Pipe fitting groove grinding device for chemical plant

Abstract

The utility model relates to the technical field of pipe fitting grinding devices, in particular to a pipe fitting groove grinding device for a chemical plant. According to the technical scheme, the polishing device comprises a supporting frame and a protection barrel installed at the upper end of the supporting frame, two symmetrically-arranged positioning pieces are installed on the side wall of the end of the protection barrel, the polishing device further comprises a rotating disc rotationally connected to the inner wall of the protection barrel, and a polishing plate is connected to the middle of the rotating disc; a pair of grinding rollers located on the two sides of the grinding plate correspondingly is arranged on one side of the rotary disc and used for grinding the end and the side wall of the pipe fitting groove. According to the pipe fitting polishing device, the two polishing rollers are arranged at the end of the rotating disc in a spacing-adjustable mode, the polishing spacing of the two polishing rollers can be adjusted through the spacing adjusting mechanism, and therefore the pipe fitting polishing device can be suitable for polishing pipe fittings with different diameters and is wide in application range; and the rotating disc is arranged in the protective cylinder, the end of the pipe fitting is located on the inner side of the protective cylinder during polishing, the protective cylinder can shield sparks generated during polishing, and therefore the polishing safety coefficient is increased.

Description

Technical Field

[0001] The present application relates to the technical field of pipe fitting grinding devices, and in particular to a pipe fitting groove grinding device for chemical plants. Background Art

[0002] Chemical pipe fittings play a vital role in chemical piping systems, not only connecting pipes but also controlling, changing direction, and diverting flow. A pipe bevel is the cut at the end of a pipe fitting to facilitate connection with adjacent pipe fittings.

[0003] After cutting, pipes have burrs on their bevels. Also, because the pipes are exposed to air, their outer walls may be rusted. Therefore, the bevels need to be polished after cutting to remove burrs and rust, ensuring good connection accuracy. Existing polishing devices use a polishing disc or a polishing drum to rotate and polish the end of the pipe, removing burrs and rust through friction.

[0004] Since different pipe fittings have different diameters, different pipe fittings require different grinding barrels when grinding. This has certain limitations in the grinding process, and friction sparks may occasionally be generated during grinding, which can easily cause certain injuries to workers if exposed. To this end, the present application proposes a pipe bevel grinding device for chemical plants. Utility Model Content

[0005] The purpose of this application is to address the technical problems pointed out in the background technology and to propose a pipe groove grinding device for chemical plants.

[0006] The technical solution of the present application is a pipe groove grinding device for chemical plants, comprising a support frame and a protective cylinder mounted on the upper end thereof, wherein the end side wall of the protective cylinder is mounted with two symmetrically arranged positioning members, and further comprising:

[0007] A turntable connected to the inner wall of the protective tube is rotated, a grinding plate is connected to the middle of the turntable, and a pair of grinding rollers are provided on one side of the turntable, respectively located on both sides of the grinding plate, for grinding the end and side wall of the groove of the pipe fitting;

[0008] The other side of the grinding plate is provided with a distance adjustment mechanism for adjusting the distance between the two grinding rollers, which is used for grinding pipes of different diameters.

[0009] Preferably, the grinding plate is strip-shaped, and both ends of the grinding plate extend to the edge of the outer wall of the turntable;

[0010] The outer ends of the two grinding rollers extend to the outer sides of the grinding plate.

[0011] Preferably, a U-shaped plate is fixedly connected to the middle of one end of the turntable away from the grinding plate, and a rotating rod is fixedly connected to the outer end of the U-shaped plate. A polygonal groove is provided at the end of the rotating rod, and the rotating rod is connected to an external driving rod.

[0012] Preferably, the distance adjustment mechanism comprises a pair of slide grooves provided on the side of the turntable, wherein sliders are symmetrically slidably connected in the two slide grooves, and the two grinding rollers are fixedly connected to the ends of the two sliders respectively;

[0013] The turntable is fixedly connected to two symmetrically arranged support blocks at the end edge near the U-shaped plate, and a bidirectional screw is rotatably connected between the two support blocks. The side wall transmission sleeve of the bidirectional screw is provided with two symmetrically arranged transmission blocks, and the two transmission blocks are respectively fixedly connected to the two sliders.

[0014] Preferably, the bidirectional screw is located on the inner side of the U-shaped plate, and the side wall of the bidirectional screw is provided with a control sleeve, and the control sleeve is located on both sides of the U-shaped plate.

[0015] Preferably, the positioning member includes a support tube connected to the side wall of the protective tube, and a cylinder is installed on the inner wall of the support tube. The telescopic end of the cylinder passes through the side wall of the protective tube and is fixedly connected to a positioning plate located on the inner side of the protective tube for positioning the pipe.

[0016] Preferably, a discharge port is provided on the lower end surface of the protective cylinder and is located below the grinding roller and the grinding plate, and a collection box is provided on the inner side of the support frame and is located below the discharge port for collecting grinding debris.

