CN107255161B - Damping extensible blind spiral groove torsion buffer transmission device - Google Patents

Abstract

A vibration damping and expandable blind helical groove torsion buffer transmission device, a first helical disk structure and a second helical disk structure are installed in an inner hole, and an output bracket is arranged in the first helical disk structure and the second helical disk structure. In between, the shaft passes through the first and second spiral disc structures and the installation hole in the middle of the output bracket, the side plates on both sides of the output bracket are each sleeved with a sliding bracket, the guiding force transmission pin passes through the sliding bracket, and the guide Both ends of the force transmission pin are respectively in the spiral grooves corresponding to the first spiral plate structure and the second spiral plate structure, and the installation holes in the middle of the first spiral plate structure and the second spiral plate structure are installed with The clockwork spring structure, the internal installation shaft of the clockwork spring passes through the clockwork spring structure of the corresponding spiral disc. The invention can effectively reduce vibration, shift impact and abnormal shift noise, and the installation structure of the inner ring of the spring spring adopts a wave shape, which is suitable for various transmissions for automobiles, electric vehicles, ships and aircrafts, and various industrial and mining variable-speed mechanical transmissions .

Description

A vibration-absorbing and expandable blind helical groove torsion buffer transmission device

technical field

The invention relates to the field of mechanical transmission, and is used in occasions where impact reduction is required in the transmission shifting process, and is especially suitable for the gear transmission of the stepped transmission of the internal combustion engine vehicle, the new energy vehicle, the ship and the aircraft, the buffer transmission of the clutch output shaft, the double clutch automatic transmission Buffer transmission of transmission, output shaft or second-speed transmission of hydraulic torque converter of hydromechanical automatic transmission, input shaft or second-speed gear transmission of electronically controlled automatic transmission, starting buffer of vehicle continuously variable transmission, industrial and mining machinery, The variable-speed mechanical transmission of agricultural machinery, ships and aircraft is also applicable to the above-mentioned mechanical transmission control mechanism, and specifically relates to a vibration-absorbing and expandable blind helical groove torsion buffer transmission device.

Background technique

In order to reduce fuel consumption, high-speed electric vehicles are equipped with stepped transmissions. Due to the large rotational inertia of the rotor of the motor and the fact that it is not separated from the rotor of the motor when shifting gears, there are shocks and abnormal shifting noises when shifting gears; In the second gear, the occupants often feel a sense of frustration, especially when riding a city bus. This is due to the impact caused by the large change in the transmission ratio of the first and second gears. The gears equipped with manual transmission and torque converter The shock absorber and torque converter of the vehicle can not alleviate the impact very well. In addition to causing discomfort to the occupants, it also causes a short-term high torque value in the powertrain. All control elements will impact, which will increase the wear and tear of the elements, and even break the teeth or drive shafts; vehicles equipped with a continuously variable transmission for vehicles need special mechanisms when starting, such as torque converters, planetary gear combination friction clutches, etc. Mechanism, to realize the working condition of the vehicle from stationary to the maximum transmission ratio, the starting assist mechanism is complex, if the structure can be simplified, it will have a very good prospect to achieve a smooth start; equipped with a dual-clutch automatic transmission (abbreviated as DTC or DSG) When shifting gears, the clutch generates a lot of frictional heat. Equipping this device on one or both of the shafts can effectively reduce the frictional heat generation; in order to improve efficiency, electric vehicles are generally equipped with 2-3 speed mechanical transmissions. , the impact is large when shifting gears, and equipping this system can effectively reduce the impact; considering this impact in the design, it is necessary to increase the safety factor, so that the size of the gear and transmission shaft is increased or special thermal processing technology is required, resulting in components Increased weight and increased cost. Clockwork spring, also known as (coiled) spring, is a spring in which the spring coil is in a plane. The spring is a kind of spring in which the material is wound into a plane helical shape. Elastic deformation, the applicant considers using it for the dynamic characteristics of the torsional buffer transmission device, using two mainspring and auxiliary springs with different properties to improve its vibration performance and make the transmission smooth; although the current springs It can provide a large torque, but if a single spring provides a large torque, it will be difficult to manufacture and install, and the torque of 300N∙m is commonly used in automobiles. It is difficult for a spring to provide such a large torque, and The two mainsprings are installed on one side, and the force of the transmission pin is large, which puts forward higher requirements for its support, so the structure of two blind spiral grooves is adopted, so that the system can meet the occasion of larger transmission torque .

