CN205277799U - Resistant impeller pump that changes futilely of long -life - Google Patents

Abstract

The utility model discloses a resistant impeller pump that changes futilely of long -life, including the pump body and pump cover, establish two rotors in the pump body, two rotors are respectively through last pivot and infraduction spindle drive, the fuel tank cap is established to pump body rear end, the pump body and fuel tank cap are closed up formation and are gone up oil pocket and lower oil pocket, establish first antifriction plate and second antifriction plate in the pump body, establish preceding antifriction plate in the pump cover, the lubricating oil of intracavity of oiling gets into first antifriction plate, preceding antifriction plate, the second antifriction plate returns the oil pocket with lower oil pocket and through lower oil pump, antifriction plate and lower wear -proof plate are established to the hoop inner wall of the pump body, go up the second cavity intercommunication of antifriction plate and go up the feed liquor hole, lower wear -proof plate's second cavity intercommunication lower liquid inlet, can store the fluid of being carried in the second cavity. The utility model discloses a resistant impeller pump that changes futilely of long -life has overcome traditional impeller pump, and to strictly forbid to take off the technical board of liquid idle running sex -limited, and life prolongs by a wide margin, and operative employee's intensity of labour can alleviate.

Description

A kind of long lifetime is resistance to dry turns rotor pump

Technical field

The utility model relates to rotor pump technical field, especially relates to a kind of long lifetime and resistance to dry turns rotor pump.

Background technology

Rotor pump is also known as colloid pump, lobe pump, three blade pump, general-purpose transferpump etc., and rotor pump belongs to volumetric pump. it is that the periodicity by means of the multiple fixed volume convey unit in working chamber is converted and reaches the object of conveyance fluid. rotor is that pump is used for the key part of conveyance fluid, rotor rotates and the pump housing and pump cover frictional heat, the full dynamic fluid by rotor conveying takes away these heats, once fluid by draining or does not connect, if operative employee does not realize, shut down not in time, have more than is needed several minutes, heat is taken away owing to having lacked fluxion, tightness system, a lot of part such as rotor all can be burnt out by the heat of friction accumulation, pump must keep in repair or change, this kind of phenomenon especially bothers in the chemical plant that can not be interrupted, operative employee needs the aspiration phases of moment monitoring pump, connect lavatory and all to be had relief rotation, very inconvenient, it is badly in need of improving.

Practical novel content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of long lifetime is provided resistance to dry to turn rotor pump, overcome the technical limitation that conventional rotors pump forbids de-liquid air to turn, work-ing life significantly extends, and the labour intensity of operative employee is alleviated, make user under the equal prerequisite dropped into, ensure that the stability of production, reduce the continuous input of pump class and the turnover rate of equipment.

