Shot blasting machine and shot blasting device for large pipeline

Abstract

The utility model belongs to the technical field of surface treatment, and particularly relates to a shot blasting machine and a shot blasting device for a large pipeline. The shot blasting machine for the large pipeline comprises a blasting head, a pitching assembly, a rotating assembly and a transverse moving assembly, the blasting head is used for blasting steel shots to polish a sample to be machined, and the blasting head comprises a blasting head shell; the pitching assembly is arranged on the back face of the ramming head and used for controlling the pitching action of the ramming head. The rotating assembly is arranged at the bottom of the pitching assembly and used for controlling the ramming head and the pitching assembly to jointly complete the rotating action; the transverse moving assembly is arranged at the bottom of the rotation assembly and used for controlling the ramming head, the pitching assembly and the rotation assembly to move in the radial direction of the tower pipe. In addition, the utility model further discloses a shot blasting device, and the shot blasting device utilizes the shot blasting machine to carry out shot blasting and grinding on the outer surface of the tower pipe. According to the utility model, a plurality of components are matched for use, so that the polishing head can be more effectively attached to the outer surface of a sample to be processed, and the polishing effect on the tower pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of surface treatment, and particularly relates to a shot blasting machine and a shot blasting device for large pipelines. Background Art

[0002] The shot blasting process is a mechanical surface treatment process. Its principle mainly uses the action of centrifugal force to throw steel shots at high speed onto the surface of the workpiece to achieve purposes such as cleaning, strengthening, surface finishing, or deburring. As a key device in this field, shot blasting machines are increasingly widely used and indispensable. The existing shot blasting equipment on the market is mostly used for small parts and workpieces, and there are also requirements for the shape of the workpiece. Different equipment can handle workpieces with different shapes, and the same equipment can only shot blast workpieces with the same or similar shapes. In addition, the existing shot blasting equipment also has requirements for the length of the workpiece. Once the workpiece is too long, construction cannot be carried out, and only a small part of the workpiece can be shot blasted.

[0003] For large workpieces such as wind power tower pipes, the width, height, or diameter can reach more than ten meters, and the shape may also change from large to small. When the length is the longest, it can reach 40 meters. The existing sandblasting equipment on the market cannot meet the requirements. Most sandblasting equipment can only shot blast a small part at both ends of the outer surface of the wind power tower pipe, and the remaining large area still needs to be processed manually. This not only has low efficiency, poor stability of the shot blasting quality, but also poses a great potential safety hazard to personal safety. There are also a small number of large shot blasting machines on the market that can only shot blast the outer surface of wind power tower pipes with a consistent shape (no change in diameter). Once the diameter of the wind power tower pipe changes, the shot blasting machine cannot fit with the wind power tower pipe, thus reducing the shot blasting effect. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that the existing shot blasting device cannot effectively shot blast and polish the outer surface of large wind power tower pipes, and a shot blasting machine and a shot blasting device for large pipelines are proposed. It can effectively shot blast and polish the entire outer surface of large wind power tower pipes, improve the polishing effect, and achieve the purposes of removing impurities and burrs.

[0005] To achieve the above purpose, the technical solution adopted is:

[0006] A shot blasting machine for large pipelines, comprising:

[0007] A shot head, which is used to throw steel shots to polish the sample to be processed. The shot head includes a shot head housing;

[0008] A pitching assembly, which is arranged on the back of the shot head. The pitching assembly is used to control the pitching movement of the shot head;

[0009] A slewing assembly, which is arranged at the bottom of the pitching assembly. The slewing assembly is used to control the shot head and the pitching assembly to jointly complete the slewing movement;

[0010] and a lateral translation component disposed at the bottom of the slewing component, the lateral translation component being configured to control the radial movement of the shot head, the pitching component and the slewing component along the sample to be processed.

[0011] According to the shot blasting machine for large pipelines of the present invention, further, the working surface of the shot head is an arc-shaped surface, and the working surface is used to fit the outer surface of the sample to be processed.

