Pipeline inner wall polishing machining equipment

Abstract

The utility model discloses pipeline inner wall polishing equipment, which is correspondingly matched with a roller carrier for placing a pipeline and enabling the pipeline to rotate along the axis, and comprises a moving track, a moving platform, a hydraulic station, a cooling system, a cantilever beam, a cantilever beam bracket, a polishing head pressing mechanism and a hydraulic polishing head, the hydraulic station and the cooling system are arranged on the movable platform, the cantilever beam is transversely distributed, the tail end of the cantilever beam is fixed to the front side of the movable platform through a fixing frame, the middle of the cantilever beam is arranged on the movable rail through a cantilever beam support, and the polishing head pressing mechanism is arranged on the front side of the cantilever beam. The hydraulic polishing head is fixed to the front end of the cantilever beam. The device is wide in adaptive pipeline diameter range; the simultaneous movement in two directions of pipeline autorotation and grinding head advancing is realized; the grinding head is prevented from jumping and the grinding efficiency is improved; the dedusting and silencing space can be adjusted according to the length of the pipeline.

Description

Technical Field

[0001] The utility model relates to a pipeline inner wall grinding and processing device. Background Technique

[0002] For the grinding of the inner wall of pipelines, in the prior art, Method 1 is to use manual grinding. Workers use wire brushes or gauze to grind, which has the disadvantages of high labor intensity, low production efficiency, and poor grinding quality, affecting the grinding effect inside the pipeline. 2. The lengths of petrochemical pipelines vary, and some pipelines reach 12 meters. The pipe diameters also vary, and the pipe diameters are relatively small, with limited working space. It is impossible for workers to effectively grind pipelines with longer lengths. 3. Existing inner wall grinding equipment uses a cantilever beam to apply pressure to the grinding head. When the grinding head rotates, it will move forward along the inner wall of the pipe, generating irregular disturbances and bounces. The farther it goes into the pipeline, the more obvious the bounce is because it is farther away from the support, and the lower the grinding efficiency. Therefore, it is necessary to add support to the grinding head to improve the grinding efficiency. 4. Existing inner wall grinding equipment increases the diameter of the cantilever beam to increase the support rigidity and the fitting force between the grinding head and the pipe wall, but the applicability of the equipment is reduced and it cannot be used for pipes with small diameters. 5. The grinding of the inner wall of existing seamless steel pipes will generate dust. Many workshops do not handle the dust generated during grinding, resulting in the dust accumulating on the inner wall of the pipeline. This will affect the smoothness of the inner wall of the pipeline during grinding, thereby affecting the overall grinding quality of the pipeline and causing dust pollution. Therefore, it is necessary to provide a pipe internal grinding machine that can suck away the dust after grinding while grinding, improving the grinding quality and protecting the environment. 6. Grinding is essentially high-speed friction, thus generating relatively large noise. The pipeline itself acts as an amplifier, and the grinding process generates relatively large noise pollution. Therefore, the equipment needs to effectively control the noise. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a pipeline inner wall grinding and processing device with a relatively wide range of applicable pipeline diameters, which can be used for pipes with diameters of 18 - 48 inches, and the applicable range of the inner diameter of the pipeline is reduced; an omnidirectional wheel is used to solve the movement in two directions simultaneously, namely the rotation of the pipeline and the forward movement of the grinding head; a grinding head pressing mechanism is used to press the grinding head to prevent the grinding head from bouncing and improve the grinding efficiency; the dust removal and noise reduction space can be adjusted according to the pipeline length.

[0004] To solve the above technical problems, a technical solution adopted by the present utility model is: to provide a pipeline inner wall grinding and processing device, which correspondingly cooperates with a roller rack for placing a pipeline and rotating the pipeline along the axis. The device includes a moving track, a moving platform, a hydraulic station, a cooling system, a cantilever beam, a cantilever beam bracket, a grinding head pressing mechanism and a hydraulic grinding head. The moving track is horizontally fixed on the ground. The moving platform is slidably arranged on the moving track. The hydraulic station and the cooling system are arranged on the moving platform. The cantilever beam is horizontally distributed and the tail end is fixed to the front side of the moving platform through a fixing frame. The middle part of the cantilever beam is arranged on the moving track through a cantilever beam bracket. The grinding head pressing mechanism is arranged on the front side of the cantilever beam. The hydraulic grinding head is fixed to the front end of the cantilever beam.

