CN219318407U - Fixing device for keeping pitch of tube panel of heating surface of boiler - Google Patents

Abstract

The utility model relates to the technical field of pipe material positioning, and discloses a fixing device for maintaining the pitch of a tube panel on a heating surface of a boiler, comprising a fixed frame, the outer surface of the fixed frame is fixedly connected with a telescopic rod, and the end of the telescopic rod far away from the fixed frame is fixedly connected with a The positioning frame, the inside of the fixed frame is interspersed with a worm, and the worm and the worm wheel are flexibly connected, which can drive the positioning frame to move, so that the device can be adjusted according to the distance between the pipe bodies. The inside of the positioning frame is interspersed with a two-way threaded rod , the outer surface of the two-way threaded rod is threadedly connected with a threaded sleeve, the outer surface of the threaded sleeve is fixedly connected with a connecting seat, the outer surface of the connecting seat is fixedly connected with an arc-shaped seat, and the inside of the connecting seat is interspersed with a limit rod. The outer surface of the seat is fixedly connected with a rubber pad, the outer surface of the rubber pad is provided with a gasket, and the outer surface of the gasket is connected with a pipe body, so that the device can be adjusted according to the specification of the pipe body, and the practicability of the device can be improved.

Description

A Fixing Device for Keeping the Tube Panel Pitch of Boiler Heating Surface

technical field

The utility model relates to the technical field of pipe material positioning, in particular to a fixing device for maintaining the pitch of a tube panel on a heating surface of a boiler.

Background technique

The tube panel on the convection heating surface of the boiler, as well as the panel superheater and reheater suspended above the furnace, generally have a large tube pitch. During operation, due to the uneven deformation of the tubes, the pitch will change, affecting the flue gas scouring and heat transfer. In the past, positioning blocks were welded on adjacent pipes to keep the distance between the pipes constant. This method has at least three disadvantages: first, the deformation caused by uneven heating of the pipe will cause stress concentration, which will often cause strain, and even cause the pipe to rupture, leak and stop the furnace; second, welding the positioning block directly to the pipe requires superb technology Third, the strength of the positioning block itself is often higher than that of the pipe, so it is easy to cause damage to the pipe.

After searching, the patent number CN202532434U discloses a fixing device for maintaining the pitch of the boiler heating surface tube panel, which is characterized in that it includes a first clamping part and a second clamping part, and the first clamping part includes a first steel plate and a first Connecting pipe, the first steel plate is connected with the first pipe, one side of the first connecting pipe is connected with the first steel plate, and the other side has a notch, the second clamping part includes the second steel plate and the second connecting pipe, the second connecting pipe The pipe is arranged in the first connecting pipe, the second connecting pipe is connected with one end of the connecting piece, the other end of the connecting piece is exposed from the notch of the first connecting pipe, and is connected with the second connecting pipe, the second connecting pipe and the second pipe connect. The utility model conforms to the principle that the clamping part is damaged first when the stress is concentrated, and the installation is convenient. Although the device is feasible and easy to install, the device cannot be adjusted according to the distance between the pipe bodies and the specifications of the pipe bodies during actual use, which reduces the practicability of the device.

Utility model content

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a fixing device for maintaining the pitch of the boiler heating surface tube panel, including a fixing frame, the outer surface of the fixing frame is fixedly connected with a telescopic rod, and the telescopic One end of the rod away from the fixed frame is fixedly connected with a positioning frame, and the inner wall of the fixed frame is movably connected with a two-way internal thread pipe, and the internal thread of the two-way internal thread pipe is connected with a screw rod, and one end of the screw rod is fixed to the positioning frame connected, the outer surface of the two-way internally threaded pipe is fixedly connected with a worm gear, and the inside of the fixed frame is interspersed with a worm, and the worm is movably connected with the worm gear;

The inside of the positioning frame is interspersed with a two-way threaded rod, the outer surface of the two-way threaded rod is threaded with a threaded sleeve, the outer surface of the threaded sleeve is fixedly connected with a connecting seat, and the outer surface of the connecting seat is fixed An arc-shaped seat is connected, and a limit rod is interspersed inside the connecting seat. The outer surface of the arc-shaped seat is fixedly connected with a rubber pad, and the outer surface of the rubber pad is provided with a gasket. The outer surface of the gasket The surface is connected with a pipe body.

Preferably, the outer surfaces of the fixing frame and the positioning frame are coated with anti-corrosion paint, and the thickness of the anti-corrosion paint is one millimeter to three millimeters.

Preferably, the telescopic rods are evenly distributed on both sides of the outer surface of the fixed frame, and the number of the telescopic rods is four, which are divided into two groups.

Preferably, the two-way internally threaded pipe is welded by two internally threaded pipes with opposite threads, and both ends of the two-way internally threaded pipe are movably connected to the inner wall of the fixed frame through a bearing seat.

