CN208311275U - A kind of bearing protection device and its fireworks and firecrackers are mechanical - Google Patents

Abstract

The utility model discloses a kind of bearing protection device and its fireworks and firecrackers are mechanical; including upper cover, lower cover; there are bearing chamber and seal groove between upper and lower cover; around the axis hole formd for axis insertion at seal groove after upper and lower cover closure; there is sealing ring in seal groove; axis is inserted into bearing by axis hole and sealing ring, injects lubricant grease in bearing chamber, makes the substances such as bearing chamber inner bearing and external dust achieve the purpose that be isolated by lubricant grease and sealing ring.Overcoming existing bearing, the service life is short in practical applications, fires the problems such as production accident relative risk height, high production cost; axis, bearing and gunpowder dust, corrosive substance is set to be effectively isolated and protected; production accident risk is reduced, bearing service life is improved, reduces production cost.

Description

A kind of bearing protection device and its fireworks and firecrackers are mechanical

Technical field

The utility model relates to a kind of bearing protection device, especially a kind of bearing protection device and its fireworks and firecrackers machine Tool.

Background technique

Existing fireworks and firecrackers mechanically uses more axis and bearing, plays the role of supporting transmission shaft.But usually these Axis and bearing are all to rely solely on the sealing device of bearing itself outside exposed be mounted on and add lubricant grease to prevent axis Hold the erosion from dust and corrosive substance.However facts proved that, there are a large amount of responsive types in fireworks and firecrackers production process The gunpowder dust of easy firing explosion, the process of bearing rotation can generate heat and friction, the fire powder of responsive type easy firing explosion Dirt easily catches fire on unprotected bearing, generates the risk of combustion explosion accident.

In addition, using the chemical industry materials such as more aluminium silver powder, sulphur, potassium hyperchlorate, potassium nitrate, methanol in fireworks and firecrackers production Material has stronger corrosivity, and the service life is short in practical applications for existing bearing, and replacement is complicated, and operating process fires thing Therefore relative risk is high, high production cost.

Summary of the invention

In order to overcome prior art axis and bearing not to be effectively protected and be isolated, the utility model provides a kind of bearing Axis and bearing can be effectively isolated and be protected with gunpowder dust, corrosive goods by protective device, reduce production accident wind Bearing service life is improved in danger, reduces production cost.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of bearing protection device, including upper cover 1, lower cover 2, there is bearing chamber 3 and seal groove between upper cover 1, lower cover 2, Bearing chamber 3 surround the axis hole formd for axis insertion for installing bearing 6 after upper cover 1, lower cover 2 are closed at seal groove, There is sealing ring in seal groove, is used for closed bearing chamber 3, has the first screw hole 11, second for fixing in upper cover 1, lower cover 2 There is the oilhole 13 of grease up on screw hole 12,1 top of upper cover, can be to avoid because of bearing chamber inner bearing caused by axis hole and extraneous powder The contact of the substances such as dirt.

A kind of bearing protection device, the upper cover 1, lower cover 2 use plastic material or metal material.

A kind of bearing protection device, the upper cover 1, lower cover 2 are made of transparent material or transparent materials.

A kind of bearing protection device, the upper cover 1, lower cover 2 are fixed by riveting or bolt mode.

A kind of bearing protection device, the interior bearing 6 installed of the bearing chamber 3 is roller bearing units of usheing to seat.

One group of seal groove, axis hole and close only can be arranged in side in the upper cover 1, lower cover 2 in a kind of bearing protection device Seal.

A kind of bearing protection device, can be in two sides one group of seal groove, axis hole of each setting simultaneously in the upper cover 1, lower cover 2 And sealing ring, i.e. seal groove includes the first seal groove 4 and the second seal groove 8, and axis hole includes first shaft hole 7 and the second axis Hole 9, sealing ring include the first sealing ring 5 and the second sealing ring 10.

A kind of bearing protection device, the shaft hole diameter that the seal groove is formed is 1-5mm bigger than the diameter of axis, sealing ring The small 0-2mm of the diameter of interior diameter ratio shaft.

