A fixing device for the processing of steel Yankee dryer

Abstract

The present invention discloses a fixture for processing steel Yankee dryers, relating to the technical field of Yankee dryer processing. The fixture comprises a fixing base, with a fixing rod slidably mounted within a cavity in the central inner wall of the fixing base. A first gear is mounted on the top edge of the left end of the fixing base via a motor. The fixture also comprises a first gear ring, which is coaxially rotatably mounted on the left end surface of the fixing base via a bearing and meshes with the first gear. A movable groove is defined in the left wall of the first gear ring, and a mounting rod is connected to the movable groove via a first elastic telescopic rod. A mounting post is fixed within the bottom cavity of the mounting base, and a positioning roller is mounted on the mounting post. A positioning baffle is fixed to the bottom left end of the mounting base. This fixture for processing steel Yankee dryers can connect and secure the cylinder body and cylinder head, and can clean gaps during circumferential welding. The fixture is suitable for cylinder bodies of varying specifications.

Description

Technical Field

[0001] The invention relates to the technical field of Yankee dryer processing, in particular to a fixing device for processing a steel Yankee dryer. Background Art

[0002] The Yankee dryer is one of the important components of a paper machine, mainly used for drying pulp and paper. The processing of the Yankee dryer involves forming, including welding of the cylinder body and cylinder head. During the cylinder head welding process, a fixing device is usually required to position and fix the cylinder body and cylinder head. However, the existing fixing device has the following problems when used:

[0003] To fix the cylinder body and the cylinder cover, they usually need to be butted and fixed at the ends. The existing fixing device is not convenient for circumferential positioning and cleaning of the welding position. On the one hand, the outer end abutment method is adopted, and the position needs to be adjusted, which is more troublesome. At the same time, during welding, impurities are easily retained in the welding area, affecting the welding effect. Furthermore, different specifications of Yankee dryers will be used for different paper machines. The existing fixing device is difficult to adapt, position, install, and clean for Yankee dryers of different specifications, resulting in low practicality of the device.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original foundation. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing device for steel Yankee dryer processing to solve the problems raised by the above background technology. The technical solution of the present invention addresses the technical problem that the existing technical solution is too simple and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a fixing device for processing a steel Yankee dryer, comprising a fixing seat, a fixing rod being slidably mounted in a cavity on the inner wall of the middle portion of the fixing seat, and a first gear being mounted on the top edge of the left end of the fixing seat via a motor;

[0007] The first gear ring is mounted on the left end surface of the fixed base through a bearing for concentric rotation, the first gear ring is meshed with the first gear, a movable groove is formed on the left side wall of the first gear ring, a mounting rod is connected to the movable groove through a first elastic telescopic rod, a mounting base is fixed to the bottom of the mounting rod, a mounting column is fixed in the cavity at the bottom of the mounting base, a positioning roller is sleeved on the mounting column, and a positioning baffle is fixed to the bottom of the left end of the mounting base;

[0008] An adaptive adjustment mechanism, the adaptive adjustment mechanism being installed in the fixing seat and being used to adjust the positions of the fixing rod and the mounting rod according to the size of the workpiece;

[0009] A reciprocating component is provided between the mounting rod and the fixing seat, and is used for driving the positioning roller to move reciprocally.

[0010] Preferably, the fixing rods are distributed at equal angles in the fixing seat, the inner ends of the fixing rods are configured as hemispherical structures, and the positions of the inner ends of the fixing rods correspond to those of the positioning rollers.

[0011] Preferably, the mounting rods are distributed at equal angles in the first gear ring, the mounting rods are limited in vertical sliding in the movable groove, and the mounting rods are designed to be an "L"-shaped structure.

[0012] Preferably, the bottom of the positioning baffle is designed to be an "L"-shaped structure, and the right end position of the positioning baffle corresponds to the initial position of the left end of the positioning roller.

