CN207634625U - A kind of power corner delivery casing for realizing positive and negative rotation - Google Patents

Abstract

The utility model discloses a power corner output box for realizing forward and reverse rotation, which comprises an input shaft and an output shaft which form a cross, a shift sliding sleeve is installed on the input shaft, and both sides of the shift sliding sleeve are installed through copper sleeves. There is an input shaft bevel gear; a coaxial large bevel gear and a small bevel gear of the intermediate shaft are installed between the input shaft and the output shaft, the large bevel gear of the intermediate shaft meshes with the bevel gear of the input shaft, and the small bevel gear of the intermediate shaft is installed on the The bevel gear of the output shaft on the output shaft meshes; there is a shift fork on the outside of the shift sleeve, and the shift fork is set on the shift fork connecting rod. There are three grooves on the shift fork connecting rod. The shift fork There are bayonets that can be snapped into the grooves and compression springs that push against the bayonets; the shift fork is moved left and right by the shift spindle assembly, and the shift spindle assembly is connected with the shift handle. The utility model can realize 90-degree power reversing, stable forward and reverse power output, can realize front and rear double power output, reliable operation, and can meet multi-purpose requirements.

Description

A power corner output box for forward and reverse rotation

technical field

The utility model relates to agricultural machinery equipment, in particular to a power corner output box which is applied to the walking mechanisms of agricultural machinery such as 30-70 horsepower tractors and self-propelled rotary cultivators and can realize forward and reverse rotation.

Background technique

At present, the forward and backward operations of the agricultural machinery used in China are generally through setting forward gears and reverse gears in the gearbox. There are many forward gears and few reverse gears. With the rapid development of agricultural mechanization, one machine with multiple functions It has become a development trend. Fine farming has higher and higher requirements for machines. However, in traditional gearboxes, there are many forward gears, few reverse gears, and a large speed ratio span, which cannot meet the requirements of multi-working conditions and multiple crops. Too few reverse gears It cannot meet the requirements of fine positioning and fast reverse when some machines are working, which greatly reduces the working efficiency. If a plurality of reverse gears are directly added in a gearbox with a traditional structure, the structure is relatively complicated, the manufacturing cost is high, the volume is huge, and maintenance is difficult, which is not conducive to the overall layout.

Utility model content

The technical problem to be solved by the utility model is to provide a power corner output box that realizes positive and negative rotation. It is connected with a general-purpose gearbox and installed on the traveling mechanism, which can realize the positive and negative rotation of the output shaft, so that the machine can rotate at the same speed. Compare forward and backward, enrich the reverse gear, improve the working efficiency and utilization of the machine.

The utility model solves the above technical problems with the following technical solutions:

The utility model realizes the forward and reverse power corner output box, which includes a box body, an input shaft and an output shaft. Located at the lower part, the input shaft is equipped with a shift sleeve that can slide left and right, and the left and right sides of the shift sleeve are equipped with symmetrically arranged input shaft bevel gears through copper sleeves. The shift sleeve and input shaft bevel gear are respectively set There is a tooth groove that makes the two form a joint; a coaxial intermediate shaft bevel gear and an intermediate shaft small bevel gear are installed between the input shaft and the output shaft, the intermediate shaft large bevel gear meshes with the input shaft bevel gear, and the intermediate shaft small bevel gear The bevel gear meshes with the bevel gear of the output shaft installed on the output shaft; a shift fork that can drive it to move left and right is provided on the outside of the shift sleeve, and the shift fork is set on the shift fork that is arranged parallel to the input shaft On the connecting rod, there are three grooves on the connecting rod of the shift fork. The shift fork is provided with a detent that can be snapped into the groove and a compression spring that presses the detent; The shift mandrel assembly is moved left and right, and the shift mandrel assembly is connected with the shift handle installed on the outside.

The input shaft of the utility model is equipped with a clutch on the outside of the casing.

The shaft of the large bevel gear of the intermediate shaft and the small bevel gear of the intermediate shaft described in the utility model is installed on the bearing seat through the bearing, and the bearing seat is fixed on the casing.

According to the utility model, the bevel gear of the input shaft and the copper sleeve are installed in a tight fit, and the copper sleeve is installed on the input shaft with a clearance fit.

The utility model has the following beneficial effects:

1. The power output box of the utility model can realize 90-degree power reversing, stable forward and reverse power output, can realize front and rear double power output, reliable operation, and can meet multi-purpose requirements.

2. The power output box of the utility model has a simple structure and is convenient for maintenance.

3. The front end of the input shaft of the power output box of the utility model is equipped with a clutch. When the clutch cuts off the power, it is convenient for independent shifting operation; when the clutch is engaged, the power connection is made more stable, thereby prolonging the service life of the power output box.

