Pearlite gray cast iron for bearing gear

Abstract

The utility model discloses pearlite gray cast iron for a bearing gear, which comprises teeth, a fluted disc connected to one side of the teeth, a first composite layer arranged on the teeth and the fluted disc, a bearing body arranged in the middle of the fluted disc, a second composite layer arranged on the bearing body, and the first composite layer and the second composite layer are matched with each other. According to the bearing gear, multiple positions of the bearing gear can be protected in a multi-layer mode, the bearing capacity is improved, when the gear is damaged, the teeth can be conveniently replaced, and therefore the problem that the whole bearing gear is scrapped is avoided, meanwhile, the pearlite layers are arranged in the first composite layer and the second composite layer, and the service life of the bearing gear is prolonged. The strength of the bearing gear structure can be improved, and most or even all axial stretching or compression force can be borne, so that the using effect of the bearing gear is better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gray cast iron, in particular to pearlite gray cast iron for bearing gears. Background Art

[0002] Gray cast iron refers to cast iron with flake graphite. It is called gray cast iron because the fracture is dark gray when broken. Its main components are iron, carbon, silicon, manganese, sulfur and phosphorus. It is the most widely used cast iron, and its output accounts for more than 80% of the total cast iron output. In order to better ensure that gray cast iron is widely used in the current machine tools, machine bases and gear manufacturing, a pearlite gray cast iron for bearing gears is needed.

[0003] The existing gray cast iron bearing gear castings are only provided with a single layer of protection and strength structure during casting, so that the bearing gear castings cannot be protected and supported multiple times during use, which causes the castings to be damaged.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a pearlite gray cast iron for bearing gears to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A pearlite gray cast iron for a bearing gear comprises teeth, one side of the teeth is connected to a toothed disc, a first composite layer is arranged on the teeth and the toothed disc, a bearing body is arranged in the middle of the toothed disc, and a second composite layer is arranged on the bearing body.

[0008] Furthermore, in order to better ensure the multi-layer protection and strength support effect of the gear casting, the first composite layer includes a first protective layer, a first reinforcement layer is arranged on one side of the first protective layer, and the first reinforcement layer is arranged on one side of the first protective layer.

[0009] Furthermore, in order to facilitate the replacement of the teeth when the gear is damaged, thereby avoiding the scrapping of the entire bearing gear, a connecting protrusion is provided on one side of the tooth, and a plurality of connecting grooves are opened on the gear disc, and the connecting protrusion is adapted to the connecting groove.

[0010] Furthermore, in order to better improve the strength of the bearing gear structure and bear most or even all of the axial tensile or compressive forces, a first pearlite layer is provided between the first protective layer and the first reinforcement layer.

[0011] Furthermore, in order to better ensure the use effect of the gear, the bearing body is composed of a first sleeve, a rotating ball, and a second sleeve. The first sleeve is arranged on the inner side of the gear plate, and the rotating ball is in contact with the second sleeve and the first sleeve.

[0012] Furthermore, in order to better ensure the service strength of the bearing, the second composite layer includes a second protective layer, and a second reinforcement layer is provided on one side of the second protective layer.

[0013] Furthermore, in order to better ensure the use effect, a second pearlite layer is arranged between the second protective layer and the second reinforcement layer, and the second reinforcement layer is adapted to the second protective layer.

[0014] The beneficial effects of the utility model are as follows: through the cooperation between the first composite layer and the second composite layer, multiple positions of the bearing gear can be provided with multi-layer protection and load-bearing capacity, and when the gear is damaged, the teeth can be conveniently replaced, thereby avoiding the problem of the entire bearing gear being scrapped. At the same time, by arranging a pearlite layer in the first composite layer and the second composite layer, the strength of the bearing gear structure can be improved and the bearing capacity of most or even all of the axial tensile or compressive force can be increased, thereby better ensuring the use effect of the bearing gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of pearlite gray cast iron for bearing gears according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the first composite layer structure of pearlite gray cast iron for bearing gears according to an embodiment of the utility model Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the first composite layer structure of pearlite gray cast iron for bearing gears according to an embodiment of the utility model Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the first composite layer structure of pearlite gray cast iron for bearing gears according to an embodiment of the utility model Figure 3 ;

[0020] Figure 5It is a schematic diagram of the second composite layer structure of pearlite gray cast iron for bearing gears according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Teeth; 2. Toothed disc; 3. First composite layer; 301. First protective layer; 302. First reinforcing layer; 303. Pearlite layer; 304. Connecting protrusion; 305. Connecting groove; 4. Bearing body; 5. Second composite layer; 501. Second protective layer; 502. Second reinforcing layer; 503. Second pearlite layer; 6. First bushing; 7. Rotating ball; 8. Second bushing. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] According to an embodiment of the utility model, a pearlite grey cast iron for bearing gears is provided.

[0025] Embodiment 1;

[0026] like Figure 1-5 As shown, according to an embodiment of the utility model, a pearlitic gray cast iron for a bearing gear includes a tooth 1, a tooth plate 2 is connected to one side of the tooth 1, a first composite layer 3 is arranged on the tooth 1 and the tooth plate 2, for ensuring that the tooth 1 and the tooth plate 2 are protected separately, a bearing body 4 is arranged in the middle of the tooth plate 2, and a second composite layer 5 is arranged on the bearing body 4 for protecting the bearing body 4.

