Center-adjustable valve remote transmission adapter

Abstract

The invention discloses a center-adjustable valve remote transmission adapter, and relates to the technical field of valve remote transmission mechanisms, the center-adjustable valve remote transmission adapter comprises a fixed disc, a swing core shaft and a shifting fork, the swing core shaft is sleeved in the fixed disc, one end of the shifting fork is fixed with the swing core shaft, the other end of the shifting fork is movably connected with the fixed disc, and the shifting fork and the fixed disc can relatively move in the radial direction and the circumferential direction. And when the swinging mandrel rotates, the fixed disc is driven to rotate through the shifting fork. According to the center-adjustable valve remote transmission adapter, the problem of eccentricity caused by installation and the like is solved by additionally arranging the swing mandrel on an original common adapter, use of universal joints or couplers can be reduced, the use cost can be reduced, and the problems that a traditional remote transmission mechanism is narrow in installation adapter space, and installation deviation exists can be solved; the universal joint adjusting device has a universal joint adjusting function, can borrow the original use space, and is simple in structure, reliable and durable.

Description

Technical Field

[0001] The invention relates to the technical field of valve remote transmission mechanisms, and in particular to an adjustable valve remote transmission adapter. Background Art

[0002] The valve remote transmission adapter is a connecting piece that connects the transmission shaft of the valve remote transmission mechanism with the valve handwheel or valve stem. The valve remote transmission mechanism is commonly used in the shipbuilding industry, nuclear power industry and petrochemical industry. These working conditions usually have relatively small spaces and many valves and pipelines. During the installation of the remote transmission mechanism, the errors in the connection between the remote transmission mechanism and the valve are difficult to ensure concentric installation due to various factors, which may cause various problems such as abnormal operation noise, jamming, seizure, reduced transmission efficiency, and flexible shaft swing.

[0003] If there is enough space under this working condition, a universal joint or other coupling is usually added between the adapter and the remote transmission mechanism to adjust the eccentricity problem; however, adding a universal joint or other coupling will have an impact on the installation method, fixing method, connection method and cost of the remote transmission mechanism, and in some working conditions, the universal joint cannot be installed due to limited space or the eccentricity angle is greater than the adjustment angle of the universal joint.

[0004] Therefore, the present application designs an adjustable valve remote transmission adapter that can meet the usage requirements when the working space is small and the eccentricity angle is too large. It does not affect the original installation method, fixing method, and connection method, and has the least impact on the construction cost. Summary of the invention

[0005] In view of the above-mentioned shortcomings, the present invention provides an adjustable valve remote transmission adapter, which can solve the problems of narrow installation space and installation deviation of the traditional remote transmission mechanism adapter, meet the use requirements when the working space is narrow and the eccentricity angle is too large, has strong applicability, can reduce the use of universal joints or couplings, and reduce the cost of use. At the same time, it has a simple structure and is reliable and durable.

[0006] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0007] An adjustable heart valve remote transmission adapter comprises a fixed disk, a swinging core shaft and a shift fork. The swinging core shaft is sleeved in the fixed disk. One end of the shift fork is fixed to the swinging core shaft and the other end is movably connected to the fixed disk. The shift fork and the fixed disk can move relative to each other in radial and circumferential directions. When the swinging core shaft rotates, the fixed disk is driven to rotate through the shift fork.

[0008] According to one aspect of the present invention, the fixed plate is provided with a plurality of connection holes, the shift fork is movably connected in the connection holes, and the shift fork can be extended and retracted relative to the connection holes and can move along the length direction of the connection holes.

[0009] According to one aspect of the present invention, the fixed disk includes a main disk body and a matching disk body, which are fixed, the swing core shaft is sleeved in the matching disk body, and the connecting hole is opened on the matching disk body.

[0010] According to one aspect of the present invention, the connection holes are evenly spaced circumferentially on the mating disc body.

[0011] According to one aspect of the present invention, the main disc body is in the shape of a disc, and the matching disc body is in the shape of a hollow cylinder, and the two are vertically fixed.

[0012] According to one aspect of the present invention, the swing core shaft and the shift fork are both columnar, and the connecting hole is strip-shaped.

