Bolt screwing device

Abstract

The utility model relates to a bolt screwing device which comprises a shell, at least two universal sleeves, a driving mechanism and a control panel, a containing space is formed in the shell, the at least two universal sleeves are arranged on one side of the shell and arranged side by side in the first direction, the driving mechanism is arranged in the containing space, and the control panel is arranged on the driving mechanism. The driving mechanism is provided with at least two power output ends, each power output end is in transmission connection with the corresponding universal sleeve, the control panel is arranged on the shell, and the control panel is electrically connected with the driving mechanism. By the adoption of the bolt screwing device, at least two universal sleeves can be used for synchronously screwing a plurality of bolts passing through the connecting line of the center points of the universal sleeves on the flange plate, the number of operation steps for screwing the bolts is reduced, the efficiency of screwing the bolts is improved exponentially, the operation time is saved, and the production efficiency is improved. And the danger coefficient and the radiation risk of operators are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automation equipment, and in particular to a bolt tightening device. Background Art

[0002] Currently, nuclear power plant reactors in the world all use chain reactions of materials such as metallic uranium or plutonium to generate huge amounts of heat energy. During the fission process, certain radioactive pollutants are produced. These radioactive pollutants need to be cleaned regularly. Therefore, the filter elements of the nuclear power plant chemical and volume control systems in the primary circuit of the nuclear power plant need to be replaced frequently.

[0003] During the filter element replacement process, operators are usually required to wear protective measures and use a torque wrench to tighten a pair of bolts on the flange located on a line passing through its center point for a specific number of turns in turn. Repeat the operation until the required tightening torque of all bolts is met. The operation time is long, the operator's risk factor is high, and the radiation risk is high. Utility Model Content

[0004] Based on this, it is necessary to provide a bolt tightening device to address the problems of long operation time, high risk factor for operators and high radiation risk in the filter element replacement process of the nuclear power plant chemical and volume control system in the primary circuit of the nuclear power plant.

[0005] According to one aspect of the present application, an embodiment of the present application provides a bolt tightening device, comprising: a shell, wherein a accommodating space is provided in the shell; at least two universal sleeves are arranged on one side of the shell, and the at least two universal sleeves are arranged side by side along a first direction; a driving mechanism, arranged in the accommodating space, and the driving mechanism has at least two power output ends, and each of the power output ends is correspondingly connected to each of the universal sleeves in a transmission manner; and a control panel, arranged on the shell, and the control panel is electrically connected to the driving mechanism.

[0006] In one embodiment, the driving mechanism includes a motor driver and a control circuit board electrically connected to each other, the motor driver includes at least two power output ends, and the control panel is electrically connected to the control circuit board.

[0007] In one embodiment, the control circuit board is provided with an electrically connected chip circuit, a step-down circuit, an external high-speed crystal oscillator circuit, a reset circuit, a communication circuit, a current sensor circuit and an indicator light circuit, and the current sensor circuit is electrically connected to the power supply of the motor driver.

[0008] In one of the embodiments, the bolt tightening device also includes a buzzer connected to the shell; the control circuit board is also provided with a buzzer circuit electrically connected to the chip circuit, and the buzzer is electrically connected to the buzzer circuit.

[0009] In one of the embodiments, the bolt tightening device further comprises a holding armrest connected to the shell, and a holding space is formed between at least a portion of the structure of the holding armrest and the shell.

[0010] In one of the embodiments, the bolt tightening device includes two holding armrests, and the two holding armrests are arranged on two sides of the shell opposite to each other along the first direction.

[0011] In one embodiment, the control panel includes a plurality of control buttons for adjusting the driving mode of the driving mechanism, and the control buttons are arranged on the holding armrest; the control circuit board is also provided with a plurality of button circuits electrically connected to the chip circuits respectively, and the control buttons are electrically connected to the button circuits one by one.

[0012] In one embodiment, the control panel includes a display screen for displaying driving parameters of the driving mechanism, the display screen is electrically connected to the chip circuit, and the display screen is arranged on the other side of the housing opposite to the universal sleeve.

[0013] In one embodiment, the universal sleeve, the holding armrest and the display screen are arranged on the housing along a second direction, and the second direction is perpendicular to the first direction.

[0014] In one of the embodiments, the bolt tightening device also includes an aviation plug arranged on the shell; the control circuit board is also provided with an interface circuit electrically connected to the chip circuit, and the aviation plug is electrically connected to the interface circuit.

