High-bearing-capacity metal roller

Abstract

The utility model provides a high-bearing-capacity metal roller, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The high-bearing-capacity metal rolling wheel comprises a support and a wheel body, the support is in a U shape, the U-shaped bottom of the support faces upwards and is a first connecting part used for being connected with a frame, a second connecting part is arranged at a U-shaped end opening of the support, the wheel body is movably connected to the second connecting part, the wheel body comprises an inner wheel and an outer wheel, and the inner wheel is connected with the outer wheel. The inner wheel is movably connected to the second connecting portion, the outer wheel is annular and sleeved on the inner wheel, a positioning structure capable of fixing the outer wheel and the inner wheel in the circumferential direction is arranged between the outer wheel and the inner wheel, the inner wheel is made of plastic materials, and the outer wheel is made of metal materials. The high-bearing-capacity metal roller is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a high-load-bearing metal roller. Background Art

[0002] Metal rollers are used in casters and other occasions, and existing metal rollers are usually made of one-piece metal materials. The above-mentioned metal rollers consume a lot of metal materials, resulting in a relatively high cost.

[0003] The roller is connected to the bracket through a pin. When it is used in high-load situations, it is easy to cause deformation and damage at the pin due to the lack of buffering, and its stability is relatively poor. Summary of the invention

[0004] The purpose of the utility model is to provide a high-load-bearing metal roller with high stability and compact structure in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A high-load-bearing metal roller comprises a bracket and a wheel body, the bracket is U-shaped, the U-shaped bottom of the bracket faces upward and the U-shaped bottom of the bracket is a connecting part 1 for connecting to a frame, the U-shaped end of the bracket is a connecting part 2, and the wheel body is movably connected at the connecting part 2. It is characterized in that the wheel body comprises an inner wheel and an outer wheel, the inner wheel is movably connected at the connecting part 2, the outer wheel is annular and the outer wheel is sleeved on the inner wheel, a positioning structure is provided between the outer wheel and the inner wheel to fix the two circumferentially, the inner wheel is made of plastic material, and the outer wheel is made of metal material.

[0007] In the above-mentioned high-load-bearing metal roller, the inner wheel is movably connected to the second connection portion through a pin shaft.

[0008] Since the outer wheel of the high-load metal roller is made of metal material and the inner wheel is made of plastic material, the inner wheel itself can play an appropriate buffering role in high-load situations, effectively avoiding excessive force on the pin shaft, and effectively improving the stability of the entire metal roller.

[0009] The outer wheel and the inner wheel are made of different materials, and the stability of the existing glue connection is relatively poor. The metal roller creatively connects the outer wheel and the inner wheel through a positioning structure, effectively overcoming the above defects and further improving the stability of the entire metal roller.

[0010] In the above-mentioned high-load metal roller, the positioning structure includes a positioning notch, a positioning hole, a positioning groove, a positioning ring and a latch. The positioning notch is located on the inner side of the outer wheel, and the positioning groove is annularly recessed into the side of the inner wheel with the pin shaft as the center. One end of the positioning hole is located on the outer side of the inner wheel, and the other end of the positioning hole is connected to the positioning groove. One end of the latch is embedded in the positioning notch, and the other end of the latch is located at the positioning hole. The positioning ring is tightly connected to the positioning groove and the other end of the latch rests against the side of the positioning ring.

[0011] The latch is connected to the positioning notch and the positioning hole at the same time. The positioning ring tightly connected to the positioning groove abuts against the latch, so this structure can ensure that the latch is stably connected to the inner wheel and the outer wheel, thus ultimately ensuring that the outer wheel is stably connected to the inner wheel.

[0012] In the above-mentioned high-load metal roller, the positioning ring is made of flexible material.

[0013] In the above-mentioned high-load metal roller, the positioning ring is made of rubber material.

[0014] The flexible positioning ring can avoid excessive rigid contact between the latch and the outer wheel and has a certain buffering effect.

[0015] In the above-mentioned high-load metal roller, the pin includes a rigid pin shaft 1 and a flexible pin shaft 2, the outer end of the above-mentioned pin shaft 1 is embedded in the positioning recess, the inner end of the above-mentioned pin shaft 1 is embedded in the positioning hole, one end of the above-mentioned pin shaft 2 is connected to the inner end of the pin shaft 1, and the other end of the pin shaft 2 rests on the positioning ring.