[0012] According to the shot blasting machine for large pipelines of the present invention, further, two shot blasting machines arranged side by side are provided inside the shot head housing, and their shot blasting ports face the outer surface of the sample to be processed.

[0013] According to the shot blasting machine for large pipelines of the present invention, further, a strong magnet is further provided at the upper part inside the shot head housing, and the strong magnet is used to adsorb impurities rebounded by the sample to be processed.

[0014] According to the shot blasting machine for large pipelines of the present invention, further, a feed port is provided at the back of the shot blasting machine, a discharge port is provided at the bottom of the shot head housing, and a dust removal port is provided at the top of the shot head housing.

[0015] According to the shot blasting machine for large pipelines of the present invention, further, the pitching component includes a base, a support frame and a pitching cylinder. One end of the support frame is fixed to the base, and the other end is hinged to the shot head housing; one end of the pitching cylinder is hinged to the base, and the other end is hinged to the shot head housing.

[0016] According to the shot blasting machine for large pipelines of the present invention, further, the slewing component includes a slewing support bearing and a slewing cylinder. The inner ring of the slewing support bearing is fixedly provided at the bottom of the base, the output end of the slewing cylinder is hinged to the base, and the slewing cylinder expands and contracts to drive the base to reciprocally rotate along the slewing support bearing.

[0017] According to the shot blasting machine for large pipelines of the present invention, further, the lateral translation component includes a lateral translation track. The outer ring of the slewing support bearing and the slewing cylinder are arranged on the lateral translation track, and a rack is provided at the bottom of the lateral translation track. The motor drives the lateral translation track to achieve lateral translation through gear-rack transmission.

[0018] The present invention also provides a shot blasting device, comprising:

[0019] A frame;

[0020] The shot blasting machine for large pipelines as described above, the shot blasting machine is installed on the frame;

[0021] A recovery component, which is installed on the frame below the shot blasting machine and is used to recover the steel shots and impurities falling from the shot blasting machine;

[0022] The screening component is installed on the frame. One end of the screening component is connected to the recycling component, and the other end is connected to the shot blasting machine. The steel shots in the recycling component are screened by the screening component and then re-enter the shot blasting machine.

[0023] And the longitudinal movement track, which is parallel to the axis of the sample to be processed. The shot blasting machine, the frame, the recycling component and the screening component are slidably arranged on the longitudinal movement track.

[0024] Adopting the above technical solution, the beneficial effects obtained are as follows:

[0025] The overall design of the present utility model is precise. Through the mutual cooperation of the base, the support frame and the pitching cylinder, the pitching movement of the shot head in the working space is realized; through the mutual cooperation of the slewing bearing and the slewing cylinder, the slewing movement of the shot head in the working space is realized; by using the transverse movement track, the movement of the shot head in the radial direction of the sample to be processed is realized. The combined use of multiple components enables the arc-shaped working surface of the shot head to more effectively fit the outer surface of the sample to be processed, ensuring that the steel shots ejected from the shot head can be more fully used for grinding the sample to be processed, and avoiding scattering into the outside space and causing waste of raw materials.

[0026] Two shot blasting devices are arranged in the shot head of the present utility model to repeatedly grind the sample to be processed, enhancing the grinding effect on the sample to be processed.

[0027] The strong magnets arranged in the shot head housing of the present utility model can effectively adsorb the impurities rebounded by the sample to be processed, reducing the impact rate of the rebounded impurities on other parts of the shot head, so as to improve the service life of the shot head. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments of the present utility model will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the present utility model, rather than limiting all embodiments of the present utility model thereto.

