阅读说明：本技术 具有可自动连接泵单元的润滑剂泵和将泵单元连接到润滑剂泵的方法 (Lubricant pump with automatically connectable pump unit and method of connecting pump unit to lubricant pump ) 是由 科佩·波恩哈德 汤姆斯·乌奥夫 于 2020-03-09 设计创作，主要内容包括：本发明提供了一种润滑剂泵(100)和一种将泵单元(2)连接到润滑剂泵的方法。该润滑剂泵(100)包括：具有纵轴(A)的泵壳(1)；泵驱动部(3)；至少一个具有往复活塞(20)的泵单元(2)；抽吸口(25)在泵单元(2)插入接收口(10)时对应于润滑剂出口(12)；连接机构(4),其用于驱动至少一个泵单元(2)。所述连接机构(4)包括:偏心元件(31),其可通过泵驱动部(3),特别是通过驱动轴(3)绕纵向轴(A)旋转；连接到偏心元件(31)的驱动侧连接部(41)；至少一个泵单元(2)的泵侧连接部(21),特别是输送活塞(20)。其中,用于将泵单元(2)连接到泵驱动部(3)的驱动侧连接部(41)和泵侧连接部(21)被彼此连接,特别是自动地、通过优选为弹性的闩锁连接部(5)实行该连接。(The invention provides a lubricant pump (100) and a method of connecting a pump unit (2) to a lubricant pump. The lubricant pump (100) includes: a pump housing (1) having a longitudinal axis (A); a pump drive unit (3); at least one pump unit (2) having a reciprocating piston (20); the suction opening (25) corresponds to the lubricant outlet opening (12) when the pump unit (2) is inserted into the receiving opening (10); a connection mechanism (4) for driving the at least one pump unit (2). The connecting mechanism (4) comprises an eccentric element (31) which can be rotated about a longitudinal axis (A) by means of a pump drive (3), in particular by means of a drive shaft (3); a drive-side connecting portion (41) connected to the eccentric element (31); a pump-side connection (21), in particular a delivery piston (20), of the at least one pump unit (2). Wherein a drive-side connection (41) for connecting the pump unit (2) to the pump drive (3) and the pump-side connection (21) are connected to one another, in particular automatically, by means of a preferably elastic latching connection (5).)

1. Lubricant pump (100), in particular a radial piston pump, for conveying lubricant from a lubricant reservoir to at least one lubricant pump outlet, comprising:

-a pump housing (1) having a longitudinal axis (a), wherein the pump housing (1) has at least one receiving opening (10) of a preferably radially aligned pump unit (2) and also has a lubricant outlet (12) leading to the receiving opening (10);

-a pump drive (3), in particular comprising: a drive shaft (30) rotatably mounted in the pump housing (1);

-at least one pump unit (2) having a reciprocating piston (20), wherein the pump unit (2) has a lubricant suction opening (25) and a lubricant outlet opening (26), the suction opening (25) corresponding to the lubricant outlet opening (12) when the pump unit (2) is inserted into the receiving opening (10);

-a connection mechanism (4) for driving at least one pump unit (2), wherein the connection mechanism (4) comprises:

-an eccentric element (31) rotatable about a longitudinal axis (a) by a pump drive (3), in particular by a drive shaft (3);

-a drive side connection (41) connected to the eccentric element (31);

-a pump-side connection (21), in particular a delivery piston (20), of at least one pump unit (2);

wherein a drive-side connection (41) for connecting the pump unit (2) to the pump drive (3) and the pump-side connection (21) are connected to one another, in particular automatically, by means of a preferably elastic latching connection (5).

2. The lubricant pump (100) as claimed in claim 1, characterized in that the drive-side connection (41) has or forms at least one drive-side latching element (42) and the pump-side connection (21) has or forms a pump-side latching element (22), the pump-side latching elements (22) being in a positively locking manner, in particular in a mutually engaging or mutually following manner, in the connected state of the pump unit (2).