[0027] Embodiment 2:

[0028] like Figure 1-5 As shown, according to a pearlite gray cast iron for a bearing gear of an embodiment of the utility model, the first composite layer 3 includes a first protective layer 301, the first protective layer 301 is made of alloy steel, a first reinforcing layer 302 is arranged on one side of the first protective layer 301, the first reinforcing layer 302 is made of cemented carbide, the first reinforcing layer 302 is arranged on one side of the first protective layer 301, a connecting protrusion 304 with a T-shaped structure is arranged on one side of the tooth 1, thirty-two connecting grooves 305 with a T-shaped structure are opened on the tooth disk 2, and the connecting protrusion 304 is matched with the connecting groove 305, and a first pearlite layer 303 is arranged between the first protective layer 301 and the first reinforcing layer 302.

[0029] In actual application, by setting the first composite layer 3 in the teeth 1 and the toothed disc 2, multiple positions of the bearing gear can be provided with multi-layer protection and load-bearing capacity, and by setting the teeth 1 and the toothed disc 2 as separate bodies, the teeth 1 can be conveniently replaced when the gear is damaged, thereby avoiding the problem of the entire bearing gear being scrapped. At the same time, by setting the first pearlite layer 303, the strength of the bearing gear structure can be improved, and the bearing capacity of most or even all of the axial tensile or compressive force can be increased, thereby better ensuring the use effect of the bearing gear.

[0030] Embodiment three;

[0031] like Figure 1-5 As shown, according to an embodiment of the utility model, a pearlite gray cast iron bearing gear is used, the bearing body 4 is composed of a first sleeve 6, a rotating ball 7, and a second sleeve 8. The first sleeve 6 is arranged on the inner side of the toothed disc 2, and the rotating ball 7 is in contact with the second sleeve 8 and the first sleeve 6;

[0032] The second composite layer 5 includes a second protective layer 501 , a second reinforcement layer 502 is disposed on one side of the second protective layer 501 , a second pearlite layer 503 is disposed between the second protective layer 501 and the second reinforcement layer 502 , and the second reinforcement layer 502 is adapted to the second protective layer 501 .

[0033] In actual application, by setting the second composite layer 5 in the first sleeve 6 and the second sleeve 8, multiple positions of the bearing can be provided with multi-layer protection and load-bearing capacity. At the same time, by setting the second pearlite layer 503, the strength of the bearing gear structure can be improved and most or even all of the axial tensile or compressive forces can be carried, thereby better ensuring the use effect of the bearing.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0035] In summary, with the aid of the above-mentioned technical scheme of the utility model, by arranging the first composite layer 3 in the teeth 1 and the toothed disc 2, multiple positions of the bearing gear can be provided with multi-layer protection and load-bearing capacity, and by arranging the teeth 1 and the toothed disc 2 as separate bodies, the teeth 1 can be conveniently replaced when the gear is damaged, thereby avoiding the problem of the entire bearing gear being scrapped, and at the same time, by arranging the first pearlite layer 303, the strength of the bearing gear structure can be improved and the bearing capacity of most or even all of the axial tensile or compressive force can be carried, thereby better ensuring the use effect of the bearing gear, and by arranging the second composite layer 5 in the first sleeve 6 and the second sleeve 8, multiple positions of the bearing can be provided with multi-layer protection and load-bearing capacity, and at the same time, by arranging the second pearlite layer 503, the strength of the bearing gear structure can be improved and the bearing capacity of most or even all of the axial tensile or compressive force can be carried, thereby better ensuring the use effect of the bearing.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pearlite gray cast iron for bearing gears, characterized in that: The invention comprises a tooth (1), one side of the tooth (1) is connected to a toothed disc (2), a first composite layer (3) is arranged on the tooth (1) and the toothed disc (2), a bearing body (4) is arranged in the middle of the toothed disc (2), and a second composite layer (5) is arranged on the bearing body (4).

2. The pearlite gray cast iron for bearing gear according to claim 1, characterized in that: The first composite layer (3) comprises a first protective layer (301), a first reinforcement layer (302) is arranged on one side of the first protective layer (301), and the first reinforcement layer (302) is arranged on one side of the first protective layer (301).

3. The pearlite gray cast iron for bearing gear according to claim 2, characterized in that: A connecting protrusion (304) is provided on one side of the tooth (1), a plurality of connecting grooves (305) are provided on the toothed disc (2), and the connecting protrusion (304) is adapted to fit the connecting grooves (305).

4. The pearlite gray cast iron for bearing gear according to claim 3, characterized in that: A first pearlite layer (303) is provided between the first protective layer (301) and the first reinforcement layer (302).

5. The pearlite gray cast iron for bearing gear according to claim 4, characterized in that: The bearing body (4) is composed of a first sleeve (6), a rotating ball (7), and a second sleeve (8); the first sleeve (6) is arranged on the inner side of the toothed disc (2); and the rotating ball (7) is in contact with the second sleeve (8) and the first sleeve (6).

6. The pearlite grey cast iron for bearing gear according to claim 5, characterized in that: The second composite layer (5) comprises a second protective layer (501), and a second reinforcement layer (502) is provided on one side of the second protective layer (501).

7. The pearlite grey cast iron for bearing gears according to claim 6, characterized in that: A second pearlite layer (503) is provided between the second protective layer (501) and the second reinforcement layer (502), and the second reinforcement layer (502) is adapted to the second protective layer (501).

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