CN2876440Y - Gear speed changing box - Google Patents
Gear speed changing box Download PDFInfo
- Publication number
- CN2876440Y CN2876440Y CN 200620000283 CN200620000283U CN2876440Y CN 2876440 Y CN2876440 Y CN 2876440Y CN 200620000283 CN200620000283 CN 200620000283 CN 200620000283 U CN200620000283 U CN 200620000283U CN 2876440 Y CN2876440 Y CN 2876440Y
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- CN
- China
- Prior art keywords
- gear
- ring
- shift fork
- shaft
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a gear box which has different gear positions, including a first axis, a second axis, and at least two pairs of gears which are installed on the first axis and the second axis and engaged with each other; the first axis gear and the second axis gear are respectively fixed at axial direction, wherein the first axis gear is fixed on the first axis and the second axis gear is movably wrapped on the second axis; a synchronizer which is connected with the fork is provided between the second axis gears. Because the product of the utility model installs the synchronizer on the shift structure, and the gear shift process does not move the gear and only moves the synchronizer, the gearshift transmission from the input shaft to the output shaft is realized, therefore the utility model can finish the gear shift under the situations that the gear box has stopped or has not completely stopped; the operation is easy and smooth, convenient, reliable; the noise is small; the structure is simple and compact; and the utility model does not damage the gear and other transmission components.
Description
Technical field
The utility model relates to a kind of gearbox, relates to a kind of grade speed-changing gear box that has particularly.
Background technique
At present, for gearbox, generally all be a kind of speed, for the occasion that has velocity variations to require, great majority are to adopt stepless speed regulation motor, because various speed-adjustable motors itself all have certain narrow limitation, the end is that cost is too high, wanting the end is that the mechanical property of motor is soft partially, can not change the size of output torque, can not accomplish the unification of Economy and practicability, can not give full play to the advantage of motor reduction gearbox, particularly, more obvious in the occasion that grade speed change is arranged.Have grade speed change also to have adopt to change the belt pulley between motor and the speed reducer at present, adjust speed ratio, reach the purpose of speed change, this mode shift time is long, efficient is low, troublesome poeration.Also there is triple gear by inside (three retaining speed changes or many grades) to utilize the direct mobile shifting gear of fork to reach the purpose of speed change, though more preceding a kind of easy to operate, owing to be direct carrier wheel, gear can only be made straight-tooth, therefore the strength of gear teeth descends, easily broken teeth.And out of supply easily, noise is big, is not the desirable grade speed-changing gear box that has.
The model utility content
The purpose of this utility model is at the problems referred to above, and a kind of strength of gear teeth height is provided, convenient and reliable operation the retaining speed-changing gear box arranged.
For achieving the above object, the technical solution of the utility model is: a kind of have a grade speed-changing gear box, comprise first, second and be installed on first, second and at least two pairs of driving gears being engaged with each other, the primary gear and second shaft transmission gear be axial restraint respectively, wherein primary gear is fixed in first, and second shaft transmission gear is movably set in second; Between second shaft transmission gear, be provided with the synchronizer that links to each other with shift fork, the connecting ring that this synchronizer comprises the transmission ring that is connected with second axle key, be connected with a joggle with transmission ring and be arranged on described transmission ring both sides and and the synchronizing ring of connecting ring engagement; Be provided with outer cone surface or female cone surface in the side of synchronizing ring, and be provided with female cone surface or outer cone surface with described outer cone surface or female cone surface engagement in the described second shaft transmission gear side, and with the external toothing of described connecting ring engagement.
Also be provided with between described connecting ring and transmission ring along the equally distributed connecting ring positioning device of circumference, this positioning device constitutes by being arranged on the spring sphere locating stud on the transmission ring and the location notch hole of connecting ring inboard.
Between described connecting ring and transmission ring, also be provided with the synchronizing ring positioning block, the outside of establishing the hole and being enclosed within described sphere locating stud in the middle of this synchronizing ring positioning block, side at the synchronizing ring positioning block is provided with fin, and is provided with the synchronizing ring groove at the corresponding position of described synchronizing ring.
Described first can be input shaft, and second is output shaft.
