Crane power supply cable reversing device

Abstract

The utility model discloses a crane power supply cable reversing device which comprises a bottom plate used for being connected with the ground; the supporting seat is fixedly arranged on the bottom plate; the bent pipe structure is rotatably connected to the supporting seat and is used for covering a cable turning part; wherein the supporting seat comprises a box body, a shaft sleeve, a bearing and a bearing fixing structure; the shaft sleeve is arranged on the bent pipe structure in a sleeving manner; the bearing is arranged on the shaft sleeve in a sleeving manner, and the bearing is arranged in a slotted hole in the box body; according to the scheme, under the condition that two cranes share one track, cable reversing can be rapidly completed, the cable is protected and prevented from being abraded and damaged, the structure is compact and flexible, the occupied space is reduced, maintenance is convenient, and the cost is low. The cable is prevented from being repeatedly bent and worn when the turnover device moves left and right, and the service life of the cable is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hoist, more specifically, especially relates to a hoist power cable reversing device. BACKGROUND

[0002] In the production operation process of the yard and the wharf, the mobile crane is usually used to transfer the goods. Since the crane is in a moving state during operation, the power supply of the crane is usually provided by a cable reel. The cable reel is installed on the crane. One end of the power cable is connected to the cable reel, and the other end is connected to the ground cable adapter box. When the crane moves left and right, the cable reel retracts and releases the cable. When the crane moves away from the cable adapter box, the cable reel releases the cable, and the cable is laid on the ground. When the mobile crane approaches the cable adapter box, the cable reel winds up the cable, and the cable is wound on the cable reel.

[0003] In order to reduce the length of the power cable of the mobile crane, the power cable joint is usually arranged at the middle position of the moving range of the equipment in the prior art. When the portal crane passes through the power cable joint position, the running direction of the cable needs to be changed. During the process of bending the cable back and forth, the cable is easy to break and damage, and the insulation layer is easy to fail, which has certain safety hazards.

[0004] Therefore, how to provide a hoist power cable reversing device, which can overcome the problems of the prior art, realize cable reversing to protect the cable, and improve the safety and reliability of the power cable of the portal crane during movement, has become a technical problem to be solved by those skilled in the art. SUMMARY

[0005] To solve the above technical problems, the utility model provides a hoist power cable reversing device, which can overcome the problems of the prior art, realize cable reversing to protect the cable, and improve the safety and reliability of the power cable of the portal crane during movement.

[0006] The utility model provides a hoist power cable reversing device, which comprises a bottom plate for connecting with the ground, a support seat fixedly arranged on the bottom plate, and a bent pipe structure rotatably connected to the support seat, which is used to cover the cable turning position. The support seat comprises a box body, a shaft sleeve, a bearing, and a bearing fixing structure. The shaft sleeve is sleeved on the bent pipe structure. The bearing is sleeved on the shaft sleeve and arranged in a slot hole on the box body. The bearing fixing structure is arranged on the box body to limit the position of the bearing.

[0007] Further, in a preferred mode of the utility model, the bearing fixing device comprises: a spacer sleeve, which is arranged in the slot hole and abuts against the outer ring of the bearing; a baffle, which is arranged on the box and located at the opening end of the slot hole; the other end of the slot hole away from the baffle is provided with a hole shoulder structure; the hole shoulder structure cooperates with the spacer sleeve to limit the displacement of the outer ring of the bearing.

[0008] Further, in a preferred mode of the utility model, the hole shoulder structure comprises: an outer hole shoulder and an inner hole shoulder; the outer hole shoulder is coaxial with the inner hole shoulder and is connected; the outer hole shoulder is connected with the slot hole; the outer hole shoulder abuts against the outer ring of the bearing; the inner hole shoulder has a gap between the bearing and the shaft sleeve.

[0009] Further, in a preferred mode of the utility model, the baffle fastening bolt thread structure is arranged on the box.

[0010] Further, in a preferred mode of the utility model, the shaft sleeve comprises: a shaft body, a shaft shoulder arranged on one end of the shaft body, a shaft sleeve thread structure arranged on the other end of the shaft body, a nut threadedly connected to the shaft sleeve thread structure, the bearing is arranged on the shaft body of the shaft sleeve, the shaft shoulder abuts against one side of the inner ring of the bearing, and the nut is threadedly fastened on the other side of the inner ring of the bearing.

[0011] Further, in a preferred mode of the utility model, the elbow structure comprises: a connecting section, an arc section and a rotating section; the connecting section, the arc section and the rotating section are sequentially connected; the elbow structure is connected with the shaft sleeve through the connecting section.

[0012] Further, in a preferred mode of the utility model, the elbow structure is an L-shaped elbow structure.

[0013] Further, in a preferred mode of the utility model, the elbow structure is divided into two half pipes along its axis; the two half pipes are fixedly connected through a fastener after being combined.

