A composite gear reduction box and a ridge-building machine including the reduction box

Abstract

The present invention discloses a compound gear reduction box and a ridge-building machine including the reduction box. The compound gear reduction box includes a main housing and a sub-housing, and the sub-housing rotates around the central axis of the main housing. The small cylindrical gear and the small bevel gear in the main housing rotate synchronously with the main transmission shaft. The small bevel gear meshes with the large bevel gear, which is mounted on the flange shaft, and the flange shaft rotates synchronously with the large bevel gear. The small cylindrical gear in the main housing meshes with the intermediate gear in the sub-housing, and the intermediate gear meshes with the large gear, which is mounted on the driven shaft and rotates synchronously with the driven shaft. The present invention also includes a ridge-building machine equipped with the gear transmission reduction box. The flange shaft of the gear reduction box main housing of the ridge-building machine is connected to the cutter disc to drive the cutter disc to rotate, and the driven shaft of the sub-housing is connected to the pressure roller to drive the large and small wiper discs to rotate. The integrated design of the compound gear reduction box solves the problems of low transmission efficiency and insufficient power of the ridge-building machine.

Description

Technical Field

[0001] The invention relates to agricultural machinery, in particular to a compound gear reduction box and a ridge builder comprising the transmission mechanism. Background Art

[0002] Ridge builders are widely used in agricultural production, but the current ridge builders have low transmission efficiency and poor stability. They cannot be driven by small horsepower tractors, are prone to sideways when building ridges, and are difficult to maintain.

[0003] The chain drive has low transmission efficiency and is very easy to fail in the application of the ridge-building machine. Patent application No. 201410587949.6 describes the failure mode of the chain drive in the ridge-building machine in the background technology, as well as various disadvantages, such as vibration, impact, easy wear and high cost.

[0004] With the development, gear transmission has been widely used in the field of ridge building machines. However, the existing ridge building machines use multiple transmission devices to transmit power to the cutter disc and wiper disc respectively. This arrangement easily leads to low transmission efficiency of the ridge building machine and is difficult to maintain and adjust. Most of the multi-stage gear transmissions on the market use rigid connections, which are prone to problems and difficult to maintain. Application No. 201721549821.6 invented a side-type ridge building machine that uses gear transmission. The cutter disc is connected to the soil box gear, and the wiper disc box gear is connected to the wiper disc shaft. Although it also uses full gear transmission, it is not an integrated transmission, the transmission efficiency is not high, and maintenance is still inconvenient.

[0005] With the development of ridge-building machines, in order to adapt to different working conditions, there is a need for an efficient ridge-building machine that can build ridges using a low-power tractor, and the ridge-building machine can be suitable for different working conditions, the ridge-building height and ridge-building width can be adjusted, and maintenance is convenient. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention discloses a compound gear reduction box and a ridge-building machine including the transmission mechanism. The compound gear reduction box mainly includes a main housing and a sub-housing. The sub-housing rotates around the central axis of the main housing. The pull rod is adjusted to adjust the angle between the sub-housing and the main housing, so that the pressure roller height is adjustable and the ridge-building height is adjustable. The small wiper plate can move left and right along the pressure roller and is fixed during operation to adjust the ridge-building width. The compound main housing includes a main transmission shaft, a small gear, a small bevel gear, a large bevel gear, and a flange shaft. The small cylindrical gear and the small bevel gear are mounted on the main transmission shaft and rotate synchronously with the main transmission shaft. The small bevel gear meshes with the large bevel gear, and the large bevel gear is mounted on the flange shaft, and the flange shaft rotates synchronously with the large bevel gear. The sub-housing mainly includes an intermediate gear, a large gear, a driven shaft, etc. The small gear in the main housing meshes with the intermediate gear in the auxiliary housing, the two ends of the synchronous shaft of the intermediate gear are installed on bearings, the intermediate gear meshes with the large gear, the large gear is installed on the driven shaft and rotates synchronously with the driven shaft. The present invention also includes a ridge-building machine equipped with the composite gear transmission reducer, the composite gear reducer main housing of the ridge-building machine has a flange connected to the frame partition, the main housing flange shaft is connected to the cutter disc to drive the cutter disc to rotate, the auxiliary housing driven shaft is connected to the pressure roller to drive the large and small wiper discs to rotate.

