CN208041107U - A kind of wear-resisting walking mechanism of the planetary gear of planet row - Google Patents

A kind of wear-resisting walking mechanism of the planetary gear of planet row Download PDF

Info

Publication number
CN208041107U
CN208041107U CN201820030796.9U CN201820030796U CN208041107U CN 208041107 U CN208041107 U CN 208041107U CN 201820030796 U CN201820030796 U CN 201820030796U CN 208041107 U CN208041107 U CN 208041107U
Authority
CN
China
Prior art keywords
fixedly connected
planetary gear
planet carrier
wall
shell
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.)
Expired - Fee Related
Application number
CN201820030796.9U
Other languages
Chinese (zh)
Inventor
王冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201820030796.9U priority Critical patent/CN208041107U/en
Application granted granted Critical
Publication of CN208041107U publication Critical patent/CN208041107U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Retarders (AREA)

Abstract

The utility model discloses a kind of wear-resisting walking mechanisms of the planetary gear of planet row, including planet carrier, the upper surface of the planet carrier offers through-hole, the planet carrier is rotatably connected to wheel shaft by through-hole, surface on the wheel shaft close to middle part is fixedly connected with planetary gear, the planetary gear upper and lower surface has been fixedly connected with alloy gasket, the inner wall of close planetary gear opens up fluted on the planet carrier, the planet carrier is fixedly connected with metal gasket by groove, the surface of the metal gasket opens up fluted, the metal gasket is fixedly connected with locking piece by groove, the bottom of the locking piece is fixedly connected with the inner wall of planet carrier.The utility model solves in long-term use by being used cooperatively between above structure, metal caul can gradually wear out consumption, it is therefore desirable to periodically replaced, and the dismounting of metal caul is not convenient enough in said program, reduce working efficiency, to use make troubles the problem of.

