CN113070660A - Online installation system and method for gear box - Google Patents
Online installation system and method for gear box Download PDFInfo
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- CN113070660A CN113070660A CN202110315758.4A CN202110315758A CN113070660A CN 113070660 A CN113070660 A CN 113070660A CN 202110315758 A CN202110315758 A CN 202110315758A CN 113070660 A CN113070660 A CN 113070660A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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Abstract
The application provides an on-line installation system and an on-line installation method for a gearbox, and relates to the field of machine tools. The gear box on-line mounting system comprises a gear bearing assembly and a gear box body, wherein the gear box body is provided with a first bearing hole matched with a first bearing and a second bearing hole matched with a bearing pack, and the mounting method comprises the following steps: after the axial line of the outer ring of the first bearing is limited to deviate relative to the axial line of the transmission shaft, one end of the gear bearing assembly, which is close to the first bearing, extends into the gear box body from the second bearing hole and moves towards the first bearing hole, and the movement is stopped when the bearing pack is contacted with the second bearing hole; the first bearing is pressed until the first bearing is matched with the first bearing hole and the limiting part is tightly abutted against the outer side of the gear box body. The axis of the outer ring of the first bearing is limited to deviate relative to the axis of the transmission shaft, so that the first bearing and the first bearing hole are prevented from shifting during installation, the installation blockage is caused, the rapid smooth installation is realized, the operation efficiency and the installation precision are improved, and the operation difficulty is effectively reduced.
Description
Technical Field
The application relates to the field of machine tools, in particular to an on-line installation system and an on-line installation method for a gear box.
Background
At present, in the design of a bearing seat of a bearing of a gear box, the bearing seat is generally designed in a half-split type, some bearing seats are designed in a half-split type and are integrated with a box body of the gear box, the purpose of the bearing seat is convenient for an operator to check and replace the bearing of the gear box, most of the bearing seats of a gear shaft with high rotating speed are split type bearing seats, an output shaft with large bearing moment and slow rotating speed, particularly a lower output shaft, is an integrated bearing seat with a through hole type bearing seat at a non-positioning section of the lower output gear shaft due to the position limitation of the design, the diameter of the bearing seat is matched with a bearing arranged on the gear shaft in a small interference tolerance mode, a fixed end is generally designed as a bearing package, when the gear shaft is installed, the lower output gear shaft is installed in an integrated mode after all parts are installed, when the gear shaft of the same type is installed, the operator can use external And (4) jacking the gear shaft into the mounting position by using a jack.
During the actual installation process, installation jamming is easily generated, for example, damage to the bearing seat or the bearing can be caused by rough operation or failure in timely discovery, and the installation quality and the installation progress are seriously affected.
Disclosure of Invention
It is an object of embodiments of the present application to provide an on-line mounting system and method for a gearbox that ameliorates at least one of the problems set forth above.
In a first aspect, an embodiment of the present application provides a gear bearing assembly and a gear box body, where the gear bearing assembly includes a transmission shaft, a first bearing, and a bearing assembly, and the first bearing is axially immovably and circumferentially rotatably assembled at a free end of the transmission shaft; the bearing assembly comprises a second bearing and a bearing pack, the bearing pack is arranged on an outer ring of the second bearing and synchronously moves with the second bearing, a limiting part is arranged at one end of the bearing pack, which is far away from the first bearing, along the circumferential direction of the bearing pack, and the second bearing is rotatably assembled at the fixed end of the transmission shaft in the axial direction, the circumferential direction and the static direction; the two opposite ends of the gear box body are respectively provided with a first bearing hole matched with the first bearing and a second bearing hole matched with the bearing pack, and the installation method comprises the following steps:
and S1, after the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft is limited, extending one end of the gear bearing assembly close to the first bearing into the gear box body from the second bearing hole and moving the gear bearing assembly towards the first bearing hole, and stopping moving the gear bearing assembly when the bearing pack is contacted with the second bearing hole.
And S2, pressing the limiting part to one side close to the first bearing until the first bearing is matched with the first bearing hole and the limiting part is tightly abutted against the outer side of the gear box body.
The inventor finds that in the actual production process, most of first bearings are self-aligning bearings, so that external acting force or hoisting of the first bearings is uneven, the outer rings of the first bearings can swing due to inclination or dead weight of the outer rings, particularly in the installation process, the outer rings of the bearings can swing freely and are matched with the integrated through hole bearing seat in a small tolerance mode, so that the axis of the outer rings of the first bearings deviates relative to the axis of a transmission shaft, and installation blocking is caused due to the deviation of the outer rings of the first bearings in the installation process, and the technical problem is caused.