[0013] Preferably, the adaptive adjustment mechanism includes a second gear, which is embedded in the top of the fixed seat through a motor, and a second gear ring is meshed under the second gear, and the second gear ring is rotatably installed in the fixed seat, and a guide groove is provided on the right side of the second gear ring, and a guide rod is provided in the guide groove, and the right end of the guide rod is connected to the fixed rod, and a push head is fixed on the left side of the second gear ring, and a push strip is provided on the moving trajectory of the push head, and a push ring is fixed to the left end of the push strip, and the push ring is rotatably installed in the cavity on the left side of the fixed seat, and the left end of the push ring passes through the internal cavity of the first gear ring and conflicts with the end of the mounting rod.

[0014] Preferably, the guide rod slides in the guide groove, the guide rod slides in a limited position in the inner cavity of the fixing seat, and the guide groove is designed to be an inclined arc structure.

[0015] Preferably, the pusher head is designed to be an arc-shaped structure, the arc-shaped structure of the pusher head is adapted to the moving trajectory of the second gear ring, and the left side of the pusher head is designed to be an inclined structure.

[0016] Preferably, the left bottom surface of the push ring is inclined inward, and the lateral movement of the push ring pushes the mounting rod to move vertically.

[0017] Preferably, the reciprocating component includes a pushing rod, which is arranged on the right side of the vertical area of the mounting rod through a second elastic telescopic rod, and a resistance block is provided at the protruding position of the right end of the pushing rod, and the resistance block is fixed to the left side of the fixed seat, and a pushing ring is fixed at the bottom of the pushing rod and passes through the mounting seat, and the pushing ring is nested on the positioning roller.

[0018] Preferably, the cross section of the interference block is tilted inwards, and the cross section of the interference block when viewed from above is designed to be a hemispherical structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention fixes the cylinder body by contracting and moving the circumferentially distributed fixing rods. The use of the adaptive adjustment mechanism can not only drive the fixing rod to move, but also drive the installation rod to move. The joint between the cylinder body and the cylinder cover is fixed by the positioning roller, and the end of the cylinder cover is limited by the positioning baffle, so that the fixed position operation can be conveniently performed. Furthermore, during subsequent welding, the first gear drives the first gear ring to rotate, which can drive the installation rod and the positioning roller to move, making room for the welding area and ensuring the positioning and fixing effect. At this time, the contact between the push rod and the resistance block, in conjunction with the second elastic telescopic rod, can also drive the positioning roller to move horizontally. On the basis of achieving continuous fixation, the joint can be cleaned to ensure the stability of welding.

[0021] 2. When the present invention is suitable for cylinder bodies of different specifications, the positions of the fixing rod and the positioning roller are adjusted through an adaptive adjustment mechanism to ensure a stable fixing effect, so that the push rod moves with the installation rod. When the installation rod rotates, it can still interfere with the interference block to achieve the lateral movement and cleaning effect of the positioning roller. On this basis, the left end of the interference block is designed to be an inclined structure. When the diameter of the cylinder body and the cylinder head is small, the curvature of the corresponding interference area is also small. At this time, the installation rod rotates normally, and the reciprocating activity amplitude of the positioning roller can be adjusted. Then, in response to the joint with a smaller diameter, the activity frequency of the positioning roller can be increased, thereby improving the stable cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the front cross-section structure of the second gear ring of the present invention;

[0024] Figure 3 This is a schematic diagram of the top view of the interference block of the present invention;

[0025] Figure 4 This is a schematic diagram of the guide groove structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the pusher head structure from a top view according to the present invention;

[0027] Figure 6 This is a schematic diagram of the side distribution structure of the mounting rod of the present invention.

[0028] In the figure: 1. fixed seat; 2. fixed rod; 3. first gear; 4. first gear ring; 5. movable groove; 6. first elastic telescopic rod; 7. mounting rod; 8. mounting seat; 9. mounting column; 10. positioning roller; 11. positioning baffle; 121. second gear; 122. second gear ring; 123. guide groove; 124. guide rod; 125. push head; 126. push strip; 127. push ring; 131. push rod; 132. second elastic telescopic rod; 133. resistance block; 134. push ring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-6 The present invention provides a technical solution: a fixing device for processing a steel Yankee dryer, comprising a fixing seat 1, a fixing rod 2 is slidingly installed in a cavity on the inner wall of the middle part of the fixing seat 1, a first gear 3 is installed at the top edge of the left end of the fixing seat 1 through a motor; a first gear ring 4 is installed on the left end face of the fixing seat 1 through a bearing for concentric rotation, the first gear ring 4 is meshed with the first gear 3, a movable groove 5 is opened on the left side wall of the first gear ring 4, a mounting rod 7 is connected to the movable groove 5 through a first elastic telescopic rod 6, a mounting seat 8 is fixed to the bottom of the mounting rod 7, a mounting column 9 is fixed in the cavity at the bottom of the mounting seat 8, a positioning roller 10 is sleeved on the mounting column 9, and a positioning baffle 11 is fixed to the bottom of the left end of the mounting seat 8; the fixing rods 2 are distributed at equal angles in the fixing seat 1, and the inner end of the fixing rod 2 is set as a hemisphere shaped structure, the inner end of the fixing rod 2 corresponds to the position of the positioning roller 10; the mounting rods 7 are distributed at equal angles in the first gear ring 4, and the mounting rods 7 are limited to slide vertically in the movable groove 5, and the mounting rods 7 are designed as an "L"-shaped structure; the bottom of the positioning baffle 11 is designed as an "L"-shaped structure, and the right end position of the positioning baffle 11 corresponds to the initial position of the left end of the positioning roller 10; the cylinder body is circumferentially fixed by the end of the fixing rod 2, and is clamped at the joint between the cylinder body and the cylinder head by the positioning roller 10, and the positioning baffle 11 is in contact with the outside of the cylinder head to fix the cylinder body and the cylinder head, and the motor drives the first gear 3 to rotate, and the first gear 3 drives the first gear ring 4 to rotate, and the first gear ring 4 drives the mounting rod 7 to move, and then drives the positioning roller 10 and the positioning baffle 11 to move, so that the welding area is gradually given up.

[0031] As an embodiment of the present invention, an adaptive adjustment mechanism is installed in the fixed seat 1, and the adaptive adjustment mechanism is used to adjust the position of the fixed rod 2 and the mounting rod 7 according to the size of the workpiece; the adaptive adjustment mechanism includes a second gear 121, and the second gear 121 is embedded in the top of the fixed seat 1 through the motor. A second gear ring 122 is engaged below the second gear 121, and the second gear ring 122 is rotatably installed in the fixed seat 1. A guide groove 123 is opened on the right side of the second gear ring 122, and a guide rod is provided in the guide groove 123. 124, the right end of the guide rod 124 is connected to the fixed rod 2, and a push head 125 is fixed to the left side of the second gear ring 122. A push strip 126 is provided on the movable track of the push head 125. A push ring 127 is fixed to the left end of the push strip 126. The push ring 127 is rotatably installed in the left cavity of the fixed seat 1. The left end of the push ring 127 passes through the internal cavity of the first gear ring 4 and conflicts with the end of the mounting rod 7; the guide rod 124 slides in the guide groove 123, and the guide rod 124 slides in a limited position at the internal cavity of the fixed seat 1. The guide groove 123 is inclined. Arc structure design; the push head 125 is designed as an arc structure, and the arc structure of the push head 125 is adapted to the activity trajectory of the second gear ring 122. The left side of the push head 125 is designed as an inclined structure; the left bottom surface of the push ring 127 is inclined inward, and the lateral movement of the push ring 127 pushes the mounting rod 7 to move vertically; the second gear 121 is driven to rotate by the built-in motor, and the second gear 121 drives the second gear ring 122 to rotate, and the guide groove 123 and the guide rod 124 drive the fixing rod 2 to move out of the fixing seat 1, and the end of the fixing rod 2 is aligned with the fixing seat 1. Cylinders of different specifications are fixed circumferentially, and at the same time, the rotation of the second gear ring 122 drives the push head 125 to rotate. The inclined surface of the push head 125 contacts the push bar 126, which can push the push ring 127 to move outward. The bottom inclined surface of the push ring 127 contacts the mounting rod 7, driving the mounting rod 7 to move inward in the movable groove 5, and then driving the mounting seat 8, positioning roller 10 and positioning baffle 11 to move inward, so that the positioning roller 10 is clamped at the joint between the cylinder body and the cylinder head, and at the same time the positioning baffle 11 contacts the outside of the cylinder head to fix the cylinder body and the cylinder head.

