Passive level guiding wheel device

Abstract

The application discloses a passive adjustment horizontal guide wheel device, which comprises a horizontal wheel support, a balance arm, a self-lubricating shaft assembly, a horizontal wheel device, a spring device and a limiting device. The balance arm is arranged in the middle of the horizontal wheel support through the self-lubricating shaft assembly, the horizontal wheel device is symmetrically arranged at both ends of the balance arm, the spring device is symmetrically arranged on the horizontal wheel support and corresponds to both ends of the balance arm, and the limiting device is arranged between the horizontal wheel support and the balance arm. The passive adjustment horizontal guide wheel device has a simple overall structure, can effectively absorb the impact force on the horizontal wheel device, plays a buffering role, avoids damage of the horizontal wheel device, can be passively adjusted and corrected, can be applied to cranes running on straight rails, loop rails and curved rails, and has a wide application range.

Description

Technical Field

[0001] The present invention belongs to the technical field of horizontal guide wheels, and in particular relates to a passive adjustment horizontal guide wheel device. Background Art

[0002] The horizontal wheel device is an essential device for the crane to operate on the track. Figure 1 As shown, the currently used horizontal wheel device mainly consists of a bracket 100 and a horizontal wheel 200. The installation method is that the horizontal wheel 200 is fixedly connected to the bracket 100 by bolts, and the horizontal wheel 200 and the bracket 100 are rigidly connected.

[0003] In the existing technology, due to the deviation in the installation of the track and the wheel, when the crane has a long running stroke, it will generate a large horizontal lateral force and impact force, which can easily cause damage to the horizontal wheel and the rail, resulting in failure of the horizontal wheel guide. The horizontal wheel device is used in pairs and can only be applied to cranes running on straight rails, but not to cranes running on circular rails or curved rails. The horizontal wheel device adopts an eccentric shaft structure, and the gap between the horizontal wheel and the track is adjusted by rotating the eccentric shaft. Due to the complex manufacturing process of the eccentric shaft, the processing difficulty of the horizontal wheel device becomes greater. Summary of the Invention

[0004] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the present invention provides a passive adjustment horizontal guide wheel device.

[0005] The passive adjustment horizontal guide wheel device of the present invention includes a horizontal wheel bracket, a balancing arm, a self-lubricating shaft assembly, a horizontal wheel device, a spring device and a limit device, wherein the balancing arm is arranged in the middle of the horizontal wheel bracket through the self-lubricating shaft assembly, the horizontal wheel device is symmetrically arranged at both ends of the balancing arm, the spring device is symmetrically arranged on the horizontal wheel bracket corresponding to the two ends of the balancing arm, and the limit device is arranged between the horizontal wheel bracket and the balancing arm, wherein:

[0006] The horizontal wheel bracket includes a bracket, a sliding connection hole, an upper connection ear plate and a lower connection ear plate, wherein the upper connection ear plate and the lower connection ear plate are symmetrically arranged in the middle of the bracket, and the sliding connection hole is arranged on both sides of the bracket close to the upper connection ear plate and the lower connection ear plate;

[0007] The horizontal wheel device comprises a fixing nut, a fixing shaft, an adjusting sleeve, a transparent cover, a horizontal wheel body, a bearing, a cover and a baffle, the upper end of the fixing shaft is connected with the balance arm through the fixing nut, the adjusting sleeve is arranged between the middle part of the fixing shaft and the balance arm, the horizontal wheel body is arranged at the lower end of the fixing shaft through the bearing, the transparent cover is arranged at the upper end of the horizontal wheel body, the cover is arranged at the lower end of the horizontal wheel body, and the baffle is arranged at the lower end of the fixing shaft and abuts against the bearing.

[0008] The spring device comprises a connecting rod, a connecting nut and a spring, the spring is arranged on the connecting rod, and the connecting rod is arranged on the horizontal wheel support through the connecting nut.

[0009] Further, in the passive adjustment horizontal guide wheel device, the balance arm is arranged in a convex shape, the front end of the balance arm is provided with a first mounting shaft hole, the rear end of the balance arm is provided with second mounting shaft holes on both sides, and the middle part of the balance arm is provided with circular arc grooves on both sides.

