CN113147614B - Eccentric mechanism of self-adaptation compensation encoder and mounting structure thereof - Google Patents
Eccentric mechanism of self-adaptation compensation encoder and mounting structure thereof Download PDFInfo
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- CN113147614B CN113147614B CN202110494570.0A CN202110494570A CN113147614B CN 113147614 B CN113147614 B CN 113147614B CN 202110494570 A CN202110494570 A CN 202110494570A CN 113147614 B CN113147614 B CN 113147614B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 8
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- 230000006978 adaptation Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 5
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- 238000000034 method Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
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Abstract
The invention discloses a mechanism for self-adaptive compensation of eccentricity of an encoder and a mounting structure thereof. By adopting the structure, the encoder and the accessory structure thereof can be quickly installed and disassembled through the quick clamp, and the operation is simple; the rod mounting seat, the connecting rod and the sliding sleeve jointly form a three-dimensional crank connecting rod structure, the problem of non-coaxial in space of the hub connecting chuck and the coupling sleeve which rotate synchronously can be converted into axial displacement, so that the encoder is assembled without accurate coaxiality, the assembling difficulty is greatly reduced, the mounting reliability of the three-dimensional crank connecting rod structure is high, the service life is prolonged, the three-dimensional crank connecting rod structure is suitable for wheels of different sizes, and the universality is greatly improved.
Description
Technical Field
The invention relates to the technical field of highway, bridge and tunnel information acquisition, in particular to a mechanism for adaptively compensating the eccentricity of an encoder and a mounting structure thereof.
Background
When information acquisition and other operations are carried out on roads, bridges and tunnels, the video equipment is installed on a vehicle (usually positioned on the roof) to obtain road condition information, and the mileage from a starting point is synchronously obtained through an encoder.
When the device works normally, the requirement on the coaxiality of the shaft axis of the encoder and the shaft axis of the rotating shaft of the wheel is high, so that the abrasion between the encoder shaft and the hole is reduced as much as possible, the safety and reliability are improved, and the service life is prolonged. Therefore, it is now conventional to flexibly mount the encoder using multiple springs. Although the abrasion problem of the encoder shaft and the encoder hole can be relieved to a certain extent, the adaptability is poor, the effect is poor, the abrasion problem caused by coaxiality deviation cannot be fundamentally solved, the safety is extremely poor, the influence of road conditions is great, the cantilever beam problem exists, the encoder shaft and the encoder hole are easy to damage, and the service life is short.
In addition, the assembly process of installing the encoder on the vehicle at present is not only complicated, is difficult to carry out quick assembly disassembly, and the commonality is poor moreover, and different motorcycle types can hardly be interchanged.
It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a mechanism for adaptively compensating the eccentricity of an encoder and a mounting structure thereof.
The technical scheme is as follows:
the utility model provides an eccentric mechanism of self-adaptation compensation encoder and mounting structure thereof, includes wheel hub connection chuck, can connect the encoder support on the automobile body and install the encoder on the encoder support, its main points lie in: the hub connecting chuck is provided with a plurality of quick clamps along the circumferential direction, so that the hub connecting chuck can be locked on the hub through the quick clamps;
a coupling sleeve which synchronously rotates with the encoder shaft is sleeved on the encoder shaft of the encoder, a sliding sleeve which can slide along the axial direction of the encoder shaft is sleeved on the coupling sleeve, a connecting rod mounting seat is arranged on one side, away from the hub, of the hub connecting chuck, a connecting rod is arranged between the sliding sleeve and the connecting rod mounting seat, one end of the connecting rod is hinged with the sliding sleeve through a first hinge assembly, the other end of the connecting rod is hinged with the connecting rod mounting seat through a second hinge assembly, the connecting rod mounting seat drives the connecting rod to synchronously rotate through the second hinge assembly, and the connecting rod drives the encoder shaft to synchronously rotate through the second hinge assembly, the sliding sleeve and the coupling sleeve in sequence;
when the included angle between the axis of the connecting rod and the axis of the coupling sleeve is increased, the sliding sleeve moves towards the direction far away from the encoder, and when the included angle between the axis of the connecting rod and the axis of the coupling sleeve is decreased, the sliding sleeve moves towards the direction close to the encoder.