3. Lubricant pump (100) according to one of the preceding claims, characterized in that the drive-side latching element (42) and the pump-side latching element (22) have latching recesses or latching projections, or vice versa, which are formed to match one another.

4. Lubricant pump (100) according to one of the preceding claims, characterized in that the connecting mechanism (4) comprises at least one elastic latching element (22, 42), in particular an elastic drive-side latching element (42) and/or an elastic pump-side latching element (22), wherein the elastic latching element (22, 42) is mounted, in particular elastically deformable and/or elastically, preferably movably, to overcome a restoring force of displacement.

5. The lubricant pump (100) of claim 4, characterized in that the at least one resilient latching element (22, 42) moves at least substantially parallel to a radial direction (R) of the pump housing (1).

6. The lubricant pump (100) of claim 4, characterized in that the at least one resilient latching element (22, 42) is movable at least substantially perpendicular to a radial direction (R) of the pump housing (1), particularly preferably parallel to the longitudinal axis (A).

7. The lubricant pump (100) according to one of the preceding claims, in particular the lubricant pump (100) according to one of claims 4 to 6, characterized in that the connection mechanism (4) comprises a spring element (50), the spring element (50) acting with a displacement restoring force on the movably mounted latching element (42) and in particular being supported on the drive-side connection (41) or the pump-side connection.

8. Lubricant pump (100) according to one of the preceding claims, characterized in that the connecting mechanism (4) has a displacement guide (44) of the movable latching element (22, 42), the displacement guide (44) limiting the displacement path of the latching element (22, 42), preferably by means of a stop surface (51, 52), wherein the displacement guide (44) in particular limits the maximum latching position and/or the maximum release position of the latching element (22, 42).

9. Lubricant pump (100) according to one of the preceding claims, characterized in that the eccentric element (31) is connected to the drive side connection (41) in a rotationally fixed manner, wherein the drive side connection (41) is in particular designed as an eccentric ring which forms a circumferential drive side latching element, preferably an annular latching projection or an annular latching groove.

10. Lubricant pump (100) according to one of the claims 1 to 8, characterized in that the drive-side connection (41) comprises a preferably annular carrier element (43), the carrier element (43) being preferably mounted rotatably relative to the eccentric element (31) by means of at least one rolling bearing, and in particular carrying a drive-side latching element (42).

11. Lubricant pump (100) according to claim 10, characterized in that the guide element (3) is preferably mounted in a radially movable manner in the pump housing (1) elastically, and the carrier element (43) forms a sliding surface (49) for the forced guidance of the carrier element (43) by the guide element (6), wherein the carrier element (43) in particular performs a tumbling movement about the longitudinal axis (a).

12. Lubricant pump (100) according to one of the preceding claims, in particular according to claim 10 or 11, characterized in that the spring element (50) is arranged between the latching element (42) and the carrier element (43), in particular acts parallel to the longitudinal axis (a), preferably is accommodated in a spring guide opening (47) of the latching element (42).

13. Lubricant pump (100) according to one of the preceding claims, in particular the lubricant pump (100) according to one of the claims 10 to 12, characterized in that the displacement guide (44) comprises a guide element (45) for the latching element (41), which guide element (45) is slidably mounted in the carrier element (43), preferably parallel to the longitudinal axis (a), wherein the guide element (45) is slidably guided, in particular in a through hole (53) of the carrier element (43).

14. The lubricant pump (100) according to one of the preceding claims, in particular the lubricant pump (100) according to one of claims 10 to 13, characterized in that the guide element (45) is formed with a stop surface (51) on a side of the carrier element (43) facing away from the latching element (42), which stop surface (51) limits a maximum latching position of the latching element (42), wherein in particular the guide element (45) is connected to the latching element (42) on a side facing the latching element (42).