Preferably, one end of the worm is movably connected to the inner wall of the fixed frame through a bearing seat, the other end of the worm is fixedly connected with a rotating handle, and the outer surface of the rotating handle is fixedly connected with a non-slip sleeve.

Preferably, one end of the two-way threaded rod is movably connected to the inner wall of the positioning frame through a bearing seat, the other end of the two-way threaded rod is fixedly connected to a rotating knob, and the outer surface of the rotating knob is fixedly connected to a rotating knob.

Preferably, the outer surface of the arc-shaped seat is fixedly connected to the rubber pad through a strong adhesive, the thickness of the rubber pad is 5 mm to 7 mm, and the outer surface of the rubber pad is coated with an anti-corrosion protective film.

The beneficial effects of the utility model are: when the device is in use, by rotating the worm, since the worm is flexibly connected with the worm wheel, and the worm wheel is fixedly connected with the two-way internal thread pipe, when the worm is turned, the two-way internal thread pipe can be driven. Rotation, because the two-way internal thread pipe is threadedly connected with the screw rod, so when the two-way internal thread pipe rotates, the screw rod can be driven to move along the two-way internal thread pipe. Since the screw rod is fixedly connected with the positioning frame, when the screw rod When moving, the positioning frame can be driven to move, so that the device can be adjusted according to the distance between the tube bodies.

By turning the two-way threaded rod, since the two-way threaded rod moves through the threaded sleeve and the connecting seat, and the two-way threaded rod is threadedly connected with the threaded sleeve, when the two-way threaded rod is turned, the threaded sleeve can be driven to drive the connecting seat along the The limit rod moves, and because the connection seat is fixedly connected with the arc seat, when the connection seat moves, it can drive the arc seat to move, so that the device can be adjusted according to the specifications of the pipe body, and the device can be improved. practicality.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a perspective view of the utility model as a whole.

Fig. 2 is a schematic diagram of the internal structure of the utility model.

Fig. 3 is an enlarged view of A in Fig. 2 of the present utility model.

Fig. 4 is a structural schematic diagram of the utility model when in use.

In the figure, 1. Fixed frame; 2. Telescopic rod; 3. Positioning frame; 4. Two-way internal thread pipe; 5. Screw rod; 6. Worm wheel; 7. Worm; 10. Connection seat; 11. Arc seat; 12. Limit rod; 13. Rubber pad; 14. Gasket; 15. Tube body.

Detailed ways

The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-4,

Embodiment 1: The outer surface of the fixed frame 1 is fixedly connected with a telescopic rod 2, and the end of the telescopic rod 2 away from the fixed frame 1 is fixedly connected with a positioning frame 3, and the inner wall of the fixed frame 1 is movably connected with a two-way internal thread pipe 4, and the two-way internal thread The inner thread of the tube 4 is connected with a screw 5, one end of the screw 5 is fixedly connected with the positioning frame 3, the outer surface of the bidirectional internally threaded tube 4 is fixedly connected with a worm wheel 6, and the inside of the fixed frame 1 is interspersed with a worm 7, and the worm 7 It is movably connected with the worm wheel 6, and by rotating the worm 7, since the worm 7 is movably connected with the worm wheel 6, and the worm wheel 6 is fixedly connected with the two-way internally threaded pipe 4, so when the worm 7 is rotated, the two-way internally threaded pipe 4 can be driven to rotate, Since the two-way internally threaded pipe 4 is threadedly connected with the screw rod 5, when the two-way internally threaded pipe 4 rotates, the screw rod 5 can be driven to move along the two-way internally threaded pipe 4, because the screw rod 5 is fixedly connected to the positioning frame 3 , so when the screw rod 5 moves, it can drive the positioning frame 3 to move, so that the device can be adjusted according to the distance between the tube bodies 15;

Embodiment 2: The interior of the positioning frame 3 is interspersed with a two-way threaded rod 8, the outer surface of the two-way threaded rod 8 is threaded with a threaded sleeve 9, and the outer surface of the threaded sleeve 9 is fixedly connected with a connection seat 10, and the connection seat 10 The outer surface is fixedly connected with an arc-shaped seat 11, and the inside of the connecting seat 10 is interspersed with a limit rod 12. The outer surface of the arc-shaped seat 11 is fixedly connected with a rubber pad 13, and the outer surface of the rubber pad 13 is provided with a gasket 14. The outer surface of 14 is connected with pipe body 15, by rotating the two-way threaded rod 8, because the two-way threaded rod 8 moves through the threaded sleeve 9 and the connecting seat 10, and the two-way threaded rod 8 is threadedly connected with the threaded sleeve 9, so when turning When the two-way threaded rod 8 is used, the threaded sleeve 9 can be driven to drive the connecting seat 10 to move along the limit rod 12. Since the connecting seat 10 is fixedly connected with the arc-shaped seat 11, when the connecting seat 10 moves, it can drive The arc seat 11 moves so that the device can be adjusted according to the specifications of the pipe body 15, thereby improving the practicability of the device.

