Magnetic sealing coupling
By designing a magnetic seal coupling, stable rotation is achieved using the boss and bearing, and sealing is ensured through sealing and clamping, the problems of shaking and bumping of magnetic components are solved, and stable rotation and sealing effect is achieved.
Patent Information
- Application Number
- CN202323583499.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Magnetic components will shake when rotating, and when the shaking amplitude is large, it will cause bumps and affect the sealing effect.
A magnetic sealed coupling is designed, including an outer cylinder, a middle cylinder, an inner rod, a first magnetic member and a second magnetic member, and a stable rotational connection is achieved through a boss and a bearing, and sealing is ensured through a seal and a clamp. , use adjusters and pull rods to avoid loosening and position deviation.
The stable rotation and sealing of the magnetic seal coupling is achieved, which avoids leakage and jitter, and ensures the stable operation of the equipment.
Smart Images
Figure CN222147386U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of couplings, in particular to a magnetic sealing coupling. Background Art
[0002] The agitator is a motor connected to a stirring rod through a coupling, and the material is stirred through the stirring rod. The motor is installed outside the mixing drum, and the stirring rod is installed inside the mixing drum. In order to prevent leakage of the agitator, a sealing component is installed between the motor and the stirring rod to seal the mixing drum.
[0003] After a long period of sealing, the sealing parts will wear out, affecting the sealing effect. Therefore, for agitators with higher sealing performance requirements, magnetic couplings are used to connect the motor and the stirring rod. Since the magnetic parts of the magnetic coupling do not touch each other, they will not wear out, and the sealing effect is also better.
[0004] However, the magnetic components will vibrate to a certain extent when rotating, and when the vibration amplitude is large, bumps will occur.
[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention
[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a magnetic sealing coupling to solve the problem that the magnetic components in the prior art will vibrate to a certain extent when rotating, and when the vibration amplitude is large, bumps will occur.
[0007] To achieve the above purpose, the technical solution of the utility model is as follows:
[0008] A magnetic sealing coupling;
[0009] It includes an outer cylinder, a middle cylinder rotatably arranged in the outer cylinder, an inner rod rotatably arranged in the middle cylinder, a first magnetic member arranged in the outer cylinder, and a second magnetic member arranged in the inner rod;
[0010] The middle tube is provided with bosses in the direction of the outer tube and the inner rod; the bosses are respectively rotatably connected to the outer tube and the inner rod.
[0011] A further technical solution is: it also includes a first bearing; the first bearing is respectively arranged between the outer tube and the middle tube, and between the middle tube and the inner rod.
[0012] A further technical solution is: second bearings are respectively arranged at both ends of the boss; and the second bearings are respectively connected to the outer cylinder and the inner rod.
[0013] A further technical solution is: it also includes clamping blocks clamped on both sides of the device; the clamping block on one side is threadedly connected to the middle tube; and the clamping block on the other side is movably arranged on the inner rod.
[0014] A further technical solution is: a tube edge is arranged around the middle tube; a block groove is provided on the clamping block; and the tube edge is placed in the block groove.
[0015] A further technical solution is: sealing members are arranged on both sides of the tube edge; and the sealing members contact the inside of the block groove.
[0016] A further technical solution is: a pull rod is movably arranged inside the inner rod; the pull rod passes through the boss; an adjusting piece is threadedly connected to the pull rod; and the adjusting piece contacts the boss.
[0017] A further technical solution is: a third bearing is sleeved on the pull rod; a rod plate is arranged on the pull rod; the third bearing is placed on the inner rod; and the rod plate presses the third bearing.
[0018] A further technical solution is: a first groove is formed on the boss; the adjusting member is placed in the first groove; a second groove is formed on the third bearing; and the rod plate is placed in the second groove.
[0019] A further technical solution is: a ring is arranged on the inner rod; a notch is opened on the ring; a locking piece is threadedly connected to the ring; when the locking piece is tightened, the notch is narrowed.