[0010] Further, in the passive adjustment horizontal guide wheel device, the self-lubricating shaft assembly comprises a connecting shaft, a self-lubricating shaft sleeve and a connecting shaft fixing nut, the front end of the balance arm is arranged between the upper connecting ear plate and the lower connecting ear plate, the self-lubricating shaft sleeve is matched with the first mounting shaft hole and the lower connecting ear plate, the self-lubricating shaft sleeve is respectively nested in the first mounting shaft hole and the lower connecting ear plate, and the connecting shaft is matched with the upper connecting ear plate and the self-lubricating shaft sleeve.

[0011] Further, in the passive adjustment horizontal guide wheel device, the connecting shaft sequentially passes through the upper connecting ear plate, the self-lubricating shaft sleeve in the first mounting shaft hole, the self-lubricating shaft sleeve in the lower connecting ear plate and the connecting shaft fixing nut, and the connecting shaft is engaged with the connecting shaft fixing nut.

[0012] Further, in the passive adjustment horizontal guide wheel device, the connecting rod is matched with the sliding connection hole, the end of the connecting rod sequentially passes through the spring, the sliding connection hole and the connecting nut, the two ends of the spring respectively abut against the top end of the connecting rod and the support, and the connecting rod is engaged with the connecting nut.

[0013] Further, in the passive adjustment horizontal guide wheel device, the top end of the connecting rod is provided with an arc-shaped table, the arc-shaped table is matched with the circular arc groove, and the circular arc table abuts against the circular arc groove.

[0014] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, the upper end of the fixed shaft matches the second mounting shaft hole, the upper end of the fixed shaft passes through the adjustment sleeve, the second mounting shaft hole and the fixing nut in sequence, and the fixing nut is engaged with the fixed shaft;

[0015] The lower end of the fixed shaft passes through the transparent cover and the bearing in sequence, the inner ring of the bearing is sleeved on the fixed shaft, the horizontal wheel body is sleeved on the outer ring of the bearing, the transparent cover is embedded in the upper end of the horizontal wheel body, the diameter of the baffle matches the diameter of the bearing, the baffle is fixed to the bottom of the fixed shaft by screws, and the blind cover is embedded in the lower end of the horizontal wheel body.

[0016] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, the limit device includes two trigger rods and a limit switch, the two trigger rods are symmetrically arranged on both sides of the middle of the balance arm, the limit switch is arranged in the middle of the front end of the upper connecting ear plate, and the limit switch is located between the two trigger rods.

[0017] The passive adjustment horizontal guide wheel device of the present invention has the following advantages and beneficial effects: the overall structure is simple, and through the setting of the spring device, it can effectively absorb the impact force on the horizontal wheel device, play a buffering role, and avoid damage to the horizontal wheel device. At the same time, it can be passively adjusted and corrected, and can be suitable for cranes running on straight rails, circular rails, and curved rails, etc., and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only used to further understand the embodiments of the present invention and constitute part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of a horizontal guide wheel device in the prior art;

[0020] Figure 2 This is a schematic diagram of the straight track operation structure of the passive adjustment horizontal guide wheel device of the present invention;

[0021] Figure 3 for Figure 2 The cross-sectional structural diagram of AA in the middle shows the spring device installation structure;

[0022] Figure 4 This is a front view of the passive adjustment horizontal guide wheel device of the present invention;

[0023] Figure 5 forFigure 4 A schematic cross-sectional view of the middle BB shows the connection structure of the self-lubricating shaft assembly;

[0024] Figure 6 This is a schematic diagram of the ring track operation structure of the passive adjustment horizontal guide wheel device of the present invention.

[0025] Description of reference numerals:

[0026] 100: bracket; 200: horizontal wheel;

[0027] 1: horizontal wheel bracket, 11: bracket, 12: sliding connection hole, 13: upper connecting ear plate, 14: lower connecting ear plate;

[0028] 2: balance arm, 21: first mounting shaft hole, 22: second mounting shaft hole, 23: arc groove;

[0029] 3: Self-lubricating shaft assembly, 31: Connecting shaft, 32: Self-lubricating sleeve, 33: Connecting shaft fixing nut;

[0030] 4: horizontal wheel device, 41: fixing nut, 42: fixed shaft, 43: adjusting sleeve, 44: transparent cover, 45: horizontal wheel body, 46: bearing, 47: blind cover, 48: baffle;

[0031] 5: spring device, 51: connecting rod, 52: arc platform, 53: connecting nut, 54: spring;