For achieving the above object, the technical solution of the utility model is: a kind of long lifetime is resistance to dry turns rotor pump, comprise the pump housing and pump cover that are connected by fastening piece, two rotors coordinating distribution up and down it are provided with in the described pump housing, two rotors are driven by upper rotating shaft and lower rotary shaft respectively, described pump housing both sides are respectively equipped with opening for feed and discharge port, described pump housing rear end is provided with fuel tank cap, the dividing plate of the transverse direction of laminating pump housing rear end it is provided with in the middle part of described fuel tank cap, spatial separation between the pump housing and fuel tank cap is become upper oil cavitie and lower oil cavitie by described dividing plate, wear-resisting plate before the 8-shaped supporting with its inwall it is provided with in described pump cover, described pump body rear end is provided with the rear wear-resisting plate supporting with its inwall, after described, wear-resisting plate comprises the first symmetrical up and down wear-resisting plate and the 2nd wear-resisting plate, described first wear-resisting plate and the 2nd wear-resisting plate form the cross section of 8-shaped after merging, the boundary place of the first wear-resisting plate and the 2nd wear-resisting plate is provided with filler strip, described front wear-resisting plate, the inside of the first wear-resisting plate and the 2nd wear-resisting plate is equipped with the first cavity, described first cavity makes front wear-resisting plate, first wear-resisting plate and the 2nd wear-resisting plate all form antetheca and Hou Bi, the thickness of antetheca and rear wall is equal, the ratio of the thickness of antetheca and the thickness of the first cavity is 2:3��1:1, near front wear-resisting plate in described first cavity, the edge of the first wear-resisting plate and the 2nd wear-resisting plate is provided with multiple first pillar stiffener, the center, top and the bottom being positioned at front wear-resisting plate in described first cavity is equipped with the first pillar stiffener, the two ends of described first pillar stiffener connect front wear-resisting plate respectively, first wear-resisting plate and the 2nd wear-resisting plate front and rear wall separately, described front wear-resisting plate, first wear-resisting plate and the 2nd wear-resisting plate are equipped with the through hole run through, described through hole is through the center of the first pillar stiffener, the first screw is worn by front wear-resisting plate in through hole, first wear-resisting plate and the 2nd wear-resisting plate are separately fixed on pump cover and the pump housing, what the first screw periphery of the center, top and the bottom of described front wear-resisting plate was respectively equipped with the rear wall that runs through front wear-resisting plate and the first corresponding pillar stiffener enters oil runner and oil return runner, described enter oil runner entrance be positioned on the rear wall at front wear-resisting plate central upper portion place, enter oil runner outlet be positioned at front wear-resisting plate central upper portion place the first pillar stiffener lower end outer wall on, enter oil runner to tilt downwards gradually from the inlet to the outlet, the entrance of described oil return runner is positioned on the outer wall of the upper end of first pillar stiffener at the lower central place of front wear-resisting plate, the outlet of oil return runner is positioned on the rear wall at front wear-resisting plate lower central place, oil return runner tilts downwards from the inlet to the outlet gradually, first cavity bottom of described front wear-resisting plate is provided with the front outer fuel-displaced runner running through pump cover, first cavity bottom of described 2nd wear-resisting plate is provided with the rear outer fuel-displaced runner running through the pump housing, first cavity upper back of described first wear-resisting plate is provided with the interior fuel-displaced runner running through wall after wall and the first wear-resisting plate after the pump housing, the ring inward wall of the described pump housing is provided with the upper wear-resisting plate of arc symmetrical up and down and lower wear-resisting plate, the inside of described wear-resisting plate and lower wear-resisting plate is provided with the 2nd cavity, described 2nd cavity makes wear-resisting plate and lower wear-resisting plate all form Shang Bi and Xia Bi, the thickness of Shang Bi and lower wall is equal, the ratio of the thickness of upper wall and the thickness of the 2nd cavity is 2:3��1:1, the 2nd pillar stiffener of the wall up and down of the wall up and down being connected to wear-resisting plate and lower wear-resisting plate it is provided with in described 2nd cavity, described wear-resisting plate and lower wear-resisting plate run through the 2nd screw being provided with and being fixed in pump housing inwall, described 2nd screw is through the center of the 2nd pillar stiffener, the upper end center of the lower wall of described wear-resisting plate is provided with the upper inlet opening being connected its 2nd cavity, the two ends of the upper wall of described lower wear-resisting plate are provided with the lower inlet opening being connected its 2nd cavity, it is provided with upper channel in described upper rotating shaft, the entrance of described upper channel is positioned on the outer wall of upper rotating shaft of upper oil cavitie, the outlet of upper channel has two, one of them outlet is positioned on the outer wall of the upper rotating shaft of the first cavity of the first wear-resisting plate, another outlet is positioned at the end center of rotating shaft near front wear-resisting plate side, it is provided with lower channel in described lower rotary shaft, the entrance of described lower channel is positioned at the end center of lower rotary shaft near front wear-resisting plate side, the outlet of lower channel has two, one of them outlet is positioned on the outer wall of the lower rotary shaft of the first cavity of the 2nd wear-resisting plate, another outlet is positioned on the outer wall of lower rotary shaft of lower oil cavitie, it is provided with oiling pump in described upper oil cavitie, the oil inlet pipe of described oiling pump stretches in the first cavity of the first wear-resisting plate through interior fuel-displaced runner, lower oil pump it is provided with in described lower oil cavitie, described lower oil pump is provided with three in-lines and an outlet line, one of them in-line stretches in the first cavity of front wear-resisting plate through front outer fuel-displaced runner, another in-line stretches in the first cavity of the 2nd wear-resisting plate through rear outer fuel-displaced runner, last in-line is positioned at the bottom of lower oil cavitie, outlet line stretches in upper oil cavitie through dividing plate.

