High-heat-dissipation wear-resistant plastic bearing

Abstract

The utility model relates to a high heat dissipation wear resistant plastic bearing, which comprises a bearing outer ring, a bearing inner ring and steel balls, the bearing outer ring comprises an outer ring injection molding body and a first metal body, the bearing inner ring comprises an inner ring injection molding body and a second metal body, the outer ring injection molding body is provided with a first guide rail groove, and the inner ring injection molding body is provided with a second guide rail groove. The first metal body comprises a first metal ring, a plurality of first metal connecting pieces and a plurality of first metal protrusions, the first metal ring is arranged in the first guide rail groove, and the first metal connecting pieces are connected with the first metal ring and the first metal protrusions on the two sides at the same time. The second metal body comprises a second metal ring, a plurality of second metal connecting pieces and a plurality of second metal protrusions, the second metal ring is arranged in the second guide rail groove, and the second metal connecting pieces are connected with the second metal ring and the second metal protrusions on the two sides at the same time. And the conditions that the bearing lubricating effect becomes poor and operation is unstable due to the fact that the interior of the bearing is overheated are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plastic bearing, in particular to a high-heat-dissipation wear-resistant plastic bearing. BACKGROUND

[0002] Now plastic bearings are more and more used in various fields, and the plastic bearings generally adopt some high-performance engineering plastics, such as polyether ether ketone (PEEK), polytetrafluoroethylene (PTFE), nylon (Nylon) and the like, which have the characteristics of light weight, corrosion resistance and the like, but the heat dissipation of these plastic bearings is poor, and heat is easily accumulated in the bearing during use, resulting in an increase in the internal temperature of the bearing, and ultimately leading to poor lubrication effect and unstable bearing operation. SUMMARY

[0003] The utility model discloses a high-heat-dissipation wear-resistant plastic bearing which can dissipate heat in time.

[0004] The technical scheme for realizing the utility model is as follows:

[0005] The high-heat-dissipation wear-resistant plastic bearing comprises a bearing outer ring, a bearing inner ring and steel balls arranged between the bearing outer ring and the bearing inner ring, the bearing outer ring comprises an outer ring injection body and a first metal body, the bearing inner ring comprises an inner ring injection body and a second metal body, one side of the outer ring injection body facing the inner ring injection body is provided with a first guide rail groove, one side of the inner ring injection body facing the outer ring injection body is provided with a second guide rail groove, the first metal body comprises a first metal ring, a plurality of first metal connecting pieces and a plurality of first metal protrusions arranged on the two side surfaces of the outer ring injection body, the first metal ring is arranged in the first guide rail groove, the first metal connecting pieces are in T shape, the first metal connecting pieces simultaneously connect the first metal ring and the first metal protrusions on the two sides, the second metal body comprises a second metal ring, a plurality of second metal connecting pieces and a plurality of second metal protrusions arranged on the two side surfaces of the inner ring injection body, the second metal ring is arranged in the second guide rail groove, the second metal connecting pieces are in T shape, and the second metal connecting pieces simultaneously connect the second metal ring and the second metal protrusions on the two sides.

[0006] Adopt above-mentioned structure, steel ball and first metal ring and second metal ring contact, in bearing working process, heat generated by steel ball and first metal ring, second metal ring friction respectively through first metal connecting piece and second metal connecting piece transfer to first metal convex and second metal convex, in through first metal convex and second metal convex, heat is dissipated to air, first metal convex and second metal convex adopt outward convex structure, improve first metal convex, second metal convex and air contact area, improve first metal convex and second metal convex's heat dissipation effect, simultaneously, in bearing working process, bearing outer ring and bearing outer ring certainly at least one in rotation, from thereby drive corresponding first metal convex or second metal convex rotation, further drive air flow, further improve bearing heat dissipation effect, the utility model can effectively improve heat dissipation effect, avoid bearing interior overheating lead to bearing lubrication effect become worse, unstable operation situation.

[0007] Preferably, in order to improve the lubricating effect between the steel ball and the first metal ring and the second metal ring, the first metal ring and the second metal ring are provided with a plurality of oil storage grooves, so that the lubricating oil is stored in advance in the oil storage grooves, improving the lubricating effect between the steel ball and the first metal ring and the second metal ring, and improving the service life of the bearing.

[0008] Preferably, in order to improve the contact area of the first metal convex and the second metal convex with air, the first metal convex and the second metal convex are semispherical.

