CN217486876U - Ditching depth adjustment drive mechanism - Google Patents

Abstract

The utility model discloses a drive mechanism is adjusted to ditching degree of depth, drive mechanism is adjusted to ditching degree of depth installs in the frame front end, the power supply is transmitted for the cutter ditching by ditching degree of depth adjustment drive mechanism, ditching degree of depth adjustment drive mechanism is original ditching transmission, the integrative mechanism of degree of depth adjustment, can satisfy the ditching transmission simultaneously, the cutter goes up and down, make ditching mechanism's overall structure compacter, in a word, through unique design, can't realize depth of regulation or transmit two kinds of functions of power simultaneously with mechanism in solving traditional ditching, thereby make overall structure reasonable compacter.

Description

Ditching depth adjustment drive mechanism

Technical Field

The utility model belongs to agricultural production equipment field relates to ditching machine technique and spiral pass degree of depth adjustment technique, specifically is a vertical spiral ditching machine degree of depth adjustment mechanism.

Background

The ditching modes of the existing ditcher mainly comprise a chain type ditching mode, a disc type ditching mode and a vertical spiral type ditching mode, and the chain type ditching mode and the disc type ditching mode have some obvious defects, such as: the structure size is large, and the power consumption is high; the vertical spiral ditcher utilizes the rotatory helical blade cutting soil, utilizes rotatory blade that rises, promotes the soil that cuts to the horizontal plane and spills to reach the purpose of ditching, then can avoid above-mentioned defect completely, and realize easily that it is integrated with degree of depth control technique to ditch the technique.

A spiral ditching and fertilizer mixing device is disclosed in CN201922283374.X, but the mechanism does not have a lifting mechanism, cannot adjust the ditching depth in real time, and simultaneously has the problem of inconvenient soil penetration.

Disclosure of Invention

The utility model mainly relates to a drive mechanism is adjusted to ditching degree of depth, mainly in order to solve the unable real-time regulation ditching degree of depth or the great problem of structure size of current ditching mechanism.

Big or the problem that can not adjust in real time of structure size to current ditching degree of depth adjustment mechanism exists, the utility model discloses a following technical scheme: the ditching depth adjustment and the power transmission are realized by adopting a spiral transmission principle.

The ditching depth adjusting transmission mechanism mainly comprises a box upper end cover, a box body, a large bevel gear, a small bevel gear, a bearing, a large bevel gear mounting seat, a large bevel gear bearing, a threaded spline groove integral shaft, a box lower end cover bearing, a bearing cover, a spiral transmission nut, a shaft sleeve, a round nut, a locking disc and an electromagnetic push rod, wherein one end of the box body is connected with the box lower end cover through a fastener, the other end of the box body is connected with the box upper end cover to form the whole box body of the ditching depth adjusting mechanism, and a hole in the surface of the further accessible box lower end cover is installed on the rack to fix the whole mechanism.

Preferably, the bevel pinion is vertically installed on the side face of the box body through a bearing, power is directly transmitted to the bevel pinion, the bevel pinion is meshed with the bevel pinion and is installed on the bevel pinion mounting seat through a bevel pinion bearing, and the bevel pinion mounting seat is installed on a threaded hole in the inner side of the box body.

Preferably, the screw thread spline groove integrated shaft is characterized in that a plurality of axial spline grooves are processed on the external screw thread screw rod, the upper end of the screw thread spline groove integrated shaft is matched with the screw thread spline groove integrated shaft through a spline of the shaft hole on the large bevel gear, and the middle part of the screw thread spline groove integrated shaft is installed in the screw drive nut through the screw drive screw thread.

Preferably, the screw transmission nut is characterized in that a screw transmission thread matched with the threaded spline groove integrated shaft is processed in the hole of the screw transmission nut, and the screw transmission nut is installed in the lower end cover bearing of the box body and is installed on the lower end cover of the box body through the lower end cover bearing of the box body, the shaft sleeve, the round nut and the bearing cover.

Preferably, the locking disc is characterized in that the locking disc is of a ratchet structure and is arranged at the lower end of the spiral transmission nut, ratchets distributed on the circumference of the locking disc and an electromagnetic push rod head (pawl) form a ratchet mechanism, and the electromagnetic push rod is arranged on the lower surface of the lower end cover of the spiral tilling depth adjusting mechanism.

Compare with current ditching machine degree of depth adjustment mechanism, the utility model discloses a beneficial department that indicates does:

present ditching degree of depth adjustment mechanism's depth control structure and transmission structure are parted, and consequently complete machine structure size is great, is unfavorable for operating in narrow or rugged mountain region, the utility model discloses in through unique ditching degree of depth adjustment mechanism transmission structural design, make this ditching degree of depth adjustment transmission mechanism both can realize the ditching degree of depth and adjust, again can power transmission, very big reduction equipment structure size.

