Wheel mechanism of sintering machine trolley

Abstract

A sintering machine trolley wheel mechanism belongs to the technical field of sintering machine trolleys. Comprising an axle (11), a first wheel inner ring (3) and a second wheel inner ring (8) are sleeved outside the axle (11), wheels (5) are sleeved on outer rings of the first wheel inner ring (3) and the second wheel inner ring (8), and wheel rollers (7) are arranged between the wheels (5) and the first wheel inner ring (3) and between the wheels (5) and the second wheel inner ring (8). The wheel is characterized in that roller ring grooves are formed in the surfaces of the first wheel inner ring (3) and the second wheel inner ring (8), the wheel rollers (7) are arranged in the roller ring grooves, and the wheel rollers (7) are in cambered surface contact with the roller ring grooves. According to the sintering machine trolley wheel mechanism, the wheel rollers and the roller ring grooves are in cambered surface contact, compared with traditional plane contact, the contact area is increased, and therefore on the premise that the axial load of the wheels is improved, abrasion to the contact faces is reduced, and the service life of the wheels is prolonged.

Description

Technical Field

[0001] The invention discloses a wheel mechanism for a sintering machine trolley, belonging to the technical field of sintering machine trolleys. Background Art

[0002] The sintering machine is the main equipment in the sintering area, and the operating performance of the sintering machine directly affects the stability of sintering production. The sintering machine trolley is a continuous and uninterrupted operating equipment in the production process of the sintering machine, and the wheels of the sintering machine are the guarantee for the reliable operation of the sintering machine trolley. When the sintering machine trolley is in operation, when the sintering machine trolley runs to the position of the sintering machine star wheel, the star wheel gear plate slot is stuck in the wheel of the trolley, driving the sintering machine trolley to flip and move.

[0003] The factors that affect the temperature operation of the sintering machine trolley include the harsh environment with drastic temperature changes. The wheels of the sintering machine trolley often undergo axial deviation during operation. Since the sintering machine trolley itself is heavy, when it deviates during operation, the wheels will be subjected to great axial force, which will further cause the bushing and journal to be severely worn and scrapped.

[0004] In order to improve the bearing capacity of the axial force at the wheel, the technical solution commonly used in the prior art is to set a roller group between the wheel rims, such as: the technical solution disclosed in the Chinese utility model patent with application number 202120445227.2, application date March 2, 2021, and patent name "Sintering machine integrated wheel", roller groups are respectively set on the outer rings of the left inner ring and the right inner ring of the wheel, and a third roller group is separately set between the left inner ring and the right inner ring. Through the third roller group, the axial clearance of the wheel is controlled and a larger axial force can be borne. In the technical solution disclosed in the Chinese utility model patent with application number 201320411946.8, application date July 11, 2013, and patent name "Integrated sintering machine trolley wheel device", roller groups are respectively set on the outer rings of the two inner rings of the wheel, and cross rollers are separately set between the two inner rings. The axial force is borne by the cross rollers, thereby improving the bearing capacity of the device.

[0005] However, during actual implementation, it was found that the above technical solution still has the following problems: when the wheel is subjected to axial force, although the bearing capacity of the wheel for axial force is improved by separately setting the rollers between the inner rings at both ends, the axial force will still be loaded on the rollers mounted on the outside of the inner ring through the inner ring. Since the inner ring and the roller are in planar contact, the roller will still cause friction between the roller and the inner ring after contacting the inner ring. After long-term operation, it will still affect the life of the wheel. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a sintering machine trolley wheel mechanism in which the wheel roller and the roller ring groove have an arc surface contact, which increases the contact area compared to the traditional plane contact. Therefore, under the premise of increasing the axial load at the wheel, the wear on the contact surface is reduced, and the service life of the wheel is extended.

[0007] The technical solution adopted by the utility model to solve the technical problem is as follows: the wheel mechanism of the sintering machine trolley comprises a wheel axle led out from the surface of the vehicle body, a wheel assembly is arranged at the end of the wheel axle, the wheel assembly comprises a group of inner rings sleeved on the wheel axle: a first wheel inner ring and a second wheel inner ring, the wheel is sleeved on the outer rings of the first wheel inner ring and the second wheel inner ring, and wheel rollers are arranged between the wheel and the first wheel inner ring and the second wheel inner ring, and the utility model is characterized in that roller annular grooves are opened on the surfaces of the first wheel inner ring and the second wheel inner ring, the wheel rollers are placed in the roller annular grooves, and the wheel rollers are in arc surface contact with the roller annular grooves.