[0013] According to one aspect of the present invention, the fixed disk is fixed to the valve handwheel or valve stem, and the swing core shaft is fixed to the remote transmission shaft.

[0014] According to one aspect of the present invention, a plurality of fixing holes are regularly arranged on the fixing disk, and a connecting socket is arranged on the swinging core shaft.

[0015] According to one aspect of the present invention, the fixed plate is fixed to the valve handwheel or valve stem by bolts, the bolts are connected in cooperation with the fixing holes, the swing core shaft is fixed to the remote transmission shaft by pins, and the pins are connected in cooperation with the connecting sockets.

[0016] Advantages of the implementation of the present invention: when the valve handwheel or valve stem is not concentric with the remote transmission shaft, when the remote transmission mechanism is operated at this time, the remote transmission shaft will swing and transmit torque at the center of the adapter, that is, the swinging core shaft will not be at the center position of the fixed disk, and the rotational torque of the remote transmission shaft will be transmitted to the fixed disk through the fork connected to the swinging core shaft, and then transmitted to the valve handwheel or valve stem, finally realizing the opening or closing of the valve; in this way, the adapter can reduce the use of universal joints or couplings, reduce the cost of use, and can solve the problems of small space and installation deviation of the traditional remote transmission mechanism installation adapter; the adapter can not only have the universal joint adjustment function, but also borrow its original usage space, with a simple structure, reliable and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2It is a schematic diagram of the structure when the present invention is applied and installed.

[0020] The names corresponding to the serial numbers in the figure are as follows:

[0021] 1. Fixed plate; 11. Main plate body; 12. Matching plate body; 2. Swinging mandrel; 21. Connecting socket; 3. Shift fork; 4. Connecting hole; 5. Fixed hole; 6. Valve handwheel; 7. Remote transmission shaft; 8. Bolt; 9. Latch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 , Figure 2 As shown, an adjustable heart valve remote transmission adapter is used to cooperate with the remote transmission mechanism to realize the opening and closing of the valve; the adapter includes a fixed disk 1, a swinging core shaft 2, and a shift fork 3; wherein the fixed disk 1 is fixed to the valve handwheel 6 or the valve stem, and the swinging core shaft 2 is fixed to the remote transmission transmission shaft 7, and the fixing method is arbitrary. The fixed disk 1 includes a main disk body 11 and a matching disk body 12 that are fixed vertically as a whole, wherein the main disk body 11 is in the shape of a disk, and a plurality of fixing holes 5 are regularly arranged in the circumferential direction of the main disk body 11; the matching disk body 12 is in the shape of a hollow cylinder, and a plurality of connecting holes 4 are evenly spaced in the circumferential direction of the matching disk body 12, and the connecting holes 4 are in the shape of strip holes. The swinging core shaft 2 is sleeved in the matching disk body 12 of the fixed disk 1, and the outer diameter of the swinging core shaft 2 is smaller than the inner diameter of the matching disk body 12; the swinging core shaft 2 is in the shape of a column, and a connecting jack 21 is opened through the outer side of the swinging core shaft 2. There are a number of shift forks 3, one end of which is fixed to the outer contour of the swing mandrel 2 and the other end is inserted into the connecting hole 4; the shift fork 3 is columnar or rod-shaped; the shift fork 3 is movably connected to the connecting hole 4, and the shift fork 3 can be extended and retracted relative to the connecting hole 4 and can move along the length direction of the connecting hole 4, that is, the shift fork 3 or the swing mandrel 2 can move radially and deflect circumferentially relative to the fixed disk 1. When the remote transmission shaft 7 drives the swing mandrel 2 to rotate, the fixed disk 1 is driven to rotate through the shift fork 3, thereby driving the valve handwheel 6 or the valve stem to rotate, so as to realize the opening and closing of the valve.

[0024] In actual application, there are three connecting holes 4, which are opened on the circumferential contour of the matching disk body 12 at an interval of 120 degrees; the shift forks 3 are evenly fixed on the outer contour of the swing core shaft 2 at circumferential intervals, and there are three shift forks 3. The shift forks 3 and the connecting holes 4 are adapted in quantity and structural shape.

