CN207195194U - Screw compressor upper bracket and screw compressor - Google Patents

Abstract

The utility model provides a kind of screw compressor upper bracket and screw compressor.Screw compressor upper bracket includes rack body, and mutually isolated oil sump and installation groove are provided with rack body, is connected between oil sump and installation groove by the flow-guiding channel being arranged on rack body.Due to being provided with the flow-guiding channel for connecting the oil sump with installation groove on the screw compressor upper bracket in the utility model, pass through the effect of the flow-guiding channel, it is easy to the fluid in oil sump being delivered at installation groove, and then it is easy to be lubricated cross slip-ring, prevent cross slip-ring from wearing, improve the service life of the cross slip-ring and screw compressor in the utility model.

Description

Screw compressor upper bracket and screw compressor

Technical field

Compression set technical field is the utility model is related to, in particular to a kind of screw compressor upper bracket and whirlpool Revolve compressor.

Background technology

To prevent rotation of the orbiter in motion process in screw compressor, in its bottom groove and upper bracket groove One Roundabout slide unit (cross slip-ring) of middle placement, in vertical vortex, the horizontal cloth of friction pair of cross slip-ring Put, the oil of back pressure cavity is easier to lubricate the friction pair of cross slip-ring.

But in horizontal compressor, because cross slip-ring is arranged vertically, the lubricating oil of back pressure cavity is seldom due to Action of Gravity Field Or top key groove location can not be moved to, particularly compressor is during running at high speed, if cross slip-ring lubrication is not filled Point, the side of cross slip-ring part sliding block can be made to scratch, wear, with the lengthening of the duration of runs, working order continues to deteriorate, can Cross slip-ring can be caused to damage, screw compressor failure.

It is to sum up shown, during starting horizontal type scroll compressor, due in the long-term placement process of screw compressor, weighing Under power effect, the lubricating oil in cross slip-ring keyway is accumulated to bottom, easily causes upper cross slip ring keyway oil starvation, causes to press Contracting machine starting process cross slip-ring inordinate wear；In operation process, upper cross slip ring keyway lubrication is insufficient, and limiting condition holds Easily cause cross slip-ring inordinate wear.

Utility model content

Main purpose of the present utility model is to provide a kind of screw compressor upper bracket and screw compressor, existing to solve The problem of cross slip-ring for having the horizontal type scroll compressor in technology easily wears.

To achieve these goals, according to one side of the present utility model, there is provided a kind of screw compressor upper bracket, Including rack body, mutually isolated oil sump and installation groove are provided with rack body, is passed through between oil sump and installation groove The flow-guiding channel connection being arranged on rack body.

Further, oil sump is located at the center of rack body, and flow-guiding channel includes interface channel and transfer passage, and conveying is logical Side wall of the road along the close installation groove of rack body extends, and the upper end of installation groove is extended to from the bottom of rack body, Interface channel is connected between oil sump and transfer passage.

Further, diversion groove and closure are provided with the side wall of the close installation groove of rack body, water conservancy diversion is recessed Groove extends to the upper end of installation groove from the bottom of rack body, and closure lid is located on diversion groove and enclosed with diversion groove and set Form transfer passage.

Further, closure is sheet metal component or stainless steel part.

Further, interface channel includes the first through hole section radially extended along rack body and the axle along rack body To the second through hole section of extension, first through hole section connects with the second through hole section and oil sump respectively, the second through hole section and transfer passage Connection.

Further, the cross-sectional area of first through hole section is more than the cross-sectional area of the second through hole section.

Further, remote oil sump one end of first through hole section is provided with block head.

Further, block head is closure bolt.

Further, it is provided with diversion groove in the side wall of the close installation groove of rack body, diversion groove is from support The bottom of body extends to the upper end of installation groove, and the cross-sectional area for the opening position that diversion groove connects with the second through hole section is more than The cross-sectional area of second through hole section.

Further, the aperture of the second through hole section is less than 2mm.

Further, installation groove includes the keyway at the tip position of rack body, and flow-guiding channel is recessed with installing The communicating position of groove is located in the side wall of keyway.

According to another aspect of the present utility model, there is provided a kind of screw compressor, including upper bracket, upper bracket are above-mentioned Screw compressor.

Using the technical solution of the utility model, due to be provided with the screw compressor upper bracket in the utility model by The flow-guiding channel that the oil sump connects with installation groove, by the effect of the flow-guiding channel, it is easy to convey the fluid in oil sump To installation groove, and then it is easy to be lubricated cross slip-ring, prevents cross slip-ring from wearing, improves ten in the utility model The service life of word slip ring and screw compressor.

