CN208519127U - A kind of two-stage gear of soft impulse - Google Patents
A kind of two-stage gear of soft impulse Download PDFInfo
- Publication number
- CN208519127U CN208519127U CN201820802245.XU CN201820802245U CN208519127U CN 208519127 U CN208519127 U CN 208519127U CN 201820802245 U CN201820802245 U CN 201820802245U CN 208519127 U CN208519127 U CN 208519127U
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- gear
- constant mesh
- mesh gear
- engaged
- shifting shaft
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Abstract
The utility model discloses a kind of two-stage gears of soft impulse, including the shifting shaft being connected in two racks, shifting shaft is arranged symmetrically on the position between two racks, and there are two tapered surfaces, and two biggish sides of tapered surface area are close together, third constant mesh gear and the 4th constant mesh gear engaged therewith are respectively arranged on two tapered surfaces, the first constant mesh gear is engaged on the third constant mesh gear, first constant mesh gear is engaged with input gear, the second constant mesh gear is engaged on 4th constant mesh gear, and first constant mesh gear carried out with the second constant mesh gear by axis it is connected, one free end of the shifting shaft is as output shaft, output wheel is connected on output shaft.The utility model is shifted gears using shifting shaft and the separation of gear with engaging, and can not only be realized and be shifted gears during exercise, moreover it is possible to which the structure for simplifying gear substantially reduces the impact in shift process, solves the disadvantage that traditional gear.
Description
Technical field
The utility model relates to a kind of gears, and in particular to a kind of two-stage gear of soft impulse.
Background technique
It is widely applied to change revolving speed and torque, the gear shift of engine output in various vehicles and machinery
In the middle, realize that a fixed or point gear changes output torque and revolving speed by switching different gear sets.Not only using gear
It can change transmission ratio, meet different driving conditions to the needs of tractive force, prime mover is made to be worked under advantageous operating condition as far as possible,
Meet the size that possible output speed requires and changes torque in the size and output shaft of output speed in a big way, also
Reverse travel may be implemented, interrupt the requirements such as power, neutral gear operation
But currently, traditional gear shift when, that is, switching gear train when using handsetting gear method, pass through by
Gear toggles it to different positions to realize different transmissions, and this requires need clutch engagement competence exertion in shift
Effect, phenomena such as increasing the complexity of structure, and can also generate greater impact during handsetting gear and beat tooth.
And although automobile manual transmission solves the problems, such as greatly to impact, but since synchronizer, engaging sleeve are isostructural
In the presence of structure is extremely complex, is not suitable for small-sized machine or vehicle.
Utility model content
The purpose of this utility model is to provide a kind of two-stage gears of soft impulse, to solve asking for the prior art
Topic, the utility model are shifted gears with engaging using shifting shaft and the separation of gear, can not only realize and shift gears during exercise, and also
The structure that gear can be simplified, substantially reduces the impact in shift process, solves the disadvantage that traditional gear.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of two-stage gear of soft impulse, including the shifting shaft being connected in two racks, shifting shaft is located at two
Tapered surface there are two being symmetrical arranged on position between a rack, and the biggish side bottom surface of two tapered surface areas is tightly attached to one
It rises, third constant mesh gear and the 4th constant mesh gear engaged therewith is respectively arranged on two tapered surfaces, the third is normal
The first constant mesh gear is engaged on meshing gear, the first constant mesh gear is engaged with input gear, the 4th normal engaging tooth
Be engaged with the second constant mesh gear on wheel, and the first constant mesh gear carried out with the second constant mesh gear by axis it is connected, it is described
One free end of shifting shaft is connected with output wheel on output shaft as output shaft.
Further, third constant mesh gear and the 4th constant mesh gear pass through the rack of the corresponding side of pivot flange
It is connected.
Further, third constant mesh gear and the 4th constant mesh gear and pivot flange are rigidly connected, and pivot flange is logical
Bearing is crossed to connect with rack.
Further, the number of teeth of the 4th constant mesh gear is greater than the number of teeth of third constant mesh gear.
Further, the number of teeth of the first constant mesh gear is greater than the number of teeth of the second constant mesh gear.
Further, it is equipped with and rubs on the inside of the outside of tapered surface and third constant mesh gear and the 4th constant mesh gear
Wipe material coating.
