Firmly connected shaft for crane

Abstract

The utility model relates to the technical field of shafts for cranes, in particular to a firmly connected shaft for a crane, which comprises a shaft body and a wheel body sleeved in the middle of the shaft body, first limit grooves are symmetrically arranged at two ends of the outer surface of the shaft body on two sides of the wheel body, and second limit grooves communicated with the first limit grooves are arranged on two sides of the wheel body. A limiting block is arranged in the first limiting groove, one side of the limiting block extends into the second limiting groove and abuts against the inner side wall of the second limiting groove, guide assemblies are symmetrically arranged on the two sides of the wheel body, clamping and fixing assemblies are arranged on the guide assemblies on the two sides in a sliding mode, and the inner walls of the clamping and fixing assemblies abut against the limiting block and the outer surface of the shaft body and apply pressing force. The connection between the machine shaft and the traveling wheel is firm and stable, so that the crane can operate more stably and safely.

Description

TECHNICAL FIELD

[0001] The utility model belongs to crane machine axle technical field, concretely is firm connection's crane machine axle. BACKGROUND

[0002] The crane is hoisting machinery that hoists and carries heavy objects vertically in a certain range, its machine axle is the cylindrical article worn in the crane wheel, is the part that supports rotation, and rotates together, mechanical part that transmits motion, torque, machine axle and the travelling wheel bear the weight of crane and the load when running, therefore need machine axle and travelling wheel to be connected closely and firmly together, can ensure the stability and safety of crane in the process of running. SUMMARY

[0003] The utility model solves the technical problem to provide firm connection's crane machine axle for above-mentioned defects, the connection between machine axle and travelling wheel is firm and stable, makes crane can more stable and safe operation.

[0004] The utility model discloses a firm connection's crane machine axle, including the axle body and the wheel body of setting in the axle body intermediate place, the two ends of the axle body outer surface of wheel body both sides symmetry is equipped with the first limit slot, wheel body both sides are equipped with the second limit slot with first limit slot intercommunication, the first limit slot inside is provided with the limit block, limit block one side extends to the second limit slot inside, with second limit slot inboard wall is opposite, wheel body both sides symmetry is equipped with the guide assembly, and the guide assembly on both sides is equipped with the clamping fixed assembly with sliding, clamping fixed assembly inwall with limit block, axle body outer surface opposite, and exert pressure tightly.

[0005] Further, the wheel body is equipped with the mounting hole that is matched with the axle body in the middle, the guide assembly includes, and the guide rail shell is set up on the wheel body lateral wall with the mounting hole as the middle front and back symmetry, and the sliding slot is set up on the guide rail shell along the length direction of guide rail shell.

[0006] Further, the clamping fixed assembly includes setting upper clamping block, lower clamping block, upper connecting portion, lower connecting portion, sliding block, the upper clamping block and lower clamping block are half circle arc structure, and the upper clamping block is symmetrically set up with lower clamping block in both ends of axle body, the upper connecting portion is symmetrically set up in the bottom of both ends of upper clamping block, the lower connecting portion is set up in the top of both ends of lower clamping block, the sliding block is symmetrically set up in the rear end face of upper clamping block, lower clamping block, sliding block and the sliding slot of guide rail shell sliding connection, the upper clamping block, lower clamping block inwall and axle body outer surface opposite, and are equipped with the accommodation slot that is matched with limit block, the upper connecting portion bottom end and lower connecting portion top end opposite, and are fixedly connected through bolt, nut.

[0007] Further, the limiting block is sleeved with a limiting sleeve on the outer surface of the shaft body away from the wheel body, and the limiting sleeve and the limiting block are fixedly connected through connecting bolts.

[0008] The utility model discloses the beneficial effect is:

[0009] The utility model discloses the cooperation of first limit groove, second limit groove, limiting block, guide component, clamping fixed subassembly, wheel body is sleeved on the shaft body, and limiting block enters first limit groove and second limit groove, and the movement of wheel body on the shaft body is limited to the circumferential, and the integrity between wheel body and shaft body is better, and stably rotates with the shaft body, and clamping fixed subassembly moves horizontally on guide component, and forms the limit of clamping fixed subassembly on wheel body, and generates the compression force, and makes the compression force between limiting block and the first limit groove of shaft body, further increases the integrity between shaft body, limiting block, wheel body, makes limiting block not easy because of the force of running and the phenomenon of breaking away between first limit groove and second limit groove, makes the connection between shaft body and wheel body more firm and stable, and makes the crane can more stable safe operation. BRIEF DESCRIPTION OF DRAWINGS

[0010] The foregoing and other objects, features and advantages of the utility model will become more apparent from the following detailed description, which proceeds with reference to the accompanying drawings.

