TWI553228B - Liquid pressurized pump output shaft lubrication structure - Google Patents

Description

Liquid pressurized pump output shaft lubrication structure

The invention relates to a liquid pressure-loading pump output shaft lubrication structure which can rotate the rotating sleeve on the output shaft and maintain good lubrication for a long time, and has the output shaft and the rotating sleeve to reduce wear and prolong the service life.

According to the nebulizer device used for air-conditioning or horticultural purposes, it is generally necessary to pressurize the liquid in order to obtain the desired spray effect when the liquid is ejected through the spray head, and the liquid is pressurized, usually by using liquid pressure to help Pulai is executed. Conventional centrifugal vane type liquid pump is mainly based on infusion (head). Because the hydraulic pressure is not high, it can not obtain good spray effect on the nebulizer device. The conventional scroll type liquid pressure pump has good liquid. Supercharging effect, but the precision requirements of the scroll machine assembly are very high. As the nebulizer device is positioned on the market at a low unit cost, there is a problem of economical disadvantage; the crankshaft plunger is pressurized. The pump, although it can also make the liquid get a good pressure, however, it pushes the plunger through the motor-driven crankshaft to generate the pressure of the liquid, but because of the interference of each crank movement on the crankshaft, this It will make the axial length of the crankshaft longer, and the required mechanical movement space is large. It is even necessary to open the liquid pressurizing part and the power machinery part. It is more consumable, and the overall volume is large, which is unfavorable for installation and installation. Patent No. I394893 "Beneng type liquid pressure pump" patent case was invented before the application (EU certificate No. 2405137, US certificate No. 8333572, Japanese certificate No. 3170418) China's new type 201 020263943.0), is an eccentric shaft type plunger liquid pressure pump, which is an eccentric shaft that interlocks the plunger to pressurize the liquid in the chamber. The body has the advantage of being miniaturized, but the eccentric portion of the eccentric shaft In the action of driving the plunger, even if the eccentric portion is provided with a pushing reel, the driving of the plunger end surface by the pressing rotating wheel that allows rotation can reduce or reduce the eccentric portion and the end surface of the plunger. Frictional resistance or wear, but it will still be poorly lubricated due to the rotation between the surface of the eccentric portion and the pressing wheel. There is a problem that the eccentric shaft and the pressing wheel are worn too fast, especially for working pressures above 1000Psi for a long time. At this time, this phenomenon is more intensified and obvious; the reason is that the eccentric shaft is generally driven by a four-pole motor (without a speed reduction mechanism) at a rotational speed of 1720 to 1740 RPM, although both the eccentric portion and the push runner are immersed in lubricating oil. Working in the liquid, only the speed of the two turns is equal to the speed of the eccentric shaft, and the centrifugal oil movement that occurs when the eccentric portion and the push wheel rotate at high speed, in addition to causing the rapid loss of the lubricating oil on the surface of the eccentric portion, the high speed return The eccentric portion and the pushing wheel together remove the action of the lubricating oil penetrating into the surface of the eccentric portion, and the lost lubricating oil is not replenished before stopping the turning, so that there is a problem of poor lubrication, if it is eccentric During the high-speed swinging operation, the lost lubricating oil can be replenished at any time, which is bound to overcome the above-mentioned defects, prolong the service life of the eccentric shaft and or the pushing wheel, even when the working pressure reaches 2600 Psi (high pressure). , can still maintain the durability of the eccentric shaft and the push wheel.

