CN217317852U

CN217317852U - Dismounting device for U-shaped pin

Info

Publication number: CN217317852U
Application number: CN202220740629.XU
Authority: CN
Inventors: 魏孝华; 蔡海江; 赵宏斌; 李海飞
Original assignee: CHN Energy Wuhai Energy Co Ltd
Current assignee: CHN Energy Wuhai Energy Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-30
Anticipated expiration: 2032-03-31

Abstract

The application provides a dismounting device for a U-shaped pin, which comprises a supporting frame; the lower end of the screw rod penetrates through the supporting frame and extends downwards; the nut is arranged at the upper end of the screw in a threaded connection mode and is positioned at the upper end of the support frame; the fixed shackle subassembly that sets up the lower extreme of screw rod, this a dismounting device for U type round pin adopt screw thread transmission mode to drive the screw rod and shift up at dismantlement U type round pin in-process, and then draw the U type round pin, and twist the nut operation in-process soon, except that manual operation is more simple and convenient can also improve the dismantlement efficiency of U type round pin with the help of instruments such as spanner and sleeve.

Description

Dismounting device for U-shaped pin

Technical Field

The utility model belongs to the technical field of the maintenance extracting tool, concretely relates to a dismounting device for U type round pin.

Background

U-shaped pins are often applied to various types of liquid tubes that are hydraulically set, which are themselves U-shaped. During use, the U-shaped pin is inserted into the pin hole.

Due to the influence of the working environment (such as coal mines), the U-shaped pin is easy to rust and corrode. When changing liquid pipe sealing washer or liquid pipe each time, need demolish the U type round pin. For the liquid pipe U-shaped pin which is seriously corroded, the liquid pipe U-shaped pin is difficult to pick by using a hammer and a chisel, sometimes, the space is limited, long picking time is needed, time and labor are wasted, and the liquid pipe U-shaped pin is not suitable for working condition requirements.

SUMMERY OF THE UTILITY MODEL

To the part or whole of the above-mentioned technical problem that exists among the prior art, the utility model provides a dismounting device for U type round pin. This a dismounting device for U type round pin is dismantling U type round pin in-process, adopts screw thread transmission mode to drive the screw rod and shifts up, and then draws U type round pin, and revolves to twist among the nut operation process, except that manual operation is more simple and convenient can also improve the dismantlement efficiency of U type round pin with the help of instruments such as spanner and sleeve.

According to the utility model discloses, a dismounting device for U type round pin is provided, include:

a supporting frame is arranged on the base plate,

a vertically extending screw, the lower end of the screw extending downward through the support frame,

a nut which is arranged at the upper end of the screw in a threaded connection manner and is positioned at the upper end of the supporting frame,

and the shackle component is fixedly arranged at the lower end of the screw rod.

In one embodiment, a pressure bearing is provided between the lower surface of the nut and the upper surface of the support bracket, wherein the screw rod passes through the pressure bearing with clearance.

In one embodiment, a first spacer is disposed between a lower surface of the nut and the pressure bearing.

In one embodiment, a second gasket is disposed between the pressure bearing and the upper surface of the support bracket.

In one embodiment, the lower surface of the nut is fixedly connected with the upper ring of the pressure bearing, and the lower ring of the pressure bearing is fixedly connected with the upper surface of the support frame.

In one embodiment, the support frame is configured in a door-shaped frame shape, and has:

a transverse plate is arranged on the upper surface of the base,

a supporting piece arranged on the lower end surface of the transverse plate,

wherein the pressure bearing is placed on the cross plate, and the screw rod passes through the cross plate in a clearance type.

In one embodiment, the support element is configured as two oppositely arranged support plates, or the support element is configured as support legs distributed in a rectangular shape.

In one embodiment, the shackle component comprises:

a fixed ring fixedly connected with the screw rod,

a split ring for ring-type sleeving on the fixing ring,

a bolt for penetrating the ring body of the split ring to close the split ring.

In one embodiment, a groove for clamping the fixing ring is formed in the lower end face of the screw rod, and the fixing ring is welded with the screw rod.

In one embodiment, a plurality of split rings are provided on the retainer ring.

