Stirring device of homogenizer

Abstract

The invention discloses a homogenizer stirring device which comprises a first mounting plate, a fixed cutting arm, a connecting cylinder, a second mounting plate, a driving motor and a cutting head, a first through hole is formed in the first mounting plate, the fixed cutting arm is fixed outside the first through hole and used for penetrating into a reaction kettle, a circular containing through hole is formed in the fixed cutting arm, and a second through hole is formed in the second mounting plate. A plurality of first circulating holes and a plurality of second circulating holes are formed in the fixed cutting arm at intervals, the connecting cylinder is arranged on the bottom surface of the first mounting plate, the second mounting plate is arranged on the bottom surface of the connecting cylinder, a second through hole is formed in the second mounting plate, and a rotating shaft of the driving motor penetrates through the second through hole, the connecting cylinder and the first through hole; the cutting head is rotationally arranged in the containing through hole and detachably connected with the rotating shaft, and a plurality of cutters are arranged on the outer wall of the cutting head at intervals. Through the mode, the stirring device of the homogenizer disclosed by the invention is convenient to disassemble, assemble and replace the cutting head, can adapt to different working environments according to different materials, more accurately crushes and shears the materials, and is lower in maintenance cost.

Description

Technical Field

[0001] The invention relates to the technical field of homogenizers, in particular to a homogenizer stirring device. Background Art

[0002] Homogenizers mainly use a pressure system to extrude, extend, impact and crush materials, relying on cavitation effect and turbulence effect to achieve homogenization. During the homogenization process, a laminar flow effect is produced, and dispersed particles or droplets are sheared and extended. Homogenizers are mainly used in important fields such as biotechnology, medicine, food industry, cosmetics industry, petrochemical industry, etc.

[0003] However, the homogenizers currently on the market can usually only stir and homogenize the materials in the reactor, and the homogenization effect is relatively poor. In addition, the blades are fixed and cannot be replaced, and they cannot adapt to different materials. At the same time, the sealing effect is also poor, which makes it easy for the homogenized emulsion to leak out. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a homogenizer stirring device that can solve the above technical problems.

[0006] (2) Technical solution

[0007] To solve the above technical problems, the present invention provides the following technical solution: A homogenizer stirring device, characterized in that it includes: a first mounting plate, which is circular and is used to be set at the bottom of a reactor, wherein the first mounting plate is provided with a first through hole; a fixed cutting arm, which is cylindrical and fixedly arranged outside the first through hole on the top surface of the mounting plate and is used to pass through the reactor, wherein the fixed cutting arm is provided with a circular receiving through hole, and a plurality of first flow holes are arranged at intervals at the top end of the fixed cutting arm, and a plurality of second flow holes are arranged at intervals at the bottom end of the fixed cutting arm; a connecting cylinder, one end of which is provided on the bottom surface of the first mounting plate; a second mounting plate, which is provided at the other end of the connecting cylinder, wherein the second mounting plate is provided with a second through hole; a driving motor, whose rotating shaft passes through the second through hole of the second mounting plate, the connecting cylinder and the first through hole of the first mounting plate; a cutting head, which is rotatably arranged in the receiving through hole and is detachably connected to the rotating shaft of the driving motor, wherein a plurality of cutting knives are arranged at intervals on the outer wall of the cutting head, and the end of the cutting knives away from the cutting head is clearance-matched with the inner wall of the receiving through hole of the fixed cutting arm.

[0008] Preferably, the cutting head includes: a fixing ring, which is in a circular shape and is located in the receiving through hole, wherein a third through hole in a circular shape is provided in the fixing ring, and the multiple cutters are arranged at intervals on the outer wall of the fixing ring; a transfer piece, which is in a circular shape and is arranged in the third through hole, wherein the transfer piece is extended with an extension column located in the first through hole, and a fourth through hole in a circular shape is provided in the transfer piece, and the fourth through hole passes through the extension column and the transfer piece; a mounting column, which is detachably arranged in the fourth through hole; wherein the rotating shaft of the drive motor is provided with a threaded hole, and the mounting column passes through the fourth through hole and is threadedly connected to the threaded hole.

