CN221329600U - Small-size round baler twines membrane device suitable for hillside fields - Google Patents

Abstract

The utility model discloses a film wrapping device for a small round baler suitable for sloping land, mainly comprising a parallel four-bar mechanism, a lifting cylinder, a front frame, a bale placing cylinder, a rear frame, a film wrapping arm, a supporting roller, a main shaft, a supporting frame, a film cutting device and a supporting plate. One end of the parallel four-bar mechanism and the lifting cylinder are hinged on the front frame, and the other end is hinged on the front baler to form a lifting system; the rear frame is hinged behind the front frame, one end of the bale placing cylinder is hinged on the front frame, and the other end is hinged on the rear frame; one end of the main shaft is fixed on the rear frame, and the other end is fixed to the supporting frame, and the middle is connected to the film wrapping arm in the form of a rotating pair; two ends of the supporting roller are respectively connected to a supporting plate, and one is fixed on the front frame and the supporting frame; the film cutting device is fixed on the front supporting plate; the device can be connected to the rear of the picking and baling machine to form a picking and baling film wrapping all-in-one machine, which can complete forage silage operations in the field and adapt to complex terrain conditions such as hills and mountains.

Description

A film wrapping device for a small round baler suitable for slopes

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a small round baler film wrapping device suitable for sloping land.

Background technique

In recent years, with the rapid development of animal husbandry, the demand for forage has increased rapidly, especially forage silage, which is very popular because of its advantages such as less nutritional loss, good palatability, reduced parasitic diseases and long-term storage. Silage storage methods include cellar storage, bag storage and straw bale silage, among which straw bale silage has the advantages of flexible storage location and easy transportation. At present, straw bale silage operations in large grasslands are usually completed by silage picking, baling and wrapping machines, or by silage round balers and round bale wrapping machines. For other small plots where large machinery cannot operate, the forage grass is first harvested and transported to the workshop, and the silage operation is completed by a fixed baling and wrapping machine.

In the prior art, there are few small-sized integrated pick-up, baling and wrapping machines suitable for small plots of sloping land. The main reason is that there is no wrapping device that is completely suitable for matching with small round balers. Currently, there are two types of wrapping devices that are matched with round balers: arm-type wrapping devices and fixed wrapping devices. There are the following problems with the matching of small round balers:

(1) The arm-type wrapping device requires a large gap between the baling chamber and the wrapping platform to allow the film guide on the wrapping arm to pass through. Therefore, it is only suitable for large round balers. Small round balers will cause problems such as the body being too long and unstable and the bale getting stuck between the baling chamber and the wrapping platform.

(2) The film guide mechanism of the fixed film wrapping device is fixed, and the straw bale must rotate as well as revolve. Therefore, it is suitable for fixed operations in the workshop. It is not stable enough for mobile operations in the field, and the straw bale is very easy to fall, so it cannot be operated on slopes.

Therefore, it is necessary to design a small round baler film wrapping device suitable for slopes to solve the above technical problems.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a small round baler film wrapping device suitable for sloping land, so as to solve the problems mentioned in the background technology.

