Automatic rotary welding tool for vertical mill roller sleeve

Abstract

The utility model discloses an automatic rotary welding tool for a vertical mill roller sleeve, which belongs to the technical field of vertical mill roller sleeve repair and comprises a transmission shaft, a first support and a second support, bearing seats are mounted on the first support and the second support, and the transmission shaft is obliquely mounted and is in transmission connection through a motor and a speed reducer. The transmission shaft is sleeved with two positioning frames; first clamping plates are mounted on the outer side of the positioning frame on the lower side at intervals, and second clamping plates are mounted on the outer side of the positioning frame on the upper side at intervals; the two positioning frames are connected through a connecting bolt. The roller sleeve is clamped and positioned through the first clamping plate and the second clamping plate, and the two positioning frames are tensioned and fixed through the connecting bolts, so that reliable positioning and mounting of the roller sleeve are achieved, the small end of the roller sleeve inclines downwards, and the R arc angle of the large end of the roller sleeve inclines upwards. The motor drives the transmission shaft to rotate through the speed reducer so as to drive the roller sleeve to rotate, the welding gun conducts one-time surfacing repair on the grinding abrasion face of the roller sleeve, secondary manual welding is effectively avoided, and the repair efficiency and the welding quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vertical mill roller sleeve repairing, in particular to an automatic rotary welding tool for a vertical mill roller sleeve. Background Art

[0002] Vertical mill is an ideal large-scale grinding equipment, widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. It integrates crushing, drying, grinding, and graded transportation, with high production efficiency, and can grind block, granular and powdered raw materials into required powdered materials. The working principle of the vertical mill is: the motor drives the grinding disc to rotate through the reducer, and the material falls from the discharge port to the center of the grinding disc. Under the action of centrifugal force, it moves to the edge of the grinding disc and is crushed by the grinding roller. The crushed material overflows from the edge of the grinding disc and is carried to the high-efficiency powder concentrator integrated with the vertical mill by the high-speed upward hot air flow from the nozzle ring (wind ring). The coarse powder is sorted by the separator and returned to the grinding disc for re-grinding; the fine powder is discharged from the mill with the air flow and collected in the dust collection device of the system, which is the product. The coarse granular materials that are not carried by the hot air flow and the metal parts that accidentally enter the mill sink from the wind ring, are scraped out by the scraper plate, and are fed into the mill for re-grinding through the external circulation bucket elevator.

[0003] The roller sleeve of the vertical mill is a wearable part. After its grinding surface is worn, it usually needs to be welded. The welding repair of the roller sleeve is generally done by online welding and offline welding. Online welding is to weld on the roller assembly without removing the roller sleeve. The motor reducer is used to drive the roller assembly to rotate to achieve semi-automatic welding. In this welding method, online welding requires maintenance time, the welding time is short, and the defects cannot be completely removed. Generally, the roller sleeve needs to be thoroughly repaired offline after 8 online welding to increase the life of the roller sleeve. Offline welding is to use a motor reducer to drive the horizontal transmission shaft to rotate, and the welding gun realizes automatic welding on the upper part of the roller sleeve. However, since the transmission shaft is in a horizontal state and the roller sleeve is a cone-shaped structure, its large head R arc angle cannot be automatically welded (the arc surface near the large end is close to vertical), and secondary manual welding is required, which is inefficient and has poor weld formation. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a vertical mill roller sleeve automatic rotary welding tool, offline automatic surfacing, the transmission shaft is tilted at a certain angle, so as to realize one-time automatic surfacing of the roller sleeve grinding surface, improve welding efficiency and ensure welding quality.

[0005] The utility model is realized by the following technical solutions:

[0006] A vertical mill roller sleeve automatic rotary welding tool comprises a transmission shaft, a first bracket and a second bracket. The first bracket and the second bracket are respectively provided with bearing seats rotatably connected to the two ends of the transmission shaft. The transmission shaft is installed in an inclined manner, and one end thereof is sequentially connected through a motor and a reducer for transmission. Two positioning frames are provided on the positioning sleeve of the transmission shaft. A plurality of first clamping plates capable of clamping the inner edge of the small head end of the roller sleeve are installed at intervals on the outer side of the positioning frame on the lower side, and a plurality of second clamping plates capable of clamping the inner edge of the large head end of the roller sleeve are installed at intervals on the outer side of the positioning frame on the upper side. The two positioning frames are connected by a plurality of connecting bolts.

