Adjustable sand blasting cage for turbine sand blasting

Abstract

The invention provides an adjustable sand blasting cage for turbine sand blasting, which comprises two clamp discs, a plurality of dismounting rods, a plurality of adjusting rods, a plurality of nuts and a locking structure, the dismounting rods and the adjusting rods are connected between the two clamp discs through the nuts and are arranged along the circumferential direction of the clamp discs to form a cage type structure, and the locking structure is arranged on the dismounting rods and the adjusting rods. The upper half portion of the clamp disc is an opening adjusting portion and provided with a plurality of open grooves, the open grooves are opened in the circumferential face of the clamp disc, the two ends of the dismounting rod are detachably installed in the open grooves, the locking structure comprises a clamping spring, the two ends of the clamping spring are bent towards the same side, paired clamping grooves are formed in the circumferential face of the clamp disc, and the clamping grooves are detachably installed in the clamping spring. The bent parts at the two ends of the clamping spring are clamped in the paired clamping grooves, the two clamping grooves are located in the two sides of the open groove, and the disassembling rod is limited in the open groove through the clamping spring. The problem that in the prior art, a connecting rod falls out of an open groove of a clamp disc is solved.

Description

Technical Field

[0001] This invention relates to the field of turbine blasting technology, and in particular to an adjustable blasting cage for turbine blasting. Background Technology

[0002] During turbine production, surface pretreatment is performed, including sandblasting. The turbine to be sandblasted is placed in a cage, which rotates within the sandblasting chamber to sandblast the turbine from multiple angles. The cage includes two clamping discs, several connecting rods, and several nuts. The two clamping discs have several slots arranged around their circumference. The two ends of the connecting rods are placed in the slots of the two clamping discs, and each end of the connecting rod is threaded with two nuts. The two nuts are located on opposite sides of the clamping discs, clamping them together and thus fixing the connecting rods to the clamping discs. During the sandblasting process, some nuts may loosen, causing the connecting rods to fall out of the slots of the clamping discs, posing a potential production hazard. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide an adjustable sandblasting cage for turbine sandblasting, which solves the problem of the connecting rod falling out of the opening slot of the clamping plate in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention provides an adjustable sandblasting cage for turbine sandblasting, comprising: two clamping discs, multiple disassembly rods, multiple adjusting rods, several nuts, and a locking structure. The disassembly rods and adjusting rods are connected between the two clamping discs by nuts and are arranged along the circumferential direction of the clamping discs to form a cage structure. The upper half of the clamping disc is an opening adjustment part with multiple opening slots. The opening slots are open on the circumferential surface of the clamping disc. The lower half of the clamping disc is an adjustment part with multiple radial through holes. The two ends of the disassembly rods are detachably installed in the opening slots, and the two ends of the adjusting rods are adjustablely installed in the radial through holes. The locking structure includes a retaining spring with both ends bent to the same side. A pair of retaining slots are formed on the circumferential surface of the clamping disc. The bent portions at both ends of the retaining spring are engaged in the pair of retaining slots. The two retaining slots are located on both sides of the opening slot. The retaining spring limits the disassembly rod in the opening slot.

[0005] The locking structure further includes a locking block, which is installed at the opening of the slot. The locking block limits the disassembly rod in the slot, and the retaining spring limits the locking block in the slot.

[0006] Two opening slots are provided between two adjacent card slots. The two opening slots intersect at the opening and form a V-shape. The card block is V-shaped and is engaged in the two opening slots.

[0007] The snap ring has snap-fit ​​ends at both ends, the snap-fit ​​ends are L-shaped, the snap-fit ​​grooves are L-shaped, and the snap-fit ​​ends of the snap ring are snapped into the paired snap-fit ​​grooves.

[0008] The main body of the retaining ring is C-shaped, and the main body of the retaining ring matches the circumferential arc surface of the clamping disc.

[0009] A first limiting groove is formed on the circumferential surface of the clamping disc along the circumferential direction, and a second limiting groove is formed on the outer wall of the clamping block. The retaining spring is disposed in the first limiting groove and the second limiting groove.

[0010] The first limiting groove and the second limiting groove are arc-shaped grooves with the same radius.

[0011] The radial through holes are circular and evenly arranged on circumferences of different radii; or, the radial through holes are elongated and arranged radially along the radial direction. The lower half of the clamping disk has 3-5 radial through holes evenly distributed, with the center of the clamping disk as the center, and the included angle between two adjacent radial through holes is 30°-90°.

