Rare earth calcining tunnel kiln return line section

Abstract

The utility model discloses a rare earth calcining tunnel kiln return track section, relates to rare earth calcining equipment technical field, including return track head subassembly, back and forth limit switch subassembly, automatic hooking and unhooking subassembly, intermediate bracket subassembly and return track tail subassembly, when working, head subassembly drive chain reciprocating motion, and automatic hooking and unhooking subassembly realizes trolley automatic hooking and unhooking through counterweight rod dead weight, and when moving forward, the hook drives trolley forward, and when moving backward, the hook is separated and resets, and limit switch subassembly controls stroke, and intermediate bracket and tail subassembly support chain and reduce friction, and the structure does not need additional power to realize automatic hooking and unhooking, and the structure is simple and reliable, and each subassembly height is adjustable, and the requirement to foundation is low, and the adaptability is strong, and is applicable to the continuous conveying of rare earth calcining kiln trolley.

Description

Technical Field

[0001] This utility model relates to the technical field of rare earth calcination equipment, specifically a segmentation of the return line of a rare earth calcination tunnel kiln. Background Technology

[0002] In the rare earth calcination production process, the kiln trolley needs to move directionally via a return line to complete the continuous calcination process. The existing return line hook-and-unhook structure often relies on additional power, which has problems such as complex structure and high failure rate. In addition, some components are at a fixed height, which has strict requirements on the flatness of the installation foundation and poor adaptability. Therefore, a segmented return line for rare earth calcination tunnel kilns is needed that is simple in structure, has reliable automatic hook-and-unhook, and is height adjustable.

[0003] To address this issue, the present invention provides a segmented return line for a rare earth calcination tunnel kiln to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a segmented return line for a rare earth calcination tunnel kiln, thus solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a segmented return line for a rare earth calcination tunnel kiln, comprising a return line head assembly, a return limit switch assembly, an automatic hook-and-unhook assembly, an intermediate bracket assembly, and a return line tail assembly, arranged sequentially. The return line head assembly includes a cycloidal pin reducer motor, a sprocket, a chain, a height adjustment support, and a steel profile bracket. The cycloidal pin reducer motor is supported by the steel profile bracket, the sprocket is connected to the output shaft of the cycloidal pin reducer motor, and the chain meshes with the sprocket. The automatic hook-and-unhook assembly includes a double-ear hook, a counterweight rod, a channel steel roller, a channel steel bracket, and a height adjustment support. The double-ear hook... The hook is fixedly connected to the counterweight rod. The channel steel roller is set on the channel steel bracket and corresponds to the counterweight rod. The channel steel bracket is installed through a height adjustment support. The reciprocating limit switch assembly includes a toggle switch and a switch bracket. The toggle switch is installed on the steel profile bracket through the switch bracket. The intermediate bracket assembly includes a steel profile bracket, a positioning guide wheel, a weighing roller, and a height adjustment support. The positioning guide wheel and the weighing roller are set on the steel profile bracket. The return line tail assembly includes a channel steel wheel bracket and a height adjustment support. The channel steel wheel bracket is installed through the height adjustment support. The chain is linked with the automatic hook-and-unhook assembly and reciprocates along the path of each assembly.

[0006] Preferably, the double-ear hooks of the automatic hook-and-unhook assembly are welded and fixed to the counterweight rod, and the end of the counterweight rod away from the double-ear hooks extends to the top of the channel steel roller. The channel steel roller is mounted on the channel steel bracket by means of bearing rotation.

[0007] Preferably, the double-ear hooks of the automatic hook-and-unhook assembly are welded and fixed to the counterweight rod, and the end of the counterweight rod away from the double-ear hooks extends to the top of the channel steel roller. The channel steel roller is mounted on the channel steel bracket by means of bearing rotation.

[0008] Preferably, the height adjustment support structure of the return line head assembly, automatic hook-and-unhook assembly, intermediate bracket assembly and return line tail assembly is the same, all including a screw and a nut, one end of the screw is fixed to the corresponding bracket, and the other end is connected to the foundation through the nut.

[0009] Preferably, the double-ear hook of the automatic hook-and-unhook assembly is arc-shaped, and the inner side of the arc is provided with anti-slip texture.

[0010] Preferably, the surface of the channel steel roller of the automatic hook-and-unhook assembly is an arc-shaped concave surface, which is adapted to the outer circumferential surface of the counterweight rod.

[0011] Preferably, the height of the switch bracket of the reciprocating limit switch assembly is adjustable, and the trigger end of the toggle switch corresponds to the reciprocating motion path of the chain.