The center of described first wear-resisting plate is provided with the axis hole kept supplying rotating shaft and pass, and the center of described 2nd wear-resisting plate is provided with for the axis hole that lower rotary shaft passes.

Upper rotating shaft on front side of described axis hole and sheathed lip seal circle on lower rotary shaft, described lip seal circle be provided with three with the sealing lip of the first wear-resisting plate and the antetheca shrink-fit of the 2nd wear-resisting plate.

Sheathed axle sleeve on the upper rotating shaft of side and lower rotary shaft after described axis hole, after described axle sleeve, ring established by side card, described dynamic ring rear end is to being connected to quiet ring, described quiet ring rear end is to being connected to spring, quiet ring and spring upper and lower sides are compressed by gland by side after sealing socket and pressing plate crimping, described sealing socket and pressing plate respectively.

Described fuel tank cap outer wall ring is to being provided with radiator element.

It is provided with rubber cushion between the outer rim of described front wear-resisting plate and pump cover inwall, between the arc outer rim of described first wear-resisting plate and the 2nd wear-resisting plate and pump housing inwall, it is provided with rubber cushion.

The beneficial effects of the utility model are: the fluid that upper wear-resisting plate and lower wear-resisting plate can bring in the 2nd cavity store pump operation of self, the cooling performance to rotor periphery circumference is strengthened in short period of time when fluid is drained or do not connect, lubricating oil in upper oil cavitie enters from upper channel and flows into the first wear-resisting plate and front wear-resisting plate, and enter the 2nd wear-resisting plate and lower oil cavitie along lower channel, the cooling performance of the both ends of the surface to rotor is strengthened when fluid is drained or do not connect, can accomplish rotor, the omnibearing protection of the pump housing and pump cover, oiling pump and lower oil pump the speed that can strengthen changing oil is set, improve cooling performance further.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the enlarged view at A place in Fig. 1;

Fig. 3 is the enlarged view at B place in Fig. 1;

Fig. 4 is the enlarged view at C place in Fig. 1;

Fig. 5 is the partial side view of the pump housing of the present utility model;

Fig. 6 is the enlarged view at D place in Fig. 5;

Fig. 7 is the partial side view of pump cover of the present utility model;

Fig. 8 is the side-view of rear wear-resisting plate of the present utility model.

In figure: the pump housing 1, opening for feed 11, discharge port 12, pump cover 2, rubber cushion 21, rotor 3, upper rotating shaft 4, lower rotary shaft 41, upper channel 42, lower channel 43, lip seal circle 45, axle sleeve 46, dynamic ring 47, front wear-resisting plate 5, first cavity 51, first pillar stiffener 52, first screw 53, enter oil runner 54, front outer fuel-displaced runner 55, 2nd wear-resisting plate 56, axis hole 57, interior fuel-displaced runner 58, rear outer fuel-displaced runner 59, fuel tank cap 6, lower oil cavitie 61, radiator element 62, oiling pump 63, dividing plate 64, upper oil cavitie 65, lower oil pump 66, upper wear-resisting plate 7, 2nd cavity 71, 2nd pillar stiffener 72, 2nd screw 73, upper inlet opening 74, lower wear-resisting plate 75, lower inlet opening 76, quiet ring 8, sealing socket 81, spring 82, pressing plate 83, gland 84, oil return runner 9, first wear-resisting plate 91, filler strip 92.

Embodiment

Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.

As shown in Fig. 1��Fig. 8, a kind of long lifetime is resistance to dry turns rotor pump, comprise the pump housing 1 and pump cover 2 that are connected by fastening piece, fastening piece is located at both peripheries, two rotors 3 coordinating distribution up and down it are provided with in the described pump housing 1, two rotors 3 are driven by upper rotating shaft 4 and lower rotary shaft 41 respectively, upper rotating shaft 4 and lower rotary shaft 41 linkage make two rotors 3 coordinate rotation, the described pump housing 1 both sides are respectively equipped with opening for feed 11 and discharge port 12, close opening for feed 11 place is low pressure area, is high pressure area near discharge port 12 place.

The described pump housing 1 rear end is provided with fuel tank cap 6, the dividing plate 64 of the transverse direction of the laminating pump housing 1 rear end it is provided with in the middle part of described fuel tank cap 6, spatial separation between the pump housing 1 and fuel tank cap 6 is become upper oil cavitie 65 and lower oil cavitie 61 by described dividing plate 64, lubricating oil all can be stored in upper oil cavitie 65 and lower oil cavitie 61, lubricating oil can play the separate lubrication effect to upper rotating shaft 4 and lower rotary shaft 41, can play again thermolysis simultaneously.