[0005] In a preferred embodiment of the present utility model, the cantilever beam bracket includes a rail vehicle, a dovetail groove seat, a jacking nut lifting type worm gear screw jack, a roller seat, a mounting seat and a handwheel linear guide.

[0006] In a preferred embodiment of the present utility model, the rail vehicle is horizontally arranged on the moving track. The dovetail groove seat is arranged in an up-and-down distribution structure and is horizontally fixed on the top of the rail vehicle. The jacking nut lifting type worm gear screw jack is longitudinally arranged on the dovetail groove seat and the driving end faces upward. The mounting seat is fixed on the dovetail groove seat and a longitudinally distributed handwheel linear guide is arranged on the top. The driving ends at the top of the jacking nut lifting type worm gear screw jack and the bottom of the handwheel linear guide are provided with roller seats distributed up and down relatively to clamp the cantilever beam.

[0007] In a preferred embodiment of the present utility model, adjusting bolts distributed horizontally are oppositely arranged on both sides of the upper surface of the rail vehicle and correspond to both sides of the upper part of the dovetail groove seat.

[0008] In a preferred embodiment of the present utility model, a longitudinally distributed slide rail is arranged on the column of the mounting seat. The roller seat is correspondingly connected with the slider on the slide rail.

[0009] In a preferred embodiment of the present utility model, the grinding head pressing mechanism includes a hoop assembly, a guide post, an adjusting motor, a slide seat, a lead screw, a connecting rod, an adjusting rod and an omnidirectional wheel.

[0010] In a preferred embodiment of the present utility model, the hoop assembly includes a first hoop assembly, a second hoop assembly, and a third hoop assembly. The first hoop assembly, the second hoop assembly, and the third hoop assembly are sequentially fixed on the cantilever beam from front to back. Two guide columns are horizontally arranged and are connected in parallel between the upper parts of the second hoop assembly and the third hoop assembly. The adjusting motor is horizontally distributed and vertically fixed at the rear of the third hoop assembly. The sliding seat is slidably arranged on the guide columns. Two parallel distributed lead screws are horizontally arranged at the bottom of the sliding seat. The adjusting motor is connected to the lead screws by a gear set. Two parallel distributed connecting rods are horizontally arranged on both sides of the top of the sliding seat. The adjusting rod includes a first adjusting rod and a second adjusting rod. An obliquely distributed first adjusting rod and a second adjusting rod are respectively hinged on the first hoop assembly and the connecting rod. An omnidirectional wheel is connected between the first adjusting rod and the second adjusting rod.

[0011] In a preferred embodiment of the present utility model, the hydraulic grinding head includes a hydraulic motor, a coupling, a bearing housing, and a grinding head connected in sequence.

[0012] In a preferred embodiment of the present utility model, a segmented combined sound insulation and dust removal chamber is arranged outside the pipeline inner wall grinding and processing equipment. The sound insulation and dust removal chamber uses a closed door or a PVC curtain on the material side and a sound insulation and air supply elbow on the drive side.

[0013] In a preferred embodiment of the present utility model, a vertical cartridge filter is also connected to the sound insulation and dust removal chamber.

[0014] The beneficial effects of the present utility model are as follows: A pipeline inner wall grinding and processing equipment pointed out by the present utility model has a wide range of applicable pipeline diameters and can be used for 18 - 48 - inch pipes, and the applicable range of the inner diameter of the pipeline is reduced; the omnidirectional wheel is used to solve the movement in two directions simultaneously during the rotation of the pipeline and the advancement of the grinding head; the grinding head pressing mechanism is used to press the grinding head to prevent the grinding head from jumping and improve the grinding efficiency; the dust removal and sound insulation space can be adjusted according to the length of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0016] Figure 1 is a three - dimensional view of a preferred embodiment of a pipeline inner wall grinding and processing equipment of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view of part A of

[0018] Figure 3 is a perspective view of a grinding head pressing mechanism of a preferred embodiment of a pipeline inner wall grinding and processing device of the present utility model;

[0019] Figure 4 is a perspective view of a hydraulic grinding head of a preferred embodiment of a pipeline inner wall grinding and processing device of the present utility model;

[0020] Figure 5 is a structural schematic diagram of a segmented combined sound insulation and dust removal chamber of a preferred embodiment of a pipeline inner wall grinding and processing device of the present utility model;

