Pneumatic force measuring device

Abstract

The utility model discloses a pneumatic force measuring device, which is characterized in that the pneumatic force measuring device comprises a supporting seat, a dynamometer is arranged on the supporting seat, the dynamometer is connected with a drawing force tool, and the other end of the drawing force tool is contacted with a contact piece arranged on a contact piece assembly body to carry out drawing force detection; the relative position between the contact piece assembly body and the drawing force tool is adjusted through a pneumatic device; and the force measuring end of the dynamometer is in contact with a pull ring arranged on one side of the drawing force tool through a pull hook. According to the utility model, the plugging force of the contact assembly can be measured and adjusted through a simple and efficient method, the measurement is accurate, and the precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a pneumatic force measuring device. Background Art

[0002] The current method used domestically and internationally to measure the insertion and extraction force of the ring main unit's gas box contact assembly is direct force measurement with a dynamometer. This method is time-consuming and labor-intensive, and is subject to significant measurement errors due to both equipment and human factors. The spring preload determines the insertion and extraction force, and the insertion and extraction force of the contact assembly directly affects product quality. Excessive or insufficient insertion and extraction force can lead to unreliable contact assembly. Excessive force can cause the ring main unit to fail to close or open properly; insufficient force can prevent the contacts from making close contact, preventing the ring main unit from energizing properly after closing.

[0003] Therefore, insertion and extraction forces must be within a controllable and reasonable range to ensure safe and reliable operation of the ring main unit. Based on technical requirements and production needs, the design of a pneumatic force measuring device is imperative. Because the contact assembly is assembled and debugged at a specific workstation, the device also needs to be fixed to a specific work surface to ensure measurement accuracy and user safety. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a pneumatic force measuring device.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0006] A pneumatic force measuring device, comprising:

[0007] a support base, on which a force gauge is provided, the force gauge is connected to a pull-out force tooling, and the other end of the pull-out force tooling contacts a contact piece provided on a contact piece assembly to perform pull-out force detection;

[0008] The relative position between the contact assembly and the pulling force tooling is adjusted by a pneumatic device;

[0009] The force measuring end of the force measuring device contacts a pull ring arranged on one side of the pulling force tooling through a draw hook.

[0010] In a preferred embodiment of the present invention, a base plate is provided below the support seat, and the base plate is used to install and position various components and fix the pulling force tooling on the work surface;

[0011] A sliding plate is provided above the support seat, and a dynamometer support frame is fixed on the sliding plate.

[0012] In a preferred embodiment of the present invention, a pressure plate for fixing the position of the force measuring device is provided on the force measuring device support frame.

[0013] In a preferred embodiment of the present invention, the pulling block of the pulling force tool is connected to the force gauge via the pulling hook and the pulling ring;

[0014] The guide pin passes through the guide plate and cooperates with the bearing and the bearing sleeve to fix the position of the pulling block. The guide plate is fixed on the sliding plate. The guide pin enables the plugging block to slide flexibly in the guide plate.

[0015] In a preferred embodiment of the present invention, the sliding plate and the bottom plate are connected via a left side plate and a right side plate, and reinforcement plates are used at the front and rear to enhance the structural strength.

[0016] In a preferred embodiment of the present invention, the contact assembly is arranged on a movable plate via a fixing frame, and the movable plate is movably arranged on the supporting seat via a sliding component.

[0017] In a preferred embodiment of the present invention, the sliding component is a roller fixed to the left plate or the right plate through a roller pin, and a limiting roller is used to limit the movement range of the movable plate.

[0018] In a preferred embodiment of the present invention, the pneumatic device is operated to move the movable plate along the roller toward the force gauge, during which the roller is prevented from touching the contactor. At the same time, the contact assembly completes the force measurement, and the movable plate is reset in the opposite direction.

[0019] The beneficial effects of the present invention are:

[0020] The utility model can measure and adjust the insertion and extraction force of the contact piece assembly through a simple and efficient method, and the measurement is accurate and high in precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0023] To make the objects, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely intended to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, in the following structure, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion about the concepts of the present invention.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, "first", "second" are for the purpose of description only and cannot be understood as indicating or implying relative importance.

[0025] At present, the design development direction of ring network cabinet gas tank tends to be assembly line operation. As a single core item, the contact patch assembly needs to be assembled and debugged separately before being assembled with the ring network cabinet gas tank. Therefore, a mobile device for fixing the contact patch assembly is needed to solve this problem.

[0026] The utility model discloses a kind of force measuring devices of contact patch assembly of pneumatic type for solving production problem, which has the characteristics of compact structure, simple operation, fixed and movable, small space occupation etc. It is suitable for the factory of producing various ring network cabinet gas tank contact patch assemblies, and it is necessary device for ring network cabinet gas tank contact patch assembly. It is designed uniquely, convenient to disassemble and assemble, and can be upgraded by replacing parts.

[0027] As shown in Figure 1 A kind of pneumatic force measuring device as shown in figure 1 or 2, including support seat for supporting other components, force gage 10 is arranged on support seat, force gage 10 is connected with pulling force tooling 20, pulling force tooling 20 other end is contacted with contact patch (not shown in drawing) arranged on contact patch assembly 40 to carry out pulling force detection.

[0028] The relative position between contact patch assembly 40 and pulling force tooling 20 is adjusted by pneumatic device 30.

[0029] The force end of force gage 10 is contacted with pull ring 200 arranged on one side of pulling force tooling 20 through drawhook 190.

[0030] Specifically, bottom plate 270 is arranged below support seat, and bottom plate 270 is used to install and position each part and fix pulling force tooling 20 on workbench surface.

[0031] Sliding plate 110 is arranged above support seat, and force gage support frame 150 is fixed on sliding plate 110. Force gage support frame 150 is provided with pressing plate 180 for fixing the position of force gage 10.