[0008] Preferably, a wheel roller protrusion is provided on the inner ring of the wheel, the wheel roller protrusion enters into the roller annular groove, and separates the roller annular groove into two independent roller grooves, wheel rollers are respectively provided in the two roller grooves, and there is an arc surface contact between the wheel roller and the wheel roller protrusion.

[0009] Preferably, the outer ends of the first wheel inner ring and the second wheel inner ring are respectively provided with protruding bosses, and the bosses at both ends are spaced apart to form wheel grooves for accommodating the wheels.

[0010] Preferably, annular grooves are respectively formed at both ends of the wheel inner ring, and the annular grooves at both ends are spaced apart from the bosses of the first wheel inner ring and the second wheel inner ring to form inner wheel sealing grooves.

[0011] Preferably, annular grooves are respectively formed on the end surfaces at both ends of the wheel, and the annular grooves at the end surfaces at both ends are spaced apart from the bosses of the first wheel inner ring and the second wheel inner ring to form wheel outer sealing rings.

[0012] Preferably, a clamping wheel assembly is further provided between the wheel assembly and the vehicle body.

[0013] Preferably, the clamping wheel assembly includes a group of clamping wheel inner rings between the clamping wheel assembly and the vehicle body: a first clamping wheel inner ring and a second clamping wheel inner ring, and the outer rings of the first clamping wheel inner ring and the second clamping wheel inner ring are sleeved with clamping wheels.

[0014] Preferably, a card wheel ring groove is opened at the joint of the first card wheel inner ring and the second card wheel inner ring, and both ends of the card wheel ring groove are arc-shaped surfaces; a card wheel roller protrusion is protruding from the inner ring of the card wheel, and both ends of the card wheel roller protrusion are also arc-shaped surfaces. The card wheel roller protrusion separates the card wheel ring groove into two independent card wheel roller grooves, and card wheel rollers are respectively arranged in the two card wheel roller grooves, and the card wheel roller and the roller groove and the card wheel roller protrusion are all in arc surface contact.

[0015] Preferably, grooves are formed at both ends of the first and second card wheel inner rings, and the grooves at the ends of the first and second card wheel inner rings are spaced apart from the card wheel assembly and the vehicle body to form card wheel sealing grooves.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the wheel mechanism of the sintering machine trolley, the wheel roller and the roller ring groove have an arc surface contact, which increases the contact area compared to the traditional plane contact. Therefore, under the premise of increasing the axial load at the wheel, the wear on the contact surface is reduced, thereby extending the service life of the wheel.

[0018] In the sintering machine trolley wheel mechanism, a double-ring sealing structure is formed between the wheel and the first wheel inner ring and the second wheel inner ring, thereby improving the sealing effect.

[0019] In the sintering machine trolley wheel mechanism, the card wheel roller is in arc surface contact with the first card wheel inner ring, the second card wheel inner ring and the card wheel roller protrusion, which increases the axial bearing capacity at the card wheel and improves the service life of the card wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the wheel mechanism structure of the sintering machine trolley.

[0021] Wherein: 1, end cover 2, end cover bolts 3, first wheel inner ring 4, wheel inner sealing groove 5, wheel 6, wheel roller protrusion 7, wheel roller 8, second wheel inner ring 9, card wheel 10, first card wheel inner ring 11, wheel axle 12, card wheel roller 13, second card wheel inner ring 14, card wheel sealing groove 15, vehicle body 16, card wheel roller protrusion 17, wheel outer sealing groove. DETAILED DESCRIPTION

[0022] Figure 1 It is the best embodiment of the utility model, and the following Figure 1 The utility model is further described.

[0023] like Figure 1As shown, a sintering machine trolley wheel mechanism (hereinafter referred to as wheel mechanism) includes a wheel axle 11, which is a multi-section shaft body with different radii. An end cover 1 is fixed to the outermost section of the wheel axle 11 through a plurality of end cover bolts 2. A set of wheel inner rings are clamped on the inner side of the end cover 1: a first wheel inner ring 3 and a second wheel inner ring 8, and a wheel 5 is sleeved on the inner side of the first wheel inner ring 3 and the second wheel inner ring 8.

[0024] Bosses are respectively provided at both ends of the first wheel inner ring 3 and the second wheel inner ring 8, and the bosses at the ends of the first wheel inner ring 3 and the second wheel inner ring 8 are butted together to form a wheel groove for accommodating the wheel 5. Annular grooves are respectively provided at the end faces at both ends of the wheel 5, and the annular grooves at both ends of the wheel 5 and the bosses at the ends of the first wheel inner ring 3 and the second wheel inner ring 8 are spaced to form a wheel outer sealing groove 17.

