CN116045880B - Hub axial float gap control device - Google Patents
Hub axial float gap control device Download PDFInfo
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- CN116045880B CN116045880B CN202210253486.4A CN202210253486A CN116045880B CN 116045880 B CN116045880 B CN 116045880B CN 202210253486 A CN202210253486 A CN 202210253486A CN 116045880 B CN116045880 B CN 116045880B
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- 238000001514 detection method Methods 0.000 claims abstract description 99
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 68
- 230000008859 change Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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Abstract
The invention relates to the technical field of axle assemblies and discloses a hub axial play gap control device, which comprises a frame, a clamping unit and two detection units, wherein the two detection units are arranged on the frame at intervals and are opposite to each other; the clamping unit is arranged on the frame; each detection unit comprises a bridge assembly positioning assembly, a hub displacement acquisition assembly and a first driving assembly which are arranged on the frame, and the control device comprises a second driving assembly; the first driving component is used for pushing the hub to a first limit position along the direction of the end part of the bridge assembly pointing to the center of the bridge assembly, the second driving component is used for pushing the hub to a second limit position along the direction of the center of the bridge assembly pointing to the end part of the bridge assembly, and the hub displacement acquisition component is used for acquiring the displacement between the first limit position and the second limit position. The hub axial play gap control device solves the problem that the axial play gap of the hub is easily interfered by human factors by manually measuring and calculating the axial play gap in the prior art.
Description
Technical Field
The invention relates to the technical field of axle assemblies, in particular to a hub axial play gap control device.
Background
In an axle assembly (for example, a trailer axle assembly), a hub is mounted on a shaft through a tapered roller bearing, and a bearing gap of the tapered roller bearing (for short, a hub bearing) on which the hub is mounted can be adjusted by tightening a spindle head nut. However, if the spindle head nut is too tight, the hub bearing clearance is too small; if the spindle head nut is too loose, the hub bearing clearance is too large. Thus, it is necessary to measure the bearing clearance of the hub.
In the prior art, the axial play gap of the hub is manually measured and calculated, however, the manual measurement and calculation are easily interfered by human factors, inaccurate measurement data and calculation results are easily caused, and even the axial play gap of the hub is not in accordance with the technical requirements.
Disclosure of Invention
The invention provides a hub axial play gap control device, which can solve the problem that the axial play gap of a hub is easy to be interfered by human factors by manually measuring and calculating the axial play gap in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a hub axial play gap control device, comprising:
a frame;
the two detection units are arranged on the frame at intervals and are opposite to each other, are used for jointly positioning a bridge assembly conveyed to a detection station, and are respectively used for detecting the axial play gap of a hub at one end of the bridge assembly;
The clamping unit is arranged on the frame and used for clamping the shaft body in the bridge assembly on the detection station;
wherein, each detection unit comprises: the axle assembly positioning component, the hub displacement acquisition component and the first driving component are arranged on the frame; the first driving assembly is used for pushing the hub to a first limit position along the direction that the end part of the bridge assembly points to the center of the bridge assembly, the second driving assembly is used for pushing the hub to a second limit position along the direction that the center of the bridge assembly points to the end part of the bridge assembly, and the hub displacement acquisition assembly is used for acquiring displacement between the first limit position and the second limit position.
The invention provides a hub axial float gap control device, which comprises a frame, two detection units which are arranged on the frame at intervals and are opposite to each other, and a clamping unit which is arranged on the frame and is used for clamping a bridge assembly, wherein the two detection units comprise: the axle assembly positioning assembly is used for positioning the axle assembly which is conveyed in place, the first driving assembly is used for pushing the hub to a first limit position along the direction of the end part of the axle assembly pointing to the center of the axle assembly, the second driving assembly is used for pushing the hub to a second limit position along the direction of the center of the axle assembly pointing to the end part of the axle assembly, and the hub displacement acquisition assembly is used for acquiring the displacement between the first limit position and the second limit position, so that the axial displacement gap of the hubs at two ends of the axle assembly can be detected. The measurement of the axial play gap of the hub is realized by mechanical means, the interference of human factors can be reduced or even avoided, and the measurement result of the axial play gap of the hub is more accurate.
Optionally, the rack comprises a bottom frame and a top frame arranged on the bottom frame, each detection unit is arranged on the bottom frame, and the clamping unit is arranged on the top frame;
the clamping unit comprises a lifting mechanism arranged on the frame and two clamping mechanisms arranged at the power output ends of the lifting mechanism, wherein the two clamping mechanisms are arranged at intervals and opposite to each other at the power output ends of the lifting mechanism, and the two clamping mechanisms can be matched with the lifting mechanism to clamp a shaft body in the bridge assembly.
Optionally, elevating system's power take off end is connected with the mounting bracket, two clamping mechanism all set up in on the mounting bracket, and every clamping mechanism all includes:
the clamping device comprises a first clamping arm, a second clamping arm and a clamping cylinder, wherein the first clamping arm and the second clamping arm are both in sliding connection with the mounting frame, the first clamping arm is fixedly connected with one end, far away from a cylinder body of the clamping cylinder, of a piston rod of the clamping cylinder, and the second clamping arm is fixedly arranged on one side, facing the first clamping arm, of the cylinder body;
the first clamping arm points to the direction of the second clamping arm and is perpendicular to the direction that one detection unit points to the other detection unit; the first clamping arm and the second clamping arm can jointly act to clamp the part, located between the two hubs, of the axle body in the axle assembly under the drive of the clamping cylinder.
