A harvester cab rollover device

Abstract

This utility model discloses a harvester cab tilting device, comprising a round steel bar, a gas spring, and a steel wire rope installed between the cab and the chassis frame. One end of the round steel bar is installed in the middle of the bottom of the cab, and the other end is detachably installed on the bottom of the cab or the chassis. The rear end of the cab is detachably connected to the chassis frame, and the front end is hinged to the chassis frame. The harvester cab tilting device provided by this utility model can fix the cab in a fixed position after tilting it at a certain angle, facilitating maintenance of the cab's bottom components, reducing the number of inspection ports on the cab floor, and improving the cab's sealing performance to the bottom components. During maintenance, only parts at one end need to be disassembled, and then the cab is tilted at a certain angle around the hinge point at the other end. The cab is then fixed in its position by the support of the round steel bar and gas spring at the bottom of the cab, as well as the pull of the steel wire rope, reducing maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of cabs, and more particularly to a harvester cab tilting device. Background Technology

[0002] Currently, the common cab structure of rice harvesters in China is a fixed mechanical structure. The cab and chassis frame are usually connected together by fasteners and shock absorbers to ensure the reliability of the cab installation.

[0003] However, since rice harvesters are typically laid out with components such as the engine, gearbox, hydraulic components, and wiring located under the cab that may require maintenance, the cab floor and side panels have access ports and mounting openings of varying sizes. To maintain these components, the entire cab assembly needs to be disassembled for each repair, which is difficult and costly. Furthermore, the addition of access ports to the floor reduces the sealing performance, and the limited space in the access ports prevents the maintenance of certain parts. Utility Model Content

[0004] The purpose of this utility model is to provide a harvester cab tilting device that can tilt the cab for maintenance, eliminating the need for an inspection port on the cab floor, improving the floor's sealing performance, and facilitating maintenance work.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] This utility model provides a harvester cab tilting device, including a round steel bar, a gas spring and a steel wire rope installed between the cab and the chassis frame. One end of the round steel bar is installed in the middle of the bottom of the cab, and the other end is detachably installed on the bottom of the cab or the chassis.

[0007] The rear end of the cab is detachably connected to the chassis frame, and the front end is hinged to the chassis frame.

[0008] After the rear end of the cab is detached from the chassis, the front end of the cab rotates around the hinge point. The cab is fixed after being flipped up by the round steel installed on the chassis frame, the support of the gas spring, and the pulling of the steel wire rope.

[0009] Optionally, one end of the gas spring is hinged to the gas spring cab hinge point seat in the middle of the cab, and the other end is hinged to the gas spring chassis hinge point seat at the front end of the chassis frame. One end of the wire rope is installed on the cab connecting plate at the rear end of the cab, and the other end is installed on the chassis frame connecting plate at the rear end of the chassis frame.

[0010] Optionally, the front end of the cab is hinged to the chassis frame via shock absorber one, the rear end of the cab is mounted on the chassis frame via shock absorber two and fixing bolts, and several buffer pads are installed in the middle part of the cab.

[0011] Optionally, a limiting protection plate is also provided in the middle of the rear end of the cab. One end of the limiting protection plate is hinged to the cab connecting seat on the cab, and the other end is movably installed on the chassis frame connecting seat on the chassis frame.

[0012] Optionally, one end of the limit protection plate is an elongated hole and the other end is a round hole. The round hole is installed on the cab connecting seat by bolts, and the elongated hole is movably connected to the limit bolt on the chassis frame connecting seat.

[0013] Optionally, one end of the round steel is mounted on the round steel hinge point seat of the cab, and the other end is set on the fixing buckle of the cab when the cab is not tilted, and on the chassis round steel hinge point seat of the chassis frame when the cab is tilted.

