CN113147614B - Eccentric mechanism of self-adaptation compensation encoder and mounting structure thereof - Google Patents

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

A mechanism for adaptively compensating encoder eccentricity and its installation structure

technical field

The invention relates to the technical field of highway, bridge and tunnel information collection, in particular to a mechanism for adaptively compensating encoder eccentricity and an installation structure thereof.

Background technique

When collecting information on roads, bridges, tunnels, etc., the video equipment is installed on the car (usually located on the roof) to obtain road condition information, and the mileage from the starting point is obtained synchronously through the encoder.

During normal operation, the coaxiality of the encoder axis and the axis of the wheel's rotating shaft is required to be high, so as to reduce the wear of the encoder shaft and the hole as much as possible, and improve the safety, reliability and service life. Therefore, it is now common practice to use multiple springs to flexibly mount the encoder. Although it can alleviate the wear problem of the encoder shaft and the hole to a certain extent, its adaptability is poor and the effect is poor, and it cannot fundamentally solve the wear problem caused by the deviation of the coaxiality. There is also the problem of the cantilever beam, which is prone to damage and has a short service life.

In addition, the current assembly process of installing the encoder on the vehicle is not only complicated, it is difficult to quickly disassemble and assemble, but also has poor versatility, and different models can hardly be interchanged.

Solving the above problems has become a top priority.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a mechanism for adaptively compensating for the eccentricity of an encoder and an installation structure thereof.

Its technical solutions are as follows:

A mechanism for adaptively compensating for encoder eccentricity and its installation structure, including a hub connection chuck, an encoder bracket that can be connected to a vehicle body, and an encoder installed on the encoder bracket, the main points of which are: the hub connection card The disc is provided with several quick clips in the circumferential direction, so that the hub connecting chuck can be locked on the hub by the quick clips;

The encoder shaft of the encoder is sleeved with a coupling sleeve that rotates synchronously with it, the coupling sleeve is sleeved with a sliding sleeve that can slide along its axial direction, and the side of the hub connecting chuck away from the hub is provided with a connecting sleeve. A rod mounting seat, 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, and the other end is hinged with the connecting rod mounting seat through a second hinge assembly, so The connecting rod mounting seat drives the connecting rod to rotate synchronously through the second hinge assembly, and the connecting rod drives the encoder shaft to rotate synchronously through the second hinge assembly, the sliding sleeve and the coupling sleeve in turn;

When the angle between the axis of the connecting rod and the axis of the coupling sleeve increases, the sliding sleeve moves away from the encoder. When the angle between the axis of the connecting rod and the axis of the coupling sleeve decreases, The sliding sleeve moves towards the encoder.

The working principle of the present invention is as follows: a three-dimensional crank connecting rod mechanism is adopted, and the deviation of the axis line of the hub connecting the chuck to the axis line of the encoder shaft is used as the crank, and the magnitude of the deviation is periodically made with the rotation of the wheel. Therefore, the length of the crank also undergoes corresponding periodic changes, and the rotation plane of the crank is perpendicular to the centerline of the connecting rod curved surface. When the angle between the axis of the connecting rod and the axis of the coupling sleeve increases, the connecting rod moves away from the coupling sleeve, and when the angle between the axis of the connecting rod and the axis of the coupling sleeve decreases , the connecting rod moves towards the direction close to the coupling sleeve.

With the above structure, the encoder and its auxiliary structures can be quickly installed and disassembled through the quick clamp, with simple operation and high efficiency; the connecting rod mounting seat, the connecting rod and the sliding sleeve together form a three-dimensional crank connecting rod structure, which can rotate synchronously The spatial difference between the hub connecting chuck and the coupling sleeve is transformed into an axial displacement, so that the assembly of the encoder not only does not require precise coaxiality, but also greatly reduces the difficulty of assembly, and the installation of the three-dimensional crank connecting rod structure is reliable. It has extremely high performance, solves the problem of the cantilever beam installed in the traditional encoder, greatly prolongs the service life, and is a rigid connection, which is not affected by road conditions, ensuring the stability and detection accuracy of the encoder. In addition, it is suitable for wheels of different sizes. , greatly improving the versatility.

Preferably, the wheel hub connecting chuck is provided with several quick clip mounting seats along the circumferential direction, and the quick clips all include a quick clip base and a lock hook and a lock hook drive assembly installed on the quick clip base. The locking hook driving assembly can drive the locking hook to rotate downwards and pull it backwards at the same time, so that the locking hook is fastened on the wheel hub.

