Construction machine with a parking brake and a horizontal transfer case

Abstract

The utility model discloses an engineering machinery horizontal transfer case with parking brake, to solve the problem that four -wheel -drive output is easy to cause the problem of large energy consumption when driving on the relatively flat road surface, parking brake (4) connected with input shaft (18) is further arranged outside the box (1), and output shaft I (20) outside the box (17) is in transmission connection with output shaft II (3) through synchronizer II (22).

Description

Technical Field

[0001] This utility model relates to a transfer case, and more particularly to a horizontal transfer case for engineering machinery with a parking brake, comprising a housing, an input shaft, an intermediate shaft, an output shaft I, an input shaft pinion, an intermediate shaft large gear I, an intermediate shaft pinion, an intermediate shaft large gear II, an output shaft I large gear, an output shaft I pinion, and a synchronizer I. Background Technology

[0002] Currently, a horizontal transfer case for construction machinery has been publicly disclosed on the market. Its structural features include: a housing containing a transmission assembly, which includes an input shaft, an intermediate shaft and an output shaft I arranged parallel to the input shaft, an input shaft pinion gear on the input shaft, an intermediate shaft large gear I, an intermediate shaft pinion gear, an intermediate shaft large gear II, an output shaft I large gear, an output shaft I pinion gear, and a synchronizer I on the output shaft I. Both ends of the output shaft I extend out of the housing and are connected to the output flange. Therefore, this structure provides four-wheel drive output, which can easily lead to high energy consumption when driving on relatively flat roads. Summary of the Invention

[0003] The purpose of this invention is to provide a horizontal transfer case for engineering machinery with a parking brake that can switch from four-wheel drive to two-wheel drive at any time and consumes less energy.

[0004] To achieve the above objectives, this utility model discloses a horizontal transfer case for engineering machinery with a parking brake, comprising a housing, a transmission assembly inside the housing, the transmission assembly including an input shaft, an intermediate shaft and an output shaft I arranged parallel to the input shaft, an input shaft pinion gear mounted on the input shaft, an intermediate shaft large gear I, an intermediate shaft pinion gear, and an intermediate shaft large gear II mounted on the intermediate shaft, an output shaft I large gear and an output shaft I pinion gear mounted on the output shaft I, and a synchronizer I mounted on the output shaft I. Both ends of the output shaft I extend out of the housing and are connected to an output flange. A parking brake, consisting of a friction plate, a disc spring, a cover plate, a piston, and a cylinder, is also disposed outside the housing and is driven by the input shaft. The piston is fitted inside the cylinder. The cover plate is connected to the housing via the cylinder and steel sleeve. Steel plate I is installed inside the steel sleeve and fixed to the input shaft already installed inside the housing. Steel plate II is fixed at the bottom inside the steel sleeve. Friction plates that can contact steel plate I are provided on the upper surface of steel plate II. A wave spring is fitted on the input shaft between steel plate I and steel plate II. A pressure plate is installed at the lower end of the piston. Friction plates that can contact steel plate I are provided on the lower surface of the pressure plate. A butterfly spring is provided between the cover plate and the piston. A release bolt that can connect to the upper end of the piston is provided on the cover plate. A synchronizer II is also provided outside the housing and is drivenly connected to the output shaft I. The other end of the synchronizer II is drivenly connected to one end of the output shaft II. The other end of the output shaft II is connected to the output flange.

[0005] The wave spring is placed inside the friction plate between steel plate I and steel plate II, so that one end of the wave spring contacts steel plate I and the other end of the wave spring contacts the small pressure plate that has been set inside steel plate II.

[0006] An external spline is provided on the upper part of the input shaft to accommodate the steel sheet I, and a groove is provided on the input shaft below the external spline to accommodate the small pressure plate.

[0007] The brake release bolt is designed in a cross shape, with its upper length being shorter than its lower length, so that the lower part of the brake release bolt can be connected to the upper end of the piston.

