CN210418987U - Well logging crown block - Google Patents
Well logging crown block Download PDFInfo
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- CN210418987U CN210418987U CN201921061200.2U CN201921061200U CN210418987U CN 210418987 U CN210418987 U CN 210418987U CN 201921061200 U CN201921061200 U CN 201921061200U CN 210418987 U CN210418987 U CN 210418987U
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- pulley
- hanger
- protective cover
- logging
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Abstract
The utility model relates to a logging sky pulley, which comprises a hanger component, a pulley, a support mandrel and a protective cover; the lifting arm device also comprises 2 lifting arm connecting rods and articulated shafts; the bottom of the hanger assembly is provided with an inverted U-shaped lifting lug, two ends of the inverted U-shaped lifting lug are respectively hinged with the upper end of the corresponding side hanger arm connecting rod through hinged shafts, 2 hinged shafts are arranged in parallel, and the shaft ends of the hinged shafts are locked and fixed through locking pins; the protective cover is sleeved on the outer side of the pulley and integrally encloses the pulley; the supporting mandrel sequentially penetrates through the protective cover side plate on one side, the suspension arm connecting rod on one side, the pulley center hole, the suspension arm connecting rod on the other side and the protective cover side plate on the other side, two ends of the supporting mandrel are locked and fixed through locking nuts, and a bearing is arranged between the supporting mandrel and the pulley center hole. The utility model has the advantages of simple structure and reasonable design, safe and reliable, it is convenient to maintain.
Description
Technical Field
The utility model relates to an oil logging technical field especially relates to a well logging sky pulley.
Background
In the petroleum logging, perforation, well wall coring and other operations using logging cables, double pulleys are required, and each double pulley consists of a crown pulley and a ground pulley which are used in a matching way. The top pulley that uses commonly at present adopts the structure of whole metal construction or adoption metal casing, nylon pulley body more, and structural design is not very reasonable moreover, leads to equipment dead weight great, the fault rate is high to the work efficiency of influence logging has increased the maintenance cost of equipment.
Disclosure of Invention
The utility model provides a well logging sky pulley, its simple structure, reasonable in design, safe and reliable, maintenance convenience.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a logging sky pulley comprises a hanger assembly, a pulley, a support mandrel and a protective cover; the lifting arm device also comprises 2 lifting arm connecting rods and articulated shafts; the bottom of the hanger assembly is provided with an inverted U-shaped lifting lug, two ends of the inverted U-shaped lifting lug are respectively hinged with the upper end of the corresponding side hanger arm connecting rod through hinged shafts, 2 hinged shafts are arranged in parallel, and the shaft ends of the hinged shafts are locked and fixed through locking pins; the protective cover is sleeved on the outer side of the pulley and integrally encloses the pulley; the supporting mandrel sequentially penetrates through the protective cover side plate on one side, the suspension arm connecting rod on one side, the pulley center hole, the suspension arm connecting rod on the other side and the protective cover side plate on the other side, two ends of the supporting mandrel are locked and fixed through locking nuts, and a bearing is arranged between the supporting mandrel and the pulley center hole.
The hanger assembly comprises a hanger, a pin shaft, a vertical shaft and a rotary bearing, the hanger is of a U-shaped structure, the upper end of the hanger is provided with the pin shaft for connecting and fixing when the logging crown block is installed, and the end part of the pin shaft is locked and fixed by a locking ring; the bottom of the hanger is connected with the inverted U-shaped lifting lug through a vertical shaft, the upper end of the vertical shaft is connected with the hanger through threads, and the connection part is locked and fixed through a transverse vertical shaft fastening pin; wear-resistant sleeves are arranged between the bottom of the hanging bracket and the vertical shaft as well as the inverted U-shaped lifting lugs, and a slewing bearing and a wear-resistant pad are arranged between the vertical shaft and the inverted U-shaped lifting lugs.
The protective cover is fixedly connected with the suspension arm connecting rod through a plurality of bolts.
The pulley is integrally formed by nylon in a die-casting mode.
