CN210068472U - Rolling type sliding vane pump rotor - Google Patents
Rolling type sliding vane pump rotor Download PDFInfo
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- CN210068472U CN210068472U CN201920947613.4U CN201920947613U CN210068472U CN 210068472 U CN210068472 U CN 210068472U CN 201920947613 U CN201920947613 U CN 201920947613U CN 210068472 U CN210068472 U CN 210068472U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 20
- 230000004323 axial length Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model relates to a rolling type sliding vane pump rotor, which comprises a rotor body and a plurality of sliding vane bodies, wherein the rotor body is provided with a plurality of sliding grooves along the circumferential direction in turn, each sliding vane body can be arranged in the corresponding sliding groove in a radial sliding way, the rolling type sliding vane rotor also comprises a roller which is rotatablely matched with the top of each sliding vane body, and the top of each sliding vane body is provided with an arc-shaped roller groove which is used for placing the roller and can be in sealing contact with the excircle of the roller; each sliding groove extends along the axial direction of the rotor body and penetrates through the two axial ends of the rotor body, and the axial length of the roller and the axial length of the sliding sheet body are the same as the axial length of the rotor body. This roll formula gleitbretter pump rotor has effectively avoided adopting the volume loss that parts such as roller seat brought among the prior art, has greatly improved the efficiency of gleitbretter pump to avoid using adapting unit such as bearing, therefore life is longer, and can carry the medium that contains the foreign particles effectively.
Description
Technical Field
The utility model relates to a gleitbretter pump technical field especially relates to a roll formula gleitbretter pump rotor.
Background
The sliding vane pump is a rotary structure displacement pump, and the sliding vane pump changes the volume by means of centrifugal force when a rotor rotates, and the sliding vane and a shell are sealed to generate vacuum degree, so that medium suction, pressurization and discharge are realized. The gleitbretter of gleitbretter pump among the tradition is the slip form operation, and the gleitbretter can set up bilobed, three leaf or more as required in the excircle of rotor promptly, and wherein, the gleitbretter receives centrifugal force to make the top end face of gleitbretter and the inner chamber of casing all form the slip operation from inhaling the chamber rotation operation to the discharge chamber in the rotor is rotatory to reach the effect of carrying various liquid. However, in the operation process of the sliding vane pump, the sliding vane is in direct contact with the inner surface of the pump body to perform sliding friction, so that the sliding vane is large in abrasion, short in service life and required to be replaced frequently; meanwhile, the friction is easy to generate heat, which not only affects the reliability of the product, but also can lead the transported liquid to be vaporized and the working efficiency of the pump to be reduced. To solve this problem, application numbers are: CN200310122941.4 (publication No. CN1635276A) chinese patent discloses a "rolling sliding vane pump", which reduces the wear of the sliding vane by installing a roller on the side of the sliding vane contacting the inner surface of the pump body, so that the roller contacts the inner surface of the pump body, and changing the traditional sliding friction into rolling friction.
However, the sliding vane pump has a certain problem that, firstly, the roller of the rolling device is fixed on the roller seat through the shaft, and then fixed on the sliding vane body through the roller seat, because the roller seat is stationary, sliding friction exists between the end surface of the roller seat and the inner surface of the shell, and rolling friction exists between the roller and the inner surface of the shell, the abrasion degree of the end surface of the roller seat is different from the abrasion degree of the surface of the roller, wherein, the abrasion of the end surface of the roller seat is fast, the surface abrasion of the roller is slow, so that the surface of the roller is partially exposed out of the end surface of the roller seat when in design, which inevitably causes a gap to always exist between the end surface of the roller seat and the inner surface of the shell, and the structure greatly increases the volume loss of the sliding vane pump, so that the pumping efficiency of the sliding vane pump is low; secondly, the roller of the sliding vane pump is rotatably connected to the roller seat through a bearing, and in actual use, the fact that the rotating speed of the bearing is very high due to the fact that the linear speed of the roller is too high is found, so that the service life of the shaft, the bearing and other parts is very short, and when the sliding vane pump with the bearing structure cannot be used for conveying media containing impurities, the bearing is damaged because impurity particles in the media are easily clamped into the bearing, and the service life of the sliding vane pump can be shortened; in addition, two end parts of the roller of the sliding vane pump are limited on the roller seat, and in the operation process of the sliding vane pump, the side wall of the roller is subjected to the pressure of a high-pressure medium, so that the middle position of the roller is easy to bend and deform, a gap is formed between the deformed roller and the inner surface of the shell, the volume loss of the sliding vane pump is increased, and the pumping efficiency of the sliding vane pump is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a roll formula gleitbretter pump rotor that pump efficiency is high, long service life.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a rolling type sliding vane pump rotor comprises a rotor body and a plurality of sliding vane bodies, wherein the rotor body is sequentially provided with a plurality of sliding grooves along the circumferential direction of the rotor body, each sliding vane body can be radially and slidably arranged in the corresponding sliding groove, the rotor further comprises a roller rotatably matched with the top of each sliding vane body, and the top of each sliding vane body is provided with an arc-shaped roller groove which is used for placing the roller and can be in sealing contact with the excircle of the roller; each sliding groove extends along the axial direction of the rotor body and penetrates through the two axial ends of the rotor body, and the axial length of the roller and the axial length of the sliding sheet body are the same as the axial length of the rotor body.
