CN108679198A - The device of wear compensation of cam drive - Google Patents
The device of wear compensation of cam drive Download PDFInfo
- Publication number
- CN108679198A CN108679198A CN201810594935.5A CN201810594935A CN108679198A CN 108679198 A CN108679198 A CN 108679198A CN 201810594935 A CN201810594935 A CN 201810594935A CN 108679198 A CN108679198 A CN 108679198A
- Authority
- CN
- China
- Prior art keywords
- cam
- clast
- filter cloth
- grease channel
- follower lever
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
- F16H55/24—Special devices for taking up backlash
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses the device of wear compensation of cam drive, including body, body is equipped with driving shaft, driving shaft is equipped with cam, pilot hole is provided on body, pilot hole sliding is provided with follower lever, follower lever bottom is bonded with cam, bulge loop is provided on follower lever, the first spring is provided between bulge loop and body, the closing vessel for surrounding cam and follower lever bottom and the first spring is provided on body, closing vessel bottom is provided with grease channel, grease channel connects nozzle, pump is provided on grease channel, clast detection device is additionally provided on grease channel, driving shaft is connected with driving mechanism, driving mechanism is driven by linear actuating device and is lifted, control device is provided in body.The device can carry out wear extent compensation automatically when cam is worn.
Description
Technical field
The invention belongs to frame for movement technical field, the specifically device of wear compensation of cam drive.
Background technology
Cam mechanism is by cam, the higher pair mechanism of three basic building blocks of driven member and rack composition.Cam is a tool
There are the component of curved profile or groove, generally driving link, makees constant speed rotary motion or linear reciprocating motion.Cam mechanism is extensive
Ground is applied to the fields such as light industry, weaving, food, communications and transportation, machine driving.The displacement of driven member, speed and acceleration are necessary
Strictly change according to predetermined rule, especially when driving link makees continuous movement and driven member must make intermittent movement, then to adopt
It is the easiest with cam mechanism.The characteristics of motion of cam follower depends on the contour line of cam or the shape of groove, and cam can
It is reciprocal linear motion by continuous convert rotational motion, the complicated characteristics of motion may be implemented.
Cam and driven member can all be gradually worn out during cam mechanism is run, and lead to the transmission of cam and driven member
Position occurs gradually to change, and transmission accuracy is caused to decline, and influences complete machine operation.Traditional cam mechanism is when using one section
Between be not achieved the cam and its driving member for having to replace abrasion when required precision, and machine dismounting is got up all inconvenient, consumption
Take a large amount of disassembly and assembly time, and needs to go to check often.
Invention content
The present invention is in view of the shortcomings of the prior art, provide the device of wear compensation of cam drive, which can be convex
Wheel carries out wear extent compensation automatically when wearing, and to keep transmission accuracy, prolongs the service life, does not need frequent dismounting
Replace cam.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：The mill of cam drive
Compensation device, including body are damaged, the body is equipped with driving shaft, and the driving shaft is equipped with cam, is arranged on the body
There is pilot hole, pilot hole sliding is provided with follower lever, the follower lever bottom is bonded with the cam, described driven
It is provided with bulge loop on bar, the first spring is provided between the bulge loop and the body, being provided on the body will be described convex
The closing vessel surrounded with the follower lever bottom and first spring is taken turns, lubricating oil is provided in the closing vessel,
The nozzle of the cam will be directed at by being provided in the closing vessel, and the closing vessel bottom is provided with grease channel, institute
It states grease channel and connects the nozzle, be provided with pump on the grease channel, be additionally provided on the grease channel broken
Consider detection device to be worth doing, the clast detection device includes the shell that middle part has sense channel, is fixedly installed in the sense channel
There is middle part that there is the spring positioning seat of first through hole, the spring positioning seat is fixedly connected with the upper end of second spring, and described the
The lower end of two springs is fixedly connected with middle part, and there is the sliding seat of the second through-hole, the sliding seat both sides to be provided with guide rod, institute
