Cable armoring machine differential reducer and assembly method thereof

Abstract

The present invention discloses a cable armoring machine differential speed reducer and an assembly method thereof, which relates to the technical field of mechanical equipment, and comprises: an output shaft body, which comprises a first output shaft, a first output gear, a second output shaft and a second output gear arranged coaxially, the first output shaft is rotatably sleeved on the second output shaft, the first output gear is sleeved on the first output shaft, and the second output gear is sleeved on the second output shaft; a plurality of planetary gear bodies arranged along the circumference of the output shaft body, the planetary gear body comprises a first planetary gear, a second planetary gear and a planetary shaft arranged coaxially, the first planetary gear and the second planetary gear are sleeved on the planetary shaft along the axial direction of the planetary shaft, and the first planetary gear and the second planetary gear both rotate synchronously with the planetary shaft, the first planetary gear is meshed with the first output gear, and the second planetary gear is meshed with the second output gear. The use of the differential speed reducer can effectively reduce the volume of the cable armoring machine and reduce the cost of the cable armoring machine.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a differential reducer for a cable armoring machine and an assembly method thereof. Background Art

[0002] The cable armoring machine is used to wrap a layer of iron sheet on the outer surface of the cable. During the operation, both the cable and the iron sheet need to move at a certain speed, and the speeds required by the two are inconsistent. Therefore, the existing cable armoring machine generally has two sets of power components (motor + reducer) to drive the cable and the iron sheet to move respectively. This makes the cable armoring machine very large and costly.

[0003] Therefore, how to reduce the size of the cable armoring machine and reduce the cost of the cable armoring machine has become a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cable armoring machine differential reducer and an assembly method thereof, so as to reduce the size of the cable armoring machine and reduce the cost.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a cable armoring machine differential reducer, comprising: an output shaft body, the output shaft body comprising a first output shaft, a first output gear, a second output shaft and a second output gear which are coaxially arranged, the first output shaft is rotatably sleeved on the second output shaft, the first output gear is sleeved on the first output shaft and rotates synchronously with the first output shaft, the second output gear is sleeved on the second output shaft and rotates synchronously with the second output shaft; a plurality of planetary gear bodies arranged along the circumference of the output shaft body, the planetary gear body comprising a first planetary gear, a second planetary gear and a planetary shaft which are coaxially arranged, the first planetary gear and the second planetary gear are arranged along the axial direction of the planetary shaft The motor is connected to the housing in a transmission connection to drive the housing to rotate. The output shaft body and the planetary gear body are both arranged inside the housing. The first end and the second end of the planetary shaft are rotatably mounted on the first end and the second end of the housing respectively. The first end of the first output shaft is close to the first end of the housing and extends through the first end of the housing. The first end of the second output shaft is close to the second end of the housing and extends through the second end of the housing.

[0007] Preferably, the second end of the shell is provided with an opening and a rear cover plate for sealing the opening, the rear cover plate is detachably connected to the second end of the shell, and the second end of the planetary shaft is rotatably mounted on the rear cover plate.

[0008] Preferably, the cable armoring machine differential reducer also includes a first bearing and a second bearing, the first end of the shell is provided with a first opening, the rear cover is provided with a second opening, the first end of the first output shaft extends through the first opening, and the first output shaft is rotatably mounted in the first opening through the first bearing, the first end of the second output shaft extends through the second opening, and the second output shaft is rotatably mounted in the second opening through the second bearing.

[0009] Preferably, the cable armoring machine differential reducer also includes a front cover plate, a first oil seal and a second oil seal, the front cover plate is detachably arranged on the first end of the housing, the first end of the first output shaft sequentially passes through the first end of the housing and the front cover plate and extends out, a first limiting step is arranged on the first output shaft, the first end of the first bearing is against the first limiting step, the second end of the first bearing is against the front cover plate, a second limiting step is arranged in the second opening, a third limiting step is arranged on the second output shaft, the first end of the second bearing is against the second limiting step, the second end of the second bearing is against the third limiting step, the first oil seal is sleeved on the first output shaft, a front opening for accommodating the first oil seal is arranged on the front cover plate, the first oil seal is arranged in the front opening, the second oil seal is arranged on the second output shaft, a rear opening for accommodating the second oil seal is arranged on the rear cover plate, the second oil seal is arranged in the rear opening, and the second output gear, the second bearing and the second oil seal are arranged in sequence along the axial direction of the second output shaft.

