A four-in-two-out gearbox for construction machines

Abstract

The utility model relates to technical field of gearbox, specifically disclose a four -in -two -out gearbox for engineering machinery, including box and the power input shaft and power output shaft that are respectively located in the both ends of box inner chamber, and the clutch shaft one and clutch shaft two that are parallel to each other are equipped between the power input shaft and power output shaft of box inner chamber location, fixedly installed have clutch gear ring one and rotatoryly installed have linkage gear one on the power input shaft, and the clutch gear ring one and linkage gear one between are equipped with clutch one, the clutch gear ring one is connected with clutch shaft one, clutch shaft two transmission through input side transmission mechanism, clutch shaft one, clutch shaft two are connected with power output shaft transmission through output side transmission mechanism, linkage gear one, clutch shaft one, clutch shaft two are connected through transmission clutch mechanism between. Make engineering machinery have four forward gears and two reverse gears power output, so as to meet the demand of different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, specifically a four-forward and two-reverse gearbox for engineering machinery. Background Technology

[0002] Construction machinery, such as loaders and forklifts, operates under complex and varied conditions, frequently requiring operation and transfer at different loads and speeds. This necessitates that their transmission systems possess multiple forward and reverse gears to adapt to various operating conditions, including heavy-load starts, low-speed operations, and high-speed travel, thereby improving operational efficiency and energy economy.

[0003] Currently, some construction machinery transmissions have fewer gears, such as only two forward and one reverse or three forward and one reverse, which makes it difficult to meet the needs of complex working conditions. This results in the engine power not being effectively utilized under all working conditions, or excessive fuel consumption under certain working conditions.

[0004] Therefore, there is an urgent need to develop a gearbox that can provide four forward gears and two reverse gears to better meet the actual operating needs of construction machinery. Utility Model Content

[0005] The purpose of this utility model is to provide a four-forward and two-reverse gearbox for engineering machinery, which solves the problem that existing gearboxes for engineering machinery have few gears and cannot meet the needs of different working conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a four-forward, two-reverse gearbox for engineering machinery, comprising a housing and a power input shaft and a power output shaft respectively disposed at both ends of the housing cavity. A first clutch shaft and a second clutch shaft, parallel to each other, are disposed within the housing cavity between the power input shaft and the power output shaft. A first clutch gear is fixedly mounted on the power input shaft, and a first linkage gear is rotatably mounted thereon. A first clutch is disposed between the first clutch gear and the first linkage gear. The first clutch gear is connected to the first clutch shaft and the second clutch shaft via an input-side transmission mechanism. The first clutch shaft and the second clutch shaft are connected to the power output shaft via an output-side transmission mechanism. The first linkage gear, the first clutch shaft, and the second clutch shaft are connected via a transmission clutch mechanism.

[0007] Preferably, the input-side transmission mechanism includes a second linkage gear rotatably mounted on one end of the clutch shaft and meshing with the clutch ring gear, and a fourth linkage gear rotatably mounted on one end of the clutch shaft and meshing with the clutch ring gear.

[0008] Preferably, the output-side transmission mechanism includes a linkage gear three rotatably mounted on the other end of the clutch shaft one, a linkage gear five rotatably mounted on the other end of the clutch shaft two and meshing with the linkage gear three, and a fixed gear two fixedly mounted on the power output shaft and drivingly connected to the linkage gear five.

[0009] Preferably, the inner cavity of the housing is provided with a rotating shaft located between the power output shaft and the second clutch shaft, and a fixed gear is fixedly installed on the rotating shaft to mesh with the fifth linkage gear and the second fixed gear.

[0010] Preferably, the transmission clutch mechanism includes a clutch gear ring two fixedly installed in the middle of the clutch shaft one and meshing with the linkage gear one, and a clutch gear ring three fixedly installed in the middle of the clutch shaft two and meshing with the clutch gear ring two. Clutch two and clutch three are respectively provided between the linkage gear two and the linkage gear three and the clutch gear ring two. Clutch four and clutch five are respectively provided between the linkage gear four and the linkage gear five and the clutch gear ring three.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model relates to a four-forward and two-reverse gearbox for construction machinery, which can provide four forward gears and two reverse gears to meet the different working conditions of construction machinery. Attached Figure Description

[0012] Figure 1 This is a schematic diagram illustrating the working principle of this utility model.