Optionally, the two clamping mechanisms can slide relative to the mounting frame along the direction that one of the detecting units points to the other detecting unit;
the mounting frame is provided with third driving components which are in one-to-one correspondence with the clamping mechanisms, the power output ends of the third driving components are respectively connected with the corresponding clamping mechanisms, and the third driving components are used for driving the corresponding clamping mechanisms to move in the direction that one detection unit points to the other detection unit so as to change the distance between the two clamping mechanisms.
Optionally, the mounting bracket is provided with the spacing subassembly of clamping mechanism one-to-one, spacing subassembly is used for corresponding clamping mechanism is in one the detecting element points to another the spacing of detecting element on the direction, and two spacing subassembly is in one the detecting element points to another the spacing of detecting element on the direction can be adjusted.
Optionally, rollers are rotatably disposed at the bottom ends of the first clamping arm and the second clamping arm;
the third driving assembly is also used as the second driving assembly, and each roller in the same clamping mechanism is used for pushing the hub to the second limit position under the drive of the third driving assembly.
Optionally, the bridge assembly positioning component includes a positioning head disposed on the frame, where the positioning head can move relative to the frame in a direction in which one of the detection units points to the other detection unit, and can abut against a corresponding shaft end of the bridge assembly.
Optionally, the detecting unit includes an installation part slidably disposed on the frame, and the bridge assembly positioning component and the hub displacement acquisition component are both disposed on the installation part;
the first driving assembly comprises a driving part arranged on the frame and a hub pushing assembly arranged on the mounting part, and a power output end of the driving part is connected with the mounting part, so that the mounting part can reciprocate relative to the frame in the direction that one detection unit points to the other detection unit.
Optionally, the hub pushing assembly includes a first mounting plate, a detection ring, a pushing ring, a plurality of pushing rods and a plurality of connecting assemblies, where the first mounting plate is disposed on the mounting portion and located between the positioning head and the mounting portion;
the pushing ring and the positioning head are positioned on the same side of the first mounting plate, the detection ring is positioned on the side of the first mounting plate, which is away from the positioning head, and the pushing rod is arranged on the side of the pushing ring, which is away from the first mounting plate;
The connecting component is arranged on the first mounting plate, one end of the connecting component is connected with the detection ring, the other end of the connecting component is connected with the pushing ring, and when the connecting component is in a natural state, the detection ring is abutted with the first mounting plate; when the push rod is pushed by the corresponding hub in the bridge assembly, the push rod, the push ring and the detection ring can move towards the direction approaching the corresponding mounting part.
Optionally, the positioning head is provided with a clamping part for screwing the corresponding spindle head nut, and the clamping part can rotate relative to the positioning head;
the wheel hub axial float gap control device comprises a fourth driving assembly arranged on the mounting part, wherein the power output end of the fourth driving assembly is connected with the clamping part and used for driving the clamping part to rotate so as to screw the corresponding spindle head nut.
Optionally, including torque detection mechanism, torque detection mechanism including set up in fifth drive assembly on the installation department, set up in belt drive assembly on the installation department, set up in wheel hub on the first mounting panel stir the subassembly and set up in torque detection assembly of the power take off of fifth drive assembly, belt drive assembly including connect in the first band pulley of the power take off of fifth drive assembly, with the second band pulley that first mounting panel is connected and cover are located first band pulley with the hold-in range of second band pulley outer axle, first mounting panel can with the synchronous rotation of second band pulley.
Optionally, the detection unit includes a longitudinal positioning component, a longitudinal floating component and a longitudinal floating plate slidably disposed on the mounting portion, where the longitudinal floating plate can move longitudinally relative to the mounting portion, and the first mounting plate is disposed on the longitudinal floating plate and is located on a side of the longitudinal floating plate facing away from the mounting portion;
the vertical positioning component is arranged on the mounting part and used for roughly positioning the vertical floating plate in the vertical direction, and the vertical floating component is connected with the vertical floating plate and the mounting part and used for finely positioning the vertical floating plate in the vertical direction.
Optionally, the longitudinal floating assembly includes:
a longitudinal floating cylinder provided on the mounting portion;
the first longitudinal mounting support and the second longitudinal mounting support are sequentially arranged on the longitudinal floating plate from top to bottom;
the floating frame is arranged at the power output end of the longitudinal floating cylinder and comprises an outer frame and a transverse plate arranged in the middle of the outer frame, and the transverse plate divides the outer frame into an upper surrounding frame and a lower surrounding frame;
the first longitudinal connecting shaft is arranged on the first longitudinal mounting support, the second longitudinal connecting shaft is arranged on the second longitudinal mounting support, the first longitudinal connecting shaft and the second longitudinal connecting shaft are at least partially positioned between the first longitudinal mounting support and the second longitudinal mounting support, a longitudinal slot is formed at one end, close to the second longitudinal connecting shaft, of the first longitudinal connecting shaft, a first flanging is arranged at the periphery of the first longitudinal slot, a longitudinal protruding part matched with the longitudinal slot is arranged at one end, close to the first longitudinal connecting shaft, of the second longitudinal connecting shaft, and a second flanging is arranged at the periphery of the second longitudinal connecting shaft; the longitudinal protruding part is inserted into the longitudinal slot through the transverse plate so as to connect the first longitudinal connecting shaft and the second longitudinal connecting shaft; the first flanging is positioned in the upper surrounding frame, and the second flanging is positioned in the lower surrounding frame;
The two first elastic components and the longitudinal limit sleeves are in one-to-one correspondence with the turnups, the longitudinal limit sleeves are sleeved on the peripheries of the corresponding turnups, the first elastic components are sleeved on the peripheries of the corresponding longitudinal connecting shafts, one ends of the first elastic components are abutted with the corresponding limit sleeves, and the other ends of the first elastic components are abutted with the corresponding longitudinal mounting supports; one end of each limit sleeve, which is far away from the transverse plate, is provided with a limit part which can limit corresponding flanging;
when the two first elastic components are in a natural state, the first flanging, the second flanging and the transverse plate are spaced.
