CN205349741U - Single screw compressor with adjustable star wheel axle system - Google Patents
Single screw compressor with adjustable star wheel axle system Download PDFInfo
- Publication number
- CN205349741U CN205349741U CN201521130259.4U CN201521130259U CN205349741U CN 205349741 U CN205349741 U CN 205349741U CN 201521130259 U CN201521130259 U CN 201521130259U CN 205349741 U CN205349741 U CN 205349741U
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- screw
- bearing
- swivel nut
- bearing block
- nut body
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- Expired - Fee Related
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Abstract
The utility model discloses a single screw compressor with adjustable star wheel axle system, its star wheel clearance adjusts efficient, good reliability. This single screw compressor with adjustable star wheel axle system, it is equipped with the screw to include on bearing frame no. 1, the screw is linked together with storage cavity no. 1, the cover has the minute adjustment swivel nut in the screw, the minute adjustment swivel nut includes the swivel nut body of threaded connection in the screw, and the swivel nut body still forms the roof pressure cooperation with the outer lane of bearing no. 1, be equipped with the holding screw hole in the swivel nut body, threaded connection has holding screw in the holding screw hole, still be equipped with inner sleeve hole in the swivel nut body, sliding fit has the endotheca among the inner sleeve hole, including sheathe in and be equipped with the thread section in the one side relative with the screw, the screw thread looks interlock of thread section and screw, make the endotheca have the position of tightly supporting with the screw and relieve the position that endotheca and screw tightly supported with the help of holding screw.
Description
Technical field
This utility model belongs to the technical field of single screw compressor, concretely relates to the spider gear shaft architecture on a kind of helical-lobe compressor.
Background technology
Single screw compressor is the Meshing Pair of the high-accuracy engagement of a screw rod and two star-wheel compositions, and its mesh degree directly affects the efficiency of single screw compressor.Affect this factor to the Meshing Pair accuracy of mesh and be not only the machining accuracy of screw rod and star-wheel, also have the star-wheel positional precision relative to screw rod.Controlling star-wheel is the star-wheel gap from casing divisional plane relative to the one of which of the positional precision of screw rod, and this gap is a definite value after unit design completes, and should not become and also should not diminish greatly.The structure being used for adjusting and controlling this gap on market generally has three kinds, respectively: trim tab adjustment, adjusting pad adjustment and adjustment screw adjustment.
The gap between star-wheel and casing divisional plane is controlled by the quantity of the thickness of match grinding trim tab or increase and decrease adjusting pad when trim tab adjustment and adjusting pad are adjusted to assembled in situ, both adjusts mode and can ensure that this gap will not change in unit running process, reliability is higher, but equipment adjustment is inefficient, in order to ensure that above-mentioned gap is in rational scope, often will through being dismounted for multiple times, not only time-consuming but also take a lot of work.
Regulate screw to adjust the screw that regulates of the many employings of structure and promote the position of bearing thus by above-mentioned clearance control in rational scope, this solves the problem that unit efficiency of assembling is low, but the end face diameter because regulating screw is less, and star-wheel has very big axial force, regulate the easy stress deformation of face, time again because running, the vibration adjustment screw of unit is very easily loosening, and reliability is poor.
Summary of the invention
The purpose of this utility model is to provide the adjustable single screw compressor of a kind of spider gear shaft system, and its star-wheel gap adjustment efficiency is high, good reliability.
For solving above-mentioned technical problem, the purpose of this utility model is achieved in that
Including casing, casing is provided with the first mechanically-sealing apparatus and the second mechanically-sealing apparatus, screw shaft forms sealing by the first mechanically-sealing apparatus and the second mechanically-sealing apparatus with casing and coordinates, and the free end of screw shaft is exposed at the outside of the first mechanically-sealing apparatus and is connected with the inner ring of free end bearing, the power end of screw shaft is exposed at the outside of the second mechanically-sealing apparatus and is connected with the inner ring of fixing end bearing, fixing end bearing and free end bearing are respectively arranged in fixing end bearing block and free end shaft bearing, fixing end bearing block and free end shaft bearing are respectively arranged on the two ends of casing, it is fixed on the screw rod on screw shaft and two symmetrically arranged star-wheels of one-tenth are meshed, star-wheel is fixed on star wheel frame, star wheel frame is located on spider gear shaft, one end of spider gear shaft is connected with the inner ring of bearing one, the other end of spider gear shaft is connected with the inner ring of bearing two, bearing one is located in the receiving compartment one of bearing block one, and bearing one is formed with bearing block one and is slidably matched, bearing two is located in the receiving compartment two of bearing block two, bearing two is formed with bearing block two and is slidably matched, bearing block two is provided with the governor motion for pushing and withstanding bearing two；Bearing block one is provided with screw, screw is connected with receiving compartment one, screw is cased with fine adjustment swivel nut, fine adjustment swivel nut includes the swivel nut body being threaded in screw, and swivel nut body also forms top press-fit with the outer ring of bearing one, swivel nut body is provided with set screw hole, threaded in set screw hole have holding screw, swivel nut body is additionally provided with interior trepanning, interior trepanning is sliding combined with inner sleeve, one side relative with screw on interior set is provided with threaded section, threaded section is engaged mutually with the screw thread of screw, by holding screw make inner sleeve have with screw tight against position and release inner sleeve and screw tight against position.