In the operation process of the sliding vane pump, in order to ensure that the roller and the sliding vane body can rapidly slide out of the sliding groove and reduce the lag problem of the radial sliding of the roller and the sliding vane body, an elastic part is further arranged between the bottom of the sliding vane body and the groove bottom of the sliding groove, and the roller on the sliding vane body is always located under the elastic action of the elastic part and has a trend towards the groove opening of the sliding groove. Under the elastic action of the elastic piece, the roller and the sliding piece body can always keep a good sealing state in the radial sliding process, and leakage in high and low pressure areas is avoided.
The elastic part is preferably a spring, the sliding groove can be a rectangular groove, and a plurality of spring installation grooves are concavely arranged at the bottom of the groove along the axial length direction; correspondingly, the sliding sheet body is the cuboid form sliding sheet body with this rectangular groove looks adaptation, and the top of cuboid form sliding sheet body direction of height is equipped with arc roller groove, the bottom is equipped with a plurality of correspondences along axial length direction the cavity of spring mounting groove makes each spring arrange in between corresponding mounting groove and the cavity, effectively fixes.
In order to avoid that under the pressure of a high-pressure medium, the roller is pressed to be dead on the arc-shaped roller groove of the sliding sheet body and cannot rotate flexibly, a plurality of first pressure relief grooves which are arranged longitudinally are arranged on the front side wall of each sliding groove, a plurality of arc-shaped pressure relief grooves are arranged on the surface of the arc-shaped roller groove of the sliding sheet body, only one end of each arc-shaped pressure relief groove extends to the front side wall of the sliding sheet body and is respectively communicated with the first pressure relief grooves correspondingly, and each arc-shaped pressure relief groove is not communicated with the rear side wall of the sliding sheet body; the outer circle of the rotor body is further provided with a plurality of pressure relief channels which are respectively communicated with the sliding grooves, the pressure relief channels are respectively correspondingly communicated with the arc-shaped pressure relief grooves on the sliding sheet bodies, and relative to the rotating direction of the rotor body, ports of the pressure relief channels are respectively positioned in front of the corresponding sliding grooves. The surface of the arc-shaped roller groove of the sliding sheet body is provided with a plurality of arc-shaped pressure relief grooves communicated with the high-pressure area, so that on one hand, the contact area between the roller and the arc-shaped roller groove of the sliding sheet body can be reduced, and the friction force between the roller and the arc-shaped roller groove can be reduced, on the other hand, a high-pressure medium can enter the arc-shaped pressure relief grooves to form upward pressure on the roller, and the upward pressure can be partially offset with the pressure on the upper side of the roller, so that the friction force between the roller and the arc-shaped roller groove of the sliding sheet body is further reduced, the roller is prevented from being pressed on the arc-shaped roller groove of the sliding sheet body, and the roller can; in addition, because each arc-shaped pressure relief groove is not communicated with the rear side wall of the slide block body, a certain sealing surface still exists between the surfaces of the arc-shaped roller grooves of the roller and the slide block body, so that high-pressure media can be effectively prevented from leaking to a low-pressure area from the arc-shaped roller grooves between the surfaces of the arc-shaped roller grooves of the roller and the slide block body.