[0007] Preferably, the ridge builder is composed of a pressure roller, a small wiper disc, a large wiper disc, a retaining plate, a cutter disc, a soil knife, a partition, a traction frame, an input gearbox, an adjustment rod, an anti-lateral ground wheel, a transmission shaft, a universal joint, a scraper plate, a compound gear reduction box, a pull rod, a locking pin, etc. The cutter disc and the wiper disc of the ridge builder are arranged on one side, the wiper disc is fixed on the pressure roller, the cutter disc and the pressure roller are driven by a gear reduction box, and the other side is counterweighted by the anti-lateral ground wheel, and the ground wheel is a double-sided cone.

[0008] Preferably, the cutter disc of the ridge builder is equipped with 8 soil cutting knives fixed by bolts, and the cutter disc and the wiping disc are separated by a partition.

[0009] Preferably, the compound gear reducer is arranged on the same side as the cutter disc and the wiper disc, and is fixed to the frame partition by bolts through a flange. The main housing flange shaft flange of the compound gear reducer is connected to the cutter disc to transmit power to the cutter disc, and the driven shaft of the auxiliary housing of the compound gear reducer is connected to the pressure roller through a spline to drive the pressure roller, the large wiper disc, and the small wiper disc to rotate together.

[0010] Preferably, the large wiping disc has a diameter of 70-90 cm and is welded to the pressure roller. The small wiping disc is a hollow cylinder in the middle and is mounted on the outside of the pressure roller. The small wiping disc is adjustable left and right on the pressure roller and is fixed with bolts after adjustment.

[0011] Preferably, the small cylindrical gear and small bevel gear of the main housing of the compound gear reducer are mounted on the main transmission shaft and rotate synchronously with the main transmission shaft. The small cylindrical gear meshes with the intermediate gear in the auxiliary housing, and both ends of the synchronous shaft of the intermediate gear are mounted on bearings. The intermediate gear meshes with the driven large gear in the auxiliary housing, and the driven large gear shaft is mounted on the driven shaft, and the driven shaft rotates synchronously with the driven large gear. The small bevel gear meshes with the large bevel gear in the main housing, and the large bevel gear is mounted on the flange shaft, and the flange shaft rotates synchronously with the large bevel gear.

[0012] Preferably, the main transmission shaft and the driven shaft are arranged parallel to each other, and the flange shaft and the main transmission shaft are arranged perpendicularly.

[0013] Preferably, the left part of the main case has a left embedded end of the main case and the right part has a right embedded end of the main case, and a gear meshing hole is left at the left embedded end of the main case. The left embedded end of the main case and the right embedded end of the main case are both hollow cylindrical, and the centers of the two parts are coaxial. The left front part of the auxiliary case is a hollow hole, and the left front part of the auxiliary case is sleeved on the left embedded end of the main case. The right front part of the auxiliary case is fixed to the sleeve flange by bolts, and the sleeve flange is sleeved on the right embedded end of the main case. The hole center of the sleeve flange is coaxial with the center of the hollow hole of the left front part of the auxiliary case to form a rotation axis, and the rotation axis of the auxiliary case is coaxial with the central axis of the main case, and the auxiliary case rotates around the central axis of the main case.

[0014] Preferably, the rear center of the sub-box of the compound gear reduction box has a lug seat, the lower pull rod is connected to the lug seat on the sub-pin body through a pin and a lock pin, the upper pull rod in the pull rod is connected to the frame, the rotating pin crosses the pull rod seat, and the rotating pin is rotated. The pull rod seat drives the upper rod and the lower pull rod to shorten and lengthen at the same time, so as to adjust the angle position of the sub-box and the central axis of the main box, and the sub-box drives the pressure roller and the large and small wiper plates to rise and fall.