The main object of the present invention is to provide a liquid pressurized pump output shaft lubrication structure, which is a pump, including a pump body, a plurality of plunger cap sets, a plurality of pillar plugs, and a power output shaft; the pump body, The utility model has a round core hole filled with lubricating oil as a mechanical chamber, wherein the radial core of the round core hole is uniformly arranged with a plurality of fixing holes, and each of the fixing holes is provided with an inlet and outlet port respectively in the radial direction. Each of the inlet and outlet ports is in communication with a check valve group, and each check valve The inflow end and the liquid discharge end of the group are respectively connected with a liquid inlet hole and a liquid outlet hole, so that the inlet and outlet ports can be stopped by the liquid inlet of the check valve group, The liquid inlet hole is connected to the external liquid; each of the plunger cap groups is respectively disposed on the fixing hole of the pump body by a cap body, and the cap body has a liquid pressurizing chamber inside, and the liquid is pressurized One end of the chamber is radially open, and at least one through hole is communicated with the inlet and outlet ports; each plunger is respectively disposed in a liquid pressure chamber of the plunger cap group, and one end thereof extends into the pump body The output shaft is locked by a bottom cover and an inner cover at both ends of the core hole of the pump body, and the sealing group is disposed in the core hole, and has a power output end and a main shaft The output end extends from the outside of the bottom cover to a motor, and the motor can drive the main shaft to rotate in the core hole. The first end of the main body is formed with a first eccentric portion. The first eccentric portion is provided with a rotating wheel that abuts against one end of the plunger, and the first eccentric portion is The swirling action in the core hole, through the eccentric force of the rotating wheel, sequentially pushes each plunger into the liquid pressurizing chamber to be displaced, so that the liquid entering the liquid pressurizing chamber can be pressurized by the plunger. Discharged from the inlet and outlet, through the liquid discharge of the check valve group, and then the pressurized liquid is used to receive the pressurized liquid; wherein the center of the core of the pump body is radially displaced The fixing hole is provided with an assembly hole, and the output shaft is assembled in the core hole by a bottom cover and an inner cover, and the main shaft body forms a second eccentric portion with respect to the assembly hole, and the output shaft is inside The assembly on the cover end is further disposed inside the main shaft body, and an oil supply deep hole is defined in the axial direction. The inner cover defines an oil passage hole opposite to the oil supply deep hole, and the through hole is externally and is covered by a cover. Closed to form a fuel supply chamber, one end of the oil supply chamber is connected to a oil pipe by a joint, and the other end is communicated with the deep hole of the oil supply through the oil passage hole, the radial direction of the oil supply deep hole, Having at least one oil hole penetrating the surface of the first eccentric portion with respect to the first eccentric portion Help should the pump body on the assembly line the hole with a feed oil, the oil feed, is assembled at the aperture end of the bore, seal The closed end is provided with an oil stop check valve, and the outer end of the oil discharge check valve is connected with the oil pipe by a pipe joint, and an oil pressurization chamber is formed inside, and the oil is pressurized indoors. a telescopic piston is provided which is pushed by a compression spring, and the telescopic piston has an oil inlet check valve portion which is allowed to slide up and down in the oil pressure chamber, and one end of the oil inlet check valve portion faces the circle A push tube abutting against the second eccentric portion of the output shaft extends in the core hole, one end of the push tube extends in the core hole, and more than one is provided to make the oil pressurizing chamber An oil suction hole that can communicate with the core hole; when the output shaft is driven by the motor, each of the plungers is driven by the rotating wheel on the first eccentric portion to reciprocate in the liquid pressure chamber of the plunger cap group to pressurize the liquid When the indoor liquid is pressurized and the pressurized liquid is connected from the liquid outlet end, the telescopic piston of the oil feeder is supported by the compression spring, and the end of the pressing tube is always pressed against the second eccentric portion of the output shaft. The effect of intermittent pressure pushing causes the telescopic piston to follow the rotation of the second eccentric portion. The liquid pressurizing chamber generates a reciprocating motion of up-and-down displacement, and when the telescopic piston is displaced to the oil pressurized outdoor, the oil pressurizing chamber forms a negative pressure, the valve of the oil-injecting check valve is opened, and the lubricating oil in the round core hole is sucked from the oil-absorbing hole. When it is sucked into the oil pressurization chamber, and when the telescopic piston is displaced into the oil pressurization chamber, the oil pressurization chamber forms a positive pressure, and the oil is pressurized by the telescopic piston to push the valve of the oil check valve, along the valve The oil pipe output is injected into the oil supply chamber inside the outer cover to make the oil supply deep hole inside the output shaft, and the pressurized oil can be obtained from the oil supply chamber end, and the surface of the first eccentric portion is forced from the oil outlet hole. Release the lubricating oil; the overall structure, the first eccentric portion of the output shaft acts as the maximum load on the liquid pressurizing work, and can directly push and contract the oil feeder by a second eccentric portion by the power of the output shaft itself The piston actuates, sucks the lubricating oil in the core hole, and pushes it into the deep hole of the oil supply inside the output shaft, forcibly releases the oil outlet from the surface of the first eccentric portion for cyclic replenishment, and makes the contact plunger The rotation of the rotating wheel on the first eccentric portion, Long enough to maintain a good lubrication, the effective life of the enlargement and the output shaft or rotating wheel.

A second object of the present invention is to provide a liquid pressurized pump output shaft lubrication structure, wherein an inner oil supply deep hole of the output shaft is radially provided with a secondary oil outlet hole relative to the first eccentric portion, and the first eccentric portion The surface is further provided with a concave ring groove connected to the outlet of the oil outlet hole; the lubricating oil forcedly released from the oil outlet hole can flow along the concave ring groove to increase the oil loss on the surface of the first eccentric portion. The speed is replenished and the rotation of the rotating wheel set on the first eccentric portion is fully lubricated.

A further object of the present invention is to provide a liquid pressure pump output shaft lubrication structure, wherein the outer cover is closed outside the oil passage hole of the inner cover to form an oil supply chamber, the oil supply chamber and the oil supply An oil filter mesh is also arranged between the through holes; the iron scrap impurities contained in the lubricating oil in the round core hole can be sucked into the oil in the round core hole in the oil feeder, and the cyclic pressure push is pushed back from the oil outlet hole. In the process of the inner core hole, the impurities of the oil filter are filtered to achieve the effect of purifying the oil in the lubricating oil.

Another object of the present invention is to provide a liquid pressure pump output shaft lubrication structure, wherein the oil discharge check valve of the oil feeder has a valve seat, and the valve seat is set to a nut shape, and The threaded portion is screwed into the threaded portion of the assembly hole, and a valve chamber is formed therein. The valve chamber is provided with an inner screw hole to provide the pipe joint connection, and the other end has a connection with the oil pressurizing chamber. a valve port, and a valve spring is further provided with a force spring to push a ball to close the valve port; when the telescopic piston is pushed by the second eccentric portion of the output shaft to the oil pressure chamber for contraction displacement, the oil The positive pressure generated by the pressurization of the hydraulic fluid in the liquid pressurized chamber is such that the ball can be moved away from the valve port by the oil pressure to form a valve opening action, causing the pressurized oil to be input from the pipe joint end; When the piston is pushed back to the oil pressurized chamber by the compression spring to extend the displacement, the valve can be sealed by the ball to achieve the anti-reverse effect of the oil flowing back to the oil pressurizing chamber at the pipe joint end.

