CN106151046B

CN106151046B - A kind of error transfer factor structure of screw compressor

Info

Publication number: CN106151046B
Application number: CN201610790524.4A
Authority: CN
Inventors: 徐道敏; 王敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-25
Filing date: 2016-08-31
Publication date: 2018-09-14
Anticipated expiration: 2036-08-31
Also published as: CN106151046A; CN206190527U

Abstract

The present invention provides a kind of error transfer factor structures of screw compressor, belong to Compressor Technology field.It solves the problems, such as that existing screw compressor assembly precision is poor.The error transfer factor structure of this screw compressor, screw compressor includes fixed bearing block, be vortexed quiet disk, eddy spinner disk and Moving plate bearing block, error transfer factor structure includes positioning bent axle and adjust pad, there is bearing hole one on Moving plate bearing block, bearing one is equipped in bearing hole one, platen one is fixed on Moving plate bearing block, positioning bent axle one end is fixedly plugged in bearing one, there is bearing hole two on fixed bearing block, bearing two is equipped in bearing hole two, the positioning bent axle other end is fixedly plugged in bearing two, adjust pad is arranged between two bottom surface of bearing two and bearing hole, platen two is fixed on fixed bearing block.The error transfer factor structure of this screw compressor makes the assembling of screw compressor more convenient, assembly precision higher.

Description

A kind of error transfer factor structure of screw compressor

Technical field

The invention belongs to Compressor Technology fields, are related to a kind of error transfer factor structure of screw compressor.

Background technology

Scroll air compressor is efficient with its, low noise, it is small, be conducive to the advantages that energy saving and environmental protection and wide It is general applied to industry, agricultural, communications and transportation, the civilian industries such as pneumatically all need the occasion of compressed air.Swirled air compresses It is whirlpool disk that owner, which will run part, and whirlpool disk only engages, and does not generate abrasion, thus the service life is longer than piston type, screw compressor, It is pneumatic machinery ideal power source.In scroll air compressor, the whirlpool disk as main operation part is divided into Moving plate and quiet disk, moves Vortex piece is set in disk and quiet disk, in general, being bonded to each other by Moving plate and quiet disk and being formed compression chamber, when Moving plate is driven by bent axle along one When determining circular path and being translatable, Moving plate vortex piece is moved relative to quiet disk vortex piece, i.e., is formed by compression chamber movement simultaneously by the two Change its volume, to be sucked, be compressed, discharged, completes the process of compressed air.

As Chinese invention patent application (201510280997.5) discloses a kind of low compression ratio oil-free vortex air compression Machine assembly, including host shell and orbiter, host shell pass through in top in the middle part of three secondary eccentric shafts and host shell Orbiter is connected, and the upper end of orbiter is provided with fixed scroll, and fixed scroll edge is connected with host shell edge upper end, Fit clearance wherein between fixed scroll and orbiter directly affects the leakproofness of compression chamber, and then influences working efficiency, Above-mentioned compressor, which connects in orbiter with fixed scroll, thus is provided with self-lubricating pad in face tooth top seal groove and adjustment is soft Pad improves leakproofness by self-lubricating pad and adjustment cushion, but this kind of seal member is easy during long-time use Ageing failure, and be to axially engage installation between orbiter, fixed scroll, secondary eccentric shaft, bearing, it is susceptible to axial tired Product error, causes assembly precision poor.

Invention content

The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of error tune of screw compressor The error transfer factor structure of whole structure, the screw compressor makes the assembling of screw compressor more convenient, assembly precision higher.

Object of the invention can be realized by the following technical scheme：A kind of error transfer factor structure of screw compressor, whirlpool Rotation compressor includes fixed bearing block, be vortexed quiet disk, eddy spinner disk and Moving plate bearing block, and the quiet disk that is vortexed is connected in fixing axle In bearing, in fixed bearing block, the eddy spinner disk is fixedly connected with the Moving plate bearing seat with Moving plate bearing block, and it is dynamic to be vortexed Disk is matched with the quiet disk that is vortexed, which is characterized in that the error transfer factor structure includes positioning bent axle and adjust pad, the Moving plate There is bearing hole one on bearing block, bearing one is equipped in the bearing hole one, being fixed on the Moving plate bearing block can be by axis A platen one being pressed in bearing hole one is held, one end of the positioning bent axle is fixedly plugged in bearing one, the fixing axle There is bearing hole two in bearing, bearing two is equipped in the bearing hole two, the other end of the positioning bent axle is fixedly plugged in axis It holds in two, the adjust pad is arranged between the end face of bearing two and the bottom surface of bearing hole two, solid on the fixed bearing block The platen two for being connected with and being pressed on bearing two, and bearing two is made to be pressed in adjust pad.

