CN103671761A - Synchronous drive mechanism of forward gear and backward gear of circulation type forward and backward turning and variable speed vacuum compressor - Google Patents

Synchronous drive mechanism of forward gear and backward gear of circulation type forward and backward turning and variable speed vacuum compressor Download PDF

Info

Publication number
CN103671761A
CN103671761A CN201310715005.8A CN201310715005A CN103671761A CN 103671761 A CN103671761 A CN 103671761A CN 201310715005 A CN201310715005 A CN 201310715005A CN 103671761 A CN103671761 A CN 103671761A
Authority
CN
China
Prior art keywords
gear
transition
transition gear
axle
reverse
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.)
Granted
Application number
CN201310715005.8A
Other languages
Chinese (zh)
Other versions
CN103671761B (en
Inventor
王久祥
张庆鹏
王海涛
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.)
Locating in Dalian Heng Machinery Manufacturing Co. Ltd.
Original Assignee
DALIAN JINGGONG MACHINERY EQUIPMENT Co Ltd
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 DALIAN JINGGONG MACHINERY EQUIPMENT Co Ltd filed Critical DALIAN JINGGONG MACHINERY EQUIPMENT Co Ltd
Priority to CN201310715005.8A priority Critical patent/CN103671761B/en
Publication of CN103671761A publication Critical patent/CN103671761A/en
Application granted granted Critical
Publication of CN103671761B publication Critical patent/CN103671761B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/14Gearings for reversal only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/029Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention belongs to a vacuum compressor, and particularly relates to a synchronous drive mechanism of a forward gear and a backward gear of a circulation type forward and backward turning and variable speed vacuum compressor. The synchronous drive mechanism comprises a transition gear shaft A of a reducing mechanism, and is characterized in that the bottom end of the transition gear shaft A is in key connection with a transition gear A, the transition gear A is meshed with an input gear, and the synchronous drive mechanism of the forward gear and the forward gear is installed at the top of the transition gear shaft A and is composed of a transition gear B, a shaft cover, a transition gear C, a transition gear shaft C and a transition gear support. The transition gear A is meshed with the input gear through the transition gear A and drives the transition gear B to achieve forward and backward synchronous driving of two turning gears A. The synchronous drive mechanism is reasonable in design and compact in structure, and under the condition of low rotation speed after speed reduction, the forward turning gear A and the backward turning gear A have the advantages of the small impact, stable and reliable transmission performance and the like.