[0015] Compared with the prior art, the composite gear transmission reduction box and the ridge-building machine including the reduction box provided by the present invention adopt a more reasonable layout, and the ridge-building height and width are adjustable, so that the ridge-building machine has high working efficiency, compact structure, stable transmission, precise transmission, low failure rate, and can be applied to the ridge shape requirements of different regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a front three-dimensional view of the ridge builder of the present invention, in order to illustrate the front structure of the ridge builder.

[0017] Attached Figure 2 It is a rear three-dimensional view of the ridge-building machine of the present invention, in order to illustrate the rear structure of the ridge-building machine.

[0018] Attached Figure 3 The housing structure of the compound gear reduction box of the present invention is used to illustrate the components of the reduction box housing.

[0019] Attached Figure 4 It is a schematic diagram of the various parts of the shell of the compound gear reduction box of the present invention, and the "middle part of the main case", "neck of the main case", "left embedded end of the main case", "right embedded end of the main case", "left front part of the auxiliary case", "left middle part of the auxiliary case", "left rear part of the auxiliary case", "tail part of the auxiliary case" and "right front part of the auxiliary case" shown in the figure correspond to the parts referred to in this patent.

[0020] Attached Figure 5 This is the internal structure of the compound gear reduction box of the present invention, in order to illustrate the internal composition of the reduction box.

[0021] Attached Figure 6 It is a cross-sectional view of the pressure roller and the large and small wiper plates of the present invention, in order to illustrate the composition of the pressure roller and the wiper plate. DETAILED DESCRIPTION

[0022] Combination Figures 1 to 6 The ridge-building machine of the present invention is composed of the following structure: a pressure roller 1, a small wiping disc 2, a large wiping disc 3, a retaining plate 4, a cutter disc 5, a soil-taking knife 6, a frame partition 7, a traction frame 8, an input gearbox 9, an adjustment rod 10, an anti-side deviation wheel 11, a transmission shaft 12, a universal joint 13, a scraper plate 14, a compound gear reduction box 15, a pull rod 16, and a locking pin 17.

[0023] The input gearbox 9 is installed on the traction frame 8, and transmits the power input by the tractor to the transmission shaft 12. One end of the transmission shaft 12 is connected to the input gearbox 9 through a universal joint (the same type as the universal joint 13), and the other end is connected to the main transmission shaft 1526 of the compound gear reduction box through the universal joint 13. The cutter disc 5 and the pressure roller 1 of the ridge builder are arranged on the same side. The cutter disc 5 is connected to the flange shaft 1510 of the compound reduction box 15, and the pressure roller 1 is connected to the driven shaft 1523 of the compound reduction box 15 through a spline. The cutter disc 5 is fixed with 8 soil knives 6 by bolts. The cutter disc 5 is separated from the wiper disc 3 by a partition 7, which is welded on the frame and connected to the scraper plate 14 by bolts. The main box body of the compound gear reduction box 15 is provided with a flange mounting plate, and the flange mounting plate partition 7 is connected by bolts. The other side of the ridge builder is counterweighted by an anti-side deviation ground wheel 11, and the ground wheel is a double-sided cone. The height of the anti-side deviation wheel 11 from the ground is adjusted by adjusting the rod 10. The retaining plate 4 is installed above the pressure roller 1 and the cutter disc 5.

