CN210801222U

CN210801222U - Cleaning device for coal economizer pipelines with various sizes

Info

Publication number: CN210801222U
Application number: CN201921177385.3U
Authority: CN
Inventors: 许小妹
Original assignee: Anhui Aerospace Industrial Equipment Co ltd
Current assignee: Wuhu Aerospace Industrial Equipment Co.,Ltd.
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-19
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to a cleaning device for multiple size economizer pipeline, including base, the lead screw of setting in the base top, be equipped with on the base with lead screw complex screw bush, be connected so that its motor of screw feed under the screw bush effect with the lead screw, be equipped with on the lead screw tip and bear the seat, but bear the equipartition and have radial movement's clearance piece on the circumference terminal surface of seat. The utility model realizes the size adjustment of the cleaning block in the radial direction through the mutual meshing of the first bevel gear and the second bevel gear and the fine adjustment of the distance between the screw rod and the sliding block, thereby satisfying the cleaning of coal economizer pipelines with various sizes, reducing the cost and improving the cleaning efficiency; in addition, through the screw-thread fit of the screw rod and the thread bushing and the synchronous rotation of the sleeve rod and the sleeve, the cleaning block moves along the central axis of the pipeline and simultaneously rotates to clean accumulated dust in the pipeline, the structure is simplified, and meanwhile, the device has the advantages of stability, easiness in maintenance and simplicity in operation.

Description

Cleaning device for coal economizer pipelines with various sizes

Technical Field

The utility model relates to an economizer pipeline clearance technical field specifically is a cleaning device for economizer pipeline of multiple size.

Background

The economizer is a device which is arranged at the lower part of a tail flue of a boiler and used for recovering waste heat of discharged smoke, and has the characteristics of reducing the temperature of the discharged smoke, saving energy, improving the heat efficiency and the like. In the long-term use process of the boiler, particles in the smoke can be attached to the inner pipeline of the economizer, a large amount of dust and scale are easily accumulated, heat exchange is influenced, exhaust of the boiler is interfered, and the working efficiency of the boiler is reduced.

Chinese patent No. CN202709864U discloses a pipe cleaning device for a boiler economizer, which comprises a drill, a straight rod and a connecting end, wherein the drill is arranged at one end of the straight rod, the diameter of the drill is larger than that of the straight rod, and the other end of the drill is a square or hexagonal electric hammer or pneumatic hammer connecting end. The device utilizes wind big gun or electric hammer as power, drives the drill bit of straight-bar other end, and the incrustation scale in the pipeline is cleared up fast by the drill bit. The device has the unicity problem, can only clear up the pipeline of a size, when there are multiple size pipeline clearance, needs prepare corresponding size drill bit and wind big gun or electric hammer, has increased clearance cost and clearance efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cleaning device is used to multiple size economizer pipeline, its aim at provide one kind through adjusting cleaning device's radial dimension to this adapts to the economizer pipeline of multiple size, has realized accomplishing the economizer pipeline clearance of multiple size through a cleaning device.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

a cleaning device for coal economizer pipelines with various sizes comprises a base and a first screw rod arranged above the base, wherein a threaded bushing matched with the first screw rod and a motor connected with the first screw rod to enable the first screw rod to be fed spirally under the action of the threaded bushing are arranged on the base;

the end part of the first screw rod is provided with a bearing seat, the circumferential end surface of the bearing seat is uniformly provided with cleaning blocks capable of moving in the radial direction, a first bevel gear is arranged inside the bearing seat, and the first bevel gear is meshed with a second bevel gear which is in threaded fit with the cleaning blocks correspondingly so that the cleaning blocks move in the radial direction.

Further, the motor is coaxially connected with a sleeve, and a sleeve rod which can synchronously axially rotate with the sleeve and is connected with a first screw rod is slidably arranged in the sleeve.

Further, the inner section of the sleeve and the outer section of the sleeve rod are of adaptive square structures.

Furthermore, a clamping groove used for driving the first bevel gear to axially rotate is arranged on the axial end face of the first bevel gear, and the clamping groove is communicated with the outside of the bearing seat.

Furthermore, a second screw rod is coaxially connected with the second bevel gear, a sliding block is arranged on the second screw rod, and the end part of the cleaning block is fixed on the sliding block.

The utility model has the advantages that:

compared with the prior art, the utility model realizes the size adjustment of the cleaning block in the radial direction through the mutual meshing of the first bevel gear and the second bevel gear and the fine adjustment of the distance between the screw rod and the sliding block, thereby satisfying the cleaning of coal economizer pipelines with various sizes, reducing the cost and improving the cleaning efficiency; in addition, through the screw-thread fit of the screw rod and the thread bushing and the synchronous rotation of the sleeve rod and the sleeve, the cleaning block moves along the central axis of the pipeline and simultaneously rotates to clean accumulated dust in the pipeline, the structure is simplified, and meanwhile, the device has the advantages of stability, easiness in maintenance and simplicity in operation.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic sectional view A-A of FIG. 1;

FIG. 3 is a schematic sectional view B-B of FIG. 1;

