Novel rolling driving mechanism convenient to overhaul

Abstract

A novel rolling driving mechanism convenient to overhaul comprises a support, a driving device and a speed reduction device, the driving device and the speed reduction device are arranged on the support and are in transmission connection through a linkage shaft, and an execution piece in transmission connection with the speed reduction device is further arranged on the support. The support comprises two vertical plates which are oppositely arranged, and the driving device and the speed reduction device are located on the outer sides of the two vertical plates respectively. The driving device and the speed reducing device respectively comprise a motor and a speed reducer; the linkage shaft is positioned between the two vertical plates; two ends of the linkage shaft are respectively in transmission connection with the motor and the speed reducer; the execution part is a cylindrical roller / roller, is located between the two vertical plates and sleeves the outer ring of the linkage shaft, the two ends of the execution part are rotationally connected with the vertical plates, the end, close to the speed reducer, of the execution part is in transmission connection with the speed reducer, and the driving device and the speed reducer are arranged on the two sides of the support correspondingly; the arrangement difficulty and the occupied space of the driving device and the speed reduction device which are arranged on one side in a concentrated mode are reduced, and meanwhile the speed reduction device and the driving device are both located on the outer side of the support, so that independent repair and maintenance work of an execution piece or the driving device or the speed reduction device can be more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission devices, in particular to a novel rolling drive mechanism which is convenient for maintenance. Background Art

[0002] The rolling drive mechanism is usually composed of a motor, a reducer and a drum. The reducer can transmit the high-speed, low-torque power output by the motor to the drum after speed reduction and torque increase for rotation of the drum. The drum can be configured as a reel for lifting operations or a roller for supporting walking operations as needed. The application document with application number CN202323249453.1 previously applied by the applicant discloses a dual-brake lifting mechanism and a crane using the same, wherein the lifting mechanism for lifting operations includes a reel and a driving motor and a reducer at both ends thereof, wherein the reducer includes a main reducer and an auxiliary reducer located at both ends of the reel. This method of directly arranging the reducer inside the reel significantly saves the space occupied by the installation of the lifting mechanism, but the method of arranging the reducer inside the reel makes its disassembly and maintenance work more troublesome.

[0003] For example, the application document with application number CN202223349162.5 previously applied by the applicant discloses a traveling wheel and a traveling mechanism using the same. In order to save installation space, the deceleration part is also arranged inside the roller disc, and the disassembly and maintenance of the deceleration part is also more troublesome. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a new rolling drive mechanism which is convenient for maintenance.

[0005] The technical solution of this utility model is as follows:

[0006] A new rolling drive mechanism which is easy to maintain comprises a bracket and a driving device and a reduction device arranged thereon, wherein the driving device and the reduction device are connected via a linkage shaft transmission. The bracket is also provided with an actuator which is connected to the reduction device transmission. The actuator is a cylindrical roller / drum which can be driven to rotate through the cooperation of the driving device, the linkage shaft and the reduction device. When it is a roller, it can complete the supporting walking work, and when it is a drum, it can complete the winding work, and finally complete the lifting work.

[0007] As the core technical concept of the utility model, the bracket includes two vertical plates arranged opposite to each other, the driving device and the reduction device are respectively located on the outsides of the two vertical plates, the driving device includes a motor, the reduction device includes a reducer, the linkage shaft is located between the two vertical plates and the two ends are respectively connected to the motor and the reducer for transmission, the actuator is located between the two vertical plates and is sleeved on the outer ring of the linkage shaft, both ends of which are rotatably connected to the vertical plates, and the end close to the reducer is connected to the reducer for transmission, based on this structure, the driving device and the reduction device can be arranged on both sides of the bracket, and the transmission is carried out through the linkage shaft in the middle, which reduces the layout difficulty and occupied space of the driving device and the reduction device concentrated on one side, and at the same time, the reduction device and the driving device are both located on the outside of the bracket, so that the separate disassembly and maintenance of the actuator, the driving device or the reduction device can be more convenient.