It is vortexed quiet disk and eddy spinner disk matches, motor is connected with Moving plate bearing block, passes through Moving plate bearing block and drives whirlpool Rotating disk operates, therefore the cooperation precision between eddy spinner disk and the quiet disk that is vortexed directly affects working efficiency, is this this scroll compression Cooperation of the contracting machine by error transfer factor structure during screw compressor assembling directly between eddy spinner disk and the quiet disk that is vortexed Gap is adjusted, specifically, bearing one and bearing two there are two, to match bearing, eddy spinner disk is fixedly mounted in advance On Moving plate bearing block, platen one and platen two are respectively sleeved to the both ends of positioning bent axle, it is fixed that two bearings one are sleeved on One end of position bent axle, two bearings two are sleeved on the other end of positioning bent axle, and two bearings one are then pressed into Moving plate bearing block In bearing hole one, platen one is fixed on Moving plate bearing block so that platen one compresses bearing one, by Moving plate bearing block, bearing One, platen one, positioning bent axle and bearing two are installed in place and eliminate mutual gap error, since above-mentioned several components are equal It is axially mounted, assembly is relatively simple, and assembly precision is also higher, then measures eddy spinner disk end face between bearing biend Distance can calculate according to the distance between measurement result and the quiet disk of the vortex being pre-designed to fixed bearing block and work as whirlpool Rotating disk and the distance between bearing biend and two bottom surface of bearing hole after the quiet disk lean and correct assembly that is vortexed, it is suitable so to select The adjust pad is put into bearing hole two by the adjust pad of thickness, rotational positioning bent axle and make bearing two on positioning bent axle with Bearing hole two is aligned and is pressed into, and platen two is fixed on fixed bearing block so that platen two compresses bearing two, and bearing two compresses Adjust pad, to realize the installation of Moving plate, in installation process above, due in advance will positioning bent axle on all parts it Between gap error that may be present be fully transferred to positioning bent axle end, i.e., between two bottom surface of bearing two and bearing hole, then Corresponding adjust pad be pre-selected assembled by calculating so that it is easier for installation, and after installing eddy spinner disk with It is vortexed between quiet disk and axially engages precision higher.

In the error transfer factor structure of above-mentioned screw compressor, connecting hole is offered on the fixed bearing block, the company It is parallel with positioning bent axle to connect hole, screw hole is offered on the platen two, hold-down bolt is equipped in the connecting hole, the compression The end of bolt is screwed onto in the screw hole of platen two, and platen two is pressed on the outer end of two outer ring of bearing under the action of hold-down bolt On end face, the inner end end face of two outer ring of bearing is pressed in adjust pad.The outer end of bearing one is towards one aperture of bearing hole One end, the outer end of bearing two are one end towards two aperture of bearing hole, and hold-down bolt is for connecting platen two, and platen two is to bearing Hole two is covered so that bearing two has preferable lubricant environment, the length direction of connecting hole and the axial phase of bearing hole two Together, therefore when screwing hold-down bolt platen two can be tensed, acting on lower bearing two in platen two is pressed in adjust pad, realizes To the axial restraint of two outer ring of bearing, and axial gap error is fully eliminated, improves assembly precision.

In the error transfer factor structure of above-mentioned screw compressor, the positioning bent axle includes the crank arm of plate-like, described Vertically there is columnar driving section one, which is fixedly plugged in bearing one, and crank arm on the one side of crank arm Side be pressed on the outer end end face of one inner ring of bearing, on the another side of the crank arm vertically have columnar driving section Two, which is fixedly plugged in bearing two, and the another side of crank arm is pressed on the outer end end face of two inner ring of bearing On.Driving section one is parallel with driving section two and one inner ring of bearing is fixed in bearing hole one by eccentric setting, crank arm side, To realize the axial restraint to one inner ring of bearing, and eliminate mutual gap error.

In the error transfer factor structure of above-mentioned screw compressor, through-hole, institute are offered on the bottom surface of the bearing hole two The end for stating driving section two passes through and bearing two and stretches into through-hole, and the end for stretching into driving section two through-hole is bolted with positioning spiral shell Mother, the location nut are pressed on the inner end end face of two inner ring of bearing, and two inner ring of bearing is outer under the action of location nut End end face is pressed on the side of crank arm.Location nut is screwed after platen two is fixed on fixed bearing block so that positioning Nut enters through-hole and is pressed on two inner ring end face of bearing, to realize the axial restraint to two inner ring of bearing.

