Needle roller motion rotary transmission mechanism

Abstract

The present invention discloses a needle roller motion rotation transmission mechanism, specifically relating to the field of engineering transmission technology, which includes a housing, a motor, a groove bar, a controller, and a self-repairing transmission component; wherein the self-repairing transmission component includes a linkage column, a groove ring, a plurality of roller shafts, a linkage bar, a main concave bar, a main needle roller, a secondary concave bar, a secondary needle roller, a positioning sleeve, and a rotating shaft. Through the self-repairing transmission component, the present invention can quickly perform self-repairing operations on the worn positions of the main needle roller and the main contact ring, so that the secondary needle roller and the secondary contact ring can perform self-repairing contact. The rotation transmission mechanism is applicable to fields with high precision and strict requirements for transmission continuity and service life, thus solving the problems that it is necessary to stop the machine for disassembly and repair in the later stage of maintenance, the maintenance interval is long, the maintenance cost is high, and it is difficult to be applicable to technical fields with high precision and strict requirements for transmission continuity and service life.

Description

Technical Field

[0001] The present invention relates to the field of engineering transmission technology, and more specifically, to a needle roller movement and rotation transmission mechanism. Background Art

[0002] The needle roller movement and rotation transmission mechanism has a wide range of applications in the field of mechanical engineering. Due to its unique structural design, the needle roller can significantly reduce the frictional resistance during movement, thereby improving the transmission efficiency. In addition, the needle roller bearing has good load-bearing capacity and anti-wear performance, ensuring the stable operation of the transmission mechanism.

[0003] In the existing published literature, the patent with the patent publication number CN101988565A discloses a transmission mechanism with a deceleration function. In this transmission mechanism, each needle roller is respectively accommodated in an accommodation space and is in contact with a claw arm, an intermediate ring, and a passive shaft sleeve; through the frictional action between each needle roller and the intermediate ring, the rotation of the lead screw in a specific direction is hindered to achieve the deceleration effect. However, this technology still has the following defects.

[0004] In the rotation transmission mechanism, the needle roller bearing transmits power through rolling contact, and its core depends on the precise fit between the needle roller and the annular track. However, under high-speed and high-load working conditions, the dynamic friction between the needle roller and the contact surface will cause progressive wear, directly affecting the accuracy and service life of the rotation transmission mechanism. During the later maintenance period, it is necessary to stop the machine for disassembly and repair, the maintenance interval is long, and the maintenance cost is high, making it difficult to be applicable to technical fields with high precision and strict requirements for transmission continuity and service life. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a needle roller movement and rotation transmission mechanism, including a housing, a motor, a grooved bar, and a controller. The motor is fixed on one side of the inner wall of the housing, the grooved bar is fixed on the output end of the motor, and a self-repairing transmission component is installed on the inner wall of the grooved bar; the self-repairing transmission component includes a linkage column slidably installed on the inner wall of the grooved bar, and one end of the linkage column is fixedly connected to a grooved ring. A plurality of rolling shafts are slidably connected to the inner wall of the grooved ring. One end of each rolling shaft is fixedly connected to a linkage bar. A main concave strip is fixedly installed on one side of the linkage bar. A main needle roller is rollingly connected to the inner wall of the main concave strip; a secondary concave strip is provided on one side of the main concave strip. A secondary needle roller is rollingly connected to the inner wall of the secondary concave strip. The other side of the linkage bar is slidably connected to a positioning sleeve, and a rotating shaft is fixedly connected to the inner wall of the positioning sleeve.

[0006] Preferably, the plurality of rollers are arranged in an equidistant circular distribution, the plurality of linkage bars are arranged in an equidistant circular distribution, the secondary concave bar is fixedly connected to the linkage bar, and both the primary concave bar and the secondary concave bar are slidably connected to the positioning sleeve; the controller is electrically connected to the motor. One end of the rotating shaft is fixedly connected to a driving motor, the rotating shaft is rotatably connected to the housing, and the driving motor is fixedly connected to the housing; the other end of the rotating shaft extends outside the housing and is fixedly connected to a transmission end. Both sides of the groove bar are slidably connected with limiting rings, the limiting rings are fixedly connected to the linkage columns, the two limiting rings are symmetrically arranged with respect to the groove bar, and the vertical cross-sectional shape of the two limiting rings is circular.