[0024] The housing and the pull rod of the compound gear reducer 15 are Figure 3 In order to better illustrate the shell structure, the main box and the auxiliary box are divided into several parts, such as Figure 4 As shown, the various parts of the gear reducer mentioned in the manual are Figure 4As shown. The protective ring 1501 mainly prevents weeds and soil from being drawn into the gear reducer 15. The protective ring 1501 is mounted on the neck of the main box 1502 and can also be welded on the cutter disc 5. The main box 1502 has a flange mounting surface between the neck of the main box and the middle part of the main box, which is mounted on the partition 7 through flange surface bolts. The middle part of the main box 1502 has a tail end cover 1503 outside. The left part of the main box 1502 has a left embedded end of the main box and the right part has a right embedded end of the main box. The left embedded end of the main box has a gear meshing hole. The left embedded end of the main box and the right embedded end of the main box are both hollow cylindrical, and the centers of the two parts are coaxial. The left front part of the sub-box 1504 is a hollow hole, and the left front part of the sub-box is mounted on the left embedded end of the main box 1502. The left end cover 1505 of the sub-box is installed on the left front part of the sub-box 1504. The right front part of the sub-box 1504 is fixed to the set flange 1507 by bolts. After being fixed, the hole center of the set flange 1507 is coaxial with the center of the hollow hole in the left front part of the sub-box. The set flange 1507 is set on the right embedded end of the main box 1502. The center of the left embedded end of the main box and the center of the right embedded end of the main box form the central axis of the main box. The hollow hole in the left front part of the sub-box is coaxial with the hole center of the set flange 1507 to form the rotation axis of the sub-box. The rotation axis of the sub-box is coaxial with the central axis of the main box. The sub-box rotates around the central axis of the main box. The left middle part of the sub-box has a refueling hole, and the interior is a hollow structure. The left middle part of the sub-box has a symmetrical bearing mounting seat for mounting the intermediate gear 1516. The left rear part of the auxiliary box is a hollow cylindrical structure, and the interior is used to install the large gear 1519. The left rear part of the auxiliary box is sealed with a sealing end cover 1506. The rear part of the auxiliary box is a hollow structure, and is used to install the pressure roller transmission shaft 1523. The rear part of the auxiliary box is a cylindrical structure, and the central axis of the rear part of the auxiliary box is parallel to the rotation axis of the auxiliary box.

[0025] The center of the tail of the secondary box body has a lug seat, the upper pull rod 1601 and the lower pull rod 1604 in the pull rod 16 are respectively connected to the pull rod seat 1602 by threads, and the rotating pin 1603 crosses the pull rod seat 1602. The center of the outer shell of the retaining plate 4 has a lug seat, the upper pull rod 1601 is connected to the lug seat of the retaining plate 4 by a locking pin, and the lower pull rod 1604 is connected to the lug on the secondary pin body by a pin 1605 and a locking pin. When the rotating pin 1603 is rotated, the pull rod seat 1602 drives the upper rod 1601 and the lower pull rod 1604 to shorten and lengthen at the same time, and the secondary box body rotates around the central axis of the main box body.

[0026] Figure 5As shown, the transmission shaft 12 is connected to the main transmission shaft 1526 through the universal joint 14, and the pinion 1514 and the small bevel gear 1524 are fixed on the main transmission shaft 1526 through the spline end. A positioning ring 1511, a bearing 1512, and a sleeve 1513 are installed between the pinion 1514 and the small bevel gear 1524. The pinion 1514 is tightened by the end cover 1505 through the bearing 1515. The positions of the bearings 1515 and 1512 are distributed on both sides of the gear hole at the left embedded end of the main housing, and the positions of the bearings 1527 are respectively distributed at the right embedded end of the main housing, forming three fulcrums.

[0027] The large bevel gear 1529 is fixed on the flange shaft 1510 through the spline end, and the large bevel gear 1529 is meshed with the small bevel gear 1524. The flange shaft 1510 is vertically distributed with the main transmission shaft 1526. Bearings 1531 and 1532 are installed between the flange of the flange shaft 1510 and the large bevel gear 1529. The bearings 1531 and 1532 are positioned by a sleeve, and the bearings 1531 and the large bevel gear 1529 are positioned by a sleeve 1530. The large bevel gear 1529 and the bearing 1531 are distributed in the middle part of the main housing, and the bearing 1532 is distributed in the middle neck of the main housing. The flange of the flange shaft 1510 is connected to the cutter head 5 by bolts. The power drives the small bevel gear 1524 to rotate through the main transmission shaft 1526, and the small bevel gear 1524 is meshed with the large bevel gear 1529 to achieve deceleration, increase the torque, and drive the cutter head 5 to rotate.