In the operation process of the sliding vane pump, in order to introduce a high-pressure medium of a high-pressure area into the arc-shaped roller grooves of the sliding vane body, a plurality of second pressure relief grooves which are longitudinally arranged are arranged on the front side wall of the sliding vane body, and each pressure relief channel is correspondingly communicated with each arc-shaped roller groove through each second pressure relief groove. The second pressure relief groove is formed in the front side wall of the sliding sheet body, the rear side wall of the sliding sheet body can be tightly attached to the corresponding side wall of the sliding groove under the pressure action of a high-pressure medium, gapless sliding between the sliding sheet body and the sliding groove is achieved, medium leakage can be effectively avoided, volume loss is reduced, and efficiency of the sliding sheet pump is improved.
In order to facilitate processing and enable the stress of the roller to be more uniform, each arc-shaped pressure relief groove is an arc-shaped groove which is coaxial with the arc-shaped roller groove.
In order to reduce the friction force between the roller and the slide sheet body as much as possible while ensuring that the roller can realize good sealing with the arc-shaped roller groove of the slide sheet body, so that the roller can flexibly rotate in the arc-shaped roller groove, the ratio of the length of each arc-shaped pressure relief groove to the arc length of the cross section of the surface of the arc-shaped roller groove is 2/5-4/5.
In order to avoid leakage of media from the two end faces of the roller, the two end faces of the sliding sheet body or the two end faces of the rotor body and reduce volume loss of the sliding sheet pump, the two end faces of the roller and the two end faces of the sliding sheet body are flush with the two end faces of the rotor body and are in sealing contact with two axial sealing discs fixed on a shell of the sliding sheet pump respectively.
In order to avoid the gleitbretter body when reseing to the low level of slip recess, take place direct collision between the gleitbretter body and the rotor body, reduce the vibration of gleitbretter pump, be equipped with one respectively on the both ends of rotor body and be used for injecing the spacing roller that the gleitbretter body radial movement just can rotate along with the rotor body, these two spacing rollers and the coaxial setting of rotor body correspond respectively on the lateral wall of two axial sealed dish and are equipped with the ring channel that is used for settling the spacing roller that corresponds.
In order to reduce the dead weight of the roller and enable the radial sliding of the roller to be more flexible, the roller is a hollow cylinder with two sealed ends.
Compared with the prior art, the utility model has the advantages that: the axial length of the roller of the sliding vane pump rotor and the axial length of the sliding vane body are the same as the axial length of the rotor body, so that when the sliding vane pump runs, good sealing can be realized between the roller in the arc-shaped roller groove at the top of the sliding vane body and the inner surface of the shell, no gap exists between the roller and the inner surface, the volume loss caused by adopting parts such as a roller seat and the like in the prior art is effectively avoided, and the efficiency of the sliding vane pump is greatly improved; secondly, the roller is rotatably matched in the arc-shaped roller groove at the top of the sliding piece body, wherein the roller can flexibly roll in the arc-shaped roller groove, and because the two end parts of the roller are not fixed, the roller is always in sealing contact with the inner surface of the arc-shaped roller groove as a whole, the roller is not deformed under the high pressure of a medium in the reciprocating operation process, and the volume loss between the roller and the inner surface of the shell due to the deformation of the roller is avoided; furthermore, the roller of the sliding vane pump rotor is rotationally matched in the arc-shaped roller groove of the sliding vane body as a whole, and the use of connecting parts such as a bearing is avoided, so that the sliding vane pump rotor does not need to frequently replace the parts such as the bearing, has long service life and can effectively convey media containing impurity particles.
Drawings
Fig. 1 is a schematic structural view of a rolling vane pump rotor (including an axial sealing disk) according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is an axial cross-sectional view of a rotor body according to an embodiment of the present invention;
fig. 4 is a partial cross-sectional view of a rotor body according to an embodiment of the present invention;
fig. 5 is a front view of a slider body according to an embodiment of the present invention;
fig. 6 is a top view of the slider body according to an embodiment of the present invention;
FIG. 7 is a sectional view taken along line A-A of FIG. 5;
FIG. 8 is a schematic structural view of an axial sealing disk according to an embodiment of the present invention;
fig. 9 is a cross-sectional view of an axial sealing disk in accordance with an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Referring to fig. 1 to 9, the rolling type sliding vane pump rotor includes a rotor body 10, a plurality of sliding vane bodies 20 and a plurality of rollers 40, the rotor body 10 is sequentially provided with a plurality of sliding grooves 30 along a circumferential direction thereof, the sliding vane bodies 20 are provided with a plurality of sliding vane bodies 20, each sliding vane body 20 is radially slidably provided in the corresponding sliding groove 30, the plurality of rollers 40 are also provided and respectively correspond to each sliding vane body 20 one by one, specifically, each roller 40 is rotatably fitted on a top of each sliding vane body 20, wherein the top of the sliding vane body 20 is provided with an arc-shaped roller groove 21 for accommodating the roller 40 and capable of sealing-contacting with an outer circle of the roller 40, in this embodiment, the size of the arc-shaped roller groove 21 is adapted to the size of the roller 40, so that the roller 40 can flexibly rotate in the arc-shaped roller groove 21 and realize good sealing-contact, specifically, the diameter of the roller 40 is consistent with the thickness of the sliding vane body 20 and the width of the sliding groove, so that the roller 40 can be exposed out of the sliding groove 30 and smoothly accommodated in the sliding groove 30 in the process of reciprocating in the radial direction with the vane body 20.