[0010] Preferably, the cable armoring machine differential reducer also includes a first needle roller bearing, a second needle roller bearing, a third needle roller bearing and a fourth needle roller bearing. The first end of the planetary shaft is rotatably mounted on the first end of the housing through the first needle roller bearing, and the second end of the planetary shaft is rotatably mounted on the rear cover plate through the second needle roller bearing. The first output shaft is rotatably mounted on the second output shaft through the third needle roller bearing and the fourth needle roller bearing.

[0011] Preferably, the cable armoring machine differential reducer also includes a first thrust pad and a second thrust pad, the first thrust pad and the second thrust pad are both sleeved on the planetary shaft, and the first thrust pad is arranged between the first end of the housing and the first planetary gear, and the second thrust pad is arranged between the second planetary gear and the rear cover plate.

[0012] Preferably, the motor is transmission-connected to the housing via a toothed belt, and a plurality of externally protruding teeth for cooperating with the toothed belt are evenly arranged on the outer side wall of the housing in the circumferential direction.

[0013] The present invention also provides an assembly method for the differential reducer of the cable armoring machine, comprising the following steps: step one, fixing the first planetary gear of each planetary gear body on the corresponding planetary shaft, and installing the assembled first planetary gear and the planetary shaft in a housing; step two, opening side openings at positions of the housing corresponding to each planetary gear body, and rotatably fitting the second planetary gear on the corresponding planetary shaft through the corresponding side openings; step three, installing the first output shaft and the second output shaft, and after the first output shaft and the second output shaft are installed in place, fixing the housing stationary, and rotating the first output shaft and the second output shaft in the same direction respectively to eliminate the meshing clearance of the gear pair; step four, fixing the second planetary gear through the side opening; step five, disassembling the output shaft body and the planetary gear body, replacing the housing, and reassembling the output shaft body and the planetary gear body.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] The cable armoring machine differential reducer provided by the present invention comprises: an output shaft body, the output shaft body comprises a first output shaft, a first output gear, a second output shaft and a second output gear which are coaxially arranged, the first output shaft is rotatably sleeved on the second output shaft, the first output gear is sleeved on the first output shaft and rotates synchronously with the first output shaft, the second output gear is sleeved on the second output shaft and rotates synchronously with the second output shaft; a plurality of planetary gear bodies arranged along the circumference of the output shaft body, the planetary gear body comprises a first planetary gear, a second planetary gear and a planetary shaft which are coaxially arranged, the first planetary gear and the second planetary gear are arranged along the planetary The axis direction of the shaft is sleeved on the planetary shaft, and the first planetary gear and the second planetary gear both rotate synchronously with the planetary shaft, the first planetary gear meshes with the first output gear, and the second planetary gear meshes with the second output gear; the housing, the motor is connected to the housing to drive the housing to rotate, the output shaft body and the planetary gear body are both arranged inside the housing, and the first end and the second end of the planetary shaft are rotatably mounted on the first end and the second end of the housing respectively, the first end of the first output shaft is close to the first end of the housing and extends through the first end of the housing, and the first end of the second output shaft is close to the second end of the housing and extends through the second end of the housing. In the specific use process, the first output shaft and the second output shaft provide power for the cable and the iron sheet respectively. The cable armoring machine differential reducer has both differential and reduction functions. Compared with the use of two sets of motors and reducers, the use of the cable armoring machine differential reducer can effectively reduce the volume of the cable armoring machine and reduce the cost of the cable armoring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 An exploded view of a differential reducer for a cable armoring machine provided in an embodiment of the present invention;

[0018] Figure 2 A cross-sectional view of a differential speed reducer for a cable armoring machine provided in an embodiment of the present invention;

[0019] Figure 3 This is an appearance diagram of the differential reducer of the cable armoring machine provided in an embodiment of the present invention.

