Integral bearing seat and its processing technology

Abstract

The present invention discloses an integral bearing seat and a processing technology thereof, which relates to the technical field of sand mill bearing seats, including a fixed end cover, a movable end cover, a transmission shaft and a sealing assembly. The present invention also discloses a processing technology of an integral bearing seat, including the following steps: parts processing, parts assembly and product testing. The present invention arranges a fixed end cover and a movable end cover, and a sealing assembly is arranged in the middle of the movable end cover. The three-level sealing ring inside the sealing assembly can achieve the sealing between the sealing assembly and the transmission shaft, the two-level sealing ring inside the sealing assembly can achieve the sealing between the sealing assembly and the movable end cover, and the one-level sealing ring inside the sealing assembly can achieve the sealing between the stuffing seat and the sealing seat. By sealing between the sealing assembly and the transmission shaft, between the sealing assembly and the movable end cover, and between the stuffing seat and the sealing seat, the sealing effect of the bearing seat is ensured, and the service life of the bearing seat is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand mill accessories, in particular to an integral bearing seat and a processing technology thereof. Background Art

[0002] Sand mill is one of the important equipment for wet grinding in the market. The bearing seat is a necessary component to support the rotating shaft in the sand mill. As an indispensable component in the sand mill, the bearing seat has a very important influence on the normal operation of the sand mill. The bearing seat must not only ensure the sealing of the rotating shaft during the operation of the sand mill, but also ensure the stable support of the rotating shaft.

[0003] A centering bearing seat for a nano sand mill with publication number CN210978239U comprises a body, a bearing is arranged in the body, end covers are arranged on both axial sides of the bearing, the end covers are fixedly connected to the body, three pressure blocks are evenly arranged on the inner wall of the body corresponding to the bearing, the pressure blocks are connected to the clamping screws, the clamping screws are threadedly connected to the body and one end is arranged outside the body, and the three pressure blocks cooperate to clamp and fix the bearing; a positioning groove is arranged on the end cover on one side of the machine seal, a positioning tube is arranged between the positioning groove and the machine seal, a positioning convex portion is arranged at one end of the positioning tube, the positioning convex portion cooperates with the positioning groove for radial positioning, and the other end of the positioning tube is fixedly connected to the machine seal. The above technical scheme can adaptively adjust the machine seal, the rotating shaft and the bearing seat to be on the same axis, thereby improving the service life.

[0004] The sand mill bearing seat involved in the above technical solution has limited sealing effect on the sand mill shaft in actual application. When the shaft rotates at high speed, external dust or fluid can easily enter the bearing seat through the connection gap of the bearing seat or follow the shaft, making it difficult to ensure the sealing of the sand mill shaft when it rotates. Moreover, the wear condition of its internal parts can only be understood by regularly disassembling the bearing seat. Sometimes, there is no wear inside the bearing seat, but it is still disassembled and inspected regularly. Such frequent disassembly and assembly operations will cause unnecessary damage to the bearing seat and increase the workload of the staff.

[0005] Therefore, it is necessary to invent an integral bearing seat and a processing technology thereof to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an integral bearing seat and a processing technology thereof to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an integral bearing seat, comprising a fixed end cover, which comprises a fixed seat, a fixed flange is fixedly arranged on one side of the fixed seat, and the fixed end cover can fix the bearing seat;

[0008] A transmission shaft is provided through the middle of the fixing seat;

[0009] Also includes:

[0010] A movable end cover, comprising a movable seat, a movable flange is fixedly arranged on one side of the movable seat, a connecting sleeve is fixedly arranged in the middle of the outer side of the movable seat, a plurality of slots are arranged around the middle of the inner side wall of the movable seat, a card slot is arranged in the middle of the slot, a positioning plate is arranged inside the movable seat, and a plurality of plug blocks corresponding to the slots are arranged around the outer side of the positioning plate, an extrusion spring is arranged on the outer side of the positioning plate, and the movable end cover cooperates with the fixed end cover to limit the transmission shaft and seal the bearing seat;

[0011] A sealing assembly, comprising a movable sleeve, wherein the movable sleeve is sleeved on the transmission shaft and plugged on one end of the connecting sleeve, and the sealing assembly can seal the outer side of the movable end cover;

[0012] The auxiliary component is arranged inside the movable end cover, which can monitor the wear of the internal parts of the bearing seat and send feedback and prompts to the outside world in time when the parts are worn.

[0013] Preferably, the auxiliary component comprises a first air storage part, a second air storage part, a three-way joint and a ball, the first air storage part is fixedly arranged in the positioning plate, and the outer side of the first air storage part abuts against the extrusion spring, the second air storage part is fixedly arranged in the plug block, and the top of the second air storage part penetrates to the top of the plug block, the top of the movable seat is provided with a first branch pipe, the three-way joint is arranged at the top of the first branch pipe, and the ball is arranged in the three-way joint;

[0014] A first air channel is provided inside the positioning plate, the bottom end of the first air channel is connected to the first air storage part, the top end of the first air channel is connected to the second air storage part, and a second air channel is provided inside the movable seat, the bottom end of the second air channel extends to the top of the second air storage part, and the top end of the second air channel is connected to the first branch pipe.

[0015] Preferably, a second branch pipe and a third branch pipe are respectively provided on both sides of the top of the tee joint, and the second branch pipe passes through the fixed flange and the movable flange, the second branch pipe and the third branch pipe are at the same horizontal height, and the heights of the connecting positions of the second branch pipe, the third branch pipe and the tee joint are higher than the height of the horizontal center line of the ball when it is at the highest position in the tee joint, so that the ball can move downward under the action of the pressure in the second branch pipe and / or the third branch pipe.

[0016] Preferably, a locking sleeve is fixedly provided on the inner side of the movable sleeve, a locking bolt is penetrated through the screw hole opened on the outer side of the locking sleeve, a sealing sleeve is provided on the inner side of the locking sleeve, a sealing seat is provided on the inner side of the sealing sleeve, an annular seat is fixedly provided on the inner side of the sealing seat, a packing seat is sleeved on the outer side of the annular seat, and a clearance fit is formed between the packing seat and the annular seat, a primary sealing ring is provided on the outer side of the packing seat, a packing frame is fixedly provided on the inner side of the packing seat, and the packing frame is provided on one side of the extrusion spring.