[0014] Optionally, a retaining ring is provided at one end of the round steel on the chassis round steel hinge point seat, and the chassis round steel hinge point seat is provided with a limiting round hole one and a limiting round hole two. A connecting channel is provided between the limiting round hole one and the limiting round hole two. The diameter of the limiting round hole one and the width of the connecting channel are greater than the diameter of the retaining ring, and the diameter of the limiting round hole two is smaller than the diameter of the retaining ring.

[0015] Optionally, one end of the wire rope is mounted on the cab connecting plate, and the other end is mounted on the chassis frame connecting plate.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] 1. The harvester cab tilting device provided by this utility model can fix the cab in a fixed position after tilting at a certain angle, which facilitates the maintenance of the cab bottom device, reduces the number of inspection ports on the cab floor, and improves the sealing of the cab to the bottom device. During maintenance, only the parts at one end need to be disassembled, and then the cab is tilted at a certain angle around the hinge point at the other end. The cab is then fixed in position by the support of the round steel and gas spring at the bottom of the cab and the pulling of the wire rope, which reduces the difficulty of maintenance. The gas spring can provide assistance when the cab is tilted, reducing the labor intensity of the workers.

[0018] 2. The harvester cab tilting device provided by this utility model is equipped with a limit protection plate at the rear end of the cab. One end of the limit protection plate is movably connected to the bolt on the chassis frame connecting seat. Without interfering with the use of the buffer components, it improves the safety of the connection between the cab and the chassis frame. Several buffer pads are set in the middle of the cab to ensure the comfort of the cab. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the usage state of the harvester cab tilting device in this utility model embodiment;

[0020] Figure 2 This is a schematic diagram of the harvester cab structure in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the circular steel structure in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the limiting protection plate in an embodiment of this utility model;

[0023] Figure 5 This is an enlarged structural schematic diagram of the limiting protection plate in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cab; 2. Chassis frame; 3. Cab connecting plate; 4. Chassis frame connecting plate; 5. Wire rope; 6. Cab round steel hinge point seat; 7. Chassis round steel hinge point seat; 8. Round steel; 9. Retaining ring; 10. Fixing buckle; 11. Limiting round hole one; 12. Limiting round hole two; 13. Gas spring cab hinge point seat; 14. Gas spring chassis hinge point seat; 15. Gas spring; 16. Limiting protection plate; 17. Cab connecting seat; 18. Chassis frame connecting seat; 19. Oblong hole; 20. Shock absorber one; 21. Shock absorber two; 22. Buffer pad. Detailed Implementation

[0026] The technical solutions of the present invention 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 invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment provides a harvester cab tilting device, including a round steel bar 8, a gas spring 15 and a steel wire rope 5 disposed between the cab 1 and the chassis frame 2. One end of the round steel bar 8 is installed in the middle of the bottom of the cab 1, and the other end is detachably installed on the bottom of the cab 1 or on the chassis frame 2.

[0030] The rear end of the cab 1 is detachably connected to the chassis frame 2, and the front end of the cab 1 is hinged to the chassis frame 2. When it is necessary to repair the device under the cab 1, the connecting piece on the rear end of the cab 1 and the chassis frame 2 is removed, and then the cab 1 is rotated to a suitable angle. The other end of the round steel 8 is installed on the chassis frame 2, and the gas spring 15 and the steel wire rope 5 located between the cab 1 and the chassis frame 2 are tightened, thereby fixing the position of the cab 1 and facilitating the repair of the device at the bottom of the cab 1.

[0031] One end of the gas spring 15 is installed at the front end of the chassis frame 2, and the other end is installed in the middle of the cab 1. The two ends of the wire rope 5 are respectively hinged to the rear end of the cab 1 and the rear end of the chassis frame 2. After the cab 1 is rotated to a certain angle, its position is fixed by the gas spring 15, the wire rope 5 and the round steel 8, which facilitates maintenance.