[0025] After the wheel 5 is inserted into the wheel groove, the two ends of the inner ring of the wheel 5 are spaced apart from the bosses at the ends of the first wheel inner ring 3 and the second wheel inner ring 8 to form an inner wheel sealing groove 4. Seals such as labyrinth seals are respectively arranged in the inner wheel sealing groove 4 and the outer wheel sealing groove 17, thereby realizing a double-ring sealing structure between the wheel 5 and the first wheel inner ring 3 and the second wheel inner ring 8.

[0026] A roller groove monomer is also provided in the middle of the wheel groove formed by the first wheel inner ring 3 and the second wheel inner ring 8, and the two roller grooves in the middle of the first wheel inner ring 3 and the second wheel inner ring 8 are connected to form an annular roller ring groove. Both ends of the roller ring groove formed by the first wheel inner ring 3 and the second wheel inner ring 8 are arc surfaces.

[0027] A wheel roller protrusion 6 is protruding from the inner ring of the wheel 5, and both ends of the wheel roller protrusion 6 are also arc-shaped surfaces. When the wheel 5 is mounted in the wheel groove, the wheel roller protrusion 6 enters the roller annular groove from the outside to the inside, and the wheel roller protrusion 6 divides the roller annular groove into two independent roller grooves. Both ends of the two roller grooves are arc-shaped surfaces. A wheel roller 7 is placed in each of the two roller grooves. In this wheel mechanism, both ends of the cross section of the wheel roller 7 are arc-shaped surfaces.

[0028] Similar to the prior art, the wheel axle 11 is led out from the end of the vehicle body 15, and a card wheel assembly is also mounted between the vehicle body 15 and the second wheel inner ring 8. The card wheel assembly includes a group of card wheel inner rings mounted between the vehicle body 15 and the second wheel inner ring 8: a first card wheel inner ring 10 and a second card wheel inner ring 13, and the card wheel 9 is mounted on the inner side of the first card wheel inner ring 10 and the second card wheel inner ring 13.

[0029] Grooves are respectively formed at both ends of the first and second wheel inner rings 10 and 13. The grooves at the ends of the first and second wheel inner rings 10 and 13 are spaced apart from the second wheel inner ring 8 and the vehicle body 15 to form wheel sealing grooves 14. Seals such as labyrinth seals are respectively arranged in the wheel sealing grooves 14 at both ends, thereby achieving sealing of both ends of the wheel 9.

[0030] A wheel groove monomer is also provided in the middle of the first wheel inner ring 10 and the second wheel inner ring 13, and the two sections of the wheel groove monomer in the middle of the first wheel inner ring 10 and the second wheel inner ring 13 are connected to form an annular wheel ring groove. Both ends of the wheel ring groove formed by the connection of the first wheel inner ring 10 and the second wheel inner ring 13 are arc surfaces.

[0031] The inner ring of the card wheel 9 is provided with a card wheel roller protrusion 16, and both ends of the card wheel roller protrusion 16 are also arc-shaped surfaces. After the card wheel 9 is mounted on the first card wheel inner ring 10 and the outer ring of the second card wheel inner ring 13, the card wheel roller protrusion 16 enters the card wheel ring groove from the outside to the inside, and the card wheel roller protrusion 16 divides the card wheel ring groove into two independent card wheel roller grooves. Both ends of the two sections of the card wheel roller groove are arc-shaped surfaces. A card wheel roller 12 is placed in each of the two card wheel roller grooves, and both ends of the cross section of the card wheel roller 12 are also arc-shaped surfaces.

[0032] The specific working process and working principle are as follows:

[0033] After the card wheel assembly is installed on the wheel axle 11, the first wheel inner ring 3, the second wheel inner ring 8, and the wheel 5 are then installed outside the card wheel assembly, and finally sealed with the end cover 1.

[0034] When the wheel 5 is traveling on the guide rail, when receiving an axial force due to the offset, the wheel roller protrusion 6 of the inner ring of the wheel 5 applies the axial force to the wheel roller 7 on the corresponding side, and the axial force is applied to the first wheel inner ring 3 or the second wheel inner ring 8 through the wheel roller 7. In the present wheel mechanism, since the wheel roller protrusion 6 and the wheel roller 7 are in arc contact, and the wheel roller 7 is in arc contact with the first wheel inner ring 3 or the second wheel inner ring 8, the contact area is increased compared with the traditional plane contact. Therefore, under the premise of increasing the axial load at the wheel, the wear on the contact surface is reduced, and the service life of the wheel is extended.

