Soot blower nozzle welding device

Abstract

A soot blower nozzle welding device comprises a positioning seat (1) and a set of nozzle positioning mechanisms, each nozzle positioning mechanism comprises a distance adjusting support (2), a positioning shell (3), an adjusting rod (4) and a tensioning head (5), the positioning shell (3) is installed in the distance adjusting support (2), and the adjusting rod (4) is rotatably installed in the positioning shell (3); the device has the advantages that the nozzles are fed into the mounting holes of the soot blower nozzle through the nozzle positioning mechanism for welding, the welding speed is high, the positioning precision is high, and a plurality of nozzles can be positioned at the same time.

Description

Technical Field

[0001] The utility model relates to the field of soot blower equipment, in particular to a soot blower nozzle welding device. Background Art

[0002] At present, on the sootblower production line, it is necessary to weld the nozzles in a ring-shaped and uniform distribution on the sootblower nozzles. Since the nozzles are located on the side walls of the sootblower nozzles, they must be fixed by a positioning device and then sent into the mounting holes of the nozzles for welding. There is a lack of a special device with high positioning accuracy that can simultaneously send multiple nozzles into the sootblower nozzles for welding. Utility Model Content

[0003] The purpose of the utility model is to provide a sootblower nozzle welding device in view of the above-mentioned shortcomings.

[0004] The utility model comprises a positioning seat and a group of nozzle positioning mechanisms.

[0005] The nozzle positioning mechanism includes a distance adjustment support, a positioning shell, an adjustment rod and a tensioning head.

[0006] The positioning housing is installed in the distance adjustment support, the adjusting rod can be rotatably installed in the positioning housing, a screw is provided at the end of the adjusting rod, and the tensioning head is threadedly installed at the end of the screw. The adjusting rod is rotated to drive the tensioning head to extend out of the positioning housing or retract into the positioning housing, and a group of nozzle positioning mechanisms are annularly distributed and installed on the positioning seat.

[0007] The positioning shell is a hollow cylinder, one end of which is a truncated cone, and an external thread is arranged on the outer wall of the other end of the positioning shell. A pair of nut threads are installed on the external thread, and the end face of the nut is attached to the distance adjustment support.

[0008] A limit ring is arranged on the adjusting rod, the limit ring is attached to the end surface of the positioning shell, and a handle is arranged at one end of the adjusting rod.

[0009] The tensioning head is in the shape of a truncated cone. A group of claws are evenly distributed in a ring on the tensioning head. The ends of the claws are provided with arc-shaped protrusions. A threaded hole is opened at one end of the tensioning head.

[0010] A threaded hole is opened at the top of one end of the positioning shell, a positioning screw is arranged in the threaded hole, and the screw head of the positioning screw is located between a pair of adjacent claws.

[0011] The adjustable distance support is composed of a sleeve and an inverted T-shaped base. The sleeve is fixedly installed on the inverted T-shaped base. A locking screw hole is opened on the top of the sleeve. The positioning shell is located in the sleeve. The locking screw is screwed into the locking screw hole to press and fix the outer wall of the positioning shell.

[0012] A three-jaw chuck is provided on the top of the positioning seat for fixing the lower part of the nozzle, and the bottom of the sootblower nozzle is fixed by the three-jaw chuck.

[0013] A chuck locking mechanism is arranged on the positioning seat, and the chuck locking mechanism includes a guide seat, a push rod and a locking block. A guide hole is opened on the guide seat, and the push rod is located in the guide hole. A locking screw is arranged on the top of the guide seat, and the push rod is pressed and fixed in the guide hole from above by the locking screw. The locking block is installed at the end of the push rod, and one of the claws of the three-jaw chuck is fixed by the locking block.

[0014] The locking block is U-shaped, and a locking screw is arranged on one side of the locking block. One of the claws of the three-jaw chuck is located in the locking block and is tightened and fixed by the locking screw.

[0015] A round handle is provided at the end of the push rod.

[0016] The utility model has the advantages that the nozzle is sent into the installation hole of the sootblower nozzle through the nozzle positioning mechanism for welding, the welding speed is fast, the positioning accuracy is high, and multiple nozzles can be positioned at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a nozzle positioning machine of the utility model with half of the positioning shell hidden.

[0019] Figure 3 It is a structural schematic diagram of the tensioning head of the utility model.

