second threaded portion 21 and the length of the mutually threaded portion between the third threaded portion 311 and the fourth threaded portion 322 will be shortened or increased synchronously. Therefore, compared with only one threaded portion between the connecting rod 31 and the second hinge 2, the present application method can improve the adjustment efficiency by shortening or increasing the two threaded portions synchronously.

[0032] In one feasible embodiment, the first threaded portion 321 is an internal thread, and the second threaded portion 21 is an external thread. Optionally, the first threaded portion 321 is an external thread, and the second threaded portion 21 is an internal thread. In another feasible embodiment, the third threaded portion 311 is an internal thread, and the fourth threaded portion 322 is an external thread. Optionally, the third threaded portion 311 is an external thread, and the fourth threaded portion 322 is an internal thread. The specific arrangement of the threads of the first threaded portion 321, the second threaded portion 21, the third threaded portion 311, and the fourth threaded portion 322 can be adjusted according to the actual application.

[0033] In a feasible embodiment, the connector 32 is provided with a screw nut 323, which is located between the first threaded portion 321 and the fourth threaded portion 322. Since the connector 32 is a torsional force input component, the screw nut 323 is designed to facilitate the rotation of the connector 32 by a wrench.

[0034] In a feasible embodiment, the connecting rod 31 is a hollow structure. This arrangement realizes a lightweight design and facilitates processing of the internal thread on the connecting rod 31, thereby reducing processing costs.

[0035] Reference Figure 1 In a feasible embodiment, the first hinged member 1 includes a fixing plate 11, a first hinge ear 12 and a first pin 13. The first hinge ear 12 is connected to the control room through the fixing plate 11. The first pin 13 passes through the first hinge ear 12 and the telescopic assembly 3 to hinge the telescopic assembly 3 to the control room. The second hinged member 2 includes a mounting plate 22, a second hinge ear 23 and a second pin 24. The second hinge ear 23 is connected to the vehicle body through the mounting plate 22. The second pin 24 passes through the second hinge ear 23 and the telescopic assembly 3 to hinge the telescopic assembly 3 to the vehicle body. The fixing plate 11 is provided with a plurality of waist-shaped holes, and the fixing bolts pass through the waist-shaped holes to connect to the control room 4; the mounting plate 22 is provided with a plurality of through holes, and the fixing bolts pass through the waist-shaped holes to connect to the vehicle body 5. The above are just examples of the specific structures of the first hinged member 1 and the second hinged member 2. Other embodiments of hingedly connecting the telescopic assembly 3 to the control room 4 and the vehicle body 5 should all be within the protection scope of this application.

[0036] The utility model also provides an engineering machine, comprising any of the above-mentioned supporting mechanisms. The engineering machine may be equipment such as a crane, an excavator, etc. For the structures of other parts of the engineering machine, please refer to the prior art and will not be described in detail here.

[0037] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A support mechanism for connecting a control room (4) and a vehicle body (5), characterized in that: The invention comprises a first hinge (1), a second hinge (2) and a telescopic assembly (3), wherein the first hinge (1) is hinged to the control room (4), the second hinge (2) is hinged to the vehicle body (5), the first hinge (1) and the second hinge (2) are respectively connected to opposite ends of the telescopic assembly (3), and the telescopic assembly (3) adjusts its total length to adjust the distance between the first hinge (1) and the second hinge (2).

2. The support mechanism according to claim 1, characterized in that: A first threaded portion (321) is formed at one end of the telescopic assembly (3), and at least one of the first hinge (1) and the second hinge (2) is formed with a second threaded portion (21) adapted to the first threaded portion (321). The telescopic assembly (3) adjusts its total length by rotating to adjust the length of the threaded portion between the first threaded portion (321) and the second threaded portion (21).

3. The support mechanism according to claim 2, characterized in that: The second threaded portion (21) is formed on the second hinged component (2).

4. The support mechanism according to claim 3, characterized in that: The telescopic assembly (3) comprises a connecting rod (31) and a connecting head (32), wherein a third threaded portion (311) is formed on one end of the connecting rod (31), and the other end is hinged to the first hinged member (1), and a fourth threaded portion (322) matched with the third threaded portion (311) is formed on one end of the connecting head (32), and the first threaded portion (321) is formed on the other end, wherein the threaded direction of the first threaded portion (321) and the fourth threaded portion (322) are opposite.

5. The support mechanism according to claim 4, characterized in that: The first threaded portion (321) is an internal thread, and the second threaded portion (21) is an external thread.

6. The support mechanism according to claim 4, characterized in that: The third threaded portion (311) is an internal thread, and the fourth threaded portion (322) is an external thread.

7. The support mechanism according to claim 4, characterized in that: The connecting head (32) is provided with a screw nut (323), and the screw nut (323) is located between the first threaded portion (321) and the fourth threaded portion (322).

8. The support mechanism according to claim 1, characterized in that: The first hinged member (1) comprises a fixing plate (11), a first hinge ear (12) and a first pin (13); the first hinge ear (12) is connected to the operating room via the fixing plate (11); the first pin (13) passes through the first hinge ear (12) and the telescopic assembly (3) to hinge the telescopic assembly (3) to the operating room.

9. The support mechanism according to claim 1, characterized in that: The second hinged member (2) comprises a mounting plate (22), a second hinge ear (23) and a second pin (24); the second hinge ear (23) is connected to the vehicle body via the mounting plate (22); the second pin (24) passes through the second hinge ear (23) and the telescopic assembly (3) to hinge the telescopic assembly (3) to the vehicle body.

10. An engineering machine, characterized in that: Comprising the supporting mechanism as described in any one of claims 1-9.

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