Description

Forward and reverse gear synchronous driving mechanism of circulating positive and negative break-in speed change vacuum compressor
Technical field
The invention belongs to vacuum compressor, particularly a kind of forward and reverse gear synchronous driving mechanism of circulating positive and negative break-in speed change vacuum compressor.
Background technique
At present, in engineering goods, such as the mechanical transmission of reciprocating vacuum pump and reciprocal compressor, its structure mostly adopts motor, with the driving mechanism of transmission driving crank and eccentric wheel type.By adopting slide block and connecting rod to coordinate promotion piston to realize to-and-fro motion, owing to being subject to the restriction of the above-mentioned kind of drive, its cylinder body distribution form can only be V-type, fan type or twin-tub type in parallel.Due to bent axle and eccentric wheel transmission existence periodicity flex point or dead point---export the dead point that torque is " 0 "; During transmission, will inevitably cause vibrations and noise, and bent axle and eccentric gearing do not have reinforcement coefficient; So power consumption is just large, especially when compression ratio---when head pressure/incoming pressure is larger, power consumption is very uneconomic.This is also why toward trans vacuum pump and past trans compressor, to be the reason of autonomous device at present; And these are independently toward trans vacuum pump and independently many toward trans compressor both parts, not only Heavy Weight but also structure were not compact.In recent years, the problem existing in order to solve the mechanical transmission of above-mentioned reciprocating vacuum pump and reciprocal compressor, the vertical figure of people is large from utilizing power screw to have reinforcement coefficient, the accurate characteristic that operates steadily is set out, in conjunction with adopting elastic force to control the round reversing arrangement of leading screw, and researched and developed a kind of reciprocating screw vacuum compressor that the patent No. is ZL201110158356.4, its structure comprises by support, motor, band transmission, follower, back shaft, gear transmission reversing mechanism, hollow shaft, bearing support, hollow leading screw, screw, screw sleeve pipe, connecting sleeve, reversing bar, the electric transmission of the spiral reciprocating type that spring mechanism and jaw clutch form, the commutation of the reversing bar in the electric transmission of its spiral reciprocating type is rotated, drive is by cylinder body, piston, sealed joint pipe, Sealing first, middle separate space, Sealing second, front separate space, rear separate space, three-way type suction valve, three-way type outlet valve, middle three-way type outlet valve, middle three-way type suction valve, the vacuum compression device that total air escape pipe and total inlet pipe form, piston series connection group in vacuum compression dress, continuous past in cylinder body, return motion, realizing this vacuum compressor integrates and vacuumizes and compression function.Although the structure of the more above-mentioned reciprocating vacuum pump of this reciprocating screw vacuum compressor and reciprocal compressor, there is progress, but still there are some shortcoming and defect in its transmission device, topmost shortcoming is that its jaw clutch is easy to de-knot when normal work and its transmission device can not normally be worked under high-speed condition, has restricted vacuumizing with the efficiency of compression function of vacuum compressor and has improved, therefore, the shortcoming and defect existing for above-mentioned technology, the applicant has conceived a kind of circulating positive and negative break-in speed change vacuum compressor, this circulating positive and negative break-in speed change vacuum compressor is by support, motor and the motor drive component forming with transmission drive positive and negative break-in speed changing type transmission device, this positive and negative break-in speed changing type transmission device comprises speed reducer, forward and reverse gear synchronous driving mechanism, positive and negative deviator and speeder, wherein by forward and reverse gear synchronous driven unit, driven by change gear axle, a change gear, upper and lower axle sleeve, key is rolled in break-in, duckbilled key asembly, b change gear, upper and lower end cap, forward and reverse change gear mechanism that free wheel device and free wheel device cover form, this circulating positive and negative break-in speed change vacuum compressor is being grasped the transmission scheme of collection high speed → deceleration → break-in → speedup, through speed reducer and positive and negative break-in assembly, the high rotating speed of input is down to after the slow-speed of revolution and break-in, through speeder, slow-speed of revolution speedup is arrived again to the high rotating speed of output shaft, by the output shaft in positive and negative break-in speed changing type transmission device with high rotating speed drive piston series connection group in vacuum compression device constantly vacuum compression cylinder body past, return motion, realize the efficient function that vacuumizes with compress of this vacuum compressor, for this reason, require the forward and reverse gear synchronous driving mechanism in circulating positive and negative break-in speed change vacuum compressor, must there is compactness rational in infrastructure, the function that transmission performance is reliable and stable.Therefore, innovative development is applicable to a kind of forward and reverse gear synchronous driving mechanism of circulating positive and negative break-in speed change vacuum compressor, is very necessary.
Summary of the invention
The present invention is intended to the shortcoming and defect part existing in above-mentioned technology, grasping and making the output shaft of transmission device drive vacuum compression device to set out with high rotating speed, adopt the transmission device of the technological scheme of high speed → deceleration → break-in → speedup, and a kind of forward and reverse gear synchronous driving mechanism of circulating positive and negative break-in speed change vacuum compressor is provided.The features such as this forward and reverse gear synchronous driving mechanism is not only reasonable in design, and compact structure, under the slow-speed of revolution condition after deceleration, makes two forward and reverse a change gears have impact little, and transmission performance is reliable and stable.
