Novel large-shaft-diameter split type mechanical seal

Abstract

The utility model provides a novel large shaft diameter split type mechanical seal, which relates to the technical field of mechanical seals, and comprises a first half ring and a second half ring, the two ends of the first half ring are respectively provided with a first fixing block, the two ends of the second half ring are respectively provided with a second fixing block, the middle end of the interior of the first fixing block is provided with a fastening bolt, and the fastening bolt is connected with the first fixing block. A screw hole matched with the fastening bolt is formed in the second fixing block; the two first fixing blocks are connected with a support. During fixation, the rotary knob assembly is rotated, the rotating shaft is driven to rotate, the linkage piece is matched to drive the polygonal rod to rotate, the polygonal rod drives the polygonal sleeve and the tool heads to rotate, and the tool heads at the two ends drive the fastening bolts at the two ends to rotate; the two ends of the tool can be fixed only by driving one rotary knob assembly on the whole, use is convenient, and efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical seal technical field especially relates to a new big axle diameter split type mechanical seal. BACKGROUND

[0002] Split type mechanical seal is a kind of special mechanical seal structure, it is by the sealing element (such as rubber ring or sealing ring) split into two or more parts, and is installed on the different components of machinery respectively, to reduce the radial dimension of mechanical seal surface, realize better sealing effect, this design makes in the case where whole mechanical equipment is not needed to be disassembled, can conveniently replace or maintain sealing element, greatly reduces the installation and maintenance cost of equipment, shortens downtime, split type mechanical seal is widely used in various high sealing performance and quick maintenance mechanical equipment required;

[0003] The existing split type mechanical seal generally fastens and combines two parts or multiple parts with bolt, such as two split type mechanical seal, when installing, two parts are combined, and bolt is inserted at both ends to fasten, especially in the installation of big axle diameter mechanical seal, since the axle diameter is larger, the fixed position of both ends is far apart, after fastening bolt at one end, the other end of sealing needs to be fastened, multiple operations, it is very inconvenient, therefore, the utility model provides a new big axle diameter split type mechanical seal to solve the problems in the prior art. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a new big axle diameter split type mechanical seal, the new big axle diameter split type mechanical seal only needs to drive a knob assembly to be fixed at both ends, is convenient to use, and is high in efficiency.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a new big axle diameter split type mechanical seal, including first half ring and second half ring, both ends of the first half ring are equipped with first fixed block, both ends of the second half ring are equipped with second fixed block, the middle end in the first fixed block is equipped with fastening bolt, the second fixed block is equipped with the screw hole matched with fastening bolt;

[0006] Two groups of first fixed blocks are connected with support, and one side of both ends of support is equipped with sliding slot, the inside of sliding slot is elastically movable and equipped with elastic block, and the inside of elastic block is rotatably equipped with polygon sleeve, one side of polygon sleeve is equipped with tool head matched with fastening bolt, both ends in the inside of support are rotatably equipped with polygon rod, and polygon rod is inserted into the inside of polygon sleeve and is slidably matched, one side in the inside of support is rotatably equipped with rotating shaft, and rotating shaft and polygon are rotatably connected through linkage, and rotating shaft is driven to rotate through knob assembly.

[0007] Further improvement lies in that the first fixed block is provided with a guide rod at each end of one side, and the second fixed block is provided with a guide hole matched with the guide rod at each end of the inside.

[0008] Further improvement lies in that the inside of the chute is provided with a sliding rod, a sliding block is movably arranged on the sliding rod, a spring is connected between the sliding block and one side of the inside of the chute, the spring is sleeved on the outside of the sliding rod, and the elastic block is connected to the sliding block.

[0009] Further improvement lies in that the inside of the chute is provided with a sliding rod, a sliding block is movably arranged on the sliding rod, a spring is connected between the sliding block and one side of the inside of the chute, the spring is sleeved on the outside of the sliding rod, and the elastic block is connected to the sliding block.

[0010] Further improvement lies in that the inside of the chute is provided with a sliding rod, a sliding block is movably arranged on the sliding rod, a spring is connected between the sliding block and one side of the inside of the chute, the spring is sleeved on the outside of the sliding rod, and the elastic block is connected to the sliding block.

[0011] Further improvement lies in that the inside of the chute is provided with a sliding rod, a sliding block is movably arranged on the sliding rod, a spring is connected between the sliding block and one side of the inside of the chute, the spring is sleeved on the outside of the sliding rod, and the elastic block is connected to the sliding block.

[0012] Further improvement lies in that the inside of the chute is provided with a sliding rod, a sliding block is movably arranged on the sliding rod, a spring is connected between the sliding block and one side of the inside of the chute, the spring is sleeved on the outside of the sliding rod, and the elastic block is connected to the sliding block.

