CN211951343U - A multifunctional transmission - Google Patents

Abstract

The utility model discloses a multi-function transmission, comprising a box body, an input shaft, an output shaft I, an output shaft II, an output sleeve and an adapter control mechanism; the input shaft is fixedly matched with a fast-speed driving gear and a slow-speed driving gear ; The output shaft I has a fast-speed driven gear and a slow-speed driven gear meshed with the fast-speed driving gear and the slow-speed driving gear respectively; the fast-speed driven gear and the slow-speed driven gear A synchronizer is arranged between; the output shaft II is fixedly fitted with an intermediate gear that meshes with the slow gear driving gear, and an adapter that can slide back and forth in the axial direction through a spline; the adapter can be in the adapter Driven by the operating mechanism, it slides along the axial direction to engage or disengage with the output sleeve; the transmission has two power output shafts, one of which can provide driving power for auxiliary devices such as hydraulic pumps and water pumps on small freight vehicles.

Description

A multifunctional transmission

technical field

The utility model relates to the field of transmission parts, in particular to a multifunctional transmission.

Background technique

The transmission is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided gear, also known as a gearbox. The transmission consists of a speed change transmission mechanism and a control mechanism. In the prior art, the transmission usually has only one power take-off shaft, and the power take-off shaft outputs power to the vehicle drive axle through the transmission shaft to drive the vehicle to travel. In the existing small freight vehicles, the cargo box usually needs a hydraulic device to lift the cargo box to realize tipping. In the prior art, the hydraulic pump usually needs a high-power motor to provide the power required for work, which will undoubtedly shorten the service life of the battery.

Utility model content

Therefore, the purpose of the present invention is to provide a multi-function transmission, which has two power take-off shafts, one of which can provide driving power for auxiliary devices such as hydraulic pumps and water pumps on small freight vehicles.

The multifunctional transmission of the utility model comprises a box body, an input shaft, an output shaft I, an output shaft II, an output sleeve and an adapter control mechanism; the input shaft is fixedly matched with a fast-speed driving gear and a slow-speed driving gear; the The output shaft I has a fast-speed driven gear and a slow-speed driven gear meshed with the fast-speed driving gear and the slow-speed driving gear respectively; the fast-speed driven gear and the slow-speed driven gear are arranged between the There is a synchronizer; the output shaft II is fixedly fitted with an intermediate gear that meshes with the slow-speed driving gear, and an adapter that can slide back and forth in the axial direction is fitted with a spline; the output sleeve is fixedly provided with an inner gear ring and It is coaxially arranged with the output shaft II; the adapter is provided with engaging teeth that can be engaged with the inner gear ring, and the adapter can slide along the axial direction to engage or separate from the output sleeve under the driving of the adapter operating mechanism;

Further, the adapter operating mechanism includes a wobble plate and a spring pin; the wobble plate is rotatably connected to the box body, and the outside of the box is provided with a joystick fixed coaxially with the wobble plate; the outer circle of the wobble plate is formed with a There are two pin grooves for matching with the spring pins, and the wobble plate extends radially to form a snap-fit portion for snap-fit with the ring groove of the adapter.

Further, the spring pin includes a pin body, a plug screw and a spring I located between the pin body and the plug screw; the pin body is slidably fitted in a pin hole located in the box, and the plug screw is screwed to The outer end of the pin hole; the pin body is a cylindrical structure with a closed upper end, and the upper end is formed with a protrusion for matching with the pin groove of the wobble plate.

Further, the synchronizer is driven by a shift control mechanism to realize the shift action; the shift control mechanism includes a shift fork shaft, a shift fork, a shift motor and a lock assembly; the shift fork shaft is rotatably supported on the a gearbox case; the output shaft of the gear shift motor is drive-connected to the shift fork shaft, and the shift fork shaft includes a sleeve body and a shift fork body fixed on the sleeve body; the sleeve body is provided with threads The shifting fork shaft is provided with an external thread matched with the threaded hole; the locking block assembly includes three ring grooves formed on the outer circumference of the shifting fork shaft, located in the side wall of the sleeve body and A locking ball that can be ejected and inserted into the ring groove.