[0012] The ends of the disassembly rod and the adjustment rod are threaded and fitted with two nuts. The two nuts are located on both sides of the clamping plate and clamp the clamping plate. A rotating shaft is installed at the center of the outer end face of the two clamping plates. The rotating shaft is frustum-shaped and the large diameter end of the rotating shaft is located on the outer side.

[0013] The adjustable sandblasting cage of the present invention adopts an openable cage structure, which facilitates the placement of turbines into the sandblasting cage for batch turbine sandblasting, thereby improving production efficiency. The adjustable sandblasting cage of the present invention is suitable for turbines of various sizes and specifications, and has a wide range of applications. When the nut at the end of the disassembly rod is loosened during the sandblasting process, the locking structure prevents the disassembly rod from falling out of the opening slot of the clamping plate, and the locking structure limits the disassembly rod in the opening slot of the clamping plate. Attached Figure Description

[0014] Figure 1 This is a front view of an adjustable sandblasting cage for turbine sandblasting according to Embodiment 1 of the present invention.

[0015] Figure 2 This is a left view of an adjustable sandblasting cage for turbine sandblasting according to Embodiment 1 of the present invention.

[0016] Figure 3This is a schematic diagram of the clamping disk and locking structure according to Embodiment 1 of the present invention.

[0017] Figure 4 for Figure 3 The left view.

[0018] Figure 5 for Figure 3 A magnified view of a portion of point A in the middle.

[0019] Figure 6 This is a schematic diagram of the rotation axis.

[0020] Figure 7 This is a schematic diagram of the clamping disk and locking structure in Embodiment 2 of the present invention.

[0021] Figure 8 This is a schematic diagram of the clamping disk and locking structure in Embodiment 3 of the present invention.

[0022] Figure 9 This is a schematic diagram of the clamping disc in Embodiment 4 of the present invention.

[0023] In the picture: 1. Fixture plate; 11. Opening slot; 12. Radial through hole; 13. Slot; 14. First limiting slot; 15. Round hole; 2. Disassembly rod; 3. Adjusting rod; 4 nuts; 5. Locking structure; 51. Snap ring; 52. Snap block; 511. Snap-fit ​​end; 521. Second limiting groove; 6. Rotary axis; 61. Connecting axis. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example 1 This invention provides an adjustable blasting cage for turbine blasting, such as... Figure 1-2 It includes: two clamping discs 1, four disassembly rods 2, three adjusting rods 3, several nuts 4, and two sets of locking structures 5. The four disassembly rods 2 are connected between the two clamping discs 1 by nuts 4, and the three adjusting rods 3 are connected between the two clamping discs 1 by nuts 4. The disassembly rods 2 and the adjusting rods 3 are parallel to each other and arranged along the circumference of the clamping discs 1 to form an openable cage structure.

[0028] Combination Figure 2 The upper half of the clamping plate 1 is an opening adjustment part. Four opening slots 11 are opened in the upper half of the clamping plate 1. The opening slots 11 are open on the circumferential surface of the clamping plate 1. The two ends of the disassembly rod 2 can be detachably installed in the opening slots 11 of the clamping plate 1. The lower half of the clamping plate 1 is an adjustment part. Three radial through holes 12 are opened in the lower half of the clamping plate 1. The two ends of the adjustment rod 3 can be adjusted and installed in the radial through holes 12.

[0029] like Figure 2-3 The locking structure 5 includes a retaining spring 51 and a retaining block 52. The retaining block 52 is V-shaped. Two adjacent slots 11 on the clamping disc 1 intersect at their openings, forming a V-shape. The V-shaped retaining block 52 is engaged in the two slots 11, restricting the disassembly rod 2 within the slots 11. A pair of retaining slots 13 are formed on the circumferential surface of the clamping disc 1. The two pairs of retaining slots 13 are located on either side of the two adjacent slots 11, symmetrically arranged, and L-shaped. Figure 5 Both ends of the retaining ring 51 are bent to the same side, and both ends of the retaining ring 51 are provided with locking ends 511. The locking ends 511 are L-shaped, and the locking ends 511 at both ends of the retaining ring 51 are engaged in paired locking slots 13, such as... Figure 2 The retaining ring 51 is located outside the retaining block 52, and the retaining ring 51 limits the retaining block 52 in two adjacent opening slots 11.