Optionally, the detection unit includes a lateral floating assembly and a lateral floating plate slidably disposed on the longitudinal floating plate, the lateral floating plate is capable of moving laterally relative to the longitudinal floating plate, and the first mounting plate is disposed on the lateral floating plate and is located on a side of the lateral floating plate facing away from the mounting portion;
the transverse floating assembly is connected with the transverse floating plate and the longitudinal floating plate and used for fine adjustment of the transverse position of the first mounting plate.
Optionally, the lateral floating assembly includes:
The first transverse mounting support and the second transverse mounting support are arranged on the longitudinal floating plate at intervals along the transverse direction, and the first transverse mounting support and the second transverse mounting support are positioned below the transverse floating plate;
the transverse floating piece is arranged at the bottom end of the transverse floating plate;
the first transverse connecting shaft is arranged on the first transverse mounting support, the second transverse connecting shaft is arranged on the second transverse mounting support, the first transverse connecting shaft and the second transverse connecting shaft are at least partially positioned between the first transverse mounting support and the second transverse mounting support, a transverse slot is formed at one end, close to the second transverse connecting shaft, of the first transverse connecting shaft, a third flanging is arranged at the periphery of the first transverse connecting shaft, a transverse protruding part matched with the transverse slot is arranged at one end, close to the first transverse connecting shaft, of the second transverse connecting shaft, and a fourth flanging is arranged at the periphery of the second transverse connecting shaft; the transverse bulge part is inserted into the transverse slot to connect the first transverse connecting shaft and the second transverse connecting shaft; the transverse floating piece sleeve is positioned on the transverse protruding part and positioned between the third flanging and the fourth flanging and can move along the transverse protruding part;
The two second elastic assemblies and the two transverse limiting sleeves are sleeved on the periphery of the third flanging, and the other sleeve is sleeved on the periphery of the fourth flanging; the two second elastic components are respectively sleeved on the periphery of one transverse connecting shaft, one end of each second elastic component is abutted with the corresponding transverse limiting sleeve, and the other end of each second elastic component is abutted with the corresponding transverse mounting support; one end of each transverse limiting sleeve, which is far away from the transverse floating piece, is provided with a second limiting part which can limit corresponding flanging; when the transverse floating piece moves along the transverse protruding part, the corresponding transverse limiting sleeve can be pushed to move along the transverse protruding part;
when the two second elastic components are in a natural state, the third flanging and the fourth flanging are spaced from the transverse floating piece.
Drawings
FIG. 1 is a schematic structural view of a device for controlling axial play of a hub according to an embodiment of the present invention;
FIG. 2 is a front view of the hub axial play control device shown in FIG. 1;
FIG. 3 is a schematic view of a hub axial play gap control device according to an embodiment of the present invention with a part of the structure omitted;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a schematic structural view of a clamping mechanism in a hub axial play gap control device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a detecting unit in a hub axial play gap control device according to an embodiment of the present invention;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is another angular view of FIG. 6;
FIG. 9 is a schematic structural view of a longitudinal floating assembly in a hub axial play gap control device according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a transverse floating assembly in a hub axial play gap control device according to an embodiment of the present invention.
Icon: 1-a frame; 11-top rack; 12-underframe; 13-a limiting part; 2-a detection unit; 211-positioning heads; 212-a clamping part; 22-a hub displacement acquisition assembly; 231-a driving part; 232-a hub push assembly; 233-a first mounting plate; 234-a detection loop; 235-push ring; 236-a connection assembly; 24-a second drive assembly; 25-mounting part; 3-a clamping unit; 31-a lifting mechanism; 32-a clamping mechanism; 321-a first clamping arm; 322-a second clamping arm; 323 clamping cylinder; 33-a third drive assembly; 34-a limiting assembly; 35-a roller; 36-a lead screw unit; 4-mounting frames; 41-lifting limiting arms; 5-a fourth drive assembly; 61-a fifth drive assembly; 62-hub toggle assembly; 63-tensioning wheels; 64-a first pulley; 65-a second pulley; 66-synchronous belt; 71-a longitudinal positioning assembly; 72-a longitudinal float assembly; 721-longitudinal floating cylinder; 722-a first longitudinal mounting support; 723-a second longitudinal mounting bracket; 724-floating frame; 725-a first longitudinal connecting shaft; 726-a first elastic component; 727-longitudinal stop sleeve; 74-longitudinal floating plates; 75-limiting blocks; 81-a lateral floating assembly; 811-a first transverse mounting bracket; 812-a second transverse mounting bracket; 813-lateral floats; 814-a first transverse connection shaft; 815-a second transverse connecting shaft; 816-a second elastic component; 817—a lateral limiting sleeve; 82-a lateral floating plate; 91-a tray; 92-connecting lines; 93-weight; a 100-bridge assembly; 200-lifting mechanism.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, the hub axial play gap control device provided in this embodiment includes a frame 1, a clamping unit 3, and two detection units 2, where:
the two detection units 2 are arranged on the frame 1 at intervals and are opposite to each other, are used for jointly positioning the bridge assembly 100 conveyed to the detection station and are respectively used for detecting the axial play gap of the hub at one end of the bridge assembly 100;
the clamping unit 3 is arranged on the frame 1 and used for clamping the shaft body in the bridge assembly 100 at the detection station;
each detection unit comprises: the axle assembly positioning component, the hub displacement acquisition component 22 and the first driving component, the hub axial play gap control device further comprises a second driving component 24, and the axle assembly positioning component, the hub displacement acquisition component 22, the first driving component and the second driving component 24 are all arranged on the frame 1; the first drive assembly is configured to push the hub to a first extreme position in a direction in which an end of the bridge assembly 100 is directed toward a center of the bridge assembly 100, the second drive assembly 24 is configured to push the hub to a second extreme position in a direction in which the center of the bridge assembly 100 is directed toward the end of the bridge assembly 100, and the hub displacement acquisition assembly 22 is configured to acquire a displacement between the first extreme position and the second extreme position.
