Feeding hobbing device of round bundle bundling machine

Abstract

A feeding gear hobbing device of a round bale bundling machine comprises a rolling shaft, a gear hobbing cylinder and a plurality of tooth raking plates, the gear hobbing cylinder is fixed to the rolling shaft, the middle of each tooth raking plate is hollowed out to be round, the tooth raking plates can be attached to and fixed to the surface of the gear hobbing cylinder in a sleeved mode, the circumferential faces of the tooth raking plates are smooth, tooth angles are arranged at the two ends of each tooth raking plate, and the tooth raking plates and the tooth raking plates jointly form a spiral dart shape. The plurality of raked plates are uniformly arranged at intervals in the axial direction of the hobbing cylinder, and the raked plates on the two sides of the raked plate in the middle of the hobbing cylinder are sequentially and spirally arranged in the same direction along the corresponding shaft ends respectively. And a toothed plate reinforcing plate is arranged between the two plates of each group of raking toothed plates close to the two ends of the rolling shaft. The row of spiral dart-shaped raking tooth plates are evenly arranged on the hobbing cylinder from the middle to the two ends, when forage enters the hobbing cylinder from the pickup device, the forage located at the two ends of the hobbing cylinder is conveyed from the two ends to the middle, the forage can be effectively and evenly poked in, and the service life of hobbing teeth is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of balers, in particular to a feeding gear hobbing device of a round baler. Background Art

[0002] When a round hay baler is working, the picker picks up the hay and transports it to the feed hobbing gear through the auger. However, due to the large amount of hay on the left and right sides, the hobbing gear cannot effectively and evenly push the hay into the baling chamber behind it, causing uneven accumulation of hay and affecting subsequent baling operations. Moreover, as the machine is used for a long time, the axial force of the hay feeding will cause serious deformation of the feed tine plates on both sides, also affecting the operating efficiency and stability of the baler. Therefore, it is necessary to design a feed hobbing device for a round hay baler that further optimizes the product structure based on the original hobbing gear, reduces production difficulty, facilitates maintenance and use, improves machine working efficiency and product quality, and can effectively push hay into the baling chamber behind the hobbing gear cylinder. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention aims to provide a feeding hobbing device for a round baler, which can effectively and evenly feed grass into the baling chamber at the back and ensure the life of the hobbing.

[0004] The utility model is realized through the following technical solutions:

[0005] A feeding gear hobbing device for a round bale baler comprises: a roller, a gear hobbing cylinder and a plurality of gear plates. The gear hobbing cylinder is fixed on the roller. The middle part of the gear plate is hollowed out into a circle and can be fitted into and fixed on the surface of the gear hobbing cylinder. The peripheral surface of the gear plate is smooth, and each end has a tooth angle and is together constructed into a spiral dart shape. The plurality of gear plates are evenly spaced along the axial direction of the gear hobbing cylinder. Starting from the gear plate located in the middle of the gear hobbing cylinder, the gear plates on both sides are spirally arranged in sequence along the corresponding shaft ends in the same direction.

[0006] Preferably, a tooth plate reinforcement plate is provided between the two plates of each set of tooth plates near the two ends of the roller.

[0007] Preferably, the number of the gear plates is 34, of which every 2 form a group with small intervals, and a total of 17 groups are in a large interval. They are evenly spaced along the axial direction of the gear hobbing cylinder and are all welded to the surface of the gear hobbing cylinder. The 9th group of gear plates is used as the boundary, and the groups of gear plates on both sides are arranged in sequence along the corresponding shaft ends in the same spiral direction. For the 1st group of gear plates and the 17th group of gear plates, a gear plate reinforcement plate is welded between the two plates of each group of gear plates at the tooth angle position.

[0008] Preferably, agitators are provided in parallel at the front of the gear hobbing cylinder, near the feeding inlet, and at both ends of the gear hobbing cylinder, and the two agitators are symmetrically arranged.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] This utility model evenly arranges a row of spiral dart-shaped tooth plates on the gear hobbing cylinder from the center to the ends, so that these tooth plates on both sides of the center are spirally arranged in the same direction. When the grass enters the gear hobbing cylinder from the picker, the grass at the ends of the gear hobbing cylinder is fed from the ends to the center position and then fed into the baling chamber at the back. This can effectively and evenly feed the grass, reduce the axial thrust that causes deformation of the tooth plates due to the large amount of grass on the left and right sides and the accumulation over time, thereby ensuring the life of the gear hobbing. Because the tooth plate reinforcement plate is welded between the two plates of each set of tooth plates near the two ends of the roller, the effect of resisting the axial force of grass feeding is improved, and the deformation of the tooth plates is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic structural diagram of the feeding gear hobbing device of the round bale baler of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model in which the gear hobbing plates are evenly spaced and arranged on the gear hobbing cylinder;

[0014] Figure 3 This is a front view of multiple gear plates of the utility model;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the gear hobbing plates of the utility model arranged evenly at intervals on the gear hobbing cylinder.