Compared with the prior art, the utility model has the advantages of: this a dismounting device for U type round pin is dismantling U type round pin in-process, adopts screw thread transmission mode to drive the screw rod and shifts up, and then draws U type round pin, and revolves to twist among the nut operation process, except that manual operation is more simple and convenient can also improve the dismantlement efficiency of U type round pin with the help of instruments such as spanner and sleeve.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

fig. 1 shows a dismounting device for a U-pin according to an embodiment of the invention.

The figures are not drawn to scale.

Detailed Description

In order to make the technical solutions and advantages of the present invention more clearly understood, the following description is made in further detail with reference to the accompanying drawings. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.

An embodiment of the present invention provides a dismounting device 100 for a U-shaped pin. As shown in fig. 1, the dismounting device 100 for the U-shaped pin comprises a support frame 1, a screw 2, a nut 3 and a shackle component 4. Wherein, the support frame 1 is in a door-shaped frame shape and mainly plays a role of basic support. The screw 2 extends vertically, and the lower end of the screw 2 extends downward through the support frame 1. The nut 3 is sleeved at the upper end of the screw rod 2 and is in threaded fit with the screw rod 2. Meanwhile, the nut 3 is positioned at the upper end of the support frame 1 and can rotate relative to the support frame 1 for actuating the screw rod 2 to move axially. And the shackle component 4 is fixedly arranged at the lower end of the screw rod 2 and is used for pulling the U-shaped pin to be disassembled.

In use, the support 1 is placed in position and the shackle component 4 is snap-connected to the clevis pin to be removed. The operator can then manually screw the nut 3. During the rotation of the nut 3 relative to the support 1, the screw 2 can only move axially in the up-down direction relative to the support 1, since the lower end of the screw 2 is limited by the U-shaped pin via the shackle component 4. In the process that the screw rod 2 axially ascends, the shackle component 4 is driven to move upwards, and then drawing force is generated on the U-shaped pin. According to the application, the nut 3 can be screwed to realize the disassembly of the U-shaped pin, and the driving torque is stable. Furthermore, the screwing nut 3 can be operated manually, tools such as a wrench and a sleeve can be used for operation, time and labor are saved, and the disassembly efficiency is improved. In addition, the dismounting device 100 for the U-shaped pin has the advantages of simple structure, low manufacturing cost and flexible and wide application.

In a preferred embodiment, a pressure bearing 5 is provided between the lower surface of the nut 3 and the upper surface of the support 1. Wherein the screw 2 passes through the pressure bearing 5 in a clearance manner. By providing the pressure bearing 5, the sliding friction of the rotation motion between the nut 3 and the support frame 1 can be changed into rolling friction, so that the nut 3 can be more easily rotated relative to the support frame 1, and the operation of screwing the nut 3 is more labor-saving.

A first spacer 6 is provided between the lower surface of the nut 3 and the pressure bearing 5. Further, a second gasket 7 is provided between the pressure bearing 5 and the upper surface of the support frame 1. Through distributing at pressure bearing 5 both ends and setting up first gasket 6 and second gasket 7, can increase nut 3 and pressure bearing 5 to and the area of contact of pressure bearing 5 and support frame 1 for the better transmission of power, simultaneously, first gasket 6 and second gasket 7 have still played the effect of protection pressure bearing 5.

Of course, during the screwing process of the nut 3, in order to ensure that the nut 3 rotates completely relative to the support frame 1, the lower surface of the nut 3 is fixedly connected with the upper ring of the pressure bearing 5, and the lower ring of the pressure bearing 5 is fixedly connected with the upper surface of the support frame 1. This arrangement allows to better define the pressure bearing 5, ensuring a complete relative rotation of the nut 3 with respect to the supporting frame 1.

According to the present application, the support 1 is constructed in a door-shaped frame shape. The support frame 1 has a cross plate 11 and a support member 12. The supporting member 12 is disposed on the lower end surface of the horizontal plate 11, and mainly plays a role of supporting the horizontal plate 11. After the connection, the pressure bearing 5 is placed on the cross plate 11 and the threaded rod 2 is passed through the cross plate 11 with clearance and extends to the inside of the support 12. The support frame 1 with the arrangement has a simple structure and can well play a role in supporting the screw rod 2.