[0009] Preferably, a plurality of retaining structures are provided at intervals on the outer wall of the fixing ring, and the cutter is detachably provided on the retaining structures of the fixing ring.

[0010] Preferably, a first internal thread is provided in the third through hole of the fixing ring, a first external thread is provided on the outer wall of the transfer part and is threadedly connected to the first internal thread, a second internal thread is provided in the fourth through hole of the transfer part, and a second external thread is provided on the outer wall of the mounting column and is threadedly connected to the second internal thread.

[0011] Preferably, the extension column is annular, wherein the outer diameter of the extension column is smaller than the outer diameter of the transfer component, and the outer diameter of the extension column is equal to the aperture of the first through hole.

[0012] Preferably, the cutter is rectangular, wherein the height of the cutter is equal to the depth of the receiving through hole, and the depth of the receiving through hole is greater than the height of the fixing ring.

[0013] Preferably, the top end of the rotating shaft of the drive motor is in the first through hole, a first sealing ring is provided between the outer wall of the rotating shaft of the drive motor and the inner wall of the first through hole, and a second sealing ring is provided between the outer wall of the extension column and the inner wall of the first through hole.

[0014] Preferably, the first circulation hole is circular, and the second circulation hole is strip-shaped, wherein the width of the second circulation hole in the vertical direction is equal to the width of the first circulation hole in the vertical direction.

[0015] Preferably, a cooling structure for cooling the rotating shaft of the drive motor is provided in the connecting cylinder.

[0016] Preferably, the cooling structure includes a first sealed bearing sealed at the top end of the inner cavity of the connecting tube, a second sealed bearing sealed at the bottom end of the inner cavity of the connecting tube, a water inlet interface arranged at the bottom end of the connecting tube and connected to the inner cavity of the connecting tube, a water outlet interface arranged at the top end of the connecting tube and connected to the inner cavity of the connecting tube, a first tube body connected to the water inlet interface, a second tube body connected to the water outlet interface and a heat exchanger, wherein the water outlet of the heat exchanger is connected to the first tube body, the water inlet of the heat exchanger is connected to the second tube body, and the rotating shaft seal of the drive motor is passed through the inner ring of the first sealed bearing and the inner ring of the second sealed bearing.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a homogenizer stirring device with the following beneficial effects: the homogenizer stirring device disclosed in the present invention includes a first mounting plate, a fixed cutting arm, a connecting tube, a second mounting plate, a driving motor and a cutting head, wherein the first mounting plate is provided with a first through hole, the fixed cutting arm is fixed outside the first through hole and is used to pass through the reactor, the fixed cutting arm is provided with a circular receiving through hole, the fixed cutting arm is provided with a plurality of first circulation holes and a plurality of second circulation holes at intervals, the connecting tube is provided on the bottom surface of the first mounting plate, the second mounting plate is provided on the bottom surface of the connecting tube, the second mounting plate is provided with a second through hole, the rotating shaft of the driving motor passes through the second through hole, the connecting tube and the first through hole, the cutting head rotates in the receiving through hole and is detachably connected to the rotating shaft, and a plurality of cutting knives are provided at intervals on the outer wall of the cutting head. In the above manner, the homogenizer stirring device disclosed in the present invention is easy to be mechanically disassembled and sealed, and at the same time, the appropriate cutting head can be replaced for different materials in different working environments, so that the material can be crushed and sheared more accurately, making the maintenance cost lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the homogenizer stirring device of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the first structure of the center cutting head;

[0021] Figure 3 for Figure 1 A schematic diagram of the first partial structure of the medium-quality machine stirring device;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the middle drive motor;

[0023] Figure 5 for Figure 1 A second structural schematic diagram of the center cutting head;

[0024] Figure 6 for Figure 1 Schematic diagram of the cross-section structure of the center cutting head;

[0025] Figure 7 for Figure 1 Schematic diagram of the structure of the middle connecting tube. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-7 As shown, the homogenizer stirring device disclosed in the present invention includes a first mounting plate 1, a fixed cutting arm 2, a connecting tube 3, a second mounting plate 4, a driving motor 5 and a cutting head 6.

