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 adjusting method, wherein guiding device includes inner cylinder, outer cylinder, and inner cylinder coaxial arrangement;Its inner wall is equipped with at least one rack and at least one adjusting track installed on different surfaces, rack and adjusting track are arranged along the height direction of outer cylinder;Wherein, adjusting track includes first track and second track, the thickness of first track is less than the thickness of second track;At least one adjusting module is arranged at the top of inner cylinder;Adjusting module includes gear, adjusting bolt, square nut, screw, base, sliding seat and moving element;Gear is sleeved on the head of adjusting bolt, the screw rod part of adjusting bolt and square nut are threadedly connected, the screw rod part of screw passes through the screw rod part of adjusting bolt, the head of screw and sliding seat are fixedly connected, sliding seat is installed in base and slides relative to base, moving element is fixed to one side of sliding seat.The application is convenient for adjusting the gap between guiding wheel or sliding block and track.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of guiding devices, in particular to a guiding device capable of automatically adjusting a gap and a method for adjusting the gap. BACKGROUND

[0002] A guiding wheel or a guiding slider is often used as a guide for the movement of a device during lifting or lowering. Generally, a proper gap is required between the guiding wheel or the guiding slider and a track. As the guiding wheel or the guiding slider wears, the gap gradually increases and exceeds a normal value. When the gap is too large, the device may swing or tilt excessively. Therefore, if the gap is not adjusted in time, the normal operation of the device may be affected, especially for a device with high positioning requirements.

[0003] Generally, the gap of the guiding wheel is checked and adjusted by a maintenance personnel during maintenance of the device. In addition, the installation position of the guiding wheel or the guiding slider is generally not easy to access, which affects the checking and adjustment.

[0004] As known from the above, the existing technology has the following disadvantages: the gap of the guiding wheel is adjusted manually, which is low in efficiency and poor in accuracy, or the gap of the guiding wheel cannot be adjusted manually, which affects the operation of the device. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application discloses a guiding device capable of automatically adjusting a gap and a method for using the guiding device.

[0006] The technical scheme adopted by the present application is as follows:

[0007] A guiding device capable of automatically adjusting a gap comprises:

[0008] an inner cylinder,

[0009] an outer cylinder coaxially arranged with the inner cylinder, an inner wall of the outer cylinder being provided with at least one rack and at least one adjusting track arranged on different surfaces, the rack and the adjusting track being arranged along the height direction of the outer cylinder, wherein the adjusting track comprises a first track and a second track, the thickness of the first track being smaller than the thickness of the second track;

[0010] at least one adjusting module arranged at the top of the inner cylinder, the adjusting module comprising a gear, an adjusting bolt, a square nut, a screw, a base, a sliding seat and a moving element, the gear being sleeved on the head of the adjusting bolt, the threaded rod of the adjusting bolt being threadedly connected with the square nut, the threaded rod of the screw penetrating through the threaded rod of the adjusting bolt, the head of the screw being fixedly connected with the sliding seat, the sliding seat being arranged in the base and sliding relative to the square nut in the base, and the moving element being fixed to one side of the sliding seat;

[0011] When the inner cylinder is lifted by an external force, the inner cylinder drives the gear of the adjusting module to roll along the rack, and when the gear rotates in the tightening direction of the thread of the adjusting bolt, the adjusting bolt is tightened to press the screw, the screw pushes the sliding seat to move away from the square nut, and the distance between the moving element and the adjusting track is reduced.

[0012] In some embodiments, the moving element is a guide wheel or a sliding block.

[0013] In some embodiments, the adjusting module further comprises a ratchet wheel and a pawl, the ratchet wheel is arranged on the head of the adjusting bolt, and the pawl and the inside of the gear are elastically connected, when the gear rotates in the tightening direction of the thread of the adjusting bolt, the pawl is driven to insert into the ratchet wheel to push the ratchet wheel to rotate.

[0014] In some embodiments, the ratchet wheel and the head of the adjusting bolt are integrally formed.

[0015] In some embodiments, the adjusting module further comprises a torque adjusting assembly, the torque adjusting assembly comprises a ball and a second elastic element, the second elastic element is embedded in the head of the adjusting bolt, one end of the second elastic element abuts against the ball, and the ball is arranged between the adjusting bolt and the gear.

