Tail supporting structure of crane

Abstract

The utility model discloses a crane tail supporting structure, relates to the technical field of cranes, and aims to solve the technical problem that the stability of a crane swivel mechanism is affected due to the fact that the tail is unbalanced when a current balancing weight support does not work, the crane tail supporting structure comprises a big arm, a support, a supporting plate, an adjusting rod and a pressing piece, a rotating disc is arranged at the lower end of the large arm, the bottom of the rotating disc is rotationally installed in the rotating body, a lifting arm is arranged at the upper end of the large arm, a groove is formed in the front end of the supporting plate, the other side, attached to the rotating body, of the pressing piece is in butt joint with the groove, and an adaptive frame is arranged on the upper side of one end of the supporting plate and attached to the large arm. A bottom groove is formed in the rear side of the lower end face of the supporting plate, a fixing block is fixed to the inner end of the bottom groove, and an adjusting block is slidably installed at the outer end of the bottom groove through a guide rail. The assembling mechanism has the advantages that the assembling mechanism assists in balancing, the supporting stability is ensured, and meanwhile the influence of the counter weight on a rotating body structure is reduced when the assembling mechanism does not work.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field more specifically, relate to a crane tail support structure. BACKGROUND

[0002] The crane, also known as a hoist, a trolley, a flight crane, is a kind of multi-motion hoisting machinery for vertically lifting and horizontally carrying heavy objects within a certain range. The working principle of the crane is mainly based on the principle of lever and the principle of pulley block. Through the combination of pulley block, work and effort can be saved and the direction of force can be changed. At the same time, the various mechanisms of the crane work cooperatively to realize the vertical lifting and horizontal carrying of heavy objects.

[0003] When the crane jib is working, the front end is unbalanced, and the jib bears a great gravity. In order to maintain the overall balance of the crane, a support mechanism needs to be arranged at the tail of the crane. The existing support mostly directly adopts counterweight balance, and a counterweight block is additionally arranged at the tail. The counterweight block is installed at the tail of the crane through a support structure. The support is generally bolted and locked in the corresponding installation station. This assembly method has a relatively simple structure and is not convenient for auxiliary balance operation. When the crane is not working, the counterweight block at the tail is relatively heavy, which affects the stability of the swivel mechanism of the crane. In view of this, the present utility model provides a crane tail support structure. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings of the prior art, adapting to the actual needs, and providing a crane tail support structure to solve the technical problem that the counterweight block support causes the tail to be unbalanced when not working, affecting the stability of the swivel mechanism of the crane.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a crane tail support structure, comprising a large arm, a support, a support plate, an adjusting rod and a pressing piece, the upper end of the support is provided with a swivel body, the lower end of the large arm is provided with a turntable, and the bottom of the turntable is rotatably installed in the swivel body, the upper end of the large arm is provided with a jib, the front end of the support plate is provided with a groove, and the groove is attached to one side of the swivel body, the pressing piece is attached to the other side of the swivel body and is connected with the groove part, the upper side of one end of the support plate is provided with an adaptive frame, and the adaptive frame is attached to the large arm, the rear side of the lower end surface of the support plate is provided with a bottom groove, and the bottom groove is connected with the groove through a movable hole, the inner end of the bottom groove is fixedly provided with a fixed block, the outer end of the bottom groove is slidably installed with an adjusting block through a guide rail, the adjusting block is installed with a U-shaped strip, the outer end of the support plate is provided with an adjusting groove, and the lower end of the adjusting rod passes through the adjusting groove and is fixed on the adjusting block, and the upper end of the adjusting rod is sleeved with a counterweight block.

[0006] The utility model discloses when installing, the adaptive frame is inserted through the rod hole butt joint rod, and the support plate front end groove butt joint swivel outside, and the tablet card joint swivel one side is pressed, and the both ends of tablet are fixedly connected with the top of U strip through bolt, the adaptive frame front end inclined surface fits the inclined surface of big arm at this moment, and disc card slot butt joint turntable part, and the adjusting block displacement is driven to start hydraulic rod, and the U strip displacement is driven to adjust the block, and the U strip traction tablet, and the tablet and the groove combination circular groove clamping swivel, make the front end of support plate clamping positioning on swivel, and the rope is installed on support plate and big arm respectively through connecting sleeve, and big arm, rope and support plate form triangle, and the structural stability is strengthened, and the counterweight sleeve is connected on adjusting rod, and the stability of hoisting device is maintained, and the device is installed and fixed through the clamping type connection mode, and the whole assembly is on swivel outside, can deflect along with hoisting arm, ensure that the support is stable, and the rope structure maintains tail end stability, and the adaptive frame is inserted and fixed on support plate, and the rod position makes the adaptive frame only carry out lifting displacement at this moment, and when the adaptive frame fits big arm, the inclined surface of big arm presses the inner inclined surface of adaptive frame, and the big arm position makes the adaptive frame unable to carry out lifting type displacement, and the adaptive frame is relatively fixed at this moment, and the front foot part of adaptive frame presses the upper side of turntable in disc card slot, realize the fixed type connection of support plate front end and turntable, and the reinforcement of connecting position is completed through above-mentioned structure combination, and the adaptive frame structure realizes the connection fixed of device and turntable structure, and the tablet structure realizes the connection fixed of device and swivel structure, and the adaptive frame and tablet are fixedly installed on support plate, and the stability of turntable and swivel connection is maintained through support plate structure, realize multi-point support, and ensure the safety of device whole operation.

