Clamping mechanism for secondary equipment test of power system
By designing a test clamping mechanism for the secondary equipment of the power system, the combination of the clamping structure and the moving structure is used to realize the double-station clamping of the relay protection device, the problem of inefficient clamping in the prior art is solved, and the test efficiency and stability are significantly improved.
Patent Information
- Application Number
- CN202510082005.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing secondary equipment test clamping mechanism is generally single station when performing clamping, resulting in inefficient efficiency when testing relay protection devices.
A clamping mechanism for the secondary equipment of the power system is designed, and the clamping structure and the moving structure are provided to achieve dual-station clamping of the relay protection device. The clamping structure includes a clamping block, a clamping plate, a moving column and a spring. Through the use of these components, two sets of relay protection devices can be clamped at one time. The moving structure drives the connecting blocks to move on the workbench through the cooperation of the motor, screw and screw sleeve, thereby achieving effective guidance and stability of the clamping structure.
Through this clamping mechanism, double-station clamping can be achieved when testing the relay protection device, significantly improving the test efficiency, ensuring that the device does not move randomly during the test, and the effect is better.
Smart Images
Figure CN120044273A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power systems, and particularly relates to a clamping mechanism for secondary equipment tests in power systems. Background Art
[0002] Secondary equipment in power systems is low-voltage electrical equipment used to monitor, control, measure, adjust, and protect the operating conditions of power systems and primary equipment. Secondary equipment does not directly participate in the production, transmission, and distribution of electrical energy, but through connection with primary equipment, realizes the monitoring, protection, and control functions of power systems. Secondary equipment is widely used in various links of power systems such as power plants, substations, and transmission lines;
[0003] With the development of smart grids, secondary equipment plays an increasingly important role in the automation and intelligence of power systems. Relay protection devices: are one of the most important secondary equipment in power systems, used to detect faults in power systems and quickly cut off faulty components.
[0004] Relay protection devices usually consist of measuring elements, logic elements, and actuating elements. When conducting tests on relay protection devices, they need to be clamped. However, traditional clamping mechanisms generally perform clamping at a single station during use, resulting in low efficiency when testing relay protection devices. Therefore, a clamping mechanism for secondary equipment tests in power systems is needed to solve the above problems. Summary of the Invention
[0005] The purpose of the present invention is to provide a clamping mechanism for secondary equipment tests in power systems to solve the defect that existing clamping mechanisms for secondary equipment tests generally perform clamping at a single station, resulting in low efficiency when testing relay protection devices.
[0006] To solve the above technical problems, the present invention provides the following technical solution: A clamping mechanism for secondary equipment tests in power systems, including a workbench and a connecting member. Fixed plates are provided on both sides of the top of the workbench, and a relay protection device is placed on one side of the fixed plate;
[0007] A connecting member is provided on the top of the workbench, a moving structure is provided inside the workbench, and clamping structures are provided on both sides of the top of the workbench. The clamping structure includes a connecting block, the connecting block is installed at the middle position of the top of the workbench, connecting members are hinged on both sides of the connecting block, a clamping plate is hinged on one side of the connecting member, a clamping block is installed on one side of the clamping plate, a movable hole is opened inside the clamping plate, a moving column is installed inside the movable hole, one end of the moving column is fixed to one end of the clamping block, and a spring is installed on the outer side of the moving column.
[0008] Preferably, a fixed box is fixed on one side of the clamping plate. A moving block is installed at the top end inside the fixed box. An extrusion block is installed at the bottom end of the moving block. One side of the extrusion block is fixed to one side of a moving column. A connecting frame is fixed to the top end of the moving block. A connecting plate is fixed to one side of the top end of the clamping plate. A connecting rod is installed at the top end of the clamping plate. A clamping column is installed at one side of the bottom end of the connecting rod.
[0009] Preferably, the top end of the connecting frame is hinged to one end of the connecting rod. The middle position of the bottom end of the connecting rod is hinged to the top end of a support frame. The bottom of the other end of the connecting rod is hinged to the clamping column.
[0010] Preferably, the clamping column is inserted into the inside of the connecting plate. The clamping columns are symmetrically distributed on one side of the clamping plate.
[0011] Preferably, one end of the spring is fixed to one side of the extrusion block. The other end of the spring is fixed to one side inside the moving hole. The spring and the extrusion block form a telescopic structure.
[0012] Preferably, there are two groups of clamping plates. The two groups of clamping plates are symmetrically distributed at the top end of the workbench.
