CN210194333U

CN210194333U - Paper machine transfer roll hoisting device protection mechanism

Info

Publication number: CN210194333U
Application number: CN201920788391.6U
Authority: CN
Inventors: Shengji Zou; 邹盛基
Original assignee: Dongguan Jinzhou Paper Industry Co Ltd
Current assignee: Dongguan Jinzhou Paper Industry Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-03-27
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to a papermaking equipment field, concretely relates to paper machine transfer roller hoisting device protection mechanism, including establishing at the epaxial bearing gland of worm and with the steel bushing of bearing gland assembly, the other pot head of steel bushing is established on the synchronizing bar, has inlayed the nylon bush between steel bushing and the synchronizing bar, and the tip of steel bushing is equipped with the spacing bush clamp plate of one end to the nylon bush, is located to be equipped with on the steel bushing of the nylon bush other end to the spacing recess of the nylon bush other end. On the basis that the synchronous rod is connected with the worm shaft through the gear coupling, a bearing gland of the worm shaft is changed into a flange bearing gland, a steel sleeve lined with a wear-resistant oil nylon bushing is arranged between the worm shaft and the synchronous rod, and meanwhile, stainless steel bushings are embedded at two ends of the synchronous rod to form a protection mechanism to protect the synchronous rod and a shaft head of the worm shaft.

Description

Paper machine transfer roll hoisting device protection mechanism

Technical Field

The utility model relates to a papermaking equipment field especially relates to a paper machine transfer roll hoisting device protection mechanism.

Background

Most of paper making machines need to transfer paper webs or replace wools, mesh blankets and the like in the production process through a transfer roller, a breast roller and a tension roller of the paper making machine, the transfer roller, the breast roller or the tension roller are lifted and fallen by a lifting device to complete operation, a synchronizing rod of the lifting device is an important executing mechanism for connecting an operation side and a transmission side to synchronously move, and the synchronizing rod is connected with worm shafts of worm speed reducers on two sides through gear couplings.

However, in the process of ascending or descending of a suction roll, a breast roll or a tension roll of a paper machine, the synchronous rod rotates, the synchronous rod generates strong radial run-out due to factors such as meshing clearance existing in a gear coupling, the self weight of the synchronous rod, large span and the like, huge centrifugal force is added to the shaft heads of the synchronous rod and the worm shaft, equipment faults such as shaft head breakage and flat key shearing are easily caused, and the synchronous rod falls to damage valuables such as a press roll of the paper machine, a felt and the like, so that huge loss is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a paper machine transfer roller hoisting device protection machanism can solve among the prior art and cause the synchronizing bar fracture easily and then cause equipment trouble and economic loss's problem when shifting moving roll, breast roll and tensioning roller etc. in to the paper machine through hoisting device.

Based on this, the utility model provides a paper machine transfer roll hoisting device protection machanism.

The utility model provides a paper machine transfer roll hoisting device protection machanism, including establish at the epaxial bearing gland of worm and with the steel bushing of bearing gland assembly, the other pot head of steel bushing is established on the synchronizing bar, the outside of synchronizing bar be equipped with the stainless steel bush of steel bushing assembly, the steel bushing with the nylon bush has been inlayed between the stainless steel bush.

Furthermore, the bearing gland is a flange bearing gland, and two sides of the flange bearing gland are respectively fixedly connected with the speed reducer and the steel sleeve.

Furthermore, the steel bushing and a nylon bushing are embedded between the synchronizing rods, a bushing pressing plate limiting one end of the nylon bushing is arranged at the end of the steel bushing, and a groove limiting the other end of the nylon bushing is formed in the steel bushing and located at the other end of the nylon bushing.

Further, the bushing pressing plate is of an annular structure, and the bushing pressing plate is sleeved on the stainless steel bushing and fixedly connected with the end of the steel bushing.

Further, a gap of 0.5-1.0mm is formed between the stainless steel bushing and the nylon bushing.