To achieve the above-mentioned and other related purposes, the present invention provides a film wrapping device for a small round baler suitable for sloping land, which mainly includes a parallel four-bar mechanism, a lifting cylinder, a front frame, a bale placing cylinder, a rear frame, a film wrapping arm, a support roller driven sprocket, a support roller, a support roller driving sprocket, an intermediate shaft, a driven bevel gear, a driving bevel gear, a main shaft, a motor, a support frame, a film guiding mechanism, a limiting wheel, a film cutting device, a support plate, a film wrapping arm driving sprocket and a film wrapping arm driven sprocket, and is characterized in that: one end of the parallel four-bar mechanism and the lifting cylinder are hinged to the front frame, and the other end is hinged to the front baler to form a lifting system; the rear frame is hinged to the rear of the front frame, one end of the bale placing cylinder is hinged to the front frame, and the other end is hinged to the rear frame; one end of the main shaft is fixed to the rear frame, and the other end is fixed to the support frame, and the middle is connected to the film wrapping arm. The arms are connected in the form of a revolving pair, a film guiding mechanism is fixed on each left and right side of the film wrapping arm, and the front and rear of the middle rotating position are rigidly connected to the driving bevel gear and the driven sprocket of the film wrapping arm respectively; the motor is fixed on the rear frame, the driving sprocket of the film wrapping arm is connected to the output shaft of the motor, and the driving sprocket of the film wrapping arm and the driven sprocket of the film wrapping arm are connected by a chain; a support plate is connected to each end of the support roller, the front support plate is fixed on the front frame, the rear support plate is fixed on the support frame, and a limiting wheel is fixed on each support plate; the intermediate shaft is connected to the support frame in the form of a revolving pair, and the two ends are rigidly connected to the driven bevel gear and the driving sprocket of the support roller respectively, the driven bevel gear is meshed with the driving bevel gear, the driven sprocket of the support roller is fixed to the end of the rear support roller, and is connected to the driving sprocket of the support roller by a chain; the film cutting device is fixed on the front support plate.

Furthermore, the film cutting device includes a film cutting knife, an upper film pressing block, a knife holder, a film cutting bracket, a film cutting cylinder and a lower film pressing block, the film cutting knife is fixed on the side of the knife holder, the upper film pressing block is fixed below the knife holder, the knife holder is hinged to the film cutting bracket, one end of the film cutting cylinder is hinged to the knife holder, and the other end is hinged to the film cutting bracket, and the lower film pressing block is fixed to the film cutting bracket.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model is connected to the round baler by a parallel four-bar mechanism. The lifting cylinder controls the lifting of the film wrapping device. After the bale is lowered, it can smoothly fall to the film wrapping device. After the bale is raised, it can provide space for the film wrapping arm to rotate.

(2) All moving parts of the utility model are driven by full hydraulic pressure, so the film wrapping device works smoothly and has strong driving force;

(3) The utility model connects the rotation of the wrapping arm and the rotation of the support roller in series through mechanical transmission, and has a fixed transmission ratio, so that the straw bale is wrapped evenly, the operation quality is high, the wrapping efficiency is high, and the wrapping sealing is good;

(4) The film cutting device of the utility model can fix the end of the stretch film while cutting the stretch film, thus providing a guarantee for the continuous operation of the film wrapping device.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the film wrapping operation state of the utility model;

FIG3 is a schematic diagram of the bundle placing operation state of the utility model;

FIG. 4 is a schematic structural diagram of the film cutting device of the present invention.

In the figure: 1. parallel four-bar mechanism; 2. lifting cylinder; 3. front frame; 4. bale placing cylinder; 5. rear frame; 6. film wrapping arm; 7. support roller driven sprocket; 8. support roller; 9. support roller driving sprocket; 10. intermediate shaft; 11. driven bevel gear; 12. driving bevel gear; 13. main shaft; 14. motor; 15. support frame; 16. film guiding mechanism; 17. limiting wheel; 18. film cutting device; 19. support plate; 20. stretch film; 21. straw bale; 22. film wrapping arm driving sprocket; 23. film wrapping arm driven sprocket; 1801. film cutting knife; 1802. upper film pressing block; 1803. knife holder; 1804. film cutting bracket; 1805. film cutting cylinder; 1806. lower film pressing block.