In this embodiment, during operation of the sliding vane pump, under the action of centrifugal force, the rollers 40 can slide out of the sliding grooves 30 along with the sliding vane body 20 along the radial direction of the rotor, and make line contact with the inner surface of the outer casing, wherein, along with the rotation of the rotor body 10, the rollers 40 roll on their own axes under the action of the friction force of the inner surface of the casing. The middle part of the rotor body 10 is further provided with a driving hole 13 which can be connected with an external driving shaft (not shown) in a sleeved mode, when the rotor body 10 rotates along with the driving shaft, an eccentric circle can be formed by the inner surface of a shell (not shown) of the sliding vane pump and the central shaft of the rotor body 10, and in the operation process of the sliding vane pump, the volume of the sliding vane body 20 is changed from suction to discharge in a reciprocating stroke, so that the suction and discharge processes of fluid media are achieved.
Referring to fig. 1, in the present embodiment, each sliding groove 30 extends in the axial direction of the rotor body 10 and penetrates to both ends of the rotor body 10 in the axial direction, and the axial length of the roller 40 and the axial length of the vane body 20 are both the same as the axial length of the rotor body 10, that is, both end surfaces of the roller 40 and both end surfaces of the vane body 20 are flush with both end surfaces of the rotor body 10 and are in sealing contact with two axial sealing discs 60 fixed on the casing of the vane pump, respectively, and this structural arrangement can effectively prevent the media from leaking from both end surfaces of the roller 40, both end surfaces of the vane body 20, or both end surfaces of the rotor body 10, and reduce the volume loss of the vane pump. In order to reduce the dead weight of the roller 40 and to make the radial sliding of the roller 40 more flexible, the roller 40 is a hollow cylinder with two closed ends, in particular, the two ends of the roller 40 can be sealed by corresponding plugs, wherein the two ends of the roller 40 are plugged into the two plugs to form a flat end surface, as shown in detail in fig. 1.
Because the axial length of the roller 40 and the axial length of the sliding vane body 20 are the same as the axial length of the rotor body 10, when the sliding vane pump operates, the roller 40 matched in the arc-shaped roller groove 21 at the top of the sliding vane body 20 and the inner surface of the shell can realize good sealing, and no gap exists between the roller 40 and the inner surface of the shell, thereby effectively avoiding the volume loss caused by adopting roller seats and other parts in the prior art and greatly improving the efficiency of the sliding vane pump; secondly, the roller 40 is rotatably matched in the arc-shaped roller groove 21 at the top of the slide body 20, wherein the roller 40 can flexibly roll in the arc-shaped roller groove 21, and because the two end parts of the roller 40 are not fixed, the roller 40 is in sealing contact with the inner surface of the arc-shaped roller groove 21 as a whole, so that the roller 40 is not deformed under the high pressure of a medium during the reciprocating operation, and the roller 40 and the inner surface of the shell are not deformed to cause volume loss; furthermore, the roller 40 of the sliding vane pump rotor is rotationally matched in the arc-shaped roller groove 21 of the sliding vane body 20 as a whole, which avoids using connecting parts such as bearings, so the sliding vane pump rotor does not need to frequently replace the parts such as the bearings, has long service life, and can effectively convey media containing impurity particles.
