Portable driving device for hand wheel actuating mechanism

Abstract

The utility model relates to a portable driving device for a hand wheel actuating mechanism, which comprises a gear box, an electric drill in transmission connection with the input end of the gear box, and an adapter in transmission connection with the output end of the gear box, the rotating piece is configured to enable the hand wheel to rotate by pushing spokes of the hand wheel. The gearbox converts high-rotating-speed and low-torque power output by the electric drill into low-rotating-speed and high-torque power, the adapter transfers the low-rotating-speed and high-torque power output by the gearbox to the hand wheel through the rotating piece, and therefore the purpose of driving the hand wheel executing mechanism is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of driving devices, and particularly relates to a portable driving device for a handwheel actuator. Background Art

[0002] In the prior art, according to different driving methods, the actuators of valves can generally be divided into handwheel actuators, electric actuators, pneumatic actuators and hydraulic actuators. In order to still be able to control the valve when the electric, pneumatic or hydraulic actuator fails, the handwheel actuator is usually used as an emergency backup actuator for controlling the valve. Once the electric, pneumatic or hydraulic actuator fails, technicians can still control the valve to close or open mechanically through the handwheel actuator to avoid causing greater accidents.

[0003] For some handwheel actuators with long strokes such as screw-nut type structures and bevel gear structures, technicians need to rotate a large number of turns to open or close the valve. In this process, the workload of technicians is large, the physical strength consumption is large, and the time consumed is long. Summary of the Utility Model

[0004] Based on the above problems existing in the prior art, the utility model provides a portable driving device, which can drive the handwheel actuator conveniently and quickly.

[0005] The technical solution adopted by the utility model to solve its technical problems is: to provide a portable driving device for a handwheel actuator, including a gearbox, a drill electrically connected to the input end of the gearbox, and a fitting electrically connected to the output end of the gearbox.

[0006] Wherein, a rotating member perpendicular to the fitting is arranged on the fitting, and the rotating member is configured to be able to rotate the handwheel by pushing the spoke of the handwheel.

[0007] Further, the fitting is of a plate-like structure, and a plurality of through holes evenly surrounding the installation hole are formed in the fitting, and the plurality of through holes are configured to install the rotating member.

[0008] Further, the rotating member includes a flat head screw and a nut, and the flat head screw is configured to be able to be inserted into the through hole and screwed with the nut, so that the rotating member is fixed on the fitting.

[0009] Further, the plurality of through holes include a first through hole, a second through hole and a third through hole, and the diameter of the circle where the third through hole is located is larger than the diameters of the circles where the first through hole and the second through hole are located.

[0010] Further, the mounting holes are configured to enable circumferential limitation between the adapter and the output shaft of the gearbox.

[0011] Further, a flat thrust ball bearing is sleeved on the output shaft, and two ends of the flat thrust ball bearing respectively abut against the end face of the gearbox and the surface of the adapter.

[0012] Further, a screw is connected to the end of the output shaft, and a gasket for increasing the contact area between the screw and the adapter is arranged between the screw and the adapter.

[0013] Further, the structural strength of the rotating member is less than that of the adapter, so that the rotating member can be structurally damaged prior to the adapter.

[0014] Further, the driving device further includes an auxiliary handle mounted on the gearbox. One end of the auxiliary handle is for gripping, and the other end is for connecting to the gearbox and is provided with a hole for a transmission rod to pass through.

[0015] Further, the transmission rod includes a first transmission portion for circumferentially clamping with the output end of the electric drill, and a second transmission portion for circumferentially clamping with the input hole of the gearbox.

