Gear pump filling piece, gear pump, suspension assembly and vehicle

Abstract

The embodiment of the invention provides a gear pump filling piece, a gear pump, a suspension assembly and a vehicle. The gear pump filling piece comprises a first crescent plate, the first crescent plate comprises a first connecting part, a first main crescent plate used for abutting against the outer side of a gear and a first auxiliary crescent plate used for abutting against the inner side of a gear ring, and the first connecting part is arranged between the first main crescent plate and the first auxiliary crescent plate; through the arrangement of the first connecting part, the first main crescent plate and the first auxiliary crescent plate, the stress of the first crescent plate is effectively balanced, the pressure of the contact surface of the first auxiliary crescent plate and the gear ring is remarkably reduced, and the risk that the first auxiliary crescent plate is abraded is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gear pumps, and more specifically, to a gear pump filler, a gear pump, a suspension assembly and a vehicle. Background Art

[0002] In the prior art, a filling piece is generally provided between the gear and the gear ring of an internal gear pump, and the filling piece is used to separate the chamber between the gear and the gear ring into a high-pressure chamber and a low-pressure chamber to ensure that the fluid in the internal gear pump flows in a predetermined direction. However, when the pressure in the high-pressure chamber of the internal gear pump is high, the filling piece is subjected to unbalanced force, and the part of the filling piece close to the gear ring is easily squeezed to the gear ring, resulting in an increase in the contact area between the part of the filling piece close to the gear ring and the gear ring, thereby increasing the risk of the filling piece being worn.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0004] An object of the present invention is to provide a new technical solution for a gear pump filler, a gear pump, a suspension assembly and a vehicle.

[0005] According to a first aspect of the present invention, there is provided a gear pump filling piece for filling between a gear ring and a gear meshed with the gear ring, wherein the gear pump filling piece comprises a first crescent plate:

[0006] The first crescent plate includes a first connecting portion, a first main crescent plate for abutting against the outer side of the gear, and a first auxiliary crescent plate for abutting against the inner side of the gear ring, and the first connecting portion is arranged between the first main crescent plate and the first auxiliary crescent plate.

[0007] Optionally, a second crescent plate is also included;

[0008] The second crescent plate comprises a second connecting portion, a second main crescent plate for abutting against the outer side of the gear, and a second auxiliary crescent plate for abutting against the inner side of the gear ring, and the second connecting portion is arranged between the second main crescent plate and the second auxiliary crescent plate;

[0009] The first connecting portion is rotatably matched with the second connecting portion;

[0010] The first crescent plate and the second crescent plate are arranged alternately.

[0011] Optionally, a first groove is provided between the first main crescent plate and the second auxiliary crescent plate;

[0012] The gear pump filler also includes a first elastic member and a first sealing member. The first elastic member is arranged in the first groove. The first elastic member can make the first sealing member abut against the first main crescent plate and the second secondary crescent plate respectively to seal the first gap between the first main crescent plate and the second secondary crescent plate.

[0013] Optionally, a second groove is provided between the second main crescent plate and the first auxiliary crescent plate;

[0014] The gear pump filler also includes a second elastic member and a second sealing member, wherein the second elastic member is arranged in the second groove, and the second elastic member can make the second sealing member abut against the second main crescent plate and the first secondary crescent plate respectively to seal the second gap between the second main crescent plate and the first secondary crescent plate.

[0015] Optionally, the first connecting portion includes a first rotating portion and a first extending portion, and a size of the first rotating portion along the first direction is smaller than a size of the first extending portion along the first direction;

[0016] The second connecting portion includes a second rotating portion and a second extending portion, and a size of the second rotating portion along the first direction is equal to a size of the second extending portion along the first direction;

[0017] The first rotating part is rotationally matched with the second rotating part.

[0018] Optionally, the first rotating portion includes a first circular protrusion, the second rotating portion includes a first belt-shaped groove, and the first circular protrusion is rotatably matched with the first belt-shaped groove;

[0019] Alternatively, the first rotating portion includes a second band-shaped groove, the second rotating portion includes a second circular protrusion, and the second circular protrusion is rotationally matched with the second band-shaped groove.

[0020] Optionally, the dimension of the first extension portion along the first direction is smaller than the dimension of the first auxiliary crescent plate along the first direction;

[0021] And / or, a dimension of the second extending portion along the first direction is smaller than a dimension of the second auxiliary crescent plate along the first direction.

[0022] Optionally, there is a third gap between the first connecting portion and the second connecting portion;

[0023] The size of the third gap can be reduced to zero according to the rotation of the first connecting part and the second connecting part.

[0024] Optionally, the first connecting portion includes a first extending portion, and the first extending portion is arranged on a side of the first secondary crescent plate close to the first main crescent plate;

[0025] The second connecting portion includes a second extending portion, and the second extending portion is arranged on a side of the second secondary crescent plate close to the second main crescent plate;

[0026] The third gap is defined between the first extension portion and the second extension portion.

[0027] Optionally, the first connection portion includes a first connection hole, and the second connection portion includes a second connection hole;

[0028] The gear pump filling piece further includes a rotating pin, one end of which is rotatably disposed in the first connecting hole, and the other end of which is rotatably disposed in the second connecting hole.

