CN215541638U

CN215541638U - Dustproof sealing device for shaft outlet hole of box body of chain crusher

Info

Publication number: CN215541638U
Application number: CN202121840634.XU
Authority: CN
Inventors: 陈爱民; 倪建成; 庄高明; 马红
Original assignee: Jiangsu New Honda Group
Current assignee: Jiangsu New Honda Group
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-18
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a dustproof sealing device for an outlet shaft hole of a box body of a chain type crusher, which comprises a fan type material blocking assembly and a screw type blocking protection assembly; the fan type material blocking assembly comprises an impeller and a circular hole baffle, is clamped on a main shaft of the crusher in a semi-split structure, is positioned on the inner wall side of an output shaft hole of the crusher box body and keeps a distance with the inner wall side; the screw type barrier protection assembly comprises a wear-resistant sealing protection sleeve and a wear-resistant screw rod sleeve, the wear-resistant sealing protection sleeve is fixedly assembled on the outer wall side of an output shaft hole of the crusher box body, threads are arranged on the outer surface of the wear-resistant screw rod sleeve, and the wear-resistant screw rod sleeve is assembled on a main shaft of the crusher and corresponds to the position of the wear-resistant sealing protection sleeve to form clearance fit. The device can effectively prevent the material particle dust splashed by the crushing operation from entering the vicinity of the shaft outlet hole of the box body, thereby realizing the excellent performances of dustproof sealing, maintenance-free, no heating, no vibration transmission, low noise, good dust-free environment, safety and the like of the chain type crusher, and ensuring higher start-up rate and capacity of the chain type crusher.

Description

Dustproof sealing device for shaft outlet hole of box body of chain crusher

Technical Field

The utility model relates to the technical field of chain crushers, in particular to a dustproof sealing device for an outlet shaft hole of a box body of a chain crusher.

Background

In the technical field of chain type crushing equipment, the dustproof sealing of the shaft outlet hole of the box body is usually sealed by adopting a filler, and the stable work of the dustproof sealing can be directly related to the normal use and the capacity of a chain type crusher. The sealing condition needs to be frequently inspected by inspection when the packing is adopted for sealing, and the packing gland needs to be stopped and appropriately tightened in time when slight leakage occurs, so that the sealing requirement is ensured; when the material leakage is more, the machine needs to stop to check the abrasion condition of the filler, and when the abrasion is more serious, the filler needs to be replaced and repaired in time. When the packing gland is tightened, the packing gland can not be compressed excessively so as to avoid accelerating heating abrasion and increasing power loss. With the requirement of pulverization of the crushed particles, the crushing rotating speed is increased, a large amount of dust is generated, and although the problems of heating and abrasion can be relieved by adopting the packing seal with a water (liquid) cooling device, the risk of water (liquid) leakage entering materials and environment still exists, and the problems of dust leakage, power loss and the like still exist. For this reason, a new technical solution is needed to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model is expected to provide a dustproof sealing device for an outlet shaft hole of a box body of a chain crusher, which can effectively prevent material particle dust splashed during crushing operation from entering the vicinity of the outlet shaft hole of the box body, so that the chain crusher has the advantages of being free from maintenance, free from heating, free from vibration transmission, low in noise, free from dust leakage, good in environment, safe and the like, and the chain crusher is ensured to have higher start-up rate and capacity.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a dustproof sealing device for an outlet shaft hole of a box body of a chain type crusher, which comprises a fan type material blocking assembly and a screw type blocking protection assembly, wherein the fan type material blocking assembly is arranged on the outlet shaft hole of the box body of the chain type crusher; the fan type material blocking assembly comprises an impeller and a circular hole baffle, is clamped on the main shaft of the crusher in a semi-split structure, is positioned on the inner wall side of the outlet shaft hole of the crusher box body, keeps a distance from the inner wall side, is close to one side of the outlet shaft hole of the box body, and is far away from the other side of the outlet shaft hole of the box body; screw separation protection component includes wear-resisting sealed lag and wear-resisting screw rod cover, the fixed equipment of wear-resisting sealed lag is in the outer wall side in breaker box axle hole, the surface of wear-resisting screw rod cover is equipped with the screw thread, assemble on the breaker main shaft with the position of wear-resisting sealed lag corresponds, forms clearance fit.

Preferably, the outer surface of the wear-resistant screw sleeve is provided with a triangular thread or a trapezoidal thread.

