CN211296157U - Pressing plate type cable sealing structure of submersible electric pump - Google Patents
Pressing plate type cable sealing structure of submersible electric pump Download PDFInfo
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- CN211296157U CN211296157U CN201922082104.2U CN201922082104U CN211296157U CN 211296157 U CN211296157 U CN 211296157U CN 201922082104 U CN201922082104 U CN 201922082104U CN 211296157 U CN211296157 U CN 211296157U
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- clamp plate
- cable
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Abstract
The utility model relates to the technical field of machinery, a clamp plate formula submerged motor pump cable seal structure is provided, including bolster bearing housing, be equipped with a sealed chamber in the bolster bearing housing, single core oil-fast line and cable conductor penetrate this sealed intracavity and connect in sealed intracavity, the outside of single core oil-fast line and cable conductor is equipped with the rubber seal layer, and the rubber seal layer outside forms the round retaining ring along circumference, the rubber seal layer is filled in sealed chamber, and the retaining ring supports and follows and compress tightly through the clamp plate at bolster bearing housing's sealed chamber terminal surface week, and this clamp plate passes through the fastener with bolster bearing housing and fixes. Through the clamp plate direct compression rubber sealing layer, simple to operate, the clamp plate evenly compresses the rubber sealing layer in the sealed intracavity of upper bearing frame, realizes sealed, and the security is better, adopts the fixed clamp plate's of fastener mode, and the cable conductor is dragged and is dragged the in-process and can not drive the clamp plate and rotate to avoid the difficult slippage of cable conductor.
Description
Technical Field
The utility model belongs to the technical field of machinery, relate to submerged motor pump, especially, relate to a clamp plate formula submerged motor pump cable seal structure.
Background
Submerged motor pump is the important equipment that the deep well carried water, reveals from the cable conductor in order to prevent the oil in the motor chamber, needs to fix cable conductor and bearing frame sealed to prevent that the cable conductor from breaking away from.
For example, chinese utility model patent [ patent No.: 201721708353.2 discloses a well oil-filled submersible electric pump cable sealing structure, which comprises an upper bearing seat, wherein a sealing cavity is arranged in the upper bearing seat, a single-core oil-resistant wire and a common cable wire penetrate into the sealing cavity and are connected in the sealing cavity, a rubber sealing layer is filled in the sealing cavity, a sheath component with elastic deformation is sleeved outside the rubber sealing layer in the sealing cavity, a gland nut is screwed in the sealing cavity, and the gland nut and the sheath component are tightly matched so as to enable the sheath component to expand along the radial direction and form clamping connection with the rubber sealing layer.
Although above-mentioned technical scheme has the leakproofness good, advantage with low costs, discovery in the use, because gland nut when screwing, promote gasket extrusion sheath, the sheath is along radial expansion compression rubber sealing layer, forms a recess behind the sheath compression rubber sealing layer, with rubber sealing layer joint, improper use of customer, when dragging the cable conductor, it is easy not hard up, the slippage.
Disclosure of Invention
The utility model aims at the problems and provides a pressing plate type cable sealing structure of a submersible electric pump; the technical problem that cables are easy to loosen and slip in the prior art is solved.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a clamp plate formula submerged motor pump cable seal structure creatively, including bolster bearing housing, be equipped with a sealed chamber in the bolster bearing housing, single core oil-fast line and cable conductor penetrate this sealed intracavity and connect in sealed intracavity, the outside of single core oil-fast line and cable conductor is equipped with the rubber seal layer, and the rubber seal layer outside forms the round retaining ring along circumference, the rubber seal layer is filled in sealed chamber, and the retaining ring supports and follows and compress tightly through the clamp plate in bolster bearing housing's sealed chamber terminal surface week, and this clamp plate passes through the fastener with bolster bearing housing and fixes.
In the above-mentioned pressure plate type submersible electric pump cable sealing structure, the inner side of the sealing cavity has a tapered hole, and the diameter of the tapered hole at the side close to the cable connection side is larger than the diameter at the side away from the cable connection side.
In the pressing plate type submersible electric pump cable sealing structure, the upper bearing seat is also provided with a threading hole communicated with the sealing cavity, and a single-core oil-resistant thread penetrates into the threading hole.