[0030] like Figure 2-4The main body of the retaining spring 51 is C-shaped and matches the circumferential arc surface of the clamping disk 1. A first limiting groove 14 is formed on the circumferential surface of the clamping disk 1 along the circumferential direction. A second limiting groove 521 is formed on the outer wall of the retaining block 52. The first limiting groove 14 and the second limiting groove 521 are arc-shaped grooves with the same radius. The retaining spring 51 is set in the first limiting groove 14 and the second limiting groove 521, and the retaining spring 51 is limited and positioned in the first limiting groove 14 and the second limiting groove 521 to prevent the retaining spring 51 from falling out. Figure 4 The retaining ring 51 also limits the retaining block 52 on the clamping plate 1, and at the same time prevents the retaining block 52 from falling out of the opening slot 11.

[0031] Four opening slots 11 are set, forming two groups, and the two groups are set symmetrically.

[0032] The lower half of the clamping disk 1 has three radial through holes 12 evenly distributed. The radial through holes 12 are elongated and arranged radially along the radial direction of the clamping disk 1. With the center of the clamping disk 1 as the center, the included angle between two adjacent radial through holes 12 is 70°. The adjusting rod 3 can be moved to adjust the position along the shape of the radial through holes 12.

[0033] The ends of the disassembly rod 2 and the adjustment rod 3 are threaded and fitted with two nuts 4. The two nuts 4 are located on both sides of the clamping plate 1 and clamp the clamping plate 1 to fix it.

[0034] like Figure 1-6 A rotating shaft 6, shaped like a frustum, is mounted at the center of the outer end face of each of the two clamping discs 1. The upper bottom surface of the frustum is connected to the clamping disc 1, and a connecting shaft 61, cylindrical in shape, is provided on the upper bottom surface of the frustum. A circular hole 15 is formed in the center of the clamping disc 1, and the connecting shaft 61 is fixedly installed in the circular hole 15. The adjustable sandblasting cage of the present invention for turbine sandblasting is placed in a sandblasting device. The sandblasting device has two sets of rollers, each of which drives the rotating shaft 6 mounted at the center of the outer end face of the clamping disc 1 to rotate, thereby driving the entire invention to rotate.

[0035] The working method of this invention: S1. The two ends of the adjusting rod 3 each pass through a radial through hole 12 of the clamping disk 1. The adjusting rod 3 moves and adjusts its position along the shape of the radial through hole 12 of the clamping disk 1. The fixed position of the adjusting rod 3 in the radial through hole 12 is initially determined according to the size of the turbine. When the turbine is large, the fixed position of the adjusting rod 3 in the radial through hole 12 is far away from the center of the clamping disk 1. When the turbine is small, the fixed position of the adjusting rod 3 in the radial through hole 12 is close to the center of the clamping disk 1.

[0036] In step S1, the adjusting rods 3 are parallel to each other, and the two clamping disks 1 are parallel to each other; the adjusting rods 3 can be moved to adjust their positions along the shape of the radial through hole 12 of the clamping disk 1.

[0037] In step S1, first nuts are first rotated and installed on both ends of the adjusting rod 3. The two ends of the adjusting rod 3 pass through the radial through hole 12 of the clamping disk 1. At this time, the first nuts will abut against the clamping disk 1 and are located on the inner side of the clamping disk 1. Second nuts are rotated on both ends of the adjusting rod 3 and are located on the outer side of the clamping disk 1. At this time, rotating the first nuts and the second nuts clamps the clamping disk 1, so that the adjusting rod 3 is fixedly connected to the clamping disk 1.

[0038] S2, keep the adjusting rod 3 as follows: Figure 1 With the turbine in a horizontal position, place it linearly on the adjusting rod 3 at a preset angle.

[0039] S3. Connect the four disassembly rods between the two clamping discs and adjust the position of the disassembly rods in the opening slots so that the disassembly rods can fit tightly against the upper edge of the turbine, thereby fixing the turbine in the space constructed by the adjusting rods, the disassembly rods and the clamping discs.

[0040] In step S3, a third nut is first rotated and installed on both ends of the disassembly rod 2. The end of the disassembly rod 2 is placed in the opening slot 11 of the clamping plate 1. At this time, the third nut is located inside the clamping plate 1. The third nut is rotated so that it abuts against the clamping plate 1, and the disassembly rod 2 is initially fixed to the clamping plate 1.

