CN104070398A - Speed change mechanism for diehead threading machine - Google Patents
Speed change mechanism for diehead threading machine Download PDFInfo
- Publication number
- CN104070398A CN104070398A CN201410303970.9A CN201410303970A CN104070398A CN 104070398 A CN104070398 A CN 104070398A CN 201410303970 A CN201410303970 A CN 201410303970A CN 104070398 A CN104070398 A CN 104070398A
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- CN
- China
- Prior art keywords
- gear
- driven gear
- shaft
- speed driven
- shift fork
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
Abstract
The invention discloses a speed change mechanism for a diehead threading machine. The speed change mechanism comprises a gearbox body (1) and a gearbox cover (2) arranged on the gearbox body (1), wherein a driving mechanism and a shifting fork speed change mechanism which realizes the speed change of the driving mechanism are arranged in the gearbox body (1), a boss (23) in the shifting fork speed change mechanism is provided with two V-shaped slots (24), and steel balls are dropped into the V-shaped slots (24) to realize first locking of a shifting fork through the function of springs; an eccentric locating sleeve (34) is axially provided with steel balls, springs and fastening screws, wherein three pits (21) are formed in an incomplete flange plate (33) of a shaft sleeve (29), and the steel balls are dropped into the pits (21) under the function of the springs, therefore the secondary locking of the shifting fork can be realized. The speed change mechanism provided by the invention has the beneficial effects that variable and stable speed change can be realized, and the problem that a speed changer is out of stock cannot be caused due to two steel ball speed change devices.
Description
Technical field
The present invention relates to gear, particularly a kind of die head threading machine gear.
Background technology
Die head threading machine mostly is two speed with speed changer at present, and because its speed change stroke is little, the bowstring discrepancy in elevation of the circular motion track of speed change wabbler mechanism is little, can avoid its movement interference by the method that strengthens the gap of shift fork and gear.But when transmission design is three speed, speed change stroke strengthens, and the bowstring discrepancy in elevation of the circular motion track of speed change wabbler mechanism is large, just can not avoid its movement interference with the gap of strengthening shift fork and gear.
And the manipulation of the gear change hand lever of current three fast speed change die head threading machines is distant, the rocking of control lever shaft, beat are very unfavorable to speed change, if can not effectively overcome the rocking of control lever shaft, beat power, axle sleeve is shaken up, gear had just lost efficacy, because cost and machine space do not allow, so can not increase other mechanisms, eliminate the rocking of control lever shaft, beat, can only use the speed change that is rigidly connected.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, the die head threading machine gear that a kind of speed change accurate stable, speed changer can be not out of supply and cost is low is provided.
Object of the present invention is achieved through the following technical solutions: a kind of die head threading machine gear, it comprises gearbox body and is arranged on the case lid on gearbox body, in described casing, be provided with transmission mechanism and the shift fork gear of realizing transmission mechanism speed change, described shift fork gear comprises shift fork and rocking arm, the centre of described shift fork offers an axis hole, in axis hole, be set with an axis of guide, the axis of guide is slidably matched by key and shift fork, the two ends of the described axis of guide are arranged on gearbox body and case lid, wherein one end is fixed with holding screw, on a termination of described shift fork, be provided with the boss of rectangle, on axle head on described rocking arm, offer a rectangular channel, boss coordinates with rectangular channel, in the axle head of described rocking arm, offer a screwed hole, steel ball is installed in screwed hole from left to right successively, spring, holding screw, the axle head of rocking arm is used back-up ring to fix, in the hole of the other end of rocking arm, pass control lever shaft and be fixedly connected with key, described control lever shaft is also through being arranged on the axle sleeve on gearbox body, the centre of described axle sleeve is provided with disk with holes, disk is fixed by screws on gearbox body, the other end of described axle sleeve is provided with incomplete ring flange, described ring flange is glued with an eccentric positioning sleeve, described control lever shaft is through eccentric positioning sleeve, and be connected with control lever shaft with pin, the other end of described control lever shaft is provided with one handle seat by key and screw, gear change hand lever is installed on handle set.
