Multifunctional adjustable molded case circuit breaker service life detection device

Abstract

The utility model discloses a multifunctional adjustable molded case circuit breaker service life detection device, which comprises a rack, and a feeding unit, a placing seat and a testing unit are arranged on the rack. The circuit breaker is transferred to the placing base through the feeding unit, the rack is provided with a positioning air cylinder IV which pushes the placing base and the circuit breaker to the test terminal board, test loop butt joint of the circuit breaker is completed, opening and closing operation of the circuit breaker is completed through action of a test air cylinder VI of the test unit for testing, and the whole device is reasonable in structural design and high in practicability. The operation is simple and fast, the positioning and test connection of the circuit breaker test can be automatically completed, the automation degree is high, and the labor is saved; the whole device is high in universality and can be used for detecting circuit breakers with different shell frame grades.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, and particularly relates to a multi-functional adjustable life detection device for a molded case circuit breaker. Background Art

[0002] The molded case circuit breaker is a device used for long-time overload and instantaneous short-circuit. The performance life detection device is a commonly used detection device in the routine test of the molded case circuit breaker, and is often used to detect the switch stability. Most of the existing molded case circuit breaker detection devices are manual or semi-automatic detections. The operator places and tests the circuit breaker. The labor intensity of the operator is large, and there are certain operation hazards. Moreover, a single detection station can only detect a specific molded case circuit breaker. If multiple different stations are set on one device, the test bench will be too large in volume, which is not convenient for the installation and movement of the test bench. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above technical problems and provide a multi-functional adjustable life detection device for a molded case circuit breaker, the structure of which is reasonably designed, and can conveniently and quickly complete the circuit breakers of different frame ratings.

[0004] In order to achieve the above invention purpose, the technical solution adopted by the utility model is as follows:

[0005] A multi-functional adjustable life detection device for a molded case circuit breaker, which comprises a frame, on which a feeding unit, a placing seat and a testing unit are arranged;

[0006] The feeding unit comprises a sliding seat, a clamping cylinder I, a feeding cylinder II and a horizontal cylinder III. Parallel slide rails I and the horizontal cylinder III are fixedly arranged on the top of the frame. The sliding seat is slidably connected with the slide rail I. The movable end of the horizontal cylinder III is connected with the sliding seat. The feeding cylinder II is fixedly arranged on the sliding seat. The movable end of the feeding cylinder II is fixedly provided with the clamping cylinder I. The two movable ends of the clamping cylinder I are fixedly provided with clamping plates. The tested circuit breaker is clamped by the clamping cylinder I, and the circuit breaker is vertically and horizontally transferred by the feeding cylinder II and the horizontal cylinder III;

[0007] Slide rails II are arranged at the lower end of the frame. The placing seat is slidably connected with the slide rails II. A positioning cylinder IV is arranged at the bottom of the frame. The movable end of the positioning cylinder IV is connected with the placing seat;

[0008] The testing unit comprises a downward pressing cylinder V, a testing cylinder VI and a testing terminal board. The downward pressing cylinder V is vertically fixed on the frame, and its movable end is fixedly provided with a pressing head, which is movably contacted with the upper end of the circuit breaker housing placed on the fixing frame; the testing cylinder VI is vertically arranged, and the movable end of the testing cylinder VI is provided with a switching rod; there are two testing terminal boards, which are connected with the frame and are provided with three contact heads. When the placing seat drives the circuit breaker to displace, the contact heads are connected with the incoming line and the outgoing line terminals of the circuit breaker.

[0009] The clamping cylinder I adopts an SMC type clamping cylinder, and the clamping plate is fixedly arranged at the two movable ends of the clamping cylinder I.

[0010] Furthermore, the test unit further includes a trial trip cylinder VII, which is horizontally arranged, and a push rod is arranged at its movable end, and the push rod contacts the circuit breaker trip key.

[0011] It also includes a control unit, which is provided with a controller, a display screen, and a test instrument. The controller is connected to the electromagnetic control valves of each action cylinder, and the test instrument is connected to the test terminal board to form a loop of the circuit breaker to be measured.