[0021] Figure 6 is a perspective view corresponding to and cooperating with a roller rack for placing a pipeline and rotating the pipeline along the axis of the pipeline inner wall grinding and processing device of the present utility model. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 Combined with Figures 2-6 As shown, the embodiments of the present utility model include:

[0024] A pipeline inner wall grinding and processing device corresponding to and cooperating with a roller rack for placing a pipeline 30 and rotating the pipeline 30 along the axis, including a moving track 1, a moving platform 2, a hydraulic station and a cooling system 3, a cantilever beam 4, a cantilever beam bracket, a grinding head pressing mechanism and a hydraulic grinding head.

[0025] Among them, the moving track 1 is horizontally fixed on the ground to provide horizontal movement guidance.

[0026] The moving platform 2 is slidably arranged on the moving track 1, and the moving platform 2 is provided with a motor drive assembly 32, which can drive the moving platform 2 to move back and forth along the moving track 1.

[0027] The hydraulic station and the cooling system 3 are arranged on the moving platform 2 to provide driving force.

[0028] The cantilever beam 4 is horizontally distributed and the tail end is fixed to the front side of the moving platform 2 through a fixing frame 5, and the cantilever beam 4 is driven by the moving platform 2 to move back and forth along the moving guide rail.

[0029] The middle part of the cantilever beam 4 is arranged on the moving track 1 through a cantilever beam support, which plays a front-end support role. The cantilever beam support can adjust the position of the cantilever beam 4 up, down, left and right.

[0030] The cantilever beam support includes a rail vehicle 6, a dovetail groove seat 7, a jacking nut lifting type worm screw elevator 8, a roller seat 9, a mounting seat 10 and a handwheel linear guide 11.

[0031] The rail vehicle 6 is horizontally arranged on the moving track 1, and can move back and forth on the moving track 1 for adjustment, and is equipped with a locking mechanism to ensure stable fixation after movement.

[0032] The dovetail groove seat 7 is arranged in an up-and-down distribution structure and is horizontally fixed on the top of the rail vehicle 6, and can be horizontally adjusted along the dovetail groove direction. On both sides of the upper surface of the rail vehicle 6, there are horizontally distributed adjusting bolts 12 opposite to the upper sides of both sides of the dovetail groove seat 7, and the moving position of the dovetail groove seat 7 is adjusted through the adjusting bolts 12 on both sides.

[0033] The jacking nut lifting type worm screw elevator 8 is longitudinally arranged on the dovetail groove seat 7 and the driving end faces upward. The mounting seat 10 is fixed on the dovetail groove seat 7 and a longitudinally distributed handwheel linear guide 11 is arranged on the top. The driving ends at the top of the jacking nut lifting type worm screw elevator 8 and the driving ends at the bottom of the handwheel linear guide 11 are provided with roller seats 9 distributed up and down relatively to clamp the cantilever beam 4. The longitudinal position of the cantilever beam 4 is adjusted through the jacking nut lifting type worm screw elevator 8 and the handwheel linear guide 11, and at the same time, the cantilever beam 4 can move on the roller seat 9 conveniently.

[0034] On the column of the mounting seat 10, there is a longitudinally distributed slide rail 13, and the roller seat 9 is correspondingly connected with the slider on the slide rail 13 to ensure that the roller seat 9 moves longitudinally and linearly along the slide rail 13.

[0035] The grinding head pressing mechanism is arranged on the front side of the cantilever beam 4 to assist in fixing the grinding position and prevent the hydraulic grinding head from moving. The grinding head pressing mechanism includes a hoop assembly, a guide post 14, an adjusting motor 15, a sliding seat 16, a lead screw 33, a connecting rod 17, an adjusting rod and an omnidirectional wheel 18.

[0036] The hoop assembly includes a first hoop assembly 19, a second hoop assembly 20 and a third hoop assembly 21. The first hoop assembly 19, the second hoop assembly 20 and the third hoop assembly 21 are sequentially fixed on the cantilever beam 4 from front to back, which is convenient for loading and unloading and at the same time facilitates the connection and fixation of other components.

[0037] There are two horizontally arranged guide posts 14, which are parallelly connected between the upper parts of the second hoop assembly 20 and the third hoop assembly 21 to provide horizontal guidance.

