CN202851356U - Horizontal compressor with symmetrical double cylinders - Google Patents

Horizontal compressor with symmetrical double cylinders Download PDF

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Publication number
CN202851356U
CN202851356U CN 201220442121 CN201220442121U CN202851356U CN 202851356 U CN202851356 U CN 202851356U CN 201220442121 CN201220442121 CN 201220442121 CN 201220442121 U CN201220442121 U CN 201220442121U CN 202851356 U CN202851356 U CN 202851356U
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CN
China
Prior art keywords
bent axle
roller
cylinder
compression unit
motor
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Active
Application number
CN 201220442121
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Chinese (zh)
Inventor
洪飞
龙芳
林少坤
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.)
Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
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Application filed by Gree Electric Appliances Inc of Zhuhai, Zhuhai Landa Compressor Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN 201220442121 priority Critical patent/CN202851356U/en
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Publication of CN202851356U publication Critical patent/CN202851356U/en
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Abstract

The utility model discloses a horizontal compressor with symmetrical double cylinders. The horizontal compressor comprises a shell, a motor and a crankshaft, wherein the crankshaft is assembled on a rotor of the motor, the motor of the compressor is sealed in the shell, and a first compression unit and a second compression unit which are driven by the left end part and the right end part of the crankshaft are symmetrically arranged in the shell at two ends of the motor; and the crankshaft consists of a linear main shaft and a pair of eccentric shaft sleeves, and the eccentric shaft sleeves are symmetrically arranged at two ends of the main shaft by taking the axis of the main shaft as a central line.