[0011] Fig. 1 It is front view cutaway view of the utility model.

[0012] Fig. 2 It is side view of the utility model.

[0013] Fig. 3 It is top view of upper clamping block of the utility model

[0014] Wherein: 1, shaft body, 2, wheel body, 201, mounting hole, 3, first limit groove, 4, second limit groove, 5, limiting block, 6, guide component, 601, guide rail housing, 602, sliding slot, 7, clamping fixed subassembly, 701, upper clamping block, 702, lower clamping block, 703, upper connecting portion, 704, lower connecting portion, 705, sliding block, 706, accommodating groove, 707, bolt, 708, nut, 8, limiting sleeve, 9, connecting bolt. DETAILED DESCRIPTION

[0015] The utility model will be further described in connection with the drawings.

[0016] Refer to Figs. 1-3As shown, the firmly connected crane machine shaft includes a shaft body 1 and a wheel body 2 sleeved at the middle of the shaft body 1, the middle of the wheel body 2 is provided with a mounting hole 201 matched with the shaft body 1, the outer surface of the shaft body 1 at both sides of the wheel body 2 is symmetrically provided with two ends of a first limiting groove 3, the wheel body 2 at both sides is provided with a second limiting groove 4 in communication with the first limiting groove 3, the first limiting groove 3 is internally provided with a limiting block 5, one side of the limiting block 5 extends to the inside of the second limiting groove 4 and abuts against the inner side wall of the second limiting groove 4, the first limiting groove 3 cooperates with the second limiting groove 4 to form a rectangular space, the cross section of the limiting block 5 is also rectangular, which is arranged between the first limiting groove 3 and the second limiting groove 4, limits the circumferential movement of the wheel body 2 on the shaft body 1, and makes the integrality between the wheel body 2 and the shaft body 1 better, and stably rotates together with the shaft body 2.

[0017] The wheel body 2 is symmetrically provided with a guide assembly 6 at both sides, the guide assembly 6 is symmetrically provided with a clamping and fixing assembly 7, the inner wall of the clamping and fixing assembly 7 abuts against the limiting block 5 and the outer surface of the shaft body 1 and applies a pressing force, the clamping and fixing assembly moves horizontally along the guide assembly 6, limits the moving direction of the clamping and fixing assembly 7 on the wheel body 2, and makes the cooperation between the clamping and fixing assembly 7 and the wheel body 2 more stable when the wheel body 2 rotates.

[0018] Preferably, the guide assembly 6 includes a guide rail shell 601 symmetrically arranged on the side wall of the wheel body 2 in front of and behind the mounting hole 201, and a sliding groove 602 provided on the guide rail shell 601 in the length direction of the guide rail shell 601, the sliding groove 602 is a T-shaped structure, so that the sliding block 705 can stably reciprocate in the sliding groove 602, and the guide rail shell 601 is provided with an opening at both ends for the sliding block 705 to enter the sliding groove 602.

[0019] Preferably, the clamping and fixing assembly 7 comprises an upper clamping block 701, a lower clamping block 702, an upper connecting part 703, a lower connecting part 704, a sliding block 705, the upper clamping block 701 and the lower clamping block 702 are in semicircular arc structure, and the upper clamping block 701 and the lower clamping block 702 are symmetrically arranged at both ends of the shaft body 1, the upper connecting part 703 is symmetrically arranged at the bottom of both ends of the upper clamping block 701, the lower connecting part 704 is arranged at the top of both ends of the lower clamping block 702, the sliding block 705 is symmetrically arranged at the rear end face of the upper clamping block 701 and the lower clamping block 702, and the sliding block 705 is slidably connected with the sliding groove 602 of the guide rail shell 601, the upper clamping block 701 and the lower clamping block 702 are close to or away from each other along the sliding groove 602, the inner wall of the upper clamping block 701 and the lower clamping block 702 abuts against the outer surface of the shaft body 1, and a containing groove 706 matched with the limiting block 5 is arranged, the bottom end of the upper connecting part 703 abuts against the top end of the lower connecting part 704, and is fixedly connected through the bolt 707 and the nut 708, the upper clamping block 701 and the lower clamping block 702 are close to the outer surface of the shaft body 1 along the guide rail shell 601, and abut against the outer surface of the shaft body 1 and the limiting block 5, and when the upper and lower connecting parts are connected, the limiting block 5 and the shaft body 1 form a clamping force, and the guide rail shell 601 and the wheel body 2 are fixedly connected, and then the upper and lower clamping blocks form a limiting on the wheel body 2, the limiting block 5 is clamped and fixed, the limiting block 5 is not easy to be separated from the first limiting groove 3 and the second limiting groove 4 due to force during operation, the firmness and the integrity between the shaft body 1 and the wheel body 2 are further increased, and the crane can run more stably and safely.