[0035] When the sintering trolley runs to the position of the sintering machine star wheel, the star wheel gear plate clamping groove clamps the clamping wheel 9, driving the sintering machine trolley to flip and move. At this time, since the clamping wheel roller protrusion 16 of the inner ring of the clamping wheel 9 is also in arc contact with the clamping wheel rollers 12 at both ends, and the clamping wheel rollers 12 are in arc contact with the first clamping wheel inner ring 10 and the second clamping wheel inner ring 13, the axial bearing capacity at the clamping wheel 9 is increased, and the service life of the clamping wheel 9 is improved.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A sintering machine trolley wheel mechanism, comprising a wheel axle (11) extending from a surface of a trolley body (15), a wheel assembly being arranged at the end of the wheel axle (11), the wheel assembly comprising a group of inner rings sleeved on the wheel axle (11): a first wheel inner ring (3) and a second wheel inner ring (8), a wheel (5) being sleeved on the outer rings of the first wheel inner ring (3) and the second wheel inner ring (8), and wheel rollers (7) being arranged between the wheel (5) and the first wheel inner ring (3) and the second wheel inner ring (8), characterized in that: Roller annular grooves are provided on the surfaces of the first wheel inner ring (3) and the second wheel inner ring (8), the wheel rollers (7) are placed in the roller annular grooves, and the wheel rollers (7) are in arc surface contact with the roller annular grooves.

2. The sintering machine trolley wheel mechanism according to claim 1, characterized in that: A wheel roller protrusion (6) is arranged on the inner ring of the wheel (5), the wheel roller protrusion (6) enters into the roller annular groove and separates the roller annular groove to form two independent roller grooves, wheel rollers (7) are arranged in the two roller grooves respectively, and the wheel rollers (7) and the wheel roller protrusion (6) are in arc surface contact.

3. The sintering machine trolley wheel mechanism according to claim 1, characterized in that: The outer ends of the first wheel inner ring (3) and the second wheel inner ring (8) are respectively provided with protruding bosses, and the bosses at both ends are spaced apart to form a wheel groove for accommodating the wheel (5).

4. The sintering machine trolley wheel mechanism according to claim 3, characterized in that: Annular grooves are respectively provided at both ends of the inner ring of the wheel (5), and the annular grooves at both ends are spaced apart from the bosses of the first wheel inner ring (3) and the second wheel inner ring (8) to form a wheel inner sealing ring (4).

5. The sintering machine trolley wheel mechanism according to claim 3, characterized in that: Annular grooves are respectively provided on the end surfaces at both ends of the wheel (5), and the annular grooves at the end surfaces at both ends are spaced apart from the bosses of the first wheel inner ring (3) and the second wheel inner ring (8) to form wheel outer sealing grooves (17).

6. The sintering machine trolley wheel mechanism according to claim 1, characterized in that: A clamping wheel assembly is also provided between the wheel assembly and the vehicle body (15).

7. The sintering machine trolley wheel mechanism according to claim 6, characterized in that: The clamping wheel assembly comprises a group of clamping wheel inner rings between the clamping wheel assembly and the vehicle body (15): a first clamping wheel inner ring (10) and a second clamping wheel inner ring (13), wherein the outer rings of the first clamping wheel inner ring (10) and the second clamping wheel inner ring (13) are sleeved with clamping wheels (9).

8. The sintering machine trolley wheel mechanism according to claim 7, characterized in that: A clamping wheel ring groove is provided at the joint between the first clamping wheel inner ring (10) and the second clamping wheel inner ring (13), and both ends of the clamping wheel ring groove are arc-shaped surfaces; a clamping wheel roller protrusion (16) is provided protrudingly on the inner ring of the clamping wheel (9), and both ends of the clamping wheel roller protrusion (16) are also arc-shaped surfaces. The clamping wheel roller protrusion (16) separates the clamping wheel ring groove into two independent clamping wheel roller grooves, and clamping wheel rollers (12) are respectively provided in the two clamping wheel roller grooves, and the clamping wheel roller (12) is in arc-shaped contact with the roller groove and the clamping wheel roller protrusion (16).

9. The sintering machine trolley wheel mechanism according to claim 7, characterized in that: Grooves are formed at both ends of the first card wheel inner ring (10) and the second card wheel inner ring (13), and the grooves at the ends of the first card wheel inner ring (10) and the second card wheel inner ring (13) are spaced apart from the card wheel assembly and the vehicle body (15) to form card wheel sealing grooves (14).

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