Drawings

FIG. 1 is a sectional view of a ditching depth adjusting transmission mechanism

FIG. 2 is a partial enlarged view of the mounting position of a bevel gear on the side surface of a box body of a ditching depth adjusting transmission mechanism

FIG. 3 is a partial enlarged view of the mounting position of the screw drive nut of the ditching depth adjusting drive mechanism

FIG. 4 is a top view of the ditching depth adjusting transmission mechanism

FIG. 5 is a bottom view of the ditching depth adjusting transmission mechanism

FIG. 6 is a schematic view of a bevel gear

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely explained below with reference to the drawings in the embodiment of the present invention. The described embodiments are only some, but not all, of the embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the ditching depth adjusting transmission mechanism includes a box upper end cover 1, a box 2, a threaded spline groove integrated shaft 3, a bearing 4, a small bevel gear 5, a large bevel gear 6, a large bevel gear bearing 7, a box lower end cover 8, a screw transmission nut 9, a locking disc 10, an electromagnetic push rod 11, a bearing cover 12, a lower end cover bearing 13, a shaft sleeve 14, a round nut 15, and a large bevel gear mounting seat 16, wherein the same shaft section of the threaded spline groove integrated shaft 3 is provided with a screw thread and a plurality of axial spline grooves for screw transmission, a spline is processed in a shaft hole of the large bevel gear 6, and the large bevel gear 6 is matched with the spline grooves of the threaded spline groove integrated shaft 3 through the spline on the shaft hole, so that the threaded spline groove integrated shaft 3 can slide up and down in the shaft hole of the large bevel gear 6 while rotating.

Referring to fig. 1 and 2, the outer side of the large bevel gear mounting seat 16 is provided with a threaded hole 23, the middle of the large bevel gear mounting seat is provided with a shaft hole, the large bevel gear mounting seat 16 is fixed on the inner side of the box body 2 by a fastener, the lower end of the large bevel gear 6 is mounted on the large bevel gear mounting seat 16 through a large bevel gear bearing 7, the inner ring of the large bevel gear bearing 7 is in contact with a shaft shoulder on the large bevel gear 6 above the large bevel gear, and the outer ring of the large bevel gear bearing 7 is in contact with a boss on the middle shaft hole of the large bevel gear mounting seat 16 below the large bevel gear mounting seat, so that the large bevel gear bearing 7 has a reliable fixed position, and the large bevel gear 6 is axially fixed and has a reliable position through the interaction when the small bevel gear 5 is meshed with the large bevel gear 6, the small bevel gear 5 is vertically mounted on the side surface of the box body 2, and the small bevel gear 5 is integrated with the shaft and is mounted on the side surface of the box body 2 through the bearing 4;

referring to fig. 1 and 3, the threaded spline groove integrated shaft 3 is matched with the internal thread of the screw drive nut 9 through the screw drive external thread on the shaft, the screw drive nut 9 is installed on the lower end cover bearing 13 at the outer side, the lower end of the inner ring of the lower end cover bearing 13 is contacted with the shaft shoulder at the lower end of the screw drive nut 9, the upper end of the inner ring is contacted with a shaft sleeve 14, and is further arranged at the thread position of the upper end of the screw drive nut 9 through a round nut 15 to limit the inner ring to move upwards, thereby limiting the axial degree of freedom of the inner ring of the lower end cover bearing 13, directly contacting the upper end of the outer ring of the lower end cover bearing 14 with the boss of the middle shaft hole of the lower end cover 9 of the box body, the lower end of the outer ring of the bearing is fixed by a bearing cover 12, thereby limiting the axial degree of freedom of the outer ring of the bearing 13 of the lower end cover, ensuring that the screw drive nut 9 arranged in the bearing 13 of the lower end cover has a fixed axial position, the bearing cover 12 is installed in a corresponding threaded hole 20 at the lower end of the lower end cover 8 of the box body by using a fastener.

Referring to fig. 1, 3 and 5, the upper end cover 1 and the lower end cover 8 of the box body are connected with the box body 2 through threaded holes 17 and 22 distributed at corresponding positions by using fasteners, so that all parts in the box body are fixed, and the whole mechanism can be arranged on a frame through a hole 24 on the outer side of the lower end cover 8 of the box body, so that the whole ditching depth adjusting transmission mechanism can move along with the ditcher.

Referring to fig. 1, 3 and 5, the locking disk 10 is mounted in a threaded hole 19 at the lower end of the screw nut 9 by using a fastener, the electromagnetic push rod 11 is mounted in a threaded hole 25 at the lower surface of the lower end cover 8 of the box body by using a fastener, and the electromagnetic push rod head at the other end can be withdrawn from or inserted into a groove in the circumferential side of the locking disk 10 along with different working states.