[0032] The pulling block 230 of the pulling force tooling 20 is connected to the force gauge 10 through the pull hook 190 and the pull ring 200, and the guide pin 210 passes through the guide plate 220 and cooperates with the bearing 160 and the bearing sleeve 170 to fix the position of the pulling block 230. The guide plate 220 is fixed on the sliding plate 110, and the guide pin 210 enables the plug-in block 230 to slide flexibly in the guide plate 220.

[0033] The sliding plate 110 and the bottom plate 270 are connected via a left side plate 130 and a right side plate 140 , and reinforcement plates 120 are used at the front and rear to enhance the structural strength.

[0034] The contact assembly 40 is mounted on the movable plate 280 via a fixing frame 290 , and the movable plate 280 is movably mounted on the supporting base via a sliding assembly.

[0035] Specifically, the cylinder 340 is fastened between the cylinder tail plate 310 and the piston rod fixing plate 320 by pins, the reinforcement plate 120 is fixed between the left plate 130 and the right plate 140, and the piston rod fixing plate 320 is fixed between the cylinder fixing plates 330.

[0036] The sliding assembly is a roller 240 fixed to the left plate 130 or the right plate 140 via a roller pin 250 , and a limiting roller 260 is used to limit the movement range of the movable plate 280 .

[0037] The pneumatic device 30 is operated to move the movable plate 280 along the roller toward the force gauge 10, during which the roller 300 is blocked from contacting the contactor. At the same time, the contact assembly 40 completes the force measurement, and the movable plate 280 is reset in the opposite direction.

[0038] The limiting roller 300 is fixed to the outside of the right cylinder fixing plate 330 , and the contactor is fixed to the inside of the right side plate 140 .

[0039] Because of the above structure, the working principle of the utility model is:

[0040] The contact piece assembly 40 to be tested is fixed on the fixing plate 290 of the pulling force fixture 20 and fastened with bolts.

[0041] Fix the position of the dynamometer 10 and press the reset button on the dynamometer 10 to return the pointer of the dynamometer 10 to zero. The dynamometer 10 must be calibrated periodically before use.

[0042] Pressing the start button activates the pneumatic device 30, causing the movable plate 280 to move along the roller 240 toward the force gauge 10, preventing the roller 300 from contacting the contactor. Simultaneously, the contact assembly completes force measurement, and the movable plate 280 resets in the opposite direction. The movable plate 280 drives the contact assembly 40 to slide toward the plug-in block 230, and the force gauge 10 measures the contact force of the contact assembly 40. During backward force measurement, the hook 190 and ring 200 cooperate to support the plug-in block 230, allowing the guide pin 210 to slide the contact within the guide plate 220 slot. This sliding distance is displayed on the force gauge 10 as a value representing the contact insertion and extraction force. During forward movement, the hook 190, ring 200, and plug-in block 230 cooperate to slide within the guide plate 220 slot via the guide pin 210 to reset the contact.

[0043] Apply an appropriate amount of grease to the outer end boss of the contact assembly 40 and the upper and lower sides of the plug-in block 230, and adjust the contact compression amount through the bolts and nuts on both sides of the contact assembly 40 so that the data displayed on the dynamometer 10 reaches the required value, that is, the plug-in force meets the inspection standard.

[0044] After the adjustment is completed, mark the bolt tightening position with a marker.

[0045] After adjusting one item, loosen the fixing bolt of the contact assembly 40 and replace it with another one. The specific adjustment is the same as above.

[0046] The contact insertion and extraction forces of the contact assembly 40 to be tested are adjusted sequentially until the requirements are met.

[0047] The basic principles and main features of the invention and the advantages of the invention are shown and described above.

[0048] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pneumatic force measuring device, characterized in that: include: a support base, on which a force gauge is provided, the force gauge is connected to a pull-out force tooling, and the other end of the pull-out force tooling contacts a contact piece provided on a contact piece assembly to perform pull-out force detection; The relative position between the contact assembly and the pulling force tooling is adjusted by a pneumatic device; The force measuring end of the force measuring device contacts a pull ring arranged on one side of the pulling force tooling through a draw hook.

2. A pneumatic force measuring device according to claim 1, characterized in that: A base plate is provided below the support seat, and the base plate is used to install and position various components and fix the pulling force tooling on the work surface; A sliding plate is provided above the support seat, and a force measuring device support frame is fixed on the sliding plate; a pressing plate for fixing the position of the force measuring device is provided on the force measuring device support frame.

3. A pneumatic force measuring device according to claim 2, characterized in that: The pulling block of the pulling force tool is connected to the force gauge through the pull hook and the pull ring; A guide pin passes through the guide plate and cooperates with the bearing and the bearing sleeve to fix the position of the pulling block. The guide plate is fixed on the sliding plate, and the guide pin enables the plugging block to slide in the guide plate.

4. A pneumatic force measuring device according to claim 3, characterized in that: The sliding plate and the bottom plate are connected via a left side plate and a right side plate, and reinforcement plates are used at the front and rear to enhance the structural strength.

5. A pneumatic force measuring device according to claim 1, characterized in that: The contact piece assembly is arranged on the movable plate through a fixing frame, and the movable plate is movably arranged on the supporting seat through a sliding component.

6. A pneumatic force measuring device according to claim 5, characterized in that: The sliding assembly is a roller fixed on the left plate or the right plate through a roller pin, and a limiting roller is used to limit the moving range of the movable plate.

7. A pneumatic force measuring device according to claim 6, characterized in that: The pneumatic device is operated to make the movable plate move along the roller toward the force gauge, during which the roller is prevented from touching the contactor. At the same time, the contact assembly completes the force measurement, and the movable plate is reset in the opposite direction.

Images