Another object of the present invention is to provide a liquid pressure pump output shaft lubrication structure, wherein the telescopic piston of the oil feeder has an oil inlet check valve portion, and a valve chamber is formed in the oil inlet check valve portion. One end of the valve chamber is connected to the tube hole of the pressing tube, and communicates with the core hole through the oil suction hole, and the other end is fixed with a support member for supporting a force spring to push a ball to close the hole of the tube hole. a port, and a through hole is formed in the support member, so that the valve chamber communicates with the oil pressurization chamber; when the compression spring elastically pushes the telescopic piston to the oil pressurizing chamber for extension displacement, the oil is pressurized The negative pressure formed by the upward movement of the oil returning valve part causes the ball to be sucked by the negative pressure to the valve opening of the pipe hole to form a valve opening action, so that the lubricating oil in the round core hole can be sucked into the oil by the oil suction hole. The liquid pressurizing chamber is filled; otherwise, when the second eccentric portion of the output shaft pushes the telescopic piston into the oil pressurized chamber for contraction displacement, the nozzle of the tube hole can be sealed by the ball to reach the oil pressurized chamber. The anti-reverse effect of the oil flowing back to the core hole.

A second object of the present invention is to provide a liquid pressure pump output shaft lubrication structure, wherein the oil discharge check valve of the oil feeder is closed and fixed at the orifice end of the assembly hole, and the oil discharge is reversed. The inner end of the valve is further provided with a storage tube, and the oil pressurizing chamber is formed inside the storage tube, and the compression spring and the telescopic piston are accommodated together, and the pressing tube of the telescopic piston is accommodated by the storage tube One end of the tube extends into the core hole to form abutting engagement with the second eccentric portion of the output shaft; the compression spring and the telescopic piston are combined together on the oil discharge check valve by the receiving tube to fix the assembly hole It is convenient to complete the installation or disassembly of the oil feeder.

A second object of the present invention is to provide a liquid pressure pump output shaft lubrication structure, wherein the oil discharge check valve of the oil feeder is closed and fixed at the orifice end of the assembly hole, and the oil discharge is reversed. An oil pressurizing chamber formed at the inner end of the valve is opposite to the telescopic piston, and is provided with a first sliding sleeve for providing a sliding material for sliding the oil inlet check valve portion, and a grinding device for providing sliding of the pressing tube material The second sliding sleeve is provided with the grinding property of the first and second sliding sleeves, so that the telescopic piston can be telescopically slid in the oil pressurized chamber, thereby reducing frictional resistance or wear.

A second object of the present invention is to provide a liquid pressurized pump output shaft lubrication structure, wherein a joint is provided at one end of the oil supply chamber of the outer cover, and a tube is disposed at an outer end of the oil discharge check valve of the oil feed device. The connector is connected with a tubing, the other end of the tubing is connected to one end of a radiator, and the other end of the radiator is connected to the joint by an oil pipe; when the oil feeder pressurizes the lubricating oil in the core hole When transporting to the fuel supply chamber end, the heat generated by the heat sink is dissipated by the lubricating oil, and the operating temperature generated by the output shaft in the core hole can be easily obtained by using the circulating oil in and out of the round core hole. heat radiation.

10‧‧‧Pump ontology

11‧‧‧ round core hole

12‧‧‧Fixed holes

13‧‧‧Inlet and outlet

14‧‧‧Check valve group

15‧‧‧Inlet hole

16‧‧‧liquid outlet

17‧‧‧Assembled holes

20‧‧‧Plunger Cap

21‧‧‧Cap

22‧‧‧Plunger stop glue ring

23‧‧‧Liquid pressurized chamber

24‧‧‧through hole

30‧‧‧Plunger

40‧‧‧Output shaft

41‧‧‧Extension

42‧‧‧ spindle body

43‧‧‧First eccentric

44‧‧‧Rotating wheel

45‧‧‧Second eccentric

46‧‧‧ oil supply deep hole

47‧‧‧ oil hole

48‧‧‧ concave ring groove

50‧‧‧ bottom cover

51‧‧‧ bearing

52‧‧‧ oil seal

60‧‧‧ inner cover

61‧‧‧ bearing

62‧‧‧through oil hole

70‧‧‧ Cover

71‧‧‧ Oil supply room

72‧‧‧Connectors

73‧‧‧Filter oil net

80, 80A, 80B‧‧‧ oil pipes

81‧‧‧heatsink

90‧‧‧ oil feeder

91‧‧‧Oil stop valve

910‧‧‧ valve seat

911‧‧‧ valve room

912‧‧‧Neutral hole

913‧‧‧ valve port

914‧‧‧tension spring

915‧‧‧balls

92‧‧‧ pipe joint

93‧‧‧ Oil pressurization chamber

94‧‧‧Compressed spring

95‧‧‧ Telescopic piston

96‧‧‧Injection check valve

960‧‧‧Valves

961‧‧‧Support

962‧‧‧tension spring

963‧‧‧ balls

964‧‧‧Perforation

97‧‧‧Pushing tube

970‧‧‧ tube hole

98‧‧‧ Oil suction hole

99‧‧‧ 收纳 tube

990‧‧‧First Sleeve

991‧‧‧Second Sleeve

Figure 1 is an exploded perspective view of the structure of the present invention

