CN217076790U

CN217076790U - Crane steel wire rope power follow-up tension device

Info

Publication number: CN217076790U
Application number: CN202220798338.6U
Authority: CN
Inventors: 赵小鹏; 刘志鹏; 曾兵; 李晶波; 张斌
Original assignee: Jiangsu Haitai Marine Equipment Co ltd
Current assignee: Jiangsu Haitai Marine Equipment Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-29
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to a hoist technical field just discloses a hoist wire rope power follow-up tensile force device, including the metal sheet, the slide opening has transversely been seted up on the metal sheet, two with two card spool of two fixedly connected with respectively on the upper and lower two sides of metal sheet be provided with two dodge gates on the card spool respectively, two the dodge gate all hinges through the hinge with two card spools, two equal sliding connection has the back cable in the dodge gate, the left side fixedly connected with mounting panel of metal sheet. The utility model discloses a set up overspeed device tensioner, can adjust the tensioning of overspeed device tensioner position when the hoist does not use and realize the back cable, prevent that the back cable from falling because of reasons such as self gravity when empty load, easy operation, the regulation of being convenient for has solved prior art and has adopted adjusting bolt to strain the back cable, and this kind of mode adjustment is difficult, and is very inconvenient in the in-service use, the unsatisfactory problem of effect moreover.

Description

Power follow-up tension device for steel wire rope of crane

Technical Field

The utility model relates to a hoist technical field specifically is a hoist wire rope power follow-up tensile force device.

Background

The arm support part of the tower type working condition of the crane consists of a main arm, an auxiliary arm, a main support, an auxiliary support and a rear pull rope, wherein the main arm is fixed, the amplitude of the auxiliary arm is changed by an auxiliary amplitude changing mechanism, and the lifting of a main hook heavy object is realized by the retraction and release of a main hook steel wire rope; the problem of falling of the rear stay rope always puzzles two performance indexes of the maximum lifting height and the minimum turning radius of a tower type working condition, when a heavy object is lifted, the rear stay rope is tensioned, and when the heavy object is lifted in a no-load state, the rear stay rope falls down due to self gravity and the like, and the arm support part is rocked when the heavy object is lifted, so that the auxiliary arm only can play a small angle, the lifting range of the crane is greatly reduced, and production accidents are easily caused; in the prior art, the adjusting bolt is adopted to tighten the rear inhaul cable, the adjustment is difficult in the mode, the operation is very inconvenient in actual use, and the effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hoist wire rope power follow-up tensile force device reaches the purpose of solving the problem that exists among the above-mentioned prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hoist wire rope power follow-up tensioning force device, includes the metal sheet, the slide opening has transversely been seted up on the metal sheet, the upper and lower two sides of metal sheet are with two card spool of fixedly connected with respectively, two be provided with two dodge gates on the card spool respectively, two the dodge gate all is articulated through the hinge with two card spool, two equal sliding connection has the back cable in the dodge gate, the left side fixedly connected with mounting panel of metal sheet, be provided with overspeed device tensioner and chucking device on the metal sheet, overspeed device tensioner sets up in the slide opening, chucking device sets up the back at the metal sheet.

Preferably, the tensioning device comprises a sliding block, a connecting shaft, a limiting block, a clamping block and a pulley, the sliding block is clamped in the sliding hole, the slide block is connected with the slide hole in a sliding way, the limiting block is fixedly connected with one end of the connecting shaft, one end of the connecting shaft far away from the limiting block is fixedly connected with the clamping block, the pulley is sleeved on the connecting shaft and positioned on the front surface of the metal plate, two sides of the pulley are respectively contacted with the limiting block and the sliding block, the rear pull rope is clamped in the sliding groove of the pulley, the position of the tensioning device can be adjusted to realize the tensioning of the rear guy cable when the crane is not used, the rear guy cable is prevented from dropping due to the self gravity and the like when no load, the operation is simple, the adjustment is convenient, the problem that the rear guy cable is tensioned by adopting an adjusting bolt in the prior art is solved, the method has the problems of difficult adjustment, inconvenient actual use and unsatisfactory effect.