Based on the discovery, in the actual installation process, the first bearing and the bearing assembly are assembled on the transmission shaft, the first bearing and the bearing assembly are guaranteed to be rigidly connected through the transmission shaft, then the outer ring of the first bearing is positioned, the axis of the outer ring of the first bearing is limited to be deviated relative to the axis of the transmission shaft, the whole assembly is used as an assembly A, the assembly A is placed into the gear box body from the second bearing hole according to a specific sequence as a whole, at the moment, the first bearing can smoothly enter the first bearing hole due to the fact that the axis of the outer ring of the first bearing is not deviated relative to the axis of the transmission shaft, installation blocking is avoided, then the first bearing and the bearing assembly are guaranteed to be smoothly installed to a target position through jacking, and construction difficulty is effectively reduced.
In a possible embodiment, the gearbox on-line mounting system comprises a fixing mechanism comprising an adjustment mechanism and at least three position limiting vanes cooperating with the outer ring of the first bearing.
In step S1, the method of restricting the axial displacement of the outer ring of the first bearing with respect to the axial line of the propeller shaft includes:
the adjusting mechanism is detachably connected with the end face of the free end, the adjusting mechanism limits the limiting blades to be tightly attached to one side, away from the second bearing, of the outer ring of the first bearing, and at the moment, the orthographic projection of each limiting blade on the first bearing does not extend out of the outer peripheral diameter of the first bearing.
In the above-mentioned mode of setting up, utilize the setting of at least three spacing blade, one side that the second bearing was kept away from to the outer lane that can effectively support first bearing utilizes adjustment mechanism's setting, makes the one side that the second bearing was kept away from to the outer lane of every spacing blade and first bearing keep closely laminating, and the skew takes place for the outer lane of restriction first bearing to above-mentioned fixed establishment is also convenient for follow-up dismantlement, and does not influence the integrality of first bearing.
In the actual installation process, the fixing mechanism needs to extend out of the gear box body through the first bearing hole along with the gear bearing assembly in the gear box body, so when the fixing mechanism limits the deviation of the axis of the outer ring of the first bearing relative to the axis of the transmission shaft, the orthographic projection of each limiting blade on the first bearing does not extend out of the maximum range limited by the outer ring of the first bearing, and the smooth implementation of the installation method is ensured.
In a possible embodiment, each of the retaining vanes has a distance between an orthographic projection of the first bearing and an outer circumference of the first bearing of 0.50-2mm when the retaining vane is held in close proximity to a side of the outer race of the first bearing remote from the second bearing.
In the implementation process, the reasonable distance is selected, so that the installation method is smoothly implemented, the contact area of the limiting blade and the outer ring of the first bearing is increased, and the stability of limiting the outer ring of the first bearing by the limiting blade is improved.
In one possible embodiment, in step S2, before the stopper is pressed against the side close to the first bearing, the axis of the bearing is restricted from being displaced relative to the axis of the second bearing hole.
In the actual installation process, the inventor finds that the similar situation of the first bearing exists in the process of assembling the bearing assembly and the gear box, the bearing and the second bearing hole are subjected to jacking distortion due to installation deviation in the installation process, the assembly A needs to be pushed out in the whole direction when the bearing and the second bearing hole are subjected to jacking distortion, then the bearing and the outer ring of the first bearing are corrected and then installed again, the installation difficulty is high, and the efficiency of site construction and the installation quality are seriously influenced.
Therefore, in the implementation process, before the limiting part is pressed towards one side close to the first bearing, the bearing is positioned, the axis of the bearing is limited to deviate relative to the axis of the second bearing hole, the technical problem that the installation is difficult due to the deviation of the first bearing and the bearing package in the installation process is further solved, and the operation efficiency is improved under the condition that the installation quality is guaranteed.
In one possible embodiment, the gearbox on-line mounting system includes a positioning mechanism comprising: and the limiting rods are arranged at intervals along the circumferential direction of the second bearing hole.
In step S2, the method of restricting the axis of the bearing from being displaced with respect to the axis of the second bearing hole includes:
and each limiting rod is respectively penetrated through the limiting part in a sliding manner and then detachably connected with the gear box body, so that the axial line of the bearing is limited to deviate relative to the axial line of the second bearing hole.
The positioning mechanism is used for limiting the deviation of the axis of the bearing relative to the axis of the second bearing hole, and then the component A is ejected into the gear box, so that the quick smooth installation of the online installation system of the gear box is realized, the traditional installation mode of installing the original installation system by using a knocking method or externally and temporarily adding a stress point is changed, the operation efficiency is improved, the installation precision of the equipment is improved, and the operation difficulty is reduced. The installation can be ensured to be carried out smoothly.
In a second aspect, the present invention provides an on-line installation system for a gearbox, which implements the installation method provided in the first aspect of the present application, and includes a gear bearing assembly, a gearbox housing, a fixing mechanism, and a pressing mechanism.
The fixing mechanism comprises a fixing plate and an adjusting mechanism.
The fixed plate is provided with at least three limiting blades which are arranged at intervals along the circumferential direction of the fixed plate, and each limiting blade extends to one side far away from the fixed plate; the adjusting mechanism is detachably connected with the free end and is used for keeping the limiting blade and the outer ring of the first bearing tightly attached to limit the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft.
