Submersible linear motor for high-temperature heavy oil well and sliding guide sleeve of submersible linear motor
The invention discloses a sliding guide sleeve of a submersible linear motor of a high-temperature heavy oil well, which comprises a sliding guide sleeve body, a guide sleeve seat sleeved on the outer side of the sliding guide sleeve body, and a guide sleeve protecting ring sleeved between the guide...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a sliding guide sleeve of a submersible linear motor of a high-temperature heavy oil well, which comprises a sliding guide sleeve body, a guide sleeve seat sleeved on the outer side of the sliding guide sleeve body, and a guide sleeve protecting ring sleeved between the guide sleeve seat and the sliding guide sleeve body, the thermal expansion coefficient of the guide sleeve retaining ring is smaller than that of the guide sleeve seat and larger than that of the sliding guide sleeve body, the elastic modulus of the guide sleeve retaining ring is smaller than that of the sliding guide sleeve body and that of the guide sleeve seat, the guide sleeve seat is in interference fit with the guide sleeve retaining ring, and the guide sleeve retaining ring is in interference fit with the sliding guide sleeve body. The sliding guide sleeve can be suitable for a high-temperature heavy oil well, the situation that the sliding guide sleeve loses fixing and limiting functions in a high-temperature en |
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