[0029] Optionally, an end surface of the first main crescent plate facing away from the first auxiliary crescent plate and an end surface of the second auxiliary crescent plate facing away from the second main crescent plate are located in the same plane;

[0030] And / or, an end surface of one end of the first secondary crescent plate facing away from the first main crescent plate and an end surface of one end of the second main crescent plate facing away from the second secondary crescent plate are located in the same plane.

[0031] Optionally, the first crescent plate further comprises a first tilting structure, the first tilting structure is arranged at one end of the first main crescent plate away from the first auxiliary crescent plate, the first tilting structure and the first main crescent plate can enclose a first accommodating area, and the first accommodating area is used to accommodate the second auxiliary crescent plate;

[0032] And / or, the second crescent plate further includes a second tilting structure, the second tilting structure is arranged at an end of the second main crescent plate away from the second secondary crescent plate, the second tilting structure can enclose a second accommodating area with the second main crescent plate, and the second accommodating area is used to accommodate the first secondary crescent plate.

[0033] According to a second aspect of the present invention, a gear pump is provided, comprising a gear, a gear ring and a gear pump filler as described in any one of the first aspects, the gear being internally meshed with the gear ring, one end of the gear pump filler abutting against the gear, and the other end of the gear pump filler abutting against the gear ring.

[0034] Optionally, the gear pump further comprises a first fluid chamber and a second fluid chamber, wherein the first fluid chamber is arranged between the gear and the gear pump filling piece, and the second fluid chamber is arranged between the gear ring and the gear pump filling piece.

[0035] According to a third aspect of the present invention, there is provided a suspension assembly comprising a gear pump as described in any one of the second aspects.

[0036] According to a fourth aspect of the present invention, a vehicle is provided, comprising the suspension assembly as described in the third aspect.

[0037] According to an embodiment of the present invention, a gear pump filling piece is provided, the gear pump filling piece includes a first crescent plate, the first crescent plate includes a first connecting portion, a first main crescent plate for abutting on the outer side of the gear, and a first auxiliary crescent plate for abutting on the inner side of the gear ring, the first connecting portion is arranged between the first main crescent plate and the first auxiliary crescent plate; through the arrangement of the first connecting portion, the first main crescent plate and the first auxiliary crescent plate, the force on the first crescent plate is effectively balanced, the pressure on the contact surface between the first auxiliary crescent plate and the gear ring is significantly reduced, and the risk of the first auxiliary crescent plate being worn is reduced.

[0038] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0040] Figure 1 It is a front view of a gear pump in one embodiment of the present invention.

[0041] Figure 2 1 is a rear view of a gear pump according to an embodiment of the present invention.

[0042] Figure 3 1 is a top view of the first crescent plate in one embodiment of the present invention.

[0043] Figure 4 It is a front view of the first crescent plate in one embodiment of the present invention.

[0044] Figure 5 1 is a top view of the second crescent plate in one embodiment of the present invention.

[0045] Figure 6 It is a front view of the second crescent plate in one embodiment of the present invention.

[0046] Figure 7 It is a front view of a gear pump in another embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1. first crescent plate; 101. first main crescent plate; 1011. first groove; 102. first connecting portion; 1021. first rotating portion; 10211. first circular protrusion; 1022. first extending portion; 103. first auxiliary crescent plate; 104. first warping structure;

[0049] 2. second crescent plate; 201. second main crescent plate; 2011. second groove; 202. second connecting portion; 2021. second rotating portion; 20211. first belt-shaped groove; 2022. second extending portion; 203. second auxiliary crescent plate; 204. second warping structure;

[0050] 3. The first gap;

[0051] 4. Second gap;

[0052] 5. a first elastic member;

[0053] 6. The first sealing member;

[0054] 7. A second elastic member;

[0055] 8. Second sealing member;

[0056] 9. Gears;

[0057] 10. Ring gear;

[0058] 11. A first fluid chamber;

[0059] 12. A second fluid chamber;

[0060] 13. First chamber;

[0061] 14. Second chamber;

[0062] 15. Drive shaft;

[0063] 16. The third gap;

[0064] 17. The first accommodation area;

[0065] 18. The second accommodation area. DETAILED DESCRIPTION

[0066] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0067] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0068] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0071] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0072] According to one embodiment of the present application, a gear pump filler is provided. Figures 1 to 7 The gear pump filling piece is used to fill between the ring gear 10 and the gear 9 meshed with the ring gear 10. The gear pump filling piece includes a first crescent plate 1, and the first crescent plate 1 includes a first connecting portion 102, a first main crescent plate 101 for abutting against the outer side of the gear 9, and a first auxiliary crescent plate 103 for abutting against the inner side of the ring gear 10. The first connecting portion 102 is arranged between the first main crescent plate 101 and the first auxiliary crescent plate 103.

[0073] Specifically, Figure 1 and Figure 2As shown, the gear pump of the embodiment of the present application includes a gear ring 10 and a gear 9 meshed with the gear ring 10, and the first crescent plate 1 is filled between the gear ring 10 and the gear 9 meshed with the gear ring 10, that is, the first main crescent plate 101 abuts against the outer side of the gear 9, and the first auxiliary crescent plate 103 abuts against the inner side of the gear ring 10, so as to separate the fluid space between the gear ring 10 and the gear 9 into a first fluid chamber 11 enclosed by the first crescent plate 1 and the gear 9 and a second fluid chamber 12 enclosed by the first crescent plate 1 and the gear ring 10. The first crescent plate 1 includes a first connecting portion 102, and the first connecting portion 102 can connect the first main crescent plate 101 for abutting against the outer side of the gear 9 and the first auxiliary crescent plate 103 for abutting against the inner side of the gear ring 10.

