Transmission assembly

Abstract

The utility model provides a transmission assembly, relates to the field of couplings, and adopts the technical scheme that the transmission assembly comprises an output shaft and an input shaft, the end part of the output shaft is provided with a half coupling I, the end part of the input shaft is provided with a half coupling II, and the half coupling I can be combined with and separated from the half coupling II; the pull rod mechanism is connected with the half coupling I and can drive the half coupling I to move along the output shaft; the supporting plate is arranged on one side of the first half coupling, and the output shaft rotatably penetrates through the supporting plate; the reset spring is arranged between the supporting plate and the first half coupler, and the output shaft is sleeved with the reset spring. The power transmission device is convenient to operate, and transmission and disconnection of power can be conveniently controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling field especially relates to a transmission assembly. BACKGROUND

[0002] Straw is the general term of mature crop stem and leaf part, usually refers to the surplus part after harvesting seed of wheat, rice, corn, potato, rape, cotton and the like. The harvesting and crushing operation of straw can play the role of returning to field and fertilizing, and the recycled straw can be used as renewable resources. The crop usually adopts the planting mode of row sowing, and the harvesting and crushing machine can simultaneously harvest and crush multiple rows of straw.

[0003] In the prior art, the harvesting and crushing machine crushes the straw through a damper, the power of an engine is output to an output shaft through a belt transmission mechanism, the output shaft is connected with the output shaft through a chain coupling, and the output shaft is connected with the damper. However, in some operation scenarios, such as straw needs to be packed and recycled, or straw needs to be directly decomposed in the field, the straw does not need to be crushed, and at this time, the power connection between the output shaft and the input shaft needs to be interrupted. When the power connection is interrupted, the operator needs to drill into the frame and manually remove the chain on the chain coupling.

[0004] In the above-mentioned power transmission interruption mode, on the one hand, the operator needs to drill into the frame, and the operation is not convenient due to the small operation space and the many structures in the frame. On the other hand, the operator needs to use pliers and other tools to remove the pins and multiple pads at the chain joint position, and the chain removal efficiency is low. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problem of inconvenient power disconnection of the damper of the harvesting and crushing machine in the prior art, the utility model provides a transmission assembly which is convenient to operate.

[0006] The utility model adopts the technical scheme that a transmission assembly, including the frame, rotatable output shaft and input shaft are provided on the frame, the end of output shaft is provided with half coupling no. 1, the end of input shaft is provided with half coupling no. 2, half coupling no. 1 can combine with half coupling no. 2 and separate;It also includes: pull rod mechanism, the pull rod mechanism is connected with half coupling no. 1, the pull rod mechanism can drive half coupling no. 1 along the output shaft, the pull rod mechanism can be locked on the frame;Support plate, the support plate is connected with the frame, the support plate is arranged on one side of half coupling no. 1, and the output shaft is rotatable and penetrates the support plate;Reset spring, the reset spring is arranged between the support plate and half coupling no. 1, and the reset spring is sleeved outside the output shaft.

[0007] The utility model discloses a pull rod mechanism and reset spring drive half coupling one, realize the combination and disconnection of half coupling one and half coupling two, and further realize the control of power transmission, need not that operating personnel drills into the inside of the frame and operates, need not dismount chain more, convenient and fast operation.

[0008] Further, the pull rod mechanism comprises a transmission rod, a pull rod and a driving rod, the transmission rod is connected with the half coupling one, the transmission rod is arranged in parallel with the output shaft, one end of the pull rod is hinged with a mounting hole at the end of the transmission rod through a pin shaft one, the end of the transmission rod is also provided with a avoiding groove oppositely up and down, the avoiding groove is communicated with the mounting hole, the pin shaft one is horizontally arranged and perpendicular to the transmission rod, the other end of the pull rod is rotatably arranged on the driving rod through a pin shaft two, the pin shaft two is arranged in parallel with the pin shaft one, the driving rod is arranged on the rack, the driving rod can rotate in the vertical plane, and the driving rod can be locked on the rack.

[0009] The utility model discloses a transmission rod, pull rod and the cooperation of driving rod, and the axial movement of half coupling one is realized through the rotation of driving rod of operating personnel, and the convenient operation is realized.

[0010] Further, the support plate is provided with a guide sleeve, the guide sleeve is arranged in parallel with the output shaft, and the transmission rod is axially movably arranged in the guide sleeve.

[0011] The utility model discloses a guide sleeve is set up to avoid transmission rod to be driven under the pull rod and be inclined, cause half coupling one to move and be jammed, guarantee smooth movement.