[0007] Preferably, one end of the support plate is fixed with an insertion rod on the upper side, the lower end of the adaptive frame is provided with a rod hole, and the rod hole is butt joint with the insertion rod, the inner side of the adaptive frame fits the inner inclined surface, and the inner inclined surface is adapted to the outer inclined surface of the big arm.

[0008] Preferably, the upper side of the groove is provided with a disc card slot, and the disc card slot is butt joint with the turntable, and the foot of the front end of the adaptive frame is pressed into the upper part of the turntable in the disc card slot.

[0009] Preferably, the rear side of the big arm and the upper end surface of the support plate are both fixed with a connecting sleeve, and the connecting sleeves are connected through a rope.

[0010] Preferably, the connecting end of the rope is provided with a stud, and the stud is screw mounted on the corresponding connecting sleeve.

[0011] Preferably, a hydraulic rod is embedded and installed on the fixed block, and the outer end of the hydraulic rod is fixed on the adjusting block.

[0012] Preferably, the arc part of the U-shaped strip is fixed on the adjusting block arc surface through a bolt, and the both ends of the U-shaped strip pass through the movable hole and are fixedly connected on the tablet through a bolt.

[0013] Compared with the prior art, the utility model has the advantages of

[0014] 1, the utility model discloses a support plate is installed, and when installing, the adaptive frame is inserted through the rod hole and is connected with the rod, and the front end groove of the support plate is connected with the outside of the rotating body, and the pressing piece is fixed on the other side of the rotating body through the clamping, and the two ends of the pressing piece are fixedly connected with the top end of the U-shaped strip through the bolt, and at this time, the front end inclined surface of the adaptive frame is attached to the inclined surface of the large arm, and the disc clamping groove is connected with the rotating disc part, and the adjusting block is displaced by starting the hydraulic rod, and the U-shaped strip is displaced by the adjusting block, and the U-shaped strip pulls the pressing piece, and the pressing piece and the groove are combined into a circular groove to clamp the rotating body, so that the front end of the support plate is clamped and positioned on the rotating body, and the lifting rope is installed on the support plate and the large arm through the connecting sleeve, and the large arm, the lifting rope and the support plate form a triangle, so that the structural stability is enhanced, the counterweight sleeve is connected to the adjusting rod, and the stability of the hoisting device is maintained, the device is installed and fixed through the clamping type connection mode, and is integrally assembled on the outside of the rotating body, can deflect with the hoisting arm, ensures the stability of the support, and the tail end stability of the lifting rope structure is maintained.

[0015] 2, the utility model discloses still through design adaptive frame, adaptive frame plug -in type installation is in support plate, when the rod position makes adaptive frame only lift displacement, when adaptive frame is attached to the large arm, the inner inclined surface of the large arm is pressed down the inclined surface of adaptive frame, and the large arm limit makes adaptive frame unable to lift type displacement, at this time, the adaptive frame is relatively fixed, and the front foot part of the adaptive frame presses down the upper side of the rotating disc in the disc clamping groove, so that the front end of the support plate is fixedly connected with the rotating disc, the reinforcing of the connecting part is completed through the above-mentioned structure combination, the adaptive frame structure realizes the connection and fixation of the device and the rotating disc structure, the pressing piece structure realizes the connection and fixation of the device and the rotating body structure, the adaptive frame and the pressing piece are fixedly installed on the support plate, the stability of the rotating disc and the rotating body connection is maintained through the support plate structure, multi-point support is realized, and the safety of the overall operation of the device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view structure schematic drawing of the utility model;

[0017] Figure 2 It is the support plate overhead structure schematic drawing of the utility model;

[0018] Figure 3 It is the adaptive frame connecting structure schematic drawing of the utility model;

[0019] Figure 4 It is the support plate structure schematic drawing of the utility model;

[0020] Figure 5 It is the pressing piece structure schematic drawing of the utility model;

[0021] Figure 6 It is the bottom view structure schematic drawing of the utility model.

