Water pump filler cutting tool

Abstract

The utility model discloses a water pump packing cutting tool which comprises a support body and a limiting frame, the limiting frame is fixedly arranged on the support body, a hollow cavity is formed in the limiting frame in the axial direction, and the cross section of the hollow cavity corresponds to the cross section of packing; the limiting frame is provided with a first cut-off chute and a second cut-off chute, the inclination direction of the first cut-off chute is consistent with that of the second cut-off chute, and the inclination angle of the first cut-off chute and the inclination angle of the second cut-off chute are the same as the inclination angle of an end notch of a finished packing product. And the spacing distance between the first cut-off chute and the second cut-off chute along the limiting frame is equal to the length of a finished product of the filler. According to the water pump filler cutting tool, the filler notch face is smoother, the notch angle is more accurate, the cutting efficiency and the cutting quality are improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary processing of a water pump sealing structure, in particular to a water pump filler cutting tool. Background Art

[0002] The main function of important plant water pumps in nuclear power plants is to transfer the liquid heat transmitted from the equipment cooling water system to seawater, or to extract seawater to cool the equipment. As the final heat sink of the nuclear island, its importance is self-evident.

[0003] Important plant water pumps are single-stage, single-suction vertical centrifugal pumps. The pump and motor are installed on the foundation separately, and the pump shaft seal is generally sealed with a packing seal device, such as Figure 1 As shown, the packing sealing device includes a packing ring 01, several rings of packing 02 and a packing gland 03. The packing ring 01 is arranged at the lower part of the packing cavity 06, and several packings 02 are arranged at the upper part of the packing ring 01. The packing gland 03 is fixed to the top surface of the packing cavity 06 by a clamping stud. The packing ring 01, the packing 02 and the packing gland 03 are sleeved on the shaft sleeve 04, and the shaft sleeve 04 is sleeved on the pump shaft 05. The production and installation of the packing seal is an important link to ensure the availability of the equipment when the equipment is dismantled and repaired. During the maintenance process, it was found that the uneven cut and angle deviation of the packing 02 easily caused the water supply of the packing to be interrupted, which in turn caused the packing 02 to be dry-ground, increased the wear on the shaft sleeve 04, and affected the sealing performance. In the prior art, the cut of the packing 02 is cut by workers based on experience, and it is difficult to ensure the accuracy of the angle of the cut.

[0004] In summary, how to provide an auxiliary tool that can achieve a smooth incision at the end of the filler and an accurate incision angle has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the utility model provides a water pump filler cutting tool, which makes the cut surface of the end of the filler smoother and the cut angle more accurate, improves the cutting efficiency and cutting quality, and improves the production efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water pump filler cutting tool comprises a bracket body and a limit frame, wherein the limit frame is fixedly arranged on the bracket body, and a hollow chamber is axially arranged on the limit frame, and the cross section of the hollow chamber is arranged corresponding to the cross section of the filler; the limit frame is provided with a first truncated bevel and a second truncated bevel, the inclination direction of the first truncated bevel and the second truncated bevel are consistent, the inclination angles of the first truncated bevel and the second truncated bevel are the same as the inclination angle of the end cut of the finished filler, and the spacing distance between the first truncated bevel and the second truncated bevel along the limit frame is the same as the length of the finished filler.

[0008] Optionally, the limiting frame includes an inlet auxiliary pipe section, a main pipe section and an outlet auxiliary pipe section which are arranged in sequence, the first truncation chute is arranged between the inlet auxiliary pipe section and the main pipe section, and the second truncation chute is arranged between the main pipe section and the outlet auxiliary pipe section.

[0009] Optionally, the limiting frame is an annular frame, and a feeding gap is provided on the limiting frame. The feeding gap is provided between the inlet auxiliary pipe section and the outlet auxiliary pipe section. The limiting frame is located at the ends on both sides of the feeding gap, one of which is the filling inlet and the other is the filling outlet.

[0010] Optionally, the limiting frame is a linear frame, and two ends of the limiting frame, one is a filler inlet, and the other is a filler outlet.