Description of drawings

Fig. 1 is a schematic diagram of the facade structure of the power corner output box for forward and reverse rotation of the utility model.

FIG. 2 is a schematic right view of FIG. 1 .

FIG. 3 is a schematic partial cross-sectional view of FIG. 1 .

In the figure: 1-box, 2-clutch, 3-input shaft, 4-lock nut 1, 5-bearing cover 1, 6-bearing 1, 7-copper sleeve, 8-input shaft bevel gear, 9-change Sliding sleeve, 10-bearing cover two, 11-intermediate shaft large bevel gear, 12-intermediate bearing seat, 13-bearing two, 14-intermediate shaft small bevel gear, 15-lock nut two, 16-output shaft, 17 - output shaft bevel gear, 18 - shift spindle assembly, 19 - shift fork, 20 - spacer, 21 - fork connecting rod, 22 - compression spring, 23 - bayonet pin, 24 - shift handle, 25 —Bearing three, 26—bearing cover.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in the accompanying drawings, the utility model realizes the forward and reverse power corner output box, which includes a box body 1 and a clutch 2. There are input shafts 3 and output shafts 16 arranged in a cross in the box body 1. The input shaft 3 is in the Above, the output shaft 16 is below. The two ends of input shaft 3 are installed on the box body 1 by bearing one 6, and bearing cover one 5 is installed on the outside of bearing one 6 on the left side, and bearing cover two 10 is installed on the outside of bearing one 6 on the right side; End is installed on the casing 1 by bearing three 25 respectively, and the outside of bearing three 25 is equipped with bearing cover three 26. In the inner cavity of the box body 1, the middle part of the input shaft 3 is connected with a shift sliding sleeve 9 that can move left and right through a spline, and the input shaft bevel gear 8 that is symmetrically arranged is installed on both sides of the shift sliding sleeve 9, two The input shaft bevel gear 8 is installed on the input shaft 3 through the copper sleeve 7. The input shaft bevel gear 8 and the copper sleeve 7 are installed in a tight fit. The copper sleeve 7 is installed on the input shaft 3 and is a clearance fit. Rotate on input shaft 3. The shift sliding sleeve 9 and the input shaft bevel gear 8 are respectively provided with tooth grooves for engaging the two. During operation, the shift sliding sleeve 9 and the input shaft bevel gear 8 form a spline connection through the tooth grooves. The large intermediate shaft bevel gear 11 and the intermediate shaft small bevel gear 14 are installed between the input shaft 3 and the output shaft 16, and the intermediate shaft large bevel gear 11 and the intermediate shaft small bevel gear 14 are installed on the same rotating shaft. Installed on the middle bearing seat 12 through two bearings 13, the middle bearing seat 12 is fixed on the middle shelf of the casing 1. The large bevel gear 11 of the intermediate shaft meshes with the two input shaft bevel gears 8, the small bevel gear 14 of the intermediate shaft meshes with the output shaft bevel gear 17 installed on the output shaft 16, and the bottom end of the small bevel gear 14 is locked by a lock The tight nut 2 15 is fastened, and the output shaft 16 is provided with a spacer 20 for limiting the displacement of the output shaft bevel gear 17 .

The outside of the shift sliding sleeve 9 installed on the input shaft 3 is provided with a shift fork 19 that can be moved left and right. The shift fork 19 is set on the shift fork connecting rod 21, and the shift fork connecting rod 21 Installed on the box body 1 and arranged parallel to the input shaft 3, three semicircular grooves are provided on the shift fork connecting rod 21, and a bayonet pin 23 that can be snapped into the semicircular groove and a top pressure are provided on the shift fork 19. The compression spring 22 of the detent 23; the shift fork 19 is moved by the shift spindle assembly 18 to drive the shift sleeve 9 to move left and right, the shift spindle assembly 18 is installed on the casing 1, and the shift spindle The assembly 18 is connected with the shift handle 24 arranged on the outside of the casing; the left end of the input shaft 3 extends out of the casing and connects the clutch 2, and the clutch 2 is fixed by the locking nut-4.

When shifting, the shift handle 24 drives the shift spindle assembly 18, and the shift spindle assembly 18 moves the shift fork 19, so that the shift fork 19 drives the shift sliding sleeve 9 to move left and right on the input shaft 3 , when the compression spring 22 drops the bayonet pin 23 into the corresponding groove of the shift fork connecting rod 21, the power transmission is connected, and the switching operation of forward and reverse output or neutral gear can be realized, and forward gear, reverse gear or neutral gear can be realized .

