Polyurethane roller convenient to assemble

Abstract

A polyurethane rolling wheel convenient to assemble comprises an inner bearing, an outer bearing is installed on the outer ring of the inner bearing, a retainer is arranged between the outer ring of the inner bearing and the inner ring of the outer bearing, a plurality of balls distributed in the circumferential direction are embedded in the retainer, an assembly frame is installed on the outer ring of the outer bearing, and the assembly frame is provided with a bearing. A polyurethane wheel body is movably installed on the assembly frame, a plurality of push rods are arranged on the assembly frame, a plurality of connecting cylinders are fixedly connected to the assembly frame, positioning frames are fixedly connected into the connecting cylinders, clamping plates which are symmetrically distributed are arranged on the positioning frames in a sliding mode, and first elastic pieces are arranged on the clamping plates in a sleeving mode. Through cooperation of the push rod and the clamping plate, after the bearing is installed in the polyurethane wheel body, the push rod is rotated to extrude the clamping plate, so that the clamping plate is opened to clamp and fix the polyurethane wheel body, assembly is achieved, time and labor are saved, and the assembly effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to a polyurethane roller, in particular to a polyurethane roller which is convenient to assemble. Background Art

[0002] Polyurethane rollers are industrial rollers made of polyurethane material, which have the characteristics of high strength and high wear resistance. Under high speed and heavy load conditions, polyurethane rollers can effectively ensure the stability and service life of the rollers, while also better protecting equipment and machines.

[0003] At present, the polyurethane roller is composed of two parts, a wheel body and a bearing. In the production of polyurethane rollers, the wheel body and the bearing need to be assembled. At present, the assembly is generally performed manually. The bearing is manually installed into the wheel body, and then a rubber hammer is used to hit the bearing to press it into the wheel body. The assembly is completed in this way. However, the assembly method is time-consuming, labor-intensive, and inconvenient. In addition, it is easy for manual labor to not hit the roller in place, which may cause problems such as loosening and offset of the wheel body or the bearing during subsequent use.

[0004] Therefore, it is urgent to provide a polyurethane roller that is easy to assemble to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the current manual assembly method of polyurethane rollers, which is time-consuming, labor-intensive, inconvenient, and easily improperly assembled, and which may easily cause the wheel body or bearing to become loose or offset during subsequent use, the utility model provides a polyurethane roller that is easy to assemble.

[0006] To solve the above problems, the utility model adopts the following technical scheme: a polyurethane roller that is easy to assemble, comprising an inner bearing, an outer bearing is installed on the outer ring of the inner bearing, a retaining frame is arranged between the outer ring of the inner bearing and the inner ring of the outer bearing, a plurality of balls distributed along the circumferential direction are embedded on the retaining frame, an assembly frame is installed on the outer ring of the outer bearing, a polyurethane wheel body is movably mounted on the assembly frame, a plurality of push rods are arranged on the assembly frame, a plurality of connecting tubes are fixedly connected to the assembly frame, and the plurality of connecting tubes correspond to the plurality of push rods one by one, a positioning frame is fixedly connected in the connecting tube, a symmetrically distributed card plate is slidably arranged on the positioning frame, the lower end of the push rod extends into the connecting tube and contacts and cooperates with the card plate, and a first elastic member is sleeved on the card plate.

[0007] Furthermore, the middle section of the push rod is provided with a circle of threads.

[0008] Furthermore, the push rod is conical.

[0009] Furthermore, a support frame is fixedly connected to the assembly frame, a connecting frame is slidably arranged on the support frame, a clamping block is fixedly connected to the connecting frame, the clamping block is located above the push rod, the clamping block can be moved downward to clamp into the push rod for fixing, and a second elastic member is sleeved on the connecting frame.

[0010] Furthermore, a mounting seat is fixedly connected to the inner bearing, a plurality of limit frames are fixedly connected to the mounting seat, a clamping rod is slidably provided on the limit frame, the clamping rod penetrates into the mounting seat, and a third elastic member is sleeved on the clamping rod.

[0011] Furthermore, a fixing frame is clamped on the polyurethane wheel body, and a cleaning scraper is provided on a side of the fixing frame that contacts the polyurethane wheel body.

[0012] Furthermore, a protective sleeve is sleeved on the clamping rod, and the third elastic member is located inside the protective sleeve.

[0013] Furthermore, a protective shell is provided on the connecting tube.

