CN2837597Y

CN2837597Y - End bracket and seat type sliding bearing and end bracket thereof

Info

Publication number: CN2837597Y
Application number: CN 200520041392
Authority: CN
Inventors: 陈凯
Original assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Current assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Priority date: 2005-05-10
Filing date: 2005-05-10
Publication date: 2006-11-15
Anticipated expiration: 2015-05-10

Abstract

The utility model discloses a sliding bearing of an end cover and seat type and an end cover thereof. The flange surface of the lower semi-part of the original bearing of an end cover type is cancelled, and the upper semi-part of the bearing of an end cover type is connected with a connecting structure at the bottom of the bearing of a seat type. Meanwhile, for adapting the change of the bearing structure, the original end cover which is matched with the bearing of an end cover type is improved, the lower semi-part of the original end cover which is matched with the bearing of an end cover type is changed into a platform used for supporting the sliding bearing of an end cover and seat type, and a novel end cover which can be provided with the bearing of an end cover and seat type is formed. So, the integral arrangement of a motor is compact, is beneficial for the arrangement of the inner space of the motor and is beneficial for the arrangement of the length of a stator coil.

Description

End cover type seat formula sliding bearing and end cap thereof

Technical field

The utility model relates to a kind of field of bearings, especially is assemblied in the sliding bearing of high power motor.

Background technique

The sliding bearing of high power motor generally has two kinds of patterns at present: a. pedestal bearing (see figure 1); B. end bracket type bearing (see figure 2).Pedestal bearing is to be installed on (see figure 3) on the base plate of motor, adjusts during assembling flexibly, and good stability during operation, the load that can bear is big.End bracket type bearing is installed on (see figure 4) on the end cap of motor, and it is little to take up room, easy for installation, compact structure.

When the power of motor greatly to a certain degree the time, stressed all very big when the weight of rotor and operation, stator coil length is also long, and is corresponding, the integrating error value in the motor manufacture process is just bigger.Though as adopt pedestal bearing can solve the problem of bearing capacity, and utilize the adjustment when assembling to solve the big problem of integrating error, when the bearing guard span of rotor is constant, adopt the motor (see figure 3) of pedestal bearing, but regulate necessary size C owing to be furnished with between bearing and the end cap to install, caused bearing axis bigger, limited the stator coil length dimension, be unfavorable for the expansion of power of motor to the A1 size value of stator coil end; Though and adopt end bracket type bearing can arrange the stator coil length that size is bigger because the assembling between end bracket type bearing 1 and the end cap 2, be the dependence bolt strain cooperatively interact send out face blue, bearing 1 is hung on (Fig. 4) on the end cap 2.Not only stability is relatively poor relatively, nor is convenient to axial adjusting, can not well solve bearing capacity and reach the big problem of integrating error greatly.

External fine finishing level height of the same trade does not need frequently to adjust bearing, thus can reach technical requirements with end bracket type bearing, and the fine finishing level of China also compares the end, presses for a kind of new-type bearing that has two kinds of bearing advantages concurrently.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of novel bearing and end cap thereof that the little and pedestal bearing bearing capacity of end bracket type bearing spatial arrangement is big, adjust flexible two-fold advantage that have concurrently.

In order to solve the problems of the technologies described above, the utility model has adopted following structure: with the Lower Half of former end bracket type bearing send out the face cancellation blue, the first half of end bracket type bearing is connected the linkage structure of pedestal bearing bottom, that is: end cover type pedestal bearing (seeing Fig. 6,7).Simultaneously, in order to adapt to the variation of bearing structure, the original end cap (see figure 5) that cooperates with end bracket type bearing is improved, the Lower Half of the end cap that cooperates with end bracket type bearing originally is used for the platform of supports end cap formula seat formula sliding bearing instead, become the novel end cap (seeing Fig. 8,9) that the end cover type pedestal bearing can be installed.

Adopted after the end cover type pedestal bearing and end cap thereof of new structure, the integral arrangement (see figure 10) compactness of motor helps the layout in motor internal space, although the end cover type pedestal bearing is identical with the pedestal bearing stress surface, installation method is more approaching, but helps the layout of stator coil length.Bearing stability is good, and bearing capacity is big.

Description of drawings

Fig. 1 is the plan view of pedestal bearing;

Fig. 2 is the plan view of end bracket type bearing;

Fig. 3 is the plan view of the motor of assembling pedestal bearing;

Fig. 4 is the plan view of the motor of assembling end bracket type bearing;

Fig. 5 is the plan view of the end cap of end bracket type bearing;

Fig. 6 is the plan view of the utility model end cover type seat formula sliding bearing;

Fig. 7 is the left view of the utility model end cover type seat formula sliding bearing;

Fig. 8 is the plan view of the utility model end cover type pedestal bearing with end cap;

Fig. 9 is the left view of the utility model end cover type pedestal bearing with end cap;

Figure 10 is the plan view of the motor of assembling the utility model end cover type seat formula sliding bearing.

Embodiment

The utility model has adopted following structure: the cancellation of sending out face 1 (Fig. 2) blue that former end bracket type bearing is used to install connects the linkage structure 2 of pedestal bearing bottom, that is: end cover type pedestal bearing (seeing Fig. 6,7) with the first half of end bracket type bearing.Simultaneously, in order to adapt to the variation of bearing structure, the original end cap that cooperates with end bracket type bearing 3 (see figure 5)s are improved, the Lower Half of the end cap that cooperates with end bracket type bearing originally is used for the platform 4 of supports end cap formula seat formula sliding bearing instead, become the novel end cap (seeing Fig. 8,9) that the end cover type pedestal bearing can be installed.

Adopted after the end cover type pedestal bearing of new structure, the integral arrangement (see figure 10) compactness of motor, the layout that helps the motor internal space, although the end cover type pedestal bearing is identical with the pedestal bearing stress surface, installation method is more approaching, but do not need the size 5 in the pedestal bearing (see figure 3), help the layout of stator coil length.

The test situation of a tree name our factory adopts the vibration values major part of these high-power asynchronous motors of this technology to concentrate between 1.3 ~ 2.1mm/s.Idol has vibration values than higher, also can once more behind the dynamic balance checking, adjust to substantially in this vibration values scope by rotor, is lower than the reference value of national 2.8mm/s greatly.

Be the four polar system row asynchronous motors of the high H=1000m in center equally, our factory adopts the peak output of the YKS1000-4 serial motors of end bracket type bearing can only reach 12000KW 10KV, and adopt the peak output of the YCH1000-4 serial motors of end cover type pedestal bearing to reach 18000KW 10KV, this shows: after adopting this technical solution, be very beneficial for the layout of the internal structure of high power motor, help doing big power of motor.

Claims

1, a kind of end cover type seat formula sliding bearing comprises the end bracket type bearing first half and pedestal bearing bottom, it is characterized in that, the end bracket type bearing first half is connected in the pedestal bearing bottom.

2, a kind of end cap of end cover type seat formula sliding bearing comprises the end bracket type bearing first half, it is characterized in that, also comprises the platform that is supported under the end cover type seat formula sliding bearing, and this platform is connected with the end bracket type bearing first half.