[0032] 6: Limit device, 61: Trigger rod, 62: Limit switch. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 2 to 6 As shown, the passive adjustment horizontal guide wheel device of the present invention includes a horizontal wheel bracket 1, a balancing arm 2, a self-lubricating shaft assembly 3, a horizontal wheel device 4, a spring device 5 and a limit device 6. The balancing arm 2 is arranged in the middle of the horizontal wheel bracket 1 through the self-lubricating shaft assembly 3. The horizontal wheel device 4 is symmetrically arranged at both ends of the balancing arm 2. The spring device 5 is symmetrically arranged on the horizontal wheel bracket 1 corresponding to the two ends of the balancing arm 2. The limit device 6 is arranged between the horizontal wheel bracket 1 and the balancing arm 2, wherein:

[0035] The horizontal wheel support 1 comprises a support 11, a sliding connection hole 12, an upper connection lug plate 13 and a lower connection lug plate 14, the upper connection lug plate 13 and the lower connection lug plate 14 are symmetrically arranged in the middle of the support 11, and the sliding connection hole 12 is arranged on both sides of the support 11 close to the upper connection lug plate 13 and the lower connection lug plate 14;

[0036] The horizontal wheel device 4 comprises a fixing nut 41, a fixing shaft 42, an adjusting sleeve 43, a transparent cover 44, a horizontal wheel body 45, a bearing 46, a plug cover 47 and a baffle 48, the upper end of the fixing shaft 42 is connected with the balance arm 2 through the fixing nut 41, the adjusting sleeve 43 is arranged between the middle of the fixing shaft 42 and the balance arm 2, the horizontal wheel body 45 is arranged at the lower end of the fixing shaft 42 through the bearing 46, the transparent cover 44 is arranged at the upper end of the horizontal wheel body 45, the plug cover 47 is arranged at the lower end of the horizontal wheel body 45, and the baffle 48 is arranged at the lower end of the fixing shaft 42 and abuts against the bearing 46;

[0037] The spring device 5 comprises a connecting rod 51, a connecting nut 53 and a spring 54, the spring 54 is arranged on the connecting rod 51, and the connecting rod 51 is arranged on the horizontal wheel support 1 through the connecting nut 53.

[0038] Further, in the passive adjustment horizontal guide wheel device, the balance arm 2 is arranged in a convex shape, the front end of the balance arm 2 is provided with a first mounting shaft hole 21, the rear end of the balance arm 2 is provided with second mounting shaft holes 22 on both sides, and the middle of the balance arm 2 is provided with circular arc grooves 23 on both sides.

[0039] Further, in the passive adjustment horizontal guide wheel device, the self-lubricating shaft assembly 3 comprises a connecting shaft 31, a self-lubricating shaft sleeve 32 and a connecting shaft fixing nut 33, the front end of the balance arm 2 is arranged between the upper connection lug plate 13 and the lower connection lug plate 14, the self-lubricating shaft sleeve 32 is matched with the first mounting shaft hole 21 and the lower connection lug plate 14, the self-lubricating shaft sleeve 32 is respectively nested in the first mounting shaft hole 21 and the lower connection lug plate 14, and the connecting shaft 31 is matched with the upper connection lug plate 13 and the self-lubricating shaft sleeve 32.

[0040] Further, in the passive adjustment horizontal guide wheel device, the connecting shaft 31 sequentially passes through the upper connection lug plate 13, the self-lubricating shaft sleeve 32 in the first mounting shaft hole 21, the self-lubricating shaft sleeve 32 in the lower connection lug plate 14 and the connecting shaft fixing nut 33, the connecting shaft 31 is engaged with the connecting shaft fixing nut 33, the upper connection lug plate 13 and the lower connection lug plate 14 are connected with the balance arm 2 through the connecting shaft 31, the lubrication between the lower connection lug plate 14 and the balance arm 2 is effectively ensured, maintenance is free, the wear of the connecting shaft 31 is effectively relieved, and thus the service life is improved.

[0041] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, the connecting rod 51 matches the sliding connection hole 12, and the end of the connecting rod 51 passes through the spring 54, the sliding connection hole 12 and the connecting nut 53 in sequence. The two ends of the spring 54 respectively abut against the top of the connecting rod 51 and the bracket 11, and the connecting rod 51 is engaged with the connecting nut 53;

[0042] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, an arc-shaped platform 52 is provided at the top of the connecting rod 51, and the arc-shaped platform 52 matches the arc groove 23. The arc-shaped platform abuts against the arc groove 23. The two ends of the balance arm 2 are supported by the spring device 5. When impacted, it can effectively absorb the impact force of the horizontal wheel device 4 and effectively avoid damage to the horizontal wheel device 4.