Description

A kind of horizontal compressor with symmetrical double cylinder
[technical field]
The utility model relates to horizontal compressor equipment, relates in particular to a kind of horizontal compressor with symmetrical double cylinder.
[background technique]
The Horizontai rotary compressor of prior art because center of gravity is low, shakes the advantage such as little and is widely used in the application systems such as refrigerator, air-conditioning.The electric machine rotor of horizontal compressor is for flat sleeping, rotor is under Action of Gravity Field, be in for a long time unsupported cantilever position, as depicted in figs. 1 and 2, usually need to increase equilibrium block c at the rotor b of the other end of bent axle a and come trim, nonetheless, in the time of also can causing startup or running, certain eccentric wear is caused in the side end face of main bearing d, and noise vibration is bigger than normal, and the reliability of compressor is exerted an influence.
[model utility content]
The utility model adopts the two ends that are arranged at compressor electric motor of a pair of compression unit symmetry, utilize two compression unit symmetrical operations to play the automatic trim balance, provide a kind of simple in structure, easy to assembly, improve working life, the reliability of electric efficiency and compressor, reduce the horizontal compressor with symmetrical double cylinder of noise vibration.
In order to realize the model utility purpose, the technical solution adopted in the utility model is:
A kind of horizontal compressor with symmetrical double cylinder, comprise shell, motor and bent axle, bent axle is assemblied on the rotor of motor, the motor seal of compressor in shell, symmetrical the first compression unit and the second compression unit that is driven by the bent axle left and right end portions that be provided with respectively in the shell at motor two ends; Described the first compression unit comprises the first main bearing, the first cylinder, the first roller and the first supplementary bearing, the first supplementary bearing, the first cylinder are bolted and form the first compression work chamber on the first main bearings, and the first roller is installed on the left end of bent axle in the first compression work chamber; Described the second compression unit comprises the second main bearing, the second cylinder, the second roller and the second supplementary bearing, the second supplementary bearing, the second cylinder are bolted and form the second compression work chamber on the second main bearings, and the second roller is installed on the right-hand member of bent axle in the second compression work chamber; Described bent axle is comprised of main shaft and a pair of excentric sleeve that cooperates with the first roller, the second roller respectively of straight line shape, and described excentric sleeve line centered by the spindle axis line is symmetricly set in the two ends of main shaft.
Preferably, described excentric sleeve adopts pin block or spline to be assemblied on the main shaft.
Preferably, the both sides of described pin block embedding main shaft of line symmetry centered by the spindle axis line.
Preferably, described pin block cross section is square or rectangular.
Preferably, described excentric sleeve adopts a pair of symmetrically arranged pin block to be connected with the spindle mounted place.
Preferably, described excentric sleeve adopts powder metallurgy to make.
The beneficial effects of the utility model are:
Horizontai rotary compressor of the present utility model, by changing the assembly structure of bent axle, adopt main shaft and a pair of excentric sleeve of straight line shape to form, utilize symmetry principle, excentric sleeve adopt pin block centered by the spindle axis line line symmetry be matched with the main shaft two end part, and two the first compression units that cooperate with the crankshaft two end eccentric bushing and the second compression unit be set at horizontal compressor motor two end part, the first compression unit and the second compression unit symmetrical operation, save in the past equilibrium block in the horizontal compressor, increased again the discharge capacity of compressor, motor causes the main bearing eccentric wear without the fulcrum operation when having avoided simultaneously one-sided compression unit work, make compressor operation steadily reliable, improved electric efficiency, the working life of compressor and reliability have reduced noise vibration.
[description of drawings]
Fig. 1 is existing Horizontai rotary compressor sectional structure schematic representation;
Fig. 2 is sectional structure schematic representation of the present utility model;
Fig. 3 is the blast structural representation of the utility model bent axle;
Fig. 4 is the assembly process structural representation of the utility model bent axle;
Fig. 5 is the side enlarged diagram of the utility model pin block;
Fig. 6 is the first cross section structure enlarged diagram of the utility model pin block;
Fig. 7 is the second cross section structure enlarged diagram of the utility model pin block.
[embodiment]
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
A kind of horizontal compressor with symmetrical double cylinder, as shown in Figure 2, comprise shell 1, motor 2 and bent axle 3, bent axle 3 is assemblied on the rotor of motor 2, the motor 2 of compressor is sealed in the shell 1, at interior respectively symmetrical the first compression unit 4 and the second compression unit 5 that is driven by bent axle 3 left and right end portions that be provided with of the shell 1 at motor 2 two ends; Described the first compression unit 4 comprises the first main bearing 40, the first cylinder 41, the first roller 42 and the first supplementary bearing 43, the first supplementary bearing 43, the first cylinder 41 are fixed in by bolt 6 and form the first compression work chamber 44 on the first main bearing 40, and the first roller 42 is installed on the left end of bent axle 3 in the first compression work chamber 44; Described the second compression unit 5 comprises the second main bearing 50, the second cylinder 51, the second roller 52 and the second supplementary bearing 53, the second supplementary bearing 53, the second cylinder 51 are fixed in by bolt 6 and form the second compression work chamber 54 on the second main bearing 50, and the second roller 52 is installed on the right-hand member of bent axle 3 in the second compression work chamber 54; Described bent axle 3 is comprised of main shaft 30 and a pair of excentric sleeve 31 that cooperates with the first roller 42, the second roller 52 respectively of straight line shape, described excentric sleeve 31 adopts the two ends that powder metallurgy is made and line is symmetricly set in main shaft 30 centered by main shaft 30 shaft axiss, and excentric sleeve 31 adopts pin block 32 to be assemblied on the main shaft 30.The axial oil supply hole 33 that compression unit and bearing fit section at bent axle 3 two end part offers respectively the axial blind hole state.
To shown in Figure 7, pin block 32 as required its cross section can be designed as square or is rectangular such as Fig. 4, simultaneously, for main shaft 30 moments of torsion stressed evenly, the both sides of pin block 32 embedding main shaft 30 of line symmetry centered by main shaft 30 shaft axiss.
The utility model adopts the main shaft 30 of straight line shape and a pair of excentric sleeve 31 to form by changing the assembly structure of bent axle, will have irregular bent axle now and be changed to two parts, and excentric sleeve 31 adopts powder metallurgy to make, and wear resistance is good, easily processing; During assembling, main shaft 30 outsides and excentric sleeve 31 inboard flutings, with pin block 32 lockings, pin block 32 height are a little less than the height of cylinder, make the do not wear and tear major and minor bearing plane of compression unit of pin block 32.Simultaneously, with reference to the fixing method of horizontal machine two end cap bearing, utilize symmetry principle, at two compression unit symmetrical operations of motor both sides design, both increased the discharge capacity of compressor, and avoided again the one-sided pump housing to cause motor to move without fulcrum, and made compressor operation steadily reliable.As shown in Figure 2, the exhaust mode that supplies of the present utility model adopts two groups of air supply pipes and outlet pipe respectively to the first compression unit 4 and the second compression unit 5 air feed and exhaust.
In the assembly process, allow first the first main bearing 40 and first cylinder 41 of the first compression unit 4 feel relieved, motor 2 stator heating jackets are in shell 1, main shaft 30 hot jackets of bent axle 3 are on rotor, pass the first main bearing 40 of the first compression unit 4 with the rotor (joining clearance gauge) of main shaft 30, then outer rim three spot welding with the first main bearing 40 of the first compression unit 4 are connected on the shell 1, then load onto excentric sleeve 31, load onto pin block 32 and locating stud and fasten; Then, dress roller slide plate and the first supplementary bearing 43 are finished first compression unit 4 that is tightly connected; After mixing up, refill the second main bearing of the second compression unit, all the other are identical with normal production technology.During assembling, if difficult 105 ° of gaps that guarantee the two ends compression unit pump housing, can increase the stepping of roller outer diameter, every grade of 0.005X4, change the roller outer diameter size and satisfy 105 ° of pump housing gaps radially, 15 °, 195 °, 285 ° of other angle of assembling of pump body all can have 0.01~0.02 deviation.
The above embodiment just is preferred embodiment of the present utility model, be not to limit practical range of the present utility model with this, as also adopting one group of air supply pipe and outlet pipe for exhaust mode, after by the first compression unit working medium being carried out first time compression, undertaken discharging after the secondary compression by the second compression unit again; The equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the present utility model.