Described first can be intermediate propeller shaft, and second is output shaft, also is provided with input shaft in gearbox, and input shaft is provided with the input shaft gear with the intermediate propeller shaft engagement.Described input shaft can be motor shaft, and motor directly is connected the gearbox sidewall by end flange.Can be provided with lower margin in described gearbox bottom.Described input shaft is coaxial with described output shaft, be provided with synchronizer in adjacent input shaft one side of output shaft, and be provided with and the outer cone surface of described synchronizer synchronizing ring or the female cone surface or the surperficial external toothing that meshes with described connecting ring that reaches of outer cone of female cone surface engagement in adjacent output shaft one side of described input shaft gear.
The driving gear that is arranged on described output shaft and the intermediate propeller shaft can be five pairs, and on output shaft, being provided with three synchronizers, these three synchronizers are located at respectively between first and second driving gears, third and fourth driving gear and the 5th driving gear and the input shaft gear; The shift fork of three synchronizers is separately positioned on three shift fork push rods, is provided with gear change hand lever on gearbox, and one of them shift fork push rod is continuous respectively at diverse location for this gear change hand lever.Described three shift fork push rods are positioned at same plane, be respectively equipped with the push rod positioning device on each shift fork push rod, and be provided with interlock between each shift fork push rod; Described push rod positioning device is made of the spring that is arranged on pusher bar support, positioning ball and the positioning groove that is arranged on the shift fork push rod; Described interlock is by the through hole of shift fork push rod in the middle of being arranged on, the latch recess that is provided with on the shift fork push rod of both sides, and the described through hole of connection that on pusher bar support, is provided with and the duct of latch recess, and the interlocking part that is separately positioned in described through hole and the duct constitutes, the length that is arranged in the interlocking part of described through hole equals the diameter of shift fork push rod, and the length that is arranged in the interlocking part in described duct slightly is longer than the length in duct.Described interlocking part is a steel ball.
Because the utility model product is on the gearshift structure synchronizer to be housed, and gearshift procedure is the only synchronizing ring and the connecting ring of mobile synchronizer of not mobile driving gear, the speed change transmission of realization from the input shaft to the output shaft, therefore can under the situation that stops or not stopping fully, finish gearshift, operation is easily steady, convenient, reliable, noise is little, simple in structure, compact, can not damage gear and other transmission part simultaneously yet; Also can adopt the helical gear transmission between the driving gear, the strength of gear teeth is higher.After the connecting ring positioning device can guarantee synchronizing ring and driving gear contacts, connecting ring meshes with driving gear again, move more reliably, the synchronizing ring positioning block then is used to make synchronizing ring and connecting ring positioning device to keep moving synchronously and then keeping synchronously in the starting stage with connecting ring.In the process of pulling out into shelves, connecting ring one moves, positioning block axially has little moving, synchronizing ring also has little moving axially in the drive synchronizer, so the surperficial outer or female cone of its outer or female cone with the gear homonymy can contact between surperficial owing to the effect of surface friction drag, make between gear and the synchronizer gradually with speed (synchronously) thus can realize easily stirring of connecting ring, also can under situation about not exclusively stopping, can advancing shelves.In the process of pull-off shelves, connecting ring one moves, because positioning block is in the return process, groove effect on the fin pulling synchronizing ring on it, make synchronizing ring that a little return that moves axially be arranged, disengage between thereby the outer or female cone that makes synchronizing ring outer or female cone surperficial and the gear homonymy is surperficial, thereby realize out of supply.Described push rod positioning device can be positioned the shift fork push rod link position or neutral gear position, and described interlock then is used for the interlocking between each shift fork push rod, prevents the situation that synchronizer connects transmission simultaneously.Because motor is to be directly installed on the casing, so compact structure, integral installation are convenient, and noise is little, has saved accessories such as shaft joint, belt pulley.Casing has lower margin to install, and motor is to be directly installed on the casing in addition, makes that integral installation is convenient and reliable, compact structure, noise be little.A handle can be realized many grades of variable speed operations, makes whole machine installation convenient, reliable, practical.
Description of drawings
Fig. 1 is the erection drawing that the retaining speed-changing gear box is arranged of the utility model six retaining speed changes.
Fig. 2 is the erection drawing of synchronizer.
Fig. 3 a is the sectional view of the transmission ring of synchronizer shown in Figure 2.
Fig. 3 b is the right elevation of Fig. 3 a.
