CN215601939U - Cutting knife driving mechanism of reciprocating double-moving-knife mower - Google Patents

Abstract

The utility model discloses a cutting knife driving mechanism of a reciprocating double-moving-knife mower, which comprises a mounting seat, a crank, a connecting rod and a swing arm, wherein the mounting seat comprises a bottom plate, a vertical plate, a main shaft sleeve, a left swing arm upper shaft and a right swing arm upper shaft; the crank comprises a main shaft, a first eccentric shaft and a second eccentric shaft; the swing arm comprises a left swing arm and a right swing arm, the left swing arm comprises a left arm plate, a left swing arm upper shaft sleeve, a left swing arm middle shaft and a left swing arm lower shaft, and the right swing arm comprises a right arm plate, a right swing arm upper shaft sleeve, a right swing arm middle shaft and a right swing arm lower shaft; the left swing arm upper shaft sleeve is arranged on the left swing arm upper shaft, and the right swing arm upper shaft sleeve is arranged on the right swing arm upper shaft; a first connecting rod is connected between the first eccentric shaft and the middle shaft of the left swing arm, and a second connecting rod is connected between the second eccentric shaft and the middle shaft of the right swing arm; the upper moving blade driving rod is connected with the lower shaft of the left swing arm, and the lower shaft of the right swing arm is connected with the lower moving blade driving rod. The forage grass harvester has the advantages of reasonable structure, small running vibration, high forage grass harvesting rate and long service life.

Description

Cutting knife driving mechanism of reciprocating double-moving-knife mower

Technical Field

The utility model belongs to the technical field of animal husbandry machinery, and particularly relates to a cutting knife driving mechanism of a reciprocating double-moving-knife mower.

Background

The mower is a commonly used animal husbandry machine, and the reciprocating single-blade mower is mostly used at present and comprises a suspension bracket assembly, a cutting knife driving mechanism and a mower; the mower of the reciprocating single-moving-blade mower comprises a sawtooth type fixed blade and a sawtooth type moving blade, wherein the sawtooth type fixed blade is fixed, the sawtooth type moving blade is arranged on the sawtooth type fixed blade, and the sawtooth type moving blade is driven by a cutting blade driving mechanism to reciprocate to generate shearing action for mowing. The cutting knife driving mechanism comprises a crank connecting rod mechanism consisting of a main shaft, a crank arm, an eccentric shaft and a connecting rod, the crank connecting rod mechanism, the swing arm and the connecting rod drive the sawtooth type moving knife to reciprocate and translate to generate shearing action for mowing. The disadvantages are mainly: the balance effect is poor, vibration is generated during operation, and the machine cannot run stably; the connecting parts among all the parts are easy to wear, the gap is too large after the parts are worn, the parts can vibrate greatly during operation, the parts are easy to damage, the service life is short, and the parts need to be maintained and replaced frequently. In addition, the sawtooth type fixed cutter is fixed, the sawtooth type movable cutter moves in a reciprocating translation mode to generate a shearing action for mowing, grass stubbles are high, and the grass harvesting rate is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a cutting knife driving mechanism of a reciprocating double-moving-knife mower, which has the advantages of reasonable structure, small running vibration, high grass harvesting rate and long service life.