The wheel hub axial float gap controlling means that this embodiment provided includes frame 1, two detecting element 2 that interval and relative setting set up on frame 1 and set up in frame 1, be used for pressing from both sides tight clamping element 3 of bridge assembly 100, all include in two detecting element 2: the axle assembly positioning component is used for positioning the axle assembly 100 conveyed into place, the first driving component is used for pushing the axle to a first limit position along the direction that the end part of the axle assembly 100 points to the center of the axle assembly 100, the second driving component 24 is used for pushing the axle to a second limit position along the direction that the center of the axle assembly 100 points to the end part of the axle assembly 100, and the hub displacement acquisition component 22 is used for acquiring displacement between the first limit position and the second limit position, so that the axial displacement gap of the axle hubs at two ends of the axle assembly 100 can be detected. The measurement of the axial play gap of the hub is realized by mechanical means, the interference of human factors can be reduced or even avoided, and the measurement result of the axial play gap of the hub is more accurate.
The first driving component is used for pushing the hub to a first limit position along the direction that the end of the bridge assembly 100 points to the center of the bridge assembly 100, the second driving component 24 is used for pushing the hub to a second limit position along the direction that the center of the bridge assembly 100 points to the end of the bridge assembly 100, and obviously, the acting objects of the first driving component and the second driving component 24 are hubs at one end of the first driving component and the second driving component, for example: as shown in fig. 2, the left first driving component and the second driving component 24 are all the hubs at the left end of the bridge assembly 100, and the right first driving component and the second driving component 24 are all the hubs at the right end of the bridge assembly 100.
In an alternative implementation, the rack 1 includes a bottom frame 12 and a top frame 11 disposed on the bottom frame 12, each detection unit is disposed on the bottom frame 12, and the clamping unit 3 is disposed on the top frame 11. As shown in fig. 3, the clamping unit 3 includes a lifting mechanism 31 disposed on the frame 1 and two clamping mechanisms 32 disposed at power output ends of the lifting mechanism 31, the two clamping mechanisms 32 are disposed at intervals and opposite to each other at the power output ends of the lifting mechanism 31, and the two clamping mechanisms 32 can cooperate with the lifting mechanism 31 to clamp the shaft body in the bridge assembly 100.
Illustratively, the lifting mechanism 31 may be a cylinder, as described in fig. 3 and 4.
In an alternative implementation, the power output end of the lifting mechanism 31 is connected with the mounting frame 4, and two clamping mechanisms 32 are both disposed on the mounting frame 4, and as shown in fig. 5, each clamping mechanism 32 includes:
the first clamping arm 321, the second clamping arm 322 and the clamping air cylinder 323, wherein the first clamping arm 321 and the second clamping arm 322 are both in sliding connection with the mounting frame 4, the first clamping arm 321 is fixedly connected with one end, far away from the cylinder body of the clamping air cylinder 323, of a piston rod of the clamping air cylinder 323, and the second clamping arm 322 is fixedly arranged on one side, facing the first clamping arm 321, of the cylinder body;
The first clamping arm 321 points in the direction of the second clamping arm 322 and is perpendicular to the direction in which one detection unit points to the other detection unit; the first clamping arm 321 and the second clamping arm 322 are capable of coacting to clamp the portion of the axle body of the axle assembly 100 between the two hubs under the actuation of the clamping cylinder 323.
Illustratively, the first clamping arm 321 and the second clamping arm 322 may each be connected to the mounting bracket 4 via a linear guide.
In order to make the lifting of the clamping unit 3 smoother, in an alternative implementation, the frame 1 is provided with a linear guide for guiding the lifting of the clamping unit 3, through which the mounting frame 4 is slidably connected to the frame 1.
With continued reference to fig. 3, in an alternative implementation, the power output end of the lifting mechanism 31 is connected to the mounting frame 4, and both clamping mechanisms 32 can slide relative to the mounting frame 4 along a direction in which one detection unit points to the other detection unit;
the mounting frame 4 is provided with third driving components 33 corresponding to the clamping mechanisms 32 one by one, the power output ends of the third driving components 33 are respectively connected with the corresponding clamping mechanisms 32, and each third driving component 33 is used for driving the corresponding clamping mechanism 32 to move in the direction that one detection unit points to the other detection unit so as to change the distance between the two clamping mechanisms 32.
The third drive assembly 33 may include, for example, a cylinder.