Detailed ways

Referring to Figures 1 to 4, the present invention provides a technical solution: a small round baler film wrapping device suitable for slope land, mainly comprising a parallel four-bar mechanism 1, a lifting cylinder 2, a front frame 3, a bale placing cylinder 4, a rear frame 5, a film wrapping arm 6, a support roller driven sprocket 7, a support roller 8, a support roller driving sprocket 9, an intermediate shaft 10, a driven bevel gear 11, a driving bevel gear 12, a main shaft 13, a motor 14, a support frame 15, a film guide mechanism 16, a limiting wheel 17, a film cutting device 18, a support plate 19, a film wrapping arm driving sprocket 22 and a film wrapping arm driven sprocket 23. The driving sprocket 23, the parallel four-bar mechanism 1 and the lifting cylinder 2 are hinged at one end on the front frame 3, and the other end is hinged on the front baler, forming a lifting system for completing the lifting and lowering action of the film wrapping device; the rear frame 5 is hinged behind the front frame 3, and the bale release cylinder 4 is hinged at one end on the front frame 3 and the other end on the rear frame 5. When the bale release cylinder 4 contracts, the rear frame 5 rotates upward around the hinge, the distance between the two support rollers 8 increases, and the bale is output; one end of the main shaft 13 is fixed on the rear frame 5, and the other end is fixed to the support frame 15, and the middle is connected to the film wrapping arm 6 The film wrapping arm 6 is connected in the form of a rotating pair, and a film guide mechanism 16 is fixed on each side, and the middle rotating position is rigidly connected to the driving bevel gear 12 and the film wrapping arm driven sprocket 23 respectively; the motor 14 is fixed on the rear frame 5, the film wrapping arm driving sprocket 22 is connected to the output shaft of the motor 14, and the film wrapping arm driving sprocket 22 and the film wrapping arm driven sprocket 23 are connected by a chain; a support plate 19 is connected to each end of the support roller 8, the front support plate 19 is fixed on the front frame 3, the rear support plate 19 is fixed on the support frame 15, and the support plate 1 9, a limiting wheel 17 is fixed on each of them to limit the left and right movement of the straw bale; the intermediate shaft 10 is connected to the support frame 15 in the form of a rotating pair, and the two ends are rigidly connected to the driven bevel gear 11 and the support roller driving sprocket 9, the driven bevel gear 11 is meshed with the driving bevel gear 12, the support roller driven sprocket 7 is fixed to the end of the rear support roller 8, and is connected to the support roller driving sprocket 9 by a chain, and each transmission part cooperates with each other to drive the actuator to complete the film wrapping operation; the film cutting device 18 is fixed on the front support plate 19 to complete the film cutting operation.

The film cutting device comprises a film cutting knife 1801, an upper film pressing block 1802, a knife holder 1803, a film cutting support 1804, a film cutting cylinder 1805 and a lower film pressing block 1806. The film cutting knife 1801 is fixed on the side of the knife holder 1803 for cutting the stretch film. The upper film pressing block 1802 is fixed below the knife holder 1803. The knife holder 1803 is hinged to the film cutting support 1804. One end of the film cutting cylinder 1805 is hinged to the knife holder 1803, and the other end is hinged to the film cutting support 1804 to drive the knife holder 1803 to move. The lower film pressing block 1806 is fixed to the film cutting support 1804. When the film cutting device is closed, the stretch film is first clamped by the upper film pressing block 1802 and the lower film pressing block 1806, and then cut from the inside by the film cutting knife 1801, and the outside continues to be clamped on the film cutting device for the next film wrapping operation.