Claims (6)

1. the horizontal compressor with symmetrical double cylinder comprises shell, motor and bent axle, and bent axle is assemblied on the rotor of motor, and the motor seal of compressor is characterized in that in shell:
Symmetrical the first compression unit and the second compression unit that is driven by the bent axle left and right end portions that be provided with respectively in the shell at motor two ends;
Described the first compression unit comprises the first main bearing, the first cylinder, the first roller and the first supplementary bearing, the first supplementary bearing, the first cylinder are bolted and form the first compression work chamber on the first main bearings, and the first roller is installed on the left end of bent axle in the first compression work chamber;
Described the second compression unit comprises the second main bearing, the second cylinder, the second roller and the second supplementary bearing, the second supplementary bearing, the second cylinder are bolted and form the second compression work chamber on the second main bearings, and the second roller is installed on the right-hand member of bent axle in the second compression work chamber;
Described bent axle is comprised of main shaft and a pair of excentric sleeve that cooperates with the first roller, the second roller respectively of straight line shape, and described excentric sleeve line centered by the spindle axis line is symmetricly set in the two ends of main shaft.
2. a kind of horizontal compressor with symmetrical double cylinder according to claim 1 is characterized in that, described excentric sleeve adopts pin block or spline to be assemblied on the main shaft.
3. a kind of horizontal compressor with symmetrical double cylinder according to claim 2 is characterized in that, the both sides of described pin block embedding main shaft of line symmetry centered by the spindle axis line.
4. a kind of horizontal compressor with symmetrical double cylinder according to claim 2 is characterized in that, described pin block cross section is square or rectangular.
5. a kind of horizontal compressor with symmetrical double cylinder according to claim 2 is characterized in that, described excentric sleeve adopts a pair of symmetrically arranged pin block to be connected with the spindle mounted place.
6. a kind of horizontal compressor with symmetrical double cylinder according to claim 1 is characterized in that, described excentric sleeve adopts powder metallurgy to make.
CN 201220442121 2012-08-31 2012-08-31 Horizontal compressor with symmetrical double cylinders Active CN202851356U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220442121 CN202851356U (en) 2012-08-31 2012-08-31 Horizontal compressor with symmetrical double cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220442121 CN202851356U (en) 2012-08-31 2012-08-31 Horizontal compressor with symmetrical double cylinders

Publications (1)

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CN202851356U true CN202851356U (en) 2013-04-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102900670A (en) * 2012-08-31 2013-01-30 珠海格力电器股份有限公司 Horizontal compressor having symmetrical double cylinders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102900670A (en) * 2012-08-31 2013-01-30 珠海格力电器股份有限公司 Horizontal compressor having symmetrical double cylinders

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