Mechanical gearbox valve position indicator

Abstract

The utility model provides a mechanical gearbox valve position indicator, which belongs to the technical field of indicators, and comprises a speed regulating assembly, an indicating assembly and an adjusting structure, the speed regulating assembly comprises a first gear shaft, a second gear shaft, a speed regulating gear shaft and a speed regulating gear, and a plurality of universal gears are arranged on the first gear shaft and the second gear shaft. The universal gear comprises a universal large gear part and a universal small gear part; the universal gear sets on the first gear shaft and the second gear shaft transmit back and forth to form a multi-stage transmission ratio, meanwhile, the adjusting structure is matched with the adjusting part so that the speed adjusting gear can be meshed with the universal large gear parts of different universal gears, various transmission ratios are obtained, the indicator can be adjusted according to different valves, and the operation is convenient. The valve position indicator has the advantages that universality and adaptability of the valve position indicator are improved, rotation synchronization of the indication assembly and the speed regulation gear shaft is guaranteed, accurate valve position indication is provided, and instant visual feedback is provided for operators.

Description

Technical Field

[0001] The utility model relates to the technical field of indicators, in particular to a mechanical gear box valve position indicator. Background Art

[0002] In traditional industrial facilities, valve control and monitoring are key links to ensure the normal operation of fluid transmission systems. In the early days, valve status monitoring mainly relied on on-site inspections by operators, which was not only inefficient but also posed a greater safety risk in large-scale or dangerous environments.

[0003] With the development of technology, a valve position indicator has been proposed, which is a device for displaying the switch status of the valve. It is often used in industrial pipeline systems to facilitate operators to identify the current position (open or closed) of the valve from a distance. Commonly used valve position indicators are mainly mechanical, which display the switch status of the valve through a handle or gear mechanism directly or indirectly connected to the valve, such as connecting to the gear box on the valve. However, at present, such valve position indicators cannot adjust the speed ratio to adapt to different application requirements, which limits their applicability in diverse industrial environments. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a mechanical gear box valve position indicator.

[0005] The technical solution adopted by the utility model is as follows: a mechanical gear box valve position indicator, including a housing and an input component, the input component is connected to the input end of the valve driver, and also includes:

[0006] A speed regulating assembly that forms a transmission with an input assembly, the speed regulating assembly includes a first gear shaft, a second gear shaft, a speed regulating gear shaft and a speed regulating gear, a plurality of universal gears are arranged on the first gear shaft and the second gear shaft at intervals along the axial direction, the universal gear includes a universal large gear portion and a universal small gear portion, the input assembly forms a transmission with the universal large gear portion of the first universal gear on the first gear shaft, the universal small gear portion of the first universal gear on the first gear shaft is meshed with the universal large gear portion of the first universal gear on the second gear shaft, the universal small gear portion of the first universal gear on the second gear shaft is meshed with the universal large gear portion of the second universal gear on the first gear shaft, and the universal gears on the first gear shaft and the second gear shaft are sequentially transmitted in this way, an adjusting portion is arranged on the speed regulating gear shaft along the axial direction, the speed regulating gear includes a speed regulating gear portion and a positioning sleeve portion, an adjusting structure matched with the adjusting portion is arranged on the positioning sleeve portion, and the two are matched to enable the speed regulating gear to mesh with the universal large gear portions of different universal gears;

[0007] An indication component is used to output a corresponding valve position indication corresponding to the rotation of the speed regulating gear shaft.

[0008] The input assembly includes an input gear coupling, the input gear coupling is rotatably disposed in the housing, and the input gear coupling includes a first gear portion.

[0009] It also includes a reversing gear shaft, a duplex gear shaft, an input gear shaft and a first-stage gear shaft, the reversing gear shaft includes a second gear portion, the duplex gear shaft includes a third gear portion and a fourth gear portion, the input gear shaft includes a fifth gear portion and a sixth gear portion, the first-stage gear shaft includes a first-stage large gear portion and a first-stage small gear portion, the first gear portion is meshed with the second gear portion, the second gear portion is meshed with the third gear portion, the fourth gear portion is meshed with the fifth gear portion, the sixth gear portion is meshed with the first-stage large gear portion, and the first-stage small gear portion is meshed with the universal large gear portion of the first universal gear on the first gear shaft.

[0010] The adjustment structure includes an installation channel arranged on the positioning sleeve and facing one side of the adjustment part. A positioning bead is arranged at one end of the installation channel facing the adjustment part. A compression spring is arranged between the positioning bead and the installation channel. Under the action of the compression spring, the positioning bead cooperates with the adjustment part to form positioning.

[0011] At least two adjusting parts are arranged on the speed regulating gear shaft.

[0012] The adjusting portion is a plurality of V-shaped grooves arranged at intervals.