[0013] In the diagram: 1-Box housing; 2-Power input shaft; 3-Power output shaft; 4-Clutch shaft one; 5-Clutch shaft two; 6-Rotating shaft; 7-Clutch one; 8-Clutch two; 9-Clutch three; 10-Clutch four; 11-Clutch five; 12-Clutch gear ring one; 13-Clutch gear ring two; 14-Clutch gear ring three; 15-Linking gear one; 16-Linking gear two; 17-Linking gear three; 18-Linking gear four; 19-Linking gear five; 20-Fixed gear one; 21-Fixed gear two. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 This utility model provides a technical solution: a four-forward, two-reverse gearbox for engineering machinery, comprising a housing 1 and a power input shaft 2 and a power output shaft 3 respectively disposed at both ends of the inner cavity of the housing 1. A clutch shaft 4 and a clutch shaft 5 are located between the power input shaft 2 and the power output shaft 3 and are arranged parallel to each other within the inner cavity of the housing 1. A clutch ring gear 12 is fixedly mounted on the power input shaft 2, and a linkage gear 15 is rotatably mounted thereon. A clutch 7 is provided between the clutch ring gear 12 and the linkage gear 15. The clutch ring gear 12 is connected to the clutch shaft 4 and the clutch shaft 5 via an input-side transmission mechanism. The clutch shaft 4 and the clutch shaft 5 are connected to the power output shaft 3 via an output-side transmission mechanism. The linkage gear 15, the clutch shaft 4, and the clutch shaft 5 are connected by a transmission clutch mechanism. The input-side transmission mechanism includes a linkage gear 16 rotatably mounted on one end of the clutch shaft 4 and meshing with the clutch ring gear 12, and a linkage gear 18 rotatably mounted on one end of the clutch shaft 5 and meshing with the clutch ring gear 12. The output-side transmission mechanism includes a third linkage gear 17 rotatably mounted on the other end of clutch shaft 4, a fifth linkage gear 19 rotatably mounted on the other end of clutch shaft 5 and meshing with the third linkage gear 17, and a second fixed gear 21 fixedly mounted on the power output shaft 3 and drivingly connected to the fifth linkage gear 19. A rotating shaft 6 is located in the inner cavity of the housing 1 between the power output shaft 3 and the second clutch shaft 5. A second fixed gear 20 meshing with the fifth linkage gear 19 and the second fixed gear 21 is fixedly mounted on the rotating shaft 6. The transmission clutch mechanism includes a second clutch gear ring 13 fixedly mounted in the middle of clutch shaft 4 and meshing with the first linkage gear 15, and a third clutch gear ring 14 fixedly mounted in the middle of clutch shaft 5 and meshing with the second clutch gear ring 13. Clutches 2 8 and 3 9 are respectively located between the second linkage gear 16, the third linkage gear 17 and the second clutch gear ring 13, and clutches 4 10 and 5 11 are respectively located between the fourth linkage gear 18, the fifth linkage gear 19 and the third clutch gear ring 14.

[0016] In summary, ① close clutch 2 (8) and clutch 5 (11) to enter first gear.

[0017] At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, the clutch gear ring 12 drives the linkage gear 2 16 to rotate in reverse, and the linkage gear 2 16 drives the clutch gear ring 2 13 to rotate in reverse synchronously through the clutch 2 8; the clutch gear ring 2 13 drives the clutch gear ring 3 14 to rotate forward. The clutch gear ring 314 drives the linkage gear 519 to rotate synchronously forward through the clutch 511; The linkage gear 519 drives the fixed gear 120 to rotate in reverse, the fixed gear 120 drives the fixed gear 21 to rotate in the forward direction, and the fixed gear 21 drives the power output shaft 3 to rotate in the forward direction synchronously, thus realizing the forward power output.

[0018] ② Close clutch 2 (8) and clutch 3 (9) to enter second gear.

[0019] At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, and the clutch gear ring 12 drives the linkage gear 2 16 to rotate in reverse; the linkage gear 2 16 drives the linkage gear 3 17 to rotate in reverse synchronously through the clutch 2 8 and the clutch 3 9. Linkage gear 317 drives linkage gear 519 to rotate forward, and linkage gear 519 drives fixed gear 120 to rotate in reverse; fixed gear 120 drives fixed gear 21 to rotate forward, and fixed gear 221 drives power output shaft 3 to rotate forward synchronously, thus realizing forward power output.

[0020] ③ Engage clutches 1-7 and 5-11 to shift into third gear. At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, and the clutch gear ring 12 drives the linkage gear 15 to rotate forward synchronously through the clutch 7. The first linkage gear 15 drives the second clutch gear ring 13 to rotate in reverse, while the second clutch gear ring 13 drives the third clutch gear ring 14 to rotate in the forward direction. The clutch gear ring 314 drives the linkage gear 519 to rotate synchronously forward through the clutch 511; The linkage gear 519 drives the fixed gear 120 to rotate in reverse; the fixed gear 120 drives the fixed gear 21 to rotate in the forward direction, and the fixed gear 21 drives the power output shaft 3 to rotate in the forward direction synchronously, thus realizing the forward power output.

[0021] ④ Engage clutch 1 (7) and clutch 3 (9) to enter forward fourth gear.