Wherein when the limiting blades limit the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft, the orthographic projection of each limiting blade on the first bearing does not extend out of the outer periphery of the first bearing.
In the implementation process, the axis of the outer ring of the first bearing is limited to deviate relative to the axis of the transmission shaft by the arrangement of the fixing mechanism, and the fixing mechanism is convenient to disassemble subsequently and does not influence the integrity of the first bearing. When the fixing mechanism limits the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft, the orthographic projection of each limiting blade on the first bearing does not extend out of the maximum range limited by the outer ring of the first bearing, so that the smooth implementation of the mounting method is ensured.
In a possible embodiment, the length of the limiting blade in the direction of extension thereof is adjustable.
In the implementation process, the specifications of the first bearings corresponding to the gear box on-line mounting systems are different due to different specifications, so that the length of the limiting blades along the extending direction of the limiting blades is adjustable in order to improve the application range of the fixing mechanism, the length of the limiting blades can be adjusted according to actual requirements, the fixing mechanism is made to adapt to the first bearings of different specifications, and the stability of limiting the outer rings of the first bearings by the limiting blades is guaranteed.
In one possible embodiment, the position limiting vanes include a first vane, a second vane, and a first locking member.
The first blade is connected with the fixing plate, and the first blade is provided with a limiting hole arranged along the extending direction of the first blade.
The second blade is provided with a limiting part, the limiting part is arranged in the limiting hole in a penetrating mode, and the limiting part can slide along the extending direction of the limiting hole.
The first locking piece is detachably arranged at one end, extending out of the limiting hole, of the limiting piece and used for limiting the first blade and the second blade to move relatively.
In the implementation process, the length of the limiting blade in the extending direction of the limiting blade is adjustable by means of the matching of the first blade and the second blade, and the stability of the limiting blade after the length adjustment is guaranteed by means of the arrangement of the first locking piece.
In one possible embodiment, the first blade is provided with a guide groove extending along the length direction of the first blade, and the second blade is slidably fitted in the guide groove.
In the above-mentioned realization process, utilize the setting of guide slot, the stationarity when not only improving its length of spacing blade adjustment, inject the stability between first blade and the second blade after the adjustment simultaneously, avoid rocking etc. makes the outer lane swing of the first bearing of restriction that it can be stable.
In one possible embodiment, the gearbox on-line mounting system includes a positioning mechanism comprising: the limiting rods are arranged along the circumferential direction of the second bearing hole at intervals, and each limiting rod penetrates through the limiting part in a sliding mode and then is detachably connected with the gear box body so as to limit the axial line of the bearing to deviate relative to the axial line of the second bearing hole.
In the implementation process, the axis of the bearing is limited to deviate relative to the axis of the second bearing hole by means of the positioning mechanism, and then the component A is ejected into the gear box, so that the rapid smooth installation of the online installation system of the gear box is realized, the traditional installation mode that the original knocking method is used or the stress point is added externally temporarily is changed, the operation efficiency is improved, the installation precision of the equipment is improved, and the operation difficulty is reduced. The installation can be ensured to be carried out smoothly.
In a possible embodiment, the jacking mechanism comprises a limiting sleeve, a squeezing plate and a power mechanism.
Wherein the limiting sleeve is slidably sleeved on each limiting rod.
The extrusion plate is connected with each limiting rod in a sliding mode, and each limiting sleeve is located between the extrusion plate and the limiting portion.
The power mechanism is in transmission connection with the extrusion plate and is used for driving the limiting part to move towards one side close to the first bearing hole.
In the implementation process, the pressure plate is arranged to ensure that the limiting sleeves are stressed uniformly, and then the power mechanism is used to ensure that the bearing package after limited displacement can be stressed uniformly, and is stably and smoothly jacked to the limiting part to be tightly abutted against the outer side of the gearbox body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a gearbox in-line mounting system;
FIG. 2 is a schematic view of a first perspective of the securing mechanism 140 a;
FIG. 3 is a schematic structural view of a second schematic perspective of the securing mechanism 140 b;
FIG. 4 is a structural schematic diagram of a second schematic view of the securing mechanism 140 a;
fig. 5 is a schematic structural diagram of a first schematic view of the pressing mechanism.
Icon: 10-gearbox in-line installation system; 101-a first bearing seat; 103-a second bearing block; 110-a drive shaft; 111-free end; 113-hoisting holes; 114-a fixed end; 115-gear; 120-a first bearing; 130-a bearing assembly; 131-a second bearing; 133-bearing contract; 1331-a limiting part; 140 a-a securing mechanism; 140 b-a securing mechanism; 141-a fixed plate; 143-limit blades; 144-a first blade; 1441-limiting hole; 145-a second blade; 1451-a stopper; 146-a first locking member; 147-an adjustment mechanism; 1471-a compacting screw; 1473-compression nut; 1475-a gasket; 151-a stop lever; 160-a top pressing mechanism; 161-a stop collar; 163-an extrusion plate; 165-power mechanism; 166-seat plate; 167-second locking member.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, an on-line mounting system 10 for a gearbox includes a gearbox housing, a gear bearing assembly, a fixing mechanism 140a, a pressing mechanism 160, and a positioning mechanism.