[0028] The first mounting plate 1 is circular and is used to be installed at the bottom of the reactor, wherein a first through hole 11 is provided in the first mounting plate 1. It should be understood that the first mounting plate 1 can be sealed and installed at the bottom of the reactor by welding or threaded connection.

[0029] The fixed cutting arm 2 is cylindrical and is fixedly arranged outside the first through hole 11 on the top surface of the mounting plate and is used to pass through the reactor. That is, the fixed cutting arm 2 is accommodated at the bottom of the reactor cavity.

[0030] In this embodiment, the fixed cutting arm 2 is provided with a circular receiving through hole, wherein a plurality of first flow holes 21 are provided at intervals at the top end of the fixed cutting arm 2 , and a plurality of second flow holes 22 are provided at intervals at the bottom end of the fixed cutting arm 2 .

[0031] Preferably, the first circulation hole 21 is circular, and the second circulation hole 22 is strip-shaped, wherein the width of the second circulation hole 22 along the vertical direction is equal to the width of the first circulation hole 21 along the vertical direction.

[0032] It can be understood that during homogenization, the material (such as emulsion) in the inner cavity of the reactor enters the receiving through hole 21 from the multiple first flow holes 22 on the fixed cutting arm 2 at the bottom of the reactor. After being stirred and cut in the fixed cutting arm 2, the material flows back into the inner cavity of the reactor from the long strip-shaped second flow hole 23 at the bottom end of the fixed cutting arm 2. This reciprocating cycle can make the emulsion more fine and uniform.

[0033] One end of the connecting tube 3 is arranged on the bottom surface of the first mounting plate 1. It should be understood that one end of the connecting tube 3 is surrounded by the outside of the first through hole 11.

[0034] The second mounting plate 4 is arranged at the other end of the connecting tube 3, wherein a second through hole 41 is provided in the second mounting plate 4. Similarly, the other end of the connecting tube 3 is surrounded by the outside of the second through hole 41.

[0035] The rotating shaft 51 on the driving motor 5 is rotatably inserted into the second through hole 41 of the second mounting plate 4 , the connecting tube 3 and the first through hole 11 of the first mounting plate 1 .

[0036] Furthermore, a cooling structure for cooling the rotating shaft 51 of the driving motor 5 is provided in the connecting cylinder 3 .

[0037] Preferably, the cooling structure includes a first sealed bearing 31 sealed at the top of the inner cavity of the connecting cylinder 3, a second sealed bearing 32 sealed at the bottom of the inner cavity of the connecting cylinder 3, a water inlet interface 33 arranged at the bottom end of the connecting cylinder 3 and connected to the inner cavity of the connecting cylinder 3, a water outlet interface 34 arranged at the top of the connecting cylinder 3 and connected to the inner cavity of the connecting cylinder 3, a first tube body connected to the water inlet interface 33, a second tube body connected to the water outlet interface 34 and a heat exchanger, wherein the water outlet of the heat exchanger is connected to the first tube body, the water inlet of the heat exchanger is connected to the second tube body, and the rotating shaft 51 of the drive motor 5 is sealed and passed through the inner ring of the first sealed bearing 31 and the inner ring of the second sealed bearing 32.

[0038] It can be understood that the rotation speed required by the homogenizer is generally faster, so the rotating shaft 51 of the drive motor 5 will often generate heat during the operation of the homogenizer. The homogenizer stirring device can input cold water into the connecting cylinder 3, so that the temperature of the rotating shaft 51 can be taken away by the cold water in the connecting cylinder 3. After the heat of the rotating shaft 51 is absorbed, the water body will spontaneously rise to the water outlet interface 34 at the top of the connecting cylinder 3 due to its own temperature rise, and then be transported to the heat exchanger by the water outlet interface 34 for heat exchange. Then, the cold water after heat exchange will re-enter the inner cavity of the connecting cylinder 3 from the water inlet interface 33 at the bottom end of the connecting cylinder 3, so the rotating shaft 51 is not prone to malfunction.