Further, the shift fork shaft includes a guide section, an external thread section and a lock block section located between the guide section and the external thread section; the annular groove is opened in the lock block section, and the outer diameter of the lock block section is The diameter is smaller than the outer diameter of the guide section and the outer thread section; the central hole of the sleeve body includes an inner thread section matched with the outer thread section and a light hole section with the same diameter as the guide shaft of the fork shaft.

Further, the locking block assembly also includes a mounting hole radially opened on the inner side wall of the sleeve, an adjusting screw connected in the mounting hole by a thread, and a compression screw located between the adjusting screw and the locking block steel ball a spring; a magnetic element is fixedly installed on the outer wall of the sleeve; the inner wall of the transmission case is provided with three magnetic proximity switches for detecting the position of the magnetic element.

The beneficial effects of the present utility model: the transmission of the present utility model, when the transmission is required to supply energy for equipment such as water pumps, hydraulic pumps, etc., the adapter operating mechanism can be used to push the adapter to slide until its engaging teeth mesh with the inner ring gear of the output sleeve, At this time, the vehicle engine is started, and the power is input to the transmission through the input shaft, intermediate gear, and output shaft II in turn, and then input to the output sleeve. The output sleeve has internal splines, and the spline shaft can be used to input the power to the equipment that needs to be driven. When there is no need to output extra power, use the adapter operating mechanism to push the adapter to separate from the output sleeve, and the power of the output shaft II will not be output to the output sleeve at this time.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural schematic diagram of the shift operating mechanism of the present utility model;

FIG. 3 is an enlarged view of A in FIG. 1 .

Detailed ways

Example 1:

The multi-function transmission of the present invention includes a casing, an input shaft 21, an output shaft I23, an output shaft II34, an output sleeve 30 and a control mechanism of the adapter 32; as shown in FIG. 1, the input shaft 21 is fixedly fitted with a quick gear The driving gear and the slow driving gear; the output shaft I23 is empty sleeved with a fast driven gear and a slow driven gear (forming a fast gear pair 22 corresponding to the meshing of the fast driving gear and the slow driving gear respectively). and the slow gear pair 25); a synchronizer 24 is provided between the fast gear driven gear and the slow gear driven gear, and the synchronizer 24 adopts the existing structure, and the fast gear driven can be controlled by driving it to slide along the axial direction The gear or the slow-speed driven gear is engaged with the output shaft I23 to realize shifting; the output shaft I23 can output the power to the vehicle drive axle to realize the vehicle traveling;

The output shaft II 34 is fixedly fitted with an intermediate gear 33 that meshes with the slow-speed driving gear, and is fitted with an adapter 32 that can slide back and forth in the axial direction through a spline; the output sleeve 30 is fixedly provided with an inner gear 31 and It is arranged coaxially with the output shaft II34; the adapter 32 is provided with engaging teeth that can engage with the inner gear 31, and the adapter 32 can slide axially with the output sleeve driven by the operating mechanism of the adapter 32. 30 Engagement or disengagement; when the transmission is required to supply energy for water pumps, hydraulic pumps and other equipment, the coupling 32 can be used to push the coupling 32 to slide until its engagement teeth engage with the inner ring gear 31 of the output sleeve 30. At this time, start The vehicle engine, after the power is input to the transmission, is sequentially input to the output sleeve 30 through the input shaft 21, the intermediate gear 33, and the output shaft II 34. The output sleeve 30 has internal splines, and the spline shaft can be used to input the power to the equipment that needs to be driven. When there is no need to output additional power, the coupling 32 is pushed apart from the output sleeve 30 by the control mechanism of the coupling 32 , and the power of the output shaft II 34 will not be output to the output sleeve 30 at this time.