[0074] Thus, when the hydraulic oil in the first fluid chamber 11 squeezes the first secondary crescent plate 103 to the gear ring 10, the first connecting portion 102 connecting the first secondary crescent plate 103 and the first main crescent plate 101 can transmit the pressure exerted on the first secondary crescent plate 103 to the first main crescent plate 101, so that the first main crescent plate 101 can move toward the gear 9, thereby effectively reducing the contact area between the first secondary crescent plate 103 and the gear ring 10, and significantly reducing the risk of wear of the first secondary crescent plate 103.

[0075] In one embodiment, the gear pump filler also includes a second crescent plate 2, the second crescent plate 2 includes a second connecting portion 202, a second main crescent plate 201 and a second auxiliary crescent plate 203, the second connecting portion 202 is arranged between the second main crescent plate 201 and the second auxiliary crescent plate 203; the first connecting portion 102 and the second connecting portion 202 are rotatably matched; the first crescent plate 1 and the second crescent plate 2 are staggered.

[0076] Specifically, Figures 1 to 6 As shown, since the first crescent plate 1 and the second crescent plate 2 are staggered in the embodiment of the application, that is, the first main crescent plate 101 and the second auxiliary crescent plate 203 are spaced apart in the radial direction, and the second main crescent plate 201 and the first auxiliary crescent plate 103 are spaced apart in the radial direction, after the first connecting portion 102 and the second connecting portion 202 are rotatably connected, the first main crescent plate 101 and the second main crescent plate 201 can abut against the outer side of the gear 9, and the first auxiliary crescent plate 103 and the second auxiliary crescent plate 203 can abut against the inner side of the ring gear 10, so as to separate the fluid space between the gear 9 and the ring gear 10 into a first fluid chamber 11 enclosed by the gear pump filler and the gear 9 and a second fluid chamber 12 enclosed by the gear pump filler and the ring gear 10.

[0077] The gear 9 further includes a driving shaft 15 , which is connected to a motor. The motor can drive the driving shaft 15 to drive the gear 9 to rotate clockwise or counterclockwise.

[0078] Thus, if Figure 1 and Figure 2 As shown, when the motor drives the gear 9 to rotate counterclockwise, the chamber between the gear 9 and the gear ring 10 is further divided into a first chamber 13 and a second chamber 14, wherein the first chamber 13 is a low-pressure chamber, and the second chamber 14 is a high-pressure chamber, and hydraulic oil is provided in both the first chamber 13 and the second chamber 14. Of course, fluids such as lubricating oil, engine oil, water or water-based liquids may also be provided in the first chamber 13 and the second chamber 14, and those skilled in the art may make a selection according to actual needs, and this application does not impose any specific restrictions here.

[0079] At this time, since the gear pump filler is also provided between the gear 9 and the gear ring 10, the first chamber 13 is also divided by the gear pump filler into a first fluid chamber 11 enclosed by the gear pump filler and the gear 9 and a second fluid chamber 12 enclosed by the gear pump filler and the gear ring 10. Furthermore, since the motor drives the gear 9 to rotate continuously counterclockwise, the hydraulic oil in the first fluid chamber 11 and the hydraulic oil in the second fluid chamber 12 can flow into the high-pressure second chamber 14, and then flow out of the second chamber 14 by the meshing of the gear 9 and the gear ring 10.

[0080] However, since there is a second gap 4 between the second main crescent plate 201 and the first auxiliary crescent plate 103, when the hydraulic oil in the first chamber 13 flows into the second chamber 14, hydraulic oil will also enter the second gap 4 to fill the second gap 4, and the hydraulic oil can also apply a force to the first main crescent plate 101 to move in the direction of the gear 9 and apply a force to the second auxiliary crescent plate 203 to move in the direction of the ring gear 10, so that the contact area between the second auxiliary crescent plate 203 and the ring gear 10 gradually increases, thereby increasing the risk of wear of the second auxiliary crescent plate 203.

[0081] Furthermore, in the embodiment of the present application, the first crescent plate 1 and the second crescent plate 2 are staggered so that there is a first gap 3 between the first main crescent plate 101 and the second secondary crescent plate 203. Therefore, when the first main crescent plate 101 moves toward the gear 9 and the second secondary crescent plate 203 moves toward the gear ring 10, due to the rotational cooperation between the first connecting portion 102 and the second connecting portion 202, the second main crescent plate 201 can also move toward the gear 9, and the first secondary crescent plate 103 can also move toward the gear ring 10, so that the extrusion force exerted on the first main crescent plate 101 and the second secondary crescent plate 203 can be transmitted to the second main crescent plate 201 and the first secondary crescent plate 103, that is, the size of the first gap 3 gradually increases with the size of the second gap 4, thereby effectively reducing the contact area between the second secondary crescent plate 203 and the gear ring 10, and significantly reducing the risk of the second secondary crescent plate 203 being worn.

