Gearbox gear composite transmission assembly

Abstract

The utility model provides a gear box gear composite transmission assembly, and belongs to the technical field of machinery. The problem that an existing gearbox is poor in practicability is solved. The gearbox gear composite transmission assembly comprises a support and an input chain wheel, an upper output shaft and a lower output shaft are horizontally and rotationally arranged on the support, an upper gear and an upper driven chain wheel are rotationally arranged on the upper output shaft, a lower gear and a lower driven chain wheel are fixedly arranged on the lower output shaft in a sleeving mode, and the upper gear is meshed with the lower gear; the same chain is wound on the input chain wheel, the upper driven chain wheel and the lower driven chain wheel; the upper output shaft is further sleeved with a clutch sleeve, the clutch sleeve is located between the upper gear and the upper driven chain wheel, and the clutch sleeve is connected with the upper output shaft through a spline in a matched mode. The two end faces of the clutch sleeve are each provided with a circle of first combining blocks, and the end faces of the upper gear and the upper driven chain wheel are each correspondingly provided with second combining blocks which are matched with the first combining blocks and are the same as the first combining blocks in number. The gear composite transmission assembly of the gearbox is practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a gear box, in particular to a gear box gear composite transmission component. Background Art

[0002] A dual output gearbox is a special gearbox design that features two output shafts, making it possible to drive two or more devices or systems simultaneously.

[0003] The above-mentioned gearbox is a reduction gearbox for a harvester disclosed in the Chinese Patent Library (application number: 201420338228.7), which is mainly composed of a housing, an input component, and an output component. A conical ring and a clutch seat are fixedly mounted on the input shaft of the input component, a sliding ring is mounted on the conical ring, a ball spacer for evenly arranging the steel balls is mounted on the clutch seat, and a moving nut, an inner friction plate, an outer friction plate and a pressure plate are also mounted on the clutch seat; the driving gear integrated with the clutch housing is sleeved on the input shaft, and a driving bevel gear is mounted on one end of the input shaft; the driving gear is meshed with the output gear of the output component; the output gear is fixed on the output shaft; the driving bevel gear on the input shaft is meshed with the driven bevel gear fixed on the pulley shaft; the handle is fixed on the handle shaft, and the handle shaft is fixed to the fork at the same time; the fork is equipped with a shift block that cooperates with the slip ring and can make it move; the input shaft is supported on the housing through a bearing, and a pulley for outputting power through a belt is installed on the pulley shaft.

[0004] The above-mentioned gearbox realizes dual power output through the output shaft and the pulley shaft, but when the rotation direction of the power source remains unchanged, the pulley shaft or the output shaft can only rotate in one direction, and cannot be applied to working conditions that require switching the power rotation direction, and its practicality is poor. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a gearbox gear composite transmission component with strong practicability.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a gearbox gear compound transmission assembly, including a bracket and an input sprocket, an upper output shaft and a lower output shaft are horizontally rotatably provided on the bracket, characterized in that an upper gear and an upper driven sprocket are rotatably provided on the upper output shaft, a lower gear and a lower driven sprocket are sleeved and fixed on the lower output shaft, and the upper gear and the lower gear are meshed; the input sprocket, the upper driven sprocket and the lower driven sprocket are surrounded by the same chain; a clutch sleeve is also sleeved on the upper output shaft, the clutch sleeve is located between the upper gear and the upper driven sprocket, and the clutch sleeve is connected to the upper output shaft through a spline fit; a circle of coupling blocks 1 are formed on both end surfaces of the clutch sleeve, and coupling blocks 2 that match the coupling blocks 1 and are the same in number are correspondingly formed on the end surfaces of the upper gear and the upper driven sprocket.

[0007] During actual installation, the input sprocket is driven to rotate by the power source; the clutch sleeve is pushed by the shift fork to slide along the axial direction of the upper output shaft.

[0008] During operation, the input sprocket rotates clockwise, and drives the lower output shaft to rotate clockwise to output power through the chain, and the lower gear drives the upper gear to rotate; when the coupling block 1 is combined with the coupling block 2 on the upper gear, the lower gear drives the upper output shaft to rotate counterclockwise to output power; when the coupling block 1 is combined with the coupling block 2 on the upper driven sprocket, the upper gear rotates idly, and the upper driven sprocket directly drives the upper output shaft to output power clockwise.

