Maintenance-free slurry pump packing sealing structure convenient to replace

Abstract

The utility model discloses a maintenance-free slurry pump packing sealing structure convenient to replace, relates to the technical field of slurry pump packing sealing, and provides the following scheme that the maintenance-free slurry pump packing sealing structure comprises a packing gland and a sliding mechanism arranged at the top of the packing gland, the sliding mechanism comprises a working assembly and a sliding assembly, the working assembly comprises a fixed column, and the fixed column is fixedly connected with the sliding assembly. The packing gland is inserted into the device, then the fixing plate and the connecting block are fixedly connected through the gland bolt, the fixing column is ejected out of the groove of the sliding column through the elastic force of the spring, a certain distance and elastic force are guaranteed between the fixing plate and the connecting block, and when air pressure occurs in the device, the packing gland is ejected out of the device; the first fixing ring, the second fixing ring, the third fixing ring and the fourth fixing ring are connected by inserting hexagonal bolts into the grooves of the butt joint plates, rapid assembly can be achieved, sealing is guaranteed, and meanwhile the time wasted for disassembly is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of packing seals for slurry pumps, in particular to a packing seal structure for slurry pumps which is easy to replace and maintenance-free. Background Art

[0002] Slurry pump is a centrifugal pump, mainly used for conveying slurry containing solid particles. Slurry pump is a heavy-duty structure, can withstand more wear, commonly used in industrial fields, such as mining, electric power, metallurgy, coal, environmental protection and other industries, used to convey slurry containing abrasive solid particles, such as ore slurry, hydraulic deashing slurry, coal slurry, heavy medium conveying.

[0003] However, in the operation of traditional packing seals, the packing will leak after being worn, and the packing gland needs to be frequently tightened to ensure the seal, which requires frequent on-site maintenance and increases the workload. In addition, the packing seal cavity is small in width and large in depth, so it is very difficult to replace the packing. In addition, the pump needs to be dismantled to replace other parts of the packing seal, such as the stuffing box and water seal ring. This will be a lot of work for on-site personnel. Therefore, a maintenance-free slurry pump packing seal structure that is easy to replace is needed. Utility Model Content

[0004] The utility model aims to provide a maintenance-free slurry pump packing sealing structure which is easy to replace, and solves the problems in the prior art that after the packing is worn, leakage may occur and it is very difficult to replace the packing.

[0005] To achieve the above object, the utility model provides the following technical solutions: a maintenance-free slurry pump packing seal structure that is easy to replace, comprising a packing gland and a sliding mechanism arranged on the top of the packing gland, wherein the sliding mechanism comprises a working assembly and a sliding assembly;

[0006] The working assembly comprises a fixed column, the inner wall of the packing gland is fixedly connected with the fixed column, the top of the fixed column is fixedly connected with a spring, and the outer wall of the fixed column is slidably connected with a sliding column;

[0007] The sliding assembly includes a fixed plate, the top of the sliding column is fixedly connected to the fixed plate, the interior of the fixed plate is slidably connected to a gland bolt, the outer wall of the gland bolt is slidably connected to a connecting block, and the outer wall of the connecting block is fixedly connected to a connecting plate.

[0008] Preferably, the outer wall of the stuffing gland is slidably connected to a first fixing ring, the bottom of the first fixing ring is fixedly connected to a second fixing ring, the outer wall of the second fixing ring is fixedly connected to a docking plate, the outer wall of the docking plate is provided with hexagonal bolts, the outer wall of the second fixing ring is fixedly connected to a fixed inclined plate, the bottom of the second fixing ring is fixedly connected to a third fixing ring, and the bottom end of the third fixing ring is fixedly connected to a fourth fixing ring.

[0009] Preferably, the packing gland is provided with a sliding groove which matches the sliding column.

[0010] Preferably, the sliding column is provided with a sliding groove which matches the fixed column.

