CN217651266U

CN217651266U - Surface quenching device of winch drum body

Info

Publication number: CN217651266U
Application number: CN202220728278.0U
Authority: CN
Inventors: 张正芳; 范悦栓; 王记昌; 何军国; 赵旭平
Original assignee: RG Petro Machinery Group Co Ltd
Current assignee: RG Petro Machinery Group Co Ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-10-25
Anticipated expiration: 2032-08-02

Abstract

The invention provides a surface quenching device of a winch roller body, which drives the roller body to rotate through the rotation of a quenching device, thereby realizing the induction quenching of the inner side of the whole roller body. The whole structure of the applicable roller body is formed by assembling and welding the left connecting hub and the right connecting hub with the roller body, the inner sides of the left connecting hub and the right connecting hub are subjected to surface induction quenching after the whole structure is processed to be alive, and the depth of a hardening layer is 3-5mm, so that the wear resistance of the roller body is ensured. Compared with the prior art, the quenching device has the advantages that the requirement on the wear resistance of the inner side surface of the roller body is met through surface induction quenching, a wear-resistant plate is not required to be arranged, the manufacturing difficulty and the manufacturing cost are reduced, and the welding performance of parts is improved; meanwhile, induction quenching of the inner side surfaces of the roller bodies with different diameters and different thicknesses is realized, and the uniformity of a hardening layer is ensured.

Description

Surface quenching device for winch drum body

Technical Field

The invention relates to the technical field of manufacturing of oil rig equipment, in particular to manufacturing of a winch drum body for an oil rig.

Background

The winch is a core component of the petroleum drilling machine, a main roller in the winch is an important component of the winch and is used for winding a steel wire rope of a winch traveling system to drive a hook of the traveling block to move, and a roller body is a main component of the winch and mainly comprises a roller body, a rope groove plate, a left connecting hub, a right connecting hub and the like. The structure and the process method of the existing winch roller body mainly comprise two types, one type is that the left connecting hub and the right connecting hub are steel castings or assembly welding parts and form the roller body after being assembled and welded with a middle rope groove plate or a roller body; and the other way is to add wear-resisting plates on the inner sides of the left and right connecting hubs to improve the wear resistance of the roller body. The failure modes of the roller body are various, one of the failure modes is that the inner gear side plates at two ends of the roller body and the steel wire rope are mutually extruded and rubbed to cause abrasion, so that the gear span in the roller body is changed to cause rope disorder, and the abrasion resistance of the inner side surface of the roller body is also required to be improved.

The first structure and the process method have the following problems: in order to improve the wear resistance of the inner side of the roller body, the left connecting hub and the right connecting hub are reasonably selected from alloy steel, and the hardness of the connecting hubs is improved through quenching and tempering. However, a large amount of welding exists in the structure, the welding performance of the alloy steel is poor, and the difficulty in welding the alloy steel with the cylinder or the rope groove plate is high. The second structure and the manufacturing method have the following problems: the manufacturing process of the wear-resisting plate is complex, the wear-resisting plate belongs to a large plane thin plate, the flatness of the wear-resisting plate needs to be ensured, and the processing difficulty is high; in addition, in order to improve the wear resistance of the wear-resistant plate, the wear-resistant plate needs to be subjected to surface treatment, and a surface quenching or chemical nitriding method is generally selected, so that the large surface quenching thin plate is easy to deform and has large deformation amount, and the large surface nitriding part has high operation difficulty and high cost; in addition, the addition of the wear-resisting plate reduces the thickness of the side plates of the left and right connecting hubs, which can affect the extrusion resistance of the drum body.

Disclosure of Invention

In order to avoid the problems, the invention aims to provide a surface quenching device for a winch roller body, which can be used for directly quenching the inner side surface of the winch roller body after butt welding so as to improve the hardness and the wear resistance of the inner side of the roller body, and has universality and stability.

