Scraper for overhauling steam turbine

Abstract

The utility model relates to the technical field of steam turbine overhaul tools, and provides a steam turbine overhaul scraper which comprises a hollow grab handle (1), a sliding plate (2) penetrates through the grab handle (1) and slides on the grab handle (1), a driving assembly (3) is arranged between the sliding plate (2) and the grab handle (1), a mounting plate (4) is fixedly connected to the end, located outside the grab handle (1), of the sliding plate (2), and a base (5) is detachably connected to the mounting plate (4). A scraper main body (6) is fixedly connected to the base (5); a cleaning assembly (7) is arranged on the scraper body (6), the cleaning assembly (7) comprises a cleaning suite (71) arranged on the scraper body (6) in a sleeving mode, the side wall of the cleaning suite (71) is fixedly connected with a connecting block (72), the connecting block (72) is fixedly connected with a connecting rod (73), and chippings or powder adhering to the surface of the scraper can be conveniently cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam turbine maintenance tool technical field more specifically, and particularly relates to a scraper for steam turbine maintenance. BACKGROUND

[0002] The steam seal tooth on the partition plate and steam seal body of steam turbine needs to be processed to meet the radial flow gap of steam turbine, and in actual operation, the tooth groove and tooth of the steam seal tooth need to be ground by using a scraper tool. In the process of steam turbine maintenance, bearing bush gold polishing and steam seal tooth scraping are two indispensable works.

[0003] The patent document with the publication number CN215998978U discloses a scraper for steam turbine maintenance, which comprises a handle. An elevating mechanism is arranged in the handle, and an adjusting knob is bonded to one side of the elevating mechanism. A finger groove is bonded to one side of the handle. An installation seat is slidingly connected to the top outer wall of the handle. A cutter body is clamped to the top outer wall of the installation seat, and an arc-shaped maintenance cutter and a maintenance sharp cutter are arranged on both sides of the cutter body. The elevating mechanism comprises a connecting plate, a guide column, an extension cylinder, a spring, a rack plate, a gear, and three or more than three tooth grooves. The spring is welded to one side of the inner wall of the handle. The rack plate is welded to one end of the spring. One end of the rack plate is bonded to one side of the adjusting knob. The rack plate is slidingly connected to the inner walls of both sides of the handle. The scraper for steam turbine maintenance promotes the adjustment of the length of the cutter body, avoids the inconvenience of deepening for the maintenance of complex structures, promotes the replacement and disassembly of different cutter bodies, and promotes different maintenance contents. However, the maintenance scraper in the prior art has the problem that the debris or powder adhering to the surface of the scraper cannot be cleaned in time after the tooth groove is ground, which affects the grinding effect of the next tooth groove. SUMMARY

[0004] The utility model discloses to overcome the above-mentioned situation shortage, aims at providing a kind of scraper for steam turbine maintenance, it is convenient to the cleaning of debris or powder adhering to the surface of scraper.

[0005] A kind of scraper for steam turbine maintenance, including inside hollow handle, the sliding plate is slidably penetrated on the handle, driving assembly is arranged between the sliding plate and the handle, one end of the sliding plate located the outer of the handle is fixedly connected with mounting plate, the mounting plate is detachably connected with base, and base is fixedly connected with scraper main body;Cleaning assembly is provided on the scraper main body, and the cleaning assembly includes the cleaning kit of being set on the scraper main body, the side wall of the cleaning kit is fixedly connected with connecting block, and connecting rod is fixedly connected on the connecting block.

[0006] Further, a plurality of finger grooves are formed on the connecting rod along the length direction thereof at equal intervals.

[0007] Further, the cleaning assembly further comprises a cleaning rubber strip fixed to the cleaning kit, and the cleaning rubber strip is attached to the scraper main body.

[0008] Further, the cleaning rubber strip has a triangular cross section.

[0009] Further, a through groove is formed in the sliding plate, the driving assembly comprises a servo motor installed on the inner wall of the handle, the output end of the servo motor is fixedly connected with a gear, and the inner wall of the through groove is fixedly connected with a toothed plate matched with the gear.

[0010] Further, the handle is further provided with a servo motor controller, an adjusting knob is installed on the handle, and the adjusting knob, the servo motor controller and the servo motor are electrically connected.

[0011] Further, the lower end of the handle is fixedly connected with a battery compartment, and the battery compartment is installed with a battery.

[0012] Further, the battery compartment is clamped with a cover.

[0013] Further, the scraper main body comprises an arc-shaped maintenance part and a sharp maintenance part.