The working principle of the invention is as follows: the three-dimensional crank connecting rod mechanism is adopted, the deviation of the axis of the hub connecting chuck from the axis of the encoder shaft is used as a crank, the deviation changes periodically along with the rotation of the wheel, so that the length of the crank changes periodically correspondingly, and the rotation plane of the crank is perpendicular to the center line of the curved surface of the connecting rod. The link moves in a direction away from the coupling sleeve as the angle between the axis of the link and the axis of the coupling sleeve increases, and moves in a direction toward the coupling sleeve as the angle between the axis of the link and the axis of the coupling sleeve decreases.
By adopting the structure, the encoder and the accessory structure thereof can be quickly installed and disassembled through the quick clamp, the operation is simple, and the efficiency is high; connecting rod mount pad, connecting rod and sliding sleeve constitute a three-dimensional crank connecting rod structure jointly, can turn into an axial displacement with synchronous pivoted wheel hub connection chuck and the space of shaft coupling sleeve on the disalignment problem, thereby make the assembly of encoder not only need not accurate coaxial, greatly reduced the assembly degree of difficulty, and the installation reliability of three-dimensional crank connecting rod structure is high, the cantilever beam problem of traditional encoder installation has been solved, service life is greatly prolonged, and belong to rigid connection, not influenced by road conditions, the stability and the detection precision of encoder have been guaranteed, in addition, be applicable to not unidimensional wheel, the commonality has been improved greatly.
Preferably, the method comprises the following steps: the hub connecting chuck is provided with a plurality of quick clamp mounting seats along the circumferential direction, the quick clamps all include quick clamp bases and all install latch hook and latch hook drive assembly on quick clamp bases, latch hook drive assembly can drive latch hook when downwards rotating and pull back backward to make the latch hook tightly on hub.
By adopting the structure, the lock hook can stably and reliably hook the hub, is not easy to fall off, is simple to operate, has good universality and can be suitable for hubs with different thicknesses.
Preferably, the method comprises the following steps: the quick clamp base includes the base support of two relative settings, and two base supports are fixed through a plurality of connecting pins, all set up the bullport that extends backward again in the past backward earlier slant, latch hook drive assembly includes two intermediate connecting rods, rotationally installs drive rocking handle and the drive pin that both ends were worn out from corresponding the bullport respectively at two base supports, and two intermediate connecting rods are located drive rocking handle both sides respectively, and one end is articulated with the middle part of drive rocking handle, and the other end is articulated with the corresponding end of drive pin, the rear end of latch hook passes and rotationally installs on the drive pin behind two of them connecting pins, when the drive pin slides along two bullports, can drive the latch hook pivoted simultaneously and stretch out and draw back under the cooperation of latch hook both sides connecting pin.
Structure more than adopting, the structure is ingenious, reliable and stable, and the latch hook downwardly rotating goes to collude wheel hub when, can be taut backward simultaneously, guarantees to be connected with wheel hub's reliability, and the latch hook upwards rotates the time, can stretch out forward to make the latch hook easily separate with wheel hub.
Preferably, the method comprises the following steps: the latch hook comprises a hook seat and a hook body detachably mounted at the outer end of the hook seat, the hook body is of a hook-shaped structure, and the inner end of the hook seat is rotatably connected with the driving pin.
By adopting the structure, the hook body can be detached, flexible selection can be performed according to the style and the size of the hub, the universality is further improved, and the hub hook is suitable for all hubs.
Preferably, the method comprises the following steps: the upper end of the hook seat is rotatably provided with the fastening nut, the fastening nut is rotated clockwise, the hook body can be locked on the hook seat, and the fastening nut is rotated anticlockwise, so that the hook body can be unlocked.
By adopting the structure, the structure is simple and reliable, the hook body can be reliably locked, the hook body is convenient to detach and replace, and the operation is simple.
