CN213321223U - Vulcanizing drum bearing fixing device of drum type vulcanizing machine - Google Patents

Abstract

The utility model relates to a bearing fixing device, in particular to a vulcanizing drum bearing fixing device of a drum vulcanizer, which comprises a vulcanizing drum shaft head, a bearing seat and a taper sleeve; the bearing support part on the vulcanizing drum shaft head comprises a first bearing support part at the outer end and a second bearing support part at the inner end; the bearing seat is sleeved outside the bearing support part, and the taper sleeve is sleeved on the first bearing support part; the inner end part of the first bearing supporting part is provided with a distance sleeve, a taper sleeve pressing device is arranged on the first bearing supporting part outside the taper sleeve, and the taper sleeve pressing device comprises a sleeve external thread haven ring, a locking internal thread ring and a piston ring. The utility model discloses can ensure bearing supporting center furthest's design value that is close, can ensure that the taper sleeve is steadily impressed and reach the complete laminating in the bearing taper hole, guarantee bearing supporting power reliable and stable and simple to operate, practice thrift the cost, it is convenient to dismantle.

Description

Vulcanizing drum bearing fixing device of drum type vulcanizing machine

Technical Field

The utility model belongs to the technical field of a bearing fixing device and specifically relates to a drum vulcanizer vulcanizes drum bearing fixing device.

Background

With the development of economy, the living standard of people is continuously improved, and the requirements of people on the stability and the reliability of mechanical equipment are also continuously improved. The bearing is one of the most common parts in mechanical equipment, and with the rapid development of bearing technologies at home and abroad, the structure, tolerance and internal clearance of the bearing can meet most of use requirements. In many equipment failures caused by bearing damage, the proportion of the bearing fixing devices is unreasonable. This puts higher demands on the fixing means of the bearing. The diameter and the length of the roller surface of the vulcanizing drum are both larger, and the difficulty of directly processing a taper shaft head on an external circular grinder is increased along with the increase of the diameter and the length of the roller surface, so that the cost is increased. With the wide application of some large-specification drum-type vulcanizing machines, in order to save cost, most of bearing supporting positions of shaft heads are processed into cylinders, and conical sleeve transition and conical hole bearings are combined to form supports. In the assembling process of taper sleeve and taper hole bearing, the precision of bearing support position had both been guaranteed, the laminating degree of taper sleeve and bearing inner conical surface had been guaranteed again, conventional way is with clamp plate and bolt with the taper sleeve top bearing inner conical surface, must go on one by one because of the bolt-up, must lead to the taper sleeve to go into with local elder generation when the top, the process that other parts were followed up, therefore the taper sleeve has very big probability to be the slope, and can not realize the complete laminating of the conical surface, thereby lead to the atress of bearing support uneven and influence life, increase running cost.

Disclosure of Invention

The utility model aims at solving the above problem, provide a drum vulcanizer vulcanization drum bearing fixing device, can effectively reduce the uneven phenomenon of drum vulcanizer bearing deflection and bearing atress, ensure the stability of vulcanizing drum, guarantee the operation of vulcanizer safety, stability, practice thrift the maintenance cost.

According to the technical scheme of the utility model, the device for fixing the vulcanizing drum bearing of the drum vulcanizer comprises a vulcanizing drum shaft head, a bearing seat and a taper sleeve; the vulcanizing drum shaft head is provided with a bearing support part, the bearing support part comprises a first bearing support part at the outer end and a second bearing support part at the inner end, and the diameter of the first bearing support part is smaller than that of the second bearing support part; the bearing seat is sleeved outside the bearing support part, an inner gland is arranged at the inner end of the bearing seat, an outer gland is arranged at the outer end of the bearing seat, an inner oil seal cover is arranged between the inner gland and the second bearing support part, and an outer oil seal cover is arranged between the outer gland and the first bearing support part; the taper sleeve is sleeved on the first bearing supporting part; the inner tip of first bearing support portion is equipped with the distance cover, be equipped with taper sleeve push in device on the first bearing support portion between taper sleeve and the outer gland, taper sleeve push in device establishes the external screw thread haversian circle on the first bearing support portion, utilizes the screw thread to install the locking internal thread circle on the external screw thread haversian circle and install the piston ring in the terminal surface annular groove in the locking internal thread circle including the cover, it has the quick-operation joint mounting hole to open on the locking internal thread circle.

