34results about How to "Sufficient oil" patented technology

A lubricating structure comprises an output gear 22 rotating as a unit with an output shaft 3 of a transmission mechanism, a gear 25 rotating as a unit with a counter shaft 27 and engaged with the gear 22, a gear 60 rotating as a unit with the shaft 27 and disposed spaced from the gear 25 in an axial direction, a bearing 26 and bearing 28b for rotatably supporting the shaft 27 respectively at a gear 25 side and a gear 60 side, a driving gear 65 disposed above the gear 60 and engaged with the gear 60 through an intermediate gear, a case 1a for individually accommodating through a separating wall the bearing 28b, a bearing at an intermediate gear side, and a bearing 67 at a gear 65 side, and feed paths 62,64 formed within the shaft 27 for introducing oil moved into an accommodating portion 70 of the gear 28b in the case 1a to a gear 25 side thereby to supply the oil to a predetermined portion. Furthermore, a void groove 76 is formed in the separating wall 69 between the accommodating portion 70 and an accommodating portion at an intermediate gear side.

The invention relates to a lubricating structure of a rotating spline in a gearbox. The lubricating structure comprises a spline shaft, a spline sleeve and a pressing plate, the spline shaft and the spline sleeve are matched through a spline pair, an oil discharging hole is arranged on the pressing plate which is fixed at a free end of the spline shaft and abutted against one end of the spline sleeve, a retaining shoulder is arranged at a spline end, opposite to the free end, of the spline shaft and abutted against the other end of the spline sleeve, a plurality of circumferentially-distributed radial oil collection grooves are arranged between the retaining shoulder and the spline sleeve, an annular inclined-bottom oil cavity is further arranged at the spline end, opposite to the free end, of the spline shaft, one end of the annular inclined-bottom oil cavity is communicated with the circumferentially-distributed radial oil collection grooves while the other end of the same is communicated with a tooth groove of the spline pair, an annular oil collection cavity is arranged at the free end of the spline shaft and jointly formed by surrounding of the spline shaft, the pressing plate and the spline sleeve, and one end of the annular oil collection cavity is communicated with the tooth groove of the spline gear while the other end of the same is communicated with the oil discharging hole of the pressing plate. The lubricating structure is simple in structure, sufficient in spline lubricating and capable of improving reliability and economy of the spline.

The present invention provides an oil equalizing circuit for a refrigeration system provided with a plurality of compression mechanisms, the oil equalizing circuit being capable of supplying sufficient oil to the compressors that are running during partial load operation. The refrigeration system compression mechanism is provided with the following: first, second, and third compressors; a refrigerant intake main pipe; first, second, and third intake branch pipes connected to the intake sides of the compressors; first, second, and third oil separators connected to the discharge sides of the compressors; and first, second, and third oil return pipes provided on the oil separators. The first oil return pipe is configured such that oil is delivered to the refrigerant intake main pipe due to gravity when only the first compressor is running. The second oil return pipe is configured such that oil is delivered to the refrigerant intake main pipe due to gravity when only the first and second compressors are running.

The invention relates to a crane having at least one apparatus for determining the effective counterweight of said crane comprising at least one receiver for receiving at least one counterweight body; at least one coupling that is configured to pivotably couple the receiver with the further structure of the crane; and at least one abutment that is configured to limit the pivot range of the receiver.

The invention discloses a beam-pumping unit, which comprises a bracket, a reducer, a crank, a connecting rod, a beam, a horse head, constant-temperature heaters, a balance arm, a balance block and a supporting rod, wherein the beam is movably connected to the bracket; the horse head is fixedly arranged on one end of the beam; the balance arm is movably connected to the other end of the beam; the balance block is fixedly arranged on the balance arm; one end of the support rod is movably connected to the bracket; the other end of the supporting rod is movably connected to the balance arm; the reducer is connected with the crank; the connecting rod is movably connected between the crank and the beam; the constant-temperature heaters are fixedly arranged in the tank body of the reducer for heating lubricating oil. The beam-pumping unit has the two technical advantages that the peak value current of a motor can be reduced when the horse head moves to an upper stop, the peak value current of a motor and the valve current torque of the reducer are reduced when the horse head moves to a lower stop, and the lubricating oil in the reducer can be prevented from icing or becoming a thick state under a low-temperature state.

The invention relates to a method for producing Maduro wrappers by high-temperature and high-humidity fermentation and the Maduro wrappers made thereof. The above-mentioned production method comprises: loosening selected tobacco leaves, and then immersing the petioles of the loosened tobacco leaves in warm water The handle is taken out, and the tobacco leaves after soaking the handle are moistened to increase the moisture content of the tobacco leaves to 20-30%, then the tobacco leaves are sealed in a self-sealing bag, equilibrated for a period of time, taken out, and then the tobacco leaves are fully loosened and then soaked in warm water to remove The surface of the tobacco leaves is exposed to water, then the tobacco leaves are equilibrated for a period of time, the tobacco leaves are flattened one by one, and then the flattened tobacco leaves are fermented. The wrapper produced by the invention is dark brown, has uniform color, sufficient oil content and luster, and meets the demands of different products and markets for the Maduro wrapper.

