Balance beam of crane

Abstract

The utility model relates to the technical field of cranes, in particular to a crane balance beam which comprises a horizontally arranged balance beam body, a horizontally arranged first sliding groove is formed in the bottom end of the balance beam body, and second sliding grooves communicated with the first sliding groove are symmetrically formed in the front side and the rear side of the balance beam body. Through the arrangement of a first sliding groove, a second sliding groove, a round hole, a sliding assembly, a main sliding block, a mounting block, an auxiliary sliding block, a positioning plate, a positioning hole, a positioning bolt and a positioning nut, when a heavy object is hoisted, the positioning bolt is detached, and then the main sliding block is moved, so that the main sliding block slides on the inner side of the first sliding groove, and the auxiliary sliding block slides on the inner side of the second sliding groove; when the distance between the mounting blocks is moved to the position matched with the heavy object, the positioning bolts are mounted to complete the positioning of the mounting blocks, and the mounting blocks can be adjusted according to the area of the heavy object through the arrangement of the sliding assemblies, so that the hoisting stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, concretely is a crane balance beam. BACKGROUND

[0002] The crane balance beam is an important component of hoisting machine, is widely used in the hoisting engineering, and the main role of the balance beam is keeping the balance of the hoisted equipment, avoiding the damage of the equipment by the sling, simultaneously, it can shorten the height of the sling, reduces the hoisting height of the movable pulley, thereby reduces the horizontal pressure that the equipment bears when hoisting, avoids damaging the equipment, when hoisting by multiple machines, adopting the balance beam can also reasonably distribute or balance the load of each lifting point, ensures the safety and high efficiency of hoisting operation, and the crane balance beam plays a vital role in hoisting operation, and through reasonable design and application, the safety and efficiency of hoisting operation can be greatly improved.

[0003] The existing crane balance beam is widely applied, but the lifting point of the bottom end of the existing balance beam cannot be adjusted according to requirements, when different area weights are suspended, unstable suspension can easily occur, and the height of the supporting leg of the existing balance beam cannot be adjusted, when connecting the weight and the balance beam, the balance beam is usually lifted and suspended, at this time, the balance beam can be shaken by wind or device vibration, leading to the connection between the weight and the balance beam being troublesome, therefore, the crane balance beam is provided for the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a crane balance beam to solve the problems that the lifting point of the bottom end of the existing balance beam cannot be adjusted according to requirements and the height of the supporting leg of the existing balance beam cannot be adjusted.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A crane balance beam, including the balance beam body that horizontal setting, the first sliding slot that horizontal setting is set up in the balance beam body bottom, the second sliding slot that symmetrically sets up with the first sliding slot through in the balance beam body front and back two sides, the round hole that symmetrically is equipped with from front to back through the balance beam body and with the first sliding slot through on the second sliding slot upper and lower two sides, the sliding assembly that is equipped with in the first sliding slot inboard, the fixed block that is equipped with with the balance beam body left and right two ends fixed connection on the balance beam body left and right two ends, the fixed block inside screw connection has the vertical setting silk thread, the vertical setting and with the fixed block sliding connection limit rod are equipped with on the silk thread front and back two sides, the circular ring that is fixedly connected with the rotating motor is fixedly connected with the limit rod top, the bearing that is installed with the silk thread bottom is fixedly connected with the bearing inner ring, the connecting plate that is fixedly connected with the bearing outer ring bottom is fixedly connected with the silk thread bottom.

[0007] Preferably, the sliding assembly comprises a main sliding block slidingly connected in the first sliding groove, the bottom end of the main sliding block and the top end of the balance beam body are fixedly connected with mounting blocks, the front and rear sides of the main sliding block are symmetrically provided with auxiliary sliding blocks fixedly connected with the main sliding block, the side away from the main sliding block of the auxiliary sliding block is fixedly connected with a positioning plate, the inside of the positioning plate is provided with a positioning hole penetrating through the positioning plate from front to back, the inside of the positioning hole is provided with a positioning bolt located in the inside of the partial circular hole, and the outside of the positioning bolt is spirally connected with a positioning nut.

[0008] Preferably, the number of the circular holes is multiple, the circular holes are uniformly distributed on the upper and lower sides of the second sliding groove, the inner diameters of the circular holes and the positioning hole are the same, the connection mode of the auxiliary sliding block and the second sliding groove is sliding connection, the top end of the lead screw is fixedly connected with the bottom end of the output shaft of the rotating motor, and the bottom end of the limiting rod is fixedly connected with the top end of the connecting plate.