Fig. 4 a is the sectional view of the connecting ring of synchronizer shown in Figure 2.
Fig. 4 b is the left view of Fig. 4 a.
Fig. 4 c is that the A of Fig. 4 b is to view.
5a is the sectional view of the synchronizing ring of synchronizer shown in Figure 2.
Fig. 5 b is the left view of Fig. 5 a.
Fig. 6 is the sphere locating pin structure schematic representation of synchronizer.
Fig. 7 is the synchronizing ring positioning block sectional view of synchronizer.
Fig. 8 a is the gearshift mechanism front view.
Fig. 8 b is the plan view of Fig. 8 a.
Fig. 8 c is the left view of Fig. 8 a.
Among the figure
1. input shaft 2. intermediate propeller shafts 3. output shafts 4. transmission shaft driving gears
5. output shaft driving gear 6. input shaft driving gears 7. synchronizers
8. shift fork 9. shift fork push rods 10. gear change hand levers 11 needle bearings 12. motors
51. first driving gear, 52. second driving gears 53. the 3rd driving gear
54. the 4th driving gear 55. the 5th driving gear
71. transmission ring 72. connecting rings 73. synchronizing ring 74. sphere locating studs 75. springs
76. the synchronizing ring positioning block 711. positioning pin holes 712. splines 713. outer teeth that connect
721. location notch hole 722. synchronizing ring connect and connect tooth in the teeth groove 723.
731. synchronizing ring connects tooth 732. outer cones surface 733. synchronizing ring grooves
761. positioning block fin
91. pusher bar support 92. push rod positioning devices 93. interlocks
921. positioning ball 922. springs 923. positioning grooves
931. through hole 932. latch recess 933. ducts 934. interlocking parts
Embodiment
As shown in Figure 1, of the present utility model have a grade speed-changing gear box, comprise input shaft 1, intermediate propeller shaft 2 and output shaft 3, input shaft 1 is provided with the input shaft gear 6 with intermediate propeller shaft 2 engagements, described input shaft 1 is a motor shaft, and motor 12 directly is connected the gearbox sidewall by end flange, is provided with lower margin in described gearbox bottom.Intermediate propeller shaft 2 and output shaft 3 are provided with the five pairs of driving gears 4,5 that are engaged with each other, intermediate propeller shaft driving gear 4 and output shaft driving gear 5 difference axial restraints, wherein intermediate propeller shaft driving gear 4 is fixed in intermediate propeller shaft 2, and output shaft upper transfer gear 5 is movably set in output shaft 3, in Fig. 1, output shaft driving gear 5 is to be installed on the output shaft by fixed cover and needle bearing 11 (also can overlap sometimes).In output shaft upper transfer gear 5 is to stir synchronizer 7 by fork to realize and being connected of output shaft, synchronizer 7 structures are referring to Fig. 2, the connecting ring 72 that this synchronizer 7 comprises the transmission ring 71 that is connected with output shaft 3 keys, be connected with a joggle with transmission ring 71 and be arranged on described transmission ring 72 both sides and and the synchronizing ring 73 of connecting ring 72 engagements; The structure of transmission ring 71 is asked for an interview Fig. 3 a, Fig. 3 b, is provided with spline 712 in the inboard of transmission ring 71 and is used for being connected with output shaft 3 keys, connects tooth 713 and be used for being connected with connecting ring 72 outside transmission ring 71 outsides are provided with; The structure of connecting ring 72 is provided with the interior connection tooth 723 that is connected with transmission ring 71 and connects teeth groove 722 with the synchronizing ring that is connected with synchronizing ring 73 referring to Fig. 4 a, 4b and 4c in the inboard of connecting ring 72; Be provided with outer cone surface 732 or female cone surface in the side of synchronizing ring 73, see Fig. 5 a, and be provided with female cone surface or outer cone surface with described outer cone surface 732 or female cone surface engagement in described output shaft driving gear 5 sides, and with the external toothing of described connecting ring 72 engagements.
As shown in Figure 2, between described connecting ring 72 and transmission ring 71, also be provided with along the equally distributed connecting ring positioning device of circumference, this positioning device is made of the location notch hole 721 that is arranged on spring 75, sphere locating stud 74 and connecting ring 71 inboards on the transmission ring 71, and the structure of sphere locating stud 74 as shown in Figure 6.Sphere locating stud 74 and spring 75 are installed in the positioning pin hole 711 of transmission ring 71, shown in Fig. 3 a, 3b.