[0009] The transmission assembly not only realizes dual power output, but also can change the rotation direction of the upper output shaft, effectively improving the working condition adaptation range of the transmission assembly and having high practicality.

[0010] In the above-mentioned gearbox gear compound transmission assembly, a tensioning sprocket meshing with the chain is also provided on the bracket. The tensioning sprocket is rotatably connected to the bracket through a connecting structure, and under the action of the connecting structure, the tensioning sprocket can adjust the height to keep the chain in a tensioned state, ensuring that the entire transmission is more stable and smooth.

[0011] In the above-mentioned gearbox gear compound transmission assembly, the connection structure includes a horizontally arranged connection shaft, the tensioning sprocket is rotatably arranged on the connection shaft and the two are arranged coaxially, the connection shaft is connected to the bracket through a positioning structure, and under the action of the positioning structure, the connection shaft can adjust its own axis height and lock it in the adjustment position. The above-mentioned design has the advantages of simple structure and stable operation.

[0012] In the above-mentioned gearbox gear compound transmission assembly, the positioning structure includes a rotating shaft formed on one end face of the connecting shaft and a positioning plate formed on the other end of the connecting shaft, the positioning plate and the connecting shaft are eccentrically arranged, the positioning plate and the rotating shaft are coaxially arranged, and the rotating shaft is rotatably arranged on the bracket, and the positioning plate is connected to the bracket through a locking structure so that the positioning plate can be locked in a swinging position. The position of the tensioning sprocket can be adjusted by rotating the positioning plate, which has the advantages of simple structure and convenient adjustment.

[0013] In the above-mentioned gearbox gear compound transmission assembly, the locking structure includes a screw and a through hole arranged along the axial direction of the positioning plate, and a threaded hole one is correspondingly arranged on the bracket, and there are multiple through holes and they are evenly distributed along the circumference of the positioning plate. The screw rod passes through one of the through holes and is screwed into the threaded hole one, and the screw head is tightly pressed on the positioning plate. The above-mentioned design has the advantages of simple structure and convenient operation.

[0014] As another solution, in the above-mentioned gearbox gear compound transmission assembly, the locking structure includes a bolt and an arc groove arranged along the axial direction of the positioning plate, and the bracket is provided with a corresponding threaded hole 2, the arc groove and the positioning plate are arranged coaxially, the bolt rod passes through the arc groove and is screwed into the threaded hole 2, and the bolt head is pressed tightly against the positioning plate. The above-mentioned design has the advantages of simple structure and convenient operation.

[0015] In the above-mentioned gearbox gear compound transmission assembly, the connecting shaft is a cast integral part, which effectively enhances the strength of the connecting shaft.

[0016] Compared with the prior art, the gearbox gear compound transmission assembly has the following advantages:

[0017] 1. This transmission assembly not only realizes dual power output, but also can change the rotation direction of the upper output shaft, effectively improving the working condition adaptation range of the transmission assembly and having high practicality.

[0018] 2. The position of the tensioning sprocket can be adjusted by rotating the positioning disk, which has the advantages of simple structure and convenient adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the gear box.

[0020] Figure 2 It is a connection diagram of the input sprocket, upper output shaft and lower output shaft.

[0021] Figure 3 This is a schematic diagram of the installation of the clutch sleeve.

[0022] Figure 4 It is a cross-sectional schematic diagram of the gearbox.

[0023] Figure 5 It is a schematic diagram of the connection between the tensioning sprocket and the connecting shaft.

[0024] In the figure, 1, bracket; 2, input sprocket; 3, upper output shaft; 4, lower output shaft; 5, upper gear; 6, upper driven sprocket; 7, lower gear; 8, lower driven sprocket; 9, chain; 10, clutch sleeve; 10a, coupling block 1; 11, coupling block 2; 12, fork; 13, tensioning sprocket; 14, connecting shaft; 14a, rotating shaft; 14b, positioning plate; 14c, through hole; 15, screw. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Embodiment 1

[0026] like Figure 1 and Figure 2As shown, the gearbox gear compound transmission assembly includes a bracket 1 and an input sprocket 2. The bracket 1 is provided with an upper output shaft 3 and a lower output shaft 4 for horizontal rotation, and the upper output shaft 3, the lower output shaft 4 and the input sprocket 2 are arranged in parallel. In the actual product, the upper output shaft 3 and the lower output shaft 4 are both rotatably arranged on the bracket 1 using bearings.