Brief description of the drawings

The Figure of description for forming the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 diagrammatically illustrates the sectional view of screw compressor of the present utility model；

Fig. 2 diagrammatically illustrates the front view of screw compressor upper bracket of the present utility model；

Fig. 3 diagrammatically illustrates the sectional view of screw compressor upper bracket of the present utility model；

Fig. 4 diagrammatically illustrates the front view of closure of the present utility model；And

Fig. 5 diagrammatically illustrates the side view of cross slip-ring of the present utility model.

Wherein, above-mentioned accompanying drawing marks including the following drawings：

10th, rack body；11st, installation groove；111st, keyway；12nd, oil sump；13rd, interface channel；131st, first through hole section； 132nd, the second through hole section；14th, transfer passage；141st, diversion groove；142nd, closure；15th, block head；20th, shell；30th, quiet whirlpool Capstan；40th, orbiter；50th, cross slip-ring；60th, lower carriage；70th, oil supply mechanism；80th, rotor；90th, motor stator； 100th, sealing ring；110th, middle pressure chamber；120th, end cap；130th, end cap oil sump；140th, bent axle；143rd, bent axle oil supplying hole.

Embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side The intrinsic other steps of method, product or equipment or unit.

For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.

Referring to shown in Fig. 1 to Fig. 5, according to embodiment of the present utility model, there is provided a kind of screw compressor, the present embodiment In screw compressor especially horizontal type scroll compressor.

Screw compressor in the present embodiment includes shell 20, motor, bent axle 140, lower carriage 60, upper bracket, dynamic vortex Disk 40, cross slip-ring 50, fixed scroll 30 and oil supply mechanism 70 etc..

Wherein, shell 20, which encloses, sets to form installation cavity, and the end set of installation cavity has end cap 120, and end is provided with end cap 120 Lid oil sump 130.Upper bracket and lower carriage 60 are installed in installation cavity, and bent axle 140 is arranged on upper bracket and lower branch by bearing Between frame 60, bent axle 140 and motor drive connection, motor include motor stator 90 and rotor 80, in the axial direction of bent axle 140 Be provided with bent axle oil supplying hole 143, the bent axle oil supplying hole 143 is connected with oil supply mechanism 70, be easy to by end cap oil sump 130 due to It is delivered in bent axle oil supplying hole 143.

Screw compressor orbiter 40, fixed scroll 30 in the present embodiment are intermeshed, so as to form element volume, When orbiter 40 moves with respect to fixed scroll 30, to prevent rotation of the orbiter 40 in motion process, in dynamic vortex A cross slip-ring 50 is placed in installation groove 11 on the bottom groove of disk 40 and upper bracket, the part can effectively prevent orbiter 40 occur rotation.

Orbiter 40, the fixed scroll 30 of screw compressor need sufficient lubricating oil in high-speed cruising, to maintain whirlpool The premium properties and reliability of compressor are revolved, so important friction pair all needs to set fuel feeding path, ensures lubrication.And due to this reality It is that upper bracket and cross slip-ring 50 are arranged vertically, the oil of back pressure cavity in horizontal type scroll compressor to apply the screw compressor in example Under gravity, it is deposited on upper bracket bottom more, the lubrication of the keyway friction pair of cross slip-ring 50 can not be met, cause cross to slide The reliability of ring 50 reduces.

In horizontal type scroll compressor oil piping system, the oil in end cap oil sump 130 enters bent axle 140 by oil supply mechanism 70 Internal bent axle oil supplying hole 143, due to the increase of kinetic energy, the oil inside bent axle 140 can rise to crankshaft eccentric portion, lubricate Moving plate After bearing, into upper bracket oil sump 12 (back pressure oil sump), the periphery of upper bracket oil sump 12 sets sealing ring 100, high and low for splitting Back pressure, belong to hyperbaric environment in upper bracket oil sump 12, the peripheral middle pressure chamber 110 of sealing ring 100 belongs to middle pressure ring border.In view of cross Pressure at the keyway 111 of slip ring 50 is middle pressure, by setting flow-guiding channel that the oil at upper bracket oil sump 12 is drained into top At the keyway 111 of cross slip-ring 50, so as to realize the stable lubrication of upper cross slip ring 50.