The opposite ends of the gear housing have a first bearing seat 101 and a second bearing seat 103, the first bearing seat 101 has a first bearing hole (not shown) matching with the first bearing 120, the second bearing seat 103 has a second bearing hole (not shown) matching with the bearing package 133, wherein the first bearing hole has a diameter not larger than the second bearing hole.
The gear bearing assembly includes a drive shaft 110, a first bearing 120, a bearing assembly 130.
Wherein the transmission shaft 110 extends from the free end 111 to the fixed end 114, wherein the first bearing 120 is axially immovably and circumferentially rotatably assembled at the free end 111 of the transmission shaft 110, the bearing assembly 130 is axially immovably and circumferentially rotatably assembled at the fixed end 114 of the transmission shaft 110, the transmission shaft 110 is provided with a gear 115 for being mounted in a gear box, and the gear 115 is located between the first bearing 120 and the bearing assembly 130.
The first bearing 120 may be a self-aligning bearing.
The bearing assembly 130 includes a second bearing 131 and a bearing pack 133, wherein the bearing pack 133 is sleeved on an outer ring of the second bearing 131 and moves synchronously therewith, and a limiting portion 1331 is disposed at one end of the bearing pack 133 in a circumferential direction.
Specifically, the bearing package 133 has a receiving groove, the limiting portion 1331 is located at an opening end of the receiving groove, the second bearing 131 is received in the receiving groove, an inner ring of the second bearing 131 is assembled at the fixing end 114, an outer ring of the second bearing 131 is fixed to the bearing package 133 in a clamping manner, and the like, so that the bearing package 133 can rotate relative to the inner ring of the second bearing 131, and a certain gap is left between an end surface of the second bearing 131 and a bottom wall of the receiving groove.
Referring to fig. 1 and fig. 2, the fixing mechanism 140a includes a fixing plate 141 and an adjusting mechanism 147.
Wherein, the fixing plate 141 is, for example, a circular plate, the fixing plate 141 is provided with at least three limiting vanes 143 arranged at intervals along the circumferential direction thereof, and each limiting vane 143 extends to a side away from the fixing plate 141. Optionally, the fixing plate 141 is provided with at least three position-limiting vanes 143 arranged at equal intervals along the circumference thereof.
Besides, as shown in fig. 3, in some fixing mechanisms 140b provided by the present application, the number of the limiting blades 143 may be three, and in the fixing mechanism 140a provided by the present embodiment, the number of the limiting blades 143 is four as shown in fig. 4.
The adjusting mechanism 147 is detachably connected to the free end 111 and is used for keeping the limiting blade 143 and the outer ring of the first bearing 120 in close contact, and by using the friction force between the limiting blade 143 and the outer ring of the first bearing 120 and the supporting effect of the limiting blade 143 on the outer ring of the first bearing 120, the outer ring of the first bearing 120 is limited from axially shifting back and forth relative to the inner ring, and the outer ring of the first bearing 120 is not damaged, so that the axis of the outer ring of the first bearing 120 is limited from shifting relative to the axis of the transmission shaft 110.
It should be noted that the detachable connection of the adjusting mechanism 147 to the end surface of the free end 111 includes, but is not limited to, clamping, and may also be a threaded connection.
Optionally, with continued reference to fig. 2 and fig. 4, the end surface of the free end 111 of the transmission shaft 110 is provided with a hoisting hole 113, the adjusting mechanism 147 includes a compression screw 1471 and a compression nut 1473, one end of the compression screw 1471 is connected with the compression nut 1473 in a threaded manner, the other end of the compression screw 1471 penetrates the fixing plate 141 in a sliding manner and then is connected with the hoisting hole 113 in a threaded manner, and then the fixing plate 141 is driven to move towards the free end 111 by the cooperation of the compression screw 1471 and the compression nut 1473, and the limiting blade 143 is locked when being tightly attached to the outer ring of the first bearing 120, so as to limit the limiting blade 143 from being detached from the outer ring of the first bearing 120, and further limit the axis of the outer.
And in order to further improve the pressing effect, so that the limiting blade 143 is tightly attached to the outer ring of the first bearing 120, the adjusting mechanism 147 further includes a washer 1475, wherein the washer 1475 is sleeved on the pressing screw 1471, and the washer 1475 is located between the pressing nut 1473 and the fixing plate 141.
