Self-locking device for cantilevered operating box

Abstract

The application discloses a self-locking device for a cantilever operation box, two fixed seats are fixedly connected with corresponding sleeves; two rotating bearings are respectively sleeved with corresponding sleeves away from one end of the fixed seat, and the peripheral surface of the rotating bearings is slidingly matched with the inner wall of a flange seat; a plurality of self-locking assemblies are arranged on the side surface of the corresponding fixed seat close to the flange seat, the working end surface of the plurality of self-locking assemblies is abutted against the side end surface of the corresponding flange seat away from the support, and a limiting fit is formed. In the application, the driving sleeve is rotated around the rotating bearing, so that the fixed seat fixed at the end of the sleeve rotates together, and then the working end surface of the self-locking assembly on the fixed seat is in real-time abutment against the groove wall of the flange seat, so that the operation box is stably stayed, the operator does not need to continuously support, and the working strength of the operator is reduced; and the rotating bearing is matched with the self-locking assembly, the operation box is effectively prevented from being automatically deflected, the production accident risk caused by the deflection of the operation box is reduced, and the safety and stability of operation are improved.

Description

Technical Field

[0001] This application relates to the field of rolling mill equipment technology, and in particular to a self-locking device for a cantilevered control box. Background Technology

[0002] The 20-roll mill is a high-precision cold rolling equipment. Its operation involves complex process control and high-precision adjustment. It requires refined and intelligent operation by combining equipment characteristics, material properties and process requirements. In order to facilitate operation during the production process, the operator generally adopts a cantilevered operation box structure. The cantilevered operation box structure can be pulled and rotated, making it easy for the operator to observe and operate from any position.

[0003] In existing technology, when installing a cantilever control box, a rotatable base is installed at each end of the cantilever support. One end of the base is not fitted with a connecting flange; instead, a sleeve at this end is welded and fixed to the rolling mill stand. The other end is connected to the control box via a connecting flange. During operation, the cantilever support can be swung around a pivot point on the rolling mill stand to the desired position where the control box is connected. Then, the control box can be rotated around its nearest base to any angle required by the operator, facilitating subsequent operations.

[0004] However, in the above scheme, due to the error in the levelness of the unit's installation reference, the equipment will shift under its own weight. When the operator is not holding the control box, the cantilever control box will involuntarily deflect to the position of its own weight balance point under the action of gravity. If it is necessary to keep the control box in place, the operator needs to move the control box to the operating position and then hold the control box to operate it, and cannot perform other work at the same time, which significantly increases the workload of the staff.

[0005] Therefore, there is an urgent need for a self-locking device for cantilever control boxes to solve the above problems. Utility Model Content

[0006] This application provides a self-locking device for a cantilevered control box, which aims to enable the control box to autonomously shift to its own weight balance point under neutral conditions, while reducing the workload of the staff.

[0007] To achieve the above objectives, this application provides the following technical solutions:

[0008] A self-locking device for a cantilever control box includes a bracket, two flange seats, two rotary bearings, two sleeves, two fixed seats, and multiple sets of self-locking components.

[0009] The two ends of the bracket are connected to the frame and the control box body;

[0010] Two flange seats are respectively fixedly installed at both ends of the bracket and the frame, and the control box body;

[0011] One end of each of the two sleeves extends into the interior of the corresponding flange seat, and the other end extends toward the side where the frame and the control box body are located, respectively.

[0012] Two fixed seats are respectively set on the side of the frame and the control box body near the support. The two fixed seats are fixedly connected to the end of the corresponding sleeve away from the flange seat.

[0013] Two rotating bearings are respectively fitted with corresponding sleeves at the ends away from the fixed seat, and their circumferential surfaces slide in fit with the inner wall of the corresponding flange seat;

[0014] Multiple sets of self-locking components are arranged in a ring on the side of the corresponding fixed seat near the flange seat. The working end face of the multiple sets of self-locking components abuts against the end face of the corresponding flange seat away from the bracket, and forms a limiting fit.

