CN216422427U

CN216422427U - Sliding bearing dismounting tool

Info

Publication number: CN216422427U
Application number: CN202122239672.6U
Authority: CN
Inventors: 张胜国; 吴金亮; 韩君炎; 朱秀庆; 钟伟强; 沈军; 张柏荣; 傅立峰
Original assignee: RONGSHENG PETROCHEMICAL CO Ltd
Current assignee: RONGSHENG PETROCHEMICAL CO Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-05-03
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a frock is dismantled to slide bearing aims at solving slide bearing's on the fuse-element gear pump dismantlement inconvenient, dismantles the in-process and causes the not enough of damage to slide bearing easily. The utility model discloses an including drawing the seat, installing a plurality of screw rods on drawing the seat, drawing on the seat and the screw rod correspondence is equipped with a plurality of jacks, screw rod and jack cartridge make between screw rod and the jack axial displacement and circumference locking, screw rod one end is equipped with the screw thread post that is used for being connected with the screw of slide bearing tip, screw rod other end threaded connection draws the nut, draws the nut and rotates and drive screw rod axial displacement. The sliding bearing dismounting tool facilitates dismounting of the sliding bearing on the melt gear pump, and damage to the sliding bearing can not be caused in the dismounting process.

Description

Sliding bearing dismounting tool

Technical Field

The utility model relates to a slide bearing dismantles technique, and more specifically says, it relates to a slide bearing dismantles frock.

Background

The melt gear pump is the core equipment of the polyester and vermicelli device, and once the machine is stopped, the whole production line is stopped.

During the fault maintenance of the melt gear pump, the melt accumulated on the surface of the outer ring of the sliding bearing is carbonized to generate carbide due to the long-term operation of the sliding bearing. The generation of carbide can increase the friction coefficient between the sliding bearing and the bearing seat hole; meanwhile, the interference magnitude between the outer ring of the sliding bearing and the bearing seat hole can be increased by the carbide, and the holding force is increased; the friction force between the sliding bearing and the bearing seat hole is increased, and the maintenance of the melt gear pump is difficult. The slide bearing is usually removed by 2 methods: 1. and increasing the tension, and ejecting the sliding bearing from the bearing seat hole by adopting a large-tension jack. The consequence is a scuffing of the bearing housing bore, which requires a grinding of the surface of the bore during assembly. 2. And heating the bearing seat hole by adopting flame or resistance wire, reducing the interference magnitude between the sliding bearing and the bearing seat hole, and pulling the sliding bearing out of the bearing seat hole. The consequence is that the bearing seat hole is deformed unevenly due to rapid temperature rise of the bearing seat hole, which brings difficulty to the re-assembly and disassembly of the sliding bearing. Because of the high surface finish precision of the inner and outer rings of the sliding bearing, the assembly requirement is strict, and the stable operation is influenced once the sliding bearing is damaged. The 2 methods can damage the unit and the sliding bearing, so that the maintenance time is prolonged, the production line downtime is prolonged, and certain economic loss is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a slide bearing dismantles frock, it has made things convenient for slide bearing's dismantlement on the fuse-element gear pump, dismantles the in-process and can not cause the damage to slide bearing.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a frock is dismantled to slide bearing, includes to draw the seat, installs a plurality of screw rods on drawing the seat, draws on the seat and corresponds with the screw rod and be equipped with a plurality of jacks, screw rod and jack cartridge make between screw rod and the jack ability axial displacement and circumference locking, screw rod one end is equipped with the screw thread post that is used for being connected with the screw of slide bearing tip, and screw rod other end threaded connection draws the nut, draws the nut and rotates and drive screw rod axial displacement.