[0022] Explanation of reference signs in the figure: 1, hoist arm; 2, large arm; 201, rotary disc; 3, support; 301, rotating body; 4, support plate; 401, counterweight block; 402, adaptive frame; 403, lifting rope; 404, connecting sleeve; 405, adjusting rod; 406, disc clamping groove; 407, rod hole; 408, insertion rod; 409, groove; 410, bottom groove; 411, movable hole; 412, adjusting groove; 5, pressing piece; 6, fixed block; 601, hydraulic rod; 7, adjusting block; 701, U-shaped strip. DETAILED DESCRIPTION

[0023] As Figures 1 to 4 shown, the utility model relates to a crane tail support structure, including large arm 2, support 3, support plate 4, adjusting rod 405 and pressing piece 5, the upper end of support 3 is equipped with rotating body 301, the lower end of large arm 2 is equipped with rotary disc 201, and the bottom of rotary disc 201 is rotatably installed in rotating body 301, and the upper end of large arm 2 is equipped with hoist arm 1, the front end of support plate 4 is equipped with groove 409, and groove 409 is attached to one side of rotating body 301, and pressing piece 5 is attached to the other side of rotating body 301 and is butt joint with groove 409 part, and the upper side of one end of support plate 4 is equipped with adaptive frame 402, and adaptive frame 402 is attached to large arm 2, and the upper side of one end of support plate 4 is fixed with insertion rod 408, and the lower end of adaptive frame 402 is equipped with rod hole 407, and rod hole 407 is butt joint insertion rod 408, and the connecting mode of insertion type makes that adaptive frame 402 can only carry out lifting displacement after limiting, and the inner side of adaptive frame 402 is attached to the inner inclined surface, and the inner inclined surface is adapted to the outer inclined surface of large arm 2, and through the butt joint of inclined surface, large arm 2 is pressed down to limit adaptive frame 402, so that adaptive frame 402 is relatively fixed, and the upper side of groove 409 is equipped with disc clamping groove 406, and disc clamping groove 406 is butt joint rotary disc 201, and the foot of the front end lower side of adaptive frame 402 is pressed into the upper part of rotary disc 201 in disc clamping groove 406, and adaptive frame 402 is fixed through the above structure, and through the fixed adaptive frame 402, rotary disc 201 is pressed down, the stability of the connecting part is improved, and the rear side of large arm 2 and the upper end surface of support plate 4 are both fixed with connecting sleeve 404, and connecting sleeve 404 is connected through lifting rope 403, and through the suspension type connection of lifting rope 403, a triangular structure is formed to ensure stability, and the connecting end of lifting rope 403 is equipped with stud, and stud is screw mounted on the corresponding connecting sleeve 404, and the stability of the screw connection mode is high, and the mode can be disassembled and replaced.

[0024] As Figures 2 to 6As shown, the utility model relates to a crane tail support structure, including big arm 2, support 3, support plate 4, adjusting rod 405 and tablet 5, the rear side of support plate 4 lower end surface is provided with bottom groove 410, and bottom groove 410 is connected with recess 409 through movable hole 411, the inner end of bottom groove 410 is fixed with fixed block 6, the outer end of bottom groove 410 is slidably installed with adjusting block 7 through guide rail, hydraulic rod 601 is embeddedly installed on fixed block 6, and the outer end of hydraulic rod 601 is fixed on adjusting block 7, adjusting block 7 is displaced by starting hydraulic rod 601, U-shaped strip 701 is installed on adjusting block 7, adjusting block 7 synchronously drives U-shaped strip 701 displacement, the arc part of U-shaped strip 701 is fixed on the camber of adjusting block 7 through bolt, the both ends of U-shaped strip 701 pass movable hole 411 and are fixedly connected on tablet 5 through bolt, U-shaped strip 701 pulls tablet 5, and the clamping friction is enhanced, the outer end of support plate 4 is provided with adjusting groove 412, and the lower end of adjusting rod 405 passes adjusting groove 412 and is fixed on adjusting block 7, and the upper end of adjusting rod 405 is sleeved with counterweight 401.