[0016] Among them, the roller 1, the gear hobbing cylinder 2, the gear plate 3, the tooth angle 301, the gear plate reinforcement plate 4, and the auger 5. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0018] The technical solution of the present utility model is further described below with reference to the accompanying drawings. Figure 1-4 The present invention shows a feeding gear hobbing device for a round baler, comprising a roller 1, a gear cylinder 2, and multiple tooth plates 3. The gear cylinder 2 is fixed to the roller 1. The tooth plates 3 are hollowed out in the middle to form a circular shape, which can be inserted and fixed on the surface of the gear cylinder 2. The tooth plates 3 have a smooth surface, each with a tooth angle 301 at each end, and together they form a spiral dart shape. The multiple tooth plates 3 are evenly spaced along the axial direction of the gear cylinder 2. Starting from the tooth plate 3 located in the middle of the gear cylinder 2, the tooth plates 3 on both sides are spirally arranged in the same direction along the corresponding axial ends. When hay enters the gear cylinder from the picker, the roller 1 drives the gear cylinder 2 to rotate, feeding hay at both ends of the gear cylinder 2 from both ends to the middle position, and simultaneously feeding it into the baling chamber at the back. This effectively and evenly feeds the hay, reduces the axial thrust on the tooth plates 3 that can cause deformation due to the large amount of hay on the left and right sides and the accumulation of axial thrust over time, thereby ensuring the life of the gear hobbing.

[0019] Due to the axial force of the grass feeding, the tooth plates on both sides of the roller 1 will be severely deformed, affecting the operating efficiency and stability of the baler. A tooth plate reinforcement plate 4 is provided between the two plates of each group of tooth plates 3 near the two ends of the roller 1. The tooth plate reinforcement plate 4 increases the local plate thickness of the tooth plates on both sides, improves the effect of resisting the axial force of the grass feeding, and further reduces the deformation effect of the tooth plates 3.

[0020] In actual production and manufacturing, the number of tooth plates 3 and the intervals between them are determined by the actual feeding amount of bales. This time, the number of tooth plates 3 is set to 34, of which every 2 are in a group with small intervals, and a total of 17 groups are in a large interval. They are evenly spaced along the axial direction of the gear hobbing cylinder 2 and are all welded to the surface of the gear hobbing cylinder 2. With the 9th group of tooth plates 3 as the boundary, the groups of tooth plates 3 on both sides are arranged in sequence along the corresponding shaft ends in the same spiral direction. For the 1st group of tooth plates 3 and the 17th group of tooth plates 3, between the two plates of each group of tooth plates 3, a tooth plate reinforcement plate 4 is welded at the tooth angle 301.

[0021] In front of the gear cylinder 2, near the feeding inlet and at both ends of the gear cylinder 2, there are also auger 5 parallel to it, and two auger 5 are symmetrically arranged. The auger 5 transports the grass material at both ends of the gear cylinder 2, which is larger in amount, from both ends to the middle of the gear cylinder.

[0022] The working principle of this utility model:

[0023] like Figure 1 The roller 1, gear hobbing cylinder 2, tooth plate 3, and tooth plate reinforcement plate 4 are welded together according to the structure shown in the figure. When the grass enters the gear hobbing cylinder from the picker, the roller 1 drives the gear hobbing cylinder 2 to rotate, and the grass at the two ends of the front of the gear hobbing cylinder 2 is sent from both ends to the middle position. This axial conveying also causes the grass to be fed into the baling chamber behind due to the backward rotation of the gear hobbing cylinder 2, thereby achieving the effect of evenly feeding the grass. The feeding gear hobbing device of this utility model has low production cost. When the machine is working in the field, it effectively improves the operating efficiency and maximizes the economic benefits of the baler. It has won unanimous recognition from users and is very worthy of promotion in the industry.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A feeding gear hobbing device for a round baler, characterized by: The invention comprises a roller (1), a gear hobbing cylinder (2) and a plurality of toothed plates (3), wherein the gear hobbing cylinder (2) is fixed on the roller (1), the middle portion of the toothed plates (3) is hollowed out to be circular and can be fitted into and fixed on the surface of the gear hobbing cylinder (2), the peripheral surface of the toothed plates (3) is smooth, and each of the two ends thereof has a tooth angle (301) and is jointly constructed into a spiral dart shape, and the plurality of toothed plates (3) are evenly spaced and arranged along the axial direction of the gear hobbing cylinder (2), starting from the toothed plate (3) located in the middle of the gear hobbing cylinder (2), the toothed plates (3) on both sides thereof are respectively arranged spirally in the same direction along the corresponding axial ends.

2. The feeding gear hobbing device of the round baler according to claim 1, characterized in that: A tooth plate reinforcement plate (4) is provided between the two plates of each set of tooth plates (3) near the two ends of the roller (1).

3. The feeding gear hobbing device of the round baler according to claim 2, characterized in that: The number of the gear plates (3) is 34, wherein each group of two gear plates is in a small interval shape, and a total of 17 groups are in a large interval shape. They are evenly spaced along the axial direction of the gear hobbing cylinder (2) and are all welded to the surface of the gear hobbing cylinder (2). With the 9th group of gear plates (3) as the boundary, the groups of gear plates (3) on both sides thereof are arranged in sequence along the corresponding shaft ends in the same spiral direction. For the 1st group of gear plates (3) and the 17th group of gear plates (3), a gear plate reinforcement plate (4) is welded between the two plates of each group of gear plates (3) at the tooth angle (301).

4. The feeding gear hobbing device of the round baler according to claim 1, characterized in that: The invention also comprises a stirrer (5) which is located in front of the gear hobbing cylinder (2) near the feeding inlet and at both ends of the gear hobbing cylinder (2). Stirrers (5) are respectively provided in parallel with the gear hobbing cylinder (2). The two stirrers (5) are symmetrically arranged.

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