Compared with prior art, the utility model has technical effect beneficial below:
In operation, revolving speed and torque are inputted the utility model by input gear, the first constant mesh gear and input
Gear engagement, revolving speed and torque are transmitted to the first constant mesh gear in turn, and the second constant mesh gear and the first constant mesh gear are solid
Even, therefore the first constant mesh gear and the second constant mesh gear keep identical revolving speed.First constant mesh gear is often engaged with third
Gear engagement, the second constant mesh gear engages with the 4th constant mesh gear, and the first constant mesh gear, third constant mesh gear and
Second constant mesh gear, the 4th constant mesh gear have different drive ratios, thus the second constant mesh gear and the 4th normal engaging tooth
Wheel has different revolving speeds.When using top gear, output shaft and the 4th constant mesh gear are connected and take off with the second constant mesh gear
It opens, output shaft and the 4th constant mesh gear keep identical revolving speed, when using bottom gear, output shaft and the second normal engaging tooth at this time
Wheel is connected and disengages with the 4th constant mesh gear, and output shaft and the second constant mesh gear keep identical revolving speed, the utility model
Structure is simple, and good reliability, manufacturing cost is low, occupies little space, adaptable for varying environment, utilizes shifting shaft and gear
Separation shift gears with engaging, can not only realize and shift gears during exercise, moreover it is possible to which the structure for simplifying gear substantially reduces
Impact in shift process solves the disadvantage that traditional gear, the utility model realize soft impulse shift
Function, structure very simple, in the transmission of various spaces are limited, cost is limited, reliability requirement is high small-sized machine and vehicle
There is good applicability in system.
Further, two pairs of constant mesh gears (third constant mesh gear and the first constant mesh gear and the 4th often engagements
Gear and the second constant mesh gear) the collocation of the different numbers of teeth realize two-stage gear transmission ratio it is different.
Further, friction material coating is used on shifting shaft and third constant mesh gear, the 4th constant mesh gear, and led to
Crossing tapered surface combines the two, and shift can be realized in the axial movement for only controlling shifting shaft in this way, while friction material is to shift
The revolving speed of front and back and torque are buffered.
Further, third constant mesh gear, the 4th constant mesh gear and pivot flange are rigidly connected, and pivot flange leads to again
Bearing is crossed to connect with rack, so that gear is made to be supported, and shifting shaft is not by the moment of flexure generated from gear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the control logic flow diagram of the utility model；
Transmission process schematic diagram when Fig. 3 is using top gear；
Transmission process schematic diagram when Fig. 4 is using bottom gear；
Fig. 5 is that shifting shaft relevant portion part splits schematic diagram.
Wherein: 1. input gears, 2. first constant mesh gears, 3. second constant mesh gears, 4. third constant mesh gears, 5.
4th constant mesh gear, 6. shifting shafts, 7. pivot flanges, 8. output wheels, 9. racks, 10. input shafts, 11. output shafts.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, Fig. 3 to Fig. 5, a kind of two-stage gear of soft impulse, including being connected to changing in two racks 9
Gear shaft 6, shifting shaft 6, which is located on the position between two racks 9, to be symmetrical arranged there are two tapered surface, and two tapered surface areas compared with
Big side is close together, and third constant mesh gear 4 and the 4th engaged therewith is respectively arranged on two tapered surfaces and is often nibbled
The inside for closing gear 5, the outside of tapered surface and third constant mesh gear 4 and the 4th constant mesh gear 5 is equipped with friction material
Coating, third constant mesh gear 4 and the 4th constant mesh gear 5 are connected by the rack 9 of the corresponding side of pivot flange 7, the
Three constant mesh gears 4 and the 4th constant mesh gear 5 are rigidly connected with pivot flange 7, and pivot flange 7 is connected by bearing and rack 9
It connecing, the first constant mesh gear 2 is engaged on the third constant mesh gear 4, the first constant mesh gear 2 is engaged with input gear 1,
The second constant mesh gear 3, and the first constant mesh gear 2 and the second constant mesh gear 3 are engaged on 4th constant mesh gear 5
Connected, diameter of the diameter greater than third constant mesh gear 4 of the 4th constant mesh gear 5, the first constant mesh gear 2 are carried out by axis
Diameter be greater than the second constant mesh gear 3 diameter, a free end of the shifting shaft 6 is as output shaft 11, output shaft 11
On be connected with output wheel 8.