[0017] Preferably, a filling groove is provided on the outer side of the filling frame, and a secondary sealing ring is provided inside the filling groove.

[0018] Preferably, the outer side wall of the locking sleeve is provided with two arc-shaped mounting grooves, the outer side wall of the sealing sleeve is provided with two adapting grooves corresponding to the mounting grooves, the outer side of the sealing seat is fixedly provided with two mounting blocks corresponding to the mounting grooves, the inner side wall of the sealing sleeve is provided with a filling groove of an annular structure, a three-stage sealing ring is provided inside the filling groove, and the three-stage sealing ring is sleeved on the transmission shaft.

[0019] Preferably, a groove with an annular structure is provided in the middle part of the inner side wall of the fixed seat, a plurality of "L"-shaped blocks are arranged around the notch of the groove, and the blocks correspond to the groove, a limiting groove with an annular structure is provided at the bottom of the groove, a limiting seat with an annular structure is arranged inside the groove, and the inner side of the limiting seat is located in the limiting groove, a limiting ring is fixedly arranged on the inner side of the limiting seat, and the side surface of the limiting ring is arranged as a smooth surface, a ball bearing is arranged in the middle part of the outer side of the fixed seat, and the ball bearing is sleeved on the outside of the transmission shaft.

[0020] Preferably, an extension ring is fixedly provided in the middle of one side of the limiting seat close to the movable seat, an inner sealing ring is sleeved on the outer side of the extension ring, and the inner sealing ring corresponds to the movable seat, and a support is fixedly provided at the bottom end of the outer wall of the fixed seat.

[0021] Preferably, an inner ring groove is formed on the outer side of the positioning plate, an outer ring groove is formed on the inner side wall of the movable seat, a compression sealing ring is provided between the inner ring groove and the outer ring groove, and an outer sealing ring is provided between the fixed seat and the movable seat.

[0022] The processing technology of the integral bearing seat includes the following steps:

[0023] Step 1: Parts processing: processing the fixed end cover, movable end cover, transmission shaft and sealing assembly by die casting, injection molding and other processing methods;

[0024] Step 2: Assemble the parts. First, assemble the sealing assembly with the transmission shaft. Then assemble the transmission shaft, the sealing assembly with the movable end cover. Finally, install the movable end cover on one side of the fixed end cover to complete the assembly of the bearing seat.

[0025] Step 3: Product testing: fix the end cover in place with bolts, then test the sealing between the sealing assembly and the transmission shaft, and test the rotation of the transmission shaft under load. After the product passes the test, all processing of the product is completed.

[0026] Technical effects and advantages of the present invention:

[0027] 1. The present invention provides a fixed end cover and a movable end cover, and a sealing assembly is provided in the middle of the movable end cover. The three-stage sealing ring inside the sealing assembly can achieve sealing between the sealing assembly and the transmission shaft, the two-stage sealing ring inside the sealing assembly can achieve sealing between the sealing assembly and the movable end cover, and the one-stage sealing ring inside the sealing assembly can achieve sealing between the stuffing seat and the sealing seat. By sealing between the sealing assembly and the transmission shaft, between the sealing assembly and the movable end cover, and between the stuffing seat and the sealing seat, the sealing effect of the bearing seat is guaranteed, thereby ensuring that the material in the grinding chamber will not enter the interior of the bearing seat.

[0028] 2. The present invention arranges an extrusion spring, a first air storage part, a second air storage part, a three-way joint, a ball, a first air channel and a second air channel, so that when the internal parts of the bearing seat are worn to a certain extent, the second branch pipe and the third branch pipe are automatically switched to a connected state, and the fluid in the grinding chamber will automatically flow from the second branch pipe to the outside, thereby timely and obviously feeding back and prompting the staff the signal of wear inside the bearing seat, and reflecting the degree of wear inside the bearing seat by the flow rate of the fluid flowing to the outside, providing a reference for the staff whether it is necessary to disassemble and maintain the bearing seat, so that the staff can determine whether it is necessary to disassemble and assemble the bearing seat only by observing the feedback provided by the bearing seat, without the need to disassemble and assemble the bearing seat regularly, thereby avoiding unnecessary wear on the bearing seat due to frequent disassembly and assembly, extending the service life of the bearing seat, and reducing the work intensity of the staff.

[0029] 3. The present invention connects the left end of the second branch pipe with external high-pressure gas, which can make the contact between the various components in the bearing seat closer, thereby improving the movement stability between the various components inside the bearing seat. At the same time, the high-pressure gas introduced into the grinding chamber can improve the mixing uniformity between the material and the medium, and increase the collision probability and strength between the material and the medium, thereby further improving the grinding effect.

[0030] 4. The present invention uses the high-pressure fluid in the grinding chamber to move the ball downward, thereby connecting the second branch pipe, the three-way joint and the third branch pipe, and discharging the pressure fluid to the outside, thereby achieving the effect of automatic pressure relief in the grinding chamber, thereby promptly eliminating possible safety hazards and ensuring the safety of the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0033] Figure 3 It is a schematic diagram of the fixed end cover structure of the present invention.

[0034] Figure 4 It is a schematic diagram of the fixing seat structure of the present invention.

[0035] Figure 5 It is a schematic diagram of the movable end cover structure of the present invention.

[0036] Figure 6 It is a schematic diagram of the positioning plate structure of the present invention.

[0037] Figure 7 It is a schematic diagram of the structure of the transmission shaft and the sealing assembly of the present invention.

[0038] Figure 8 It is an exploded view of the sealing component structure of the present invention.

[0039] Fig. 9 It is an exploded view of the overall structure of the present invention.

[0040] Fig.10 It is a schematic diagram of the position of the auxiliary components of the present invention.

[0041] Fig.11 It is a schematic cross-sectional view of the auxiliary component of the present invention.

[0042] Fig.12 For the present invention Fig.11 Enlarged structural diagram at A in the middle.

[0043] Fig.13 This is a schematic diagram of the position of the first gas storage unit of the present invention.

[0044] Fig.14 For the present invention Fig.13 Enlarged structural diagram at B in the middle.

