Detachable bearing seat system

Abstract

The utility model relates to the technical field of bearing seats, in particular to a detachable bearing seat system which comprises a first bearing pack, a second bearing pack, a gear transmission mechanism and a limiting sleeve, a limiting step is arranged in an upper opening, the first bearing pack is arranged at the upper end of the gear transmission mechanism and is in contact with the inner wall surface of the limiting sleeve, and the second bearing pack is arranged at the lower end of the gear transmission mechanism. The second bearing set is arranged at the lower end of the gear transmission mechanism and detachably connected with the lower box body, the limiting sleeve piece is detachably arranged between the first bearing set and the upper box body, a flat key is arranged on the outer side of the limiting sleeve piece, and the limiting sleeve piece limits the displacement path of the first bearing set through cooperation of the flat key and the limiting step. The detachable limiting sleeve is adopted, the flat key is arranged on the outer side of the limiting sleeve, the flat key is matched with the limiting step in the upper opening, the displacement path of the first bearing set can be limited through the flat key and the limiting step, and the bearing replacement efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing seat technical field especially relates to a detachable bearing seat system. BACKGROUND

[0002] Gear transmission is a kind of transmission mode that is more widely used. Gear drives the bearing on the shaft at both ends to rotate by rotating, and the force generated by gear transmission is borne by the bearing, and the service life of the bearing is often damaged due to various factors such as use condition and lubrication condition. Old bearings need to be disassembled and replaced with new bearings.

[0003] Most of the gear transmission is carried out in the closed environment of the gear box body, and the bearing seat is integrally welded on the box body. Therefore, when replacing the bearing, especially for the vertical gear transmission structure, the bearing on the upper part needs to be replaced, the box body needs to be disassembled, the gear shaft needs to be lifted out, and finally the bearing needs to be disassembled and assembled. After the new bearing is assembled, the gear and shaft are assembled into the box body, and the box body is sealed. The operation is very cumbersome, time-consuming and laborious. SUMMARY

[0004] The utility model aims at providing a detachable bearing seat system, which improves the structure of the bearing seat as a whole, and replaces the upper bearing without disassembling the gear box as a whole.

[0005] To achieve the above-mentioned purpose, the utility model provides a detachable bearing seat system, which is arranged between the upper box body with upper opening and the lower box body with lower opening. The system comprises a first bearing group, a second bearing group, a gear transmission mechanism and a limiting sleeve. A limiting step is arranged in the upper opening. The first bearing group is arranged at the upper end of the gear transmission mechanism and in contact with the inner wall of the limiting sleeve. The second bearing group is arranged at the lower end of the gear transmission mechanism and detachably connected with the lower box body. The limiting sleeve is detachably arranged between the first bearing group and the upper box body. A flat key is arranged on the outside of the limiting sleeve. The limiting sleeve and the limiting step form a displacement path limitation of the first bearing group through the cooperation of the flat key and the limiting step.

[0006] When the bearing in the gear box needs to be replaced, the limiting sleeve assembly is first disassembled, the flat key cooperates with the limiting step to limit the displacement path of the first bearing set, so that when the bearing needs to be replaced, after the detachable limiting sleeve assembly is partially disassembled, the gear box does not need to be disassembled as a whole, the limiting sleeve assembly, the first bearing set, the gear transmission mechanism and the second bearing set are hoisted, so that the first bearing set and the limiting sleeve assembly located above are exposed to the upper box body, and the subsequent bearing replacement work can be performed after the limiting sleeve assembly is completely disassembled, in the process of returning, the side key is installed outside the limiting sleeve assembly, that is, the limiting step cooperates with the side key to limit the path of the first bearing set, that is, the cooperation between the limiting step and the side key makes the first bearing set unable to move beyond the limiting step in the upper box body.

[0007] The limiting sleeve assembly comprises a bearing sleeve, a pressing plate, an end cover, an adjusting pad and an adjusting ring, the bearing sleeve is sleeved outside the first bearing set, the flat key is arranged outside the bearing sleeve, the adjusting ring is arranged on the upper side of the first bearing set, the bearing sleeve covers the first bearing set, the pressing plate is arranged above the first bearing set, the pressing plate and the end cover are connected by bolts, the end cover is detachably buckled on the inner edge of the upper opening through the bolts, and the adjusting pad is arranged between the end cover and the upper opening.

