Feedback device of novel actuating mechanism

Abstract

The invention discloses a feedback device of a novel actuating mechanism, which relates to the technical field of valve feedback devices and comprises a mounting assembly and a shell. The feedback assembly comprises a base plate fixing frame which is arranged in the shell and fixedly connected with the valve element main shaft, a feedback base plate is installed above the base plate fixing frame, a feedback sleeve is arranged on the feedback base plate, a base plate connecting rod is arranged on the feedback sleeve, a feedback lantern ring is arranged outside the base plate connecting rod in a sleeving mode, an angular displacement sensor is arranged above the feedback lantern ring, and an angular displacement sensor is arranged above the angular displacement sensor. And the angular displacement sensor main shaft is in transmission connection with the feedback sleeve. The beneficial effects of the invention are that through cooperation of the feedback pointer, the probe, the angular displacement sensor and other components, monitoring of the opening and closing degree of the valve core is realized, and through longitudinal thickening operation of the feedback pointer and detachable installation of the head, the influence of axial shaking and radial shaking of the main shaft of the valve core on the feedback device is reduced to the greatest extent, and the reliability of the feedback device is improved. And correct transmission of feedback signals is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of valve feedback devices, and in particular to a feedback device of a novel actuator. Background Art

[0002] The main body of the hydraulically controlled butterfly valve at the outlet of the circulating water pump is below the ground level, and the humidity is maintained above 90% all year round. Due to the extremely high humidity in the equipment environment, the internal feedback device may malfunction due to corrosion, resulting in the feedback device being pushed out of the measuring position or damaged by impact due to the axial vibration or radial swing of the main shaft when the hydraulic valve is started or stopped. Once such a situation occurs, it will inevitably lead to abnormal start and stop of subsequent cycles, thereby posing a safety risk to the operating unit. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problem that the feedback device of the above-mentioned existing novel actuator is prone to failure when the main shaft is started or stopped, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a feedback device of a novel actuator, a mounting assembly, comprising a housing. The feedback assembly comprises a chassis fixing frame arranged inside the housing and fixedly connected to the valve core main shaft, a feedback chassis is installed above the chassis fixing frame, and a feedback sleeve is arranged on the feedback chassis, a chassis connecting rod is arranged on the feedback sleeve, a feedback collar is sleeved on the outside of the chassis connecting rod, an angular displacement sensor is arranged above the feedback collar, and the main shaft of the angular displacement sensor is drivingly connected to the feedback sleeve.

[0006] As a preferred solution of the feedback device of the new actuator described in the present invention, the feedback sleeve is provided with a fixing hole near the angular displacement sensor, the fixing hole is provided with a fixing screw for the angular displacement sensor, a feedback pointer is provided on the outside of the feedback ring, and the longitudinal thickness of the feedback pointer is higher than the height of the feedback ring, and a probe cooperating with the feedback pointer is provided at the edge of the shell.

[0007] As a preferred solution of the feedback device of the new actuator described in the present invention, a U-shaped plate is provided at the edge of the shell, and a rectangular plate connected to the probe is provided near the shell of the U-shaped plate, and connecting screws connected to the rectangular plate and the shell are provided on both sides of the U-shaped plate.

[0008] As a preferred solution of the feedback device of the novel actuator described in the present invention, the chassis connecting rod is sleeved inside the feedback sleeve and the feedback ring, and the feedback sleeve and the feedback ring are both provided with fasteners for fixing the chassis connecting rod.

[0009] As a preferred solution of the feedback device of the new actuator described in the present invention, the fastener includes a fastening screw threadedly installed on the outside of the feedback sleeve and the feedback ring, and one end of the fastening screw on the feedback sleeve and the feedback ring penetrates into the inner cavity of the feedback sleeve and the feedback ring, and contacts with the outside of the chassis connecting rod.

[0010] As a preferred solution of the feedback device of the novel actuator described in the present invention, a fastening nut is threadedly installed on the fastening screw and located on the outer side of the feedback sleeve and the feedback collar.

[0011] As a preferred solution of the feedback device of the novel actuator described in the present invention, wherein: a splicing screw hole connected to the valve core main shaft is provided at the inner ring of the chassis fixing frame.