Referring to fig. 1, 3 and 7, in order to ensure that the roller 40 and the sliding vane body 20 can slide out of the sliding groove 30 quickly and reduce the hysteresis problem of the radial sliding of the roller 40 and the sliding vane body 20 during the operation of the sliding vane pump, an elastic member 50 is further arranged between the bottom of the sliding vane body 20 and the bottom of the sliding groove 30, and under the elastic force of the elastic member 50, the roller 40 arranged on the sliding vane body 20 always has a tendency of moving towards the notch of the sliding groove 30, the elastic member 50 in the embodiment is preferably a spring, the sliding groove 30 can be a rectangular groove, and a plurality of spring installation grooves 11 are concavely arranged on the bottom of the groove along the axial length direction; correspondingly, the gleitbretter body 20 is the cuboid form gleitbretter body with this rectangle groove looks adaptation, and the top of cuboid form gleitbretter body direction of height is equipped with arc roller groove 21, the bottom is equipped with a plurality of correspondences along axial length direction the cavity 24 of spring mounting groove 11 makes each spring arrange in between corresponding spring mounting groove 11 and the cavity 24, effectively fixes. In addition, under the elastic force of the elastic element 50, the roller 40 and the sliding body 20 can always maintain a good sealing state in the radial sliding process, and leakage in high and low pressure areas is avoided.
Referring to fig. 2-7, in order to avoid the roller 40 from being pressed against the arc-shaped roller groove 21 of the sliding vane body 20 under the pressure of the high-pressure medium and being unable to rotate flexibly, in the present embodiment, a plurality of first pressure relief grooves 31 are longitudinally formed on the front side wall of each sliding groove 30, a plurality of arc-shaped pressure relief grooves 22 are formed on the surface of the arc-shaped roller groove 21 of the sliding vane body 20, only one end of each arc-shaped pressure relief groove 22 extends to the front side wall of the sliding vane body 20 and is respectively communicated with each first pressure relief groove 31, and each arc-shaped pressure relief groove 22 is not communicated with the rear side wall of the sliding vane body 20. The outer circle of the rotor body 10 is further provided with a plurality of pressure relief channels 12 respectively penetrating into the sliding grooves 30, each pressure relief channel 12 is correspondingly communicated with the arc-shaped pressure relief groove 22 on each sliding sheet body 20, specifically, in the rotating direction relative to the rotor body 10, the port of each pressure relief channel 12 is located at the front position of the corresponding sliding groove 30, wherein the "front and rear" directions are relative to the rotating direction of the rotor body 10, and are shown in the direction of the arrow in fig. 2 in detail.
With continued reference to fig. 2 to 7, in order to introduce the high-pressure medium in the high-pressure region into the arc-shaped roller groove 21 of the sliding vane body 20, with respect to the rotation direction of the rotor body 10, a plurality of second pressure relief grooves 23 are longitudinally arranged on the front side wall of the sliding vane body 20, and each pressure relief channel 12 is correspondingly communicated with each arc-shaped roller groove 21 through each second pressure relief groove 23, so that, during the operation of the sliding vane pump, the fluid medium in the high-pressure region can enter the sliding groove 30 through the pressure relief channel 12, and then enter the arc-shaped pressure relief groove 22 at the top of the sliding vane body 20 and the first pressure relief groove 31 on the front side wall of the sliding groove 30 through the second pressure relief groove 23. The second pressure relief groove 23 is arranged on the front side wall of the sliding vane body 20, and under the pressure action of a high-pressure medium, the rear side wall of the sliding vane body 20 can be tightly attached to the corresponding side wall of the sliding groove 30, so that gapless sliding between the sliding vane body 20 and the sliding groove 30 is realized, medium leakage can be effectively avoided, volume loss is reduced, and the efficiency of the sliding vane pump is improved; similarly, the first pressure relief groove 31 is formed in the front side wall of the sliding groove 30, and the rear side wall of the roller 40 can be closely attached to the corresponding side wall of the sliding groove 30 under the pressure of the high-pressure medium, so that the line seal between the roller 40 and the rear side wall of the sliding groove 30 is realized.