It states sense channel side wall and is provided with guide chute, rotated on the guide rod and be provided with turnover disc of the middle part with third through-hole,
The turnover disc is rotatablely connected with the guide rod by shaft, and described shaft one end is provided with several first magnetic patch, and described
The first filter cloth is provided in three through-holes, the bottom of the guide chute is provided with the wide diameter portion for turnover disc overturning, described
Wide diameter portion bottom is equipped with electromagnet, and the guide rod bottom end is provided with the first iron block, and overturning electricity is provided on the outside of the wide diameter portion
Machine is provided with the second magnetic patch for coordinating Magnetic drives with several first magnetic patch, the inspection on the motor shaft of the upset motor
It surveys in channel and is provided with range sensor, the grease channel is connected with clast recycling after the clast detection device
Case, horizontal partition is equipped with the second filter cloth in the clast recycling bins, the import of the grease channel in the clast recycling bins
Positioned at the top of second filter cloth, the outlet of the grease channel is positioned at second filter cloth in the clast recycling bins
Lower section, the lubricating oil liquid level in the clast recycling bins are less than second filter cloth, and the driving shaft is connected with driving mechanism, institute
It states driving mechanism to be set on hoistable platform, the hoistable platform is slideably positioned on guide holder, and the hoistable platform bottom is logical
Linear actuating device control height is crossed, the closing vessel side is provided with the waist hole for driving shaft lifting, the active
It is provided on axis by the closed sealing plate of the waist hole, control device is provided in the body, the control device connects institute
State range sensor, linear actuating device, the upset motor, the electromagnet and the pump.This kind of cam drive
Device of wear compensation when in use nozzle ceaselessly to cam spray lubricating oil, reduce the abrasion of cam, spray lubricating oil
Cam is washed away while lubrication, the clast under being worn on cam and drive link is flushed in the lubricating oil of lower section,
Clast is brought in sense channel and accumulates on the first filter cloth during pump conveying lubricating oil, in the mistake that clast gradually increases
The logical oily effect of Cheng Zhong, the first filter cloth taper into, and the pressure that the first filter cloth is subject to gradually increases, and sliding seat gradually moves down, directly
To the setting value for being moved to range sensor, range sensor sends out signal to control device, is driven and is risen by linear actuating device
It drops platform to rise, realizes the compensation of wear extent；The first iron block is sucked in the electromagnet energization of control device control simultaneously, and control pump stops
Operation, and control upset motor rotation and drive turnover disc overturning 180 degree, due to turnover disc before turnover disc slides into wide diameter portion
It is bonded with sense channel side, there is turnover disc certain thickness can not overturn, and the diameter of wide diameter portion is more than top
The diameter of sense channel, after turnover disc overturning, control device starts pump and the clast on the first filter cloth is flushed to clast time
Case is received, during rinsing out clast, sliding seat gradually moves up, and reaching clast detection device can recycle.
In above-mentioned technical proposal, it is preferred that sliding slot below the wide diameter portion, on the sliding slot sliding be provided with sliding branch
Frame, the sliding support periphery are provided with the second iron block coordinated with the electromagnet, setting are rotated in the middle part of the sliding support
Have impeller, brush be provided on the impeller, when the sliding support is attracted to the sliding slot upper end, the brush with it is described
First filter cloth is bonded.Using the structure during electromagnet is powered sliding support also due to electromagnet attraction and on
It rises so that brush is bonded with the lower of the first filter cloth, since brush is the soft rotation that can't influence turnover disc, is opened in pump
When, since the flowing impeller of lubricating oil rotates, also brush is driven to scrub the first filter cloth, so that broken on the first filter cloth
Bits can be brushed off quickly.
In above-mentioned technical proposal, it is preferred that the follower lever bottom end is provided with idler wheel.Using the structure make rotating bar with
Frictional force between cam reduces, and reduces abrasion, prolongs the service life.