It should be noted that, in an actual installation process, the fixing mechanism 140a for fixing the first bearing 120 needs to extend toward and out of the first bearing hole along with the first bearing 120 from the second bearing hole, so in order to avoid the problem of jamming caused by an excessively large length of the limiting blade 143, when the limiting blade 143 limits the axial deviation of the outer ring of the first bearing 120 relative to the axial line of the transmission shaft 110, the orthogonal projection of each limiting blade 143 on the first bearing 120 does not extend out of the outer peripheral diameter of the first bearing 120. Here, the outer circumference of the first bearing 120 refers to the outer circumference of the outer ring of the first bearing 120.
Alternatively, when the axis of the outer ring of the first bearing 120 is limited to be offset relative to the axis of the transmission shaft 110, the distance between the orthographic projection of each limiting blade 143 and the outer circumference of the first bearing 120 is 0.50-2mm, for example, the distance between the orthographic projection of the first bearing 120 and the outer circumference of the first bearing 120 is 0.5mm, 0.8mm, 1mm, 1.5mm, 1.7mm or 2mm, and the like, which can be specifically defined according to actual requirements.
Since the diameters of the first bearing holes have different specifications, in an actual use process, the limiting blade 143 with a corresponding length needs to be arranged according to the specific diameter of the first bearing hole.
Optionally, the length of the limiting blade 143 along the extending direction thereof is adjustable, so that the length of the limiting blade 143 can be adjusted according to actual requirements, so that the fixing mechanism 140a is adapted to the first bearings 120 with different specifications, which not only improves the application range of the fixing mechanism 140a, but also can adjust the distance between the orthographic projection of the limiting blade 143 on the first bearing 120 and the outer circumference of the first bearing 120.
Specifically, the restricting blade 143 includes a first blade 144, a second blade 145, and a first locking member 146.
The first blade 144 and the second blade 145 may be in the shape of a strip, a square, a circle, etc., respectively, and in this embodiment, the first blade 144 and the second blade 145 are in the shape of a strip.
The first blade 144 is connected to the fixing plate 141, and the first blade 144 is provided with a limiting hole 1441 arranged along the extending direction thereof. The second blade 145 has a limiting member 1451, the limiting member 1451 is disposed in the limiting hole 1441, and the limiting member 1451 can slide along the extending direction of the limiting hole 1441. The first locking member 146 is disposed at an end of the limiting member 1451 extending out of the limiting hole 1441, and is used for limiting the relative movement of the first blade 144 and the second blade 145.
That is, the second blade 145 and the first locking member 146 are respectively located at both sides of the first blade 144. Optionally, the second blade 145 is located on a side of the first blade 144 close to the free end 111, and the limiting member 1451 is located on a side of the second blade 145 facing away from the transmission shaft 110.
The limiting member 1451 may be fixed to the second blade 145 by welding or riveting, or may be detachably fixed to the second blade 145 by using a screw or an interference fit, and it should be noted that, when the limiting member 1451 is detachably fixed to the second blade 145 by using a screw or an interference fit, the limiting member 1451 does not extend out of one side of the second blade 145 departing from the first blade 144 after the two are assembled.
In this embodiment, the limiting member 1451 is a limiting screw, and the position member is fixed on the second blade 145 by a threaded connection, and at this time, the first locking member 146 is, for example, a limiting nut engaged with the limiting screw. The width of the first locking member 146 is greater than the width of the limiting hole 1441, so that the first locking member 146 is prevented from entering the limiting hole 1441, and the first blade 144 and the second blade 145 can be locked by the first locking member 146.
The first blade 144 has a guide groove (not shown) on a side facing the second blade, wherein the guide groove extends along a length direction of the first blade 144, the second blade 145 is slidably inserted into the guide groove, and the limiting hole 1441 is located in the guide groove and communicates with the guide groove.
Referring to fig. 1, the positioning mechanism includes at least two spacing rods 151, and each of the spacing rods 151 is slidably disposed through the spacing portion 1331 and detachably connected to the gear housing to limit the axial line of the bearing 133 from deviating from the axial line of the second bearing hole.
When the number of the stopper rods 151 is three or more, two of the stopper rods 151 are diagonally disposed, and the remaining stopper rods 151 are randomly disposed on both sides of the diagonal, or the stopper rods 151 are equidistantly spaced along the circumferential direction of the bearing pack 133.
In this embodiment, when the number of the stopper rods 151 is two, the two stopper rods 151 are diagonally arranged to limit the axis of the bearing 133 from being offset with respect to the axis of the second bearing hole.
Optionally, the manner of detachably connecting the limiting rod 151 and the gear box body includes, but is not limited to, clamping, and may also be a threaded connection, in this embodiment, the limiting rod 151 adopts a full-tooth screw, that is, the limiting rod 151 and the gear box body are in a threaded connection.
Referring to fig. 1 and 5, the pressing mechanism 160 includes a limiting sleeve 161, a pressing plate 163 and a power mechanism 165.