[0082] In addition, if Figure 1 and Figure 2 As shown, when the motor drives the gear 9 to rotate clockwise, the first chamber 13 is a high-pressure chamber and the second chamber 14 is a low-pressure chamber, so that the hydraulic oil first applies a force to the second main crescent plate 201 to move in the direction of the gear 9 and applies a force to the first auxiliary crescent plate 103 to move in the direction of the gear ring 10, so that the contact area between the first auxiliary crescent plate 103 and the gear ring 10 gradually increases, and then, the first connecting part 102 and the second connecting part 202 are rotated to cooperate, so that the extrusion force exerted on the second main crescent plate 201 and the first auxiliary crescent plate 103 can be transmitted to the first main crescent plate 101 and the second auxiliary crescent plate 203, that is, the size of the second gap 4 gradually increases with the size of the first gap 3, effectively reducing the contact area between the first auxiliary crescent plate 103 and the gear ring 10, and significantly reducing the risk of wear of the first auxiliary crescent plate 103.

[0083] In addition, since the first crescent plate 1 and the second crescent plate 2 of the gear pump filler described in the embodiment of the present application are split structures, when faced with different pressures generated by the hydraulic oil in the low-pressure chamber and the hydraulic oil in the high-pressure chamber, the part of the gear pump filler in the low-pressure chamber will not only not warp up under the pressure of the hydraulic oil in the high-pressure chamber, but will also fit more closely to the gear 9, thereby further improving the internal sealing effect of the internal gear pump.

[0084] In one embodiment, a first groove 1011 is provided between the first main crescent plate 101 and the second secondary crescent plate 203; the gear pump filler also includes a first elastic member 5 and a first sealing member 6, the first elastic member 5 is provided in the first groove 1011, and the first elastic member 5 can make the first sealing member 6 abut against the first main crescent plate 101 and the second secondary crescent plate 203 respectively to seal the first gap 3 between the first main crescent plate 101 and the second secondary crescent plate 203.

[0085] Specifically, Figure 3 and Figure 4 As shown, in the embodiment of the present application, the abutting surfaces of the first main crescent plate 101 and the second secondary crescent plate 203 are provided with a first groove 1011, and the first elastic member 5 can be fixed in the first groove 1011, so that when the first sealing member 6 is arranged between the first elastic member 5 and the second secondary crescent plate 203, the first elastic member 5 can apply a force to the first sealing member 6 to move the second secondary crescent plate 203, that is, the first sealing member 6 abuts against the first main crescent plate 101 and the second secondary crescent plate 203 respectively to seal the first gap 3 between the first main crescent plate 101 and the second secondary crescent plate 203, thereby effectively isolating the oil in the second chamber 14 from entering the rotational cooperation between the first crescent plate 1 and the second crescent plate 2 from the first gap 3, thereby causing the rotational cooperation between the first crescent plate 1 and the second crescent plate 2 to fail, significantly improving the stability and reliability of the gear pump filling member, and extending the service life of the gear pump filling member.

[0086] Among them, in the embodiment of the present application, the first groove 1011 can be a triangular groove, a rectangular groove or a trapezoidal groove, etc., and the first elastic member 5 can be a spring, a reed or a rubber pad, etc. Technical personnel in this field can choose according to actual needs, and this application does not make any specific restrictions here.

[0087] In addition, in the embodiment of the present application, the first sealing member 6 can be a cylindrical sealing rod or an irregular cylindrical sealing rod. Of course, under the condition that the sealing between the first main crescent plate 101 and the second secondary crescent plate 203 is met, the first sealing member 6 can also be a prismatic sealing rod or an irregular prismatic sealing rod, etc., and technicians in this field can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0088] In addition, in the embodiment of the present application, the connection between the first elastic member 5 and the first sealing member 6, and the connection between the first elastic member 5 and the second secondary crescent plate 203 can be bonding or welding, etc., and technicians in this field can choose according to actual needs, and the present application does not make any specific restrictions here.

[0089] In one embodiment, a second groove 2011 is provided between the second main crescent plate 201 and the first secondary crescent plate 103; the gear pump filler also includes a second elastic member 7 and a second sealing member 8, the second elastic member 7 is provided in the second groove 2011, and the second elastic member 7 can make the second sealing member 8 abut against the second main crescent plate 201 and the first secondary crescent plate 103 respectively to seal the second gap 4 between the second main crescent plate 201 and the first secondary crescent plate 103.

[0090] Specifically, Figure 5 and Figure 6 As shown, in the embodiment of the present application, the abutting surfaces of the second main crescent plate 201 and the first secondary crescent plate 103 are provided with a second groove 2011, and the second elastic member 7 can be fixed in the second groove 2011, so that when the second sealing member 8 is arranged between the second elastic member 7 and the first secondary crescent plate 103, the second elastic member 7 can apply a force to the second sealing member 8 to move the first secondary crescent plate 103, that is, the second sealing member 8 abuts against the second main crescent plate 201 and the first secondary crescent plate 103 respectively to seal the second gap 4 between the second main crescent plate 201 and the first secondary crescent plate 103, thereby effectively isolating the oil in the first chamber 13 from entering the rotational cooperation between the first crescent plate 1 and the second crescent plate 2 from the second gap 4, thereby causing the rotational cooperation between the first crescent plate 1 and the second crescent plate 2 to fail, significantly improving the stability and reliability of the gear pump filling member, and extending the service life of the gear pump filling member.