[0012] Beneficial effects

[0013] This invention provides a segmentation method for the return line of a rare earth calcination tunnel kiln. Compared with the prior art, it has the following advantages:

[0014] 1. The return line of this rare earth calcination tunnel kiln is segmented. The automatic hook-and-unhook assembly achieves automatic hook-and-unhook operation without power by means of the counterweight rod's own weight. No additional power device is required, which simplifies the structure and reduces the risk of failure. It adapts to the reciprocating motion rhythm of the chain, ensures the continuous and stable forward movement of the trolley, and improves the reliability and economy of the equipment operation.

[0015] 2. The rare earth calcination tunnel kiln has a segmented return line. Each component can be flexibly adjusted in height through height-adjustable supports. It can be precisely adapted to actual working conditions such as site flatness and trolley height, reducing the flatness requirements of the fixed foundation and enhancing the installation adaptability and practicality of the equipment in different production scenarios. Attached Figure Description

[0016] 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 or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the external structure of this utility model;

[0018] Figure 2This is a three-dimensional structural view of the return line head assembly and the return limit switch assembly of this utility model;

[0019] Figure 3 This is a three-dimensional view of the overall structure of the automatic hook-and-unhook assembly and the intermediate bracket assembly of this utility model;

[0020] Figure 4 This is a three-dimensional view of the overall structure of the return line tail assembly of this utility model.

[0021] In the diagram: 1. Head assembly of return line; 2. Back-and-forth limit switch assembly; 3. Automatic hook-and-unhook assembly; 4. Intermediate bracket assembly; 5. Tail assembly of return line. Detailed Implementation

[0022] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," 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 this application and simplifying the description, and 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 application. The terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0023] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1 to 4This application provides a segmented return line for a rare earth calcination tunnel kiln, comprising a return line head assembly 1, a return limit switch assembly 2, an automatic hook-and-unhook assembly 3, an intermediate bracket assembly 4, and a return line tail assembly 5, arranged sequentially. The return line head assembly 1 includes a cycloidal pin reducer motor, a sprocket, a chain, a height adjustment support, and a steel profile bracket. The cycloidal pin reducer motor is supported by the steel profile bracket, the sprocket is connected to the output shaft of the cycloidal pin reducer motor, and the chain meshes with the sprocket. The automatic hook-and-unhook assembly... Component 3 includes a double-ear hook, a counterweight rod, a channel steel roller, a channel steel bracket, and a height adjustment support. The double-ear hook is fixedly connected to the counterweight rod. The channel steel roller is mounted on the channel steel bracket and corresponds to the counterweight rod. The channel steel bracket is installed via the height adjustment support. The reciprocating limit switch assembly 2 includes a toggle switch and a switch bracket. The toggle switch is mounted on the steel profile bracket via the switch bracket. The intermediate bracket assembly 4 includes a steel profile bracket, a positioning guide wheel, a weighing roller, and a height adjustment support. The positioning guide wheel and the weighing roller... The wheel is mounted on a steel profile bracket; the return line tail assembly 5 includes a channel steel wheel bracket and a height adjustment support, with the channel steel wheel bracket installed via the height adjustment support; the chain is linked to the automatic hook-and-unhook assembly 3 and reciprocates along the path of each component; the double-ear hooks of the automatic hook-and-unhook assembly 3 are welded and fixed to the counterweight rod, with the end of the counterweight rod away from the double-ear hooks extending above the channel steel roller; the channel steel roller is mounted on the channel steel bracket via bearings; the return line head assembly 1, the automatic hook-and-unhook assembly 3, and the intermediate bracket assembly are also included. The height adjustment support structure of component 4 and return line tail component 5 is the same, both including a screw and a nut. One end of the screw is fixed to the corresponding bracket, and the other end is connected to the foundation through the nut. The hook part of the double ear hook of the automatic hook-and-unhook component 3 is arc-shaped, and the inner side of the arc is provided with anti-slip texture. The surface of the channel steel roller of the automatic hook-and-unhook component 3 is an arc-shaped concave surface, which is adapted to the outer circumference of the counterweight rod. The height of the switch bracket of the reciprocating limit switch component 2 is adjustable, and the trigger end of the toggle switch corresponds to the reciprocating motion path of the chain.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] Working principle: The return line head assembly 1 serves as the power source. Its cycloidal pin reducer motor drives the chain to reciprocate through the sprocket, providing power for the overall operation. When the chain moves forward, the double-ear hooks of the automatic hook-and-unhook assembly 3 remain raised under the weight of the counterweight rod, accurately hooking the force shaft of the trolley. As the chain moves forward, it drives the trolley to move forward synchronously for a certain distance.

[0027] When the chain completes its forward stroke and begins to move backward, the counterweight of the automatic hook-and-unhook assembly 3 will contact the channel steel roller on the path. Under the backward traction of the chain and the support of the channel steel roller, the counterweight is pressed down, which in turn drives the double-ear hook to rotate and disengage from the force shaft of the trolley, thus achieving disengagement. The chain continues to move backward, and when the counterweight disengages from the channel steel roller, it resets under its own weight, and the double-ear hook also returns to the raised state, preparing for the next hooking.

[0028] The reciprocating limit switch assembly 2 is installed in a suitable position. When the chain reciprocates to the limit position, it will trigger the toggle switch of the reciprocating limit switch assembly 2, control the cycloidal pin reducer motor to reverse, thereby limiting the reciprocating range of the chain and preventing overtravel.

[0029] The intermediate bracket assembly 4 is distributed along the chain path. Its positioning guide wheel plays a lateral limiting role on the chain to prevent the chain from deviating, while the weighing roller supports the chain and reduces the resistance of the chain movement through rolling friction to ensure smooth chain operation.

[0030] The return line tail assembly 5 supports the tail of the chain, and together with the intermediate bracket assembly 4 and the return line head assembly 1, it keeps the chain in a stable posture throughout the reciprocating motion, avoiding problems such as chain sagging that affect the running accuracy. Through the coordinated work of the return line head assembly 1, the reciprocating limit switch assembly 2, the automatic hook and unhook assembly 3, the intermediate bracket assembly 4 and the return line tail assembly 5, the trolley can move forward continuously with the reciprocating motion of the chain.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A segmented turnaround line for a rare earth calcination tunnel kiln, characterized in that, The assembly includes, in sequence, a return line head assembly (1), a return limit switch assembly (2), an automatic hook-and-unhook assembly (3), an intermediate bracket assembly (4), and a return line tail assembly (5). The return line head assembly (1) includes a cycloidal pin reducer motor, a sprocket, a chain, a height adjustment bracket, and a steel profile bracket. The cycloidal pin reducer motor is supported by the steel profile bracket, the sprocket is connected to the output shaft of the cycloidal pin reducer motor, and the chain meshes with the sprocket. The automatic hook-and-unhook assembly (3) includes a double-ear hook, a counterweight rod, a channel steel roller, a channel steel bracket, and a height adjustment bracket. The double-ear hook is fixedly connected to the counterweight rod, and the channel steel roller is set with... The channel steel support is mounted on the channel steel support and corresponds to the counterweight rod. The channel steel support is installed through the height adjustment bracket. The reciprocating limit switch assembly (2) includes a toggle limit switch and a switch bracket. The toggle limit switch is mounted on the steel profile support through the switch bracket. The intermediate bracket assembly (4) includes a steel profile support, a positioning guide wheel, a weighing roller and a height adjustment bracket. The positioning guide wheel and the weighing roller are set on the steel profile support. The return line tail assembly (5) includes a channel steel wheel bracket and a height adjustment bracket. The channel steel wheel bracket is installed through the height adjustment bracket. The chain is linked with the automatic hook and unhook assembly (3) and reciprocates along the path of each assembly.

2. The segmentation of the return line in a rare earth calcination tunnel kiln according to claim 1, characterized in that, The double-ear hooks of the automatic hook-and-unhook assembly (3) are welded and fixed to the counterweight rod. The end of the counterweight rod away from the double-ear hooks extends to the top of the channel steel roller. The channel steel roller is mounted on the channel steel bracket by rotating through the bearing.

3. The segmentation of the return line in a rare earth calcination tunnel kiln according to claim 1, characterized in that, The height adjustment support structures of the return line head assembly (1), automatic hook and unhook assembly (3), intermediate bracket assembly (4) and return line tail assembly (5) are the same, all including a screw and a nut. One end of the screw is fixed to the corresponding bracket, and the other end is connected to the foundation through the nut.

4. The segmentation of the return line in a rare earth calcination tunnel kiln according to claim 1, characterized in that, The automatic hook-and-unhook assembly (3) has a double-ear hook with an arc shape and an anti-slip texture on the inner side of the arc.

5. The segmentation of the return line in a rare earth calcination tunnel kiln according to claim 1, characterized in that, The surface of the channel steel roller of the automatic hook-and-unhook assembly (3) is an arc-shaped concave surface, which is adapted to the outer circumferential surface of the counterweight rod.

6. The segmentation of the return line in a rare earth calcination tunnel kiln according to claim 1, characterized in that, The height of the switch bracket of the reciprocating limit switch assembly (2) is adjustable, and the trigger end of the toggle switch corresponds to the reciprocating motion path of the chain.

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