[0045] Fig.15 It is a schematic diagram of the state of the auxiliary components of the present invention when no wear occurs.

[0046] Fig.16It is a schematic diagram of the state of the auxiliary components of the present invention when wear occurs.

[0047] Fig.17 It is a schematic diagram of the state of the auxiliary component when high-pressure gas is introduced into the second branch pipe of the present invention.

[0048] In the figure: 1, fixed end cover; 2, movable end cover; 3, transmission shaft; 4, sealing assembly; 5, auxiliary assembly; 101, fixed seat; 102, fixed flange; 103, groove; 104, clamping block; 105, limiting groove; 106, limiting seat; 107, limiting ring; 108, ball bearing; 109, extension ring; 110, inner sealing ring; 111, support; 201, movable seat; 202, movable flange; 203, connecting sleeve; 204, slot; 205, clamping groove; 206, positioning plate; 207, inserting block; 208, extrusion spring; 209, outer ring groove; 210, inner ring groove; 211, compression sealing ring; 212, outer The first sealing ring; 401, the movable sleeve; 402, the locking sleeve; 403, the locking bolt; 404, the sealing sleeve; 405, the sealing seat; 406, the annular seat; 407, the stuffing seat; 408, the stuffing frame; 409, the stuffing slot; 410, the secondary sealing ring; 411, the mounting slot; 412, the adapter slot; 413, the mounting block; 414, the filling slot; 415, the tertiary sealing ring; 416, the primary sealing ring; 501, the first air storage part; 502, the second air storage part; 503, the three-way joint; 504, the ball; 505, the first branch pipe; 506, the first air duct; 507, the second air duct; 508, the second branch pipe; 509, the third branch pipe. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0050] Embodiment 1, the present invention provides as follows Figures 1 to 9 The integral bearing seat shown includes a fixed end cover 1, a movable end cover 2, a transmission shaft 3 and a sealing assembly 4. The movable end cover 2 is arranged on one side of the fixed end cover 1, and the transmission shaft 3 is arranged through the middle of the movable end cover 2 and the fixed end cover 1. The sealing assembly 4 is sleeved on the outside of the transmission shaft 3, and the sealing assembly 4 is arranged on one side of the movable end cover 2.

[0051] The fixed end cover 1 comprises a fixed seat 101 , and a fixed flange 102 of an annular structure is fixedly arranged on one side of the fixed seat 101 .

[0052] Specifically, a groove 103 of an annular structure is provided in the middle of the inner side wall of the fixing seat 101 , and a plurality of “L”-shaped blocks 104 are fixedly arranged around the notch of the groove 103 .

[0053] More specifically, a limiting groove 105 of an annular structure is provided at the bottom of the groove 103, a limiting seat 106 of an annular structure is provided inside the groove 103, and the inner side of the limiting seat 106 is located in the limiting groove 105, a limiting ring 107 is fixedly provided on the inner side of the limiting seat 106, and the side surface of the limiting ring 107 is provided as a smooth surface. The setting of the smooth surface can ensure that the limiting ring 107 will not affect the rotation of the ball bearing 108, and a ball bearing 108 is provided in the middle part of the outer side of the fixed seat 101, and the inner circumferential surface of the ball bearing 108 is socketed on the outside of the transmission shaft 3. The setting of the ball bearing 108 ensures that the transmission shaft 3 can rotate stably in the fixed seat 101.

[0054] In addition, an extension ring 109 is fixedly provided in the middle part of one side of the limiting seat 106 close to the movable seat 201, and an inner sealing ring 110 is sleeved on the outer side of the extension ring 109, and the inner sealing ring 110 corresponds to the movable seat 201. The inner sealing ring 110 can realize a pressing effect on the positioning plate 206 inside the movable end cover 2 to ensure the installation stability of the positioning plate 206. A support 111 is fixedly provided at the bottom end of the outer wall of the fixed seat 101, and the support 111 is used to install the fixed seat 101.

[0055] The movable end cover 2 includes a movable seat 201 , a movable flange 202 of an annular structure is fixedly provided on one side of the movable seat 201 , a connecting sleeve 203 is fixedly provided on the middle part of the outer side of the movable seat 201 , and the movable flange 202 can be connected to the fixed flange 102 by connecting bolts.

[0056] Specifically, a plurality of slots 204 are provided around the middle of the inner wall of the movable seat 201, a card slot 205 is provided in the middle of the slot 204, and the card slot 205 corresponds to the card block 104. The card slot 205 cooperates with the card block 104 to ensure the connection stability between the movable seat 201 and the fixed seat 101.

[0057] More specifically, a positioning plate 206 with an annular structure is provided inside the movable seat 201, and a plurality of plug blocks 207 corresponding to the slots 204 are provided around the outer side of the positioning plate 206, and an extrusion spring 208 is provided on the outer side of the positioning plate 206. When the extrusion spring 208 is squeezed, it can provide an outward force to the positioning plate 206 and the sealing assembly 4 to ensure that a small gap for rotation is retained between the sealing assembly 4 and the movable end cover 2.

[0058] In addition, an inner ring groove 210 is provided on the outer side of the positioning plate 206, an outer ring groove 209 is provided on the inner side wall of the movable seat 201, a compression sealing ring 211 is provided between the inner ring groove 210 and the outer ring groove 209, and the compression sealing ring 211 can achieve the sealing between the positioning plate 206 and the inner wall of the movable seat 201, and an outer sealing ring 212 is provided between the fixed seat 101 and the movable seat 201, and the outer sealing ring 212 can achieve the sealing between the fixed seat 101 and the movable seat 201 to prevent external dust from entering between the fixed seat 101 and the movable seat 201.

[0059] The transmission shaft 3 is arranged between the fixed seat 101 and the movable seat 201 , one end of the transmission shaft 3 is used to connect with the power mechanism, and the other end is used to connect with the grinding disc in the grinding chamber of the sand mill to play a role in power transmission.

[0060] The sealing assembly 4 includes a movable sleeve 401 , which is sleeved on the transmission shaft 3 and plugged on one end of the connecting sleeve 203 . The movable sleeve 401 and the connecting sleeve 203 can rotate relative to each other.

