Novel follow-up grab bucket rope guide

Abstract

The utility model relates to the field of grab bucket rope guides, in particular to a novel follow-up grab bucket rope guide which comprises an installation assembly used for fixing the rope guide on a grab bucket, a guide assembly used for guiding a rope is assembled at the upper end of the installation assembly in a rotating mode, a steel cable is arranged in the guide assembly, and the installation assembly comprises a fixing base and a first bearing. The guide assembly comprises two sets of mounting plates, a base and a connecting plate fixedly connected with the first bearing, and a pulley is arranged between the two sets of mounting plates, point contact between the steel cable and the guide assembly is changed into line contact through the pulley, the steel cable and the center of the fixing base are not on the same axis, and the base and the fixing base rotate relatively; when the grab bucket topples in different directions, the steel cable pulls and drives the bases of the two pulleys to rotate, so that the pulley rope grooves directly face the stress direction of the steel cable, the steel cable and the pulleys are in the optimal stress state, the wear-resisting life of the pulleys is prolonged, and stress is more reasonable.

Description

TECHNICAL FIELD

[0001] The utility model relates to grab bucket guide rope device field, concretely relates to a novel follow -up grab bucket guide rope device. BACKGROUND

[0002] The guide rope device is a kind of equipment for hoisting machinery or other needs control object movement, such as crane or grab bucket etc., guide rope device is used to guide steel cable, rope or other types of rope, to control the position and movement of object, the function of guide rope device is to reduce friction, balance load and provide stable guide, it can make the rope or steel cable more smoothly in movement, reduce the friction and wear between rope and ground or other objects, while ensuring the uniform distribution and control of load.

[0003] The existing grab bucket guide rope device has four-wheel guide rope device and double-layer guide rope device respectively, wherein the four-wheel guide rope device has the worst effect in use, this is because there is a large gap between adjacent two wheels, and the rope is easy to be stuck in the gap, even jump out of the wheel and cause sharp wear, and the double-layer guide rope device is point contact between steel wire rope and guide rope wheel, resulting in large contact stress. CONTENT OF UTILITY MODEL

[0004] Therefore, the utility model provides a novel follow -up grab bucket guide rope device to solve the technical problems that the existing grab bucket guide rope device has a large gap between adjacent two wheels, the rope is easy to be stuck in the gap, and there is point contact between steel wire rope and guide rope wheel, resulting in large contact stress.

[0005] To achieve the above purpose, the utility model provides a novel follow -up grab bucket guide rope device, which comprises a mounting assembly for fixing the guide rope device on the grab bucket, a guide assembly for guiding the rope is rotatably assembled on the upper end of the mounting assembly, and a steel cable is arranged in the guide assembly.

[0006] The mounting assembly comprises a fixing seat and a first bearing connected with the guide assembly.

[0007] The guide assembly comprises two groups of mounting plates and a base, the base is provided with a connecting plate fixedly connected with the first bearing at the bottom, the connecting plate is provided with threaded holes for bolt connection with the base, and two groups of pulleys in contact with the steel cable are rotatably installed between the two groups of mounting plates.

[0008] Preferably, the mounting assembly further comprises a fixed plate, and a through hole is formed in the center of the fixed plate for the steel cable to pass through.

[0009] Preferably, the fixing seat is provided with a plurality of assembly holes on the surface for fixing the fixing seat on the fixed plate.

[0010] Preferably, one side of the mounting plate is provided with a reinforcing rib, and two groups of mounting holes for assembling with the pulleys are formed in the mounting plate.

[0011] Preferably, the second bearing is fixedly installed inside the front and rear surfaces of the pulley.

[0012] Preferably, one side of the reinforcing rib is provided with a fixing sheet, and one side of the fixing sheet is provided with an elongated shaft which is inserted into the mounting hole and the second bearing.

[0013] Preferably, one end of the elongated shaft is provided with a detachably installed limiting block, the limiting block is internally provided with a clamping tooth, and one end of the elongated shaft is provided with a clamping groove matched with the clamping tooth.