[0016] In some embodiments, the adjusting module further comprises an end cover, and the end cover is fixed to one side of the gear.

[0017] In some embodiments, the number of the adjusting tracks is two, the two adjusting tracks are oppositely arranged, the distance between the two first tracks is L, and the distance between the two second tracks is L-2t, wherein t is a preset value.

[0018] In some embodiments, the first track and the second track change in thickness smoothly.

[0019] In some embodiments, a centering module is further included, the centering module comprises a centering positioning block and a centering positioning cone, the centering positioning block is fixed to the outer cylinder and is provided with a positioning notch, and the centering positioning cone is fixed to the top of the inner cylinder, after the inner cylinder is lifted by a preset distance, the centering positioning cone is inserted into the positioning notch of the centering positioning block.

[0020] An adjusting method for automatically adjusting a gap, the adjusting method is performed by using the guide device for automatically adjusting a gap as described above, and comprises the following steps:

[0021] When the inner cylinder is lifted, the inner cylinder drives the gear of the adjusting module to roll along the rack,

[0022] Meanwhile, when the gear rotates in the screwing direction of the adjusting screw, the adjusting screw is screwed to extrude the screw, and the screw pushes the sliding seat to move away from the base, so as to reduce the gap between the moving element and the adjusting track until the second track of the adjusting track abuts against the moving element.

[0023] At this time, the gap adjustment between the moving element and the adjusting track is completed, and the inner cylinder is lowered to the first track of the adjusting track.

[0024] The above technical scheme of the present application has the following advantages compared with the prior art:

[0025] The automatic gap adjustment guiding device provided by the present application solves the problem that the gap between the guiding wheel or the guiding slider and the track cannot be adjusted manually, has high adjustment efficiency and high precision, improves the guiding reliability of the guiding device during equipment operation, and ensures normal operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments of the present application and in combination with the accompanying drawings.

[0027] Figure 1 is a structural schematic view of the automatic gap adjustment guiding device in the present application.

[0028] Figure 2 is a front view of the automatic gap adjustment guiding device in the present application.

[0029] Figure 3 is a structural schematic view of the outer cylinder in the present application.

[0030] Figure 4 is a front view of the outer cylinder in the present application.

[0031] Figure 5 is a structural schematic view of the inner cylinder in the present application.

[0032] Figure 6 is a structural schematic view of the adjusting module in the present application.

[0033] Figure 7 is a sectional view of the adjusting module in the present application.

[0034] Figure 8 is a partial exploded view of the adjusting module in the present application.

[0035] Figure 9 is an exploded view of the adjusting module in the present application.

[0036] The description of the drawings is as follows: 1, outer cylinder; 2, inner cylinder; 3, rack; 4, adjusting module; 401, end cover; 402, first fastening element; 403, gear; 404, adjusting bolt; 405, pawl; 406, first elastic element; 407, torque adjusting assembly; 408, square nut; 409, screw; 410, base; 411, sliding seat; 412, moving element; 5, adjusting track; 501, first track; 502, second track; 6, centering positioning block; 7, centering positioning cone. DETAILED DESCRIPTION

[0037] The present application will be further described below with reference to the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it. The embodiments are not intended to limit the present application.

[0038] The foregoing and other technical contents, features and effects of the present application will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directions mentioned in the following embodiments, such as up, down, left, right, front or back, are only with reference to the directions of the drawings. Therefore, the directions used are used for illustration, not for limitation of the present application. In addition, the same reference numerals represent the same elements in all embodiments.

[0039] Embodiment 1

[0040] In 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.

[0041] In combination Figure 3 And Figure 4 The outer cylinder 1 and the inner cylinder 2 are coaxially arranged; the inner wall is provided with at least one rack 3 and at least one adjusting track 5 mounted on different surfaces, and the rack 3 and the adjusting track 5 are arranged along the height direction of the outer cylinder 1; wherein the adjusting track 5 includes a first track 501 and a second track 502, and the thickness of the first track 501 is less than that of the second track 502.