[0022] At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, and the clutch gear ring 12 drives the linkage gear 15 to rotate forward synchronously through the clutch 7. The first linkage gear 15 drives the second clutch gear ring 13 to reverse, and the second clutch gear ring 13 then drives the third linkage gear 17 to reverse synchronously through the third clutch 9. Linkage gear 317 drives linkage gear 519 to rotate forward; The linkage gear 519 drives the fixed gear 120 to rotate in reverse; the fixed gear 120 drives the fixed gear 21 to rotate in the forward direction, and the fixed gear 21 drives the power output shaft 3 to rotate in the forward direction synchronously, thus realizing the forward power output.

[0023] ⑤ Close clutch 4 (10) and clutch 5 (11) to enter reverse first gear.

[0024] At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, and the clutch gear ring 12 drives the linkage gear 4 18 to rotate in reverse. Linkage gear 418 drives clutch ring gear 314 to rotate synchronously in reverse through clutch 410, and clutch ring gear 314 drives linkage gear 519 to rotate synchronously in reverse through clutch 511. Linkage gear 519 drives fixed gear 120 to rotate forward; fixed gear 120 drives fixed gear 21 to rotate in reverse, and fixed gear 21 drives power output shaft 3 to rotate in reverse synchronously, thus realizing the reverse power output.

[0025] ⑥ Engage clutch 4 (10) and clutch 3 (9) to shift into reverse second gear. At this time, the power input shaft 2 drives the clutch gear ring 12 to rotate forward, and the clutch gear ring 12 drives the linkage gear 4 18 to rotate in reverse. The linkage gear 418 drives the clutch gear ring 314 to rotate in reverse synchronously through the clutch 410, while the clutch gear ring 314 drives the clutch gear ring 213 to rotate in the forward direction. Clutch ring gear 2 13 drives linkage gear 3 17 to rotate synchronously forward through clutch 3 9; Linkage gear 317 drives linkage gear 519 to rotate in reverse, and linkage gear 519 drives fixed gear 120 to rotate in the forward direction; fixed gear 120 drives fixed gear 21 to rotate in reverse, and fixed gear 221 drives power output shaft 3 to rotate in reverse synchronously, thus realizing the reverse power output.

[0026] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-forward, two-reverse gearbox for engineering machinery, comprising a housing (1) and a power input shaft (2) and a power output shaft (3) respectively disposed at both ends of the inner cavity of the housing (1), characterized in that: The inner cavity of the housing (1) is provided with a clutch shaft one (4) and a clutch shaft two (5) that are parallel to each other, located between the power input shaft (2) and the power output shaft (3). A clutch gear ring (12) is fixedly mounted on the power input shaft (2) and a linkage gear (15) is rotatably mounted thereon. A clutch (7) is provided between the clutch gear ring (12) and the linkage gear (15). The first clutch gear ring (12) is connected to the first clutch shaft (4) and the second clutch shaft (5) via the input side transmission mechanism; The first clutch shaft (4) and the second clutch shaft (5) are connected to the power output shaft (3) through the output side transmission mechanism; The first linkage gear (15), the first clutch shaft (4), and the second clutch shaft (5) are connected by a transmission clutch mechanism.

2. The four-forward, two-reverse gearbox for engineering machinery according to claim 1, characterized in that: The input-side transmission mechanism includes a second linkage gear (16) rotatably mounted on one end of the clutch shaft (4) and meshing with the clutch ring gear (12), and a fourth linkage gear (18) rotatably mounted on one end of the clutch shaft (5) and meshing with the clutch ring gear (12).

3. A four-forward, two-reverse gearbox for engineering machinery according to claim 2, characterized in that: The output-side transmission mechanism includes a linkage gear three (17) rotatably mounted on the other end of the clutch shaft one (4), a linkage gear five (19) rotatably mounted on the other end of the clutch shaft two (5) and meshing with the linkage gear three (17), and a fixed gear two (21) fixedly mounted on the power output shaft (3) and drivingly connected to the linkage gear five (19).

4. A four-forward, two-reverse gearbox for engineering machinery according to claim 3, characterized in that: The housing (1) has a rotating shaft (6) located between the power output shaft (3) and the clutch shaft (5). A fixed gear (20) that meshes with the linkage gear (19) and the fixed gear (21) is fixedly installed on the rotating shaft (6).

5. A four-forward, two-reverse gearbox for engineering machinery according to claim 3, characterized in that: The transmission clutch mechanism includes a clutch gear ring two (13) fixedly installed in the middle of the clutch shaft one (4) and meshing with the linkage gear one (15), and a clutch gear ring three (14) fixedly installed in the middle of the clutch shaft two (5) and meshing with the clutch gear ring two (13). The linkage gear two (16), the linkage gear three (17) and the clutch gear ring two (13) are respectively provided with clutch two (8) and clutch three (9). The linkage gear four (18), the linkage gear five (19) and the clutch gear ring three (14) are respectively provided with clutch four (10) and clutch five (11).

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