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a vibration damping and expandable blind spiral groove torsion buffer transmission device, which has two springs on one side, which can effectively reduce vibration, and has blind spiral groove disks on both sides. , the mainspring springs can be installed in pairs to expand the transmission torque value. In addition, the installation structure of the inner ring of the mainspring spring adopts a wave shape and works under high-speed working conditions. To achieve this purpose, the present invention provides a vibration-damping and expandable blind screw A wire groove torsional buffer transmission device includes a mainspring spring structure, a force transmission mechanism, a shaft, a transmission structure, an inner installation shaft of the mainspring spring, a secondary mainspring spring and a pressure plate. The middle of the transmission structure has an inner hole, and the inner hole There is an inner hole step surface inside, the inner hole is installed with a first spiral plate structure and a second spiral plate structure, and the first spiral plate structure and the second spiral plate structure are respectively installed on the inner hole step surface On both sides, the first spiral plate structure and the second spiral plate structure have spiral grooves on one side of the spiral plate. The force transmission mechanism includes a sliding bracket, an output bracket and a guide force transmission pin. The output bracket In the first and second spiral disk structures, the shaft passes through the first and second spiral disk structures and the installation holes in the middle of the output bracket, and the side plates on both sides of the output bracket are A sliding bracket is sleeved, the side plates on both sides of the output bracket are provided with strip-shaped grooves, the guiding force transmission pin passes through the sliding bracket, and the middle part of the guiding force transmission pin is in the strip-shaped groove on the side plate of the output bracket , the two ends of the guiding force transmission pin are respectively in the spiral grooves corresponding to the first spiral plate structure and the second spiral plate structure, and the installation holes in the middle of the first spiral plate structure and the second spiral plate structure A mainspring structure is installed inside, and the end of the outer ring of the mainspring structure is fixed by the installation groove corresponding to the spiral disc. Corresponding to a clockwork spring structure, the internal mounting shaft of the clockwork spring is mounted on the outer circle of the shaft, and the internal mounting shaft of the clockwork spring passes through the clockwork spring structure of the corresponding coil disk.

In a further improvement of the present invention, the clockwork spring structure is composed of 1-10 clockwork springs, and the present invention can install corresponding clockwork springs as required.

In a further improvement of the present invention, the two mainspring structures are composed of a set of mainsprings as a whole, the mainspring and the auxiliary springs, or the two mainsprings and the auxiliary springs, which can effectively reduce vibration, In order to achieve better dynamic performance when shifting gears, the mainspring spring and the auxiliary spring are used in the mainspring structure, which is one of the common combinations of the present invention.

In a further improvement of the present invention, the fixed installation of the mainspring spring and the mainspring of the secondary spring on the same side differ by 180°, so that the design is convenient to obtain dynamic balance.

In a further improvement of the present invention, the transmission structure is a transmission gear, and the transmission structure commonly used in the present invention is a transmission gear.

In a further improvement of the present invention, the coaxial inner mounting shaft of the spring is connected by a bearing, the bearing is between the first coil structure and the second coil structure, and the inner mounting shaft of the spring is generally fixed by the bearing .

In a further improvement of the present invention, the inner end of the mainspring spring of the mainspring structure has a wavy line structure at the inner end of the mainspring spring, and the wavy line structure at the inner end of the mainspring spring has a wave-shaped groove, and the inner end of the mainspring spring has a wave-shaped groove. The installation shaft is in the wave-shaped groove, the end of the wave-line structure at the inner end of the mainspring spring is fixed with a pressure plate by screws, and the installation structure of the inner ring of the mainspring spring adopts a wave shape, which is conducive to working under high-speed conditions, and has an arc transition structure , so that the force condition of the inner end of the spring is improved.