In this embodiment, the control mechanism of the adapter 32 includes a swing plate 26 and a spring pin; the swing plate 26 is rotatably connected to the box, and a control rod fixed coaxially with the swing plate 26 is arranged outside the box; The user can swing the wobble plate 26 by manually driving the joystick. The outer circle of the wobble plate 26 is formed with two pin grooves 27 for matching with the spring pins. The snap-fit portion of the ring groove snap-fit, the spring pin includes a pin body 28, a plug screw and a spring I29 located between the pin body 28 and the plug screw; the pin body 28 is slidably fitted with In the pin hole, the plug screw is screwed on the outer end of the pin hole; the pin body 28 is a cylindrical structure with a closed upper end, and the upper end is formed with a protrusion for matching with the pin groove 27 of the wobble plate 26. After entering the pin groove 27, the swing of the wobble plate 26 can be locked; the two pin grooves 27 correspond to the engagement and separation of the adapter 32 and the output sleeve 30 respectively. When the wobble plate 26 is rotated, the pin body 28 will be withdrawn from the pin groove 27 .

Embodiment 2:

In the first embodiment, the shift control mechanism can use the manual transmission shift mechanism in the prior art. In the second embodiment, the main structure of the transmission is the same as that of the first embodiment, and it adopts the shift control mechanism of the following structure; The gear control mechanism includes a shift fork shaft 1, a shift fork 2, a shift motor 3 and a lock block assembly; the shift fork shaft 1 is rotatably supported on the gearbox case, and the transmission case is machined with support holes for rotatable. The shifting fork shaft 1 is supported, and sliding bearings can be arranged at the support holes to reduce the resistance of the shifting fork shaft 1 when it rotates; the shifting motor 3 can be a stepping motor, and its output shaft is connected to the shifting fork shaft through a coupling transmission. 1; one end of the locking shaft protrudes out of the transmission case through the support hole in the side wall of the transmission case and is connected to the output shaft of the shifting motor 3 in a driving connection; the support hole is provided with a sealing ring; through the sealing ring To prevent impurities from entering the transmission case, the shift fork shaft 1 includes a sleeve body 13 and a shift fork body 8 fixed on the sleeve body 13. The shift fork body 8 is externally clamped to the synchronizer 4, and its structure adopts the existing shift The fork body structure of the fork; the lock block assembly includes three ring grooves 10 formed on the outer circumference of the fork shaft 1, located in the side wall of the sleeve body 13 and can be ejected and embedded in the ring groove 10 The locking ball; the locking assembly also includes a mounting hole radially opened on the inner side wall of the sleeve body 13, an adjusting screw 15 connected to the mounting hole by a thread, and the adjusting screw 15 and the locking block The compression spring 14 between the steel balls 12; the compression amount of the spring 14 can be adjusted by rotating the adjusting screw 15 to adjust the locking force; the fork shaft 1 includes a guide section 11, an external thread section 7 and a guide section 11. The locking section between the outer thread section 7; the ring groove 10 is opened in the locking section, and the outer diameter of the locking section is smaller than the outer diameter of the guide section 11 and the outer thread section 7, and the outer thread section The outer diameter of the thread 7 is the same as the outer diameter of the guide segment 11 (optical shaft segment); the central hole of the sleeve body 13 includes the inner thread segment 6 matched with the outer thread segment 7 and the fork shaft 1 For the smooth hole segment 9 with the same diameter of the guide shaft, the thread length of the internal thread segment 6 should be greater than the axial stroke of the shift fork from left to right; when shifting is required, the shift motor 3 drives the shift fork shaft 1 to rotate, and the shift fork A screw nut mechanism is formed between the shaft 1 and the sleeve body 13, and the rotation of the shift fork shaft 1 is converted into the axial movement of the shift fork, thereby driving the synchronizer 4 to move axially to realize shifting; the shifting mechanism is in the shifting process. , the shift fork shaft 1 will not move in the axial direction, thereby reducing the axial arrangement space of the shifting mechanism; in addition, after the shift fork moves in place, the locking steel ball 12 will be embedded in the ring groove 10, which further improves the The stability of the shifting fork after it is in gear is improved, and the shifting fork is prevented from moving in the axial direction relative to the shifting fork shaft 1 during the vibration process; Greatly improve the compactness of the whole mechanism;