Referring to Fig. 2, Fig. 5 a, Fig. 5 b and Fig. 7, between described connecting ring 72 and transmission ring 71, also be provided with synchronizing ring positioning block 76, the outside of establishing the hole and being enclosed within described sphere locating stud 74 in the middle of this synchronizing ring positioning block 76, side at synchronizing ring positioning block 76 is provided with fin 761, and is provided with synchronizing ring groove 733 at the corresponding position of described synchronizing ring 73.
In Fig. 1, described input shaft 1 is coaxial with described output shaft 3, be provided with synchronizer 7 in output shaft 3 adjacent input shaft 1 one sides, and be provided with and the outer cone surface 732 of described synchronizer 7 synchronizing ring 73 or the female cone surface or the surperficial external toothing that meshes with described connecting ring 72 that reaches of outer cone of female cone surface engagement in described input shaft gear 6 adjacent output shaft 3 one sides.The synchronizer 7 that is arranged on the described output shaft 3 is three, and these three synchronizers 7 are located at respectively between first and second driving gears, 51,52, the third and fourth driving gears 53,54 and the 5th driving gear 55 and the input shaft gear 6.
Shown in Fig. 8 a, 8b and 8c, the shift fork 8 of three synchronizers 7 is separately positioned on three shift fork push rods 9, is provided with gear change hand lever 10 on gearbox, and one of them shift fork push rod 9 is continuous respectively at diverse location for this gear change hand lever 10.Described three shift fork push rods 9 are positioned at same plane, be respectively equipped with push rod positioning device 92 on each shift fork push rod 9, and be provided with interlock 93 between each shift fork push rod 9; Described push rod positioning device 92 is made of the spring 922 that is arranged on pusher bar support 91, positioning ball 921 and the positioning groove 923 that is arranged on the shift fork push rod 9; Described interlock 93 is by the through hole 931 of shift fork push rod 9 in the middle of being arranged on, the latch recess 932 that is provided with on both sides shift fork push rod 9, and the described through hole 931 of connection that on pusher bar support 91, is provided with and the duct 933 of latch recess 932, and the interlocking part 934 that is separately positioned in described through hole 931 and the duct 933 constitutes, the length that is arranged in the interlocking part 934 of described through hole 931 equals the diameter of shift fork push rod 9, and the length that is arranged in the interlocking part 934 in described duct 933 slightly is longer than the length in duct 933.Described interlocking part 934 can be steel ball.Pull out gear mechanism and have interlocking function, can guarantee to pull out into gear at every turn.
Be that example is illustrated with six retainings, three shaftgear speed changers above, in fact of the present utility model have grade gear-shift transmission also can adopt the diaxon gear-shift transmission, as have only input shaft, output shaft, driving gear also can be two pairs or more, and synchronizer can be located on input shaft or the output shaft or the like.But the utility model product is not limited to above-mentioned specific embodiment, the protection domain that all any improvement that the utility model product is done or modification all belong to the utility model claim to a product.
Claims (10)
1. one kind has a grade speed-changing gear box, comprise first, second and be installed on first, second and at least two pairs of driving gears being engaged with each other, it is characterized in that: the primary gear and second shaft transmission gear be axial restraint respectively, wherein primary gear is fixed in first, and second shaft transmission gear is movably set in second;
Between second shaft transmission gear, be provided with the synchronizer that links to each other with shift fork, the connecting ring that this synchronizer comprises the transmission ring that is connected with second axle key, be connected with a joggle with transmission ring and be arranged on described transmission ring both sides and and the synchronizing ring of connecting ring engagement; Be provided with outer cone surface or female cone surface in the side of synchronizing ring, and be provided with female cone surface or outer cone surface with described outer cone surface or female cone surface engagement in the described second shaft transmission gear side, and with the external toothing of described connecting ring engagement.
2. according to claim 1 have a grade speed-changing gear box, it is characterized in that: also be provided with between described connecting ring and transmission ring along the equally distributed connecting ring positioning device of circumference, this positioning device constitutes by being arranged on the spring sphere locating stud on the transmission ring and the location notch hole of connecting ring inboard.
