CN219570857U - Labyrinth seal for slag discharging roller of bucket wheel reclaimer - Google Patents

Abstract

The utility model provides a labyrinth seal for a slag discharging roller of a bucket wheel reclaimer, and relates to the technical field of bearing seat sealing. The labyrinth seal for the slag discharging roller of the bucket wheel reclaimer comprises a static seal, wherein a dynamic seal is clamped at the top of the static seal, and a three-stage sealing ring, a two-stage sealing ring and a one-stage sealing ring are clamped at the outer side of the dynamic seal. The labyrinth seal for the slag discharging roller of the bucket wheel reclaimer is characterized in that the semi-embedded sealing ring is connected with the static seal through the fixing bolt under the coverage of the compression ring to form three radial seals, so that the common labyrinth seal is formed into a composite flow resistance type seal, the invasion of coal dust and sewage into the slag discharging roller bearing seat is effectively reduced, the waterproof and dustproof effects of the labyrinth seal are obviously improved, the labyrinth seal is easy to manufacture and convenient to install, is suitable for severe working conditions, can effectively prolong the service life of a roller bearing, reduces the failure shutdown time caused by bearing damage, and effectively improves the production efficiency of equipment.

Description

Labyrinth seal for slag discharging roller of bucket wheel reclaimer

Technical Field

The utility model relates to a labyrinth seal, in particular to a labyrinth seal for a slag discharging roller of a bucket wheel reclaimer, and belongs to the technical field of bearing seat sealing.

Background

The bucket wheel reclaimer is large mechanical equipment for digging and taking bulk materials stored in a storage yard, and is widely applied to professional coal wharfs, power plants and the like. The main structure of the bucket wheel reclaimer is as follows: bucket wheel mechanism, cantilever belt feeder mechanism, every single move mechanism, rotation mechanism, running gear etc. bucket wheel reclaimer arranges sediment cylinder and is the bend pulley of cantilever belt feeder forefront, and the sediment cylinder operating mode is abominable under the wheel fill of locating, and blanking raise dust and dust fall water smoke put forward serious challenge to the sealing performance of sediment cylinder bearing frame when bucket wheel reclaimer gets the material.

According to patent number CN 102807105A, a sealing device of a bucket-wheel mechanism of a bucket-wheel stacker reclaimer is provided with a moving part fixed on a wheel body of the bucket-wheel stacker reclaimer; a stationary part detachably mounted on a feed plate of the bucket-wheel stacker reclaimer; the moving part and the static part are in direct contact to form a contact type dynamic seal. When the wheel body of the bucket wheel mechanism circumferentially rotates, the whole bucket wheel mechanism sealing device works, so that the situation that the residual materials and the tailing which are not completely discharged in the bucket of the bucket wheel mechanism cannot fall onto the lower surface of the belt conveyor through a gap between the wheel body and the material sliding plate is ensured, the problem of belt deviation of the head part of the belt conveyor is solved, the operation environment is improved, the material loss is avoided, and the work efficiency is improved.

Under the prior art, the bucket wheel reclaimer arranges sediment drum bearing frame and uses ordinary staggered labyrinth seal, moves sealing ring comb tooth number and is 2, simple structure, and sealed effect is general, and lubricating grease pollution is comparatively serious in the bearing frame, and drum bearing damage frequency is higher, increases the work load of overhauling maintenance by a wide margin, influences enterprise production efficiency.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the problems that in the prior art, a common staggered labyrinth seal is used for a deslagging roller bearing seat of a bucket-wheel reclaimer, the number of teeth of a movable sealing ring is 2, the structure is simple, the sealing effect is general, the pollution of lubricating grease in the bearing seat is serious, the damage frequency of a roller bearing is high, the workload of overhauling and maintenance is greatly increased, and the production efficiency of enterprises is influenced.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a labyrinth seal for bucket wheel reclaimer arranges sediment cylinder, includes the static seal, static seal top joint has dynamic seal, dynamic seal outside joint has tertiary sealing washer, second grade sealing washer and one-level sealing washer, the second grade sealing washer sets up between one-level sealing washer and tertiary sealing washer, one-level sealing washer top is provided with the clamping ring, threaded connection has six one-level sealing fixing bolt between clamping ring and the static seal, and this structure preparation is easy, simple installation is applicable to abominable operating mode, can effectively prolong cylinder bearing life, reduces the trouble time duration of shut down because of the bearing damage brings, effectively improves equipment production efficiency.