In a further improvement of the present invention, the first spiral plate structure and the second spiral plate structure are integrally connected with the stepped surface of the inner hole, and the present invention can combine the first spiral plate structure and the second spiral plate structure with the inner hole. The step surface is designed to be used as a whole.

In a further improvement of the present invention, the first spiral plate structure and the second spiral plate structure are respectively formed by 1-6 spiral plate structures, and the first spiral plate structure and the second spiral plate structure are composed of at least The structure is composed of two helical disks, and there is a force transmission mechanism between the adjacent helical disks in the spiral disk structure. The torque is transmitted through the force transmission mechanism.

The invention provides a vibration-absorbing and expandable blind helical groove torsion buffer transmission device. The application has two helical discs, and more than two springs can be installed, so as to solve the problem that the mainspring can provide large torque. Its single size is small, and its protruding single side has two main springs and auxiliary springs, which can reduce resonance and achieve the purpose of stable system operation. The installation position of the inner ring is 180° different from that of the inner ring, which is convenient to obtain dynamic balance, and a specific fixing method of the inner ring of the mainspring spring is adopted to facilitate installation and overcome centrifugal force. The bends match, and the transitions are smooth.

Description of drawings

Fig. 1 is the overall structure installation schematic diagram of the present invention;

Fig. 2 is the overall partial structure schematic diagram of the present invention;

3 is a sectional view of the installation of the clockwork spring of the present invention;

4 is a schematic diagram 1 of the installation positions of the outer ring and the inner ring of the clockwork spring of the present invention;

Fig. 5 is the schematic diagram two of the installation positions of the outer ring and the inner ring of the clockwork spring of the present invention;

6 is a schematic diagram of the installation of the multi-spiral disk structure of the present invention;

Description:

1. The first spiral disk structure; 2. Sliding bracket; 3. Output bracket; 4. Guide force transmission pin; 5. Shaft; 6. Transmission gear; 7. Inner hole step surface; 8. Inner hole; Two spiral disc structure; 10. Mainspring spring; 11. Inner spring installation shaft; 12. Secondary spring; 13. Pressure plate; 14. Wave groove;

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

The invention provides a vibration damping and expandable blind spiral groove torsion buffer transmission device, which has two spring springs on one side, which can effectively reduce vibration, and has blind spiral groove discs on both sides, which can install springs in pairs The spring is used to expand the transmission torque value. In addition, the inner ring installation structure of the spring spring adopts a wave shape, which can work under high-speed conditions.

As an embodiment of the present invention, the present invention provides a vibration-damping and expandable blind helical groove torsion buffer transmission device, which includes a clockwork spring structure, a force transmission mechanism, a shaft 5, a transmission structure, a clockwork spring inner installation shaft 11, Auxiliary spring 12 and pressure plate 13, there is an inner hole 8 in the middle of the transmission structure, the inner hole 8 has an inner hole step surface 7, and the inner hole 8 is installed with the first coil structure 1 and the first coil structure. Two spiral disc structures 9, the first spiral disc structure 1 and the second spiral disc structure 9 are respectively installed on both sides of the inner hole step surface 7, the first spiral disc structure 1 and the second spiral disc structure 9 In structure 9, there is a spiral groove on one side of the spiral disc, and the force transmission mechanism includes a sliding bracket 2, an output bracket 3 and a guiding force transmission pin 4, and the output bracket 3 is in the first spiral plate structure 1 and the second screw. The coil structure 9, the shaft 5 passes through the first coil structure 1 and the second coil structure 9 and the middle mounting hole of the output support 3, and the side plates on both sides of the output support 3 are each sleeved with a sliding support 2. The side plates on both sides of the output bracket 3 have strip grooves, the guiding force transmission pin 4 passes through the sliding bracket 2, and the middle part of the guiding force transmission pin 4 is in the strip groove of the side plate of the output bracket 3. Inside, the two ends of the guiding force transmission pin 4 are respectively in the spiral grooves corresponding to the first spiral plate structure 1 and the second spiral plate structure 9. The first spiral plate structure 1 and the second spiral plate structure A mainspring spring structure is installed in the installation hole in the middle of the structure 9. The outer ring end of the mainspring spring structure is fixed by the installation groove corresponding to the coil plate. There are two pairs of installation shafts 11 in the mainspring spring, each The inner installation shaft 11 of the mainspring spring corresponds to a mainspring structure, the inner installation shaft 11 of the mainspring spring is installed on the outer circle of the shaft 5, and the inner installation shaft 11 of the mainspring spring passes through the mainspring of the corresponding coil disc. spring structure.