[0013] The utility model discloses a beneficial effect is:

[0014] 1, the utility model discloses a first half ring and second half ring are combined, cooperate first fixed block and second fixed block and fastening bolt and fix, when fixing, only need to rotate knob assembly, drive the rotation of the rotating shaft, cooperate linkage piece and drive polygonal bar rotation, polygonal bar drives polygonal sleeve and tool head rotation, and the tool head of both ends drives the rotation of fastening bolt of both ends, in this process, through the elastic block elastic depression, make tool head rotate while depressing the process of matching fastening bolt, reach the purpose of fastening, only drive a knob assembly can both ends be fixed, convenient to use, high efficiency.

[0015] 2, the utility model discloses a support is installed with first fixed block through screw, when not using, can be disassembled according to need, and fastening bolt can also directly use other tools and operate, provide multiple use mode. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the first half ring, second half ring schematic view of the utility model;

[0018] Figure 3 It is the internal structure schematic view of the support of the utility model;

[0019] Figure 4 It is the polygon sleeve, polygon rod adaptation schematic view of the utility model.

[0020] Among them: 1, the first half ring; 2, the second half ring; 3, the first fixed block; 4, the second fixed block; 5, fastening bolt; 6, support; 7, sliding slot; 8, elastic block; 9, polygon sleeve; 10, tool head; 11, polygon rod; 12, rotating shaft; 13, guide rod; 14, sliding rod; 15, sliding block; 16, spring; 17, shaft block; 18, worm wheel; 19, worm gear tooth; 20, first bevel gear; 21, second bevel gear; 22, knob; 23, screw. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with examples, and the present embodiment is only used to explain the utility model, and does not constitute the limitation of the protection scope of the utility model.

[0022] Example One

[0023] According to Figure 1 , 2 , 3, 4, the present embodiment proposes a new large shaft diameter split type mechanical seal, including first half ring 1 and second half ring 2, both ends of the first half ring 1 are provided with the first fixed block 3, both ends of the second half ring 2 are provided with the second fixed block 4, the middle end inside the first fixed block 3 is provided with the fastening bolt 5, the second fixed block 4 is provided with the screw hole matched with the fastening bolt 5;

[0024] The first fixed block 3 is connected with a support 6, and one side of the two ends of the support 6 is provided with a sliding groove 7, the inside of the sliding groove 7 is elastically movably provided with an elastic block 8, and the inside of the elastic block 8 is rotatably provided with a polygon sleeve 9, one side of the polygon sleeve 9 is provided with a tool head 10 matched with the fastening bolt 5, the two ends inside the support 6 are rotatably provided with polygon rods 11, and the polygon rods 11 are inserted into the inside of the polygon sleeve 9 and are slidably matched, one side inside the support 6 is rotatably provided with a rotating shaft 12, and the rotating shaft 12 is rotatably connected with the polygon through a linkage, and the rotating shaft 12 is driven to rotate through a knob assembly. When in use, the first half ring 1 and the second half ring 2 are combined, and the first fixed block 3 and the second fixed block 4 and the fastening bolt 5 are fixed, during the fixing process, only the rotating knob assembly needs to be rotated to drive the rotating shaft 12 to rotate, and the linkage drives the polygon rod 11 to rotate, the polygon rod 11 drives the polygon sleeve 9 and the tool head 10 to rotate, and the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate, in this process, the elastic block 8 is elastically pressed downward to make the tool head 10 downwardly match the process of rotating the fastening bolt 5, so that the purpose of fastening is achieved, and only one rotating knob assembly needs to be driven to fix both ends, which is convenient to use and high in efficiency, and the polygon rod 11 is slidably matched with the polygon sleeve 9, but they are rotatably matched.

[0025] The two ends of one side of the first fixed block 3 are provided with guide rods 13, and the two ends inside the second fixed block 4 are provided with guide holes matched with the guide rods 13. When the first fixed block 3 and the second fixed block 4 are fixed in cooperation with the fastening bolt 5, the guide rods 13 and the guide holes are matched to make the first fixed block 3 and the second fixed block 4 accurately matched.

[0026] The inside of the sliding groove 7 is provided with a sliding rod 14, and the sliding rod 14 is movably provided with a sliding block 15, the sliding block 15 and one side inside the sliding groove 7 are connected with a spring 16, the spring 16 is sleeved on the outside of the sliding rod 14, and the elastic block 8 is connected on the sliding block 15. During the fixing process, only the rotating knob assembly needs to be rotated to drive the rotating shaft 12 to rotate, and the linkage drives the polygon rod 11 to rotate, the polygon rod 11 drives the polygon sleeve 9 and the tool head 10 to rotate, and the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate, in this process, the spring 16 extrudes the sliding block 15 to make the elastic block 8 elastically pressed downward to make the tool head 10 downwardly match the process of rotating the fastening bolt 5, so that the purpose of fastening is achieved.