[0007] In this technical solution, the motor drives the groove bar to rotate counterclockwise, the groove bar drives the linkage column to rotate counterclockwise, the groove ring drives the plurality of rollers to move leftward, and the linkage bar drives the primary concave bar to move leftward, so that the primary rolling needle no longer contacts the primary contact ring. The linkage bar drives the secondary concave bar to move leftward, and the secondary rolling needle can automatically be located at the repair position of the primary rolling needle.

[0008] Preferably, a linkage shaft is slidably connected to the inner wall of the groove bar near its bottom end, and a linkage rod is fixedly installed at one end of the linkage shaft; a sliding bar is fixedly connected to one end of the linkage rod, an outer sleeve is slidably sleeved on the outer wall of the sliding bar, and the outer sleeve is fixedly connected to the housing. The outer sleeve is used to guide the movement of the sliding bar. A primary contact ring is fixedly connected to one side of the sliding bar, and a secondary contact ring is arranged on one side of the primary contact ring. The secondary contact ring is fixedly connected to the sliding bar; the primary contact ring is in rolling connection with the primary rolling needle. The outer wall of the linkage shaft is a smooth surface, and the outer walls of the sliding bar and the inner wall of the outer sleeve are both smooth surfaces. The vertical cross-sectional shapes of the secondary contact ring and the primary contact ring are both circular, and both the secondary contact ring and the primary contact ring are made of graphene material.

[0009] In this technical solution, when the groove bar rotates counterclockwise, the linkage shaft drives the linkage rod to move rightward, the sliding bar will drive the primary contact ring to move rightward, and both the primary contact ring and the secondary contact ring move rightward along the inner wall of the outer sleeve. The secondary rolling needle and the secondary contact ring can perform self-repair contact, and the damaged primary rolling needle and primary contact ring can be switched to the side position. When the distance value moved by the groove ring is the same as the distance value set by the controller, the motor is turned off by the controller.

[0010] Preferably, a distance sensor is installed on one side of the groove ring. The distance sensor is used to sense the moving distance of the groove ring. The controller is located on one side of the distance sensor, and the distance sensor is electrically connected to the controller. A contact roller is rollingly connected to the outer wall of the rotating shaft. Support rings are provided on both sides of the contact roller. A shaft column is connected to the inner wall of the contact roller. Both of the support rings are fixedly connected to the shaft column, and both of the support rings are rotatably connected to the contact roller. One end of the shaft column is fixedly connected to a sensing rod. A sensing end is fixedly connected to the top of the sensing rod. A pressure sensor is fixedly installed on the top of the sensing end. The pressure sensor is fixedly connected to the housing. The two support rings are symmetrically arranged with respect to the contact roller. The outer walls of the contact roller and the rotating shaft are both smooth surfaces. The center point of the contact roller and the center point of the shaft column are on the same horizontal line. The pressure sensor is used to sense the extrusion force of the sensing end.

[0011] In this technical solution, as the main roller pin and the main contact ring are continuously in contact and worn, the gap between the main roller pin and the main contact ring becomes larger, resulting in a larger rotation fluctuation of the rotating shaft. The contact roller will move upward under the action of the wave force of the rotating shaft, and the two support rings limit the rotation of the contact roller. The sensing rod drives the sensing end to move upward and fluctuate and squeeze. When the pressure value sensed by the pressure sensor exceeds the pressure value set by the controller, a wear failure problem occurs.

[0012] The technical effects and advantages of the present invention:

[0013] 1. Through the self-repairing transmission component of the present invention, it is known that the gap between the main roller pin and the main contact ring becomes larger. The motor drives the groove bar to rotate counterclockwise, the linkage column drives the groove ring to move leftward, the groove ring drives multiple roller shafts to move leftward, the main roller pin no longer contacts the main contact ring, and the auxiliary roller pin can automatically be located at the repair position of the main roller pin. Under high-speed and high-load working conditions, the positions of the worn main roller pin and the main contact ring can be quickly self-repaired. In this way, the auxiliary roller pin and the auxiliary contact ring can perform self-repairing contact, solving the pain points of irreversible wear and high maintenance cost in traditional rotary transmission mechanisms. The rotary transmission mechanism is applicable to fields with high precision and strict requirements for transmission continuity and service life.