Preferably, the method comprises the following steps: the encoder bracket comprises a connecting frame and a gland, one end of the coupling sleeve, which is connected with the encoder shaft, is provided with a positioning boss which protrudes outwards in the radial direction, the connecting frame is connected with the vehicle body, the encoder is arranged on the connecting frame, the gland cover is closed on the connecting frame, and the positioning boss is limited between the gland and the encoder;
the connecting frame and the gland are locked on the encoder through a plurality of screws, and all the screws sequentially penetrate through the gland and the connecting frame and then are locked on the encoder.
By adopting the structure, the encoder and the coupling sleeve can be stably and reliably installed, the synchronous rotation of the coupling sleeve and the encoder shaft is ensured, the structure is simple and reliable, and the assembly is easy.
Preferably, the method comprises the following steps: first hinge subassembly includes first bolt and with first bolt screw-thread fit's first bolt nut, the one end that the connecting rod inserted the shaft coupling sleeve is provided with the first hinge hole of connecting rod that suits with first bolt, leaves the clearance between the screw rod of the first hinge hole of this connecting rod and first bolt, the connecting rod inserts and leaves the clearance between the one end of shaft coupling sleeve and the shaft coupling sleeve, the one end that the encoder was kept away from to the shaft coupling sleeve is provided with two bar holes that suit with first bolt, and two bar holes set up the both sides at the first hinge hole of connecting rod relatively to all extend along the axis direction of shaft coupling sleeve, first bolt passes through first bolt nut locking behind sliding sleeve, two bar holes and the first hinge hole of connecting rod, thereby makes the sliding sleeve can follow shaft coupling sleeve axial displacement.
Structure more than adopting makes the connecting rod can enough pass through first bolt and along the axle sleeve axial displacement, makes the connecting rod can swing first bolt relatively through reserving the clearance again to the cooperation makes the connecting rod can do the swing of approximate conical surface, turns into the axial displacement of connecting rod on the axle sleeve with the spatial disalignment problem of wheel hub connection chuck and axle sleeve, and simple structure is reliable, easily the assembly.
Preferably, the method comprises the following steps: the sliding sleeve is of a cylindrical structure, and a gap is formed between the inner peripheral surface of the sliding sleeve and the outer peripheral surface of the coupling sleeve.
By adopting the structure, the sliding sleeve can freely slide on the coupling sleeve conveniently through clearance fit of the sliding sleeve and the coupling sleeve.
Preferably, the method comprises the following steps: one end of the first screw pin in threaded connection with the first screw pin nut is in threaded fit with the sliding sleeve.
With the structure, the sliding sleeve can be reliably locked on the first screw pin.
Preferably, the method comprises the following steps: the second hinge subassembly includes second screw round pin and with the lock nut of second screw round pin looks adaptation, the one end that the connecting rod inserted the connecting rod mount pad is provided with the connecting rod second hinge hole that suits with second screw round pin, leaves the clearance between the screw rod of this connecting rod second hinge hole and second screw round pin, leave the clearance between the one end that the connecting rod is connected with the connecting rod mount pad and the connecting rod mount pad, set up two screw round pin via holes that suit with second screw round pin on the connecting rod mount pad, two screw round pin via holes set up in connecting rod second hinge hole both sides relatively, the second screw round pin passes through the locking nut behind connecting rod second hinge hole and two screw round pin via holes and locks.
Structure more than adopting makes the connecting rod can be relative the swing of second bolt through reserving the clearance to the cooperation makes the connecting rod can do the swing of approximate conical surface, turns into the axial displacement of connecting rod on the shaft coupling sleeve with the not coaxial problem in the space of wheel hub connection chuck and shaft coupling sleeve, and simple structure is reliable, easily assembly.