Description

A kind of wear-resisting walking mechanism of the planetary gear of planet row
Technical field
The utility model is related to automobile-used planet row technical field, specially a kind of wear-resisting traveling machine of the planetary gear of planet row Structure.
Background technology
Subsidy, encouragement and support of China's relevant policies to new-energy automobile in recent years, also promoting vehicle enterprise to enter one after another should Field, faces technical bottleneck, and the volume production plan and marketing of automobile vendor also seem that extremely with caution market reaction is not existing always Effectively increase, in contrast, plug-in mixes motor-car type and efficiently solves the problems, such as the course continuation mileage of pure electric automobile, and by traditional power System is combined together with pure electric vehicle dynamical system, compensates for respective disadvantage, and the advantage of both sides is maximized, dynamic in mixing When Force system works, planetary gear can be rotated close to the medial surface of planet carrier, in planetary gear during running at high speed, planetary gear meeting Stress is very big and end wear is serious, this axial gap for allowing for planetary gear can constantly increase, to axial impact occur, production Raw operation abnormal sound, for this purpose, people have invented a kind of wear-resisting walking mechanism of the planetary gear of planet row, such as Chinese patent A kind of planetary gear wear mechanisms of planet row disclosed in CN206409621U, structure are that several rows are provided in planet carrier Star-wheel is worn on each planetary gear and is connected to planet wheel spindle, and the upper end of the planet wheel spindle is pierced by the upper surface of the planet carrier, every The upper and lower faces of a planetary gear are respectively arranged with alloy gasket, in the upper surface medial surface of the planet carrier and lower face Medial surface spacing ring, the comparable bimetallic backing plate of alloy gasket hardness, the bimetallic backing plate and planet is respectively set The alloy gasket on wheel fits, and in the high-speed rotation of planetary gear, makes alloy gasket and double gold on planet carrier Belong to backing plate to fit and rub, since the hardness of the two is suitable and finish is very high, to reduce the mill of planetary gear end face Damage, improves the wearability of planetary gear, ensure that the normal operation and precision of planet row, extend the service life of planet carrier, But in long-term use, metal caul can gradually wear out consumption, it is therefore desirable to periodically replaced, and metal in said program The dismounting of backing plate is not convenient enough, reduces working efficiency, makes troubles to using.
Utility model content
The purpose of this utility model is to provide a kind of wear-resisting walking mechanisms of the planetary gear of planet row, to metal in former scheme The dismounting of gasket is improved so that the dismounting of metal gasket is more convenient, solves in long-term use, metal caul Consumption can be gradually worn out, it is therefore desirable to periodically replaced, and the dismounting of metal caul is not convenient enough in said program, reduces Working efficiency, to use make troubles the problem of.
To achieve the above object, the utility model provides the following technical solutions:A kind of wear-resisting traveling of the planetary gear of planet row The upper surface of mechanism, including planet carrier, the planet carrier offers through-hole, and the planet carrier is rotatably connected to wheel by through-hole Axis, the surface on the wheel shaft close to middle part are fixedly connected with planetary gear, and the planetary gear upper and lower surface has been fixedly connected with conjunction Gold pad piece, opens up close to the inner wall of planetary gear on the planet carrier fluted, and the planet carrier is fixedly connected with gold by groove Belong to gasket, the surface of the metal gasket opens up fluted, and the metal gasket is fixedly connected with locking piece by groove, described The bottom of locking piece is fixedly connected with the inner wall of planet carrier.
The locking piece includes compressing member, and the lower surface of the compressing member is connected with shell, the following table of the shell Face is fixedly connected with the bottom of planet carrier inner wall, and the inner wall of the shell is fixedly connected with lifters, the top of the lifters It is flexibly connected with the lower surface of compressing member, the compressing member includes pressing plate, and the upper surface of the shell offers straight slot, the shell Body is flexibly connected by straight slot with the side of pressing plate, and the side of the pressing plate is rotatably connected to fixing axle, remote in the fixing axle One end of tripping plate is fixedly connected with the inner wall of shell, and the surface activity of the fixing axle is connected with resetting spring, the reset One end of spring is fixedly connected with the side of pressing plate, and the other end of the resetting spring is fixedly connected with the inner wall of shell, described Lifters include set bucket, and the bottom of the set bucket is fixedly connected with the bottom of inner walls, and the bottom for covering bucket offers logical Hole, the set bucket are rotatably connected to screw rod by through-hole, and face screw rod inner wall offers through-hole on the shell and planet carrier, institute It states the surface on screw rod close to bottom to pass through through-hole and be rotatablely connected with through-hole wall, close to the surface spiral shell at top on the screw rod Line is connected with threaded barrel, and the surface of the threaded barrel is flexibly connected with the inner wall of set bucket, the top of the threaded barrel and pressing plate Lower surface is flexibly connected, and is fixedly connected with restraining position ring block close to the surface of bottom on the screw rod, the lower surface of the spacing ring with Cover the bottom flexible connection of bucket inner wall.