In above-mentioned technical proposal, it is preferred that the closing vessel bottom is to recessed at the grease channel.Using the knot
Structure is more easy to flow in sense channel after preventing clast from sinking.
Compared with prior art, the present invention having the advantages that：The device of wear compensation of this kind of cam drive
Nozzle ceaselessly sprays lubricating oil to cam when in use, the abrasion of cam is reduced, to convex while spraying oil lubrication
Wheel is washed away, and the clast under being worn on cam and drive link is flushed in the lubricating oil of lower section, in pump conveying lubricating oil
Clast is brought in sense channel and accumulates on the first filter cloth in the process, during clast gradually increases, the first filter cloth
Logical oily effect taper into, the pressure that the first filter cloth is subject to gradually increases, and sliding seat gradually moves down, and is passed until being moved to distance
The setting value of sensor, range sensor send out signal to control device, drive hoistable platform to rise by linear actuating device, realize
The compensation of wear extent；The first iron block is sucked in the electromagnet energization of control device control simultaneously, and control pump is out of service, and controls overturning
Motor rotation drives turnover disc to overturn 180 degree, due to turnover disc and sense channel side before turnover disc slides into wide diameter portion
It is fitting, there is turnover disc certain thickness can not overturn, and the diameter of wide diameter portion is more than the diameter of the sense channel of top,
After turnover disc overturning, control device starts pump and the clast on the first filter cloth is flushed to clast recycling bins, broken rinsing out
During bits, sliding seat gradually moves up, and reaching clast detection device can recycle.
Description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the schematic cross-sectional view of the embodiment of the present invention.
Fig. 3 is the schematic cross-sectional view of the clast detection device of the embodiment of the present invention.
Fig. 4 is the attachment structure schematic diagram of the sliding seat and turnover disc of the embodiment of the present invention.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：Referring to Fig. 1 to Fig. 4, cam
The device of wear compensation of transmission mechanism, including body 1, the body 1 are equipped with driving shaft 2, and the driving shaft 2 is equipped with cam
3, be provided with pilot hole 4 on the body 1, the sliding of the pilot hole 4 be provided with follower lever 5,5 bottom of the follower lever with
The cam 3 is bonded, and is provided with bulge loop 6 on the follower lever 5, the first spring is provided between the bulge loop 6 and the body 1
7, it is provided with the closing for surrounding the cam 3 and 5 bottom of the follower lever and first spring 7 on the body 1 and holds
Chamber 8 is provided with lubricating oil in the closing vessel 8, is provided in the closing vessel 8 and will be directed at the nozzle 9 of the cam 3,
8 bottom of closing vessel is provided with grease channel 10, and the grease channel 10 connects the nozzle 9, the lubricating oil
It is provided with pump 11 on channel 10, clast detection device 12, the clast detection device are additionally provided on the grease channel 10
12 include the shell 14 that middle part has sense channel 13, and middle part is fixedly installed in the sense channel 13 has first through hole 15
Spring positioning seat 16, the spring positioning seat 16 is fixedly connected with the upper end of second spring 17, under the second spring 17
End, which is fixedly connected with middle part, has the sliding seat 19 of the second through-hole 18, and 19 both sides of the sliding seat are provided with guide rod 20, described
13 side wall of sense channel is provided with guide chute 21, is rotated on the guide rod 20 and is provided with middle part turning over third through-hole 22
Turntable 23, the turnover disc 23 are rotatablely connected with the guide rod by shaft 24, and 24 one end of the shaft is provided with several
One magnetic patch 25 is provided with the first filter cloth 26 in the third through-hole 22, and the bottom of the guide chute 21, which is provided with described in confession, to be turned over
The wide diameter portion 27 that turntable 23 is overturn, 27 bottom of the wide diameter portion are equipped with electromagnet 28, and 20 bottom end of the guide rod is provided with first
Iron block 29, the outside of the wide diameter portion 27 are provided with upset motor 30, be provided on the motor shaft of the upset motor 30 with it is several