[0043] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, the upper end of the fixed shaft 42 matches the second mounting shaft hole 22, and the upper end of the fixed shaft 42 passes through the adjustment sleeve 43, the second mounting shaft hole 22 and the fixing nut 41 in sequence, and the fixing nut 41 is engaged with the fixed shaft 42;

[0044] The lower end of the fixed shaft 42 passes through the transparent cover 44 and the bearing 46 in sequence. The inner ring of the bearing 46 is sleeved on the fixed shaft 42. The horizontal wheel body 45 is sleeved on the outer ring of the bearing 46. The transparent cover 44 is embedded in the upper end of the horizontal wheel body 45. The diameter of the baffle 48 matches the diameter of the bearing 46. The baffle 48 is fixed to the bottom of the fixed shaft 42 by screws. The blind cover 47 is embedded in the lower end of the horizontal wheel body 45, which effectively ensures the size and installation accuracy, and effectively prevents the horizontal wheel body 45 from falling off accidentally.

[0045] Furthermore, in the above-mentioned passive adjustment horizontal guide wheel device, the limit device 6 includes two trigger rods 61 and a limit switch 62. The two trigger rods 61 are symmetrically arranged on both sides of the middle of the balance arm 2, and the limit switch 62 is arranged in the middle of the front end of the upper connecting ear plate 13. The limit switch 62 is located between the two trigger rods 61 and can detect the rotation angle of the balance arm 2, effectively preventing the horizontal wheel device 4 from being damaged due to excessive lateral force.

[0046] Specifically, the passive adjustment horizontal guide wheel device is running on a straight track, such as Figure 1As shown, when the horizontal wheel device 4 is subjected to a large horizontal lateral force, the horizontal wheel device 4 rotates the balance arm 2, at this time, the arc-shaped groove 23 on the balance arm 2 extrudes the arc-shaped table 52, the spring 54 is compressed, the connecting rod 51 slides in the sliding connection hole 12, and the impact force is absorbed, so that the damage of the horizontal wheel device 4 caused by the excessive horizontal force is effectively avoided; when the spring 54 is compressed to a certain extent, the spring 54 returns to the original position, and the horizontal wheel body 45 is slowly corrected until the vehicle frame is corrected to the right position; when the rotation angle of the balance arm 2 is too large, the trigger rod 61 contacts the limit switch 62, thereby triggering the limit, thereby effectively preventing the damage of the horizontal wheel device 4 caused by the excessive lateral force. The passive adjustment horizontal guide wheel device is used in the operation of the loop track, as shown in the figure, the length of the connecting rod 51 is adjusted by rotating the connecting nut 53 to compress the spring 54, so that the balance arm 2 is inclined at a certain angle, thereby being suitable for the operation of the loop track or the curved track, and the application range of the horizontal wheel is expanded. Figure 6

[0047] Compared with the prior art, the passive adjustment horizontal guide wheel device has the following advantages and beneficial effects: the overall structure is simple, the impact force on the horizontal wheel device can be effectively absorbed by the spring device, the buffering effect is achieved, the damage of the horizontal wheel device is avoided, the horizontal wheel device has simple machining process and is easy to ensure the size, can be passively adjusted and corrected, and can be applied to cranes operating on straight tracks, loop tracks and curved tracks, and has wide application range.

[0048] It should be noted that, in this document, unless otherwise explicitly specified and limited, the term "connection" or its synonyms should be understood in a broad sense, for example, "connection" can be fixed connection, can be detachable connection, can be mechanical connection, can be electrical connection, can be direct connection, can be indirect connection through an intermediate medium, can be internal connection of two elements or interaction relationship between two elements, and those skilled in the art can understand the specific meaning of the above-mentioned term in the present application according to the specific situation. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. At the same time, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this document are referred to the placement state shown in the drawings.

