One-to-two angular displacement conversion structure based on gear module

Abstract

The utility model discloses a one-to-two angular displacement conversion structure based on a gear module, which comprises a shell, and an input gear set and an output gear set which can move relatively are arranged on the left side and the right side in the shell. An intermediate gear set capable of axially moving parallel to the input gear set is arranged between the input gear set and the output gear set, and comprises a plurality of intermediate gears which are arranged along the axial direction of the input gear set and have different tooth numbers; the input gear set and the output gear set are respectively meshed and connected with the intermediate gear through relative movement; according to the utility model, double-path multi-proportion angular displacement output can be realized, and the flexibility and reliability of angular displacement detection are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of angular displacement output, and relates to a one-to-two angular displacement conversion structure based on a gear module. Background Art

[0002] An angular travel valve or angular travel mechanism is a functional mechanism that can rotate at a specific angle. In order to monitor its angular displacement parameters, an angular displacement sensor is usually set on its rotating mechanism, such as a transmission shaft, to detect the angular displacement. However, the existing angular travel valve or angular travel mechanism only has one angular displacement output feedback. If the angular displacement sensor is not easy to install, it is difficult to perform angular displacement detection. At the same time, once a single angular displacement sensor fails, the angular displacement detection will fail.

[0003] Therefore, in many practical use scenarios, in order to meet the installation requirements of narrow scenarios and improve the reliability of angular displacement detection, two-way angular displacement parameter output is usually required. The existing two-way angular displacement output mechanism has the defect that the ratio of the two-way angular displacement parameters is fixed and the ratio relationship of the two-way angular displacement parameters cannot be adjusted according to the accuracy requirements of different angular displacement sensors.

[0004] Therefore, in view of the above-mentioned defects existing in the prior art, the utility model discloses a one-to-two angular displacement conversion structure based on a gear module. Utility Model Content

[0005] The utility model aims to provide a one-to-two angular displacement conversion structure based on a gear module, which can realize dual-path multi-proportional angular displacement output.

[0006] The utility model is realized by the following technical solutions:

[0007] A one-to-two angular displacement conversion structure based on a gear module comprises a housing, wherein an input gear set and an output gear set capable of relative movement are arranged on the left and right sides of the interior of the housing, an intermediate gear set capable of axial movement parallel to the input gear set is arranged between the input gear set and the output gear set, the intermediate gear set comprises a plurality of intermediate gears with different numbers of teeth arranged along the axial direction of the input gear set, and the input gear set and the output gear set are respectively meshed and connected with the intermediate gears through relative movement.

[0008] A first set of angular displacement sensors is installed on the transmission shaft of the input gear set, and a second set of angular displacement sensors is installed on the transmission shaft of the output gear set, thereby realizing two-way angular displacement output and realizing redundant backup angular stroke detection. At the same time, in response to different angular displacement detection accuracy requirements, an intermediate gear set is provided between the input gear set and the output gear set. By adjusting the transmission ratio relationship between the input gear set, the intermediate gear set, and the output gear set, the proportional relationship between the rotational angular displacement of the transmission shaft of the input gear set and the rotational angular displacement of the transmission shaft of the output gear set is adjusted, thereby satisfying the dual-way multi-precision angular displacement detection. By axially moving the intermediate gear set, the intermediate gears with different numbers of teeth in the intermediate gear set are respectively meshed with the input gear set and the output gear set, thereby adjusting the transmission ratio. At the same time, by relatively sliding the input gear set and the output gear set in the horizontal direction, the input gear set and the output gear set are relatively close or relatively far away from each other, so that the input gear set and the output gear set can be paired and meshed with the intermediate gears with different numbers of teeth.

[0009] In order to better realize the present utility model, further, the intermediate gear set includes a first intermediate gear, a second intermediate gear, a third intermediate gear, and an intermediate transmission shaft. A mounting hole is provided in the middle of the housing. The intermediate transmission shaft is synchronously connected to the mounting hole in a circumferential rotational manner and in an axially sliding manner. The intermediate transmission shaft is sequentially axially sleeved with a first intermediate gear, a second intermediate gear, and a third intermediate gear. The number of teeth of the first intermediate gear is greater than the number of teeth of the second intermediate gear and greater than the number of teeth of the third intermediate gear.

[0010] In order to better realize the utility model, it further includes an axial feeding device, which is arranged on the outside of the shell, and the feeding end of the axial feeding device is connected to the transmission shaft of the intermediate transmission shaft, and the feeding end of the axial feeding device drives the intermediate transmission shaft to move axially along the input gear set.