In this embodiment, a magnetic element 5 is fixedly installed on the outer wall of the sleeve body 13 ; the inner wall of the transmission case is provided with three magnetic proximity switches 16 for detecting the position of the magnetic element 5 ; three proximity switches 16 Corresponding to the left position, middle position and right position of the shift fork respectively, the shift motor 3 adopts a servo motor. When the shift fork moves to the left position, the middle position or the right position, the proximity switch 16 senses the magnetic element 5 to control the servo motor stop, thereby improving the accuracy of the fork movement position.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (6)

1. A multi-function transmission characterized by: the clutch comprises a box body, an input shaft, an output shaft I, an output shaft II, an output sleeve and a connector control mechanism; the input shaft is fixedly matched with a fast gear driving gear and a slow gear driving gear; the output shaft I is sleeved with a fast-gear driven gear and a slow-gear driven gear which are respectively meshed with the fast-gear driving gear and the slow-gear driving gear in a clearance mode; a synchronizer is arranged between the fast-gear driven gear and the slow-gear driven gear; the output shaft II is fixedly matched with an intermediate gear meshed with the slow gear driving gear and a connector which can slide in an axial reciprocating manner through spline matching; the output sleeve is fixedly provided with an inner gear ring and is coaxially arranged with the output shaft II; the adapter is provided with an engaging tooth which can be engaged with the inner gear ring, and the adapter can be axially and slidably engaged with or disengaged from the output sleeve under the driving of the adapter operating mechanism.

2. The multi-function transmission of claim 1, wherein: the adapter operating mechanism comprises a wobble plate and a spring pin; the swinging plate is rotatably connected in the box body, and an operating lever coaxially fixed with the swinging plate is arranged outside the box body; the excircle of balance staff is formed with two and is used for with spring catch complex cotter way, balance staff along radially extending form with the joint portion of the annular joint of adapter.

3. The multi-function transmission of claim 2, wherein: the spring pin comprises a pin body, a plug screw and a spring I positioned between the pin body and the plug screw; the pin body is in sliding fit with the pin hole in the box body, and the plug screw is in threaded connection with the outer end of the pin hole; the pin body is of a cylinder structure with a closed upper end, and a bulge matched with the pin groove of the wobble plate is formed at the upper end of the pin body.

4. The multi-function transmission of claim 3, wherein: the synchronizer is driven by a gear shifting control mechanism to realize gear shifting action; the gear shifting control mechanism comprises a shifting fork shaft, a gear shifting fork, a gear shifting motor and a gear locking assembly; the shifting fork shaft is rotatably supported on the gearbox body; an output shaft of the gear shifting motor is connected with the shifting fork shaft in a transmission manner, and the shifting fork shaft comprises a sleeve body and a shifting fork body fixed on the sleeve body; the sleeve body is provided with a threaded hole, and the shifting fork shaft is provided with an external thread matched with the threaded hole; the lock catch component comprises three annular grooves formed in the excircle of the shifting fork shaft and a lock catch ball which is positioned in the side wall of the sleeve body and can be popped out and embedded into the annular grooves.

5. The multi-function transmission of claim 4, wherein: the shifting fork shaft comprises a guide section, an external thread section and a locking section positioned between the guide section and the external thread section; the ring groove is arranged on the locking and blocking section, and the outer diameter of the locking and blocking section is smaller than the outer diameters of the guide section and the external thread section; the central hole of the sleeve body comprises an internal thread section matched with the external thread section and a smooth hole section with the same diameter as the guide shaft of the shifting fork shaft.

6. The multi-function transmission of claim 5, wherein: the lock catch component also comprises a mounting hole arranged on the inner side wall of the sleeve body along the radial direction, an adjusting screw connected in the mounting hole through threads and a compression spring positioned between the adjusting screw and the lock catch steel ball; a magnetic element is fixedly arranged on the outer wall of the sleeve body; and three magnetic proximity switches for detecting the positions of the magnetic elements are arranged on the inner wall of the transmission box body.

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