[0011] Optionally, the bracket body includes a base frame and a support column, one end of the support column is fixedly connected to the base frame, and the other end of the support column is fixedly connected to the limit frame.

[0012] Optionally, the base frame and the support are welded, and the support is welded to the limiting frame.

[0013] Optionally, at least one of the support pillars is fixedly disposed at the bottom end of any one of the inlet auxiliary pipe section, the main pipe section and the outlet auxiliary pipe section.

[0014] Optionally, the cross-section of the hollow chamber is rectangular, circular or square.

[0015] Optionally, the first truncation bevel groove and the second truncation bevel groove have the same groove width, and the groove width of the first truncation bevel groove and the second truncation bevel groove is greater than the thickness of the cutting blade.

[0016] Optionally, the width of the feed gap is greater than the width of the first truncation chute.

[0017] It can be seen from the above technical scheme that the water pump filler cutting tool provided by the utility model limits the raw material of the filler by setting a limit frame with a hollow chamber along the axial direction, and the first truncation bevel groove and the second truncation bevel groove are provided on the limit frame for guiding the cutting knife during cutting, so that the cut surfaces at both ends of the filler are smoother and the cut angle is more accurate, which reduces the experience requirements for the cutting workers, improves the cutting efficiency and cutting quality, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a packing sealing device in the prior art;

[0020] Figure 2 A schematic diagram of the structure of a water pump filler cutting tool provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of the limit frame provided in the embodiment of the utility model;

[0022] Figure 4 A schematic cross-sectional view of a water pump filler cutting tool provided in an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the direction of inserting and removing fillers when the water pump filler cutting tool provided by the embodiment of the utility model is used;

[0024] Figure 6 A schematic structural diagram of a filler obtained by cutting using the water pump filler cutting tool provided in an embodiment of the utility model at an angle;

[0025] Figure 7 A schematic structural diagram of a filler obtained by cutting using the water pump filler cutting tool provided in an embodiment of the utility model at another angle;

[0026] Figure 8 This is a schematic structural diagram of an angle in which the filler after cutting is bent into an arc-shaped structure required for installation according to an embodiment of the utility model;

[0027] Fig. 9 This is a structural schematic diagram of another angle of the embodiment of the utility model in which the cut filler is bent into an arc-shaped structure required for installation;

[0028] Fig.10 A schematic structural diagram of a water pump filler cutting tool at one angle provided by another embodiment of the utility model;

[0029] Fig.11 for Fig.10 A schematic structural diagram of a water pump filler cutting tool from another angle provided in the embodiment.

[0030] in:

[0031] 01. Packing ring; 02. Packing; 03. Packing gland; 04. Shaft sleeve; 05. Pump shaft; 06. Packing cavity;

[0032] 1. Limiting frame; 101. Inlet auxiliary pipe section; 102. Main pipe section; 103. Outlet auxiliary pipe section; 104. First truncation chute; 105. Second truncation chute; 106. Feeding gap; 107. Hollow chamber; 2. Bracket body; 201. Base frame; 202. Pillar; 3. Filler. DETAILED DESCRIPTION

[0033] The utility model discloses a water pump filler cutting tool, which makes the cut surfaces at both ends of the filler smoother and the cut angle more accurate, thereby improving the cutting efficiency and cutting quality and improving the production efficiency.

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figures 2 to 11 The utility model of the water pump filler cutting tool comprises a bracket body 2 and a limiting frame 1. The limiting frame 1 is fixedly arranged on the bracket body 2, and a hollow chamber 107 is arranged on the limiting frame 1 along the axial direction. The cross section of the hollow chamber 107 is arranged corresponding to the cross section of the filler 3, so that the raw material of the filler 3 is convenient to penetrate into the hollow chamber 107, and it is convenient to limit the raw material of the inserted filler 3. The limiting frame 1 is provided with a first truncated chute 104 and a second truncated chute 105, and the first truncated chute 104 and the second truncated chute 105 have the same inclination angle, and the inclination angle A of the two is the same as the inclination angle of the end cut of the final filler 3 product. Among them, the position of the first truncated chute 104 corresponds to one end of the finished filler 3, and the position of the second truncated chute 105 corresponds to the other end of the finished filler 3, so that the spacing distance between the first truncated chute 104 and the second truncated chute 105 along the limiting frame 1 is the same as the length of the final finished filler 3.