[0028] The intermediate gear 1517 is meshed with the pinion 1514, and the intermediate gear 1517 is mounted on the intermediate shaft 1516 through a bearing, and the intermediate shaft 1516 supports the intermediate gear 1517. The intermediate shaft 1516 is fixed to the shaft mounting seat in the middle of the auxiliary housing, and the intermediate gear 1517 fixes the bearing in place through a retaining ring. The intermediate shaft 1516 is fixed to the left middle of the auxiliary housing, and both ends are fixed to the housing.

[0029] The large gear 1519 is fixed on the driven shaft 1523 through the spline end and locked by the spline sleeve 1518. The large gear 1519 is arranged at the left rear part of the auxiliary housing and meshes with the intermediate gear 1517. The bearings 1520 and 1521 are arranged side by side on the left side of the auxiliary housing, and the bearing 1522 is arranged on the right side of the auxiliary housing, and the middle is positioned with a sleeve. The large gear 1519 rotates together with the driven shaft, and the driven shaft is connected to the pressure roller, driving the pressure roller 1 to rotate. The center of the small wiper disc 2 is a hollow cylindrical structure, which is mounted on the pressure roller 1. The large wiper disc 3 is welded to the pressure roller 1 and rotates together with the pressure roller 1.

[0030] Eight earth-cutting knives 6 are evenly installed and arranged on the cutter head 5 of the ridge-building machine by means of bolts, and the cutter head 5 and the pressure roller 1 are arranged on the same side.

[0031] The roller shaft 101 of the pressure roller 1 has a tail wheel 103, a connecting sleeve 104, and a front sleeve 105 inside. The tail wheel 103 and the front sleeve 104 are welded inside the roller shaft 101 and welded to the connecting sleeve 104. The connecting sleeve 104, the front sleeve 105, the tail wheel 103 and the driven shaft 1523 are fixed by splines and locked with the end cover 102. The wiper wheel 302 of the large wiper disc 3 is welded to the surface of the roller shaft 101, and has welded reinforcing ribs 301 inside. The number of reinforcing ribs can be 4 or 6. The small wiper 2 can move left and right on the roller 1 to adjust the width of the ridge. After the adjustment is completed, the small wiper disc is locked with bolts along the circumference.

[0032] Working principle: under the traction of the tractor, the gearbox 9 is transmitted to the gearbox 15 through the transmission shaft 12. The main housing of the gearbox 15 drives the flange shaft 1510 to rotate. The flange shaft 1510 and the cutter head 5 are connected through the soil taking knife 6. The soil taking knife 6 rotates clockwise, turning the soil on the ground to one side and sending it to the fender 4. The soil falls onto the pressure roller 1, the small wiper plate 2, and the large wiper plate 3. The driven shaft 1523 of the auxiliary housing of the gearbox 15 rotates, driving the pressure roller 1, the small wiper plate 2, and the large wiper plate 3 to rotate, and the loose soil taken up is forced to be formed under the pressure of the small wiper plate 2 and the large wiper plate 3. At the same time, the extension and contraction of the pull rod 16 is adjusted, and the entire auxiliary housing rotates around the rotation center of the main housing, thereby adjusting the height of the pressure roller 1 from the ground and the height of the ridge. When the ridge builder is pulled by a tractor, the cutter disc and the tractor do not run in the same direction, but rotate in the other direction. The lateral force generated will cause the tractor to deviate. At this time, the anti-lateral deviation wheel 11 can be used for balance, and the height of the anti-lateral deviation wheel 11 can be adjusted up and down by the support rod 10.