First magnetic patch 25 coordinates the second magnetic patch 31 of Magnetic drive, and range sensor 32 is provided in the sense channel 13, described
Grease channel 10 is connected with clast recycling bins 33 after the clast detection device 12, in the clast recycling bins 33 laterally
Segmentation is equipped with the second filter cloth 34, in the clast recycling bins 33 import of the grease channel 10 be located at second filter cloth 34
Top, the outlet of the grease channel 10 is described positioned at the lower section of second filter cloth 34 in the clast recycling bins 33
Lubricating oil liquid level in clast recycling bins 33 is less than second filter cloth 34, and the driving shaft 2 is connected with driving mechanism 35, described
Driving mechanism 35 is set on hoistable platform 36, and the hoistable platform 36 is slideably positioned on guide holder 37, the hoistable platform
36 bottoms control height by linear actuating device 38, and 8 side of the closing vessel is provided with the waist for the driving shaft 2 lifting
Hole 81 is provided with 81 closed sealing plate 39 of the waist hole on the driving shaft 2, and control device is provided in the body 1
40, the control device 40 connects the range sensor 32, linear actuating device 38, the upset motor 30, the electromagnetism
Iron 28 and the pump 11.Nozzle ceaselessly sprays profit to the device of wear compensation of this kind of cam drive to cam when in use
Lubricating oil reduces the abrasion of cam, is washed away to cam while spraying oil lubrication, will be ground on cam and drive link
Clast under damage is flushed in the lubricating oil of lower section, and clast is brought in sense channel and accumulates during pump conveys lubricating oil
On the first filter cloth, during clast gradually increases, the logical oily effect of the first filter cloth tapers into, what the first filter cloth was subject to
Pressure gradually increases, and sliding seat gradually moves down, until being moved to the setting value of range sensor, range sensor sends out signal extremely
Control device drives hoistable platform to rise, realizes the compensation of wear extent by linear actuating device；Control device controls electromagnetism simultaneously
The first iron block is sucked in Tie Tong electricity, and control pump is out of service, and controls upset motor rotation and drive turnover disc overturning 180 degree, is turning over
Turntable is slid into wide diameter portion and is bonded before with sense channel side due to turnover disc, and there is turnover disc certain thickness to be can not
Overturning, the diameter of wide diameter portion is more than the diameter of the sense channel of top, and after turnover disc overturning, control device starts pump will
Clast on first filter cloth is flushed to clast recycling bins, and during rinsing out clast, sliding seat gradually moves up, and reaches clast
Detection device can recycle.The amount of debris and the relation value of linear actuating device climb are experiment measured value, are being produced
When by experiment can measure make filter cloth be moved to range sensor obtain signal when amount of debris and single triggering distance pass
Hoistable platform needs the distance adjusted when sensor obtains signal, then further according to distance design linear actuating device single elongation
Distance, the linear actuating device in the present embodiment can be electric pushrod, can also be hydraulic push rod.Made using the device
The precision that can ensure cam drive after cam wear, prolongs the service life, and it is convex not need frequent disassembling, assembling and replacing
Wheel.
27 lower section sliding slot 41 of the wide diameter portion, on the sliding slot 41 sliding be provided with sliding support 42, the sliding support
42 peripheries are provided with the second iron block 43 coordinated with the electromagnet 28, and 42 middle part rotation of the sliding support is provided with impeller
44, brush 45 is provided on the impeller 44, when the sliding support 42 is attracted to 41 upper end of sliding slot, the brush 45
It is bonded with first filter cloth 26.Using the structure during electromagnet is powered sliding support also due to electromagnet suction
Draw and rise so that brush is bonded with the lower of the first filter cloth, since brush is the soft rotation that can't influence turnover disc, is being pumped
When unlatching, since the flowing impeller of lubricating oil rotates, also brush is driven to scrub the first filter cloth, so that on the first filter cloth
Clast can quickly be brushed off.