In the error transfer factor structure of above-mentioned screw compressor, escape groove is offered on the lateral surface of the platen two, Offer through hole two on the bottom surface of the escape groove, have on the side of the crank arm annular against convex edge, the song Shaft arm stretches into escape groove, and stretches into through hole two against convex edge and be pressed on the outer end end face of two inner ring of bearing.Escape groove So that the overall structure after assembly is compacter, and the outer end end face of two inner ring of bearing and crank arm are pressed against each other against convex edge, Inner end is pressed against each other with location nut, to realize the axial precise positioning to two inner ring of bearing.

In the error transfer factor structure of above-mentioned screw compressor, there is positioning region, institute on the end face of the driving section two It states and offers flat recess either cross recess or several handle holes on the end face of positioning region.When screwing or unclamping location nut Flat recess either cross recess or the circumferentially fixed firmly positioning bent axle of handle hole are first passed through, positioning bent axle rotation is prevented, to conveniently Labour-saving operates location nut so that assembles simpler convenience.

In the error transfer factor structure of above-mentioned screw compressor, the platen one is connected in dynamic by clamping screw locking In dish axle bearing, platen one is pressed on the outer end end face of one outer ring of bearing under the action of clamping screw, one outer ring of bearing Inner end end face is pressed on the bottom surface of bearing hole one.Platen a pair of bearings hole one is covered so that bearing one has preferable The outer end of lubricant environment, bearing one carries out axially position by platen one, eliminates mutual gap error so that assembly is more Add precisely.

In the error transfer factor structure of above-mentioned screw compressor, through hole one, above-mentioned biography are offered on the platen one Dynamic portion one passes through through hole one, have on the side of the crank arm annular against protrusion, described stretched into against protrusion is run through Hole is pressed on together on the outer end end face of one inner ring of bearing.It, can be pre- by the distance between bearing after assembly one and bearing two Machining adjustment is first passed through against protrusion with against the distance between convex edge end face, is facilitated and is processed and make precision higher after assembly.

In the error transfer factor structure of above-mentioned screw compressor, there are two the bearings two in the bearing hole two, two Adjusting washer one is equipped between the outer ring of the bearing two.Between capable of being adjusted between two outer ring of two bearings by adjusting washer one Gap, to eliminate axial error.

In the error transfer factor structure of above-mentioned screw compressor, there are two the bearings two in the bearing hole two, two Adjusting washer two is equipped between the inner ring of the bearing two.Between capable of being adjusted between two outer ring of two bearings by adjusting washer two Gap, to eliminate axial error.

Compared with prior art, the error transfer factor structure of this screw compressor has the following advantages：

1, bent since gap error that may be present between all parts on positioning bent axle is fully transferred to positioning in advance That is, between two bottom surface of bearing two and bearing hole, corresponding adjust pad progress then is pre-selected by calculating in the end of axis Assembly so that it is easier for installation, and after installing precision higher is axially engaged between eddy spinner disk and the quiet disk that is vortexed.

2, due to first passing through flat recess or cross recess or handle hole when screwing either release location nut circumferentially admittedly It is fixed to live to position bent axle, positioning bent axle rotation is prevented, to convenient and strength-saving operation location nut so that assemble simpler side Just.

Description of the drawings

Fig. 1 is the structure sectional view of screw compressor.

Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.

Fig. 3 is the dimensional structure diagram for the positioning bent axle that flat recess is offered on positioning region.

Fig. 4 is the dimensional structure diagram for the positioning bent axle that cross recess is offered on positioning region.

Fig. 5 is the dimensional structure diagram for the positioning bent axle that handle hole is offered on positioning region.

Fig. 6 is the partial structural diagram of the error transfer factor structure in embodiment two.

Fig. 7 is the partial structural diagram of the error transfer factor structure in embodiment three.

In figure, 1, fixed bearing block；11, bearing hole two；12, bearing two；13, connecting hole；14, through-hole；15, adjusting washer One；16, adjusting washer two；2, be vortexed quiet disk；3, eddy spinner disk；4, Moving plate bearing block；41, bearing hole one；42, bearing one；5、 Position bent axle；51, crank arm；52, driving section one；53, driving section two；54, against convex edge；55, against protrusion；56, positioning region； 561, flat recess；562, cross recess；563, handle hole；6, adjust pad；7, platen one；71, clamping screw；72, through hole one； 8, platen two；81, screw hole；82, hold-down bolt；83, escape groove；84, through hole two；9, location nut.

