Front-connected and rear-connected seedling pulling chain box of coarse cereal header

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly belongs to a front-connected rear-connected grain pulling chain box of a coarse cereal header, which comprises a box shell, an input transverse shaft, a wheel shaft integrated output shaft and an output chain wheel. A through hole is formed in the box shell; an input transverse shaft is transversely arranged in the box shell, and an input chain wheel is arranged on the input transverse shaft outside the box shell; transmission assemblies are installed on the two sides of the input transverse shaft in the box shell respectively. According to the transmission assembly, a bevel gear is installed on an input transverse shaft, a first bearing is installed outside the bevel gear, and the outer ring of the first bearing makes contact with an installation box shell. A wheel shaft integrated output shaft is meshed with the bevel gear, the wheel shaft integrated output shaft is used for reversing the transmission force of the input transverse shaft, and a shaft body of the wheel shaft integrated output shaft extends out of the box shell and is provided with a second bearing through a bearing seat; and the shaft body is also connected with an output chain wheel. According to the utility model, through the improvement of the structure of the box shell, the through holes can be formed in the box shell, so that the box body can be suitable for being mounted on two sides.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically to the front-to-rear connecting chain box for grain harvesters. Background Technology

[0002] In crop harvesting headers, there is a reeling chain box structure. Existing reeling chain boxes are not universally compatible across multiple harvesting header models, resulting in high production and installation costs. Taking a grain harvesting header as an example, existing reeling chain box structures have mounting holes on the mounting shell, corresponding to specific installation positions within the header. This necessitates careful alignment of the mounting holes and positions during installation. Furthermore, after installation, the reeling chain box needs to connect to the reeling chain drive. Since the two reeling chains are divided into high and low chains, the high and low installation positions of the reeling chains must also be considered during installation. More specifically, if the mounting shell of the reeling chain box has mounting holes on only one side, and these holes correspond to the high and low installation positions of the reeling chains, two symmetrical reeling chain boxes need to be designed to meet installation and usage requirements. Therefore, both production and installation costs are high. Utility Model Content

[0003] This utility model provides a front-to-rear connecting chain box for grain harvesting platforms, aiming to reduce production costs and facilitate installation.

[0004] The front-to-rear connecting chain box for miscellaneous grain harvesting platform includes a box shell, an input horizontal shaft, an integrated output shaft with wheel and axle, and an output sprocket.

[0005] The casing has through holes;

[0006] Inside the housing, an input horizontal shaft is installed horizontally, and an input sprocket is installed on the input horizontal shaft outside the housing;

[0007] Transmission components are installed on both sides of the input horizontal shaft inside the housing.

[0008] The transmission assembly consists of a bevel gear mounted on the input horizontal shaft, a first bearing mounted outside the bevel gear, and the outer ring of the first bearing contacting the housing. An integrated wheel and axle output shaft meshes with the bevel gear, and the integrated wheel and axle output shaft reverses the power transmission direction of the input horizontal shaft. The shaft of the integrated wheel and axle output shaft extends out of the housing and is mounted with a second bearing via a bearing seat. An output sprocket is also connected to the shaft.

[0009] Furthermore, the casing material is aluminum alloy.

[0010] Furthermore, the casing is provided with an oil filling hole and is fitted with an oil filling hole plug.

[0011] Furthermore, mounting platforms are formed at the four corners of the casing, and through holes are made on the mounting platforms.

[0012] Furthermore, the bearing housing is divided into high sprocket bearing housing and low sprocket bearing housing.

[0013] Furthermore, the bevel gear and the output sprocket are respectively mounted via flat keys.

[0014] Furthermore, a retaining ring and an oil seal are installed at the first bearing; protective plates are installed at both ends of the housing; and a retaining ring and an oil seal are also installed on the second bearing.

[0015] Furthermore, a nut is installed at the upper end of the shaft.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, by improving the material of the box shell, the reeling chain box is made lighter, which reduces the front weight of the cutter when the vehicle is in use, further preventing tipping and fully ensuring safety.

[0018] 2. By improving the structure of the box shell, through holes can be provided on the box shell. The design of the through holes makes the box body suitable for installation on both sides. This utility model of a reeling chain box can be used for harvesting headers with left and right side transmission, reducing production costs. During installation, there is no need to distinguish between different styles of reeling chain boxes, and both can be installed and used.