The utility model has the beneficial effects that a kind of bearing protection device of the utility model and its fireworks and firecrackers machinery use Axis and bearing during upper and lower cover protection closure assembly is mechanical to fireworks and firecrackers are sealed, and overcome existing bearing in reality The problems such as service life is short in, it is high to fire production accident relative risk, high production cost, make axis and bearing and gunpowder dust, Corrosive substance is effectively isolated and is protected, and production accident risk is reduced, and improves bearing service life, reduces production cost.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is two groups of seal grooves of the utility model, axis hole and ring structure sectional view；

Fig. 2 is the utility model main view；

Fig. 3 is one group of seal groove of the utility model, axis hole and ring structure sectional view.

1. upper cover in figure, 2. lower covers, 3. bearing chambers, 4. first seal grooves, 5. first sealing rings, 6. bearings, 7. One axis hole, 8. second seal grooves, 9. second axis holes, 10. second sealing rings, 11. first screw holes, 12. second screws Hole, 13. oil filler points.

Specific embodiment

[embodiment 1]

As shown in Figure 1 and Figure 2, a kind of bearing protection device includes upper cover 1, lower cover 2, has bearing chamber between upper cover 1, lower cover 2 3 and first seal groove 4, the second seal groove 8, the first seal groove 4 after upper cover 1, lower cover 2 are closed, at the second seal groove 8 Respectively in the first shaft hole 7 and the second axis hole 9 formd for axis insertion, the first seal groove 4, the second seal groove 8 There are the first sealing ring 5 and the second sealing ring 10 respectively, is used for closed bearing chamber 3.When installation, lower cover 2, then the axis that will usher to seat first are installed It holds 6 installations to fix, then axis is passed through into first shaft hole 7, the first sealing ring 5, rolling bearing units 6, the second sealing ring 10 and the second axis hole 9, then cover upper cover 1, and with screw at the first screw hole 11, the second screw hole 12 fixed cover 1, finally from oil filler point 13 Inject lubricating grease.

[embodiment 2]

As shown in figure 3, one group of seal groove, sealing can be only arranged according to out-of-alignment application in a kind of bearing protection device Circle and axis hole, especially for conveyer belt roller bearing both ends bearing protect, it is only necessary to be arranged one group of seal groove, sealing ring and Axis hole, the other side are then set as closed.

Claims (9)

1. a kind of bearing protection device, which is characterized in that including upper cover (1), lower cover (2), upper cover (1), lower cover have axis between (2) Room (3) and seal groove are held, bearing chamber (3) is for installing bearing (6), after upper cover (1), lower cover (2) closure, ring at seal groove Around the axis hole formd for axis insertion, there is sealing ring in seal groove, is used for closed bearing chamber (3), upper cover (1), lower cover (2) On have the first screw hole (11) for fixing, the second screw hole (12), there is the oilhole of grease up on upper cover (1) top (13).

2. a kind of bearing protection device according to claim 1, which is characterized in that upper cover (1), lower cover (2) use plastics Material or metal material.

3. a kind of bearing protection device according to claim 1, which is characterized in that upper cover (1), lower cover (2) are using transparent Material or transparent materials production.

4. a kind of bearing protection device according to claim 2, which is characterized in that the upper cover (1), lower cover (2) pass through Riveting or bolt mode are fixed.

5. a kind of bearing protection device according to claim 1 or 4, which is characterized in that installed in the bearing chamber (3) Bearing (6) is roller bearing units of usheing to seat.

6. a kind of bearing protection device according to claim 1, which is characterized in that can on the upper cover (1), lower cover (2) One group of seal groove, axis hole and sealing ring only are set in side.

7. a kind of bearing protection device according to claim 1, which is characterized in that can on the upper cover (1), lower cover (2) In two sides, respectively one group of seal groove of setting, axis hole and sealing ring, i.e. seal groove include the first seal groove (4) and second simultaneously Seal groove (8), axis hole include first shaft hole (7) and the second axis hole (9), and sealing ring includes that the first sealing ring (5) and second are close Seal (10).

8. a kind of bearing protection device according to claim 1 or 6, which is characterized in that the axis that the seal groove is formed The big 1-5mm of the diameter of diameter ratio shaft in hole, the small 0-2mm of diameter of the interior diameter ratio shaft of sealing ring.

9. a kind of fireworks and firecrackers is mechanical, which is characterized in that have bearing protection device described in claim 1-8 any one.