Specific implementation mode

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

Embodiment one：

As shown in Figure 1 and Figure 2, the error transfer factor structure of a kind of screw compressor, screw compressor include fixed bearing block 1, Be vortexed quiet disk 2, eddy spinner disk 3 and Moving plate bearing block 4, and the quiet disk 2 that is vortexed is connected on fixed bearing block 1, and Moving plate bearing block 4 is located at In fixed bearing block 1, eddy spinner disk 3 is fixedly connected with Moving plate bearing block 4, and eddy spinner disk 3 is matched with the quiet disk 2 that is vortexed, motor It is connected with Moving plate bearing block 4, drives eddy spinner disk 3 to operate by Moving plate bearing block 4.Error transfer factor structure includes positioning bent axle 5 and adjust pad 6, there is bearing hole 1 on Moving plate bearing block 4, bearing 1, Moving plate bearing block 4 are equipped in bearing hole 1 On be fixed with the platen 1 that bearing 1 can be pressed in bearing hole 1, one end of positioning bent axle 5 is fixedly plugged in axis It holds in one 42, there is bearing hole 2 11 on fixed bearing block 1, be equipped with bearing 2 12 in bearing hole 2 11, position the another of bent axle 5 End is fixedly plugged in bearing 2 12, and adjust pad 6 is arranged between the end face of bearing 2 12 and the bottom surface of bearing hole 2 11, Gu The platen 28 for being fixed with and being pressed on bearing 2 12 in dead axle bearing 1, and bearing 2 12 is made to be pressed in adjust pad 6.

Specifically, the outer end of bearing 1 is one end towards one 41 aperture of bearing hole, and the outer end of bearing 2 12 is court To the one end in 2 11 aperture of bearing hole, connecting hole 13 is offered on fixed bearing block 1, the connecting hole 13 is equal with positioning bent axle 5 Row, i.e., the length direction of connecting hole 13 is identical as the axial direction of bearing hole 2 11, and screw hole 81, connecting hole 13 are offered on platen 28 It is inside equipped with hold-down bolt 82, the end of the hold-down bolt 82 is screwed onto in the screw hole 81 of platen 28, in the work of hold-down bolt 82 It is pressed on pressing disc 28 on the outer end end face of 2 12 outer ring of bearing, the inner end end face of 2 12 outer ring of bearing is pressed on adjusting pad On piece 6.Positioning bent axle 5 includes the crank arm 51 of plate-like, vertically has columnar driving section 1 on the one side of crank arm 51, Vertically have columnar driving section 2 53, driving section 1 parallel and inclined with driving section 2 53 on the another side of crank arm 51 The heart is arranged, have on the side of crank arm 51 annular against convex edge 54, offer escape groove 83 on the lateral surface of platen 28, Through hole 2 84 is offered on the bottom surface of escape groove 83, driving section 2 53 is fixedly plugged in bearing 2 12, and crank arm 51 stretches into In escape groove 83, and stretches into through hole 2 84 against convex edge 54 and be pressed on the outer end end face of 2 12 inner ring of bearing.Bearing hole Through-hole 14 is offered on 2 11 bottom surface, the end of driving section 2 53 passes through bearing 2 12 and stretches into through-hole 14, and is being driven The end that portion 2 53 stretches into through-hole 14 is bolted with location nut 9, and in a ring, location nut 9 passes through adjust pad 6 to adjust pad 6 It is pressed on the inner end end face of 2 12 inner ring of bearing, 14 aperture of through-hole is larger so that there are for adjusting for 2 11 bottom surface of bearing hole Gasket 6 against position, to facilitate rotation process location nut 9, wherein on the end face of driving section 2 53 have positioning region 56, as shown in figure 3, offering flat recess 561 on the end face of positioning region 56, first passed through when screwing or unclamping location nut 9 Flat recess 561 fixes positioning bent axle 5, prevents positioning bent axle 5 from rotating, to convenient and strength-saving operation location nut 9 so that dress It, can also be as shown in figure 4, opening up cross recess on positioning region 56 certainly during actual processing with simpler convenience 562 or as shown in figure 5, opening up several handle holes 563 on positioning region 56, naturally it is also possible to open up polygon endoporus, also may be used It is processed with the periphery wall to positioning region 56 so that the cross section of positioning region 56 is in polygon, is easy to carry out positioning bent axle 5 It is circumferentially positioned.