[0013] A spring is sleeved between the first universal gear on the first gear shaft and the first universal gear on the second gear shaft and the housing.

[0014] The speed regulating gear shaft is provided with a speed regulating output gear, the indicating assembly comprises an indicating plate, an indicating member rotatably arranged relative to the indicating plate, and an indicating gear connected to the indicating member, and the indicating gear is meshed with the speed regulating output gear.

[0015] The indicator plate is provided with an open indicator plate and a closed indicator plate, and the indicator member is an indicator arrow.

[0016] The opening indicator plate includes a first arc groove and a first adjusting bolt arranged along the rotation track of the indicator member, and the closing indicator plate includes a second arc groove and a second adjusting bolt arranged along the rotation track of the indicator member.

[0017] The beneficial effects of the utility model are as follows: in the utility model, a multi-stage transmission ratio is formed by the universal gear set on the first gear shaft and the second gear shaft transmitting back and forth, and at the same time, the adjustment structure cooperates with the adjustment part so that the speed regulating gear can mesh with the universal large gear part of different universal gears, thereby obtaining a variety of transmission ratios, and the indicator can be adjusted according to different valves, thereby improving the versatility and adaptability of the valve position indicator, and the indicating component ensures synchronization with the rotation of the speed regulating gear shaft, provides accurate valve position indication, and provides instant visual feedback for the operator. In addition, the pure mechanical transmission and display work is adopted to reduce the interference of external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0019] Figure 1 It is a cross-sectional view of the utility model;

[0020] Figure 2 It is a partial schematic diagram of the utility model Figure 1 ;

[0021] Figure 3 It is a partial schematic diagram of the utility model Figure 2 ;

[0022] Figure 4 It is a partial schematic diagram of the utility model Figure 3 ;

[0023] Figure 5 It is a schematic diagram of the transmission structure in the utility model;

[0024] Figure 6 It is a schematic diagram indicating components in the utility model;

[0025] Figure 7 It is a schematic diagram of the indicator in the utility model applied to a gate valve;

[0026] Figure 8 It is a schematic diagram of the indicator in the utility model applied to an angular stroke valve;

[0027] Fig. 9 It is a schematic diagram of the indicator in the utility model being applied to a multi-stage reduction gearbox. DETAILED DESCRIPTION

[0028] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0029] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0032] like Figures 1 to 9 As shown, a mechanical gearbox valve position indicator can be applied to various valves and multi-stage reduction gearboxes. The mechanical valve position indicator is a valve switch operating position directly installed at the input end of the valve driver. When operating the valve, the valve working status and opening and closing position can be intuitively seen.

[0033] Specifically, the mechanical valve position indicator includes a housing 1 and an input component, wherein the input component is connected to the input end of the valve driver, and further includes: a speed regulating component that forms a transmission with the input component, wherein the speed regulating component includes a first gear shaft 2, a second gear shaft 3, a speed regulating gear shaft 4 and a speed regulating gear 5, wherein the first gear shaft 2 and the second gear shaft 3 are both provided with a plurality of universal gears 6 spaced apart along the axial direction, wherein the universal gear 6 includes a universal large gear portion 61 and a universal small gear portion 62, wherein the diameter of the universal large gear portion 61 is greater than the diameter of the universal small gear portion 62, wherein the input component forms a transmission with the universal large gear portion 61 of the first universal gear 6 on the first gear shaft 2, wherein the universal small gear portion 62 of the first universal gear 6 on the first gear shaft 2 is meshed with the universal large gear portion 61 of the first universal gear 6 on the second gear shaft 3, wherein the universal small gear portion 62 of the first universal gear 6 on the second gear shaft 3 is meshed with the universal large gear portion 61 of the second universal gear 6 on the first gear shaft 2, and subsequently the first The gear shaft 2 and the universal gear 6 on the second gear shaft 3 are sequentially transmitted in this way. The speed regulating gear shaft 4 is provided with an adjustment part 41 along the axial direction. The speed regulating gear 5 includes a speed regulating gear part 51 and a positioning sleeve part 52. The positioning sleeve part 52 is provided with an adjustment structure matched with the adjustment part 41, and the two are matched to enable the speed regulating gear 5 to mesh with the universal large gear part 61 of different universal gears 6; the indication component, the indication component is used to output the corresponding valve position indication corresponding to the rotation of the speed regulating gear shaft 4, and the universal gear set on the first gear shaft 2 and the second gear shaft 3 is transmitted back and forth to form a multi-stage transmission ratio. At the same time, the adjustment structure cooperates with the adjustment part so that the speed regulating gear 5 can mesh with the universal large gear part 61 of different universal gears 6 to obtain a variety of transmission ratios. The indicator can be adjusted according to different valves, which improves the versatility and adaptability of the valve position indicator. The indication component ensures synchronization with the rotation of the speed regulating gear shaft 4, provides accurate valve position indication, and provides instant visual feedback for the operator. In addition, pure mechanical transmission and display work are adopted to reduce the interference of external factors.