When in use, pass through a tapered surface of control shifting shaft 6 and the cooperation of third constant mesh gear 4 or another taper
Face and the 4th constant mesh gear 5 cooperate to realize shift, in the present embodiment, carry out gear shift operation, control by control module
Module includes for controlling the shift steering engine on shifting shaft 6, the shift shaft speed transducer being connected on shifting shaft 6, being connected to
Two gear velocity sensors on third constant mesh gear 4 and the 4th constant mesh gear 5 and for according to shifting shaft revolving speed
The control circuit that sensor and gear velocity sensor testing result control shift steering engine, the input terminal of control circuit connect
It is connected to shift switch.
Control module passes through the tach signal of acquisition gear and shifting shaft, and according to preset system rotary inertia, system
The parameters such as rotary resistance are handled signal by built-in algorithm, so control shift steering engine output, make shifting shaft with
Reasonable kinetic parameter and time sequence parameter are axially moved, and adjust the pressing force of tapered surface to make synchronising torque in reasonable model
In enclosing, and then further decrease shift shock.
Two pairs of constant mesh gears (third constant mesh gear 4 and the first constant mesh gear 2 and 5 Hes of the 4th constant mesh gear
Second constant mesh gear 3) normal meshing state is kept, and gear switching is carried out by the axial movement of shifting shaft, as simple as possible
The generation that phenomena such as beating tooth, rigid shock is avoided when shift is realized in single structure.
Synchronization structure selects friction material to manufacture using friction tapered surface, so that need to only control shifting shaft when shift
The feedback control of shift process can be realized in axial kinetic parameter, and the friction tapered surface allows certain rotational speed difference to deposit
Impact when synchronous in, softening shift process.While stating function in realization, the structure is simple, and manufacturing cost is low, can
It is preferable by property, it occupies little space.
Control module controls the dynamics of shifting shaft axial movement by collected rotary speed information after signal processing
Parameter and time sequence parameter, further reduce shift shock；And the control module can be according to the difference of applying working condition to control
Characteristic parameter in algorithm processed carries out matching and calibration, so that the mechanism has the wider scope of application.
The utility model operating process is described in detail below:
The utility model includes mechanical module and control module two parts, and mechanical module is often engaged by input gear 1, first
Gear 2 and third constant mesh gear 4 and the second constant mesh gear 3 and the 4th constant mesh gear 5, shifting shaft 6, pivot flange 7
It is formed with output wheel 8；Have on shifting shaft 6 and third constant mesh gear 4 engaged therewith and the 4th constant mesh gear 5 for subtracting
The friction tapered surface of weak sliding gear impact, is made, and can be replaced, structure is as shown in Figure 5 of friction material.Control module master
It to include shift switch, three speed probes, control circuit and shift steering engine.
The utility model realizes that the principle of two-stage gear is transmitted refering to Fig. 3 and Fig. 4, revolving speed and torque by input shaft 10
To input gear 1, the first constant mesh gear 2 is engaged with input gear 1, and revolving speed and torque are transmitted to the first constant mesh gear in turn
2, the second constant mesh gear 3 and the first constant mesh gear 2 are connected, therefore the first constant mesh gear 2 and the second constant mesh gear 3 are kept
Identical revolving speed.First constant mesh gear 2 is engaged with third constant mesh gear 4, the second constant mesh gear 3 and the 4th normal engaging tooth
5 engagement of wheel, and the first constant mesh gear 2, third constant mesh gear 4 and the second constant mesh gear 3, the 4th constant mesh gear 5 tool
Have different gear ratios (namely) transmission ratio, thus the second constant mesh gear 3 and the 4th constant mesh gear 5 have different turn
Speed.When using top gear, output shaft 11 and the 4th constant mesh gear 5 are connected and disengage with the second constant mesh gear 3, defeated at this time
Shaft 11 and the 4th constant mesh gear 5 keep identical revolving speed, as shown in Figure 3.When using bottom gear, output shaft 11 and second is often
Meshing gear 3 is connected and disengages with the 4th constant mesh gear 5, and output shaft 11 and the second constant mesh gear 3 are kept for identical turn
Speed, as shown in Figure 4.