Preferably, the clamping device comprises a metal frame, a first air cylinder, a rack, springs, a connecting block, a metal ball, a pressing rod, a stop rod and a second air cylinder, the metal frame is fixedly mounted on the back surface of the metal plate, the first air cylinder is fixedly mounted on the inner wall of one side of the metal frame, the output end of the first air cylinder is in contact connection with one side of the clamping block, the rack is in sliding connection with the inner wall of the metal frame, the rack is in contact connection with the clamping block, the number of the springs is two, one ends of the two springs are respectively and fixedly connected with two sides of the top surface of the rack, one ends of the two springs, which are far away from the rack, are fixedly connected on the top surface of the inner wall of the spring, one end of the connecting block is fixedly connected at the midpoint of the top surface of the rack, the connecting block penetrates through the top surface of the metal frame and is in contact connection with the metal frame, and one end, which is far away from the rack, is flush with the outer wall of the top surface of the metal frame, the metal ball is hinged to the top face of the connecting block, one end of the pressing rod is fixedly connected with the metal ball, one end of the stop rod is fixedly connected to the top face of the metal frame, one end, far away from the metal frame, of the stop rod is in contact connection with the bottom face of the pressing rod, the second air cylinder is fixedly installed on the back face of the metal plate, the output end of the second air cylinder is in contact connection with the top face of the pressing rod, the position of the tensioning device can be controlled, the position of the tensioning device is fixed, and the situation that the tensioning device resets and the rear pull rope falls down due to the gravity of the rear pull rope and other reasons is prevented.

Preferably, four screws are respectively arranged on four corners of the mounting plate and are in threaded connection with the mounting plate, so that the mounting plate is conveniently mounted on the auxiliary arm of the crane.

Preferably, the top surface of the clamping block and the bottom surface of the rack are both provided with teeth, and the clamping block is meshed with the teeth on the rack, so that the clamping block is conveniently clamped, and the position of the tensioning device is fixed.

Preferably, the stop lever is connected with the bottom surface midpoint contact of pressing the depression bar, the one end of stop lever and pressing the depression bar contact sets up for the hemisphere, makes the strong point in the lever model more smooth, and the prying effect is better, prizes the metal ball more easily when the extrusion is pressed the depression bar.

The utility model provides a hoist wire rope power follow-up tensile force device. The method has the following beneficial effects:

(1) the utility model discloses a set up overspeed device tensioner, can adjust the tensioning of overspeed device tensioner position when the hoist does not use and realize the tensioning of back cable, prevent that back cable when no-load from weighing down because of reasons such as self gravity, easy operation, the regulation of being convenient for has solved prior art and has adopted adjusting bolt to strain the back cable, and this kind of mode adjustment is difficult, and is very inconvenient in the in-service use, the unsatisfactory problem of effect moreover.

(2) The utility model discloses a set up chucking device, can control overspeed device tensioner's position, make overspeed device tensioner rigidity, prevent to lead to overspeed device tensioner to reset because of reasons such as back guy cable gravity, the back guy cable tenesmus.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a rear view of the present invention;

fig. 3 is an enlarged view of the tensioner of the present invention.