[0020] Figure 4 It is a structural schematic diagram of a sootblower nozzle of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the nozzle of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", etc. appear in the description of the present invention, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] As shown in the accompanying drawings, the utility model comprises a positioning seat 1 and a group of nozzle positioning mechanisms.

[0028] The nozzle positioning mechanism includes a distance adjustment support 2, a positioning housing 3, an adjustment rod 4 and a tensioning head 5.

[0029] The positioning housing 3 is installed in the distance adjustment support 2, the adjusting rod 4 is rotatably installed in the positioning housing 3, a screw is provided at the end of the adjusting rod 4, and a tensioning head 5 is threadedly installed at the end of the screw. The adjusting rod 4 is rotated to drive the tensioning head 5 to extend out of the positioning housing 3 or retract into the positioning housing 3. A group of nozzle positioning mechanisms are annularly distributed and installed on the positioning seat 1.

[0030] The positioning shell 3 is a hollow cylindrical shape, one end of the positioning shell 3 is a truncated cone shape, and an external thread is arranged on the outer wall of the other end of the positioning shell 3. A pair of nuts 6 are threadedly installed on the external thread, and the end faces of the nuts 6 are attached to the distance adjustment support 2.

[0031] A limit ring 7 is arranged on the adjusting rod 4 , and the limit ring 7 is attached to the end surface of the positioning housing 3 . A handle is arranged at one end of the adjusting rod 4 .

[0032] The tensioning head 5 is in a truncated cone shape. A group of claws 8 are evenly distributed in an annular shape on the tensioning head 5 . An arc-shaped protrusion is provided at the end of the claw 8 . A threaded hole is opened at one end of the tensioning head 5 .

[0033] A threaded hole is formed at the top of one end of the positioning housing 3 , and a positioning screw 9 is arranged in the threaded hole. The screw head of the positioning screw 9 is located between a pair of adjacent claws 8 .

[0034] The distance-adjusting support 2 is composed of a sleeve and an inverted T-shaped base. The sleeve is fixedly mounted on the inverted T-shaped base. A locking screw hole is opened on the top of the sleeve. The positioning shell 3 is located in the sleeve. The locking screw is screwed into the locking screw hole to press and fix the outer wall of the positioning shell 3.

[0035] A three-jaw chuck 10 for fixing the lower part of the nozzle is arranged on the top of the positioning seat 1 , and the bottom of the nozzle of the sootblower is fixed by the three-jaw chuck 10 .

[0036] A chuck locking mechanism is provided on the positioning seat 1, and the chuck locking mechanism includes a guide seat 11, a push rod 12 and a locking block 13. A guide hole is opened on the guide seat 11, and the push rod 12 is located in the guide hole. A locking screw is provided on the top of the guide seat 11, and the push rod 12 is pressed and fixed in the guide hole from above by the locking screw. The locking block 13 is installed at the end of the push rod 12, and one of the claws of the three-jaw chuck 10 is fixed by the locking block.

[0037] The locking block 13 is U-shaped, and a locking screw is provided on one side of the locking block 13. One of the claws of the three-jaw chuck 10 is located in the locking block 13 and is tightened and fixed by the locking screw.

[0038] The end of the push rod 12 is provided with a round handle.

[0039] Embodiment 1: Clamp the sootblower nozzle 100 onto the three-jaw chuck 10. In order to be able to clamp sootblower nozzles 100 of different diameters, a three-jaw chuck is used for clamping. This design also takes into account the indexing function of the fixture (this function is required when the angles of the welding nozzles in the diameter direction are the same). Sleeve the nozzle 101 on one end of the truncated cone of the positioning housing 3, rotate the adjusting rod 4, and the screw of the adjusting rod 4 rotates to drive the tensioning head 5 to extend out of the positioning housing 3. The cooperation between the positioning screw 9 and the area between a pair of claws 8 makes the tensioning head 5 only move forward and backward (equivalent to the transmission principle of the screw nut and the screw), and will not rotate with the adjusting rod 4. After the tensioning head 5 is extended, it expands outward, and the nozzle 101 is fixed by the tensioning force. A pair of nuts 6 are turned to adjust the distance that the positioning shell 3 extends out of the distance-adjusting support 2 to adapt to sootblower nozzles 100 of different thicknesses. The maximum extension distance of the adjusting rod 4 is limited by the limit ring 7. The nozzle 101 is sent into the mounting hole of the sootblower nozzle 100 through the nozzle positioning mechanism. Four points are evenly welded in a ring between the nozzle 101 and the sootblower nozzle 100. After welding, the adjusting rod 4 is rotated to drive the tensioning head 5 to shrink and return to the shell 3, release the clamping of the nozzle 101, loosen the three-jaw chuck 10, remove the sootblower nozzle 100, and after all the nozzles 101 are spot-welded, all the sootblower nozzles 100 are welded to meet the requirements of the drawings.