Compared with the prior art, the invention has the beneficial effects that:
the mechanism for self-adaptively compensating the eccentricity of the encoder and the mounting structure thereof have the advantages of simple and reliable structure, ingenious design and easy realization; the encoder and the accessory structure thereof can be quickly installed and disassembled through the quick clamp, the operation is simple, and the efficiency is high; the connecting rod mount pad, connecting rod and sliding sleeve constitute a three-dimensional crank connecting rod structure jointly, can turn into an axial displacement with synchronous pivoted wheel hub connection chuck and the spatial disalignment problem of coupling sleeve, thereby make the assembly of encoder not only need not accurate coaxial, greatly reduced the assembly degree of difficulty, and the installation reliability of three-dimensional crank connecting rod structure is high, the cantilever beam problem of traditional encoder installation has been solved, the service life is greatly prolonged, and belong to rigid connection, not influenced by road conditions, the stability and the detection precision of encoder have been guaranteed, furthermore, the device is suitable for not unidimensional wheel, and the universality is greatly improved.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the hub connecting chuck and the hub;
FIG. 3 is a schematic view of a quick clip;
FIG. 4 is a schematic structural view of a base of the quick clamp;
FIG. 5 is a schematic view showing the connection of the encoder, the coupling sleeve, the connecting rod and the hub connection chuck;
fig. 6 is a schematic diagram of the matching principle of the coupling sleeve, the connecting rod and the hub connection chuck.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 to 3, a mechanism for adaptively compensating for an eccentricity of an encoder and a mounting structure thereof mainly include a hub connection chuck 1, an encoder bracket 5 capable of being connected to a vehicle body 12, and an encoder 2 mounted on the encoder bracket 5.
Referring to fig. 2, the hub attachment chuck 1 is provided with a plurality of snap clips 13 along the circumferential direction so that the hub attachment chuck 1 can be locked to the hub 14 by the snap clips 13.
Referring to fig. 2 and 3, the hub connection chuck 1 is provided with a plurality of quick clamp mounting seats 1c along the circumferential direction, each quick clamp 13 includes a quick clamp base 13a, and a locking hook 13b and a locking hook driving assembly both mounted on the quick clamp base 13a, and the locking hook driving assembly can drive the locking hook 13b to rotate downward and pull back backward so that the locking hook 13b is hooked on the hub 14.
Specifically, the quick clamp base 13a includes two base brackets 13a1 arranged oppositely, two base brackets 13a1 are fixed by a plurality of connecting pins 13a2, guide holes 13a3 extending from front to back, first obliquely upward and then backward are formed on each base bracket 13a1, the locking hook driving assembly includes two intermediate links 13e, driving cranks 13c rotatably mounted on the two base brackets 13a1, and driving pins 13d having two ends respectively penetrating through the corresponding guide holes 13a3, the two intermediate links 13e are respectively located on two sides of the driving cranks 13c, one end is hinged to the middle of the driving cranks 13c, the other end is hinged to the corresponding end of the driving pins 13d, the rear end of the locking hook 13b passes through two of the connecting pins 13a2 and is rotatably mounted on the driving pins 13d, when the driving pins 13d slide along the two guide holes 13a3, under the cooperation of the connecting pins 13a2 on two sides of the locking hook 13b, the driving latch hook 13b extends and contracts while rotating.
The driving crank 13c is lifted upwards to drive the locking hook 13b to rotate downwards, and when the locking hook 13b hooks the hub, due to the structural design of the guide hole 13a3, the driving pin 13d can drive the locking hook 13b to be tensioned backwards at the same time, so that reliable connection with the hub is guaranteed. Accordingly, the rocking handle 13c is driven by pressing down, and the locking hook 13b can be extended forward while rotating upward, so that the locking hook 13b can be easily separated from the hub.
Further, the latch hook 13b includes a hook seat 13b1 and a hook body 13b2 detachably mounted on an outer end of the hook seat 13b1, the hook body 13b2 is in a hook-shaped structure, and an inner end of the hook seat 13b1 is rotatably connected to the driving pin 13 d. Hook 13b2 is removable, can carry out the flexibility according to wheel hub pattern and size and select, has further improved the commonality to can be applicable to all wheel hubs.