[0039] The first sealed bearing 31 and the second sealed bearing 32 can prevent the water in the connecting tube 3 from flowing out or external liquid from seeping into the connecting tube 3 even when the rotating shaft 51 is rotating, and can also make the rotating shaft 51 rotate more smoothly.

[0040] The cutting head 6 is rotatably set in the receiving hole and is detachably connected to the rotating shaft 51 of the driving motor 5, wherein a plurality of cutters 61 are arranged at intervals on the outer wall of the cutting head 6, and the end of the cutter 61 away from the cutting head 6 is gap-fitted with the inner wall of the receiving hole of the fixed cutting arm 2.

[0041] In the actual production process, different cutting heads 6 can be replaced according to the cutter required by the actual material (such as Figure 2 The cutting head is replaced with Figure 5 Cutting head), in this way, a cutting head 6 that can crush the material with higher precision can be selected for different materials, and the high-speed rotation of the rotating shaft 51 can drive the cutting head 6 to rotate, so that the cutting head 6 stirs the material in the fixed cutting arm 2, and the cutter 61 cuts and crushes the material during rotation, and the gap between the cutter 61 and the inner wall of the fixed cutting arm 2 can better homogenize the material, so that the material can be crushed more evenly, and the cut material can also be homogenized more evenly.

[0042] Furthermore, the cutting head 6 includes a fixing ring 62 , a transfer member 63 and a mounting post 64 .

[0043] The retaining ring 62 is annular and located within the receiving through-hole. A third through-hole is defined within the retaining ring 62, and a plurality of cutters 61 are spaced apart on the outer wall of the retaining ring 62. It should be understood that the third through-hole surrounds the outside of the first through-hole 11, and the outer diameter of the third through-hole is larger than that of the first through-hole 11.

[0044] The transfer member 63 is annular and is arranged in the third through hole, wherein the transfer member 63 is extended with an extension column 631 located in the first through hole 11, and a fourth through hole 632 in an annular shape is provided in the transfer member 63, and the fourth through hole 632 passes through the extension column 631 and the transfer member 63.

[0045] Furthermore, the extension column 631 is annular, wherein the outer diameter of the extension column 631 is smaller than the outer diameter of the transfer member 63 and equal to the aperture of the first through hole 11. It should be understood that the extension column 631 is located at the center of the transfer member 63.

[0046] It can be understood that the outer diameter of the transfer member 63 is the same as the inner diameter of the third through hole, and the aperture of the first through hole 11 and the outer diameter of the extension column 631 are equal. Therefore, the transfer member 63 and the first through hole 11 are concentric, and only the extension column 631 is in the first through hole 11, and the transfer member 63 is not in the first through hole 11. Since the transfer member 63 is in the fixing ring 62 and the outer diameter of the transfer member 63 is larger than the aperture of the first through hole 11, the horizontal position of the transfer member 63 will not move.

[0047] The mounting post 64 is removably disposed within the fourth through hole 632. It should be understood that the mounting post 64 also limits the vertical position of the transfer member 63, preventing the transfer member 63 from shifting when the cutting head 6 is rotated by the rotating shaft 51. Furthermore, the vertical length of the mounting post 64 is greater than the vertical length of the fourth through hole 632.

[0048] Furthermore, a first internal thread is provided in the third through hole of the fixing ring 62, a first external thread is provided on the outer wall of the transfer part 63 and is threadedly connected to the first internal thread, a second internal thread is provided in the fourth through hole 632 of the transfer part 63, and a second external thread is provided on the outer wall of the mounting column 64 and is threadedly connected to the second internal thread.

[0049] Furthermore, the rotating shaft 51 of the driving motor 5 is provided with a threaded hole 511 , and the mounting post 64 passes through the fourth through hole 632 and is threadedly connected to the threaded hole 511 .

[0050] That is to say, the transfer member 63 can be removed from the fixing ring 62 or installed into the third through hole of the fixing ring 62 by means of a threaded detachable connection, and one end of the mounting column 64 can be threadedly detachably connected to the threaded hole 511 in the rotating shaft 51, so that the transfer member 63 can be limited by the other end of the mounting column 64.