Shifting commands are issued by shift switch by operator first when carrying out gear switching, which is transmitted to control
Shift steering engine work is controlled in circuit processed, after being handled by control circuit, is axially moved shifting shaft thus with the former tapered surface that rubs
It disengages.Corresponding signal is passed to control circuit by the sensor for being respectively used to detection gear rotational speed and shifting shaft revolving speed at this time, with
For the two rotational speed differences as input quantity, the function of preset rotation speed difference and steering engine velocity of rotation in system exports steering engine turn signal,
To control its speed moved axially further, until itself and new friction taper face contact.Such control logic is further
Reduce shift shock.After shifting shaft and new friction taper face contact, control system will carry out a tach signal again and adopt
Collection and processing, then the torque of control circuit control shift steering engine output makes to control the normal pressure between friction tapered surface
It obtains with reasonable synchronising torque (moment of friction between i.e. two new friction tapered surfaces) in synchronizing process, until output shaft and tooth
It after wheel speed is fully synchronized, will be shifted gears shaft compression by other mechanisms, shift steering engine stops working, and shift is completed.
The structure of friction tapered surface is as shown in figure 5, two therein big pinion gear is the 4th often engagement in respectively Fig. 1
Gear 5, third constant mesh gear 4；Shifting shaft 6 in Fig. 5 in axis, that is, Fig. 1 of two tapered surfaces of band.Shifting shaft need to only be controlled
It is axially moved kinetic parameter, so that it may realize the control to synchronising torque, this makes, and the utility model structure is simple and control is easy
In realization.Friction tapered surface is made using the material of friction plate in similar automobile clutch, including but not limited to carbon ceramics, class stone
The materials such as cotton.Above-mentioned two gear is connected with pivot flange 7 respectively, and pivot flange and rack are installed by bearing, and rack is considered as
Bearing block, flange are considered as axis, and then gear and shifting shaft 6 is made to be supported.
Claims (6)
1. a kind of two-stage gear of soft impulse, which is characterized in that including the shifting shaft being connected on two racks (9)
(6), tapered surface there are two being symmetrical arranged on position of the shifting shaft (6) between two racks (9), and two tapered surface areas
Biggish side bottom surface is close together, be respectively arranged on two tapered surfaces third constant mesh gear (4) engaged therewith and
4th constant mesh gear (5) is engaged with the first constant mesh gear (2) on the third constant mesh gear (4), the first normal engaging tooth
Wheel (2) is engaged with input gear (1), is engaged with the second constant mesh gear (3) on the 4th constant mesh gear (5), and first
Constant mesh gear (2) carries out connected, a free end conduct of the shifting shaft (6) with the second constant mesh gear (3) by axis
Output shaft (11) is connected with output wheel (8) on output shaft (11).
2. a kind of two-stage gear of soft impulse according to claim 1, which is characterized in that third constant mesh gear
(4) it is connected by the rack (9) of pivot flange (7) corresponding side with the 4th constant mesh gear (5).
3. a kind of two-stage gear of soft impulse according to claim 2, which is characterized in that third constant mesh gear
(4) it is rigidly connected with the 4th constant mesh gear (5) with pivot flange (7), pivot flange (7) is connect by bearing with rack (9).
4. a kind of two-stage gear of soft impulse according to claim 1, which is characterized in that the 4th constant mesh gear
(5) the number of teeth is greater than the number of teeth of third constant mesh gear (4).
5. a kind of two-stage gear of soft impulse according to claim 4, which is characterized in that the first constant mesh gear
(2) the number of teeth is greater than the number of teeth of the second constant mesh gear (3).
6. a kind of two-stage gear of soft impulse according to claim 1, which is characterized in that the outside of tapered surface with
And friction material coating is equipped on the inside of third constant mesh gear (4) and the 4th constant mesh gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802245.XU CN208519127U (en) | 2018-05-28 | 2018-05-28 | A kind of two-stage gear of soft impulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820802245.XU CN208519127U (en) | 2018-05-28 | 2018-05-28 | A kind of two-stage gear of soft impulse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208519127U true CN208519127U (en) | 2019-02-19 |
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ID=65340690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820802245.XU Expired - Fee Related CN208519127U (en) | 2018-05-28 | 2018-05-28 | A kind of two-stage gear of soft impulse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208519127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518455A (en) * | 2018-05-28 | 2018-09-11 | 长安大学 | A kind of mechanical reduction gear for realizing soft impulse |
-
2018
- 2018-05-28 CN CN201820802245.XU patent/CN208519127U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518455A (en) * | 2018-05-28 | 2018-09-11 | 长安大学 | A kind of mechanical reduction gear for realizing soft impulse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20190528 |