[0061] Specifically, a locking sleeve 402 is fixedly provided on the inner side of the movable sleeve 401, a locking bolt 403 is penetrated in the screw hole provided on the outer side of the locking sleeve 402, a spline groove is provided on the transmission shaft 3, and the locking bolt 403 and the spline groove cooperate with each other to limit the position between the locking sleeve 402 and the transmission shaft 3, a sealing sleeve 404 is provided on the inner side of the locking sleeve 402, a sealing seat 405 is provided on the inner side of the sealing sleeve 404, an annular seat 406 is fixedly provided on the inner side of the sealing seat 405, a packing seat 407 is sleeved on the outer side of the annular seat 406, and the packing seat 407 is connected to the annular seat 406. 06 is a clearance fit, a primary sealing ring 416 is arranged on the outer side of the stuffing seat 407, the primary sealing ring 416 can seal between the stuffing seat 407 and the sealing seat 405, a stuffing frame 408 is fixedly arranged on the inner side of the stuffing seat 407, and the stuffing frame 408 is arranged on one side of the extrusion spring 208, the extrusion spring 208 can generate an outward thrust on the stuffing frame 408, thereby generating an outward thrust on the sealing component 4, to ensure that there is a small gap between the left side surface of the movable sleeve 401 and the right end surface of the connecting sleeve 203, so that no wear will occur between the two.

[0062] More specifically, a filling groove 409 is opened on the outer side of the filling frame 408, and a secondary sealing ring 410 is arranged inside the filling groove 409. The secondary sealing ring 410 can realize the sealing between the filling seat 407 and the inner wall of the movable seat 201, and the friction force between the filling seat 407 and the movable seat 201 is greater than the friction force between the filling seat 407 and the sealing seat 405, so that there will be no relative rotation between the filling seat 407 and the movable seat 201, but there will be relative rotation between the filling seat 407 and the sealing seat 405.

[0063] In addition, the outer wall of the locking sleeve 402 is provided with two arc-shaped installation grooves 411, the outer wall of the sealing sleeve 404 is provided with two adapter grooves 412 corresponding to the installation grooves 411, and the outer side of the sealing seat 405 is fixed with two installation blocks 413 corresponding to the installation grooves 411. The installation blocks 413 and the installation grooves 411 are arranged to ensure the sealing effect while ensuring the transmission effect between the locking sleeve 402 and the sealing seat 405.

[0064] Moreover, a filling groove 414 with an annular structure is opened on the inner wall of the sealing sleeve 404, and a third-level sealing ring 415 is arranged inside the filling groove 414, and the third-level sealing ring 415 is sleeved on the transmission shaft 3. The third-level sealing ring 415 can fill and seal the gap between the sealing sleeve 404 and the transmission shaft 3 to achieve a sealing effect.

[0065] To sum up, when the device is in use, the fixed end cover 1 can be fixed to the transmission mechanism of the sand mill by fasteners such as bolts, and the fixed end cover 1, the movable end cover 2 and the sealing assembly 4 constitute a bearing seat structure, wherein the sealing assembly 4 is fixed to the outside of the transmission shaft 3, and the sealing assembly 4 is movably arranged on one side of the movable end cover 2. When the device is in use, the outside of the movable end cover 2, the sealing assembly 4 and one end of the transmission shaft 3 are located in the grinding chamber of the sand mill. At this time, the tertiary sealing ring 415 inside the sealing assembly 4 can achieve the sealing between the sealing assembly 4 and the transmission shaft 3, and the secondary sealing ring 410 inside the sealing assembly 4 can achieve the sealing between the sealing assembly 4 and the movable end cover 2. By sealing between the sealing assembly 4 and the transmission shaft 3 and between the sealing assembly 4 and the movable end cover 2, it is ensured that the material in the grinding chamber will not enter the inside of the bearing seat, thereby ensuring the sealing effect of the bearing seat. At the same time, the fixed end cover 1 can support one end of the transmission shaft 3 to ensure the stable operation of the transmission shaft 3.

[0066] When the transmission shaft 3 rotates, the movable sleeve 401 is fixed to the outside of the transmission shaft 3 through the locking sleeve 402 and the locking bolt 403. At this time, the third-level sealing ring 415 on the outside of the transmission shaft 3 can fill and seal the gap between the sealing sleeve 404 and the transmission shaft 3 to prevent the material from entering the movable end cover 2 along the transmission shaft 3. When the transmission shaft 3 drives the locking sleeve 402 to rotate, the locking sleeve 402 drives the mounting block 413 to rotate through the mounting groove 411 on its outside, and the mounting block 413 drives the sealing seat 405 and the annular seat 406 to rotate relative to the packing seat 407 and the packing frame 408, so that the sealing assembly 4 and the movable end cover 2 rotate relative to each other. During this process, the first-level sealing ring 416 can seal between the packing seat 407 and the sealing seat 405, and the second-level sealing ring 410 can seal between the sealing assembly 4 and the movable end cover 2.

[0067] The ball bearing 108 in the middle of the outer side of the fixing seat 101 limits the transmission shaft 3 in the middle of the fixing end cover 1 , thereby ensuring that the transmission shaft 3 can rotate stably in the middle of the fixing end cover 1 .

[0068] The present invention also provides a processing technology for an integral bearing seat, comprising the following steps:

[0069] Step 1: parts processing: the fixed end cover 1, the movable end cover 2, the transmission shaft 3 and the sealing component 4 are processed by die casting, injection molding and other processing methods.

[0070] Step 2: Assemble parts. First, assemble the sealing assembly 4 with the transmission shaft 3. Then assemble the transmission shaft 3, the sealing assembly 4 and the movable end cover 2. Finally, install the movable end cover 2 on one side of the fixed end cover 1 to complete the assembly of the bearing seat.