Described transmission mechanism comprises motor, motor gear, first order driven shaft, second level driving shaft and output gear shaft, on described first order driven shaft, be set with first order driven gear, described first order driven gear coordinates with motor gear, on described second level driving shaft, high speed third wheel is installed, middling speed driving wheel, low speed driving wheel, described low speed driving wheel is between high speed third wheel and middling speed driving wheel, bearing is equipped with at the two ends of described second level driven shaft, bearing is arranged on gearbox body and case lid, high speed driven gear is installed on described output gear shaft, middling speed driven gear, low speed driven gear, wherein low speed driven gear is between high speed driven gear and middling speed driven gear, bearing is equipped with on the both sides of described output gear shaft, output shaft gear is arranged on gearbox body and case lid by bearing.
Described high speed driven gear and middling speed driven gear are free gear, and high speed driven gear and middling speed driven gear are provided with dog-clutch A near the end face of low speed driven gear one end, low speed driven gear both ends of the surface are provided with dog-clutch B, on described output shaft gear, be provided with a square key, dog-clutch A on described high speed driven gear and the dog-clutch A on middling speed driven gear are positioned at the two ends of square key, by two ends, low speed driven gear and the output shaft gear with dog-clutch B is assembled together described square key, the two ends of described square key are provided with step and with annulus, push down respectively, shift fork is clamped low speed driven gear from two sides.
On described boss, have two place's V-shaped grooves, steel ball drops in the V-shaped groove on the boss of shift fork termination under the effect of spring.
Described eccentric positioning sleeve is axially installed with steel ball, spring, and holding screw has three place's pits on the imperfect ring flange of axle sleeve, and steel ball drops in pit under the effect of spring.
Described control lever shaft is processed with breach with the section of cooperation of axle sleeve.
Described axle sleeve is arranged on gearbox body by screw, and between the ring flange on axle sleeve and disk, leaves the space that facilitates screw to install.
The present invention has the following advantages: gear speed change accurate stable of the present invention, and be provided with two place's steel ball speed change locking devices, thereby can there is not phenomenon out of supply in speed changer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A expanded view of Fig. 1;
Fig. 3 is that the B of Fig. 1 is to C-C view;
Fig. 4 is the schematic diagram of axle sleeve;
Fig. 5 is the left view of axle sleeve;
In figure, 1-casing, 2-case lid, 3-motor, 4-motor gear, 5-first order driven gear, 6-first order driven shaft, 7-second level driving shaft, 8-high speed third wheel, 9-middling speed driving wheel, 10-low speed driving wheel, 11-output gear shaft, 12-high speed driven gear, 13-middling speed driven gear, 14-low speed driven gear, 15-dog-clutch A, 16-dog-clutch B, 17-square key, 18-annulus, 19-shift fork, the 20-axis of guide, 21-pit, 22-rectangular channel, 23-boss, 24-V shape groove, 25-rocking arm, 26-back-up ring, 27-control lever shaft, 28-disk, 29-axle sleeve, 30-pin, 31-handle set, 32-breach, 33-ring flange, the eccentric positioning sleeve of 34-, 35-gear change hand lever.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Figure 1, a kind of die head threading machine gear, it comprises gearbox body 1 and is arranged on the case lid 2 on gearbox body 1, in described casing 1, be provided with transmission mechanism and the shift fork gear of realizing transmission mechanism speed change, it is characterized in that: described shift fork gear comprises shift fork 19 and rocking arm 25, the centre of described shift fork 19 offers an axis hole, in axis hole, be set with an axis of guide 20, the axis of guide 20 is slidably matched by key and shift fork 19, the two ends of the described axis of guide 20 are arranged on gearbox body 1 and case lid 2, wherein one end is fixed with holding screw, on a termination of described shift fork 19, be provided with the boss 23 of rectangle, on axle head on described rocking arm 25, offer a rectangular channel 22, boss 23 coordinates with rectangular channel 22, in the axle head of described rocking arm 25, offer a screwed hole, steel ball is installed in screwed hole from left to right successively, spring, holding screw, the axle head of rocking arm 25 is used back-up ring 26 fixing, in the hole of the other end of rocking arm 25, pass control lever shaft 27 and be fixedly connected with key, described control lever shaft 27 is also through being arranged on the axle sleeve 29 on gearbox body 1, as shown in Figure 4, the centre of described axle sleeve 29 is provided with disk with holes 28, disk 28 is fixed by screws on gearbox body 1, the other end of described axle sleeve 29 is provided with incomplete ring flange 33, described ring flange 33 is glued with an eccentric positioning sleeve 34, described control lever shaft 27 is through eccentric positioning sleeve 34, and be connected with control lever shaft 27 with pin 30, control lever shaft 27 is processed with breach 32 with the section of cooperation of axle sleeve 29, the other end of described control lever shaft 27 is provided with one handle seat 31 by key and screw, gear change hand lever 35 is installed on handle set 31.