[0012] As a preferred solution of the feedback device of the new actuator described in the present invention, the mounting assembly also includes a mounting plate arranged on the shell, and a mounting disc for mounting an angular displacement sensor is provided on the mounting plate, mounting square grooves are provided at both ends of the mounting plate, and a plurality of mounting holes corresponding to the mounting square grooves are provided at the edge of the shell, and a mounting screw rod 1 for fixing the mounting plate is provided at the position where the mounting hole and the mounting square groove are aligned, and a mounting nut is threadedly installed on the mounting screw rod 1 and is pressed against the mounting square groove.

[0013] As a preferred solution of the feedback device of the novel actuator of the present invention, wherein: the mounting disc is provided with a mounting arc groove, and the mounting arc groove is provided with a second mounting screw connected to the mounting plate.

[0014] The beneficial effects of the present invention are as follows: through the cooperation of components such as the feedback pointer, the probe and the angular displacement sensor, the opening and closing degree of the valve core is monitored. At the same time, by utilizing the longitudinal thickening operation of the feedback pointer and the detachable installation of the head, the influence of the axial and radial shaking of the valve core main shaft on the feedback device is reduced to the greatest extent, thereby ensuring the correct transmission of the feedback signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the split structure of the feedback component of the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0019] Figure 4 It is a schematic diagram of the mounting plate structure of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the U-shaped plate of the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example 1

[0026] Reference Figure 1 to Figure 5, which is the first embodiment of the present invention, provides a mounting assembly 100, including a housing 101. A feedback assembly 200, including a chassis fixing frame 201 arranged inside the housing 101 and fixed to the valve core main shaft, a feedback chassis 202 is installed above the chassis fixing frame 201, and a feedback sleeve 203 is provided on the feedback chassis 202, a chassis connecting rod 207 is provided on the feedback sleeve 203, a feedback collar 205 is sleeved on the outside of the chassis connecting rod 207, an angular displacement sensor 209 is provided above the feedback collar 205, and the main shaft of the angular displacement sensor 209 is in transmission connection with the feedback sleeve 203. The chassis fixing frame 201 is fixedly connected to the valve core main shaft, so it will rotate synchronously with the rotation of the valve core main shaft. Because the chassis fixing frame 201 is connected to the main shaft of the angular displacement sensor 209 through the feedback chassis 202, the feedback sleeve 203 and the chassis connecting rod 207, when the valve core main shaft rotates, the angular displacement sensor 209 will sense it and transmit the rotation signal.

[0027] A fixing hole 208 is provided at a position of the feedback sleeve 203 near the angular displacement sensor 209, and a fixing screw 210 for fixing the angular displacement sensor 209 is provided in the fixing hole 208. A feedback pointer 206 is provided on the outside of the feedback ring 205, and the longitudinal thickness of the feedback pointer 206 is higher than the height of the feedback ring 205. A probe 211 cooperating with the feedback pointer 206 is provided at the edge of the shell 101. Because the feedback ring 205 is arranged on the outside of the chassis connecting rod 207, when the chassis connecting rod 207 rotates synchronously with the valve core main shaft, it will drive the feedback pointer 206 arranged on the outside of the feedback ring 205 to rotate. At this time, the probe 211 arranged at the edge of the shell 101 will determine the opening and closing of the valve core through the rotation amplitude of the feedback pointer 206. However, in actual use, the valve core main shaft will produce axial shaking, causing the feedback pointer 206 to move upward and fall out of the detection range of the probe 211, so that the feedback device cannot provide the actual opening and closing data of the valve core main shaft, affecting the judgment of the staff. In this embodiment, the thickness of the feedback pointer 206 is thickened, so that under normal circumstances, the feedback pointer 206 will not leave the detection range of the probe 211, thereby ensuring the correct transmission of the feedback signal.

[0028] A U-shaped plate 212 is provided at the edge of the housing 101, and a rectangular plate 213 connected to the probe 211 is provided near the housing 101 of the U-shaped plate 212, and connecting screws 214 connected to the rectangular plate 213 and the housing 101 are provided on both sides of the U-shaped plate 212. The probe 211 is detachably mounted on the housing 101 through the cooperation of the U-shaped plate 212 and the rectangular plate 213. When the feedback pointer 206 shakes under the influence of the radial shaking of the valve core main shaft and affects the detection of the probe 211, the shaking law of the feedback pointer 206 can be used to set corresponding probes 211 at both ends of the feedback pointer 206 to ensure the normal detection work, and minimize the influence of the radial shaking of the valve core main shaft on the feedback device.