The invention discloses a method and device for controlling the frequency of a compressor. The method includes: comparing the detected inlet pipe temperature and outlet pipe temperature of the gas-liquid separator and the evaporation temperature of the system where the compressor is located; Determine the current liquid storage state of the gas-liquid separator, and control the frequency of the compressor according to the current liquid storage state. Through the present invention, the temperature of the inlet and outlet pipes of the gas-liquid separator and the evaporation temperature of the system are used to determine the current liquid storage state of the gas-liquid separator, and then control the frequency of the electronic expansion valve and compressor according to the current liquid storage state, so that the gas-liquid The oil-liquid mixture in the separator is transferred to solve the problem that the gas-liquid separator cannot return oil in time when there is a lot of liquid, so as to ensure that the compressor oil is sufficient, and the refrigerant returns to the high-pressure side in time to ensure the heating effect.

The invention discloses an automatically adjustable variable speed oil pump, which comprises a rotating shaft (10) of an oil pump main body (1) and a power output shaft (3) of an engine connected through a transmission mechanism; the transmission mechanism includes four single-cone rollers (4 ) and belt (7), four single-cone rollers (4) are two pairs, and the conical surfaces of every pair of two single-cone rollers (4) are opposite and coaxial; wherein a pair of single-cone rollers ( 4) It is limited and slidingly matched with the rotating shaft (10) in the circumferential direction, and the distance between the two single-tapered rollers (4) is adjustable; the other pair of single-tapered rollers (4) and the power output shaft (3) are circumferentially Limiting and sliding fit, the distance between the two single-cone rollers (4) is adjustable; the belt (7) is wrapped around the two pairs of single-cone rollers (4). After adopting the above structure, unnecessary energy loss can be reduced, hydraulic power and mechanical power can be reduced, thereby improving the working efficiency of the engine.

The invention discloses an engine oil replenishment system and an oil replenishment method thereof, belonging to the technical field of engines. The system includes an oil pan, an auxiliary engine oil tank, and an oil supply chamber set on the upper part of the auxiliary engine oil tank; the oil pan and the oil supply chamber are connected through an oil supply pipe, and a first check valve is arranged on the oil supply pipe; the oil supply chamber and the auxiliary machine The oil tank is connected through an oil inlet pipe provided with an oil pump; wherein, the oil pump pumps oil from the auxiliary oil tank to the oil charge chamber according to the preset operation mode; when the oil level in the oil charge chamber is higher than the oil level in the oil pan, the first check valve When it is opened, the oil supply chamber supplies oil to the oil pan. By arranging the first one-way valve on the oil supply pipe, it can not only ensure that when the oil transport unit is pre-installed in the oil pan, the lubricating oil in the oil pan will not flow into the oil supply chamber or the auxiliary oil tank. Moreover, the high-pressure gas generated during the operation of the engine will not reach the auxiliary oil tank through the oil supply pipe, and will emerge from the oil inlet of the auxiliary oil tank, and white gas will not appear in the oil inlet.

The invention discloses a method for controlling oil return of a multi-connection system. The multi-connection system includes an indoor unit and a plurality of outdoor units, and the plurality of outdoor units are respectively connected to the indoor unit; the method includes: judging the multi-connection Whether there is compressor oil shortage in the system; if so, enter the oil return control: obtain the oil level of each compressor; adjust the oil return frequency of each compressor according to the system load rate and the oil level of each compressor; It affects the normal operation of the system, and realizes directional and precise oil return to ensure sufficient oil in each compressor, improves the reliability of oil return, and improves the reliability of system operation.

The invention provides a lubricating system of an engine. The lubricating system of the engine comprises a main oil way arranged on an engine cylinder body and an auxiliary oil way communicated with the main oil way. The auxiliary oil way comprises a cylinder cover with an opening facing the engine, a vertical oil way used for lubricating the cylinder cover and a transverse oil way communicated between the main oil way and the vertical oil way, and the transverse oil way is arranged between two adjacent cylinders of the engine. According to the lubricating system of the engine, the vertical oil way and the transverse oil way are arranged in the middle of the engine, a conveying line of lubricating oil is shortened, pressure loss in the conveying process of the lubricating oil is reduced, and therefore the conveying efficiency of the lubricating oil is improved. Meanwhile, the requirements for the lubricating oil of an overhead camshaft of the engine are met. In addition, the requirement for lubricating of a crank shaft, a connection rod and an auxiliary part on the lateral face of the cylinder body is simultaneously met, the design requirements for other auxiliary oil ways are reduced, the conveying line of the lubricating oil is simplified, the manufacturing process is relatively simple, and the machining cost is reduced. The invention further provides the engine.

The invention relates to a lubricating structure of a rotating spline in a gearbox. The lubricating structure comprises a spline shaft, a spline sleeve and a pressing plate, the spline shaft and the spline sleeve are matched through a spline pair, an oil discharging hole is arranged on the pressing plate which is fixed at a free end of the spline shaft and abutted against one end of the spline sleeve, a retaining shoulder is arranged at a spline end, opposite to the free end, of the spline shaft and abutted against the other end of the spline sleeve, a plurality of circumferentially-distributed radial oil collection grooves are arranged between the retaining shoulder and the spline sleeve, an annular inclined-bottom oil cavity is further arranged at the spline end, opposite to the free end, of the spline shaft, one end of the annular inclined-bottom oil cavity is communicated with the circumferentially-distributed radial oil collection grooves while the other end of the same is communicated with a tooth groove of the spline pair, an annular oil collection cavity is arranged at the free end of the spline shaft and jointly formed by surrounding of the spline shaft, the pressing plate and the spline sleeve, and one end of the annular oil collection cavity is communicated with the tooth groove of the spline gear while the other end of the same is communicated with the oil discharging hole of the pressing plate. The lubricating structure is simple in structure, sufficient in spline lubricating and capable of improving reliability and economy of the spline.