[0009] Preferably, the bottom end of the connecting plate is fixedly connected with a mounting plate, the bottom end of the mounting plate is symmetrically provided with clamping grooves, the top end of the mounting plate is symmetrically provided with fixed holes penetrating through the clamping grooves, the inside of the clamping groove is clampingly connected with a clamping block, the bottom end of the clamping block is fixedly connected with a rubber plate, the top end of the clamping block is provided with a threaded groove, and the inside of the threaded groove is spirally connected with a fixed bolt.

[0010] Preferably, the fixed hole and the threaded groove are vertically aligned, the fixed bolt is located in the inside of the fixed hole, and the top end of the rubber plate is closely attached to the bottom end of the mounting plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、In the utility model, through the first sliding groove, the second sliding groove, the circular hole, the sliding assembly, the main sliding block, the mounting block, the auxiliary sliding block, the positioning plate, the positioning hole, the positioning bolt and the positioning nut are set, when heavy object hoisting is carried out, the positioning bolt is removed, then the main sliding block is moved, the main sliding block slides in the inside of the first sliding groove, the auxiliary sliding block slides in the inside of the second sliding groove, until the distance between the mounting blocks is moved to the position matched with the heavy object, the positioning bolt is installed, and the positioning of the mounting block is completed, the setting of the sliding assembly enables the mounting block to be adjusted according to the area of the heavy object, so that the stability of hoisting is improved.

[0013] 2. The utility model discloses a fixing block, screw rod, limiting rod, circular ring, rotating motor, bearing, connecting plate, mounting plate, clamping groove, fixing hole, clamping block, rubber plate, thread groove and fixed bolt are set up, and when hoisting heavy object, rotating motor is started, because the limiting of fixing block to bearing top end screw rod, limiting rod slides in the inboard of fixing block at this moment, connecting plate and mounting plate move downward, until rubber plate and ground close adhesion, rubber plate can provide greater friction, guarantee the stability of device, at this moment, it is more convenient to fix heavy object with mounting block, and the connection of heavy object and mounting block will not be influenced by the wind blowing or device vibration. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is whole structure schematic diagram of the utility model;

[0015] Figure 2 It is rubber plate mounting structure schematic diagram of the utility model;

[0016] Figure 3 It is positioning bolt mounting structure schematic diagram of the utility model;

[0017] Figure 4 It is sliding assembly structure schematic diagram of the utility model;

[0018] Figure 5 It is balance beam body section structure schematic diagram of the utility model.

[0019] In the drawing: 1, balance beam body;2, first sliding groove;3, second sliding groove;4, round hole;5, sliding assembly;51, main sliding block;52, mounting block;53, auxiliary sliding block;54, positioning plate;55, positioning hole;56, positioning bolt;57, positioning nut;6, fixing block;7, screw rod;8, limiting rod;9, circular ring;10, rotating motor;11, bearing;12, connecting plate;13, mounting plate;14, clamping groove;15, fixing hole;16, clamping block;17, rubber plate;18, thread groove;19, fixed bolt. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0021] In the description of the utility model, need understanding is, the orientation word such as " before, after, top, bottom, left, right " " horizontal, vertical, perpendicular, horizontal " and " top, bottom " and so on indicated orientation or positional relationship usually is based on the orientation or positional relationship shown in drawing, just is for the convenience of describing the utility model and simplifying description, under the condition without making opposite statement, these orientation words do not indicate and suggest the device or element must have the specific orientation or with the specific orientation structure and operation, therefore can not be understood as the restriction of the protection scope of the utility model;The orientation word " inside, outside " refers to the inside and outside relative to the contour of each component.