[0029] When in use, the opening and closing degree of the valve core is monitored through the cooperation of components such as the feedback pointer 206, the probe 211 and the angular displacement sensor 209. At the same time, the longitudinal thickening operation of the feedback pointer 206 and the detachable installation of the head are utilized to minimize the influence of the axial and radial shaking of the valve core main shaft on the feedback device, thereby ensuring the correct transmission of the feedback signal.

[0030] Example 2

[0031] Reference Figure 1 to Figure 5 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the chassis connecting rod 207 is sleeved inside the feedback sleeve 203 and the feedback collar 205, and the feedback sleeve 203 and the feedback collar 205 are both provided with fasteners 204 for fixing the chassis connecting rod 207. The provision of the fasteners 204 enables the chassis connecting rod 207 to be connected with the feedback sleeve 203 and the feedback collar 205, and accurately feedback the rotation of the valve core. This connection mode of multiple components can provide more stable structural support, reduce the risk of failure of a single component due to wear or corrosion, and at the same time, multiple components can more evenly distribute the load caused by the movement of the valve core, reduce stress concentration, and extend the service life of the feedback device.

[0032] The fastener 204 includes a fastening screw 204a threadedly mounted on the outside of the feedback sleeve 203 and the feedback collar 205, and one end of the fastening screw 204a on the feedback sleeve 203 and the feedback collar 205 penetrates into the inner cavity of the feedback sleeve 203 and the feedback collar 205, and contacts the outside of the chassis connecting rod 207. When fixing the chassis connecting rod 207 in the feedback sleeve 203 or the feedback collar 205, it can be achieved by rotating the fastening screw 204a so that one end of the fastening screw 204a squeezes the chassis connecting rod 207. In addition, the depth of the chassis connecting rod 207 in the feedback sleeve 203 and the feedback collar 205 can be adjusted. After the position is determined, the chassis connecting rod 207 is fixed.

[0033] A fastening nut 204b is threadedly mounted on the fastening screw 204a and located on the outside of the feedback sleeve 203 and the feedback collar 205. Since the fastening screw 204a and the chassis connecting rod 207 are fixed by squeezing to increase the friction between each other, in actual application, the fastening screw 204a may be over-extended and damage the chassis connecting rod 207. In this embodiment, the fastening nut 204b is provided to control the travel distance of the fastening screw 204a to avoid excessive squeezing and damage to the chassis connecting rod 207, thereby increasing the protection of the chassis connecting rod 207 and extending its service life.

[0034] The inner circle of the chassis fixing frame 201 is provided with a splicing screw hole 215 connected to the valve core main shaft. The setting of the splicing screw hole 215 allows the chassis fixing frame 201 to be fixed to the valve core main shaft at the inner circle with the mounting bolts. This design improves the fit with the valve core main shaft, and when the valve core main shaft shakes radially, the opening and closing degree of the valve core can be fed back more accurately.

[0035] When in use, the connection between the chassis connecting rod 207 and the feedback sleeve 203 and the feedback ring 205 is achieved through the setting of the fastening screw 204a, and the travel distance of the fastening screw 204a is controlled by utilizing the setting of the fastening nut 204b to avoid excessive squeezing and damaging the chassis connecting rod 207, thereby increasing the protection of the chassis connecting rod 207.

[0036] The remaining structures are the same as those of Example 1.

[0037] Example 3

[0038] Reference Figure 1 to Figure 5 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: the mounting assembly 100 also includes a mounting plate 103 arranged on the housing 101, and a mounting disc 107 for mounting the angular displacement sensor 209 is arranged on the mounting plate 103, and mounting square grooves 104 are arranged at both ends of the mounting plate 103, and a plurality of mounting holes 102 corresponding to the mounting square grooves 104 are arranged at the edge of the housing 101, and a mounting screw rod 106 for fixing the mounting plate 103 is arranged at the position where the mounting holes 102 and the mounting square grooves 104 are aligned, and a mounting nut 105 that is mutually pressed against the mounting square grooves 104 is threadedly installed on the mounting screw rod 106. The arrangement of the mounting plate 103 and the mounting disc 107 enables the angular displacement sensor 209 to be fixedly connected to the housing 101, and will not shake due to the movement of the valve core, thereby improving the feedback accuracy of the feedback assembly 200. In addition, due to the different equipment specifications, the diameters of different housings 101 are also different, and the arrangement of the mounting square grooves 104 increases the applicable range of the mounting plate 103.