Specifically, the screw compressor upper bracket in the present embodiment includes rack body 10, is set on rack body 10 There are mutually isolated oil sump 12 and the installation groove 11 for installing cross slip-ring 50, pass through between oil sump 12 and installation groove 11 The flow-guiding channel connection being arranged on rack body 10, by being provided with the screw compressor upper bracket in the present embodiment by institute The flow-guiding channel that oil sump 12 connects with installation groove 11 is stated, by the effect of the flow-guiding channel, is easy to the fluid in oil sump 12 It is delivered at installation groove 11, and then is easy to be lubricated cross slip-ring 50, prevents cross slip-ring 50 from wearing, improve this implementation The service life of cross slip-ring 50 and screw compressor in example.

When actual design, oil sump 12 is located at the center of rack body 10, and flow-guiding channel includes the He of interface channel 13 Transfer passage 14, side wall extension of the transfer passage 14 along the close installation groove 11 of rack body 10, and from rack body 10 Bottom extends to the upper end of installation groove 11, and interface channel 13 is connected between oil sump 12 and transfer passage 14.

By the effect of interface channel 13, it is easy to the fluid in oil sump 12 being delivered in transfer passage 14, passes through conveying The effect of passage 14, is easy to fluid being delivered to the upper end of installation groove 11, and then is easy to the top progress to cross slip-ring 50 Lubrication, improve the lubricating reliability of cross slip-ring 50.

For the ease of processing, water conservancy diversion is provided with the side wall of the close installation groove 11 of the rack body 10 in the present embodiment Groove 141 and closure 142, diversion groove 141 extend to the upper end of installation groove 11, closure from the bottom of rack body 10 142 lids are located on diversion groove 141 and enclose to set to form transfer passage 14 with diversion groove 141.During processing, first in rack body Processing forms diversion groove 141 on 10, and then the lid of closure 142 is located on diversion groove 141 and enclosed with diversion groove 141 and sets Transfer passage 14 is formed, it is simple in construction, it is easy to implement.Upper end in the present embodiment, top each mean horizontal type scroll compressor reality Upper end and top when border works.

Preferably, the closure 142 in the present embodiment is sheet metal component, and during installation, directly passing through the mechanisms such as screw, bolt will The sheet metal component is fixed on rack body 10.Certainly, can also be by closure in other embodiment of the present utility model 142 use stainless steel belt punch forming, and then the side wall for being provided with diversion groove 141 with rack body 10 is consolidated by bolt It is fixed, it is simple in construction, it is easy to ensure the flatness of the side wall of the diversion groove 141 being provided with of rack body 10.In this reality With in new other embodiment, closure 142 can also be made using other wear-resisting materials.

Preferably, interface channel 13 is included along the first through hole section 131 radially extended of rack body 10 and along support sheet The second axially extending through hole section 132 of body 10, first through hole section 131 connect with the second through hole section 132 and oil sump 12 respectively, the Two through hole sections 132 connect with transfer passage 14.Interface channel 13 is arranged to lead to along radially extend the first of rack body 10 Hole section 131 and the second axially extending through hole section 132 along rack body 10, are easy to machine-shaping.

Refrigeration oil in oil sump 12, need to set could be oil along the second axially extending through hole section 132 of rack body 10 Drain into transfer passage 14, consider processing technology, need to process to form first through hole section 131, the remote oil of first through hole section 131 The one end of pond 12 is provided with block head 15, is easy to block first through hole section 131, you can convenient processing, is not in letting out for oil again Leakage.

Block head 15 is closure bolt, and the closure bolt and the afterbody of first through hole section 131 are coordinated using screw thread, ensure that All without releasing under long-term working order.Second through hole section 132 and the arranged crosswise of first through hole section 131, the second through hole section 132 sectional area is much smaller than the area of first through hole section 131, and the aperture below diameter 2mm is preferred in the second through hole section 132, To adapt to the restriction effect of High Pressure Difference operating mode.Diversion groove 141 and the cross-sectional area of the junction of the second through hole section 132 are more than The cross-sectional area of second through hole section 132, its function are the refrigeration oils after storage throttling, and the width of diversion groove 141 is unsuitable excessive, Avoid oily excessive to drawing for cross slip-ring 50, cause the resistance of friction pair increase, power consumption increase, diversion groove 141 removes and the It is close or equal with the cross-sectional area of the second through hole section 132 that the link position of two through hole section 132 sentences outer cross-sectional area.

Installation groove 11 in the present embodiment includes the keyway 111 at the tip position of upper bracket, flow-guiding channel with The communicating position of installation groove 11 is located in the side wall of keyway 111.