The limiting sleeve 161 is slidably sleeved on each limiting rod 151; the extrusion plate 163 is slidably connected with each limiting rod 151, and each limiting sleeve 161 is positioned between the extrusion plate 163 and the limiting part 1331; the power mechanism 165 is in transmission connection with the extrusion plate 163, and is used for driving the extrusion plate 163 to move towards one side close to the limiting part 1331 so as to extrude the limiting part 1331.
The power mechanism 165 may be a cylinder, and for convenience of use and miniaturization, the power mechanism 165 is a jack, specifically, for example, a hydraulic jack.
In this embodiment, the power mechanism 165 is connected to the positioning mechanism for convenience of use.
Specifically, the pressing mechanism 160 further includes: a seat plate 166 and a second locking member 167.
The seat plate 166 is connected with each limiting rod 151 in a sliding mode, the seat plate 166 is located on one side, away from the limiting sleeve 161, of the extrusion plate 163, the base of the power mechanism 165 is fixed to the seat plate 166, and the driving shaft of the power mechanism 165 is connected with the extrusion plate 163; the second locking member 167 is detachably sleeved on each of the limiting rods 151 and limits the seat plate 166 to be away from the pressing plate 163.
That is, the second locker 167 is located at a side of the seat plate 166 away from the pressing plate 163. The second locking member 167 may be a pressing nut engaged with the rod 151.
Referring to fig. 1, 2, 4 and 5, the present application further provides a method for installing a gearbox on-line installation system 10, which includes:
s1, the first bearing 120 and the bearing assembly 130 are respectively assembled on both ends of the transmission shaft 110 in an axially immovable and circumferentially rotatable manner, and the position-limiting portion 1331 is located on the side of the bearing 133 away from the first bearing 120, so as to obtain a gear bearing assembly.
S2, limiting the axial deviation of the outer ring of the first bearing 120 relative to the axial deviation of the transmission shaft 110.
Wherein the step of limiting the axial deviation of the outer ring of the first bearing 120 relative to the axial deviation of the transmission shaft 110 comprises: the inner ring fixing plate 141 of the first bearing 120 installed at the free end 111 of the transmission shaft 110 is firstly detached, a designated position is placed for facilitating final step of reinstallation, an adjusting mechanism is detachably connected with the end face of the free end, the adjusting mechanism limits the limiting blades to be tightly attached to one side, away from the second bearing, of the outer ring of the first bearing, and at the moment, the orthographic projection of each limiting blade on the first bearing does not extend out of the outer circumference of the first bearing.
In a specific operation, one end of the compression screw 1471 is threaded through the washer 1475 and the fixing plate 141 in sequence and then is connected with the hoisting hole 113 at the free end 111 of the transmission shaft 110, and the other end is threaded with the compression nut 1473.
At this time, a movable gap is reserved between the fixing plate 141 and the end surface of the first bearing 120, that is, a certain amount of play is reserved, so as to ensure that the fixing plate 141 can rotate along the transmission shaft 110, then the second blade 145 is inserted into the guide groove of the first blade 144, the fixing plate 141 is rotated, the limiting member 1451 passes through the limiting groove and is in threaded connection with the second blade 145, the second locking member 167 is in threaded connection with the side of the limiting member 1451 extending out of the first blade 144, the second locking member 167 locks and limits the relative movement of the first blade 144 and the second blade 145, at this time, the distance between the orthographic projection of the limiting blade 143 on the first bearing 120 and the outer circumference of the first bearing 120 is 0.50-2mm, then the pressing nut 1473 is further moved until the second blade 145 is in close contact with the outer ring of the first bearing 120, at this time, the fixing plate 141 cannot rotate, and at the same time, the second blade 145 and, the first bearing 120 and the first bearing hole are not blocked during installation, and the assembly, disassembly and adjustment are convenient.
In addition to the above operation, in another specific operation, the length of the limiting blade 143 can be adjusted in advance, the first locking member 146 is used to limit the relative movement between the first blade 144 and the second blade 145, the fixing mechanism 140a is fixed to the free end 111 of the transmission shaft 110, and the adjusting mechanism 147 is used to keep the limiting blade 143 in close contact with the outer ring of the first bearing 120 so as to limit the axial deviation of the outer ring of the first bearing 120 relative to the axial deviation of the transmission shaft 110.
For convenience of description, a gear bearing assembly that restricts the axis of the outer ring of the first bearing from being offset with respect to the axis of the transmission shaft using a fixing mechanism is named assembly a below.
S3, extending the end of the component a close to the first bearing 120 into the gear box from the second bearing hole and moving toward the first bearing hole, and stopping moving when the bearing pack 133 contacts the second bearing hole.
That is, as shown in fig. 1, the component a is lifted to the installation position of the transmission shaft 110 of the gear 115 box, the component a is integrally inserted into the gear box, the bearing 133 is first contacted with the second bearing hole to stop moving when forming the positioning, wherein the horizontal arrow in fig. 1 indicates the installation direction.