[0019] 3. In this utility model, the power transmission efficiency is guaranteed through a reasonable transmission structure design. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram illustrating the connection and use of this utility model;

[0023] In the diagram: 1. Housing; 1.1. Through hole; 2. Input horizontal shaft; 3. Integrated wheel and axle output shaft; 4. Output sprocket; 5. Input sprocket; 6. Bevel gear; 7. First bearing; 8. Second bearing; 9. Retaining ring one; 10. Oil seal one; 11. Protective plate; 12. Oil filling hole plug; 13. High sprocket bearing seat; 14. Low sprocket bearing seat; 15. Flat key; 16. Retaining ring two; 17. Oil seal two; 18. Nut; 19. Reeling chain. Detailed Implementation

[0024] The technical solution of this utility model will be further explained and described below through specific embodiments.

[0025] Example 1

[0026] Referring to the attached drawings, this utility model provides a front-to-rear connected grain harvester chain box, including a box shell 1, an input horizontal shaft 2, an integrated wheel and axle output shaft 3, and an output sprocket 4; the box shell 1 is made of aluminum alloy; the box shell 1 is provided with an oiling hole and is fitted with an oiling hole plug 12.

[0027] Mounting platforms are formed at the four corners of the casing 1, and through holes 1.1 are opened on the mounting platforms;

[0028] Inside the housing 1, an input horizontal shaft 2 is installed horizontally, and an input sprocket 5 is installed on the input horizontal shaft 2 outside the housing 1.

[0029] Transmission components are installed on both sides of the input horizontal shaft 2 inside the housing 1;

[0030] The transmission assembly comprises a bevel gear 6 mounted on the input horizontal shaft 2, a first bearing 7 mounted outside the bevel gear 6, and a housing 1 with its outer ring in contact with the housing 1; an integrated output shaft 3 meshes with the bevel gear 6, and the integrated output shaft 3 reverses the power transmission of the input horizontal shaft 2; the shaft of the integrated output shaft 3 extends out of the housing 1 and is fitted with a second bearing 8 via a bearing seat; an output sprocket 4 is also connected to the shaft; the bearing seats are divided into a high sprocket bearing seat 13 and a low sprocket bearing seat 14, thus accommodating high and low chain installations of the reeling chain. A nut 18 is mounted on the upper end of the shaft.

[0031] At the first bearing 7, a retaining ring 9 and an oil seal 10 are installed; at both ends of the housing 1, protective plates 11 are installed respectively.

[0032] The bevel gear 6 and the output sprocket 4 are respectively mounted via a flat key 15. The output sprocket 4 has grooves on both sides that mate with the straight openings of the high sprocket bearing seat 13 and the low sprocket bearing seat 14, effectively protecting the inner oil seal and bearing. The second bearing is also equipped with a second retaining ring 16 and a second oil seal 17.

[0033] In use, the box shell is fixed to the cutting table by installing bolts in the through hole. Because it is a through hole, the reeling chain box can be installed in either direction. The power is input from the input sprocket 5 into the reeling chain box, and after reversing, it is output from the output sprocket 4. After connecting to the reeling chain 19, it drives the reeling chain to work.

Claims

1. A front-to-rear connecting chain box for grain harvesting, characterized in that, It includes a housing, an input horizontal shaft, an integrated output shaft, and an output sprocket; The casing has through holes; Inside the housing, an input horizontal shaft is installed horizontally, and an input sprocket is installed on the input horizontal shaft outside the housing; Transmission components are installed on both sides of the input horizontal shaft inside the housing; The transmission assembly consists of a bevel gear mounted on the input horizontal shaft, a first bearing mounted outside the bevel gear, and the outer ring of the first bearing contacting the housing. An integrated wheel and axle output shaft is meshed with the bevel gear and transmits power to the input horizontal shaft in a reversing direction. The shaft of the integrated wheel and axle output shaft extends out of the housing and is mounted with a second bearing via a bearing seat. An output sprocket is also connected to the shaft.

2. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, The casing material is aluminum alloy.

3. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, The casing has an oil filling hole and is fitted with an oil filling hole plug.

4. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, Mounting platforms are formed at the four corners of the casing, and through holes are made on the mounting platforms.

5. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, The bearing housing is divided into high sprocket bearing housing and low sprocket bearing housing.

6. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, The bevel gear and the output sprocket are respectively mounted by a flat key.

7. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, At the first bearing, a retaining ring and an oil seal are installed; at both ends of the housing, protective plates are installed respectively; at the second bearing, a retaining ring and an oil seal are also installed.

8. The front-to-rear connecting chain box for grain harvesting as described in claim 1, characterized in that, A nut is installed at the upper end of the shaft.

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