[0032] This embodiment has a simple structure. It uses the round steel bar 8 in the middle as a support, and the steel wire rope 5 at the rear end and the gas spring 15 at the front end to pull and temporarily fix the cab 1. After maintenance, it is only necessary to remove the round steel bar 8 from one end of the chassis frame 2 and install it at the bottom of the cab 1, remove the support of the round steel bar 8, and then install the connecting parts between the rear end of the cab 1 and the chassis frame 2 for normal use.

[0033] Example 2

[0034] like Figure 1 , Figure 2 As shown, this embodiment provides a harvester cab tilting device based on Embodiment 1. The front end of the cab 1 is hinged to the chassis frame 2 via shock absorber 1 20, and the rear end of the cab 1 is detachably connected to the chassis frame 2 via shock absorber 21. Several buffer pads 22 are also provided between the bottom of the cab 1 and the chassis frame 2. Through the buffering effect of shock absorber 1 20, shock absorber 21 and buffer pads 22, the comfort of the cab 1 is improved.

[0035] like Figure 1 , Figure 4 , Figure 5 As shown, a limit protection plate 16 is also provided at the middle position of the rear end of the cab 1. One end of the limit protection plate 16 is hinged to the cab connecting seat 17, and the other end is movably connected to the chassis frame connecting seat 18. One end of the limit protection plate 16 has a round hole, and the other end has an elongated hole 19. The end of the limit protection plate 16 with the round hole is hinged to the cab connecting seat 17 by bolts, and the end of the limit protection plate 16 with the elongated hole 19 is installed on the chassis frame connecting seat 18 by bolts. The limit protection plate 16 can move relative to the chassis frame connecting seat 18 to avoid interference with the buffer components.

[0036] like Figure 1 , Figure 3 As shown, one end of the round steel bar 8 is hinged to the round steel hinge point seat 6 in the cab, and the other end is secured to the fixing buckle 10 when the cab 1 is in use. When the cab 1 needs to be fixed at a certain tilting angle, the other end is installed on the round steel hinge point seat 7 on the chassis. A retaining ring 9 is provided at the end of the round steel bar 8 that is installed on the round steel hinge point seat 7 on the chassis. The central axis of the retaining ring 9 is perpendicular to the central axis of the round steel bar 8, and the diameter of the retaining ring 9 is larger than the diameter of the round steel bar 8. When the retaining ring 9 is installed on the round steel hinge point seat 7 on the chassis, it serves as a limit, and when the round steel bar 8 is installed on the round steel hinge point seat 7 on the chassis, it serves as a support, so that the cab 1 and the chassis frame 2 have a certain angle, which facilitates the maintenance of the internal equipment.

[0037] The chassis round steel hinge point seat 7 is provided with a limiting round hole 11 and a limiting round hole 12. The limiting round hole 11 and the limiting round hole 12 are connected by a connecting channel. The diameter of the limiting round hole 11 and the width of the connecting channel are both greater than the diameter of the retaining ring 9, and the diameter of the limiting round hole 12 is smaller than the diameter of the retaining ring 9. The retaining ring 9 passes through the limiting round hole 11 and then moves to the limiting round hole 12 through the connecting channel for use.

[0038] One end of the gas spring 15 is hinged to the gas spring cab hinge point seat 13, and the other end is hinged to the gas spring chassis hinge point seat 14, which is located at the front end of the chassis frame 2. The gas spring cab hinge point seat 13 is located in the middle of the cab 1 and behind the cab round steel hinge point seat 6. One end of the wire rope 5 is hinged to the cab connecting plate 3, and the other end is hinged to the chassis frame connecting plate 4.

[0039] When the cab 1 needs to be flipped for maintenance, remove the shock absorber 21 and the lower protection plate at the rear of the cab 1, then flip the cab 1 forward. The gas spring 15 under the cab 1 will open up, and the rear end of the cab 1 will straighten. After flipping the cab 1 to a certain angle, remove one end of the round steel 8 from the fixing buckle 10 of the cab 1 and install it on the limiting hole 2 of the chassis round steel hinge point seat 7 to complete the flipping of the cab 1. Then, repair the device inside the chassis frame 2. After the repair is completed, remove the round steel 8 from the chassis round steel hinge point seat 7 and install it on the fixing buckle 10. Then restore the cab 1 to its original state and install the shock absorber 21 and the limiting protection plate 16.