Preferably, the quantity of the locking piece is two, and two locking pieces are symmetrical with the vertical centerline of metal gasket Setting.
Preferably, beam is fixedly connected with close to positive lower surface, on the pressing plate close to the back side on the pressing plate Lower surface offer anti-skid chequer.
Preferably, the quantity of the resetting spring is two, and two resetting springs are symmetrical with the vertical centerline of shell Setting.
Preferably, the bottom of the screw rod is fixedly connected with knob, and the surface of knob is fixedly connected with non-slip mat, described It is fixedly connected with stop collar close to the surface of bottom on screw rod, and the lower surface activity of the upper surface of stop collar and planet carrier connects It connects.
Preferably, it is fixedly connected with limited block close to the surface of bottom on the threaded barrel, and is opened up on the inner wall of set bucket There are limit sliding chutes compatible with limited block.
Compared with prior art, the beneficial effects of the utility model are as follows:The utility model makes metal by locking piece Locking is more secured while the dismounting of gasket is more convenient, by shell so that the inner wall of locking piece and planet carrier establishes company It connects, metal gasket is compressed by compressing member, by being used cooperatively between pressing plate, fixing axle, resetting spring and shell, Pressing plate can be rotated by center of rotation of fixing axle, and under the action of resetting spring, pressing plate is in unfolded state, to metal Gasket latch-up-free effect rotates screw rod so that threaded barrel by covering being used cooperatively between bucket, screw rod, threaded barrel and spacing ring There is rotation trend, under the obstruction of limited block, threaded barrel can not rotate, and can only carry out upper and lower displacement, when threaded barrel shifts up When, it contacts and squeezes close to positive lower surface on pressing plate so that pressing plate is rotated by center of rotation of fixing axle, pressing plate The upper lower surface close to the back side contacts and squeezes with the detent surface of metal gasket, is locked to metal gasket, in pressing plate In rotation process, resetting spring has saved bit by bit elastic potential energy, when threaded barrel is moved down, under the elastic force effect of compressed spring, and pressure Plate Automatic-expanding simultaneously unlocks metal gasket, and metal gasket can be replaced.Pass through being used cooperatively between above structure, solution It has determined in long-term use, metal caul can gradually wear out consumption, it is therefore desirable to periodically replaced, and metal in said program The dismounting of backing plate is not convenient enough, reduces working efficiency, to use make troubles the problem of.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the right view of the utility model locking piece;
Fig. 3 is the sectional view of the utility model shell right view;
Fig. 4 is the upward view of the utility model pressing plate;
Fig. 5 is the sectional view that the utility model covers bucket right view;
Fig. 6 is the vertical view of the utility model shell.
In figure:1- planet carriers, 2- wheel shafts, 3- planetary gears, 4- alloys gasket, 5- metal gaskets, 6- locking pieces, 7- are compressed Part, 8- shells, 9- lifters, 10- pressing plates, 11- fixing axles, 12- resetting springs, 13- set bucket, 14- screw rods, 15- threaded barrels, 16- spacing rings.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 to 6, the utility model provides a kind of technical solution:A kind of wear-resisting traveling machine of the planetary gear of planet row Structure, including planet carrier 1, planet carrier 1 play fixed supporting role, and the upper surface of planet carrier 1 offers through-hole, and planet carrier 1 passes through Through-hole is rotatably connected to wheel shaft 2, and wheel shaft 2 plays fixed function to planetary gear 3, is fixedly connected close to the surface at middle part on wheel shaft 2 It is that center of rotation is rotated with wheel shaft 2 to have planetary gear 3, planetary gear 3, power is transmitted, 3 upper and lower surface of planetary gear is solid Surely it is connected with alloy gasket 4, the inner wall on planet carrier 1 close to planetary gear 3 opens up fluted, and planet carrier 1, which passes through groove, to be fixed and connect It is connected to metal gasket 5, contacts surface and planet carrier 1 inner wall of the friction instead of planetary gear 3 with metal gasket 5 by alloy gasket 4 Friction, reduce the frictional dissipation of planetary gear 3 and planet carrier 1, the surface of metal gasket 5 opens up fluted, and metal gasket 5 is logical Cross groove and be fixedly connected with locking piece 6, the quantity of locking piece 6 is two, and two locking pieces 6 with metal gasket 5 it is vertical in Heart line is symmetrical arranged, and is symmetrical arranged on the gasket 5 of metal by two locking pieces 6 so that the stress of metal gasket 5 more adduction Reason is more stablized when locking, and the bottom of locking piece 6 is fixedly connected with the inner wall of planet carrier 1, makes metal gasket by locking piece 6 Locking is more secured while piece 5 dismounts more convenient.