[0013] Preferably, there are two groups of clamping blocks and clamping columns respectively. The materials of the two groups of clamping blocks and clamping columns are both rubber.
[0014] Preferably, the moving structure includes a motor, a screw rod, a nut sleeve, a guiding block and a guiding groove. The screw rod is installed inside the workbench. A motor is installed on one side of the screw rod. The nut sleeve is installed on the outer side of the screw rod. The top end of the nut sleeve is fixed to the bottom end of a connecting block. Guiding blocks are installed on both sides of the bottom end of the connecting block. The guiding groove is opened inside the top end of the workbench.
[0015] Preferably, the guiding block is inserted into the inside of the guiding groove. The guiding block and the guiding groove form a guiding structure.
[0016] Preferably, an internal thread is provided on the inner side of the nut sleeve. An external thread is provided on the outer side of the screw rod. The nut sleeve and the screw rod form a threaded connection.
[0017] The advantages of a clamping mechanism for secondary equipment tests in a power system provided by the present invention are as follows:
[0018] 1. By providing a clamping structure, when testing a relay protection device, through the combined use of two groups of clamping blocks and a fixing plate, two relay protection devices can be clamped and tested at one time, making the clamping test of the relay protection device more efficient;
[0019] Further, the connecting block moves on the workbench, so as to push the clamping block on one side of the clamping plate against one side of the relay protection device through the connecting piece, and then cooperate with the use of the fixing plate to initially clamp the relay protection device, so that the relay protection device will not move randomly during the test;
[0020] Further, when the clamping block clamps the relay protection device, the moving column will push the extrusion block to squeeze the moving block upward. During the upward movement of the moving block, it will push one side of the connecting rod to tilt downward through the connecting frame, thereby pushing the clamping column downward to press on one side of the top of the relay protection device to perform secondary clamping on the relay protection device, so that the clamping effect is better when clamping the relay protection device, thus completing the double-station clamping work on the relay protection device;
[0021] 2. By providing a moving structure, in order to make the movement of the connecting block more convenient, therefore, through the cooperation of the motor, screw rod and screw sleeve, the connecting block can be driven to move, making the movement of the connecting block more convenient, and through the sliding of the guiding block inside the guiding groove, the connecting block is guided, making the movement of the connecting block more stable, thus completing the guiding work. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a front three-dimensional structural schematic diagram of the present invention;
[0023] Figure 2 It is a bottom three-dimensional structural schematic diagram of the present invention;
[0024] Figure 3 It is a side-sectional three-dimensional structural schematic diagram of the present invention;
[0025] Figure 4 It is a top three-dimensional structural schematic diagram of the clamping structure of the present invention;
[0026] Figure 5 It is a bottom three-dimensional structural schematic diagram of the clamping structure of the present invention;
[0027] Figure 6 It is of the present invention Figure 3 The partial enlarged three-dimensional structural schematic diagram at A in;
[0028] Figure 7 It is a side partial three-dimensional structural schematic diagram of the clamping structure of the present invention;
[0029] Figure 8 It is a front partial three-dimensional structural schematic diagram of the clamping structure of the present invention.
[0030] Description of the reference numerals in the figures: 1. Workbench; 2. Clamping structure; 201. Connecting block; 202. Clamping plate; 203. Clamping block; 204. Connecting plate; 205. Clamping column; 206. Connecting rod; 207. Support frame; 208. Connecting frame; 209. Fixed box; 2010. Moving block; 2011. Extrusion block; 2012. Moving column; 2013. Spring; 2014. Moving hole; 3. Fixed plate; 4. Relay protection device; 5. Moving structure; 501. Motor; 502. Screw rod; 503. Screw sleeve; 504. Guide block; 505. Guide groove; 6. Connecting piece. Detailed implementation manners
[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0032] Please refer to Figures 1-8 , a clamping mechanism for secondary equipment tests in a power system provided by the present invention includes a workbench 1 and a connecting piece 6. On both sides of the top of the workbench 1, fixed plates 3 are provided, and on one side of the fixed plate 3, a relay protection device 4 is placed; a connecting piece 6 is provided on the top of the workbench 1, a moving structure 5 is provided inside the workbench 1, and clamping structures 2 are provided on both sides of the top of the workbench 1.