[0022] In addition, it needs to be explained that the use of " first " " second " and other words to limit parts is only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore can not be understood as the restriction of the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0024] A crane balance beam, including the balance beam body 1 of horizontal arrangement, the first runner 2 of horizontal arrangement is set to the balance beam body 1 bottom end, the second runner 3 that is set to the first runner 2 through with the balance beam body 1 front and back two sides symmetry is set, the round hole 4 that is set to the first runner 2 through with the balance beam body 1 from front to back and is symmetrically arranged on the second runner 3 upper and lower sides, the sliding assembly 5 is equipped in the first runner 2 inner side, the fixed block 6 that is fixedly connected with the balance beam body 1 left and right two ends is symmetrically arranged to the balance beam body 1 left and right two ends, the fixed block 6 inside screw connection has the vertical setting silk rod 7, the vertical setting and with the fixed block 6 sliding connection limit rod 8 is symmetrically arranged on the silk rod 7 front and back two sides, the circular ring 9 is fixedly connected to the limit rod 8 top end, the rotating motor 10 is fixedly connected to the circular ring 9 inner side, the bearing 11 is installed to the silk rod 7 bottom end and the silk rod 7 bottom end with the bearing 11 inner ring fixed connection, the connecting plate 12 is fixedly connected to the bearing 11 outer ring bottom end.

[0025] The sliding assembly 5 comprises a main sliding block 51 slidingly connected in the first sliding groove 2, the bottom end of the main sliding block 51 is fixedly connected with the mounting block 52 at the top end of the balance beam body 1, the front and rear sides of the main sliding block 51 are symmetrically provided with auxiliary sliding blocks 53 fixedly connected with the main sliding block 51, the side away from the main sliding block 51 of the auxiliary sliding block 53 is fixedly connected with a positioning plate 54, the positioning plate 54 is internally provided with a positioning hole 55 penetrating the positioning plate 54 from front to back, the inner side of the positioning hole 55 is provided with a positioning bolt 56 located in the inner side of the partial circular hole 4, the outer side of the positioning bolt 56 is screw-connected with a positioning nut 57, the setting of the sliding assembly 5 enables the mounting block 52 to be adjusted according to the area of the weight, thereby improving the stability of hoisting, the number of the circular holes 4 is multiple, the circular holes 4 are uniformly distributed on the upper and lower sides of the second sliding groove 3, the inner diameters of the circular holes 4 and the positioning hole 55 are the same, the connection mode of the auxiliary sliding block 53 and the second sliding groove 3 is sliding connection, the top end of the lead screw 7 is fixedly connected with the bottom end of the output shaft of the rotating motor 10, the bottom end of the limiting rod 8 is fixedly connected with the top end of the connecting plate 12, the rotation of the lead screw 7 can drive the limiting rod 8 to slide in the inner side of the fixed block 6, thereby adjusting the height of the device, the bottom end of the connecting plate 12 is fixedly connected with the mounting plate 13, the bottom end of the mounting plate 13 is symmetrically provided with clamping grooves 14, the top end of the mounting plate 13 is symmetrically provided with fixed holes 15 penetrating the clamping grooves 14, the clamping grooves 14 are internally clampedly connected with clamping blocks 16, the bottom end of the clamping block 16 is fixedly connected with rubber plates 17, the top end of the clamping block 16 is provided with screw grooves 18, the inner side of the screw groove 18 is screw-connected with fixed bolts 19, the rubber plate 17 can provide a larger friction force to ensure the stability of the device, the fixed holes 15 are vertically aligned with the screw grooves 18, the fixed bolts 19 are located in the inner side of the fixed holes 15, and the top end of the rubber plate 17 is closely attached to the bottom end of the mounting plate 13.

[0026] Work flow: before use, first install the device on each component, insert the clamping block 16 at the top of the rubber plate 17 into the clamping groove 14 at the bottom of the mounting plate 13, and make the threaded groove 18 at the top of the clamping block 16 vertically align with the fixing hole 15, insert the fixing bolt 19 into the fixing hole 15 and screw it into the threaded groove 18 to complete the installation of the rubber plate 17, then adjust the distance between the mounting blocks 52 according to the area of the weight, unscrew the positioning nut 57 from the outside of the positioning bolt 56, pull out the positioning bolt 56 from the inside of the positioning hole 55 and the circular hole 4, then move the main sliding block 51 to slide in the first sliding groove 2, and the auxiliary sliding block 53 to slide in the second sliding groove 3, until the distance between the mounting blocks 52 is moved to the position matched with the weight, insert the positioning bolt 56 into the positioning hole 55 on the positioning plate 54 and make the positioning bolt 56 pass through the circular hole 4 on the balance beam body 1, then screw the positioning nut 57 on the outside of the positioning bolt 56 to complete the positioning of the mounting block 52, the sliding assembly 5 can adjust the distance between the mounting blocks 52 according to the area of the weight, thereby improving the stability of hoisting, then fix the mounting block 52 at the top of the balance beam body 1 with the hoisting machine, then start the hoisting machine to move above the weight, start the rotating motor 10 inside the circular ring 9, and the rotating motor 10 output end drives the screw rod 7 to rotate, because the fixed block 6 limits the screw rod 7 at the top of the bearing 11, the limiting rod 8 slides in the fixed block 6 at this time, the connecting plate 12 and the mounting plate 13 move downward until the rubber plate 17 closely contacts with the ground, the rubber plate 17 can provide larger friction to ensure the stability of the device, finally fix the weight with the mounting block 52 at the bottom of the main sliding block 51, and the device can be hoisted, when the rubber plate 17 is seriously worn, the fixing bolt 19 can be removed to replace the rubber plate 17.