Further, as shown in fig. 4, in an alternative implementation manner, the mounting frame 4 is provided with limiting components 34 corresponding to the clamping mechanisms 32 one by one, the limiting components 34 are used for limiting the corresponding clamping mechanisms 32 in the direction that one detection unit points to the other detection unit, and the distance between the two limiting components 34 in the direction that one detection unit points to the other detection unit can be adjusted.
Illustratively, the limit assembly 34 may include a hydraulic buffer.
In an alternative implementation, as shown in fig. 3, a screw unit 36 is provided on the mounting frame 4, where the screw unit 36 includes a servo motor provided on the mounting frame 4, a screw provided on the mounting frame 4 and extending along a direction in which one detection unit points to the other detection unit, and two nut blocks provided on the screw, and one of the above-mentioned limiting assemblies 34 is mounted on each nut block.
The screw rod comprises a first part and a second part which are arranged along the direction that one detection unit points to the other detection unit, the screw direction of the screw thread at the periphery of the first part is opposite to that of the screw thread at the periphery of the second part, one nut block is arranged on the first part, and the other nut block is arranged on the second part, so that after the servo motor is started, the two limiting assemblies 34 move in opposite directions or move in opposite directions.
As shown in fig. 5, in an alternative implementation manner, the bottom end of the first clamping arm 321 and the bottom end of the second clamping arm 322 are rotatably provided with a roller 35, and an extending direction of an axis of the roller 35 is parallel to a horizontal plane and perpendicular to a direction in which one detecting unit points to the other detecting unit;
the third driving assembly 33 is also used as the second driving assembly 24, and each roller 35 in the same clamping mechanism 32 is used for pushing the corresponding hub to the second limit position under the driving of the third driving assembly 33.
In an alternative implementation, one of the bottom ends of the first clamping arm 321 and the bottom end of the second clamping arm 322 is provided with a planar clamping block, and one is provided with a V-shaped clamping block to better clamp the shaft in the bridge assembly 100.
In an alternative implementation, as shown in fig. 6, the bridge assembly positioning component includes a positioning head 211 provided on the frame 1, the positioning head 211 being movable relative to the frame 1 in a direction in which one detection unit points to the other detection unit and being capable of abutting a corresponding shaft end of the bridge assembly 100. The two positioning heads 211 are respectively abutted with corresponding shaft ends of the bridge assembly 100, i.e. the positioning of the bridge assembly can be realized.
Further, in an alternative implementation, the detection unit includes a mounting portion 25 slidably disposed on the frame 1, and the bridge assembly positioning component and the hub displacement acquisition component 22 are disposed on the mounting portion 25. The first driving assembly includes a driving part 231 (shown in fig. 1 and 2) provided on the frame 1 and a hub pushing assembly 232 provided on the mounting part 25, and a power output end of the driving part 231 is connected to the mounting part 25 so that the mounting part 25 can reciprocate relative to the frame in a direction in which one sensing unit is directed toward the other sensing unit.
Each driving part 231 may include two cylinders, each of which is located at one side of the mounting part 25, and piston rods of the two cylinders are connected with the corresponding mounting parts 25, respectively.
With continued reference to fig. 6, in an alternative implementation, the hub pushing assembly 232 includes a first mounting plate 233, a detection ring 234, a pushing ring 235, a plurality of pushing rods, and a plurality of connection assemblies 236, where the first mounting plate 233 is disposed on the mounting portion 25 and between the positioning head 211 and the mounting portion 25;
as shown in fig. 7, the push ring 235 and the positioning head 211 are located on the same side of the first mounting plate 233, the detection ring 234 is located on the side of the first mounting plate 233 away from the positioning head 211, and the push rod is disposed on the side of the push ring 235 away from the first mounting plate 233;
the connecting component 236 is arranged on the first mounting plate 233, one end of the connecting component 236 is connected with the detecting ring 234, the other end of the connecting component 236 is connected with the pushing ring 235, and when the connecting component 236 is in a natural state, the detecting ring 234 is abutted with the first mounting plate 233; when the push rod is pushed by the corresponding hub in the axle assembly 100, the push rod, push ring 235 and detection ring 234 can move in a direction approaching the corresponding mounting portion 25.
Illustratively, the connecting assembly 236 may include a linear bearing and a spring disposed in an inner bore of the linear bearing, where the detecting ring 234 abuts the first mounting plate 233 when the spring is in a natural state; when the push rod is pushed by the corresponding hub in the bridge assembly 100, the elastic force of the corresponding spring can be overcome, so that the push rod, the push ring 235 and the detection ring 234 can move in a direction approaching the corresponding mounting portion 25.
With continued reference to fig. 6, in an alternative implementation manner, the positioning head 211 is provided with a clamping portion for screwing the corresponding spindle head nut, and the clamping portion can rotate relative to the positioning head; the hub axial float gap control device comprises a fourth driving assembly 5 arranged on the mounting part 25, and a power output end of the fourth driving assembly 5 is connected with the clamping part 212 and used for driving the clamping part 212 to rotate so as to screw the corresponding spindle head nut.
The positioning head 211 is provided with a clamping part for clamping the spindle head nut, and the hub axial play gap control device comprises a fourth driving assembly 5 for driving the clamping part 212 to rotate so as to screw the corresponding spindle head nut, so that the hub axial play gap control device provided by the embodiment can be further used for tightness adjustment of the spindle head nut.
The clamping portion 212 is rotatable relative to the mounting portion 25, and it is apparent that the clamping portion 212 is rotatably disposed on the mounting portion 25.
Illustratively, the fourth drive assembly 5 may be an electric motor; the clamping portion may be an inner hexagon formed on the inner wall of the positioning head 211.