[0051] Furthermore, a plurality of retaining structures are provided at intervals on the outer wall of the fixed ring 62, and the cutter 61 is detachably provided on the retaining structure of the fixed ring 62. In other words, the cutter 61 can be added to the retaining structure of the fixed ring 62 at a later stage, or the cutter 61 can be removed from the retaining structure, so as to further meet the refined processing of different materials in the production stage (for example, large-particle materials can be quickly crushed by reducing the number of cutters 61 to accommodate more materials; if it is a small-particle material or an emulsion, the number of cutters 61 can be further increased to crush and homogenize the material more evenly and finely), thereby making the stirring device adaptable to more working environments. Specifically, the retaining structure is a retaining column provided at the bottom of the outer wall of the fixed ring 62 and extending upward, and the cutter 61 is provided with a retaining hole, wherein the retaining column is passed through and retained in the retaining hole. In addition, a first magnet is provided at the top of the locking column, and the inner wall of the locking hole is coated with a second magnet layer in sheet shape for attracting the first magnet (the second magnet layer is preferably arranged at the top of the locking hole, so that when the locking column is inserted into the locking hole, the first magnet and the second magnet layer are attracted to each other), so that when the locking column is inserted into the locking column, the second magnet layer surrounds the locking column, so that the locking column is stably set in the locking hole.

[0052] In some other embodiments, the cutter 61 may include a first cutter, a second cutter, a third cutter and a fourth cutter, wherein the distance between an end face of the first cutter away from the fixed ring 62 and the inner wall of the fixed cutting arm 2, the distance between an end face of the second cutter away from the fixed ring 62 and the inner wall of the fixed cutting arm 2, the distance between an end face of the third cutter away from the fixed ring 62 and the inner wall of the fixed cutting arm 2, and the distance between an end face of the fourth cutter away from the fixed ring 62 and the inner wall of the fixed cutting arm 2 are all different, so that the material can be ground and cut by the first cutter, the second cutter, the third cutter and the fourth cutter to perform other operations on granular materials of different sizes.

[0053] Preferably, the cutter 61 is rectangular, wherein the height of the cutter 61 is equal to the depth of the receiving through hole, and the depth of the receiving through hole is greater than the height of the fixing ring 62. Of course, in other embodiments (such as Figure 5 As shown), the cutter 61 can be in other shapes, such as arc, triangle, etc., and the appropriate cutter 61 can be selected according to the material.

[0054] Furthermore, in order to improve the stirring effect, a plurality of conical needles are arranged at intervals on both sides of the cutter 61, so that the cutter 61 can specifically crush and stir the bulk material through the needles when rotating.

[0055] Furthermore, the top end of the rotating shaft 51 of the drive motor 5 is located within the first through hole 11. A first sealing ring is disposed between the outer wall of the rotating shaft 51 of the drive motor 5 and the inner wall of the first through hole 11, and a second sealing ring is disposed between the outer wall of the extension column 631 and the inner wall of the first through hole 11. It should be understood that since the homogenizer can also be used to homogenize emulsions, the first and second sealing rings can prevent the emulsion from leaking out of the first through hole 11.

[0056] Specific working principle:

[0057] First, select the appropriate cutting head 6 according to the type of material and install it in the receiving hole of the fixed cutting arm 2, then connect the first mounting plate 1 to the bottom of the reactor, and then start the driving motor 5 to make the rotating shaft 51 drive the cutting head 6 to rotate, so that multiple cutters 61 cut and crush the material in the reactor, and make the cut material homogenized under the action of the rotating force. In this process, the heat generated by the high-speed rotation of the rotating shaft 51 will be transported by the heat exchanger to the cold water in the connecting cylinder 3 and taken away, so that the rotating shaft 51 can work for a long time.