[0014] The utility model discloses the beneficial effects of:

[0015] The utility model discloses the steel cable and the guide assembly between the pulley are improved from point contact to line contact, and then the base is connected with the first bearing by the connecting plate, the threaded hole and the bolt, so that the base and the fixed seat relatively rotate, and the center point between the surfaces of the two groups of pulleys assembled on the mounting plate is not on the same axis with the center of the fixed seat, so that the steel cable is in the eccentric state, when the steel cable is affected by the lateral external force, the base rotates, so that the pulley changes the original position, and then when the grab bucket tilts in different directions, the base of the two pulleys is rotated by the pulling of the steel cable, the pulley rope groove is opposite the stress direction of the steel cable, the steel cable and the pulley are in the best stress state, the wear life of the pulley is improved, and the stress is more reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and other drawings can be obtained by the ordinary skilled in the art without creative labor.

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the mounting assembly structure schematic view of the utility model;

[0019] Figure 3 It is the mounting plate and base structure schematic view of the utility model;

[0020] Figure 4 It is the pulley structure schematic view of the utility model;

[0021] Figure 5 It is the elongated shaft structure schematic view of the utility model;

[0022] Figure 6 for the working state of the utility model Figure 1 ;

[0023] Figure 7 for the working state of the utility model Figure 2 .

[0024] Reference signs in the drawings are:

[0025] 1, mounting assembly; 11, fixed plate; 111, through hole; 12, fixed seat; 121, assembly hole; 13, first bearing; 2, guide assembly; 21, mounting plate; 211, mounting hole; 22, reinforcing rib; 23, base; 24, connecting plate; 241, threaded hole; 25, pulley; 26, second bearing; 27, fixed sheet; 271, long shaft; 28, limiting block; 281, clamping tooth; 3, steel cable. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the following will be combined with specific embodiments, and the utility model will be further described in detail.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used by the utility model should be understood as the usual meaning by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0029] In combination with Figures 1-3 , Figure 6 and Figure 7 , the utility model provides a novel follow-up type grab bucket guide rope device, which comprises a mounting assembly 1 for fixing the guide rope device on the grab bucket, a guide assembly 2 for guiding the rope is rotatably assembled on the upper end of the mounting assembly 1, and a steel cable 3 is arranged inside the guide assembly 2;

[0030] The mounting assembly 1 comprises a fixed seat 12 and a first bearing 13 connected with the guide assembly 2.

[0031] The guiding assembly 2 comprises two sets of mounting plates 21 and a base 23, the bottom of the base 23 is provided with a connecting plate 24 for fixed connection with the first bearing 13, the connecting plate 24 is provided with a threaded hole 241 for bolt connection with the base 23, and two sets of pulleys 25 in contact with the steel cable 3 are rollingly mounted between the two sets of mounting plates 21;

[0032] Firstly, the mounting assembly 1 and the guiding assembly 2 are fixedly installed on the grab bucket through the fixing seat 12, the pulley 25 is provided with a rope groove in the periphery, the point contact between the steel cable 3 and the guiding assembly 2 is improved to line contact, the base 23 is also provided with the same structure as the threaded hole 241 on the connecting plate 24, and the base 23 and the first bearing 13 are connected through the connecting plate 24, the threaded hole 241 and the bolt, so that the base 23 rotates relative to the fixing seat 12;

[0033] The center point of the minimum distance between the surfaces of the two sets of pulleys 25 assembled on the mounting plate 21 is not on the same axis as the center of the fixing seat 12, so that the steel cable 3 is in an eccentric state, as shown in Figure 6 When the steel cable 3 is affected by a lateral external force, the base 23 rotates, so that the pulley 25 changes the original position, as shown in Figure 7 When the grab bucket tilts in different directions, the steel cable 3 pulls the base 23 of the two pulleys 25 to rotate, so that the rope groove of the pulley 25 is opposite to the force direction of the steel cable 3, so that the steel cable 3 and the pulley 25 are in the best force state, the wear life of the pulley 25 is improved, and the force is more reasonable.

[0034] In combination with Figures 2-5 In the embodiment, the mounting assembly 1 further comprises a fixed plate 11, and the fixed plate 11 is provided with a through hole 111 in the center for the steel cable 3 to pass through;

[0035] Further, the steel cable 3 passes through the through hole 111 vertically under the guidance of the two sets of pulleys 25.

[0036] In the embodiment, the fixing seat 12 is provided with a plurality of assembly holes 121 on the surface for fixing the fixing seat 12 on the fixed plate 11;

[0037] Further, the fixing seat 12 is installed on the fixed plate 11 through the bolt and the assembly hole 121.