[0008] The novel rolling drive mechanism which is easy to maintain as described above is a preferred embodiment. In order to ensure the deceleration and torque-increasing effect of the reducer and improve the accuracy of its reduction ratio and the stability of the reduction transmission, the reducer is a multi-stage planetary reducer.

[0009] Specifically speaking, the structure of the reducer includes a primary reducer and a secondary reducer, both reducers include a cylinder and a planetary carrier inside the cylinder, the inner ring of the cylinder is provided with reduction teeth, and the planetary carrier is circumferentially provided with a plurality of planetary wheels that match the reduction teeth, wherein the secondary reducer also includes a second end plate and a third end plate arranged at both ends of its cylinder, and is connected to the outer side of the vertical plate through the third end plate, one end of the primary reducer cylinder is fixed to the outer side of the second end plate, and the other end is provided with a first end plate, the reducer also includes a transmission shaft with one end extending from the outer side of the third end plate into the first reducer planetary carrier, and the other end extending to the outer side of the third end plate and connected to the linkage shaft, and the transmission shaft is located at the primary reducer The inner part of the planetary carrier of the speed reducer is provided with a first external tooth matching with the planetary gear of the primary speed reducer; the middle outer ring rotating sleeve of the transmission shaft is provided with an intermediate cylinder; one end of the intermediate cylinder is connected with the planetary carrier of the primary speed reducer, and the other end is located inside the planetary carrier of the secondary speed reducer, and the outer ring is provided with a second external tooth matching with the planetary gear of the secondary speed reducer; the end of the actuator close to the speed reducer is fixedly connected with the planetary carrier of the secondary speed reducer; based on the above structure, the power of the reduction device is received and output on the same side to ensure its use effect; the output power of the motor can be received through the transmission shaft, and under the action of the two speed reducer planetary carriers, the planetary carrier of the secondary speed reducer completes the power reduction output work.

[0010] In order to further ensure that the separate disassembly and maintenance of the actuator, the driving device or the reduction device can be carried out more conveniently, the two ends of the linkage shaft are detachably connected to the output shaft of the motor and the transmission shaft of the reduction gear respectively through connecting keys.

[0011] Specifically speaking, the structure of the connecting key includes two connecting cylinders arranged opposite to each other at one end, and the outer spirals at the opposite ends of the two connecting cylinders are provided with fastening cylinders, the end of the linkage shaft is inserted and clamped in one of the connecting cylinders, and the output shaft of the motor / the transmission shaft of the reducer is inserted and clamped in the other connecting cylinder.

[0012] As described above, a new type of rolling drive mechanism that is easy to maintain is used. In order to ensure that the rotation of the actuator can be more conveniently controlled and prevent the rotation inertia during use from affecting the use effect, the end of the transmission shaft away from the linkage shaft extends to the outside of the first end plate and is provided with a brake unit. Based on this structure, the brake unit can directly act on the low-torque transmission shaft to ensure the braking effect of the brake unit.

[0013] As described above, the novel rolling drive mechanism is easy to maintain. To ensure the service life of the motor, a heat dissipation unit is also provided on the side of the motor away from the vertical plate.

[0014] The beneficial effect of the utility model is that the utility model is a new rolling drive mechanism which is easy to maintain. The driving device and the reduction device can be arranged on both sides of the bracket, and the transmission is carried out through a linkage shaft in the middle, which reduces the difficulty and space occupied by arranging the driving device and the reduction device on one side. At the same time, the reduction device and the driving device are both located on the outside of the bracket, so that the separate disassembly and maintenance of the actuator, the driving device or the reduction device can be more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a structural schematic diagram of the rolling drive mechanism in the embodiment;

[0018] Figure 2 It is a structural schematic diagram of the reduction device in the embodiment;

[0019] The components represented by the reference numerals in the figure are:

[0020] 1. Vertical plate; 2. Driving device; 21. Motor; 3. Speed ​​reduction device; 31. Speed ​​reducer; 311. Primary speed reducer; 3111. First column; 3112. First end plate; 3113. First planetary gear; 3114. First planetary carrier; 312. Second speed reducer; 3121. Second column; 3122. Second end plate; 3123. Second planetary gear; 3124. Second planetary carrier; 3125. Third end plate; 313. Transmission shaft; 314. Connecting key; 315. Intermediate cylinder; 32. Braking unit; 4. Linkage shaft; 5. Actuator. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0022] Example

[0023] This embodiment provides a new rolling drive mechanism that is easy to repair. Figure 1 , including a bracket and a driving device 2 and a reduction device 3 arranged thereon, the driving device 2 and the reduction device 3 are connected by a linkage shaft 4, and the bracket is also provided with an actuator 5 connected to the reduction device 3 by transmission, and the actuator 5 is a cylindrical roller / drum, which can be driven to rotate through the cooperation of the driving device 2, the linkage shaft 4 and the reduction device 3, and when it is a roller, it can complete the support walking work, and when it is a drum, it can complete the winding work, and finally complete the lifting work, Figure 1 That is, a specific structural diagram of the rolling drive mechanism when the actuator 5 is a roller (the above-mentioned new type of rolling drive mechanism that is convenient for maintenance) is provided. Of course, the actuator 5 can also be a roller. Figure 1 The represented content does not limit the specific structure of the executive element 5 of this application. The structure of the rolling drive mechanism is described in detail below.

[0024] In this embodiment, combined with Figure 2 The bracket includes two vertical plates 1 arranged opposite to each other, the driving device 2 and the reduction device 3 are respectively located on the outsides of the two vertical plates 1, and a fixing plate is connected between the two vertical plates 1, and the relative positions of the two vertical plates 1 can be fixed by the fixing plate, thereby finally forming a stable supporting structure.

[0025] In this embodiment, combined with Figure 2 The driving device 2 includes a motor 21, a driving end of the motor 21 is fixed to the outer side of the vertical plate 1, and a first circular hole is opened in the middle of the vertical plate 1 corresponding to the position of the output shaft of the motor 21 for installing the motor 21, and the head end (output end) of the output shaft of the motor 21 is located in the first circular hole.

[0026] As a preferred implementation in this embodiment, in order to ensure the service life of the motor 21, a heat dissipation unit is also provided on the side of the motor 21 away from the vertical plate 1, and the tail end of the output shaft of the motor 21 extends out of the casing of the motor 21, and the heat dissipation unit is a cooling fan connected to the tail end of the output shaft of the motor 21.

[0027] In this embodiment, combined with Figure 2 The reduction gear 3 includes a reduction gear 31, which is arranged on the outer side of the vertical plate 1, and a second circular hole is opened in the middle of the vertical plate 1 corresponding to the position of the reduction gear 31 for installing the reduction gear 31. The linkage shaft 4 is located between the two vertical plates 1, and the two ends are respectively connected to the motor 21 and the reduction gear 31 in the first circular hole and the second circular hole. The actuator 5 is located between the two vertical plates 1 and is sleeved on the outer ring of the linkage shaft 4, and the two ends are respectively connected to the first circular hole and the second circular hole in the middle of the two vertical plates 1 for rotation, and the end close to the reduction gear 31 is connected to the reduction gear 31 for transmission. On the basis of the above structure, the driving device 2 and the reduction gear 3 can be arranged on both sides of the bracket, and the transmission is carried out in the middle through the linkage shaft 4, which reduces the layout difficulty and occupied space of the driving device 2 and the reduction gear 3 being concentrated on one side. At the same time, the reduction gear 3 and the driving device 2 are both located on the outside of the bracket, so that the separate disassembly and maintenance of the actuator 5, the driving device 2 or the reduction gear 3 can be more convenient.