Preferably, the number of the impeller teeth of the impeller is even.

Preferably, the number of impeller teeth of the impeller is 6, an included angle of 30 degrees is formed between the windward surface and the leeward surface of each impeller tooth, and an included angle of 90 degrees is formed between the windward surface and the leeward surface of each adjacent impeller tooth.

Preferably, the wear-resistant sealing and protecting sleeve is of an integral structure or a semi-split structure.

Preferably, the fan-type material blocking assembly keeps a distance of 10mm from the inner wall side.

Preferably, the wear-resistant screw sleeve and the wear-resistant sealing protection sleeve form 0.2-0.3mm clearance fit.

The utility model has the following beneficial effects:

1) the fan type material blocking assembly clamped on the main shaft of the crusher is adopted, high-speed rotating air generated during working can effectively prevent material particle dust splashed and raised during crushing operation from entering the vicinity of the shaft outlet hole of the box body;

2) the assembled and fixed wear-resistant sealing protective sleeve is adopted on the outer wall side of the shaft outlet hole of the crusher box body and cooperates with the wear-resistant screw sleeve rotating at a high speed during working to compress and push air into the box body, so that the material dust can be further prevented from leaking outwards, and the environment is protected;

3) the wear-resistant sealing protective sleeve is assembled and fixed, so that the high-speed rotating shaft is protected safely without an additional protective cover;

4) when the crusher works, the fan-type material blocking assembly and the wear-resistant screw sleeve rotate along with the main shaft of the crusher, do not contact with the box body and the wear-resistant sealing protective sleeve at all, do not have friction heating, wear and power loss, do not transmit vibration, have low noise, do not need to inspect the sealing condition frequently, and do not need to stop, maintain and repair due to filler wear;

5) the dustproof sealing device disclosed by the utility model is maintenance-free and long in service life, and ensures higher start-up rate and capacity of the chain crusher.

Drawings

FIG. 1 is a schematic structural view of a dustproof sealing device for an outlet shaft hole of a box body of a chain crusher according to the utility model;

FIG. 2 is an exploded view of the fan-type dam assembly of the present invention;

wherein: the structure comprises a bearing seat kit 1, a fan-type material blocking assembly 2, a wear-resistant sealing protective sleeve 3, a wear-resistant screw sleeve 4, a gap formed by the wear-resistant screw sleeve and the wear-resistant sealing protective sleeve 5, a box body 6, a shaft outlet hole 7, a main shaft 8, an impeller 21, a circular hole baffle 22, a gasket 23, a hexagon bolt 24, an included angle formed by the windward side and the leeward side of impeller teeth 25 and an included angle formed by the windward side and the leeward side of adjacent impeller teeth 26.

Detailed Description

So that the manner in which the features and aspects of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

Fig. 1 is a schematic structural view of a dustproof sealing device for an outlet shaft hole of a box body of a chain crusher, which comprises a fan-type material blocking assembly 2 and a screw-type blocking protection assembly as shown in fig. 1; the fan type material blocking assembly comprises an impeller 21 and a circular hole baffle 22, is clamped on the crusher main shaft 8 in a half-and-half split structure, is positioned on the inner wall side of the crusher box body outlet shaft hole 7 and keeps a distance with the inner wall side, the impeller 21 is close to one side of the box body outlet shaft hole 7, and the circular hole baffle 22 is far away from the other side of the box body outlet shaft hole 7; screw separation protection component includes wear-resisting sealed lag 3 and wear-resisting screw rod cover 4, the fixed outer wall side in breaker box axle hole of equipment of wear-resisting sealed lag 3, the surface of wear-resisting screw rod cover 4 is equipped with the screw thread, assemble on the breaker main shaft with the position of wear-resisting sealed lag corresponds, forms the 5 cooperations in clearance.

Above-mentioned inner wall side in 6 axle holes that go out of chain breaker box adopts the fan formula of pressing from both sides dress on the breaker main shaft to keep off material subassembly 2, and the high-speed rotatory wind that produces at the during operation can effectively the broken operation splash the material granule dust of raiseing and enter into near box axle holes that go out.

The aforesaid is being located the outer wall side in chain breaker box axle hole, adopts the fixed wear-resisting sealed lag of equipment, with the high-speed rotatory wear-resisting screw rod cover combined action of during operation, forms to compress the propelling movement air in the box, can further the separation stop the material dust and run outward, and environmental protection is good.

