A high-efficiency grinding device for boiler header pipe joints

Abstract

This utility model discloses a high-efficiency grinding device for boiler header pipe joints, including: a worktable, a motor, a louvered grinding wheel, a bearing seat, a bearing, a bearing inner sleeve, a T-shaped slider, and a slider groove. The motor is connected to the worktable and drives the louvered grinding wheel to rotate. The slider groove is connected to the worktable and is arranged parallel to the oblique front side of the louvered grinding wheel. The T-shaped slider is slidably connected in the slider groove. The bearing seat is connected to the T-shaped slider, and the bearing is connected to the bearing inner sleeve. The bearing inner sleeve is used to place the pipe fitting. Sliding the T-shaped slider causes the outer surface of the pipe fitting in the bearing inner sleeve to contact the louvered grinding wheel. By using the bearing inner sleeve to install the pipe fitting and adjusting the contact between the pipe fitting and the louvered grinding wheel by sliding the T-shaped slider in the slider groove, the pipe fitting rotates synchronously with the help of friction, achieving the purpose of uniformly grinding the outer surface of the pipe fitting, thus achieving the technical effect of compact structure and high grinding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of boiler header pipe joints, and in particular to a high-efficiency grinding device for boiler header pipe joints. Background Technology

[0002] As an important pressure-bearing component in boilers, the header has a large number of pipe joints welded on it. Before welding the pipe joints in the header, the welding area must be cleaned of rust and impurities. Otherwise, the weld is prone to cracks and other welding defects, which can cause boiler tube rupture and other safety accidents, directly affecting the safe operation of the boiler.

[0003] However, traditional manual rust removal and polishing methods have the following problems:

[0004] 1. Manual polishing is inefficient, labor-intensive for operators, and poses safety hazards;

[0005] 2. The surface cleanliness is uneven after manual polishing;

[0006] 3. Environmental pollution: Dust and rust metal particles are generated during the manual polishing process, which pollute the environment.

[0007] Therefore, it is necessary to design an efficient and environmentally friendly grinding system for boiler header pipe joints, for the surface pretreatment of steel pipes for header pipe joints. Utility Model Content

[0008] This utility model discloses a high-efficiency grinding device for boiler header pipe joints, which is used to solve related technical problems in the background art.

[0009] The technical solution provided by this utility model is as follows: a high-efficiency grinding device for boiler header pipe joints, comprising: a workbench, a motor, a louvered grinding wheel, a bearing seat, a bearing, a bearing inner sleeve, a T-shaped slider, and a slider groove;

[0010] The motor is connected to the worktable and drives the louvered grinding wheel to rotate. The slider groove is connected to the worktable and is set parallel to the oblique front side of the louvered grinding wheel. The T-shaped slider is slidably connected in the slider groove. The bearing seat is connected to the T-shaped slider. The bearing seat is connected to the bearing. The bearing inner sleeve is connected to the bearing. The bearing inner sleeve is used to place the pipe fitting.

[0011] The sliding T-shaped slider causes the outer part of the tube in the inner sleeve of the bearing to come into contact with the louvered grinding wheel.

[0012] In one embodiment, the front end of the T-shaped slider is provided with a driving component that drives the T-shaped slider to slide within the slider groove.

[0013] In one embodiment, the drive assembly includes: a lead screw nut seat, in which a lead screw is connected; a T-shaped slider with a through-hole, the end of the lead screw being rotatably connected to the through-hole via a rotating shaft, and the end of the rotating shaft passing through the T-shaped slider and having a retaining ring; and a handwheel connected to the other end of the lead screw.

[0014] In one embodiment, the bearing inner sleeve has a first step and a second step with gradually decreasing outer diameter; the outer side of the first step mates with the inner ring of the bearing, and the outer side of the second step is screwed with a nut, thereby locking the bearing inner sleeve and the inner ring of the bearing together.

[0015] In one embodiment, a protective cover is connected to the outside of the louvered grinding wheel, covering the left, rear and top sides of the louvered grinding wheel.

[0016] In one embodiment, a dust suction port is provided on the worktable below the louvered grinding wheel, and the dust suction port is connected to a suction-type dust collector.

[0017] In one embodiment, the suction port is funnel-shaped.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) The boiler header pipe joint high-efficiency grinding device of this utility model adopts bearing inner sleeve to install pipe fittings, and adjusts the contact between pipe fittings and louver grinding wheels by sliding T-shaped sliders in slider grooves. By using friction, the pipe fittings are rotated synchronously, achieving the purpose of uniformly grinding the outer surface of the pipe fittings. This achieves the technical effect of compact structure and high grinding efficiency, and solves the technical problems of low efficiency, unstable quality, high labor intensity and easy uneven grinding of existing boiler header pipe joint manual grinding.