FIG. 4 is a schematic structural view of the cleaning device of the present invention;

fig. 5 is a schematic structural diagram of the regulator of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 4, a cleaning apparatus for various sizes of economizer pipes, includes bases 1 distributed in the left and right direction, a first screw rod 4 is distributed right above the base 1 and along the left-right direction, a threaded bushing 3 in threaded fit with the first screw rod 4 is fixed on the left side of the base 1 through a bolt, a motor 2 is fixed on the right side of the base 1, a sleeve 5 is coaxially connected with a motor shaft of the motor 2, a sleeve groove 5a with a square cross section is arranged in the sleeve 5, the right end part of the first screw rod 4 is connected with a sleeve rod 6 with a square structure through a connecting plate, the sleeve rod 6 is matched and glidingly arranged in the sleeve groove 5a, the screw rod 4 rotates synchronously along with the motor shaft of the motor 2 through the rotation of the sleeve 5 driven by the motor 2 and the matching of the sleeve groove 5a and the loop bar 6, and the screw rod 4 finally achieves the movement of moving forwards while rotating under the guiding of the thread bush 3. In the connection process, the first screw rod 4, the loop bar 6, the sleeve 5 and the motor 2 are required to be positioned on the same central axis.

A bearing seat 7 which is cylindrical in shape is arranged at the left end part of the first screw rod 4, four cleaning blocks 8 which can move radially are uniformly distributed on the circumferential end surface of the bearing seat 7, a first bevel gear 9 which is fixed through a bearing is arranged inside the bearing seat 7, four second bevel gears 10 which correspond to the cleaning blocks 8 are meshed with the first bevel gear 9, each second bevel gear 10 is coaxially connected with a second screw rod 11, one end of each second screw rod 11 is fixed on the inner side wall of the bearing seat 7 through the bearing, a sliding block 12 is arranged on each second screw rod 11, and the four cleaning blocks 8 are fixedly connected with the corresponding sliding blocks 12 through connecting rods arranged at the tail parts of the cleaning blocks 8; a clamping groove 9a is formed in the center of the axial end face of the first bevel gear 9, a through hole 7a communicated with the clamping groove 9a is formed in the center of the left end face of the bearing seat 7, and during adjustment, as shown in fig. 5, adjustment is performed through an adjuster 13 specially designed to be matched with the clamping groove 9 a. Through the cooperation of lead screw 11 and slider 12, the displacement of regulation clearance piece 8 that can be more accurate has the size fine setting function.

The working principle is as follows:

during the use, according to the economizer pipeline size of treating the clearance, through inserting regulator 13 in bearing seat 7 for the end of regulator 13 corresponds the block with draw-in groove 9a, then rotatory regulator 13 drives bevel gear 9 and rotates, drives four No. two bevel gear 10 synchronous rotations through bevel gear 9, realizes that four clearance piece 8 stretch out or shrink in radial direction, in order to reach the economizer pipeline size of adaptation treating the clearance.

After the size is adjusted, the center of the bearing seat 7 is aligned to the center of the economizer pipeline, and the bearing seat is ensured to be positioned on the same central axis; then, the starting motor 2 drives the sleeve 5 to rotate, the sleeve 5 drives the loop bar 6, and under the guidance of the threaded bush 3, the screw rod 4 drives the bearing seat 7 and the cleaning block 8 thereon to rotate and simultaneously move forward along the central axis towards the pipeline, so that dust in the pipeline of the economizer is cleaned.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cleaning device for multiple size economizer pipeline which characterized in that: the screw feeding mechanism comprises a base (1) and a first screw rod (4) arranged above the base (1), wherein a threaded bushing (3) matched with the first screw rod (4) and a motor (2) connected with the first screw rod (4) to enable the first screw rod to perform screw feeding under the action of the threaded bushing (3) are arranged on the base (1);

the end part of the first screw rod (4) is provided with a bearing seat (7), the circumferential end face of the bearing seat (7) is uniformly provided with cleaning blocks (8) capable of moving in the radial direction, a first bevel gear (9) is arranged inside the bearing seat (7), and the first bevel gear (9) is meshed with a second bevel gear (10) which corresponds to the cleaning blocks (8) in a threaded fit mode so that the cleaning blocks (8) can move in the radial direction.

2. The cleaning device for the multi-size economizer pipe as claimed in claim 1, wherein: the motor (2) is coaxially connected with a sleeve (5), and a loop bar (6) which can rotate synchronously and axially with the sleeve (5) and is connected with a first screw rod (4) is arranged in the sleeve (5) in a sliding manner.

3. The cleaning device for the multi-size economizer pipe as claimed in claim 2, wherein: the inner section of the sleeve (5) and the outer section of the loop bar (6) are of adaptive square structures.

4. The cleaning device for the multi-size economizer pipe as claimed in claim 1, wherein: a clamping groove (9a) used for driving the first bevel gear (9) to axially rotate is formed in the axial end face of the first bevel gear (9), and the clamping groove (9a) is communicated with the outside of the bearing seat (7).

5. The cleaning device for the multi-size economizer pipe as claimed in claim 1, wherein: no. two bevel gear (10) coaxial coupling has No. two lead screws (11), be equipped with slider (12) on No. two lead screws (11), clearance piece (8) end fixing is on slider (12).