[0033] Refer to Figures 1-8 As shown: The moving structure 5 includes a motor 501, a screw rod 502, a screw sleeve 503, a guide block 504 and a guide groove 505. The screw rod 502 is installed inside the workbench 1, a motor 501 is installed on one side of the screw rod 502, a screw sleeve 503 is installed on the outside of the screw rod 502, the top of the screw sleeve 503 is fixed to the bottom of the connecting block 201, guide blocks 504 are installed on both sides of the bottom of the connecting block 201, a guide groove 505 is opened inside the top of the workbench 1, the guide block 504 is inserted into the guide groove 505, and a guiding structure is formed between the guide block 504 and the guide groove 505. An internal thread is provided inside the screw sleeve 503, an external thread is provided on the outside of the screw rod 502, and a threaded connection is formed between the screw sleeve 503 and the screw rod 502.
[0034] Specifically, in this embodiment, when a clamping test needs to be performed on the relay protection device 4, the relay protection device 4 is placed on both sides of the top of the workbench 1. After placing it properly, an external power supply is connected to start the motor 501. After starting, the motor 501 drives the screw 502 to rotate. When the screw 502 rotates, it drives the nut sleeve 503 to rotate. When the nut sleeve 503 rotates, by using the guide block 504, it can drive the connecting block 201 to move on the top of the workbench 1. When the connecting block 201 is moving, it also drives the guide block 504 to slide inside the guide groove 505, thereby guiding the connecting block 201 and making the connecting block 201 move more stably.
[0035] Refer to Figures 1-8 As shown: The clamping structure 2 includes a connecting block 201. The connecting block 201 is installed at the middle position of the top of the workbench 1. Two sides of the connecting block 201 are hinged with connecting members 6. One side of the connecting member 6 is hinged with a clamping plate 202. One side of the clamping plate 202 is provided with a clamping block 203. An activity hole 2014 is formed inside the clamping plate 202. A moving column 2012 is installed inside the activity hole 2014. One end of the moving column 2012 is fixed to one end of the clamping block 203. A spring 2013 is installed on the outer side of the moving column 2012. One side of the clamping plate 202 is fixed with a fixed box 209. The top end inside the fixed box 209 is installed with a moving block 2010. The bottom end of the moving block 2010 is installed with an extrusion block 2011. One side of the extrusion block 2011 is fixed to one side of the moving column 2012. The top end of the moving block 2010 is fixed with a connecting frame 208. One side of the top end of the clamping plate 202 is fixed with a connecting plate 204. The top end of the clamping plate 202 is installed with a connecting rod 206. One side of the bottom end of the connecting rod 206 is installed with a clamping column 205. The top end of the connecting frame 208 is hinged to one end of the connecting rod 206. The middle position of the bottom end of the connecting rod 206 is hinged to the top end of the support frame 207. The bottom of the other end of the connecting rod 206 is hinged to the clamping column 205. The clamping column 205 is inserted into the inside of the connecting plate 204. The clamping columns 205 are symmetrically distributed on one side of the clamping plate 202. One end of the spring 2013 is fixed to one side of the extrusion block 2011. The other end of the spring 2013 is fixed to one side inside the activity hole 2014. The spring 2013 and the extrusion block 2011 form a telescopic structure. There are two groups of clamping plates 202, and the two groups of clamping plates 202 are symmetrically distributed on the top of the workbench 1. There are two groups of both the clamping blocks 203 and the clamping columns 205, and the materials of the two groups of clamping blocks 203 and the clamping columns 205 are both rubber.
[0036] Specifically, in this embodiment, when the connecting block 201 moves, it will push the clamping plate 202 to move to one side through the connecting member 6. When the clamping plate 202 moves, it will push the clamping block 203 to move. When one side of the clamping block 203 abuts against one side of the relay protection device 4, the movement of the connecting block 201 stops. At this time, the use of the clamping block 203 can cooperate with the fixing plate 3 to clamp the relay protection device 4. Since there are two groups of clamping blocks 203, two groups of relay protection devices 4 can be clamped simultaneously, realizing double-station clamping work, making the efficiency higher when testing the relay protection device 4;
[0037] When one side of the clamping block 203 exactly abuts against one side of the relay protection device 4, the moving column 2012 at one end of the clamping block 203 will push the extrusion block 2011 to move inside the fixed box 209. When the extrusion block 2011 moves, it will also drive the spring 2013 to stretch. When the extrusion block 2011 moves inside the fixed box 209, it will squeeze the moving block 2010 to move upward. When the moving block 2010 moves upward, it will push the connecting frame 208 to move upward. Since the top end of the connecting frame 208 is hinged to one end of the connecting rod 206, it will push one end of the connecting rod 206 to move upward. Since the middle position at the bottom end of the connecting rod 206 is hinged to the top end of the support frame 207, when one end of the connecting rod 206 moves upward, the other end will move downward. When one end of the connecting rod 206 moves downward, it will push the clamping column 205 to move downward under the action of the guiding hole inside the connecting plate 204 and fit against the top end of the relay protection device 4 for secondary clamping, thus completing the multi-stage clamping work on the relay protection device 4, making the effect better when the relay protection device 4 is clamped for testing and not prone to random movement, and thus completing the test work.