[0042] Specifically, the adjusting module 4 is generally used in pairs, and can also be used alone. Taking the pair as an example, a plurality of adjusting modules 4 can be installed on the inner guide cylinder. The following embodiments are applied to the guide cylinder, and can also be used in other running mechanisms, etc.

[0043] In this embodiment, the inner wall of the outer cylinder 1 is provided with two racks 3 and two adjusting tracks 5, and the two racks 3 are arranged in parallel on the same mounting surface of the outer cylinder 1, and the two adjusting tracks 5 are arranged on different mounting surfaces of the outer cylinder 1.

[0044] Further, the two adjusting tracks 5 are oppositely arranged, the distance between the two first tracks 501 is L, and the distance between the two second tracks 502 is L-2t, wherein t is a preset value, and the gap between the moving element 412 and the adjusting track 5 is set according to actual needs.

[0045] The thickness change of the first track 501 and the second track 502 is a smooth transition, that is, a circular arc connection curve is arranged at the thickness change of the first track 501 and the second track 502.

[0046] Correspondingly, the number of the adjusting module 4 is two, and the two adjusting modules 4 are arranged at the top of the inner cylinder 2. Preferably, the two adjusting modules 4 are symmetrically arranged about the center line of the inner cylinder 2, so as 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, for example, a steel wire rope hoisting device, and the hoisting mechanism can be a crane.

[0047] In combination Figures 6-9 Each adjusting module 4 comprises an end cover 401, a gear 403, an adjusting bolt 404, a square nut 408, a screw 409, a base 410, a sliding seat 411, and a moving element 412.

[0048] Specifically, the gear 403 has a mounting hole, and the mounting hole is provided with a first step. The gear 403 is sleeved on the head of the adjusting bolt 404. When the screw rod of the adjusting bolt 404 passes through the mounting hole of the gear 403, the head of the adjusting bolt 404 is clamped by the step of the mounting hole, so as to limit the further movement of the adjusting bolt 404.

[0049] The end cover 401 is fixed to one side of the gear 403. Specifically, the end cover 401 is fixed to one side of the gear 403 by at least one first fastening element 402, for example, a bolt, so as to close the mounting hole of the gear 403 and play a dustproof and sealing role. At the same time, the end cover 401 plays a role of axial positioning of the gear 403 and the adjusting bolt 404.

[0050] The screw rod of the adjusting bolt 404 is threadedly connected with the square nut 408. The screw rod of the screw 409 passes through the screw rod of the adjusting bolt 404. The head of the screw 409 is fixedly connected with the sliding seat 411. The sliding seat 411 is installed in the base 410 and slides relative to the base 410. The moving element 412 is fixed to one side of the sliding seat 411.

[0051] Specifically, the axes of the gear 403, the adjusting bolt 404, the square nut 408, the screw 409, the base 410, the sliding seat 411, and the moving element 412 are on the same horizontal line. The moving element 412 is a guide wheel (as shown in FIG. 2) or a sliding block (not shown in the figure). Figure 9

[0052] ​The base 410 can adopt a split component, for example, as shown in Figure 9 The base 410 includes a top plate, a bottom plate, and a set of side plates, which are vertically arranged between the top plate and the bottom plate to form a cuboid component. The connection between the top plate and the side plates can adopt clamping and / or bolt connection, facilitating the later maintenance and adjustment of the adjustment module 4. The connection between the side plates and the bottom plate can adopt clamping or bolt connection or welding. Preferably, to ensure the firmness of the base 410, a protruding portion is arranged at the edge of the top plate, and a recessed portion is arranged at the corresponding position of the side plate, so that the protruding portion and the recessed portion can be clamped, and then a plurality of bolts are tightened from the top plate to the side plate to complete the fixed connection between the top plate and the side plate.

[0053] The sliding seat 411 includes a first sliding plate and a second sliding plate arranged in parallel, and a connecting plate is arranged at the same side of the first sliding plate and the second sliding plate to connect the two. When the moving element 412 is a guide wheel, the first sliding plate and the second sliding plate are both provided with an axle hole for connecting with the axle of the guide wheel. When the moving element 412 is a guide block, a rectangular guide block is arranged at the side of the first sliding plate and the second sliding plate without the connecting plate.