With the above structure, the lock hook can hook the wheel hub stably and reliably, and is not easy to fall off, and the operation is also simple, and the lock hook has good versatility and can be applied to wheel hubs with different thicknesses.

Preferably: the quick-clamp base includes two base brackets arranged opposite each other, the two base brackets are fixed by a plurality of connecting pins, and the base brackets are provided with diagonally extending from front to back, first upward and then backward. a guide hole, the lock hook drive assembly includes two intermediate links, a drive rocker rotatably installed on the two base brackets, and a drive pin pierced through the corresponding guide holes at both ends, and the two intermediate links are respectively It is located on both sides of the driving rocker, and one end is hinged with the middle of the driving rocker, and the other end is hinged with the corresponding end of the driving pin. The rear end of the lock hook is rotatably installed on the driving pin after passing through two of the connecting pins. , when the driving pin slides along the two guide holes, under the cooperation of the connecting pins on both sides of the lock hook, the lock hook can be driven to rotate and expand and contract at the same time.

With the above structure, the structure is ingenious, stable and reliable, the lock hook rotates downward, and when the hub is removed, it can be pulled backward at the same time to ensure a reliable connection with the wheel hub, and the lock hook can be extended forward at the same time as it rotates upward. , so that the lock hook can be easily separated from the hub.

Preferably, the locking hook includes a hook seat and a hook body detachably mounted on the outer end of the hook seat, the hook body is in a hook-like structure, and the inner end of the hook seat is rotatably connected with the driving pin.

With the above structure, the hook body is detachable, and can be flexibly selected according to the style and size of the wheel hub, which further improves the versatility and can be applied to all wheel hubs.

Preferably, a tightening nut is rotatably installed on the upper end of the hook seat, and the hook body can be locked on the hook seat by rotating the tightening nut clockwise, and the hook body can be unlocked by rotating the tightening nut counterclockwise.

By adopting the above structure, the structure is simple and reliable, not only can the hook body be locked reliably, but also easy to dismantle and replace, and the operation is simple.

Preferably: the encoder bracket includes a connecting frame and a gland, one end of the coupling sleeve connected to the encoder shaft has a positioning boss protruding radially outward, the connecting frame is connected to the vehicle body, and the encoder is installed 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 press cover are both locked on the encoder by several screws, and each screw passes through the press cover and the connecting frame in sequence and then is locked on the encoder.

By adopting the above structure, the encoder and the coupling sleeve can be stably and reliably installed, and the synchronous rotation of the coupling sleeve and the encoder shaft can be ensured, the structure is simple and reliable, and the assembly is easy.

Preferably, the first hinge assembly includes a first screw pin and a first screw pin nut threadedly matched with the first screw pin, and one end of the connecting rod inserted into the coupling sleeve is provided with a connecting rod compatible with the first screw pin A first hinge hole of the rod, there is a gap between the first hinge hole of the connecting rod and the screw rod of the first screw pin, and there is a gap between the end of the connecting rod inserted into the coupling sleeve and the coupling sleeve, the coupling shaft The end of the sleeve away from the encoder is provided with two bar-shaped holes adapted to the first screw pins, and the two bar-shaped holes are oppositely arranged on both sides of the first hinge hole of the connecting rod, and both extend along the axis direction of the coupling sleeve The first screw pin is locked through the first screw pin nut after passing through the sliding sleeve, the two strip holes and the first hinge hole of the connecting rod, so that the sliding sleeve can move axially along the coupling sleeve.

By adopting the above structure, the connecting rod can move in the axial direction of the coupling sleeve through the first screw pin, and the connecting rod can swing relative to the first screw pin through the reserved clearance, so that the connecting rod can swing approximately on a conical surface. , which converts the problem of different axles in the space between the hub connecting the chuck and the coupling sleeve into the axial movement of the connecting rod on the coupling sleeve. The structure is simple and reliable, and it is easy to assemble.

Preferably, the sliding sleeve has a cylindrical structure, and there is a gap between the inner peripheral surface of the sliding sleeve and the outer peripheral surface of the coupling sleeve.

By adopting the above structure, the sliding sleeve is convenient to slide freely on the coupling sleeve through the clearance fit between the two.