[0025] In practical applications, the fixed plate 1 is fixed to the valve hand wheel 6 or the valve stem by bolts 8, that is, the bolts 8 are connected with the fixing holes 5 to achieve fixation. The swing core shaft 2 is fixed to the remote transmission shaft 7 by latches 9, that is, the latches 9 are connected with the connecting sockets 21 to achieve fixation.

[0026] The working principle of the present invention is as follows:

[0027] When the valve handwheel 6 or the valve stem is not concentric with the remote transmission shaft 7, when the remote transmission mechanism is operated at this time, the remote transmission shaft 7 will swing and transmit torque at the center of the adapter, that is, the swing core shaft 2 will not be at the center position of the fixed disk 1, and the rotational torque of the remote transmission shaft 7 will be transmitted to the fixed disk 1 through the fork 3 connected to the swing core shaft 2, and then transmitted to the valve handwheel 6 or the valve stem, finally realizing the opening or closing of the valve.

[0028] Advantages of the present invention:

[0029] 1. It can reduce the use of universal joints or couplings and reduce the use cost; this adapter not only has the original adjustment function of the universal joint, but also can use its original use space, without affecting the original installation method, fixing method, connection method, and also has the least impact on the cost;

[0030] 2. This adapter does not require additional transmission components and can be used in a small space. It can solve the problems of small space and installation deviation of the traditional remote transmission mechanism adapter.

[0031] 3. Simple structure, reliable and durable.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An adjustable heart valve remote transmission adapter, characterized in that: The invention comprises a fixed disk (1), an oscillating core shaft (2) and a shift fork (3); the oscillating core shaft (2) is sleeved in the fixed disk (1); one end of the shift fork (3) is fixed to the oscillating core shaft (2) and the other end is movably connected to the fixed disk (1); the shift fork (3) and the fixed disk (1) can move relative to each other in radial and circumferential directions; when the oscillating core shaft (2) rotates, the fixed disk (1) is driven to rotate via the shift fork (3).

2. The adjustable center valve remote transmission adapter according to claim 1, characterized in that: The fixed plate (1) is provided with a plurality of connection holes (4), the shift fork (3) is movably connected in the connection hole (4), and the shift fork (3) can be extended and retracted relative to the connection hole (4) and can move along the length direction of the connection hole (4).

3. The adjustable center valve remote transmission adapter according to claim 2, characterized in that: The fixed disk (1) comprises a main disk body (11) and a matching disk body (12), which are fixed to each other. The swing core shaft (2) is sleeved in the matching disk body (12), and the connecting hole (4) is provided on the matching disk body (12).

4. The adjustable center valve remote transmission adapter according to claim 3, characterized in that: The connection holes (4) are evenly spaced circumferentially on the matching disc body (12).

5. The adjustable center valve remote transmission adapter according to claim 3, characterized in that: The main disc body (11) is in the shape of a disc, and the matching disc body (12) is in the shape of a hollow cylinder, and the two are fixed vertically.

6. The adjustable center valve remote transmission adapter according to claim 3, characterized in that: The swing core shaft (2) and the shift fork (3) are both columnar, and the connecting hole (4) is strip-shaped.

7. The adjustable center valve remote transmission adapter according to claim 1, characterized in that: The fixed disk (1) is fixed to a valve hand wheel (6) or a valve stem, and the swing core shaft (2) is fixed to a remote transmission shaft (7).

8. The adjustable center valve remote transmission adapter according to claim 7, characterized in that: The fixing plate (1) is provided with a plurality of fixing holes (5) at regular intervals, and the swinging core shaft (2) is provided with a connecting plug hole (21).

9. The adjustable center valve remote transmission adapter according to claim 8, characterized in that: The fixed plate (1) is fixed to the valve hand wheel (6) or the valve stem via a bolt (8), and the bolt (8) is connected in cooperation with the fixing hole (5). The swing core shaft (2) is fixed to the remote transmission shaft (7) via a latch (9), and the latch (9) is connected in cooperation with the connecting socket (21).

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