[0054] The working principle of the present application is as follows:

[0055] When the inner cylinder 2 is lifted, the inner cylinder 2 drives the gear 403 of the adjustment module 4 to roll along the rack 3. At the same time, when the gear 403 rotates in the tightening direction of the thread of the adjustment bolt 404, the adjustment bolt 404 is tightened to press the screw 409, the screw 409 pushes the sliding seat 411 to move away from the square nut 408, and the distance between the moving element 412 and the adjustment track 5 is reduced until the moving element 412 abuts against the second track 502 of the adjustment track 5.

[0056] At this time, the gap adjustment between the moving element 412 and the adjustment track 5 is completed, and the inner cylinder 2 is lowered to the first track 501 of the adjustment track 5.

[0057] Embodiment 2:

[0058] Based on embodiment 1, the adjustment module 4 further includes a ratchet and a pawl 405. The ratchet is arranged at the head of the adjustment bolt 404, and the pawl 405 is elastically connected with the inside of the gear 403. Specifically, the gear 403 is provided with a radial channel, a first elastic element 406 is arranged in the channel, one end of the first elastic element 406 abuts against the inner bottom wall of the channel, and the other end of the first elastic element 406 abuts against the surface of the pawl 405. Optionally, the first elastic element 406 is a compression spring.

[0059] When the gear 403 rotates in the tightening direction of the thread of the adjusting bolt 404, the driving pawl 405 is inserted into the ratchet wheel to push the ratchet wheel to rotate. When the gear 403 reverses, the pawl 405 is released to prevent the adjusting bolt 404 from being unscrewed.

[0060] Preferably, the ratchet wheel and the head of the adjusting bolt 404 are integrally formed, that is, the head of the adjusting bolt 404 is provided with ratchet teeth on the outer edge.

[0061] Embodiment 3:

[0062] Based on Embodiment 2, the guiding device for automatically adjusting the gap further comprises a torque adjusting assembly 407, the torque adjusting assembly 407 comprising a ball and a second elastic element, the second elastic element being embedded in the head of the adjusting bolt 404, one end of the second elastic element abutting against the ball, and the ball being arranged between the adjusting bolt 404 and the gear 403. Specifically, the head of the adjusting bolt 404 is axially provided with a channel, the second elastic element being embedded in the channel, one end of the second elastic element abutting against the inner bottom wall of the channel, and the other end of the second elastic element being connected with the ball. The gear 403 is provided with an arc-shaped groove which can be used to fit the outer surface of the ball. Optionally, the second elastic element is a compression spring.

[0063] When the moving element 412 cannot move any more and the gear 403 is still rotating along the rack 3, the second elastic element of the torque adjusting assembly 407 pushes the ball out, and the ball of the torque adjusting assembly 407 will cause the gear 403 to slip, preventing the guiding device from being damaged.

[0064] Embodiment 4:

[0065] Based on any one of Embodiments 1-3, to ensure that the centers of the outer cylinder 1 and the inner cylinder 2 are aligned after the gap between the moving element 412 and the adjusting track 5 is adjusted, that is, the outer cylinder 1 and the inner cylinder 2 do not deviate, the guiding device for automatically adjusting the gap further comprises a centering module, the centering module comprising a centering positioning block 6 and a centering positioning cone 7, the centering positioning block 6 being fixed to the outer cylinder 1 and being provided with a positioning gap, and the centering positioning cone 7 being fixed to the top of the inner cylinder 2, the centering positioning cone 7 being inserted into the positioning gap of the centering positioning block 6 after the inner cylinder 2 is lifted by a preset distance. Preferably, the shape of the positioning gap is the same as that of the centering positioning cone 7.