5 bottom end of the follower lever is provided with idler wheel 46.Using the structure frictional force between rotating bar and cam is subtracted
It is small, abrasion is reduced, is prolonged the service life.
8 bottom of closing vessel is to recessed at the grease channel 10.After preventing clast from sinking using the structure more
Easily it flow in sense channel.
Claims (4)
1. the device of wear compensation of cam drive, including body（1）, the body（1）It is equipped with driving shaft（2）, described
Driving shaft（2）It is equipped with cam（3）, the body（1）On be provided with pilot hole（4）, pass through the pilot hole（4）Sliding setting
There is follower lever（5）, the follower lever（5）Bottom and the cam（3）Fitting, the follower lever（5）On be provided with bulge loop（6）,
The bulge loop（6）With the body（1）Between be provided with the first spring（7）, it is characterised in that：The body（1）On be provided with
By the cam（3）With the follower lever（5）Bottom and first spring（7）The closing vessel of encirclement（8）, the closing
Vessel（8）Inside it is provided with lubricating oil, the closing vessel（8）The cam will be directed at by being inside provided with（3）Nozzle（9）, described
Close vessel（8）Bottom is provided with grease channel（10）, the grease channel（10）Connect the nozzle（9）, the profit
Oil pathway（10）On be provided with pump（11）, the grease channel（10）On be additionally provided with clast detection device（12）, described
Clast detection device（12）There is sense channel including middle part（13）Shell（14）, the sense channel（13）Interior fixed setting
There is middle part that there is first through hole（15）Spring positioning seat（16）, the spring positioning seat（16）With second spring（17）Upper end
It is fixedly connected, the second spring（17）Lower end be fixedly connected with middle part have the second through-hole（18）Sliding seat（19）, institute
State sliding seat（19）Both sides are provided with guide rod（20）, the sense channel（13）Side wall is provided with guide chute（21）, described
Guide rod（20）Upper rotation, which is provided with middle part, has third through-hole（22）Turnover disc（23）, the turnover disc（23）It is led with described
Pass through shaft to bar（24）Rotation connection, the shaft（24）One end is provided with several first magnetic patch（25）, the third through-hole
（22）Inside it is provided with the first filter cloth（26）, the guide chute（21）Bottom be provided with for the turnover disc（23）The expansion of overturning
Diameter portion（27）, the wide diameter portion（27）Bottom is equipped with electromagnet（28）, the guide rod（20）Bottom end is provided with the first iron block
（29）, the wide diameter portion（27）Outside is provided with upset motor（30）, the upset motor（30）Motor shaft on be provided with
Several first magnetic patch（25）Coordinate the second magnetic patch of Magnetic drive（31）, the sense channel（13）In be provided with Distance-sensing
Device（32）, the grease channel（10）By the clast detection device（12）After be connected with clast recycling bins（33）, described
Clast recycling bins（33）Interior horizontal partition is equipped with the second filter cloth（34）, the clast recycling bins（33）The interior grease channel
（10）Import be located at second filter cloth（34）Top, the clast recycling bins（33）The interior grease channel（10）'s
Outlet is located at second filter cloth（34）Lower section, the clast recycling bins（33）Interior lubricating oil liquid level is filtered less than described second
Cloth（34）, the driving shaft（2）It is connected with driving mechanism（35）, the driving mechanism（35）It is set to hoistable platform（36）On,
The hoistable platform（36）It is slideably positioned in guide holder（37）On, the hoistable platform（36）Bottom passes through linear actuating device
（38）Control height, the closing vessel（8）Side is provided with for the driving shaft（2）The waist hole of lifting（81）, the active
Axis（2）On be provided with the waist hole（81）Closed sealing plate（39）, the body（1）Inside it is provided with control device（40）,
The control device（40）Connect the range sensor（32）, linear actuating device（38）, the upset motor（30）, it is described
Electromagnet（28）And the pump（11）.