[0020] Compared with the prior art, the beneficial technical effects of the utility model are as follows: (1) the middle cylinder is connected to the left end of the inner rod by rotation through the boss, and the right end of the middle cylinder is connected to the middle position of the inner rod by rotation, so as to limit the two positions of the inner rod and ensure the stable rotation of the inner rod; the middle cylinder is connected to the left end of the outer cylinder by rotation through the boss, and the right end of the outer cylinder is connected to the middle position of the middle cylinder by rotation, so as to limit the two positions of the outer cylinder and ensure the stable rotation of the outer cylinder; the stable rotation of the inner and outer cylinders enables the equipment to work stably; (2) the cylinder edge is placed in the block groove, and then the sealing member contacts the inner surface of the block groove to complete the sealing between the cylinder edge and the clamping block, and the magnetic sealing coupling is installed to avoid leakage; (3) the adjusting member is tightened, the adjusting member pulls the pull rod to the left, the rod plate presses the third bearing to the left, and the inner rod is tightened by the pull rod to prevent the inner rod from loosening; the adjusting member is placed in the first groove, and the rod plate is placed in the second groove to prevent the pull rod and the third bearing from being offset and affecting the rotation of the inner rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The schematic diagram of the structure of the magnetic sealing coupling of the first embodiment of the utility model is shown.
[0022] Figure 2The schematic diagram of the structure of the magnetic sealing coupling according to the second embodiment of the utility model is shown.
[0023] Markings in the accompanying drawings: 1, outer cylinder; 2, middle cylinder; 21, boss; 22, second bearing; 23, cylinder edge; 24, sealing member; 25, first groove; 3, inner rod; 31, pull rod; 32, adjusting member; 33, rod plate; 34, second groove; 35, ring member; 36, locking member; 37, third bearing; 4, first magnetic member; 5, second magnetic member; 6, first bearing; 7, clamping block; 71, block groove. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.
[0025] Figure 1 The structure diagram of the magnetic seal coupling of the first embodiment of the utility model is shown. Figure 1 As shown, the utility model discloses a magnetic sealing coupling.
[0026] The magnetic sealing coupling comprises an outer cylinder 1, a middle cylinder 2 rotatably arranged in the outer cylinder 1, an inner rod 3 rotatably arranged in the middle cylinder 2, a first magnetic member 4 arranged in the outer cylinder 1, and a second magnetic member 5 arranged in the inner rod 3.
[0027] The middle tube 2 is provided with a boss 21 in the direction of the outer tube 1 and the inner rod 3. The boss 21 is rotatably connected to the outer tube 1 and the inner rod 3 respectively.
[0028] The outer cylinder 1 and the middle cylinder 2 are arranged outside the device. The inner rod 3 extends into the device. The left end of the outer cylinder 1 is connected to the motor for driving. The middle cylinder 2 is fixedly connected to the device.
[0029] The outer cylinder 1 is arranged in the left and right directions. The middle cylinder 2 is placed inside the outer cylinder 1 from the right end of the outer cylinder 1. The inner rod 3 is placed inside the middle cylinder 2 from the right end of the middle cylinder 2. The right end of the outer cylinder 1 is rotatably connected to the middle position of the middle cylinder 2. The right end of the middle cylinder 2 is rotatably connected to the middle position of the inner rod 3.
[0030] A boss 21 is provided at the left end of the middle tube 2 in the left and right directions. The left end of the boss 21 is rotatably connected to the left end of the outer tube 1. The right end of the boss 21 is rotatably connected to the left end of the inner rod 3.
[0031] The first magnetic member 4 is arranged in the outer tube 1 in the left-right direction. The first magnetic member 4 is distributed around the outer surface of the middle tube 2. The second magnetic member 5 is arranged in the inner rod 3 in the left-right direction. The second magnetic member 5 is distributed around the inner surface of the middle tube 2.
[0032] Exemplarily, the device is a stirrer. The motor drives the outer cylinder 1 to rotate, and the inner rod 3 rotates through the magnetic force of the first magnetic member 4 and the second magnetic member 5. The outer cylinder 1 and the inner rod 3 are not in contact under the action of the magnetic force. The middle cylinder 2 is arranged between the outer cylinder 1 and the inner rod 3, and the middle cylinder 2 is installed on the device to avoid leakage of the medium in the device, thereby ensuring the sealing of the magnetic sealing coupling.