Locking piece 6 includes compressing member 7, and compressing member 7 compresses metal gasket 5, the lower surface flexible connection of compressing member 7 There is shell 8, by shell 8 so that the inner wall of locking piece 6 and planet carrier 1 is established and connected, in the lower surface of shell 8 and planet carrier 1 The bottom of wall is fixedly connected, and the inner wall of shell 8 is fixedly connected with lifters 9, the lower surface at the top and compressing member 7 of lifters 9 Flexible connection, compressing member 7 include pressing plate 10, are contacted with the detent surface of metal gasket 5 close to the lower surface at the back side on pressing plate 10 And squeeze, metal gasket 5 is locked, in 10 rotation process of pressing plate, resetting spring 12 has saved bit by bit elastic potential energy, is inciting somebody to action When threaded barrel 15 moves down, under the elastic force effect of compressed spring 12,10 Automatic-expanding of pressing plate simultaneously unlocks metal gasket 5, metal Gasket 5 can be replaced, and beam is fixedly connected with close to positive lower surface on pressing plate 10, close to the back side on pressing plate 10 Lower surface offers anti-skid chequer, and the beam of pressing plate 10 is used to more stablize when contacting with threaded barrel 15, and anti-skid chequer opens up So that pressing plate 10, when with 5 contact squeeze of metal gasket, contact surface frictional force bigger, locking effect is more preferable, the upper surface of shell 8 Straight slot is offered, shell 8 is flexibly connected by straight slot with the side of pressing plate 10, and the side of pressing plate 10 is rotatably connected to fixing axle 11, one end far from pressing plate 10 in fixing axle 11 is fixedly connected with the inner wall of shell 8, and the surface activity of fixing axle 11, which is connected with, answers Position spring 12, being used cooperatively between pressing plate 10, fixing axle 11, resetting spring 12 and shell 8, pressing plate 10 can be with fixing axle 11 It is rotated for center of rotation, under the action of resetting spring 12, pressing plate 10 is in unfolded state, to 5 latch-up-free of metal gasket The quantity of effect, resetting spring 12 is two, and two resetting springs 12 are symmetrical arranged with the vertical centerline of shell 8, are passed through The setting of two resetting springs 12 so that the stress of pressing plate 10 more balances rationally, and the elastic force superposition of two resetting springs 12 Under, the reset feedback of pressing plate 10 is rapider, and one end of resetting spring 12 is fixedly connected with the side of pressing plate 10, resetting spring 12 The other end is fixedly connected with the inner wall of shell 8, and lifters 9 include set bucket 13, and the bottom for covering bucket 13 and the bottom of 8 inner wall of shell are solid The bottom of fixed connection, set bucket 13 offers through-hole, and set bucket 13 is rotatably connected to screw rod 14 by through-hole, and the bottom of screw rod 14 is fixed It is connected with knob, and the surface of knob is fixedly connected with non-slip mat, passes through the setting of knob so that the rotation of screw rod 14 is more square Just, and the setting of non-slip mat, more laborsaving when rotating screw rod 14, the surface on screw rod 14 close to bottom is fixedly connected with limit Set, and the upper surface of stop collar is flexibly connected with the lower surface of planet carrier 1, by the cooperation of stop collar and spacing ring 16, to spiral shell The upper and lower displacement of bar 14 is limited so that screw rod 14 is merely able to be turned within the scope of the limitation of stop collar and spacing ring 16 Dynamic, 14 inner wall of face screw rod offers through-hole on shell 8 and planet carrier 1, and through-hole is passed through simultaneously close to the surface of bottom on screw rod 14 It is rotatablely connected with through-hole wall, the thread surface on screw rod 14 close to top is connected with threaded barrel 15, by covering bucket 13, screw rod 14, being used cooperatively between threaded barrel 15 and spacing ring 16 rotates screw rod 14 so that threaded barrel 15 has rotation trend, is limiting Under the obstruction of block, threaded barrel 15 can not rotate, and can only carry out upper and lower displacement, when threaded barrel 15 shifts up, be leaned on on pressing plate 10 Nearly positive lower surface contacts and squeezes so that pressing plate 10 is that center of rotation is rotated with fixing axle 11, is leaned on threaded barrel 15 The surface of nearly bottom is fixedly connected with limited block, and offers limit sliding chutes compatible with limited block on the inner wall of set bucket 13, Pass through the setting of 15 upper limit position block of threaded barrel so that the rotation of threaded barrel 15 is limited, and is merely able to carry out upper and lower displacement, limited block In limit sliding chutes by movement so that the movement of threaded barrel 15 is more stablized, the surface of threaded barrel 15 and the inner wall activity of set bucket 13 connect It connects, the top of threaded barrel 15 is flexibly connected with the lower surface of pressing plate 10, and the surface of close bottom is fixedly connected limited on screw rod 14 Position ring 16, spacing ring 16 hinder moving down for screw rod 14, the lower surface of spacing ring 16 to be flexibly connected with the bottom of set 13 inner wall of bucket.