Above-mentioned the surface of wear-resisting screw rod cover is preferred to be set up triangle-shaped screw thread or trapezoidal thread, produces compressed air when following breaker main shaft together high-speed rotation, can form to the internal compressed propelling movement air of box under wear-resisting sealed lag combined action, can further the separation stop the material dust and run outward.

Preferably, the number of the impeller teeth of the impeller is even.

Experiments prove that the optimal design of the angles of the windward side and the leeward side has the largest rotating wind speed and the best effect of blocking the material particles and dust.

The wear-resistant sealing protective sleeve fixed by assembly has a safety protection effect on the high-speed rotating shaft, and a protective cover is not required to be additionally arranged.

The inner hole of the wear-resistant screw sleeve is in interference fit with the main shaft of the crusher, the wear-resistant screw sleeve is assembled on the main shaft of the crusher and corresponds to the position of the wear-resistant sealing protective sleeve to form clearance fit, when the crusher works, the fan-type material blocking assembly and the wear-resistant screw sleeve rotate along with the main shaft of the crusher and do not contact with the box body and the wear-resistant sealing protective sleeve, friction, heat, abrasion and power loss do not exist, vibration and noise are not transmitted, the sealing condition is not required to be inspected frequently, and the maintenance of parking maintenance due to the abrasion of the filler is not required.

According to the characteristic that the crushed material is MCP, the material of the wear-resistant sealing protection sleeve and the wear-resistant screw sleeve is preferably 904L or 2205.

Fig. 2 is an exploded view of the fan-type material blocking assembly of the present invention, as shown in fig. 2, the fan-type material blocking assembly includes an impeller 21 and a circular hole blocking plate 22, and is a half-and-half split structure, and is fixed by a spacer 23 and a hexagon bolt 24, the number of impeller teeth of the impeller 21 is preferably even, an included angle 25 of 30 ° is preferably set between a windward side and a leeward side of the impeller teeth, an included angle 26 between a windward side and a leeward side of adjacent impeller teeth is preferably 90 °, and the preferable design of the angle between the windward side and the leeward side is verified by experiments that the rotating wind speed is the largest and the effect of blocking particles and dust of the material is the best.

The specific type of the above-mentioned devices is not limited and detailed, and the deep connection mode of the above-mentioned devices is not detailed, and can be understood by those skilled in the art as the common general knowledge.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A dustproof sealing device for an outlet shaft hole of a box body of a chain type crusher is characterized by comprising a fan type material blocking assembly and a screw type blocking protection assembly; the fan type material blocking assembly comprises an impeller and a circular hole baffle, is clamped on the main shaft of the crusher in a semi-split structure, is positioned on the inner wall side of the outlet shaft hole of the crusher box body, keeps a distance from the inner wall side, is close to one side of the outlet shaft hole of the box body, and is far away from the other side of the outlet shaft hole of the box body; screw separation protection component includes wear-resisting sealed lag and wear-resisting screw rod cover, the fixed equipment of wear-resisting sealed lag is in the outer wall side in breaker box axle hole, the surface of wear-resisting screw rod cover is equipped with the screw thread, assemble on the breaker main shaft with the position of wear-resisting sealed lag corresponds, forms clearance fit.

2. The dust sealing device for the shaft outlet hole of the box body of the chain crusher as claimed in claim 1, wherein the outer surface of the wear-resistant screw sleeve is provided with a triangular thread or a trapezoidal thread.

3. The dust seal for the exit shaft hole of the chain crusher bin of claim 1 wherein the number of impeller teeth of said impeller is even.

4. The dustproof sealing device for the shaft outlet hole of the box body of the chain crusher as claimed in claim 1 or 3, wherein the number of the impeller teeth of the impeller is 6, an included angle of 30 degrees is formed between the windward side and the leeward side of the impeller teeth, and an included angle of 90 degrees is formed between the windward side and the leeward side of the adjacent impeller teeth.

5. The dust sealing device for the shaft outlet hole of the chain crusher box as claimed in claim 1, wherein the wear resistant sealing boot is of one-piece or semi-split construction.

6. The dust sealing device for the shaft outlet hole of the chain crusher box body as claimed in claim 1, wherein the fan type material blocking assembly keeps a distance of 10mm from the inner wall side.

7. The dust seal for the shaft outlet hole of the chain crusher box according to claim 1, wherein said wear-resistant screw bushing forms a 0.2-0.3mm clearance fit with said wear-resistant sealing and protecting bushing.