[0014] Further, in a preferred mode of the utility model, the device further comprises: a clamping spring structure, which is arranged on the support seat, covers the outside of the cable, and is used for fixing the cable on the support seat.

[0015] Further, in a preferred mode of the utility model, one shaft sleeve, one bearing, one bearing fixing structure, one elbow structure, one clamping spring structure constitute a group of cable rotating units;The number of the cable rotating units is two or more than two;Two or more than two cable rotating units are staggered on the horizontal plane;The length of the connecting section of two or more than two cable rotating units is not the same, and the planes of the axes of the rotating sections are staggered.

[0016] Compared with the prior art, the utility model provides a kind of crane power cable reversing device, which comprises: bottom plate, the bottom plate is used to be connected with ground;Fixedly arranged on the support seat of the bottom plate;Elbow structure can be rotatably connected on the support seat, and the elbow structure is used to cover cable overturning;Wherein, the support seat includes: box, shaft sleeve, bearing, bearing fixing structure;The shaft sleeve is sleeved on the elbow structure;The bearing is sleeved on the shaft sleeve, and the bearing is arranged in the slot hole on the box;The bearing fixing structure is arranged on the box, for limiting the position of the bearing, the utility model scheme can be realized in the case where two cranes share a track, cable reversing is quickly completed, cable abrasion and damage are prevented, and the structure is compact and flexible, the occupied space is reduced, and maintenance is convenient, avoid cable repeatedly bending and wearing when moving left and right in overturning device, prolong the service life of cable. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0018] Figure 1 The front view of the crane power cable reversing device provided by the embodiment of the utility model is provided.

[0019] Figure 2 The top view of the crane power cable reversing device provided by the embodiment of the utility model is provided.

[0020] Figure 3 The sectional view of the support seat provided by the embodiment of the utility model is provided.

[0021] Figure 4 The explosion view of the support seat provided by the embodiment of the utility model is provided.

[0022] Figure 5 The position structure diagram of the slot hole and hole shoulder structure provided by the embodiment of the utility model is provided.

[0023] Figure 6 A structure schematic view of the hole shoulder structure provided by the embodiment of the present utility model;

[0024] Figure 7 A structure schematic view of the shaft sleeve provided by the embodiment of the present utility model;

[0025] Figure 8 A schematic view of turning to one side of the two cable rotation units provided by the embodiment of the present utility model;

[0026] Figure 9 A schematic view of turning to the other side of the two cable rotation units provided by the embodiment of the present utility model. DETAILED DESCRIPTION

[0027] In order to make the skilled in the art better understand the technical scheme in the present utility model, the technical scheme in the embodiments of the present utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by the skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple", "several" is two or more than two, unless otherwise explicitly and specifically limited.

[0031] It should be understood that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the utility model, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the utility model, should still fall within the scope of the disclosed technology.

[0032] As Figures 1 to 9 shown, the crane power cable reversing device provided by the utility model embodiment comprises a bottom plate 2 used for being connected with the ground;

[0033] A support seat 3 is fixedly arranged on the bottom plate 2;

[0034] A bent pipe structure 1 is rotatably connected to the support seat 3, and the bent pipe structure 1 is used for covering the turning place of the cable 5;

[0035] The support seat 3 comprises a box body 3a, a shaft sleeve 3b, a bearing 3d and a bearing fixing structure.

[0036] The shaft sleeve 3b is sleeved on the bent pipe structure 1;

[0037] The bearing 3d is sleeved on the shaft sleeve 3b, and the bearing 3d is arranged in a slot hole 3a1 on the box body 3a; the bearing fixing structure is arranged on the box body 3a and is used for limiting the position of the bearing 3d. The utility model scheme can realize quick cable reversing in the case that two cranes share one track, protect the cable from being damaged by abrasion, has compact and flexible structure, reduces the occupied space, is convenient to maintain, avoids repeated bending and abrasion of the cable when moving left and right in the turning device, and prolongs the service life of the cable.

[0038] Specifically, in the utility model embodiment, the bearing fixing device comprises:

[0039] A spacer sleeve 3f is arranged in the slot hole 3a1 and abuts against the outer ring of the bearing 3d; a baffle 3c is arranged on the box body 3a and located at the opening end of the slot hole 3a1; the other end of the slot hole 3a1 away from the baffle 3c is provided with a hole shoulder structure 3a2; the hole shoulder structure 3a2 cooperates with the spacer sleeve 3f to limit the displacement of the outer ring of the bearing 3d.

[0040] Specifically, in the embodiment of the utility model, the hole shoulder structure 3a2 includes: outer hole shoulder 3a21, inner hole shoulder 3a22, the outer hole shoulder 3a21 is coaxial with the inner hole shoulder 3a22 and is connected, the outer hole shoulder 3a21 is connected with the slot hole 3a1, the outer hole shoulder 3a21 is connected with the outer ring of bearing 3d, the inner hole shoulder 3a22 has clearance between bearing 3d and shaft sleeve 3b.