[0007] A further improvement of the utility model is that the height of the second bracket is lower than that of the first bracket, and the reducer and the motor are installed on the upper end of the second bracket.

[0008] A further improvement of the utility model is that a side support of the second bracket away from the first bracket is connected with an oblique support bracket.

[0009] A further improvement of the utility model is that a pillow block is provided at the lower end of the transmission shaft and is positioned and installed with the bearing seat.

[0010] A further improvement of the utility model is that the positioning frame includes a sleeve that can be fitted with the transmission shaft and a support frame in the shape of an equilateral triangle, and a card mounting plate is connected and installed at the vertex positions of the sleeve and the support frame, and a radial adjustment long hole is provided on the card mounting plate; the first card plate and the second card plate are provided with a plurality of through holes corresponding to the adjustment long holes and capable of being connected to the adjustment long holes by bolts.

[0011] A further improvement of the utility model is that a connecting hole for the connecting bolt to pass through is opened in the middle of each side plate of the support frame.

[0012] A further improvement of the utility model is that a connecting plate is connected between the middle part of each side plate of the support frame and the shaft sleeve.

[0013] A further improvement of the utility model is that a rib plate is connected between the connecting plate and the shaft sleeve.

[0014] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0015] When the roller sleeve is surfacing, the roller sleeve is positioned by the first and second clamping plates, and the two positioning frames are tightened and fixed by connecting bolts, so as to realize the reliable positioning and installation of the roller sleeve, so that the small end of the roller sleeve is tilted downward (consistent with the actual working tilt angle), and the R arc angle of the large end of the roller sleeve is tilted upward; the motor drives the transmission shaft to rotate through the reducer, thereby driving the roller sleeve to rotate, and the welding gun arranged on the upper side of the roller sleeve realizes one-time surfacing and repair of the grinding and wear surface of the roller sleeve, effectively avoiding secondary manual welding, and improving the repair efficiency and welding quality. The overall structure is simple, easy to implement, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description 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.

[0017] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0018] Figure 2 It is a schematic diagram of the positioning frame structure of a specific implementation method of the utility model.

[0019] Figure 3 This is a schematic diagram of the installation of the first card board of a specific implementation method of the utility model.

[0020] Figure 4 This is a schematic diagram of the installation of the second card board of a specific implementation method of the utility model.

[0021] In the accompanying drawings: 1. first bracket, 2. second bracket, 3. bearing seat, 4. diagonal support frame, 5. reducer, 6. motor, 7. transmission shaft, 8. positioning frame, 81. bushing, 82. support frame, 83. pallet mounting plate, 84. connecting plate, 85. rib plate, 86. connecting hole, 87. adjusting long hole, 88. first pallet, 89. second pallet, 9. connecting bolts, 10. roller sleeve. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0023] like Figure 1-4As shown, an optional embodiment of the utility model discloses an automatic rotary welding tool for a vertical mill roller sleeve, comprising a transmission shaft 7, a first bracket 1 and a second bracket 2. The upper parts of the first bracket 1 and the second bracket 2 are respectively provided with bearing seats 3 which are rotatably connected to the two ends of the transmission shaft 7. The transmission shaft 7 is installed in an inclined manner, and one end thereof is sequentially connected through a motor 6 and a reducer 5 for transmission. There are two positioning frames 8 arranged on the positioning sleeve of the transmission shaft 7. A plurality of first clamping plates 88 which can be clamped to the inner edge of the small end of the roller sleeve 10 are installed at intervals on the outer side of the positioning frame 8 on the lower side, and a plurality of second clamping plates 89 which can be clamped to the inner edge of the large end of the roller sleeve 10 are installed at intervals on the outer side of the positioning frame 8 on the upper side. The two positioning frames 8 are connected by a plurality of connecting bolts 9. A first clamping groove which can be clamped to the inner edge of the small end of the roller sleeve 10 is provided on the first clamping plate 88, and a second clamping groove which can be clamped to the inner edge of the large end of the roller sleeve 10 is provided on the second clamping plate 89.