[0014] Further, the outer side wall of the handle is fixedly connected with a rubber sleeve.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] In the utility model, the four fingers (except the thumb) are clamped in the finger groove in the appropriate position by holding the handle, the scraper main body is used to scrape the tooth groove, the telescopic adjustment of the scraper main body can be completed by pressing the adjusting knob with the thumb, and the operation is convenient and fast; when too much powder is adhered to the scraper main body, the powder adhered to the scraper main body is scraped off by repeatedly pulling the connecting rod along the length direction of the handle, so that the operation is convenient and fast, and a cleaning cloth needs not to be additionally carried. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0018] Figure 1 It is the overall structure diagram of a kind of turbine maintenance scraper Figure 1 ;

[0019] Figure 2 It is the overall structure diagram of a kind of turbine maintenance scraper Figure 2 ;

[0020] Figure 3is a schematic view of the cleaning assembly;

[0021] Figure 4 is a structure split view of a scraper for turbine maintenance;

[0022] Figure 5 is a schematic view of the slide plate and driving assembly.

[0023] In the figure: 1, handle; 2, slide plate; 21, through slot; 3, driving assembly; 31, servo motor; 32, gear; 33, toothed plate; 34, servo motor controller; 35, adjusting knob; 4, mounting plate; 5, base; 6, scraper main body; 61, arc-shaped maintenance part; 62, sharp maintenance part; 7, cleaning assembly; 71, cleaning kit; 711, bolt slot; 72, connecting block; 73, connecting rod; 731, finger slot; 74, cleaning rubber strip; 8, battery compartment; 9, battery; 10, compartment cover; 11, bolt; 12, rubber sleeve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. DETAILED EMBODIMENTS

[0026] As shown in Figures 1-5 A scraper for turbine maintenance comprises a handle 1, the handle 1 is hollow inside, a slide plate 2 is slidably penetrated through the handle 1, a driving assembly 3 is arranged between the slide plate 2 and the handle 1 to drive the sliding of the slide plate 2, a mounting plate 4 is fixedly connected to one end of the slide plate 2 outside the handle 1, a base 5 is detachably connected to the mounting plate 4, a scraper main body 6 is fixedly connected to the base 5, the slide plate 2 is driven to slide by the driving assembly 3 to realize the extension and retraction of the scraper main body 6, thereby avoiding the problem that the handle or hand cannot be inserted into the maintenance part with a relatively complex structure; a cleaning assembly 7 is arranged on the scraper main body 6, and the cleaning assembly 7 is used to clean the scraper main body 6.

[0027] As shown in Figures 1-5As shown, the cleaning assembly 7 comprises a cleaning sleeve 71 sleeved on the scraper body 6, the side wall of the cleaning sleeve 71 is fixedly connected with a connecting block 72, and the connecting block 72 is fixedly connected with a connecting rod 73 arranged along the length direction of the handle 1. When too much powder is adhered on the scraper body 6, repeatedly pulling the connecting rod 73 along the length direction of the handle 1 can make the cleaning sleeve 71 scrape off the powder adhered on the scraper body 6, which is convenient and fast, and no additional cleaning cloth is needed. During the process of scraping the tooth groove of the steam seal tooth, holding the connecting rod 73 while holding the handle 1 can avoid the cleaning assembly 7 from moving around.

[0028] As shown in Figures 1-5 In order to facilitate the staff to hold the connecting rod 73, a plurality of finger grooves 731 are evenly arranged on the connecting rod 73 along the length direction of the connecting rod 73, so that the four fingers (except the thumb) of the staff can be clamped in the appropriate finger groove 731.

[0029] As shown in Figures 1-5 The cleaning assembly 7 further comprises a cleaning rubber strip 74 fixedly connected to the cleaning sleeve 71, the cleaning rubber strip 74 is attached to the scraper body 6, and the cross section of the cleaning rubber strip 74 is triangular, the sharp part of the triangle is attached to the scraper body 6, which improves the efficiency of scraping off the adhered powder.

[0030] As shown in Figures 1-5 The sliding plate 2 is provided with a through groove 21; the driving assembly 3 comprises a servo motor 31 installed in the inner wall of the handle 1, the output end of the servo motor 31 is fixedly connected with a gear 32, and further comprises a toothed plate 33 fixedly connected to the inner wall of the through groove 21, and the gear 32 is engaged with the toothed plate 33. Through the output of the servo motor 31, the sliding plate 2 is limited by the sliding of the handle 1, the gear 32 and the toothed plate 33 are engaged and matched to make the sliding plate 2 realize sliding expansion and contraction, and then the scraper body 6 realizes sliding expansion and contraction.