[0033] The middle cylinder 2 is rotatably connected to the left end of the inner rod 3 through the boss 21, and the right end of the middle cylinder 2 is rotatably connected to the middle position of the inner rod 3, completing the restriction of the two positions of the inner rod 3 and ensuring the stable rotation of the inner rod 3. The middle cylinder 2 is rotatably connected to the left end of the outer cylinder 1 through the boss 21, and the right end of the outer cylinder 1 is rotatably connected to the middle position of the middle cylinder 2, completing the restriction of the two positions of the outer cylinder 1 and ensuring the stable rotation of the outer cylinder 1. The stable rotation of the inner rod 3 and the outer cylinder 1 allows the device to work stably.
[0034] The magnetic seal coupling further comprises a first bearing 6. The first bearing 6 is arranged between the outer cylinder 1 and the middle cylinder 2, and between the middle cylinder 2 and the inner rod 3 respectively.
[0035] Second bearings 22 are respectively arranged at both ends of the boss 21. The second bearings 22 are respectively connected to the outer cylinder 1 and the inner rod 3.
[0036] Exemplarily, the first bearing 6 is a ball bearing. There are two sets of first bearings 6. One set of first bearings 6 is installed in the middle position of the middle cylinder 2, and the outer ring of one set of first bearings 6 is connected to the right end of the outer cylinder 1. Another set of first bearings 6 is installed in the middle position of the inner rod 3, and the outer ring of another set of first bearings 6 is connected to the right end of the middle cylinder 2.
[0037] Exemplarily, the second bearing 22 is a ball bearing. The second bearing 22 is in two groups. One group of second bearings 22 is mounted on the left end of the boss 21, and the outer ring of one group of second bearings 22 is connected to the left end of the outer cylinder 1. Another group of second bearings 22 is mounted on the right end of the boss 21, and the outer ring of another group of second bearings 22 is connected to the left end of the inner rod 3.
[0038] The magnetic sealing coupling also includes clamping blocks 7 clamped on both sides of the device. One side of the clamping block 7 is threadedly connected to the middle cylinder 2. The other side of the clamping block 7 is movably arranged on the inner rod 3.
[0039] Exemplarily, the clamp block 7 is annular. The clamp blocks 7 are in two groups. One side of the clamp block 7 is located outside the device. The other side of the clamp block 7 is located inside the device. The clamp blocks 7 are fixed and clamped by bolts.
[0040] The clamp block 7 on the other side is sleeved on the inner rod 3 and fixed in the device by bolts. The clamp block 7 on one side is rotated to adjust the position on the middle cylinder 2, and the clamp block 7 on one side presses the outer surface of the device.
[0041] A tube edge 23 is arranged around the middle tube 2. A block groove 71 is provided on the clamping block 7. The tube edge 23 is placed in the block groove 71.
[0042] The tube edge 23 is arranged on the end surface of the right end of the middle tube 2. The block groove 71 is provided on one side of the clamping block 7 close to the tube edge 23. When the clamping block 7 is clamped on both sides of the equipment, the tube edge 23 is placed in the block groove 71.
[0043] Seals 24 are provided on both sides of the barrel edge 23. The seals 24 contact the inside of the block groove 71.
[0044] Exemplarily, the seal 24 is a sealing ring. The seal 24 is arranged on the left and right sides of the barrel edge 23. When the barrel edge 23 is placed in the block groove 71, the seal 24 contacts the inner surface of the block groove 71.
[0045] The barrel edge 23 is placed in the block groove 71, and the seal 24 contacts the inner surface of the block groove 71 to complete the sealing between the barrel edge 23 and the clamping block 7, so as to avoid leakage after the magnetic sealing coupling is installed.
[0046] A ring member 35 is provided on the inner rod 3. A notch is provided on the ring member 35. A locking member 36 is threadedly connected to the ring member 35. When the locking member 36 is tightened, the notch is narrowed.
[0047] The ring 35 is arranged at the right end of the inner rod 3. The locking member 36 is threadedly connected to the ring 35 and passes through the gap. A mounting groove is provided on the right end surface of the inner rod 3. The stirring rod of the stirrer is installed in the mounting groove. After tightening the locking member 36, the gap is narrowed, and the ring 35 clamps the stirring rod.
[0048] Second embodiment:
[0049] Figure 2 The structure diagram of the magnetic seal coupling of the second embodiment of the utility model is shown. Figure 1 and Figure 2 As shown, a pull rod 31 is movably arranged in the inner rod 3. The pull rod 31 passes through the boss 21. The pull rod 31 is threadedly connected with an adjusting member 32. The adjusting member 32 contacts the boss 21.