[0020] (2) The boiler header pipe joint high-efficiency grinding device of this utility model adopts the method of setting a protective cover above the louvered grinding wheel and setting a suction dust collector below. By effectively collecting and treating the metal dust and rust particles generated during the grinding process, it achieves the purpose of reducing dust pollution, improving the cleanliness of the working environment and the safety of operation, thus realizing the technical effect of environmental protection, high efficiency and easy maintenance, and solving the technical problem of serious dust diffusion and affecting the health of operators and the workshop environment in the traditional grinding process. Attached Figure Description

[0021] Figure 1 This is a front view of the grinding device of this utility model;

[0022] Figure 2 This is a side view of the grinding device of this utility model;

[0023] Figure 3 This is a cross-sectional view of the T-shaped slider and the rotating shaft in this utility model;

[0024] Figure 4 This is a cross-sectional view of the bearing, bearing inner sleeve, and nut in this utility model.

[0025] The attached diagram is labeled as follows: 1. Motor; 2. Louvered grinding wheel; 3. Bearing housing; 4. Bearing; 5. Bearing inner sleeve; 6. T-shaped slider; 7. Slider groove; 8. Suction dust collector; 9. Protective cover; 10. Lead screw; 11. Lead screw nut seat; 12. Handwheel; 13. Connecting hole; 14. Rotating shaft; 15. Dust suction port; 16. Nut; 17. Retaining ring. Detailed Implementation

[0026] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model is a high-efficiency grinding device for boiler header pipe joints, including: a workbench, a motor 1, a louvered grinding wheel 2, a bearing seat 3, a bearing 4, a bearing inner sleeve 5, a T-shaped slider 6, and a slider groove 7. Specifically:

[0029] Motor 1 is mounted on the workbench to drive the louvered grinding wheel 2 to rotate and grind; the louvered grinding wheel 2 is vertically mounted on the output shaft of motor 1.

[0030] The slider groove 7 is installed on the worktable, in front of and parallel to the right side of the louvered grinding wheel 2. The slider groove 7 has a hollow structure with a "T"-shaped cross-section, which is used to restrict the movement direction of the T-shaped slider 6. The T-shaped slider 6 is slidably connected in the slider groove 7, and the bearing seat 3 is installed on its upper part.

[0031] The bearing 4 is installed inside the bearing housing 3. Its inner ring is connected to the bearing inner sleeve 5. The bearing inner sleeve 5 is a hollow cylindrical structure. Its inner cavity size matches the outer diameter of the header pipe joint and can be used to insert pipe fittings.

[0032] Specifically, the outer side of the bearing inner sleeve 5 is provided with a first step and a second step with gradually decreasing outer diameter. The outer side of the first step is interference-fitted with the inner ring of the bearing 4, and the outer side of the second step is screwed with a nut 16, which locks the bearing inner sleeve 5 and the inner ring of the bearing 4 together.

[0033] To enable the forward and backward movement of the T-shaped slider 6, a driving assembly is provided at the front end of the T-shaped slider 6. In this embodiment, the driving assembly includes: a lead screw nut seat 11, which is installed at the front of the slider groove 7, and a lead screw 10 is inserted therein; a connecting hole 13 is provided through the T-shaped slider 6, and one end of the lead screw 10 is connected to a rotating shaft 14, which is rotatably connected to the connecting hole 13, and one end of the rotating shaft 14 passes through the T-shaped slider 6 and is limited and fixed outside it by an elastic retaining ring 17.

[0034] The other end of the lead screw 10 is connected to the handwheel 12. The operator can rotate the handwheel 12 to drive the lead screw 10 to rotate. When the lead screw 10 moves, it pushes or pulls the T-shaped slider 6 to slide horizontally along the slider groove 7 through the rotating shaft 14 and the retaining ring 17.

[0035] The working principle of this embodiment is as follows: the motor 1 drives the louvered grinding wheel 2 to rotate at high speed. The operator turns the handwheel 12 to rotate the lead screw 10 and push the T-shaped slider 6 forward along the slider groove 7, thereby driving the tube in the bearing inner sleeve 5 to move closer to the louvered grinding wheel 2. After the two come into contact, the outside of the tube is affected by the friction of the working surface of the louvered grinding wheel 2, and rotates accordingly due to the cooperation of the bearing inner sleeve 5 and the bearing 4, thereby realizing continuous and uniform grinding of the outer surface of the workpiece.