[0015] The above-mentioned bolt tightening device is configured by arranging at least two universal sleeves arranged side by side along a first direction on one side of the shell, and making at least two power output ends of the driving mechanism have a one-to-one corresponding transmission connection with the universal sleeves. In this way, by adjusting the relative angle relationship between the shell and the flange, at least two universal sleeves can be used to synchronously tighten multiple bolts on the flange that pass through the center point of the flange, thereby reducing the number of operating steps for tightening the bolts, multiplying the efficiency of tightening the screw, saving operation time, and reducing the danger factor and radiation risk of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a bolt tightening device provided in one embodiment of the present application.

[0017] Figure 2 This is a schematic diagram of the structure of a bolt tightening device provided in one embodiment of the present application after some of its structures are hidden.

[0018] Figure 3A schematic diagram of the structure provided for an embodiment of the present application from another perspective.

[0019] The reference numerals in the specific implementation manner are as follows:

[0020] 10: Bolt tightening device;

[0021] 100: housing;

[0022] 200: Universal sleeve;

[0023] 300: driving mechanism, 310: motor driver, 311: power output end, 320: control circuit board;

[0024] 400: control panel, 410: control button, 420: display screen;

[0025] 500: holding armrest, 510: holding space;

[0026] 600: Aviation plug;

[0027] x: first direction, y: second direction. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] Figure 1 The overall structural diagram of a bolt tightening device 10 provided in one embodiment of the present application is shown. Figure 2 A schematic structural diagram of a bolt tightening device 10 provided in one embodiment of the present application is shown with part of the structure hidden.

[0035] In order to at least partially solve the problems of long operation time, high risk factor for operators and high radiation risk in the process of replacing filter elements in the chemical and volume control system of nuclear power plants in the primary circuit of nuclear power plants in the related art, please refer to Figure 1 to Figure 2 The embodiment of the present application provides a bolt tightening device 10, which includes a shell 100, at least two universal sleeves 200, a driving mechanism 300 and a control panel 400. The shell 100 is provided with a accommodating space, at least two universal sleeves 200 are arranged on one side of the shell 100, at least two universal sleeves 200 are arranged side by side along a first direction x, the driving mechanism 300 is arranged in the accommodating space, the driving mechanism 300 has at least two power output ends 311, each power output end 311 is correspondingly connected to each universal sleeve 200, the control panel 400 is arranged on the shell 100, and the control panel 400 is electrically connected to the driving mechanism 300.

[0036] At least two universal sleeves 200 are arranged on one side of the housing 100 and arranged side by side along the first direction x. The universal sleeves 200 are of a rigid structure and are used to insert bolts. They can be disassembled and replaced. Figure 1 and Figure 2 In the figure, the first direction x is the direction from the upper left to the lower right in the figure, or the direction from the lower right to the upper left in the figure. Figure 1 and Figure 2 In the embodiment shown, the number of the universal sleeves 200 is two. In other embodiments, a plurality of universal sleeves 200 may be provided on the housing 100 along the first direction x. When in use, at least two universal sleeves 200 may be simultaneously sleeved on two or more bolts located on a straight line parallel to the first direction x, so that the two or more bolts on the straight line may be simultaneously tightened or loosened under the driving action of the power output end 311 of the driving mechanism 300. At the same time, the number of the power output ends 311 in the driving structure 300 corresponds to the number of the universal sleeves 200, and each power output end 311 is respectively connected to each universal sleeve 200 in a transmission manner, so that each universal sleeve 200 can rotate under the driving action of the power output end 311 to screw the bolts.

[0037] The bolt tightening device 10 of the embodiment of the present application is configured with at least two universal sleeves 200 arranged side by side along a first direction x on one side of the shell 100, and at least two power output ends 311 of the driving mechanism 300 are transmission-connected to the universal sleeves 200 in a one-to-one correspondence. In this way, by adjusting the relative angle relationship between the shell 100 and the flange, at least two universal sleeves 200 can be used to synchronously tighten multiple bolts on the flange that are connected by a line passing through the center point of the flange, thereby reducing the number of operating steps for tightening the bolts, multiplying the efficiency of tightening the screw, saving operating time, and reducing the risk factor and radiation risk for the operator.

[0038] The driving mechanism 300 is used to drive the universal sleeve 200 to rotate through the power output end 311 so as to screw the bolt. In some embodiments, the driving mechanism 300 optionally includes a motor driver 310 and a control circuit board 320 electrically connected to each other, the motor driver 310 includes at least two power output ends 311, and the control panel 400 is electrically connected to the control circuit board 320. The motor driver 310 has a plurality of different working modes, such as a locking mode, a jog mode, a tightening mode, a loosening mode, etc. The working mode of the motor driver 310 can be adjusted through the control panel 400 and the control circuit board 320.