Preferably, one end of the first screw pin threadedly connected with the first screw pin nut is threaded with the sliding sleeve.

With the above structure, the sliding sleeve can be securely locked on the first screw pin.

Preferably: the second hinge assembly includes a second screw pin and a lock nut adapted to the second screw pin, and one end of the connecting rod inserted into the connecting rod mounting seat is provided with a connecting rod that is adapted to the second screw pin There is a second hinge hole of the rod, a gap is left between the second hinge hole of the connecting rod and the screw rod of the second screw pin, and a gap is left between the end of the connecting rod and the connecting rod mounting seat and the connecting rod mounting seat, so The connecting rod mounting seat is provided with two screw pin through holes adapted to the second screw pin, the two screw pin through holes are arranged oppositely on both sides of the second hinge hole of the connecting rod, and the second screw pin passes through the connecting rod. The second hinge hole of the rod and the two screw pins are locked through the lock nut after passing through the hole.

By adopting the above structure, the connecting rod can swing relative to the second screw pin by reserving the clearance, so that the connecting rod can swing similar to the conical surface with the cooperation, and the spatial difference between the hub connecting the chuck and the coupling sleeve is transformed into The axial movement of the connecting rod on the coupling sleeve has a simple and reliable structure and is easy to assemble.

Compared with the prior art, the beneficial effects of the present invention:

An adaptive compensation encoder eccentricity mechanism and its installation structure adopting the above technical solutions are simple and reliable in structure, ingenious in design, and easy to implement; the encoder and its auxiliary structure can be quickly installed and disassembled through a quick clamp, and the operation is simple. High efficiency; the connecting rod mounting seat, connecting rod and sliding sleeve together form a three-dimensional crank connecting rod structure, which can convert the spatially non-axial problem of the synchronously rotating hub connecting the chuck and the coupling sleeve into an axial displacement, thereby The assembly of the encoder not only does not require precise coaxial, but greatly reduces the difficulty of assembly, and the installation reliability of the three-dimensional crank connecting rod structure is extremely high, which solves the problem of the cantilever beam installed in the traditional encoder, greatly prolongs the service life, and is rigid The connection is not affected by road conditions, which ensures the stability and detection accuracy of the encoder. In addition, it is suitable for wheels of different sizes, which greatly improves the versatility.

Description of drawings

Fig. 1 is the installation structure schematic diagram of the present invention;

Fig. 2 is the schematic diagram of the installation structure of the hub connecting chuck and the hub;

Fig. 3 is the structural representation of quick clamp;

Fig. 4 is the structural representation of quick clamp base;

5 is a schematic diagram of the connection relationship between the encoder, the coupling sleeve, the connecting rod and the hub connection chuck;

FIG. 6 is a schematic diagram of the cooperation principle of the coupling sleeve, the connecting rod and the hub connecting chuck.

Detailed ways

The present invention will be further described below with reference to the embodiments and the accompanying drawings.

As shown in Figures 1 to 3, a mechanism for adaptively compensating for encoder eccentricity and its installation structure mainly include a hub connecting chuck 1, an encoder bracket 5 that can be connected to a vehicle body 12, and an encoder bracket installed on the encoder bracket Encoder 2 on 5.

Referring to FIG. 2 , the hub connecting chuck 1 is provided with several quick clips 13 in the circumferential direction, so that the wheel hub connecting chuck 1 can be locked on the wheel hub 14 by the quick clips 13 .

Referring to FIGS. 2 and 3 , the hub connecting chuck 1 is provided with a plurality of quick-clamp mounting bases 1c along the circumferential direction, and the quick-clamps 13 each include a quick-clamp base 13a and a locking hook 13b and The locking hook driving assembly can drive the locking hook 13b to rotate downwards and pull it backwards at the same time, so that the locking hook 13b is fastened on the wheel hub 14 .

Specifically, the quick-clamp base 13a includes two base brackets 13a1 arranged opposite to each other, the two base brackets 13a1 are fixed by a plurality of connecting pins 13a2, and the base brackets 13a1 are provided with diagonally upward and then backward from front to back. The extended guide hole 13a3, the lock hook drive assembly includes two intermediate links 13e, a drive rocker 13c rotatably mounted on the two base brackets 13a1 brackets, and the two ends of the drive pins 13d respectively protruding from the corresponding guide holes 13a3 , the two intermediate links 13e are respectively located on both sides of the drive crank 13c, one end is hinged with the middle of the drive crank 13c, the other end is hinged with the corresponding end of the drive pin 13d, and the rear end of the lock hook 13b passes through the two connections The pin 13a2 is rotatably mounted on the driving pin 13d. When the driving pin 13d slides along the two guide holes 13a3, the lock hook 13b can rotate and expand and contract under the cooperation of the connecting pins 13a2 on both sides of the lock hook 13b.