Preferably, six threaded holes are formed in the compression ring and the primary sealing ring, the primary sealing fixing bolts are in threaded connection with the compression ring through threaded holes, the primary sealing fixing bolts penetrate through the primary sealing ring, the semi-embedded primary sealing ring is connected with the static seal through the primary sealing fixing bolts under the coverage of the compression ring, the primary sealing ring is installed in the embedded primary sealing groove after being sheared at the non-bolt hole, and the semi-embedded primary sealing ring is connected with the static seal through the fixing bolts under the coverage of the compression ring.

Preferably, the top of the static seal is in threaded connection with a plurality of static seal fixing bolts, and the static seal can be installed and fixed by arranging the static seal fixing bolts.

Preferably, the dynamic seal outside has seted up one-level seal groove, second grade seal groove and tertiary seal groove in proper order, the one-level seal ring sets up inside the one-level seal groove, the second grade seal ring sets up inside the second grade seal groove, the tertiary seal ring sets up inside the tertiary seal groove, processes three radial annular seal grooves at the outer lane periphery of dynamic seal for install one half embedded seal ring and two embedded rubber seal rings.

Preferably, the movable seal outside threaded connection has movable seal fixing bolts, the quantity of movable seal fixing bolts sets up to a plurality ofly.

Preferably, the dynamic seal bottom is fixedly connected with sealing comb teeth, sealing comb tooth grooves are formed between the sealing comb teeth, and clamping grooves matched with the sealing comb teeth are formed in the top of the static seal.

Preferably, the material of one-level sealing ring sets up to wool felt, the material of second grade sealing washer sets up to fluororubber, the second grade sealing washer is embedded rubber seal, embedded rubber seal diameter is slightly less than seal groove diameter.

The utility model provides a labyrinth seal for a slag discharging roller of a bucket wheel reclaimer, which has the following beneficial effects:

1. the labyrinth seal for the slag discharging roller of the bucket wheel reclaimer is characterized in that on the basis of two axial labyrinth seal comb teeth, three radial annular sealing grooves are processed on the circumferential surface of an outer ring of a dynamic seal, and are used for installing a semi-embedded sealing ring and two embedded rubber sealing rings, the semi-embedded sealing ring is connected with a static seal through a fixing bolt under the coverage of a pressing ring, so that three radial seals are formed, the common labyrinth seal becomes a composite flow resistance type seal, coal dust and sewage are effectively reduced from invading the inside of a slag discharging roller bearing seat, the waterproof and dustproof effects of the labyrinth seal are obviously improved, the labyrinth seal is easy to manufacture and convenient to install, is suitable for severe working conditions, can effectively prolong the service life of the roller bearing, reduces the failure shutdown time caused by bearing damage, and effectively improves the production efficiency of equipment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a primary seal groove structure according to the present utility model.

In the figure: 1. static sealing; 2. dynamic sealing; 3. a compression ring; 4. a primary seal ring; 5. a second-stage sealing ring; 6. three-stage sealing rings; 7. a first-stage seal groove; 8. a second-stage seal groove; 9. three-stage sealing grooves; 10. static seal fixing bolts; 11. a first-stage sealing fixing bolt; 12. a dynamic seal fixing bolt; 13. sealing the comb tooth grooves; 21. sealing the comb teeth.

Detailed Description

The embodiment of the utility model provides a labyrinth seal for a slag discharging roller of a bucket-wheel reclaimer.

Please refer to fig. 1 and 2, including static seal 1, static seal 1 top joint has dynamic seal 2, dynamic seal 2 outside joint has tertiary sealing washer 6, second grade sealing washer 5 and one-level sealing washer 4, second grade sealing washer 5 sets up between one-level sealing washer 4 and tertiary sealing washer 6, one-level sealing washer 4 top is provided with clamping ring 3, threaded connection has six one-level sealing fixing bolt 11 between clamping ring 3 and the static seal 1, six screw holes have been seted up inside clamping ring 3 and the one-level sealing washer 4, pass through threaded hole threaded connection between one-level sealing fixing bolt 11 and the clamping ring 3, one-level sealing fixing bolt 11 runs through one-level sealing washer 4 inside, one-level sealing washer 4 is packed into embedded one-level seal groove 7 after non-bolt hole department cuts, be connected with static seal 1 through one-level sealing fixing bolt 11 under the cover of clamping ring 3, semi-embedded one-level sealing washer 4 is connected with static seal 1 through one-level sealing fixing bolt 11 under the cover of clamping ring 3, the quantity of static seal fixing bolt 10 is set up to a plurality of static seal fixing bolts 1 top threaded connection, through setting up static seal fixing bolt 10, thereby can install static seal 1 fixedly, dynamic seal 2, one-level sealing washer 7, two-level sealing washer 8 and three-level sealing washer 9 are seted up in proper order.