Working principle: before operation, the stretch film 20 is fixed on the film guiding device 16, and one end of the stretch film 20 is clamped between the upper film pressing block 1802 and the lower film pressing block 1806 of the film cutting device 18; when the straw bale 21 is output, the lifting cylinder 2 and the bale releasing cylinder 4 are in an extended state, and the film wrapping device is in the state shown in Figure 1, so that the straw bale 21 can fall onto the film wrapping device smoothly; when the straw bale 21 falls into the film wrapping device, the limiting wheels 17 are stuck at both ends of the straw bale 21 to limit its axial movement, the lifting cylinder 2 shrinks, and the film wrapping device is in the state shown in Figure 2, leaving space for the film wrapping arm 6 to rotate, and then the motor 14 is started to drive the film wrapping arm 6 to rotate, and the active bevel gear 12 rotates accordingly, and drives the driven bevel gear 11 and the intermediate shaft 10 to rotate, and the intermediate shaft 10 then drives the support roller 8 to rotate through the chain drive, thereby driving the straw bale 21 to rotate, and the film wrapping arm 6 drives the film guiding device The film wrapping arm 6 rotates around the straw bale 21 to complete the film wrapping operation together; when the film wrapping operation reaches the last circle, the film cutting cylinder 1805 contracts, the film cutting device 18 opens, the end of the stretch film 20 is released, and the film wrapping arm 6 continues to rotate until the stretch film 20 is wrapped around the film cutting knife 1801, then the film cutting cylinder 1805 extends, the film cutting device 18 closes, the stretch film 20 is cut, and at the same time, the end of the stretch film is clamped between the upper film pressing block 1802 and the lower film pressing block 1806 of the film cutting device 18, and the film wrapping arm 6 reverses and returns to the horizontal state, and the film cutting operation is completed; then the lifting cylinder 2 extends, the bale placing cylinder 4 contracts, the height of the film wrapping device is lowered, and the rear frame 5 rotates upward around the hinge to be in the state shown in Figure 3, completing the bale placing action, and the straw bale is output; finally, the bale placing cylinder 4 extends, and the rear frame 5 rotates to a horizontal position around the hinge, waiting for the next film wrapping operation, and the operation is cyclically performed in sequence.

The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for the technical solutions described in the aforementioned embodiments to be modified, or some of the technical features thereof to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (2)

1. A film wrapping device for a small round baler suitable for sloping land, mainly comprising a parallel four-bar mechanism, a lifting cylinder, a front frame, a bale placing cylinder, a rear frame, a film wrapping arm, a support roller driven sprocket, a support roller, a support roller driving sprocket, an intermediate shaft, a driven bevel gear, a driving bevel gear, a main shaft, a motor, a support frame, a film guide mechanism, a limiting wheel, a film cutting device, a support plate, a film wrapping arm driving sprocket and a film wrapping arm driven sprocket, characterized in that: one end of the parallel four-bar mechanism and the lifting cylinder are hinged to the front frame, and the other end is hinged to the front baler to form a lifting system; the rear frame is hinged to the rear of the front frame, one end of the bale placing cylinder is hinged to the front frame, and the other end is hinged to the rear frame; one end of the main shaft is fixed to the rear frame, and the other end is fixed to the support frame, and the middle is connected to the film wrapping arm in the form of a rotating pair. The film-wrapping arm is connected, a film-guiding mechanism is fixed on each side of the film-wrapping arm, and the front and rear of the middle rotating position are rigidly connected to the driving bevel gear and the driven sprocket of the film-wrapping arm respectively; the motor is fixed on the rear frame, the driving sprocket of the film-wrapping arm is connected to the output shaft of the motor, and the driving sprocket of the film-wrapping arm and the driven sprocket of the film-wrapping arm are connected by a chain; a support plate is connected to each end of the support roller, the front support plate is fixed on the front frame, the rear support plate is fixed on the support frame, and a limiting wheel is fixed on each support plate; the intermediate shaft is connected to the support frame in the form of a rotating pair, and the two ends are rigidly connected to the driven bevel gear and the driving sprocket of the support roller respectively, the driven bevel gear is meshed with the driving bevel gear, the driven sprocket of the support roller is fixed to the end of the rear support roller, and is connected to the driving sprocket of the support roller by a chain; the film cutting device is fixed on the front support plate. 2. According to claim 1, a small round baler film wrapping device suitable for sloping land is characterized in that the film cutting device comprises a film cutting knife, an upper film pressing block, a knife holder, a film cutting bracket, a film cutting cylinder and a lower film pressing block, the film cutting knife is fixed on the side of the knife holder, the upper film pressing block is fixed under the knife holder, the knife holder is hinged to the film cutting bracket, one end of the film cutting cylinder is hinged to the knife holder, and the other end is hinged to the film cutting bracket, and the lower film pressing block is fixed on the film cutting bracket.