Figure 2 is an enlarged schematic view of the portion of Figure 1A

3 is a schematic cross-sectional structural view of a pump body according to the present invention;

Figure 4 is a schematic longitudinal sectional view of the body of the pump of the present invention

Figure 5 is an exploded perspective view of the oil feeder structure of the present invention

Figure 6 is a schematic view showing the state of the oil feeder of the present invention when sucking oil

Figure 7 is a schematic view showing the state of the oil feeder of the present invention when oil is fed.

Figure 8 is a schematic view showing another embodiment of the oil feeder structure of the present invention

Figure 9 is a view showing an embodiment of the heat sink of the present invention.

A liquid pressurized pump output shaft lubrication structure is a pump, as shown in Figure 1, 2 3, 4, 5, comprising a pump body 10, a plurality of plunger cap sets 20, a plurality of strut plugs 30 and an output shaft 40; the pump body 10 has a circle filled with lubricating oil as a mechanical chamber a plurality of fixing holes 12 are arranged in the radial direction of the core hole 11 in a radial direction, and each of the fixing holes 12 is respectively provided with an inlet and outlet port 13 in the radial direction, and each inlet and outlet port 13 is Each of the check valve groups 14 is in communication with a check valve group 14 , and the liquid feed stop end and the liquid discharge check end of the check valve group 14 are respectively connected to a liquid inlet hole 15 and an liquid outlet hole 16 . The inlet and outlet port 13 can be connected to the external liquid through the liquid inlet of the check valve group 14; the plunger caps 20 are respectively assembled by a cap 21 On the fixing hole 12 of the pump body 10, the cap body 21 has a plurality of plunger retaining rubber rings 22 therein to form a liquid pressurizing chamber 23, and one end of the liquid pressurizing chamber 23 is radially opened. At least one through hole 24 communicates with the inlet and outlet port 13; each of the plungers 30 is respectively disposed in the liquid pressurizing chamber 23 of the plunger cap set 20, and one end thereof extends into the pump body 10 The output shaft 40 is locked by a bottom cover 50 and an inner cover 60 at both ends of the core hole 11 of the pump body 10, and is sealed with the bearing 51 and the oil seal 52. The core hole 11 has a power output end 41 and a main shaft body 42. The output end 41 extends from the outside of the bottom cover 50 to a motor (not shown). The spindle body 42 can be driven by the motor. A first eccentric portion 43 is formed on the main shaft body 42 opposite to the end of each of the plungers 30. The first eccentric portion 43 is provided with a rotating wheel 44 that abuts against one end of the plunger 30. The eccentric action of the first eccentric portion 43 in the core hole 11 is transmitted through the eccentric force of the rotating wheel 44, and the plunger 30 is sequentially pushed into the liquid pressurizing chamber 23 to be displaced. The liquid entering the liquid pressurizing chamber 23 can be pressurized by the plunger 30, discharged from the inlet and outlet port 13, and discharged through the check valve group 14 and then connected by the liquid outlet 16 The use of the pressurized liquid is characterized in that the core hole 11 of the pump body 10 is radially, and the fixing hole 12 is staggered to open an assembly hole 17, and the output shaft 40 is covered by a bottom cover 50 and an inner cover 60. The spindle body 42 is disposed in the core hole 11 , and the spindle body 42 is formed with a second eccentric portion 45 opposite to the assembly hole 17 , and the assembly of the output shaft 40 on the end of the inner cover 60 is also in the spindle body 42 . An oil supply deep hole 46 is defined in the axial direction, and the inner cover 60 defines an oil passage hole 62 opposite to the oil supply deep hole 46. The oil passage hole 62 is externally closed by an outer cover 70 to form an oil supply. a chamber 71, one end of the oil supply chamber 71 is connected to a fuel pipe 80 by a joint 72, and the other end is communicated with the oil supply deep hole 46 through the oil passage hole 62. The radial direction of the oil supply deep hole 46 At least one oil outlet hole 47 passing through the surface of the first eccentric portion 43 is provided at least with respect to the first eccentric portion 43. Further, an oil delivery device 90 is disposed on the assembly hole 17 of the pump body 10, and the oil is fed. The 90 is fixed at the opening end of the assembly hole 17, and an oil shut-off valve 91 is fixedly closed. The outer end of the oil discharge check valve 91 is a pipe joint 92 and the oil pipe. 80 is connected, and an oil pressurizing chamber 93 is formed inside, and the oil pressurizing chamber 93 is provided with a telescopic piston 95 which is pushed by a compression spring 94, and the telescopic piston 95 has an allowable oil in the oil. a piston-shaped oil inlet check valve portion 96 that slides up and down in the liquid pressurizing chamber 93, and one end of the oil inlet check valve portion 96 extends toward the core hole 11 to abut against the output shaft 40 a pushing tube 97 on the second eccentric portion 45, one end of the pressing tube 97 extends in the core hole 11, and more than one is provided, so that the oil pressurizing chamber 93 can communicate with the round core hole 11 The oil suction hole 98; when the output shaft 40 is driven by the motor, and the rotary wheel of the first eccentric portion 43 drives each plunger 30 to reciprocate in the liquid pressurizing chamber 23 of the plunger cap group 20 to pressurize the liquid When the liquid in the chamber 23 is pressurized and the pressurized liquid is terminated from the liquid outlet 16 as shown in Figs. 6, 7, the telescopic piston 95 of the oil feeder 90 is supported by the compression spring 94, which is pressed. The end of the tube 97 is intermittently pressed against the second eccentric portion 45 of the output shaft 40, causing the telescopic piston 95 to be generated in the oil pressurizing chamber 93 as the second eccentric portion 45 is rotated. The upper and lower displacement reciprocating motion, as shown in FIG. 6, when the telescopic piston 95 is displaced to the outside of the oil pressurizing chamber 93, the oil pressurizing chamber 93 forms a negative pressure, and the oil inlet check valve portion 96 opens, and the inner core hole 11 is lubricated. The oil is sucked into the oil pressurizing chamber 93 from the oil suction hole 98, and, as shown in Fig. 7, when the telescopic piston 95 is displaced into the oil pressurizing chamber 93, the oil pressurizing chamber 93 forms a positive pressure, and the oil is expanded and contracted. The piston 95 pressurizes and pushes the valve of the oil discharge check valve 91, and outputs the oil supply chamber 71 inside the outer cover 70 along the oil pipe 80, so that the oil supply deep hole 46 inside the output shaft 40 can be supplied from the oil supply chamber 71. The end receives pressurized oil, forcibly releases lubricating oil from the oil outlet hole 47 to the surface of the first eccentric portion 43, and causes the lubricating oil to flow back to the core hole 11; the overall structure, as shown in Figures 3, 6, and 7. The first eccentric portion 43 of the output shaft 40 is the most stressed force when the liquid is pressurized, and can be directly driven by the power of the output shaft 40 itself. The second eccentric portion 45 pushes the telescopic piston 95 of the oil feeder 90 to actuate, sucks the lubricating oil in the core hole 11 and pressurizes it into the oil supply deep hole 46 inside the output shaft 40, forcing it to be released from the oil outlet hole 41. Cycling replenishment on the surface of the first eccentric portion 43 causes the rotation of the rotating wheel 44 of the contact plunger 30 on the first eccentric portion 43 to maintain good lubrication for a long period of time, effectively extending the output shaft 40 and or the rotating wheel The service life of 44.