[0025] Working principle: the utility model relates to a crane tail support structure, when installing, will adapt frame 402 through bar hole 407 butt joint plug rod 408, the outer side of support plate 4 front end recess 409 butt joint swivel body 301, and tablet 5 is clamped swivel body 301 other side, and the both ends of tablet 5 are fixedly connected with the top end of U-shaped strip 701 through bolt, at this time, the front end inclined surface of adapt frame 402 is attached to the inclined surface of big arm 2, disc card groove 406 butt joint swivel disc 201 part, and adjusting block 7 is displaced by starting hydraulic rod 601, and U-shaped strip 701 is displaced by adjusting block 7, and tablet 5 is pulled by U-shaped strip 701, and tablet 5 and recess 409 are combined into circular groove and hold swivel body 301, so that the front end of support plate 4 is clamped and positioned on swivel body 301, and hoisting rope 403 is installed on support plate 4 and big arm 2 through connecting sleeve 404 respectively, and big arm 2, hoisting rope 403 and support plate 4 form a triangle, and adapt frame 402 is installed on support plate 4 in plug-in mode, at this time, plug rod 408 limits adapt frame 402 to only carry out lifting displacement, when adapt frame 402 is attached to big arm 2, the inner inclined surface of adapt frame 402 is pressed down by the inclined surface of big arm 2, and big arm 2 limits adapt frame 402 to be unable to carry out lifting displacement, at this time, adapt frame 402 is relatively fixed, and the front foot part of adapt frame 402 presses down the upper side of swivel disc 201 in disc card groove 406, realize the fixed type connection of support plate 4 front end and swivel disc 201, and the reinforcement of connecting part is completed through the above-mentioned structure combination.

[0026] The utility model discloses the embodiment discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily understand the spirit of the utility model according to the above embodiment, and make different extension and change, but as long as do not depart from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A crane tail support structure comprising a boom (2), a support base (3), a support plate (4), an adjusting rod (405) and a pressure plate (5), characterized in that: The upper end of the support (3) is provided with a rotating body (301), the lower end of the large arm (2) is provided with a rotating disc (201), and the bottom of the rotating disc (201) is rotatably installed in the rotating body (301), the upper end of the large arm (2) is provided with a lifting arm (1), the front end of the support plate (4) is provided with a groove (409), and the groove (409) is attached to one side of the rotating body (301), the pressing plate (5) is attached to the other side of the rotating body (301) and the groove (409) part, one end of the support plate (4) is provided with an adaptive frame (402), and the adaptive frame (402) is attached to the large arm (2), the bottom groove (410) is provided on the rear side of the lower end surface of the support plate (4), and the bottom groove (410) and the groove (409) are connected through the movable hole (411), the fixed block (6) is fixed in the inner end of the bottom groove (410), the adjusting block (7) is slidably installed on the outer end of the bottom groove (410) through the guide rail, the U-shaped strip (701) is installed on the adjusting block (7), the adjusting groove (412) is provided on the outer end of the support plate (4), and the adjusting rod (405) is fixed on the adjusting block (7) after penetrating through the adjusting groove (412), and the counterweight block (401) is sleeved on the upper end of the adjusting rod (405).

2. A back support structure for a crane according to claim 1, characterised in that: One end of the support plate (4) is fixed with a plug rod (408), and the lower end of the adaptive frame (402) is provided with a rod hole (407) which is connected with the plug rod (408).

3. A backspan support structure for a crane according to claim 2, characterised in that: The upper side of the groove (409) is provided with a disc clamping groove (406), and the disc clamping groove (406) is connected with the rotating disc (201), and the foot of the front end of the adaptive frame (402) is pressed into the disc clamping groove (406) to clamp the upper part of the rotating disc (201).

4. A backspan support structure for a crane according to claim 3, characterised in that: The rear side of the large arm (2) and the upper end surface of the support plate (4) are both fixed with a connecting sleeve (404), and the connecting sleeves (404) are connected through the lifting rope (403).

5. A backspan support structure for a crane according to claim 4, characterised in that: The connecting end of the lifting rope (403) is provided with a stud, and the stud is threadedly installed on the corresponding connecting sleeve (404).

6. A back support structure for a crane as claimed in claim 1, characterised in that: The hydraulic rod (601) is embeddedly installed on the fixed block (6), and the outer end of the hydraulic rod (601) is fixed on the adjusting block (7).

7. A back support structure for a crane as claimed in claim 1, characterised in that: The arc part of the U-shaped strip (701) is fixed on the arc surface of the adjusting block (7) through bolts, and the two ends of the U-shaped strip (701) are fixed on the pressing plate (5) through bolts after penetrating through the movable hole (411).

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