In the pressing plate type submersible electric pump cable sealing structure, the rubber sealing layer and the inner end face of the threading hole are pressed and sealed through the gasket.
In the pressing plate type submersible electric pump cable sealing structure, the inner end surface of the threading hole is an inclined surface.
In foretell clamp plate formula submerged motor pump cable seal structure, the sinle silk of single core resistant oil line and cable conductor passes through soldering tin butt joint, and the junction cover of every single core resistant oil line and cable conductor is equipped with heat shrinkage bush to every heat shrinkage bush outside is equipped with rubber support, and the rubber sealing layer wraps up in the rubber support outside.
In the above-mentioned pressing plate type submersible electric pump cable sealing structure, the heat-shrinkable sleeve is located on the inner side of the plane where the inner end face of the retainer ring is located.
In the above-mentioned pressure plate type submersible electric pump cable sealing structure, the outer side surface of the retainer ring of the rubber sealing layer excessively extends with an arc-shaped surface to form a tapered sleeve, the tapered sleeve is sleeved on the outer skin of the cable, and the outer diameter of the tapered sleeve is gradually reduced from the side close to the sealing cavity to the outside.
In the above-mentioned pressing plate type submersible electric pump cable sealing structure, when the pressing plate is attached to the outer end surface of the retainer ring, the pressing plate is fitted and sleeved tightly with the outer side surface of the tapered sleeve of the rubber sealing layer, and the L-shaped folding angle position of the pressing plate is an arc shape attached to the arc surface of the rubber sealing layer.
In the above-mentioned pressure plate type submersible electric pump cable seal structure, the fastener is a screw.
Compared with the prior art, the utility model has the advantages of:
1) through the clamp plate direct compression rubber sealing layer, simple to operate, the clamp plate evenly compresses the rubber sealing layer in the sealed intracavity of upper bearing frame, realizes sealed, and the security is better, adopts the fixed clamp plate's of fastener mode, and the cable conductor is dragged and is dragged the in-process and can not drive the clamp plate and rotate to avoid the difficult slippage of cable conductor.
2) The sealing cavity is internally provided with a tapered hole, and the rubber sealing layer is extruded in the tapered hole in a collision manner, so that the sealing property of the sealing cavity and the rubber sealing layer is improved.
3) The clamp plate is matched with the rubber sealing layer in an L-shaped annular design, the conical sleeve of the rubber sealing layer is convenient to be matched with the clamp plate to be tightly sleeved, and the clamp plate, the rubber sealing layer and the cable are tightly sleeved, so that the sealing effect is improved, and the reliability is improved.
Drawings
Fig. 1 is a schematic structural diagram provided by the present invention.
Fig. 2 is a partially enlarged schematic view of fig. 1.
Fig. 3 is a schematic structural view of the upper bearing seat provided by the present invention.
In the figure, an upper bearing seat 1, a sealing cavity 2, a taper hole 20, a threading hole 21, a convex edge 210, a single-core oil-resistant wire 3, a cable 4, a rubber sealing layer 5, a retainer ring 50, a taper sleeve 51, a pressing plate 6, a fastener 7, a heat-shrinkable sleeve 8, soldering tin 9 and a rubber support 10.
Detailed Description
As shown in figure 1, the pressing plate type submersible electric pump cable sealing structure comprises an upper bearing seat 1, a single-core oil-resistant wire 3, a cable 4, a rubber sealing layer 5, a pressing plate 6 and a fastener 7.
With reference to fig. 1 and 3, a seal cavity 2 is arranged in the upper bearing seat 1, a single-core oil-resistant wire 3 and a cable 4 penetrate into the seal cavity 2 and are connected in the seal cavity 2, a rubber seal layer 5 is arranged outside the single-core oil-resistant wire 3 and the cable 4, a circle of check ring 50 is formed on the outer side of the rubber seal layer 5 along the circumferential direction, the rubber seal layer 5 is filled in the seal cavity 2, the check ring 50 abuts against the circumferential edge of the end face of the seal cavity 2 of the upper bearing seat 1 and is pressed tightly through a pressing plate 6, the pressing plate 6 is fixed with the upper bearing seat 1 through a fastening piece 7, the fastening piece 7 is preferably a plurality of screws, and the pressing plate 6 is fixed on the outer side. The pressing plate 6 evenly compresses the rubber sealing layer 5 in the sealing cavity 2 of the upper bearing seat 1, sealing is achieved, safety is better, and the cable 4 is not prone to slipping.