[0011] In order to better realize the utility model, further, the axial feed device includes a feed mounting plate, a linear feed drive device, and a limit clamp ring. A connecting hole is provided on the feed mounting plate, and one end of the intermediate transmission shaft is rotatably connected to the connecting hole. Two limit clamp rings are mounted on the intermediate transmission shaft, and the two limit clamp rings are respectively located on both sides of the feed mounting plate; a linear feed drive device is provided between the side of the feed mounting plate close to the shell and the shell.

[0012] In order to better realize the utility model, further, the linear feed drive device includes any one of a linear drive cylinder, a linear drive oil cylinder, a linear push rod, and a linear screw drive device.

[0013] In order to better realize the utility model, further, horizontal slide grooves are respectively provided on the left and right sides of the shell, the transmission shaft of the input gear group is slidingly connected to the horizontal slide groove on the left, and the transmission shaft of the output gear group is slidingly connected to the horizontal slide groove on the right.

[0014] In order to better realize the utility model, further, it also includes a synchronous sliding drive device, which is arranged between the input gear group and the output gear group, and the synchronous sliding drive device includes a first driving end arranged corresponding to the input gear group and a second driving end arranged corresponding to the output gear group, the first driving end is connected to the transmission shaft of the input gear group, and the second driving end is connected to the transmission shaft of the output gear group, and the first driving end and the second driving end synchronously drive the transmission shaft of the input gear group and the transmission shaft of the output gear group to slide relative to each other along the horizontal slide groove.

[0015] In order to better realize the utility model, further, the synchronous sliding drive device includes a double-headed drive cylinder, an input connecting sleeve, and an output connecting sleeve. The left and right ends of the double-headed drive cylinder are respectively provided with a first push rod and a second push rod that can be retracted synchronously. The end of the first push rod is provided with an input connecting sleeve, and the end of the second push rod is provided with an output connecting sleeve; the input connecting sleeve is rotatably connected to the transmission shaft of the input gear set, and the output connecting sleeve is rotatably connected to the transmission shaft of the output gear set.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model provides an input gear set and an output gear set that can move horizontally relative to each other, and provides an intermediate gear set between the input gear set and the output gear set to achieve transmission meshing. At the same time, the intermediate gear set is moved axially to cooperate with the relative movement between the input gear set and the output gear set, so that the input gear set and the output gear set are respectively meshed with intermediate gears with different numbers of teeth to form a transmission chain with different transmission ratios, thereby achieving the output of two-way angular displacement of the input gear set and the output gear set. At the same time, different proportional outputs of different first-way angular displacements and second-way angular displacements are achieved by adjusting the transmission ratio, thereby meeting different accuracy requirements of different angular displacement sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the input gear set and the output gear set meshing and driving through the intermediate gear set;

[0020] Figure 3 is a schematic diagram of the structure of the intermediate gear set;

[0021] Figure 4 for Figure 1 A-direction view;

[0022] Figure 5 for Figure 1 BB section view.

[0023] Among them: 1-housing; 2-input gear set; 3-output gear set; 4-intermediate gear set; 5-axial feeding device; 6-synchronous sliding driving device; 31-first intermediate gear; 32-second intermediate gear; 33-third intermediate gear; 34-intermediate transmission shaft; 51-feed mounting plate; 52-linear feeding driving device; 53-limiting clamping ring; 61-double-head driving cylinder; 62-input connecting sleeve; 63-output connecting sleeve. DETAILED DESCRIPTION

[0024] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0027] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] Embodiment 1:

[0029] This embodiment is a one-to-two angular displacement conversion structure based on a gear module, such as Figure 1 As shown, it includes a housing 1, and an input gear set 2 and an output gear set 3 that can move relatively are arranged on the left and right sides of the interior of the housing 1. An intermediate gear set 4 that can move parallel to the axial direction of the input gear set 2 is arranged between the input gear set 2 and the output gear set 3. The intermediate gear set 4 includes a plurality of intermediate gears with different numbers of teeth arranged along the axial direction of the input gear set 2. The input gear set 2 and the output gear set 3 are respectively meshed and connected with the intermediate gears through relative movement.