[0024] When surfacing the roller sleeve 10, the roller sleeve 10 is positioned by the first clamping plate 88 and the second clamping plate 89, and the two positioning frames 8 are tightened and fixed by the connecting bolts 9, so as to realize the reliable positioning and installation of the roller sleeve 10, so that the small end of the roller sleeve 10 is tilted downward (consistent with the actual working tilt angle), and the large end of the roller sleeve 10 is tilted upward at the R arc angle; the motor 6 drives the transmission shaft 7 to rotate through the reducer 5, thereby driving the roller sleeve 10 to rotate, and the welding gun arranged on the upper side of the roller sleeve 10 realizes a one-time surfacing repair of the grinding and wear surface of the roller sleeve 10, effectively avoiding secondary manual welding, and improving the repair efficiency and welding quality. The overall structure is simple, easy to implement, and practical.

[0025] Among them, Figure 1 As shown, the height of the second bracket 2 is lower than that of the first bracket 1, and the reducer 5 and the motor 6 are installed on the upper end of the second bracket 2. The reducer 5 and the motor 6 are arranged at the bottom to reduce the installation height and ensure the safety of use.

[0026] Furthermore, the second bracket 2 is supported and connected with an oblique support frame 4 on one side away from the first bracket 1. The oblique support frame 4 supports the second bracket 2, thereby improving the tilting load-bearing capacity of the second bracket 2 and ensuring the safety and reliability of use.

[0027] In order to ensure the reliability of the tilted installation of the transmission shaft 7, a pillow block is provided at the lower end of the transmission shaft 7 for positioning and installing with the bearing seat 3, so as to effectively prevent the transmission shaft 7 from moving downward in the axial direction.

[0028] In another optional embodiment of the utility model, an automatic rotary welding tool for a vertical mill roller sleeve is disclosed, including a transmission shaft 7, a first bracket 1 and a second bracket 2. The upper parts of the first bracket 1 and the second bracket 2 are respectively provided with bearing seats 3 rotatably connected to the two ends of the transmission shaft 7. The transmission shaft 7 is installed at an angle, and one end thereof is sequentially connected for transmission through a motor 6 and a reducer 5; the positioning sleeve on the transmission shaft 7 is provided with two positioning frames 8; a plurality of first clamping plates 88 capable of clamping the inner edge of the small end of the roller sleeve 10 are installed at intervals on the outer side of the positioning frame 8 on the lower side, and a plurality of second clamping plates 89 capable of clamping the inner edge of the large end of the roller sleeve 10 are installed at intervals on the outer side of the positioning frame 8 on the upper side; the two positioning frames 8 are connected by a plurality of connecting bolts 9, a first clamping groove capable of clamping the inner edge of the small end of the roller sleeve 10 is provided on the first clamping plate 88, and a second clamping groove capable of clamping the inner edge of the large end of the roller sleeve 10 is provided on the second clamping plate 89. Figure 2-3 As shown, the positioning frame 8 includes a sleeve 81 that can be fitted with the transmission shaft 7 and a support frame 82 in the shape of an equilateral triangle. A cardboard mounting plate 83 is connected and installed at the apex positions of the sleeve 81 and the support frame 82. The cardboard mounting plate 83 is provided with a radial adjustment slot 87; the first cardboard 88 and the second cardboard 89 are provided with a plurality of through holes corresponding to the adjustment slot 87 and capable of being connected to the adjustment slot 87 by bolts. The positioning frame 8 is welded by three steel plates. The inner end of the cardboard mounting plate 83 is welded to the outer side of the sleeve 81, and the apex position of the positioning frame 8 is welded to the cardboard mounting plate 83. The sleeve 81 can be positioned and installed with the transmission shaft 7 by key connection, which can prevent the sleeve 81 from rotating relative to each other and moving downward axially, thereby ensuring the reliability of the surfacing repair of the roller sleeve 10. By passing bolts through different through holes on the clamping plates (the first clamping plate 88 and the second clamping plate 89), and through the adjusting long hole 87, and tightening the nuts, the clamping plates can be adjusted radially, so that they can adapt to roller sleeves 10 (apertures) of different sizes, thereby improving the versatility of use; and by radial sliding adjustment of the clamping plates, the roller sleeves 10 can be conveniently disassembled and assembled (by sliding the clamping plates inward, the roller sleeves 10 and the positioning frame 8 can be aligned and installed or disassembled in an offset manner).

[0029] In addition, in order to ensure the convenience of disassembly and assembly of the roller sleeve 10, the bearing seat 3 adopts a separable structure, and the reducer 5 and the transmission shaft 7 are connected by a shaft joint flange.