[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A clamping mechanism for testing secondary equipment in a power system, characterized in that: It comprises a workbench (1) and a connecting piece (6); a fixing plate (3) is fixed on both sides of the top of the workbench (1); and a relay protection device (4) is placed on one side of the fixing plate (3); The top of the workbench (1) is provided with a connecting piece (6), the interior of the workbench (1) is provided with a moving structure (5), and clamping structures (2) are provided on both sides of the top of the workbench (1), and the clamping structure (2) comprises a connecting block (201), and the connecting block (201) is installed at the middle position of the top of the workbench (1), and the two sides of the connecting block (201) are hinged with connecting pieces (6), and one side of the connecting piece (6) is hinged with a clamping plate (202), and one side of the clamping plate (202) is installed with a clamping block (203), and a movable hole (2014) is opened inside the clamping plate (202), and a movable column (2012) is installed inside the movable hole (2014), and one end of the movable column (2012) is fixed to one end of the clamping block (203), and a spring (2013) is installed on the outer side of the movable column (2012).
2. The clamping mechanism for testing secondary equipment in a power system according to claim 1, characterized in that: A fixed box (209) is fixed on one side of the clamping plate (202), a moving block (2010) is installed at the top end of the fixed box (209), an extrusion block (2011) is installed at the bottom end of the moving block (2010), one side of the extrusion block (2011) is fixed to one side of the moving column (2012), a connecting frame (208) is fixed on the top end of the moving block (2010), a connecting plate (204) is fixed on one side of the top end of the clamping plate (202), a connecting rod (206) is installed on the top end of the clamping plate (202), and a clamping column (205) is installed on one side of the bottom end of the connecting rod (206).
3. The clamping mechanism for testing secondary equipment in a power system according to claim 2, characterized in that: The top end of the connecting frame (208) is hinged to one end of the connecting rod (206), the middle position of the bottom end of the connecting rod (206) is hinged to the top end of the supporting frame (207), and the bottom of the other end of the connecting rod (206) is hinged to the clamping column (205).
4. The clamping mechanism for testing secondary equipment in a power system according to claim 2, characterized in that: The clamping columns (205) are inserted into the interior of the connecting plate (204), and the clamping columns (205) are symmetrically distributed on one side of the clamping plate (202).
5. The clamping mechanism for testing secondary equipment in a power system according to claim 1, characterized in that: One end of the spring (2013) is fixed to one side of the extrusion block (2011), and the other end of the spring (2013) is fixed to one side inside the movable hole (2014), and a telescopic structure is formed between the spring (2013) and the extrusion block (2011).
6. The clamping mechanism for testing secondary equipment in a power system according to claim 1, characterized in that: Two groups of the clamping plates (202) are provided, and the two groups of the clamping plates (202) are symmetrically distributed on the top of the workbench (1).
7. The clamping mechanism for testing secondary equipment in a power system according to claim 1, characterized in that: The clamping blocks (203) and the clamping columns (205) are provided in two groups, and the material of the two groups of clamping blocks (203) and the clamping columns (205) is rubber.
8. The clamping mechanism for testing secondary equipment in a power system according to claim 1, characterized in that: The movable structure (5) comprises a motor (501), a screw rod (502), a screw sleeve (503), a guide block (504) and a guide groove (505); the screw rod (502) is installed inside the workbench (1); the motor (501) is installed on one side of the screw rod (502); the screw sleeve (503) is installed on the outer side of the screw rod (502); the top end of the screw sleeve (503) is fixed to the bottom end of the connecting block (201); guide blocks (504) are installed on both sides of the bottom end of the connecting block (201); and the guide groove (505) is opened inside the top end of the workbench (1).
9. The clamping mechanism for testing secondary equipment in a power system according to claim 8, characterized in that: The guide block (504) is inserted into the interior of the guide groove (505), and a guide structure is formed between the guide block (504) and the guide groove (505).
10. The clamping mechanism for testing secondary equipment in a power system according to claim 8, characterized in that: The inner side of the screw sleeve (503) is provided with an internal thread, and the outer side of the screw rod (502) is provided with an external thread, so that a threaded connection is formed between the screw sleeve (503) and the screw rod (502).