[0066] In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly specified and limited, if the terms "arranged", "connected" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] Obviously, the above-mentioned embodiments are only examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A self-adjusting gap guiding device, characterized by: The utility model relates to a lifting device for lifting inner cylinder (2) and outer cylinder (1) of the same height, comprising: inner cylinder (2), outer cylinder (1) is coaxial with the inner cylinder (2), and the inner wall of the outer cylinder (1) is provided with at least one rack (3) and at least one adjusting track (5) installed on different surfaces, the rack (3) and the adjusting track (5) are arranged along the height direction of the outer cylinder (1), wherein the adjusting track (5) comprises a first track (501) and a second track (502), the thickness of the first track (501) is less than the thickness of the second track (502); at least one adjusting module (4) is arranged at the top of the inner cylinder (2), the adjusting module (4) comprises a gear (403), an adjusting bolt (404), a square nut (408), a screw (409), a base (410), a sliding seat (411) and a moving element (412), the gear (403) is sleeved on the head of the adjusting bolt (404), the screw rod of the adjusting bolt (404) is threadedly connected with the square nut (408), the screw rod of the screw (409) penetrates the screw rod of the adjusting bolt (404), the head of the screw (409) is fixedly connected with the sliding seat (411), the sliding seat (411) is installed in the base (410) and slides in the base (410) relative to the square nut (408), and the moving element (412) is fixed to one side of the sliding seat (411); a centering module comprises a centering positioning block (6) and a centering positioning cone (7), the centering positioning block (6) is fixed to the outer cylinder (1) and is provided with a positioning gap, the centering positioning cone (7) is fixed to the top of the inner cylinder (2), and after the inner cylinder (2) is lifted by a preset distance, the centering positioning cone (7) is inserted into the positioning gap of the centering positioning block (6); an external force is applied to lift the inner cylinder (2), the inner cylinder (2) drives the gear (403) of the adjusting module (4) to roll along the rack (3), and when the gear (403) rotates in the screw tightening direction of the adjusting bolt (404), the adjusting bolt (404) is tightened to press the screw (409), the screw (409) drives the sliding seat (411) to move away from the square nut (408), and the distance between the moving element (412) and the adjusting track (5) is reduced.

2. The self-adjusting gap guide of claim 1, wherein: The moving element (412) is a guide wheel or a sliding block.

3. The self-adjusting gap guide of claim 1, wherein: The adjusting module (4) further comprises a ratchet wheel and a pawl (405), the ratchet wheel is arranged on the head of the adjusting bolt (404), the pawl (405) is elastically connected with the inside of the gear (403), when the gear (403) rotates in the screw tightening direction of the adjusting bolt (404), the pawl (405) is driven to insert into the ratchet wheel to drive the ratchet wheel to rotate.

4. A self-adjusting gap guide according to claim 3, characterized in that: The ratchet wheel and the head of the adjusting bolt (404) are integrally formed.

5. The self-adjusting gap guide of claim 1, wherein: The adjusting module (4) further comprises a torque adjusting assembly (407), the torque adjusting assembly (407) comprising a ball and a second elastic element, one end of the second elastic element abutting against the ball, the ball being arranged between the adjusting screw (404) and the gear (403).

6. The self-adjusting gap guide of claim 1, wherein: The adjusting module (4) further comprises an end cover (401) fixed to one side of the gear (403).

7. The self-adjusting gap guide of claim 1, wherein: The number of the adjusting tracks (5) is two, the two adjusting tracks (5) being oppositely arranged, the spacing between the two first tracks (501) being L, the spacing between the two second tracks (502) being L-2t, wherein t is a preset value.

8. The self-adjusting gap guide of claim 1, wherein: The first track (501) and the second track (502) are smoothly connected at the thickness change positions.

9. A method of adjusting a gap automatically, using a guiding device for adjusting a gap automatically according to any one of claims 1-8, characterized in that The method comprises the following steps: When the inner cylinder (2) is lifted, the inner cylinder (2) drives the gear (403) of the adjusting module (4) to roll along the rack (3), At the same time, when the gear (403) rotates in the screw tightening direction of the adjusting screw (404), the tightening adjusting screw (404) extrudes the screw (409), the screw (409) drives the sliding seat (411) to move away from the base (410), the spacing between the moving element (412) and the adjusting track (5) is reduced, and the moving element (412) is tightly abutted against the second track (502) of the adjusting track (5) until the spacing between the moving element (412) and the adjusting track (5) is adjusted. At this time, the spacing adjustment between the moving element (412) and the adjusting track (5) is completed, and the inner cylinder (2) is lowered to the first track (501) of the adjusting track (5).

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