[0029] Figure 1 It is one of the structural schematic diagrams of the shot blasting machine according to the first embodiment of the present utility model;

[0030] Figure 2 It is the second structural schematic diagram of the shot blasting machine according to the first embodiment of the present utility model;

[0031] Figure 3 It is the third structural schematic diagram of the shot blasting machine according to the first embodiment of the present utility model;

[0032] Figure 4 It is one of the structural schematic diagrams of the shot blasting device according to the second embodiment of the present utility model;

[0033] Figure 5It is the second structural schematic diagram of the shot blasting device according to the second embodiment of the present utility model;

[0034] Figure 6 It is the first schematic diagram of the relative positions of the shot blasting device and the tower pipe according to the second embodiment of the present utility model;

[0035] Figure 7 It is the second schematic diagram of the relative positions of the shot blasting device and the tower pipe according to the second embodiment of the present utility model.

[0036] The meanings represented by the serial numbers in the figure are as follows:

[0037] 100. Shot head, 110. Flexible plate, 120. Shot blaster, 121. Shot blasting motor, 130. Strong magnet, 131. Magnetic plate, 140. Feed inlet, 150. Discharge outlet, 151. Screw rod, 152. Discharge motor, 160. Dust removal port;

[0038] 200. Pitching assembly, 210. Base, 220. Support frame, 230. Pitching cylinder, 240. Pin shaft;

[0039] 300. Rotary assembly, 310. Rotary support bearing, 320. Rotary cylinder;

[0040] 400. Transverse movement assembly, 410. Transverse movement track, 420. Rack, 430. Gear;

[0041] 500. Frame;

[0042] 600. Recycling assembly, 610. Recycling baffle, 620. Recycling track, 630. Recycling box;

[0043] 700. Screening assembly, 710. Elevator, 720. Steel shot box, 730. Separator;

[0044] 800. Longitudinal movement track;

[0045] 900. Maintenance platform, 910. Tower pipe, 920. Roller stand. Detailed implementation manners

[0046] In the following, the exemplary solutions of the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present utility model. Unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the relevant field.

[0047] Embodiment 1

[0048] As Figures 1-7As shown in the figure, the shot blasting machine for large pipelines in this embodiment includes a shot head 100, a pitching component 200, a slewing component 300, and a traversing component 400. The shot head 100 is used to throw steel shots to polish the sample to be processed, and the shot head 100 includes a shot head housing. The pitching component 200 is arranged on the back of the shot head 100, and the pitching component 200 is used to control the pitching movement of the shot head 100; the slewing component 300 is arranged at the bottom of the pitching component 200, and the slewing component 300 is used to control the slewing movement jointly completed by the shot head 100 and the pitching component 200; the traversing component 400 is arranged at the bottom of the slewing component 300, and the traversing component 400 is used to control the radial movement of the shot head 100, the pitching component 200, and the slewing component 300 along the sample to be processed. The pitching component 200, the slewing component 300, and the traversing component 400 cooperate with each other to adjust the working angle of the shot head 100, so that the working surface of the shot head 100 fits more closely to the outer surface of the sample to be processed, thereby improving the polishing effect of the shot blasting machine.

[0049] As Figure 1 shown, the working surface of the shot head 100 is an arc surface, and this working surface is used to fit the outer surface of the sample to be processed. Further, a flexible plate 110 is bonded to the working surface side of the shot head housing. During the actual working process, the flexible plate 110 fits the sample to be processed to increase the contact area between the two, limit the polishing work of the shot within the range of the flexible plate 110, and reduce the probability of the shot leaking from between the shot head 100 and the sample to be processed.

[0050] Further, there are two layers of flexible plates 110 on the outside of the shot head 100, which further reduces the probability of the shot leaking from between the shot head 100 and the sample to be processed.

[0051] Preferably, the material used for the flexible plate 110 is polyurethane.

[0052] As Figure 2 shown, a strong magnet 130 is also arranged in the upper part of the shot head housing, and the strong magnet 130 is used to adsorb the steel shots rebounded by the sample to be processed. After the sample to be processed is polished by the steel shots, a large amount of steel shots will rebound back into the shot head 100, causing impact damage to the shot head 100. The existence of the strong magnet 130 can effectively adsorb the rebounded steel shots, reduce the impact on the shot head 100, and extend the service life of the shot head 100.