Lift the driving crank handle 13c to drive the locking hook 13b to rotate downward. 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 pulled backward at the same time to ensure reliable connection with the wheel hub. Connection. Correspondingly, when the driving crank handle 13c is pressed down, the locking hook 13b can be extended forward while rotating upward, so that the locking hook 13b can be easily separated from the wheel hub.

Further, the locking hook 13b includes a hook base 13b1 and a hook body 13b2 detachably mounted on the outer end of the hook base 13b1. The hook body 13b2 has a hook-like structure, and the inner end of the hook base 13b1 is rotatably connected to the driving pin 13d. The hook body 13b2 is detachable and can be flexibly selected according to the style and size of the wheel hub, which further improves the versatility and can be applied to all wheel hubs.

Meanwhile, the upper end of the hook seat 13b1 is provided with a collet and a tightening nut 13b3, and the tightening nut 13b3 is rotatably installed outside the collet. By turning the tightening nut 13b3 clockwise, the collet can clamp the hook body 13b2, and the hook body 13b2 can be locked on the hook seat 13b1. Correspondingly, turning the tightening nut 13b3 counterclockwise enables the collet to release the hook body 13b2, so that the hook body 13b2 can be disassembled.

In addition, the upper end of the driving crank handle 13c is provided with a rubber sleeve to facilitate hand-held operation.

1 and 5, the encoder bracket 5 includes a connecting 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 radially outward, and the connecting frame 5a is installed On the vehicle body, the encoder 2 is mounted on the connecting frame 5a, the press cover 5b is closed on the connecting frame 5a, and the positioning boss is defined between the press cover 5b and the encoder 2. Specifically, the connecting frame 5a and the pressing cover 5b are both locked on the encoder 2 by a number of screws 11, and each screw 11 passes through the pressing cover 5b and the connecting frame 5a in sequence and then is locked on the encoder 2, which can be stably and reliably Install encoder 2 and coupling sleeve 3.

Further, the connecting frame 5a includes a connecting plate 5a1, a connecting frame 5a2 surrounding the connecting plate 5a1 and a plurality of connecting rods 5a3 connected between the connecting plate 5a1 and the connecting frame 5a2, the connecting plate 5a1, the connecting frame 5a2 and the connecting rods. 5a3 together constitute a stable and reliable support structure. Some of the connecting rods 5a3 are elongated outward and are provided with connecting plates 5a4 at the outer ends. Each connecting plate 5a4 is connected to the vehicle body 12 by connecting bolts 5a5, which is not only firm and reliable, but also can be quickly disassembled through the connecting bolts 5a5.

5 and 6, the encoder 2 can be installed on the vehicle body through the encoder bracket 5, that is, the encoder body of the encoder 2 is stationary relative to the vehicle body, and the encoder shaft 2a of the encoder 2 rotates relative to the vehicle body with the wheel . The coupling sleeve 3 is synchronously sleeved on the encoder shaft 2a of the encoder 2. Specifically, one end of the coupling sleeve 3 is fixedly sleeved on the encoder shaft 2a, which can drive the encoder shaft 2a to rotate synchronously. The other end of 3 rotates synchronously with the connecting rod 4. The sliding sleeve 8 is sleeved on the coupling sleeve 3 in an axially slidable manner, that is, the sliding sleeve 8 rotates synchronously with the coupling sleeve 3 and can slide axially along the coupling sleeve 3 . One end of the connecting rod 4 is hinged with the sliding sleeve 8 through the first hinge assembly, and the other end is hinged with 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. The encoder shaft 2a is driven to rotate synchronously through the second hinge assembly, the sliding sleeve 8 and the coupling sleeve 3 in turn.

Therefore, when the included angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 increases, the sliding sleeve 8 moves away from the encoder 2 . When the axis of the connecting rod 4 and the axis of the coupling sleeve 3 When the included angle between them decreases, the sliding sleeve 8 moves toward the direction close to the encoder 2 .