[0041] S4. Provide a retaining ring 51 and a retaining block 52. Select a suitable retaining block 52 and engage it in the opening slot 11. The retaining block 52 abuts against the disassembly rod 2. Adjust the retaining block 52 so that the second limiting groove 521 on the outer wall of the retaining block 52 is on the same arc as the first limiting groove 14 of the clamping plate 1.

[0042] Rotate the fourth nut on both ends of the disassembly rod 2. The fourth nut is located on the outside of the clamping plate 1. At this time, rotate the third nut and the fourth nut to clamp the clamping plate 1, so that the disassembly rod 2 and the clamping plate 1 are further fixedly connected.

[0043] The snap-fit ​​ends 511 of the snap ring 51 are snapped into the snap-fit ​​groove 13. The two ends of the snap ring 51 are connected to the clamping disc 1. The snap ring 51 limits the snap block 52 in the opening groove 11. Figure 4 The main body of the retaining ring 51 is located in the first limiting groove 14 and the second limiting groove 521, such as Figure 4 In this state, the retaining ring 51 is limited in the first limiting groove 14 of the clamping plate 1, and the retaining ring 51 cannot move left or right and fall off. The retaining ring 51 is also stuck in the second limiting groove 521 of the clamping block 52, and the clamping block 52 cannot move left or right and fall off. The clamping block 52 is limited in the opening groove 11 of the clamping plate 1 by the retaining ring 51.

[0044] S5. Fix the rotating shaft 6 at the round hole 15 on the side of the clamping plate 1.

[0045] S6. The adjustable sandblasting cage of the present invention is placed in the sandblasting equipment and rotated to perform sandblasting treatment.

[0046] S7. After the sandblasting process is completed, remove the adjustable sandblasting cage of the present invention from the sandblasting equipment, remove the retaining spring 51 and retaining block 52, remove the disassembly rod 2 from the opening slot 11, and take out the sandblasted turbine.

[0047] In step S7, when removing the retaining ring 51, a tool is used to pry the retaining end 511 of the retaining ring 51 so that the retaining end 511 is disengaged from the retaining groove 13.

[0048] Example 2 An adjustable blasting cage for turbine blasting, employing the adjustable blasting cage for turbine blasting as described in Embodiment 1, wherein the clamping disc 1 and locking structure 5 are structured as follows: Figure 7 As shown, the main body of the locking structure 5's retaining spring 51 is C-shaped, and the two ends of the retaining spring 51 are provided with long strip-shaped locking ends 511. Pairs of locking grooves 13 are opened on the circumferential surface of the clamping disk 1. The locking grooves 13 are long strip-shaped, and the locking ends 511 are locked in the locking grooves 13. The retaining spring 51 is locked on the circumferential wall of the clamping disk 1 as a whole. The retaining spring 51 limits the disassembly rod 2 in the opening groove 11 of the clamping disk 1.

[0049] Example 3 An adjustable sandblasting cage for turbine sandblasting is provided, which adopts the adjustable sandblasting cage for turbine sandblasting as in Embodiment 2, wherein a locking block 52 is engaged in each opening slot 11, a retaining spring 51 limits the locking block 52 in the opening slot 11, and the locking block 52 limits the disassembly rod 2 in the opening slot 11.

[0050] Example 4 An adjustable blasting cage for turbine blasting, employing the adjustable blasting cage for turbine blasting as described in Embodiment 1, wherein the clamping disk 1 has the following structure: Figure 9 As shown, the upper half of the clamping disk 1 is an opening and adjustment section, with four opening slots 11 and four retaining slots 13. A circular hole 15 is formed in the center of the clamping disk 1. The lower half of the clamping disk 1 is an adjustment section, with several radial through holes 12 formed in the lower half. The radial through holes 12 are circular and are evenly arranged on three circles of different radii with the center of the clamping disk 1 as the center. Figure 9 Three radial through holes 12 are evenly distributed on the smallest radius, three radial through holes 12 are evenly distributed on the largest radius, and four radial through holes 12 are evenly distributed on the middle radius.

[0051] In use, depending on the size of the turbine, select the radial through hole 12 of the same radius to install the adjusting rod 3, place the turbine, then install the adjusting and disassembling rod 2, and then install the locking structure to limit the disassembling rod 2 in the opening slot 11 of the clamping plate 1.