Referring to fig. 6, in an alternative implementation manner, the hub axial play gap control device includes a torque detection mechanism, where the torque detection mechanism includes a fifth driving component 61 disposed on the mounting portion 25, a belt transmission component disposed on the mounting portion 25, a hub toggle component 62 disposed on the first mounting plate 233, and a torque detection component disposed at a power output end of the fifth driving component 61, the belt transmission component includes a first belt pulley 64 connected to the power output end of the fifth driving component 61, a second belt pulley 65 connected to the first mounting plate 233, and a synchronous belt 66 sleeved on outer shafts of the first belt pulley 64 and the second belt pulley 65, and the first mounting plate 233 can rotate synchronously with the second belt pulley 65.
To protect the torque detection assembly, in an alternative implementation, the torque detection mechanism may further include a torque limiter and a coupling, with the power output of the fifth drive assembly 61, the torque detection assembly, the torque limiter, the coupling, and the first pulley 64 being connected in sequence.
Illustratively, the hub shifting assembly 62 includes two shifting forks, each of which is located at one side of the positioning head 211 and on a straight line of the same diameter of the positioning head 211, for shifting the corresponding hub to realize torque detection; the fifth driving assembly 61 may be a servo motor.
In order to ensure the accuracy of the torque detection result, in an alternative implementation manner, the torque detection mechanism further comprises a torque calibration mechanism, the torque calibration mechanism comprises a tray 91, a connecting wire 92 and a plurality of weights 93, one end of the connecting wire 92 is connected with a hook, and the other end of the connecting wire 92 is connected with the tray 91 after passing through a fixed pulley. The outer periphery of the first pulley 64 is provided with a hooking hole for connecting with the above-mentioned hook, and a weight 93 is used for being placed on the tray 91 to calibrate the torque detecting assembly.
In an alternative implementation, the belt drive assembly includes a tensioner 63, the tensioner 63 being used to tension the timing belt 66.
The first mounting plate 233 can rotate synchronously with the second pulley 65, and it is apparent that the first mounting plate 233 is rotatably provided on the mounting portion 25, and the positioning head does not rotate synchronously with the second pulley 65.
As shown in fig. 8 and 9, in an alternative implementation, the detection unit includes a longitudinal positioning component 71, a longitudinal floating component 72, and a longitudinal floating plate 74 slidably disposed on the mounting portion 25, where the longitudinal floating plate 74 is capable of moving longitudinally relative to the mounting portion 25, and the first mounting plate 233 is disposed on the longitudinal floating plate 74 and on a side of the longitudinal floating plate 74 facing away from the mounting portion 25;
the longitudinal positioning component 71 is disposed on the mounting portion 25 for coarse positioning of the longitudinal floating plate 74 in the longitudinal direction, and the longitudinal floating component 72 connects the longitudinal floating plate 74 with the mounting portion 25 for fine positioning of the longitudinal floating plate 74 in the longitudinal direction to match the position of the bridge assembly 100.
The longitudinal floating plate 74 is slidably disposed on the mounting portion 25, and the longitudinal floating plate 74 may be disposed on the mounting portion 25 by a linear guide rail, for example.
In an alternative implementation, the longitudinal positioning assembly 71 may include a cylinder, the cylinder body of which is provided with the top end of the mounting portion 25, the piston rod of which can be extended downward, and the piston rod of which is connected with the longitudinal floating plate 74 to balance the gravity of the longitudinal floating plate 74 and the components provided on the longitudinal floating plate 74.
In an alternative implementation, the mounting portion 25 is further provided with a stopper 75, and the stopper 75 is used to define a limit position of the longitudinal floating assembly 72 in the longitudinal direction.
In one particular implementation, the longitudinal float assembly 72 may include:
a longitudinal floating cylinder 721 provided on the mounting portion 25;
a first longitudinal mounting bracket 722 and a second longitudinal mounting bracket 723 provided in this order on the longitudinal floating plate 74 from top to bottom;
a floating frame 724 provided at a power output end of the longitudinal floating cylinder 721, the floating frame 724 including an outer frame and a cross plate provided at a middle portion of the outer frame, the cross plate dividing the outer frame into an upper peripheral frame and a lower peripheral frame;
the first longitudinal connecting shaft 725 is arranged on the first longitudinal mounting support 722, the second longitudinal connecting shaft is arranged on the second longitudinal mounting support 723, the first longitudinal connecting shaft 725 and the second longitudinal connecting shaft are at least partially positioned between the first longitudinal mounting support 722 and the second longitudinal mounting support 723, a longitudinal slot is formed at one end of the first longitudinal connecting shaft 725 close to the second longitudinal connecting shaft, a first flanging is arranged at the periphery of the first longitudinal slot, a longitudinal protruding part matched with the longitudinal slot is arranged at one end of the second longitudinal connecting shaft close to the first longitudinal connecting shaft 725, and a second flanging is arranged at the periphery of the second longitudinal connecting shaft; the longitudinal protruding part is inserted into the longitudinal slot through the transverse plate to connect the first longitudinal connecting shaft 725 and the second longitudinal connecting shaft; the first flanging is positioned in the upper surrounding frame, and the second flanging is positioned in the lower surrounding frame;
The two first elastic components 726 and the longitudinal limit sleeves 727 which are in one-to-one correspondence with the turnups, the longitudinal limit sleeves 727 are sleeved on the peripheries of the corresponding turnups, the first elastic components 726 are sleeved on the peripheries of the corresponding longitudinal connecting shafts, one ends of the first elastic components 726 are abutted with the corresponding limit sleeves, and the other ends of the first elastic components are abutted with the corresponding longitudinal mounting supports; one end of each limit sleeve, which is far away from the transverse plate, is provided with a limit part which can limit corresponding flanging;
when the two first elastic components 726 are in the natural state, the first flange and the second flange are spaced from the transverse plate.