[0027] The inside of the sliding groove 7 is provided with a sliding rod 14, and the sliding rod 14 is movably provided with a sliding block 15, the sliding block 15 and one side inside the sliding groove 7 are connected with a spring 16, the spring 16 is sleeved on the outside of the sliding rod 14, and the elastic block 8 is connected on the sliding block 15. During the fixing process, only the rotating knob assembly needs to be rotated to drive the rotating shaft 12 to rotate, and the linkage drives the polygon rod 11 to rotate, the polygon rod 11 drives the polygon sleeve 9 and the tool head 10 to rotate, and the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate, in this process, the spring 16 extrudes the sliding block 15 to make the elastic block 8 elastically pressed downward to make the tool head 10 downwardly match the process of rotating the fastening bolt 5, so that the purpose of fastening is achieved.

[0028] The linkage comprises a worm wheel 18 and a worm gear 19, one side of each of the two groups of polygonal rods 11 is provided with the worm wheel 18, and both ends of the outer side of the rotating shaft 12 are provided with the worm gear 19, which is matched with the worm wheel 18. The knob assembly comprises a first bevel gear 20, a second bevel gear 21 and a knob 22, the first bevel gear 20 is arranged on the middle end of the rotating shaft 12, the second bevel gear 21 is rotatably arranged at the middle position of one side inside the bracket 6, and the second bevel gear 21 is matched with the first bevel gear 20, and the knob 22 is connected to one side of the second bevel gear 21. In use, rotating the knob 22 drives the second bevel gear 21 to rotate, drives the first bevel gear 20 to rotate, drives the rotating shaft 12 and the worm gear 19 to rotate, the worm gear 19 drives the worm wheel 18 to rotate, drives the polygonal rod 11 to rotate, the polygonal rod 11 drives the polygonal sleeve 9 and the tool head 10 to rotate, and the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate. In this process, the elastic block 8 is elastically pressed down, so that the tool head 10 is pressed down while rotating to adapt to the fastening bolt 5, so as to achieve the purpose of fastening.

[0029] Embodiment two

[0030] According to Figure 1 , 2 , 3, 4, the embodiment provides a new large shaft diameter split type mechanical seal, which comprises a first half ring 1 and a second half ring 2, both ends of the first half ring 1 are provided with first fixed blocks 3, both ends of the second half ring 2 are provided with second fixed blocks 4, the middle end inside the first fixed block 3 is provided with a fastening bolt 5, and the second fixed block 4 is provided with a screw hole matched with the fastening bolt 5;

[0031] Two groups of the first fixed block 3 is connected with support 6, and the both ends of the support 6 is provided with a sliding groove 7, the inside of the sliding groove 7 is elastically movable provided with a spring block 8, and the inside of the spring block 8 is rotatably provided with a polygon sleeve 9, one side of the polygon sleeve 9 is provided with a tool head 10 matched with the fastening bolt 5, both ends of the inside of the support 6 are rotatably provided with a polygon rod 11, and the polygon rod 11 is inserted into the inside of the polygon sleeve 9 and is slidably matched, one side of the inside of the support 6 is rotatably provided with a rotating shaft 12, and the rotating shaft 12 is rotatably connected with the polygon through a linkage, and the rotating shaft 12 is driven to rotate through a knob assembly. In use, the first half ring 1 and the second half ring 2 are combined, and the first fixed block 3 and the second fixed block 4 and the fastening bolt 5 are fixed, during the fixing process, only need to rotate the knob assembly, drive the rotating shaft 12 to rotate, cooperate with the linkage to drive the polygon rod 11 to rotate, the polygon rod 11 drives the polygon sleeve 9 and the tool head 10 to rotate, the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate, in this process, the spring block 8 is elastically pressed down, so that the tool head 10 is pressed down while rotating, and the process of the fastening bolt 5 is matched, the purpose of fastening is achieved, only one knob assembly needs to be driven to fix both ends, it is convenient to use, high efficiency, the polygon rod 11 and the polygon sleeve 9 are slidably matched, but they are rotatably matched.

[0032] Both ends of one side of the first fixed block 3 are provided with guide rods 13, and both ends of the inside of the second fixed block 4 are provided with guide holes matched with the guide rods 13. When the first fixed block 3 and the second fixed block 4 are fixed by cooperating with the fastening bolt 5, the first fixed block 3 and the second fixed block 4 are accurately matched through the matching action of the guide rods 13 and the guide holes.