On the basis of such scheme and as the preferred version of such scheme: being detachably connected with lid on bearing block one, lid covers screw.
On the basis of such scheme and as the preferred version of such scheme: governor motion includes the screw being threaded on bearing block two, the head of screw is butted on the bottom of pressure cap, the outer ring of the top of pressure cap and bearing two offsets, and by spring, pressure cap is pushed bearing two to.
On the basis of such scheme and as the preferred version of such scheme: described spring is stage clip, one end of stage clip and pressure cap offset, and the other end of stage clip and bearing block two offset.
This utility model highlights and useful having the technical effect that compared to existing technology
The adjustable single screw compressor of spider gear shaft system of the present utility model, by arranging screw on bearing block one, the structure that swivel nut body is threadeded with screw, adjust the gap of star-wheel and the divisional plane of casing whereby, by arranging the structure of holding screw and inner sleeve, the gap after also assures that adjustment while fixing swivel nut body with the relative position of screw does not change.
Accompanying drawing explanation
Fig. 1 is integrally-built sectional view of the present utility model.
Fig. 2 is the sectional view of partial structurtes of the present utility model.
Fig. 3 is the structural representation of fine adjustment swivel nut of the present utility model.
Detailed description of the invention
This utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1 Fig. 2；
This gives the adjustable single screw compressor of a kind of spider gear shaft system, including casing 10, casing is provided with the first mechanically-sealing apparatus 101 and the second mechanically-sealing apparatus 102, screw shaft forms sealing by the first mechanically-sealing apparatus and the second mechanically-sealing apparatus with casing and coordinates, and the free end 201 of screw shaft is exposed at the outside of the first mechanically-sealing apparatus and is connected with the inner ring 301 of free end bearing 30, the power end 202 of screw shaft is exposed at the outside of the second mechanically-sealing apparatus and is connected with the inner ring 401 of fixing end bearing 40, fixing end bearing and free end bearing are respectively arranged in fixing end bearing block 50 and free end shaft bearing 60, fixing end bearing block 50 and free end shaft bearing 60 are respectively arranged on the two ends of casing 10, screw shaft is fixed with screw rod, screw rod 20 also becomes symmetrically arranged star-wheel 5 to be meshed with two, star-wheel 5 is fixed on star wheel frame, star wheel frame is located on spider gear shaft.
Also include the bearing block 1 for assembling spider gear shaft and bearing block 22, bearing block one is provided with receiving compartment 1, receiving compartment one is provided with bearing 1, the internal diameter of receiving compartment 1 is suitable with the external diameter of bearing 1, bearing 1 is formed with bearing block 1 and is slidably matched, when bearing one accepts an axial force, bearing one can move along the axis direction of bearing one in receiving compartment one.Bearing block 22 is provided with receiving compartment 2 21, receiving compartment two is provided with bearing 24, the internal diameter of receiving compartment two is suitable with the external diameter of bearing two, bearing 24 is formed with axle sleeve bearing 22 and is slidably matched, when bearing two accepts an axial force, bearing two can move along the axis direction of bearing two in receiving compartment two.
One end 31 of spider gear shaft is connected with the inner ring of bearing 1, and as shown in FIG., one end 31 of spider gear shaft is inserted in the inner ring of bearing 1, and the inner ring of bearing 1 also offsets with the convex shoulder 1 on spider gear shaft.The other end 32 of spider gear shaft is connected with the inner ring of bearing 24, and as shown in FIG., the other end 32 of spider gear shaft inserts in the inner ring of bearing 24, and the inner ring of bearing two also offsets with the convex shoulder 2 34 on spider gear shaft.
Being provided with governor motion on bearing block 22, it is used for pushing and withstanding bearing 24, by the structure of convex shoulder two, so that spider gear shaft obtains axial chucking power.