Wear-resisting plate 5 before being provided with the 8-shaped supporting with its inwall in described pump cover 2, the described pump housing 1 Internal back end is provided with the rear wear-resisting plate supporting with its inwall, after described, wear-resisting plate comprises the first symmetrical up and down wear-resisting plate 91 and the 2nd wear-resisting plate 56, described first wear-resisting plate 91 and the 2nd wear-resisting plate 56 form the cross section of 8-shaped after merging, the boundary place of the first wear-resisting plate 91 and the 2nd wear-resisting plate 56 is provided with filler strip 92, the wear-resisting plate of the first of boundary place 91 and the 2nd wear-resisting plate 56 are straight plane, filler strip 92 can prevent the fluid being transferred from leaking from the gap between the first wear-resisting plate 91 and the 2nd wear-resisting plate 56, it is provided with rubber cushion 21 between the outer rim of described front wear-resisting plate 5 and pump cover 2 inwall, it is provided with rubber cushion 21 between the arc outer rim of described first wear-resisting plate 91 and the 2nd wear-resisting plate 56 and the pump housing 1 inwall, rubber cushion 21 can prevent the fluid being transferred from leaking from gap, the end face of rotor 3 and front wear-resisting plate 5 can be cushioned again, circumferential reactive force when first wear-resisting plate 91 or the 2nd wear-resisting plate 56 rub.

Described front wear-resisting plate 5, the inside of the first wear-resisting plate 91 and the 2nd wear-resisting plate 56 is equipped with the first cavity 51, described first cavity 51 makes front wear-resisting plate 5, first wear-resisting plate 91 and the 2nd wear-resisting plate 56 all form antetheca and Hou Bi, the thickness of antetheca and rear wall is equal, namely the first cavity 51 is positioned at mid-way, the ratio of the thickness of antetheca and the thickness of the first cavity 51 is 2:3��1:1, this thickness ratio makes the first cavity 51 of the present utility model can hold the more lubricating oil playing cooling effect, in turn ensure that front wear-resisting plate 5, the structural strength of the first wear-resisting plate 91 and the 2nd wear-resisting plate 56, it is unlikely in the friction process with rotor 3 end face and damages.

In described first cavity 51, the edge of the close wear-resisting plate 91 of front wear-resisting plate 5, first and the 2nd wear-resisting plate 56 is provided with multiple first pillar stiffener 52, the center, top and the bottom being positioned at front wear-resisting plate 5 in described first cavity 51 is equipped with the first pillar stiffener 52, the two ends of described first pillar stiffener 52 connect the wear-resisting plate 91 of front wear-resisting plate 5, first and the respective front and rear wall of the 2nd wear-resisting plate 56 respectively, multiple first pillar stiffener 52 distributes rationally, further enhances the structural strength of the front wear-resisting plate 91 of wear-resisting plate 5 first and the 2nd wear-resisting plate 56.

Described front wear-resisting plate 5, first wear-resisting plate 91 and the 2nd wear-resisting plate 56 are equipped with the through hole run through, described through hole is through the center of the first pillar stiffener 52, the first screw 53 is worn by front wear-resisting plate 5 in through hole, first wear-resisting plate 91 and the 2nd wear-resisting plate 56 are separately fixed on pump cover 2 and the pump housing 1, the i.e. quantity of through hole and the quantity of the first pillar stiffener 52 is equal and corresponding setting, through hole runs through antetheca, first pillar stiffener 52 and Hou Bi, the first screw 53 on front wear-resisting plate 5 is worn from its rear wall and the end of the first screw 53 is positioned at rear wall, namely rear wall is not exposed in the end of the first screw 53, the friction of end face before front wear-resisting plate 5 and rotor 3 can not be produced interference, the first screw 53 on first wear-resisting plate 91 and the 2nd wear-resisting plate 56 wears from its antetheca and the end of the first screw 53 is positioned at antetheca, namely antetheca is not exposed in the end of the first screw 53, the friction of the wear-resisting plate 56 of the first wear-resisting plate 91 and the 2nd with rotor 3 aft end face can not be produced interference, first screw 53 runs through antetheca simultaneously, first pillar stiffener 52 and Hou Bi, good and even by power, make front wear-resisting plate 5, first wear-resisting plate 91 and the 2nd wear-resisting plate 56 are fixing reliable, do not take the space of the lubricating oil in the first cavity 51 simultaneously, the cooling area of lubricating oil reaches maximumization, first screw 53 is arranged in the first pillar stiffener 52, the leak point of lubricating oil can not be increased, ensure that the sealing effect of lubricating oil, lubricating oil can not be mixed with the fluid being transferred.