[0008] The bearing sleeve is used to cover the first bearing set, so that the first bearing set can stably rotate in the upper opening when rotating, the pressing plate is used to close the end cover, thereby reducing the influence of the outside on the first bearing set, the adjusting ring tightly presses the outer ring of the first bearing set, the interference amount is 0.01-0.03mm, and the adjusting pad is in the form of matching grinding, so as to adjust the position of the gear transmission mechanism in the gear box, thereby making the meshing effect between the gear transmission mechanism and the external mechanism better.

[0009] The end cover is provided with a connecting bolt and a limiting bolt, the connecting bolt connects the end cover, the adjusting ring and the bearing sleeve in sequence along the insertion direction, and the limiting bolt is arranged at the outer edge of the end cover to connect the end cover and the inner edge of the upper opening.

[0010] The end cover is connected with the adjusting ring and the bearing sleeve through the connecting bolt, and the limiting bolt is connected with the upper box body, so that the limiting sleeve assembly and the upper box body are detachably fixed, when the entire bearing seat system is disassembled, after the fixing between the end cover and the upper box body is released, the first bearing set, the second bearing set, the gear transmission mechanism and the limiting sleeve assembly can be hoisted together, without disassembling the gear box.

[0011] The outer wall of the bearing sleeve is provided with a key groove, the key groove is matched with the flat key, the upper side of the bearing sleeve is provided with a fixing bolt, and the fixing bolt connects the bearing sleeve and the adjusting ring.

[0012] The key groove is used to match the flat key. After the flat key is arranged in the key groove, the exposed part is matched with the limiting step to limit the first bearing group from falling below the limiting step.

[0013] The pressing plate comprises a butt joint pressing plate, a cover plate and a lubricating pipe connecting the butt joint pressing plate and the cover plate. The butt joint pressing plate is arranged at the upper end of the gear transmission mechanism. The lubricating pipe is arranged at the central axis of the cover plate. One end of the lubricating pipe is butt jointed with the gear transmission mechanism, and the other end penetrates the butt joint pressing plate to connect an external oil path. The butt joint pressing plate is arranged on the end cover to match the end cover to close the upper opening.

[0014] The butt joint pressing plate is used to butt joint the gear transmission mechanism, the cover plate is used to close the first bearing group, and the lubricating pipe penetrates the cover plate and the butt joint pressing plate to meet the demand of delivering lubricating oil to the gear transmission mechanism.

[0015] The butt joint pressing plate, the end cover, the adjusting ring, the first bearing group and the cover plate form a closed space. A plurality of drill holes are distributed on the butt joint pressing plate. The plurality of drill holes penetrate the butt joint pressing plate to communicate the closed space.

[0016] The closed space is used to avoid the entry of external impurities. The drill holes are matched with the rollers of the first bearing group to facilitate the delivery of lubricating oil into the rollers of the first bearing group.

[0017] The upper side of the butt joint pressing plate is further provided with an oil delivery pipe. The oil delivery pipe comprises a plurality of branch pipe heads and a main oil pipe butt jointed with an external oil path. Each branch pipe head corresponds to a drill hole and is fixed on the butt joint pressing plate by a bolt.

[0018] The branch pipe head is communicated with the main oil pipe to match the external oil path to output oil in the form of the rollers of the first bearing group, thereby meeting the lubrication demand of the first bearing group.

[0019] The gear transmission mechanism comprises a gear shaft and a transmission gear. The gear shaft is arranged between the upper box body and the lower box body. An axial oil channel is further arranged along the central axis of the gear shaft to communicate the lubricating pipe and the second bearing group. The transmission gear is sleeved on the tail end of the gear shaft and is engaged with an external structure to perform transmission.