[0053] Further, a magnetic plate 131 can also be arranged on the lower side of the strong magnet 130 to expand the area for adsorbing the above-mentioned steel shots and further reduce the impact of the steel shots on the shot head 100.

[0054] Optionally, the magnetic plate 131 can be made of Mn13 high manganese steel, and the Mn13 high manganese steel will also be (partially) magnetized into the magnetic plate 131 under the action of the strong magnet 130.

[0055] Preferably, the strong magnet 130 is made of rubidium magnet strong magnetic material.

[0056] As Figure 1 shown, a feed inlet 140 is provided on the back of the shot blasting machine 120, and a discharge outlet 150 is provided at the bottom of the impeller housing. During the actual production process, the shot enters the impeller 120 from the feed inlet 140 and is thrown out by the shot blasting machine 120 to polish the sample to be processed. The shot rebounded from the outer surface of the sample to be processed and the impurities generated after polishing enter the subsequent recovery assembly 600 through the discharge outlet 150.

[0057] Furthermore, a dust removal port 160 is provided at the top of the impeller housing. The dust removal port 160 is externally connected to a dust removal device for absorbing the dust generated by the steel shot impacting the sample to be processed.

[0058] As Figure 1 shown, the pitching assembly 200 includes a base 210, two support frames 220 and two pitching cylinders 230. The two support frames 220 are arranged at intervals. One end of each support frame 220 is fixed to the base 210, and the other end is hinged to the impeller housing; one end of the pitching cylinder 230 is hinged to the base 210, and the other end is hinged to the impeller housing. The impeller 100 is supported on the base 210 through the two support frames 220, and the pitching movement of the impeller 100 is realized by the telescopic movement of the left and right pitching cylinders 230.

[0059] As Figure 1 shown, the slewing assembly 300 includes a slewing support bearing 310 and a slewing cylinder 320. The inner ring of the slewing support bearing 310 is fixedly arranged at the bottom of the base 210, and the output end of the slewing cylinder 320 is hinged to one side of the base 210. The base 210 is driven to reciprocally rotate along the slewing support bearing 210 by the telescopic movement of the slewing cylinder 320, thereby driving the pitching assembly 200 and the impeller 100 on the base 210 to reciprocally rotate along the slewing support bearing 210.

[0060] As Figure 4 shown, the transverse movement assembly 400 includes a transverse movement track 410. The outer ring of the slewing support bearing 310 and the slewing cylinder 230 are arranged on the transverse movement track 410. A rack 420 is provided at the bottom of the transverse movement track 410. The motor drives the transverse movement track 410 to achieve transverse movement through a gear-rack transmission structure. The impeller 100, the pitching assembly 200 and the slewing assembly 300 move radially along the sample to be processed together with the transverse movement track 410, thereby controlling the contact degree between the impeller 100 and the outer surface of the sample to be processed.

[0061] Embodiment 2

[0062] This embodiment provides a shot blasting device, as Figure 4 and Figure 5As shown in the figure, the shot blasting device includes a frame 500, the shot blasting machine described in the first embodiment, a recovery component 600, a screening component 700, and a longitudinal movement track 800. The recovery component 600 is installed on the frame 500 below the shot blasting machine and is used to recover the steel shots and impurities that fall from the discharge port 150 of the shot blasting machine; the screening component 700 is installed on the frame 500, with one end of the screening component 700 communicating with the recovery component 600 and the other end communicating with the shot blasting machine. The steel shots in the recovery component 600 are screened by the screening component 700 and then re-enter the shot blasting machine for repeated use in polishing the sample to be processed. The longitudinal movement track 800 is parallel to the axis of the sample to be processed, and the shot blasting machine, the frame 500, the recovery component 600, and the screening component 700 are integrally slidably arranged on the longitudinal movement track 800. By sliding the whole on the longitudinal movement track 800, the overall shot blasting and polishing of the sample to be processed are realized.