[0012] Further, the pull rod comprises a rod one and a rod two, the rod one and the rod two are connected through a screw sleeve, and the threads on the rod one and the rod two are opposite in rotation direction.

[0013] The utility model discloses a pull rod is set up to be adjustable in length and can be conveniently installed.

[0014] Further, the end of the driving rod is detachably provided with a locking pin, and the locking pin can be inserted into a lock hole on the rack.

[0015] Further, the connecting end of the half coupling one and the connecting end of the half coupling two are both provided with a clamping groove and a clamping block at intervals, the clamping block of the half coupling one can be inserted into the clamping groove of the half coupling two, and the clamping block of the half coupling two can be inserted into the clamping groove of the half coupling one.

[0016] Further, the clamping block is provided with a guide inclined surface on one side.

[0017] The utility model discloses a guide inclined plane is provided with, can make half coupling one and half coupling two can be connected with each other smoothly, avoids hard collision, cannot realize combination.

[0018] Further, the support plate is provided with a bearing seat on one side, and the output shaft penetrates through the bearing seat.

[0019] From the above technical scheme, the utility model has the following advantages:

[0020] The utility model provides a transmission assembly, through adopting pull rod mechanism and return spring to drive half coupling one, realizes the combination and disconnection of half coupling one and half coupling two, and further realizes the control of power transmission, need not operate personnel to drill into the inside of frame and operate, need not dismantle chain more, convenient and fast operation, through the cooperation of transmission rod, pull rod and drive rod, realizes the axial movement of half coupling one through the rotation of drive rod of operating personnel, convenient operation, avoids the transmission rod under the driving of pull rod and inclines through the setting of guide sleeve, causes half coupling one to move and be jammed, guarantees smooth movement, through setting guide slope one and guide slope two can make half coupling one and half coupling two can be connected with each other smoothly, avoids hard collision, cannot realize combination. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the description needed to use the drawing of simple introduction, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0022] Figure 1 For the structure of the specific embodiment of the utility model Figure 1 .

[0023] Figure 2 For the structure of the specific embodiment of the utility model Figure 2 .

[0024] Figure 3 For the structure of the specific embodiment of the utility model Figure 3 .

[0025] Figure 4 For the structure of half coupling one or half coupling two in the specific embodiment of the utility model.

[0026] Figure 5 For the assembly structure of pull rod, drive rod and transmission rod in the specific embodiment of the utility model.

[0027] In the figure, 1, input shaft; 2, rack; 3, half-coupling two; 4, half-coupling one; 5, connecting disc; 6, support plate; 7, guide sleeve; 8, transmission rod; 9, pull rod; 10, drive rod; 11, output shaft; 12, cotter pin; 13, bearing seat; 14, reset spring; 15, pin shaft one; 16, pin shaft two; 17, guide inclined surface; 18, clamping groove; 20, rod one; 21, threaded sleeve; 22, rod two; 23, locking pin; 24, clamping block; 25, pin shaft three; 26, avoiding groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the following described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the scope of protection of the patent.

[0029] As shown in Figures 1 to 3 , the specific embodiment provides a transmission assembly, which comprises a rack 2, an input shaft 1, an output shaft 11, a half-coupling one 4, a half-coupling two 3, a support plate 6, a reset spring 14 and a pull rod mechanism, the output shaft 11 and the input shaft 1 are rotatably arranged on the rack 2, a plurality of bearing seats 13 are arranged on the rack 2, the output shaft 11 and the input shaft 1 penetrate through the corresponding bearing seats 13 and are arranged horizontally, the end of the output shaft 11 is provided with the half-coupling one 4 through spline, the half-coupling one 4 can move axially on the output shaft 11 through spline, the end of the input shaft 1 is provided with the half-coupling two 3 through spline, the half-coupling one 4 can be combined with and separated from the half-coupling two 3, the pull rod mechanism is connected with the half-coupling one 4, the pull rod mechanism can drive the half-coupling one 4 to move along the output shaft 11, the pull rod mechanism can be locked on the rack 2, when the pull rod mechanism is locked, the half-coupling one 4 is separated from the half-coupling two 3, the support plate 6 is welded and connected with the rack 2, the support plate 6 is arranged on one side of the half-coupling one 4, the output shaft 11 rotatably penetrates through the support plate 6, specifically, a bearing seat 13 is arranged on one side of the support plate 6, the output shaft 11 penetrates through the bearing seat 13, the reset spring 14 is arranged between the support plate 6 and the half-coupling one 4, the reset spring 14 is sleeved outside the output shaft 11, when the reset spring 14 is elongated, the half-coupling one 4 can be combined with the half-coupling two 3 to realize power transmission, through the pull rod mechanism, the half-coupling one 4 can be separated from the half-coupling two 3 to realize power interruption.

