A guide wheel and tensioning assembly station

Abstract

The utility model relates to plane grinding equipment technical field provides a guide wheel and tight assembly platform, include, be equipped with the guide rail on the platform, at least be provided with two first moving plates on the guide rail, each first moving plate all is equipped with a second moving plate symmetrically in, the truss is inserted in the recess of second moving plate, the trusk engages with left and right screw rod, one end of trusk is hinged and is used for the protective cover of wrapping in the edge of guide wheel, be equipped with the pawl for limiting the rotation angle of protective cover on the trusk, the pawl one -way rubs against the rotation part of protective cover, the pawl and trusk hinged place are equipped with torsion spring, the utility model overcomes the deficiency of prior art, and the design is reasonable, and the structure is compact, through the nesting design of first moving plate and second moving plate, cooperate left and right screw rod drive, realize guide wheel both sides synchronous operation, avoid turning over adjustment, promote assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of guide wheel assembly technology, specifically to a guide wheel and a tensioning assembly table. Background Technology

[0002] The idler wheel of an excavator, as an important component of the excavator, mainly plays a guiding and positioning role for the tracks. Its accuracy and stability directly affect the overall performance of the excavator. In the production assembly process, most existing assembly tables only support single-sided operation. After assembling one side, the idler wheel needs to be flipped before the other side can be assembled, resulting in low efficiency and easy positioning errors.

[0003] Secondly, the lack of a reliable anti-loosening design makes the guide wheel prone to displacement or even falling off during assembly due to vibration or external force, affecting assembly accuracy and safety; some equipment uses a rigid fixing method, but cannot adapt to guide wheels of different sizes, resulting in poor versatility.

[0004] During assembly, the edges of the guide wheel are easily bumped, but most existing equipment does not have a protective mechanism or uses a fixed cover that cannot be adjusted, resulting in limited protection. Designed for specific sizes, it cannot flexibly adapt to guide wheels of different diameters or widths, requiring frequent tooling changes, which increases costs and time consumption.

[0005] In response to the aforementioned problems, we propose a guide wheel and a tensioning assembly table. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a guide wheel and a tensioning assembly table to solve the above-mentioned problems in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A guide wheel and tensioning assembly table includes a platform, a guide rail on the platform, at least two first movable plates on the guide rail, and a second movable plate symmetrically arranged on each of the first movable plates.

[0009] Each of the first movable plates has at least two sliders at its bottom that slide in cooperation with the guide rail.

[0010] Each of the first and second movable plates has two grooves on its surface, and each of the first and second movable plates is equipped with left and right lead screws.

[0011] One end of the second movable plate is inserted into the groove of the first movable plate and engages with the left and right lead screws.

[0012] A truss is inserted into the groove of the second movable plate. The truss meshes with the left and right lead screws. One end of the truss is hinged to a protective cover for wrapping around the edge of the guide wheel.

[0013] The truss is equipped with a pawl for limiting the rotation angle of the protective cover. The pawl abuts against the rotating part of the protective cover in one direction. A torsion spring is provided at the hinge point between the pawl and the truss.

[0014] Furthermore, the guide rail is a closed-loop spiral guide rail, and the slider is hinged to the bottom of the first moving plate; the slider is placed in the guide groove of the spiral guide rail.

[0015] Furthermore, the two grooves on the surfaces of the first and second movable plates are symmetrically arranged, and the left and right lead screws are movably connected to the corresponding first or second movable plate through bearings or bushings.

[0016] Furthermore, one end of the left and right lead screws in the first movable plate is connected to a first drive motor, and the first drive motor is mounted on the first movable plate; one end of the left and right lead screws in the second movable plate is connected to a second drive motor, and the second drive motor is mounted on the second movable plate.

[0017] Furthermore, the second movable plate is arranged perpendicular to the first movable plate, and the second movable plate and the groove of the first movable plate are slidably engaged.

[0018] Furthermore, the truss is perpendicular to the second movable plate, and the truss slides into the groove of the first movable plate.

[0019] This utility model provides a guide wheel and a tensioning assembly table. It has the following advantages: through the nested design of the first and second moving plates, combined with left and right lead screw drives, synchronous operation of both sides of the guide wheel is achieved, avoiding flipping adjustments and improving assembly efficiency;

[0020] A pawl with a torsion spring is installed at the end of the truss so that the protective cover can only rotate in one direction, preventing the protective cover from loosening in the opposite direction when the guide wheel is pressed down, and ensuring clamping stability;

[0021] The combination of sliders, grooves, and left and right lead screws enables flexible adjustment in multiple directions, adapts to guide wheels of different sizes, and expands the versatility of the equipment.

[0022] The protective cover moves with the truss and wraps around the edge of the guide wheel to prevent assembly collisions, while the pawl limits its rotation angle, balancing protection and ease of operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2This is a schematic diagram of the main view of this utility model;

[0025] Figure 3 This is a schematic diagram of the first movable plate of this utility model;

[0026] Figure 4 This is a half-sectional view of the first movable plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the main view of the first movable plate of this utility model;

[0028] Figure 6 This is a partially enlarged schematic diagram of the ratchet pawl of this utility model;

[0029] In the diagram: 1. Platform; 2. Guide rail; 3. First moving plate; 4. Second moving plate; 5. Pawl; 100. Guide wheel; 41. Second drive motor; 42. Truss; 43. Protective cover; 31. Slider; 32. Groove; 33. First drive motor; 34. Left and right lead screws; 51. Torsion spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] See attached document Figures 1-6 ,

[0032] In this embodiment, a guide wheel 100 and a tensioning assembly table include a platform 1, on which a guide rail 2 is provided. The guide rail 2 is a closed-loop spiral guide rail 2, which ensures that the first moving plate 3 can return to its original position after running one revolution along the guide rail 2. At least two first moving plates 3 are provided on the guide rail 2, and a second moving plate 4 is symmetrically provided on each first moving plate 3.

[0033] Each of the first movable plates 3 has at least two sliders 31 at its bottom that slide in cooperation with the guide rail 2. The sliders 31 are hinged to the bottom of the first movable plate 3. The sliders 31 are placed in the guide groove of the spiral guide rail 2.

[0034] Each of the first moving plate 3 and the second moving plate 4 has two grooves 32 on its surface, and the two grooves 32 on the surface of the first moving plate 3 and the second moving plate 4 are symmetrically arranged; each of the first moving plate 3 and the second moving plate 4 is provided with a left and right lead screw 34, and the left and right lead screw 34 are movably connected to the corresponding first moving plate 3 or second moving plate 4 through bearings or bushings.

[0035] One end of the left and right lead screws 34 in the first moving plate 3 is connected to a first drive motor 33, and the first drive motor 33 is mounted on the first moving plate 3; one end of the left and right lead screws 34 in the second moving plate 4 is connected to a second drive motor 41, and the second drive motor 41 is mounted on the second moving plate 4; the second moving plate 4 is set perpendicular to the first moving plate 3, and the second moving plate 4 slides in conjunction with the groove 32 of the first moving plate 3.

[0036] One end of the second movable plate 4 is inserted into the groove 32 of the first movable plate 3 and engages with the left and right lead screws 34. Rotating the left and right lead screws 34 can drive the two second movable plates 4 to move towards each other or away from each other in the groove 32.

[0037] A truss 42 is inserted into the groove 32 of the second movable plate 4. The truss 42 is perpendicular to the second movable plate 4 and slides with the groove 32 of the first movable plate 3. The truss 42 meshes with the left and right lead screws 34, so that rotating the left and right lead screws 34 can drive the two trusses 42 to move towards or away from each other in the groove 32. One end of the truss 42 is hinged to a protective cover 43 for wrapping around the edge of the guide wheel 100.

[0038] The truss 42 is provided with a pawl 5 for limiting the rotation angle of the protective cover 43. The pawl 5 abuts against the rotating part of the protective cover 43 in one direction, thereby limiting the rotation angle of the protective cover 43. A torsion spring 51 is provided at the hinge of the pawl 5 and the truss 42.

[0039] Working principle: The first moving plate 3 slides on the loop guide rail 2 via the bottom hinged slider 31, and is driven to the working starting position by the operator or automatic control system;

[0040] The first drive motor 33 starts, driving the left and right lead screws 34 in the first moving plate 3 to rotate, driving the two second moving plates 4 to move towards each other in the groove 32 of the first moving plate 3 to the initial distance;

[0041] The second drive motor 41 starts and drives the left and right lead screws 34 in the second moving plate 4 to rotate; the left and right lead screws 34 drive the two trusses 42 to move towards each other in the groove 32 of the second moving plate 4, and adjust to the appropriate spacing of the guide wheel 100 to be assembled.

[0042] The protective cover 43 maintains its initial angle under the action of the torsion spring 51, and the pawl 5 is in the pre-limited state; the guide wheel 100 is placed between the two sets of opposing protective covers 43;

[0043] The second drive motor 41 rotates in reverse, causing the two trusses 42 to move the protective cover 43 towards each other. After the protective cover 43 contacts the edge of the guide wheel 100, it undergoes adaptive deflection under pressure. The pawl 5 is unidirectionally limited by the torsion spring 51 to prevent the protective cover 43 from excessively rotating and causing the guide wheel 100 to fall off.

[0044] The first moving plate 3 moves along the loop guide rail 2, driving the clamped and fixed guide wheel 100 to each workstation. When it reaches each workstation, it can achieve precise positioning by fine-tuning the first and second drive motors 41.

[0045] For guide wheels 100 of different sizes: the spacing of the second moving plate 4 is adjusted by the first drive motor 33, and the spacing of the truss 42 is adjusted by the second drive motor 41; the hinge structure of the protective cover 43 automatically adapts to the edge curve of guide wheels 100 of different diameters.

[0046] After the assembly operation is completed, the first moving plate 3 returns to the starting position along the loop guide rail 2, completing one work cycle;

[0047] When the guide wheel 100 is accidentally pressed down: the protective cover 43 is compressed and tends to rotate; the unidirectional limiting characteristic of the pawl 5 prevents the protective cover 43 from rotating in the opposite direction; and the torsion spring 51 provides elastic cushioning to avoid rigid impact.

[0048] During normal operation: the protective cover 43 can rotate in the forward direction to meet the assembly operation requirements, and the pawl 5 does not interfere with the normal rotation range of the protective cover 43.

[0049] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A guide wheel and tensioning assembly table, comprising a platform, characterized in that: The platform is provided with a guide rail, and at least two first movable plates are provided on the guide rail. Each first movable plate is symmetrically provided with a second movable plate. Each of the first movable plates has at least two sliders at its bottom that slide in cooperation with the guide rail. Each of the first and second movable plates has two grooves on its surface, and each of the first and second movable plates is equipped with left and right lead screws. One end of the second movable plate is inserted into the groove of the first movable plate and engages with the left and right lead screws. A truss is inserted into the groove of the second movable plate. The truss meshes with the left and right lead screws. One end of the truss is hinged to a protective cover for wrapping around the edge of the guide wheel. The truss is equipped with a pawl for limiting the rotation angle of the protective cover. The pawl abuts against the rotating part of the protective cover in one direction. A torsion spring is provided at the hinge point between the pawl and the truss.

2. The guide wheel and tensioning assembly table as described in claim 1, characterized in that: The guide rail is a closed-loop spiral guide rail, and the slider is hinged to the bottom of the first moving plate; the slider is placed in the guide groove of the spiral guide rail.

3. The guide wheel and tensioning assembly table as described in claim 1, characterized in that: The two grooves on the surfaces of the first and second movable plates are symmetrically arranged, and the left and right lead screws are movably connected to the corresponding first or second movable plates through bearings or bushings.

4. The guide wheel and tensioning assembly table as described in claim 1, characterized in that: The first movable plate has a first drive motor connected to one end of the left and right lead screws, and the first drive motor is mounted on the first movable plate; the second movable plate has a second drive motor connected to one end of the left and right lead screws, and the second drive motor is mounted on the second movable plate.

5. The guide wheel and tensioning assembly table as described in claim 1, characterized in that: The second movable plate is arranged perpendicular to the first movable plate, and the second movable plate and the groove of the first movable plate are slidably engaged.

6. The guide wheel and tensioning assembly table as described in claim 1, characterized in that: The truss is perpendicular to the second movable plate, and the truss slides into the groove of the first movable plate.

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