Referring to fig. 1, the ditching cutter may be mounted through a ditching cutter attachment hole 26 at the lower end of the threaded spline housing integral shaft 3, and may rotate or move up and down with the threaded spline housing integral shaft 3.

Referring to fig. 1 and 5, the working principle of the ditching depth adjusting transmission mechanism is briefly described in combination with the ditching depth adjusting transmission mechanism; the spiral tilling depth adjusting mechanism mainly comprises two working stages of spiral soil entering and advancing ditching, and the working principle is as follows: when a cutter needs to be screwed into soil, the electromagnetic push rod 11 works to push a pawl at the head of the electromagnetic push rod to be embedded into a ratchet on the locking disc 10, so that the locking disc 10 cannot rotate, the axial rotation freedom degree of the helical transmission nut 9 is restrained, at the moment, the threaded spline groove integral shaft 3 and the helical transmission nut 9 can relatively rotate, when power is input to the large bevel gear 6, due to the fact that a spline on a shaft hole of the large bevel gear 6 exists, the spline is matched with a spline groove on the threaded spline groove integral shaft 3 through the spline, so that the threaded spline groove integral shaft 3 is driven to rotate, at the moment, the threaded spline groove integral shaft 3 simultaneously rotates and axially moves downwards in the helical transmission nut 9 in a fixed state, the cutter is driven to rotate and descend into soil through the helical transmission effect, and the ditching depth adjustment is completed; when the mechanism enters an advancing ditching state, the pawl at the head of the electromagnetic push rod is withdrawn from the ratchet groove on the locking disc 10, at the moment, because the locking disc 10 does not fix the axial rotation freedom degree of the locking disc, the locking disc 10, the spiral transmission nut 9 and the threaded spline groove integrated shaft 3 can only form a whole body to rotate around the axis of the threaded spline groove integrated shaft 3, when power is transmitted to the large bevel gear 6, the spiral transmission nut 9 and the threaded spline groove integrated shaft 3 form a whole body to rotate together in the lower end cover bearing 13, at the moment, the threaded spline groove integrated shaft 3 cannot move up and down axially, and therefore the current required ditching depth is maintained to drive the cutter to normally ditch.

Claims (5)

1. A ditching depth adjusting transmission mechanism is characterized by mainly comprising a box body upper end cover (1), a box body (2), a box body lower end cover (8), a large bevel gear mounting seat (16) fixedly arranged at the middle end of the box body, a threaded spline groove integrated shaft (3), a locking disc (10), an electromagnetic push rod (11), a small bevel gear (5) arranged on the side surface of the box body (2) through a bearing (4), a large bevel gear (6) arranged on the large bevel gear mounting seat (16) through a large bevel gear bearing (7), and a spiral transmission nut (9) arranged in the box body lower end cover (8) through a lower end cover bearing (13), the upper end cover (1) of the box body, the box body (2) and the lower end cover (8) of the box body are connected through fasteners to form the whole box body of the depth adjusting transmission mechanism, and is fixed on the frame by bolts through holes (24) on the lower end cover (8) of the box body; the small bevel gear (5) is meshed with the large bevel gear (6).

2. A ditching depth adjusting transmission mechanism is characterized in that a plurality of splines are machined in an inner hole of a large bevel gear bearing (7).

3. The utility model provides a drive mechanism is adjusted to ditching degree of depth, its characterized in that screw thread spline groove integrated shaft (3) are processing a plurality of axial spline groove on the external screw thread lead screw, and the spline groove cooperatees with a plurality of splines of big bevel gear (6) hole processing, and the internal thread of external screw thread on the screw thread spline groove integrated shaft (3) and screw drive nut (9) constitutes a pair of screw nut transmission, and screw thread spline groove integrated shaft (3) lower extreme has ditching cutter connecting hole (26).

4. The utility model provides a drive mechanism is adjusted to ditching degree of depth which characterized in that screw drive nut (9) pass through box bottom end cover bearing (13) and install in box bottom end cover (8), and through bearing cap (12), axle sleeve (14), round nut (15) restriction box bottom end cover bearing (13) axial degree of freedom.

5. A transmission mechanism for adjusting the ditching depth is characterized in that a locking disc (10) is a ratchet wheel and is fixedly installed at the lower end of a spiral transmission nut (9) through a screw, an electromagnetic push rod (11) is fixedly installed on a lower end cover (8) of a box body, and the tail end of the push rod is of a pawl structure and can be embedded into a ratchet of the locking disc.

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