According to the above embodiment, in FIG. 1, 2, and 4, the inner oil supply deep hole 46 of the output shaft 40 is radially provided with a secondary oil outlet hole 47, and the surface of the first eccentric portion 43 is radially opposed to the first eccentric portion 43. Further, a concave ring groove 48 is formed in the radial recess to be in contact with the outlet of the oil outlet hole 47; the lubricating oil forcibly released from the oil outlet hole 47 can flow along the concave ring groove 48, increasing the first The replenishing speed of the oil loss on the surface of the eccentric portion 43 and the setting of the rotating wheel 44 The rotation on the first eccentric portion 43 obtains a comprehensive lubrication effect.

According to the above embodiment, in FIG. 1 and FIG. 4, the outer cover 70 is closed on the outside of the oil passage hole 62 of the inner cover 60 to form an oil supply chamber 71, and the oil supply chamber 71 and the oil passage hole 62 An oil filter net 73 is further disposed in between; the iron scrap impurities contained in the lubricating oil in the core hole 11 can be sucked into the oil core 90 to suck the lubricating oil in the core hole 11, and the circulating pressure is pushed from the oil outlet hole. When the liquid is returned to the inside of the core hole 11, the impurity of the oil filter net 73 is filtered to achieve the effect of purifying the oil in the lubricating oil.

According to the above embodiment, wherein, as shown in FIGS. 1, 4 and 5, the oil discharge check valve 91 of the oil feeder 90 has a valve seat 910 which is set as a nut shape and screwed in The threaded portion of the assembly hole 17 is internally formed with a valve chamber 911. The valve chamber 911 is provided with an inner screw hole 912 at one end to provide the pipe joint 92, and the other end has a pressurization with the oil. The valve port communicated with the chamber 93, and the valve chamber 911 is further provided with a force spring 914 for pushing a ball 915 to normally close the valve port 913; as shown in Fig. 7, the telescopic piston 95 is outputted by the second eccentric portion 45 of the shaft 40. When the pressure is pushed into the oil pressurizing chamber 93 for the contraction displacement, the positive pressure generated by the action of the oil in the oil pressurizing chamber 93 by the telescopic piston 95 is such that the ball 915 can be subjected to the oil pressure (thrust). Leaving the valve port 913 forms a valve opening action, causing pressurized oil to be input from the pipe joint 92 end; otherwise, as shown in FIG. 6, when the telescopic piston 95 is pushed back by the compression spring 94 to the oil pressurizing chamber 93 for extension displacement Then, the valve port 913 can be sealed by the ball 915, and the anti-reverse effect of the oil flowing back to the oil pressurizing chamber 93 at the end of the pipe joint 92 can be achieved.