[0016] Such a structure can make the entire latch non-rigid and can play an appropriate buffering role.

[0017] In the above-mentioned high-load-bearing metal roller, the inner end of the first pin has a recessed positioning seat, the second pin matches the positioning seat and the second pin is tightly fitted and connected to the positioning seat.

[0018] The first pin shaft and the second pin shaft can be stably connected through the positioning seat.

[0019] In the above-mentioned high-load-bearing metal roller, the two inner ends of the pin shaft are contact portions that match the outer side of the positioning ring, and the above-mentioned contact portions are in surface contact with the positioning ring.

[0020] The surface contact method can improve the contact stability between the second pin and the locating ring.

[0021] In the above-mentioned high-load-bearing metal roller, the second pin is made of rubber material.

[0022] The pin shaft 2 made of rubber material can further improve the cushioning performance.

[0023] In the above-mentioned high-load-bearing metal roller, the number of the positioning structures is several, and the several positioning structures are evenly distributed on the outer side of the inner wheel in the circumferential direction with the pin as a reference.

[0024] Multiple positioning structures can further improve the connection stability and buffering performance of the inner wheel and the outer wheel.

[0025] Compared with the prior art, there is a gap between the inner wheel and the outer wheel in the high-load metal roller, and the two ends of the pin shaft are respectively connected to the outer wheel and the inner wheel. Since the pin shaft itself can achieve buffering, it can absorb the force of the metal roller in a high-load environment, and its stability is relatively high.

[0026] At the same time, the positioning structure is located between the inner wheel and the outer wheel, and its structure is relatively compact, with high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the high-load-bearing metal roller.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the high-load-bearing metal roller.

[0029] In the figure, 1, bracket; 1a, connecting part 1; 1b, connecting part 2; 2, inner wheel; 2a, positioning hole; 2b, positioning groove; 3, outer wheel; 3a, positioning notch; 4, positioning ring; 5, latch; 5a, pin shaft 1; 5a1, positioning seat; 5b, pin shaft 2; 5b1, contact part; 6, pin shaft. DETAILED DESCRIPTION

[0030] 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.

[0031] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0033] like Figure 1 As shown, the high-load-bearing metal roller includes a bracket 1 and a wheel body, the bracket 1 is U-shaped, the U-shaped bottom of the bracket 1 faces upward and the U-shaped bottom of the bracket is a connecting part 1a for connecting to a frame, the U-shaped end of the bracket 1 is a connecting part 2 1b, and the wheel body is movably connected at the connecting part 2 1b.

[0034] like Figure 1 and Figure 2 As shown, the wheel body includes an inner wheel 2 and an outer wheel 3, the inner wheel 2 is movably connected at the connecting portion 1b, the outer wheel 3 is annular and is sleeved on the inner wheel 2, and a positioning structure is provided between the outer wheel 3 and the inner wheel 2 to fix the two circumferentially, the inner wheel 2 is made of plastic material, and the outer wheel 3 is made of metal material.

[0035] The inner wheel 2 is movably connected to the connecting portion 2 1b via a pin 6.

[0036] The positioning structure includes a positioning notch 3a, a positioning hole 2a, a positioning groove 2b, a positioning ring 4 and a latch 5. The positioning notch 3a is located on the inner side of the outer wheel 3. The positioning groove 2b is annularly recessed into the side of the inner wheel 2 with the pin shaft 5 as the center. One end of the positioning hole 2a is located on the outer side of the inner wheel 2, and the other end of the positioning hole 2a is connected to the positioning groove 2b. One end of the latch 5 is embedded in the positioning notch 3a, and the other end of the latch 5 is located at the positioning hole 2a. The positioning ring 4 is tightly connected to the positioning groove 2b and the other end of the latch 5 rests on the side of the positioning ring 4.

[0037] The positioning ring 4 is made of a flexible material. In this embodiment, the positioning ring 4 is made of a rubber material.

[0038] The latch 5 includes a rigid pin shaft 1 5a and a flexible pin shaft 2 5b. The outer end of the pin shaft 1 5a is embedded in the positioning recess 3a, and the inner end of the pin shaft 1 5a is embedded in the positioning hole 2a. One end of the pin shaft 2 5b is connected to the inner end of the pin shaft 1 5a, and the other end of the pin shaft 2 5b rests on the positioning ring 4.