[0091] Among them, in the embodiment of the present application, the second groove 2011 can be a triangular groove, a rectangular groove or a trapezoidal groove, etc., and the second elastic member 7 can be a spring, a reed or a rubber pad, etc. Technical personnel in this field can choose according to actual needs, and the present application does not make any specific restrictions here.

[0092] In addition, in the embodiment of the present application, the second sealing member 8 can be a cylindrical sealing rod or an irregular cylindrical sealing rod. Of course, under the condition that the sealing between the second main crescent plate 201 and the first auxiliary crescent plate 103 is met, the second sealing member 8 can also be a prismatic sealing rod or an irregular prismatic sealing rod, etc., and technicians in this field can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0093] In addition, in the embodiment of the present application, the connection between the second elastic member 7 and the second sealing member 8, and the connection between the second elastic member 7 and the first secondary crescent plate 103 can be bonding or welding, etc., and technicians in this field can choose according to actual needs, and the present application does not make any specific restrictions here.

[0094] In one embodiment, the first connecting portion 102 includes a first rotating portion 1021 and a first extending portion 1022, and the size of the first rotating portion 1021 along the first direction is smaller than the size of the first extending portion 1022 along the first direction; the second connecting portion 202 includes a second rotating portion 2021 and a second extending portion 2022, and the size of the second rotating portion 2021 along the first direction is equal to the size of the second extending portion 2022 along the first direction; the first rotating portion 1021 rotates in cooperation with the second rotating portion 2021.

[0095] Specifically, Figure 4 and Figure 6 As shown, in the embodiment of the present application, the size of the first main crescent plate 101 along the first direction is equal to the size of the first auxiliary crescent plate 103 along the first direction, the size of the first connecting portion 102 along the first direction is smaller than the size of the first main crescent plate 101 along the first direction, or the size of the first connecting portion 102 along the first direction is smaller than the size of the first auxiliary crescent plate 103 along the first direction; the size of the second main crescent plate 201 along the first direction is equal to the size of the second auxiliary crescent plate 203 along the first direction, the size of the second connecting portion 202 along the first direction is smaller than the size of the second main crescent plate 201 along the first direction, or the size of the second connecting portion 202 along the first direction is smaller than the size of the second auxiliary crescent plate 203 along the first direction, thereby facilitating the rotational cooperation between the first crescent plate 1 and the second crescent plate 2.

[0096] Among them, the first connecting part 102 also includes a first rotating part 1021, and the first rotating part 1021 is provided with a first circular protrusion 10211; the second connecting part 202 also includes a second rotating part 2021 and a second extending part 2022, and the second rotating part 2021 is provided with a first band groove 20211. By setting the size of the first rotating part 1021 along the first direction to be smaller than the size of the first extending part 1022 along the first direction, and the size of the second rotating part 2021 along the first direction is equal to the size of the second extending part 2022 along the first direction, the connection efficiency of the first crescent plate 1 and the second crescent plate 2 can be effectively improved, and the assembly efficiency of the gear pump filling piece can also be significantly improved.

[0097] In addition, when the first rotating part 1021 is provided with a second band-shaped groove, the size of the first rotating part 1021 along the first direction can also be set to be equal to the size of the first extending part 1022 along the first direction, so that the first crescent plate 1 can be more conveniently rotated and matched with the second crescent plate 2, thereby realizing the improvement of the assembly efficiency of the gear pump filling piece.

[0098] In addition, when the second rotating portion 2021 is provided with a second circular protrusion, the size of the second rotating portion 2021 along the first direction can also be set to be smaller than the size of the second extending portion 2022 along the first direction, so that the first crescent plate 1 can be more conveniently rotated and matched with the second crescent plate 2, thereby improving the assembly efficiency of the gear pump filling piece.

[0099] In one embodiment, the first rotating part 1021 includes a first circular protrusion 10211, the second rotating part 2021 includes a first band-shaped groove 20211, and the first circular protrusion 10211 rotationally cooperates with the first band-shaped groove 20211; or, the first rotating part 1021 includes a second band-shaped groove, the second rotating part 2021 includes a second circular protrusion, and the second circular protrusion rotationally cooperates with the second band-shaped groove.

[0100] Specifically, Figure 4 and Figure 6 As shown, the first rotating part 1021 and the second rotating part 2021 of the embodiment of the present application can form the rotating part of the gear pump filling piece, and then through the first circular protrusion 10211 and the first belt-shaped groove 20211, or through the second circular protrusion and the second belt-shaped groove, the first crescent plate 1 can effectively rotate around the rotating part relative to the second crescent plate 2. Furthermore, the high-pressure hydraulic oil in the internal gear pump acts on the first crescent plate 1 and the second crescent plate 2, which can significantly improve the internal sealing effect of the internal gear pump.

[0101] In addition, the rotating part formed by the first rotating part 1021 and the second rotating part 2021 in the embodiment of the present application can also thin the thickness of the hydraulic oil film in the internal gear pump, and reduce the leakage flow of the hydraulic oil in each positioning pin gap, the first gap 3, the second gap 4 and the third gap 16 in the internal gear pump.