What the first screw 53 periphery of the center, top and the bottom of described front wear-resisting plate 5 was respectively equipped with the rear wall that runs through front wear-resisting plate 5 and the first corresponding pillar stiffener 52 enters oil runner 54 and oil return runner 9, described enter oil runner 54 entrance be positioned on the rear wall at front wear-resisting plate 5 central upper portion place, enter oil runner 54 outlet be positioned at front wear-resisting plate 5 central upper portion place the first pillar stiffener 52 lower end outer wall on, namely the outlet entering oil runner 54 is positioned at the first cavity 51 of front wear-resisting plate 5, enter oil runner 54 to tilt downwards gradually from the inlet to the outlet, ensure that the smooth trickling of lubricating oil, the entrance of described oil return runner 9 is positioned on the outer wall of the upper end of first pillar stiffener 52 at the lower central place of front wear-resisting plate 5, namely the entrance of oil return runner 9 is positioned at the first cavity 51 of front wear-resisting plate 5 equally, the outlet of oil return runner 9 is positioned on the rear wall at front wear-resisting plate 5 lower central place, oil return runner 9 tilts downwards from the inlet to the outlet gradually, smooth and easy when ensure that oil return.

It is provided with, bottom first cavity 51 of described front wear-resisting plate 5, the front outer fuel-displaced runner 55 running through pump cover 2, front outer fuel-displaced runner 55 also penetrates the rubber cushion 21 of front wear-resisting plate 5 outer rim simultaneously, it is provided with, bottom first cavity 51 of described 2nd wear-resisting plate 56, the rear outer fuel-displaced runner 59 running through the pump housing 1, rear outer fuel-displaced runner 59 also penetrates the rubber cushion 21 of the 2nd wear-resisting plate 56 outer rim simultaneously, first cavity 51 upper back of described first wear-resisting plate 91 is provided with the interior fuel-displaced runner 58 running through the rear wall of the pump housing 1 and the rear wall of the first wear-resisting plate 91, interior fuel-displaced runner 58 makes the first cavity 51 of the first wear-resisting plate 91 be connected with upper oil cavitie 65.

The ring inward wall of the described pump housing 1 is provided with the upper wear-resisting plate 7 of arc symmetrical up and down and lower wear-resisting plate 75, the inside of described wear-resisting plate 7 and lower wear-resisting plate 75 is provided with the 2nd cavity 71, described 2nd cavity 71 makes wear-resisting plate 7 and lower wear-resisting plate 75 all form Shang Bi and Xia Bi, the thickness of Shang Bi and lower wall is equal, namely the 2nd cavity 71 is positioned at mid-way, the ratio of the thickness of upper wall and the thickness of the 2nd cavity 71 is 2:3��1:1, this thickness ratio makes the 2nd cavity 71 of the present utility model can hold the more fluid being transferred, in turn ensure that wear-resisting plate 7 and the structural strength of lower wear-resisting plate 75, be unlikely with rotor 3 outer circumference to friction process in damage.