S4, pressing the limiting portion 1331 toward the side close to the first bearing 120 until the first bearing 120 is matched with the first bearing hole and the limiting portion 1331 is tightly contacted with the outside of the gear box body.
That is, after positioning, the whole moving assembly a is pressed against the limiting portion 1331, so that the first bearing 120 is matched with the first bearing hole, the bearing pack 133 is matched with the second bearing hole, and the limiting portion 1331 is tightly abutted against the outer side of the gear box body.
Optionally, for better positioning and avoiding interference, before pressing the limiting portion 1331 to a side close to the first bearing 120, the step S3 further includes: the axis of the bearing pocket 133 is restricted from being offset with respect to the axis of the second bearing hole.
The manner of limiting the axis of the bearing 133 from being offset with respect to the axis of the second bearing hole includes:
the second bearing seat 103 is provided with a plurality of screw holes arranged along the circumferential direction of the second bearing hole, the limiting portion 1331 is provided with through holes corresponding to the screw holes, the through holes of the limiting portion 1331 are aligned with the screw holes of the second bearing seat 103, a pair of limiting rods 151 are arranged along the opposite angles of the second bearing seat 103 and respectively penetrate through the through holes of the limiting portion 1331 to be in threaded connection with the corresponding screw holes, then a limiting sleeve 161 is sleeved on each limiting rod 151, then a pressing plate 163 is sleeved on the two limiting rods 151, a seat plate 166 is sleeved on the two limiting rods 151, and finally a nut serving as a second locking member 167 is installed on each limiting rod 151, wherein the distance between the pressing plate 163 and the seat plate 166 is not less than the length of a placeable jack, and the distance between the pressing plate 163 and the seat plate 166 is realized.
The base of the jack is fixed on the seat plate 166, the driving shaft of the jack is connected with the extrusion plate 163, and in the using process, the arrangement of the extrusion plate 163 can furthest ensure that the bearing pack 133 of the transmission shaft 110 and the bearing pack 133 cannot move when being pushed into the gear 115 box, so that the installation smoothness is ensured.
Finally, after the transmission shaft 110 is installed in place, the fixing mechanism 140a and the pressing mechanism 160 are removed, and the installation is completed by gradually returning the parts of the equipment.
In conclusion, according to the on-line installation system and the installation method of the gear box, the first bearing outer ring is fixed through the fixing mechanism in the on-line installation system of the gear box, so that when the on-line installation system is installed, the first bearing outer ring cannot deviate due to uneven stress and then moves with the first bearing hole to cause installation blocking, quick smooth installation is realized, the traditional installation mode that the original knocking method is used or a stress point is temporarily added on the outside for installation is changed, the operation efficiency and the installation precision are improved, and the operation difficulty is effectively reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method of installing an in-line gearbox mounting system, the in-line gearbox mounting system comprising: the gear bearing assembly comprises a transmission shaft, a first bearing and a bearing assembly, wherein the first bearing is axially immovably and circumferentially and rotatably assembled at the free end of the transmission shaft; the bearing assembly comprises a second bearing and a bearing pack, the bearing pack is arranged on an outer ring of the second bearing and synchronously moves with the second bearing, a limiting part is arranged at one end of the bearing pack, which is far away from the first bearing, along the circumferential direction of the bearing pack, and the second bearing is axially immovable and is rotatably assembled at the fixed end of the transmission shaft in the circumferential direction; the opposite two ends of the gearbox body are respectively provided with a first bearing hole matched with the first bearing and a second bearing hole matched with the bearing, and the mounting method is characterized by comprising the following steps:
s1, after the axial line of the outer ring of the first bearing is limited to be deviated relative to the axial line of the transmission shaft, one end, close to the first bearing, of the gear bearing assembly extends into the gear box body from a second bearing hole and moves towards the first bearing hole, and the movement of the gear bearing assembly stops when the bearing contacts with the second bearing hole;
and S2, pressing the limiting part to one side close to the first bearing until the first bearing is matched with the first bearing hole and the limiting part is tightly abutted against the outer side of the gear box body.
2. The mounting method according to claim 1, wherein the gearbox on-line mounting system comprises a fixing mechanism comprising an adjustment mechanism and at least three position limiting vanes cooperating with an outer ring of the first bearing;
in step S1, the method of restricting the axial displacement of the outer ring of the first bearing with respect to the axial line of the propeller shaft includes:
and connecting an adjusting mechanism with the end face of the free end in a detachable manner, wherein the adjusting mechanism limits the limiting blades to be tightly attached to one side, away from the second bearing, of the outer ring of the first bearing, and at the moment, the orthographic projection of each limiting blade on the first bearing does not extend out of the outer diameter of the first bearing.
3. The mounting method according to claim 2, wherein when the position restricting blade is held in close contact with a side of the outer race of the first bearing away from the second bearing, a distance between an orthographic projection of the first bearing and an outer peripheral diameter of the first bearing is 0.50 to 2 mm.
