Eccentric thrust ball device

Abstract

The utility model provides an eccentric thrust ball device which comprises a mounting plate, two push rods and a plurality of rollers, the mounting plate is provided with a raceway for mounting the rollers, the raceway comprises two semi-ring sections and a communicating hole, the two semi-ring sections are respectively arranged on the front end face and the rear end face of the mounting plate, and the communicating hole is communicated with the two semi-ring sections. The two semi-ring sections are symmetrically arranged up and down, the communicating holes are formed in the ends, corresponding to the semi-ring sections, of the mounting plate in a penetrating mode to communicate the two semi-ring sections, and the two push rods are matched with the rollers of the two semi-ring sections in an abutting mode respectively. Aiming at the defects in the prior art, the utility model provides the eccentric thrust ball device which has fewer parts and higher eccentric rotation efficiency on the basis of realizing eccentric rotation and support.

Description

Technical Field

[0001] The utility model relates to an eccentric thrust ball device. Background Art

[0002] A bearing is an important component for the rotational support of a mechanical body. Bearings are widely used. To meet different usage scenarios and requirements, many different types of bearings have emerged. In fields such as textile machinery, hydraulic pumps, speed reducers, and construction machinery, there is often a need for eccentric operation between two shafts. However, the bearings in the prior art often need to cooperate with components such as eccentric shafts and eccentric blocks to meet the requirements, which leads to the problems of more component parts and a more complex structure. Therefore, further optimization is needed. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an eccentric thrust ball device that can achieve eccentric rotation and support with fewer components and higher eccentric rotation efficiency.

[0004] To achieve the above object, the utility model provides an eccentric thrust ball device, which includes a mounting plate, two push rods, and several rollers. A raceway for installing the rollers is provided on the mounting plate. The raceway includes two semi-circular ring segments and a communication hole. The two semi-circular ring segments are respectively arranged at the front and rear end faces of the mounting plate, and the two semi-circular ring segments are symmetrically arranged up and down. The communication hole is arranged at the end of the mounting plate corresponding to the semi-circular ring segment to connect the two semi-circular ring segments. The two push rods are respectively in contact and cooperation with the rollers of the two semi-circular ring segments.

[0005] The advantages of adopting the above technical solution are: By setting a mounting plate, two push rods, and several rollers, the mounting plate is provided with two semi-circular ring segments and a communication hole. The two semi-circular ring segments are respectively arranged on the front and rear end faces of the mounting plate, and then the two semi-circular ring segments are connected through the communication hole. The rollers are installed on the raceway so that the rollers can roll cyclically on the two semi-circular ring segments. Finally, the two push rods are respectively in contact and cooperation with the rollers on the two semi-circular ring segments, thereby realizing the rolling support of the two push rods. And compared with the combination of bearings, eccentric shafts, and eccentric blocks in the prior art, there are fewer components and the structure is relatively simple.

[0006] The utility model can be further set as: The mounting plate is formed by splicing two plate members and connected by bolts. The two semi-circular ring segments are respectively arranged on the two plate members, and inclined guiding segments are arranged at both ends of the semi-circular ring segment and inclined towards the other plate member. The communication hole is formed by splicing two opposite guiding segments.

[0007] Through further setting, the mounting plate is formed by splicing two plate members, and the two semi-circular segments are respectively arranged on the two plate members. Then, through the communication hole formed by splicing the inclined guiding segments at the ends of the two semi-circular segments, the roller can roll cyclically on the two semi-circular segments. And setting the mounting plate to be formed by splicing two plate members can facilitate processing.

[0008] The present utility model can be further set as follows: a boss portion is formed on one plate member protruding from the end face where the raceway of the other plate member is located, and there is a clearance fit between the boss portion and the push rod.

[0009] Through further setting, a boss portion is arranged on the plate member, so that the boss portion can have a clearance fit with the push rod, playing the role of dust prevention and oil leakage prevention.

[0010] The present utility model can be further set as follows: a shielding portion is extended and arranged on the mounting plate, the shielding portion extends towards the direction of the push rod, and both sides of the shielding portion extend to the boss portion to form shielding for the push rod.

[0011] Through further setting, by arranging the shielding portion on the mounting plate, on the one hand, it can provide shielding for the push rod to ensure the sealing effect, and on the other hand, it can also facilitate the connection with the external mechanical body through the shielding portion.

[0012] The present utility model can be further set as follows: the push rod is provided with an abutting end for abutting against the roller, the diameter of the abutting end is larger than that of the push rod, and an arc groove for the outer edge of the abutting end to extend into is arranged in the shielding portion.