3. according to claim 2 have a grade speed-changing gear box, it is characterized in that: between described connecting ring and transmission ring, also be provided with the synchronizing ring positioning block, the outside of establishing the hole and being enclosed within described sphere locating stud in the middle of this synchronizing ring positioning block, side at the synchronizing ring positioning block is provided with fin, and is provided with the synchronizing ring groove at the corresponding position of described synchronizing ring.
4. described a grade speed-changing gear box arranged according to claim 1,2 or 3, it is characterized in that: described first is input shaft, and second is output shaft.
5. described a grade speed-changing gear box arranged according to claim 1,2 or 3, it is characterized in that: described first is intermediate propeller shaft, and second be output shaft, also is provided with input shaft in gearbox, and input shaft is provided with the input shaft gear that meshes with intermediate propeller shaft.
6. according to claim 5 have a grade speed-changing gear box, and it is characterized in that: described input shaft is a motor shaft, and motor directly is connected the gearbox sidewall by end flange.
7. according to claim 5 have a grade speed-changing gear box, it is characterized in that: described input shaft is coaxial with described output shaft, be provided with synchronizer in adjacent input shaft one side of output shaft, and be provided with and the outer cone surface of described synchronizer synchronizing ring or the female cone surface or the surperficial external toothing that meshes with described connecting ring that reaches of outer cone of female cone surface engagement in adjacent output shaft one side of described input shaft gear.
8. according to claim 7 have a grade speed-changing gear box, it is characterized in that: the driving gear that is arranged on described output shaft and the intermediate propeller shaft is five pairs, and on output shaft, being provided with three synchronizers, these three synchronizers are located at respectively between first and second driving gears, third and fourth driving gear and the 5th driving gear and the input shaft gear; The shift fork of three synchronizers is separately positioned on three shift fork push rods, is provided with gear change hand lever on gearbox, and one of them shift fork push rod is continuous respectively at diverse location for this gear change hand lever.
9. according to claim 8 have a grade speed-changing gear box, and it is characterized in that: described three shift fork push rods are positioned at same plane, be respectively equipped with the push rod positioning device on each shift fork push rod, and be provided with interlock between each shift fork push rod; Described push rod positioning device is made of the spring that is arranged on pusher bar support, positioning ball and the positioning groove that is arranged on the shift fork push rod; Described interlock is by the through hole of shift fork push rod in the middle of being arranged on, the latch recess that is provided with on the shift fork push rod of both sides, and the described through hole of connection that on pusher bar support, is provided with and the duct of latch recess, and the interlocking part that is separately positioned in described through hole and the duct constitutes, the length that is arranged in the interlocking part of described through hole equals the diameter of shift fork push rod, and the length that is arranged in the interlocking part in described duct slightly is longer than the length in duct.
10. according to claim 5 have a grade speed-changing gear box, it is characterized in that: be provided with lower margin in described gearbox bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000283 CN2876440Y (en) | 2006-01-12 | 2006-01-12 | Gear speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000283 CN2876440Y (en) | 2006-01-12 | 2006-01-12 | Gear speed changing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876440Y true CN2876440Y (en) | 2007-03-07 |
Family
ID=37819677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000283 Expired - Fee Related CN2876440Y (en) | 2006-01-12 | 2006-01-12 | Gear speed changing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876440Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734459A (en) * | 2011-04-07 | 2012-10-17 | 长江大学 | Sliding table cylinder type multi-position fork shifting device |
| CN102966707A (en) * | 2012-11-30 | 2013-03-13 | 綦江齿轮传动有限公司 | Hybrid power transmission |
| CN105889464A (en) * | 2014-12-26 | 2016-08-24 | 浙江汇鑫传动机械有限公司 | Coaxial multi-stage gearbox |
-
2006
- 2006-01-12 CN CN 200620000283 patent/CN2876440Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734459A (en) * | 2011-04-07 | 2012-10-17 | 长江大学 | Sliding table cylinder type multi-position fork shifting device |
| CN102966707A (en) * | 2012-11-30 | 2013-03-13 | 綦江齿轮传动有限公司 | Hybrid power transmission |
| CN105889464A (en) * | 2014-12-26 | 2016-08-24 | 浙江汇鑫传动机械有限公司 | Coaxial multi-stage gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |