CN209875746U

CN209875746U - Improved seat type sliding bearing cold tile back structure

Info

Publication number: CN209875746U
Application number: CN201920159174.0U
Authority: CN
Inventors: 董海涛
Original assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Current assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2019-12-31
Anticipated expiration: 2029-01-30

Abstract

The utility model provides a cold tile back of body structure of modified seat formula slide bearing, including the bearing frame body, the center of bearing frame body comprises upper bearing shell and lower axle bush, splice into a round hole from top to bottom upper bearing shell and lower axle bush, the main shaft outside is located to the cover, its characterized in that, lower axle bush comprises interior, outer two-layer tile base welding, constitutes twice semi-ring type intermediate layer space between inlayer tile base and the outer tile base, and the symmetry is equipped with inlet connection hole and water outlet connection hole on the outer tile base, inlet connection hole, water outlet connection hole and semi-ring type intermediate layer space have constituted the inside circulation cooling water route of lower axle bush. The utility model discloses simple structure is reliable, and product low in manufacturing cost is honest and clean, and the cooling water directly reduces the low axle bush temperature, makes upper and lower axle bush temperature rise balanced.

Description

Improved seat type sliding bearing cold tile back structure

Technical Field

The utility model relates to a slide bearing technical field, in particular to cold tile back of body structure of modified seat formula slide bearing.

Background

The horizontal hydraulic generator usually adopts a seat type sliding bearing, and a radial bearing bush of the horizontal hydraulic generator is divided into an upper half and a lower half which are sleeved on a main shaft. Because the horizontal shaft of the unit is arranged, the bearing load of the upper bearing bush is smaller, and the bearing load of the lower bearing bush is larger, the temperature rise of the upper bearing bush is not high in the operation of the unit, but the temperature rise of the lower bearing bush is close to an alarm value. In traditional seat formula slide bearing design, set up one set of oil cooler in the bearing oil tank body, the recirculated cooling water that provides through the equipment outside in the oil cooler reduces the oil temperature to the temperature of radial axle bush is indirectly reduced to the oil temperature. Then, in the horizontal type hydroelectric generating set with large capacity, high load and high rotating speed, the cooling effect of the lower bearing bush is poor, so that the temperature rise of the upper bearing bush and the lower bearing bush is unbalanced, and the safe and stable operation of the generating equipment is influenced.

The traditional technology mostly adopts a 'water internal cooling tile' structure, although the cooling effect is good, the structure is complex, and the manufacturing cost of the product is increased.

Therefore the utility model discloses a cold tile back of body structure of modified seat formula slide bearing adds the cooling water cavity at the back of the tile base of lower bearing shell, take another return circuit of taking in the original oil cooler supply channel of bearing and introduce the cooling water cavity to the pipeline accessory of standard, take the loss on lower bearing shell surface through the recirculated cooling water, direct cooling lower bearing shell forms a "cold tile back of body" structure, moreover, the steam generator is simple in structure and reliable, low in product manufacturing cost is honest, the direct low bearing shell temperature that falls of cooling water, make upper and lower bearing shell temperature rise is balanced.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims to provide a cold tile back of body structure of modified seat formula slide bearing, simple structure is reliable, and product manufacturing low cost is honest and clean, and the cooling water directly reduces the low axle bush temperature, makes upper and lower axle bush temperature rise balanced.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a cold tile back of body structure of modified seat formula slide bearing, includes the bearing frame body, the center of bearing frame body comprises upper bearing shell and lower bearing shell, splice into a round hole about upper bearing shell and lower bearing shell, the main shaft outside is located to the cover, a serial communication port, lower bearing shell comprises inside and outside two-layer tile base welding, constitutes twice semi-ring formula intermediate layer space between inlayer tile base and the outer tile base, and the symmetry is equipped with inlet connection hole and outlet connection hole on the outer tile base, inlet connection hole, outlet connection hole and semi-ring formula intermediate layer space have constituted the inside circulation cooling water route of lower bearing shell.

Further, be equipped with into water interface and water outlet on the lateral wall of bearing frame body, it lies in same one side of bearing frame lateral wall with water outlet to intake interface, be connected with into water high-pressure hose between water inlet connecting hole and the interface of intaking, be connected with out water high-pressure hose between water outlet connecting hole and the water outlet, form the external circulation cooling water route of lower axle bush between water inlet high-pressure hose, the water outlet high-pressure hose and the interface of intaking, going out.

Further, the kneck of intaking is through installing the steel pipe, and the one end of steel pipe is located bearing frame body lateral wall inboard, is connected with an articulated joint through the coupling, the one end of high-pressure hose of intaking is connected to the one end of articulated joint, the other end of high-pressure hose of intaking is connected with the water inlet connecting hole through another articulated joint to make another articulated joint and water inlet connecting hole fixed connection through the screw, the other end of steel pipe is located the outside of bearing frame body lateral wall, is connected with insulating coupling to it is fixed through the locking nut locking, insulating coupling connects into, the water outlet header pipe, water outlet high-pressure hose also adopts above-mentioned structure with being connected between water outlet and the water outlet connecting hole.

Furthermore, the water inlet connecting hole, the water outlet connecting hole, the water inlet interface and the water outlet interface are all 2-G1/2' screw holes.

Furthermore, the water inlet connecting holes and the water outlet connecting holes are symmetrically arranged at an included angle of 30 degrees with the Y axis.

Further, the outer layer tile blank and the inner layer tile blank are both made of steel castings, and the model is ZG 230-450.

Furthermore, the insulating pipe joint is made of epoxy phenolic insulating materials.

The utility model has the advantages that: firstly, the cooling water directly reduces the temperature of the lower bearing bush, so that the temperature rise of the upper bearing bush and the lower bearing bush is balanced. Secondly, the structure is simple and reliable, the manufacturing cost of the product is low, the investment of the first party is not increased, and the safe and stable operation of the power generation equipment is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a sectional view of an improved seat-type sliding bearing cold shoe back structure of the present invention.

Wherein: 1. a bearing housing body; 2. an insulating pipe joint; 3. a steel pipe; 4. locking a nut; 5. a pipe joint; 6. an articulated joint; 7. a screw; 8. inner layer tile blank; 9. an outer layer tile blank; 10. a semi-annular interlayer; 11. A water inlet connecting hole; 12. a water outlet connecting hole; 13. a water inlet high-pressure hose; 14. and (4) a water outlet high-pressure hose.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, an improved seat type sliding bearing cold bush back structure comprises a bearing seat body 1, wherein the center of the bearing seat body 1 is composed of an upper bush and a lower bush, the upper bush and the lower bush are vertically spliced into a round hole, and the round hole is sleeved outside a spindle.

Further, be equipped with into water interface and water outlet on the lateral wall of bearing frame body 1, it is located same one side of bearing frame lateral wall with water inlet and water outlet, this side is convenient for connect the water inlet of power station, goes out the water house steward to the installation of on-the-spot water pipeline has been simplified. And a water inlet high-pressure hose 13 is connected between the water inlet connecting hole 11 and the water inlet interface, a water outlet high-pressure hose 14 is connected between the water outlet connecting hole 12 and the water outlet interface, and an external circulating cooling water path of the lower bearing bush is formed among the water inlet high-pressure hose 13, the water outlet high-pressure hose 14, the water inlet interface and the water outlet interface.

Further, the kneck of intaking is through installing steel pipe 3, and the one end of steel pipe 3 is located bearing frame body 1 lateral wall inboard, is connected with an articulated joint 6 through coupling 5, the one end of the high-pressure hose 13 of intaking is connected to the one end of articulated joint 6, the other end of the high-pressure hose 13 of intaking is connected with the connecting hole 11 of intaking through another articulated joint 6 to make another articulated joint 6 and the connecting hole 11 fixed connection of intaking through screw 7, the other end of steel pipe 3 is located the outside of bearing frame body 1 lateral wall, is connected with insulating coupling 52, and is fixed through the locking of lock nut 4, insulating coupling 52 connects into, goes out the water house steward, the outlet pipe is soft and goes out the water interface and go out the connection between the water connecting hole 12 and also adopt above-mentioned structure. Wherein, be equipped with sealed the pad between articulated joint 6 and screw 7, increase leakproofness.

Furthermore, the water inlet connecting hole 11, the water outlet connecting hole 12, the water inlet interface and the water outlet interface are all 2-G1/2' screw holes.

Furthermore, the water inlet connecting holes 11 and the water outlet connecting holes 12 are symmetrically arranged with an included angle of 30 degrees between the Y axis.

Further, the outer layer tile blank 9 and the inner layer tile blank 8 both adopt steel castings, and the model is ZG 230-450.

Further, the insulating pipe joint 52 is used as a mounting interface of an external water inlet and outlet main pipe, and is made of epoxy phenolic insulating material (No. 3840), so that a shaft current loop is simply and effectively blocked to protect the bearing alloy tile.

The utility model discloses take a return circuit in addition and introduce the cooling water chamber in the original oil cooler supply channel of bearing, take the loss on lower bearing bush surface through the circulative cooling water, direct cooling lower bearing bush, and do not increase the first side investment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a cold tile back of body structure of modified seat formula slide bearing, includes the bearing frame body, the center of bearing frame body comprises upper bearing shell and lower bearing shell, splice into a round hole about upper bearing shell and lower bearing shell, the main shaft outside is located to the cover, a serial communication port, lower bearing shell comprises inside and outside two-layer tile base welding, constitutes twice semi-ring formula intermediate layer space between inlayer tile base and the outer tile base, and the symmetry is equipped with inlet connection hole and outlet connection hole on the outer tile base, inlet connection hole, outlet connection hole and semi-ring formula intermediate layer space have constituted the inside circulation cooling water route of lower bearing shell.

2. The improved seat type sliding bearing cold shoe back structure according to claim 1, wherein a water inlet interface and a water outlet interface are arranged on the side wall of the bearing seat body, the water inlet interface and the water outlet interface are positioned on the same side of the side wall of the bearing seat, a water inlet high-pressure hose is connected between the water inlet connecting hole and the water inlet interface, a water outlet high-pressure hose is connected between the water outlet connecting hole and the water outlet interface, and an external circulating cooling water path of the lower bearing bush is formed among the water inlet high-pressure hose, the water outlet high-pressure hose, the water inlet interface and the water outlet interface.

3. The improved seat type sliding bearing cold shoe back structure according to claim 2, wherein a steel pipe is installed at the water inlet joint, one end of the steel pipe is located on the inner side of the side wall of the bearing seat body, an articulated joint is connected through a pipe joint, one end of the articulated joint is connected with one end of a water inlet high-pressure hose, the other end of the water inlet high-pressure hose is connected with the water inlet connecting hole through another articulated joint, the other articulated joint is fixedly connected with the water inlet connecting hole through a screw, the other end of the steel pipe is located on the outer side of the side wall of the bearing seat body, an insulated pipe joint is connected and locked and fixed through a lock nut, the insulated pipe joint is connected with the water inlet header pipe and the water outlet header pipe, and the connection between the water outlet high-pressure hose and the water.

4. The improved seat type sliding bearing cold tile back structure according to claim 3, wherein the water inlet connecting hole, the water outlet connecting hole and the water inlet interface and the water outlet interface are all 2-G1/2' screw holes.

5. The improved seat type sliding bearing cold shoe back structure according to claim 4, wherein the water inlet connecting hole and the water outlet connecting hole are symmetrically arranged with an included angle of 30 degrees between the Y axis.

6. The improved seat type sliding bearing cold shoe back structure according to claim 5, wherein the outer layer shoe blank and the inner layer shoe blank are both made of cast steel, and the model is ZG 230-450.

7. The improved seat type sliding bearing cold pad back structure according to claim 6, wherein the insulating pipe joint is made of epoxy phenolic insulating material.