[0030] Before switching to intermediate gears with different numbers of teeth, first drive the input gear set 2 and the output gear set 3 to slide relatively far apart in the horizontal direction, so that the input gear set 2 and the output gear set 3 are disengaged from the intermediate gear, and then drive the intermediate gear set 4 to move axially to drive the intermediate gears with different numbers of teeth into place, and then drive the input gear set 2 and the output gear set 3 to slide relatively close to each other in the horizontal direction, so that the input gear set 2 and the output gear set 3 are meshed with the intermediate gear.

[0031] A first set of angular displacement sensors is provided on the transmission shaft of the input gear set 2 to directly detect the rotational angular displacement of the input gear set 2 to form a first angular displacement output. A second set of angular displacement sensors is provided on the transmission shaft of the output gear set 3. The input gear set 2 drives the output gear set 3 to rotate through the intermediate gear set 4, and then indirectly outputs the second angular displacement of the input gear set 2 through the second set of angular displacement sensors, thereby realizing a dual-path backup angular displacement output to improve the reliability of angular displacement detection. By axially moving the intermediate gear set 4, the intermediate gears with different numbers of teeth are respectively meshed with the input gear set 2 and the output gear set 3 to form a transmission chain with different transmission ratios. The relationship between the first angular displacement and the second angular displacement can be solved according to the corresponding transmission ratio, thereby realizing the output of dual-path multi-precision angular displacement results to meet the requirements of different detection accuracies of different angular displacement sensors.

[0032] Embodiment 2:

[0033] The one-to-two angular displacement conversion structure based on the gear module of this embodiment is improved on the basis of embodiment 1, such as Figure 3 As shown, the intermediate gear set 4 includes a first intermediate gear 31, a second intermediate gear 32, a third intermediate gear 33, and an intermediate transmission shaft 34. A mounting hole is provided in the middle of the housing 1. The intermediate transmission shaft 34 is synchronously connected with the mounting hole in a circumferential rotational manner and an axially sliding manner. The first intermediate gear 31, the second intermediate gear 32, and the third intermediate gear 33 are sequentially sleeved on the intermediate transmission shaft 34 along the axial direction. The number of teeth of the first intermediate gear 31 is greater than the number of teeth of the second intermediate gear 32 and the number of teeth of the third intermediate gear 33.

[0034] like Figure 1 As shown, the input gear set 2 is connected to the output gear set 3 through the third intermediate gear 33, wherein the transmission ratio between the input gear set 2 and the third intermediate gear 33 is 2:3, i.e., the ratio between the number of teeth of the third intermediate gear 33 and the number of teeth of the input gear set 2. The transmission ratio between the third intermediate gear 33 and the output gear set 3 is 3:2, i.e., the ratio between the number of teeth of the output gear set 3 and the number of teeth of the third intermediate gear 33. By adjusting the number of teeth of the input gear set 2, the third intermediate gear 33, and the output gear set 3, the transmission ratio between the input gear set 2 and the output gear set 3 is adjusted in multiple stages, so that the first angular displacement output corresponds to the second angular displacement output in different ratios.

[0035] like Figure 2 As shown, the input gear set 2 is connected to the output gear set 3 through the second intermediate gear 32, and the number of teeth of the input gear set 2 = the number of teeth of the second intermediate gear 32 = the number of teeth of the output gear set 3. The transmission ratio between the input gear set 2 and the output gear set 3 is finally calculated to be 1:1, that is, the first angular displacement output corresponds to the second angular displacement output in a ratio of 1:1.

[0036] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0037] Embodiment 3:

[0038] The one-to-two angular displacement conversion structure based on the gear module of this embodiment is improved on the basis of embodiment 1 or 2, such as Figure 2 As shown, it also includes an axial feeding device 5, which is arranged outside the housing 1, and the feeding end of the axial feeding device 5 is connected to the transmission shaft of the intermediate transmission shaft 34, and the feeding end of the axial feeding device 5 drives the intermediate transmission shaft 34 to move axially along the input gear set 2.

[0039] The intermediate transmission shaft 34 is driven to axially feed through the axial feeding device 5, thereby driving the intermediate gears with different numbers of teeth to move between the input gear set 2 and the output gear set 3 for meshing transmission.

[0040] Furthermore, the axial feed device 5 includes a feed mounting plate 51, a linear feed drive device 52, and a limit clamp ring 53. The feed mounting plate 51 is provided with a connecting hole, and one end of the intermediate transmission shaft 34 is rotatably connected to the connecting hole. Two limit clamp rings 53 are mounted on the intermediate transmission shaft 34, and the two limit clamp rings 53 are respectively located on both sides of the feed mounting plate 51; a linear feed drive device 52 is provided between the side of the feed mounting plate 51 close to the shell 1 and the shell 1.