[0033] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compound gear reduction box used as a transmission mechanism of a ridge builder, characterized in that: The compound gear reduction box includes a main box body and a sub-box body, and the sub-box body rotates around the central axis of the main box body; wherein the compound main box body includes a main transmission shaft, a pinion, a small bevel gear, a large bevel gear, and a flange shaft, wherein the pinion and the small bevel gear are mounted on the main transmission shaft and rotate synchronously with the main transmission shaft, the small bevel gear is meshed with the large bevel gear, the large bevel gear is mounted on the flange shaft, and the flange shaft rotates synchronously with the large bevel gear; the sub-box body includes an intermediate gear, a large gear, and a driven shaft, the pinion gear in the main box body is meshed with the intermediate gear in the sub-box body, both ends of the synchronous shaft of the intermediate gear are mounted on bearings, the intermediate gear is meshed with the large gear, and the large gear is mounted on the driven shaft and rotates synchronously with the driven shaft.

2. A ridge-building machine, characterized in that: It includes a pressure roller, a small wiping disc, a large wiping disc, a cutter disc, a partition and the compound gear reducer as described in claim 1, wherein the flange shaft of the main housing of the compound gear reducer is connected to the cutter disc to drive the cutter disc to rotate, and the driven shaft of the auxiliary housing is connected to the pressure roller to drive the large and small wiping discs to rotate, and the small wiping disc can move left and right along the pressure roller and is fixed during operation to adjust the ridge width.

3. The ridge-building machine according to claim 2, characterized in that: The cutter disc, large wiping disc and small wiping disc of the ridge building machine are arranged on one side, the large wiping disc and small wiping disc are fixed on the pressure roller, the cutter disc and the pressure roller are driven by a gear reduction box, and the other side is counterweighted by an anti-side deviation ground wheel, and the ground wheel is a double-sided cone.

4. The ridge builder according to claim 2, characterized in that: The cutter disc of the ridge-building machine is fixed with 8 soil-taking knives by bolts, and the cutter disc is separated from the large wiping disc and the small wiping disc by a partition.

5. The ridge-building machine according to claim 2, characterized in that: The large wiping disc has a diameter of 70-90cm and is welded on the pressure roller. The small wiping disc has a hollow cylinder in the middle and is sleeved on the outside of the pressure roller. The small wiping disc can be adjusted left and right on the pressure roller and is fixed with bolts after adjustment.

6. The ridge builder according to claim 2, characterized in that: The left part of the main box body has a left embedded end of the main box body and the right part has a right embedded end of the main box body, and a gear meshing hole is left at the left embedded end of the main box body; the left embedded end of the main box body and the right embedded end of the main box body are both hollow cylindrical, and the centers of the two parts are coaxial; the left front part of the auxiliary box body is a hollow hole, and the left front part of the auxiliary box body is sleeved on the left nested end of the main box body; the right front part of the auxiliary box body is fixed to the sleeve flange by bolts, and the sleeve flange is sleeved on the right embedded end of the main box body; the hole center of the sleeve flange is coaxial with the center of the hollow hole of the left front part of the auxiliary box body to form a rotation axis, the auxiliary box body rotation axis is coaxial with the central axis of the main box body, and the auxiliary box body rotates around the central axis of the main box body.

7. The ridge builder according to claim 2, characterized in that: The compound gear reduction box auxiliary box has a hanging ear seat at the center of the rear end, and the lower pull rod is connected to the hanging ear seat on the auxiliary pin body through a pin and a locking pin. The upper pull rod in the pull rod is connected to the frame, and the rotating pin crosses the pull rod seat. The rotating pin is rotated; the pull rod seat drives the upper rod and the lower pull rod to shorten and extend at the same time, so as to adjust the angular position of the auxiliary box and the central axis of the main box. The auxiliary box drives the pressure roller and the large and small wiping plates to rise and fall.

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