[0040] When repairing and maintaining components under the cab 1, the process can be easily completed by flipping the cab 1, significantly saving maintenance time compared to traditional methods. The safety of the cab flipping is ensured by steel wire rope 5, gas spring 15, and round steel bar 8. This method of maintenance reduces the number of inspection ports on the cab 1 floor, improving the cab 1's sealing and enhancing the driver's experience. A retaining ring 9 is welded to one end of the round steel bar 8; the diameter of the retaining ring 9 is smaller than the diameter of the limiting circular hole 12, ensuring safety during maintenance. Fixing buckles 10 on the cab 1 ensure the stability of the round steel bar 8 during normal operation. Gas springs 15 at the bottom of the cab provide assistance when the operator flips the cab, reducing the operator's workload. Shock absorbers are located at the front and rear of the cab 1, with multiple buffer pads 22 in the middle, ensuring driving comfort.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A harvester cab tilting device, characterized in that, It includes round steel bars, gas springs, and steel wire ropes installed between the cab and the chassis frame. One end of the round steel bar is installed in the middle of the bottom of the cab, and the other end is detachably installed on the bottom of the cab or the chassis. The rear end of the cab is detachably connected to the chassis frame, and the front end is hinged to the chassis frame. After the rear end of the cab is detached from the chassis, the front end of the cab rotates around the hinge point. The cab is fixed after being flipped up by the round steel installed on the chassis frame, the support of the gas spring, and the pulling of the steel wire rope.

2. The harvester cab tilting device according to claim 1, characterized in that, One end of the gas spring is hinged to the gas spring cab hinge point seat in the middle of the cab, and the other end is hinged to the gas spring chassis hinge point seat at the front end of the chassis frame. One end of the wire rope is installed on the cab connecting plate at the rear end of the cab, and the other end is installed on the chassis frame connecting plate at the rear end of the chassis frame.

3. The harvester cab tilting device according to claim 1, characterized in that, The front end of the cab is hinged to the chassis frame via shock absorber one, and the rear end of the cab is mounted on the chassis frame via shock absorber two and fixing bolts. Several buffer pads are installed in the middle part of the cab.

4. The harvester cab tilting device according to claim 1, characterized in that, A limiting protection plate is also provided in the middle of the rear end of the cab. One end of the limiting protection plate is hinged to the cab connecting seat on the cab, and the other end is movably installed on the chassis frame connecting seat on the chassis frame.

5. The harvester cab tilting device according to claim 4, characterized in that, The limiting protection plate has an elongated hole at one end and a round hole at the other end. The round hole is installed on the cab connecting seat by bolts, and the elongated hole is movably connected to the limiting bolt on the chassis frame connecting seat.

6. The harvester cab tilting device according to claim 1, characterized in that, One end of the round steel is installed on the round steel hinge point seat in the cab, and the other end is set on the fixed buckle in the cab when the cab is not tilted, and on the chassis round steel hinge point seat of the chassis frame when the cab is tilted.

7. The harvester cab tilting device according to claim 6, characterized in that, The round steel bar is provided with a retaining ring at one end on the chassis round steel hinge point seat. The chassis round steel hinge point seat is provided with a limiting round hole one and a limiting round hole two. The limiting round hole one and the limiting round hole two are connected by a connecting channel. The diameter of the limiting round hole one and the width of the connecting channel are greater than the diameter of the retaining ring, and the diameter of the limiting round hole two is smaller than the diameter of the retaining ring.

8. The harvester cab tilting device according to claim 1, characterized in that, One end of the wire rope is installed on the cab connecting plate, and the other end is installed on the chassis frame connecting plate.

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