4. The mounting method according to claim 1, wherein in step S2, before the stopper portion is pressed against the side close to the first bearing, the axis of the bearing is restricted from being displaced with respect to the axis of the second bearing hole.
5. The method of mounting of claim 4, wherein the gearbox on-line mounting system comprises a positioning mechanism comprising: at least two limiting rods are arranged along the circumferential direction of the second bearing hole at intervals;
in step S2, the means for restricting the axis of the bearing from being displaced with respect to the axis of the second bearing hole includes:
and each limiting rod is respectively slidably arranged on the limiting part in a penetrating way and then detachably connected with the gearbox body so as to limit the axial line of the bearing to deviate relative to the axial line of the second bearing hole.
6. An in-line gearbox mounting system for carrying out the mounting method of claim 1 comprising said gear bearing assembly, said gearbox housing, securing means and jacking means;
the top pressing mechanism is in transmission connection with the limiting part and is used for driving the gear bearing assembly to move towards one side close to the first bearing hole;
the fixing mechanism includes:
the fixing plate is provided with at least three limiting blades which are arranged at intervals along the circumferential direction of the fixing plate, and each limiting blade extends to one side far away from the fixing plate;
the adjusting mechanism is detachably connected with the free end and is used for keeping the limiting blade and the outer ring of the first bearing in close fit so as to limit the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft;
wherein when the limiting blades limit the axial deviation of the outer ring of the first bearing relative to the axial deviation of the transmission shaft, the orthographic projection of each limiting blade on the first bearing does not extend out of the outer periphery of the first bearing.
7. A gearbox line mounting system as defined in claim 6 wherein said spacing blade is adjustable in length along its direction of extension.
8. The gearbox on-line mounting system of claim 7, wherein the spacing blade comprises:
the first blade is connected with the fixing plate and provided with a limiting hole arranged along the extending direction of the first blade;
the second blade is provided with a limiting piece, the limiting piece penetrates through the limiting hole, and the limiting piece can slide along the extending direction of the limiting hole;
the first locking part is detachably arranged at one end, extending out of the limiting hole, of the limiting part and used for limiting the relative movement of the first blade and the second blade.
9. The gearbox in-line mounting system of claim 6, comprising a positioning mechanism comprising: and each limiting rod is respectively arranged in the limiting part in a sliding and penetrating mode and then detachably connected with the gear box body so as to limit the axial line of the bearing to deviate relative to the axial line of the second bearing hole.
10. The gearbox in-line mounting system of claim 9, wherein the jacking mechanism comprises:
the limiting sleeve is sleeved on each limiting rod in a sliding manner;
the extrusion plate is connected with each limiting rod in a sliding mode, and each limiting sleeve is located between the extrusion plate and the limiting part;
and the power mechanism is in transmission connection with the extrusion plate and is used for driving the limiting part to move towards one side close to the first bearing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315758.4A CN113070660B (en) | 2021-03-24 | 2021-03-24 | Online installation system and method for gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315758.4A CN113070660B (en) | 2021-03-24 | 2021-03-24 | Online installation system and method for gear box |
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| Publication Number | Publication Date |
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| CN113070660A true CN113070660A (en) | 2021-07-06 |
| CN113070660B CN113070660B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110315758.4A Active CN113070660B (en) | 2021-03-24 | 2021-03-24 | Online installation system and method for gear box |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240463A (en) * | 1967-04-14 | 1971-07-28 | Skefko Ball Bearing Company Lt | Improvements in or relating to friction clutches and operating mechanisms |
| CN102654189A (en) * | 2012-05-17 | 2012-09-05 | 中国葛洲坝集团股份有限公司 | Device for mounting and dismounting drilling roller and reduction gearbox |
| CN104832628A (en) * | 2015-05-12 | 2015-08-12 | 连云港金核铸造厂 | Farm-oriented mechanical gear box casing |
| CN111963652A (en) * | 2020-08-06 | 2020-11-20 | 昆山新莱洁净应用材料股份有限公司 | Gear box and mounting method thereof |
-
2021
- 2021-03-24 CN CN202110315758.4A patent/CN113070660B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240463A (en) * | 1967-04-14 | 1971-07-28 | Skefko Ball Bearing Company Lt | Improvements in or relating to friction clutches and operating mechanisms |
| CN102654189A (en) * | 2012-05-17 | 2012-09-05 | 中国葛洲坝集团股份有限公司 | Device for mounting and dismounting drilling roller and reduction gearbox |
| CN104832628A (en) * | 2015-05-12 | 2015-08-12 | 连云港金核铸造厂 | Farm-oriented mechanical gear box casing |
| CN111963652A (en) * | 2020-08-06 | 2020-11-20 | 昆山新莱洁净应用材料股份有限公司 | Gear box and mounting method thereof |
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| CN113070660B (en) | 2022-02-01 |
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