The primary seal ring 4 is arranged inside the primary seal groove 7, the secondary seal ring 5 is arranged inside the secondary seal groove 8, the tertiary seal ring 6 is arranged inside the tertiary seal groove 9, three radial annular seal grooves are processed on the circumferential surface of the outer ring of the dynamic seal 2 and used for installing one semi-embedded seal ring and two embedded rubber seal rings, the outer side of the dynamic seal 2 is in threaded connection with dynamic seal fixing bolts 12, the number of the dynamic seal fixing bolts 12 is multiple, the bottom of the dynamic seal 2 is fixedly connected with seal comb teeth 21, seal comb tooth grooves 13 are arranged between the seal comb teeth 21, clamping grooves matched with the seal comb teeth 21 are formed in the top of the static seal 1, the primary seal ring 4 is made of wool felt, the secondary seal ring 5 is made of fluorinated rubber, and the diameter of the secondary seal ring 5 is slightly smaller than that of the seal groove.

Specifically: the utility model discloses a bucket wheel material taking machine, which is characterized in that improvement is carried out on the basis of two axial labyrinth seal comb teeth 21, three radial annular sealing grooves are processed on the circumferential surface of the outer ring of a dynamic seal 2 and are used for installing a semi-embedded sealing ring and two embedded rubber sealing rings, the semi-embedded primary sealing ring 4 is connected with a static seal 1 through a primary sealing fixing bolt 11 under the coverage of a pressing ring 3, the primary sealing ring 4 made of wool felt material becomes a radial dustproof barrier, coal particles with the diameter being larger than 1mm are effectively prevented from invading a labyrinth gap, a secondary sealing ring 5 and a tertiary sealing ring 6 made of fluorinated rubber material are respectively and tightly buckled into the secondary sealing groove 8 and the tertiary sealing groove 9 to form two radial dustproof and waterproof barriers, further invasion of coal dust is effectively prevented, grease deterioration and bearing damage caused by the invasion of coal dust are effectively prevented, the three-stage radial sealing design is adopted, the common labyrinth sealing is enabled to be a composite flow resistance type sealing, the waterproof and dustproof effects of the labyrinth sealing are improved, the service life of the bucket wheel material taking machine is prolonged, the problem that the frequency of a roller bearing is damaged due to poor labyrinth sealing effect and lubrication failure is solved, and the production efficiency is improved.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. Labyrinth seal for a bucket wheel reclaimer slag discharge roller, comprising a static seal (1), characterized in that: the static seal (1) top joint has dynamic seal (2), dynamic seal (2) outside joint has tertiary sealing washer (6), second grade sealing washer (5) and one-level sealing washer (4), second grade sealing washer (5) set up between one-level sealing washer (4) and tertiary sealing washer (6), one-level sealing washer (4) top is provided with clamping ring (3), threaded connection has six one-level seal fixing bolt (11) between clamping ring (3) and static seal (1).

2. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: six threaded holes are formed in the compression ring (3) and the primary sealing ring (4), the primary sealing fixing bolt (11) is in threaded connection with the compression ring (3) through the threaded holes, and the primary sealing fixing bolt (11) penetrates through the primary sealing ring (4).

3. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: the top of the static seal (1) is in threaded connection with static seal fixing bolts (10), and the number of the static seal fixing bolts (10) is multiple.

4. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: one-level seal groove (7), second grade seal groove (8) and tertiary seal groove (9) have been seted up in proper order in dynamic seal (2) outside, one-level seal ring (4) set up inside one-level seal groove (7), second grade seal ring (5) set up inside second grade seal groove (8), tertiary seal ring (6) set up inside tertiary seal groove (9).

5. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: the movable sealing device is characterized in that movable sealing fixing bolts (12) are connected to the outer side of the movable sealing device (2) in a threaded mode, and the number of the movable sealing fixing bolts (12) is multiple.

6. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: the dynamic seal (2) is characterized in that sealing comb teeth (21) are fixedly connected to the bottom of the dynamic seal (2), sealing comb tooth grooves (13) are formed between the sealing comb teeth (21), and clamping grooves matched with the sealing comb teeth (21) are formed in the top of the static seal (1).

7. A labyrinth seal for a bucket wheel reclaimer slag bowl as defined in claim 1, wherein: the material of one-level sealing ring (4) sets up to wool felt, the material of second grade sealing washer (5) sets up to fluororubber.