[0050] The pull rod 31 is arranged in the left and right directions. The pull rod 31 passes through the boss 21 in the left and right directions. The right end of the pull rod 31 is movably connected to the inner rod 3. The adjusting member 32 is threadedly connected to the left end of the pull rod 31.
[0051] The pull rod 31 is sleeved with a third bearing 37. The pull rod 31 is provided with a rod plate 33. The third bearing 37 is placed on the inner rod 3. The rod plate 33 presses the third bearing 37.
[0052] Exemplarily, the third bearing 37 is a plane bearing. The rod plate 33 is arranged at the right end of the pull rod 31. The third bearing 37 prevents the rod plate 33 and the inner rod 3 from rubbing.
[0053] Tighten the adjusting member 32, the adjusting member 32 pulls the pull rod 31 to the left, the rod plate 33 presses the third bearing 37 to the left, and the inner rod 3 is tightened through the pull rod 31 to prevent the inner rod 3 from loosening.
[0054] The boss 21 has a first groove 25 , the adjusting member 32 is disposed in the first groove 25 , the third bearing 37 has a second groove 34 , and the rod plate 33 is disposed in the second groove 34 .
[0055] The first groove 25 is formed on the left end surface of the boss 21. The second groove 34 is formed on the right side of the third bearing 37. The adjusting member 32 is placed in the first groove 25, and the rod plate 33 is placed in the second groove 34 to prevent the pull rod 31 and the third bearing 37 from being offset and affecting the rotation of the inner rod 3.
[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.
[0057] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A magnetic sealing coupling, characterized in that: It comprises an outer cylinder (1), a middle cylinder (2) rotatably arranged in the outer cylinder (1), an inner rod (3) rotatably arranged in the middle cylinder (2), a first magnetic member (4) arranged in the outer cylinder (1), and a second magnetic member (5) arranged in the inner rod (3); The middle cylinder (2) is provided with a boss (21) in the direction of the outer cylinder (1) and the inner rod (3); the boss (21) is rotatably connected to the outer cylinder (1) and the inner rod (3) respectively.
2. The magnetic sealing coupling according to claim 1, characterized in that: It also includes a first bearing (6); the first bearing (6) is respectively arranged between the outer cylinder (1) and the middle cylinder (2), and between the middle cylinder (2) and the inner rod (3).
3. The magnetic sealing coupling according to claim 2, characterized in that: Second bearings (22) are respectively arranged at both ends of the boss (21); the second bearings (22) are respectively connected to the outer cylinder (1) and the inner rod (3).
4. The magnetic sealing coupling according to claim 1, characterized in that: It also includes clamping blocks (7) clamped on both sides of the device; the clamping block (7) on one side is threadedly connected to the middle tube (2); and the clamping block (7) on the other side is movably arranged on the inner rod (3).
5. The magnetic sealing coupling according to claim 4, characterized in that: A tube edge (23) is arranged around the middle tube (2); a block groove (71) is provided on the clamping block (7); and the tube edge (23) is placed in the block groove (71).
6. The magnetic sealing coupling according to claim 5, characterized in that: Sealing members (24) are arranged on both sides of the barrel edge (23); the sealing members (24) contact the inside of the block groove (71).
7. The magnetic seal coupling according to claim 1, characterized in that: A pull rod (31) is movably arranged inside the inner rod (3); the pull rod (31) passes through the boss (21); an adjusting piece (32) is threadedly connected to the pull rod (31); and the adjusting piece (32) contacts the boss (21).
8. The magnetic seal coupling according to claim 7, characterized in that: The pull rod (31) is sleeved with a third bearing (37); a rod plate (33) is arranged on the pull rod (31); the third bearing (37) is placed on the inner rod (3); and the rod plate (33) presses the third bearing (37).
9. The magnetic seal coupling according to claim 8, characterized in that: The boss (21) is provided with a first groove (25); the adjusting member (32) is placed in the first groove (25); the third bearing (37) is provided with a second groove (34); and the rod plate (33) is placed in the second groove (34).
10. The magnetic seal coupling according to claim 1, characterized in that: A ring member (35) is arranged on the inner rod (3); a notch is provided on the ring member (35); a locking member (36) is threadedly connected to the ring member (35); when the locking member (36) is tightened, the notch is narrowed.