The object of the invention is to adopt following technological scheme to realize: forward and reverse gear synchronous driving mechanism of described circulating positive and negative break-in speed change vacuum compressor, the A transition gear axle that comprises reducing gear, it is characterized in that: A transition gear axle bottom keyed jointing A transition gear, described A transition gear is meshed with input gear; The bottom of described A transition gear axle by bearings in deceleration box inner bottom surface, the top of A transition gear axle by bearings in gear box cover; In this A transition gear axle top, install forward and reverse gear synchronous driving mechanism; Described forward and reverse gear synchronous driving mechanism is comprised of B transition gear, axle sleeve, C transition gear, C transition gear axle and transition wheel support, keyed jointing B transition gear on A transition gear axle, one side of described B transition gear is meshed with a change gear of positive direction actuation, the opposite side of this B transition gear is meshed with C transition gear one side on C transition gear axle, and the opposite side of described C transition gear is meshed with a change gear of reverse direction actuation; One end of described C transition gear axle by bearings in gear box cover, the other end of C transition gear axle by bearings in the transition wheel support of gear box cover; Described transition wheel support is connected on gear box cover bottom surface; On described A transition gear and the A transition gear axle between B transition gear, install axle sleeve; By A transition gear, be meshed with input gear; By A transition gear, drive B transition gear, realize the forward and reverse synchronous driving of two a change gears.
Principle of the present invention and feature are described below:
The output shaft of transmission device of the present invention is intended to drive with high rotating speed the object of vacuum compression device, adopt the transmission device of the technological scheme of high speed → deceleration → break-in → speedup, the motor on support is by band transmission driving or directly by motor-driven positive and negative break-in speed changing type transmission device, its positive and negative break-in speed changing type transmission device is by the assembly that slows down, the gear assembly of positive and negative rotation, break-in mainshaft mechanism, forward and reverse side steering and speedup assembly form, wherein forward and reverse gear synchronous driving mechanism is by B transition gear, axle sleeve, C transition gear, C transition gear axle and transition wheel support form, B transition gear is meshed with a change gear of positive direction actuation, C transition gear is meshed with a change gear of reverse direction actuation, A transition gear by input gear and deceleration be meshed, by A transition gear, drive B transition gear, realize the forward and reverse synchronous driving of two a change gears.
The comprehensive above technological scheme of taking, realizes object of the present invention.
The features such as compared with prior art, the present invention is not only reasonable in design, and compact structure, under the slow-speed of revolution condition after deceleration, makes two forward and reverse a change gears have impact little, and transmission performance is reliable and stable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
The present invention has three width accompanying drawings.Wherein:
Accompanying drawing 1 be the specific embodiment of the invention main TV structure schematic diagram;
Accompanying drawing 2 is the enlarged diagrams at the M place in Fig. 1;
Accompanying drawing 3 is along the enlarged diagram of analysing and observe of A-A line in Fig. 2.
In figure: 1, A transition gear axle, 2, A transition gear, 3, input gear, 4, deceleration box, 5, gear box cover, 6, B transition gear, 7, axle sleeve, 8, C transition gear, 9, C transition gear axle, 10, transition wheel support, 11, a change gear, 12, O type circle, 13, b change gear.
Embodiment
Shown in Fig. 1,2,3, be specific embodiments of the invention, it is forward and reverse gear synchronous driving mechanism of circulating positive and negative break-in speed change vacuum compressor, the A transition gear axle 1 that comprises reducing gear, it is characterized in that: A transition gear axle 1 bottom keyed jointing A transition gear 2, described A transition gear 2 is meshed with input gear 3; The bottom of described A transition gear axle 1 by bearings in deceleration box 4 inner bottom surfaces, the top of A transition gear axle 1 by bearings in gear box cover 5; In this A transition gear axle 1 top, install forward and reverse gear synchronous driving mechanism; Described forward and reverse gear synchronous driving mechanism is comprised of B transition gear 6, axle sleeve 7, C transition gear 8, C transition gear axle 9 and transition wheel support 10, keyed jointing B transition gear 6 on A transition gear axle 1, one side of described B transition gear 6 is meshed with a change gear 11 of positive direction actuation, the opposite side of this B transition gear 6 is meshed with C transition gear 8 one sides on C transition gear axle 9, and the opposite side of described C transition gear 8 is meshed with a change gear 11 of reverse direction actuation; One end of described C transition gear axle 9 by bearings in gear box cover 5, the other end of C transition gear axle 9 by bearings in the transition wheel support 10 of gear box cover 5; Described transition wheel support 10 is connected on gear box cover 5 bottom surfaces; On described A transition gear 2 and the A transition gear axle 1 between B transition gear 6, install axle sleeve 7; By B transition gear 6, realize the forward and reverse synchronous driving of two a change gears 11.
Between described gear box cover 5 and deceleration box 4, be tightly connected and adopt O type circle 12.
Described transition wheel support 10 is fixed on gear box cover 5 bottom surfaces by screw.
Forward and reverse change gear mechanism in this specific embodiment comprises change gear axle, a change gear, upper and lower axle sleeve, duckbilled key asembly, b change gear 13, upper and lower end cap, free wheel device and free wheel device cover.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; allly be familiar with those skilled in the art in technical scope disclosed by the invention, within being equal to and replacing or change protection scope of the present invention all should be encompassed according to technological scheme of the present invention and design of the present invention thereof.