As shown in fig. 3, the seal chamber 2 has therein a tapered hole 20, and the tapered hole 20 is located closer to the connection side of the electric cable 4 than to the connection side away from the electric cable 4. The upper bearing seat 1 is provided with a threading hole 21 communicated with the tapered hole 20 of the sealing cavity 2, the single-core oil-resistant thread 3 penetrates into the threading hole 21, a convex edge 210 is formed at the position of the center of the hole periphery of the threading hole 21, and the inner end surface of the convex edge 210 is an inclined surface.
With reference to fig. 1, 2 and 3, one end of the rubber sealing layer 5 close to the single-core oil-resistant wire 3 is provided with a step shape, the small-diameter section of the step shape extends out of the threading hole 21, and the end face of the large-diameter section of the step shape and the convex edge 210 of the threading hole 21 are pressed and sealed through a gasket, so that stress is concentrated, and a better sealing effect is achieved.
As shown in fig. 2, the single-core oil-resistant wire 3 is in butt joint with the wire core of the cable 4 through the soldering tin 9, the heat-shrinkable tube 8 is sleeved at the joint of each single-core oil-resistant wire 3 and the cable 4, the rubber support 10 is arranged outside each heat-shrinkable tube 8, and the rubber sealing layer 5 is wrapped outside the rubber support 10. The heat-shrinkable sleeve 8 is located on the inner side of the plane of the inner end face of the retainer ring 50, namely, the connecting end of the single-core oil-resistant wire 3 and the cable 4 is located in the retainer ring 50, so that the movement influence of the cable 4 on the connecting end is small, and disconnection is avoided.
As shown in fig. 2, the outer side surface of the retainer ring 50 of the rubber sealing layer 5 is extended with an arc surface to form a tapered sleeve 51, the tapered sleeve 51 is sleeved on the outer skin of the cable 4, and the outer diameter of the tapered sleeve 51 is gradually reduced from the side close to the sealing cavity 2 to the outside. The pressing plate 6 is an annular structure with an L-shaped section, the inner side of the pressing plate 6 is matched and tightly sleeved with the outer side surface of the conical sleeve 51 of the rubber sealing layer 5, and the L-shaped folding angle position of the pressing plate 6 is an arc shape which is attached to the arc-shaped surface of the rubber sealing layer 5.
The utility model discloses an installation method does:
as shown in fig. 1 and 2, a plurality of single-core oil-resistant wires 3 are butted with wire cores of a cable 4 through soldering tin 9, heat-shrinkable sleeves 8 are sleeved at the positions of the soldering tin 9, and a rubber support 10 is arranged outside each heat-shrinkable sleeve 8, so that short circuit caused by contact between the wire cores is avoided, connecting parts are wrapped by rubber sealing layers 5 and filled into a sealing cavity 2, the single-core oil-resistant wires 3 penetrate out of a threading hole 21, a rubber sealing layer 5 is pressed on a gasket, a pressing plate 6 is sleeved outside a conical sleeve 51, the outer side of a check ring 50 is tightly sleeved with the conical sleeve 51 and fixed in a mounting hole of an upper bearing seat 1 through screws, and the rubber sealing layer 5 is pressed and fixed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of upper bearing block 1, seal cavity 2, taper hole 20, threading hole 21, single core oil-resistant wire 3, cable 4, rubber seal layer 5, retainer ring 50, taper sleeve 51, press plate 6, fastener 7, heat-shrinkable sleeve 8, solder 9, rubber mount 10, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. The utility model provides a clamp plate formula submerged motor pump cable seal structure, includes bolster bearing housing (1), be equipped with a sealed chamber (2) in bolster bearing housing (1), single core oil-fast line (3) and cable conductor (4) penetrate this sealed chamber (2) in and at sealed chamber (2) internal connection, its characterized in that: the outside of single core resistant oil line (3) and cable conductor (4) is equipped with rubber sealing layer (5), and rubber sealing layer (5) outside forms round retaining ring (50) along circumference, rubber sealing layer (5) fill in seal chamber (2), just retaining ring (50) support and compress tightly along and through clamp plate (6) in seal chamber (2) terminal surface week of last bearing frame (1), this clamp plate (6) with it is fixed through fastener (7) to go up bearing frame (1).