[0027] in,

[0028] An upper gear 5 and an upper driven sprocket 6 are rotatably provided on the upper output shaft 3, and the upper gear 5, the upper driven sprocket 6 and the upper output shaft 3 are coaxially arranged, and the upper gear 5 and the upper driven sprocket 6 are distributed along the axial direction of the upper output shaft 3. In actual products, the upper gear 5 and the upper driven sprocket 6 are both rotatably arranged on the upper output shaft 3 using bearings.

[0029] A lower gear 7 and a lower driven sprocket 8 are sleeved and fixed on the lower output shaft 4, and the upper gear 5 and the lower gear 7 are meshed.

[0030] like Figure 2 and Figure 3 As shown, the input sprocket 2, the upper driven sprocket 6 and the lower driven sprocket 8 are wound with the same chain 9, so that the three are driven by the chain 9. The upper output shaft 3 is also covered with a clutch sleeve 10, which is located between the upper gear 5 and the upper driven sprocket 6, and the clutch sleeve 10 is connected to the upper output shaft 3 through a spline fit, so that the clutch sleeve 10 and the upper output shaft 3 are fixed in the circumferential direction and slide in the axial direction; a circle of coupling blocks 10a are formed on both end surfaces of the clutch sleeve 10, and the end surfaces of the upper gear 5 and the upper driven sprocket 6 are correspondingly formed with coupling blocks 2 11 that match the coupling blocks 10a and are the same in number.

[0031] During actual installation, the input sprocket 2 is driven to rotate by a power source; the clutch sleeve 10 is pushed by the shift fork 12 to slide along the axial direction of the upper output shaft 3 .

[0032] During operation, the input sprocket 2 rotates clockwise, and drives the lower output shaft 4 to rotate clockwise to output power through the chain 9, and the lower gear 7 drives the upper gear 5 to rotate; when the combining block 10a is combined with the combining block 2 11 on the upper gear 5, the lower gear 7 drives the upper output shaft 3 to rotate counterclockwise to output power; when the combining block 10a is combined with the combining block 2 11 on the upper driven sprocket 6, the upper gear 5 idles, and the upper driven sprocket 6 directly drives the upper output shaft 3 to output power clockwise.

[0033] The transmission assembly not only realizes dual power output, but also can change the rotation direction of the upper output shaft 3, effectively improving the working condition adaptation range of the transmission assembly and having high practicality.

[0034] To further explain, the bracket 1 is also provided with a tensioning sprocket 13 meshing with the chain 9. The tensioning sprocket 13 is rotatably connected to the bracket 1 through a connecting structure, and under the action of the connecting structure, the tensioning sprocket 13 can adjust the height to keep the chain 9 in a tensioned state, ensuring that the entire transmission is more stable and smooth.

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, the connection structure includes a horizontally arranged connection shaft 14, and the tensioning sprocket 13 is rotatably arranged on the connection shaft 14 and the two are coaxially arranged. The connection shaft 14 is connected to the bracket 1 through a positioning structure, and under the action of the positioning structure, the connection shaft 14 can adjust its own axis height and lock it in the adjustment position. In actual products, the tensioning sprocket 13 is also rotatably arranged on the connection shaft 14 using a bearing.

[0036] In this embodiment, the positioning structure includes a rotating shaft 14a formed on one end surface of the connecting shaft 14 and a positioning plate 14b formed on the other end of the connecting shaft 14. The axes of the positioning plate 14b and the connecting shaft 14 are arranged in parallel. The positioning plate 14b and the connecting shaft 14 are arranged eccentrically. The positioning plate 14b and the rotating shaft 14a are arranged coaxially, and the rotating shaft 14a is rotatably arranged on the bracket 1.

[0037] in,

[0038] The positioning plate 14b, the connecting shaft 14 and the rotating shaft 14a are an integrated structure, and the connecting shaft 14 is preferably a cast integral part.

[0039] The rotating shaft 14a is installed as follows: a mounting hole matching the rotating shaft 14a is provided on the bracket 1, and the rotating shaft 14a is pivotally connected in the mounting hole.