[0063] As Figure 4 and Figure 5 shown in the figure, the recovery component 600 includes a recovery track 620 and a recovery box 630. The recovery track 620 is installed on the frame 500 directly below the discharge port 150 of the shot head 100. The recovery baffle 610 is hingedly arranged at the front end of the recovery track 620, and the recovery box 630 is installed on the frame 500 at the rear end of the recovery track 620. The steel shots and impurities that fall from the discharge port 150 enter the recovery box 630 through the recovery track 620.

[0064] Further, a recovery baffle 610 is hinged at the front end of the recovery track 620, so that the falling steel shots and impurities can completely enter the recovery track 620.

[0065] Further, a spiral conveyor rod is arranged in the recovery track 620, and the rotation of the spiral conveyor rod drives the steel shots and impurities in the recovery track 620 into the recovery box 630.

[0066] As Figure 4 and Figure 5 shown in the figure, the screening component 700 includes an elevator 710, a steel shot box 720, and a separator 730. The recovery box 630, the elevator 710, the steel shot box 720, the separator 730, and the shot head 100 are sequentially connected. The steel shots and impurities in the recovery box 630 are lifted into the steel shot box 720 by the elevator 710. The steel shots in the steel shot box 720 enter the separator 730 for screening and then re-enter the shot head 100 for repeated use in shot blasting and polishing.

[0067] Further, a flow valve is also arranged between the separator 730 and the shot head 100. The flow valve is used to control the flow rate of the steel shots to avoid excessive steel shots entering the shot head 100 and causing blockage and damage to the components inside the shot head 100; in addition, when the shot blasting device stops running, the flow valve needs to be closed to prevent the steel shots from entering the shot head 100.

[0068] Furthermore, a maintenance platform 900 is provided on the shot blasting device for staff to overhaul and maintain the shot blasting device.

[0069] As Figure 6 and Figure 7 shown, in the present utility model, the above-mentioned sample to be processed is a tower pipe 910, which is supported on a roller rack 920, and the tower pipe 910 can rotate on the roller rack 920.

[0070] The working principle of this application is:

[0071] The steps of shot blasting the tower pipe 910 by the shot blasting device are as follows:

[0072] S1. As Figure 1 and Figure 6 shown, adjust the angle of the shot head 100 through the pitching component 200 and the slewing component 300, so that the inclination degree of the working surface of the shot head 100 is consistent with the outer surface of the tower pipe 910;

[0073] S2. Subsequently, adjust the distance between the shot head 100 and the sample to be processed through the transverse movement component 400, so that the working surface of the shot head 100 is as close as possible to the outer surface of the tower pipe 910, and start shot blasting and grinding the tower pipe 910;

[0074] S3. As Figure 6 and Figure 7 shown, the shot blasting device moves from the head end of the tower pipe 910 to the tail end along the longitudinal movement track 800, and completes the grinding of one station of the tower pipe 910;

[0075] S4. The tower pipe 910 rotates to the next station on the roller rack 920, and the shot blasting device moves from the tail end of the tower pipe 910 to the head end along the longitudinal movement track 800, and completes the grinding of the next station of the tower pipe 910; Repeat S3 and S4 until the overall grinding of the tower pipe 910 is completed.

[0076] In the actual production process, when the diameter of the grinding position of the tower pipe 910 changes, readjust the pitching component 200, the slewing component 300 and the transverse movement component 400, so that the working surface of the shot head 100 is as close as possible to the outer surface of the tower pipe 910 to ensure the grinding effect.

[0077] It should be noted that when there is an expression of "connected", "coupled" or "linked" between one element and another element, it may mean that they are directly connected, coupled or linked, but it should be understood that there may be intermediate elements between the two; that is, it covers the positional relationship of direct connection and indirect connection.

