Chassis trolley of switch trolley
By setting up two sets of balance components in the switch trolley, the swing and tilt problems of the switch trolley during operation are solved, automatic balance and stable operation are achieved, mechanical strength and contact fit uniformity are improved, and the safety of the switch cabinet is enhanced.
Patent Information
- Application Number
- CN202422235361.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-11
AI Technical Summary
During operation, existing switch trolleys are prone to sway left and right and front and back tilts, resulting in unstable operation and poor mechanical strength, affecting the contact and coordination between the moving contacts and the static contacts, and causing safety hazards.
Two sets of balance components are adopted, including a balance rod and a balance support, which are connected to the dynamo frame and the static frame respectively. The driving components drive the dynamo frame to move along the length of the balance rod to achieve automatic balance and anti-tilt, eliminate swaying and tilting, and improve mechanical strength.
The automatic balance of the switch trolley is achieved, preventing swaying and tilting, ensuring stable operation, improving the concentricity of the moving contacts and the static contacts and the uniformity of the contact pressure, and enhancing the safety of the switch cabinet.
Smart Images
Figure CN223156578U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a chassis trolley of a switch trolley. Background Art
[0002] A switch cabinet is an important electrical device in the power system, mainly used for control, protection, measurement and power distribution. The switch trolley consists of a chassis trolley and a switch to form a switch trolley. As an important part of the switch cabinet, when it is necessary to switch or maintain the equipment inside the switch cabinet, the movement of the switch trolley is realized by controlling the switch trolley. The switch trolley controls the power switch and line switch inside the switch cabinet to protect the equipment inside the switch cabinet.
[0003] The existing switch cabinets have a travel position confirmation scheme. The chassis trolley uses the internal link mechanism and auxiliary switch in its body to confirm whether it runs to the test position and the working position. When the switch trolley is rocked in and out, it is easy to swing left and right or tilt forward and backward (the structural transmission gap is large and the front and rear forces are uneven). When the switch trolley is rocked from the test position to the working position, it is easy to cause the deviation of the concentricity between the moving contact of the switch trolley and the static contact of the switch cabinet, resulting in poor contact between the moving contact and the static contact, uneven contact pressure, increased contact resistance, long-term heating, and posing a great potential safety hazard to the safe operation of the switch cabinet.
[0004] Therefore, in view of the deficiencies of the prior art, a chassis trolley of a switch trolley is provided. Content of the Utility Model
[0005] In order to overcome the deficiencies of the prior art, the utility model provides a chassis trolley of a switch trolley, aiming to solve the problems of left and right swing, front and rear tilt during the operation of the switch trolley, resulting in unstable operation and poor mechanical strength.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A chassis trolley of a switch trolley includes: a moving frame, a balance assembly, a driving assembly and a static frame;
[0008] The driving assembly connects the moving frame and the static frame;
[0009] The balance assembly includes a balance rod and a balance support. The balance support is fixedly connected to the moving frame. One end of the balance rod is connected to the static frame, and the balance rod is slidably connected to the balance support.
[0010] As a further improvement of the technical solution of the utility model, the balance assembly further includes a travel top ring, and one end of the balance rod away from the static frame is connected to the travel top ring.
[0011] As a further improvement of the technical solution of the present utility model, the moving vehicle frame includes a test position and a working position. The test position includes an S8 travel switch, and the working position includes an S9 travel switch. The travel top ring is separated from or abuts against the S8 travel switch or the S9 travel switch.
[0012] As a further improvement of the technical solution of the present utility model, the balance support is provided with a through hole for inserting the balance rod, and the balance rod is adapted to the through hole.
[0013] As a further improvement of the technical solution of the present utility model, the drive assembly includes a nut and a lead screw. The nut is fixedly connected to the moving vehicle frame, and the nut is in threaded connection with the lead screw.
[0014] As a further improvement of the technical solution of the present utility model, the static vehicle frame includes a crank, and the crank is fixedly connected to the lead screw.
[0015] As a further improvement of the technical solution of the present utility model, the axis of the lead screw is parallel to the axis of the balance rod.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] In the chassis trolley of the switch trolley of the present utility model, by providing two sets of balance components, the two sets of balance components are respectively arranged at both ends of the drive assembly. The balance support is fixedly connected to the moving vehicle frame. One end of the balance rod is connected to the static vehicle frame. When the drive assembly drives the moving vehicle frame to move along the length direction of the balance rod, the balance support sleeves the balance rod, and the force on the moving vehicle frame is concentrated on the balance components. The balance rod is slidably connected to the balance support. The chassis trolley of this switch trolley has the characteristics of automatic tube alignment and anti-swaying of the switch trolley, self-balancing and anti-tipping, stable operation, and high mechanical strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The following further describes the technology of the present utility model in detail with reference to the drawings and specific embodiments:
[0019] Figure 1 is a schematic diagram of the advancing state of the chassis trolley of the switch trolley of the present utility model;
[0020] Figure 2 is a schematic diagram of the retracting state of the chassis trolley of the switch trolley of the present utility model.
[0021] In the figure:
[0022] 1. Moving vehicle frame; 11. S8 travel switch; 12. S9 travel switch;
[0023] 2. Static vehicle frame;
[0024] 3. Balance rod; 4. Balance support; 5. Stroke top ring; 6. Nut; 7. Lead screw. Specific embodiments
[0025] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The same reference numerals used in the drawings indicate the same or similar parts everywhere.
