CN202612104U - Limiting device for screw pump stator joint - Google Patents
Limiting device for screw pump stator joint Download PDFInfo
- Publication number
- CN202612104U CN202612104U CN 201220298923 CN201220298923U CN202612104U CN 202612104 U CN202612104 U CN 202612104U CN 201220298923 CN201220298923 CN 201220298923 CN 201220298923 U CN201220298923 U CN 201220298923U CN 202612104 U CN202612104 U CN 202612104U
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- hole
- screw pump
- pump stator
- connecting sleeve
- counterbore
- Prior art date
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
A limiting device for a screw pump stator joint comprises a connecting sleeve (2) and an annular connecting block (3), wherein the connecting sleeve (2) is rotatably connected with one end of the screw pump stator (1), and the annular connecting block (3) is connected with the other end of the screw pump stator (1). Threads are arranged on the inner wall of the connecting sleeve (2) and on the outer circumferential surface of the connecting block (3), the connecting sleeve (2) can be screwed with the connecting block (3), at least one first limiting hole (7) for circumferential limiting is arranged between the connecting sleeve (2) and one end of the screw pump stator (1) and is a threaded hole, and a limiting screw (6) is arranged in each first limiting hole (7). Compared with the prior art, the limiting device has the advantages of simplicity in terminable maintenance and low maintenance cost as the first limiting holes are threaded holes, the limiting screws are arranged in the first limiting holes, the connecting sleeve and one end of the screw pump stator can be circumferentially limited by screwing the limiting screws into the first limiting holes when assembly is completed, the limiting screws can be unscrewed by a screwdriver without damaging the connecting sleeve, the connecting block or the screw pump stator when in later maintenance, the limiting device is simple and convenient to operate and fine in safety, the unscrewed limiting screws can be reused, and waste is avoided.
Description
Technical field
The utility model belongs to the limit stoper that relates to a kind of screw pump stator joint.
Background technique
At present; The limit stoper of the screw pump stator joint of existing technology comprises connecting sleeve that is rotatably connected on screw pump stator one end and the piece that is threaded that is connected the screw pump stator the other end; Connecting sleeve can be threaded with the piece that is threaded, and realizes but spacing between connecting sleeve and the screw pump stator and between connecting sleeve, contiguous block and the screw pump stator all is combinations through spacing hole and rivet, then in spacing hole, stamp rivet after; When maintaining need be taken apart; Just be difficult to rivet is taken out from spacing hole, and the rivet that takes out can't reuse, even when taking out rivet, the situation of connecting sleeve, contiguous block or screw pump stator can occur destroying; Therefore the maintaining in later stage bothers, and maintenance cost is higher.
The model utility content
The utility model provides the maintaining in a kind of later stage simpler to above problem, and the limit stoper of the lower screw pump stator joint of maintenance cost.
The utility model overcomes the above problems used technological scheme: a kind of limit stoper with screw pump stator joint of following structure is provided; It comprises the contiguous block of connecting sleeve that is rotationally connected with screw pump stator one end and the annular that is connected with the screw pump stator the other end; The inwall of described connecting sleeve and contiguous block outer circumferential face are equipped with screw thread; Described connecting sleeve can screw with contiguous block; Be provided with between described connecting sleeve and screw pump stator one end and be used for circumferentially spacing at least one first spacing hole, described first spacing hole is a tapped hole, is equipped with stop screw in described first spacing hole.
After adopting above structure, compared with prior art, the utility model is a tapped hole owing to first spacing hole, and is equipped with stop screw in first spacing hole; Then when assembling is accomplished, with stop screw screw in first spacing hole can carry out connecting sleeve and screw pump stator one end circumferentially spacing, and when later maintenance is maintained; Through bottle opener the stop screw back-out is got final product, the situation of connecting sleeve, contiguous block or screw pump stator can not occur destroying, operate easier; Security is better, and it is reusable to screw out stop screw, does not produce waste; Therefore maintenance cost is lower, and it is simpler to the utlity model has the maintaining of phase, and the lower characteristics of maintenance cost.