Platen 1 is connected in by the locking of clamping screw 71 on Moving plate bearing block 4, platen under the action of clamping screw 71 One 7 are pressed on the outer end end face of one 42 outer ring of bearing, and the inner end end face of one 42 outer ring of bearing is pressed on the bottom of bearing hole 1 On face, through hole 1 is offered on platen 1, driving section 1 passes through through hole 1, has on the side of crank arm 51 Annular against protrusion 55, stretch into through hole 1 against protrusion 55 and be pressed on the outer end end face of one 42 inner ring of bearing, lead to Cross the distance between bearing 1 and bearing 2 12 after assembly, can first pass through in advance machining adjust against protrusion 55 with against convex Along the distance between 54 end faces, facilitates and process and make precision higher after assembly.

This screw compressor carries out the adjustment of gap error in assembling process, to keep installation simpler, specifically, Bearing 1 and bearing 2 12 there are two, to match bearing, eddy spinner disk 3 is fixedly mounted on Moving plate bearing block 4 in advance, Platen 1 and platen 28 are respectively sleeved to the both ends of positioning bent axle 5, two bearings 1 are sleeved on the one of positioning bent axle 5 End, two bearings 2 12 are sleeved on the other end of positioning bent axle 5, then two bearings 1 are pressed into the bearing of Moving plate bearing block 4 In hole 1, platen 1 is fixed on Moving plate bearing block 4 so that platen 1 compress bearing 1, by Moving plate bearing block 4, Bearing 1, platen 1, positioning bent axle 5 and bearing 2 12 are installed in place and eliminate mutual gap error, due to above-mentioned Several components are axially mounted, and assembly is relatively simple, and assembly precision is also higher, then measure 3 end face of eddy spinner disk to bearing The distance between 2 12 end faces, according to measurement result and the quiet disk 2 of vortex being pre-designed between fixed bearing block 1 away from From, can calculate when eddy spinner disk 3 and be vortexed quiet 2 lean and correct assembly of disk after 2 11 bottom surface of 2 12 end face of bearing and bearing hole between Distance, can so select the adjust pad 6 of suitable thickness, which is put into bearing hole 2 11, rotational positioning is bent Axis 5 simultaneously makes the bearing 2 12 on positioning bent axle 5 be aligned and be pressed into bearing hole 2 11, and platen 28 is fixed on fixed bearing block 1 On so that platen 28 compresses bearing 2 12, and bearing 2 12 compresses adjust pad 6, to realize the installation of Moving plate, above In installation process, due in advance gap error that may be present between all parts on positioning bent axle 5 being fully transferred to position That is, between 2 11 bottom surface of bearing 2 12 and bearing hole, corresponding adjusting pad then is pre-selected by calculating in the end of bent axle 5 Piece 6 is assembled so that and it is easier for installation, and after installing precision is axially engaged between eddy spinner disk 3 and the quiet disk 2 that is vortexed more It is high.

Embodiment two

The error transfer factor structure and embodiment one of the screw compressor are essentially identical, and difference is as shown in fig. 6, two axis It holds and is additionally provided with adjusting washer 1 between 2 12 outer ring, two bearings are adjusted by selecting the adjusting washer 1 of suitable thickness Gap between 2 12 outer rings, to eliminate axial error.

Embodiment three

The error transfer factor structure and embodiment one of the screw compressor are essentially identical, and difference is as shown in fig. 7, two axis It holds and is additionally provided with adjusting washer 2 16 between 2 12 inner ring, two bearings are adjusted by selecting the adjusting washer 2 16 of suitable thickness Gap between 2 12 inner rings, to eliminate axial error.

Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Although the terms such as fixed bearing block 1, bearing hole 2 11, bearing 2 12 are used more herein, it is not precluded Use the possibility of other terms.The use of these items is only for more easily describe and explain the essence of the present invention； They are construed to any one of the additional limitations and are all disagreed with spirit of that invention.