[0036] The first truncated slant groove 104 and the second truncated slant groove 105 are through grooves cut off on the limiting frame 1, and the first truncated slant groove 104 and the second truncated slant groove 105 are used to limit the cutting knife, so that the cutting knife can quickly and accurately cut the raw material of the packing 3 passing through the hollow chamber 107, so that the cut surface flatness of the finished product of the packing 3 is better. The final product of the packing 3 is the packing 02 used for pump shaft sealing. The finished product of the packing 3 is the packing segment cut off from the raw material of the packing 3 according to actual needs. The inclination angle A can be 45°.

[0037] The water pump filler cutting tool of the utility model limits the raw material of the filler 3 by setting a limit frame 1 with a hollow chamber 107 along the axial direction. The first truncation bevel groove 104 and the second truncation bevel groove 105 are provided on the limit frame 1 to guide the cutting knife during cutting, so that the incision surfaces at both ends of the filler 3 are smoother and the incision angle is more accurate, which reduces the requirements on the experience of the cutting workers, improves the cutting efficiency and cutting quality, and improves the production efficiency.

[0038] Specifically, the limiting frame 1 includes an inlet auxiliary pipe section 101, a main pipe section 102 and an outlet auxiliary pipe section 103 which are arranged in sequence. Figure 3 As shown, the first truncation chute 104 is arranged between the inlet auxiliary pipe section 101 and the main pipe section 102, and the second truncation chute 105 is arranged between the main pipe section 102 and the outlet auxiliary pipe section 103. The filler 3 material section in the main pipe section 102 after the raw material of the filler 3 is cut is the final finished filler, and the material section in the inlet auxiliary pipe section 101 and the outlet auxiliary pipe section 103 is used to assist in limiting the cut filler 3, so as to avoid the material section at both ends outside the main pipe section 102 from warping and affecting the cutting angle and the flatness of the cut surface, thereby ensuring the position reliability when the filler is cut.

[0039] In one embodiment, the limiting frame 1 is a ring frame. Figures 2 to 5 As shown, the limiting frame 1 is provided with a feeding gap 106, which is provided between the inlet auxiliary pipe section 101 and the outlet auxiliary pipe section 103. The limiting frame 1 is located at the ends of both sides of the feeding gap 106, one of which is the filler inlet and the other is the filler outlet. Figure 5 As shown, the thick solid arrow is the schematic direction of the filler 3 entering the hollow chamber 107, and the thin solid arrow is the schematic direction of the filler 3 leading out of the hollow chamber 107. It can be understood that in order to facilitate the penetration and leading out of the raw materials of the filler 3, the width of the feed gap 106 is greater than the slot width of the first truncation chute 104, and the specific width of the feed gap 106 is set by those skilled in the art according to actual needs.

[0040] Furthermore, in order to facilitate processing and production, the first truncated bevel groove 104 and the second truncated bevel groove 105 have the same groove width, and the groove width of the first truncated bevel groove 104 and the second truncated bevel groove 105 are slightly larger than the thickness of the cutting knife for cutting the filler 3, so that the cutting knife can cut the filler.

[0041] In one embodiment, the support body 2 includes a base frame 201 and a support column 202, one end of the support column 202 is fixedly connected to the base frame 201, and the other end is fixedly connected to the limit frame 1. By setting the support body 2, it is convenient to adjust the height of the filler to be processed, so as to facilitate the cutting process of the workers. The specific setting height is set by those skilled in the art according to the actual processing needs and is not limited here. Figure 4 As shown, the height of the support 202 is fixed. In other embodiments, the support 202 can also be set to a height-adjustable structure commonly used in the field, which is not limited here. Specifically, the base frame 201 and the support 202 are welded, and the support 202 is welded to the limit frame 1. The base frame 201 is an arc-shaped rod set along the limit frame 1 to improve the stability of the support.