[0011] Preferably, the fixed column, spring, sliding column, fixed plate, gland bolt, connecting block and connecting plate are arranged in two groups, and the positional relationship of the two groups of fixed columns, springs, sliding columns, fixed plates, gland bolts, connecting blocks and connecting plates are symmetrically distributed about the center of the packing gland.

[0012] Preferably, the docking plate is provided with a sliding groove that matches the hexagonal bolt.

[0013] Preferably, two groups of the hexagonal bolts are provided, and the positions of the two groups of the hexagonal bolts are symmetrically distributed about the center of the second fixing ring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By inserting the packing gland into the interior, and then fixing the fixing plate and the connecting block, they are connected and fixed by the gland bolts, and the fixing column is popped out from the groove of the sliding column by relying on the elastic force of the spring, so that the fixing plate and the connecting block maintain a certain distance and elastic force. When air pressure appears inside the equipment, the packing gland will be pushed out from the inside for automatic deflation adjustment, and then the hexagonal bolts are inserted into the groove of the docking plate to complete the connection of the first fixing ring, the second fixing ring, the third fixing ring and the fourth fixing ring. It can be quickly assembled to ensure sealing while reducing the time wasted on disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram from a first perspective of a maintenance-free slurry pump packing seal structure that is easy to replace proposed by the utility model;

[0017] Figure 2 This is a second perspective structural schematic diagram of a maintenance-free slurry pump packing seal structure that is easy to replace proposed by the utility model;

[0018] Figure 3 A schematic diagram of the sliding structure of a maintenance-free slurry pump packing seal structure that is easy to replace proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of a connecting structure of a butt joint plate and hexagonal bolts of a maintenance-free slurry pump packing seal structure which is easy to replace.

[0020] In the figure: 1. packing gland; 2. fixing column; 3. spring; 4. sliding column; 5. fixing plate; 6. gland bolt; 7. connecting block; 8. connecting plate; 9. first fixing ring; 10. second fixing ring; 11. docking plate; 12. hexagonal bolt; 13. fixing inclined plate; 14. third fixing ring; 15. fourth fixing ring. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] like Figure 1-4 As shown, a maintenance-free slurry pump packing seal structure that is easy to replace includes a packing gland 1 and a sliding mechanism arranged on the top of the packing gland 1, and the sliding mechanism includes a working component and a sliding component;

[0024] The working assembly includes a fixed column 2, the inner wall of the packing gland 1 is fixedly connected with the fixed column 2, the top of the fixed column 2 is fixedly connected with a spring 3, and the outer wall of the fixed column 2 is slidably connected with a sliding column 4;

[0025] The sliding assembly includes a fixed plate 5, the top of the sliding column 4 is fixedly connected to the fixed plate 5, the interior of the fixed plate 5 is slidably connected to a gland bolt 6, the outer wall of the gland bolt 6 is slidably connected to a connecting block 7, and the outer wall of the connecting block 7 is fixedly connected to a connecting plate 8.

[0026] Among them, Figure 3 As shown, the packing gland 1 is provided with a sliding groove that matches the sliding column 4, which is beneficial for the packing gland 1 to seal the equipment.

[0027] Among them, Figure 3 As shown, the sliding column 4 is provided with a sliding groove which matches with the fixed column 2 , which is beneficial for the spring 3 to move in the groove provided in the packing gland 1 .

[0028] Among them, Figure 2 As shown, two groups of fixed columns 2, springs 3, sliding columns 4, fixed plates 5, gland bolts 6, connecting blocks 7 and connecting plates 8 are provided. The positional relationship of the two groups of fixed columns 2, springs 3, sliding columns 4, fixed plates 5, gland bolts 6, connecting blocks 7 and connecting plates 8 are symmetrically distributed about the center of the packing gland 1, which is conducive to ensuring stability and preventing one side from protruding due to air pressure.