[0039] The inner end of the pin shaft 1 5a has a recessed positioning seat 5a1, and the pin shaft 2 5b matches the positioning seat 5a1 and the pin shaft 2 5b is tightly fitted and connected to the positioning seat 5a1.

[0040] The inner end of the second pin shaft 5 b is a contact portion 5 b 1 matching the outer side of the positioning ring 4 , and the contact portion 5 b 1 is in surface contact with the positioning ring 4 .

[0041] The pin shaft 2 5b is made of rubber material.

[0042] The number of the positioning structures is several, and the positioning structures are evenly distributed on the outer side of the inner wheel 2 in the circumferential direction with the pin shaft 6 as a reference.

[0043] Since the outer wheel of the high-load metal roller is made of metal material and the inner wheel is made of plastic material, the inner wheel itself can play an appropriate buffering role in high-load situations, effectively avoiding excessive force on the pin shaft, and effectively improving the stability of the entire metal roller.

[0044] Specifically, there is a gap between the inner wheel and the outer wheel, and the pin shaft located between the inner wheel and the outer wheel can achieve buffering, so that the entire metal roller can be used stably even in high-load situations.

[0045] The outer wheel and the inner wheel are made of different materials, and the stability of the existing glue connection is relatively poor. The metal roller creatively connects the outer wheel and the inner wheel through a positioning structure, effectively overcoming the above defects and further improving the stability of the entire metal roller.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A high-load-bearing metal roller, comprising a bracket and a wheel body, wherein the bracket is U-shaped, the bottom of the U-shaped bracket faces upward and the bottom of the U-shaped bracket is a connection part 1 for connecting with a frame, the U-shaped end of the bracket is a connection part 2, and the wheel body is movably connected to the connection part 2, characterized in that: The wheel body comprises an inner wheel and an outer wheel, the inner wheel is movably connected at two connecting parts, the outer wheel is annular and is sleeved on the inner wheel, a positioning structure is provided between the outer wheel and the inner wheel to fix the two circumferentially, the inner wheel is made of plastic material, and the outer wheel is made of metal material.

2. The high-load-bearing metal roller according to claim 1, characterized in that: The inner wheel is movably connected to the second connection part through a pin shaft.

3. The high load-bearing metal roller according to claim 2, characterized in that: The positioning structure includes a positioning notch, a positioning hole, a positioning groove, a positioning ring and a latch, wherein the positioning notch is located on the inner side of the outer wheel, the positioning groove is annular and recessed into the side of the inner wheel with the pin shaft as the center, one end of the positioning hole is located on the outer side of the inner wheel, and the other end of the positioning hole is connected to the positioning groove, one end of the latch is embedded in the positioning notch, and the other end of the latch is located at the positioning hole, the positioning ring is tightly fitted and connected to the positioning groove, and the other end of the latch rests against the side of the positioning ring.

4. The high-load-bearing metal roller according to claim 3, characterized in that: The positioning ring is made of flexible material.

5. The high-load-bearing metal roller according to claim 4, characterized in that: The positioning ring is made of rubber material.

6. The high-load-bearing metal roller according to claim 5, characterized in that: The latch includes a rigid pin shaft 1 and a flexible pin shaft 2, wherein the outer end of the pin shaft 1 is embedded in the positioning notch, the inner end of the pin shaft 1 is embedded in the positioning hole, one end of the pin shaft 2 is connected to the inner end of the pin shaft 1, and the other end of the pin shaft 2 rests on the positioning ring.

7. The high-load-bearing metal roller according to claim 6, characterized in that: The inner end of the pin shaft 1 is provided with a recessed positioning seat, and the pin shaft 2 matches the positioning seat and is tightly fitted and connected to the positioning seat.

8. The high-load-bearing metal roller according to claim 7, characterized in that: The two inner ends of the pin shaft are contact parts matching the outer side of the positioning ring, and the contact parts are in surface contact with the positioning ring.

9. The high-load-bearing metal roller according to claim 8, characterized in that: The second pin is made of rubber material.

10. The high-load bearing metal roller according to claim 9, characterized in that: The number of the positioning structures is several, and the several positioning structures are evenly distributed on the outer side of the inner wheel in the circumferential direction with the pin shaft as a reference.

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