[0009] Preferably, in order to improve the effect of the first metal convex and the second metal convex driving air flow, the first metal convex and the second metal convex are crescent-shaped. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0011] Figure 1 It is the structural schematic diagram of the utility model.

[0012] Figure 2 It is the bearing inner ring and bearing outer ring cooperation schematic view of the utility model, PREFERRED EMBODIMENT

[0013] As Figure 1 And Figure 2As shown, the utility model discloses high heat dissipation wear -resisting plastic bearing includes bearing outer ring 1, bearing inner race 2 and the steel ball 3 of setting between bearing outer ring and bearing inner race, and bearing outer ring includes the injection body 4 of outer ring and first metal body, and bearing inner race includes the injection body 5 of inner ring and second metal body, and bearing inner race and bearing outer ring metal insert injection molding, and the one side of injection body 4 of outer ring is provided with first guide rail groove 6 towards injection body 5 of inner ring, and the one side of injection body 5 of inner ring is provided with second guide rail groove 7 towards injection body 4 of outer ring, first metal body includes first metal ring 8, a plurality of first metal connecting piece 9 and a plurality of first metal protrusion 10 of setting injection body 4 both sides side, first metal ring is arranged in first guide rail groove, first metal connecting piece is T-shaped, and first metal connecting piece connects first metal ring and both sides first metal protrusion simultaneously, second metal body includes second metal ring 11, a plurality of second metal connecting piece 12 and a plurality of second metal protrusion 13 of setting injection body 5 both sides side, second metal ring is arranged in second guide rail groove, second metal connecting piece is T-shaped, and second metal connecting piece connects second metal ring and both sides second metal protrusion simultaneously, and first metal ring and second metal ring all are provided with a plurality of oil storage groove 14.

[0014] In some embodiments, the first metal protrusion and the second metal protrusion are semispherical.

[0015] In some embodiments, the first metal protrusion and the second metal protrusion are crescent-shaped.

[0016] After the above structure is adopted, the steel ball contacts the first metal ring and the second metal ring, and in the working process of the bearing, the heat generated by the friction between the steel ball and the first metal ring and the second metal ring is respectively transmitted to the first metal protrusion and the second metal protrusion through the first metal connecting piece and the second metal connecting piece, and then the heat is dissipated to the air through the first metal protrusion and the second metal protrusion. The first metal protrusion and the second metal protrusion adopt the structure of protruding outward, which improves the contact area between the first metal protrusion, the second metal protrusion and the air, and improves the heat dissipation effect of the first metal protrusion and the second metal protrusion. At the same time, in the working process of the bearing, the bearing outer ring and the bearing outer ring must at least one rotate, thereby driving the corresponding first metal protrusion or second metal protrusion to rotate, and further driving the air to flow, which further improves the heat dissipation effect of the bearing. The utility model can effectively improve the heat dissipation effect, and avoid the situation that the bearing lubrication effect becomes poor and the operation is unstable due to overheating in the bearing.

[0017] The above description is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation obtained by the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A high-heat-dissipation, wear-resistant plastic bearing, comprising an outer ring, an inner ring, and steel balls disposed between the outer and inner rings, characterized in that: The bearing outer ring includes an outer ring injection molded body and a first metal body, and the bearing inner ring includes an inner ring injection molded body and a second metal body. The outer ring injection molded body has a first guide groove on the side facing the inner ring injection molded body, and the inner ring injection molded body has a second guide groove on the side facing the outer ring injection molded body. The first metal body includes a first metal ring, a plurality of first metal connecting pieces, and a plurality of first metal protrusions on both sides of the outer ring injection molded body. The first metal ring is disposed in the first guide groove, and the first metal connecting pieces are T-shaped and connect the first metal ring and the first metal protrusions on both sides. The second metal body includes a second metal ring, a plurality of second metal connecting pieces, and a plurality of second metal protrusions on both sides of the inner ring injection molded body. The second metal ring is disposed in the second guide groove, and the second metal connecting pieces are T-shaped and connect the second metal ring and the second metal protrusions on both sides.

2. The high heat dissipation and wear-resistant plastic bearing according to claim 1, characterized in that: Both the first metal ring and the second metal ring are provided with multiple oil storage tanks.

3. The high heat dissipation and wear-resistant plastic bearing according to claim 1, characterized in that: The first metal protrusion and the second metal protrusion are hemispherical.

4. The high heat dissipation and wear-resistant plastic bearing according to claim 1, characterized in that: The first metal protrusion and the second metal protrusion are crescent-shaped.

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