[0030] A connection hole 86 is provided in the middle of each side plate of the support frame 82 for the connection bolt 9 to pass through. The connection bolt 9 passes through the connection hole 86 in the middle of the side plates of the two support frames 82 and is tightened by a nut, so that the two positioning frames 8 can be pressed together, and the first clamping plate 88 and the second clamping plate 89 are arranged correspondingly, thereby ensuring the reliability and stability of the clamping of the roller sleeve 10.

[0031] A connecting plate 84 is connected between the middle of each side plate of the support frame 82 and the shaft sleeve 81. A rib plate 85 is connected between the connecting plate 84 and the shaft sleeve 81. The structural strength of the positioning frame 8 is improved, deformation is avoided during use, and the accuracy and reliability of the positioning and installation of the roller sleeve 10 are ensured.

[0032] The automatic rotary welding tooling for vertical mill roller sleeve, when surfacing the roller sleeve 10, the roller sleeve 10 is clamped and positioned by the first clamping plate 88 and the second clamping plate 89, and the two positioning frames 8 are tightened and fixed by the connecting bolts 9, so as to realize the reliable positioning and installation of the roller sleeve 10, so that the small end of the roller sleeve 10 is tilted downward (consistent with the actual working tilt angle), and the large end of the roller sleeve 10 is tilted upward at the R arc angle; the motor 6 drives the transmission shaft 7 to rotate through the reducer 5, thereby driving the roller sleeve 10 to rotate, and the welding gun arranged on the upper side of the roller sleeve 10 realizes a one-time surfacing repair of the grinding and wear surface of the roller sleeve 10, effectively avoiding secondary manual welding, and improving the repair efficiency and welding quality. The overall structure is simple, easy to implement, and practical.

[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0034] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical mill roller sleeve automatic rotation welding tool, characterized in that: The invention comprises a transmission shaft (7), a first bracket (1) and a second bracket (2), wherein the upper parts of the first bracket (1) and the second bracket (2) are respectively provided with bearing seats (3) which are rotatably connected to the two ends of the transmission shaft (7); the transmission shaft (7) is installed in an inclined manner, and one end thereof is sequentially connected to the transmission shaft through a motor (6) and a reducer (5); two positioning frames (8) are arranged on the positioning sleeve of the transmission shaft (7); a plurality of first clamping plates (88) which can be clamped to the inner edge of the small end of the roller sleeve (10) are installed at intervals on the outer side of the positioning frame (8) on the lower side, and a plurality of second clamping plates (89) which can be clamped to the inner edge of the large end of the roller sleeve (10) are installed at intervals on the outer side of the positioning frame (8) on the upper side; and the two positioning frames (8) are connected by a plurality of connecting bolts (9).

2. The automatic rotary welding tool for vertical mill roller sleeve according to claim 1 is characterized in that: The height of the second bracket (2) is lower than that of the first bracket (1), and the reducer (5) and the motor (6) are mounted on the upper end of the second bracket (2).

3. The automatic rotary welding tool for vertical mill roller sleeve according to claim 2 is characterized in that: A side of the second bracket (2) away from the first bracket (1) is supported and connected with an oblique support frame (4).

4. The automatic rotary welding tool for vertical mill roller sleeve according to claim 1 is characterized in that: A pillow block is provided at the lower end of the transmission shaft (7) and is positioned and mounted with the bearing seat (3).

5. The automatic rotary welding tool for vertical mill roller sleeve according to claim 1 is characterized in that: The positioning frame (8) comprises a shaft sleeve (81) which can be fitted with the transmission shaft (7) and a support frame (82) in the shape of an equilateral triangle. A cardboard mounting plate (83) is connected and mounted at the vertices of the shaft sleeve (81) and the support frame (82). The cardboard mounting plate (83) is provided with a radial adjustment long hole (87). The first cardboard (88) and the second cardboard (89) are provided with a plurality of through holes corresponding to the adjustment long holes (87) and capable of being connected to the adjustment long holes (87) by bolts.

6. The automatic rotary welding tool for vertical mill roller sleeve according to claim 5 is characterized in that: A connection hole (86) for the connection bolt (9) to pass through is provided in the middle of each side plate of the support frame (82).

7. The automatic rotary welding tool for vertical mill roller sleeve according to claim 5 is characterized in that: A connecting plate (84) is connected between the middle portion of each side plate of the support frame (82) and the shaft sleeve (81).

8. The automatic rotary welding tool for vertical mill roller sleeve according to claim 7 is characterized in that: A rib plate (85) is provided between the connecting plate (84) and the shaft sleeve (81).

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