According to the above embodiment, wherein, as shown in Figs. 1, 4, and 5, the telescopic piston 95 of the oil feeder 90 has an oil inlet check valve portion 96, and a valve is formed in the oil inlet check valve portion 96. The chamber 960 is connected to the tube hole 970 of the pressing tube 97 at one end, and communicates with the core hole 11 via the oil suction hole 98, and the other end is fixed with a supporting member 961 for supporting a force spring 962. A ball 963 is inserted to close the opening of the pipe hole 970, and a hole 964 is defined in the support member 961 to communicate the valve chamber 960 with the oil pressurizing chamber 93; as shown in Fig. 6, the jingle compression spring 94 When the elastic pushback telescopic piston 95 is extended to the outside of the oil pressurizing chamber 93, the negative pressure formed by the oil pressurizing valve portion 93 moving up and sliding by the oil check valve portion 96 causes the ball 963 to be under negative pressure. The nozzle opening away from the tube hole 970 forms a valve opening action, so that the lubricating oil in the core hole 11 can be filled into the oil pressing chamber 93 by the oil suction hole 98; otherwise, as shown in FIG. 7, when the output shaft 40 is second When the eccentric portion 45 presses the telescopic piston 95 to the contraction displacement in the oil pressurizing chamber 93, the nozzle of the tube hole 970 can be sealed by the ball 963, and the oil flows back to the round core in the oil pressurizing chamber 93. The anti-reverse effect of the hole 11.

According to the above embodiment, wherein, as shown in Figs. 1, 4, and 5, the oil discharge check valve 91 of the oil feeder 90 is closed and fixed at the orifice end of the assembly hole 17, and the inner end of the oil discharge check valve 91 is closed. Further, a grinding material storage pipe 99 is provided, and the oil pressurizing chamber 93 is formed inside the receiving pipe 99, and the compression spring 94 and the telescopic piston 95 are housed together to press the telescopic piston 95. The tube 97 extends from one end of the receiving tube 99 into the core hole 11 to form abutting engagement with the second eccentric portion 45 of the output shaft 40; the compression spring 94 and the telescopic piston 95 are combined by the receiving tube 99. The oil discharge check valve 91 is fixed to the assembly hole 17 to facilitate the installation or disassembly of the oil feeder 90.

According to the above embodiment, for the implementation of the small-type liquid pressure pump, wherein, as shown in FIG. 8, the oil discharge check valve 91 of the oil feeder 90 is closed and fixed at the orifice end of the assembly hole 17, and the outlet is closed. An oil pressurizing chamber 93 formed at the inner end of the oil check valve 91 is relatively movable The plug 95 is provided with a first sliding sleeve 990 for providing a sliding material for sliding the inlet valve portion 96, and a second sliding sleeve 991 for providing a sliding material for sliding the pressing tube 97; The wear properties of the sliding sleeves 990 and 991 allow the telescopic piston 95 to expand and contract in the oil pressurizing chamber 93, thereby reducing frictional resistance or wear.

According to the above embodiment, as shown in FIG. 9, a joint 72 is provided at one end of the oil supply chamber 71 of the outer cover 70, and a pipe joint 92 is provided at the outer end of the oil discharge check valve 91 of the oil feeder 90. The other end of the oil pipe 80A is connected to one end of a radiator 81, and the other end of the radiator 81 is connected to the joint 72 by an oil pipe 80B; when the oil feeder 90 is used to lubricate the inner core hole 11 When the pressure is applied to the end of the fuel supply chamber 71, the heat of the lubricating oil is dissipated by the radiator 81, and the operating temperature generated by the operation of the output shaft 40 in the core hole 11 can be utilized. The cycle is in and out, and the heat dissipation effect is easily obtained.

The above description is intended to be illustrative, and not restrictive, and many modifications, variations and equivalents may be made without departing from the spirit and scope of the invention. However, they all fall within the scope of protection of the present invention.

10‧‧‧Pump ontology

11‧‧‧ round core hole

17‧‧‧Assembled holes

30‧‧‧Plunger

40‧‧‧Output shaft

41‧‧‧Extension

42‧‧‧ spindle body

43‧‧‧First eccentric

44‧‧‧Rotating wheel

45‧‧‧Second eccentric

46‧‧‧ oil supply deep hole

47‧‧‧ oil hole

48‧‧‧ concave ring groove

50‧‧‧ bottom cover

51‧‧‧ bearing

52‧‧‧ oil seal

60‧‧‧ inner cover

61‧‧‧ bearing

62‧‧‧through oil hole

70‧‧‧ Cover

71‧‧‧ Oil supply room

72‧‧‧Connectors

73‧‧‧Filter oil net

80‧‧‧ oil pipe

90‧‧‧ oil feeder

91‧‧‧Oil stop valve

910‧‧‧ valve seat

911‧‧‧ valve room

912‧‧‧Neutral hole

913‧‧‧ valve port

914‧‧‧tension spring

915‧‧‧balls

92‧‧‧ pipe joint

93‧‧‧ Oil pressurization chamber

94‧‧‧Compressed spring

95‧‧‧ Telescopic piston

96‧‧‧Injection check valve

960‧‧‧Valves

961‧‧‧Support

962‧‧‧tension spring

963‧‧‧ balls

964‧‧‧Perforation

97‧‧‧Pushing tube

970‧‧‧ tube hole

98‧‧‧ Oil suction hole

99‧‧‧ 收纳 tube

Claims (7)

