Output shaft independent gear shifting structure of one-input multi-output speed reducer and using method of output shaft independent gear shifting structure

Abstract

The invention discloses an output shaft independent gear shifting structure of a one-input multi-output speed reducer and a using method, the output shaft independent gear shifting structure comprises an input shaft, a plurality of gear shifting mechanisms and a plurality of output shafts, and the input shaft is in transmission connection with the plurality of output shafts through the plurality of gear shifting mechanisms; each gear shifting mechanism comprises a core shaft and a gear sleeve, one end of the core shaft is in sliding fit with one output shaft in the axial direction of the output shaft, the core shaft is in transmission connection with the output shaft, and the gear sleeve is connected to the core shaft; the gear shifting mechanism is operably located at a first position and a second position; when the gear shifting mechanism is located at the first position, the mandrel is in transmission connection with the input shaft through the gear sleeve, and transmission of the output shaft is achieved. And when the gear shifting mechanism is located at the second position, the mandrel is in transmission connection with the input shaft through the gear sleeve, and the output shaft is in a static state. According to the invention, one input shaft can independently control a plurality of output shafts through a plurality of gear shifting mechanisms, and the gear shifting mechanism is convenient to use and maintain, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of reducers, and in particular to an output shaft independent gear shifting structure of a one-input and multiple-output reducer and a use method thereof. Background Art

[0002] In the modern industrial field, reducers are important transmission components in mechanical equipment. Their function is to reduce input speed and increase torque. There are many transmission structures and they are widely used. Usually, when the production site is limited or in order to reduce production costs, one device is required to drive multiple production equipment at the same time. This requires the reducer to have multiple output shafts connected to the production equipment to enable multiple production equipment to work simultaneously or partially.

[0003] Therefore, it is essential to design a one-input and multiple-output reducer with an independent gear shifting structure for the output shaft. Summary of the invention

[0004] In view of the above problems existing in the existing reducers, the present invention aims to provide a one-input multiple-output reducer output shaft independent shifting structure and use method, which can realize that one input shaft can separately control multiple output shafts through multiple shifting mechanisms, and is easy to use and maintain, safe and reliable.

[0005] The specific technical solutions are as follows:

[0006] A one-input-multiple-output speed reducer output shaft independent shift structure, comprising: an input shaft, a plurality of shift mechanisms and a plurality of output shafts, wherein the input shaft is respectively connected to the plurality of output shafts through the plurality of shift mechanisms;

[0007] Each of the shift mechanisms comprises:

[0008] A core shaft and a gear sleeve, wherein one end of the core shaft is slidably matched with an output shaft along the axial direction of the output shaft, and the core shaft is drivingly connected with the output shaft, and the gear sleeve is connected to the core shaft;

[0009] The shift mechanism is operable to be in a first position and a second position;

[0010] When the shift mechanism is in the first position, the core shaft is connected to the input shaft through the gear sleeve to achieve transmission of the output shaft;

[0011] When the shift mechanism is in the second position, the core shaft is disengaged from the input shaft through the gear sleeve, and the output shaft is in a stationary state.

[0012] The above-mentioned one-input-multiple-output reducer output shaft independent shifting structure, wherein a transmission mechanism is provided between the input shaft and each of the gear sleeves, the transmission mechanism comprising: a first gear and a second gear, the first gear being mounted on the input shaft, the second gear being rotatably mounted on the output shaft, the first gear being meshed with the second gear;

[0013] When the shift mechanism is in the first position, the second gear is meshed with the gear sleeve.

[0014] The above-mentioned one-input and multiple-output reducer output shaft independent shifting structure, wherein the end face of the gear sleeve has a gear sleeve meshing portion, the end face of the second gear has a gear meshing portion, and the gear sleeve meshing portion meshes with the gear meshing portion.

[0015] The above-mentioned one-input multiple-output reducer output shaft independent shifting structure, wherein the outer periphery of the first gear has a first helical tooth portion, the outer periphery of the second gear has a second helical tooth portion, and the first helical tooth portion is meshed with the second helical tooth portion.

[0016] The above-mentioned one-input and multiple-output reducer output shaft independent shifting structure, wherein the core shaft has a core shaft hole in the radial direction, the gear sleeve has at least one gear sleeve hole in the radial direction, the core shaft hole and the gear sleeve hole are connected by a pin, the output shaft has at least one slide groove, the pin passes through the slide groove, and slides along the length direction of the slide groove.