[0041] Specifically, in the embodiment of the utility model, the baffle 3c fastening bolt thread structure is arranged on the box 3a.

[0042] Specifically, in the embodiment of the utility model, the shaft sleeve 3b includes: shaft body 3b1,

[0043] The shaft shoulder 3b2 is arranged on one end of the shaft body 3b1,

[0044] The shaft sleeve thread structure 3b3 is arranged on the other end of the shaft body 3b1,

[0045] The nut 3e is screwed on the shaft sleeve thread structure 3b3,

[0046] The bearing 3d is installed on the shaft body 3b1 of the shaft sleeve 3b,

[0047] The shaft shoulder 3b2 is in contact with one side of the inner ring of the bearing 3d,

[0048] The nut 3e is screwed on the other side of the inner ring of the bearing 3d.

[0049] Specifically, in the embodiment of the utility model, the elbow structure 1 includes: connecting section 101, arc section 102, rotating section 103, the connecting section 101, the arc section 102 and rotating section 103 are connected in turn, the elbow structure 1 is connected with the shaft sleeve 3b through the connecting section 101.

[0050] Wherein, the elbow structure 1 can be two half pipes, the two sides of the two half pipes can be connected through screws, on the basis of the above embodiment, as a preferred, rubber skin can be added to the cable in the elbow structure 1, considering the specific arrangement mode of fixation, as a preferred, the valley bottom mode includes a bottom plate 2, through the hole on the bottom plate 2 through the anchor screw, fixed with a nut or fixed with an expansion bolt, etc., to ensure the reliability of the support and the ground connection, more specifically, the elbow can be 2, also can be 3, the shorter elbow can be arranged above the longer elbow.

[0051] Specifically, in the embodiment of the utility model, the elbow structure 1 is L-shaped elbow structure.

[0052] Specifically, in the embodiment of the utility model, the elbow structure 1 is divided into two half pipes along its axis; the two half pipes are fixedly connected through fasteners at the rotating section 103 after being combined.

[0053] Specifically, in the embodiment of the utility model, the device further comprises: a clamping spring structure 4, which is arranged on the support seat 3, covers the outside of the cable 5, and is used for fixing the cable 5 on the support seat 3.

[0054] Specifically, in the embodiment of the utility model, one shaft sleeve 3b, one bearing 3d, one bearing fixing structure, one elbow structure 1 and one clamping spring structure 4 constitute a cable rotating unit.

[0055] The number of the cable rotating units is two or more than two.

[0056] The two or more than two cable rotating units are staggered in the horizontal plane.

[0057] The lengths of the connecting sections 101 of the two or more than two cable rotating units are different, and the planes where the axes of the rotating sections 103 are located are staggered when the rotating sections 103 rotate.

[0058] More specifically, in the production operation process of the yard and the wharf, a mobile crane is often used for the transfer of goods. Since the crane is in a moving state during operation, the power supply of the crane also adopts a cable reel power supply mode. The cable reel is installed on the crane, one end of the power supply cable is connected to the cable reel, and the other end is connected to the ground cable transfer box. When the crane moves left and right, the cable reel retracts and releases the cable. When the crane moves away from the cable transfer box, the cable reel releases the cable, and the cable is laid on the ground. When the mobile crane approaches the cable transfer box, the cable reel winds up the cable, and the cable is wound on the cable reel.

[0059] In order to reduce the length of the power supply cable of the mobile crane, the power supply cable joint is generally arranged at the middle position of the equipment moving range. Whenever the gantry crane passes through the power supply cable joint position, the running direction of the cable needs to be changed. In the process of repeatedly bending the cable, the cable is easy to break and damage, and the insulation layer is easy to fail, which has certain safety hazards. How to ensure the safety and reliable completion of the reversing process of the power supply cable of the gantry crane during movement is a problem that needs to be solved by the equipment operation and maintenance personnel.

[0060] The utility model discloses a crane power cable reversing device, under the condition that two cranes share a track, conveniently realize cable reversing, prevent cable from being damaged, and specifically comprises: the support piece is fixed on the ground, the rotatable elbow pipe of inserting cable is equipped on the support piece, the elbow pipe is L type, and the clamping spring for fixing cable is arranged at both ends of the elbow pipe, the support piece contains the bottom plate fixed on the ground, the bottom plate contains bolt hole and is convenient for fixing with bolt anchor rod etc. on the spot, the support piece still contains bearing, shaft sleeve, baffle, nut, and the elbow pipe does not come off the support piece, wherein the elbow pipe breaks a half pipe on the cable reel side, and the two half pipes are fixed with the cable reel side cable through bolt.