[0020] The gear shaft is used to arrange the transmission gear, the first bearing set and the second bearing set are arranged at the upper and lower ends of the gear shaft respectively, the axial oil channel is arranged along the central axis of the gear shaft, and the oil liquid is conveyed into the second bearing set through the lubricating pipe in communication with the axial oil channel, so that the lubrication requirement of the second bearing set is met, and the transmission gear cooperates with the adjusting pad, so that the height of the transmission gear can be adjusted, and the meshing area between the transmission gear and other mechanisms outside is increased.

[0021] The first bearing set is a double-row tapered roller bearing or a cylindrical roller bearing.

[0022] The second bearing set is a double-row tapered roller bearing or a cylindrical roller bearing.

[0023] The double-row tapered roller or cylindrical roller bearing can be used to avoid the overall disassembly of the gear box in the system.

[0024] The utility model relates to a detachable bearing seat system, on the basis of prior art, the whole bearing seat system is designed, adopts the spacing sleeve of detachable arrangement, and the flat key is arranged outside the spacing sleeve, utilizes the flat key with the spacing step in the upper open mouth cooperation, when the bearing replacement operation of first bearing set located upper is carried out, can utilize the flat key with spacing step to limit the displacement path of first bearing set, cooperates the dismounting operation of detachable spacing sleeve, can leave the operation space for dismounting, need not dismount the whole gear box of bearing seat system arrangement, significantly improves the efficiency of bearing replacement. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0026] Fig. 1 It is the structure schematic diagram when the first bearing set of the detachable bearing seat system of the utility model is a double-row tapered roller bearing.

[0027] Fig. 2 It is the structure schematic diagram when the first bearing set of the detachable bearing seat system of the utility model is a cylindrical roller bearing.

[0028] 1. first bearing set; 2. second bearing set; 3. gear transmission mechanism; 4. limiting sleeve set; 5. limiting step; 6. flat key; 11. bearing sleeve; 12. pressing plate; 13. end cover; 14. adjusting pad; 15. adjusting ring; 111. connecting bolt; 112. limiting bolt; 113. keyway; 114. fixing bolt; 115. butt joint pressing plate; 116. cover plate; 117. lubricating pipe; 118. closed space; 119. drilling; 120. oil delivery pipe; 121. branch pipe head; 122. main oil pipe; 123. gear shaft; 124. transmission gear; 125. axial oil passage. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0030] Please refer to Figs. 1-2 The present application provides a detachable bearing seat system arranged between an upper box body with an upper opening and a lower box body with a lower opening. The system comprises a first bearing set 1, a second bearing set 2, a gear transmission mechanism 3, and a limiting sleeve set 4. A limiting step 5 is arranged in the upper opening. The first bearing set 1 is arranged at the upper end of the gear transmission mechanism 3 and in contact with the inner wall of the limiting sleeve set 4. The second bearing set 2 is arranged at the lower end of the gear transmission mechanism 3 and detachably connected with the lower box body. The limiting sleeve set 4 is detachably arranged between the first bearing set 1 and the upper box body. The limiting sleeve set 4 is provided with a flat key 6 on the outside. The limiting sleeve set 4 and the limiting step 5 cooperate to limit the displacement path of the first bearing set 1 through the flat key 6.

[0031] In this embodiment, the first bearing set 1 and the second bearing set 2 are arranged at the upper and lower ends of the gear transmission mechanism 3, respectively. The limiting sleeve set 4 is detachably arranged between the upper box body and the first bearing set 1. When the first bearing set 1 needs to be detached, the limiting sleeve set 4 can be detached to provide an operating space for lifting the first bearing set 1, facilitating subsequent bearing replacement operation. The gear box does not need to be disassembled and reassembled, significantly improving the efficiency of bearing replacement. The flat key 6 and the limiting step 5 cooperate to limit the displacement path of the first bearing set 1, preventing the first bearing set 1 from falling below the limiting step 5.

[0032] Further, the limiting set 4 comprises a bearing sleeve 11, a pressing plate 12, an end cover 13, an adjusting pad 14 and an adjusting ring 15. The bearing sleeve 11 is sleeved on the outside of the first bearing set 1, the flat key 6 is arranged on the outside of the bearing sleeve 11, the adjusting ring 15 is pressed on the upper side of the first bearing set 1, the bearing sleeve 11 covers the first bearing set 1, the pressing plate 12 is arranged above the first bearing set 1, the pressing plate 12 is connected with the end cover 13 through bolts, the end cover 13 is detachably buckled on the inner edge of the upper opening through bolts, and the adjusting pad 14 is arranged between the end cover 13 and the upper opening.