The protective cover is integrally cast and molded by polyethylene.
The top of the protective cover is provided with a V-shaped notch, and the lower part of the protective cover is provided with a reinforcing rib.
Compared with the prior art, the beneficial effects of the utility model are that:
1) 2 suspension arm connecting rods and inverted U-shaped lifting lugs are matched to realize the connection and fixation of the pulley body and the suspension bracket assembly, and the pulley body can rotate around a vertical shaft and can swing around 2 articulated shafts in a small amplitude, so that the pulley body can better adapt to the stress in the cable pumping process, not only is the rigid impact prevented, but also the cable wire jumping phenomenon caused by too large swing amplitude or too large deflection can be avoided;
2) the pulley is integrally formed by nylon through die-casting, so that the weight is light, the wear resistance is high, and the service life of the cable is prolonged;
3) the protective cover is integrally cast and molded by polyethylene, has strong corrosion resistance, and can better protect the pulley by adopting an integrally closed structure; the V-shaped notch at the top can effectively prevent the steel wire rope from being separated, thereby ensuring the safety and reliability of the logging operation.
Drawings
Fig. 1 is a schematic structural view of the logging sky pulley of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is a schematic structural diagram of the pulley of the present invention.
Fig. 5 is a front view of the protective cover of the present invention.
Fig. 6 is a view B-B in fig. 5.
In the figure: 1. hanger component 2, inverted U-shaped lifting lug 3, hinge shaft 4, hanger arm connecting rod 5, protective cover 6, pulley 7, bearing 8, support mandrel 9, locking nut 10, locking pin 11, hanger 12, pin shaft 13, locking ring 14, vertical shaft fastening pin 15, vertical shaft 16, rotary bearing 17, wear-resistant sleeve 18, wear-resistant pad 19, reinforcing rib 20, V-shaped notch
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 and 2, the logging sky pulley of the present invention includes a hanger assembly 1, a pulley 6, a support mandrel 8 and a protective cover 5; the lifting arm device also comprises 2 lifting arm connecting rods 4 and a hinged shaft 3; the bottom of the hanger component 1 is provided with an inverted U-shaped lifting lug 2, two ends of the inverted U-shaped lifting lug 2 are respectively hinged with the upper end of a corresponding side hanger arm connecting rod 4 through hinged shafts 3, the 2 hinged shafts 3 are arranged in parallel, and the shaft ends of the hinged shafts 3 are locked and fixed through locking pins 10; the protective cover 5 is sleeved on the outer side of the pulley 6 and integrally encloses the pulley 6; the supporting mandrel 8 sequentially penetrates through the protective cover side plate on one side, the suspension arm connecting rod 4 on one side, the central hole of the pulley 6, the suspension arm connecting rod 4 on the other side and the protective cover side plate on the other side, two ends of the supporting mandrel 8 are locked and fixed through locking nuts 9, and a bearing 7 is arranged between the supporting mandrel 8 and the central hole of the pulley 6.
As shown in fig. 3, the hanger assembly 1 is composed of a hanger 11, a pin 12, a vertical shaft 15 and a rotary bearing 16, the hanger 11 is of a U-shaped structure, the upper end of the hanger is provided with the pin 12 for connecting and fixing when the logging sky pulley is installed, and the end part of the pin 12 is locked and fixed by a locking ring 13; the bottom of the hanger 11 is connected with the inverted U-shaped lifting lug 2 through a vertical shaft 15, the upper end of the vertical shaft 15 is connected with the hanger 11 through threads, and the connection part is locked and fixed through a transverse vertical shaft fastening pin 14; a wear-resistant sleeve 17 is arranged between the bottom of the hanger 11 and the vertical shaft 15 and the inverted U-shaped lifting lug 2, and a slewing bearing 16 and a wear-resistant pad 18 are arranged between the vertical shaft 15 and the inverted U-shaped lifting lug 2.
The protective cover 5 is fixedly connected with the suspension arm connecting rod 4 through a plurality of bolts.
As shown in fig. 4, the pulley 6 is integrally die-cast from nylon.