The working principle of the present invention is as follows: a three-dimensional crank connecting rod mechanism is adopted, and the deviation of the axis line of the hub connecting chuck 1 to the axis line of the encoder shaft 2a is used as the crank, and the size of the deviation amount depends on the rotation of the wheel. The length of the crank also changes periodically, and the rotation plane of the crank is perpendicular to the plane of the connecting rod 4 . When the angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 increases, the connecting rod 4 moves away from the coupling sleeve 3. When the axis of the connecting rod 4 and the axis of the coupling sleeve 3 are between the axes When the angle between them decreases, the connecting rod 4 moves toward the direction close to the coupling sleeve 3 .

滑套8沿联轴套3轴向滑动的最大距离ΔL≤L-L_min；r_max的值由轮毂的制造精度IT₁、卡盘制造精度IT₂和卡盘在轮毂上的安装精度IT₃构成，即r_max＝IT₁+IT₂+IT₃；根据ISO国际标准公差规定，对于直径φ300的卡盘，取10级精度，IT₁＝0.21mm；同样取IT₂＝0.21mm,IT₃＝0.21mm,则r_max＝0.63mm。取L＝50mm,则

ΔL≤L-L_min＝0.004mm。由此可见，连杆4(同滑套8)的最大位移也很小，整套机构无需很大的装配空间，结构十分紧凑。Therefore, the hub connecting chuck 1, the sliding sleeve 8 and the connecting rod 4 together form a three-dimensional crank rod structure. When the angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 increases, the connecting rod 4 moves away from The direction of the coupling sleeve 3 moves, and when the included angle between the axis of the connecting rod 4 and the axis of the coupling sleeve 3 decreases, the connecting rod 4 moves toward the direction close to the coupling sleeve 3 . It should be pointed out that when the eccentricity 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 largest (ie, r _max ), it is located between the first hinge assembly and the second hinge assembly. The projection length of the part of the connecting rod 4 (length L) on the axis of the coupling sleeve 3 is the shortest (that is, L _min ),

The maximum distance _{ΔL≤LLmin that the sliding sleeve 8 slides along the axial direction of the coupling sleeve 3; the value of rmax is} composed of the manufacturing accuracy IT ₁ of the hub, the manufacturing accuracy IT ₂ of the chuck and the mounting accuracy IT ₃ of the chuck on the hub, That is, r _max =IT ₁ +IT ₂ +IT ₃ ; according to the ISO international standard tolerance regulations, for a chuck with a diameter of φ300, take the 10-level accuracy, IT ₁ =0.21mm; also take IT ₂ =0.21mm, IT ₃ =0.21 mm, then r _max =0.63mm. Take L=50mm, then

ΔL≦LL _min =0.004 mm. It can be seen from this that the maximum displacement of the connecting rod 4 (same as the sliding sleeve 8 ) is also very small, the whole mechanism does not need a large assembly space, and the structure is very compact.

Referring to FIG. 5 , the first hinge assembly includes a first screw pin 6 and a first screw pin nut 7 threadedly engaged with the first screw pin 6 , and the end of the connecting rod 4 inserted into the coupling sleeve 3 is provided with the first screw pin 6 The corresponding first hinge hole 4a of the connecting rod, there is a gap between the first hinge hole 4a of the connecting rod and the screw of the first screw pin 6, and the end of the connecting rod 4 inserted into the coupling sleeve 3 and the coupling sleeve 3 leave a gap. There is a gap, and the end of the coupling sleeve 3 away from the encoder 2 is provided with two bar-shaped holes 3a adapted to the first screw pin 6, and the two bar-shaped holes 3a are oppositely arranged on both sides of the first hinge hole 4a of the connecting rod , and all extend along the axis direction of the coupling sleeve 3, the first screw pin 6 passes through the sliding sleeve 8, the two strip holes 3a and the first hinge hole 4a of the connecting rod and is locked by the first screw pin nut 7, so that the The sliding sleeve 8 can move axially along the coupling sleeve 3 .

Further, the sliding sleeve 8 is a cylindrical structure, and there is a gap between the inner peripheral surface of the sliding sleeve 8 and the outer peripheral surface of the coupling sleeve 3, and the clearance between the two is convenient for the sliding sleeve 8 to be free on the coupling sleeve 3. slide. In addition, one end of the first screw pin 6 that is screwed with the first screw pin nut 7 is screwed with the sliding sleeve 8 , so that the sliding sleeve 8 can be reliably locked on the first screw pin 6 .