[0017] The above-mentioned one-input and multiple-output reducer output shaft independent shift structure, wherein each of the shift mechanisms further includes: an operating rod, and the operating rod is connected to the other end of the core shaft through a ball bearing.

[0018] In the above-mentioned one-input-multiple-output speed reducer output shaft independent shifting structure, at least one key is provided between the gear sleeve and the output shaft.

[0019] The above-mentioned one-input and multiple-output reducer output shaft independent shifting structure, wherein an elastic seat is provided on the output shaft, an oil film bearing is provided between the second gear and the output shaft, a thrust bearing is abutted against the side wall of the second gear and the oil film bearing, and at least one elastic member is abutted against the elastic seat and the thrust bearing.

[0020] A method of use, including any one of the above-mentioned one-input multiple-output reducer output shaft independent shifting structures, the method of use comprising:

[0021] The core shaft is moved to drive the gear sleeve to mesh with the second gear, and the first gear, the second gear, the gear sleeve, and the output shaft are sequentially driven by the input shaft to realize the transmission of the output shaft;

[0022] The core shaft is moved to drive the gear sleeve to disengage from the second gear, and the input shaft drives the first gear and the second gear in sequence, so that the second gear is idle and the output shaft is in a stationary state.

[0023] Compared with the prior art, the above technical solution has the following positive effects:

[0024] The invention has a compact structure, small size, convenient operation, and high shifting efficiency; it is easy to assemble and adjust, and has a low manufacturing cost; more importantly, it can realize the working state of multiple devices under independent control, and it is easy to use and maintain, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of a one-input and multiple-output reducer of the present invention;

[0026] Figure 2 A one-input multi-output reducer according to the present invention Figure 1 Cross-sectional view in the MM direction;

[0027] Figure 3 A one-input multi-output reducer according to the present invention Figure 2 Sectional view along the NN direction;

[0028] Figure 4 It is a schematic diagram of a gear sleeve structure of an output shaft independent shifting structure of a one-input and multiple-output reducer of the present invention;

[0029] Figure 5 The invention provides a one-input multiple-output reducer output shaft independent gear shifting structure Figure 4 Sectional view in the AA direction;

[0030] Figure 6 It is a schematic diagram of the core shaft structure of a one-input-multiple-output reducer output shaft independent shifting structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the output shaft structure of a one-input-multiple-output reducer with an output shaft independent shifting structure according to the present invention;

[0032] Figure 8 It is a schematic diagram of the second gear structure of the output shaft independent shifting structure of a one-input and multiple-output speed reducer of the present invention;

[0033] Fig. 9 The invention provides a one-input multiple-output reducer output shaft independent gear shifting structure Figure 8 Cross-sectional view in the BB direction;

[0034] In the accompanying drawings: 1. input shaft; 2. shifting mechanism; 3. output shaft; 4. transmission mechanism; 6. housing; 21. spindle; 22. gear sleeve; 23. gear sleeve meshing portion; 24. spindle hole; 25. gear sleeve hole; 26. pin; 27. operating lever; 28. ball bearing; 31. blind hole; 32. slide groove; 33. key; 34. first keyway; 41. first gear; 42. second gear; 43. gear meshing portion; 44. first oblique tooth portion; 45. second oblique tooth portion; 51. elastic seat; 52. oil film bearing; 53. thrust bearing; 54. elastic member. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0036] like Figures 1 to 9 As shown, a preferred embodiment of a one-input-multiple-output reducer output shaft independent shift structure is shown, comprising: an input shaft 1, a plurality of shift mechanisms 2 and a plurality of output shafts 3, wherein the input shaft 1 is respectively connected to the plurality of output shafts 3 through the plurality of shift mechanisms 2;

[0037] Each shift mechanism 2 includes: a core shaft 21 and a gear sleeve 22 . One end of the core shaft 21 is slidably matched with an output shaft 3 along the axial direction of the output shaft 3 . The core shaft 21 is transmission-connected to the output shaft 3 , and the gear sleeve 22 is connected to the core shaft 21 .

[0038] Further, as a preferred embodiment, the shift mechanism 2 is operable to be in a first position and a second position;

[0039] When the shift mechanism 2 is in the first position, the core shaft 21 is connected to the input shaft 1 through the gear sleeve 22 to achieve the transmission of the output shaft 3;

[0040] When the shift mechanism 2 is in the second position, the core shaft 21 is disconnected from the input shaft 1 through the gear sleeve 22, and the output shaft 3 is in a stationary state.

[0041] First embodiment:

[0042] The input shaft 1 is drivingly connected to each gear sleeve 22 .