[0016] The beneficial effects of the present utility model are as follows: A portable driving device for a handwheel actuator provided by the present utility model includes a gearbox, an electric drill drivingly connected to the input end of the gearbox, and an adapter drivingly connected to the output end of the gearbox. Wherein, a rotating member perpendicular to the adapter and extending towards the handwheel is arranged on the adapter, and the rotating member is configured to be able to rotate the handwheel by pushing the spokes of the handwheel. The gearbox converts the power with high rotational speed and low torque output by the electric drill into power with low rotational speed and high torque. The adapter transfers the power with low rotational speed and high torque output by the gearbox to the handwheel through the rotating member, so as to achieve the purpose of driving the handwheel actuator. Since the structural strength of the rotating member is less than that of the adapter, once the torque required to rotate the handwheel is greater than the output torque of the driving device, the rotating member can be structurally damaged prior to the adapter, avoiding excessive loads on the gearbox and the electric drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 Shown is a structural schematic diagram of a portable driving device for a handwheel actuator and the handwheel actuator.

[0019] Figure 2 Shown as Figure 1Exploded view of the structure of a portable drive device for a handwheel actuator from a perspective.

[0020] Figure 3 The schematic structural diagram of the speed reduction box is shown.

[0021] Figure 4 The schematic structural diagram of the adapter is shown.

[0022] Among them, the reference numerals in the figure: 100, drive device; 10, electric drill; 11, sleeve;

[0023] 20, gearbox; 21, input hole; 211, keyway; 22, output shaft; 221, protrusion;

[0024] 30, transmission rod; 31, first transmission part; 32, second transmission part; 321, key;

[0025] 40, adapter; 41, mounting hole; 411, groove; 42, flat thrust ball bearing; 43, screw; 44, gasket; 45, rotating part; 451, flat head screw; 452, nut; 46, through hole; 461, first through hole; 462, second through hole; 463, third through hole; 47, weight reduction hole;

[0026] 50, auxiliary handle; 51, hole;

[0027] 60, handwheel actuator; 61, handwheel; 62, spoke. Detailed implementation manners

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic manner, so it only shows the components related to the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figure 1 and Figure 2As shown, a portable driving device 100 for a handwheel actuator provided by the utility model comprises a handheld electric drill 10, a gear box 20 connected to the electric drill 10, and an adapter 40 arranged on the gear box 20 and used to drive a handwheel 61 of a handwheel actuator 60. A transmission rod 30 is also arranged between the electric drill 10 and the gear box 20, and the transmission rod 30 can transmit the high-speed and low-torque power output by the electric drill 10 to the gear box 20. The gear box 20 converts the high-speed and low-torque power output by the electric drill 10 into low-speed and high-torque power, and the adapter 40 transfers the low-speed and high-torque power output by the gear box 20 to the handwheel 61, so as to achieve the purpose of driving the handwheel actuator 60.

[0030] Combination Figure 2 and Figure 3 As shown, in some embodiments, an input hole 21 for connecting the transmission rod 30 is provided at one end of the gearbox 20 close to the electric drill 10, and the inner wall of the input hole 21 can form a circumferential snap fit with the transmission rod 30, so as to transmit the high-speed and low-torque power output by the electric drill 10 to the gear set (not shown) in the gearbox 20. An output shaft 22 for connecting to the adapter 40 is provided at one end of the gearbox 20 close to the adapter 40. The low-speed and high-torque power converted by the gear set can be transmitted to the adapter 40 through the output shaft 22, thereby driving the handwheel 61 to rotate. The above-mentioned electric drill 10 and gearbox 20 are well known to those skilled in the art, and will not be described in detail here.

[0031] Combination Figure 2 As shown, in some embodiments, the transmission rod 30 includes a first transmission part 31 for connecting with the electric drill 10 and a second transmission part 32 for inserting into the input hole 21. The first transmission part 31 can form a circumferential snap fit with the output end of the electric drill 10, and the second transmission part 32 can form a circumferential snap fit with the inner wall of the input hole 21.