[0036] In this embodiment, the workpiece is installed by using the bearing inner sleeve 5, and the contact between the pipe and the louvered grinding wheel 2 is adjusted by the T-shaped slider 6 sliding in the slider groove 7. The friction force makes the pipe rotate synchronously, which achieves the purpose of uniformly grinding the outer surface of the pipe. This achieves the technical effect of compact structure and high grinding efficiency, and solves the technical problems of low efficiency, unstable quality, high labor intensity and easy uneven grinding of existing boiler header pipe joints.

[0037] Example 2

[0038] Based on the above embodiments, further optimizations are made to avoid environmental pollution and harm to the operator's health caused by metal dust, rust particles and grinding debris generated by the high-speed rotation of the louvered grinding wheel during the grinding process. A protective cover 9 is added above the louvered grinding wheel 2, and a funnel-shaped dust suction port 15 is set at the workbench below it. The dust suction port 15 is connected to the suction dust collector 8.

[0039] The protective cover 9 covers the left, top and back of the louvered grinding wheel, which can effectively prevent the splashes from escaping directly. The suction dust collector 8 is turned on in real time during the grinding process, and absorbs the fine dust and debris scattered in the working area through negative pressure suction, thereby improving the safety and environmental performance of the device.

[0040] When used in conjunction with the suction dust collector 8, the work surface can be kept clean even during long-term continuous operation, preventing the inhalation of rust particles that could cause respiratory damage, while also facilitating the maintenance of grinding efficiency and precision.

[0041] In this embodiment, a protective cover 9 is installed above the louvered grinding wheel 2 and a suction dust collector 8 is installed below it. By effectively collecting and treating the metal dust and rust particles generated during the grinding process, the purpose of reducing dust pollution, improving the cleanliness of the working environment and operational safety is achieved. This results in an environmentally friendly, efficient, and easy-to-maintain technical effect, thereby solving the technical problem of serious dust diffusion and impact on the health of operators and the workshop environment during traditional grinding processes.

[0042] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-efficiency grinding device for boiler header pipe joints, characterized in that, include: Workbench, motor (1), louvered grinding wheel (2), bearing seat (3), bearing (4), bearing inner sleeve (5), T-shaped slider (6) and slider groove (7); The motor (1) is connected to the workbench and drives the louvered grinding wheel (2) to rotate. The slider groove (7) is connected to the workbench and is arranged parallel to the front side of the louvered grinding wheel (2). The T-shaped slider (6) is slidably connected in the slider groove (7). The bearing seat (3) is connected to the T-shaped slider (6). The bearing seat (3) is connected to the bearing (4). The bearing (4) is connected to the bearing inner sleeve (5). The bearing inner sleeve (5) is used to place pipe fittings. Slide the T-shaped slider (6) to drive the outside of the pipe in the inner sleeve of the bearing (5) to contact the louvered grinding wheel (2).

2. The high-efficiency grinding device for boiler header pipe joints as described in claim 1, characterized in that, The front end of the T-shaped slider (6) is provided with a driving component that drives the T-shaped slider (6) to slide within the slider groove (7).

3. The high-efficiency grinding device for boiler header pipe joints as described in claim 2, characterized in that, The drive assembly includes: a lead screw nut seat (11), in which a lead screw (10) is connected; a T-shaped slider (6) has a through hole (13), the end of the lead screw (10) is rotatably connected to the through hole (13) via a rotating shaft (14), and the end of the rotating shaft (14) passes through the T-shaped slider (6) and is provided with a retaining ring (17); a handwheel (12) is connected to the other end of the lead screw (10).

4. The high-efficiency grinding device for boiler header pipe joints as described in claim 1, characterized in that, The bearing inner sleeve (5) has a first step and a second step with gradually decreasing outer diameter; the outer side of the first step is engaged with the inner ring of the bearing (4), and the outer side of the second step is screwed with a nut (16), which locks the bearing inner sleeve (5) and the inner ring of the bearing (4) together.

5. The high-efficiency grinding device for boiler header pipe joints as described in claim 1, characterized in that, The outer side of the louvered grinding wheel (2) is connected to a protective cover (9), which covers the left, rear and top sides of the louvered grinding wheel (2).

6. The high-efficiency grinding device for boiler header pipe joints as described in claim 5, characterized in that, A dust suction port (15) is provided on the worktable below the louvered grinding wheel (2), and the dust suction port (15) is connected to a suction dust collector (8).

7. The high-efficiency grinding device for boiler header pipe joints as described in claim 6, characterized in that, The suction port (15) is trumpet-shaped.

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