[0039] In some embodiments, optionally, the control circuit board 320 is provided with an electrically connected chip circuit, a step-down circuit, an external high-speed crystal oscillator circuit, a reset circuit, a communication circuit, a current sensor circuit and an indicator light circuit, and the current sensor circuit is electrically connected to the power supply of the motor driver 310. Among them, the different circuits on the control circuit board 320 can be connected in series with each other, or can be a mixed state of both series connection and parallel connection, which is not limited here. The control circuit board 320 realizes the transmission of different functional instructions to the motor driver 310 through the above circuits, so that the motor driver 310 can realize different working modes.

[0040] In some embodiments, the bolt tightening device 10 may further include a buzzer connected to the housing 100; the control circuit board 320 may further include a buzzer circuit electrically connected to the chip circuit, and the buzzer is electrically connected to the buzzer circuit. A buzzer is a sound-generating element, and a DC voltage (active buzzer) or a square wave (passive buzzer) may be applied to both ends of the buzzer to make a sound. In this embodiment, by providing a buzzer on the housing 100, the buzzer may be controlled to sound to serve as a reminder when the motor driver 310 switches between different tooling modes or completes the current work task.

[0041] Since part of the structure of the bolt tightening device 10 in the embodiment of the present application is arranged on the shell 100, and part of the structure is arranged inside the shell 100, in order to improve its convenience of use, in some embodiments, optionally, the bolt tightening device 10 also includes a holding armrest 500 connected to the shell 100, and a holding space 510 is formed between at least part of the structure of the holding armrest 500 and the shell 100. In this way, the holding armrest 500 can be used to hold the entire bolt tightening device 10, and the holding space 510 between at least part of the structure of the holding armrest 500 and the shell 100 also facilitates the operator to adjust different holding techniques.

[0042] like Figure 1 and Figure 2As shown, in some embodiments, the bolt tightening device 10 optionally includes two gripping armrests 500, which are arranged on both sides of the housing 100 opposite to each other along the first direction x. The two gripping armrests 500 are used to facilitate holding the housing 100 with both hands for operation.

[0043] The control panel 400 can be used in conjunction with the control circuit board 320 to adjust the working mode of the motor driver 310. In some embodiments, optionally, the control panel 400 includes a plurality of control buttons 410 for adjusting the driving mode of the driving mechanism 300, the control buttons 410 are arranged on the gripping armrest 500, and the control circuit board 320 is also provided with a plurality of button circuits electrically connected to the chip circuit respectively, and the control buttons 410 are electrically connected to the button circuits one by one. As described above, the motor driver 310 has a plurality of different working modes, such as a locking mode, a jog mode, a tightening mode, a loosening mode, etc., wherein the control button 410 can include a jog button to directly control the jog operation of the motor driver 310, and the control button 410 can also include a selection mode button for selecting the current operating mode, a determination or exit current mode button for entering the current operating mode or exiting the current operating mode, an increase target torque button for increasing the screwing target torque of the motor driver 310, and a decrease target torque button for reducing the screwing target torque of the motor driver 310.

[0044] Please continue reading Figure 1 In some embodiments, the control panel 400 optionally includes a display screen 420 for displaying the driving parameters of the driving mechanism 300, the display screen 420 is electrically connected to the chip circuit, and the display screen 420 is arranged on the other side of the housing 100 opposite to the universal sleeve 200. The display screen 420 can be embedded in the housing 100, connected to the serial port led out of the control circuit board 320, and is used to display the current working mode and current torque of the bolt tightening device 10.

[0045] In some embodiments, the universal sleeve 200, the gripping armrest 500 and the display screen 420 are optionally arranged on the housing 100 along the second direction y, and the second direction y is perpendicular to the first direction x. Figure 1 and Figure 2 In the figure, the second direction y is the direction from the lower left to the upper right, or the direction from the upper right to the lower left. By arranging the universal sleeve 200, the holding armrest 500 and the display screen 420 along the second direction y on the shell 100, the layout positions of the components on the shell 100 are better in line with the operation logic of the operator. The operator holds the holding armrest 500 and observes the current working mode and the current torque of the bolt tightening device 10 through the display screen 420, so as to adjust the position and angle of the universal sleeve 200 to tighten the bolt.

[0046] Figure 3 A schematic diagram of a structure provided by an embodiment of the present application at another viewing angle is shown.

[0047] Please combine Figure 1 to Figure 2 Also see Figure 3 In some embodiments, the bolt tightening device 10 may further include an aviation plug 600 disposed on the housing 100, and the control circuit board 320 may further include an interface circuit electrically connected to the chip circuit, and the aviation plug 600 may be electrically connected to the interface circuit. The aviation plug 600 is used to connect to an external power source to power the device.