The purpose of the utility model is realized as follows: the utility model provides a cutting knife actuating mechanism of reciprocating type double knives lawn mower, it includes mount pad, crank, connecting rod and swing arm, its characterized in that: the mounting seat comprises a bottom plate, a vertical plate is connected to the bottom plate, a main shaft sleeve is arranged in the middle of the vertical plate, a left swing arm upper shaft is arranged on the left side of the upper portion of the vertical plate, and a right swing arm upper shaft is arranged on the right side of the upper portion of the vertical plate; the crank comprises a main shaft, a first eccentric shaft and a second eccentric shaft; the connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod comprises a first rod body, one end of the first rod body is provided with a first rod body shaft sleeve, the other end of the first rod body is provided with a first rod body external thread section, the second connecting rod comprises a second rod body, one end of the second rod body is provided with a second rod body shaft sleeve, and the other end of the second rod body is provided with a second rod body external thread section; the swing arm comprises a left swing arm and a right swing arm, the left swing arm comprises a left arm plate, the upper end of the left arm plate is connected with a left swing arm upper shaft sleeve, a left swing arm middle shaft sleeve is arranged in the middle of the left arm plate, a left swing arm middle shaft with a through hole is arranged on the left swing arm middle shaft sleeve through a bearing, and a left swing arm lower shaft is arranged at the lower end of the left arm plate; the right swing arm comprises a right arm plate, the upper end of the right arm plate is connected with a right swing arm upper shaft sleeve, the middle part of the right arm plate is provided with a right swing arm middle shaft sleeve, the right swing arm middle shaft sleeve is provided with a right swing arm middle shaft with a through hole through a bearing, and the lower end of the right arm plate is provided with a right swing arm lower shaft; the left swing arm upper shaft sleeve is arranged on the left swing arm upper shaft through a bearing, and the right swing arm upper shaft sleeve is arranged on the right swing arm upper shaft through a bearing; the first rod body shaft sleeve is arranged on the first eccentric shaft through a bearing, the external thread section of the first rod body is inserted into the through hole of the middle shaft of the left swing arm and is fixedly connected by two nuts, the second rod body shaft sleeve is arranged on the second eccentric shaft through a bearing, and the external thread section of the second rod body is inserted into the through hole of the middle shaft of the right swing arm and is fixedly connected by two nuts; the left swing arm lower shaft is connected with the upper moving blade driving rod through a bearing, and the right swing arm lower shaft is connected with the lower moving blade driving rod through a bearing.

Furthermore, a dynamic balance cylinder composed of a cylinder wall and a cylinder bottom is arranged on the main shaft.

Furthermore, the left arm plate consists of a front left arm plate and a rear left arm plate which are parallel to each other, a left swing arm middle shaft sleeve consists of a front left swing arm middle shaft sleeve arranged in the middle of the front left arm plate and a rear left swing arm middle shaft sleeve arranged in the middle of the rear left arm plate, and the left swing arm middle shaft is arranged on the front left swing arm middle shaft sleeve and the rear left swing arm middle shaft sleeve through two bearings; the right arm plate is composed of a front right arm plate and a rear right arm plate which are parallel to each other, a right swing arm middle shaft sleeve is composed of a front right swing arm middle shaft sleeve arranged in the middle of the front right arm plate and a rear right swing arm middle shaft sleeve arranged in the middle of the rear right arm plate, and a right swing arm middle shaft is arranged on the front right swing arm middle shaft sleeve and the rear right swing arm middle shaft sleeve through two bearings.

Furthermore, two connecting columns are arranged between the front left arm plate and the rear left arm plate; two connecting columns are arranged between the front right arm plate and the rear right arm plate.

Compared with the prior art, the utility model has the advantages that:

the utility model has reasonable integral structure, accurate clearance control, good lubricating effect, reduced abrasion, small running resistance, small running vibration and long service life, and all parts are connected through the bearings in a rotating way.

The utility model adopts a double-moving-blade driving structure, the double-moving-blade driving structure drives the upper serrated cutting knife and the lower serrated cutting knife of the grass cutter to perform reverse reciprocating translation to generate shearing action for mowing, the translation amplitude of a single serrated cutting knife is small, so that the vibration is small, the mower operates stably, in addition, in the process of cutting the pasture, the two serrated cutting knives simultaneously translate towards the center of a scissor opening, the inclination angle of the cut pasture is small, the stubble of the pasture is low, and the yield of the pasture is high.

The utility model is further provided with a dynamic balance cylinder, and a dynamic balance balancing weight can be fixed on the inner side of the cylinder wall through dynamic balance detection before and after the equipment leaves a factory and runs for a period of time, so that dynamic balance of the operation of the mower is guaranteed.

Drawings

FIG. 1 is a schematic perspective view of a cutting knife driving mechanism of the reciprocating double-blade mower of the present invention;

FIG. 2 is a perspective view of the mounting base of the present invention;

FIG. 3 is a schematic perspective view of the crank and dynamic balance cylinder of the present invention;

FIG. 4 is a perspective view of the crank and dynamic balance cylinder of the present invention in an exploded state;

FIG. 5 is a schematic perspective view of the first and second links of the present invention;

fig. 6 is a schematic perspective view of the left and right swing arms of the present invention.