When the shift handle 24 moves the shift spindle assembly 18 to the left, the shift sleeve 9 engages with the input shaft bevel gear 8 on the left side of the input shaft 3, and the bayonet pin 23 is positioned on the fork connecting rod 21. In the groove on the left, the power is transmitted to the large bevel gear 11 of the intermediate shaft through the input shaft bevel gear 8 on the left; In the right groove on the shift fork connecting rod 21, the power is transmitted to the intermediate shaft large bevel gear 11 through the right input shaft bevel gear 8; When the connecting rod 21 is in the middle groove, the shift sliding sleeve 9 is not engaged with the left and right input shaft bevel gears 8. At this time, the shift sliding sleeve 9 is idle running along with the input shaft 3, and the output shaft 16 has no power output. .

The power transmission route that the utility model can realize is as follows:

When the power is transferred to the input shaft 3 through the clutch 2, the shift sliding sleeve 9 installed on the input shaft 3 is driven to rotate. When the shift handle 24 moves the shift spindle assembly 18 so that the bayonet pin 23 is in the middle groove on the shift fork connecting rod 21, the shift sliding sleeve 9 is in no meshing state with the left and right input shaft bevel gears 8, and the gear shift Sliding sleeve 9 is idle running along with input shaft 3 at this moment.

When the shift handle 24 moves the shift spindle assembly 18 to move to the left, when the shift sleeve 9 meshes with the tooth groove of the input shaft bevel gear 8 on the left side of the input shaft 3, the bayonet pin 23 is positioned on the shift fork connecting rod 21 In the groove on the left side, the power is transmitted to the large bevel gear 11 of the intermediate shaft through the input shaft bevel gear 8 on the left, which drives the small bevel gear 14 of the intermediate shaft to run, and the small bevel gear 14 of the intermediate shaft and the output shaft installed on the output shaft The shaft bevel gear 17 is meshed, and the power is transmitted to the output shaft 16, so that the output shaft 16 forwardly rotates and outputs power.

When the shift handle 24 moves the shift spindle assembly 18 to the right, the shift sleeve 9 engages with the input shaft bevel gear 8 on the right side of the input shaft 3, and the bayonet pin 23 is positioned on the fork connecting rod 21. In the groove on the right, the power is transmitted to the large bevel gear 11 of the intermediate shaft through the input shaft bevel gear 8 on the right, and the power is transmitted to the output shaft 16 to realize the reverse output power of the output shaft 16.

The utility model has the following characteristics:

1. The power output box of the utility model can realize 90-degree power reversing, stable forward and reverse power output, can realize front and rear double power output, reliable operation, and can meet multi-purpose requirements.

2. The power output box of the utility model has a simple structure and is convenient for maintenance.

3. The clutch at the front end of the input shaft of the power output box of the utility model is convenient for independent shifting operation when the clutch cuts off the power; when the clutch is engaged, the power connection is made more stable, thereby prolonging the service life of the power output box.

Claims (5)

1. a kind of power corner delivery casing for realizing positive and negative rotation, including babinet, input shaft and output shaft, which is characterized in that described Input shaft and output shaft are mounted in babinet, and are arranged in right-angled intersection, and input shaft is located at top, and output shaft is located at lower part, defeated Enter the gearshift sliding sleeve that is equipped with and can horizontally slip on axis, the left and right sides of gearshift sliding sleeve is equipped with by copper sheathing to be symmetrical set Shaft bevel gear is inputted, gearshift sliding sleeve is respectively equipped with input shaft bevel gear makes the two form the tooth socket engaged；Input shaft and output Coaxial jackshaft large bevel gear and jackshaft cone pinion, jackshaft large bevel gear and input shaft bevel gear are installed between axis Engagement is formed, jackshaft cone pinion is engaged with the output shaft bevel gear formation on output shaft；The outside of gearshift sliding sleeve Equipped with the selector fork that it can be driven to move left and right, selector fork is sleeved on the shift fork connecting rod with input shaft parallel arrangement, is dialled It is set on fork connecting rod there are three groove, selector fork is equipped with the compressed spring of the bayonet lock and the bayonet lock that bears down on one that can be caught in groove； Selector fork is stirred it by the shift arbor assembly on babinet and is moved left and right, shift arbor assembly with mounted on outside Gear shifting handle is connected.

2. realizing the power corner delivery casing of positive and negative rotation according to claim 1, which is characterized in that the input shaft is stretching out Clutch is installed on the outside of babinet.

3. realizing the power corner delivery casing of positive and negative rotation according to claim 1, which is characterized in that the output shaft is equipped with Spacer for limiting output shaft bevel gear displacement.

4. realizing the power corner delivery casing of positive and negative rotation according to claim 1, which is characterized in that the installation jackshaft is big The axis of bevel gear and jackshaft cone pinion is mounted on by bearing on bearing block, and bearing block is fixed on babinet.

5. realizing the power corner delivery casing of positive and negative rotation according to claim 1, which is characterized in that the input shaft bevel gear It is installed for tight fit between copper sheathing, copper sheathing is mounted on input shaft, and is clearance fit.