[0038] The adjusting motor 15 is horizontally distributed and vertically fixed at the rear of the third hoop assembly 21. The sliding seat 16 is slidably arranged on the guide post 14. Two parallel lead screws 33 are horizontally arranged at the bottom of the sliding seat 16. The adjusting motor 15 is connected to the lead screws 33 by a gear set, and the sliding seat 16 is driven by the adjusting motor 15 to move back and forth along the guide post 14.

[0039] On both sides of the top of the sliding seat 16, parallel distributed connecting rods 17 are horizontally arranged. The adjusting rod includes a first adjusting rod 22 and a second adjusting rod 23. Diagonally distributed first adjusting rod 22 and second adjusting rod 23 are respectively hinged on the first hoop assembly 19 and the connecting rod 17. An omnidirectional wheel 18 is connected between the first adjusting rod 22 and the second adjusting rod 23. The stable pressing effect on the hydraulic grinding head is realized through two groups of first hoop assemblies 19, connecting rods 17 and omnidirectional wheels 18.

[0040] Spring sections 24 are arranged on both the connecting rod 17 and the first adjusting rod 22 to generate a certain pre-pressure after the omnidirectional wheel 18 contacts the inner wall of the pipeline 30.

[0041] The hydraulic grinding head is fixed at the front end of the cantilever beam 4 for convenient grinding. The hydraulic grinding head includes a hydraulic motor 25, a coupling 26, a bearing chamber 27 and a grinding head 28 connected in sequence, and the grinding head 28 is driven by the hydraulic motor 25 for grinding.

[0042] An externally arranged segmented combined sound insulation and dust removal chamber 29 is provided outside the inner wall grinding processing equipment of the pipeline 30 to reduce or eliminate the propagation and influence of noise. The ground of the sound insulation and dust removal chamber 29 is pre-leveled, and positioning anchor bolts are pre-buried; the number of sound insulation and dust removal chambers 29 is adjusted according to the length of the pipeline 30, and the positioning anchor bolts are sequentially placed starting from one end of the pipeline 30. The sound insulation and dust removal chamber 29 adopts a closed door or a PVC curtain on the material side and a sound insulation and air supply elbow on the driving side. It is also possible to change the noise source, reduce the noise generation frequency, reduce the noise generation amount or improve the noise generation method, such as: shock absorption, deceleration, lubrication, etc. of mechanical equipment; control of sound propagation: by changing the sound propagation path, reducing the sound propagation distance and propagation loss, such as: using sound insulation materials in buildings. The sound insulation and dust removal chamber 29 includes a galvanized punched plate, a sound insulation felt, 48 kg of glass wool, 32 kg of glass wool and a galvanized punched plate sequentially arranged from the inside to the outside, and the ends are fixed by a U-shaped 3 mm carbon steel fixed frame.

[0043] An upright cartridge filter (not shown in the drawings) is also connected to the sound insulation and dust removal chamber 29 for adsorbing the dust generated during the grinding process.

[0044] Working principle: The pipeline to be polished is placed on the roller rack, which drives the pipeline to rotate in place on the roller rack. Adjust the gap between the two rollers of the support roller assembly to make the inner wall of the pipeline fit the grinding head. Start the hydraulic motor, and the grinding head rotates at high speed. The pipeline rotates by itself for grinding, and the moving platform moves forward to drive the grinding head forward. When the grinding head pressing mechanism enters the pipeline, immediately adjust the position of the omnidirectional wheel with the adjustment motor, so that the omnidirectional wheel contacts the inner wall of the pipeline and compresses the spring section to generate a certain preload. The grinding head pressing mechanism can also be tensioned after the grinding head penetrates into the pipe to grind a certain part of the pipeline. The grinding head mechanism is powered by a hydraulic motor at the front end, and is connected by a coupling in the middle. A large amount of dust will be generated during the grinding process. The single-head collection method is adopted, and an upright cartridge dust collector is used for combined collection and purification, and finally discharged at a height of 15 meters.

[0045] In summary, a pipeline inner wall grinding and processing equipment pointed out by the present utility model has a wide range of applicable pipeline diameters, can be used for 18-48 inch pipes, and the applicable range of pipeline inner diameters is reduced; the omnidirectional wheel is used to solve the movement in two directions of pipeline rotation and grinding head advancement at the same time; the grinding head pressing mechanism is used to press the grinding head to prevent the grinding head from jumping and improve the grinding efficiency; the dust removal and noise reduction space can be adjusted according to the pipeline length.