[0031] As shown in Figures 1-5 The handle 1 is further provided with a servo motor controller 34, and the handle 1 is provided with an adjusting knob 35, and the adjusting knob 35, the servo motor controller 34 and the servo motor 31 are electrically connected through wires. The staff can complete the expansion and contraction adjustment of the scraper body 6 by pressing the adjusting knob 35, which is convenient and fast.

[0032] As shown in Figures 1-5 The lower end of the handle 1 is fixedly connected with a battery compartment 8, the battery compartment 8 is installed with a battery 9, and the battery compartment 8 is clamped with a compartment cover 10. The battery 9 is arranged to supply power to the power equipment of the device.

[0033] As shown in Figures 1-5As shown, the mounting plate 4 and the base 5 are connected by the bolt 11, facilitating replacement of the scraper main body 6; the cleaning kit 71 is provided with a bolt groove 711 on the side close to the base 5, which is adapted to the bolt 11, and the bolt groove 711 helps the cleaning kit 71 to be attached to the base 5.

[0034] As shown, the scraper main body 6 comprises an arc-shaped maintenance part 61 and a sharp maintenance part 62, facilitating coping with different use requirements. Figures 1-5

[0035] As shown, the outer side wall of the handle 1 is fixedly connected with the rubber sleeve 12, and the arc-shaped rubber sleeve 12 is more convenient for the staff to hold the handle 1. Figures 1-5

[0036] The working principle of the scraper for turbine maintenance in the embodiment is as follows: in use, the handle 1 is held and the four fingers (except the thumb) are clamped in the finger grooves 731, the scraper main body 6 is used to scrape the tooth groove, the telescopic adjustment of the scraper main body 6 is completed by pressing the adjusting knob 35 with the thumb, which is convenient and fast; when too much powder is adhered to the scraper main body 6, the cleaning kit 71 is used to scrape the powder adhered to the scraper main body 6 by repeatedly pulling the connecting rod 73 along the length direction of the handle 1, and the process is convenient and fast, and a cleaning cloth is not needed to be additionally carried.

[0037] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.​​

Claims

1. A scraper for steam turbine maintenance, characterized by: The invention comprises a handle (1) with a hollow interior, a slide plate (2) passing through and sliding on the handle (1), a driving assembly (3) being provided between the slide plate (2) and the handle (1), a mounting plate (4) being fixedly connected to one end of the slide plate (2) outside the handle (1), a base (5) being detachably connected to the mounting plate (4), a scraper body (6) being fixedly connected to the base (5); a cleaning assembly (7) being provided on the scraper body (6), the cleaning assembly (7) comprising a cleaning kit (71) sleeved on the scraper body (6), a connecting block (72) being fixedly connected to the side wall of the cleaning kit (71), and a connecting rod (73) being fixedly connected to the connecting block (72).

2. The scraper for steam turbine maintenance according to claim 1, characterized in that: The connecting rod (73) is provided with a plurality of finger grooves (731) at equal intervals along its length direction.

3. The scraper for steam turbine maintenance according to claim 2, characterized in that: The cleaning assembly (7) further comprises a cleaning adhesive strip (74) fixedly connected to the cleaning kit (71), and the cleaning adhesive strip (74) is attached to the scraper body (6).

4. The scraper for steam turbine maintenance according to claim 3, characterized in that: The cross section of the cleaning rubber strip (74) is triangular.

5. The scraper for steam turbine maintenance according to claim 3, characterized in that: The slide plate (2) is provided with a through slot (21); the drive assembly (3) comprises a servo motor (31) mounted on the inner wall of the handle (1); the output end of the servo motor (31) is fixedly connected to a gear (32); and the inner wall of the through slot (21) is fixedly connected to a toothed plate (33) meshing with the gear (32).

6. The scraper for steam turbine maintenance according to claim 5, characterized in that: The handle (1) is further provided with a servo motor controller (34). An adjusting button (35) is mounted on the handle (1). The adjusting button (35), the servo motor controller (34) and the servo motor (31) are electrically connected.

7. The scraper for steam turbine maintenance according to claim 6, characterized in that: A battery compartment (8) is fixedly connected to the lower end of the handle (1), and a battery (9) is installed in the battery compartment (8).

8. The scraper for steam turbine maintenance according to claim 7, characterized in that: A compartment cover (10) is clamped on the battery compartment (8).

9. The scraper for steam turbine maintenance according to claim 1, characterized in that: The scraper body (6) comprises an arc-shaped inspection portion (61) and a sharp inspection portion (62).

10. The scraper for steam turbine maintenance according to claim 1, characterized in that: A rubber sleeve (12) is fixedly connected to the outer side wall of the handle (1).

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