[0033] In this embodiment, the bearing sleeve 11 is used to arrange the flat key 6. After the flat key 6 is limited on the outside of the bearing sleeve 11 through bolts, the flat key 6 and the limiting step 5 form a limiting for the bearing sleeve 11, so as to avoid the falling of the bearing sleeve 11 and the first bearing set 1 covered by the bearing sleeve 11.

[0034] Further, the end cover 13 is provided with a connecting bolt 111 and a limiting bolt 112. The connecting bolt 111 is connected with the end cover 13, the adjusting ring 15 and the bearing sleeve 11 in sequence along the insertion direction, and the limiting bolt 112 is arranged on the outer edge of the end cover 13 to connect the end cover 13 with the inner edge of the upper opening.

[0035] The connecting bolt 111 arranged on the end cover 13 is used to connect the end cover 13, the adjusting ring 15 and the bearing sleeve 11, and form a limiting for the outer ring of the first bearing set 1. When the first bearing set 1 needs to be disassembled and replaced, the first bearing sleeve 11 can be driven to move upwards outside the upper box by lifting the bearing sleeve 11, without disassembling the entire gear box, so as to meet the convenience requirement for replacing the bearing.

[0036] Further, the outer wall of the bearing sleeve 11 is provided with a key groove 113 matched with the flat key 6, and the upper side of the bearing sleeve 11 is provided with a fixing bolt 114 connecting the bearing sleeve 11 with the adjusting ring 15.

[0037] The key groove 113 is used to accommodate the flat key 6, the flat key 6 is fixed in the key groove 113 through the transversely arranged bolt, the part of the flat key 6 not arranged in the key groove 113 cooperates with the limiting step 5, so as to avoid the falling of the first bearing set 1 and the bearing sleeve 11 when the first bearing set 1 is installed, and the fixing bolt 114 is used to connect the bearing sleeve 11 with the adjusting ring 15, so that the adjusting ring 15 presses the outer ring of the first bearing set 1.

[0038] Further, the pressing plate 12 comprises a docking pressing plate 115, a cover plate 116 and a lubricating pipe 117 connecting the docking pressing plate 115 and the cover plate 116, the docking pressing plate 115 is arranged at the upper end of the gear transmission mechanism 3, the lubricating pipe 117 is arranged at the central axis of the cover plate 116, one end of the lubricating pipe 117 is docked with the gear transmission mechanism 3, the other end of the lubricating pipe 117 penetrates the docking pressing plate 115 to connect the oil circuit outside, and the docking pressing plate 115 is arranged on the end cover 13 to cooperate with the end cover 13 to close the upper opening.

[0039] The docking pressing plate 115 is arranged at the upper end of the gear transmission mechanism 3, the lubricating pipe 117 arranged on the docking pressing plate 115 penetrates the docking pressing plate 115 and the cover plate 116 respectively, which facilitates the delivery of lubricating oil into the gear transmission mechanism 3, and the cover plate 116 covers and closes the end cover 13 to reduce the entry of external impurities into the first bearing set 1.

[0040] Further, the docking pressing plate 115, the end cover 13, the adjusting ring 15, the first bearing set 1 and the cover plate 116 form a closed space 118, and a plurality of drill holes 119 are distributed on the docking pressing plate 115, and the plurality of drill holes 119 all penetrate the docking pressing plate 115 to communicate with the closed space 118.

[0041] The drill holes 119 are distributed above the rollers of the first bearing set 1 to facilitate the injection of oil into the rollers of the first bearing set 1.

[0042] Further, the upper side of the docking pressing plate 115 is also provided with an oil delivery pipe 120, the oil delivery pipe 120 comprises a plurality of branch pipe heads 121 and a main oil pipe 122 which is docked with the external oil circuit, each branch pipe head 121 corresponds to a drill hole 119 and is fixed on the docking pressing plate 115 by bolts.