[0032] In some embodiments, the first transmission part 31 is a prismatic structure. The output end of the electric drill 10 is equipped with a sleeve 11 that can be sleeved with the first transmission part 31, and the inner wall of the sleeve 11 can abut against the circumferential side wall of the first transmission part 31, so as to form a circumferential clamping fit for transmitting power between the sleeve 11 and the first transmission part 31. In a specific embodiment, the first transmission part 31 is a hexagonal prism structure, and the sleeve 11 is a hexagonal sleeve 11 sleeved with the first transmission part 31.

[0033] In some of these embodiments, a key 321 protrudes from the side wall of the second transmission part 32. Correspondingly, a key groove 211 for receiving the key 321 is provided on the inner wall of the input hole 21. Through the snap-fit of the key 321 and the key groove 211, a circumferential snap-fit for power transmission is formed between the second transmission part 32 and the input hole 21. In a specific embodiment, the key 321 is a flat key and the key groove 211 is a corresponding flat key groove. In some other embodiments, the key 321 can also be a spline and the key groove 211 is a corresponding spline groove.

[0034] In some embodiments, the first transmission part 31 and the second transmission part 32 are integrally formed to ensure the structural strength of the transmission rod 30 and prevent the transmission rod 30 from being structurally damaged during the power transmission between the electric drill 10 and the gearbox 20.

[0035] Refer to Figure 4 As shown, in some embodiments, the adapter 40 is generally in a plate-like structure. An installation hole 41 for installing the output shaft 22 is provided at the center of the adapter 40. A plurality of rotating members 45 are perpendicularly provided on the side of the adapter 40 facing away from the gearbox 20. After the output shaft 22 transmits the power of low speed and high torque to the adapter 40, the adapter 40 drives the plurality of rotating members 45 to rotate around the axis of the output shaft 22. The plurality of rotating members 45 can abut against the side walls of the spokes 62 of the handwheel 61, thereby driving the handwheel 61 to rotate and further driving the handwheel actuator 60.

[0036] In some of these embodiments, a groove 411 is provided at the edge of the installation hole 41, and a protrusion 221 is provided on the side wall of the output shaft 22. The protrusion 221 can be received inside the groove 411, so that a circumferential limit is formed between the output shaft 22 and the adapter 40, thereby improving the power transmission efficiency between the output shaft 22 and the adapter 40 and reducing power loss.

[0037] Combined with Figure 1 and Figure 2 As shown, in some of these embodiments, a flat thrust ball bearing 42 sleeved on the output shaft 22 is provided on the side of the adapter 40 close to the gearbox 20. Both ends of the flat thrust ball bearing 42 abut against the end face of the gearbox 20 and the surface of the adapter 40 respectively. A screw 43 screwed onto the end of the output shaft 22 is provided on the side of the adapter 40 facing away from the gearbox 20. A gasket 44 for increasing the contact area between the screw 43 and the adapter 40 is further provided between the screw 43 and the adapter 40. The flat thrust ball bearing 42 and the screw 43 axially limit the adapter 40 to prevent the adapter 40 from sliding along the output shaft 22.

[0038] In some of these embodiments, the plurality of rotating members 45 can be installed on the adapter 40 by welding, bolting or screwing.

[0039] Combined with againFigure 2 As shown, in some of these embodiments, several rotating members 45 include flat head screws 451 respectively inserted into several through holes 46 of the adapter 40, and nuts 452 screwed onto the flat head screws 451. By clamping the nut 452 and the flat head screw 451, the rotating member 45 can be detachably connected to the adapter 40.

[0040] Refer again to Figure 4 As shown, the through holes 46 on the adapter 40 can be divided into a first through hole 461, a second through hole 462, and a third through hole 463 according to the number of spokes 62 of the handwheel 61 to be adapted. Three first through holes 461 are provided, and the central angle between the three first through holes 461 is 120°. Three rotating members 45 can be installed in the three first through holes 461 to adapt to the handwheel 61 with three spokes 62. Four second through holes 462 are provided, and the central angle between the four second through holes 462 is 90°. Four rotating members 45 can be installed in the four second through holes 462 to adapt to the handwheel 61 with four spokes 62. Five third through holes 463 are provided, and the central angle between the five third through holes 463 is 72°. Five rotating members 45 can be installed in the five third through holes 463 to adapt to the handwheel 61 with five spokes 62.