[0102] In one embodiment, the size of the first extension portion 1022 along the first direction is smaller than the size of the first secondary crescent plate 103 along the first direction; and / or the size of the second extension portion 2022 along the first direction is smaller than the size of the second secondary crescent plate 203 along the first direction.

[0103] Specifically, Figure 4 and Figure 6 As shown, in the embodiment of the present application, by setting the size of the first extension portion 1022 along the first direction to be smaller than the size of the first secondary crescent plate 103 along the first direction, and the size of the second extension portion 2022 along the first direction to be smaller than the size of the second secondary crescent plate 203 along the first direction, the first connection portion 102 can be better connected to the second connection portion 202.

[0104] For example, by providing a shorter first extension portion 1022 and a shorter second extension portion 2022, the first circular protrusion 10211 can be more conveniently inserted into the first band-shaped groove 20211, and the first circular protrusion 10211 can be better rotated in the first band-shaped groove 20211, thereby significantly improving the rotational coordination effect of the first crescent plate 1 and the second crescent plate 2.

[0105] In one embodiment, a third gap 16 is defined between the first connection portion 102 and the second connection portion 202 ; a size of the third gap 16 can be reduced to zero according to the rotation of the first connection portion 102 and the second connection portion 202 .

[0106] Specifically, Figure 1 and Figure 2 As shown, when the first rotating part 1021 rotates to the extreme position relative to the second rotating part 2021, that is, when the sizes of the first gap 3 and the second gap 4 are the largest, the first extending part 1022 can abut against the second extending part 2022, so that the third gap 16 is reduced to zero, thereby effectively eliminating the third gap 16.

[0107] Therefore, when the pressure in the high-pressure chamber of the gear pump is too high and squeezes the first secondary crescent plate 103 or the second secondary crescent plate 203, the rotation angle of the first rotating part 1021 relative to the second rotating part 2021 can be effectively limited, so as to further prevent the first secondary crescent plate 103 or the second secondary crescent plate 203 from being excessively lifted and aggravated by wear.

[0108] Among them, since there is a first gap 3 between the first main crescent plate 101 and the second auxiliary crescent plate 203, and there is a second gap 4 between the second main crescent plate 201 and the first auxiliary crescent plate 103, when the size of the first gap 3 or the second gap 4 gradually increases, the third gap gradually decreases; when the size of the first gap 3 or the second gap 4 gradually decreases, the third gap gradually increases.

[0109] In one embodiment, the first connecting portion 102 includes a first extending portion 1022, which is disposed on a side of the first secondary crescent plate 103 close to the first main crescent plate 101; the second connecting portion 202 includes a second extending portion 2022, which is disposed on a side of the second secondary crescent plate 203 close to the second main crescent plate 201; and the third gap 16 is provided between the first extending portion 1022 and the second extending portion 2022.

[0110] Specifically, Figure 4 and Figure 6 As shown, in the embodiment of the present application, the first extension portion 1022 is an extension portion of the first secondary crescent plate 103 toward the first main crescent plate 101, and the second extension portion 2022 is an extension portion of the second secondary crescent plate 203 toward the second main crescent plate 201. The first extension portion 1022 can make the first secondary crescent plate 103 closer to the second secondary crescent plate 203, and the second extension portion 2022 can make the second secondary crescent plate 203 closer to the first secondary crescent plate 103.

[0111] Thus, by the first extension portion 1022 and the second extension portion 2022 being close to each other, the third gap 16 between the first crescent plate 1 and the second crescent plate 2 can be effectively reduced, so that the volume of hydraulic oil that can be accommodated in the third gap 16 is smaller, and the hydraulic oil leakage flow of the third gap 16 is significantly reduced. At the same time, the embodiment of the present application also significantly reduces the impact on the apex of the gear ring 10 through the provision of the first extension portion 1022, so that the stability and reliability of the internal gear pump are higher.

[0112] In one embodiment, the first connecting portion 102 includes a first connecting hole (not shown in the figure), and the second connecting portion 202 includes a second connecting hole (not shown in the figure); the gear pump filler also includes a rotating pin (not shown in the figure), one end of the rotating pin is rotatably set in the first connecting hole, and the other end of the rotating pin is rotatably set in the second connecting hole.

[0113] Specifically, the embodiment of the present application effectively realizes the rotation of the first crescent plate 1 around the rotating portion relative to the second crescent plate 2 by the cooperation of the rotating pin with the first connecting hole and the second connecting hole. Furthermore, the internal sealing effect of the internal gear pump can be significantly improved by the high-pressure hydraulic oil in the internal gear pump acting on the first crescent plate 1 and the second crescent plate 2.

[0114] In one embodiment, an end surface of the first main crescent plate 101 facing away from the first secondary crescent plate 103 and an end surface of the second secondary crescent plate 203 facing away from the second main crescent plate 201 are located in the same plane; and / or an end surface of the first secondary crescent plate 103 facing away from the first main crescent plate 101 and an end surface of the second main crescent plate 201 facing away from the second secondary crescent plate 203 are located in the same plane.

[0115] Specifically, Figure 1 and Figure 2 As shown, after the first crescent plate 1 and the second crescent plate 2 are connected in the embodiment of the present application, the edges of the first crescent plate 1 and the second crescent plate 2 are substantially flush, so that the hydraulic oil can enter the first gap 3 or the second gap 4 more quickly, thereby further reducing the risk of the first auxiliary crescent plate 103 or the second auxiliary crescent plate 203 being worn.