The 2nd pillar stiffener 72 of the wall up and down of the wall up and down being connected to wear-resisting plate 7 and lower wear-resisting plate 75 it is provided with in described 2nd cavity 71, upper wear-resisting plate 7 and the quantity of the 2nd pillar stiffener 72 of lower wear-resisting plate 75 in the utility model are circumferential 6 row, axially 3 row, totally 18, described wear-resisting plate 7 and lower wear-resisting plate 75 run through the 2nd screw 73 being provided with and being fixed in the pump housing 1 inwall, described 2nd screw 73 is through the center of the 2nd pillar stiffener 72, the i.e. quantity of the 2nd the screw 73 and quantity of the 2nd pillar stiffener 72 is equal and corresponding setting, the 2nd screw 73 on upper wear-resisting plate 7 wears from Qi Xiabi and the end of the 2nd screw 73 is positioned at lower wall, namely lower wall is not exposed in the end of the 2nd screw 73, can not to upper wear-resisting plate 7 and rotor 3 outer circumference to friction produce interference, the 2nd screw 73 on lower wear-resisting plate 75 from it wall wear and the end of the 2nd screw 73 is positioned at wall, namely wall is not exposed in the end of the 2nd screw 73, can not to lower wear-resisting plate 75 and rotor 3 outer circumference to friction produce interference, 2nd screw 73 runs through Shang Bi simultaneously, 2nd pillar stiffener 72 and Xia Bi, good and even by power, make wear-resisting plate 7 and lower wear-resisting plate 75 fixing reliable, do not take the space of the fluid in the 2nd cavity 71 simultaneously, the cooling area of fluid reaches maximumization, 2nd screw 73 is arranged in the 2nd pillar stiffener 72, the leakage point of the fluid being stored in the 2nd cavity 71 can not be increased, good seal performance.

The upper end center of the lower wall of described wear-resisting plate 7 is provided with the upper inlet opening 74 being connected its 2nd cavity 71, the two ends of the upper wall of described lower wear-resisting plate 75 are provided with the lower inlet opening 76 being connected its 2nd cavity 71, lower inlet opening 76 is positioned at the upper wall of lower wear-resisting plate 75 near apical position, downward inclination can be arranged to from outside to the 2nd cavity 71 with inlet opening 76 at present, fluid is facilitated to enter, fluid understand in the process carried by rotor 3 some from inlet opening 74 and lower inlet opening 76 enter respectively in the 2nd cavity 71 of wear-resisting plate 7 and lower wear-resisting plate 75 and store, because upper inlet opening 74 is positioned at position topmost, lower inlet opening 76 is positioned at the close apical position of lower wear-resisting plate 75, therefore the fluid being stored can not leak out from upper inlet opening 74 and lower inlet opening 76, can be strengthened in the short period of time when fluid drains or do not connect to rotor 3 outer circumference to cooling performance.

It is provided with upper channel 42 in described upper rotating shaft 4, the entrance of described upper channel 42 is positioned on the outer wall of upper rotating shaft 4 of upper oil cavitie 65, the entrance being specially upper channel 42 is submerged in lubricating oil, the outlet of upper channel 42 has two, one of them outlet is positioned on the outer wall of the upper rotating shaft 4 of the first cavity 51 of the first wear-resisting plate 91, lubricating oil can be sent in the first cavity 51 of the first wear-resisting plate 91, another outlet is positioned at the end center of rotating shaft 4 near front wear-resisting plate 5 side, it is provided with lower channel 43 in described lower rotary shaft 41, the entrance of described lower channel 43 is positioned at the end center of lower rotary shaft 41 near front wear-resisting plate 5 side, the outlet of lower channel 43 has two, one of them outlet is positioned on the outer wall of the lower rotary shaft 41 of the first cavity 51 of the 2nd wear-resisting plate 56, lubricating oil can be sent in the first cavity 51 of the 2nd wear-resisting plate 56, another outlet is positioned on the outer wall of lower rotary shaft 41 of lower oil cavitie 61, lubricating oil can be sent in lower oil cavitie 61, it is provided with oiling pump 63 in described upper oil cavitie 65, the oil inlet pipe of described oiling pump 63 stretches in the first cavity 51 of the first wear-resisting plate 91 through interior fuel-displaced runner 58, the oil outlet pipe of oiling pump 63 is positioned at upper oil cavitie 65, lower oil pump 66 it is provided with in described lower oil cavitie 61, described lower oil pump 66 is provided with three in-lines and an outlet line, one of them in-line stretches in the first cavity 51 of front wear-resisting plate 5 through front outer fuel-displaced runner 55, another in-line stretches in the first cavity 51 of the 2nd wear-resisting plate 56 through rear outer fuel-displaced runner 59, last in-line is positioned at the bottom of lower oil cavitie 61, outlet line stretches in upper oil cavitie 65 through dividing plate 64, described fuel tank cap 6 outer wall ring is to being provided with radiator element 62.