Referring to FIG. 5 , the second hinge assembly includes a second screw pin 9 and a locking nut 10 adapted to the second screw pin 9 , and the end of the connecting rod 4 inserted into the connecting rod mounting seat 1 a is provided with the second screw pin 9 The corresponding second hinge hole 4b of the connecting rod, there is a gap between the second hinge hole 4b of the connecting rod and the screw of the second screw pin 9, and the end of the connecting rod 4 connected with the connecting rod mounting seat 1a is connected with the connecting rod mounting seat 1a There is a gap between them, and the connecting rod mounting seat 1a is provided with two screw pin through holes 1b that are adapted to the second screw pin 9, and the two screw pin through holes 1b are oppositely arranged on both sides of the second hinge hole 4b of the connecting rod. , the second screw pin 9 is locked by the locking nut 10 after passing through the second hinge hole 4b of the connecting rod and the two screw pins passing through the hole 1b.

Further, the connecting rod mounting seat 1a is a pair of lugs, two screw pin through holes 1b are respectively opened on the corresponding lugs, the connecting rod 4 is inserted between the pair of lugs, and there is a gap between the lugs and the lugs. .

Please refer to FIG. 5 , the encoder bracket 5 includes a connecting 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 radially outward, and the connecting frame 5a is installed on the vehicle body Above, the encoder 2 is installed on the connecting frame 5a, the pressing cover 5b is closed on the connecting frame 5a, and the positioning boss is defined between the pressing cover 5b and the encoder 2. Specifically, the connecting frame 5a and the pressing cover 5b are both locked on the encoder 2 by a number of screws 11, and each screw 11 passes through the pressing cover 5b and the connecting frame 5a in sequence and then is locked on the encoder 2, which can be stably and reliably Install encoder 2 and coupling sleeve 3.

Further, the encoder shaft 2a is a flat square structure, and one end of the coupling sleeve 3 connected with the encoder shaft 2a has a flat square hole adapted to the encoder shaft 2a, through the cooperation of the two, it is ensured that the coupling sleeve 3 and the encoder The shaft 2a rotates synchronously, the structure is simple and reliable, and it is easy to assemble.

Finally, it should be pointed out that 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 of the wheel, and then calculate The speed and mileage of the car. Through the sliding sleeve 8, the connecting rod 4 and the hub connecting chuck 1, a three-dimensional crank-rod structure is formed together, which can convert the synchronously rotating hub connecting chuck 1 and the coupling sleeve 3 into the connecting rod 4 ( The same as the axial displacement of the sliding sleeve 8) relative to the coupling sleeve 3.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those of ordinary skill in the art can make a variety of similar It is indicated that such transformations fall within the protection scope of the present invention.

Claims (8)