Claims

1. a kind of error transfer factor structure of screw compressor, screw compressor includes fixed bearing block (1), be vortexed quiet disk (2), whirlpool Rotating disk (3) and Moving plate bearing block (4), the quiet disk (2) that is vortexed are connected on fixed bearing block (1), the Moving plate bearing block (4) it is located in fixed bearing block (1), the eddy spinner disk (3) is fixedly connected with Moving plate bearing block (4), and eddy spinner disk (3) and whirlpool It revolves quiet disk (2) to match, the error transfer factor structure includes positioning bent axle (5), has bearing hole on the Moving plate bearing block (4) One (41), the bearing hole one (41) is interior to be equipped with bearing one (42), and being fixed on the Moving plate bearing block (4) can be by bearing one (42) one end of the platen one (7) being pressed in bearing hole one (41), the positioning bent axle (5) is fixedly plugged in bearing one (42) It is interior, there is bearing hole two (11) on the fixed bearing block (1), bearing two (12) is equipped in the bearing hole two (11), it is described The other end of positioning bent axle (5) is fixedly plugged in bearing two (12), which is characterized in that the error transfer factor structure further includes adjusting Whole gasket (6), the adjust pad (6) is arranged between the end face of bearing two (12) and the bottom surface of bearing hole two (11), described It is fixed with and is pressed on bearing two (12) on fixed bearing block (1), and bearing two (12) is made to be pressed on the pressure in adjust pad (6) Disk two (8).

2. the error transfer factor structure of screw compressor according to claim 1, which is characterized in that the fixed bearing block (1) connecting hole (13) is offered on, the connecting hole (13) is parallel with positioning bent axle (5), and spiral shell is offered on the platen two (8) Hole (81), the connecting hole (13) is interior to be equipped with hold-down bolt (82), and the end of the hold-down bolt (82) is screwed onto platen two (8) Screw hole (81) in, platen two (8) is pressed on the outer end end face of bearing two (12) outer ring under the action of hold-down bolt (82), The inner end end face of bearing two (12) outer ring is pressed in adjust pad (6).

3. the error transfer factor structure of screw compressor according to claim 2, which is characterized in that the positioning bent axle (5) Crank arm (51) including plate-like vertically has columnar driving section one (52), the biography on the one side of the crank arm (51) Dynamic portion one (52) are fixedly plugged in bearing one (42), and the side of crank arm (51) is pressed on the outer end of bearing one (42) inner ring On end face, vertically have columnar driving section two (53), the driving section two (53) solid on the another side of the crank arm (51) Surely it is plugged in bearing two (12), and the another side of crank arm (51) is pressed on the outer end end face of bearing two (12) inner ring.

4. the error transfer factor structure of screw compressor according to claim 3, which is characterized in that the bearing hole two (11) Bottom surface on offer through-hole (14), the end of the driving section two (53) passes through bearing two (12) and stretches into through-hole (14), And the end that through-hole (14) is stretched into driving section two (53) is bolted with location nut (9), the location nut (9) is pressed on bearing On the inner end end face of two (12) inner rings, the outer end end face of bearing two (12) inner ring is pressed on song under the action of location nut (9) On the side of shaft arm (51).

5. the error transfer factor structure of screw compressor according to claim 4, which is characterized in that the platen two (8) Escape groove (83) is offered on lateral surface, and through hole two (84), the crank arm are offered on the bottom surface of the escape groove (83) (51) have on side annular against convex edge (54), the crank arm (51) is stretched into escape groove (83), and against convex edge (54) it stretches into through hole two (84) and is pressed on the outer end end face of bearing two (12) inner ring.

6. the error transfer factor structure of screw compressor according to claim 4 or 5, which is characterized in that the driving section two (53) there are positioning region (56) on end face, flat recess (561) or cross recess are offered on the end face of the positioning region (56) (562) or several handle holes (563).

7. the error transfer factor structure of the screw compressor according to claim 3 or 4 or 5, which is characterized in that the platen one (7) it is connected on Moving plate bearing block (4) by clamping screw (71) locking, the platen one (7) under the action of clamping screw (71) It is pressed on the outer end end face of bearing one (42) outer ring, the inner end end face of bearing one (42) outer ring is pressed on bearing hole one (41) On bottom surface.

8. the error transfer factor structure of screw compressor according to claim 7, which is characterized in that on the platen one (7) Through hole one (72) is offered, above-mentioned driving section one (52) passes through through hole one (72), has on the side of the crank arm (51) Have annular against protrusion (55), it is described to stretch into through hole one (72) against protrusion (55) and be pressed on bearing one (42) inner ring On the end face of outer end.

9. the error transfer factor structure of the screw compressor according to claim 3 or 4 or 5, which is characterized in that the bearing hole There are two bearings two (12) in two (11), and adjusting washer one (15) is equipped between the outer ring of two bearings two (12).

10. the error transfer factor structure of the screw compressor according to claim 3 or 4 or 5, which is characterized in that the bearing There are two bearings two (12) in hole two (11), and adjusting washer two (16) is equipped between the inner ring of two bearings two (12).