[0014] Compared with the prior art, the utility model has the following technical effects: 1. Through the cooperation of the push rod and the clamping plate, after the bearing is installed in the polyurethane wheel body, the push rod is rotated to squeeze the clamping plate, so that it opens and clamps the polyurethane wheel body to fix it, thereby realizing assembly, saving time and effort, and ensuring the assembly effect.

[0015] 2. By moving the clamping block downward, the push rod can be inserted and fixed after the polyurethane roller is assembled to prevent the push rod from loosening or rotating.

[0016] 3. By setting the clamping rod, when the polyurethane roller is installed into the rotating shaft, it can be clamped into the hole on the rotating shaft to fix the rotating shaft and the bearing, so as to prevent the rotating shaft or the bearing from moving up and down or left and right during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the inner bearing, the assembly frame and the outer bearing of the utility model.

[0019] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the connecting cylinder, the push rod and the clamping plate of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the positioning frame, the clamping plate and the first elastic member of the utility model.

[0021] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the connecting tube, the push rod and the supporting frame of the utility model.

[0022] Figure 6It is a three-dimensional cross-sectional structural schematic diagram of the connecting frame, the clamping block and the second elastic member of the utility model.

[0023] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the mounting seat, the limiting frame and the clamping rod of the utility model.

[0024] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the fixing frame, the cleaning scraper and the polyurethane roller of the utility model.

[0025] The names and serial numbers of the parts in the figure are: 1-inner bearing, 2-outer bearing, 201-ball, 202-retaining frame, 3-assembly frame, 4-polyurethane wheel body, 5-connecting cylinder, 6-push rod, 7-positioning frame, 8-clamping plate, 9-first elastic member, 10-support frame, 11-connecting frame, 12-clamping block, 13-second elastic member, 14-mounting seat, 15-limiting frame, 16-clamping rod, 17-third elastic member, 18-fixed frame, 19-cleaning scraper, 20-protective sleeve, 21-protective shell. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8A polyurethane roller convenient for assembly comprises an inner bearing 1, an outer bearing 2 is mounted on the outer ring of the inner bearing 1, a retaining frame 202 is arranged between the outer ring of the inner bearing 1 and the inner ring of the outer bearing 2, a plurality of balls 201 distributed along the circumferential direction are embedded on the retaining frame 202, an assembly frame 3 is mounted on the outer ring of the outer bearing 2, a polyurethane wheel body 4 is movably mounted on the assembly frame 3, four push rods 6 are arranged on the assembly frame 3, a circle of threads is arranged in the middle section of the push rods 6, under the action of the threads, the rotational motion of the push rods 6 can be converted into linear downward motion, four connecting tubes 5 are fixedly connected to the bottom of the assembly frame 3 by welding, the four connecting tubes 5 correspond to the four push rods 6 one by one, a positioning frame 7 is fixedly connected to the lower end of the inner part of the connecting tube 5 by welding, and the positioning frame 7 is slidingly provided with left and right symmetrical parts. The two card plates 8 of the cloth, the lower end of the push rod 6 extends into the connecting tube 5 and contacts and cooperates with the card plate 8. The push rod 6 is tapered, and the push rod 6 moves downward to squeeze the card plate 8 to move outward to clamp and fix the polyurethane wheel body 4. The card plate 8 is sleeved with a first elastic member 9, and the two ends of the first elastic member 9 are respectively connected to the card plate 8 and the positioning frame 7. The connecting tube 5 is sleeved with a protective shell 21. Before assembly, the protective shell 21 is used to seal the connecting tube 5 to prevent foreign matter from entering. A fixing frame 18 is clamped on the polyurethane wheel body 4, and a cleaning scraper 19 is provided on the side of the fixing frame 18 that contacts the polyurethane wheel body 4. When the polyurethane roller is in operation, the fixing frame 18 is removed. When the surface of the polyurethane roller needs to be cleaned, it is re-stuck, and the cleaning scraper 19 is used to scrape off surface debris.

[0029] During actual assembly, the bearing is installed into the polyurethane wheel body 4, and then the push rod 6 is rotated to move the push rod 6 downward to squeeze the clamping plate 8. The first elastic member 9 is compressed accordingly, and the clamping plate 8 opens outward to clamp the polyurethane wheel body 4, thereby completing the installation.