In the present embodiment, as shown in Figure 2, described transmission mechanism comprises motor 3, motor gear 4, first order driven shaft 6, second level driving shaft 7 and output gear shaft 11, on described first order driven shaft 6, be set with first order driven gear 5, described first order driven gear 5 coordinates with motor gear 4, on described second level driving shaft 7, high speed third wheel 8 is installed, middling speed driving wheel 9, low speed driving wheel 10, described low speed driving wheel 10 is between high speed third wheel 8 and middling speed driving wheel 9, bearing is equipped with at the two ends of described second level driven shaft 7, bearing is arranged on gearbox body 1 and case lid 2, on described output gear shaft 11, high speed driven gear 12 is installed, middling speed driven gear 13, low speed driven gear 14, wherein low speed driven gear 14 is between high speed driven gear 12 and middling speed driven gear 13, bearing is equipped with on the both sides of described output gear shaft 11, output shaft gear 11 is arranged on gearbox body 1 and case lid 2 by bearing.
Further in order to realize stable drive, described high speed driven gear 12 and middling speed driven gear 13 are free gear, and high speed driven gear 12 and middling speed driven gear 13 are provided with dog-clutch A15 near the end face of low speed driven gear 14 one end, low speed driven gear 14 both ends of the surface are provided with dog-clutch B16, on described output shaft gear 11, be provided with a square key 17, dog-clutch A15 on described high speed driven gear 12 and the dog-clutch A15 on middling speed driven gear 13 are positioned at the two ends of square key 17, by two ends, the low speed driven gear 14 with dog-clutch B16 is assembled together with output shaft gear 11 described square key 17, the two ends of described square key 17 are provided with step and with annulus 18, push down respectively, shift fork 19 is clamped low speed driven gear 14 from two sides.
In the present embodiment, as shown in Figure 3, on boss 23, there are two place's V-shaped grooves 24, steel ball drops in the V-shaped groove 24 on shift fork 19 termination boss 23 under the effect of spring, thereby play the effect of locking gear, make speed changer have for the first time locking, because the sliding space of 19 pairs of low speed driven gears 14 of shift fork is to align installation, when speed change mediates gear, steel ball drops in the V-shaped groove 24 of top, when speed change during in both sides gear steel ball all drop in following V-shaped groove 24.
In the present embodiment, as shown in Figure 5, in order to realize the locking for the second time of speed changer, described eccentric positioning sleeve 34 is axially installed with steel ball, spring, holding screw, on the imperfect ring flange 33 of axle sleeve 29, there are three place's pits 21, steel ball drops in pit 21 under the effect of spring, and due to the rocking of control lever shaft 27, beat, being locked in for the first time in speed changer do not have any sensation on gear change hand lever 35, this is very unfavorable to operation, can not feel whether speed change puts in place, have after locking for the second time, at gear change hand lever, 35 places just have the sensation putting in place.
In the present embodiment, axle sleeve 29 is to be arranged on gearbox body 1 by screw, in order to facilitate the installation of screw and to reduce the size of disk 28, between ring flange 33 on described axle sleeve 29 and disk 28, leave the space that facilitates screw to install, screw just can axial being arranged on axle sleeve 29 on gearbox body 1 in this space like this, dwindled further the size of decelerator.
The present invention is in order to realize speed change accurate stable, and speed changer problem out of supply can not occur, and realizes in an embodiment by following three steps:
One, shift fork 19 location: be provided with the axis hole with keyway in shift fork 19, axis hole inner sleeve has the axis of guide 20, the two ends of the axis of guide 20 are arranged on gearbox body 1 and case lid 2, wherein one end is fixed with holding screw, shift fork 19 can move in fixing orientation like this, and can make shift fork 19 align and clamp low speed driven gear 14, realize the location of shift fork 19
Two, shift fork locks for the first time: the boss 23 that is provided with rectangle on a termination of shift fork 19, on axle head on described rocking arm 25, offer a rectangular channel 22, boss 23 coordinates with rectangular channel 22, in the axle head of described rocking arm 25, offer a screwed hole, steel ball is installed in screwed hole from left to right successively, spring, holding screw, the axle head of rocking arm 25 is used back-up ring 26 fixing, on boss 23, there are two V-shaped grooves 24, steel ball drops in V-shaped groove 24 by the effect of spring, play the effect of locking gear, so just realized the primary locking of shift fork, because the sliding space of 19 pairs of low speed driven gears 14 of shift fork is to align installation, when speed change mediates gear, steel ball drops in the V-shaped groove 24 of top, when speed change during in both sides gear steel ball all drop in following V-shaped groove 24.