The utility model relates to a liquid pressurized pump output shaft lubricating structure, which is a pump, comprising a pump body, a plurality of plunger cap groups, a plurality of pillar plugs and a power output shaft; the pump body has a mechanical chamber and is filled a round core hole having a lubricating oil, wherein the radial hole of the core hole is uniformly arranged with a plurality of fixing holes, and each of the fixing holes is respectively provided with an inlet and outlet port in the radial direction, and each of the inlet and outlet ports is Each of the check valve groups is in communication with the check valve group, and the liquid return end and the liquid discharge end of each check valve group are respectively connected to a liquid inlet hole and a liquid outlet hole, so that the liquid inlet and outlet are respectively connected The external liquid can be connected to the liquid inlet through the liquid inlet of the check valve group; each of the plunger cap groups is respectively disposed on the fixing hole of the pump body by a cap body. The inside of the cap body has a liquid pressurizing chamber, and one end of the liquid pressurizing chamber is radially provided with at least one through hole communicating with the inlet and outlet ports; and each plunger is separately assembled in the plunger cap group a liquid pressurized chamber, one end of which extends into the core hole of the pump body; the output shaft is a bottom And an inner cover is locked at both ends of the core hole of the pump body, and the sealing group is disposed in the core hole, and has a power output end and a main shaft body, and the output end extends out of the bottom cover and a motor Connecting, the spindle body can be rotated by the motor in the core hole, and a first eccentric portion is formed on one end of each of the plungers, and the first eccentric portion is provided with one end of the plunger a rotating wheel abutting, the eccentric action of the first eccentric portion in the core hole, through the eccentric force of the rotating wheel, sequentially pushing each plunger to the liquid pressurized chamber to make the entry The liquid in the liquid pressurized chamber can be pressurized by the plunger, discharged from the inlet and outlet, passed through the liquid returning of the check valve group, and then used by the liquid outlet to receive the pressurized liquid; The radial direction of the core hole of the pump body is offset from the fixing hole and an assembly hole is formed. The output shaft is assembled in the core hole by a bottom cover and an inner cover, and the spindle body is opposite to the assembly. The hole is formed with a second eccentric portion, and the output shaft is assembled on the inner cover end Also in this An oil supply deep hole is defined in the inner side of the main shaft body, and the inner cover defines an oil passage hole opposite to the oil supply deep hole, and the oil passage hole is externally closed by an outer cover to form an oil supply chamber. One end of the oil supply chamber is connected to a fuel pipe by a joint, and the other end is connected to the oil supply deep hole through the oil passage hole, and the radial direction of the oil supply deep hole is at least opposite to the first eccentric portion. One or more oil outlet holes passing through the surface of the first eccentric portion; and an oil delivery device is disposed on the assembly hole of the pump body, the oil feeder is closed at the orifice end of the assembly hole An oil return check valve is provided, the outer end of the oil discharge check valve is connected with the oil pipe by a pipe joint, and the inner end is provided with a storage pipe, and an oil pressurization chamber is formed inside the storage pipe, The oil pressurized chamber is provided with a telescopic piston pushed by a compression spring, and the telescopic piston has an oil inlet check valve portion that allows the oil to be moved up and down in the oil pressure chamber, and the oil inlet check valve portion One end of the receiving tube is provided with a pushing tube extending from one end of the receiving tube into the core hole Abutting against the second eccentric portion of the output shaft, and one end of the pressing tube extends in the core hole, and further comprises one or more oil absorbing means for the oil pressing chamber to communicate with the core hole When the output shaft is driven by the motor, each of the plungers is driven by the rotating wheel on the first eccentric portion to reciprocate in the liquid pressure chamber of the plunger cap group, and the liquid in the pressurized chamber is pressurized and discharged from the liquid. When the nozzle end is connected to the pressurized liquid, the telescopic piston of the oil feeder is supported by the compression spring, and the end portion of the pressing tube is constantly pressed against the second eccentric portion of the output shaft to cause the expansion and contraction. The piston will reciprocate up and down in the oil pressurizing chamber with the rotation of the second eccentric portion, and when the telescopic piston is displaced to the oil pressurized outdoor, the oil pressurizing chamber forms a negative pressure, and the oil check valve The valve is opened, the lubricating oil in the round core hole is filled into the oil pressurizing chamber from the oil suction hole, and when the telescopic piston is displaced into the oil pressurizing chamber, the oil pressurizing chamber forms a positive pressure, and the oil is expanded and contracted. Pressurize the valve of the oil check valve and output it along the oil pipe Into the interior of the outer cover supply chamber, the interior of the output shaft deep oil, obtained from the oil supply chamber side of the oil pressure, Forcibly releasing lubricating oil from the oil outlet hole to the surface of the first eccentric portion; the overall structure, the first eccentric portion of the output shaft acts as the maximum load on the liquid pressurizing work, and can be powered by the output shaft itself. Directly by a second eccentric portion pushes the telescopic piston of the oil feeder to actuate, sucks