阅读说明：本技术 一种提升泵油效果的螺旋油泵及全封闭滚动转子式压缩机 (Spiral oil pump for improving oil pumping effect and totally-enclosed rolling rotor type compressor ) 是由 戴竟雄 方泽云 王骏刚 李华军 王永昌 于 2020-05-18 设计创作，主要内容包括：本发明涉及压缩机技术领域,具体是一种提升泵油效果的螺旋油泵,其特征是：包括固定帽和螺旋棒,所述固定帽的帽顶朝下,帽檐朝上,帽檐上设有安装孔,帽顶面上装有所述螺旋棒,螺旋棒竖直向上延伸,螺旋棒的外壁面设有至少一条螺旋槽,帽顶面位于螺旋棒周边设有至少一个入油孔；本发明提高了泵油效果。(The invention relates to the technical field of compressors, in particular to a spiral oil pump for improving the oil pumping effect, which is characterized in that: the spiral rod fixing device comprises a fixing cap and a spiral rod, wherein the top of the fixing cap faces downwards, the brim faces upwards, a mounting hole is formed in the brim, the spiral rod is mounted on the top face of the cap, the spiral rod extends vertically upwards, at least one spiral groove is formed in the outer wall face of the spiral rod, and at least one oil inlet hole is formed in the periphery of the spiral rod on the top face of the cap; the invention improves the oil pumping effect.)

1. The utility model provides a spiral oil pump of promotion pump oil effect, characterized by: including locking cap and hob, the crown of locking cap is down, and the brim of a hat is up, is equipped with the mounting hole on the brim of a hat, is equipped with on the crown the hob, the vertical upwards extension of hob, the outer wall of hob is equipped with at least one helicla flute, and the crown is located the hob periphery and is equipped with at least one oil inlet.

2. The screw oil pump for improving oil pumping effect according to claim 1, wherein: the inner surface of the top of the fixed cap is provided with a sinking platform with the height of 1-2mm, and the sinking platform is used as an oil storage pool for storing oil.

3. The screw oil pump for improving oil pumping effect as claimed in claim 2, wherein: the region from the bottom surface of the spiral rod to the sinking platform surface is of a polished rod structure, and the length of the polished rod is 1-2 mm.

4. The screw oil pump for improving oil pumping effect according to claim 1, wherein: the cap peak is provided with at least two mounting holes, one of which is a waist-shaped hole and is used for adjusting the coaxiality of the spiral rod and the crankshaft hole, and the fixing cap is fixed in the compressor by mounting screws in the mounting holes.

5. The screw oil pump for improving oil pumping effect according to claim 1, wherein: the fixing cap is fixed in the compressor through a metal card or a metal wire.

6. The screw oil pump for improving oil pumping effect according to claim 1, wherein: 1-10 spiral grooves are uniformly distributed on the outer wall of the spiral rod, and the pitch of each spiral groove is 25-80 mm.

7. The screw oil pump for improving oil pumping effect according to claim 1, wherein: the spiral rod and the fixing cap are integrally formed or assembled in a split mode.

8. The screw oil pump for improving oil pumping effect according to claim 7, wherein: the spiral rod and the fixing cap are assembled through welding or threaded connection or a hot-sleeving or cold-pressing process.

9. The utility model provides a totally closed rolling rotor formula compressor, includes casing, motor, lower bearing cap, cylinder, bent axle, is equipped with the through-hole on the lower bearing cap, and the bent axle bottom inserts in the through-hole, characterized by: the screw oil pump of any one of claims 1 to 8, further comprising a fixing cap installed at a bottom of the lower bearing cap, the screw rod being inserted upward into a bottom hole of the crankshaft, the spiral groove being formed in a direction opposite to a rotation direction of the crankshaft.

10. A totally enclosed rolling rotor compressor as claimed in claim 9, wherein: the crankshaft bottom hole is internally provided with a shaft sleeve, and the spiral rod is arranged in the shaft sleeve.

Technical Field

The invention relates to the technical field of compressors, in particular to a spiral oil pump for improving the oil pumping effect.

Background

In the operation process of the compressor, the good oil pumping effect can not only reduce the oil injection amount and reduce the cost, but also play an important role in cooling, lubricating, sealing and the like. Most refrigeration compressors on the current market, pump oil increase on the bent axle hole mostly and inhale oil pipe and inhale the oil spacer, and pump oil ability is limited, has great quality hidden danger to compressor lubrication, sealed, cooling, easily causes the compressor card to die, and the oil mass cost is higher. Particularly, the inverter compressor requires sufficient oil quantity from 900 revolutions per minute to 4200 revolutions per minute from low speed, and the insufficient oil pumping quantity at low speed causes hidden troubles to the service life and the quality of the compressor.