[0116] In one embodiment, the first crescent plate 1 further includes a first tilting structure 104, which is disposed at one end of the first main crescent plate 101 away from the first secondary crescent plate 103, and the first tilting structure 104 can enclose a first accommodating area 17 with the first main crescent plate 101, and the first accommodating area 17 is used to accommodate the second secondary crescent plate 203; and / or, the second crescent plate 2 further includes a second tilting structure 204, which is disposed at one end of the second main crescent plate 201 away from the second secondary crescent plate 203, and the second tilting structure 204 can enclose a second accommodating area 18 with the second main crescent plate 201, and the second accommodating area 18 is used to accommodate the first secondary crescent plate 103.

[0117] Specifically, Figure 7 As shown, in the embodiment of the present application, the first tilting structure 104 and the first main crescent plate 101 form the first accommodating area 17, and the second tilting structure 204 and the second main crescent plate 201 form the second accommodating area 18, so that the first auxiliary crescent plate 103 can be placed in the second accommodating area 18, and the second auxiliary crescent plate 203 can be placed in the first accommodating area 17, thereby effectively improving the stability of the first auxiliary crescent plate 103 and the second auxiliary crescent plate 203, and preventing the first auxiliary crescent plate 103 and the second auxiliary crescent plate 203 from falling off during use.

[0118] According to another embodiment of the present application, a gear pump is provided, which includes a gear 9, a ring gear 10 and a gear pump filler as described in the embodiment of the present application, the gear 9 is internally meshed with the ring gear 10, one end of the gear pump filler abuts against the gear 9, and the other end of the gear pump filler abuts against the ring gear 10.

[0119] Specifically, Figure 1 and Figure 2 As shown, in the embodiment of the present application, one end of the gear pump filler is abutted against the tooth top circle of the gear 9, and the other end of the gear pump filler is abutted against the tooth top circle of the ring gear 10, so that the gear pump filler can be installed between the gear 9 and the ring gear 10 of the internal gear pump, thereby ensuring that the hydraulic oil in the internal gear pump can be smoothly transferred from the first chamber 13 to the second chamber 14, or ensuring that the hydraulic oil in the internal gear pump can be smoothly transferred from the second chamber 14 to the first chamber 13.

[0120] In one embodiment, the gear pump further comprises a first fluid chamber 11 and a second fluid chamber 12, wherein the first fluid chamber 11 is disposed between the gear 9 and the gear pump filler, and the second fluid chamber 12 is disposed between the gear ring 10 and the gear pump filler.

[0121] Specifically, Figure 1 and Figure 2 As shown, after the first crescent plate 1 and the second crescent plate 2 of the embodiment of the present application are rotated and matched, the first main crescent plate 101 and the second main crescent plate 201 are located in the same arc segment on one side close to the gear 9, and the first auxiliary crescent plate 103 and the second auxiliary crescent plate 203 are located in the same arc segment on one side close to the gear ring 10.

[0122] Furthermore, after the first main crescent plate 101 abuts against the tooth top circle of the gear 9, the second main crescent plate 201 abuts against the tooth top circle of the gear 9, the first auxiliary crescent plate 103 abuts against the tooth top circle of the ring gear 10, and the second auxiliary crescent plate 203 abuts against the tooth top circle of the ring gear 10, the gear pump filler can effectively separate the fluid space between the gear 9 and the ring gear 10 into a first fluid chamber 11 enclosed by the gear pump filler and the gear 9 and a second fluid chamber 12 enclosed by the gear pump filler and the ring gear 10.

[0123] According to another embodiment of the present application, a suspension assembly is provided. The suspension assembly includes the gear pump described in the embodiment of the present application.

[0124] According to another embodiment of the present application, a vehicle is provided. The vehicle includes the suspension assembly described in the embodiment of the present application.

[0125] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0126] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A gear pump filler, used to fill between a gear ring (10) and a gear (9) internally meshed with the gear ring (10), characterized in that: The first crescent plate (1) includes: The first crescent plate (1) comprises a first connecting portion (102), a first main crescent plate (101) for abutting against the outer side of the gear (9), and a first auxiliary crescent plate (103) for abutting against the inner side of the gear ring (10), wherein the first connecting portion (102) is arranged between the first main crescent plate (101) and the first auxiliary crescent plate (103).

2. The gear pump filler according to claim 1, characterized in that: Also includes a second crescent plate (2); The second crescent plate (2) comprises a second connecting portion (202), a second main crescent plate (201) for abutting against the outer side of the gear (9), and a second auxiliary crescent plate (203) for abutting against the inner side of the gear ring (10), wherein the second connecting portion (202) is arranged between the second main crescent plate (201) and the second auxiliary crescent plate (203); The first connecting portion (102) and the second connecting portion (202) are rotatably matched; The first crescent plate (1) and the second crescent plate (2) are arranged alternately.