[0008] The synchronizer II is connected to the gear shifting mechanism via a shift fork.

[0009] With this structure, a parking brake consisting of friction plates, a disc spring, a cover plate, a piston, and a cylinder is installed outside the housing and driven by the input shaft. The piston is fitted inside the cylinder, and the cover plate is connected to the housing via the cylinder and a steel sleeve. Steel plate I is installed inside the steel sleeve and fixed to the input shaft already installed inside the housing. Steel plate II is fixed at the bottom inside the steel sleeve, and friction plates that contact steel plate I are provided on the upper surface of steel plate II. A wave spring is fitted on the input shaft between steel plates I and II. A pressure plate is installed at the lower end of the piston, and friction plates that contact steel plate I are provided on the lower surface of the pressure plate. A disc spring is installed between the cover plate and the piston. A brake release bolt that connects to the upper end of the piston is provided on the cover plate. A synchronizer II is also installed outside the housing and driven by the output shaft I. The other end of synchronizer II is driven by one end of the output shaft II, and the other end of the output shaft II is connected to the output flange. This achieves the goal of being able to switch from four-wheel drive to two-wheel drive at any time with low energy consumption. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0011] Appendix Figure 1 This is a schematic front sectional view of a horizontal transfer case for engineering machinery with a parking brake, according to this utility model.

[0012] In the diagram: 1. Gear shifting mechanism 2. Shift fork 3. Output shaft II 4. Parking brake 5. Disc spring 6. Brake release bolt 7. Cover plate 8. Cylinder block 9. Piston 10. Pressure plate 11. Friction plate 12. Steel plate I 13. Steel sleeve 14. Steel plate II 15. Small pressure plate 16. Wave spring 17. Housing 18. Input shaft 19. Intermediate shaft 20. Output shaft I 21. Synchronizer I 22. Synchronizer II. Detailed Implementation

[0013] Appendix Figure 1 The present invention relates to a horizontal transfer case for engineering machinery with a parking brake, comprising a housing 17, a transmission assembly disposed within the housing 17, the transmission assembly comprising an input shaft 18, an intermediate shaft 19 arranged parallel to the input shaft 18, an output shaft I 20, an input shaft pinion gear disposed on the input shaft 18, an intermediate shaft large gear I, an intermediate shaft pinion gear, and an intermediate shaft large gear II disposed on the intermediate shaft 19, an output shaft I large gear and an output shaft I pinion gear disposed on the output shaft I 20, and a synchronizer I 21 disposed on the output shaft I 20. Both ends of the output shaft I 20 extend out of the housing 17 and are connected to the output flange. Next, a parking brake 4, consisting of a friction plate 11, a disc spring 5, a cover plate 7, a piston 9, and a cylinder 8, is also provided outside the housing 17 and is connected to the input shaft 18. The piston 9 is fitted inside the cylinder 8, and the cover plate 7 is connected to the housing 17 through the cylinder 8 and the steel sleeve 13. A steel plate I 12 is installed inside the steel sleeve 13 and is fixed to the input shaft 18 already installed inside the housing 17. A steel plate II 14 is fixed at the bottom inside the steel sleeve 13, and a friction plate 11 that can contact the steel plate I 12 is provided on the upper surface of the steel plate II 14. A parking brake 4 is fitted on the input shaft 18 between the steel plate I 12 and the steel plate II 14. A wave spring 16 is provided. A pressure plate 10 is installed at the lower end of the piston 9. A friction plate 11 that can contact the steel plate I 12 is provided on the lower surface of the pressure plate 10. A butterfly spring 5 is provided between the cover plate 7 and the piston 9, with one end of the butterfly spring 5 contacting the cover plate 7 and the other end of the butterfly spring 5 contacting the piston 9. A release bolt 6 that can be connected to the upper end of the piston 9 is provided on the cover plate 7. A synchronizer II 22 that is drivenly connected to the output shaft I 20 is also provided outside the housing 17. The other end of the synchronizer II 22 is drivenly connected to one end of the output shaft II 3, and the other end of the output shaft II 3 is connected to the output flange. The wave spring 16 is used to drive the piston 9. Spring 16 is placed inside friction plate 11 between steel plate I 12 and steel plate II 14, so that one end of wave spring 16 contacts steel plate I 12 and the other end of wave spring 16 contacts small pressure plate 15 already set inside steel plate II 14; an external spline is provided on the upper part of the input shaft 18 to accommodate steel plate I 12, and a groove is provided on the input shaft 18 below the external spline to accommodate small pressure plate 15; the release brake bolt 6 is set in a cross shape, with its upper length being less than its lower length, so that the lower part of the release brake bolt 6 can be connected to the upper end of piston 9; the synchronizer II 22 is connected to the gear shifting mechanism 1 through shift fork 2.