Lubricating oil in upper oil cavitie 65 enters from upper channel 42, a part enters in the first cavity 51 of the first wear-resisting plate 91, another part flows out from outlet foremost in the first cavity 51 entering and directly entering front wear-resisting plate 5 after oil runner 54, when lubricating oil in the first cavity 51 of front wear-resisting plate 5 is abundant, lubricating oil enters lower channel 43 along oil return runner 9, then flow into respectively in the first cavity 51 of the 2nd wear-resisting plate 56 and lower oil cavitie 61, make front wear-resisting plate 5, a large amount of lubricating oil is all stored in first cavity 51 of the first wear-resisting plate 91 and the 2nd wear-resisting plate 56, the cooling performance of the both ends of the surface to rotor 3 is strengthened when fluid is drained or do not connect, can accomplish rotor 3, the omnibearing protection of the pump housing 1 and pump cover 2, oiling pump 63 and lower oil pump 66 all can be arranged to interval and open, lubricating oil in first cavity 51 of the first wear-resisting plate 91 is sucked back upper oil cavitie 65 by oiling pump 63, lower oil pump 66 is by front wear-resisting plate 5, lubricating oil in first cavity 51 of the 2nd wear-resisting plate 56 and in lower oil cavitie 61 sucks back upper oil cavitie 65, make front wear-resisting plate 5, first wear-resisting plate 91, pressure in 2nd wear-resisting plate 56 and lower oil cavitie 61 reduces, lubricating oil in upper oil cavitie 65 continues flowing and adds to front wear-resisting plate 5, first wear-resisting plate 91, in 2nd wear-resisting plate 56 and lower oil cavitie 61, lubricating oil can be dispelled the heat in the moment by radiator element 62, it is made to remain good cooling performance.

The center of described first wear-resisting plate 91 is provided with the axis hole 57 kept supplying rotating shaft 4 and pass, and the center of described 2nd wear-resisting plate 56 is provided with for the axis hole 57 that lower rotary shaft 41 passes. Upper rotating shaft 4 on front side of described axis hole 57 and sheathed lip seal circle 45 on lower rotary shaft 41, described lip seal circle 45 be provided with three with the sealing lip of the first wear-resisting plate 91 and the antetheca shrink-fit of the 2nd wear-resisting plate 56, the sealing lip of lip seal circle 45 is comparatively soft, and frictional force is little, good sealing effect.

Sheathed axle sleeve 46 on the upper rotating shaft 4 of side and lower rotary shaft 41 after described axis hole 57, after described axle sleeve 46, ring 47 established by side card, described dynamic ring 47 rear end is to being connected to quiet ring 8, described quiet ring 8 rear end is to being connected to spring 82, quiet ring 8 and spring 82 upper and lower sides are crimped by sealing socket 81 and pressing plate 83 respectively, sealing socket 81 and pressing plate 83 are linked together by fastening piece, described sealing socket 81 and the rear side of pressing plate 83 are compressed by gland 84, gland 84 is connected by fastening piece and the pump housing 1 aft end face after compressing, dynamic ring 47 rotates together with lower rotary shaft 41 along with upper rotating shaft 4 and moment and quiet ring 8 produce friction, quiet ring 8 is ejected, after consuming in friction, the sealing condition continuing to keep best by spring 82, friction between quiet ring 8 and dynamic ring 47 also can be played the effect of heat radiation by the lubricating oil in upper oil cavitie 65 and lower oil cavitie 61, extend work-ing life.

The wear-resisting plate 91 of front wear-resisting plate 5, first of the present utility model, the 2nd wear-resisting plate 56, upper wear-resisting plate 7 and lower wear-resisting plate 75 all can conveniently be changed simultaneously, and cost is low, and practicality is good.

The above; it is only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; any it is familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.