15. Lubricant pump (100) according to one of the preceding claims, characterized in that the pump-side latching element (22) is formed by a circumferential projection (23) of the delivery piston (20) and the drive-side latching element (42) is formed by a latching projection extending transversely to the radial direction (R), preferably formed in a linear manner.

16. The lubricant pump (100) according to one of the preceding claims, in particular the lubricant pump (100) according to one of claims 10 to 15, characterized in that a latching block (48) which is carried by the carrier element (43) and is mounted in particular movably parallel to the longitudinal axis (a) in the carrier element (43) forms the drive-side latching element (42), preferably as a linear latching projection.

17. Lubricant pump (100) according to one of the preceding claims, characterized in that the radially outwardly oriented latching surface (61) of the pump-side latching element (22) and/or the radially inwardly oriented latching surface (71) of the drive-side latching element (42) have a slanted surface portion (62 or 72), in particular slanted with respect to the radial direction (R), wherein the gradient of the surface portions (62 and 72) is preferably at least substantially identical, preferably between 15 ° and 30 °, particularly preferably approximately 20 °.

18. Lubricant pump (100) according to one of the preceding claims, in particular according to one of the claims 10 to 17, characterized in that in the connected state of the pump unit (2) the pump-side latching element (22), preferably the end face (27) of the delivery piston (20), bears against an outer bearing ring (34, 35) of a rolling bearing (32, 33) held by the eccentric element (31), preferably against an outer bearing ring of a radial rolling bearing (32), or against an outer surface of the carrier element (43).

19. Lubricant pump (100) according to one of the preceding claims, in particular according to one of the claims 10 to 18, characterized in that the spring element (50) exerts a contact pressure on the pump-side latching element (22) by way of a ramp portion (62 or 72) of the drive-side latching element (42) and/or of the pump-side latching element (22) against an outer surface of an outer bearing ring (34, 35) or of a carrier element (43) of the rolling bearing (32, 33).

20. Lubricant pump (100) according to one of the preceding claims, characterized in that the guide surface (63), in particular the circumferential guide surface, of the pump-side latching element (22) and/or the guide surface (73) of the drive-side latching element (42) is/are inclined, in particular inclined with respect to the radial direction (R), wherein preferably the gradient of the guide surfaces (63 and 73) is at least substantially identical, preferably between 20 ° and 30 °, in particular preferably approximately 25 °.

21. Method for connecting a pump unit (2) to a lubricant pump (100), in particular to a radial piston pump, in particular to a lubricant pump of one of claims 1 to 20, comprising the steps of:

-inserting the pump unit (2) into a radially aligned receiving opening (10) of a pump housing (1) of a lubricant pump (100),

wherein the pump housing (1) has a longitudinal axis (A), in particular a lubricant outlet (12) which opens into the receiving opening (10),

wherein the pump unit (2) comprises in particular a reciprocally movable delivery piston (20), a suction opening (25) and a discharge opening (26), each for delivering lubricant;

-optional alignment work, in particular rotational adjustment, of the pump unit (2) such that the suction opening (25) of the pump unit (2) corresponds to the lubricant outlet (12);

-connecting the pump unit (2) to the connecting means (4) of the lubricant pump (100) by means of an elastic latching connection (5) forming a pump-side connection (21) of the pump unit (2), in particular by means of an elastic latching connection (5) of the delivery piston (20), forming a drive-side connection (41) connected to the eccentric element (31), wherein the eccentric element (31) is rotatable about the longitudinal axis (a) by means of a pump drive (3) for driving the connecting means (4);

-wherein the latching connection (5) is preferably established automatically, in particular by rotation of the eccentric element (31), preferably by actuation of the pump drive (3), and by latching the pump-side connection (21) into the drive-side connection (41).

22. Method according to claim 21, characterized in that, for forming the latching connection (5), a displacement restoring force applied by the spring element (50) to the displaceable latching element (22, 42), in particular to the displaceable drive-side latching element (42) and/or the displaceable pump-side latching element (22), is overcome.