3. The gear pump filler according to claim 2, characterized in that: A first groove (1011) is provided between the first main crescent plate (101) and the second auxiliary crescent plate (203); The gear pump filling piece also includes a first elastic piece (5) and a first sealing piece (6), wherein the first elastic piece (5) is arranged in the first groove (1011), and the first elastic piece (5) can make the first sealing piece (6) abut against the first main crescent plate (101) and the second secondary crescent plate (203) respectively, so as to seal the first gap (3) between the first main crescent plate (101) and the second secondary crescent plate (203).

4. The gear pump filler according to claim 2, characterized in that: A second groove (2011) is provided between the second main crescent plate (201) and the first auxiliary crescent plate (103); The gear pump filling piece also includes a second elastic piece (7) and a second sealing piece (8), wherein the second elastic piece (7) is arranged in the second groove (2011), and the second elastic piece (7) can make the second sealing piece (8) abut against the second main crescent plate (201) and the first auxiliary crescent plate (103) respectively, so as to seal the second gap (4) between the second main crescent plate (201) and the first auxiliary crescent plate (103).

5. The gear pump filler according to claim 2, characterized in that: The first connecting portion (102) comprises a first rotating portion (1021) and a first extending portion (1022), wherein a dimension of the first rotating portion (1021) along the first direction is smaller than a dimension of the first extending portion (1022) along the first direction; The second connecting portion (202) comprises a second rotating portion (2021) and a second extending portion (2022), wherein a dimension of the second rotating portion (2021) along the first direction is equal to a dimension of the second extending portion (2022) along the first direction; The first rotating part (1021) and the second rotating part (2021) are rotationally matched.

6. The gear pump filler according to claim 5, characterized in that: The first rotating part (1021) comprises a first circular protrusion (10211), the second rotating part (2021) comprises a first belt-shaped groove (20211), and the first circular protrusion (10211) and the first belt-shaped groove (20211) are rotatably matched; Alternatively, the first rotating portion (1021) includes a second band-shaped groove, and the second rotating portion (2021) includes a second circular protrusion, and the second circular protrusion is rotationally matched with the second band-shaped groove.

7. The gear pump filler according to claim 5, characterized in that: The dimension of the first extension portion (1022) along the first direction is smaller than the dimension of the first auxiliary crescent plate (103) along the first direction; And / or, the dimension of the second extension portion (2022) along the first direction is smaller than the dimension of the second auxiliary crescent plate (203) along the first direction.

8. The gear pump filler according to claim 2, characterized in that: A third gap (16) is provided between the first connecting portion (102) and the second connecting portion (202); The size of the third gap (16) can be reduced to zero according to the rotation of the first connecting part (102) and the second connecting part (202).

9. The gear pump filler according to claim 8, characterized in that: The first connecting portion (102) comprises a first extending portion (1022), and the first extending portion (1022) is arranged on a side of the first secondary crescent plate (103) close to the first main crescent plate (101); The second connecting portion (202) comprises a second extending portion (2022), and the second extending portion (2022) is arranged on a side of the second secondary crescent plate (203) close to the second primary crescent plate (201); The third gap (16) is provided between the first extension portion (1022) and the second extension portion (2022).

10. The gear pump filler according to claim 2, characterized in that: The first connection portion (102) includes a first connection hole, and the second connection portion (202) includes a second connection hole; The gear pump filling piece further includes a rotating pin, one end of which is rotatably disposed in the first connecting hole, and the other end of which is rotatably disposed in the second connecting hole.

11. The gear pump filler according to claim 2, characterized in that: An end surface of the first main crescent plate (101) facing away from the first auxiliary crescent plate (103) and an end surface of the second auxiliary crescent plate (203) facing away from the second main crescent plate (201) are located in the same plane; And / or, an end surface of one end of the first secondary crescent plate (103) facing away from the first main crescent plate (101) and an end surface of one end of the second main crescent plate (201) facing away from the second secondary crescent plate (203) are located in the same plane.

12. The gear pump filler according to claim 2, characterized in that: The first crescent plate (1) further comprises a first tilting structure (104), the first tilting structure (104) being arranged at one end of the first main crescent plate (101) away from the first auxiliary crescent plate (103), the first tilting structure (104) being able to enclose a first accommodating area (17) with the first main crescent plate (101), the first accommodating area (17) being used to accommodate the second auxiliary crescent plate (203); And / or, the second crescent plate (2) further comprises a second tilting structure (204), the second tilting structure (204) being arranged at an end of the second main crescent plate (201) away from the second auxiliary crescent plate (203), the second tilting structure (204) being able to enclose a second accommodating area (18) with the second main crescent plate (201), the second accommodating area (18) being used to accommodate the first auxiliary crescent plate (103).

13. A gear pump, characterized in that: It comprises a gear (9), a gear ring (10) and a gear pump filler as described in any one of claims 1 to 12, wherein the gear (9) is internally meshed with the gear ring (10), one end of the gear pump filler abuts against the gear (9), and the other end of the gear pump filler abuts against the gear ring (10).

14. The gear pump according to claim 13, characterized in that The gear pump further comprises a first fluid chamber (11) and a second fluid chamber (12), wherein the first fluid chamber (11) is arranged between the gear (9) and the gear pump filling piece, and the second fluid chamber (12) is arranged between the gear ring (10) and the gear pump filling piece.

15. A suspension assembly, characterized in that: Comprising a gear pump as claimed in claim 13 or 14.

16. A vehicle, characterized in that: Comprising the suspension assembly as claimed in claim 15.

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