A plurality of arc-shaped pressure relief grooves 22 communicated with a high-pressure area are formed in the surface of the arc-shaped roller groove 21 of the slide block body 20, so that on one hand, the contact area between the roller 40 and the arc-shaped roller groove 21 of the slide block body 20 can be reduced, and the friction force between the roller 40 and the arc-shaped roller groove 21 of the slide block body 20 can be reduced, on the other hand, a high-pressure medium can enter the arc-shaped pressure relief grooves 22 to form upward pressure on the roller 40, the upward pressure can be partially offset with the pressure on the upper side of the roller 40, so that the friction force between the roller 40 and the arc-shaped roller groove 21 of the slide block body 20 is further reduced, the roller 40 is prevented from being pressed on the arc-shaped roller groove 21 of the slide block body 20; in addition, since each arc-shaped pressure relief groove 22 is not communicated with the rear side wall of the slider body 20, a certain sealing surface still exists between the roller 40 and the surface of the arc-shaped roller groove 21 of the slider body 20, so that the leakage of high-pressure medium from the arc-shaped roller groove 21 between the roller 40 and the surface of the arc-shaped roller groove 21 of the slider body 20 to a low-pressure area can be effectively avoided.
Referring to fig. 5 to 7, for convenience of processing and making the stress of the roller 40 more uniform, each of the arc-shaped pressure relief grooves 22 is an arc-shaped groove arranged coaxially with the arc-shaped roller groove 21, specifically, the ratio of the length of each of the arc-shaped pressure relief grooves 22 to the arc length of the cross section of the surface of the arc-shaped roller groove 21 may be 2/5-4/5, in this embodiment, the ratio of the length of each of the arc-shaped pressure relief grooves 22 to the arc length of the cross section of the surface of the arc-shaped roller groove 21 is preferably 3/5, so as to ensure that the roller 40 can achieve good sealing with the arc-shaped roller groove 21 of the slider body 20, and at the same time, the friction between the roller 40 and the slider body 20.
Referring to fig. 1, 8 and 9, in order to avoid direct collision between the sliding vane body 20 and the rotor body 10 when the sliding vane body 20 is reset to the low position of the sliding groove 30, and further reduce vibration of the sliding vane pump, two end portions of the rotor body 10 are respectively provided with a limiting roller 61 for limiting radial movement of the sliding vane body 20 and capable of rotating along with the rotor body 10, the two limiting rollers 61 are coaxially arranged with the rotor body 10, the side walls of the two axial sealing discs 60 are respectively and correspondingly provided with an annular groove 62 for accommodating the corresponding limiting roller 61, the annular groove 62 is in clearance fit with the limiting roller 61, the limiting roller 61 can slidably rotate relative to the annular groove 62, the limiting roller 61 can be driven to rotatably slide when the sliding vane body 20 rotates along with the rotor body 10, and the limiting roller 61 is made of an abrasion-resistant material. Specifically, two end portions of the rotor body 10 are respectively provided with a limiting groove 14 into which the end portion of the limiting roller 61 extends, the limiting grooves 14 are communicated with the sliding grooves 30, and when the sliding vane body 20 is reset to the lower position of the sliding groove 30, the circular step at the bottom of the sliding vane body 20 can be in contact with the outer peripheral wall of the limiting roller 61 to limit the inward sliding displacement of the sliding vane body 20.
Claims (10)
1. The utility model provides a roll formula gleitbretter pump rotor, includes rotor body (10) and a plurality of slide block body (20), a plurality of slip recesses (30), each have been seted up in proper order along its circumference in rotor body (10) slide block body (20) homoenergetic is slided and is located the correspondence radially in slip recess (30), its characterized in that: the roller type sliding block is characterized by further comprising rollers (40) which are rotatably matched with the tops of the sliding block bodies (20), wherein arc-shaped roller grooves (21) which are used for placing the rollers (40) and can be in sealing contact with the outer circles of the rollers (40) are formed in the tops of the sliding block bodies (20);
each sliding groove (30) extends along the axial direction of the rotor body (10) and penetrates through two axial ends of the rotor body (10), and the axial length of the roller (40) and the axial length of the sliding sheet body (20) are the same as the axial length of the rotor body (10).
2. The rolling sliding-vane pump rotor according to claim 1, characterized in that: an elastic piece (50) is further arranged between the bottom of the sliding piece body (20) and the bottom of the sliding groove (30), and under the elastic action of the elastic piece (50), the roller (40) arranged on the sliding piece body (20) always has a trend of moving towards the notch side of the sliding groove (30).
3. The rolling sliding-vane pump rotor according to claim 2, characterized in that: the elastic piece (50) is a spring;
the sliding groove (30) is a rectangular groove, and a plurality of spring mounting grooves (11) are concavely arranged at the bottom of the groove along the axial length direction; correspondingly, slide body (20) are the cuboid form slide body with this rectangular groove looks adaptation, and the top of cuboid form slide body direction of height be equipped with arc roller groove (21), the bottom is equipped with a plurality of correspondences along axial length direction cavity (24) of spring mounting groove (11).