Claims

1. A horizontal transfer case for engineering machinery with a parking brake, comprising a housing, a transmission assembly disposed within the housing, the transmission assembly comprising an input shaft, an intermediate shaft and an output shaft I arranged parallel to the input shaft, an input shaft pinion gear disposed on the input shaft, an intermediate shaft large gear I disposed on the intermediate shaft, an intermediate shaft pinion gear, an intermediate shaft large gear II disposed on the intermediate shaft, an output shaft I large gear, an output shaft I pinion gear disposed on the output shaft I, and a synchronizer I disposed on the output shaft I, the two ends of the output shaft I extending out of the housing and connected to an output flange, characterized in that: Outside the housing (17), a parking brake (4) consisting of a friction plate (11), a disc spring (5), a cover plate (7), a piston (9), and a cylinder (8) is also provided, which is connected to the input shaft (18) for transmission. The piston (9) is fitted inside the cylinder (8), and the cover plate (7) is connected to the housing (17) through the cylinder (8) and the steel sleeve (13). A steel plate I (12) is installed inside the steel sleeve (13), and the steel plate I (12) is fixed on the input shaft (18) that is already set inside the housing (17). A steel plate II (14) is fixed at the bottom inside the steel sleeve (13), and a friction plate (11) that can contact the steel plate I (12) is provided on the upper surface of the steel plate II (14). A wave spring (16) is fitted on the input shaft (18) between (12) and steel plate II (14). A pressure plate (10) is installed at the lower end of the piston (9). A friction plate (11) that can contact steel plate I (12) is provided on the lower surface of the pressure plate (10). A butterfly spring (5) is provided between the cover plate (7) and the piston (9). A release bolt (6) that can be connected to the upper end of the piston (9) is provided on the cover plate (7). A synchronizer II (22) is also provided outside the housing (17) and is connected to the output shaft I (20). The other end of the synchronizer II (22) is connected to one end of the output shaft II (3). The other end of the output shaft II (3) is connected to the output flange.

2. A horizontal transfer case for engineering machinery with parking brake according to claim 1, characterized in that: The wave spring (16) is placed in the friction plate (11) between steel plate I (12) and steel plate II (14), so that one end of the wave spring (16) contacts steel plate I (12) and the other end of the wave spring (16) contacts the small pressure plate (15) that has been set in steel plate II (14).

3. A horizontal transfer case for engineering machinery with a parking brake according to claim 1, characterized in that: An external spline is provided on the upper part of the input shaft (18) to accommodate the steel sheet I (12), and a groove is provided on the input shaft (18) below the external spline to accommodate the small pressure plate (15).

4. A horizontal transfer case for engineering machinery with a parking brake according to claim 1, characterized in that: The release bolt (6) is set in a cross shape, with its upper length being less than its lower length, so that the lower part of the release bolt (6) can be connected to the upper end of the piston (9).

5. A horizontal transfer case for engineering machinery with a parking brake according to claim 1, characterized in that: The synchronizer II (22) is connected to the gear shifting mechanism (1) via the shift fork (2).

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