[0041] The feed mounting plate 51 is driven to move axially by the linear feed drive device 52, and the two limit collars 53 are used to limit the intermediate transmission shaft 34 to move axially synchronously with the axial feed of the feed mounting plate 51, while ensuring that the intermediate transmission shaft 34 can rotate circumferentially.

[0042] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0043] Embodiment 4:

[0044] The present embodiment is a one-to-two angular displacement conversion structure based on a gear module, which is improved on the basis of any one of embodiments 1-3, and the linear feed drive device 52 includes any one of a linear drive cylinder, a linear drive oil cylinder, a linear push rod, and a linear screw drive device.

[0045] like Figure 1 and Figure 2 As shown, the linear feed drive device 52 is configured as a linear drive cylinder, and the end of the cylinder rod of the linear drive cylinder is engaged with the adapter hole on the feed mounting plate 51 to drive the feed mounting plate 51 to feed synchronously.

[0046] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they will not be repeated here.

[0047] Embodiment 5:

[0048] The one-to-two angular displacement conversion structure based on the gear module of this embodiment is improved on the basis of any one of the embodiments 1-4, such as Figure 1 and Figure 4 As shown, horizontal slide grooves are respectively provided on the left and right sides of the housing 1, the transmission shaft of the input gear set 2 is slidably connected to the horizontal slide groove on the left, and the transmission shaft of the output gear set 3 is slidably connected to the horizontal slide groove on the right.

[0049] The horizontal slide groove is a horizontal waist-shaped groove with a width equal to the diameter of the transmission shaft of the input gear set 2 or equal to the diameter of the transmission shaft of the output gear set 3. The horizontal slide groove is connected to the transmission shaft of the input gear set 2 and the transmission shaft of the output gear set 3 through sliding fit, so that the input gear set 2 and the output gear set 3 can move relatively close to or relatively far away in the horizontal direction.

[0050] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0051] Embodiment 6:

[0052] The one-to-two angular displacement conversion structure based on the gear module of this embodiment is improved on the basis of any one of the embodiments 1-5, such as Figure 4 and Figure 5As shown, it also includes a synchronous sliding drive device 6, which is arranged between the input gear set 2 and the output gear set 3. The synchronous sliding drive device 6 includes a first driving end corresponding to the input gear set 2 and a second driving end corresponding to the output gear set 3. The first driving end is connected to the transmission shaft of the input gear set 2, and the second driving end is connected to the transmission shaft of the output gear set 3. The first driving end and the second driving end synchronously drive the transmission shaft of the input gear set 2 and the transmission shaft of the output gear set 3 to slide relative to each other along the horizontal slide groove.

[0053] Furthermore, the synchronous sliding drive device 6 includes a double-headed drive cylinder 61, an input connecting sleeve 62, and an output connecting sleeve 63. The left and right ends of the double-headed drive cylinder 61 are respectively provided with a first push rod and a second push rod that are synchronously retractable. The end of the first push rod is provided with an input connecting sleeve 62, and the end of the second push rod is provided with an output connecting sleeve 63; the input connecting sleeve 62 is rotatably connected to the transmission shaft of the input gear set 2, and the output connecting sleeve 63 is rotatably connected to the transmission shaft of the output gear set 3.

[0054] The input connecting sleeve 62 is sleeved on the outside of the transmission shaft of the input gear set 2, and the transmission shaft of the input gear set 2 is rotationally matched with the inner hole of the input connecting sleeve 62. A connecting arm is arranged on the outside of the input connecting sleeve 62, and the connecting arm is clamped with the end of the first push rod of the double-headed driving cylinder 61. The input connecting sleeve 62 is driven to move in the horizontal direction by the extension and contraction of the first push rod, thereby driving the transmission shaft of the input gear set 2 to slide along the horizontal slide groove. Similarly, the output connecting sleeve 63 is sleeved on the outside of the transmission shaft of the output gear set 3, and the transmission shaft of the output gear set 3 is rotationally matched with the inner hole of the output connecting sleeve 63. A connecting arm is arranged on the outside of the output connecting sleeve 63, and the connecting arm is clamped with the end of the second push rod of the double-headed driving cylinder 61. The output connecting sleeve 63 is driven to move in the horizontal direction by the extension and contraction of the second push rod, thereby driving the transmission shaft of the output gear set 3 to slide along the horizontal slide groove.