[0043] Second embodiment:

[0044] A transmission mechanism 4 is provided between the input shaft 1 and each gear sleeve 22 . The transmission mechanism 4 comprises a first gear 41 . The first gear 41 is mounted on the input shaft 1 .

[0045] Further, as a preferred embodiment, the transmission mechanism 4 further includes: a second gear 42 , the second gear 42 is rotatably mounted on the output shaft 3 , and the first gear 41 is meshed with the second gear 42 .

[0046] When the shift mechanism 2 is in the first position, the second gear 42 is meshed with the gear sleeve 22 .

[0047] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0048] The present invention also has the following implementation modes based on the above:

[0049] In further embodiments of the present invention, please continue to refer to Figures 1 to 9 As shown, the end surface of the gear sleeve 22 is provided with a gear sleeve meshing portion 23 , and the end surface of the second gear 42 is provided with a gear meshing portion 43 , and the gear sleeve meshing portion 23 meshes with the gear meshing portion 43 .

[0050] In a further embodiment of the present invention, the outer periphery of the first gear 41 has a first helical tooth portion 44, and the outer periphery of the second gear 42 has a second helical tooth portion 45, and the first helical tooth portion 44 meshes with the second helical tooth portion 45. The helical angles of the first helical tooth portion 44 and the second helical tooth portion 45 are 45 degrees.

[0051] In a further embodiment of the present invention, one end of the core shaft 21 has a core shaft hole 24 in the radial direction, the gear sleeve 22 has at least one gear sleeve hole 25 in the radial direction, the core shaft hole 24 and the gear sleeve hole 25 are connected by a pin 26, and the output shaft 3 has at least one slide groove 32, the pin 26 passes through the slide groove 32, and slides along the length direction of the slide groove 32.

[0052] Preferably, the pin 26 is a cotter pin.

[0053] One end of the output shaft 3 has a blind hole 31 , and one end of the core shaft 21 is slidably disposed in the blind hole 31 .

[0054] Preferably, the core shaft hole 24 radially passes through one end of the core shaft 21 , and the central axis of the core shaft hole 24 is perpendicular to the central axis of the core shaft 21 .

[0055] Slide grooves 32 are symmetrically provided on both sides of one end of the output shaft 3 , and gear sleeve holes 25 are symmetrically provided on both sides of the gear sleeve 22 . Each end of the pin 26 passes through the slide groove 32 and the gear sleeve hole 25 .

[0056] Preferably, the slide groove 32 is a U-shaped groove.

[0057] In a further embodiment of the present invention, each shift mechanism 2 further includes: an operating rod 27 , and the operating rod 27 is connected to the other end of the core shaft 21 through a ball bearing 28 .

[0058] In a further embodiment of the present invention, at least one key 33 is provided between the gear sleeve 22 and the output shaft 3 to facilitate the transmission between the gear sleeve 22 and the output shaft 3.

[0059] Preferably, two symmetrical keys 33 are provided between the gear sleeve 22 and the output shaft 3 .

[0060] Preferably, a first keyway 34 is provided on the inner wall of the gear sleeve 22, and a second keyway is provided on the outer wall of the output shaft 3, and the first keyway 34 corresponds to the second keyway.

[0061] In a further embodiment of the present invention, an elastic seat 51 is provided on the output shaft 3, an oil film bearing 52 is provided between the second gear 42 and the output shaft 3, a thrust bearing 53 is abutted against the side walls of the second gear 42 and the oil film bearing 52, and at least one elastic member 54 is abutted against the elastic seat 51 and the thrust bearing 53.

[0062] Preferably, a plurality of elastic members 54 are provided between the elastic seat 51 and the thrust bearing 53 , and the plurality of elastic members 54 are distributed at equal intervals along the circumference of the output shaft 3 .

[0063] Preferably, the elastic member 54 is a spring.

[0064] The output shaft independent shifting structure of the one-input-multiple-output speed reducer also includes: a housing 6 , and both the input shaft 1 and the output shaft 3 penetrate the housing 6 and are rotatably matched with the housing 6 .

[0065] A plurality of first gears 41 are distributed on the input shaft 1 along its axial direction.

[0066] The plurality of output shafts 3 correspond to the plurality of first gears 41 , respectively.

[0067] The central axes of the plurality of output shafts 3 are located on a first plane, and the central axis of the input shaft 1 is parallel to the first plane.

[0068] The distance between the central axis of the input shaft 1 and the first plane is a.

[0069] The central axis of the first gear 41 is perpendicular to the central axis of the second gear 42 .