the lubricating oil in the core hole, and pushes it into the deep hole of the oil supply inside the output shaft, forcing the first out of the oil hole The surface of the eccentric portion is cyclically replenished, so that the rotation of the rotating wheel contacting the plunger on the first eccentric portion can maintain good lubrication for a long time, and effectively extend the service life of the output shaft and the rotating wheel. The liquid pressure pump output shaft lubrication structure according to the first aspect of the patent application, wherein the inner oil supply deep hole of the output shaft is radially provided with a secondary oil outlet hole, the first eccentric portion The surface is further provided with a concave ring groove connected to the outlet of the oil outlet hole; the lubricating oil forcedly released from the oil outlet hole can flow along the concave ring groove to increase the oil loss on the surface of the first eccentric portion. The speed is replenished and the rotation of the rotating wheel set on the first eccentric portion is fully lubricated. The liquid pressure pump output shaft lubrication structure according to claim 1, wherein the outer cover is closed outside the oil passage hole of the inner cover to form an oil supply chamber, the oil supply chamber and the oil supply An oil filter mesh is also arranged between the through holes; the iron scrap impurities contained in the lubricating oil in the round core hole can be sucked into the oil in the round core hole in the oil feeder, and the cyclic pressure push is pushed back from the oil outlet hole. In the process of the inner core hole, the impurities of the oil filter are filtered to achieve the effect of purifying the oil in the lubricating oil. The liquid pressure pump output shaft lubrication structure according to the first aspect of the patent application, wherein the oil discharge check valve of the oil feeder has a valve seat, and the valve seat is set to a nut shape, and The threaded portion is screwed into the threaded portion of the assembly hole, and a valve chamber is formed therein. The valve chamber is provided with an inner screw hole to provide the pipe joint connection, and the other end has a connection with the oil pressurizing chamber. a valve port, and the valve chamber is further provided with a force spring to push a ball to close the valve port at all times; When the contraction piston is pushed by the second eccentric portion of the output shaft to the oil pressure chamber for contraction displacement, the positive pressure generated by the pressure of the oil pressurized chamber by the telescopic piston is such that the ball can be subjected to the oil pressure. Leaving the valve port to form a valve opening action, causing pressurized oil to be input from the pipe joint end; conversely, when the telescopic piston is pushed back to the oil pressurizing chamber by the compression spring for extension displacement, the valve port can be sealed by the ball , to achieve the anti-reverse effect of the oil flow from the pipe joint end to the oil pressurization chamber. The liquid pressure pump output shaft lubrication structure according to the first aspect of the patent application, wherein the telescopic piston of the oil feeder has an oil inlet check valve portion, and a valve chamber is formed in the oil inlet check valve portion. One end of the valve chamber is connected to the tube hole of the pressing tube, and communicates with the core hole through the oil suction hole, and the other end is fixed with a support member for supporting a force spring to push a ball to close the hole of the tube hole. a port, and a through hole is formed in the support member, so that the valve chamber communicates with the oil pressurization chamber; when the compression spring elastically pushes the telescopic piston to the oil pressurizing chamber for extension displacement, the oil is pressurized The negative pressure formed by the upward movement of the oil returning valve part causes the ball to be sucked by the negative pressure to the valve opening of the pipe hole to form a valve opening action, so that the lubricating oil in the round core hole can be sucked into the oil by the oil suction hole. The liquid pressurizing chamber is filled; otherwise, when the second eccentric portion of the output shaft pushes the telescopic piston into the oil pressurized chamber for contraction displacement, the nozzle of the tube hole can be sealed by the ball to reach the oil pressurized chamber. The anti-reverse effect of the oil flowing back to the core hole. The liquid pressure pump output shaft lubrication structure according to the first aspect of the patent application, wherein the oil discharge check valve of the oil feeder is closed and fixed at the orifice end of the assembly hole, and the oil discharge check valve An oil pressurization chamber formed at the inner end is opposite to the telescopic piston, and is provided with a first sliding sleeve for providing a sliding material for sliding the oil inlet check valve portion, and a grinding material for providing sliding of the push tube The second sliding sleeve; by the abrasiveness of the first and second sliding sleeves, the telescopic piston is telescopically slidable in the oil pressurized chamber, thereby reducing frictional resistance or wear. The liquid pressure pump output shaft lubrication structure according to the first aspect of the patent application, wherein a joint is provided at one end of the oil supply chamber of the outer cover, and a pipe joint is provided at an outer end of the oil discharge check valve of the oil feed device. An oil pipe is connected, the other end of the oil pipe is connected to one end of a heat sink, and the other end of the heat pipe is connected with the joint by an oil pipe; when the oil feeder pressurizes the lubricating oil in the core hole When the fuel supply chamber is transported, the heat is dissipated by the heat sink, and the operating temperature generated by the output shaft in the core hole can be utilized to facilitate the heat dissipation by the circulation of the lubricating oil in the core hole. effect.