Plastic spraying linear bearing

Abstract

The utility model relates to a linear bearing, in particular to a plastic spraying linear bearing, which comprises a bearing outer cylinder, the retainer is mounted in the bearing outer cylinder; the steel balls are arranged on the retainer; the number of the sealing pieces is two, and the two sealing pieces are connected to the upper end and the lower end of the bearing outer cylinder correspondingly; and the flange plate is connected to the lower part of the bearing outer cylinder through threads. The cylindrical shaft can be guided through the bearing outer barrel, so that the cylindrical shaft does low-friction high-speed linear motion, the steel balls can reduce friction force, energy loss and heat generation, the bearing outer barrel is subjected to plastic spraying surface treatment and has an anti-rust effect, and the bearing outer barrel is longer in service life under the working condition that corrosion is prone to being generated, so that the service life of the bearing outer barrel is prolonged. And the alloy can be used in the working condition of forbidding copper, zinc and nickel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a linear bearing, especially a plastic-spraying linear bearing. BACKGROUND

[0002] Linear bearings are mechanical elements used to achieve linear motion, widely used in various devices and systems requiring precise and smooth linear motion, mainly used for supporting and guiding moving parts and ensuring their reciprocating or continuous linear motion on a predetermined path with minimal friction.

[0003] Most of the linear bearings nowadays are processed through an electroless nickel plating process, which can prevent rust, and the electroless nickel plating process is a technology that deposits a uniform nickel-phosphorus alloy coating on the surface of a metal through a chemical reaction. However, in copper, zinc, and nickel-free working conditions, the plating layer may release nickel ions due to wear or peeling, causing chemical pollution, and is not suitable for copper, zinc, and nickel-free working conditions. SUMMARY

[0004] Therefore, the utility model provides a plastic-spraying linear bearing that overcomes the shortcomings of releasing nickel ions due to wear or peeling of the plating layer in copper, zinc, and nickel-free working conditions, causing chemical pollution, and not being suitable for copper, zinc, and nickel-free working conditions.

[0005] The technical solution is as follows: a plastic-spraying linear bearing includes a bearing outer tube, a retainer installed in the bearing outer tube, steel balls arranged on the retainer, two sealing elements connected to the upper and lower ends of the bearing outer tube, and a flange plate connected to the lower part of the bearing outer tube through threads.

[0006] Further, the bearing outer tube is treated with a plastic-spraying surface treatment.

[0007] Further, the flange plate has through holes uniformly and evenly spaced around the circumference.

[0008] Further, the flange plate has accommodating grooves at the through holes.

[0009] Further, the sealing elements are sealing rings.

[0010] Further, the sealing elements have notches.

[0011] Further, the corners of the bearing outer tube are chamfered.

[0012] Further, the corners of the flange plate are chamfered.

[0013] The beneficial effect is that the bearing outer cylinder can guide the cylindrical shaft, the cylindrical shaft makes low-friction high-speed linear motion, the steel ball can reduce friction, reduce energy loss and heat generation, the bearing outer cylinder is treated by plastic spraying surface treatment, has rust prevention effect, has longer service life in the working condition prone to rust, and can be used in the working condition of copper, zinc and nickel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is the explosion drawing of the utility model.

[0016] Figure 3 It is the three-dimensional structure schematic view of the flange plate, through hole and accommodating groove of the utility model.

[0017] Figure 4 It is the sectional view of the bearing outer cylinder and flange plate of the utility model.

[0018] The names and serial numbers of parts in the drawing are as follows: 1_bearing outer cylinder, 2_retainer, 3_steel ball, 4_seal, 5_flange plate, 6_through hole, 7_accommodating groove. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further described below in combination with the drawings.

[0020] Referring to Figures 1-4 A plastic spraying linear bearing, comprising a bearing outer cylinder 1, a retainer 2, a steel ball 3, a seal 4 and a flange plate 5, the bearing outer cylinder 1 is treated by plastic spraying surface treatment, the bearing outer cylinder 1 is chamfered at the corners, the retainer 2 is installed in the bearing outer cylinder 1, the steel ball 3 is arranged on the retainer 2, the seal 4 is connected to the upper and lower ends of the bearing outer cylinder 1, the seal 4 is a sealing ring, the seal 4 is notched, the flange plate 5 is connected to the lower part of the bearing outer cylinder 1 through screw threads, the flange plate 5 is chamfered at the corners, four through holes 6 are uniformly and spaced apart in the circumferential direction of the flange plate 5, and the accommodating grooves 7 are formed in the through holes 6 of the flange plate 5.

[0021] The worker puts the screw into the through hole 6 of the flange plate 5, fixes the flange plate 5 on the installation plane through the screw, the accommodation groove 7 can accommodate the head of the screw, the corners of the bearing outer cylinder 1 are chamfered, the corners of the flange plate 5 are chamfered, so as to avoid scratching the hands of the worker during installation, then the cylindrical shaft is inserted into the bearing outer cylinder 1, the cylindrical shaft will contact the steel ball 3, the cylindrical shaft does low-friction high-speed linear motion under the guidance of the bearing outer cylinder 1, the steel ball 3 can reduce the friction force, so as to reduce energy loss and heat generation, the bearing outer cylinder 1 is subjected to surface treatment of spraying plastic, has the effect of preventing rust, has a longer service life in a working condition prone to rust, and can be used in a working condition in which copper, zinc and nickel are prohibited, the sealing element 4 also contacts the cylindrical shaft, the sealing element 4 can block dust, metal chips and other small particles from the outside, so as to avoid the dust, metal chips and other small particles from entering the bearing outer cylinder 1, thereby avoiding that the dust, metal chips and other small particles cause abrasion to the steel ball 3, the sealing element 4 has a notch, which is helpful for dispersing stress and reducing fatigue or tearing of the sealing element 4 due to excessive stretching or compression.

[0022] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification 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 plastic-injected linear bearing, characterized in that, The utility model relates to a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) and a bearing outer tube (1) ​ ​ ​ ​ ​ 2. The plastic-injection linear bearing according to claim 1, characterized in that, ​ 3. The plastic-injection linear bearing according to claim 2, characterized in that, ​ 4. The plastic-injection linear bearing according to claim 3, characterized in that, ​ 5. The plastic-injection linear bearing according to claim 4, characterized in that, ​ 6. The plastic-injection linear bearing according to claim 5, characterized in that, ​ 7. The plastic-injection linear bearing according to claim 6, characterized in that, ​

Images