As shown in fig. 8 and 10, the detection unit includes a lateral floating assembly 81 and a lateral floating plate 82 slidably disposed on the longitudinal floating plate 74, the lateral floating plate 82 being capable of lateral movement with respect to the longitudinal floating plate 74, and a first mounting plate 233 disposed on the lateral floating plate 82 (i.e., the first mounting plate 233 is indirectly disposed on the longitudinal floating plate 74 through the lateral floating plate 82) and on a side of the lateral floating plate 82 facing away from the mounting portion 25;
the lateral floating assembly 81 connects the lateral floating plate 82 with the longitudinal floating plate 74 for fine adjustment of the lateral position of the first mounting plate 233 to match the position of the bridge assembly 100.
The lateral floating plates 82 are slidably disposed on the longitudinal floating plates 74, and the lateral floating plates 82 may be slidably disposed on the longitudinal floating plates 74 by linear guides, for example.
In one particular implementation, lateral floating assembly 81 may include:
first and second lateral mounting brackets 811 and 812 provided on the longitudinal floating plate 74 at intervals in the lateral direction, the first and second lateral mounting brackets 811 and 812 being located below the lateral floating plate 82;
a lateral floating member 813 provided at the bottom end of the lateral floating plate 82;
a first transverse connecting shaft 814 arranged on the first transverse mounting support 811 and a second transverse connecting shaft 815 arranged on the second transverse mounting support 812, wherein the first transverse connecting shaft 814 and the second transverse connecting shaft 815 are at least partially positioned between the first transverse mounting support 811 and the second transverse mounting support 812, a transverse slot is formed at one end of the first transverse connecting shaft 814 close to the second transverse connecting shaft 815, a third flanging is arranged at the periphery, a transverse protruding part matched with the transverse slot is arranged at one end of the second transverse connecting shaft 815 close to the first transverse connecting shaft 814, and a fourth flanging is arranged at the periphery; the transverse bulge is inserted into the transverse slot to connect the first transverse connecting shaft 814 and the second transverse connecting shaft 815; the transverse floating piece 813 is sleeved on the transverse protruding portion and is positioned between the third flanging and the fourth flanging and can move along the transverse protruding portion;
Two second elastic components 816 and two transverse limiting sleeves 817, wherein one transverse limiting sleeve 817 is sleeved on the periphery of the third flanging, and the other transverse limiting sleeve 817 is sleeved on the periphery of the fourth flanging; the two second elastic components 816 are respectively sleeved on the periphery of one transverse connecting shaft, one end of each second elastic component is abutted with the corresponding transverse limiting sleeve 817, and the other end of each second elastic component is abutted with the corresponding transverse mounting support; one end of each transverse limiting sleeve, which is far away from the transverse floating piece 813, is provided with a second limiting part which can limit corresponding flanging; when the transverse floating piece 813 moves along the transverse protruding part, the corresponding transverse limiting sleeve 817 can be pushed to move along the transverse protruding part;
when both the second elastic members 816 are in a natural state, there is a space between the third and fourth cuffs and the lateral float 813.
In an alternative implementation, the hub displacement acquisition assembly 22 includes a plurality of displacement sensors disposed on a lateral floating plate 82.
Illustratively, the hub displacement acquisition assembly 22 may include three displacement sensors uniformly distributed along the circumference of the detection ring 234 to improve the accuracy of the detection.
In an alternative implementation manner, the mounting frame may be provided with a lifting limiting arm 41, the top of the frame is provided with a limiting portion 13, and the lifting limiting arm 41 cooperates with the limiting portion 13 to limit the lowest position of the mounting frame when the mounting frame descends.