[0020] Preferably, a limiting sleeve 8 is sleeved on the outer surface of the shaft body 1 away from the wheel body 2, and the limiting sleeve 8 and the limiting block 5 are fixedly connected through the connecting bolt 9. The limiting sleeve 8 is in interference fit on the shaft body 1, further limiting the axial movement of the limiting block 5, preventing it from being separated from the second limiting groove 4 due to external force, and the inner wall of the limiting sleeve 8 is provided with a clamping part matched with the first limiting groove 3, so as to limit the circumferential rotation of the limiting sleeve 5 on the shaft body 1, and make the installation more firm and stable.

[0021] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, any simple modification or equivalent change made according to the technical essence of the present application to the above embodiment falls within the protection scope of the present application.

Claims

1. A crane axle with a secure connection, comprising an axle body (1) and a wheel body (2) which is fitted in the middle of the axle body (1), characterized in that: The outer surface of the shaft body (1) on both sides of the wheel body (2) is symmetrically provided with a first limiting groove (3) at both ends, and the wheel body (2) is provided with a second limiting groove (4) in communication with the first limiting groove (3). The first limiting groove (3) is provided with a limiting block (5) inside, one side of the limiting block (5) extends to the inside of the second limiting groove (4), and the inside wall of the second limiting groove (4) is in abutment. The wheel body (2) is symmetrically provided with a guide assembly (6) on both sides, and the guide assembly (6) on both sides is provided with a clamping and fixing assembly (7) which is in abutment with the limiting block (5) and the outer surface of the shaft body (1) and applies a pressing force.

2. The securement of a crane shaft according to claim 1, characterized in that: The wheel body (2) is provided with a mounting hole (201) matched with the shaft body (1) in the middle, the guide assembly (6) comprises a guide rail shell (601) symmetrically arranged on the side wall of the wheel body (2) in front of and behind the mounting hole (201), and a sliding groove (602) is arranged on the guide rail shell (601) in the length direction of the guide rail shell (601).

3. The securement of a crane shaft according to claim 2, characterized in that: The clamping and fixing assembly (7) comprises an upper clamping block (701), a lower clamping block (702), an upper connecting portion (703), a lower connecting portion (704) and a sliding block (705). The upper clamping block (701) and the lower clamping block (702) are in semicircular arc structure, and the upper clamping block (701) and the lower clamping block (702) are symmetrically arranged at both ends of the shaft body (1). The upper connecting portion (703) is symmetrically arranged at the bottom of both ends of the upper clamping block (701). The lower connecting portion (704) is arranged at the top of both ends of the lower clamping block (702). The sliding block (705) is symmetrically arranged at the rear end face of the upper clamping block (701) and the lower clamping block (702), and the sliding block (705) is in sliding connection with the sliding groove (602) of the guide rail shell (601). The upper clamping block (701) and the lower clamping block (702) are close to or away from each other along the sliding groove (602). The inner wall of the upper clamping block (701) and the lower clamping block (702) is in abutment with the outer surface of the shaft body (1), and is provided with a containing groove (706) matched with the limiting block (5). The bottom end of the upper connecting portion (703) is in abutment with the top end of the lower connecting portion (704), and is fixedly connected through the bolt (707) and the nut (708).

4. The securement of the crane shaft according to claim 1, characterized in that: The outer surface of the shaft body (1) away from the wheel body (2) side is provided with a limiting sleeve (8), and the limiting sleeve (8) and the limiting block (5) are fixedly connected through the connecting bolt (9).

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