[0017] Compared with the prior art, this application has the following beneficial technical effects:

[0018] The present invention sets the adjustable spacing between the two grinding rollers at the end of the turntable, and the grinding spacing between the two grinding rollers can be adjusted by the spacing adjustment mechanism, so that it can be applied to the grinding of pipes with different diameters and has a wide range of applications.

[0019] By placing the turntable inside the protective tube, the end of the pipe is located inside the protective tube during grinding, and the protective tube can block the sparks generated by grinding, thereby improving the safety factor of grinding;

[0020] By opening a discharge port on the lower end surface of the protective tube, the debris generated during the grinding process is concentrated in the protective tube and slides into the collection box through the discharge port, which is convenient for collecting the debris and is environmentally friendly and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a pipe bevel grinding device used in chemical plants;

[0022] Figure 2 It is a schematic diagram of the internal structure of the protective tube in this application;

[0023] Figure 3 This is a schematic diagram of the connection structure between the distance adjustment mechanism and the turntable in this application;

[0024] Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle.

[0025] Reference numerals: 1, support frame; 2, protective tube; 3, positioning member; 31, support tube; 32, positioning plate;

[0026] 4. Grinding roller; 5. Grinding plate; 6. Discharge port; 7. Collection box;

[0027] 8. Pitch adjustment mechanism; 81. Slider; 82. Transmission block; 83. Bidirectional lead screw; 84. Control sleeve; 85. Slide; 86. Support block;

[0028] 9. Turntable; 10. U-shaped plate; 11. Turning rod. DETAILED DESCRIPTION

[0029] The technical solution of the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0031] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] Example

[0035] like Figure 1-4 As shown, the present application proposes a pipe bevel grinding device for chemical plants, including a support frame 1 and a protective cylinder 2 installed at its upper end, the end side wall of the protective cylinder 2 is installed with two symmetrically arranged positioning members 3, the positioning member 3 includes a support cylinder 31 connected to the side wall of the protective cylinder 2, the inner wall of the support cylinder 31 is installed with a cylinder, the telescopic end of the cylinder passes through the side wall of the protective cylinder 2 and is fixedly connected to a positioning plate 32 located on the inner side of the protective cylinder 2, which is used to position the pipe, wherein the positioning plate 32 is arc-shaped, and the two positioning plates 32 are moved close to each other and clamped on the side wall of the pipe to fix the pipe on the inner side of the protective cylinder 2.

[0036] It also includes a turntable 9 that is rotatably connected to the inner wall of the protective tube 2, wherein a U-shaped plate 10 is fixedly connected to the middle of the end of the turntable 9 away from the grinding plate 5, and a rotating rod 11 is fixedly connected to the outer end of the U-shaped plate 10. The end of the rotating rod 11 is provided with a polygonal groove, and the rotating rod 11 is connected to an external driving rod. The middle part of the turntable 9 is connected to the grinding plate 5, and the grinding plate 5 is used to grind the end of the pipe fitting. The grinding plate 5 is fixedly connected to the turntable 9. One side of the turntable 9 is provided with a pair of grinding rollers 4 located on both sides of the grinding plate 5. The two grinding rollers 4 are used together to grind the end side walls of the pipe fitting. The two grinding rollers 4 and the grinding plate 5 are used together to grind the end and side walls of the pipe fitting groove. The grinding plate 5 is strip-shaped, and both ends of the grinding plate 5 extend to the edge of the outer wall of the turntable 9; the outer ends of the two grinding rollers 4 extend to the outside of the grinding plate 5.

[0037] Furthermore, a distance adjustment mechanism 8 for adjusting the distance between the two grinding rollers 4 is provided on the other side of the grinding plate 5, which is used for grinding pipes of different diameters. The distance adjustment mechanism 8 includes a pair of slides 85 opened on the side of the turntable 9, and sliders 81 are symmetrically slidably connected in the two slides 85. The two grinding rollers 4 are respectively fixedly connected to the ends of the two sliders 81; the turntable 9 is fixedly connected to the edge of the end face near the U-shaped plate 10 with two symmetrically arranged support blocks 86, and a bidirectional lead screw 83 is rotatably connected between the two support blocks 86. The side wall transmission sleeve of the bidirectional lead screw 83 is provided with two symmetrically arranged transmission blocks 82, and the two transmission blocks 82 are respectively fixedly connected to the two sliders 81. The bidirectional lead screw 83 is located on the inner side of the U-shaped plate 10, and the side wall sleeve of the bidirectional lead screw 83 is provided with a control sleeve 84. The control sleeve 84 is located on both sides of the U-shaped plate 10, so that workers can rotate the bidirectional lead screw 83 to adjust the distance between the two transmission blocks 82.

[0038] In this embodiment, the lower end surface of the protective tube 2 is provided with a discharge port 6 located below the grinding roller 4 and grinding plate 5. A collection box 7 is provided on the inner side of the support frame 1, located below the discharge port 6, for collecting grinding debris. A support plate is connected to the inner wall of the support frame 1, and the collection box 7 is slidably placed on the upper end of the support plate. The upper end of the collection box 7 is curved to match the lower curved surface of the protective tube 2.