[0046] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A pipeline inner wall grinding and processing equipment, which is matched with a roller frame on which the pipeline is placed and rotated along the pipeline axis, characterized in that: It includes a moving track, a moving platform, a hydraulic station and a cooling system, a cantilever beam, a cantilever beam bracket, a grinding head clamping mechanism and a hydraulic grinding head. The moving track is horizontally fixed on the ground, the moving platform is slidably arranged on the moving track, the hydraulic station and the cooling system are arranged on the moving platform, the cantilever beam is laterally distributed and the tail end is fixed to the front side of the moving platform through a fixing frame, the middle part of the cantilever beam is arranged on the moving track through the cantilever beam bracket, the grinding head clamping mechanism is arranged on the front side of the cantilever beam, and the hydraulic grinding head is fixed to the front end of the cantilever beam.

2. The pipeline inner wall grinding processing equipment according to claim 1 is characterized in that: The cantilever beam bracket includes a rail car, a dovetail groove seat, a jacking nut lifting type turbine screw lifter, a roller seat, a mounting seat and a handwheel linear guide rail.

3. The pipeline inner wall grinding processing equipment according to claim 2 is characterized in that: The rail car is horizontally arranged on the moving track, the dovetail groove seat is in an up-and-down distributed structure and is horizontally fixed on the top of the rail car, the lifting nut lifting type turbine screw lift is longitudinally arranged on the dovetail groove seat and the driving end is arranged upward, the mounting seat is fixed on the dovetail groove seat and a longitudinally distributed handwheel linear guide is arranged on the top, and the driving end at the top of the lifting nut lifting type turbine screw lift and the driving end at the bottom of the handwheel linear guide are provided with roller seats relatively distributed up and down and clamped on the cantilever beam.

4. The pipeline inner wall grinding processing equipment according to claim 3 is characterized in that: The upper surface of the rail vehicle is provided with transversely distributed adjusting bolts on both sides corresponding to the upper sides of the dovetail groove seat.

5. The pipeline inner wall grinding processing equipment according to claim 3 is characterized in that: A longitudinally distributed slide rail is arranged on the column of the mounting seat, and the roller seat is correspondingly connected to the slider on the slide rail.

6. The pipeline inner wall grinding processing equipment according to claim 1, characterized in that: The grinding head clamping mechanism comprises a clamping hoop assembly, a guide column, an adjusting motor, a sliding seat, a screw rod, a connecting rod, an adjusting rod and an omnidirectional wheel.

7. The pipeline inner wall grinding processing equipment according to claim 6, characterized in that: The hoop assembly includes a first hoop assembly, a second hoop assembly and a third hoop assembly, and the first hoop assembly, the second hoop assembly and the third hoop assembly are fixed on the cantilever beam in sequence from front to back, the guide column is horizontally provided with two and connected in parallel to the upper part between the second hoop assembly and the third hoop assembly, the adjusting motor is horizontally distributed and vertically fixed to the rear part of the third hoop assembly, the slide seat is slidably arranged on the guide column, two parallel screw rods are transversely arranged at the bottom of the slide seat, the adjusting motor is connected to the screw rod by a gear set, and parallel connecting rods are transversely arranged on both sides of the top of the slide seat, the adjusting rod includes a first adjusting rod and a second adjusting rod, and the first hoop assembly and the connecting rod are respectively hinged with the first adjusting rod and the second adjusting rod distributed obliquely, and an omnidirectional wheel is connected between the first adjusting rod and the second adjusting rod.

8. The pipeline inner wall grinding processing equipment according to claim 1, characterized in that: The hydraulic grinding head comprises a hydraulic motor, a coupling, a bearing chamber and a grinding head which are connected in sequence.

9. The pipeline inner wall grinding processing equipment according to claim 1, characterized in that: A segmented combined silencing and dust removal chamber is arranged outside the pipeline inner wall grinding and processing equipment. The silencing and dust removal chamber adopts a closed door or a PVC curtain on the material side and a silencing air supply elbow on the driving side.

10. The pipeline inner wall grinding processing equipment according to claim 9, characterized in that: The silencer and dust removal chamber is also connected with a vertical filter cartridge dust collector.

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