Meanwhile, the upper end of the hook seat 13b1 is provided with a collet and a fastening nut 13b3, and the fastening nut 13b3 is rotatably installed outside the collet. Turning the fastening nut 13b3 clockwise causes the collet to grip the hook 13b2, locking the hook 13b2 to the hook receptacle 13b 1. Accordingly, the fastening nut 13b3 is rotated counterclockwise to release the hook 13b2 from the chuck, so that the hook 13b2 can be disassembled, the structure is simple and reliable, the hook 13b2 can be locked reliably, the disassembly and the replacement are convenient, and the operation is simple.
In addition, the upper end of the driving rocking handle 13c is provided with a rubber sleeve for convenient hand-held operation.
Referring to fig. 1 and 5, the encoder bracket 5 includes a coupling frame 5a and a pressing cover 5b, one end of the coupling sleeve 3 connected to the encoder shaft 2a has a positioning boss protruding outward in a radial direction, the coupling frame 5a is mounted on the vehicle body, the encoder 2 is mounted on the coupling frame 5a, and the pressing cover 5b covers the coupling frame 5a and defines the positioning boss between the pressing cover 5b and the encoder 2. Specifically, the connecting frame 5a and the gland 5b are locked on the encoder 2 through a plurality of screws 11, and each screw 11 sequentially penetrates through the gland 5b and the connecting frame 5a and then is locked on the encoder 2, so that the encoder 2 and the coupling sleeve 3 can be stably and reliably installed.
Further, the connecting frame 5a includes a connecting disc 5a1, a connecting frame 5a2 surrounding the connecting disc 5a1, and a plurality of connecting rods 5a3 connected between the connecting disc 5a1 and the connecting frame 5a2, and the connecting disc 5a1, the connecting frame 5a2 and each connecting rod 5a3 together form a stable and reliable supporting structure. Wherein, part of the connecting rod 5a3 is lengthened outwards, and is provided with a connecting plate 5a4 at the outer end, and each connecting plate 5a4 is connected with the vehicle body 12 through a connecting bolt 5a5 respectively, so that the connecting rod is not only firm and reliable, but also can be quickly detached through the connecting bolt 5a 5.
Referring to fig. 5 and 6, the encoder 2 can be mounted on the vehicle body by the encoder bracket 5, i.e., the encoder main body of the encoder 2 is stationary with respect to the vehicle body, and the encoder shaft 2a of the encoder 2 rotates with the wheels with respect to the vehicle body. The coupling sleeve 3 is sleeved on the encoder shaft 2a of the encoder 2 in a synchronous rotating mode, specifically, one end of the coupling sleeve 3 is fixedly sleeved on the encoder shaft 2a and can drive the encoder shaft 2a to rotate synchronously, and the other end of the coupling sleeve 3 rotates synchronously along with the connecting rod 4. The sliding sleeve 8 can be axially slidably sleeved on the coupling sleeve 3, namely, the sliding sleeve 8 and the coupling sleeve 3 synchronously rotate and can axially slide along the coupling sleeve 3. One end of the connecting rod 4 is hinged to the sliding sleeve 8 through the first hinge assembly, the other end of the connecting rod 4 is hinged to the connecting rod mounting seat 1a through the second hinge assembly, the connecting rod mounting seat 1a drives the connecting rod 4 to rotate synchronously through the second hinge assembly, and the connecting rod 4 drives the encoder shaft 2a to rotate synchronously through the second hinge assembly, the sliding sleeve 8 and the coupling sleeve 3 in sequence.
Therefore, the sliding sleeve 8 moves in a direction away from the encoder 2 when the angle between the axis of the link 4 and the axis of the sleeve 3 increases, and the sliding sleeve 8 moves in a direction closer to the encoder 2 when the angle between the axis of the link 4 and the axis of the sleeve 3 decreases.
The working principle of the invention is as follows: the three-dimensional crank connecting rod mechanism is adopted, the deviation of the axis of the hub connecting chuck 1 from the axis of the encoder shaft 2a is used as a crank, the deviation changes periodically along with the rotation of the wheel, so that the length of the crank changes periodically correspondingly, and the rotation plane of the crank is perpendicular to the plane of the connecting rod 4. The link 4 moves in a direction away from the sleeve 3 when the angle between the axis of the link 4 and the axis of the sleeve 3 increases, and the link 4 moves in a direction closer to the sleeve 3 when the angle between the axis of the link 4 and the axis of the sleeve 3 decreases.