Working principle: Check the safety of each structure of the device before use. When the device is in use, by rotating the worm 7, since the worm 7 is movably connected with the worm wheel 6, and the worm wheel 6 is fixedly connected with the two-way internal thread pipe 4, so when When turning the worm 7, it can drive the two-way internally threaded tube 4 to rotate. Since the two-way internally threaded tube 4 is threadedly connected with the screw mandrel 5, when the two-way internally threaded tube 4 rotates, the screw mandrel 5 can be driven to rotate along the two-way internally threaded tube 4. The threaded pipe 4 moves, because the screw rod 5 is fixedly connected with the positioning frame 3, so when the screw rod 5 moves, it can drive the positioning frame 3 to move, so that the device can be adjusted according to the distance between the pipe bodies 15 , by turning the two-way threaded rod 8 at the same time, since the two-way threaded rod 8 moves through the threaded sleeve 9 and the connecting seat 10, and the two-way threaded rod 8 is threadedly connected with the threaded sleeve 9, so when the two-way threaded rod 8 is rotated, it can Drive the threaded sleeve 9 to drive the connecting seat 10 to move along the limit rod 12. Since the connecting seat 10 is fixedly connected to the arc-shaped seat 11, when the connecting seat 10 moves, it can drive the arc-shaped seat 11 to move, thereby The device can be adjusted according to the specifications of the pipe body 15, thereby improving the practicability of the device.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements, or also include elements inherent in such a process, method, article or equipment, and the standard parts used in this application document can be purchased from the market, and can be obtained according to the description and drawings The specific connection method of each part adopts the mature conventional method in the prior art, the machinery, parts and equipment all adopt the conventional model in the prior art, and the circuit connection adopts the conventional connection method in the prior art. No specific description will be made here.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A fixing device for maintaining the pitch of the tube panels of the heating surfaces of boilers, comprising a fixing frame (1), characterized in that: the outer surface of the fixed frame (1) is fixedly connected with a telescopic rod (2), one end, away from the fixed frame (1), of the telescopic rod (2) is fixedly connected with a positioning frame (3), the inner wall of the fixed frame (1) is movably connected with a bidirectional internal thread pipe (4), the internal thread of the bidirectional internal thread pipe (4) is connected with a screw rod (5), one end of the screw rod (5) is fixedly connected with the positioning frame (3), the outer surface of the bidirectional internal thread pipe (4) is fixedly connected with a worm wheel (6), a worm (7) is inserted in the fixed frame (1), and the worm (7) is movably connected with the worm wheel (6);

the inside of locating frame (3) alternates and is provided with two-way threaded rod (8), the surface threaded connection of two-way threaded rod (8) has threaded sleeve (9), the surface fixedly connected with connecting seat (10) of threaded sleeve (9), the surface fixedly connected with arc seat (11) of connecting seat (10), the inside of connecting seat (10) alternates and is provided with gag lever post (12), the surface fixedly connected with rubber pad (13) of arc seat (11), the surface of rubber pad (13) is provided with gasket (14), the surface connection of gasket (14) has body (15).

2. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: the outer surfaces of the fixing frame (1) and the positioning frame (3) are coated with anti-corrosion paint, and the thickness of the anti-corrosion paint is one millimeter to three millimeters.

3. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: the telescopic rods (2) are uniformly distributed on two sides of the outer surface of the fixed frame (1), and the number of the telescopic rods (2) is four and divided into two groups.

4. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: the two-way internal thread pipe (4) is formed by welding two internal thread pipes with opposite threads, and two ends of the two-way internal thread pipe (4) are movably connected with the inner wall of the fixed frame (1) through bearing seats.

5. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: one end of the worm (7) is movably connected with the inner wall of the fixed frame (1) through a bearing seat, the other end of the worm (7) is fixedly connected with a rotating handle, and the outer surface of the rotating handle is fixedly connected with an anti-skid sleeve.

6. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: one end of the bidirectional threaded rod (8) is movably connected with the inner wall of the positioning frame (3) through a bearing seat, the other end of the bidirectional threaded rod (8) is fixedly connected with a rotating button, and the outer surface of the rotating button is fixedly connected with a rotating button.

7. A fixture for maintaining a tube panel pitch of a heated surface of a boiler as set forth in claim 1, wherein: the outer surface of the arc-shaped seat (11) is fixedly connected with a rubber pad (13) through a strong adhesive, the thickness of the rubber pad (13) is five millimeters to seven millimeters, and an anti-corrosion protection film is smeared on the outer surface of the rubber pad (13).

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