[0015] Furthermore, the flange seat has multiple recessed grooves arranged in a ring on the side face away from the bracket. The groove openings of the multiple grooves are connected sequentially, and the groove walls of the multiple grooves abut against the working end face of the corresponding self-locking component.

[0016] Furthermore, the fixed seat has a stepped groove on the side face near the flange seat for installing the corresponding self-locking component, and the groove opening faces the side where the flange seat is located, and the groove width of the stepped groove increases sequentially from top to bottom.

[0017] Furthermore, the self-locking assembly includes a connecting block, a telescopic rod, a pin, and an elastic element;

[0018] The connecting block is embedded in the large-diameter section of the stepped groove;

[0019] One end of the telescopic rod is connected to the end face of the connecting block facing the groove of the stepped groove, and the other end extends vertically toward the side where the flange seat is located.

[0020] One end of the pin is fixedly connected to the end of the telescopic rod away from the fixed seat, and the other end extends into the groove, with at least one-third of its circumferential surface abutting against the groove wall.

[0021] The elastic element is sleeved around the periphery of the telescopic rod. One end of the elastic element abuts against the end face of the connecting block near the telescopic rod, and the other end abuts against the end face of the pin near the telescopic rod.

[0022] Furthermore, the end of the pin near the flange seat has a tapered structure, and two-thirds of its end circumference is in contact with the groove wall of the groove, forming a sliding fit. The end face area of ​​the pin near the fixed seat is larger than the groove opening area of ​​the stepped groove.

[0023] Furthermore, the flange seat has a stepped structure on the middle of the side closest to the corresponding bracket, and a pressure cap is fixedly installed on the platform of the stepped structure. The side of the pressure cap away from the bracket abuts against the circumference of the corresponding rotating bearing.

[0024] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0025] In this application, the drive sleeve rotates around the rotating bearing, causing the fixed seat fixed at the end of the sleeve to rotate together. This causes the working end face of the self-locking component on the fixed seat to abut against the groove wall of the flange seat in real time, thereby ensuring that the operating box remains stable without the need for continuous support from the operator, reducing the operator's workload. Furthermore, the combination of the rotating bearing and the self-locking component effectively prevents the operating box from deflecting unintentionally, reducing the risk of production accidents that may be caused by the deflection of the operating box and improving the safety and stability of the operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of the assembled state provided in the embodiments of this application;

[0028] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0029] Figure 3 for Figure 2 A magnified view of a portion of region B in the middle;

[0030] Figure 4 This is a structural schematic diagram of the flange seat in a bottom view, provided in an embodiment of this application.

[0031] Icons: 1-Frame; 2-Control box body; 10-Bracket; 11-Flange seat; 111-Groove; 12-Rotating bearing; 13-Sleeve; 14-Fixed seat; 141-Step groove; 15-Gland; 20-Self-locking assembly; 21-Connecting block; 22-Telescopic rod; 23-Elastic element; 24-Pin. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0034] like Figures 1 to 4 As shown, a self-locking device for a cantilever control box includes a bracket 10, two flange seats 11, two rotating bearings 12, two sleeves 13, two fixed seats 14, and multiple sets of self-locking components 20. The two ends of the bracket 10 are connected to the frame 1 and the control box body 2, respectively. The two flange seats 11 are respectively fixedly installed at both ends of the bracket 10, the frame 1, and the control box body 2. One end of each of the two sleeves 13 extends into the interior of the corresponding flange seat 11, and the other end extends towards the side where the frame 1 and the control box body 2 are located. The two fixed seats 14 are respectively provided with… The two fixed seats 14 are fixedly connected to the corresponding sleeves 13 at the ends away from the flange seats 11, placed on the side of the frame 1 and the control box body 2 near the support 10. The two rotating bearings 12 are respectively fitted onto the ends of the corresponding sleeves 13 away from the fixed seats 14, and their circumferential surfaces slide in cooperation with the inner wall of the corresponding flange seats 11. Multiple sets of self-locking components 20 are arranged in a ring on the side of the corresponding fixed seats 14 near the flange seats 11, and the working end faces of the multiple sets of self-locking components 20 abut against the end face of the corresponding flange seats 11 away from the support 10, forming a limiting fit.