[0034] The input assembly includes an input gear coupling 7, which is rotatably arranged in the housing 1 through a bearing. The input gear coupling 7 includes a first gear part 71, and gears are arranged between the couplings for transmission, and the coupling itself is convenient for connection with the valve.

[0035] It also includes a reversing gear shaft 8, a double gear shaft 9, an input gear shaft 10 and a first-stage gear shaft 11, which can form a transmission system. The reversing gear shaft 8 includes a second gear portion 81, the double gear shaft 9 includes a third gear portion 91 and a fourth gear portion 92, the input gear shaft 10 includes a fifth gear portion 101 and a sixth gear portion 102, the first-stage gear shaft 11 includes a first-stage large gear portion 111 and a first-stage small gear portion 112, the first gear portion 71 is meshed with the second gear portion 81, the second gear portion 81 is meshed with the third gear portion 91, and the fourth gear portion 102 is meshed with the first gear portion 111. Part 92 is meshed with the fifth gear part 101, the sixth gear part 102 is meshed with the first-stage large gear part 111, and the first-stage small gear part 112 is meshed with the universal large gear part 61 of the first universal gear 6 on the first gear shaft 2; wherein, the reversing gear shaft 8 can be used to change the output direction of the valve position indicator to adapt to different installation and operation requirements; the double gear shaft 9 can be used to evenly distribute or adjust the torque transmitted to the subsequent gears; through the combination of different gear shafts and gear parts, the indicator can adapt to different movement and force transmission requirements, thereby improving the adaptability of the valve position indicator to different working conditions.

[0036] The adjustment structure includes an installation channel 12 disposed on the positioning sleeve 52 and facing the side of the adjustment part 41. A positioning bead 13 is disposed at one end of the installation channel 12 facing the adjustment part 41. A compression spring 14 is disposed between the positioning bead 13 and the installation channel 12. Under the action of the compression spring 14, the positioning bead 13 cooperates with the adjustment part 41 to form a positioning, achieving a precise positioning effect, and ensuring that the speed regulating gear 5 works stably at a predetermined position. Secondly, the positioning bead 13 is a rollable sphere, and the friction generated by contact with the adjustment part 41 is smaller than that of direct contact, which helps to reduce wear between components and extend service life.

[0037] Furthermore, at least two adjustment parts 41 are provided on the speed regulating gear shaft 4. For example, the speed regulating gear shaft 4 can be a square rod in the middle with round rods at both ends, and adjustment parts 41 are provided on two opposite sides of the square rod. This can improve the stability of the positioning of the speed regulating gear 5 after adjustment relative to the speed regulating gear shaft 4.

[0038] In this embodiment, the adjustment portion 41 is a plurality of V-shaped grooves 411 arranged at intervals. The speed regulating gear 5 can be pushed or pulled axially to cause the positioning bead 13 to retract and roll out of the current "V"-shaped groove and pop out to position at the next "V"-shaped groove position, thereby adjusting different speed ratios.

[0039] A spring 23 is provided between the first universal gear 6 on the first gear shaft 2 and the second gear shaft 3 and the housing 1, which can absorb the vibration generated by the operation of the gears, reduce the impact on the bearings and the housing, reduce noise, and extend the service life of the entire system. Secondly, especially in application scenarios with large load changes, the spring can provide a balancing force, making the transmission smoother and reducing the impact of load fluctuations on the gears.

[0040] The speed regulating gear shaft 4 is provided with a speed regulating output gear 42, and the indicating assembly includes an indicating plate 15, an indicating member 16 rotatably arranged relative to the indicating plate 15, and an indicating gear 17 connected to the indicating member 16, the indicating gear 17 is meshed with the speed regulating output gear 42, the speed regulating output gear 42, the speed regulating gear shaft 4 and the speed regulating gear 5 transmit the finally set speed ratio to the indicating gear 17, and the indicating member 16 is driven by the indicating gear 17 to rotate within a specified range to display the working status of the valve.

[0041] The indicator plate 15 is provided with an open indicator plate and a closed indicator plate, and the indicator member 16 is an indicator arrow, which can clearly display the switch state of the valve.