When using the work of this patent to slide bearing on the fuse-element gear pump to dismantle, in the screw hole on the screw thread post fastening connection to slide bearing terminal surface of screw rod one end earlier, the screw hole on the slide bearing terminal surface is equipped with a plurality of along slide bearing circumference interval. And each threaded hole on the sliding bearing is fixedly connected with a screw. Then the jack on the drawing seat is inserted into the screw, the end part of the drawing seat is supported on the melt gear pump shell, and the end part of the screw extends out of the jack. The draw nut is then attached to the screw. During the process of tightening the drawn nut, the following two methods can be adopted: firstly, the drawing nuts are uniformly screwed in sequence according to the rotation of 15 degrees of each drawing nut. And secondly, the torque wrench is used for uniformly screwing the drawing nut according to the maximum allowable torque of the threads and the screws, so that the stress of each screw is not more than the allowable value. Drawing the nut butt and drawing the screw on the seat to drawing the operation to outwards draw the slide bearing, along with drawing the constantly rotatory of nut, pull out the slide bearing, accomplish the dismantlement. The two methods avoid the phenomenon of fracture caused by overlarge stress of a single screw, ensure the uniform movement of the outer ring of the sliding bearing, avoid the damage to the sliding bearing and facilitate the disassembly of the sliding bearing. The sliding bearing dismounting tool facilitates dismounting of the sliding bearing on the melt gear pump, and damage to the sliding bearing can not be caused in the dismounting process.

Preferably, the screw is sleeved with a thrust bearing, and the thrust bearing is arranged between the drawing nut and the drawing seat.

The thrust bearing is favorable for reducing the resistance effect on the drawing nut in the rotating process, so that the screwing process of the drawing nut is easier.

Preferably, the cross section of the screw rod and the insertion hole are in a kidney-shaped circle, and the screw rod and the insertion hole can be axially movably inserted together. The waist-shaped structure prevents mutual rotation between the screw rod and the jack, and ensures reliable drawing of the sliding bearing by the screw rod.

Preferably, the threaded post is thinner than the threaded rod, and an obliquely arranged transition surface is arranged between the threaded post and the threaded rod.

Preferably, the transition surface is at an angle of 30 degrees to the axis of the screw.

Preferably, the drawing seat comprises a top plate and a side plate, the top plate is connected to the end of the side plate, and the insertion hole is formed in the top plate. This structural arrangement provides space for the extraction of the slide bearing.

Preferably, the top plate is provided with a peephole. The peephole is arranged to facilitate observation of the disassembly condition of the sliding bearing.

As preferred, the roof edge includes circular arc section and straightway, and the both ends of circular arc section are connected with the both ends of straightway respectively, and the curb plate is convex structure, and curb plate one end is connected with the circular arc section edge of roof, and the breach between the curb plate both ends corresponds the setting with the straightway of roof.

The position of the slide bearing arranged on the melt gear pump is in an 8-shaped structure, and two slide bearings are adjacently arranged. The curb plate is the corresponding setting of the straightway of breach and roof between arc structure and the curb plate both ends, when dismantling a slide bearing, the curb plate tip can not push up on another slide bearing and cause the damage to this slide bearing. In addition, can set up two frocks and dismantle two slide bearings simultaneously, the straightway of two roofs draws close and can not cause the interference.

Compared with the prior art, the beneficial effects of the utility model are that: the sliding bearing dismounting tool facilitates dismounting of the sliding bearing on the melt gear pump, and damage to the sliding bearing can not be caused in the dismounting process.

Drawings

Fig. 1 is a plan view of a use state of the present invention;

fig. 2 is a sectional view showing a use state of the present invention;

fig. 3 is a top view of the drawing base of the present invention;

in the figure: 1. drawing seat, 2, screw rod, 3, jack, 4, screw post, 5, drawing nut, 6, thrust bearing, 7, transition face, 8, roof, 9, curb plate, 10, peephole, 11, circular arc section, 12, straightway, 13, breach, 14, fuse-element gear pump, 15, torque wrench, 16, slide bearing.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example (b): the utility model provides a slide bearing dismantles frock (see attached 1 to attached 3), includes and draws seat 1, installs a plurality of screw rods 2 on drawing the seat, draws on the seat and corresponds with the screw rod and is equipped with a plurality of jacks 3, and screw rod and jack cartridge make between screw rod and the jack axial displacement and circumference locking, and screw rod one end is equipped with the screw thread post 4 that is used for being connected with the screw of slide bearing 16 tip, and screw rod other end threaded connection draws nut 5, draws the nut and rotates and drive screw rod axial displacement.