Furthermore, the nylon bush is a wear-resistant oil nylon bush, the steel bushing and the wear-resistant oil nylon bush are provided with communicated oil holes, and the wear-resistant oil nylon bush is provided with a circumferential oil groove.

Further, an oil nozzle is arranged at the inlet end of the oil hole.

The utility model has the advantages that: on the basis that a synchronous rod of an original lifting device is connected with a worm shaft of a worm speed reducer through a gear coupling, a bearing gland of the worm shaft is changed into a flange plate bearing gland, a steel sleeve lined with a wear-resistant oil nylon bush is arranged between the worm shaft and the synchronous rod, meanwhile, stainless steel bushes are embedded at two ends of the roller surface of the synchronous rod to form a protection mechanism to protect the synchronous rod and a shaft head of the worm shaft, radial runout of the synchronous rod is effectively controlled within an allowable range, the runout of the synchronous rod is greatly reduced to generate a centrifugal force, even if irresistible factors cause the broken shaft head of the worm shaft, the synchronous rod can be supported by the flange plate bearing glands and the steel sleeve at two ends to prevent falling accidents, and in addition, the protection mechanism has a sealing and anti-corrosion effect on the two gear couplings.

Drawings

FIG. 1 is a schematic structural view of a paper machine transfer roll lifting device protection mechanism of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a partially enlarged view of B in fig. 1.

The bearing comprises a bearing gland 1, a bearing gland 11, a unthreaded hole I, a steel sleeve 2, a groove 21, a threaded hole I22, a threaded screw I23, a threaded screw II 24, a threaded screw II 25, a nylon bushing 3, a bushing pressing plate 4, a unthreaded hole II 41, a synchronizing rod 5, a stainless steel bushing 51, an oil nozzle 6, a worm reducer 7, a worm shaft 71 and a gear coupler 8.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in FIG. 1, a protection mechanism for a transfer roll lifting device of a paper machine comprises a bearing gland 1 arranged on a worm shaft 71 of a worm reducer 7, the bearing gland 1 is a flange bearing gland, the bearing gland 1 is sleeved on the worm shaft 71, one side of the bearing gland 1 is fixedly connected with the worm reducer 7 through screws, the other side of the bearing gland 1 is provided with a steel sleeve 2, the outer ring of the bearing gland 1 on the side is provided with a uniform unthreaded hole I11, the end part of the steel sleeve 2 is correspondingly provided with a uniform threaded hole I22, the bearing gland 1 is fixedly connected with one end of the steel sleeve 2 through a screw I23 penetrating through the unthreaded hole I11 and being in threaded connection with the threaded hole I22, the other end of the steel sleeve 2 is sleeved on a synchronizing rod 5, the end part of the synchronizing rod 5 is connected with the worm shaft 71 of the worm reducer 7 through a gear coupling 8, a stainless steel bush 51 is arranged at the position where the outer side of the synchronizing rod 5 is assembled with the, the nylon bush 3 is embedded between the stainless steel bush 51 and the steel jacket 2, and in the embodiment, a gap of 0.5-1.0mm is formed between the stainless steel bush 51 and the nylon bush 3. The protection mechanism limits the radial runout of the synchronous rod during rotation, effectively controls the radial runout of the synchronous rod within an allowable range, greatly reduces the runout of the synchronous rod to generate centrifugal force, and can avoid serious economic loss due to the fact that the synchronous rod 5 is supported by flange steel sleeves at two ends even if a nonresistible factor causes the shaft head of the worm shaft 71 to be broken. In addition, the protection mechanism has a sealing and corrosion-proof effect on the two gear couplings 8.

