Construction machine vertical transfer case with parking brake

Abstract

The utility model discloses a kind of engineering machinery vertical transfer case with parking brake, to solve the problem that its four-wheel drive output is easy to cause greater energy consumption when driving on relatively flat road surface, adopt wet parking brake (3) connected with input shaft (7) is further provided on the box (8), the output shaft I (9) outside the box (8) is connected with output shaft II (14) by synchronizer II (13) transmission.

Description

Technical Field

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

[0002] Currently, a vertical transfer case for construction machinery has been publicly disclosed. Its structural features include a housing containing a transmission assembly. This assembly comprises an input shaft, an output shaft I arranged parallel to the input shaft, an input shaft pinion gear on the input shaft, an input shaft large gear on the input shaft, an output shaft I large gear on the output shaft I, 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 connect to output flanges. Therefore, this structure provides four-wheel drive output, which can lead to relatively high energy consumption when driving on relatively flat roads. Summary of the Invention

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

[0004] To achieve the above objectives, this utility model provides a vertical 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 output shaft I arranged parallel to the input shaft, an input shaft pinion gear mounted on the input shaft, an input shaft large gear mounted on the input shaft, an output shaft I large gear mounted on the output shaft I, 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 output flanges. A wet parking brake, consisting of friction plates, a disc spring, a cover plate, a piston, and a cylinder, is also provided outside the housing and is driven by the input shaft. The piston is fitted inside the cylinder, and the cover plate is connected to the housing through the cylinder and a steel sleeve. The piston is equipped with dynamic and static friction plates, which are arranged alternately in parallel. A toothed spline is provided in the inner hole of the steel sleeve, and a toothed spline is also provided on the outer circle of the static friction plate. The static friction plate is installed on the toothed spline in the inner hole of the steel sleeve to form a whole. The inner hole of the toothed spline of the dynamic friction plate is connected to the external spline at one end of the input shaft. A pressure plate is installed at the lower end of the piston, and the lower surface of the pressure plate contacts the dynamic or static friction plate. A disc spring is provided between the cover plate and the piston. A release bolt that can be connected to the upper end of the piston is provided on the cover plate. A synchronizer II is also provided outside the housing, which 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, and the other end of the output shaft II is connected to the output flange.

[0005] 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.

[0006] The synchronizer II is connected to the gear shifting mechanism via a shift fork.

[0007] With this structure, a wet parking brake consisting of friction plates, a disc spring, a cover plate, a piston, and a cylinder is also 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 through the cylinder and a steel sleeve. Dynamic and static friction plates are installed inside the steel sleeve, arranged alternately in parallel. A toothed spline is provided in the inner hole of the steel sleeve, and a toothed spline is also provided on the outer circle of the static friction plate. The static friction plate is installed on the toothed spline inside the steel sleeve to form a whole. The inner hole of the toothed spline of the dynamic friction plate is connected to the external spline at one end of the input shaft. A pressure plate is installed at the lower end of the piston, and the lower surface of the pressure plate contacts the dynamic or static friction plate. A disc spring is provided between the cover plate and the piston. A release bolt that can be connected 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 the synchronizer II is driven by the output shaft II and the other end of the output shaft II is connected to the output flange. This allows for the ability to switch from four-wheel drive to two-wheel drive at any time with minimal energy consumption. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0009] Appendix Figure 1 This is a schematic sectional view of a vertical transfer case for engineering machinery with a parking brake, according to this utility model.