[0043] The oil delivery pipe 120 is aligned with the drill holes 119 through the branch pipe heads 121 to deliver oil into the drill holes 119, thereby meeting the lubrication requirements of the rollers of the first bearing set 1 when the first bearing set 1 needs to be lubricated.

[0044] Further, the gear transmission mechanism 3 comprises a gear shaft 123 and a transmission gear 124, the gear shaft 123 is arranged between the upper box body and the lower box body, and an axial oil channel 125 which communicates with the lubricating pipe 117 and the second bearing set 2 is arranged along the central axis of the gear shaft 123, and the transmission gear 124 is sleeved on the tail end of the gear shaft 123 and engages with the external structure for transmission.

[0045] The gear shaft 123 is provided with the axial oil channel 125, which is used to connect the second bearing set 2 and the external oil circuit. When the second bearing set 2 needs to be lubricated, oil can be transported into the second bearing set 2 through the lubricating pipe 117, thereby meeting the lubrication requirement of the second bearing set 2.

[0046] Further, the first bearing set 1 is a double-row tapered roller bearing or a cylindrical roller bearing.

[0047] The second bearing set 2 is a double-row tapered roller bearing or a cylindrical roller bearing.

[0048] The first bearing set 1 and the second bearing set 2 can be double-row tapered roller bearings or cylindrical roller bearings, so as to meet different use requirements.

[0049] The specific implementation steps are as follows:

[0050] When the first bearing set 1 needs to be disassembled, the butt joint pressing plate 115 is first disassembled, and then the limiting bolt 112 is unscrewed, and the end cover 13 is lifted out. Since the flat key 6 is clamped between the upper box body and the bearing sleeve 11, the entire gear transmission system will not fall down. After the butt joint pressing plate 115 is disassembled, high-pressure oil is injected through the axial oil channel 125 on the upper end surface of the gear shaft 123, so that the inner ring of the first bearing set 1 is loosened. Therefore, the bearing mechanism composed of the bearing sleeve 11, the adjusting ring 15, the flat key 6 and the first bearing set 1 can be lifted out as a whole. The bearing sleeve 11 and the outer ring of the first bearing set 1 are in clearance fit, so that the first bearing set 1 can be easily taken out. When a new bearing is replaced, the new first bearing set 1 is first heated, and then the first bearing set 1 is assembled into the bearing sleeve 11. The adjusting ring 15 is matched and ground, so that the adjusting ring 15 tightly presses the outer ring of the first bearing set 1, and the interference amount is 0.01-0.03 mm. Then, the flat key 6 is assembled into the key groove 113 of the bearing sleeve 11 through the bolt, the connecting bolt 111 is assembled into the bearing sleeve 11, the bearing sleeve 11 is assembled into the upper shaft end of the gear shaft 123 as a whole, the inner ring of the first bearing set 1 is knocked to tightly abut against the shaft shoulder, and then the cover plate 116 is assembled, the bolt is tightened, so that the cover plate 116 tightly presses the inner ring of the first bearing set 1. Then, the adjusting pad 14 is assembled, the transmission gear 124 is matched and ground with the adjusting pad 14, so that the meshing area of the external transmission mechanism is optimized. Then, the end cover 13 is assembled, the limiting bolt 112 is tightened, and finally the butt joint pressing plate 115 is assembled.

[0051] When lubricating, the bore hole 119 on the butt plate 115 is supplied with lubricating oil to lubricate the first bearing set 1, the lubricating oil being input from the central upper end of the gear shaft 123 to the axial oil passage 125 and being output from the lower end close to the second bearing set 2, so as to achieve lubrication of the second bearing set 2.

[0052] The above only discloses a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right range, the person skilled in the art can understand that the whole or part of the processes of the above-mentioned embodiments are implemented, and the equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. A detachable bearing block system, arranged between an upper housing having an upper opening and a lower housing having a lower opening, the system comprising a first bearing set (1), a second bearing set (2), a gear transmission mechanism (3) and a limiting sleeve set (4), characterized in that, The upper open end is provided with a limiting step (5), the first bearing set (1) is arranged at the upper end of the gear transmission mechanism (3) and in contact with the inner wall of the limiting sleeve (4), the second bearing set (2) is arranged at the lower end of the gear transmission mechanism (3) and detachably connected with the lower box body, the limiting sleeve (4) is detachably arranged between the first bearing set (1) and the upper box body, the limiting sleeve (4) is provided with a flat key (6) at the outer side, and the limiting sleeve (4) and the limiting step (5) are matched through the flat key (6) to limit the displacement path of the first bearing set (1).