[0049] ​Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A passive adjustment horizontal guide wheel device, characterized in that: The passive adjustment horizontal guide wheel device includes a horizontal wheel bracket, a balancing arm, a self-lubricating shaft assembly, a horizontal wheel device, a spring device and a limit device. The balancing arm is arranged in the middle of the horizontal wheel bracket through the self-lubricating shaft assembly. The horizontal wheel device is symmetrically arranged at both ends of the balancing arm. The spring device is symmetrically arranged on the horizontal wheel bracket corresponding to the two ends of the balancing arm. The limit device is arranged between the horizontal wheel bracket and the balancing arm, wherein: The horizontal wheel bracket includes a bracket, a sliding connection hole, an upper connection ear plate and a lower connection ear plate, wherein the upper connection ear plate and the lower connection ear plate are symmetrically arranged in the middle of the bracket, and the sliding connection hole is arranged on both sides of the bracket close to the upper connection ear plate and the lower connection ear plate; The horizontal wheel device includes a fixing nut, a fixed shaft, an adjustment sleeve, a transparent cover, a horizontal wheel body, a bearing, a blind cover and a baffle. The upper end of the fixed shaft is connected to the balance arm through the fixing nut. The adjustment sleeve is arranged between the middle of the fixed shaft and the balance arm. The horizontal wheel body is arranged at the lower end of the fixed shaft through the bearing. The transparent cover is arranged at the upper end of the horizontal wheel body. The blind cover is arranged at the lower end of the horizontal wheel body. The baffle is arranged at the lower end of the fixed shaft and abuts against the bearing. The spring device includes a connecting rod, a connecting nut and a spring, wherein the spring is arranged on the connecting rod, and the connecting rod is arranged on the horizontal wheel bracket through the connecting nut; The limit device includes a limit switch and two trigger rods, the two trigger rods are symmetrically arranged on both sides of the middle of the balance arm, the limit switch is arranged in the middle of the front end of the upper connecting ear plate, and the limit switch is located between the two trigger rods.

2. The passive adjustment horizontal guide wheel device according to claim 1, characterized in that: The balance arm is convex in shape, a first mounting shaft hole is provided at the front end of the balance arm, second mounting shaft holes are provided at both sides of the rear end of the balance arm, and arc grooves are provided at both sides of the middle of the balance arm.

3. The passive adjustment horizontal guide wheel device according to claim 2, characterized in that: The self-lubricating shaft assembly includes a connecting shaft, a self-lubricating sleeve and a connecting shaft fixing nut. The front end of the balance arm is placed between the upper connecting ear plate and the lower connecting ear plate. The self-lubricating sleeve matches the first mounting shaft hole and the lower connecting ear plate. The self-lubricating sleeve is nested in the first mounting shaft hole and the lower connecting ear plate respectively. The connecting shaft matches the upper connecting ear plate and the self-lubricating sleeve.

4. The passive adjustment horizontal guide wheel device according to claim 3, characterized in that: The connecting shaft passes through the upper connecting ear plate, the self-lubricating sleeve in the first mounting shaft hole, the self-lubricating sleeve in the lower connecting ear plate and the connecting shaft fixing nut in sequence, and the connecting shaft is engaged with the connecting shaft fixing nut.

5. The passive adjustment horizontal guide wheel device according to claim 1, characterized in that: The connecting rod matches the sliding connection hole, the end of the connecting rod passes through the spring, the sliding connection hole and the connecting nut in sequence, the two ends of the spring are respectively in contact with the top end of the connecting rod and the bracket, and the connecting rod is engaged with the connecting nut.

6. The passive adjustment horizontal guide wheel device according to claim 2, characterized in that: The top end of the connecting rod is provided with an arc-shaped platform, which matches the circular arc groove and abuts against the circular arc groove.

7. The passive adjustment horizontal guide wheel device according to claim 2, characterized in that: The upper end of the fixed shaft matches the second mounting shaft hole, and the upper end of the fixed shaft passes through the adjustment sleeve, the second mounting shaft hole and the fixing nut in sequence, and the fixing nut is engaged with the fixed shaft; The lower end of the fixed shaft passes through the transparent cover and the bearing in sequence, the inner ring of the bearing is sleeved on the fixed shaft, the horizontal wheel body is sleeved on the outer ring of the bearing, the transparent cover is embedded in the upper end of the horizontal wheel body, the diameter of the baffle matches the diameter of the bearing, the baffle is fixed to the bottom of the fixed shaft by screws, and the blind cover is embedded in the lower end of the horizontal wheel body.

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