In order to achieve the purpose, the invention adopts the technical scheme that: the surface quenching device mainly comprises a rolling rod, a main shaft bracket, a bearing seat, a bearing cover, a base, a cross brace, a driving gear, a driven gear, a gearbox and a motor; through holes are formed in two ends of the main shaft support, the rolling rod penetrates through the main shafts and is supported on the main shaft support through the through holes, and the two main shafts are kept parallel; a bearing seat is welded on the outer side of the through hole in the main shaft bracket, and the bearing is installed in the bearing seat to realize the rotation of the rolling rod and the main shaft; one end of the main shaft is provided with the driven gear which is connected with the gearbox and the motor through the driving gear; the rolling rod, the main shaft support and the like are all arranged on the base, and the base and the main shaft support are connected together through the cross support to form a whole set of quenching device. The technical scheme of the winch roller body applicable to the surface quenching device is as follows: the integral structure of the winch drum body is formed by assembling and welding a left connecting hub, a right connecting hub and a drum body, the inner sides of the left connecting hub and the right connecting hub are subjected to surface induction quenching after the integral structure is integrally processed, and the depth of a hardening layer is 3-5mm, so that the wear resistance of the winch drum body is ensured.

The left and right connecting hubs are made of weldable common carbon steel, and the hardness of the inner sides of the connecting hubs is improved through surface induction quenching.

The special surface quenching device mainly comprises: the device comprises a rolling bar, a main shaft bracket, a bearing seat, a bearing cover, a base, a cross brace, a driving gear, a driven gear, a gearbox and a motor; through holes are formed in two ends of the main shaft support, the rolling rod penetrates through the main shafts and is erected on the main shaft support through the through holes, and the two main shafts are kept parallel; a bearing seat is welded on the outer side of the through hole in the main shaft bracket, and the bearing is installed in the bearing seat to realize the rotation of the rolling rod and the main shaft; one end of the main shaft is provided with the driven gear which is connected with the gearbox and the motor through the driving gear; the rolling rod, the main shaft support and the like are all arranged on the base, and the base and the main shaft support are connected together through the cross support to form a whole set of quenching device.

The driven gear, the main shaft, the gearbox and the motor all realize the transmission of power torque in a flat key mode, and the torque transmission mode is reliable and stable.

The cross brace, the base and the spindle support are connected through bolts, the bolt holes are U-shaped holes, and the distance and the height of the spindles can be adjusted by adjusting the positions of the bolts so as to keep the parallelism of the two spindles.

The surface quenching device adopts a gear box to adjust the rotation speed of a main shaft, so that the inner side surfaces of the roller bodies with different diameters and different thicknesses can be quenched.

When the induction quenching device is used, the roller body is placed on the rolling rod, power is provided through the gearbox and the motor, the main shaft and the rolling rod are driven to rotate through gear transmission, so that the roller body rotates at a constant speed, and then the roller body is connected with the induction coil and the transformer induction power supply, so that induction quenching of a quenched surface is realized.

The beneficial effects of the invention are: by adopting the winch roller body and the surface quenching device with the structure, the requirement on the wear resistance of the inner side surface of the roller body is met through surface induction quenching, the phenomenon that the anti-extrusion property of the roller body is reduced due to arrangement of the wear-resisting plate is avoided, and the manufacturing difficulty and the manufacturing cost of the wear-resisting plate are also reduced; the left and right hubs can be made of common carbon steel, so that the welding performance is improved, and the material cost is reduced; the induction quenching of the inner side surfaces of the roller bodies with different diameters and different thicknesses can be realized, and the uniformity of a hardening layer can be ensured.

Drawings

The invention is further described below with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the drum body.

Fig. 2 is a front view of the surface hardening apparatus.

Fig. 3 is a plan view of the surface hardening apparatus.

Fig. 4 is a left side view of the surface hardening apparatus.

Fig. 5 is a schematic view of the use state of the present invention.

In the drawings 1-5, 1 is a left connecting hub, 2 is a cylinder body, 3 is a right connecting hub, 4 is a bearing cover, 5 is a main shaft support, 6 is a cross brace, 7 is a bearing seat, 8 is a bearing, 9 is a shaft sleeve, 10 is a bearing seat, 11 is a cross brace, 12 is a main shaft support, 13 is a bearing cover, 14 is a bearing, 15 is a cross brace, 16 is a rolling rod I, 17 is a rolling rod II, 18 is a cross brace, 19 is a main shaft I, 20 is a main shaft II, 21 is a driven gear II, 22 is a driving gear, 23 is a driven gear I, 24 is a gearbox and a motor, 25 is a base I, 26 is a base II, 27 is a cylinder body, 28 is a transformer and induction power supply, 29 is an induction coil, and 30 is a quenching device

The specific implementation mode is as follows:

the present invention will be further described with reference to the following examples.