[0040] The positioning plate 14b is connected to the bracket 1 through a locking structure so that the positioning plate 14b can be locked in the swing position. The position of the tensioning sprocket 13 can be adjusted by rotating the positioning plate 14b, which has the advantages of simple structure and convenient adjustment. Figure 1 As shown, the locking structure includes a screw 15 and a through hole 14c axially extending through the positioning plate 14b. The bracket 1 is provided with a corresponding threaded hole 1. There are a plurality of through holes 14c evenly distributed along the circumference of the positioning plate 14b. The rod of the screw 15 passes through one of the through holes 14c and is screwed into the threaded hole 1. The head of the screw 15 is pressed tightly against the side of the positioning plate 14b away from the threaded hole 1. The above design has the advantages of simple structure and convenient operation. Embodiment 2

[0041] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the locking structure includes a bolt and an arc groove axially extending through the positioning plate 14b, a threaded hole 2 is correspondingly provided on the bracket 1, the arc groove and the positioning plate 14b are coaxially arranged, the bolt rod passes through the arc groove and is screwed into the threaded hole 2, and the bolt head is tightly pressed against the positioning plate 14b. The above design has the advantages of simple structure and convenient operation.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A gearbox gear compound transmission assembly, comprising a bracket (1) and an input sprocket (2), wherein an upper output shaft (3) and a lower output shaft (4) are horizontally rotatably provided on the bracket (1), characterized in that: An upper gear (5) and an upper driven sprocket (6) are rotatably provided on the upper output shaft (3), a lower gear (7) and a lower driven sprocket (8) are sleeved and fixed on the lower output shaft (4), and the upper gear (5) and the lower gear (7) are meshed; the input sprocket (2), the upper driven sprocket (6) and the lower driven sprocket (8) are wound with a same chain (9); a clutch sleeve (10) is sleeved on the upper output shaft (3), the clutch sleeve (10) is located between the upper gear (5) and the upper driven sprocket (6), and the clutch sleeve (10) is connected to the upper output shaft (3) through a spline fit; a circle of coupling blocks (10a) are formed on both end surfaces of the clutch sleeve (10), and coupling blocks (11) matching the coupling blocks (10a) and having the same number are correspondingly formed on the end surfaces of the upper gear (5) and the upper driven sprocket (6).

2. The gearbox gear compound transmission assembly according to claim 1, characterized in that: The bracket (1) is also provided with a tensioning sprocket (13) meshing with the chain (9). The tensioning sprocket (13) is rotatably connected to the bracket (1) via a connecting structure. Under the action of the connecting structure, the tensioning sprocket (13) can adjust its height to keep the chain (9) in a tensioned state.

3. The gearbox gear compound transmission assembly according to claim 2, characterized in that: The connection structure comprises a horizontally arranged connection shaft (14), a tensioning sprocket (13) being rotatably arranged on the connection shaft (14) and the two being arranged coaxially, the connection shaft (14) being connected to the bracket (1) via a positioning structure, and under the action of the positioning structure, the connection shaft (14) can adjust its own axis height and be locked in an adjusted position.

4. The gearbox gear compound transmission assembly according to claim 3, characterized in that: The positioning structure comprises a rotating shaft (14a) formed on one end surface of the connecting shaft (14) and a positioning plate (14b) formed on the other end of the connecting shaft (14); the positioning plate (14b) and the connecting shaft (14) are eccentrically arranged; the positioning plate (14b) and the rotating shaft (14a) are coaxially arranged; the rotating shaft (14a) is rotatably arranged on the bracket (1); and the positioning plate (14b) is connected to the bracket (1) via a locking structure so that the positioning plate (14b) can be locked in a swinging position.

5. The gearbox gear compound transmission assembly according to claim 4, characterized in that: The locking structure comprises a screw (15) and a through hole (14c) axially extending through the positioning disk (14b); a threaded hole (1) is correspondingly provided on the bracket (1); a plurality of through holes (14c) are uniformly distributed along the circumference of the positioning disk (14b); a rod of the screw (15) passes through one of the through holes (14c) and is screwed into the threaded hole (1); a head of the screw (15) is tightly pressed against the positioning disk (14b).

6. The gearbox gear compound transmission assembly according to claim 4, characterized in that: The locking structure comprises a bolt and an arc groove axially extending through the positioning plate (14b); a corresponding threaded hole is provided on the bracket (1); the arc groove and the positioning plate (14b) are coaxially arranged; the bolt shank passes through the arc groove and is screwed into the threaded hole; the bolt head is tightly pressed against the positioning plate (14b).

7. The gearbox gear compound transmission assembly according to claim 4, characterized in that: The connecting shaft (14) is a cast integral part.

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