[0020] Explanation of the accompanying drawings: 1. first output shaft; 2. first output gear; 3. second output shaft; 4. second output gear; 5. first planetary gear; 6. second planetary gear; 7. planetary shaft; 8. rear cover plate; 9. first bearing; 10. second bearing; 11. front cover plate; 12. first oil seal; 13. second oil seal; 14. first needle bearing; 15. second needle bearing; 16. third needle bearing; 17. first thrust pad; 18. second thrust pad; 19. external convex tooth; 20. housing; 21. fourth needle bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The object of the present invention is to provide a cable armoring machine differential reducer and an assembly method thereof, which can reduce the volume of the cable armoring machine and reduce the cost of the cable armoring machine.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] refer to Figure 1-Figure 3The present embodiment provides a cable armoring machine differential reducer, including: an output shaft body, the output shaft body including a first output shaft 1, a first output gear 2, a second output shaft 3 and a second output gear 4 which are coaxially arranged, the first output shaft 1 is rotatably sleeved on the second output shaft 3, the first output gear 2 is sleeved on the first output shaft 1 and rotates synchronously with the first output shaft 1, the second output gear 4 is sleeved on the second output shaft 3 and rotates synchronously with the second output shaft 3; a plurality of planetary gear bodies arranged along the circumference of the output shaft body, the planetary gear body including a first planetary gear 5, a second planetary gear 6 and a planetary shaft 7 which are coaxially arranged, the first planetary gear 5 and the second planetary gear 6 are arranged along the axis of the planetary shaft 7 The motor is arranged on the planetary shaft 7, and the first planetary gear 5 and the second planetary gear 6 rotate synchronously with the planetary shaft 7, the first planetary gear 5 is meshed with the first output gear 2, and the second planetary gear 6 is meshed with the second output gear 4; the housing 20, the motor is connected with the housing 20 in a transmission manner to drive the housing 20 to rotate, the output shaft body and the planetary gear body are arranged inside the housing 20, and the first end and the second end of the planetary shaft 7 are rotatably mounted on the first end and the second end of the housing 20 respectively, the first end of the first output shaft 1 is close to the first end of the housing 20 and extends through the first end of the housing 20, and the first end of the second output shaft 3 is close to the second end of the housing 20 and extends through the second end of the housing 20. Compared with the use of two sets of motors and reducers, the use of the cable armoring machine differential reducer can effectively reduce the volume of the cable armoring machine and reduce the cost of the cable armoring machine.

[0025] In this embodiment, three planetary gear bodies are specifically provided, the first output shaft 1 and the first output gear 2 are integrally formed, and the second output shaft 3 and the second output shaft 4 are integrally formed.

[0026] In this embodiment, the second end of the housing 20 is provided with an opening and a rear cover plate 8 for blocking the opening, the rear cover plate 8 is detachably connected to the second end of the housing 20, and the second end of the planetary shaft 7 is rotatably mounted on the rear cover plate 8. During specific use, the rear cover plate 8 is disassembled, and the planetary gear body can be conveniently installed in the housing 20 from the opening.

[0027] In this embodiment, the cable armoring machine differential reducer also includes a first bearing 9 and a second bearing 10, the first end of the shell 20 is provided with a first opening, the rear cover plate 8 is provided with a second opening, the first end of the first output shaft 1 extends through the first opening, and the first output shaft 1 is rotatably installed in the first opening through the first bearing 9, the first end of the second output shaft 3 extends through the second opening, and the second output shaft 3 is rotatably installed in the second opening through the second bearing 10.

[0028] In this embodiment, if Figure 1-Figure 2As shown, the cable armoring machine differential reducer also includes a front cover plate 11, a first oil seal 12 and a second oil seal 13. The front cover plate 11 is detachably arranged at the first end of the housing 20. The first end of the first output shaft 1 sequentially passes through the first end of the housing 20 and the front cover plate 11 and extends out. A first limiting step is arranged on the first output shaft 1. The first end of the first bearing 9 abuts against the first limiting step. The second end of the first bearing 9 abuts against the front cover plate 11. A second limiting step is arranged in the second opening. A third limiting step is arranged on the second output shaft 3. The second bearing 10 The first end is against the second limiting step, the second end of the second bearing 10 is against the third limiting step, the first oil seal 12 is sleeved on the first output shaft 1, the front cover plate 11 is provided with a front opening for accommodating the first oil seal 12, the first oil seal 12 is arranged in the front opening, the second oil seal 13 is arranged on the second output shaft 3, the rear cover plate 8 is provided with a rear opening for accommodating the second oil seal 13, the second oil seal 13 is arranged in the rear opening, and the second output gear 4, the second bearing 10 and the second oil seal 13 are arranged in sequence along the axial direction of the second output shaft 3. The arrangement of the first oil seal 12 and the second oil seal 13 effectively improves the sealing performance of the device and effectively avoids oil leakage of the device.

[0029] In this embodiment, the cable armoring machine differential reducer also includes a first needle roller bearing 14, a second needle roller bearing 15, a third needle roller bearing 16 and a fourth needle roller bearing 21. The first end of the planetary shaft 7 is rotatably mounted on the first end of the housing 20 through the first needle roller bearing 14, the second end of the planetary shaft 7 is rotatably mounted on the rear cover plate 8 through the second needle roller bearing 15, and the first output shaft 1 is rotatably mounted on the second output shaft 3 through the third needle roller bearing 16 and the fourth needle roller bearing 21.