[0030] Example 2

[0031] Based on Example 1, please refer to Figure 5 and Figure 6 A support frame 10 is fixedly connected to the top of the assembly frame 3 by welding, and a connecting frame 11 is slidably arranged on the support frame 10. Four clamping blocks 12 are fixedly connected to the connecting frame 11. The clamping blocks 12 are located above the push rod 6. After the polyurethane roller is installed, the clamping blocks 12 move down and can be clamped into the push rod 6 for fixing to prevent the push rod 6 from loosening or rotating. A second elastic member 13 is sleeved on the connecting frame 11, and the second elastic member 13 is used to assist the clamping blocks 12 in resetting.

[0032] See also Figure 7A mounting seat 14 is fixedly connected to the bottom of the inner bearing 1, and four limiting frames 15 distributed along the circumferential direction are fixedly connected to the mounting seat 14. A clamping rod 16 is slidably arranged on the limiting frame 15. The clamping rod 16 penetrates into the mounting seat 14, and a third elastic member 17 is sleeved on the clamping rod 16. The two ends of the third elastic member 17 are respectively connected to the clamping rod 16 and the limiting frame 15. A protective sleeve 20 is sleeved on the clamping rod 16, and the third elastic member 17 is located in the protective sleeve 20. The protective sleeve 20 is used to protect the third elastic member 17.

[0033] After the polyurethane wheel body 4 is assembled as a whole and needs to be installed into the rotating shaft, the rotating shaft squeezes the clamping rod 16 to move outward, and the third elastic member 17 is compressed accordingly. When the clamping rod 16 is aligned with the hole on the rotating shaft, the clamping rod 16 is reset and clamped into the hole under the elastic force of the third elastic member 17 to fix the rotating shaft and the bearing, thereby preventing the rotating shaft or the bearing from moving up and down or left and right during operation.

[0034] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A polyurethane roller convenient for assembly, comprising an inner bearing (1), an outer bearing (2) being mounted on the outer ring of the inner bearing (1), a retaining frame (202) being arranged between the outer ring of the inner bearing (1) and the inner ring of the outer bearing (2), a plurality of balls (201) being embedded in the retaining frame (202) and distributed along the circumferential direction, an assembly frame (3) being mounted on the outer ring of the outer bearing (2), a polyurethane wheel body (4) being movably mounted on the assembly frame (3), wherein: The assembly frame (3) is provided with a plurality of push rods (6), the assembly frame (3) is fixedly connected with a plurality of connecting tubes (5), the plurality of connecting tubes (5) correspond to the plurality of push rods (6) one by one, a positioning frame (7) is fixedly connected in the connecting tube (5), a symmetrically distributed clamping plate (8) is slidably arranged on the positioning frame (7), the lower end of the push rod (6) extends into the connecting tube (5) and contacts and cooperates with the clamping plate (8), and a first elastic member (9) is sleeved on the clamping plate (8).

2. A polyurethane roller that is easy to assemble according to claim 1, characterized in that: The middle section of the push rod (6) is provided with a circle of threads.

3. A polyurethane roller that is easy to assemble according to claim 1, characterized in that: The push rod (6) is conical.

4. A polyurethane roller that is easy to assemble according to claim 1, characterized in that: A support frame (10) is fixedly connected to the assembly frame (3), a connecting frame (11) is slidably arranged on the supporting frame (10), a clamping block (12) is fixedly connected to the connecting frame (11), the clamping block (12) is located above the push rod (6), the clamping block (12) can be moved downward to clamp into the push rod (6) for fixing, and a second elastic member (13) is sleeved on the connecting frame (11).

5. A polyurethane roller that is easy to assemble according to claim 1, characterized in that: The inner bearing (1) is fixedly connected to a mounting seat (14), the mounting seat (14) is fixedly connected to a plurality of limit frames (15), a clamping rod (16) is slidably arranged on the limit frame (15), the clamping rod (16) penetrates into the mounting seat (14), and a third elastic member (17) is sleeved on the clamping rod (16).

6. A polyurethane roller that is easy to assemble according to claim 1, characterized in that: A fixing frame (18) is clamped on the polyurethane wheel body (4), and a cleaning scraper (19) is provided on the side of the fixing frame (18) that contacts the polyurethane wheel body (4).

7. A polyurethane roller that is easy to assemble according to claim 5, characterized in that: The clamping rod (16) is sleeved with a protective sleeve (20), and the third elastic member (17) is located inside the protective sleeve (20).

8. The polyurethane roller that is easy to assemble according to claim 1, characterized in that: The connecting tube (5) is sleeved with a protective shell (21).

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