Operation principle:The wear-resisting walking mechanism of planetary gear of the planet row makes metal gasket when in use, by locking piece 6 Locking is more secured while 5 dismounting is more convenient, screw rod 14 is rotated, threaded barrel 15 has under the rotation of screw rod 14 Movement tendency, threaded barrel 15 is merely able to carry out upper and lower displacement under limited block obstruction, when threaded barrel 15 moves upwards, with pressing plate 10 contact and squeeze so that pressing plate 10 is that center of rotation is rotated with fixing axle 11, close to the lower surface at the back side on pressing plate 10 It contacts and squeezes with the surface of metal gasket 5, metal gasket 5 is made to be locked, screw rod 14 is inverted, under threaded barrel 15 It transfers from one place to another under escort except the extruding to pressing plate 10, under the action of resetting spring 12, pressing plate 10 is unfolded, and contacts the locking to metal gasket 5, makes Metal gasket 5 can carry out disassembling, assembling and replacing.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. the upper surface of a kind of wear-resisting walking mechanism of the planetary gear of planet row, including planet carrier (1), the planet carrier (1) opens up There are through-hole, the planet carrier (1) to be rotatably connected to wheel shaft (2) by through-hole, fixed close to the surface at middle part on the wheel shaft (2) It is connected with planetary gear (3), planetary gear (3) upper and lower surface has been fixedly connected with alloy gasket (4), on the planet carrier (1) Inner wall close to planetary gear (3) opens up fluted, and the planet carrier (1) is fixedly connected with metal gasket (5) by groove, described The surface of metal gasket (5) opens up fluted, it is characterised in that:The metal gasket (5) is fixedly connected with locking by groove The bottom of part (6), the locking piece (6) is fixedly connected with the inner wall of planet carrier (1);
The locking piece (6) includes compressing member (7), and the lower surface of the compressing member (7) is connected with shell (8), the shell The lower surface of body (8) is fixedly connected with the bottom of planet carrier (1) inner wall, and the inner wall of the shell (8) is fixedly connected with lifters (9), the top of the lifters (9) is flexibly connected with the lower surface of compressing member (7), and the compressing member (7) includes pressing plate (10), The upper surface of the shell (8) offers straight slot, and the shell (8) is flexibly connected by straight slot with the side of pressing plate (10), institute The side for stating pressing plate (10) is rotatably connected to fixing axle (11), one end far from pressing plate (10) and shell on the fixing axle (11) (8) inner wall is fixedly connected, and the surface activity of the fixing axle (11) is connected with resetting spring (12), the resetting spring (12) One end be fixedly connected with the side of pressing plate (10), the inner wall of the other end of the resetting spring (12) and shell (8), which is fixed, to be connected It connects, the lifters (9) include set bucket (13), and the bottom of the set bucket (13) is fixedly connected with the bottom of shell (8) inner wall, institute The bottom for stating set bucket (13) offers through-hole, and the set bucket (13) is rotatably connected to screw rod (14), the shell (8) by through-hole Through-hole is offered with face screw rod (14) inner wall on planet carrier (1), and through-hole is passed through close to the surface of bottom on the screw rod (14) And be rotatablely connected with through-hole wall, the thread surface on the screw rod (14) close to top is connected with threaded barrel (15), the spiral shell The surface of line bucket (15) is flexibly connected with the inner wall of set bucket (13), the lower surface at the top and pressing plate (10) of the threaded barrel (15) Flexible connection is fixedly connected with restraining position ring block (16) on the screw rod (14) close to the surface of bottom, under the spacing ring (16) Surface is flexibly connected with the bottom of set bucket (13) inner wall.
2. a kind of wear-resisting walking mechanism of planetary gear of planet row according to claim 1, it is characterised in that:The locking piece (6) quantity is two, and two locking pieces (6) are symmetrical arranged with the vertical centerline of metal gasket (5).
3. a kind of wear-resisting walking mechanism of planetary gear of planet row according to claim 1, it is characterised in that:The pressing plate (10) it is fixedly connected with beam close to positive lower surface on, is offered close to the lower surface at the back side on the pressing plate (10) anti- Sliding line.
4. a kind of wear-resisting walking mechanism of planetary gear of planet row according to claim 1, it is characterised in that:The reset bullet The quantity of spring (12) is two, and two resetting springs (12) are symmetrical arranged with the vertical centerline of shell (8).
5. a kind of wear-resisting walking mechanism of planetary gear of planet row according to claim 1, it is characterised in that:The screw rod (14) bottom is fixedly connected with knob, and the surface of knob is fixedly connected with non-slip mat, close to bottom on the screw rod (14) Surface be fixedly connected with stop collar, and the upper surface of stop collar is flexibly connected with the lower surface of planet carrier (1).
6. a kind of wear-resisting walking mechanism of planetary gear of planet row according to claim 1, it is characterised in that:The threaded barrel (15) it is fixedly connected with limited block close to the surface of bottom on, and is offered on the inner wall of set bucket (13) compatible with limited block Limit sliding chutes.
CN201820030796.9U 2018-01-09 2018-01-09 A kind of wear-resisting walking mechanism of the planetary gear of planet row Expired - Fee Related CN208041107U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820030796.9U CN208041107U (en) 2018-01-09 2018-01-09 A kind of wear-resisting walking mechanism of the planetary gear of planet row