[0042] The opening indicator plate includes a first arc groove and a first adjusting bolt arranged along the rotation trajectory of the indicator member 16, and the closing indicator plate includes a second arc groove and a second adjusting bolt arranged along the rotation trajectory of the indicator member 16; wherein, when the valve is fully closed, loosening the first adjusting bolt can adjust the corresponding position of the marking line and the indicator member 16 along the circumferential direction, and when the valve is fully opened, loosening the second adjusting bolt can adjust the corresponding position of the marking line and the indicator member 16 along the circumferential direction.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A mechanical gearbox valve position indicator, comprising a housing (1) and an input assembly, wherein the input assembly is connected to an input end of a valve driver, and characterized in that: Also included are: A speed regulating assembly that forms a transmission with an input assembly, the speed regulating assembly comprising a first gear shaft (2), a second gear shaft (3), a speed regulating gear shaft (4) and a speed regulating gear (5), a plurality of universal gears (6) are arranged on the first gear shaft (2) and the second gear shaft (3) at intervals along the axial direction, the universal gear (6) comprising a universal large gear portion (61) and a universal small gear portion (62), the input assembly forms a transmission with the universal large gear portion (61) of the first universal gear (6) on the first gear shaft (2), the universal small gear portion (62) of the first universal gear (6) on the first gear shaft (2) and the universal large gear portion (61) of the first universal gear (6) on the second gear shaft (3) The universal small gear portion (62) of the first universal gear (6) on the second gear shaft (3) is meshed with the universal large gear portion (61) of the second universal gear (6) on the first gear shaft (2), and the universal gears (6) on the first gear shaft (2) and the second gear shaft (3) are sequentially transmitted in this way. The speed regulating gear shaft (4) is provided with an adjustment portion (41) along the axial direction. The speed regulating gear (5) includes a speed regulating gear portion (51) and a positioning sleeve portion (52). The positioning sleeve portion (52) is provided with an adjustment structure that matches the adjustment portion (41), and the two match to enable the speed regulating gear (5) to mesh with the universal large gear portion (61) of different universal gears (6); An indication component is used to output a corresponding valve position indication in response to the rotation of a speed regulating gear shaft (4).

2. A mechanical gearbox valve position indicator according to claim 1, characterized in that: The input assembly comprises an input gear coupling (7), the input gear coupling (7) is rotatably arranged in the housing (1), and the input gear coupling (7) comprises a first gear part (71).

3. A mechanical gearbox valve position indicator according to claim 2, characterized in that: The invention also comprises a reversing gear shaft (8), a duplex gear shaft (9), an input gear shaft (10) and a first-stage gear shaft (11); the reversing gear shaft (8) comprises a second gear portion (81); the duplex gear shaft (9) comprises a third gear portion (91) and a fourth gear portion (92); the input gear shaft (10) comprises a fifth gear portion (101) and a sixth gear portion (102); the first-stage gear shaft (11) comprises a first-stage large gear portion (111) and a The first gear portion (71) is meshed with the second gear portion (81), the second gear portion (81) is meshed with the third gear portion (91), the fourth gear portion (92) is meshed with the fifth gear portion (101), the sixth gear portion (102) is meshed with the first large gear portion (111), and the first small gear portion (112) is meshed with the universal large gear portion (61) of the first universal gear (6) on the first gear shaft (2).

4. A mechanical gearbox valve position indicator according to claim 1, characterized in that: The adjustment structure comprises a mounting channel (12) arranged on the positioning sleeve (52) and facing one side of the adjustment portion (41); a positioning bead (13) is arranged at one end of the mounting channel (12) facing the adjustment portion (41); a compression spring (14) is arranged between the positioning bead (13) and the mounting channel (12); under the action of the compression spring (14), the positioning bead (13) cooperates with the adjustment portion (41) to form a positioning.

5. A mechanical gearbox valve position indicator according to claim 4, characterized in that: At least two adjusting parts (41) are arranged on the speed regulating gear shaft (4).

6. A mechanical gearbox valve position indicator according to any one of claims 1 to 5, characterized in that: The adjusting portion (41) is a plurality of V-shaped grooves (411) arranged at intervals.

7. The mechanical gearbox valve position indicator according to claim 1, characterized in that: A spring (23) is sleeved between the first universal gear (6) on the first gear shaft (2) and the second gear shaft (3) and the housing (1).

8. The mechanical gearbox valve position indicator according to claim 1, characterized in that: The speed regulating gear shaft (4) is provided with a speed regulating output gear (42), the indicating assembly comprises an indicating disk (15), an indicating member (16) rotatably arranged relative to the indicating disk (15), and an indicating gear (17) connected to the indicating member (16), the indicating gear (17) being meshed with the speed regulating output gear (42).

9. A mechanical gearbox valve position indicator according to claim 8, characterized in that: The indicator plate (15) is provided with an open indicator plate and a closed indicator plate, and the indicator member (16) is an indicator arrow.

10. A mechanical gearbox valve position indicator according to claim 9, characterized in that: The opening indicator plate comprises a first arc groove and a first adjusting bolt arranged along the rotation track of the indicator member (16), and the closing indicator plate comprises a second arc groove and a second adjusting bolt arranged along the rotation track of the indicator member (16).

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