[0061] It should be noted that the elbow pipe is arranged with the clamping spring close to the support piece on the power box side, the elbow pipe contains two roots staggered in length, the two elbow pipes are staggered in the ground height direction on the support piece fixed position, the two elbow pipes are staggered in the direction parallel to the track, preferably, the elbow pipe can be two or more, in summary, compared with the prior art, the crane power cable reversing device provided by the utility model has compact and flexible structure, reduces the occupied space, is convenient to maintain, concentrates the cables of multiple cranes in the power cable reversing device, shortens the cable length from the power box to the power cable reversing device, saves the cable size of the cable reel, saves the cost, avoids the repeated bending and wear of the cable when moving left and right in the turnover device, prolongs the service life of the cable, and compared with the prior art, has outstanding substantial features and relatively obvious technical effects.

[0062] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane power cable reversing device, characterized in that, The utility model relates to a crane power cable reversing device, including: a bottom plate (2) for connecting with the ground; a support seat (3) arranged on the bottom plate (2); a bent pipe structure (1) rotatably connected to the support seat (3); the bent pipe structure (1) is used for covering the cable (5) turning over part; the support seat (3) includes: a box body (3a), a shaft sleeve (3b), a bearing (3d) and a bearing fixing structure; the shaft sleeve (3b) is sleeved on the bent pipe structure (1); the bearing (3d) is sleeved on the shaft sleeve (3b), and the bearing (3d) is arranged in a slot hole (3a1) on the box body (3a); the bearing fixing structure is arranged on the box body (3a) and is used for limiting the position of the bearing (3d).

2. Crane power cable commutating device according to claim 1, characterized in that, the bearing fixing device includes: a spacer sleeve (3f) arranged in the slot hole (3a1) and abutting against the outer ring of the bearing (3d); a baffle (3c) arranged on the box body (3a) and located at the opening end of the slot hole (3a1); the other end of the slot hole (3a1) away from the baffle (3c) is provided with a hole shoulder structure (3a2); the hole shoulder structure (3a2) cooperates with the spacer sleeve (3f) to limit the displacement of the outer ring of the bearing (3d).

3. The crane power cable reversing device according to claim 2, wherein the hole shoulder structure (3a2) includes: an outer hole shoulder (3a21) and an inner hole shoulder (3a22); the outer hole shoulder (3a21) is coaxial with the inner hole shoulder (3a22) and is connected and arranged; the outer hole shoulder (3a21) is connected with the slot hole (3a1); the outer hole shoulder (3a21) is in abutting connection with the outer ring of the bearing (3d); the inner hole shoulder (3a22) has a gap between the bearing (3d) and the shaft sleeve (3b).

4. The crane power cable reversing device according to claim 2, wherein the baffle (3c) is provided with a fastening bolt thread structure on the box body (3a).

5. The crane power cable reversing device according to claim 2, wherein the shaft sleeve (3b) includes: a shaft body (3b1); a shaft shoulder (3b2) arranged on one end of the shaft body (3b1); a shaft sleeve thread structure (3b3) arranged on the other end of the shaft body (3b1); a nut (3e) threadedly connected to the shaft sleeve thread structure (3b3); the bearing (3d) is mounted and arranged on the shaft body (3b1) of the shaft sleeve (3b), the shaft shoulder (3b2) abuts on one side of the inner ring of the bearing (3d); the nut (3e) is threadedly fastened on the other side of the inner ring of the bearing (3d).

6. The crane power cable reversing device according to any one of claims 1 to 5, wherein the bent pipe structure (1) includes: a connecting section (101), an arc section (102) and a rotating section (103); the connecting section (101), the arc section (102) and the rotating section (103) are sequentially connected; The elbow structure (1) is connected with the shaft sleeve (3b) through the connecting section (101).

7. A crane power cable reversing device according to claim 6, characterized in that, The elbow structure (1) is an L-shaped elbow structure.

8. Crane power cable commutating device according to claim 7, characterized in that, The elbow structure (1) is divided into two half-pipes along its axis; the two half-pipes are fixedly connected through fasteners at the rotating section (103) after being combined.

9. Crane power cable commutating device according to claim 8, characterized in that, The device further comprises: A clamping spring structure (4) is arranged on the support seat (3), the clamping spring structure (4) covers the outside of the cable (5), and the clamping spring structure (4) is used to fix the cable (5) on the support seat (3).

10. A crane power cable reversing device according to claim 9, characterized in that, One shaft sleeve (3b), one bearing (3d), one bearing fixing structure, one elbow structure (1), and one clamping spring structure (4) constitute a set of cable rotating units; The number of the cable rotating units is two or more; The two or more cable rotating units are staggered in the horizontal plane; The lengths of the connecting sections (101) of the two or more cable rotating units are different, and the planes in which the axes of the rotating sections (103) are located are staggered when the rotating sections (103) rotate.

Images