[0028] Specifically speaking of the installation method of the actuator 5, a cylindrical adapter is coaxially provided at both ends of the actuator 5, an outer ring at one end of the adapter is fixed to the end of the actuator 5, and an outer ring at the other end is arranged in a circular hole through a bearing ring, and both ends of the linkage shaft 4 are respectively connected to the motor 21 and the reducer 31 in transmission inside the adapter at both ends of the actuator 5.

[0029] As a preferred implementation, in order to ensure the deceleration and torque-increasing effect of the reducer 31 and to improve the accuracy of its reduction ratio and the stability of the reduction transmission, the reducer 31 is a multi-stage planetary reducer 31 .

[0030] As for the structure of the reducer 31, it includes a primary reducer 311 and a secondary reducer 312. Both reducers include a cylinder and a planetary carrier inside the cylinder. The inner ring of the cylinder is provided with reduction teeth. The planetary carrier is circumferentially provided with a plurality of planetary gears that match the reduction teeth. The secondary reducer 312 also includes a second end plate 3122 and a third end plate 3125 provided at both ends of the cylinder, and is connected to the outer side of the vertical plate 1 through the third end plate 3125. One end of the cylinder of the primary reducer 311 is fixed to the outer side of the second end plate 3122, and the other end is provided with a first end plate 3112. The reducer 31 also includes a first end plate 3122 and a third end plate 3125 provided at one end of the cylinder. The outer side of the end plate 3125 extends into the interior of the planetary carrier of the first-stage reducer 311, and the other end extends to the outside of the third end plate 3125, and is connected to the transmission shaft 313 of the linkage shaft 4, and the part of the transmission shaft 313 located inside the planetary carrier of the first-stage reducer 311 is provided with a first external tooth that matches the planetary gear of the first-stage reducer 311, and the middle outer ring of the transmission shaft 313 is rotated with an intermediate cylinder 315, one end of the intermediate cylinder 315 is connected to the planetary carrier of the first-stage reducer 311, and the other end is located inside the planetary carrier of the second-stage reducer 312, and the outer ring is provided with a second external tooth that matches the planetary gear of the second-stage reducer 312.

[0031] Specifically, the cylinder, planetary gear and planetary carrier of the first-stage reducer 311 are respectively the first cylinder 3111, the first planetary gear 3113 and the first planetary carrier 3114; the cylinder, planetary gear and planetary carrier of the second-stage reducer 312 are respectively the second cylinder 3121, the second planetary gear 3123 and the second planetary carrier 3124. On the basis of the above structure, the transmission mode of the reducer 31 is: transmission shaft 313-first planetary gear 3113-first planetary carrier 3114-intermediate cylinder 315-second planetary gear 3123-second planetary carrier 3124-actuator 5. At the same time, the power reception and output of the reduction device 3 are carried out on the same side to ensure its use effect. The output power of the motor 21 can be received through the transmission shaft 313, and under the action of the two reducer planetary carriers, the power reduction output work is completed through the second planetary carrier 3124.

[0032] As a further preference, in order to ensure that the rotation of the actuator 5 can be more conveniently controlled and prevent the use effect from being affected by the rotational inertia during use, the end of the transmission shaft 313 away from the linkage shaft 4 extends to the outside of the first end plate 3112 and is provided with a brake unit 32. Based on this structure, the brake unit 32 can directly act on the low-torque transmission shaft 313 to ensure the braking effect of the brake unit 32.

[0033] In this embodiment, in order to further ensure that the separate disassembly and maintenance of the actuator 5, the driving device 2 or the reduction device 3 can be carried out more conveniently, the two ends of the linkage shaft 4 are detachably connected to the output shaft of the motor 21 and the transmission shaft 313 of the reducer 31 through connecting keys 314.

[0034] Specifically speaking, the structure of the connecting key 314 includes two connecting cylinders arranged opposite to each other at one end, and the outer spirals at the opposite ends of the two connecting cylinders are provided with fastening cylinders, the end of the linkage shaft 4 is inserted and clamped in one of the connecting cylinders, and the output shaft 313 of the motor 21 / reducer 31 is inserted and clamped in the other connecting cylinder.