In the figure: 1-mounting base, 11-base plate, 12-upright plate, 13-main shaft sleeve, 14-left swing arm upper shaft, 15-right swing arm upper shaft, 2-crank, 21-main shaft, 22-first eccentric shaft, 23-second eccentric shaft, 3-first connecting rod, 31-first rod, 32-first rod bushing, 33-first rod external thread section, 4-second connecting rod, 41-second rod, 42-second rod bushing, 43-second rod external thread section, 5-left swing arm, 51-front left arm plate, 52-rear left arm plate, 53-left swing arm upper bushing, 54-front left swing arm middle bushing, 55-rear left swing arm middle bushing, 56-left swing arm middle shaft, 57-left swing arm lower shaft, 58-connecting column, 6-right swing arm, 61-front right arm plate, 62-rear right arm plate, 63-right swing arm upper shaft sleeve, 64-front right swing arm middle shaft sleeve, 65-rear right swing arm middle shaft sleeve, 66-right swing arm middle shaft, 67-right swing arm lower shaft, 68-connecting column, 7-upper moving blade driving rod, 8-lower moving blade driving rod, 9-dynamic balance cylinder, 91-cylinder wall and 92-cylinder bottom.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be understood that the terms "middle", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present application, the terms "mounted," "connected," "disposed," and the like are to be understood broadly, and may be, for example, fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 6, a cutting knife driving mechanism of a reciprocating double-knife mower comprises a mounting base 1, a crank 2, a connecting rod and a swing arm; the mounting seat comprises a bottom plate 11, a vertical plate 12 is connected to the bottom plate 11, a main shaft sleeve 13 is arranged in the middle of the vertical plate 12, a left swing arm upper shaft 14 is arranged on the left side of the upper portion of the vertical plate 12, and a right swing arm upper shaft 15 is arranged on the right side of the upper portion of the vertical plate 12; the crank 2 comprises a main shaft 21, a first eccentric shaft 22 and a second eccentric shaft 23; a dynamic balance cylinder 9 composed of a cylinder wall 91 and a cylinder bottom 92 is arranged on the main shaft 21; the connecting rod comprises a first connecting rod 3 and a second connecting rod 4, the first connecting rod 3 comprises a first rod body 31, one end of the first rod body 31 is provided with a first rod body shaft sleeve 32, the other end of the first rod body 31 is provided with a first rod body external thread section 33, the second connecting rod 4 comprises a second rod body 41, one end of the second rod body 41 is provided with a second rod body shaft sleeve 42, and the other end of the second rod body 41 is provided with a second rod body external thread section 43; the swing arm comprises a left swing arm 5 and a right swing arm 6, the left swing arm 5 comprises a front left arm plate 51 and a rear left arm plate 52 which are parallel to each other, the upper ends of the front left arm plate 51 and the rear left arm plate 52 are connected with a left swing arm upper shaft sleeve 53, the middle part of the front left arm plate 51 is provided with a front left swing arm middle shaft sleeve 54, the middle part of the rear left arm plate 52 is provided with a rear left swing arm middle shaft sleeve 55, the front left swing arm middle shaft sleeve 54 and the rear left swing arm middle shaft sleeve 55 are provided with a left swing arm middle shaft 56 with a through hole through two bearings, the lower ends of the front left arm plate 51 and the rear left arm plate 52 are connected with a left swing arm lower shaft 57, and two connecting columns 58 are arranged between the front left arm plate 51 and the rear left arm plate 52; the right swing arm 6 comprises a front right arm plate 61 and a rear right arm plate 62 which are parallel to each other, the upper ends of the front right arm plate 61 and the rear right arm plate 62 are connected with a right swing arm upper shaft sleeve 63, the middle part of the front right arm plate 61 is provided with a front right swing arm middle shaft sleeve 64, the middle part of the rear right arm plate 62 is provided with a rear right swing arm middle shaft sleeve 65, the front right swing arm middle shaft sleeve 64 and the rear right swing arm middle shaft sleeve 65 are provided with a right swing arm middle shaft 66 provided with a through hole through two bearings, the lower ends of the front right arm plate 61 and the rear right arm plate 62 are connected with a right swing arm lower shaft 67, and two connecting columns 68 are arranged between the front right arm plate 61 and the rear right arm plate 62; the left swing arm upper shaft sleeve 53 is arranged on the left swing arm upper shaft 14 through a bearing, and the right swing arm upper shaft sleeve 63 is arranged on the right swing arm upper shaft 15 through a bearing; the first rod bushing 32 is mounted on the first eccentric shaft 22 through a bearing, the first rod external thread section 33 is inserted into the through hole of the left swing arm center shaft 56 and fixedly connected by two nuts, the second rod bushing 42 is mounted on the second eccentric shaft 23 through a bearing, and the second rod external thread section 43 is inserted into the through hole of the right swing arm center shaft 66 and fixedly connected by two nuts; the left swing arm lower shaft 57 is connected with the upper moving blade driving rod 7 through a bearing, and the right swing arm lower shaft 67 is connected with the lower moving blade driving rod 8 through a bearing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (4)