[0055] The other parts of this embodiment are the same as any one of Embodiments 1-5, so they are not described again.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A one-to-two angular displacement conversion structure based on a gear module, comprising a housing (1), characterized in that: An input gear set (2) and an output gear set (3) capable of relative movement are arranged on the left and right sides of the interior of the housing (1); an intermediate gear set (4) capable of axial movement parallel to the input gear set (2) is arranged between the input gear set (2) and the output gear set (3); the intermediate gear set (4) comprises a plurality of intermediate gears with different numbers of teeth arranged along the axial direction of the input gear set (2); the input gear set (2) and the output gear set (3) are respectively meshed and connected with the intermediate gears through relative movement.

2. The one-to-two angular displacement conversion structure based on a gear module according to claim 1 is characterized in that: The intermediate gear set (4) comprises a first intermediate gear (31), a second intermediate gear (32), a third intermediate gear (33), and an intermediate transmission shaft (34). A mounting hole is provided in the middle of the housing (1). The intermediate transmission shaft (34) is synchronously connected to the mounting hole in a circumferentially rotating manner and in an axially sliding manner. The intermediate transmission shaft (34) is sequentially sleeved with the first intermediate gear (31), the second intermediate gear (32), and the third intermediate gear (33) in the axial direction. The number of teeth of the first intermediate gear (31) is greater than the number of teeth of the second intermediate gear (32) and the number of teeth of the third intermediate gear (33).

3. The one-to-two angular displacement conversion structure based on a gear module according to claim 2 is characterized in that: It also includes an axial feeding device (5), which is arranged outside the housing (1), and a feeding end of the axial feeding device (5) is connected to the transmission shaft of the intermediate transmission shaft (34), and the feeding end of the axial feeding device (5) drives the intermediate transmission shaft (34) to move axially along the input gear set (2).

4. The one-to-two angular displacement conversion structure based on a gear module according to claim 3 is characterized in that: The axial feed device (5) comprises a feed mounting plate (51), a linear feed drive device (52), and a limit clamp ring (53); a connecting hole is provided on the feed mounting plate (51), one end of the intermediate transmission shaft (34) is rotatably connected to the connecting hole, two limit clamp rings (53) are sleeved on the intermediate transmission shaft (34), and the two limit clamp rings (53) are respectively located on two sides of the feed mounting plate (51); a linear feed drive device (52) is provided between the feed mounting plate (51) and the housing (1) on one side thereof close to the housing (1).

5. The one-to-two angular displacement conversion structure based on a gear module according to claim 4 is characterized in that: The linear feed drive device (52) comprises any one of a linear drive cylinder, a linear drive oil cylinder, a linear push rod, and a linear screw drive device.

6. A one-to-two angular displacement conversion structure based on a gear module according to any one of claims 1 to 5, characterized in that: Horizontal slide grooves are respectively provided on the left and right sides of the housing (1); the transmission shaft of the input gear set (2) is slidably connected to the horizontal slide groove on the left side; and the transmission shaft of the output gear set (3) is slidably connected to the horizontal slide groove on the right side.

7. The one-to-two angular displacement conversion structure based on a gear module according to claim 6 is characterized in that: The invention also comprises a synchronous sliding drive device (6), wherein the synchronous sliding drive device (6) is arranged between the input gear set (2) and the output gear set (3), and comprises a first driving end arranged corresponding to the input gear set (2) and a second driving end arranged corresponding to the output gear set (3), wherein the first driving end is connected to the transmission shaft of the input gear set (2), and the second driving end is connected to the transmission shaft of the output gear set (3), and the first driving end and the second driving end synchronously drive the transmission shaft of the input gear set (2) and the transmission shaft of the output gear set (3) to slide relative to each other along the horizontal slide groove.

8. The one-to-two angular displacement conversion structure based on a gear module according to claim 7 is characterized in that: The synchronous sliding drive device (6) comprises a double-headed drive cylinder (61), an input connecting sleeve (62), and an output connecting sleeve (63); the left and right ends of the double-headed drive cylinder (61) are respectively provided with a first push rod and a second push rod that are synchronously telescopic; the end of the first push rod is provided with an input connecting sleeve (62), and the end of the second push rod is provided with an output connecting sleeve (63); the input connecting sleeve (62) is rotatably connected to the transmission shaft of the input gear set (2), and the output connecting sleeve (63) is rotatably connected to the transmission shaft of the output gear set (3).

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