[0027] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A crane counterbalance beam comprising a horizontally arranged counterbalance beam body (1), characterized in that: The bottom end of the balance beam body (1) is provided with a horizontally arranged first sliding groove (2), the front and back sides of the balance beam body (1) are symmetrically provided with a second sliding groove (3) penetrating the first sliding groove (2), the upper and lower sides of the second sliding groove (3) are symmetrically provided with a circular hole (4) penetrating the balance beam body (1) from front to back and penetrating the first sliding groove (2), the inner side of the first sliding groove (2) is provided with a sliding assembly (5), the left and right ends of the balance beam body (1) are symmetrically provided with a fixed block (6) fixedly connected with the left and right ends of the balance beam body (1), the inside of the fixed block (6) is screw-connected with a vertically arranged screw rod (7), the front and back sides of the screw rod (7) are symmetrically provided with a vertically arranged limiting rod (8) in sliding connection with the fixed block (6), the top end of the limiting rod (8) is fixedly connected with a circular ring (9), the inner side of the circular ring (9) is fixedly connected with a rotating motor (10), the bottom end of the screw rod (7) is provided with a bearing (11) and the bottom end of the screw rod (7) is fixedly connected with the inner ring of the bearing (11), the outer ring of the bearing (11) is fixedly connected with a connecting plate (12) at the bottom end.

2. A crane girder according to claim 1, characterised in that: The sliding assembly (5) comprises a main sliding block (51) in sliding connection with the inner side of the first sliding groove (2), the bottom end of the main sliding block (51) and the top end of the balance beam body (1) are fixedly connected with an installation block (52), the front and back sides of the main sliding block (51) are symmetrically provided with an auxiliary sliding block (53) fixedly connected with the main sliding block (51), the side away from the main sliding block (51) of the auxiliary sliding block (53) is fixedly connected with a positioning plate (54), the inside of the positioning plate (54) is provided with a positioning hole (55) penetrating the positioning plate (54) from front to back, the inner side of the positioning hole (55) is provided with a positioning bolt (56) located in the inner side of the partial circular hole (4), the outer side of the positioning bolt (56) is screw-connected with a positioning nut (57).

3. A crane girder according to claim 2, characterised in that: The number of the circular holes (4) is multiple, the circular holes (4) are evenly distributed on the upper and lower sides of the second sliding groove (3), the inner diameters of the circular holes (4) and the positioning hole (55) are the same, the auxiliary sliding block (53) is in sliding connection with the second sliding groove (3), the top end of the screw rod (7) is fixedly connected with the bottom end of the output shaft of the rotating motor (10), the bottom end of the limiting rod (8) is fixedly connected with the top end of the connecting plate (12).

4. A crane girder according to claim 1, characterised in that: The bottom end of the connecting plate (12) is fixedly connected with an installation plate (13), the bottom end of the installation plate (13) is symmetrically provided with a clamping groove (14), the top end of the installation plate (13) is symmetrically provided with a fixed hole (15) penetrating the clamping groove (14), the inner side of the clamping groove (14) is clampingly connected with a clamping block (16), the bottom end of the clamping block (16) is fixedly connected with a rubber plate (17), the top end of the clamping block (16) is provided with a threaded groove (18), the inner side of the threaded groove (18) is screw-connected with a fixed bolt (19).

5. A crane girder according to claim 4, characterised in that: The fixed hole (15) is vertically aligned with the threaded groove (18), the fixed bolt (19) is located in the inner side of the fixed hole (15), and the top end of the rubber plate (17) is tightly attached to the bottom end of the installation plate (13).

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