[0014] 2. When the groove bar rotates counterclockwise in the present invention, the groove bar will drive the linkage shaft to move rightward, the slide bar will drive the main contact ring to move rightward, the main contact ring will drive the auxiliary contact ring to move rightward, and the auxiliary contact ring moves to the position where it contacts the auxiliary roller pin. In this way, the auxiliary roller pin and the auxiliary contact ring can perform self-repairing contact and quickly move to the self-repairing wear position without disassembly and shutdown, with lower maintenance cost and better durability.

[0015] 3. In the present invention, due to continuous contact wear between the main roller needle and the main contact ring, the gap between the main roller needle and the main contact ring becomes larger. The rotating shaft drives the contact roller to roll, the contact roller drives the shaft column to move upward in a fluctuating manner, the sensing rod drives the sensing end to move upward in a fluctuating manner and squeeze, and the sensing end moves upward and squeezes on the pressure sensor, resulting in abnormal wear noise. Then, the driving motor is turned off to achieve self-repairing contact between the secondary contact ring and the secondary roller needle.

[0016] Due to the mutual influence of the above multiple functions, through the innovative design of self-repairing contact, intelligent sensing feedback, and self-repairing structure between the secondary roller needle and the secondary contact ring, the technical bottleneck of wear self-repair of the rotary transmission mechanism without relying on manual labor during maintenance is achieved. Breakthroughs are made in the three dimensions of zero disassembly and maintenance, ultra-long life, and high-precision transmission. The rotary transmission mechanism is applicable to fields with high precision and strict requirements for transmission continuity and life. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the roller needle movement rotary transmission mechanism of the present invention.

[0018] Figure 2 It is a schematic diagram of the front view of the vertical section of the roller needle movement rotary transmission mechanism of the present invention.

[0019] Figure 3 It is a schematic diagram of the truncated partial structure at the connection between the groove bar and the linkage column of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the roller needle movement rotary transmission mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the truncated partial cross-sectional structure at the connection between the groove bar and the linkage shaft of the present invention.

[0022] Figure 6 It is a schematic diagram of the partial front view at the connection between the linkage rod and the slide bar of the present invention.

[0023] Figure 7 It is a schematic diagram of the partial bottom view of the vertical section of the roller needle movement rotary transmission mechanism of the present invention.

[0024] Figure 8 For the present invention Figure 7 The enlarged structure diagram at position A.

[0025] Figure 9 It is a schematic diagram of the truncated partial structure at the connection between the sensing rod and the sensing end of the present invention.

[0026] The reference numerals are: 1, housing; 2, motor; 3, groove bar; 4, linkage column; 5, groove ring; 6, roller; 7, linkage bar; 8, main concave bar; 9, main needle roller; 10, secondary concave bar; 11, secondary needle roller; 12, positioning sleeve; 13, rotating shaft; 14, drive motor; 15, transmission end; 16, limit ring; 17, linkage shaft; 18, linkage rod; 19, sliding bar; 20, outer sleeve; 21, main contact ring; 22, secondary contact ring; 23, distance sensor; 24, controller; 25, contact roller; 26, shaft column; 27, support ring; 28, sensing rod; 29, sensing end; 30, pressure sensor. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1 - 8 shown, a needle roller movement and rotation transmission mechanism is provided with a self-repairing transmission component. The setting of the self-repairing transmission component realizes the technical bottleneck of self-repairing of the wear of the rotation transmission mechanism and does not rely on manual labor during maintenance. Breakthroughs have been achieved in the three dimensions of zero disassembly and maintenance, ultra-long life, and high-precision transmission. The rotation transmission mechanism is applicable to fields with high precision and strict requirements for transmission continuity and life. The specific structural settings of the self-repairing transmission component are as follows.