[0035] In the above scheme, the flange seat 11 is fixedly installed at both ends of the bracket 10 and the frame 1 and the operating box body 2, and is used to connect the sleeve 13 and provide rotational support. One end of the sleeve 13 extends into the flange seat 11, and the other end extends toward the side where the frame 1 and the operating box body 2 are located, serving to transmit torque and support the rotating bearing 12. The fixed seat 14 is installed on the side of the frame 1 and the operating box body 2 near the bracket 10, and is fixedly connected to the end of the sleeve 13 away from the flange seat 11, providing an installation base for the rotating bearing 12 and the self-locking assembly 20. The rotating bearing 12 is sleeved on the end of the sleeve 13 away from the fixed seat 14, and its circumferential surface slides in contact with the inner wall of the flange seat 11 to realize the rotation function of the sleeve 13.

[0036] When the position of the control box needs to be adjusted, the sleeve 13 is driven to rotate around the rotating bearing 12 by external force (such as manual or electric). Due to the sliding fit between the rotating bearing 12 and the inner wall of the flange seat 11, the sleeve 13 can rotate smoothly, thereby moving the control box to the required position. After the control box moves to the required position, the self-locking assembly 20 starts to work. The working end face of the self-locking assembly 20 abuts against the end face of the flange seat 11 away from the bracket 10, and locks the flange seat 11 (and thus the sleeve 13 and the control box) in the current position by friction, preventing it from deflecting under the action of gravity or other external forces. During this process, the self-locking assembly 20 starts to work after the control box moves to the required position. The working end face of the self-locking assembly 20 abuts against the end face of the flange seat 11 away from the bracket 10, and locks the flange seat 11 (and thus the fixed sleeve 13 and the operating box) in the current position by friction, preventing it from deflecting under the action of gravity or other external forces. During this process, the self-locking assembly 20 can ensure that the operating box stays stably after moving to the required position, without the operator having to hold the operating box continuously, reducing the workload. Moreover, the cooperation between the rotating bearing 12 and the self-locking device prevents the operating box from deflecting involuntarily under the action of gravity or other external forces, reducing the risk of production accidents caused by the deflection of the operating box.

[0037] The flange seat 11 has a plurality of recessed grooves 111 arranged in a ring on the side end face away from the bracket 10. The groove openings of the plurality of grooves 111 are connected in sequence, and the groove walls of the plurality of grooves 111 abut against the working end face of the corresponding self-locking component 20.

[0038] In the above scheme, the groove wall of each groove 111 abuts against the working end face of the corresponding self-locking component 20. When the self-locking component 20 is working, its working end face will be in close contact with the groove wall of the groove 111, which not only reduces the offset of the operating box in the self-locking state, improving the accuracy and stability of operation, but also reduces the risk of self-locking failure due to external forces. When it is necessary to adjust the position of the operating box, the friction or mechanical locking force between the self-locking component 20 and the groove wall of the groove 111 is overcome by external force (such as manual or electric), causing the working end face of the self-locking component 20 to slide out of the groove 111. This moves the operating box to the new required position.

[0039] The fixed seat 14 has a recessed stepped groove 141 on one end face near the flange seat 11 for installing the corresponding self-locking component 20, and the groove opening of the stepped groove 141 faces the side where the flange seat 11 is located. The groove width of the stepped groove 141 increases sequentially from top to bottom.

[0040] In the above scheme, the end face of the fixed base 14 is recessed with a stepped groove 141 for installing the self-locking assembly 20, and the groove opening of the stepped groove 141 faces the side where the flange seat 11 is located, so that the self-locking assembly 20 can be accurately installed on the fixed base 14 and work towards the flange seat 11, improving the installation accuracy and efficiency of the self-locking assembly 20. The groove width of the stepped groove 141 increases sequentially from top to bottom. The purpose of this setting is to constrain the installation path of the self-locking assembly 20 and provide positioning for the working path of the self-locking assembly 20, reducing the error and offset of the self-locking assembly 20 during the installation process.

[0041] The self-locking assembly 20 includes a connecting block 21, a telescopic rod 22, a pin 24, and an elastic element 23. The connecting block 21 is embedded in the large-diameter section of the stepped groove 141. One end of the telescopic rod 22 is connected to the end face of the connecting block 21 facing the groove opening of the stepped groove 141, and the other end extends vertically toward the side where the flange seat 11 is located. One end of the pin 24 is fixedly connected to the end of the telescopic rod 22 away from the fixed seat 14, and the other end extends into the groove 111, with at least one-third of its circumferential surface abutting against the groove wall of the groove 111. The elastic element 23 is sleeved on the periphery of the telescopic rod 22, with one end of the elastic element 23 abutting against the end face of the connecting block 21 near the telescopic rod 22, and the other end abutting against the end face of the pin 24 near the telescopic rod 22.

[0042] In the above scheme, when the control box needs to be moved to a certain position, an external force drives the sleeve 13 to rotate, thereby causing the flange seat 11 to rotate. At this time, the pin 24 slides on the end face of the flange seat 11, and the telescopic rod 22 is adjusted by the elastic element 23 to accommodate the sliding of the pin 24.

[0043] Once the control box is moved to the desired position, the end of the pin 24 slides into the corresponding groove 111. Due to the elastic force of the elastic element 23, at least one-third of the circumferential surface of the end of the pin 24 is in close contact with the groove wall of the groove 111, which enhances the stability and reliability of the self-locking and reduces the risk of self-locking failure caused by external forces.

[0044] When the control box needs to be unlocked, external force overcomes the elastic force of the elastic element 23, causing the end of the pin 24 to slide out of the groove 111. At this time, the telescopic rod 22 extends and retracts under the action of the elastic element 23 to accommodate the sliding of the pin 24. After the end of the pin 24 slides out of the groove 111, the flange seat 11 can rotate freely again, moving the control box to the new required position. During this process, the telescopic rod 22 can automatically extend and retract under the action of the elastic element 23 to accommodate the sliding requirements of the pin 24 during self-locking and unlocking, improving the convenience and efficiency of operation.

[0045] The end of the pin 24 near the flange seat 11 has a tapered structure, and two-thirds of its end circumference is in contact with the groove wall of the groove 111, forming a sliding fit. The end face area of ​​the pin 24 near the fixed seat 14 is larger than the groove opening area of ​​the stepped groove 141.

[0046] In the above design, the end of the pin 24 near the flange seat 11 has a tapered structure. This design allows the pin 24 to slide more smoothly into or out of the groove 111 on the flange seat 11, reducing jamming or wear caused by shape mismatch. Two-thirds of the circumferential surface of the end face of the pin 24 is in contact with the groove wall of the groove 111, ensuring the stability of the pin 24 in the self-locking state and allowing the pin 24 to slide smoothly out of the groove 111 when unlocking.

[0047] The flange seat 11 has a stepped structure on the middle of the side closest to the corresponding bracket 10. A pressure cap 15 is fixedly installed on the platform of the stepped structure. The side of the pressure cap 15 away from the bracket 10 abuts against the circumference of the corresponding rotating bearing 12.

[0048] In the above scheme, the gland 15 is fixedly mounted on the stepped platform of the flange seat 11, ensuring a tight connection between the gland 15 and the flange seat 11 and preventing loosening or detachment due to vibration or external force. The side of the gland 15 away from the bracket 10 abuts against the circumferential surface of the corresponding rotating bearing 12, preventing radial runout or offset of the rotating bearing 12 during rotation and ensuring the stability and reliability of the rotating bearing 12 during rotation.

[0049] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0050] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A self-locking device for a cantilevered control box, characterized in that, Includes a bracket (10), two flange seats (11), two rotating bearings (12), two sleeves (13), two fixed seats (14), and multiple sets of self-locking components (20); The two ends of the bracket (10) are connected to the frame (1) and the control box body (2); The two flange seats (11) are respectively fixedly installed at both ends of the bracket (10), the frame (1), and the operating box body (2); One end of each of the two sleeves (13) extends into the interior of the corresponding flange seat (11), and the other end extends toward the side where the frame (1) and the operating box body (2) are located, respectively; The two fixed seats (14) are respectively disposed on the side of the frame (1) and the operating box body (2) near the support (10), and the two fixed seats (14) are fixedly connected to the end of the corresponding sleeve (13) away from the flange seat (11); The two rotating bearings (12) are respectively fitted with corresponding sleeves (13) at one end away from the fixed seat (14), and their circumferential surfaces slide in contact with the inner wall of the corresponding flange seat (11); Multiple sets of self-locking components (20) are arranged in a ring on the side of the corresponding fixed seat (14) near the flange seat (11). The working end face of the multiple sets of self-locking components (20) abuts against the side end face of the corresponding flange seat (11) away from the bracket (10) and forms a limiting fit.

2. The self-locking device for the cantilevered control box according to claim 1, characterized in that, The flange seat (11) has a plurality of recessed grooves (111) arranged in a ring on one end face away from the bracket (10). The groove openings of the plurality of grooves (111) are connected sequentially, and the groove walls of the plurality of grooves (111) abut against the working end face of the corresponding self-locking component (20).

3. The self-locking device for the cantilevered control box according to claim 2, characterized in that, The fixed seat (14) has a stepped groove (141) recessed on one end face near the flange seat (11) for installing the corresponding self-locking component, and the groove opening of the stepped groove (141) faces the side where the flange seat (11) is located, and the groove width of the stepped groove (141) increases sequentially from top to bottom.

4. The self-locking device for the cantilevered control box according to claim 3, characterized in that, The self-locking assembly (20) includes a connecting block (21), a telescopic rod (22), a pin (24), and an elastic element (23); The connecting block (21) is embedded in the large-diameter section of the stepped groove (141); One end of the telescopic rod (22) is connected to the end face of the connecting block (21) facing the groove of the stepped groove (141), and the other end extends vertically toward the side where the flange seat (11) is located. One end of the pin (24) is fixedly connected to the end of the telescopic rod (22) away from the fixed seat (14), and the other end extends into the groove (111), with at least one-third of its circumferential surface abutting against the groove wall of the groove (111). The elastic element (23) is sleeved around the periphery of the telescopic rod (22). One end of the elastic element (23) abuts against the side end face of the connecting block (21) near the telescopic rod (22), and the other end abuts against the side end face of the pin (24) near the telescopic rod (22).

5. The self-locking device for the cantilevered control box according to claim 4, characterized in that, The pin (24) has a tapered structure at one end near the flange seat (11), and two-thirds of its end circumference is in contact with the groove wall of the groove (111) to form a sliding fit. The end face area of ​​the pin (24) near the fixed seat (14) is larger than the groove opening area of ​​the stepped groove (141).

6. The self-locking device for the cantilevered control box according to claim 1, characterized in that, The flange seat (11) has a stepped structure on the middle of the side near the corresponding bracket (10). A pressure cap (15) is fixedly installed on the platform of the stepped structure. The side of the pressure cap (15) away from the bracket (10) abuts against the circumference of the corresponding rotating bearing (12).

Images