Claims

1. A new rolling drive mechanism that is easy to maintain, characterized in that: It comprises a support and a driving device (2) and a reduction device (3) arranged thereon, wherein the driving device (2) and the reduction device (3) are transmission-connected via a linkage shaft (4), and the support is also provided with an actuator (5) transmission-connected to the reduction device (3); The support comprises two vertical plates (1) arranged opposite to each other, and the driving device (2) and the speed reduction device (3) are respectively located on the outer sides of the two vertical plates (1); The driving device (2) comprises a motor (21), the speed reduction device (3) comprises a speed reducer (31), and the linkage shaft (4) is located between the two vertical plates (1) and has two ends respectively in driving connection with the motor (21) and the speed reducer (31); The actuator (5) is a cylindrical roller / drum, which is located between the two vertical plates (1) and is sleeved on the outer ring of the linkage shaft (4). Both ends of the actuator (5) are rotationally connected to the vertical plates (1), and the end close to the reducer (31) is transmission-connected to the reducer (31).

2. A new rolling drive mechanism that is easy to maintain according to claim 1, characterized in that: The reducer (31) is a multi-stage planetary reducer (31).

3. A new rolling drive mechanism that is easy to maintain according to claim 2, characterized in that: The reducer (31) includes a primary reducer (311) and a secondary reducer (312); Both reducers include a cylinder and a planet carrier inside the cylinder, wherein the inner ring of the cylinder is provided with reduction gears, and the planet carrier is circumferentially provided with a plurality of planetary gears matching with the reduction gears; The secondary reducer (312) further comprises a second end plate (3122) and a third end plate (3125) arranged at both ends of its column, and is connected to the outer side of the vertical plate (1) via the third end plate (3125); one end of the column of the primary reducer (311) is fixed to the outer side of the second end plate (3122), and the other end is provided with a first end plate (3112); The reducer (31) further comprises a transmission shaft (313) having one end extending from the outside of the third end plate (3125) into the interior of the planetary frame of the primary reducer (311), and the other end extending out of the third end plate (3125) and connected to the linkage shaft (4), and a portion of the transmission shaft (313) located inside the planetary frame of the primary reducer (311) is provided with a first external tooth matching the planetary gear of the primary reducer (311); An intermediate cylinder (315) is rotatably sleeved on the middle outer ring of the transmission shaft (313); one end of the intermediate cylinder (315) is connected to the planetary frame of the primary reducer (311); the other end is located inside the planetary frame of the secondary reducer (312); and the outer ring is provided with second external teeth that match the planetary gear of the secondary reducer (312); One end of the actuator (5) close to the reducer (31) is fixedly connected to the planetary frame of the secondary reducer (312).

4. A new rolling drive mechanism that is easy to maintain according to claim 3, characterized in that: The two ends of the linkage shaft (4) are detachably connected to the output shaft of the motor (21) and the transmission shaft (313) of the reducer (31) respectively through connecting keys (314).

5. A new rolling drive mechanism that is easy to maintain according to claim 4, characterized in that: The connecting key (314) includes two connecting cylinders arranged opposite to each other at one end, and the outer circles of the opposite ends of the two connecting cylinders are spirally provided with fastening cylinders, the end of the linkage shaft (4) is inserted and clamped in one of the connecting cylinders, and the output shaft (313) of the motor (21) / reducer (31) is inserted and clamped in the other connecting cylinder.

6. A new rolling drive mechanism that is easy to maintain according to claim 3, characterized in that: One end of the transmission shaft (313) away from the linkage shaft (4) extends to the outside of the first end plate (3112) and is provided with a brake unit (32).

7. A new rolling drive mechanism that is easy to maintain according to claim 1, characterized in that: A heat dissipation unit is also provided on the side of the motor (21) away from the vertical plate (1).

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