As improvement, described at least one spacing hole circumferentially evenly distributes along connecting sleeve, then when assembling; Only needing to aim at other spacing hole of spacing hole can aim at simultaneously; So aim at easily, and then can improve efficiency of assembling, make that the assembling of the utility model is simpler.
As further improvement; Described first spacing hole comprises first through hole and first counterbore, and described first through hole is located on the connecting sleeve, and the axis normal of the axis of first through hole and connecting sleeve; Described first counterbore is positioned at the end that screw pump stator is connected with connecting sleeve; The axis of the axis of first through hole and first counterbore was on same straight line when described connecting sleeve and contiguous block screwed, and then the spacing hole structure of this structure is simpler, also was easy to processing; Thereby help reducing the cost of production of the utility model, and improve the efficiency of assembling of the utility model.
As further improving, described first counterbore also is meant that for tapped hole nearer part is provided with internal thread to the first counterbore hole wall from the surface again, and remaining part is a smooth surface; Described second counterbore also is meant that for tapped hole nearer part is provided with internal thread to the second counterbore hole wall from the surface, and remaining part is a smooth surface; The end of the nearly screw pump stator of described stop screw is provided with columniform convexity, and the axis of described convexity and the axis of stop screw are on same straight line.After then the counterbore of this structure and stop screw cooperated, in the process that stop screw screws, the convexity of stop screw end at first got in the hole, plays the effect of a guiding, helps stop screw is screwed fast in spacing hole; And in protruding and the counterbore unthreaded hole cooperate the close-fitting effect preferably of playing; Make stop screw higher to the spacing accuracy between connecting sleeve and the screw pump stator; Stability is better, and then makes that the efficiency of assembling of the utility model is higher, and stability in use is better.
As further improving again, be provided with at least one second spacing hole between described connecting sleeve, contiguous block and the screw pump stator, described second spacing hole is a tapped hole; And also be provided with stop screw in second spacing hole, then when assembling was accomplished, stop screw is screwed in second spacing hole can carry out circumferentially spacing to connecting sleeve, contiguous block and the screw pump stator the other end; And when later maintenance is maintained, the stop screw back-out is got final product, the situation of connecting sleeve, contiguous block or screw pump stator can not occur destroying through bottle opener; Operate easylier, Security is better, and it is reusable to screw out stop screw; Do not produce waste; Maintenance cost is lower, and then makes that the utility model later maintenance is easier, and maintenance cost is lower.
As further improving again; Described second spacing hole include be located at connecting sleeve away from second through hole of first through hole, one end, be located at the third through-hole on the contiguous block and be located at second counterbore of the screw pump stator the other end; Described second through hole, third through-hole and second counterbore are tapped hole, and with after connecting sleeve and screw pump stator are connected, the axis of the axis of second through hole, the axis of third through-hole and second counterbore is all on same straight line at contiguous block; Then the spacing hole structure of this structure is simpler; Be easy to processing, thereby help further reducing the cost of production of the utility model, and further improve the efficiency of assembling of the utility model.
As preferably, described spacing hole is four.
Description of drawings
Fig. 1 is the structural representation of the limit stoper of a kind of screw pump stator joint of the utility model.
Fig. 2 is the structure for amplifying schematic representation of A part among Fig. 1.
As shown in the figure: 1, screw pump stator, 2, connecting sleeve, 3, contiguous block, 4, first through hole, 5, first counterbore, 6, stop screw, 7, first spacing hole, 8, second spacing hole, 9, second through hole, 10, third through-hole, 11, second counterbore.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model done further describing.
The limit stoper of a kind of screw pump stator joint as depicted in figs. 1 and 2; It comprises the contiguous block 3 of connecting sleeve 2 that is rotationally connected with screw pump stator 1 one ends and the annular that is connected with screw pump stator 1 the other end; The inwall of described connecting sleeve 2 and contiguous block 3 outer circumferential faces are equipped with screw thread; Described connecting sleeve 2 can screw with contiguous block 3, it is characterized in that: be provided with between described connecting sleeve 2 and screw pump stator 1 one ends and be used for circumferentially spacing at least one first spacing hole 7 (this example is four, also can be two, three, five, six or eight or the like); Described first spacing hole 7 is a tapped hole, is equipped with stop screw 6 in described first spacing hole 7.