[0041] The distance between the through holes 46 is at least 8 cm to prevent the adapter 40 from being structurally damaged due to the too-close distance between the through holes 46 during the process of rotating the handwheel 61. In this embodiment, the centers of the three first through holes 461 and the four second through holes 462 are located on the same circumference, and one of the first through holes 461 coincides with one of the second through holes 462. The diameter of the circle where the five third through holes 463 are located is larger than the diameter of the circle where the three first through holes 461 are located.

[0042] In some preferred embodiments, the structural strength of the adapter 40 is higher than that of the rotating member 45. Once the torque required to rotate the handwheel 61 is greater than the output torque of the driving device 100, the rotating member 45 will undergo shear failure prior to the adapter 40. This can not only prevent the adapter 40 from being structurally damaged but also prevent the gearbox 20 and the electric drill 10 from bearing excessive loads. In this embodiment, the adapter 40 is made of aluminum alloy or stainless steel plate by laser cutting. The rotating member 45 includes a flat head screw 451 and a nut 452 made of PVC material.

[0043] In some of these embodiments, without affecting the structural strength of the adapter 40, a weight-reducing hole 47 is further provided on the adapter 40. The weight-reducing hole 47 can be circular, arc-shaped, or any other shape. By providing the weight reduction hole 47, the weight of the adapter 40 can be effectively reduced.

[0044] Refer again to Figure 1 and Figure 2As shown, in some embodiments, the driving device 100 further includes an auxiliary handle 50 with one end connected to the gearbox 20. Technicians can better control the driving device 100 by grasping the auxiliary handle 50, ensuring that the power output by the electric drill 10 can be better transmitted to the adapter 40 through the gearbox 20 and preventing the gearbox 20 from rotating. During specific use, the technician rotates the handwheel 61 clockwise through the driving device 100 to close the valve by the handwheel actuator 60. When the rotating member 45 pushes the spoke 62 to make the handwheel 61 rotate clockwise, the spoke 62 will also generate a reaction force on the rotating member 45, that is, the handwheel 61 exerts a counterclockwise torque on the driving device 100. The technician can hold the electric drill 10 with one hand and the auxiliary handle 50 with the other hand. The two hands of the technician respectively exert a clockwise torque on the driving device 100. These two clockwise torques can balance the counterclockwise torque exerted by the handwheel 61 on the driving device 100, thereby achieving the purpose of better controlling the driving device 100.

[0045] In some of these embodiments, the auxiliary handle 50 is a long strip-shaped plate structure. A hole 51 for the transmission rod 30 to pass through is provided at one end of the auxiliary handle 50 where it is connected to the gearbox 20. The end of the auxiliary handle 50 can be installed on the side end face of the gearbox 20 close to the electric drill 10 by welding, bolting or riveting.

[0046] The usage process of a portable driving device 100 for a handwheel actuator provided by the present utility model is as follows. The technician positions the adapter 40 parallel to the handwheel 61 and makes the rotating member 45 located on one side of the spokes 62 of the handwheel 61. Under the electrical driving action of a battery or an external power source, the electric drill 10 outputs power with high speed and low torque to the gearbox 20 through the transmission rod 30. After the gearbox 20 converts the high-speed and low-torque power into low-speed and high-torque power, it drives the adapter 40 to rotate. The adapter 40 drives the rotating member 45 to rotate around the output shaft 22 of the gearbox 20, and the rotating member 45 makes the handwheel 61 rotate by pushing the spokes 62, thereby controlling the valve through the handwheel actuator 60.