[0042] In order to ensure the stability of the structure, at least one support column 202 is fixedly provided at the bottom end of any one of the inlet auxiliary pipe section 101, the main pipe section 102 and the outlet auxiliary pipe section 103. Preferably, two support columns 202 are provided at the bottom end of any one of the inlet auxiliary pipe section 101, the main pipe section 102 and the outlet auxiliary pipe section 103. The base frame 201 and the support columns 202 may be hollow rods or may be welded plates. Figure 6 and Figure 7 The schematic diagram of the structure of the filler 3 after cutting is shown. Figure 8 and Fig. 9 It is a schematic diagram of the structure in which the cut filler 3 is bent into an arc shape required for installation.

[0043] The cross section of the hollow chamber 107 is rectangular, circular or square, which is specifically determined according to the cross-sectional shape of the filler 3 .

[0044] In another embodiment, if Fig.10 and Fig.11 As shown, the limiting frame 1 is a linear frame, and the two ends of the limiting frame 1 are a filler inlet and a filler outlet. In order to improve the support stability of the bracket body 2, the bottom frame 201 includes a vertical cross-welded cross bar and a longitudinal bar.

[0045] The water pump filler cutting tool of the utility model improves the work efficiency of filler cutting, ensures the flatness of the cut surface of the filler and the accuracy of the cut angle, avoids the deviation of the cut structure caused by the cutting process of the filler, improves the reliability of the filler seal, avoids the influence of cooling water lubrication due to inaccurate cut angle, avoids dry grinding, and improves the reliability of the pump shaft seal.

[0046] In the description of this solution, it should be understood that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this solution.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0048] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A water pump filler cutting tool, characterized in that: It includes a bracket body and a limit frame, the limit frame is fixedly arranged on the bracket body, and a hollow chamber is axially arranged on the limit frame, and the cross section of the hollow chamber is arranged corresponding to the cross section of the filler; the limit frame is provided with a first truncated bevel and a second truncated bevel, the inclination direction of the first truncated bevel and the second truncated bevel are consistent, the inclination angles of the first truncated bevel and the second truncated bevel are the same as the inclination angle of the end cut of the finished filler, and the spacing distance between the first truncated bevel and the second truncated bevel along the limit frame is the same as the length of the finished filler.

2. The water pump filler cutting tool according to claim 1, characterized in that: The limiting frame includes an inlet auxiliary pipe section, a main pipe section and an outlet auxiliary pipe section which are arranged in sequence, the first truncation chute is arranged between the inlet auxiliary pipe section and the main pipe section, and the second truncation chute is arranged between the main pipe section and the outlet auxiliary pipe section.

3. The water pump filler cutting tool according to claim 2, characterized in that: The limiting frame is an annular frame body, and a feeding gap is arranged on the limiting frame. The feeding gap is arranged between the inlet auxiliary pipe section and the outlet auxiliary pipe section. The limiting frame is located at the ends on both sides of the feeding gap, one of which is the filler inlet and the other is the filler outlet.

4. The water pump filler cutting tool according to claim 2, characterized in that: The limiting frame is a linear frame body, and two ends of the limiting frame, one is a filler inlet, and the other is a filler outlet.

5. The water pump filler cutting tool according to claim 2, characterized in that: The support body comprises a base frame and a support column, one end of the support column is fixedly connected to the base frame, and the other end of the support column is fixedly connected to the limiting frame.

6. The water pump filler cutting tool according to claim 5, characterized in that: The base frame is welded to the support column, and the support column is welded to the limiting frame.

7. The water pump filler cutting tool according to claim 5, characterized in that: At least one support is fixedly disposed at the bottom end of any one of the inlet auxiliary pipe section, the main pipe section and the outlet auxiliary pipe section.

8. The water pump filler cutting tool according to claim 1, characterized in that: The cross section of the hollow chamber is rectangular, circular or square.

9. The water pump filler cutting tool according to claim 1, characterized in that: The first truncation bevel groove and the second truncation bevel groove have the same groove width, and the groove width of the first truncation bevel groove and the second truncation bevel groove is greater than the thickness of the cutting blade.

10. The water pump filler cutting tool according to claim 3, characterized in that: The width of the feed gap is greater than the width of the first truncation chute.

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