[0030] As shown in Figure 1 ,Figure 2 、 Figure 3 and Figure 5 As shown in the specific embodiment, the pull rod mechanism can adopt the following structure: the pull rod mechanism comprises a transmission rod 8, a pull rod 9 and a driving rod 10, the transmission rod 8 is welded with the connecting disc 5 of the half-coupling 1, the transmission rod 8 is arranged in parallel with the output shaft 11, the end of the transmission rod 8 is axially provided with a mounting hole, one end of the pull rod 9 is hingedly connected with the mounting hole through a pin shaft 1, in order to avoid interference, the end of the transmission rod 8 is also oppositely provided with an avoiding groove 26, the avoiding groove 26 is communicated with the mounting hole, the pin shaft 1 is horizontally arranged and perpendicular to the transmission rod 8, in the specific embodiment, the end of the pull rod 9 connected with the transmission shaft is a flat structure, the other end of the pull rod 9 is rotatably arranged on the driving rod 10 through a pin shaft 2, the pin shaft 2 is arranged in parallel with the pin shaft 1, the driving rod 10 is arranged on the rack 2 through a pin shaft 3, the driving rod 10 can rotate in the vertical plane, the driving rod 10 can be locked on the rack 2, specifically, the end of the driving rod 10 is provided with a pin hole, a locking pin 23 is arranged in the pin hole, one end of the locking pin 23 is vertically provided with a split pin 12, the other end of the locking pin 23 is provided with a limiting disc, the locking pin 23 can be inserted into the locking hole of the rack 2, when locked, the locking pin 23 is inserted into the pin hole from the locking hole, the split pin 12 is inserted to realize the locking of the driving rod 10, avoiding the reset of the half-coupling 1 under the action of the reset spring 14; in the specific embodiment, the distance between the pin shaft 3 and the pin shaft 2 is 2cm~2.5cm, which can avoid the end of the pull rod 9 connected with the transmission shaft having a large movement range in the vertical direction, thereby avoiding the interference between the pull rod 9 and the hole wall of the mounting hole, and ensuring that the transmission shaft is stressed well; further, the lower part of the supporting plate 6 is welded with a guide sleeve 7, the guide sleeve 7 is arranged in parallel with the output shaft 11, the transmission rod 8 is axially movably arranged in the guide sleeve 7, by arranging the guide sleeve 7, the transmission rod 8 is avoided from being inclined under the driving of the pull rod 9, causing the half-coupling 1 to be moved and stuck, and ensuring smooth movement.

[0031] As Figure 1 、 Figure 2 and Figure 4As shown, in this specific embodiment, half-coupling 4 and half-coupling 3 are engaged by an interlocking manner. Specifically, both the connecting end of half-coupling 4 and the connecting end of half-coupling 3 are provided with slots 18 and blocks 24 at intervals. The blocks 24 of half-coupling 4 can be inserted into the slots 18 of half-coupling 3, and the blocks 24 of half-coupling 3 can be inserted into the slots 18 of half-coupling 4. In this specific embodiment, each connecting end is provided with three blocks 24 and three slots 18. To ensure that the blocks 24 can smoothly enter the slots 18 and avoid collision interference, a guide slope 17 is provided on one side of the blocks 24. The guide slope 17 of half-coupling 4 and half-coupling 3 can generate sliding friction.

[0032] like Figure 5 As shown, to facilitate the installation of the pull rod 9, in this specific embodiment, the pull rod 9 includes a first rod 20 and a second rod 22. The first rod 20 and the second rod 22 are connected by a threaded sleeve 21. The threads on the first rod 20 and the second rod 22 have opposite directions. Correspondingly, the threads at both ends of the threaded sleeve 21 also have opposite directions. When the threaded sleeve 21 is rotated, the first rod 20 and the second rod 22 at both ends can be pulled to move towards or away from each other, thereby adjusting the length of the pull rod 9. During installation, first connect one end of the second rod 22 to the drive rod 10 through a second pin 16, rotate the threaded sleeve 21 until the first rod 20 can be aligned with the pin hole on the mounting hole and insert the first pin 15.