2. the device of wear compensation of cam drive as claimed in claim, it is characterised in that：The wide diameter portion（27）Under
Square sliding slot（41）, the sliding slot（41）Upper sliding is provided with sliding support（42）, the sliding support（42）Periphery be provided with
The electromagnet（28）Second iron block of cooperation（43）, the sliding support（42）Middle part rotation is provided with impeller（44）, described
Impeller（44）On be provided with brush（45）, when the sliding support（42）It is attracted to the sliding slot（41）When upper end, the brush
（45）With first filter cloth（26）Fitting.
3. the device of wear compensation of cam drive as described in claim 1, it is characterised in that：The follower lever（5）Bottom
End is provided with idler wheel（46）.
4. the device of wear compensation of cam drive as described in claim 1, it is characterised in that：The closing vessel（8）
Bottom is to the grease channel（10）Locate recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594935.5A CN108679198A (en) | 2018-06-11 | 2018-06-11 | The device of wear compensation of cam drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594935.5A CN108679198A (en) | 2018-06-11 | 2018-06-11 | The device of wear compensation of cam drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108679198A true CN108679198A (en) | 2018-10-19 |
Family
ID=63810819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594935.5A Pending CN108679198A (en) | 2018-06-11 | 2018-06-11 | The device of wear compensation of cam drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679198A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716298A (en) * | 2021-08-16 | 2021-11-30 | 黄山富田精工智造股份有限公司 | Transmission steering mechanism |
| CN114249104A (en) * | 2022-01-14 | 2022-03-29 | 广东韶钢松山股份有限公司 | Lifting device and tapping machine lifting device |
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|---|---|---|---|---|
| CN102897584A (en) * | 2011-07-27 | 2013-01-30 | 上海耀科印刷机械有限公司 | Conjugate cam driving mechanism with error compensation function |
| JP5342605B2 (en) * | 2011-06-24 | 2013-11-13 | 日機装株式会社 | Non-pulsating pump |
| CN106065928A (en) * | 2016-06-29 | 2016-11-02 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism for ball screw assembly, journey error |
| CN106795780A (en) * | 2014-08-27 | 2017-05-31 | 蒂森克虏伯普利斯坦技术中心股份公司 | Camshaft adjuster for adjusting the position of at least one cam portion |
| CN207297773U (en) * | 2017-09-30 | 2018-05-01 | 四川工程职业技术学院 | A kind of quick compensator of main driving wheel |
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2018
- 2018-06-11 CN CN201810594935.5A patent/CN108679198A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5342605B2 (en) * | 2011-06-24 | 2013-11-13 | 日機装株式会社 | Non-pulsating pump |
| CN102897584A (en) * | 2011-07-27 | 2013-01-30 | 上海耀科印刷机械有限公司 | Conjugate cam driving mechanism with error compensation function |
| CN106795780A (en) * | 2014-08-27 | 2017-05-31 | 蒂森克虏伯普利斯坦技术中心股份公司 | Camshaft adjuster for adjusting the position of at least one cam portion |
| CN106065928A (en) * | 2016-06-29 | 2016-11-02 | 无锡康柏斯机械科技有限公司 | A kind of cam correction mechanism for ball screw assembly, journey error |
| CN207297773U (en) * | 2017-09-30 | 2018-05-01 | 四川工程职业技术学院 | A kind of quick compensator of main driving wheel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716298A (en) * | 2021-08-16 | 2021-11-30 | 黄山富田精工智造股份有限公司 | Transmission steering mechanism |
| CN114249104A (en) * | 2022-01-14 | 2022-03-29 | 广东韶钢松山股份有限公司 | Lifting device and tapping machine lifting device |
| CN114249104B (en) * | 2022-01-14 | 2023-10-20 | 广东韶钢松山股份有限公司 | Lifting device of tapping machine |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
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