Three, shift fork locks for the second time: eccentric positioning sleeve 34 is provided with steel ball vertically, spring, holding screw has three place's pits 21 on the imperfect ring flange 33 of axle sleeve 29, steel ball drops in pit 21 under the effect of spring, has so just realized the locking for the second time of shift fork.
The course of work of the present invention is as follows: opening power, motor 3 is rotated, speed changer running, according to need of work, adjust the output speed of speed changer, hold gear change hand lever 35 and make its rotation, gear change hand lever 35 drives handle set 31, control lever shaft 27 and rocking arm 25 rotate, rectangular channel 22 on the axle head of rocking arm 25 coordinates with the boss 23 on shift fork 19, drive shift fork 19 to slide vertically on the axis of guide 20, shift fork 19 is clamped low speed driven gear 14 gear different from three and is meshed to obtain three different output speeds, the high speed of speed changer and middling speed are that the dog-clutch A15 engagement by the dog-clutch B16 on low speed driven gear 14 two sides and high speed driven gear 12 and middling speed driven gear 13 realizes, and low speed is low speed driven gear 14 and directly engagement realization of low speed driving wheel 10, when speed changer low cruise, high speed driven gear 12 and middling speed driven gear 13 are all at dry running, in speed-change process, rocking arm 25 circles together with axle head, by the rectangular channel 22 on axle head, coordinate with the rectangular boss 23 on shift fork 19, circular motion is converted into the axially-movable of shift fork 19 on the axis of guide 20, between the rectangular boss 23 on the rectangular channel on axle head 22 and shift fork 19, be sliding relation.
Claims (7)
1. a die head threading machine gear, it comprises gearbox body (1) and is arranged on the case lid (2) on gearbox body (1), in described casing (1), be provided with transmission mechanism and the shift fork gear of realizing transmission mechanism speed change, it is characterized in that: described shift fork gear comprises shift fork (19) and rocking arm (25), the centre of described shift fork (19) offers an axis hole, in axis hole, be set with an axis of guide (20), the axis of guide (20) is slidably matched by key and shift fork (19), the two ends of the described axis of guide (20) are arranged on gearbox body (1) and case lid (2), wherein one end is fixed with holding screw, on a termination of described shift fork (19), be provided with the boss (23) of rectangle, on axle head on described rocking arm (25), offer a rectangular channel (22), boss (23) coordinates with rectangular channel (22), in the axle head of described rocking arm (25), offer a screwed hole, steel ball is installed in screwed hole from left to right successively, spring, holding screw, the axle head of rocking arm (25) is used back-up ring (26) fixing, in the hole of the other end of rocking arm (25), pass control lever shaft (27) and be fixedly connected with key, described control lever shaft (27) is also through being arranged on the axle sleeve (29) on gearbox body (1), the centre of described axle sleeve (29) is provided with disk with holes (28), disk (28) is fixed by screws on gearbox body 1, the other end of described axle sleeve (29) is provided with incomplete ring flange (33), described ring flange (33) is glued with an eccentric positioning sleeve (34), described control lever shaft (27) is through eccentric positioning sleeve (34), and be connected with control lever shaft (27) with pin (30), the other end of described control lever shaft (27) is provided with one handle seat (31) by key and screw, gear change hand lever (35) is installed on handle set (31).
2. a kind of die head threading machine gear according to claim 1, it is characterized in that: described transmission mechanism comprises motor (3), motor gear (4), first order driven shaft (6), second level driving shaft (7) and output gear shaft (11), on described first order driven shaft (6), be set with first order driven gear (5), described first order driven gear (5) coordinates with motor gear (4), on described second level driving shaft (7), high speed third wheel (8) is installed, middling speed driving wheel (9), low speed driving wheel (10), described low speed driving wheel (10) is positioned between high speed third wheel (8) and middling speed driving wheel (9), bearing is equipped with at the two ends of described second level driven shaft (7), bearing is arranged on gearbox body (1) and case lid (2), high speed driven gear (12) is installed on described output gear shaft (11), middling speed driven gear (13), low speed driven gear (14), wherein low speed driven gear (14) is positioned between high speed driven gear (12) and middling speed driven gear (13), bearing is equipped with on the both sides of described output gear shaft (11), output shaft gear (11) is arranged on gearbox body (1) and case lid (2) by bearing.