[0026] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to another feature, or indirectly fixed or connected to another feature. In addition, the up, down, left, right, etc. descriptions used in the present invention are only relative to the mutual positional relationship of the various components of the present invention in the drawings.
[0027] Referring to Figures 1 to 2 , a chassis trolley of a switch trolley, comprising a moving frame 1, a balance assembly, a driving assembly and a static frame 2;
[0028] In one embodiment, the driving assembly connects the moving frame 1 and the static frame 2; the balance assembly includes a balance rod 3 and a balance support 4, the balance support 4 is fixedly connected to the moving frame 1, one end of the balance rod 3 is connected to the static frame 2, and the balance rod 3 is slidably connected to the balance support 4.
[0029] Among them, by providing two sets of balance assemblies, the two sets of balance assemblies are respectively arranged at both ends of the driving assembly, the balance support 4 is fixedly connected to the moving frame 1, one end of the balance rod 3 is connected to the static frame 2, and when the driving assembly drives the moving frame 1 to move along the length direction of the balance rod 3, the balance support 4 sleeves the balance rod 3, and the force on the moving frame 1 is concentrated on the balance assembly, and the balance rod 3 is slidably connected to the balance support 4. The chassis trolley of this switch trolley has the characteristics of automatic tube straightening and anti-swaying, self-balancing and anti-tipping, stable operation and high mechanical strength of the switch trolley.
[0030] In one embodiment, the balance assembly further includes a stroke top ring 5, and one end of the balance rod 3 away from the static frame 2 is connected to the stroke top ring 5. The moving frame 1 includes a test position and a working position, the test position includes an S8 travel switch 11, the working position includes an S9 travel switch 12, and the stroke top ring 5 is separated from or abuts against the S8 travel switch 11 or the S9 travel switch 12.
[0031] In one embodiment, the balance support 4 is provided with a through hole for inserting the balance rod 3, and the balance rod 3 is adapted to the through hole. Preferably, the through hole has a certain length, and the inner diameter of the through hole is close to the outer diameter of the balance rod 3, eliminating the phenomenon of left - right swaying or front - back tilting during the operation of rocking the switch trolley from the test position to the working position or from the working position to the test position, improving the concentricity of the mating between the moving contact of the switch trolley and the static contact of the switch cabinet, providing good contact and mating conditions for the moving contact and the static contact, and thus improving the safety of the operation of the switch cabinet.
[0032] In one embodiment, the driving assembly includes a nut 6 and a lead screw 7. The nut 6 is fixedly connected to the moving vehicle frame 1, and the nut 6 is in threaded connection with the lead screw 7. The static vehicle frame 2 includes a crank, and the crank is fixedly connected to the lead screw 7. The axis of the lead screw 7 is parallel to the axis of the balance rod 3.
[0033] In one embodiment, referring to Figure 1 As shown, when it is necessary to rock the switch trolley from the test position to the working position, turn the crank clockwise. The crank drives the entire moving vehicle frame 1 to move forward. The S8 travel switch 11 is separated from the travel top ring 5 until the S9 travel switch 12 abuts against the travel top ring 5 to send a position signal; conversely, referring to Figure 2 As shown, when rocking the switch trolley out from the working position back to the test position, turn the crank counterclockwise. The crank drives the entire moving vehicle frame 1 to move backward. The S9 travel switch 12 is separated from the travel top ring 5 until the S8 travel switch 11 abuts against the travel top ring 5 to send a position signal.
[0034] For other contents of the chassis trolley of the switch trolley described in the present utility model, reference can be made to the prior art and will not be elaborated herein.
[0035] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.
[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. 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.
Claims
1. A chassis trolley for a switch trolley, characterized in that, Comprising: A moving vehicle frame, a balancing component, a driving component, and a static vehicle frame; The driving component connects the moving vehicle frame and the static vehicle frame; The balancing component includes a balance rod and a balance support. The balance support is fixedly connected to the moving vehicle frame. One end of the balance rod is connected to the static vehicle frame, and the balance rod is slidably connected to the balance support.
2. The chassis trolley of a switch trolley according to claim 1, wherein The balancing component further includes a travel top ring. One end of the balance rod away from the static vehicle frame is connected to the travel top ring.
3. The chassis trolley of a switch trolley according to claim 2, characterized in that, The moving vehicle frame includes a test position and a working position. The test position includes an S8 travel switch, and the working position includes an S9 travel switch. The travel top ring is separated from or abuts against the S8 travel switch or the S9 travel switch.
4. The chassis trolley of a switch trolley according to claim 1, characterized in that The balance support is provided with a through hole for the balance rod to be inserted, and the balance rod is adapted to the through hole.
5. The chassis trolley of a switch trolley according to claim 1, characterized in that, The driving component includes a nut and a lead screw. The nut is fixedly connected to the moving vehicle frame, and the nut is threadedly connected to the lead screw.
6. The chassis trolley of a switch trolley according to claim 5, characterized in that, The static vehicle frame includes a crank. The crank is fixedly connected to the lead screw.
7. The chassis trolley of a switch trolley according to claim 5, characterized in that, The axis of the lead screw is parallel to the axis of the balance rod.