[0048] During the use of the bolt tightening device 10, after the universal sleeve 200 is inserted into the bolt, the current operating mode is selected by selecting the mode button, such as locking mode, inching mode, tightening mode, loosening mode, etc., and the current working mode is entered or exited by pressing the confirm or exit current mode button. After the current working mode is completed, the buzzer on the control circuit board 320 will sound an alarm to remind and automatically exit the current mode. During the completion of the current working mode, the current working mode can be interrupted and exited in advance by pressing the confirm or exit current mode button. The current operating mode can be changed by selecting the mode button, and the current working mode can be re-entered by pressing the confirm or exit current mode button. When the loosening mode is selected by selecting the mode button, the bolt tightening device 10 will automatically stop after the bolt is completely loosened, and a buzzer alarm will be sounded to remind you. When the tightening mode is selected by selecting the mode button, the target torque can be increased or decreased by the reduce target torque button and the increase target torque button. The adjustable range is 20N·m-180N·m. The real-time torque can be observed on the display screen 420. After reaching the target torque, a buzzer alarm will be sounded to remind you. When the locking mode is selected by selecting the mode button, the device enters a locked state. No matter which button is pressed, there will be no response. Long pressing the mode selection button for two seconds can exit the locking mode and resume the normal working mode.

[0049] In summary, the embodiment of the present application further provides a control method of a bolt tightening device 10, comprising:

[0050] S102, holding the holding handrail 500 with both hands, aligning the universal sleeve 200 with the two diagonal bolts on the flange, if it cannot be aligned, long press the inching button to inching to align the universal sleeve 200.

[0051] S104, select the required working mode, such as locking mode, inching mode, tightening mode, loosening mode, etc., by selecting the mode button, and confirm and exit the current working mode by confirming and exiting the current working mode button.

[0052] S106. In the loosening mode, the bolt tightening device 10 will automatically stop after the bolt is completely loosened, and a buzzer alarm will sound to remind you; in the tightening mode, the target torque can be increased or decreased by pressing the target torque reduction button and the target torque button, and the adjustable range is 20N·m-180N·m. The real-time torque can be observed on the display screen 420, and a buzzer alarm will sound to remind you when the target torque is reached.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A bolt tightening device, characterized in that: include: A housing, wherein a housing space is provided in the housing; At least two universal sleeves are arranged on one side of the housing, and the at least two universal sleeves are arranged side by side along a first direction; A driving mechanism is disposed in the accommodating space, wherein the driving mechanism has at least two power output ends, and each of the power output ends is correspondingly connected to each of the universal sleeves in a transmission manner; as well as A control panel is arranged on the shell, and the control panel is electrically connected to the driving mechanism.

2. The bolt tightening device according to claim 1, characterized in that: The driving mechanism includes a motor driver and a control circuit board which are electrically connected to each other, the motor driver includes at least two power output ends, and the control panel is electrically connected to the control circuit board.

3. The bolt tightening device according to claim 2, characterized in that: The control circuit board is provided with an electrically connected chip circuit, a step-down circuit, an external high-speed crystal oscillator circuit, a reset circuit, a communication circuit, a current sensor circuit and an indicator light circuit, and the current sensor circuit is electrically connected to the power supply of the motor driver.

4. The bolt tightening device according to claim 3, characterized in that: The bolt tightening device also includes a buzzer connected to the housing; The control circuit board is also provided with a buzzer circuit electrically connected to the chip circuit, and the buzzer is electrically connected to the buzzer circuit.

5. The bolt tightening device according to claim 3, characterized in that: The bolt tightening device also includes a holding armrest connected to the shell, and a holding space is formed between at least a partial structure of the holding armrest and the shell.

6. The bolt tightening device according to claim 5, characterized in that: The bolt tightening device comprises two holding armrests, and the two holding armrests are arranged on two sides of the shell opposite to each other along the first direction.

7. The bolt tightening device according to claim 5, characterized in that: The control panel includes a plurality of control buttons for adjusting the driving mode of the driving mechanism, and the control buttons are arranged on the holding armrest; The control circuit board is also provided with a plurality of button circuits electrically connected to the chip circuits respectively, and the control buttons are electrically connected to the button circuits in a one-to-one correspondence.

8. The bolt tightening device according to claim 5, characterized in that: The control panel includes a display screen for displaying driving parameters of the driving mechanism. The display screen is electrically connected to the chip circuit, and the display screen is arranged on the other side of the housing opposite to the universal sleeve.

9. The bolt tightening device according to claim 8, characterized in that: The universal sleeve, the holding armrest and the display screen are arranged on the housing along a second direction, and the second direction is perpendicular to the first direction.

10. The bolt tightening device according to claim 3, characterized in that: The bolt tightening device also includes an aviation plug provided on the housing; The control circuit board is also provided with an interface circuit electrically connected to the chip circuit, and the aviation plug is electrically connected to the interface circuit.

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