[0071] When assembling the sealing assembly 4 and the transmission shaft 3, firstly, the locking sleeve 402 is sleeved on the outer side of the transmission shaft 3, and the position between the locking sleeve 402 and the transmission shaft 3 is fixed by the locking bolt 403, and then the sealing sleeve 404, the sealing seat 405 and the stuffing seat 407 are installed on the inner side of the locking sleeve 402 in sequence. When installing the sealing sleeve 404, firstly, the tertiary sealing ring 415 is installed in the filling groove 414 on the inner wall of the sealing sleeve 404, and the tertiary sealing ring 415 is tightly fitted with the outer side wall of the transmission shaft 3. When installing the stuffing seat 407, firstly, the primary sealing ring 416 is installed on the outer side of the stuffing seat 407, and the The primary sealing ring 416 is pressed against the inner side of the sealing seat 405, and the stuffing seat 407 is connected with the annular seat 406 on the inner side of the sealing seat 405 with a clearance fit. After the stuffing seat 407 is installed, the secondary sealing ring 410 is installed in the stuffing groove 409, and then the transmission shaft 3 is inserted into the middle of the movable end cover 2, and the stuffing seat 407, the sealing seat 405, the sealing sleeve 404 and the locking sleeve 402 are all inserted into the middle of the connecting sleeve 203. At this time, the stuffing frame 408, the stuffing groove 409 and the secondary sealing ring 410 are all in the middle of the movable seat 201, and the secondary sealing ring 410 and the inner wall of the movable seat 201 are tightly fitted.

[0072] After the sealing component 4 is assembled with the movable end cover 2, the extrusion spring 208, the compression seal ring 211 and the positioning plate 206 are placed in the movable seat 201 in sequence, and the plug block 207 on the outside of the positioning plate 206 is inserted into the corresponding slot 204. At the same time, the two ends of the extrusion spring 208 are respectively pressed against the sides of the positioning plate 206 and the filling frame 408 to ensure that a small gap is left between the movable sleeve 401 and the connecting sleeve 203, so as to ensure that the movable sleeve 401 will not contact with the connecting sleeve 203 and cause wear. Then, the limiting seat 106 is placed in the groove 103, and the inner sealing ring 110 is sleeved on the outside of the extension ring 109 on the outside of the limiting seat 106. Then, the movable seat 106 is 201 is placed on one side of the fixed seat 101, and the outer sealing ring 212 is placed between the movable seat 201 and the fixed seat 101, and the position of the movable seat 201 is adjusted so that the block 104 on the inner side of the fixed seat 101 is first inserted into the slot 204 on the inner side of the movable seat 201, and then the movable seat 201 is rotated to make the block 104 snap into the slot 205. At this time, the inner sealing ring 110 is pressed between the positioning plate 206 and the limit seat 106, and the pressing sealing ring 211 is pressed between the inner ring groove 210 and the outer ring groove 209, and then the fixed seat 101 and the movable seat 201 are fixed by bolts. At this time, the installation between the fixed seat 101 and the movable seat 201 can be completed.

[0073] After the fixed seat 101 and the movable seat 201 are installed, the ball bearing 108 is sleeved on the transmission shaft 3, and the ball bearing 108 is slid along the transmission shaft 3 so that the outer cylindrical surface of the ball bearing 108 is clamped in the middle of the outer side of the fixed seat 101, completing the assembly between the fixed end cover 1 and the transmission shaft 3. At this point, the assembly of the bearing seat can be completed.

[0074] Step three, product testing, fix the fixed end cover 1 in position with bolts, then test the sealing between the sealing assembly 4 and the transmission shaft 3, and test the rotation of the transmission shaft 3 under load. The product processing can be completed after passing the test.

[0075] Embodiment 2. In the above embodiment, the sealing between the sealing component 4 and the transmission shaft 3 is achieved by the tertiary sealing ring 415, and the sealing between the sealing component 4 and the movable end cover 2 is achieved by the secondary sealing ring 410, that is, by sealing between the sealing component 4 and the transmission shaft 3 and between the sealing component 4 and the movable end cover 2, it is ensured that the material in the grinding chamber does not enter the interior of the bearing seat, thereby ensuring the sealing effect of the bearing seat, and by arranging the extrusion spring 208 so that it can provide an outward force to the positioning plate 206 and the filling frame 408, it is ensured that there is a small gap between the left side of the movable sleeve 401 and the right end of the connecting sleeve 203, thereby preventing wear between the sealing component 4 and the movable end cover 2 and improving the service life of the bearing seat.

[0076] However, as the above-mentioned integral bearing seat is put into use for a long time, its internal parts will inevitably be worn to varying degrees. In the actual production and use process, in order to be able to grasp the wear condition of the bearing seat and replace the worn parts inside it in time, the staff is required to regularly inspect and maintain the bearing seat. Although the bearing seat can be disassembled and inspected, it is possible to grasp the internal wear condition of the bearing seat, but the bearing seat needs to be disassembled and assembled frequently. The disassembly and assembly process of the bearing seat is relatively cumbersome, which greatly increases the workload of the staff. In addition, in most cases, the degree of wear of the bearing seat in actual use does not affect its normal operation, and there is no need to disassemble and maintain the bearing seat. In this case, unnecessary disassembly and assembly of the bearing seat will inevitably cause a certain degree of wear on the bearing seat body, affecting the service life of the bearing seat. Therefore, based on the above problems, the solution of the present invention is further improved so that when the wear degree of the components inside the bearing seat reaches the point where replacement is required, the bearing seat body can automatically provide feedback and prompts to the outside world, so that the staff can determine whether disassembly and assembly is required simply by observing the feedback provided by the bearing seat, without the need to disassemble and assemble the bearing seat regularly, thereby avoiding unnecessary wear on the bearing seat due to frequent disassembly and assembly, extending the service life of the bearing seat, and reducing the workload of the staff.

[0077] Specifically, Figure 10-16 As shown, the movable end cover 2 is provided with an auxiliary component 5 inside, and the auxiliary component 5 includes a first gas storage part 501, a second gas storage part 502, a three-way joint 503 and a ball 504. The first gas storage part 501 and the second gas storage part 502 are both pre-filled with gas. The outer side of the positioning plate 206 is provided with a placement groove, the first gas storage part 501 is fixedly arranged in the placement groove, and the outer side of the first gas storage part 501 is against the extrusion spring 208, and the second gas storage part 502 is fixedly arranged inside the plug block 207 located at the top of the positioning plate 206. The top of the second air storage part 502 penetrates to the top of the plug block 207, the top threaded seal of the movable seat 201 is provided with a first branch pipe 505, the three-way joint 503 is threadedly connected and provided at the top of the first branch pipe 505, the ball 504 is provided inside the three-way joint 503, the spherical surface of the ball 504 and the inner wall of the three-way joint 503 are tightly fitted, and the diameter of the three-way joint 503 is larger than the diameter of the first branch pipe 505, so the ball 504 can only move up and down in the three-way joint 503, and will not move to the inside of the first branch pipe 505.