1. The utility model provides a cutting knife actuating mechanism of reciprocating type double knives lawn mower, it includes mount pad, crank, connecting rod and swing arm, its characterized in that: the mounting seat comprises a bottom plate, a vertical plate is connected to the bottom plate, a main shaft sleeve is arranged in the middle of the vertical plate, a left swing arm upper shaft is arranged on the left side of the upper portion of the vertical plate, and a right swing arm upper shaft is arranged on the right side of the upper portion of the vertical plate; the crank comprises a main shaft, a first eccentric shaft and a second eccentric shaft; the connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod comprises a first rod body, one end of the first rod body is provided with a first rod body shaft sleeve, the other end of the first rod body is provided with a first rod body external thread section, the second connecting rod comprises a second rod body, one end of the second rod body is provided with a second rod body shaft sleeve, and the other end of the second rod body is provided with a second rod body external thread section; the swing arm comprises a left swing arm and a right swing arm, the left swing arm comprises a left arm plate, the upper end of the left arm plate is connected with a left swing arm upper shaft sleeve, a left swing arm middle shaft sleeve is arranged in the middle of the left arm plate, a left swing arm middle shaft with a through hole is arranged on the left swing arm middle shaft sleeve through a bearing, and a left swing arm lower shaft is arranged at the lower end of the left arm plate; the right swing arm comprises a right arm plate, the upper end of the right arm plate is connected with a right swing arm upper shaft sleeve, the middle part of the right arm plate is provided with a right swing arm middle shaft sleeve, the right swing arm middle shaft sleeve is provided with a right swing arm middle shaft with a through hole through a bearing, and the lower end of the right arm plate is provided with a right swing arm lower shaft; the left swing arm upper shaft sleeve is arranged on the left swing arm upper shaft through a bearing, and the right swing arm upper shaft sleeve is arranged on the right swing arm upper shaft through a bearing; the first rod body shaft sleeve is arranged on the first eccentric shaft through a bearing, the external thread section of the first rod body is inserted into the through hole of the middle shaft of the left swing arm and is fixedly connected by two nuts, the second rod body shaft sleeve is arranged on the second eccentric shaft through a bearing, and the external thread section of the second rod body is inserted into the through hole of the middle shaft of the right swing arm and is fixedly connected by two nuts; the left swing arm lower shaft is connected with the upper moving blade driving rod through a bearing, and the right swing arm lower shaft is connected with the lower moving blade driving rod through a bearing.

2. The cutting knife driving mechanism of the reciprocating double-action knife mower according to claim 1, characterized in that: a dynamic balance cylinder composed of a cylinder wall and a cylinder bottom is arranged on the main shaft.

3. The cutting knife driving mechanism of the reciprocating double-acting knife mower according to claim 1 or 2, characterized in that: the left arm plate consists of a front left arm plate and a rear left arm plate which are parallel to each other, a left swing arm middle shaft sleeve consists of a front left swing arm middle shaft sleeve arranged in the middle of the front left arm plate and a rear left swing arm middle shaft sleeve arranged in the middle of the rear left arm plate, and the left swing arm middle shaft is arranged on the front left swing arm middle shaft sleeve and the rear left swing arm middle shaft sleeve through two bearings; the right arm plate is composed of a front right arm plate and a rear right arm plate which are parallel to each other, a right swing arm middle shaft sleeve is composed of a front right swing arm middle shaft sleeve arranged in the middle of the front right arm plate and a rear right swing arm middle shaft sleeve arranged in the middle of the rear right arm plate, and a right swing arm middle shaft is arranged on the front right swing arm middle shaft sleeve and the rear right swing arm middle shaft sleeve through two bearings.

4. The cutting knife driving mechanism of the reciprocating double-action knife mower according to claim 3, characterized in that: two connecting columns are arranged between the front left arm plate and the rear left arm plate; two connecting columns are arranged between the front right arm plate and the rear right arm plate.

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