[0029] In this embodiment, as Figures 1 - 4 shown, the motor 2 is fixed on one side of the inner wall of the housing 1, the groove bar 3 is fixed on the output end of the motor 2, and the self-repairing transmission component is installed on the inner wall of the groove bar 3; the self-repairing transmission component includes a linkage column 4 slidably installed on the inner wall of the groove bar 3, and one end of the linkage column 4 is fixedly connected to a groove ring 5. A plurality of rollers 6 are slidably connected to the inner wall of the groove ring 5. One end of each roller 6 is fixedly connected to a linkage bar 7. A main concave bar 8 is fixedly installed on one side of the linkage bar 7, and a main needle roller 9 is rollingly connected to the inner wall of the main concave bar 8; a secondary concave bar 10 is provided on one side of the main concave bar 8, and a secondary needle roller 11 is rollingly connected to the inner wall of the secondary concave bar 10. The other side of the linkage bar 7 is slidably connected to a positioning sleeve 12, and a rotating shaft 13 is fixedly connected to the inner wall of the positioning sleeve 12. The plurality of rollers 6 are arranged in an equidistant circular array, the plurality of linkage bars 7 are arranged in an equidistant circular array, the secondary concave bar 10 is fixedly connected to the linkage bar 7, and both the main concave bar 8 and the secondary concave bar 10 are slidably connected to the positioning sleeve 12; the controller 24 is electrically connected to the motor 2.

[0030] In this embodiment, as Figures 1 - 4As shown, a driving motor 14 is fixedly connected to one end of a rotating shaft 13. The rotating shaft 13 is rotatably connected to the housing 1, and the driving motor 14 is fixedly connected to the housing 1. The other end of the rotating shaft 13 extends outside the housing 1 and is fixedly connected to a transmission end 15, so that the driving motor 14 can drive the rotating shaft 13 to rotate. The rotating shaft 13 can drive the positioning sleeve 12 to rotate, facilitating the stable rotational transmission of the positioning sleeve 12. Limit rings 16 are slidably connected to both sides of the groove bar 3. The limit rings 16 are fixedly connected to the linkage column 4. The two limit rings 16 are symmetrically arranged with respect to the groove bar 3. The vertical cross-sectional shape of the two limit rings 16 is circular, so that the linkage column 4 can drive the two limit rings 16 to move leftward, and the two limit rings 16 slide on the groove bar 3.

[0031] In this embodiment, as Figures 5 - 6 shown, a linkage shaft 17 is slidably connected to the inner wall of the groove bar 3 near its bottom end. One end of the linkage shaft 17 is fixedly installed with a linkage rod 18. One end of the linkage rod 18 is fixedly connected to a slide bar 19. An outer sleeve 20 is slidably sleeved on the outer wall of the slide bar 19, and the outer sleeve 20 is fixedly connected to the housing 1. The outer sleeve 20 is used to guide the movement of the slide bar 19. One side of the slide bar 19 is fixedly connected to a main contact ring 21, and a secondary contact ring 22 is provided on one side of the main contact ring 21. The secondary contact ring 22 is fixedly connected to the slide bar 19. The main contact ring 21 is in rolling connection with the main rolling needle 9. The outer wall of the linkage shaft 17 is a smooth surface, and the outer walls of the slide bar 19 and the inner wall of the outer sleeve 20 are both smooth surfaces. The vertical cross-sectional shapes of the secondary contact ring 22 and the main contact ring 21 are both circular, and both the secondary contact ring 22 and the main contact ring 21 are made of graphene material.

[0032] In this embodiment, as Figures 7 - 9 shown, a distance sensor 23 is installed on one side of the groove ring 5. The distance sensor 23 is used to sense the moving distance of the groove ring 5. The controller 24 is located on one side of the distance sensor 23, and the distance sensor 23 is electrically connected to the controller 24. The outer wall of the rotating shaft 13 is in rolling connection with a contact roller 25. Support rings 27 are provided on both sides of the contact roller 25. The inner wall of the contact roller 25 is connected to a shaft column 26. Both support rings 27 are fixedly connected to the shaft column 26, and both support rings 27 are rotatably connected to the contact roller 25.

[0033] One end of the shaft column 26 is fixedly connected to a sensing rod 28. A sensing end 29 is fixedly connected to the top of the sensing rod 28. A pressure sensor 30 is fixedly installed on the top of the sensing end 29. The pressure sensor 30 is fixedly connected to the housing 1. The two support rings 27 are symmetrically arranged with respect to the contact roller 25. The outer walls of the contact roller 25 and the rotating shaft 13 are both smooth surfaces. The center point of the contact roller 25 and the center point of the shaft column 26 are on the same horizontal line. The pressure sensor 30 is used to sense the extrusion force of the sensing end 29.