[0078] More specifically, a first air duct 506 is opened inside the positioning plate 206, and the bottom end of the first air duct 506 is connected to the first air storage portion 501, and the top of the first air duct 506 is connected to the second air storage portion 502. A second air duct 507 is opened inside the movable seat 201, and the bottom end of the second air duct 507 extends to the top of the second air storage portion 502, and the top of the second air storage portion 502 blocks the bottom end of the second air duct 507, and the top of the second air duct 507 is connected to the first branch pipe 505.

[0079] At the same time, the first air storage section 501 and the second air storage section 502 are both made of elastic materials, so that when the second air storage section 502 expands, the top of the second air storage section 502 can bulge upward to the inside of the second air channel 507, and the degree to which the second air storage section 502 bulges into the second air channel 507 changes synchronously with the state of the second air storage section 502, that is, when the gas in the second air storage section 502 increases, the degree to which its top bulges into the second air channel 507 will increase accordingly, and when the gas in the second air storage section 502 decreases, the degree to which its top bulges into the second air channel 507 will decrease accordingly.

[0080] In addition, the interior of the second air channel 507 and the first branch pipe 505 are pre-filled with gas, and since the ball 504 seals the top of the first branch pipe 505 and the second air storage unit 502 seals the bottom of the second air channel 507, the amount of pre-filled gas in the second air channel 507 and the first branch pipe 505 will not change, and a charging port can be set on the first branch pipe 505 to achieve the purpose of pre-filling gas into the second air channel 507 and the first branch pipe 505.

[0081] Moreover, the second branch pipe 508 and the third branch pipe 509 are respectively threadedly sealed on both sides of the top of the three-way joint 503, and the second branch pipe 508 passes through the fixed flange 102 and the movable flange 202. The second branch pipe 508 can be connected to external high-pressure gas or open to the external space, and the third branch pipe 509 is connected to the grinding chamber of the sand mill. The heights of the connecting positions of the second branch pipe 508, the third branch pipe 509 and the three-way joint 503 are all higher than the height of the horizontal center line of the ball 504 when it is at the highest position in the three-way joint 503, so that when pressurized gas or pressurized fluid passes through the second branch pipe 508 and / or the third branch pipe 509, the ball (504) can move downward under the action of the pressure in the second branch pipe (508) and / or the third branch pipe (509).

[0082] The first branch pipe 505, the three-way joint 503, the second branch pipe 508 and the third branch pipe 509 are connected by threaded connection, which can facilitate subsequent installation and replacement.

[0083] Furthermore, during normal use of the bearing seat, since the relative positions of the positioning plate 206, the extrusion spring 208 and the stuffing seat 407 do not change relative to each other, the extrusion spring 208 does not change the extrusion state of the first gas storage portion 501, that is, the first gas storage portion 501 is in a state of being compressed by the extrusion spring 208, and the second gas storage portion 502 is in an expanded state. At this time, the gas in the first gas storage portion 501 and the second gas storage portion 502 does not flow, so the state of the second gas storage portion 502 does not change, so that the top of the second gas storage portion 502 is directed toward the second air channel 50 7 will not change, and the gas pre-filled in the second airway 507 will not flow. At this time, the upward thrust exerted on the ball 504 by the gas pre-filled in the second airway 507 is greater than the sum of the weight of the ball 504 itself and the downward force exerted on the ball 504 by the second branch pipe 508 and the third branch pipe 509, so that the ball 504 is confined at the highest position inside the three-way joint 503, and at this time, the ball 504 simultaneously blocks the second branch pipe 508 and the third branch pipe 509, so that the second branch pipe 508 and the third branch pipe 509 are disconnected from each other.

[0084] Furthermore, when the internal components of the bearing seat are worn to a certain extent, such as the sides of the positioning plate 206, the sealing seat 405 or the annular seat 406, the distance between the positioning plate 206 and the filling frame 408 will become relatively larger due to the presence of the extrusion spring 208, and in this process, the squeezing force of the extrusion spring 208 on the first air storage section 501 will decrease accordingly. At this time, the gas in the second air storage section 502 will flow into the first air storage section 501 through the first air channel 506, so that the air pressure in the second air storage section 502 is reduced, thereby causing the original protrusion of the top of the second air storage section 502 into the second air channel 507 to be relatively reduced, and this makes the space occupied by the protrusion at the bottom of the second air channel 507 smaller, that is, the space that the pre-filled gas in the second air channel 507 can reach is relatively larger. Therefore, at this time, the air pressure inside the first branch pipe 505 and the second air channel 507 is relatively reduced. When the air pressure inside the first branch pipe 505 and the second air channel 507 is reduced, it will be impossible Then, sufficient upward thrust is provided to the ball 504. At this time, the ball 504 moves downward under the action of its own weight and the downward force of the third branch pipe 509, so that the ball 504 no longer blocks the second branch pipe 508 and the third branch pipe 509, and the second branch pipe 508 and the third branch pipe 509 are in a connected state. At this time, the fluid in the grinding chamber will flow through the third branch pipe 509, the three-way joint 503 and the second branch pipe 508 to the outside, and in this process, the ball 504 always blocks the first branch pipe 505 to prevent the fluid from entering the first branch pipe 505. Therefore, when the staff finds that the fluid in the grinding chamber flows from the second branch pipe 508 to the outside, this indicates that the state of the extrusion spring 208 inside the bearing seat has changed, that is, the parts inside the bearing seat have undergone a certain degree of wear, and the staff judges the degree of wear inside the bearing seat according to the flow rate of the fluid flowing from the second branch pipe 508 to the outside, so as to further decide whether the bearing seat needs to be disassembled and maintained.

[0085] It should be noted that in the above working situation, due to the presence of fluid grinding media inside the sand mill, the fluid will enter the third branch pipe 509 and exert the fluid pressure on the ball 504. The downward component of force at the third branch pipe 509 on the ball 504 is actually the component of force generated when the fluid acts on the ball 504. The downward component of force generated by the fluid cooperates with the gravity of the ball 504 itself to offset the upward thrust generated by the pre-filled gas and push the ball 504 downward to achieve connectivity between the second branch pipe 508 and the third branch pipe 509.