[0013] Through further setting, by arranging an abutting end with a diameter larger than that of the push rod on the push rod, and then arranging an arc groove in the shielding portion for the outer edge of the abutting end to extend into, there are multiple bends in the gap between the push rod and the shielding portion, better preventing the leakage of grease. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the embodiment of the present utility model Figure 1 ;

[0015] Figure 2 is the structural schematic diagram of the embodiment of the present utility model Figure 2 ;

[0016] Figure 3 is the embodiment of the present utility model Figure 2 the cross-sectional view taken along C-C in;

[0017] Figure 4 is the schematic diagram of the cooperation between the mounting plate and the roller in the embodiment of the present utility model;

[0018] Figure 5 is the structural schematic diagram of the plate member in the embodiment of the present utility model;

[0019] Wherein: mounting plate 1; plate member 11; convex platform portion 111; shielding portion 12; arc groove 121; push rod 2; abutting end 21; roller 3; raceway 4; semi-ring segment 41; guiding segment 42. Detailed implementation mode

[0020] An embodiment of the eccentric thrust ball device of the present utility model is as Figures 1-5 shown: It includes a mounting plate 1, two push rods 2 and a plurality of rollers 3. A raceway 4 for mounting the rollers 3 is provided on the mounting plate 1. The raceway 4 includes two semi-ring segments 41 and a communication hole. The two semi-ring segments 41 are respectively arranged at the front and rear end faces of the mounting plate 1, and the two semi-ring segments 41 are symmetrically arranged up and down. The communication hole penetrates through the end of the mounting plate corresponding to the semi-ring segment and forms the communication of the two semi-ring segments 41. The two push rods 2 are respectively in abutting fit with the rollers 3 of the two semi-ring segments 41.

[0021] The mounting plate 1 is formed by splicing two plate members 11 and connecting them by bolts. The two semi-ring segments 41 are respectively arranged on the two plate members 11, and guiding segments 42 inclined towards the other plate member 11 are arranged at both ends of the semi-ring segment 41 on any one of the plate members 11. The communication hole is formed by splicing two opposite guiding segments 42.

[0022] A convex platform portion 111 protrudes from the end face of any one of the plate members 11 where the raceway 4 of the other plate member 12 is located. The convex platform portion 111 is in clearance fit with the push rod 2.

[0023] A shielding portion 12 is extendedly provided on the mounting plate 1. The shielding portion 12 extends towards the direction of the push rod 2, and both sides of the shielding portion 12 extend to the convex platform portion 111 to shield the push rod 2.

[0024] The push rod 2 is provided with an abutting end 21 for abutting against the roller 3. The diameter of the abutting end 21 is larger than that of the push rod 2. An arc groove 121 for the outer edge of the abutting end 21 to extend into is provided in the shielding portion 12. In this embodiment, only the front end of the push rod 2 and the abutting end 21 are drawn.

[0025] The above examples are only one of the preferred specific examples of the present utility model. The common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the protection scope of the present utility model.

Claims

1. An eccentric thrust ball device, characterized in that: It includes a mounting plate, two push rods and a number of rollers. The mounting plate is provided with raceways for mounting the rollers. The raceways include two semi-circular ring segments and a communication hole. The two semi-circular ring segments are respectively arranged at the front and rear end faces of the mounting plate, and the two semi-circular ring segments are symmetrically arranged up and down. The communication hole is arranged at the end of the mounting plate corresponding to the semi-circular ring segment and forms the communication of the two semi-circular ring segments. The two push rods are respectively in abutting fit with the rollers of the two semi-circular ring segments.

2. The eccentric thrust ball device according to claim 1, characterized in that: The mounting plate is formed by splicing two plate members and connecting them with bolts. The two semi-circular ring segments are respectively arranged on the two plate members, and guiding segments inclined towards the other plate member are arranged at both ends of the semi-circular ring segment. The communication hole is formed by splicing two opposite guiding segments.

3. The eccentric thrust ball device according to claim 2, wherein: A convex platform portion is formed by one plate member protruding relative to the end face of the other plate member where the raceway is located. There is a clearance fit between the convex platform portion and the push rod.

4. The eccentric thrust ball device according to claim 2 or 3, characterized in that: A shielding portion is extendedly arranged on the mounting plate. The shielding portion extends towards the direction of the push rod, and both sides of the shielding portion extend to the convex platform portion to shield the push rod.

5. The eccentric thrust ball device according to claim 4, characterized in that: The push rod is provided with an abutting end for abutting against the roller. The diameter of the abutting end is larger than that of the push rod. An arc groove is arranged in the shielding portion for the outer edge of the abutting end to extend into.

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