Described at least one first spacing hole 7 circumferentially evenly distributes along connecting sleeve 2, also can be regarded as first spacing hole 7 circumferentially evenly distributing along screw pump stator 1.
Described first spacing hole 7 comprises first through hole 4 and first counterbore 5; Described first through hole 4 is located on the connecting sleeve 2; First through hole 4 is a tapped hole, and the axis normal of the axis of first through hole 4 and connecting sleeve 2, and described first counterbore 5 is positioned at the end that screw pump stator 1 is connected with connecting sleeve 2; And first counterbore 5 also is a tapped hole; The axis of the axis of first through hole 4 and first counterbore 5 was on same straight line when described connecting sleeve 2 screwed with contiguous block 3, and promptly when the screw pump stator joint connected adjacent two screw pump stators 1, the axis of the axis of first through hole 4 and first counterbore 5 was on same straight line.Also can be regarded as one first through hole, 4 corresponding one first counterbores 5.
Described first counterbore 5 also is meant that for tapped hole nearer part is provided with internal thread to first counterbore, 5 hole walls from the surface; Remaining part is a smooth surface; The hole wall that also can be regarded as first counterbore 5 is made up of internal thread part and light wall portion; Wherein internal thread part is positioned on the hole wall of nearly first counterbore, 5 openings, and light wall portion is near nearly first counterbore 5 bottoms.
(this example is four to be provided with at least one second spacing hole 8 between described connecting sleeve 2, contiguous block 3 and the screw pump stator 1; Also can be two, three, five, six or eight or the like); Certainly; Also along circumferentially being uniformly distributed with, described second spacing hole 8 is a tapped hole to described second spacing hole 8, and also is provided with stop screw 6 in second spacing hole 8.
The end of described stop screw 6 nearly screw pump stators 1 is provided with columniform protruding 6.1, and the axis of described protruding 6.1 axis and stop screw 6 also can be regarded as stop screw 6 and is made up of thread rod part and polished rod portion on same straight line.
Described second spacing hole 8 include be located at connecting sleeve 2 away from second through hole 9 on first through hole, 7 one ends, be located at the third through-hole 10 on the contiguous block 3 and be located at second counterbore 11 of screw pump stator 1 the other end; Described second through hole 9, third through-hole 10 and second counterbore 11 are tapped hole; At contiguous block 3 with after connecting sleeve 2 and screw pump stator 1 are connected; The axis of the axis of the axis of second through hole 9, third through-hole 10 and second counterbore 11 is all on same straight line; Promptly screw and after connecting sleeve 2 screws with screw pump stator 1 at contiguous block 3 and connecting sleeve 2; This moment second through hole 9 the axis of axis and second counterbore 11 of axis, third through-hole 10 all on same straight line, also can think one second through hole, 9 a corresponding third through-hole 10 and one second counterbores 11.
Described second counterbore 11 also is meant that for tapped hole nearer part is provided with internal thread to second counterbore, 11 hole walls from the surface, and remaining part is a smooth surface, and second counterbore 11 is identical with the structure of first counterbore 5.
During assembling; Earlier connecting sleeve 2 is inserted in screw pump stator 1 from the end that screw pump stator 1 needs to connect contiguous block 3; Because be provided with radial protrusion near screw pump stator 1 and the end that connecting sleeve 2 is connected, for the inwall of connecting sleeve 2 also is provided with the step that cooperates with this convexity to connecting sleeve 2 axial limitings; Subsequently contiguous block 3 is screwed on the outside thread of screw pump stator 1 and get final product.In the time of need two screw pump stators 1 being linked together; Contiguous block 3 on connecting sleeve on the screw pump stator 12 and another root screw pump stator 1 is screwed; The axis of first through hole 4 and the axis of first counterbore 5 are formed first spacing hole 7 on same straight line at this moment; And the axis of the axis of the axis of second through hole 9, third through-hole 10 and second counterbore 11 all forms second spacing hole 8 on same straight line, and in first spacing hole 7 and second spacing hole 8, all screws upper limit screw 6 and get final product.
Above embodiment is merely the preferred embodiment of the utility model, and the utility model is not limited only to above embodiment and also allows other structural change, allly in the utility model rights to independence claimed range, changes, and all belongs to the utility model protection domain.