[0039] The working principle of this embodiment is as follows: when grinding the bevel of a pipe fitting, the end of the pipe fitting is first inserted into the protective tube 2, and then the cylinders inside the two support tubes 31 are activated, causing the telescopic ends of the two cylinders to extend, driving the two positioning plates 32 to move closer and clamp onto the side wall of the pipe fitting, thereby completing the fixing of the pipe fitting. At this time, the end of the pipe fitting contacts the grinding plate 5, and the spacing between the two grinding rollers 4 is adjusted so that the two grinding rollers 4 contact the side wall of the pipe fitting. Then, the external motor is activated, and the output shaft of the motor rotates to drive the driving rod, which has a polygonal end and is inserted into the polygonal groove at the end of the rotating rod 11. The driving rod rotates, driving the rotating rod 11, and the rotating rod 11 rotates. The rotating rod 11 rotates through the U-shaped plate 10 to drive the turntable 9, and finally the grinding plate 5 and the two grinding rollers 4 perform a circular motion to grind the bevel of the pipe fitting. It should be noted that the specific adjustment method of the distance adjustment mechanism 8 is to hold the control sleeve 84 and rotate the bidirectional screw 83. The bidirectional screw 83 rotates forward and backward to drive the two transmission blocks 82 to move closer or farther away, and then drives the two grinding rollers 4 to move closer or farther away through the two sliders 81, so that the two grinding rollers 4 can contact the side wall of the grinding pipe.

[0040] Sparks or debris generated during grinding are concentrated in the protective tube 2 to prevent sparks from causing harm to workers. The debris will fall into the collection box 7 through the discharge port 6 for easy collection and processing.

[0041] The above specific embodiments are merely preferred embodiments of the present application. Based on the technical solutions of the present application and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations of the above specific embodiments. The above specific embodiments are merely explanations of the present application and are not limitations of the present application.

Claims

1. A pipe bevel grinding device for chemical plants, comprising a support frame (1) and a protective tube (2) mounted on the upper end thereof, wherein the end side wall of the protective tube (2) is mounted with two symmetrically arranged positioning members (3), characterized in that: Also includes: A turntable (9) is rotatably connected to the inner wall of the protective tube (2), a grinding plate (5) is connected to the middle of the turntable (9), and a pair of grinding rollers (4) are provided on one side of the turntable (9), which are respectively located on both sides of the grinding plate (5) and are used to grind the end and side wall of the pipe groove; The other side of the grinding plate (5) is provided with a spacing adjustment mechanism (8) for adjusting the spacing between the two grinding rollers (4), and is used for grinding pipes of different diameters.

2. A pipe groove grinding device for chemical plants according to claim 1, characterized in that: The grinding plate (5) is strip-shaped, and both ends of the grinding plate (5) extend to the edge of the outer wall of the turntable (9); The outer ends of the two grinding rollers (4) extend to the outside of the grinding plate (5).

3. A pipe groove grinding device for chemical plants according to claim 2, characterized in that: A U-shaped plate (10) is fixedly connected to the middle of one end of the turntable (9) away from the grinding plate (5), and a rotating rod (11) is fixedly connected to the outer end of the U-shaped plate (10). A polygonal groove is formed at the end of the rotating rod (11), and the rotating rod (11) is connected to an external driving rod.

4. A pipe groove grinding device for chemical plants according to claim 3, characterized in that: The distance adjustment mechanism (8) includes a pair of slide grooves (85) provided on the side of the turntable (9), wherein the two slide grooves (85) are symmetrically slidably connected with sliders (81), and the two grinding rollers (4) are respectively fixedly connected to the ends of the two sliders (81); The turntable (9) is fixedly connected to two symmetrically arranged support blocks (86) at the edge of the end face close to the U-shaped plate (10), a bidirectional lead screw (83) is rotatably connected between the two support blocks (86), and a side wall transmission sleeve of the bidirectional lead screw (83) is provided with two symmetrically arranged transmission blocks (82), and the two transmission blocks (82) are fixedly connected to the two sliders (81) respectively.

5. A pipe groove grinding device for chemical plants according to claim 4, characterized in that: The bidirectional lead screw (83) is located inside the U-shaped plate (10), and a control sleeve (84) is provided on the side wall of the bidirectional lead screw (83), and the control sleeve (84) is located on both sides of the U-shaped plate (10).

6. The pipe groove grinding device for chemical plants according to claim 1, characterized in that: The positioning member (3) comprises a support tube (31) connected to the side wall of the protective tube (2), a cylinder being installed on the inner wall of the support tube (31), a telescopic end of the cylinder penetrating the side wall of the protective tube (2) and fixedly connected to a positioning plate (32) located inside the protective tube (2), for positioning the pipe.

7. The pipe groove grinding device for chemical plants according to claim 1, characterized in that: The lower end surface of the protective cylinder (2) is provided with a discharge port (6) located below the grinding roller (4) and the grinding plate (5), and the inner side of the support frame (1) is provided with a collection box (7) located below the discharge port (6) for collecting grinding debris.

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