[0029] Example 2

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment further illustrates Example 1, the outer wall of the stuffing gland 1 is slidably connected with a first fixing ring 9, the bottom of the first fixing ring 9 is fixedly connected with a second fixing ring 10, the outer wall of the second fixing ring 10 is fixedly connected with a docking plate 11, the outer wall of the docking plate 11 is provided with a hexagonal bolt 12, the outer wall of the second fixing ring 10 is fixedly connected with a fixed inclined plate 13, the bottom of the second fixing ring 10 is fixedly connected with a third fixing ring 14, and the bottom end of the third fixing ring 14 is fixedly connected with a fourth fixing ring 15.

[0031] Among them, Figure 4 As shown, the docking plate 11 is provided with a sliding groove that matches the hexagonal bolt 12, which is conducive to quickly disassembling the second fixing ring 10.

[0032] Among them, Figure 1 As shown, two groups of hexagonal bolts 12 are provided, and the positions of the two groups of hexagonal bolts 12 are symmetrically distributed about the center of the second fixing ring 10, which is beneficial to ensure the sealing of the equipment and prevent leakage on one side.

[0033] During use: insert the packing gland 1 into the interior, and then fix the fixing plate 5 and the connecting block 7, connect and fix them by the gland bolts 6, and rely on the elastic force of the spring 3 to pop out the fixing column 2 from the groove of the sliding column 4, so that the fixing plate 5 and the connecting block 7 maintain a certain distance and elastic force. When air pressure appears inside the equipment, the packing gland 1 will be pushed out from the inside to perform automatic deflation adjustment, and then the hexagonal bolts 12 will be inserted into the groove of the docking plate 11 to complete the connection of the first fixing ring 9, the second fixing ring 10, the third fixing ring 14 and the fourth fixing ring 15. It can be quickly assembled to ensure sealing while reducing the time wasted on disassembly.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free slurry pump packing seal structure that is easy to replace, comprising a packing gland (1) and a sliding mechanism arranged on the top of the packing gland (1), characterized in that: The sliding mechanism comprises a working component and a sliding component; The working assembly comprises a fixed column (2), the inner wall of the packing gland (1) is fixedly connected to the fixed column (2), the top end of the fixed column (2) is fixedly connected to a spring (3), and the outer wall of the fixed column (2) is slidably connected to a sliding column (4); The sliding assembly comprises a fixed plate (5), the top end of the sliding column (4) is fixedly connected to the fixed plate (5), the interior of the fixed plate (5) is slidably connected to a gland bolt (6), the outer wall of the gland bolt (6) is slidably connected to a connecting block (7), and the outer wall of the connecting block (7) is fixedly connected to a connecting plate (8).

2. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 1 is characterized in that: The outer wall of the packing gland (1) is slidably connected to a first fixing ring (9), the bottom of the first fixing ring (9) is fixedly connected to a second fixing ring (10), the outer wall of the second fixing ring (10) is fixedly connected to a docking plate (11), the outer wall of the docking plate (11) is provided with a hexagonal bolt (12), the outer wall of the second fixing ring (10) is fixedly connected to a fixed inclined plate (13), the bottom of the second fixing ring (10) is fixedly connected to a third fixing ring (14), and the bottom end of the third fixing ring (14) is fixedly connected to a fourth fixing ring (15).

3. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 1 is characterized in that: The packing gland (1) is provided with a sliding groove which matches the sliding column (4).

4. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 1 is characterized in that: The sliding column (4) is provided with a sliding groove which matches the fixed column (2).

5. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 1 is characterized in that: The fixed column (2), spring (3), sliding column (4), fixed plate (5), gland bolt (6), connecting block (7) and connecting plate (8) are provided in two groups, and the positional relationship of the two groups of the fixed column (2), spring (3), sliding column (4), fixed plate (5), gland bolt (6), connecting block (7) and connecting plate (8) is symmetrically distributed about the center of the packing gland (1).

6. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 2 is characterized by: The butt joint plate (11) is provided with a sliding groove which matches the hexagonal bolt (12).

7. The maintenance-free slurry pump packing seal structure that is easy to replace according to claim 2 is characterized by: Two groups of hexagonal bolts (12) are provided, and the positional relationship of the two groups of hexagonal bolts (12) is symmetrically distributed about the center of the second fixing ring (10).

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