[0047] The beneficial effect of a portable driving device 100 for a handwheel actuator provided by the present utility model is as follows. It includes a gearbox 20, a drill 10 drivingly connected to the input end of the gearbox 20, and a fitting 40 drivingly connected to the output end of the gearbox 20. Among them, a rotating member 45 perpendicular to the fitting 40 and extending towards the handwheel 61 is provided on the fitting 40. The rotating member 45 is configured to be able to rotate the handwheel 61 by pushing the spoke 62 of the handwheel 61. The gearbox 20 converts the high-speed and low-torque power output by the drill 10 into low-speed and high-torque power. The fitting 40 transfers the low-speed and high-torque power output by the gearbox 20 to the handwheel 61 through the rotating member 45, so as to achieve the purpose of driving the handwheel 61 actuator. Since the structural strength of the rotating member 45 is less than that of the fitting 40, once the torque required to rotate the handwheel 61 is greater than the output torque of the driving device 100, the rotating member 45 can be structurally damaged prior to the fitting 40, avoiding excessive loads on the gearbox 20 and the drill 10.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0050] Based on the inspiration of the ideal embodiments of the present utility model as above, through the above description, relevant staff can completely make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A portable drive device for a handwheel actuator, characterized in that: The invention comprises a gear box (20), an electric drill (10) drivingly connected to an input end of the gear box (20), and an adapter (40) drivingly connected to an output end of the gear box (20). The adapter (40) is provided with a rotating member (45) extending perpendicularly to the adapter (40), and the rotating member (45) is configured to rotate the hand wheel (61) by pushing the spokes (62) of the hand wheel (61).

2. The portable driving device of the handwheel actuator according to claim 1, characterized in that: The adapter (40) is a plate-shaped structure. The adapter (40) is provided with a plurality of through holes (46) evenly surrounding the mounting hole (41). The plurality of through holes (46) are configured to be used for mounting the rotating member (45).

3. The portable driving device of the handwheel actuator according to claim 2, characterized in that: The rotating member (45) comprises a flat-head screw (451) and a nut (452); the flat-head screw (451) is configured to be inserted into the through hole (46) and threadedly engaged with the nut (452) so that the rotating member (45) is fixed on the adapter (40).

4. The portable driving device of the handwheel actuator according to claim 2, characterized in that: The plurality of through holes (46) include a first through hole (461), a second through hole (462) and a third through hole (463), and the diameter of the circle where the third through hole (463) is located is greater than the diameters of the circles where the first through hole (461) and the second through hole (462) are located.

5. The portable driving device of the handwheel actuator according to claim 2, characterized in that: The mounting hole (41) is configured to enable the adapter (40) and the output shaft (22) of the gear box (20) to form a circumferential limit.

6. The portable driving device of the hand wheel actuator according to claim 5, characterized in that: A planar thrust ball bearing (42) is sleeved on the output shaft (22), and two ends of the planar thrust ball bearing (42) respectively abut against the end surface of the gear box (20) and the surface of the adapter (40).

7. The portable driving device of the hand wheel actuator according to claim 6, characterized in that: A screw (43) is connected to the end of the output shaft (22), and a gasket (44) is provided between the screw (43) and the adapter (40) for increasing the contact area between the screw (43) and the adapter (40).

8. The portable driving device of the hand wheel actuator according to any one of claims 1 to 7, characterized in that: The structural strength of the rotating part (45) is smaller than the structural strength of the adapter (40), so that the rotating part (45) can produce structural damage before the adapter (40).

9. The portable driving device of the handwheel actuator according to any one of claims 1 to 7, characterized in that: The driving device further comprises an auxiliary handle (50) mounted on the gear box (20), one end of the auxiliary handle (50) being for gripping, and the other end being used for connecting to the gear box (20) and having a hole (51) for the transmission rod (30) to pass through.

10. The portable driving device of the hand wheel actuator according to claim 9, characterized in that: The transmission rod (30) comprises a first transmission part (31) for circumferentially clamping with the output end of the electric drill (10), and a second transmission part (32) for circumferentially clamping with the input hole (21) of the gear box (20).

Images