Therefore, the hub connection chuck 1, the sliding bush 8 and the connecting rod 4 together form a three-dimensional crank rod structure, and when the angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 is increased, the connecting rod 4 moves away from the coupling sleeve 3, and when the angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 is decreased, the connecting rod 4 moves closer to the coupling sleeve 3. It should be noted that the eccentric amount r between the hinge point of the connecting rod 4 and the connecting rod mounting seat 1a and the axis of the coupling sleeve 3 is the maximum (i.e. r is r) max ) When the connecting rod 4 (length L) between the first hinge assembly and the second hinge assembly projects on the axis of the coupling sleeve 3 for the shortest length (namely L) min )，
The maximum distance delta L of the sliding sleeve 8 sliding along the coupling sleeve 3 is less than or equal to L-L min ；r max Is determined by the manufacturing accuracy IT of the hub 1 Chuck manufacturing accuracy IT 2 And the mounting precision IT of the chuck on the hub 3 Is formed of r max ＝IT 1 +IT 2 +IT 3 (ii) a According to ISO international standard tolerance, for a chuck of diameter phi 300, 10-level precision, IT 1 0.21 mm; get IT the same 2 ＝0.21mm,IT 3 When the thickness is 0.21mm, r is max 0.63 mm. If L is 50mm, then
ΔL≤L-L min 0.004 mm. Therefore, the maximum displacement of the connecting rod 4 (the same sliding sleeve 8) is small, the whole set of mechanism does not need large assembling space, and the structure is very compact.
Referring to fig. 5, the first hinge assembly includes a first bolt 6 and a first bolt nut 7 threadedly engaged with the first bolt 6, a first connecting rod hinge hole 4a corresponding to the first bolt 6 is formed at one end of the connecting rod 4 inserted into the coupling sleeve 3, a gap is formed between the first connecting rod hinge hole 4a and a screw of the first bolt 6, a gap is formed between one end of the connecting rod 4 inserted into the coupling sleeve 3 and the coupling sleeve 3, two strip holes 3a corresponding to the first bolt 6 are formed at one end of the coupling sleeve 3 remote from the encoder 2, the two strip holes 3a are oppositely disposed at two sides of the first connecting rod hinge hole 4a, and both extend in the axial direction of the coupling sleeve 3, and the first cotter pin 6 is locked by the first cotter pin nut 7 after passing through the sliding sleeve 8, the two strip holes 3a, and the first hinge hole 4a of the connecting rod, so that the sliding sleeve 8 can move axially along the coupling sleeve 3.
Further, the sliding sleeve 8 is a cylindrical structure, a gap is formed between the inner peripheral surface of the sliding sleeve 8 and the outer peripheral surface of the coupling sleeve 3, and the sliding sleeve 8 can freely slide on the coupling sleeve 3 through the clearance fit of the two. Further, one end of the first screw pin 6 screwed to the first screw pin nut 7 is screwed to the slide sleeve 8, and the slide sleeve 8 can be reliably locked to the first screw pin 6.
Referring to fig. 5, the second hinge assembly includes a second screw pin 9 and a lock nut 10 adapted to the second screw pin 9, a second hinge hole 4b adapted to the second screw pin 9 is formed in one end of the connecting rod 4 inserted into the connecting rod mounting seat 1a, a gap is formed between the second hinge hole 4b and a screw of the second screw pin 9, a gap is formed between one end of the connecting rod 4 connected to the connecting rod mounting seat 1a and the connecting rod mounting seat 1a, two screw pin through holes 1b adapted to the second screw pin 9 are formed in the connecting rod mounting seat 1a, the two screw pin through holes 1b are oppositely formed at two sides of the second hinge hole 4b, and the second screw pin 9 is locked by the lock nut 10 after passing through the second hinge hole 4b and the two screw pin through holes 1 b.