[0058] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

Claims

1. A homogenizer stirring device, characterized in that, include: a first mounting plate, which is circular and is used to be arranged at the bottom of the reactor, wherein a first through hole is provided in the first mounting plate; a fixed cutting arm, which is cylindrical and fixedly arranged outside the first through hole on the top surface of the mounting plate and is used to pass through the reactor, wherein the fixed cutting arm is provided with a circular receiving through hole, and a plurality of first flow holes are provided at intervals on the top end of the fixed cutting arm, and a plurality of second flow holes are provided at intervals on the bottom end of the fixed cutting arm; a connecting tube, one end of which is arranged on the bottom surface of the first mounting plate; a second mounting plate, disposed at the other end of the connecting tube, wherein the second mounting plate is provided with a second through hole; A driving motor, wherein a rotating shaft thereof passes through the second through hole of the second mounting plate, the connecting cylinder, and the first through hole of the first mounting plate; The cutting head is rotatably arranged in the receiving hole and is detachably connected to the rotating shaft of the driving motor, wherein a plurality of cutters are arranged at intervals on the outer wall of the cutting head, and the end of the cutter away from the cutting head is gap-matched with the inner wall of the receiving hole of the fixed cutting arm.

2. The homogenizer stirring device according to claim 1, characterized in that The cutting head comprises: A fixing ring in an annular shape is located in the receiving through hole, wherein a third through hole in an annular shape is provided in the fixing ring, and the plurality of cutters are spaced apart and arranged on the outer wall of the fixing ring; a transfer member in an annular shape, disposed in the third through hole, wherein the transfer member is provided with an extension column disposed in the first through hole, and a fourth annular through hole is provided in the transfer member, the fourth through hole passing through the extension column and the transfer member; a mounting post, detachably disposed in the fourth through hole; Wherein, the rotating shaft of the driving motor is provided with a threaded hole, and the mounting post passes through the fourth through hole and is threadedly connected to the threaded hole.

3. The homogenizer stirring device according to claim 2, characterized in that The outer wall of the fixing ring is provided with a plurality of clamping structures at intervals, and the cutter is detachably provided on the clamping structures of the fixing ring.

4. The homogenizer stirring device according to claim 2, characterized in that A first internal thread is provided in the third through hole of the fixing ring, a first external thread is provided on the outer wall of the transfer member and is threadedly connected to the first internal thread, a second internal thread is provided in the fourth through hole of the transfer member, and a second external thread is provided on the outer wall of the mounting column and is threadedly connected to the second internal thread.

5. The homogenizer stirring device according to claim 2, characterized in that: The extension column is annular, wherein the outer diameter of the extension column is smaller than the outer diameter of the transfer component, and the outer diameter of the extension column is equal to the aperture of the first through hole.

6. The homogenizer stirring device according to claim 2, characterized in that: The cutter is rectangular in shape, wherein the height of the cutter is equal to the depth of the receiving through hole, and the depth of the receiving through hole is greater than the height of the fixing ring.

7. The homogenizer stirring device according to claim 2, characterized in that: The top end of the rotating shaft of the driving motor is located in the first through hole, a first sealing ring is provided between the outer wall of the rotating shaft of the driving motor and the inner wall of the first through hole, and a second sealing ring is provided between the outer wall of the extension column and the inner wall of the first through hole.

8. The homogenizer stirring device according to claim 2, characterized in that: The first circulation hole is circular in shape, and the second circulation hole is strip-shaped, wherein a width of the second circulation hole in the vertical direction is equal to a width of the first circulation hole in the vertical direction.

9. The homogenizer stirring device according to claim 2, characterized in that: The connecting cylinder is provided with a cooling structure for cooling the rotating shaft of the driving motor.

10. The homogenizer stirring device according to claim 9, characterized in that: The cooling structure includes a first sealed bearing sealed at the top end of the inner cavity of the connecting tube, a second sealed bearing sealed at the bottom end of the inner cavity of the connecting tube, a water inlet interface arranged at the bottom end of the connecting tube and connected to the inner cavity of the connecting tube, a water outlet interface arranged at the top end of the connecting tube and connected to the inner cavity of the connecting tube, a first tube body connected to the water inlet interface, a second tube body connected to the water outlet interface and a heat exchanger, wherein the water outlet of the heat exchanger is connected to the first tube body, the water inlet of the heat exchanger is connected to the second tube body, and the rotating shaft seal of the drive motor is passed through the inner ring of the first sealed bearing and the inner ring of the second sealed bearing.

Images