[0030] In this embodiment, in order to better position the first planetary gear 5 and the second planetary gear 6, as shown in FIG. Figure 1-Figure 2 As shown, the cable armoring machine differential reducer also includes a first thrust pad 17 and a second thrust pad 18. The first thrust pad 17 and the second thrust pad 18 are both sleeved on the planetary shaft 7, and the first thrust pad 17 is arranged between the first end of the housing 20 and the first planetary gear 5, and the second thrust pad 18 is arranged between the second planetary gear 6 and the rear cover plate 8.

[0031] In this embodiment, the motor is connected to the housing 20 through a toothed belt, and the outer wall of the housing 20 is evenly provided with a plurality of external protruding teeth 19 for matching with the toothed belt.

[0032] During the specific use of the cable armoring machine differential reducer provided in this embodiment, the motor drives the housing 20 through a toothed belt. The rotation of the housing 20 drives the first planetary gear 5 to revolve around the center of the first output shaft 1, and at the same time drives the second planetary gear 6 to revolve around the second output shaft 3. Because the first output shaft 1 and the second output shaft 3 are both connected to loads, the planetary gear body rotates while revolving. The first planetary gear 5 and the second planetary gear 6 respectively drive the first output shaft 1 and the second output shaft 3 meshing therewith to rotate. Because the two pairs of meshing gear pairs use different numbers of teeth to form different speed ratios, the rotational speeds of the first output shaft 1 and the second output shaft 3 will be lower than the rotational speed of the housing 20, resulting in a deceleration effect. At the same time, the first output shaft 1 and the second output shaft 3 will also produce different rotational speeds according to different settings of the number of teeth, thereby realizing the differential speed of the first output shaft 1 and the second output shaft 3.

[0033] The overall processing of the planetary gear body has extremely strict requirements on the relative position of the first planetary gear 5 and the second planetary gear 6. The slightest deviation will result in failure to assemble, or three planetary gears will be assembled, and the six gear meshing pairs cannot mesh at the same time. In order to avoid this situation, this embodiment also provides an assembly method for the differential reducer of the cable armoring machine, which includes the following steps:

[0034] Step 1: fix the first planetary gear 5 of each planetary gear body to the corresponding planetary shaft 7, and the two are specifically welded or integrally formed, and the assembled first planetary gear 5 and planetary shaft 7 are installed in the housing 20;

[0035] Step 2: Open side openings at positions of the housing 20 corresponding to the positions of the planetary gear bodies, and rotatably fit the second planetary gears 6 onto the corresponding planetary shafts 7 through the corresponding side openings;

[0036] Step 3, installing the first output shaft 1 and the second output shaft 3, and after the first output shaft 1 and the second output shaft 3 are installed in place, fixing the housing 20 and rotating the first output shaft 1 and the second output shaft 3 in the same direction to eliminate the meshing clearance of the gear pair;

[0037] Step 4: fix the second planetary gear 6 through the side opening, specifically, weld the first planetary gear 5 and the second planetary gear 6 together;

[0038] Step 5: disassemble the output shaft body and the planetary gear body, replace the housing 20, and then reassemble the output shaft body and the planetary gear body.

[0039] The assembly method of the cable armoring machine differential reducer adopts the method of destroying a shell 20 to achieve the precise positioning of the first planetary gear 5 and the second planetary gear 6, and then assembles the positioned first planetary gear 5 and the second planetary gear 6 into a new shell 20.

[0040] It should be noted that the differential reducer is not only suitable for cable armoring machines, but also for other devices that require two different sizes of power.