The screw rod is sleeved with a thrust bearing 6, and the thrust bearing is arranged between the drawing nut and the drawing seat. The cross section of the screw rod and the jack are in a kidney-shaped shape, the screw rod and the jack can be axially moved and inserted together, circumferential locking is achieved through a kidney-shaped structure, and the screw rod and the jack cannot rotate mutually. The threaded column is thinner than the screw rod, and a transition surface 7 which is obliquely arranged is arranged between the threaded column and the screw rod. The included angle between the transition surface and the axis of the screw is 30 degrees. The drawing seat comprises a top plate 8 and a side plate 9, the top plate is connected to the end of the side plate, and the insertion holes are formed in the top plate. The top plate and the side plate are connected in a welding mode. The top plate is provided with a peephole 10. The roof edge includes circular arc section 11 and straightway 12, and the both ends of circular arc section are connected with the both ends of straightway respectively, and the curb plate is convex structure, and the circular arc section edge connection of curb plate one end and roof, breach 13 between the curb plate both ends correspond the setting with the straightway of roof. The range enclosed by the side plates is larger than the outer diameter of the sliding bearing.

When the work of using this patent is dismantled slide bearing on the fuse-element gear pump 14, in the screw hole on the screw rod one end screw rod fastening connection to slide bearing terminal surface earlier, the screw hole on the slide bearing terminal surface is equipped with a plurality of along slide bearing circumference interval. And each threaded hole on the sliding bearing is fixedly connected with a screw. Then the jack on the drawing seat is inserted into the screw, the end part of the drawing seat is supported on the melt gear pump shell, and the end part of the screw extends out of the jack. The draw nut is then attached to the screw. During the process of tightening the drawn nut, the following two methods can be adopted: firstly, the drawing nuts are uniformly screwed in sequence according to the rotation of 15 degrees of each drawing nut. And secondly, the torque wrench 15 is used for uniformly screwing the drawing nut according to the maximum allowable torque of the threads and the screw rods, so that the stress of each screw rod is not more than the allowable value. Drawing the nut butt and drawing the screw on the seat to drawing the operation to outwards draw the slide bearing, along with drawing the constantly rotatory of nut, pull out the slide bearing, accomplish the dismantlement. The two methods avoid the phenomenon of fracture caused by overlarge stress of a single screw, ensure the uniform movement of the outer ring of the sliding bearing, avoid the damage to the sliding bearing and facilitate the disassembly of the sliding bearing. The sliding bearing dismounting tool facilitates dismounting of the sliding bearing on the melt gear pump, and damage to the sliding bearing cannot be caused in the dismounting process.

The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a frock is dismantled to slide bearing, characterized by, including drawing the seat, installing a plurality of screw rods on drawing the seat, draw on the seat and correspond with the screw rod and be equipped with a plurality of jacks, screw rod and jack cartridge make between screw rod and the jack ability axial displacement and circumference locking, screw rod one end is equipped with the screw thread post that is used for being connected with the screw of slide bearing tip, screw rod other end threaded connection draws the nut, draws the nut and rotates and drive screw rod axial displacement.

2. The slide bearing dismounting tool according to claim 1, wherein the screw is sleeved with a thrust bearing, and the thrust bearing is arranged between the drawing nut and the drawing seat.

3. A slide bearing dismounting tool according to claim 1, characterized in that the screw and the insertion hole are kidney-shaped in cross section, and the screw and the insertion hole are axially movably inserted together.

4. A slide bearing dismounting tool according to claim 1, wherein the threaded post is thinner than the threaded rod, and an obliquely arranged transition surface is provided between the threaded post and the threaded rod.

5. A slide bearing dismounting tool according to claim 4, wherein the transition surface is at an angle of 30 ° to the screw axis.

6. A sliding bearing dismounting tool according to any one of claims 1 to 5, characterized in that the drawing seat comprises a top plate and a side plate, the top plate is connected with the end part of the side plate, and the insertion hole is formed in the top plate.

7. The tool for disassembling a sliding bearing according to claim 6, wherein the top plate is provided with a peephole.

8. The tool for disassembling the sliding bearing according to claim 6, wherein the edge of the top plate comprises a circular arc section and a straight line section, two ends of the circular arc section are respectively connected with two ends of the straight line section, the side plate is in a circular arc structure, one end of the side plate is connected with the edge of the circular arc section of the top plate, and a gap between two ends of the side plate is arranged corresponding to the straight line section of the top plate.