[0039] The mounting disc 107 is provided with a mounting arc groove 109, and the mounting arc groove 109 is provided with a mounting screw rod 108 connected to the mounting plate 103. Because the initial position of the switch signal of the angular displacement sensor 209 may have a certain deviation from the initial position indicated by the feedback pointer 206 during the actual installation process, and because it is fixedly installed together with the mounting disc 107, the installation position of the angular displacement sensor 209 can be adjusted by adjusting the position of the mounting screw rod 108 on the mounting arc groove 109, so as to ensure the accuracy of the feedback signal.

[0040] When in use, the angular displacement sensor 209 is fixedly connected to the housing 101 by the arrangement of the mounting plate 103 and the mounting disc 107 , and the installation rectangular groove 104 is used to increase the applicable range of the mounting plate 103 .

[0041] The remaining structure is the same as that of Example 2.

[0042] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0043] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0044] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A new feedback device for an actuator, characterized in that: include, A mounting assembly (100) comprising a housing (101); The feedback assembly (200) comprises a chassis fixing frame (201) arranged inside a housing (101) and fixedly connected to a valve core main shaft, a feedback chassis (202) being installed above the chassis fixing frame (201), a feedback sleeve (203) being provided on the feedback chassis (202), a chassis connecting rod (207) being provided on the feedback sleeve (203), a feedback collar (205) being sleeved on the outside of the chassis connecting rod (207), an angular displacement sensor (209) being provided above the feedback collar (205), and a main shaft of the angular displacement sensor (209) being transmission-connected to the feedback sleeve (203).

2. The feedback device of the novel actuator according to claim 1, characterized in that: The feedback sleeve (203) is provided with a fixing hole (208) at a position close to the angular displacement sensor (209), and a fixing screw (210) for fixing the angular displacement sensor (209) is provided in the fixing hole (208). A feedback pointer (206) is provided outside the feedback collar (205), and the longitudinal thickness of the feedback pointer (206) is higher than the height of the feedback collar (205). A probe (211) for matching with the feedback pointer (206) is provided at the edge of the housing (101).

3. The feedback device of the novel actuator as claimed in claim 2 is characterized in that: A U-shaped plate (212) is provided at the edge of the shell (101), and a rectangular plate (213) connected to the probe (211) is provided at a position of the U-shaped plate (212) close to the shell (101), and connecting screws (214) connected to the rectangular plate (213) and the shell (101) are respectively provided on both sides of the U-shaped plate (212).

4. The feedback device of the novel actuator as claimed in claim 3 is characterized in that: The chassis connecting rod (207) is sleeved inside the feedback sleeve (203) and the feedback collar (205), and both the feedback sleeve (203) and the feedback collar (205) are provided with fasteners (204) for fixing the chassis connecting rod (207).

5. The feedback device of the novel actuator as claimed in claim 4 is characterized in that: The fastener (204) includes a fastening screw (204a) threadedly mounted on the outside of the feedback sleeve (203) and the feedback ring (205), and one end of the fastening screw (204a) on the feedback sleeve (203) and the feedback ring (205) penetrates into the inner cavity of the feedback sleeve (203) and the feedback ring (205), and contacts with the outside of the chassis connecting rod (207).

6. The feedback device of the novel actuator as claimed in claim 5 is characterized in that: A fastening nut (204b) is threadedly mounted on the fastening screw (204a) and located on the outside of the feedback sleeve (203) and the feedback collar (205).

7. The feedback device of the novel actuator as claimed in claim 1 is characterized in that: The inner ring of the chassis fixing frame (201) is provided with a splicing screw hole (215) connected to the valve core main shaft.

8. The feedback device of the novel actuator as claimed in claim 7 is characterized in that: The mounting assembly (100) further comprises a mounting plate (103) arranged on the housing (101), and a mounting disc (107) for mounting the angular displacement sensor (209) is provided on the mounting plate (103).

9. The feedback device of the novel actuator as claimed in claim 8, characterized in that: Both ends of the mounting plate (103) are provided with mounting grooves (104); a plurality of mounting holes (102) corresponding to the mounting grooves (104) are provided at the edge of the housing (101); a mounting screw rod (106) for fixing the mounting plate (103) is provided at the position where the mounting holes (102) and the mounting grooves (104) are aligned; a mounting nut (105) is threadedly mounted on the mounting screw rod (106) and is pressed against the mounting grooves (104).

10. The feedback device of the novel actuator according to claim 9, characterized in that: The mounting disc (107) is provided with a mounting arc groove (109), and the mounting arc groove (109) is provided with a second mounting screw rod (108) connected to the mounting plate (103).

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