2. The platen-type submersible electric pump cable seal structure according to claim 1, characterized in that: the inner side of the sealing cavity (2) is provided with a conical hole (20), and the diameter of the conical hole (20) close to the connecting side of the cable (4) is larger than the diameter of the conical hole (20) away from the connecting side of the cable (4).
3. The platen-type submersible electric pump cable seal structure according to claim 1, characterized in that: the upper bearing seat (1) is further provided with a threading hole (21) communicated with the sealing cavity (2), and the single-core oil-resistant thread (3) penetrates into the threading hole (21).
4. The platen-type submersible electric pump cable seal structure according to claim 3, characterized in that: the rubber sealing layer (5) and the inner end face of the threading hole (21) are compressed and sealed through a gasket.
5. The platen-type submersible electric pump cable seal structure according to claim 4, characterized in that: the inner end face of the threading hole (21) is an inclined plane.
6. The platen-type submersible electric pump cable seal structure according to claim 1, characterized in that: single core oil-resistant line (3) and the sinle silk of cable conductor (4) pass through soldering tin (9) and dock, and the junction cover of every single core oil-resistant line (3) and cable conductor (4) is equipped with heat shrinkage bush (8) to every heat shrinkage bush (8) outside is equipped with rubber support (10), rubber sealing layer (5) wrap up in rubber support (10) are outside.
7. The platen-type submersible electric pump cable seal structure according to claim 6, characterized in that: the heat-shrinkable sleeve (8) is positioned on the inner side of the plane of the inner end face of the retainer ring (50).
8. The platen-type submersible electric pump cable seal structure according to claim 1, characterized in that: the outer side surface of the retainer ring (50) of the rubber sealing layer (5) excessively extends to form a conical sleeve (51) through an arc-shaped surface, the conical sleeve (51) is sleeved on the outer skin of the cable (4), and the outer diameter of the conical sleeve (51) is outwards reduced from one side close to the sealing cavity (2).
9. The platen-type submersible electric pump cable seal structure according to claim 8, characterized in that: the pressing plate (6) is of an annular structure with an L-shaped cross section, the pressing plate (6) is attached to the outer end face of the retainer ring (50), the pressing plate (6) is matched and tightly sleeved with the outer side face of the conical sleeve (51) of the rubber sealing layer (5), and the L-shaped folding angle position of the pressing plate (6) is an arc shape attached to the arc-shaped face of the rubber sealing layer (5).
10. The platen-type submersible electric pump cable seal structure according to claim 1, characterized in that: the fastener (7) is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082104.2U CN211296157U (en) | 2019-11-27 | 2019-11-27 | Pressing plate type cable sealing structure of submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082104.2U CN211296157U (en) | 2019-11-27 | 2019-11-27 | Pressing plate type cable sealing structure of submersible electric pump |
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| Publication Number | Publication Date |
|---|---|
| CN211296157U true CN211296157U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922082104.2U Active CN211296157U (en) | 2019-11-27 | 2019-11-27 | Pressing plate type cable sealing structure of submersible electric pump |
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| CN (1) | CN211296157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117542583A (en) * | 2023-12-14 | 2024-02-09 | 无锡宝威焊割设备有限公司 | Automatic threading machine for cables |
-
2019
- 2019-11-27 CN CN201922082104.2U patent/CN211296157U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117542583A (en) * | 2023-12-14 | 2024-02-09 | 无锡宝威焊割设备有限公司 | Automatic threading machine for cables |
| CN117542583B (en) * | 2023-12-14 | 2024-06-07 | 无锡宝威焊割设备有限公司 | Automatic threading machine for cables |
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