[0038] In the embodiment, the mounting plate 21 is provided with a reinforcing rib 22 on one side, and the mounting plate 21 is provided with two sets of mounting holes 211 for assembly with the pulley 25;

[0039] Further, the reinforcing rib 22 on one side of the mounting plate 21 can enhance the overall structural strength of the mounting plate 21, improve the service life, the pulley 25 can be installed between the two groups of mounting plates 21 through the mounting hole 211, the mounting plate 21 is approximately trapezoidal, but not approximately isosceles trapezoidal, which makes the center distance of the mounting hole 211 and the fixed seat 12 not equal, so that the center distance of the pulley 25 and the fixed seat 12 is not equal, and further makes the center of the two groups of pulleys 25 and the fixed seat 12 not located on the same axis.

[0040] In the embodiment, the second bearing 26 is fixedly installed inside the front and rear surfaces of the pulley 25;

[0041] Further, the pulley 25 can rotate in the middle of the two groups of mounting plates 21 through the fixedly installed second bearing 26, the axis of the second bearing 26 and the center of the mounting hole 211 are on the same axis.

[0042] In the embodiment, the reinforcing rib 22 is provided with a fixed sheet 27 on one side, the fixed sheet 27 is provided with a long shaft 271 which is inserted into the mounting hole 211 and the second bearing 26;

[0043] Further, the long shaft 271 passes through the axis of the second bearing 26 and is fixedly connected with the second bearing 26, so as to avoid the rotation of the second bearing 26 and affect the rotation of the pulley 25.

[0044] In the embodiment, the long shaft 271 is provided with a detachable limiting block 28 at one end, the limiting block 28 is provided with a clamping tooth 281, and the long shaft 271 is provided with a clamping groove at one end which is matched with the clamping tooth 281;

[0045] Further, the limiting block 28 can be fixed with the long shaft 271 through the clamping tooth 281 and the clamping groove at one end of the long shaft 271, so as to prevent the long shaft 271 from being separated from the mounting hole 211 due to the rotation of the pulley 25.

[0046] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary, and is not intended to imply that the scope (including claims) of the utility model is limited to these examples; the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in details for the sake of brevity.

[0047] The utility model aims at covering all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of follow-up grab rope guide, characterized in that: The invention comprises a mounting assembly (1) for fixing a rope guide on a grab bucket, wherein the upper end of the mounting assembly (1) is rotatably equipped with a guide assembly (2) for guiding a rope, and a steel cable (3) is provided inside the guide assembly (2); The mounting assembly (1) includes a fixing seat (12) and a first bearing (13) for connecting with the guide assembly (2); The guide assembly (2) includes two groups of mounting plates (21) and a base (23). A connecting plate (24) for fixedly connecting to the first bearing (13) is provided at the bottom of the base (23). A threaded hole (241) for bolt connection with the base (23) is provided on the connecting plate (24). Two groups of pulleys (25) in contact with the steel cable (3) are rotatably installed between the two groups of mounting plates (21).

2. A novel follow-up grab rope guide according to claim 1, characterized in that: The installation assembly (1) further comprises a fixing plate (11), wherein a through hole (111) is provided at the center of the fixing plate (11) for the steel cable (3) to pass through.

3. A novel follow-up grab rope guide according to claim 2, characterized in that: The fixing seat (12) has a plurality of assembly holes (121) on its surface for fixing the fixing seat (12) on the fixing plate (11).

4. The novel follow-up grab rope guide according to claim 1 is characterized in that: A reinforcing rib (22) is provided on one side of the mounting plate (21), and two groups of mounting holes (211) for assembling with the pulley (25) are opened on the mounting plate (21).

5. The novel follow-up grab rope guide according to claim 4 is characterized in that: Second bearings (26) are fixedly installed inside the front and rear surfaces of the pulley (25).

6. The novel follow-up grab rope guide according to claim 5 is characterized in that: A fixing plate (27) is provided on one side of the reinforcing rib (22), and a long shaft (271) plugged into the mounting hole (211) and the second bearing (26) is provided on one side of the fixing plate (27).

7. The novel follow-up grab rope guide according to claim 6 is characterized in that: One end of the long shaft (271) is provided with a detachably mounted limit block (28), a latching tooth (281) is provided inside the limit block (28), and one end of the long shaft (271) is provided with a latching groove for matching the latching tooth (281).

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