Claims

1. A sootblower nozzle welding device, characterized in that It comprises a positioning seat (1) and a set of nozzle positioning mechanisms. The nozzle positioning mechanism comprises a distance adjustment support (2), a positioning housing (3), an adjustment rod (4) and a tensioning head (5). The positioning housing (3) is installed in the distance adjustment support (2), the adjusting rod (4) is rotatably installed in the positioning housing (3), a screw is arranged at the end of the adjusting rod (4), a tensioning head (5) is threadedly installed at the end of the screw, and the adjusting rod (4) is rotated to drive the tensioning head (5) to extend out of the positioning housing (3) or to be retracted into the positioning housing (3), and a group of nozzle positioning mechanisms are annularly distributed and installed on the positioning seat (1).

2. A sootblower nozzle welding device according to claim 1, characterized in that: The positioning shell (3) is in the shape of a hollow cylinder, one end of the positioning shell (3) is in the shape of a truncated cone, an outer wall of the other end of the positioning shell (3) is provided with an external thread, a pair of nuts (6) are threadedly mounted on the external thread, and the end faces of the nuts (6) are attached to the distance adjustment support (2).

3. A sootblower nozzle welding device according to claim 2, characterized in that: A limit ring (7) is arranged on the adjusting rod (4), the limit ring (7) is attached to the end surface of the positioning housing (3), and a handle is arranged at one end of the adjusting rod (4).

4. A sootblower nozzle welding device according to claim 3, characterized in that: The tensioning head (5) is in the shape of a truncated cone. A group of clamping claws (8) are evenly distributed in an annular manner on the tensioning head (5). The ends of the clamping claws (8) are provided with arc-shaped protrusions. A threaded hole is opened at one end of the tensioning head (5).

5. A sootblower nozzle welding device according to claim 4, characterized in that: A threaded hole is formed at the top of one end of the positioning housing (3), a positioning screw (9) is arranged in the threaded hole, and the screw head of the positioning screw (9) is located between a pair of adjacent claws (8).

6. A sootblower nozzle welding device according to claim 1, characterized in that: The distance adjustment support (2) is composed of a sleeve and an inverted T-shaped base. The sleeve is fixedly mounted on the inverted T-shaped base. A locking screw hole is opened on the top of the sleeve. The positioning shell (3) is located in the sleeve. The locking screw is screwed into the locking screw hole to press and fix the outer wall of the positioning shell (3).

7. A sootblower nozzle welding device according to claim 1, characterized in that: A three-jaw chuck (10) for fixing the lower part of the nozzle is arranged on the top of the positioning seat (1), and the bottom of the nozzle of the soot blower is fixed by the three-jaw chuck (10).

8. A sootblower nozzle welding device according to claim 7, characterized in that: A chuck locking mechanism is arranged on the positioning seat (1), and the chuck locking mechanism comprises a guide seat (11), a push rod (12) and a locking block (13). A guide hole is opened on the guide seat (11), and the push rod (12) is located in the guide hole. A locking screw is arranged on the top of the guide seat (11), and the push rod (12) is pressed and fixed in the guide hole from above by the locking screw. The locking block (13) is installed at the end of the push rod (12), and one of the clamping claws of the three-jaw chuck (10) is fixed by the locking block.

9. A sootblower nozzle welding device according to claim 8, characterized in that: The locking block (13) is U-shaped, and a locking screw is arranged on one side of the locking block (13). One of the clamping claws of the three-jaw chuck (10) is located in the locking block (13) and is pressed and fixed by the locking screw.

10. A sootblower nozzle welding device according to claim 9, characterized in that: The end of the push rod (12) is provided with a round handle.

Images