Furthermore, the outer end face of the locking inner thread ring is provided with a hole communicated with the annular groove, a dial indicator is installed in the hole, and a measuring needle of the dial indicator contacts with a shaft shoulder of the piston ring.

Furthermore, an annular groove is formed in the first bearing supporting part, and the external thread Harvard ring is installed in the annular groove.

Furthermore, an O-shaped sealing ring is arranged between the piston ring and the locking inner thread ring.

The beneficial effects of the utility model reside in that: the adoption of the adjustable distance sleeve can ensure that the bearing support center is close to the design value to the maximum extent; the taper sleeve is adopted to fix the bearing, so that the processing cost of the shaft head of the vulcanizing drum can be greatly reduced, and the cost is saved; the hydraulic nut is accurately used for locking the internal thread ring, so that the taper sleeve can be stably pressed into the bearing taper hole to be completely attached, and the bearing supporting force is stable and reliable and the mounting is convenient; the taper sleeve can be pushed out of the bearing taper hole by adopting a hydraulic nut in threaded fit with the taper sleeve when the taper sleeve is detached, and the disassembly is convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of reference numerals: 1-vulcanizing drum shaft head, 2-inner oil seal cover, 3-inner gland, 4-bearing seat, 5-distance sleeve, 6-bearing, 7-taper sleeve, 8-piston ring, 9-O-shaped seal ring, 10-locking inner thread ring, 11-external thread haver ring, 12-outer gland and 13-outer oil seal cover.

Detailed Description

The invention will be further described with reference to the following specific embodiments and the accompanying drawings.

As shown in the figure: a vulcanizing drum bearing fixing device of a drum type vulcanizing machine comprises a vulcanizing drum shaft head 1, a bearing seat 4 and a taper sleeve 7. The vulcanizing drum shaft head 1 is provided with a bearing support part, the bearing support part comprises a first bearing support part at the outer end and a second bearing support part at the inner end, and the diameter of the first bearing support part is smaller than that of the second bearing support part. The bearing seat 4 is sleeved outside the bearing support part, an inner gland 3 is arranged at the inner end of the bearing seat 4, an outer gland 12 is arranged at the outer end of the bearing seat 4, an inner oil seal cover 2 is arranged between the inner gland 3 and the second bearing support part, and an outer oil seal cover 13 is arranged between the outer gland 12 and the first bearing support part. The taper sleeve 7 is sleeved on the first bearing supporting part. The inner end of the first bearing support part is provided with a distance sleeve 5. A taper sleeve pressing-in device is arranged on a first bearing supporting part between the taper sleeve 7 and the outer gland 12 and comprises an external thread half ring 11, a locking internal thread ring 10 and a piston ring 8. The external thread Harvard ring 11 is sleeved on the first bearing supporting part, the locking internal thread ring 10 is arranged on the external thread Harvard ring 11 and is a steel ring with an internal thread hole and a groove on one surface, and the piston ring 8 is arranged in an annular groove of the inner end surface of the locking internal thread ring 10. A quick connector mounting hole is formed in the locking inner thread ring 10, is a threaded hole and is used for connecting a high-pressure oil pipe of a hydraulic pump; the locking female thread ring 10 is provided with two rings, one is arranged on the outer end face of the locking female thread ring 10, and the other is arranged on the side wall of the locking female thread ring 10 (when the locking female thread ring is not used, a hole needs to be plugged by a screw plug).