[0086] To summarize, through the coordinated use of the extrusion spring 208, the first air storage section 501, the second air storage section 502, the three-way joint 503, the ball 504, the first air channel 506 and the second air channel 507, when the internal components of the bearing seat are worn to a certain extent, the position of the ball 504 in the three-way joint 503 will automatically change, so that the second branch pipe 508 and the third branch pipe 509 are automatically switched to a connected state, and the fluid in the grinding chamber will automatically flow from the second branch pipe 508 to the outside, thereby timely and obviously providing feedback and prompts to the staff on the wear inside the bearing seat, and reflecting the degree of wear inside the bearing seat by the flow rate of the fluid flowing to the outside, providing a reference for the staff on whether the bearing seat needs to be disassembled and maintained, so that the staff can determine whether disassembly and assembly is needed only by observing the feedback provided by the bearing seat, without the need to regularly disassemble and assemble the bearing seat, thereby avoiding unnecessary wear on the bearing seat due to frequent disassembly and assembly, extending the service life of the bearing seat, and reducing the work intensity of the staff.

[0087] Embodiment three, in the actual use process of the bearing seat, since it is mainly used for the grinding work of the sand mill, and the grinding characteristics of the materials in the sand mill are also different, for example, when the concentration of the material to be ground is high and the hardness is large, it is necessary to increase the rotation speed of the transmission shaft 3 to increase the rotation speed of the grinding disc, so as to increase the collision probability and intensity between the material and the medium, and improve the grinding efficiency of the material. However, increasing the rotation speed of the transmission shaft 3 will inevitably increase the load on the bearing seat, resulting in the risk of unstable movement between the components inside the bearing seat.

[0088] Specifically, Fig.17 As shown, when the material concentration is high or the hardness is high, while increasing the speed of the transmission shaft 3, the left end of the second branch pipe 508 is connected to the external high-pressure gas. At this time, the high-pressure gas is blown to the three-way joint 503 through the second branch pipe 508, and the downward force provided by the high-pressure gas on the ball 504 will force the ball 504 to move downward, so that the second branch pipe 508 and the third branch pipe 509 are in a state of mutual communication. When the ball 504 moves downward, the pre-charged gas in the second air channel 507 and the first branch pipe 505 will push the second gas storage portion 502 protruding to the second air channel 509. 7 is squeezed, so that the part protruding into the second air channel 507 becomes smaller, that is, the air storage space of the second air storage section 502 becomes smaller. At this time, the gas in the second air storage section 502 will flow into the first air storage section 501 through the first air channel 506, and the first air storage section 501 expands. At this time, the squeezing force of the first air storage section 501 on the extrusion spring 208 becomes greater, so that the extrusion spring 208 provides a greater reverse squeezing force on the components located on both sides thereof, so that the components in the bearing seat are in closer contact, thereby improving the movement stability between the components.

[0089] More specifically, while the high-pressure gas is blown in through the second branch pipe 508, the high-pressure gas will be blown into the grinding chamber through the three-way joint 503 and the third branch pipe 509 to achieve turbulence on the material and grinding media in the grinding chamber.

[0090] In summary, by connecting the left end of the second branch pipe 508 to the external high-pressure gas, the contact between the various components in the bearing seat can be made closer, thereby improving the movement stability between the various components inside the bearing seat. At the same time, the high-pressure gas can improve the mixing uniformity between the material and the medium, and increase the collision probability and strength between the material and the medium, thereby further improving the grinding effect.

[0091] Embodiment 4, as Fig.16 As shown, when the bearing seat is involved in the grinding process of the sand mill, when the pressure inside the grinding chamber is too high, the fluid pressure entering the third branch pipe 509 from the grinding chamber will also increase synchronously. At this time, the ball 504 will move downward under the action of the fluid pressure, so that the second branch pipe 508, the three-way joint 503 and the third branch pipe 509 are connected. At this time, the pressure fluid can be discharged to the outside, so as to achieve the effect of automatic pressure relief in the grinding chamber, thereby timely eliminating possible safety hazards and ensuring the safety of the grinding process.

[0092] It should be noted that when the bearing seat is worn or the pressure in the grinding chamber is too high, the second branch pipe 508, the three-way joint 503 and the third branch pipe 509 will be connected and the fluid will be discharged outward. At this time, when the staff is judging the reason for the discharge of fluid outward, they can wait for the grinding process to continue. Specifically, if it is caused by excessive pressure in the grinding chamber, as the pressure relief process continues, the pressure in the grinding chamber gradually decreases. When it decreases to a certain extent, the ball 504 will rise to the top of the three-way joint 503 again under the action of the extrusion spring 208, thereby disconnecting the second branch pipe 508 and the third branch pipe 509 again. At this time, the fluid will no longer be discharged outward. It can be judged that the discharge of fluid outward is caused by excessive pressure in the grinding chamber, and the staff does not need to inspect the bearing seat. If it is caused by wear inside the bearing seat, the ball 504 will no longer disconnect the second branch pipe 508 and the third branch pipe 509, and the second branch pipe 508 will continue to discharge fluid. At this time, it can be determined that the fluid is discharged outward due to wear inside the bearing seat. The staff can determine whether disassembly and maintenance are required based on the rate of fluid discharge.