As shown in fig. 1, a bushing pressing plate 4 is arranged at the end of the steel bushing 2, the bushing pressing plate 4 is sleeved outside the stainless steel bushing 51 in an annular structure, the bushing pressing plate 4 is fixedly connected with the end of the steel bushing 2, a second uniform unthreaded hole 41 is formed in the bushing pressing plate 4, a second uniform threaded hole 24 is correspondingly formed in the end of the steel bushing 2, a second screw 25 penetrates through the second smooth hole 41 and is in threaded connection with the second threaded hole 24, so that the bushing pressing plate 4 is fixedly connected with the end of the steel bushing 2, the effect of limiting one end of the nylon bushing 3 is achieved, a groove 21 which is matched with the end of the nylon bushing 3 is formed in the position, located at the other end of the nylon bushing 3, of the steel bushing 2 to limit the other end of the nylon bushing, and the nylon bushing 3 is prevented. The nylon bush 3 is a wear-resistant oil nylon bush, a circumferential oil groove is formed in the wear-resistant oil nylon bush, communicated oil holes are formed in the steel sleeve 2 and the wear-resistant oil nylon bush, the inlet end of each oil hole is located on the steel sleeve 2, and an oil nozzle is arranged at the inlet end. Lubricating oil is injected into the wear-resistant oil nylon bush through the oil hole, and the effect of a gap between the lubricating oil and the synchronizing rod is achieved.

On the basis that a synchronous rod 5 of an original lifting device is connected with a worm shaft 71 of a worm speed reducer 7 through a gear coupling 8, a bearing gland of the worm shaft 71 is changed into a bearing gland 1 of a flange plate structure, a steel sleeve 2 lined with a wear-resistant oil nylon bush is arranged, stainless steel bushes 51 are embedded at two ends of a roller surface of the synchronous rod 5 to form a synchronous rod protection mechanism to protect shaft heads of the synchronous rod 5 and the worm shaft 71, radial jumping of the synchronous rod is effectively controlled within an allowable range, the jumping of the synchronous rod is greatly reduced to generate a centrifugal force, even if irresistible factors cause the shaft heads of the worm shaft to be broken, the synchronous rod can be supported by flange steel sleeves at two ends to avoid the falling accident, and great economic loss of a company can be avoided. In addition, the protection mechanism has a sealing and corrosion-proof effect on the two gear couplings 8.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a paper machine transfer roll hoisting device protection machanism which characterized in that: including establishing at the epaxial bearing gland of worm and with the steel bushing of bearing gland assembly, the other pot head of steel bushing is established on the synchronizing bar, the outside of synchronizing bar be equipped with the stainless steel bush of steel bushing assembly, the steel bushing with nylon bush has been inlayed between the stainless steel bush.

2. A paper machine transfer roll lifting device protection mechanism as claimed in claim 1, characterized in that: the bearing gland is a flange plate bearing gland, and two sides of the flange plate bearing gland are respectively fixed with the speed reducer and the steel sleeve.

3. A paper machine transfer roll lifting device protection mechanism as claimed in claim 1, characterized in that: the end part of the steel sleeve is provided with a lining pressing plate for limiting one end of the nylon lining, and the steel sleeve positioned at the other end of the nylon lining is provided with a groove for limiting the other end of the nylon lining.

4. A paper machine transfer roll lifting device protection mechanism as claimed in claim 3, characterized in that: the bushing pressing plate is of an annular structure, and the bushing pressing plate is sleeved on the stainless steel bushing and fixedly connected with the end part of the steel bushing.

5. A paper machine transfer roll lifting device protection mechanism according to any one of claims 1 to 4, characterized in that: and a gap of 0.5-1.0mm is formed between the stainless steel bushing and the nylon bushing.

6. A paper machine transfer roll lifting device protection mechanism as claimed in claim 5, characterized in that: the nylon bush is a wear-resistant oil nylon bush, communicated oil holes are formed in the steel sleeve and the wear-resistant oil nylon bush, and a circumferential oil groove is formed in the wear-resistant oil nylon bush.

7. A paper machine transfer roll lifting device protection mechanism as claimed in claim 6, characterized in that: and an oil nozzle is arranged at the inlet end of the oil hole.