[0010] In the diagram: 1. Brake release bolt housing 2. Cover plate 3. Wet parking brake 4. Disc spring 5. Piston 6. Pressure plate 7. Input shaft 8. Housing 9. Output shaft I 10. Synchronizer I 11. Gear shifting mechanism 12. Shift fork 13. Synchronizer II 14. Output shaft II 15. Cylinder block 16. Steel sleeve. Detailed Implementation

[0011] Appendix Figure 1The present invention discloses a vertical transfer case for engineering machinery with a parking brake, comprising a housing 8, a transmission assembly inside the housing 8, the transmission assembly including an input shaft 7, an output shaft I9 arranged parallel to the input shaft 7, an input shaft pinion gear and an input shaft gear mounted on the input shaft 7, an output shaft I gear and an output shaft I pinion gear mounted on the output shaft I9, and a synchronizer I10 mounted on the output shaft I9. Both ends of the output shaft I9 extend outside the housing 8 and are connected to an output flange. A wet parking brake 3, consisting of friction plates, a disc spring 4, a cover plate 2, a piston 5, and a cylinder 15, is also provided outside the housing 8 and is driven by the input shaft 7. The piston 5 is fitted inside the cylinder 15, and the cover plate 2 is connected to the housing 8 via the cylinder 15 and a steel sleeve 16. Dynamic friction plates and static friction plates are installed inside the steel sleeve 16, arranged alternately and in parallel. A toothed spline is provided in the inner hole of the steel sleeve 16, and a toothed spline is provided on the outer circle of the static friction plate. The upper part is also provided with a toothed spline. The static friction plate is installed on the toothed spline inside the steel sleeve 16 to form an integral part. The inner hole of the toothed spline of the moving friction plate is connected to the outer spline at one end of the input shaft 7 to form an integral part. A pressure plate 6 is installed at the lower end of the piston 5. The lower surface of the pressure plate 6 contacts the moving friction plate or the static friction plate. Multiple butterfly springs 4 are provided between the cover plate 2 and the piston 5, so that one end of the butterfly spring 4 contacts the cover plate 2 and the other end of the butterfly spring 4 contacts the piston 5. A release bolt 1 that can be connected to the upper end of the piston 5 is provided on the cover plate 2. A synchronizer II 13 that is connected to the output shaft I 9 is also provided outside the housing 8. The other end of the synchronizer II 13 is connected to one end of the output shaft II 14, and the other end of the output shaft II 14 is connected to the output flange. The release bolt 1 is set in a cross shape, so that its upper length is less than its lower length, so that the lower part of the release bolt 1 can be connected to the upper end of the piston 5. The synchronizer II 13 is connected to the gear shifting mechanism 11 through the shift fork 12.

Claims

1. A vertical 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 output shaft I arranged parallel to the input shaft, an input shaft pinion gear disposed on the input shaft, an input shaft large gear disposed on the input shaft, an output shaft I large gear disposed on the output shaft I, 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 (8), a wet parking brake (3) is also provided, which is connected to the input shaft (7) and consists of friction plates, a disc spring (4), a cover plate (2), a piston (5), and a cylinder (15). The piston (5) is fitted inside the cylinder (15), and the cover plate (2) is connected to the housing (8) through the cylinder (15) and a steel sleeve (16). Dynamic friction plates and static friction plates are installed inside the steel sleeve (16). The dynamic friction plates and static friction plates are arranged alternately and in parallel. A toothed spline is provided in the inner hole of the steel sleeve (16), and a toothed spline is also provided on the outer circle of the static friction plate. The static friction plate is installed on the toothed spline inside the steel sleeve (16) to form a... The moving friction plate is integrated with the toothed spline inner hole of the input shaft (7) and the external spline of one end. A pressure plate (6) is installed at the lower end of the piston (5). The lower surface of the pressure plate (6) contacts the moving friction plate or the static friction plate. A butterfly spring (4) is provided between the cover plate (2) and the piston (5). A release bolt (1) that can be connected to the upper end of the piston (5) is provided on the cover plate (2). A synchronizer II (13) is also provided outside the housing (8) and is connected to the output shaft I (9). The other end of the synchronizer II (13) is connected to one end of the output shaft II (14) and the other end of the output shaft II (14) is connected to the output flange.

2. A vertical transfer case for engineering machinery with a parking brake according to claim 1, characterized in that: The release bolt (1) 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 (1) can be connected to the upper end of the piston (5).

3. A vertical transfer case for engineering machinery with a parking brake according to claim 1, characterized in that: The synchronizer II (13) is connected to the gear shifting mechanism (11) via a fork (12).

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