As a specific embodiment of the present invention, the present invention provides a vibration damping and expandable blind helical groove torsion buffer transmission device as shown in FIG. 1 and FIG. 2 , including a spring structure, a force transmission mechanism, a shaft 5, a transmission The structure, the internal installation shaft 11 of the mainspring spring, the auxiliary mainspring spring 12 and the pressure plate 13, the middle part of the transmission structure has an inner hole 8, the transmission structure is the transmission gear 6, and the commonly used transmission structure in the present invention is the transmission gear. There is an inner hole step surface 7 in the inner hole 8, and a first spiral plate structure 1 and a second spiral plate structure 9 are installed in the inner hole 8, and the first spiral plate structure 1 and the second spiral plate are installed. The structures 9 are respectively installed on both sides of the inner hole step surface 7, the first spiral plate structure 1 and the second spiral plate structure 9 have spiral grooves on one side of the spiral plate, and the force transmission mechanism includes a sliding bracket 2 , the output bracket 3 and the guide force transmission pin 4, the output bracket 3 is in the first spiral plate structure 1 and the second spiral plate structure 9, and the shaft 5 passes through the first spiral plate structure 1 and the second spiral plate structure 1. The spool structure 9 and the installation hole in the middle of the output bracket 3, the side plates on both sides of the output bracket 3 are each sleeved with a sliding bracket 2, the side plates on both sides of the output bracket 3 have strip grooves, and the guide transmission The force pin 4 passes through the sliding bracket 2, the middle part of the guide force transmission pin 4 is in the strip-shaped groove of the side plate of the output bracket 3, and the two ends of the guide force transmission pin 4 are respectively corresponding to the first spiral disk structure 1 and 1. In the spiral groove of the second coil structure 9 , the mounting holes in the middle of the first coil structure 1 and the second coil structure 9 are installed with a clockwork spring structure. The end of the outer ring is fixed by the installation groove corresponding to the coil plate. The two mainspring spring structures are composed of two sets of mainspring 10 and secondary springs 12. The mainspring structure adopts the mainspring and the secondary spring. It is one of the common combinations of the present invention, and the mainspring structure is generally composed of 1-4 mainsprings. The present invention can install corresponding mainsprings as required, the mainspring 10 and the secondary spring 13 on the same side As shown in Figures 4 and 5, the fixed installation of the mainspring is 180º apart, which is convenient to obtain dynamic balance. There are two pairs of installation shafts 11 in the mainspring, and each pair of installation shafts 11 in the mainspring corresponds to a mainspring Spring structure, the inner installation shaft 11 of the mainspring spring is installed on the outer circle of the shaft 5, and the inner installation shaft 11 of the mainspring spring passes through the mainspring spring structure of the corresponding coil disk as shown in FIG. The inner installation shaft 11 of the spring is connected by a bearing, the bearing is between the first coil structure 1 and the second coil structure 9, the inner installation shaft of the spring is generally fixed by the bearing, the spring structure The inner end of the mainspring spring has a wavy line structure 15 at the inner end of the mainspring spring, the wavy line structure 15 at the inner end of the mainspring spring has a wave-shaped groove 14, and the inner installation shaft 11 of the mainspring spring is in the wave-shaped groove 14. , The end of the wave line structure 15 at the inner end of the clockwork spring is fixed with a pressure plate 13 by screws, and the inner ring installation structure of the clockwork spring adopts a wave shape, which is conducive to working under high-speed conditions.