[0032] As an embodiment of the present invention, a reciprocating component is arranged between the mounting rod 7 and the fixed seat 1, and the reciprocating component is used to drive the positioning roller 10 to move back and forth; the reciprocating component includes a push rod 131, and the push rod 131 is arranged on the right side of the vertical area of the mounting rod 7 through a second elastic telescopic rod 132. A resistance block 133 is provided at the protruding position of the right end of the push rod 131, and the resistance block 133 is fixed to the left side of the fixed seat 1, and a push ring 134 is fixed at the bottom of the push rod 131 and passes through the mounting seat 8, and the push ring 134 is nested on the positioning roller 10; the resistance block 133 The positive cross-section is tilted inward, and the top cross-section of the interference block 133 is designed to be a hemispherical structure; the installation rod 7 drives the pushing rod 131 to move through the second elastic telescopic rod 132, and the pushing rod 131 intermittently contacts the interference block 133. Through the arc structure of the interference block 133, in conjunction with the telescopic movement of the second elastic telescopic rod 132, the pushing rod 131 can drive the positioning roller 10 to move laterally on the installation column 9 through the pushing ring 134. The positioning roller 10 itself can also rotate in the pushing ring 134 and on the installation column 9. When the welding area is cleared, the joint can be cleaned.

[0033] Working principle: First, the cylinder body is sent into the central cavity of the fixing seat 1 by a lifting mechanism or a conveying mechanism, and the cylinder head is lifted to the end of the cylinder body by the lifting mechanism, and then the second gear 121 is driven to rotate by the built-in motor, and the second gear 121 drives the second gear ring 122 to rotate, and the guide groove 123 and the guide rod 124 drive the fixing rod 2 to move and extend in the fixing seat 1, and the cylinder body is circumferentially fixed by the end of the fixing rod 2. At the same time, the rotation of the second gear ring 122 drives the push head 125 to rotate, and the inclined surface of the push head 125 contacts the push head 125, which can push the push ring 127 to move outward, and the inclined surface of the bottom of the push ring 127 contacts the mounting rod 7, driving the mounting rod 7 to move inward in the movable groove 5, and then drives the mounting seat 8, the positioning roller 10 and the positioning baffle 11 to move inward, so that the positioning roller 10 is clamped at the joint between the cylinder body and the cylinder head, and the positioning baffle 11 contacts the outside of the cylinder head, thereby fixing the cylinder body and the cylinder head;

[0034] As welding progresses, the first gear 3 is driven by the motor to rotate, the first gear 3 drives the first gear ring 4 to rotate, and the first gear ring 4 drives the mounting rod 7 to move, thereby driving the positioning roller 10 and the positioning baffle 11 to move, so that the welding area is gradually given up, and at the same time, the mounting rod 7 drives the pushing rod 131 to move through the second elastic telescopic rod 132, and the pushing rod 131 intermittently contacts the resistance block 133. Through the arc structure of the resistance block 133, in conjunction with the telescopic movement of the second elastic telescopic rod 132, the pushing rod 131 can drive the positioning roller 10 to move laterally on the mounting column 9 through the pushing ring 134, and the positioning roller 10 itself can also rotate in the pushing ring 134 and on the mounting column 9. When giving up the welding area, the joint can be cleaned to improve the welding effect. At the same time, due to the inclined design of the outer end of the resistance block 133, when targeting a smaller cylinder body, the resistance block 133 reduces the stroke of the positioning roller 10, thereby accelerating its reciprocating speed, so that the mounting rod 7 can effectively avoid cleaning omissions under the same rotation speed.