[0034] The working principle of the needle roller motion rotary transmission mechanism of the present invention is as follows:

[0035] Step 1: When the needle roller moves and rotates for transmission, the housing 1 is installed inside the mechanical equipment. The drive motor 14 drives the rotary shaft 13 to rotate. The rotary shaft 13 can drive the positioning sleeve 12 to rotate. The positioning sleeve 12 drives a plurality of linkage bars 7 to rotate. The linkage bars 7 cause the roller shaft 6 to rotate, and the roller shaft 6 rotates inside the groove ring 5. At the same time, the linkage bars 7 drive the main concave bar 8 to rotate, and the main concave bar 8 drives the main needle roller 9 to rotate on the inner wall of the main contact ring 21. At the same time, the rotary shaft 13 drives the transmission end 15 to rotate and transmit.

[0036] Step 2: During self-detection, please refer to the movement direction Figures 7 - 9 . As the main needle roller 9 and the main contact ring 21 are continuously in contact and worn, the worn size of the outer wall of the main needle roller 9 becomes smaller, while the worn size of the inner wall of the main contact ring 21 becomes larger. In this way, the gap between the main needle roller 9 and the main contact ring 21 becomes larger, resulting in a larger rotation fluctuation of the rotary shaft 13. The rotary shaft 13 drives the contact roller 25 to roll. The contact roller 25 will move upward under the action of the wave force of the rotary shaft 13. The contact roller 25 drives the shaft column 26 to move upward in a wave, and the two support rings 27 limit the rotation of the contact roller 25. At the same time, the shaft column 26 causes the sensing rod 28 to move upward in a wave, and the sensing rod 28 drives the sensing end 29 to move upward in a wave and squeeze. The sensing end 29 moves upward and squeezes on the pressure sensor 30. When the pressure value sensed by the pressure sensor 30 exceeds the pressure value set by the controller 24, the rotary shaft 13 has unstable movement, resulting in abnormal wear noise, and then the drive motor 14 is turned off.

[0037] Step 3: During self-repair, please refer to the movement direction Figures 2 - 4 . The controller 24 starts the motor 2. The motor 2 drives the groove bar 3 to rotate counterclockwise. The groove bar 3 drives the linkage column 4 to rotate counterclockwise. The linkage column 4 drives the groove ring 5 to move leftward. The groove ring 5 drives a plurality of roller shafts 6 to move leftward. The plurality of roller shafts 6 respectively drive a plurality of linkage bars 7 to move leftward. The linkage bars 7 drive the main concave bar 8 to move leftward. The main concave bar 8 drives the main needle roller 9 to move leftward. In this way, the main needle roller 9 no longer contacts the main contact ring 21. At the same time, the linkage bars 7 slide leftward along the outer wall of the positioning sleeve 12. The linkage bars 7 drive the secondary concave bar 10 to move leftward. The secondary concave bar 10 drives the secondary needle roller 11 to move leftward. The secondary needle roller 11 can automatically be located at the repair position of the main needle roller 9.

[0038] Step 4: During linkage self-repair, please refer to the movement direction Figure 5When the groove bar 3 rotates counterclockwise, the groove bar 3 will drive the linkage shaft 17 to move rightward. The linkage shaft 17 drives the linkage rod 18 to move rightward, and the linkage rod 18 causes the slide bar 19 to move rightward. The slide bar 19 drives the main contact ring 21 to move rightward, and the main contact ring 21 drives the auxiliary contact ring 22 to move rightward. Both the main contact ring 21 and the auxiliary contact ring 22 move rightward along the inner wall of the outer sleeve 20. The auxiliary contact ring 22 moves to a position where it contacts the auxiliary needle roller 11, so that the auxiliary needle roller 11 and the auxiliary contact ring 22 can perform self-repairing contact, and the damaged main needle roller 9 and the main contact ring 21 can be switched to the side position. When the groove ring 5 moves leftward, the distance between the groove ring 5 and the distance sensor 23 is sensed by the distance sensor 23. When the distance value of the movement of the groove ring 5 is the same as the distance value set by the controller 24, the motor 2 is turned off by the controller 24. Thus, the normal rotation drive function of the rotating shaft 13 is automatically restored.