As shown in FIG., bearing block 1 is provided with screw 12, screw 12 is connected with receiving compartment 1, screw 12 is cased with fine adjustment swivel nut, fine adjustment swivel nut includes swivel nut body 61, and it is threadeded with screw, referring to Fig. 2, the lateral surface of swivel nut body is provided with external screw thread, and it is suitable with the thread of screw.Swivel nut body also forms top press-fit with the outer ring of bearing one, and in the present embodiment, swivel nut body is pressed on the outer ring of bearing 1 by gland 7 top, and certainly, gland can also adopt plane bearing to replace.During use, by rotary threaded sleeve body so that swivel nut body is screwed into relative to screw or pine withdraws, spider gear shaft is made to drive star wheel frame to move in the axial direction, thus realizing the gap adjusting star-wheel with the divisional plane 100 of casing.Swivel nut body 61 is provided with set screw hole 62, threaded in set screw hole 62 have holding screw 63, swivel nut body is additionally provided with interior trepanning 64, it is connected with set screw hole 62, interior trepanning 64 is sliding combined with inner sleeve 65, one end relative with screw on interior set is provided with threaded section 66, and it is for being engaged mutually with the thread in screw.By holding screw make inner sleeve have with screw tight against position and release inner sleeve and screw tight against position, specifically, when tightening holding screw, by the pushing tow of holding screw, make inner sleeve sting tightly with the thread on screw, make swivel nut body and screw keep fixing；After pine moves back holding screw, inner sleeve releases with the thread on screw and stings tight state so that swivel nut body can rotate relative to screw, to adjust the relative position both it, adjusts the gap of star-wheel and the divisional plane of casing whereby.Additionally, due to the rotation direction of the rotation direction of holding screw and swivel nut body differs, adopt this structure, after gap is adjusted in place, swivel nut body can also be avoided to rotate when fastening holding screw, it is ensured that the star-wheel gap after adjustment does not change.
In the present embodiment, being detachably connected with lid 8 on bearing block 1, lid 8 covers screw 12.
As shown in FIG., in the present embodiment, above-mentioned governor motion includes the screw 91 being threaded on bearing block 22, as shown in FIG., is provided with screwed hole on bearing block 22, and screw 91 is threaded in this screwed hole, and the head of screw stretches in receiving compartment 2 21.The head of screw is butted on the bottom of pressure cap 92, and the top of pressure cap 92 is flange collar shape, and its outer ring with bearing 22 offsets, and by spring 93, pressure cap is pushed bearing two to.
In the present embodiment, described spring 93 is stage clip, and one end of stage clip and pressure cap 92 offset, and the other end of stage clip and bearing block 22 offset.As shown in FIG., stage clip is butted on the diapire of receiving compartment 2 21.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (4)
1. the adjustable single screw compressor of spider gear shaft system, including casing, casing is provided with the first mechanically-sealing apparatus and the second mechanically-sealing apparatus, screw shaft forms sealing by the first mechanically-sealing apparatus and the second mechanically-sealing apparatus with casing and coordinates, and the free end of screw shaft is exposed at the outside of the first mechanically-sealing apparatus and is connected with the inner ring of free end bearing, the power end of screw shaft is exposed at the outside of the second mechanically-sealing apparatus and is connected with the inner ring of fixing end bearing, fixing end bearing and free end bearing are respectively arranged in fixing end bearing block and free end shaft bearing, fixing end bearing block and free end shaft bearing are respectively arranged on the two ends of casing, it is fixed on the screw rod on screw shaft and two symmetrically arranged star-wheels of one-tenth are meshed, star-wheel is fixed on star wheel frame, star wheel frame is located on spider gear shaft, one end of spider gear shaft is connected with the inner ring of bearing one, the other end of spider gear shaft is connected with the inner ring of bearing two, bearing one is located in the receiving compartment one of bearing block one, and bearing one is formed with bearing block one and is slidably matched, bearing two is located in the receiving compartment two of bearing block two, bearing two is formed with bearing block two and is slidably matched, bearing block two is provided with the governor motion for pushing and withstanding bearing two；It is characterized in that: on bearing block one, be provided with screw, screw is connected with receiving compartment one, screw is cased with fine adjustment swivel nut, fine adjustment swivel nut includes the swivel nut body being threaded in screw, and swivel nut body also forms top press-fit with the outer ring of bearing one, swivel nut body is provided with set screw hole, threaded in set screw hole have holding screw, swivel nut body is additionally provided with interior trepanning, interior trepanning is sliding combined with inner sleeve, one side relative with screw on interior set is provided with threaded section, threaded section is engaged mutually with the screw thread of screw, by holding screw make inner sleeve have with screw tight against position and release inner sleeve and screw tight against position.
2. the adjustable single screw compressor of spider gear shaft system according to claim 1, it is characterised in that: being detachably connected with lid on bearing block one, lid covers screw.
3. the adjustable single screw compressor of spider gear shaft system according to claim 1, it is characterized in that: governor motion includes the screw being threaded on bearing block two, the head of screw is butted on the bottom of pressure cap, and the outer ring of the top of pressure cap and bearing two offsets, and by spring, pressure cap is pushed bearing two to.
4. the adjustable single screw compressor of spider gear shaft system according to claim 3, it is characterised in that: described spring is stage clip, and one end of stage clip and pressure cap offset, and the other end of stage clip and bearing block two offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130259.4U CN205349741U (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with adjustable star wheel axle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130259.4U CN205349741U (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with adjustable star wheel axle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349741U true CN205349741U (en) | 2016-06-29 |
Family
ID=56173263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521130259.4U Expired - Fee Related CN205349741U (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with adjustable star wheel axle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349741U (en) |
-
2015
- 2015-12-30 CN CN201521130259.4U patent/CN205349741U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20171230 |