As shown in fig. 5 and 6, the protective cover 5 is integrally cast from polyethylene.
As shown in fig. 6, the top of the protection cover 5 is provided with a V-shaped notch 20, and the lower part is provided with a reinforcing rib 19.
In a well logging sky pulley, gallows subassembly 1 is connected with davit connecting rod 4 through two hinge structure, and davit connecting rod 4 extends to 5 insides of protection casing and is fixed with protection casing 5 through the bolt, and lower extreme, pulley 6 and the protection casing 5 of davit connecting rod 4 are connected fixedly through supporting core axle 8. The protective cover 5 adopts a fully-closed structure and plays a role in protecting the outside of the pulley 6.
A well logging day pulley only needs to lift supporting core axle 8 off when maintaining, just can separate gallows subassembly 1 and davit connecting rod 4's connection structure and pulley 6, and it is very convenient to maintain and change the pulley. The pulley 6 is formed by nylon through die casting, the protective cover 5 is formed by polyethylene through casting, the whole equipment is light in weight and good in wear resistance, the efficiency of logging operation is improved, and the service life of a cable is prolonged; the protective cover 5 is of an integrally closed structure, and the V-shaped notch 20 is formed in the top of the protective cover, so that the anti-falling effect of a steel wire rope can be effectively achieved, and the logging operation is safer and more reliable.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (6)
1. A logging sky pulley comprises a hanger assembly, a pulley, a support mandrel and a protective cover; it is characterized by also comprising 2 suspension arm connecting rods and articulated shafts; the bottom of the hanger assembly is provided with an inverted U-shaped lifting lug, two ends of the inverted U-shaped lifting lug are respectively hinged with the upper end of the corresponding side hanger arm connecting rod through hinged shafts, 2 hinged shafts are arranged in parallel, and the shaft ends of the hinged shafts are locked and fixed through locking pins; the protective cover is sleeved on the outer side of the pulley and integrally encloses the pulley; the supporting mandrel sequentially penetrates through the protective cover side plate on one side, the suspension arm connecting rod on one side, the pulley center hole, the suspension arm connecting rod on the other side and the protective cover side plate on the other side, two ends of the supporting mandrel are locked and fixed through locking nuts, and a bearing is arranged between the supporting mandrel and the pulley center hole.
2. The logging sky pulley of claim 1, wherein the hanger assembly comprises a hanger, a pin, a vertical shaft and a slewing bearing, the hanger is of a U-shaped structure, the upper end of the hanger is provided with the pin for connecting and fixing the logging sky pulley during installation, and the end part of the pin is locked and fixed by a locking ring; the bottom of the hanger is connected with the inverted U-shaped lifting lug through a vertical shaft, the upper end of the vertical shaft is connected with the hanger through threads, and the connection part is locked and fixed through a transverse vertical shaft fastening pin; wear-resistant sleeves are arranged between the bottom of the hanging bracket and the vertical shaft as well as the inverted U-shaped lifting lugs, and a slewing bearing and a wear-resistant pad are arranged between the vertical shaft and the inverted U-shaped lifting lugs.
3. The logging head sheave of claim 1, wherein the shield is fixedly connected to the boom linkage by a plurality of bolts.
4. The logging sky pulley of claim 1, wherein the pulley is integrally die cast from nylon.
5. The logging head sheave of claim 1, wherein the protective cover is integrally cast from polyethylene.
6. A logging sky pulley according to claim 1 or 5, wherein the top of the shield has a V-shaped notch and the lower part has a reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061200.2U CN210418987U (en) | 2019-07-09 | 2019-07-09 | Well logging crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921061200.2U CN210418987U (en) | 2019-07-09 | 2019-07-09 | Well logging crown block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210418987U true CN210418987U (en) | 2020-04-28 |
Family
ID=70379569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921061200.2U Active CN210418987U (en) | 2019-07-09 | 2019-07-09 | Well logging crown block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210418987U (en) |
-
2019
- 2019-07-09 CN CN201921061200.2U patent/CN210418987U/en active Active
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