[0039] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0040] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A needle roller motion rotation transmission mechanism, comprising a housing, a motor, a groove bar and a controller, characterized in that: The motor is fixed to one side of the inner wall of the housing, the groove is fixed to the output end of the motor, and the inner wall of the groove is installed with a self-repairing transmission component; The self-repairing transmission assembly includes a linkage column slidably mounted on the inner wall of the groove bar, and one end of the linkage column is fixedly connected to a groove ring, and the inner wall of the groove ring is slidably connected to multiple rollers, one end of each roller is fixedly connected to a linkage bar, a main concave bar is fixedly mounted on one side of the linkage bar, and a main roller is rollingly connected to the inner wall of the main concave bar; a secondary concave bar is provided on one side of the main concave bar, and a secondary roller is rollingly connected to the inner wall of the secondary concave bar, and a positioning sleeve is slidably connected to the other side of the linkage bar, and the inner wall of the positioning sleeve is fixedly connected to a rotating shaft, and a linkage shaft is slidably connected to the inner wall of the groove bar near its bottom end, and one end of the linkage shaft is fixedly mounted on a linkage rod; one end of the linkage rod is fixedly connected to a slide bar, and a sleeve is provided on the sliding sleeve of the outer wall of the slide bar, and the sleeve is fixedly connected to a shell body, and the sleeve is used to guide the slide bar to move, a main contact ring is fixedly connected to one side of the slide bar, and a secondary contact ring is provided on one side of the main contact ring, the secondary contact ring is fixedly connected to the slide bar, and the main contact ring and the main roller are rollingly connected.

2. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: The plurality of rollers are arranged in a circular ring with equal spacing, the plurality of linkage bars are arranged in a circular ring with equal spacing, the auxiliary concave bars are fixedly connected to the linkage bars, and the main concave bars and the auxiliary concave bars are both slidably connected to the positioning sleeve; The controller is electrically connected to the motor.

3. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: One end of the rotating shaft is fixedly connected to a driving motor, the rotating shaft is rotationally connected to the housing, and the driving motor is fixedly connected to the housing; The other end of the rotating shaft extends to the outside of the shell and is fixedly connected with a transmission end.

4. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: Both sides of the groove are slidably connected with limit rings, the limit rings are fixedly connected to the linkage column, the two limit rings are symmetrically arranged about the groove, and the vertical cross-section shape of the two limit rings is circular.

5. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: The outer wall of the linkage shaft is a smooth surface, and the outer wall of the slide bar and the inner wall of the outer sleeve are both smooth surfaces.

6. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: The vertical cross-section shapes of the auxiliary contact ring and the main contact ring are both circular, and the auxiliary contact ring and the main contact ring are both made of graphene material.

7. The needle roller motion rotation transmission mechanism according to claim 1, characterized in that: A distance sensor is installed on one side of the groove ring, and the distance sensor is used to sense the moving distance of the groove ring. The controller is located on one side of the distance sensor, and the distance sensor and the controller are electrically connected; The outer wall of the rotating shaft is rollingly connected with a contact roller, support rings are provided on both sides of the contact roller, the inner wall of the contact roller is connected with a shaft column, the two support rings are fixedly connected to the shaft column, and the two support rings are rotatably connected to the contact roller; A sensing rod is fixedly connected to one end of the shaft column, a sensing end is fixedly connected to the top of the sensing rod, a pressure sensor is fixedly installed on the top of the sensing end, and the pressure sensor is fixedly connected to the housing.

8. The needle roller motion rotation transmission mechanism according to claim 7, characterized in that: The two support rings are symmetrically arranged with respect to the contact roller, and the outer wall of the contact roller and the outer wall of the rotating shaft are both smooth surfaces.

9. The needle roller motion rotation transmission mechanism according to claim 7, characterized in that: The center point of the contact roller and the center point of the shaft column are on the same horizontal line, and the pressure sensor is used to sense the extrusion force of the sensing end.

Images