Further, the connecting rod mounting seat 1a is a pair of support lugs, two screw pin through holes 1b are respectively arranged on the corresponding support lugs, and the connecting rod 4 is inserted between the pair of support lugs and has a gap with the support lugs.
Referring to fig. 5, the encoder bracket 5 includes a coupling frame 5a and a pressing cover 5b, one end of the coupling sleeve 3 connected to the encoder shaft 2a has a positioning boss protruding outward in a radial direction, the coupling frame 5a is mounted on the vehicle body, the encoder 2 is mounted on the coupling frame 5a, and the pressing cover 5b covers the coupling frame 5a and defines the positioning boss between the pressing cover 5b and the encoder 2. Specifically, the connecting frame 5a and the gland 5b are locked on the encoder 2 through a plurality of screws 11, and each screw 11 sequentially penetrates through the gland 5b and the connecting frame 5a and then is locked on the encoder 2, so that the encoder 2 and the coupling sleeve 3 can be stably and reliably installed.
Further, encoder axle 2a is flat square structure, and the one end that shaft coupling 3 and encoder axle 2a are connected has the flat square hole that suits with encoder axle 2a, through the cooperation of the two, guarantees that shaft coupling 3 and encoder axle 2a rotate in step, and simple structure is reliable, easily assembles.
Finally, the encoder shaft 2a, the coupling sleeve 3, the connecting rod 4, the sliding sleeve 8, the hub connecting chuck 1 and the wheel rotate synchronously, so that the encoder 2 can accurately record the rotation condition of the wheel, and the running speed and the running mileage of the automobile are calculated. The sliding sleeve 8, the connecting rod 4 and the hub connecting chuck 1 jointly form a three-dimensional crank rod structure, and the problem of non-axial space of the hub connecting chuck 1 and the coupling sleeve 3 which rotate synchronously can be converted into axial displacement of the connecting rod 4 (with the sliding sleeve 8) relative to the coupling sleeve 3.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and that those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides an eccentric mechanism of self-adaptation compensation encoder and mounting structure thereof, includes that wheel hub connects the chuck, can connect the encoder support on the automobile body and install the encoder on the encoder support, its characterized in that: the hub connecting chuck is provided with a plurality of quick clamps along the circumferential direction, so that the hub connecting chuck can be locked on the hub through the quick clamps;
a coupling sleeve which synchronously rotates with the encoder shaft is sleeved on the encoder shaft of the encoder, a sliding sleeve which can slide along the axial direction of the encoder shaft is sleeved on the coupling sleeve, a connecting rod mounting seat is arranged on one side, away from the hub, of the hub connecting chuck, a connecting rod is arranged between the sliding sleeve and the connecting rod mounting seat, one end of the connecting rod is hinged with the sliding sleeve through a first hinge assembly, the other end of the connecting rod is hinged with the connecting rod mounting seat through a second hinge assembly, the connecting rod mounting seat drives the connecting rod to synchronously rotate through the second hinge assembly, and the connecting rod drives the encoder shaft to synchronously rotate through the second hinge assembly, the sliding sleeve and the coupling sleeve in sequence;
when the included angle between the axis of the connecting rod and the axis of the coupling sleeve is increased, the sliding sleeve moves towards the direction far away from the encoder, and when the included angle between the axis of the connecting rod and the axis of the coupling sleeve is decreased, the sliding sleeve moves towards the direction close to the encoder;
the hub connecting chuck is circumferentially provided with a plurality of quick clamp mounting seats, each quick clamp comprises a quick clamp base, and a lock hook driving assembly which are both mounted on the quick clamp base, and the lock hook driving assembly can drive the lock hook to rotate downwards and pull back backwards so as to enable the lock hook to be hooked on the hub;
the quick clamp base comprises two base supports which are oppositely arranged, the two base supports are fixed through a plurality of connecting pins, guide holes which extend from front to back and extend upwards in an inclined mode and then backwards are formed in the base supports, the latch hook driving assembly comprises two middle connecting rods, driving rocking handles which are rotatably installed on the two base supports and driving pins, two ends of each driving pin penetrate through the corresponding guide holes respectively, the two middle connecting rods are located on two sides of the driving rocking handles respectively, one end of each middle connecting rod is hinged to the middle of the corresponding driving rocking handle, the other end of each middle connecting rod is hinged to the corresponding end of the corresponding driving pin, the rear end of the latch hook penetrates through the two connecting pins and then is rotatably installed on the driving pins, and when the driving pins slide along the two guide holes, the driving hooks can be driven to rotate and stretch simultaneously under the matching of the connecting pins on the two sides of the latch hook;
the upper end of the driving rocking handle is provided with a rubber sleeve.