[0033] The both ends of the support 6 and the both ends of the first fixed block 3 are fixed by screws 23. The support 6 is installed with the first fixed block 3 by screws 23, which can be disassembled as needed when not in use, and the fastening bolt 5 can also be directly operated by other tools, providing multiple use modes.

[0034] The new large shaft diameter split mechanical seal is combined through the first half ring 1 and the second half ring 2, is fixed through the first fixed block 3 and the second fixed block 4 and the fastening bolt 5, and only needs to rotate the knob assembly to drive the rotating shaft 12 to rotate in the fixing, cooperates the linkage to drive the polygonal rod 11 to rotate, the polygonal rod 11 drives the polygonal sleeve 9 and the tool head 10 to rotate, the tool head 10 at both ends drives the fastening bolt 5 at both ends to rotate, in the process, the tool head 10 is pressed down simultaneously with the rotation of the tool head 10 through the elastic block 8, so that the process of the fastening bolt 5 is pressed down, reaches the fastening purpose, and the total only needs to drive one knob assembly to be fixed at both ends, is convenient to use, and is high in efficiency.The bracket 6 of the product is installed with the first fixed block 3 through the screw 23, can be disassembled as required when not being used, and the fastening bolt 5 can also be directly operated using other tools, so that various use modes are provided.

[0035] The basic principle, main features and advantages of the utility model are shown and described above.The skilled person in the art should understand that the utility model is not limited by the above-described embodiments, and the above-described embodiments and the description in the specification only illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new large shaft split mechanical seal comprising a first half ring (1) and a second half ring (2), characterized in that: Both ends of the first half ring (1) are provided with first fixed blocks (3), both ends of the second half ring (2) are provided with second fixed blocks (4), the middle end of the first fixed block (3) is provided with a fastening bolt (5), and the second fixed block (4) is provided with a threaded hole matched with the fastening bolt (5). Two groups of the first fixed block (3) are connected with supports (6), one side of both ends of the support (6) is provided with a sliding groove (7), the inside of the sliding groove (7) is elastically movably provided with an elastic block (8), the inside of the elastic block (8) is rotatably provided with a polygon sleeve (9), one side of the polygon sleeve (9) is provided with a tool head (10) matched with the fastening bolt (5), both ends of the inside of the support (6) are rotatably provided with polygon rods (11), the polygon rod (11) is inserted into the inside of the polygon sleeve (9) and is slidably matched, one side of the inside of the support (6) is rotatably provided with a rotating shaft (12), the rotating shaft (12) is rotatably connected with the polygon through a linkage, and the rotating shaft (12) is driven to rotate through a knob assembly.

2. A new large shaft split mechanical seal as claimed in claim 1, wherein: Both ends of one side of the first fixed block (3) are provided with guide rods (13), and both ends of the inside of the second fixed block (4) are provided with guide holes matched with the guide rods (13).

3. A new large shaft split mechanical seal as claimed in claim 1, wherein: The inside of the sliding groove (7) is provided with a sliding rod (14), and the sliding rod (14) is movably provided with a sliding block (15), the sliding block (15) and one side of the inside of the sliding groove (7) are connected with a spring (16), the spring (16) is sleeved on the outside of the sliding rod (14), and the elastic block (8) is connected to the sliding block (15).

4. A new large shaft split mechanical seal as claimed in claim 1, wherein: Both ends of the inside of the support (6) are provided with shaft blocks (17) away from the elastic block (8), and the polygon rods (11) at both ends are rotatably arranged in the inside of the shaft blocks (17) at both ends.

5. A new large shaft split mechanical seal as claimed in claim 1, wherein: The linkage comprises a worm wheel (18) and a worm gear (19), one side of the polygon rod (11) is provided with the worm wheel (18), both ends of the outside of the rotating shaft (12) are provided with the worm gear (19), and the worm gear (19) is matched with the worm wheel (18).

6. A novel large shaft split mechanical seal as claimed in claim 5, wherein: The knob assembly comprises a first bevel gear (20), a second bevel gear (21) and a knob (22), the first bevel gear (20) is arranged at the middle end of the rotating shaft (12), the second bevel gear (21) is rotatably arranged at the middle position of one side of the inside of the support (6), the second bevel gear (21) is matched with the first bevel gear (20), and the knob (22) is connected to one side of the second bevel gear (21).

7. A new large shaft split mechanical seal as claimed in claim 1, wherein: Both ends of the support (6) and the first fixed blocks (3) at both ends are fixed through screws (23).

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