Claims (9)
1. the limit stoper of a screw pump stator joint; It comprises the contiguous block (3) of connecting sleeve (2) that is rotationally connected with screw pump stator (1) one end and the annular that is connected with screw pump stator (1) the other end; The inwall of described connecting sleeve (2) and contiguous block (3) outer circumferential face are equipped with screw thread; Described connecting sleeve (2) can screw with contiguous block (3); It is characterized in that: be provided with between described connecting sleeve (2) and screw pump stator (1) one end and be used for circumferentially spacing at least one first spacing hole (7), described first spacing hole (7) is a tapped hole, is equipped with stop screw (6) in described first spacing hole (7).
2. the limit stoper of screw pump stator joint according to claim 1 is characterized in that: described at least one first spacing hole (7) circumferentially evenly distributes along connecting sleeve (2).
3. the limit stoper of screw pump stator joint according to claim 2; It is characterized in that: described first spacing hole (7) comprises first through hole (4) and first counterbore (5); Described first through hole (4) is located on the connecting sleeve (2); First through hole (4) is a tapped hole, and the axis normal of the axis of first through hole (4) and connecting sleeve (2), and described first counterbore (5) is positioned at the end that screw pump stator (1) is connected with connecting sleeve (2); And first counterbore (5) also is a tapped hole, and the axis of described connecting sleeve (2) and contiguous block (3) first through hole (4) when screwing and the axis of first counterbore (5) are on same straight line.
4. the limit stoper of screw pump stator joint according to claim 3 is characterized in that: described first counterbore (5) also is meant that for tapped hole nearer part is provided with internal thread to first counterbore (5) hole wall from the surface, and remaining part is a smooth surface.
5. the limit stoper of screw pump stator joint according to claim 2 is characterized in that: described first spacing hole (7) is four.
6. according to the limit stoper of the described screw pump stator joint of claim 1; It is characterized in that: be provided with at least one second spacing hole (8) between described connecting sleeve (2), contiguous block (3) and the screw pump stator (1); Described second spacing hole (8) is a tapped hole, and also is provided with stop screw (6) in second spacing hole (8).
7. the limit stoper according to claim 1 or 6 described screw pump stator joints is characterized in that: the end of the nearly screw pump stator (1) of described stop screw (6) is provided with columniform convexity (6.1), and the axis of the axis of described convexity (6.1) and stop screw (6) is on same straight line.
8. according to the limit stoper of the described screw pump stator joint of claim 6; It is characterized in that: described second spacing hole (8) include be located at connecting sleeve (2) away from second through hole (9) of first through hole (7) one ends, be located at the third through-hole (10) on the contiguous block (3) and be located at second counterbore (11) of screw pump stator (1) the other end; Described second through hole (9), third through-hole (10) and second counterbore (11) are tapped hole; With after connecting sleeve (2) and screw pump stator (1) are connected, the axis of the axis of second through hole (9), third through-hole (10) and the axis of second counterbore (11) are all on same straight line at contiguous block (3).
9. the limit stoper of screw pump stator joint according to claim 8 is characterized in that: described second counterbore (11) also is meant that for tapped hole nearer part is provided with internal thread to second counterbore (11) hole wall from the surface, and remaining part is a smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298923 CN202612104U (en) | 2012-06-26 | 2012-06-26 | Limiting device for screw pump stator joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298923 CN202612104U (en) | 2012-06-26 | 2012-06-26 | Limiting device for screw pump stator joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612104U true CN202612104U (en) | 2012-12-19 |
Family
ID=47345810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298923 Expired - Fee Related CN202612104U (en) | 2012-06-26 | 2012-06-26 | Limiting device for screw pump stator joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387630A (en) * | 2019-08-22 | 2019-10-29 | 际华三五四二纺织有限公司 | A kind of used in jet loom regulating valve handle |
-
2012
- 2012-06-26 CN CN 201220298923 patent/CN202612104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387630A (en) * | 2019-08-22 | 2019-10-29 | 际华三五四二纺织有限公司 | A kind of used in jet loom regulating valve handle |
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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 |
Granted publication date: 20121219 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |