A guide device and a method for automatically adjusting a gap

Abstract

The application relates to a kind of automatic adjustment gap guiding device and adjustment method, wherein guiding device includes including outer cylinder, the inner wall of which is provided with at least one adjusting track, adjusting track includes first track and second track, the thickness of first track is less than the thickness of second track;Inner cylinder is coaxially arranged with outer cylinder;At least one adjusting module is arranged at the top of inner cylinder;Adjusting module includes rotary drive source, square nut, screw, base, sliding seat and moving element;Rotary drive source is fixed to one side of base, and rotary drive source has rotating shaft, rotating shaft is provided with threaded connection part, square nut and sliding seat are both installed in base;Rotating shaft is connected with screw shank, threaded connection part is threadedly connected with square nut;The head of screw is installed in sliding seat;Sliding seat is connected with moving element.The application is convenient for adjusting the gap between guiding wheel or sliding block and track.

Description

Technical Field

[0001] This invention relates to the field of guiding device technology, and in particular to a guiding device and method for automatically adjusting gaps. Background Technology

[0002] Guide wheels or guide sliders are frequently used to guide the movement of equipment during lifting or lowering. A proper clearance must typically be maintained between the guide wheel / slider and the track. As the guide wheel / slider wears down, this clearance gradually widens, exceeding the normal value. When the clearance is too large, it can cause excessive lateral swaying or tilting of the equipment. Therefore, failure to adjust in time will affect the normal operation of the equipment, especially for equipment with high positioning requirements.

[0003] Normally, the clearance of the guide wheels is checked and adjusted by maintenance personnel during equipment maintenance. Additionally, in some cases, the installation positions of the guide wheels or guide sliders are not easily accessible, affecting inspection and adjustment.

[0004] As can be seen from the above, the shortcomings of the existing technology are as follows: manual adjustment of the guide wheel clearance is inefficient, has poor accuracy, or cannot be done manually, which affects the operation of the equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention discloses a guide device for automatically adjusting gaps and its usage method.

[0006] The technical solution adopted in this invention is as follows:

[0007] A guide device for automatically adjusting gaps, comprising:

[0008] The outer cylinder has at least one adjusting track on its inner wall. The adjusting track includes a first track and a second track, and the thickness of the first track is less than the thickness of the second track.

[0009] The inner cylinder is coaxially arranged with the outer cylinder;

[0010] At least one adjustment module is disposed at the top of the inner cylinder; the adjustment module includes a rotary drive source, a square nut, a screw, a base, a sliding seat, and a moving element; the rotary drive source is fixed to one side of the base and has a rotary shaft with a threaded connection portion; the square nut and the sliding seat are both installed inside the base; the rotary shaft is connected to the screw rod portion, and the threaded connection portion is threadedly connected to the square nut; the head of the screw is installed on the sliding seat; the sliding seat is connected to the moving element.

[0011] The rotary drive source drives the rotary shaft to rotate along the thread tightening direction of the threaded connection. The rotary shaft tightens and squeezes the screw, and the screw pushes the sliding seat to move away from the square nut, reducing the distance between the moving element and the adjusting track.

[0012] In some embodiments, the rotational drive source is an electric motor, which includes a stator and a rotor arranged concentrically, and the rotational shaft passes through the rotor.

[0013] In some embodiments, the adjustment module further includes at least one torque adjustment component, the torque adjustment component including connected balls and an elastic element, the rotating shaft having a radial groove for fitting the balls, and a channel being formed along the radial direction of the rotor, the elastic element being installed in the channel.

[0014] In some embodiments, the elastic element is a compression spring.

[0015] In some embodiments, the moving element is a guide wheel or a slider.

[0016] In some embodiments, the number of adjustment tracks is two, the two adjustment tracks are arranged opposite to each other, the distance between the two first tracks is L, and the distance between the two second tracks is L-2t, where t is a preset value.

[0017] In some embodiments, the thickness changes of the first track and the second track are smooth transitions.

[0018] In some embodiments, the base includes a top plate, a bottom plate, and a set of side plates, the side plates connecting the top plate and the bottom plate, the bottom plate being fixed to the top of the inner cylinder, and the top plate, the bottom plate, and the set of side plates forming an installation space for the square nut and the sliding seat.

[0019] In some embodiments, a centering module is further included. The centering module includes a centering positioning block and a centering positioning cone. The centering positioning block is fixed to the outer cylinder and has a positioning notch. The centering positioning cone is fixed to the top of the inner cylinder. After the inner cylinder is raised by a preset distance, the centering positioning cone is inserted into the positioning notch of the centering positioning block.

[0020] An automatic gap adjustment method, utilizing the automatic gap adjustment guide device as described above, includes the following steps:

[0021] The rotary drive source drives the rotary shaft to rotate along the thread tightening direction of the threaded connection. The rotary shaft tightens and squeezes the screw. The screw pushes the sliding seat to move away from the square nut, reducing the distance between the moving element and the adjusting rail until the moving element abuts against the second rail of the adjusting rail.

[0022] At this point, the gap between the moving element and the adjusting track is adjusted, and the inner cylinder descends to the first track of the adjusting track.

[0023] The technical solution of the present invention has the following advantages compared with the prior art:

[0024] The automatic gap adjustment guide device of the present invention solves the problem that the gap between the guide wheel or guide slider and the track cannot be adjusted manually. It has high adjustment efficiency and high precision, improves the guiding reliability of the guide device during equipment operation, and ensures the normal operation of the equipment. Attached Figure Description

[0025] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the guide device for automatically adjusting the gap in this invention.

[0027] Figure 2 This is a front view of the guide device for automatically adjusting the gap in this invention.

[0028] Figure 3 This is a schematic diagram of the outer cylinder in this invention.

[0029] Figure 4 This is the front view of the outer cylinder in this invention.

[0030] Figure 5 This is a schematic diagram of the inner cylinder structure in this invention.

[0031] Figure 6 This is a schematic diagram of the adjustment module in this invention.

[0032] Figure 7 This is a cross-sectional view of the adjustment module in this invention.

[0033] Figure 8 This is an exploded view of the adjustment module in this invention.

[0034] Explanation of reference numerals in the accompanying drawings: 1. Outer cylinder; 2. Inner cylinder; 3. Adjustment track; 301. First track; 302. Second track; 4. Adjustment module; 401. Rotation drive source; 402. Rotation shaft; 403. Torque adjustment assembly; 404. Square nut; 405. Screw; 406. Base; 407. Sliding seat; 408. Moving element; 5. Centering positioning block; 6. Centering positioning cone. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0036] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present invention. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0037] Research has found that manually adjusting the gap of the guide wheels is currently impossible or inefficient, resulting in poor precision and impacting equipment operation.

[0038] To address the above problems, the present invention provides a guide device and adjustment method for dynamically adjusting the clearance. Example 1:

[0039] Combination Figures 1-4 An automatic gap-adjusting guide device includes an outer cylinder 1, an inner cylinder 2, and at least one adjusting module 4.

[0040] Among them, combined Figure 3 and Figure 4 The outer cylinder 1 and the inner cylinder 2 are coaxially arranged; the inner wall of the outer cylinder 1 is provided with at least one adjusting track 3, which is arranged along the height direction of the outer cylinder 1; wherein, the adjusting track 3 includes a first track 301 and a second track 302, and the thickness of the first track 301 is less than the thickness of the second track 302.

[0041] Specifically, the adjustment modules 4 are generally used in pairs, but can also be used individually. Taking paired use as an example, several adjustment modules 4 can be installed on the internal guide tube. The following embodiment is applied inside the guide tube, but it can also be used in other operating mechanisms, etc.

[0042] In this embodiment, the inner wall of the outer cylinder 1 is provided with two adjustment rails 3, and the two adjustment rails 3 are arranged opposite to each other on different mounting surfaces of the outer cylinder 1.

[0043] Furthermore, the two adjustment tracks 3 are arranged opposite each other, the distance between the two first tracks 301 is L, and the distance between the two second tracks 302 is L-2t, where t is a preset value and the gap between the moving element 408 and the adjustment track 3 is set according to actual needs.

[0044] The thickness change of the first track 301 and the second track 302 is a smooth transition, that is, there is an arc connecting curve at the thickness change of the first track 301 and the second track 302.

[0045] Correspondingly, there are two adjustment modules 4, which are located at the top of the inner cylinder 2. Preferably, the two adjustment modules 4 are symmetrically arranged about the center line of the inner cylinder 2 to ensure that the inner cylinder 2 does not tilt during the rising or falling process. It should be noted that the rising or falling of the inner cylinder 2 relies on an external power source, such as using wire rope hoisting, and the hoisting mechanism can be a crane.

[0046] Combination Figures 6-8 Each adjustment module 4 includes a rotary drive source 401, a square nut 404, a screw 405, a base 406, a sliding seat 407, and a moving element 408.

[0047] Specifically, the rotary drive source 401 is fixed to one side of the base 406, and the rotary drive source 401 has a rotary shaft 402. The rotary shaft 402 is provided with a threaded connection part. The square nut 404 and the sliding seat 407 are both installed in the base 406. The sliding seat 407 can slide relative to the square nut 404 in the base 406. The rotary shaft 402 is connected to the screw part of the screw 405, and the threaded connection part is threadedly connected to the square nut 404. The head of the screw 405 is installed on the sliding seat 407. The sliding seat 407 is connected to the moving element 408.

[0048] Generally, the rotary drive source 401 is an electric motor, which includes a stator 4011 and a rotor 4012 arranged concentrically, with a rotating shaft 402 passing through the rotor 4012. Both the stator 4011 and the rotor 4012 consist of an iron core and windings. The iron core is made of laminated silicon steel sheet. The windings are made of thick copper wire, the conductors are covered with insulating material, and then coated with epoxy resin, and the windings are wound around the iron core according to current standards and methods. When they are both in operation, current flows into the stator 4011 and the rotor 4012 under the action of the coils. A magnetic field is generated on the silicon steel sheet, which drives the rotor 4012 to rotate.

[0049] Preferably, the axes of the rotating shaft 402, square nut 404, screw 405, base 406, sliding seat 407, and moving element 408 are all on the same horizontal line. The moving element 408 is a guide wheel (e.g., Figure 8 (as shown) or slider (not shown in the figure).

[0050] The base 406 can be a modular component, for example, such as Figure 8 As shown, the base 406 includes a top plate, a bottom plate, and a set of side plates. The side plates are vertically arranged between the top plate and the bottom plate, forming a cuboid component. The connection between the top plate and the side plates can be achieved by snap-fit ​​and / or bolt connection, facilitating later maintenance and repair of the adjustment module 4. The connection between the side plates and the bottom plate can be achieved by snap-fit, bolt connection, or welding. Preferably, to ensure the firmness of the base 410, a protrusion is provided at the edge of the top plate, and a groove is provided at the corresponding position of the side plate, allowing the protrusion and the groove to snap together. Then, multiple bolts are tightened from the top plate to the side plate to complete the fixed connection between the top plate and the side plate.

[0051] The sliding seat 407 includes a first sliding plate and a second sliding plate arranged in parallel. A connecting plate is provided on the same side of the first sliding plate and the second sliding plate to connect them. When the moving element 408 is a guide wheel, both the first sliding plate and the second sliding plate have shaft holes for connecting with the axle of the guide wheel. When the moving element 408 is a guide slider, a rectangular guide slider is provided on the side of the first sliding plate and the second sliding plate where the connecting plate is not provided.

[0052] The working principle of this invention is as follows:

[0053] When the inner cylinder 2 is raised to the second track 302 of the adjustment track 3, the rotary drive source 401 is activated. The rotary drive source 401 drives the rotary shaft 402 to rotate along the thread tightening direction of the threaded connection. The rotary shaft 402 tightens and squeezes the screw 405. The screw 405 pushes the sliding seat 407 to move away from the square nut 404, reducing the distance between the moving element 408 and the adjustment track 3.

[0054] At this point, the gap between the moving element 408 and the adjusting track 3 is adjusted, and the inner cylinder 2 descends to the first track 301 of the adjusting track 3. Example 2:

[0055] Based on Embodiment 1, the guide device for automatically adjusting the gap further includes a torque adjustment component 403. The torque adjustment component 403 includes a ball and an elastic element. The torque adjustment component 403 includes a ball and an elastic element connected together. The rotating shaft 402 has a radial groove for fitting the ball and a channel is opened along the radial direction of the rotor 4012. The elastic element is installed in the channel. Optionally, the elastic element is a compression spring.

[0056] When the moving element 408 and the adjusting rail 3 can no longer move, but the rotating shaft 402 is still rotating in the direction of thread tightening of the threaded connection, the elastic element of the torque adjusting component 403 pushes out the ball, and the ball of the torque adjusting component 407 causes slippage between the rotating shaft 402 and the rotor 4012 to prevent damage to the guide device. Example 3:

[0057] Based on Example 1 or Example 2, combined with Figures 3-5 To ensure that the outer cylinder 1 and inner cylinder 2 are aligned after adjusting the gap between the moving element 408 and the adjusting track 3, i.e., to prevent misalignment between the outer cylinder 1 and inner cylinder 2, the guide device for automatically adjusting the gap also includes a centering module. The centering module includes a centering positioning block 5 and a centering positioning cone 6. The centering positioning block 5 is fixed to the outer cylinder 1 and has a positioning notch. The centering positioning cone 6 is fixed to the top of the inner cylinder 2. After the inner cylinder 2 is raised a preset distance, the centering positioning cone 6 is inserted into the positioning notch of the centering positioning block 5. Preferably, the shape of the positioning notch is the same as the shape of the centering positioning cone 6.

[0058] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A guide device for automatically adjusting gap, characterized in that: include: The outer cylinder (1) has at least one adjusting track (3) on its inner wall. The adjusting track (3) includes a first track (301) and a second track (302). The thickness of the first track (301) is less than the thickness of the second track (302). There are two first tracks (301) and two second tracks (302). The two first tracks (301) are arranged opposite each other, and the two second tracks (302) are arranged opposite each other. The distance between the two first tracks (301) is L, and the distance between the two second tracks (302) is L-2t, where t is a preset value and the gap between the moving element (408) and the adjusting track (3) is set according to actual needs. The inner cylinder (2) is coaxially arranged with the outer cylinder (1); At least one adjustment module (4) is disposed on the top of the inner cylinder (2); the adjustment module (4) includes a rotary drive source (401), a square nut (404), a screw (405), a base (406), a sliding seat (407), and a moving element (408); the rotary drive source (401) is fixed to one side of the base (406), and the rotary drive source (401) has a rotating shaft (402), the rotating shaft (402) is provided with a threaded connection part, the square nut (404) and the sliding seat (407) are both installed in the base (406); the rotating shaft (402) is connected to the screw (405) and the threaded connection part is threadedly connected to the square nut (404); the head of the screw (405) is installed on the sliding seat (407); the sliding seat (407) is connected to the moving element (408); The rotary drive source (401) drives the rotary shaft (402) to rotate along the thread tightening direction of the threaded connection. The rotary shaft (402) tightens and squeezes the screw (405). The screw (405) pushes the sliding seat (407) to move away from the square nut (404), reducing the distance between the moving element (408) and the adjusting track (3). The centering module includes a centering positioning block (5) and a centering positioning cone (6). The centering positioning block (5) is fixed to the outer cylinder (1) and has a positioning notch. The centering positioning cone (6) is fixed to the top of the inner cylinder (2). After the inner cylinder (2) is raised by a preset distance, the centering positioning cone (6) is inserted into the positioning notch of the centering positioning block (5).

2. The guide device for automatically adjusting the gap according to claim 1, characterized in that: The rotary drive source (401) is a motor, which includes a stator (4011) and a rotor (4012) arranged concentrically, and the rotating shaft (402) passes through the rotor (4012).

3. The guide device for automatically adjusting the gap according to claim 2, characterized in that: The adjustment module (4) further includes at least one torque adjustment component (403), which includes connected balls and an elastic element. The rotating shaft (402) has a radial groove for fitting the balls and a channel is formed along the radial direction of the rotor (4012). The elastic element is installed in the channel.

4. The guide device for automatically adjusting the gap according to claim 3, characterized in that: The elastic element is a compression spring.

5. The guide device for automatically adjusting the gap according to claim 1, characterized in that: The moving element (408) is a guide wheel or a slider.

6. The guide device for automatically adjusting the gap according to claim 1, characterized in that: The thickness changes of the first track (301) and the second track (302) are smooth transitions.

7. The guide device for automatically adjusting the gap according to claim 1, characterized in that: The base (406) includes a top plate, a bottom plate and a set of side plates. The side plates connect the top plate and the bottom plate. The bottom plate is fixed to the top of the inner cylinder (2). The top plate, the bottom plate and the set of side plates form the installation space for the square nut (404) and the sliding seat (407).

8. A method for automatically adjusting a gap, comprising adjusting using a guide device for automatically adjusting a gap as described in any one of claims 1-7, characterized in that... Includes the following steps: The rotary drive source (401) drives the rotary shaft (402) to rotate along the thread tightening direction of the threaded connection. The rotary shaft (402) tightens and squeezes the screw (405). The screw (405) pushes the sliding seat (407) to move away from the square nut (404), reducing the distance between the moving element (408) and the adjusting track (3) until the moving element (408) abuts against the second track (302) of the adjusting track (3). At this time, the gap between the moving element (408) and the adjusting track (3) is adjusted, and the inner cylinder (2) descends to the first track (301) of the adjusting track (3).

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