The following provides a brief description of the working process of the hub axial play gap control device according to this embodiment:
step one, enabling a bridge assembly to flow to a detection station along with a jig (such as a transfer tray), and reading jig information by using RFID;
step two, lifting the bridge assembly 100 on the jig by the lifting mechanism 200;
step three, the clamping unit 3 descends and clamps the shaft in the bridge assembly;
step four, the two detection units 2 move towards the middle at the same time, and push up the corresponding shaft ends of the bridge assembly, and simultaneously push the corresponding hubs to the first limit positions;
step five, the displacement sensor extends out, and retracts after reading the numerical value; the displacement sensor is provided with a telescopic function;
step six, the fourth driving assembly 5 is used for screwing the corresponding spindle head nuts according to the technological requirements;
step seven, a gear motor (a fifth driving component 61) is started, the rotating speed is 120r/min, the corresponding hub is driven to rotate, the rotating moment is detected, and the shifting fork stops to a horizontal position after detection is completed;
step eight, opening the clamping unit 3 in place;
step nine, the third driving assembly 33 drives the roller to compress the end surface of the corresponding hub, and the corresponding hub is pushed to a second limit position;
Step ten, the displacement sensor extends out, and retracts after reading the numerical value;
step eleven, resetting the third driving assembly 33, and resetting the two detection units 2 at the same time;
step twelve, resetting the clamping unit 3 and the lifting mechanism 200;
and step thirteen, releasing the jig.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. A hub axial play gap control device, comprising:
a frame;
the two detection units are arranged on the frame at intervals and are opposite to each other, are used for jointly positioning a bridge assembly conveyed to a detection station, and are respectively used for detecting the axial play gap of a hub at one end of the bridge assembly;
the clamping unit is arranged on the frame and used for clamping the shaft body in the bridge assembly on the detection station;
wherein, each detection unit comprises: the axle assembly positioning component, the hub displacement acquisition component and the first driving component are arranged on the frame; the first driving component is used for pushing the hub to a first limit position along the direction that the end part of the bridge assembly points to the center of the bridge assembly, the second driving component is used for pushing the hub to a second limit position along the direction that the center of the bridge assembly points to the end part of the bridge assembly, and the hub displacement acquisition component is used for acquiring displacement between the first limit position and the second limit position;
The rack comprises a bottom frame and a top frame arranged on the bottom frame, each detection unit is arranged on the bottom frame, and the clamping unit is arranged on the top frame;
the clamping unit comprises a lifting mechanism arranged on the frame and two clamping mechanisms arranged at the power output end of the lifting mechanism, wherein the two clamping mechanisms are arranged at intervals and opposite to each other at the power output end of the lifting mechanism, and the two clamping mechanisms can be matched with the lifting mechanism to clamp a shaft body in the bridge assembly;
the power take off end of elevating system is connected with the mounting bracket, two clamping mechanism all set up in on the mounting bracket, and every clamping mechanism all includes:
the clamping device comprises a first clamping arm, a second clamping arm and a clamping cylinder, wherein the first clamping arm and the second clamping arm are both in sliding connection with the mounting frame, the first clamping arm is fixedly connected with one end, far away from a cylinder body of the clamping cylinder, of a piston rod of the clamping cylinder, and the second clamping arm is fixedly arranged on one side, facing the first clamping arm, of the cylinder body;
the first clamping arm points to the direction of the second clamping arm and is perpendicular to the direction that one detection unit points to the other detection unit; the first clamping arm and the second clamping arm can jointly act to clamp the part of the axle body in the axle assembly, which is positioned between the two hubs, under the drive of the clamping cylinder;
The two clamping mechanisms can slide relative to the mounting frame along the direction that one detection unit points to the other detection unit;
the mounting frame is provided with third driving assemblies which are in one-to-one correspondence with the clamping mechanisms, the power output ends of the third driving assemblies are respectively connected with the corresponding clamping mechanisms, and each third driving assembly is used for driving the corresponding clamping mechanism to move in the direction that one detection unit points to the other detection unit so as to change the interval between the two clamping mechanisms;
the bottom ends of the first clamping arm and the second clamping arm are respectively provided with a roller in a rotating way;
the third driving assembly is also used as the second driving assembly, and each roller in the same clamping mechanism is used for pushing the hub to the second limit position under the drive of the third driving assembly.
2. The hub axial play gap control device according to claim 1, wherein limiting assemblies corresponding to the clamping mechanisms one by one are arranged on the mounting frame, the limiting assemblies are used for limiting the corresponding clamping mechanisms in the direction that one detection unit points to the other detection unit, and the distance between the two limiting assemblies in the direction that one detection unit points to the other detection unit can be adjusted.
3. The hub axial play control device of claim 1 or 2, wherein the axle assembly positioning component comprises a positioning head provided on the frame, the positioning head being movable relative to the frame in a direction in which one of the detection units is directed to the other detection unit and being capable of abutting a respective axle end of the axle assembly.
4. The hub axial play gap control device of claim 3, wherein the detection unit comprises a mounting portion slidably disposed on the frame, the axle assembly positioning assembly and the hub displacement acquisition assembly being disposed on the mounting portion;
the first driving assembly comprises a driving part arranged on the frame and a hub pushing assembly arranged on the mounting part, and a power output end of the driving part is connected with the mounting part, so that the mounting part can reciprocate relative to the frame in the direction that one detection unit points to the other detection unit.
5. The hub axial play control device of claim 4, wherein the hub push assembly comprises a first mounting plate, a detection ring, a push ring, a plurality of push rods, and a plurality of connection assemblies, the first mounting plate being disposed on the mounting portion and between the positioning head and the mounting portion;
The pushing ring and the positioning head are positioned on the same side of the first mounting plate, the detection ring is positioned on the side of the first mounting plate, which is away from the positioning head, and the pushing rod is arranged on the side of the pushing ring, which is away from the first mounting plate;
the connecting component is arranged on the first mounting plate, one end of the connecting component is connected with the detection ring, the other end of the connecting component is connected with the pushing ring, and when the connecting component is in a natural state, the detection ring is abutted with the first mounting plate; when the push rod is pushed by the corresponding hub in the bridge assembly, the push rod, the push ring and the detection ring can move towards the direction approaching the corresponding mounting part.
6. The hub axial play gap control device of claim 4, wherein the positioning head is provided with a clamping part for screwing a corresponding spindle head nut, and the clamping part can rotate relative to the positioning head;
the wheel hub axial float gap control device comprises a fourth driving assembly arranged on the mounting part, wherein the power output end of the fourth driving assembly is connected with the clamping part and used for driving the clamping part to rotate so as to screw the corresponding spindle head nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210253486.4A CN116045880B (en) | 2022-03-15 | 2022-03-15 | Hub axial float gap control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210253486.4A CN116045880B (en) | 2022-03-15 | 2022-03-15 | Hub axial float gap control device |
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| CN116045880B true CN116045880B (en) | 2023-12-12 |
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| Publication number | Publication date |
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| CN116045880A (en) | 2023-05-02 |
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