[0012] There are two test cylinders VI, one for closing action and one for opening action. The gate rod of the upper test cylinder VI can press down the main switch of the circuit breaker to complete the opening operation, and the gate rod of the lower test cylinder VI can push up to press the main switch of the circuit breaker to complete the closing operation.

[0013] The placement seat is provided with a limit baffle and a positioning cylinder VIII. The positioning cylinder VIII acts to move the circuit breaker closer to and contact the limit baffle for positioning.

[0014] Furthermore, the test terminal board is detachably connected to the frame, which is convenient for replacing the three-phase contacts with different phase spacings.

[0015] Furthermore, the contact is connected to the terminal board through a spring. The contact includes a frustum-shaped head at the front end and a rod body. The test terminal board is provided with a sleeve, and the rod body and the sleeve are slidably connected. A spring is arranged between the head and the sleeve, and a stop edge is arranged at the tail of the rod body to contact and limit the tail end of the sleeve. In the natural state, the stop edge at the tail of the rod body contacts and connects with the sleeve. When the circuit breaker approaches the test terminal board, the hole part of the wiring terminal of the circuit breaker contacts the head of the contact, the spring is compressed, and the rod body displaces towards the sleeve direction.

[0016] Furthermore, the contact is made of copper material with good electrical conductivity as a whole. Its head frustum structure and the cylindrical part of the rear rod body are integrally formed to ensure the strength and electrical conductivity of the test terminal. The cylindrical part is sleeved with a spring, and the head frustum structure is inserted into the wiring hole of the circuit breaker. The maximum diameter of the frustum is larger than the diameter of the wiring hole of the circuit breaker. When the circuit breaker reaches the test position, the spring will be compressed by 10 - 15 mm, and the spring force can ensure the reliable connection between the frustum and the wiring hole of the circuit breaker.

[0017] Furthermore, the installation position of the trial trip cylinder on the frame is adjustable.

[0018] The working process of the utility model is as follows: The circuit breaker to be detected is clamped by the feeding unit onto the circuit breaker placement seat, and then the placement seat is moved to the detection position driven by the positioning cylinder IV. The test terminal board is connected to the circuit breaker to form a test circuit, and it is secondarily fixed by pressing down with the pressing cylinder V. The circuit breaker is tested for opening and closing operations by driving the brake rod with the test cylinder VI, and the tripping operation is detected by the trial tripping cylinder VII.

[0019] The beneficial effects of the utility model are as follows: The structure of this device is reasonably designed, and the entire test can achieve automatic positioning. It has strong versatility, can be used to detect circuit breakers of different frame ratings, and saves labor. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;

[0021] Figure 2 It is a schematic structural diagram of the contact head of an embodiment of the utility model;

[0022] 1 - Clamping cylinder I; 2 - Feeding cylinder II; 3 - Horizontal cylinder III; 4 - Slide rail; 5 - Clamping plate; 6 - Placement seat; 7 - Limit baffle; 8 - Test terminal board; 9 - Positioning cylinder IV; 10 - Pressing cylinder V; 11 - Test cylinder VI; 12 - Trial tripping cylinder VII; 13 - Control unit; 14 - Frame. Detailed Embodiment

[0023] As shown in the attached Figure 1 A multifunctional adjustable molded case circuit breaker life detection device, which includes a frame, and a feeding unit, a placement seat, and a test unit are arranged on the frame;

[0024] The feeding unit includes a sliding seat, a clamping cylinder I, a feeding cylinder II, and a horizontal cylinder III. Parallel slide rails I and a horizontal cylinder III are fixedly arranged at the top of the frame. The sliding seat is slidably connected to the slide rail I, the movable end of the horizontal cylinder III is connected to the sliding seat, the feeding cylinder II is fixedly arranged on the sliding seat, the movable end of the feeding cylinder II is fixedly provided with the clamping cylinder I, and clamping plates are fixedly arranged at the two movable ends of the clamping cylinder I; The circuit breaker to be measured is clamped by the clamping cylinder I, and the circuit breaker is vertically and horizontally transferred by the feeding cylinder II and the horizontal cylinder III;