Claims (6)

1. ( 1 ) ( 2 ) ( 1 ) ( 3 ) ( 3 ) ( 4 ) ( 41 ) ( 1 ) н ( 11 ) ( 12 ) ( 1 ) ( 6 ) ( 6 ) в ( 1 ) ( 64 ) ( 64 ) ( 1 ) ( 6 ) ( 65 ) ( 61 ) ( 2 ) 8 ε ( 5 ) ( 1 ) ( 91 ) ( 56 ) ( 91 ) ( 56 ) γ 8 ε ( 91 ) ( 56 ) e ( 92 ) ( 5 ) ( 91 ) ( 56 ) e ( 51 ) ( 51 ) ( 5 ) ( 91 ) ( 56 ) γ ( 51 ) 2:3 1:1 ( 51 ) ( 5 ) ( 91 ) ( 56 ) ж ( 52 ) ( 51 ) λ ( 5 ) 2 e ( 52 ) ( 52 ) ( 5 ) ( 91 ) ( 56 ) ( 5 ) ( 91 ) ( 56 ) й ( 52 ) ( 53 ) ( 5 ) ( 91 ) ( 56 ) ( 2 ) ( 1 ) ( 5 ) 2 ( 53 ) Χ й ( 5 ) ( 52 ) ( 54 ) ( 9 ) ( 54 ) λ ( 5 ) ( 54 ) λ ( 5 ) ( 52 ) ( 54 ) б ( 9 ) λ ( 5 ) 2 ( 52 ) ( 9 ) λ ( 5 ) 2 ( 9 ) б ( 5 ) ( 51 ) й ( 2 ) ( 55 ) ( 56 ) ( 51 ) й ( 1 ) ( 59 ) ( 91 ) ( 51 ) й ( 1 ) ( 91 ) ( 58 ) ( 1 ) ε ( 7 ) ( 75 ) ( 7 ) ( 75 ) e ( 71 ) ( 71 ) ( 7 ) ( 75 ) γ ± ± ( 71 ) 2:3 1:1 ( 71 ) e ( 7 ) ± ( 75 ) ± ( 72 ) ( 7 ) ( 75 ) н ( 1 ) ( 73 ) ( 73 ) ( 72 ) ； ( 7 ) ± ( 71 ) ( 74 ) ； ( 75 ) ( 71 ) ( 76 ) ( 4 ) ( 42 ) ( 42 ) λ ( 65 ) ( 4 ) ； ( 42 ) ； λ ( 91 ) ( 51 ) ( 4 ) λ ( 4 ) ( 5 ) ( 41 ) ( 43 ) ； ( 43 ) λ ( 41 ) ( 5 ) ； ( 43 ) λ ( 56 ) ( 51 ) ( 41 ) λ ( 61 ) ( 41 ) ； ( 65 ) ( 63 ) ； ( 63 ) ( 58 ) ( 91 ) ( 51 ) ( 61 ) ( 66 ) ( 66 ) ； ( 55 ) ( 5 ) ( 51 ) ； ( 59 ) ( 56 ) ( 51 ) λ ( 61 ) , ( 64 ) ( 65 )

2. a kind of long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterized in that: the center of described first wear-resisting plate (91) is provided with the axis hole (57) kept supplying rotating shaft (4) and pass, the center of described 2nd wear-resisting plate (56) is provided with for the axis hole (57) that lower rotary shaft (41) passes.

3. a kind of long lifetime resistance to dry turns rotor pump as claimed in claim 2, it is characterized in that: described axis hole (57) front side upper rotating shaft (4) and lower rotary shaft (41) go up sheathed lip seal circle (45), described lip seal circle (45) be provided with three with the sealing lip of the first wear-resisting plate (91) and the antetheca shrink-fit of the 2nd wear-resisting plate (56).

4. a kind of long lifetime resistance to dry turns rotor pump as claimed in claim 3, it is characterized in that: described axis hole (57) is the upper rotating shaft (4) of side and the upper sheathed axle sleeve (46) of lower rotary shaft (41) afterwards, described axle sleeve (46) afterwards side card establish ring (47), described dynamic ring (47) rear end is to being connected to quiet ring (8), described quiet ring (8) rear end is to being connected to spring (82), quiet ring (8) and spring (82) upper and lower sides are respectively by sealing socket (81) and pressing plate (83) crimping, described sealing socket (81) and pressing plate (83) are compressed by gland (84) side afterwards.

5. a kind of long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterised in that: described fuel tank cap (6) outer wall ring is to being provided with radiator element (62).

6. a kind of long lifetime resistance to dry turns rotor pump as claimed in claim 1, it is characterized in that: between the outer rim of described front wear-resisting plate (5) and pump cover (2) inwall, be provided with rubber cushion (21), between the arc outer rim of described first wear-resisting plate (91) and the 2nd wear-resisting plate (56) and the pump housing (1) inwall, it is provided with rubber cushion (21).