[0033] The working process of this transmission assembly is as follows:

[0034] When it is necessary to disconnect the power transmission of the damper, the drive rod 10 is rotated, the pull rod 9 is pulled, and the half coupling 4 and the second half coupling 3 are separated. At this time, the return spring 14 is compressed, and the drive rod 10 is locked after the locking pin 23 is installed. When it is necessary to transmit power, the locking pin 23 is removed, the drive rod 10 is rotated in the opposite direction, the return spring 14 is extended, and under the action of the return spring 14, the half coupling 4 moves closer to the second half coupling 3. Under the guidance of the first guide slope 17 and the second guide slope 17, the locking block 24 is inserted into the slot 18 to achieve engagement. In this specific embodiment, the end faces of the half coupling 4 and the second half coupling 3 are provided with slots 18 and locking blocks 24 at intervals.

[0035] As can be seen from the above specific embodiments, this utility model has the following beneficial effects:

[0036] 1. By using a pull rod mechanism and a return spring 14 to drive the half coupling 4, the engagement and disengagement of the half coupling 4 and the second half coupling 3 are realized, thereby realizing the control of power transmission. There is no need for operators to crawl into the frame to operate, and there is no need to disassemble the chain, making the operation convenient and quick.

[0037] 2. By the cooperation of the transmission rod 8, the pull rod 9 and the driving rod 10, the axial movement of the half-coupling 4 is realized by the rotation of the driving rod 10 by the operator, and the operation is convenient;

[0038] 3. By setting the guide sleeve 7, the transmission rod 8 is prevented from tilting under the driving of the pull rod 9, causing the half-coupling 4 to move and jam, and ensuring smooth movement; by setting the guide slope 17-1 and the guide slope 17-2, the half-coupling 4 and the half-coupling 3 can be smoothly clamped, avoiding hard collision and realizing combination.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transmission assembly comprising a frame (2), wherein an output shaft (11) and an input shaft (1) are rotatably disposed on the frame (2), wherein a first half-coupling (4) is disposed at the end of the output shaft (11), and a second half-coupling (3) is disposed at the end of the input shaft (1), characterized in that, The first half-coupling (4) can be engaged and disengaged from the second half-coupling (3); Also includes: A tie rod mechanism is connected to the first half coupling (4). The tie rod mechanism can drive the first half coupling (4) to move along the output shaft (11). The tie rod mechanism can be locked on the frame (2). Support plate (6), the support plate (6) is connected to the frame (2), the support plate (6) is disposed on one side of the half coupling (4), and the output shaft (11) rotatably passes through the support plate (6). A reset spring (14) is disposed between the support plate (6) and the half coupling (4), and the reset spring (14) is sleeved on the outside of the output shaft (11).

2. The transmission assembly as described in claim 1, characterized in that, The pull rod mechanism includes a transmission rod (8), a pull rod (9), and a drive rod (10). The transmission rod (8) is connected to the first half coupling (4). The transmission rod (8) is parallel to the output shaft (11). One end of the pull rod (9) is hinged to the mounting hole at the end of the transmission rod (8) by a pin (15). The pin (15) is horizontally arranged and perpendicular to the transmission rod (8). The end of the transmission rod (8) is also provided with a clearance groove (26) on both sides. The clearance groove (26) is connected to the mounting hole. The other end of the pull rod (9) is rotatably mounted on the drive rod (10) by a second pin (16). The second pin (16) is parallel to the first pin (15). The drive rod (10) is mounted on the frame (2). The drive rod (10) can rotate in the vertical plane and can be locked on the frame (2).

3. The transmission assembly as described in claim 2, characterized in that, A guide sleeve (7) is provided on the support plate (6). The guide sleeve (7) is arranged parallel to the output shaft (11). The transmission rod (8) is axially movable and arranged inside the guide sleeve (7).

4. The transmission assembly as described in claim 3, characterized in that, The pull rod (9) includes a first rod (20) and a second rod (22), which are connected by a threaded sleeve (21). The threads on the first rod (20) and the second rod (22) have opposite directions.

5. The transmission assembly as described in claim 4, characterized in that, The end of the drive rod (10) is detachably provided with a locking pin (23), which can extend into a lock hole on the frame (2).

6. The transmission assembly as described in any one of claims 1-5, characterized in that, Both the connecting end of the first half-coupling (4) and the connecting end of the second half-coupling (3) are provided with slots (18) and blocks (24) at intervals. The blocks (24) of the first half-coupling (4) can be inserted into the slots (18) of the second half-coupling (3), and the blocks (24) of the second half-coupling (3) can be inserted into the slots (18) of the first half-coupling (4).

7. The transmission assembly as described in claim 6, characterized in that, A guide slope (17) is provided on one side of the card block (24).

8. The transmission assembly as claimed in claim 1, characterized in that, A bearing seat (13) is provided on one side of the support plate (6), and the output shaft (11) passes through the bearing seat (13).

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