[0078] It should be noted that the use of words such as "a" or "an" does not necessarily imply a limitation of quantity. Words such as "comprising" or "including" mean that the elements or items appearing before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items.

[0079] It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, which are for the convenience of describing the present utility model, rather than meaning that the device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0080] The preferred embodiments for implementing the present utility model have been described in detail above, but it should be understood that the functions of these embodiments are only for examples and do not limit the scope, application or construction of the present utility model in any way. The protection scope of the present utility model is defined by the appended claims and their equivalent manners. Those of ordinary skill in the art can make many changes to the foregoing embodiments under the teaching of the present utility model, and these changes all fall within the protection scope of the present utility model.

Claims

1. A shot blasting machine for large pipes, characterized in that: include: A blasting head, which is used to blast steel shots to grind the sample to be processed, and the blasting head includes a blasting head shell; A pitch assembly, which is arranged on the back of the throwing head, and is used to control the pitching action of the throwing head; A slewing assembly, which is arranged at the bottom of the pitching assembly, and is used to control the throwing head and the pitching assembly to jointly complete the slewing action; And a transverse movement component is arranged at the bottom of the rotating component, and the transverse movement component is used to control the radial movement of the polishing head, the pitch component and the rotating component along the sample to be processed.

2. The shot blasting machine for large pipes according to claim 1, characterized in that: The working surface of the polishing head is an arc-shaped surface, and the working surface is used to fit the outer surface of the sample to be processed.

3. The shot blasting machine for large pipes according to claim 2, characterized in that: Two shot blasting machines arranged side by side are arranged in the shell of the blasting head, and the shot blasting ports thereof are facing the outer surface of the sample to be processed.

4. The shot blasting machine for large pipes according to claim 1, characterized in that: A strong magnet is also provided in the upper part of the shell of the grinding head, and the strong magnet is used to absorb the steel sand rebounded by the sample to be processed.

5. The shot blasting machine for large pipes according to claim 3, characterized in that: The back of the shot blasting machine is provided with a feeding port, the bottom of the shot blasting head shell is provided with a discharging port, and the top of the shot blasting head shell is provided with a dust removal port.

6. The shot blasting machine for large pipes according to claim 1, characterized in that: The pitch assembly includes a base, a support frame and a pitch cylinder. One end of the support frame is fixed to the base, and the other end is hinged to the projectile shell; one end of the pitch cylinder is hinged to the base, and the other end is hinged to the projectile shell.

7. The shot blasting machine for large pipes according to claim 6, characterized in that: The rotary assembly includes a rotary support bearing and a rotary cylinder. The inner ring of the rotary support bearing is fixedly arranged at the bottom of the base. The output end of the rotary cylinder is hinged to the base. The rotary cylinder telescopes and drives the base to reciprocate along the rotary support bearing.

8. The shot blasting machine for large pipes according to claim 7, characterized in that: The transverse movement assembly comprises a transverse movement track, the outer ring of the slewing support bearing and the slewing cylinder are arranged on the transverse movement track, a rack is arranged at the bottom of the transverse movement track, and the motor drives the transverse movement track to achieve transverse movement through gear and rack transmission.

9. A shot blasting device, characterized in that: Include: frame; The shot blasting machine for large pipes according to any one of claims 1 to 8, wherein the shot blasting machine is mounted on a frame; A recovery assembly, which is installed on a frame below the shot blasting machine and is used to recover the steel shots and steel sand dropped from the shot blasting machine; A screening component is installed on the frame, one end of the screening component is connected to the recovery component, and the other end is connected to the shot blasting machine, and the steel shots in the recovery component are screened by the screening component and then re-enter the shot blasting machine; And a longitudinal track, which is parallel to the axis of the sample to be processed, and the shot blasting machine, the frame, the recovery component and the screening component are slidably arranged on the longitudinal track.

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