[0052] In summary, the adjustable sandblasting cage of the present invention adopts an openable cage structure, which facilitates the placement of turbines into the sandblasting cage for batch turbine sandblasting, thereby improving production efficiency. The adjustable sandblasting cage of the present invention is suitable for turbines of various sizes and specifications, and has a wide range of applications. When the nut at the end of the disassembly rod is loosened during the sandblasting process, the locking structure prevents the disassembly rod from falling out of the opening slot of the clamping plate, and the locking structure limits the disassembly rod in the opening slot of the clamping plate.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An adjustable blasting cage for turbine blasting, characterized in that, include: Two clamping discs (1), multiple disassembly rods (2), multiple adjusting rods (3), several nuts (4), and a locking structure (5). The disassembly rods (2) and adjusting rods (3) are connected between the two clamping discs (1) by nuts (4) and are arranged along the circumference of the clamping discs (1) to form a cage structure. The upper half of the clamping disc (1) is an opening adjustment part and has multiple opening slots (11). The opening slots (11) are open on the circumference of the clamping disc (1). The lower half of the clamping disc (1) is an adjustment part and has multiple radial through holes (12). The two ends of the disassembly rods (2) are detachably installed in the opening slots (11), and the two ends of the adjusting rods (3) are adjustablely installed in the radial through holes (12). The locking structure (5) includes a retaining spring (51), with both ends of the retaining spring (51) bent to the same side. A pair of retaining grooves (13) are opened on the circumferential surface of the clamping disc (1). The bent portions at both ends of the retaining spring (51) are engaged in the pair of retaining grooves (13). The two retaining grooves (13) are located on both sides of the opening groove (11). The retaining spring (51) limits the disassembly rod (2) in the opening groove (11).

2. The adjustable blasting cage for turbine blasting according to claim 1, characterized in that, The locking structure (5) further includes a locking block (52), which is installed at the opening of the opening slot (11). The locking block (52) limits the disassembly rod (2) in the opening slot (11), and the retaining spring (51) limits the locking block (52) in the opening slot (11).

3. The adjustable blasting cage for turbine blasting according to claim 2, characterized in that, Two opening slots (11) are provided between two adjacent slots (13). The two opening slots (11) intersect at the opening and form a V-shape. The card block (52) is V-shaped and is engaged in the two opening slots (11).

4. The adjustable blasting cage for turbine blasting according to claim 1, characterized in that, The snap ring (51) has snap-fit ​​ends (511) at both ends. The snap-fit ​​ends (511) are L-shaped. The slots (13) are L-shaped. The snap-fit ​​ends (511) of the snap ring (51) are snapped into the paired slots (13).

5. The adjustable blasting cage for turbine blasting according to claim 1, characterized in that, The main body of the snap ring (51) is C-shaped, and the main body of the snap ring (51) matches the circumferential arc surface of the clamping disk (1).

6. The adjustable blasting cage for turbine blasting according to claim 2, characterized in that, The clamping disc (1) has a first limiting groove (14) along the circumferential direction on its circumferential surface, and a second limiting groove (521) is provided on the outer wall of the clamping block (52). The retaining spring (51) is disposed in the first limiting groove (14) and the second limiting groove (521).

7. The adjustable blasting cage for turbine blasting according to claim 6, characterized in that, The first limiting groove (14) and the second limiting groove (521) are arc-shaped grooves with the same radius.

8. The adjustable blasting cage for turbine blasting according to claim 1, characterized in that, The radial through holes (12) are circular and are evenly arranged on circumferences of different radii; or, the radial through holes (12) are elongated and are arranged radially along the radial direction.

9. The adjustable blasting cage for turbine blasting according to claim 8, characterized in that, The lower half of the clamping disk (1) has 3-5 radial through holes (12) evenly distributed, with the center of the clamping disk (1) as the center, and the included angle between two adjacent radial through holes (12) is 30°-90°.

10. The adjustable blasting cage for turbine blasting according to claim 1, characterized in that, The ends of the disassembly rod (2) and the adjustment rod (3) are threaded and two nuts (4) are threadedly installed. The two nuts (4) are located on both sides of the clamping plate (1) and clamp the clamping plate (1) to fix it. A rotating shaft (6) is installed at the center of the outer end face of the two clamping plates (1). The rotating shaft (6) is in the shape of a frustum, and the large diameter end of the rotating shaft (6) is located on the outside.

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