Claims (3)

1. forward and reverse gear synchronous driving mechanism of a kind of circulating positive and negative break-in speed change vacuum compressor described in, the A transition gear axle (1) that comprises reducing gear, it is characterized in that: A transition gear axle (1) bottom keyed jointing A transition gear (2), described A transition gear (2) is meshed with input gear (3); The bottom of described A transition gear axle (1) by bearings in deceleration box (4) inner bottom surface, the top of A transition gear axle (1) by bearings in gear box cover (5); In this A transition gear axle (1) top, install forward and reverse gear synchronous driving mechanism; Described forward and reverse gear synchronous driving mechanism is comprised of B transition gear (6), axle sleeve (7), C transition gear (8), C transition gear axle (9) and transition wheel support (10), the upper keyed jointing B transition gear (6) of A transition gear axle (1-), one side of described B transition gear (6) is meshed with a change gear (11) of positive direction actuation, the opposite side of this B transition gear (6) is meshed with C transition gear (8) one sides on C transition gear axle (9), and the opposite side of described C transition gear (8) is meshed with a change gear (11) of reverse direction actuation; One end of described C transition gear axle (9) by bearings in gear box cover (5), the other end of C transition gear axle (9) by bearings in the transition wheel support (10) of gear box cover (5); Described transition wheel support (10) is connected on gear box cover (5) bottom surface; The upper installing of described A transition gear (2) and the A transition gear axle (1) between B transition gear (6) (7); By B transition gear (6), realize the forward and reverse synchronous driving of two a change gears (11).
2. by forward and reverse gear driven mechanism of the positive and negative transmission device of vacuum compressor claimed in claim 1, it is characterized in that: between described gear box cover (5) and deceleration box (4), be tightly connected and adopt O type circle (12).
3. by forward and reverse gear driven mechanism of the positive and negative transmission device of vacuum compressor claimed in claim 1, it is characterized in that: described transition wheel support (10) is fixed on gear box cover (5) bottom surface by screw.
CN201310715005.8A 2013-12-18 2013-12-18 Forward and reverse gear synchronous drive mechanism of circulating positive and negative break-in speed change vacuum compressor Expired - Fee Related CN103671761B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310715005.8A CN103671761B (en) 2013-12-18 2013-12-18 Forward and reverse gear synchronous drive mechanism of circulating positive and negative break-in speed change vacuum compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310715005.8A CN103671761B (en) 2013-12-18 2013-12-18 Forward and reverse gear synchronous drive mechanism of circulating positive and negative break-in speed change vacuum compressor

Publications (2)

Publication Number Publication Date
CN103671761A true CN103671761A (en) 2014-03-26
CN103671761B CN103671761B (en) 2016-08-17

Family

ID=50310219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310715005.8A Expired - Fee Related CN103671761B (en) 2013-12-18 2013-12-18 Forward and reverse gear synchronous drive mechanism of circulating positive and negative break-in speed change vacuum compressor

Country Status (1)

Country Link
CN (1) CN103671761B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108698689A (en) * 2016-02-16 2018-10-23 赛峰传动***公司 Deceleration device with input/output rotation commutation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2016645A (en) * 1978-01-16 1979-09-26 Werbetronic Ag Drive transmission device
JP2003185013A (en) * 2001-12-12 2003-07-03 Hitachi Unisia Automotive Ltd Gear shift control device for vehicle
CN101135364A (en) * 2007-10-16 2008-03-05 上海大学 Incompletion gear wheel direction changing transmission mechanism
CN201326697Y (en) * 2008-11-12 2009-10-14 陈凌云 Automated mechanical transmission of overrunning clutch motor
JP4522241B2 (en) * 2004-11-30 2010-08-11 キヤノン株式会社 Drive transmission device and image forming apparatus
US8186238B2 (en) * 2007-10-09 2012-05-29 Allen Ernest W Mechanical gear apparatus
CN203756880U (en) * 2013-12-18 2014-08-06 大连精功机械设备有限公司 Forward and reverse gear synchronous driving mechanism for circulating forward and reverse variable-speed vacuum compressors