[0070] The central axis of the output shaft 3 is not perpendicular to the central axis of the input shaft 1 .

[0071] The working principle of the present invention is described below:

[0072] like Figure 2 As shown, the operating lever is pulled to the right, the moving core shaft 21 drives the gear sleeve 22 to engage with the second gear 42, and the first gear 41, the second gear 42, the gear sleeve 22, and the output shaft 3 are sequentially driven through the input shaft 1 to realize the transmission of the output shaft 3;

[0073] like Figure 2 As shown, the operating lever is pulled to the left, the moving core shaft 21 drives the gear sleeve 22 to disengage from the second gear 42, and the input shaft 1 sequentially drives the first gear 41 and the second gear 42, so that the second gear 42 idles and the output shaft 3 is in a stationary state.

[0074] Each output shaft 3 can be switched by a shift mechanism 2, so that each output shaft 3 can be controlled individually.

[0075] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A one-input multiple-output reducer output shaft independent shifting structure, characterized in that: include: An input shaft, a plurality of shifting mechanisms and a plurality of output shafts, wherein the input shaft is drivingly connected to the plurality of output shafts through the plurality of shifting mechanisms respectively; Each of the shift mechanisms comprises: A core shaft and a gear sleeve, wherein one end of the core shaft is slidably matched with an output shaft along the axial direction of the output shaft, and the core shaft is drivingly connected with the output shaft, and the gear sleeve is connected to the core shaft; The shift mechanism is operable to be in a first position and a second position; When the shift mechanism is in the first position, the core shaft is connected to the input shaft through the gear sleeve to achieve transmission of the output shaft; When the shift mechanism is in the second position, the core shaft is disengaged from the input shaft through the gear sleeve, and the output shaft is in a stationary state.

2. According to claim 1, the output shaft independent shifting structure of the one-input and multiple-output reducer is characterized in that: A transmission mechanism is provided between the input shaft and each of the gear sleeves, the transmission mechanism comprising: a first gear and a second gear, the first gear being mounted on the input shaft, the second gear being rotatably mounted on the output shaft, the first gear being meshed with the second gear; When the shift mechanism is in the first position, the second gear is meshed with the gear sleeve.

3. According to claim 2, the output shaft independent shift structure of the one-input and multiple-output reducer is characterized in that: The end surface of the gear sleeve is provided with a gear sleeve meshing portion, and the end surface of the second gear is provided with a gear meshing portion, and the gear sleeve meshing portion meshes with the gear meshing portion.

4. According to claim 1, the output shaft independent shift structure of the one-input and multiple-output reducer is characterized in that: The core shaft has a core shaft hole in the radial direction, the gear sleeve has at least one gear sleeve hole in the radial direction, the core shaft hole and the gear sleeve hole are connected by a pin, the output shaft has at least one slide groove, the pin passes through the slide groove and slides along the length direction of the slide groove.

5. According to claim 1, the output shaft independent shifting structure of a one-input and multiple-output reducer is characterized in that: Each of the shift mechanisms further includes an operating rod, which is connected to the other end of the core shaft through a ball bearing.

6. The one-input-multiple-output reducer output shaft independent shifting structure according to claim 1 is characterized in that: At least one key is arranged between the gear sleeve and the output shaft.

7. The one-input-multiple-output reducer output shaft independent shifting structure according to claim 2 is characterized in that: An elastic seat is arranged on the output shaft, an oil film bearing is arranged between the second gear and the output shaft, a thrust bearing is abutted against the side wall of the second gear and the oil film bearing, and at least one elastic member is abutted against the elastic seat and the thrust bearing.

8. The one-input-multiple-output reducer output shaft independent shifting structure according to claim 2 is characterized in that: The outer periphery of the first gear has a first helical tooth portion, the outer periphery of the second gear has a second helical tooth portion, the first helical tooth portion meshes with the second helical tooth portion; the helix angles of the first helical tooth portion and the second helical tooth portion are 45°.

9. A method for using a one-input-multiple-output reducer output shaft independent shifting structure, characterized in that: Using the one-input-multiple-output reducer output shaft independent shifting structure according to any one of claims 2 to 8, the method of using includes: The core shaft is moved to drive the gear sleeve to mesh with the second gear, and the first gear, the second gear, the gear sleeve, and the output shaft are sequentially driven by the input shaft to realize the transmission of the output shaft; The core shaft is moved to drive the gear sleeve to disengage from the second gear, and the input shaft sequentially drives the first gear and the second gear, so that the second gear is idle and the output shaft is in a stationary state.

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