[0025] Slide rail II is arranged at the lower end of the frame, the placement seat is slidably connected to the slide rail II, and a positioning cylinder IV is arranged at the bottom of the frame. The movable end of the positioning cylinder IV is connected to the placement seat;

[0026] The test unit includes a downward pressing cylinder Ⅴ, a test cylinder Ⅵ, and a test terminal board. The downward pressing cylinder Ⅴ is vertically fixed on the frame, and its movable end is fixedly provided with a pressure head, which is in movable contact with the upper end of the circuit breaker housing placed on the fixed frame; the test cylinder Ⅵ is vertically arranged, and a brake rod is arranged at the movable end of the test cylinder Ⅵ; there are two test terminal boards, which are connected to the frame and are provided with three contact heads. When the placement seat drives the circuit breaker to displace, the contact heads are connected to the incoming line and the outgoing terminal of the circuit breaker.

[0027] The clamping cylinder Ⅰ uses an SMC type clamping cylinder, and the clamping plate is fixedly arranged at the two movable ends of the clamping cylinder Ⅰ.

[0028] Furthermore, the test unit further includes a trial trip cylinder Ⅶ, which is horizontally arranged, and its movable end is provided with a push rod, and the push rod is in contact with the circuit breaker trip key.

[0029] It also includes a control unit, which is provided with a controller, a display screen, and a test instrument. The controller is connected to the electromagnetic control valves of each action cylinder, and the test instrument is connected to the test terminal board to form a test circuit for the circuit breaker to be tested. The test instrument is used to detect the circuit state after actions such as opening and closing of the circuit breaker, and the display screen can use the "MCGS" display screen of Shenzhen Kunlun Tongtai brand.

[0030] There are two test cylinders Ⅵ, one for closing action and one for opening action. The brake rod of the upper test cylinder Ⅵ can press down the main switch of the circuit breaker to complete the opening operation, and the brake rod of the lower test cylinder Ⅵ can push up to press the main switch of the circuit breaker to complete the closing operation.

[0031] The placement seat is provided with a limit baffle and a positioning cylinder Ⅷ. The positioning cylinder Ⅷ acts to move the circuit breaker closer to and contact the limit baffle for positioning.

[0032] Furthermore, the test terminal board is detachably connected to the frame, which is convenient for replacing the three-phase contact heads with different phase spacings.

[0033] Furthermore, the contact head is connected to the terminal board through a spring. The contact head includes a frustum-shaped head at the front end and a rod body. The test terminal board is provided with a sleeve, and the rod body is slidably connected to the sleeve. A spring is arranged between the head and the sleeve, and a stop edge is arranged at the tail of the rod body to contact and limit the tail end of the sleeve. In the natural state, the stop edge at the tail of the rod body is in contact connection with the sleeve. When the circuit breaker approaches the test terminal board, the hole part of the wiring terminal of the circuit breaker contacts the head of the contact head, the spring is compressed, and the rod body displaces towards the sleeve direction.

[0034] Furthermore, the entire contact is made of copper with good electrical conductivity. Its head frustum structure and the cylindrical part of the rear rod body are integrally formed to ensure the strength and electrical conductivity of the test terminal. The cylindrical part is sleeved with a spring, and the head frustum structure is inserted into the wiring hole of the circuit breaker. The maximum diameter of the frustum is larger than the diameter of the wiring hole of the circuit breaker. When the circuit breaker reaches the test position, it will compress the spring by 10 - 15 mm, and the spring force can ensure a reliable connection between the frustum and the wiring hole of the circuit breaker.

[0035] Furthermore, the installation position of the test - trip cylinder on the frame is adjustable.

[0036] The feeding cylinder II, the horizontal cylinder III, and the positioning cylinder IV are single - axis cylinders, the pressing cylinder V is a double - axis cylinder, the test cylinder VI is a three - axis cylinder, the test - trip cylinder VII is a mini pen - shaped cylinder, and the positioning cylinder VIII is a three - axis cylinder.