[0041] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cable armoring machine differential reducer, characterized in that: include: An output shaft body, the output shaft body comprising a first output shaft, a first output gear, a second output shaft and a second output gear which are coaxially arranged, the first output shaft is rotatably sleeved on the second output shaft, the first output gear is sleeved on the first output shaft and rotates synchronously with the first output shaft, and the second output gear is sleeved on the second output shaft and rotates synchronously with the second output shaft; a plurality of planetary gear bodies arranged along the circumference of the output shaft body, the planetary gear body comprising a first planetary gear, a second planetary gear and a planetary shaft arranged coaxially, the first planetary gear and the second planetary gear being sleeved on the planetary shaft along the axis direction of the planetary shaft, and the first planetary gear and the second planetary gear both rotating synchronously with the planetary shaft, the first planetary gear meshing with the first output gear, and the second planetary gear meshing with the second output gear; A housing, the motor is drivingly connected to the housing to drive the housing to rotate, the output shaft body and the planetary gear body are both arranged inside the housing, and the first end and the second end of the planetary shaft are rotatably mounted on the first end and the second end of the housing respectively, the first end of the first output shaft is close to the first end of the housing and extends through the first end of the housing, and the first end of the second output shaft is close to the second end of the housing and extends through the second end of the housing; The motor is connected to the housing through a toothed belt, and a plurality of external protruding teeth for matching with the toothed belt are evenly arranged on the outer wall of the housing in a circumferential direction. The motor drives the housing through the toothed belt, and the housing rotates to drive the first planetary gear to revolve around the center of the first output shaft, and at the same time drives the second planetary gear to revolve around the second output shaft, and the first planetary gear and the second planetary gear rotate while revolving, and the first planetary gear and the second planetary gear respectively drive the first output shaft and the second output shaft meshing therewith to rotate, and the two pairs of meshing gear pairs use different numbers of teeth to form different speed ratios; The second end of the shell is provided with an opening and a rear cover plate for sealing the opening. The rear cover plate is detachably connected to the second end of the shell, and the second end of the planetary shaft is rotatably mounted on the rear cover plate.

2. The cable armoring machine differential reducer according to claim 1, characterized in that: It also includes a first bearing and a second bearing, the first end of the shell is provided with a first opening, the rear cover is provided with a second opening, the first end of the first output shaft extends through the first opening, and the first output shaft is rotatably mounted in the first opening through the first bearing, the first end of the second output shaft extends through the second opening, and the second output shaft is rotatably mounted in the second opening through the second bearing.

3. The cable armoring machine differential reducer according to claim 2, characterized in that: The invention also includes a front cover plate, a first oil seal and a second oil seal. The front cover plate is detachably arranged on the first end of the housing. The first end of the first output shaft sequentially passes through the first end of the housing and the front cover plate and extends out. A first limiting step is arranged on the first output shaft. The first end of the first bearing abuts against the first limiting step. The second end of the first bearing abuts against the front cover plate. A second limiting step is arranged in the second opening. A third limiting step is arranged on the second output shaft. The first end of the second bearing abuts against the second limiting step. The second end of the second bearing abuts against the third limiting step. The first oil seal is sleeved on the first output shaft. A front opening for accommodating the first oil seal is arranged on the front cover plate. The first oil seal is arranged in the front opening. The second oil seal is arranged on the second output shaft. A rear opening for accommodating the second oil seal is arranged on the rear cover plate. The second oil seal is arranged in the rear opening. The second output gear, the second bearing and the second oil seal are arranged in sequence along the axial direction of the second output shaft.

4. The cable armoring machine differential reducer according to claim 1, characterized in that: It also includes a first needle roller bearing, a second needle roller bearing, a third needle roller bearing and a fourth needle roller bearing. The first end of the planetary shaft is rotatably mounted on the first end of the housing through the first needle roller bearing, the second end of the planetary shaft is rotatably mounted on the rear cover plate through the second needle roller bearing, and the first output shaft is rotatably sleeved on the second output shaft through the third needle roller bearing and the fourth needle roller bearing.

5. The cable armoring machine differential reducer according to claim 1, characterized in that: It also includes a first thrust pad and a second thrust pad, wherein the first thrust pad and the second thrust pad are both sleeved on the planetary shaft, and the first thrust pad is arranged between the first end of the housing and the first planetary gear, and the second thrust pad is arranged between the second planetary gear and the rear cover plate.

6. A method for assembling a differential reducer for a cable armoring machine according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: fix the first planetary gears of the plurality of planetary gear bodies to the corresponding planetary shafts, and install the assembled first planetary gears and the planetary shafts in a housing; Step 2: opening side openings at positions of the housing corresponding to the planetary gear bodies, and rotatably fitting the second planetary gears onto the corresponding planetary shafts through the corresponding side openings; Step 3, installing the first output shaft and the second output shaft, and after the first output shaft and the second output shaft are installed in place, fixing the housing and rotating the first output shaft and the second output shaft in the same direction to eliminate the meshing clearance of the gear pair; Step 4, fixing the second planetary gear through the side opening; Step five, disassemble the output shaft body and the planetary gear body, replace the housing, and then reassemble the output shaft body and the planetary gear body.

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