Disclosure of Invention

The invention aims to improve the oil pumping effect of a compressor and provides a spiral oil pump and a compressor with the improved oil pumping effect.

The specific scheme of the invention is as follows: the utility model provides a spiral oil pump of promotion pump oil effect, includes locking cap and hob, the crown of locking cap is equipped with the mounting hole down on the brim of a hat up, the crown face is equipped with the hob, the vertical upwards extension of hob, the outer wall of hob is equipped with an at least helicla flute, and the crown face is located the hob periphery and is equipped with at least one oil inlet hole.

The inner surface of the top of the fixing cap is provided with a sinking platform with the height of 1-2mm, and the sinking platform is used as an oil storage pool for storing oil.

The region from the bottom surface of the spiral rod to the sinking platform surface is of a polished rod structure, and the length of the polished rod is 1-2 mm.

At least two mounting holes are formed in the cap peak, wherein one mounting hole is a kidney-shaped hole and is used for adjusting the coaxiality of the spiral rod and the crankshaft hole.

The outer wall of the spiral rod is uniformly provided with 1-10 spiral grooves, and the pitch of each spiral groove is 25-80 mm.

The spiral rod and the fixing cap are integrally formed or assembled in a split mode.

The spiral rod and the fixing cap are assembled through welding, threaded connection, hot sleeving or cold pressing.

The fixing cap of the present invention may be fixed in the compressor by a metal clip or a wire.

The invention also provides a totally-enclosed rolling rotor compressor, which comprises a shell, a motor, a lower bearing cover, a cylinder, a crankshaft and the spiral oil pump, wherein the lower bearing cover is provided with a through hole, the bottom end of the crankshaft is inserted into the through hole, the fixed cap is arranged at the bottom of the lower bearing cover, the spiral rod is upwards inserted into the bottom hole of the crankshaft, and the rotation direction of the spiral groove is opposite to the rotation direction of the crankshaft.

A shaft sleeve is arranged in a bottom hole of the crankshaft, and the spiral rod is arranged in the shaft sleeve.

The working principle of the invention is as follows: the screw is arranged in a cap peak mounting hole of the fixing cap, the fixing cap is fixed on a lower bearing cover of the compressor through the screw, the spiral rod is inserted into an oil hole of the crankshaft, the position of the spiral rod is adjusted through the waist-shaped hole to adjust the coaxiality of the spiral rod and the crankshaft, the gap between the spiral rod and the inner wall of the crankshaft is ensured, oil enters the fixing cap from an oil inlet hole of the fixing cap, when the compressor runs, the crankshaft rotates, the spiral rod and the lower bearing cover are fixed, and the oil rises along a spiral groove of the spiral rod under the centrifugal action and is pumped above the crankshaft and to each kinematic pair; a certain amount of oil is stored in the oil storage pool, so that the instantly required oil quantity of the compressor is met, and the instant abrasion caused by starting is avoided.

Compared with the prior art, the invention has the following advantages: 1. the oil pumping effect is improved, and enough oil can be pumped out at low rotating speed; 2. the oil storage pool is arranged, so that the compressor can pump oil quickly at the moment of starting, abrasion during starting is avoided, and the service life is prolonged; 3. the bottom end of the spiral rod is provided with a polished rod with the diameter of 1-2mm, so that noise caused by oil stirring when the compressor operates is avoided.

Drawings

FIG. 1 is a perspective view of the screw oil pump of the present invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a view B-B of FIG. 2;

FIG. 4 is a schematic view a of the state in which the screw oil pump of the present invention is installed in the crankshaft;

FIG. 5 is a schematic view b of the state in which the screw oil pump of the present invention is installed in the crankshaft;

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a view A-A of FIG. 6;

FIG. 8 is a schematic structural diagram of a fifth embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a sixth embodiment of the present invention;

in the figure: 1-brim, 2-crown, 21-oil inlet hole, 22-oil storage pool, 23-mounting hole, 3-spiral rod, 4-crankshaft, 5-lower bearing cover, 6-shaft sleeve and 7-steel wire.

Detailed Description