The first spiral plate structure 1 and the second spiral plate structure 9 of the present invention are integrally connected with the inner hole step surface 7, and the present invention can combine the first spiral plate structure and the second spiral plate structure with the inner hole step surface The surface is designed to be used as a whole.

In the present invention, as shown in FIG. 6 , the first spiral plate structure 1 and the second spiral plate structure 9 of the present invention are respectively composed of 2-6 spiral plate structures. The first spiral plate structure 1 and the second spiral plate structure The helical disk structure 9 is formed by at least two helical disk structures, and there is a force transmission mechanism between the adjacent helical disks in the helical disk structure. Torque is transmitted between adjacent helical discs through a force transmission mechanism.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any other form, and any modifications or equivalent changes made according to the technical essence of the present invention still fall within the scope of protection of the present invention. .

Claims (1)

1. The utility model provides an expanded blind spiral groove of damping twists reverse buffering transmission, includes clockwork spring structure, power transmission mechanism, axle (5), transmission structure, clockwork spring in installation axle (11), vice clockwork spring (12) and clamp plate (13), its characterized in that: there is hole (8) at the middle part of transmission structure, there is hole step face (7) in hole (8), install first spiral coil structure (1) and second spiral coil structure (9) in hole (8), first spiral coil structure (1) and second spiral coil structure (9) are installed respectively in hole step face (7) both sides, there is the spiral groove spiral coil one side in first spiral coil structure (1) and second spiral coil structure (9), power transmission mechanism includes sliding support (2), output support (3) and direction biography power round pin (4), output support (3) are between first spiral coil structure (1) and second spiral coil structure (9), axle (5) pass first spiral coil structure (1) and second spiral coil structure (9) and output support (3) mid-mounting hole, each curb plate cover of output support (3) both sides is equipped with a sliding support (2), the side plates at the two sides of the output bracket (3) are all provided with strip-shaped grooves, the guide force transmission pin (4) passes through the sliding bracket (2), the middle part of the guide force transmission pin (4) is arranged in a strip-shaped groove of a side plate of the output bracket (3), the two ends of the guiding force transmission pin (4) are respectively arranged in the thread grooves corresponding to the first thread coil structure (1) and the second thread coil structure (9), a clockwork spring structure is arranged in the mounting holes in the middle parts of the first spiral wire coil structure (1) and the second spiral wire coil structure (9), the end part of the outer ring of the clockwork spring structure is fixed through a mounting groove corresponding to the spiral disc, two pairs of clockwork spring inner mounting shafts (11) are arranged, each pair of clockwork spring inner mounting shafts (11) corresponds to one clockwork spring structure, the clockwork spring inner mounting shaft (11) is mounted on the excircle of the shaft (5), and the clockwork spring inner mounting shaft (11) penetrates through a clockwork spring structure corresponding to the spiral disc;

the transmission structure is a transmission gear (6);

a coaxial clockwork spring inner mounting shaft (11) is connected through a bearing, and the bearing is arranged between the first spiral coil structure (1) and the second spiral coil structure (9);

the inner end of a clockwork spring of the clockwork spring structure is provided with a clockwork spring inner end wavy line structure (15), the clockwork spring inner end wavy line structure (15) is provided with a wavy groove (14), an inner mounting shaft (11) of the clockwork spring is arranged in the wavy groove (14), and the end part of the clockwork spring inner end wavy line structure (15) is fixed with a pressing plate (13) through a screw;

the first spiral disc structure (1) and the second spiral disc structure (9) are connected with the inner hole step surface (7) into a whole;

the first spiral coil structure (1) and the second spiral coil structure (9) are respectively composed of 1-6 spiral coils;

first spiral coil structure (1) and second spiral coil structure (9) comprise 2 at least spiral coils, have power transmission device between the adjacent spiral coil in the spiral coil structure.

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