In one embodiment, the support member 12 is configured as two support plates that are oppositely disposed. Of course, the present application is not limited to the above-described structure, and for example, the support member 12 is also configured in a support leg shape having a rectangular distribution. The supporting piece of the arrangement has a simple structure, and can reserve a large inner space for facilitating the extension of the screw rod 2 and hooking the U-shaped pin. For example, the supporting member 12 and the horizontal plate 11 may be welded. In the use process, the supporting piece 12 with the structure can be clamped on the liquid pipe, so that the dismounting device 100 for the U-shaped pin can be better adapted to the space and is flexible and mobile to use.

The shackle assembly 4 comprises, according to the present application, a fixed ring 41, a split ring 42, a bolt 43 and a coupling nut 44. Wherein, the fixed ring 41 is fixedly connected with the screw rod 2, which is mainly convenient for the ring to lock the split ring 42. Snap ring 42 snaps onto retaining ring 41 for hooking the clevis pin. For example, the split ring 42 is a downwardly opening U-shaped split ring. Bolts 43 are used to penetrate the ring body of split ring 42 to close split ring 42 to form a closed ring for snap-fit attachment of the clevis pin to the ring. In the use process, the bolt 43 passes through the ring body of the split ring 42 and the U-shaped pin, the bolt 43 is limited through the connecting nut 44, the bolt 43 is placed to fall off, and the clamping connection of the split ring 42 and the U-shaped pin is completed. At this time, in the process of pulling the screw rod 2, the shackle component 4 can pull the U-shaped pin and drive the U-shaped pin to perform vertical pulling movement, so that the U-shaped pin is finally pulled out from the fixed position, and the disassembling task is completed.

The lower end face of the screw rod 2 is provided with a groove 21 for clamping the fixing ring 41. For example, after the fixing ring 41 is snapped into the groove 21, the screw rod 2 and the fixing ring 41 are connected by welding. This makes it easy to attach the retaining ring 41 to the screw 2, simplifying the attachment operation. Meanwhile, the fixing ring 41 is clamped in the groove 21, so that the fixing ring 41 and the screw rod 2 can be well vertically moved together.

Of course, a plurality of split rings 42 may be provided as desired. If the split rings 42 are connected in turn, the length can be increased appropriately to adjust the distance of the screw 2 from the clevis pin to be disassembled. Or a plurality of split rings 42 are all connected to the fixed ring 41, and some split rings 42 are used as spare rings to ensure the service life of the dismounting device 100 for the U-shaped pin.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.

Claims

1. A dismounting device for a U-shaped pin, comprising:

a supporting frame is arranged on the base plate,

a vertically extending screw, the lower end of the screw passing through the support frame and extending downward,

a nut which is arranged at the upper end of the screw rod in a threaded connection manner and is positioned at the upper end of the supporting frame,

2. A dismounting device for a U-shaped pin according to claim 1, characterized in that a pressure bearing is provided between the lower surface of the nut and the upper surface of the support frame, wherein the screw rod passes through the pressure bearing with clearance.

3. A dismounting device for a U-pin according to claim 2, characterized in that a first washer is arranged between the lower surface of the nut and the pressure bearing.

4. A disconnect device for a clevis pin as defined in claim 2 in which a second spacer is provided between the pressure bearing and the upper surface of the support bracket.

5. A dismounting device for a U-shaped pin according to claim 2, characterized in that the lower surface of the nut is fixedly connected with the upper ring of the pressure bearing, and the lower ring of the pressure bearing is fixedly connected with the upper surface of the support frame.

6. A dismounting device for a U-shaped pin according to any one of claims 3 to 5, characterized in that the support frame is configured in a door-shaped frame shape, and that the support frame has:

the transverse plate is arranged on the upper surface of the frame,

a supporting piece arranged on the lower end surface of the transverse plate,

7. A dismounting device for a U-shaped pin according to claim 6, characterized in that the supporting element is constructed as two oppositely arranged supporting plates or as supporting legs in a rectangular distribution.

8. A dismounting device for a U-shaped pin according to any one of claims 1 to 5, characterized in that said shackle component comprises:

a fixed ring fixedly connected with the screw rod,

a split ring for ring-type sleeving on the fixing ring,

a bolt for penetrating the ring body of the split ring to close the split ring.

9. The dismounting device for the U-shaped pin according to claim 8, wherein a groove for clamping the fixing ring is formed in the lower end face of the screw rod, and the fixing ring is welded with the screw rod.

10. A dismounting device for a U-shaped pin according to claim 8, characterized in that a plurality of split rings are provided on the fixing ring.