[0093] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integral bearing seat, comprising a fixed end cover (1), comprising a fixed seat (101), a fixed flange (102) being fixedly arranged on one side of the fixed seat (101), a transmission shaft (3) being arranged through the middle of the fixed seat (101), characterized in that: Also includes: A movable end cover (2), comprising a movable seat (201), a movable flange (202) being fixedly provided on one side of the movable seat (201), a connecting sleeve (203) being fixedly provided on the middle portion of the outer side of the movable seat (201), a plurality of slots (204) being provided around the middle portion of the inner side wall of the movable seat (201), a clamping groove (205) being provided in the middle portion of the slots (204), a positioning plate (206) being provided inside the movable seat (201), a plurality of insert blocks (207) corresponding to the slots (204) being provided around the outer side of the positioning plate (206), an extrusion spring (208) being provided on the outer side of the positioning plate (206), the movable end cover (2) cooperating with the fixed end cover (1) to limit the transmission shaft (3) and seal the bearing seat; A sealing assembly (4), comprising a movable sleeve (401), wherein the movable sleeve (401) is sleeved on the transmission shaft (3), and the movable sleeve (401) is plugged into one end of the connecting sleeve (203), and the sealing assembly (4) is capable of sealing the outer side of the movable end cover (2); An auxiliary component (5) is arranged inside the movable end cover (2) and can provide feedback on the wear condition of the internal components of the bearing seat; The auxiliary component (5) comprises a first air storage portion (501), a second air storage portion (502), a three-way joint (503) and a ball (504); the first air storage portion (501) is fixedly arranged in the positioning plate (206), and the outer side of the first air storage portion (501) abuts against the extrusion spring (208); the second air storage portion (502) is fixedly arranged in the insert block (207), and the top of the second air storage portion (502) penetrates to the top of the insert block (207); the top of the movable seat (201) is provided with a first branch pipe (505), and the three-way joint (503) is provided with At the top of the first branch pipe (505), the ball (504) is arranged inside the three-way joint (503); a first air channel (506) is opened inside the positioning plate (206), the bottom end of the first air channel (506) is connected to the first air storage part (501), the top end of the first air channel (506) is connected to the second air storage part (502), and a second air channel (507) is opened inside the movable seat (201), the bottom end of the second air channel (507) extends to the top of the second air storage part (502), and the top end of the second air channel (507) is connected to the first branch pipe (505).

2. The integral bearing seat according to claim 1, characterized in that: A second branch pipe (508) and a third branch pipe (509) are respectively provided on both sides of the top of the three-way joint (503), and the second branch pipe (508) penetrates the fixed flange (102) and the movable flange (202). The second branch pipe (508) and the third branch pipe (509) are at the same horizontal height, and the heights of the connecting positions of the second branch pipe (508), the third branch pipe (509) and the three-way joint (503) are higher than the height of the horizontal center line of the ball (504) when it is at the highest position in the three-way joint (503), so that the ball (504) can move downward under the action of the pressure in the second branch pipe (508) and / or the third branch pipe (509).

3. The integral bearing seat according to claim 1, characterized in that: A locking sleeve (402) is fixedly provided on the inner side of the movable sleeve (401), a locking bolt (403) is penetrated in a screw hole provided on the outer side of the locking sleeve (402), a sealing sleeve (404) is provided on the inner side of the locking sleeve (402), a sealing seat (405) is provided on the inner side of the sealing sleeve (404), an annular seat (406) is fixedly provided on the inner side of the sealing seat (405), a stuffing seat (407) is sleeved on the outer side of the annular seat (406), and a clearance fit is formed between the stuffing seat (407) and the annular seat (406), a primary sealing ring (416) is provided on the outer side of the stuffing seat (407), a stuffing frame (408) is fixedly provided on the inner side of the stuffing seat (407), and the stuffing frame (408) is provided on one side of the extrusion spring (208).

4. The integral bearing seat according to claim 3, characterized in that: A filling groove (409) is provided on the outer side of the filling frame (408), and a secondary sealing ring (410) is provided inside the filling groove (409).

5. The integral bearing seat according to claim 4, characterized in that: The outer side wall of the locking sleeve (402) is provided with two arc-shaped mounting grooves (411), the outer side wall of the sealing sleeve (404) is provided with two adapting grooves (412) corresponding to the mounting grooves (411), the outer side of the sealing seat (405) is fixedly provided with two mounting blocks (413) corresponding to the mounting grooves (411), the inner side wall of the sealing sleeve (404) is provided with a filling groove (414) of an annular structure, a third-level sealing ring (415) is provided inside the filling groove (414), and the third-level sealing ring (415) is sleeved on the transmission shaft (3).

6. The integral bearing seat according to claim 1, characterized in that: A groove (103) with an annular structure is provided in the middle of the inner side wall of the fixing seat (101); a plurality of "L"-shaped blocks (104) are arranged around the notch of the groove (103); the blocks (104) correspond to the groove (205); a limiting groove (105) with an annular structure is provided at the bottom of the groove (103); a limiting seat (106) with an annular structure is provided inside the groove (103); the inner side of the limiting seat (106) is located in the limiting groove (105); a limiting ring (107) is fixedly provided on the inner side of the limiting seat (106); and the side surface of the limiting ring (107) is provided as a smooth surface; a ball bearing (108) is provided in the middle of the outer side of the fixing seat (101); and the ball bearing (108) is sleeved and arranged on the outside of the transmission shaft (3).

7. The integral bearing seat according to claim 6, characterized in that: An extension ring (109) is fixedly provided at the middle of one side of the limiting seat (106) close to the movable seat (201), an inner sealing ring (110) is sleeved on the outer side of the extension ring (109), and the inner sealing ring (110) corresponds to the movable seat (201), and a support (111) is fixedly provided at the bottom end of the outer wall of the fixed seat (101).

8. The integral bearing seat according to claim 1, characterized in that: An inner ring groove (210) is formed on the outer side of the positioning plate (206), an outer ring groove (209) is formed on the inner side wall of the movable seat (201), a compression sealing ring (211) is provided between the inner ring groove (210) and the outer ring groove (209), and an outer sealing ring (212) is provided between the fixed seat (101) and the movable seat (201).

9. A processing technology for an integral bearing seat, applied to the integral bearing seat according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: parts processing, namely, processing the fixed end cover (1), the movable end cover (2), the transmission shaft (3) and the sealing component (4) by die casting and injection molding respectively; Step 2: assembling parts. First, assemble the sealing assembly (4) with the transmission shaft (3). Then, assemble the transmission shaft (3), the sealing assembly (4) with the movable end cover (2). Finally, install the movable end cover (2) on one side of the fixed end cover (1) to complete the assembly of the bearing seat. Step 3: Product testing: fix the fixed end cover (1) in place with bolts, then test the sealing performance between the sealing assembly (4) and the transmission shaft (3), and test the rotation of the transmission shaft (3) under load. After the product passes the test, all processing of the product is completed.

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