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820030796.9U CN208041107U (en) 2018-01-09 2018-01-09 A kind of wear-resisting walking mechanism of the planetary gear of planet row

Publications (1)

Publication Number Publication Date
CN208041107U true CN208041107U (en) 2018-11-02

Family

ID=63956751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820030796.9U Expired - Fee Related CN208041107U (en) 2018-01-09 2018-01-09 A kind of wear-resisting walking mechanism of the planetary gear of planet row

Country Status (1)

Country Link
CN (1) CN208041107U (en)

Similar Documents

Publication Publication Date Title
CN207212964U (en) The driven gear assembly of intelligent ball machine
CN208041107U (en) A kind of wear-resisting walking mechanism of the planetary gear of planet row
CN207148719U (en) Easy-to-dismount computer cabinet
CN208323071U (en) A kind of grinding tool being conveniently replaceable
CN202106255U (en) Roll grinder rotary jacking block
CN209705226U (en) A kind of adjustable gear of reference diameter
CN208498033U (en) Clamping device is used in a kind of accounting office
CN1345633A (en) Rolling mill
CN208557018U (en) A kind of right angle watt groove grinding device
CN208643261U (en) A kind of tungsten powder production filter device may filter that impurity
CN205244262U (en) Mill adjusting device is thrown to planet gear type wheel
CN208442169U (en) A kind of spindle nose connector bracing means
CN209379777U (en) A kind of guide-post of die-set
CN204935227U (en) High speed pin machine feeding mechanism
CN201102178Y (en) Power tool
CN209396383U (en) A kind of horizontal plate shelf of novel unfolding mode
CN207005235U (en) A kind of travelling gear of replaceable teeth portion
CN209189506U (en) Main Drive of Rolling Mill universal shaft
CN204313861U (en) A kind of sensor rotating shaft for electronic throttle
CN216860934U (en) Drying track of manual printing drying platform
CN207375623U (en) Crane horizontal guiding mechanism
CN201293040Y (en) Multi-shaft articulated mechanism
CN2928785Y (en) Roller suspension type liquid forming conveyer chain belt
CN215205055U (en) Steering arm mechanism of agricultural machinery
CN201120443Y (en) Lever transfer structure for mechanical arm of multi-station cold heading machine

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: 20181102

Termination date: 20190109