1. a mechanism for adaptively compensating for encoder eccentricity and its mounting structure, comprising wheel hub connection chuck, the encoder bracket that can be connected on the vehicle body and the encoder installed on the encoder bracket, it is characterized in that: the wheel hub The connecting chuck is provided with several quick clips in the circumferential direction, so that the hub connecting chuck can be locked on the wheel hub through the quick clips; The encoder shaft of the encoder is sleeved with a coupling sleeve that rotates synchronously with it, the coupling sleeve is sleeved with a sliding sleeve that can slide along its axial direction, and the side of the hub connecting chuck away from the hub is provided with a connecting sleeve. A rod mounting seat, 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, and the other end is hinged with the connecting rod mounting seat through a second hinge assembly, so The connecting rod mounting seat drives the connecting rod to rotate synchronously through the second hinge assembly, and the connecting rod drives the encoder shaft to rotate synchronously through the second hinge assembly, the sliding sleeve and the coupling sleeve in turn; When the angle between the axis of the connecting rod and the axis of the coupling sleeve increases, the sliding sleeve moves away from the encoder. When the angle between the axis of the connecting rod and the axis of the coupling sleeve decreases, The sliding sleeve moves towards the direction close to the encoder; The hub connecting chuck is provided with a number of quick clip mounting seats along the circumferential direction, and the quick clips all include a quick clip base and a lock hook and a lock hook drive assembly which are all installed on the quick clip base, and the lock hook drives the The assembly can drive the lock hook to rotate downwards and pull it back to make the lock hook fasten on the wheel hub; The quick-clamp base includes two base brackets arranged opposite each other, the two base brackets are fixed by a plurality of connecting pins, and the base brackets are provided with guide holes extending obliquely upward and then backward from front to back, The lock hook drive assembly includes two intermediate links, a drive rocker rotatably mounted on the two base brackets, and a drive pin pierced through corresponding guide holes at both ends, and the two intermediate links are located on the drive rocker respectively. two sides, one end is hinged with the middle of the driving crank, the other end is hinged with the corresponding end of the driving pin, the rear end of the lock hook passes through two of the connecting pins and is rotatably installed on the driving pin, the driving pin When sliding along the two guide holes, under the cooperation of the connecting pins on both sides of the lock hook, the lock hook can be driven to rotate while expanding and contracting; The upper end of the driving crank handle is provided with a rubber sleeve. 2 . The mechanism for adaptively compensating for encoder eccentricity and its installation structure according to claim 1 , wherein the locking hook comprises a hook seat and a hook body detachably installed on the outer end of the hook seat, and the The hook body has a hook-like structure, and the inner end of the hook seat is rotatably connected with the driving pin. 3. A mechanism for self-adapting compensating encoder eccentricity and its installation structure according to claim 2, characterized in that: the upper end of the hook seat is rotatably installed with a tightening nut, and rotating the tightening nut clockwise can Lock the hook body on the hook base, and turn the tightening nut counterclockwise to unlock the hook body. 4. A mechanism for adaptively compensating encoder eccentricity and its installation structure according to claim 1, wherein the encoder bracket comprises a connecting frame and a gland, and the coupling sleeve is connected with the encoder shaft One end has a positioning boss protruding radially outward, the connecting frame is connected with the vehicle body, the encoder is mounted on the connecting frame, the gland is covered on the connecting frame, and the positioning boss is limited to the pressure between the cover and the encoder; The connecting frame and the press cover are both locked on the encoder by several screws, and each screw passes through the press cover and the connecting frame in sequence and then is locked on the encoder. 5 . The mechanism for adaptively compensating encoder eccentricity and its installation structure according to claim 1 , wherein the first hinge assembly comprises a first screw pin and a first screw pin threadedly engaged with the first screw pin. 6 . A screw pin nut, the end of the connecting rod inserted into the coupling sleeve is provided with a first hinge hole of the connecting rod that is adapted to the first screw pin, and a gap is left between the first hinge hole of the connecting rod and the screw rod of the first screw pin , there is a gap between the end of the connecting rod that is inserted into the coupling sleeve and the coupling sleeve, and the end of the coupling sleeve away from the encoder is provided with two strip-shaped holes adapted to the first screw pins, and the two strips The holes are oppositely arranged on both sides of the first hinge hole of the connecting rod, and both extend along the axis direction of the coupling sleeve. The first screw pin passes through the sliding sleeve, the two strip holes and the first hinge hole of the connecting rod. The first screw pin nut is locked, so that the sliding sleeve can move axially along the coupling sleeve. 6 . The mechanism for adaptively compensating encoder eccentricity and its installation structure according to claim 5 , wherein the sliding sleeve is a cylindrical structure, and the inner peripheral surface of the sliding sleeve and the coupling sleeve There is a gap between the outer peripheral surfaces. 7 . The mechanism for adaptively compensating for encoder eccentricity and its installation structure according to claim 5 , wherein one end of the first screw pin and the first screw pin nut threaded connection is threadedly matched with the sliding sleeve. 8 . 8 . The mechanism for adaptively compensating encoder eccentricity and its installation structure according to claim 1 , wherein the second hinge assembly comprises a second screw pin and a lock adapted to the second screw pin. 9 . Tighten the nut, the end of the connecting rod inserted into the connecting rod mounting seat is provided with a second hinge hole of the connecting rod that is adapted to the second screw pin, and there is a gap between the second hinge hole of the connecting rod and the screw rod of the second screw pin , there is a gap between the end of the connecting rod and the connecting rod mounting seat and the connecting rod mounting seat, and the connecting rod mounting seat is provided with two screw pin through holes adapted to the second screw pin, two The screw pin through holes are relatively arranged on both sides of the second hinge hole of the connecting rod, and the second screw pin is locked by the locking nut after passing through the second hinge hole of the connecting rod and the two screw pin through holes.

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