The roller body shown in figure 1 comprises a left connecting hub (1), a roller body (2) and a right connecting hub (3), wherein the three parts are welded to form the roller body, the roller body is integrally processed into a cylinder body, the inner sides of the left and right connecting hubs are subjected to surface induction quenching after the cylinder body is survived, and the depth of a hardening layer is 3-5mm. In order to realize the induction quenching of the inner side surfaces of the left and right connecting hubs, a surface quenching device is designed and manufactured.

The left and right connecting hubs (1, 3) are made of common carbon steel with good welding performance, so that the welding requirements can be met, the hardness can be improved through surface induction quenching on the inner sides of the connecting hubs, and the hardness can reach more than 40 HRC.

The surface quenching device shown in fig. 2-4 mainly comprises rolling bars (16, 17), main shafts (19, 20), main shaft supports (5, 12), bearings (8, 14), bearing seats (7, 10), bearing covers (4, 13), bases (25, 26), cross supports (6, 11,15, 18), a driving gear (22), driven gears (21, 23), a gearbox and a motor (24). Through holes are formed in two ends of the main shaft supports (5, 12), the rolling rods (16, 17) penetrate through the main shafts (19, 20) and are erected on the main shaft supports (5, 12) through the through holes, and the main shafts of the two rolling rods are kept parallel. Bearing seats (7, 10) are welded on the outer sides of through holes in the main shaft supports (5, 12), and bearings (8, 14) are installed in the bearing seats (7, 10) so as to realize rotation of the rolling bars and the main shaft. One end of the main shaft (19, 20) is provided with the driven gear (21, 23) which is connected with the gearbox and the motor (24) through the driving gear (22). The rolling bars (16, 17), the main shafts (19, 20), the main shaft brackets (5, 12) and the like are arranged on the bases (25, 26), and the bases and the main shaft brackets are connected together through the cross braces (6, 11,15, 18) to form the whole set of quenching device.

The driven gears (21, 23), the main shafts (19, 20), the gear box and the motor (24) all realize the transmission of power torque in a flat key mode, and the torque transmission mode is reliable and stable.

The cross braces (6, 11,15, 18), the bases (25, 26) and the main shaft brackets (5, 12) are connected through bolts, the bolt holes are U-shaped holes, and the distance and the height of the main shafts can be adjusted by adjusting the positions of the bolts so as to keep the parallelism of the two main shafts.

As shown in figure 5, when the quenching device is used, the roller body (27) is placed on the quenching device (30), power is provided through the gearbox and the motor (24), and the main shafts (19, 20) and the rolling rods (16, 17) are driven to rotate through gear transmission, so that the roller body (27) rotates at a constant speed. The induction coil (29) is placed at the position of the quenching surface of the roller body (27), the transformer and the induction power supply (28) are connected, and when the roller body (27) rotates at a constant speed, induction quenching of the quenching surface is realized.

The above description is only a preferred embodiment of the present invention, and the above detailed description does not limit the present invention, and modifications, modifications and equivalents made by those skilled in the art based on the above description are within the scope of the present invention.

Claims

1. The utility model provides a surface hardening device of winch cylinder body which characterized in that: the device mainly comprises a rolling bar, a main shaft bracket, a bearing seat, a bearing cover, a base, a cross brace, a driving gear, a driven gear, a gearbox and a motor; through holes are formed in two ends of the main shaft support, the rolling rod penetrates through the main shafts and is supported on the main shaft support through the through holes, and the two main shafts are kept parallel; a bearing seat is welded on the outer side of the through hole in the main shaft bracket, and the bearing is installed in the bearing seat to realize the rotation of the rolling rod and the main shaft; one end of the main shaft is provided with the driven gear and is connected with the gearbox and the motor through the driving gear; the rolling rod, the main shaft support and the like are all arranged on the base, and the base and the main shaft support are connected together through the cross support to form a whole set of quenching device.

2. The surface hardening apparatus according to claim 1, wherein: the cross brace, the base and the spindle support are connected through bolts, the bolt holes are U-shaped holes, and the distance and the height of the spindles can be adjusted by adjusting the positions of the bolts so as to keep the parallelism of the two spindles.

3. The surface hardening apparatus according to claim 1, characterized in that: the speed of rotation of the main shaft is adjusted by adopting a gearbox so as to realize the quenching of the inner side surfaces of the roller bodies with different diameters and different thicknesses.