3. a kind of die head threading machine gear according to claim 2, it is characterized in that: described high speed driven gear (12) and middling speed driven gear (13) are free gear, and high speed driven gear (12) and middling speed driven gear (13) are provided with dog-clutch A (15) near the end face of low speed driven gear (14) one end, low speed driven gear (14) both ends of the surface are provided with dog-clutch B (16), on described output shaft gear (11), be provided with a square key (17), dog-clutch A(15 on described high speed driven gear (12)) the dog-clutch A(15 and on middling speed driven gear (13)) be positioned at the two ends of square key (17), described square key (17) by two ends with dog-clutch B(16) low speed driven gear (14) and output shaft gear (11) be assembled together, the two ends of described square key (17) are provided with step and use respectively annulus (18) to push down, shift fork (19) is clamped low speed driven gear (14) from two sides.
4. a kind of die head threading machine gear according to claim 1, is characterized in that: on described boss (23), have two place's V-shaped grooves (24), steel ball drops in the V-shaped groove (24) on shift fork (9) termination boss (23) under the effect of spring.
5. a kind of die head threading machine gear according to claim 5, it is characterized in that: described eccentric positioning sleeve (34) is axially installed with steel ball, spring, holding screw, on the imperfect ring flange (33) of axle sleeve (29), have three place's pits (21), steel ball drops in pit (21) under the effect of spring.
6. a kind of die head threading machine gear according to claim 1, is characterized in that: described control lever shaft (27) is processed with breach (32) with the section of cooperation of axle sleeve (29).
7. a kind of die head threading machine gear according to claim 1, it is characterized in that: it is upper that described axle sleeve (29) is arranged on gearbox body (1) by screw, and between the ring flange (33) on axle sleeve (29) and disk (28), leave the space that facilitates screw to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303970.9A CN104070398B (en) | 2014-06-30 | 2014-06-30 | A kind of die head threading machine gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303970.9A CN104070398B (en) | 2014-06-30 | 2014-06-30 | A kind of die head threading machine gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104070398A true CN104070398A (en) | 2014-10-01 |
| CN104070398B CN104070398B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410303970.9A Expired - Fee Related CN104070398B (en) | 2014-06-30 | 2014-06-30 | A kind of die head threading machine gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104070398B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3089413A (en) * | 1961-06-12 | 1963-05-14 | Soroban Engineering Inc | Medium-speed serial printer |
| CN2412510Y (en) * | 2000-01-31 | 2001-01-03 | 番禺市力丰食品机械厂 | Variable-speed gear of food stirring machine |
| CN2608764Y (en) * | 2003-04-10 | 2004-03-31 | 刘庆广 | Mechanical gear shifting street roller gear box having synchronizer |
| CN201833218U (en) * | 2010-09-26 | 2011-05-18 | 柳品法 | Lathe handle |
| CN202556125U (en) * | 2012-05-09 | 2012-11-28 | 山东威达重工股份有限公司 | Sequential speed change mechanism |
| CN203973261U (en) * | 2014-06-30 | 2014-12-03 | 成都中电锦江信息产业有限公司 | A kind of die head threading machine gear |
-
2014
- 2014-06-30 CN CN201410303970.9A patent/CN104070398B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3089413A (en) * | 1961-06-12 | 1963-05-14 | Soroban Engineering Inc | Medium-speed serial printer |
| CN2412510Y (en) * | 2000-01-31 | 2001-01-03 | 番禺市力丰食品机械厂 | Variable-speed gear of food stirring machine |
| CN2608764Y (en) * | 2003-04-10 | 2004-03-31 | 刘庆广 | Mechanical gear shifting street roller gear box having synchronizer |
| CN201833218U (en) * | 2010-09-26 | 2011-05-18 | 柳品法 | Lathe handle |
| CN202556125U (en) * | 2012-05-09 | 2012-11-28 | 山东威达重工股份有限公司 | Sequential speed change mechanism |
| CN203973261U (en) * | 2014-06-30 | 2014-12-03 | 成都中电锦江信息产业有限公司 | A kind of die head threading machine gear |
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| Publication number | Publication date |
|---|---|
| CN104070398B (en) | 2016-06-22 |
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Granted publication date: 20160622 Termination date: 20190630 |