[0037] The working process of the present utility model is as follows: The feeding unit clamps the circuit breaker to be detected onto the circuit - breaker placement seat. Then, the placement seat moves to the detection position driven by the positioning cylinder IV. The test terminal board is connected to the circuit breaker to form a test circuit. The pressing cylinder V presses down for secondary fixation. The test cylinder VI drives the brake rod to perform the opening and closing operation test on the circuit breaker, and the test - trip cylinder VII performs the tripping operation detection.

[0038] The above - mentioned is only the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the technical field, without departing from the principle of the present utility model, several improvements can be made, and these improvements should also be regarded as the protection scope of the present utility model without creative work.

Claims

1. A multifunctional adjustable life detection device for plastic case circuit breakers, characterized in that: It includes a frame, on which a feeding unit, a placing seat and a testing unit are arranged; The feeding unit includes a sliding seat, a clamping cylinder I, a feeding cylinder II and a horizontal cylinder III. Parallel slide rails I and the horizontal cylinder III are fixedly arranged at the top of the frame. The sliding seat is slidably connected to the slide rail I. The movable end of the horizontal cylinder III is connected to the sliding seat. The feeding cylinder II is fixedly arranged on the sliding seat. The movable end of the feeding cylinder II is fixedly provided with the clamping cylinder I. Two movable ends of the clamping cylinder I are fixedly provided with clamping plates. The tested circuit breaker is clamped by the clamping cylinder I, and the circuit breaker is vertically and horizontally transferred by the feeding cylinder II and the horizontal cylinder III; Slide rails II are arranged at the lower end of the frame. The placing seat is slidably connected to the slide rails II. A positioning cylinder IV is arranged at the bottom of the frame. The movable end of the positioning cylinder IV is connected to the placing seat; The testing unit includes a downward pressing cylinder V, a testing cylinder VI and a testing terminal board. The downward pressing cylinder V is vertically fixed on the frame, and its movable end is fixedly provided with a pressing head which is in movable contact with the upper end of the circuit breaker housing placed on the fixing frame; The testing cylinder VI is vertically arranged, and a brake rod is arranged at the movable end of the testing cylinder VI; There are two testing terminal boards, which are connected to the frame and are provided with three contact heads. When the placing seat drives the circuit breaker to displace, the contact heads are connected to the incoming line and the outgoing line terminals of the circuit breaker.

2. The multifunctional adjustable plastic case circuit breaker life detection device according to claim 1, characterized in that: The testing unit further includes a tripping test cylinder VII. The tripping test cylinder VII is horizontally arranged, and a push rod is arranged at its movable end. The push rod is in contact with the circuit breaker tripping button.

3. The multifunctional adjustable plastic case circuit breaker life detection device according to claim 1, characterized in that: It further includes a control unit, which is provided with a controller, a display screen and a testing instrument. The controller is connected to the electromagnetic control valves of each action cylinder. The testing instrument is connected to the testing terminal board to form a circuit of the tested circuit breaker.

4. The multi-functional adjustable plastic case circuit breaker life detection device according to claim 1, characterized in that: There are two said testing cylinders VI, one for closing action and one for opening action.

5. The multifunctional adjustable plastic case circuit breaker life detection device according to claim 1, characterized in that: The said placing seat is provided with a limiting baffle and a positioning cylinder VIII. The positioning cylinder VIII acts to move the circuit breaker close to and contact the limiting baffle for positioning.

6. The multifunctional adjustable plastic case circuit breaker life detection device according to claim 1, characterized in that: The testing terminal board is detachably connected to the frame, which is convenient for replacing three-phase contact heads with different phase spacings.

7. The multifunctional adjustable plastic case circuit breaker life detection device according to claim 6, characterized in that: The contact head is connected to the terminal board by a spring. The contact head includes a frustum-shaped head at the front end and a rod body. The testing terminal board is provided with a sleeve. The rod body and the sleeve are slidably connected. A spring is arranged between the head and the sleeve. A retaining edge is arranged at the tail of the rod body to contact and limit the tail end of the sleeve.

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