[0035] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixing device for processing a steel Yankee dryer, comprising a fixing seat (1), a fixing rod (2) being slidably mounted in a cavity on the inner wall of the middle portion of the fixing seat (1), and a first gear (3) being mounted on the top edge of the left end of the fixing seat (1) via a motor; Its characteristics are: The first gear ring (4) is mounted on the left end face of the fixed seat (1) through a bearing for concentric rotation. The first gear ring (4) is meshed with the first gear (3). A movable groove (5) is provided on the left side wall of the first gear ring (4). A mounting rod (7) is connected to the movable groove (5) through a first elastic telescopic rod (6). A mounting seat (8) is fixed to the bottom of the mounting rod (7). A mounting column (9) is fixed to the bottom cavity of the mounting seat (8). A positioning roller (10) is sleeved on the mounting column (9). A positioning baffle (11) is fixed to the bottom of the left end of the mounting seat (8). An adaptive adjustment mechanism is installed in the fixed seat (1), and is used to adjust the positions of the fixed rod (2) and the mounting rod (7) according to the size of the workpiece. The adaptive adjustment mechanism includes a second gear (121), and the second gear (121) is embedded in the top of the fixed seat (1) through a motor. A second gear ring (122) is engaged below the second gear (121), and the second gear ring (122) is rotatably installed in the fixed seat (1). A guide groove (123) is opened on the right side of the second gear ring (122), and a guide rod (124) is provided in the guide groove (123). The right end of the guide rod (124) is connected to the The fixing rod (2) is connected, a push head (125) is fixed on the left side of the second gear ring (122), a push bar (126) is provided on the moving track of the push head (125), a push ring (127) is fixed on the left end of the push bar (126), the push ring (127) is rotatably installed in the left cavity of the fixing seat (1), the left end of the push ring (127) passes through the inner cavity of the first gear ring (4) and conflicts with the end of the mounting rod (7), the arc structure of the push head (125) is adapted to the moving track of the second gear ring (122), the left side of the push head (125) is designed as an inclined structure, and the lateral movement of the push ring (127) pushes the mounting rod (7) to move vertically; A reciprocating component is provided between the mounting rod (7) and the fixing seat (1), and is used to drive the positioning roller (10) to move laterally on the mounting column (9).

2. A fixing device for steel Yankee dryer processing according to claim 1, characterized in that: The fixing rods (2) are distributed at equal angles in the fixing seat (1); the inner ends of the fixing rods (2) are configured as hemispherical structures; and the inner ends of the fixing rods (2) correspond to the positions of the positioning rollers (10).

3. A fixing device for processing a steel Yankee dryer according to claim 2, characterized in that: The mounting rods (7) are distributed at equal angles in the first gear ring (4), and the mounting rods (7) are limited and vertically slide in the movable groove (5). The mounting rods (7) are designed to be an "L"-shaped structure.

4. A fixing device for processing a steel Yankee dryer according to claim 3, characterized in that: The bottom of the positioning baffle (11) is designed as an "L"-shaped structure, and the right end position of the positioning baffle (11) corresponds to the initial position of the left end of the positioning roller (10).

5. The fixing device for processing a steel Yankee dryer according to claim 4, characterized in that: The guide rod (124) slides in the guide groove (123), and the guide rod (124) slides in a limited position in the internal cavity of the fixing seat (1). The guide groove (123) is designed to have an inclined arc structure.

6. The fixing device for processing a steel Yankee dryer according to claim 5, characterized in that: The pusher head (125) is designed as an arc-shaped structure.

7. A fixing device for processing a steel Yankee dryer according to claim 6, characterized in that: The left bottom surface of the push ring (127) is inclined inwards.

8. The fixing device for processing a steel Yankee dryer according to claim 7, characterized in that: The reciprocating component includes a push rod (131), the push rod (131) is arranged on the right side of the vertical area of the mounting rod (7) through a second elastic telescopic rod (132), a resistance block (133) is provided at a protruding position at the right end of the push rod (131), the resistance block (133) is fixed to the left side of the fixing seat (1), and a push ring (134) is fixed at the bottom of the push rod (131) and passes through the mounting seat (8), and the push ring (134) is nested on the positioning roller (10).

9. The fixing device for steel Yankee dryer processing according to claim 8, characterized in that: The front cross section of the interference block (133) is tilted inwards, and the top cross section of the interference block (133) is designed to be a hemispherical structure.

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