4. The rolling sliding-vane pump rotor according to claim 1, characterized in that: a plurality of first pressure relief grooves (31) which are longitudinally arranged are formed in the front side wall of each sliding groove (30), a plurality of arc pressure relief grooves (22) are formed in the surface of the arc roller groove (21) of the sliding sheet body (20), only one end of each arc pressure relief groove (22) extends to the front side wall of the sliding sheet body (20) and is correspondingly communicated with the first pressure relief grooves (31), and each arc pressure relief groove (22) is not communicated with the rear side wall of the sliding sheet body (20);
the outer circle of the rotor body (10) is further provided with a plurality of pressure relief channels (12) which penetrate through the sliding grooves (30) respectively, the pressure relief channels (12) are communicated with the arc-shaped pressure relief grooves (22) on the sliding piece bodies (20) correspondingly respectively, and ports of the pressure relief channels (12) are located in front of the corresponding sliding grooves (30) respectively relative to the rotating direction of the rotor body (10).
5. The rolling sliding-vane pump rotor of claim 4, wherein: a plurality of second pressure relief grooves (23) which are longitudinally arranged are formed in the front side wall of the sliding piece body (20), and the pressure relief channels (12) are correspondingly communicated with the arc-shaped roller grooves (21) through the second pressure relief grooves (23).
6. The rolling sliding-vane pump rotor of claim 5, wherein: each arc-shaped pressure relief groove (22) is an arc-shaped groove which is coaxial with the arc-shaped roller groove (21).
7. The rolling sliding-vane pump rotor of claim 6, wherein: the ratio of the length of each arc-shaped pressure relief groove (22) to the arc length of the cross section of the surface of the arc-shaped roller groove (21) is 2/5-4/5.
8. The rolling sliding-vane pump rotor according to claim 1, characterized in that: the two end faces of the roller (40) and the two end faces of the sliding sheet body (20) are flush with the two end faces of the rotor body (10) and are in sealing contact with two axial sealing discs (60) fixed on a shell of the sliding sheet pump respectively.
9. The rolling sliding-vane pump rotor of claim 8, wherein: be equipped with one respectively on the both ends of rotor body (10) and be used for injecing slide block body (20) radial movement and can be along with rotor body (10) spacing roller (61) of rotating together, these two spacing roller (61) and rotor body (10) coaxial setting, correspond respectively on the lateral wall of two axial seal dish (60) and be equipped with annular groove (62) that are used for settling corresponding spacing roller (61).
10. A rolling sliding vane pump rotor as claimed in any one of claims 1 to 9, wherein: the roller (40) is a hollow cylinder with two closed ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920947613.4U CN210068472U (en) | 2019-06-21 | 2019-06-21 | Rolling type sliding vane pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920947613.4U CN210068472U (en) | 2019-06-21 | 2019-06-21 | Rolling type sliding vane pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068472U true CN210068472U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920947613.4U Withdrawn - After Issue CN210068472U (en) | 2019-06-21 | 2019-06-21 | Rolling type sliding vane pump rotor |
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| Country | Link |
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| CN (1) | CN210068472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131161A (en) * | 2019-06-21 | 2019-08-16 | 宁波合力机泵股份有限公司 | A kind of roller slide plate pump rotor |
| CN111365229A (en) * | 2020-04-21 | 2020-07-03 | 石丹丹 | Controllable blade hydraulic device utilizing hydraulic overflow principle |
| CN110131161B (en) * | 2019-06-21 | 2024-07-30 | 宁波合力机泵股份有限公司 | Rolling type sliding vane pump rotor |
-
2019
- 2019-06-21 CN CN201920947613.4U patent/CN210068472U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131161A (en) * | 2019-06-21 | 2019-08-16 | 宁波合力机泵股份有限公司 | A kind of roller slide plate pump rotor |
| CN110131161B (en) * | 2019-06-21 | 2024-07-30 | 宁波合力机泵股份有限公司 | Rolling type sliding vane pump rotor |
| CN111365229A (en) * | 2020-04-21 | 2020-07-03 | 石丹丹 | Controllable blade hydraulic device utilizing hydraulic overflow principle |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20240730 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20240730 |