2. The detachable bearing seat system according to claim 1, wherein the limiting sleeve (4) comprises a bearing sleeve (11), a pressing plate (12), an end cover (13), an adjusting pad (14) and an adjusting ring (15), the bearing sleeve (11) is sleeved at the outer side of the first bearing set (1), the flat key (6) is arranged at the outer side of the bearing sleeve (11), the adjusting ring (15) is pressed at the upper side of the first bearing set (1), the bearing sleeve (11) covers the first bearing set (1) outside, the pressing plate (12) is arranged above the first bearing set (1), the pressing plate (12) and the end cover (13) are connected through bolts, the end cover (13) is detachably buckled to the inner edge of the upper open end through bolts, and the adjusting pad (14) is arranged between the end cover (13) and the upper open end.

3. The detachable bearing seat system according to claim 2, wherein the end cover (13) is provided with a connecting bolt (111) and a limiting bolt (112), the connecting bolt (111) is sequentially connected with the end cover (13), the adjusting ring (15) and the bearing sleeve (11) along the insertion direction, and the limiting bolt (112) is arranged at the outer edge of the end cover (13) to connect the end cover (13) and the inner edge of the upper open end.

4. The detachable bearing seat system according to claim 2, wherein the outer wall of the bearing sleeve (11) is provided with a key groove (113) matched with the flat key (6), and the upper side of the bearing sleeve (11) is provided with a fixing bolt (114) connected with the bearing sleeve (11) and the adjusting ring (15).

5. The detachable bearing seat system according to any one of claims 2-4, wherein The pressing plate (12) comprises a butt joint pressing plate (115), a cover plate (116), and a lubricating pipe (117) connecting the butt joint pressing plate (115) and the cover plate (116), the butt joint pressing plate (115) is arranged at the upper end of the gear transmission mechanism (3), the lubricating pipe (117) is arranged at the central axis of the cover plate (116), one end of the lubricating pipe (117) is butt jointed with the gear transmission mechanism (3), the other end penetrates through the butt joint pressing plate (115) to connect with the external oil circuit, and the butt joint pressing plate (115) is arranged on the end cover (13) to close the upper opening together with the end cover (13).

6. The detachable bearing seat system of claim 5, wherein, The butt joint pressing plate (115), the end cover (13), the adjusting ring (15), the first bearing set (1), and the cover plate (116) form a closed space (118), and a plurality of drill holes (119) are distributed on the butt joint pressing plate (115), and the drill holes (119) penetrate through the butt joint pressing plate (115) to communicate with the closed space (118).

7. The detachable bearing seat system of claim 6, wherein, The upper side of the butt joint pressing plate (115) is further provided with an oil delivery pipe (120), the oil delivery pipe (120) comprises a plurality of branch pipe heads (121) and a main oil pipe (122) butt jointed with the external oil circuit, each branch pipe head (121) corresponds to a drill hole (119) and is fixed on the butt joint pressing plate (115) by a bolt.

8. The detachable bearing seat system of claim 5, wherein, The gear transmission mechanism (3) comprises a gear shaft (123) and a transmission gear (124), the gear shaft (123) is arranged between the upper box body and the lower box body, and an axial oil channel (125) is further arranged along the central axis of the gear shaft (123) to communicate with the lubricating pipe (117) and the second bearing set (2), and the transmission gear (124) is sleeved on the tail end of the gear shaft (123) and is engaged with the external structure to transmit power.

9. The detachable bearing seat system of claim 1, wherein, The first bearing set (1) is a double-row tapered roller bearing or a cylindrical roller bearing.

10. The detachable bearing seat system of claim 1, wherein, The second bearing set (2) is a double-row tapered roller bearing or a cylindrical roller bearing.

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