2. The adaptive encoder eccentricity compensation mechanism and its installation structure of claim 1, wherein: the latch hook comprises a hook seat and a hook body detachably mounted at the outer end of the hook seat, the hook body is of a hook-shaped structure, and the inner end of the hook seat is rotatably connected with the driving pin.
3. The adaptive encoder eccentricity compensation mechanism and its mounting structure of claim 2, wherein: the upper end of the hook seat is rotatably provided with the fastening nut, the hook body can be locked on the hook seat by rotating the fastening nut clockwise, and the hook body can be unlocked by rotating the fastening nut anticlockwise.
4. The adaptive encoder eccentricity compensation mechanism and its installation structure of claim 1, wherein: the encoder bracket comprises a connecting frame and a gland, one end of the coupling sleeve, which is connected with the encoder shaft, is provided with a positioning boss which protrudes outwards in the radial direction, the connecting frame is connected with the vehicle body, the encoder is arranged on the connecting frame, the gland cover is closed on the connecting frame, and the positioning boss is limited between the gland and the encoder;
the connecting frame and the gland are locked on the encoder through a plurality of screws, and all the screws sequentially penetrate through the gland and the connecting frame and then are locked on the encoder.
5. The adaptive encoder eccentricity compensation mechanism and its installation structure of claim 1, wherein: first hinge subassembly includes first bolt and with first bolt screw-thread fit's first bolt nut, the one end that the connecting rod inserted the shaft coupling sleeve is provided with the first hinge hole of connecting rod that suits with first bolt, leaves the clearance between the screw rod of the first hinge hole of this connecting rod and first bolt, the connecting rod inserts and leaves the clearance between the one end of shaft coupling sleeve and the shaft coupling sleeve, the one end that the encoder was kept away from to the shaft coupling sleeve is provided with two bar holes that suit with first bolt, and two bar holes set up the both sides at the first hinge hole of connecting rod relatively to all extend along the axis direction of shaft coupling sleeve, first bolt passes through first bolt nut locking behind sliding sleeve, two bar holes and the first hinge hole of connecting rod, thereby makes the sliding sleeve can follow shaft coupling sleeve axial displacement.
6. The mechanism for adaptively compensating for eccentricity of an encoder and the mounting structure thereof according to claim 5, wherein: the sliding sleeve is of a cylindrical structure, and a gap is formed between the inner peripheral surface of the sliding sleeve and the outer peripheral surface of the coupling sleeve.
7. The mechanism for adaptively compensating for eccentricity of an encoder and the mounting structure thereof according to claim 5, wherein: one end of the first screw pin in threaded connection with the first screw pin nut is in threaded fit with the sliding sleeve.
8. The adaptive encoder eccentricity compensation mechanism and its installation structure of claim 1, wherein: the second hinge subassembly includes second screw round pin and with the lock nut of second screw round pin looks adaptation, the one end that the connecting rod inserted the connecting rod mount pad is provided with the connecting rod second hinge hole that suits with second screw round pin, leaves the clearance between the screw rod of this connecting rod second hinge hole and second screw round pin, leave the clearance between the one end that the connecting rod is connected with the connecting rod mount pad and the connecting rod mount pad, set up two screw round pin via holes that suit with second screw round pin on the connecting rod mount pad, two screw round pin via holes set up in connecting rod second hinge hole both sides relatively, the second screw round pin passes through the locking nut behind connecting rod second hinge hole and two screw round pin via holes and locks.
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