During installation, the locking inner thread ring 10 is screwed on the matching thread of the outer thread Harvard ring 11, the piston ring 8 is retracted into the annular groove of the locking inner thread ring 10 until the piston ring 8 abuts against the outer end face of the taper sleeve 7, and the thread of the locking inner thread ring 10 is meshed on the outer thread of the outer thread Harvard ring 11 as much as possible. When high-pressure oil is pumped into an oil chamber between the locking internal thread ring 10 and the piston ring 8, the piston ring 8 is pressed and pushed to push the taper sleeve 7 into the taper hole of the bearing 6. According to the principle of constant pressure, the force generated by the piston ring 8 on the taper sleeve 7 is evenly distributed in the whole circumferential surface, so that the taper sleeve 7 is completely attached to the taper hole of the bearing 6. After the installation is finished, an oil return valve of the hydraulic pump is loosened, and high-pressure oil flows back to the pump from the position between the locking internal thread ring 10 and the piston ring 8. The locking female thread ring 10 is screwed further inwards until the piston ring 8 is fully retracted into the groove of the locking female thread ring 10 and the bearing 6 is fully locked in the desired position by applying a suitable tightening force.

Specifically, the outer end face of the locking inner thread ring 10 is provided with a hole communicated with the annular groove, a dial indicator is installed in the hole, and a measuring needle of the dial indicator contacts with a shaft shoulder of the piston ring 8 for accurately measuring the axial displacement of the piston ring 8. The first bearing supporting part is provided with an annular groove, and the external thread half ring 11 is arranged in the annular groove, so that the installation stability is ensured. Two O-shaped sealing rings 9 are arranged between the combination surfaces of the locking inner thread ring 10 and the piston ring 8 for sealing, so that the sealing performance of the structure is ensured.

The utility model relates to a lean on hydraulic pressure and tight bearing fixing device to tight power and taper sleeve are pushed the equal strict control of displacement volume in bearing taper hole, and its simple structure is reliable, easy maintenance.

Claims (4)

1. A vulcanizing drum bearing fixing device of a drum type vulcanizing machine comprises a vulcanizing drum shaft head (1), a bearing seat (4) and a taper sleeve (7); the vulcanizing drum shaft head (1) is provided with a bearing support part, the bearing support part comprises a first bearing support part at the outer end and a second bearing support part at the inner end, and the diameter of the first bearing support part is smaller than that of the second bearing support part; the bearing seat (4) is sleeved outside the bearing support part, an inner gland (3) is arranged at the inner end of the bearing seat (4), an outer gland (12) is arranged at the outer end of the bearing seat (4), an inner oil seal cover (2) is arranged between the inner gland (3) and the second bearing support part, and an outer oil seal cover (13) is arranged between the outer gland (12) and the first bearing support part; the taper sleeve (7) is sleeved on the first bearing supporting part; its characterized in that, the inner tip of first bearing support portion is equipped with distance cover (5), be equipped with taper sleeve push in device on the first bearing support portion between taper sleeve (7) and outer gland (12), taper sleeve push in device establishes external screw thread haversian (11) on first bearing support portion, utilizes locking internal thread circle (10) of screw thread installation on external screw thread haversian (11) and installs piston ring (8) in locking internal thread circle (10) inner terminal surface annular groove including the cover, it has the quick-operation joint mounting hole to open on locking internal thread circle (10).

2. A bearing fixing device for a vulcanizing drum of a drum type vulcanizing machine as claimed in claim 1, characterized in that the outer end surface of the locking internal thread ring (10) is provided with a hole communicated with the annular groove, a dial indicator is arranged in the hole, and a measuring needle of the dial indicator contacts with a shaft shoulder of the piston ring (8).

3. A drum vulcanizer bearing fixture as set forth in claim 1, wherein said first bearing support has an annular groove formed therein, and said externally threaded haversian ring (11) is mounted in the annular groove.

4. A device for fixing a bearing on a drum of a drum vulcanizer as set forth in claim 1, wherein an O-ring (9) is provided between said piston ring (8) and said locking internally threaded ring (10).

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