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2016645A (en) * 1978-01-16 1979-09-26 Werbetronic Ag Drive transmission device
JP2003185013A (en) * 2001-12-12 2003-07-03 Hitachi Unisia Automotive Ltd Gear shift control device for vehicle
JP4522241B2 (en) * 2004-11-30 2010-08-11 キヤノン株式会社 Drive transmission device and image forming apparatus
US8186238B2 (en) * 2007-10-09 2012-05-29 Allen Ernest W Mechanical gear apparatus
CN101135364A (en) * 2007-10-16 2008-03-05 上海大学 Incompletion gear wheel direction changing transmission mechanism
CN201326697Y (en) * 2008-11-12 2009-10-14 陈凌云 Automated mechanical transmission of overrunning clutch motor
CN203756880U (en) * 2013-12-18 2014-08-06 大连精功机械设备有限公司 Forward and reverse gear synchronous driving mechanism for circulating forward and reverse variable-speed vacuum compressors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108698689A (en) * 2016-02-16 2018-10-23 赛峰传动***公司 Deceleration device with input/output rotation commutation
CN108698689B (en) * 2016-02-16 2021-06-22 赛峰传动***公司 Reduction gear with input/output rotation commutation

Also Published As

Publication number Publication date
CN103671761B (en) 2016-08-17

Similar Documents

Publication Publication Date Title
CN102226466B (en) Reciprocating screw transmission mechanism
CN203627753U (en) Reverser of reversing main shaft mechanism of circulation type forward and backward variable-direction and variable-speed vacuum compressor
CN203756880U (en) Forward and reverse gear synchronous driving mechanism for circulating forward and reverse variable-speed vacuum compressors
CN203594736U (en) Reduction gear of circulation type forward and reverse direction change speed change vacuum compressor
CN203594739U (en) Overdrive gear transmission mechanism of circulation type forward and reverse direction change speed change vacuum compressor
CN203594765U (en) Buffer of direction change spindle mechanism of circulation type forward and reverse direction change speed change vacuum compressor
CN203784212U (en) Spring type duckbilled key for direction change gear shafts of circulating type forward and reverse direction change speed change vacuum compressor
CN203784211U (en) Output shaft mechanism for speed increase device of circulating type forward and reverse direction change speed change vacuum compressor
CN103671761A (en) Synchronous drive mechanism of forward gear and backward gear of circulation type forward and backward turning and variable speed vacuum compressor
CN203594731U (en) Speed increasing gear of circulation type forward and reverse direction change speed change vacuum compressor
CN203796928U (en) Gear shaft mechanism spring type direction-variable keys of circulation type direction-variable speed-variable vacuum compressor
CN103671010A (en) Speed increase gear drive mechanism of speed increase device of circulation type forward and backward turning and variable speed vacuum compressor
CN203925936U (en) The break-in mainshaft mechanism of circulating break-in speed change vacuum compressor break-in main shaft device
CN103671904B (en) The spring break-in scroll key of circulating vacuum compressor positive and negative change gear axis mechanism
CN203627678U (en) Forward and backward direction changing gear shaft mechanism of circulating-type forward and backward direction and speed changing vacuum compressor
CN103629077B (en) The break-in mainshaft mechanism of circulating vacuum compressor break-in main shaft device
CN102278095B (en) Automatic reversing mechanism for rodless oil pumping unit
CN203594738U (en) Reversing gear transmission mechanism of reverser of circulation type forward and reverse direction change speed change vacuum compressor
CN203627673U (en) Forward and backward direction changing device of circulating-type forward and backward direction and speed changing vacuum compressor
CN203770597U (en) Transmission case body for circulation type vacuum compressor capable of turning forward and backward and changing speed
CN101776009B (en) Piston-type direct-drive engine and design method for first taking force and then integrating
CN103629307A (en) Speed reducer of circulation type positive and negative turning variable-speed vacuum compressor
CN103671850A (en) Buffer of main turning shaft mechanism of circulation type forward and backward turning and variable speed vacuum compressor
CN103629309B (en) Output shaft mechanism of speed increasing device of circulation type positive and negative turning variable-speed vacuum compressor
CN103644254A (en) Speeder of circulating type forward and reverse direction and speed changing vacuum compressor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160913

Address after: 116001 Liaoning City, Zhongshan Province, Chaoyang District, No. 1, unit 29, layer 53, layer 6

Patentee after: Locating in Dalian Heng Machinery Manufacturing Co. Ltd.

Address before: 116000 No. 20 love street, hi tech park, Liaoning, Dalian

Patentee before: DALIAN JINGGONG MACHINERY EQUIPMENT CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160817

Termination date: 20171218

CF01 Termination of patent right due to non-payment of annual fee