According to the above embodiments it is recognised that the utility model at the oil sump 12 of rack body 10 by establishing cross The oily path of slip ring 50, the oily path is by first through hole section 131, the second through hole section 132, diversion groove 141,142 groups of closure Into by the hydraulic oil of back pressure oil sump being drained into the installation groove 11 of upper bracket and cross slip-ring 50, the second through hole section 132 saves Oil after stream is changed into middle force feed (pressure is higher than the pressure of compressor air suction mouth), will not be to the gas pressurized or refrigerant of back pressure cavity Separate out, so the connection between high and low pressure will not be brought.Middle force feed is led in the diversion groove 141 of upper bracket with second first The opening position that hole section 132 connects is collected, and it is not in interrupted to ensure fuel feeding.For the ease of processing, the water conservancy diversion in the utility model Groove 141 is arranged on the side of close installation groove 11 on upper bracket body, it is necessary to sets closure 142 to be used to cover water conservancy diversion Groove 141, so as to realize the sealing of oily path, force feed can smoothly drain into the keyway 111 of the upper end of cross slip-ring 50 in guarantee Place, it will not cause that drainage time is long or effect is bad because of the Action of Gravity Field of oil.

It can be seen that the utility model oil circuit uses high pressure drainage way, fuel feeding is rapid, overcomes horizontal type scroll compressor start During the regular petrol starvation of cross slip-ring keyway；Set by being lubricated oil circuit at cross slip-ring keyway position, keyway Lubrication is abundant, and reliability improves.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (12)

1. a kind of screw compressor upper bracket, it is characterised in that including rack body (10), set on the rack body (10) There are mutually isolated oil sump (12) and installation groove (11), pass through setting between the oil sump (12) and the installation groove (11) Flow-guiding channel connection on the rack body (10).

2. screw compressor upper bracket according to claim 1, it is characterised in that the oil sump (12) is located at the support The center of body (10), the flow-guiding channel include interface channel (13) and transfer passage (14), transfer passage (14) edge The side wall extension of the close installation groove (11) of the rack body (10), and prolong from the bottom of the rack body (10) The upper end of the installation groove (11) is extended, the interface channel (13) is connected to the oil sump (12) and the transfer passage (14) between.

3. screw compressor upper bracket according to claim 2, it is characterised in that the close institute of the rack body (10) State and diversion groove (141) and closure (142) are provided with the side wall of installation groove (11), the diversion groove (141) is from institute The bottom for stating rack body (10) extends to the upper end of the installation groove (11), and closure (142) lid is located at described lead Enclose to set to form the transfer passage (14) on stream groove (141) and with the diversion groove (141).

4. screw compressor upper bracket according to claim 3, it is characterised in that the closure (142) is sheet metal component Or stainless steel part.

5. compressor upper bracket according to claim 2, it is characterised in that the interface channel (13) is included along the branch The first through hole section (131) radially extended of frame body (10) and the second axially extending through hole along the rack body (10) Section (132), the first through hole section (131) connects with second through hole section (132) and the oil sump (12) respectively, and described the Two through hole sections (132) connect with the transfer passage (14).

6. compressor upper bracket according to claim 5, it is characterised in that the cross section of the first through hole section (131) Cross-sectional area of the product more than second through hole section (132).

7. compressor upper bracket according to claim 5, it is characterised in that the remote institute of the first through hole section (131) State oil sump (12) one end and be provided with block head (15).

8. compressor upper bracket according to claim 7, it is characterised in that the block head (15) is closure bolt.

9. compressor upper bracket according to claim 5, it is characterised in that the close peace of the rack body (10) Diversion groove (141) is provided with the side wall of dress groove (11), and the diversion groove (141) is from the bottom of the rack body (10) Portion extends to the upper end of the installation groove (11), the position that the diversion groove (141) connects with second through hole section (132) The cross-sectional area for putting place is more than the cross-sectional area of second through hole section (132).

10. compressor upper bracket according to claim 5, it is characterised in that the aperture of second through hole section (132) is small In 2mm.

11. compressor upper bracket according to any one of claim 1 to 10, it is characterised in that the installation groove (11) keyway (111) at the tip position of the rack body (10) is included, the flow-guiding channel and the installation are recessed The communicating position of groove (11) is located in the side wall of the keyway (111).

12. a kind of screw compressor, including upper bracket, it is characterised in that the upper bracket is any one of claim 1 to 11 Described screw compressor.