In the figure: 1. a metal plate; 2. a slide hole; 3. a wire clamping pipe; 4. a movable door; 5. a rear stay cable; 6. mounting a plate; 7. a screw; 8. a tensioning device; 801. a slider; 802. a connecting shaft; 803. a limiting block; 804. a clamping block; 805. a pulley; 9. a clamping device; 901. a metal frame; 902. a first cylinder; 903. a rack; 904. a spring; 905. connecting blocks; 906. a metal ball; 907. a pressing lever; 908. a stop lever; 909. and a second air cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: a power follow-up tensioning force device for a steel wire rope of a crane comprises a metal plate 1, wherein a sliding hole 2 is transversely formed in the metal plate 1, two wire clamping pipes 3 are fixedly connected to the same side of the upper surface and the lower surface of the metal plate 1 respectively, two movable doors 4 are arranged on the two wire clamping pipes 3 respectively, the two movable doors 4 are hinged to the two wire clamping pipes 3 through hinges, a rear tensioning cable 5 is connected to each of the two movable doors 4 in a sliding manner, a mounting plate 6 is fixedly connected to the left side of the metal plate 1, four screws 7 are arranged at four corners of the mounting plate 6 respectively, the four screws 7 are in threaded connection with the mounting plate 6, the mounting plate 6 is conveniently mounted on an auxiliary arm of the crane, a tensioning device 8 and a clamping device 9 are arranged on the metal plate 1, the tensioning device 8 is arranged in the sliding hole 2, the position of the tensioning device 8 can be adjusted when the crane is not used to tension the rear tensioning cable 5, the rear tensioning cable 5 is prevented from falling due to self gravity and the like when the crane is in no-load, the operation is simple, the adjustment is convenient, the problems that the adjustment is difficult, the rear inhaul cable 5 is very inconvenient in practical use and the effect is not ideal in the prior art due to the fact that an adjusting bolt is adopted to tension the rear inhaul cable 5 in the prior art are solved, the tensioning device 8 comprises a sliding block 801, a connecting shaft 802, a limiting block 803, a clamping block 804 and a pulley 805, the sliding block 801 is clamped in a sliding hole 2, the sliding block 801 is connected with the sliding hole 2 in a sliding mode, the limiting block 803 is fixedly connected with one end of the connecting shaft 802, one end, far away from the limiting block 803, of the connecting shaft 802 is fixedly connected with the clamping block 804, the pulley 805 is sleeved on the connecting shaft 802 and located on the front face of a metal plate 1, two sides of the pulley 805 are respectively contacted with the limiting block 803 and the sliding block 801, the rear inhaul cable 5 is clamped in a sliding groove of the pulley 805, a clamping device 9 is arranged on the back face of the metal plate 1, the position of the tensioning device 8 can be controlled, the position of the tensioning device 8 is fixed, the resetting of the tensioning device 8 caused by the gravity of the rear inhaul cable 5 is prevented, the rear cable 5 falls, the clamping device 9 comprises a metal frame 901, a first cylinder 902, a rack 903, springs 904, a connecting block 905, a metal ball 906, a pressing rod 907, a stop rod 908 and a second cylinder 909, the metal frame 901 is fixedly arranged on the back surface of the metal plate 1, the first cylinder 902 is fixedly arranged on the inner wall of one side of the metal frame 901, the output end of the first cylinder 902 is in contact connection with one side of a clamping block 804, the rack 903 is slidably connected on the inner wall of the metal frame 901, the rack 903 is in contact connection with the clamping block 804, the top surface of the clamping block 804 and the bottom surface of the rack 903 are both provided with teeth, the clamping block 804 is meshed with the teeth on the rack 903, so that the clamping block 804 is conveniently clamped, the position of the tensioning device 8 is fixed, the number of the springs 904 is two, one end of each spring 904 is fixedly connected with both sides of the top surface of the rack 903, one end of each spring 904, which is far away from the rack 903, is fixedly connected on the top surface of the inner wall of the spring 904, one end of the connecting block 905 is fixedly connected to the midpoint of the top surface of the rack 903, the connecting block 905 penetrates through the top surface of the metal frame 901, the connecting block 905 is in contact connection with the metal frame 901, one end of the connecting block 905, which is far away from the rack 903, is flush with the outer wall of the top surface of the metal frame 901, the metal ball 906 is hinged on the top surface of the connecting block 905, one end of the pressing rod 907 is fixedly connected with the metal ball 906, one end of the blocking rod 908 is fixedly connected on the top surface of the metal frame 901, one end of the blocking rod 908, which is far away from the metal frame 901, is in contact connection with the bottom surface of the pressing rod 907, the blocking rod 908 is in contact connection with the middle point of the bottom surface of the pressing rod 907, and one end of the blocking rod 908, which is in contact with the pressing rod 907, is in hemispherical arrangement, so that a supporting point in a lever model is smoother, and the prying effect is better, when the pressing rod 907 is pressed, the metal ball 906 is easier to pry up, the second air cylinder 909 is fixedly arranged on the back surface of the metal plate 1, and the output end of the second air cylinder 909 is in contact connection with the top surface of the pressing rod 907.

When in use, the utility model is arranged on the auxiliary arm of the crane, the rear guy cable 5 is sleeved on the pulley 805, the movable door 4 is opened, the rear guy cable 5 is placed in the wire clamping pipe 3, and the movable door 4 is closed; when the crane is not used, the second air cylinder 909 is started, the second air cylinder 909 presses the pressing rod 907, the connecting block 905 and the rack 903 are lifted by utilizing the lever principle, after the clamping state between the rack 903 and the clamping block 804 is released, the first air cylinder 902 is started to push the clamping block 804, the clamping block 804 moves to drive the pulley 805 to move through the connecting shaft 802, the rear cable 5 is stretched, the rear cable 5 is tensioned, the pressing rod 907 is released after the rear cable 5 is tensioned, the rack 903 is reset through the spring 904, and the clamping block 804 is clamped and fixed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist wire rope power follow-up tensile force device, includes metal sheet (1), its characterized in that: transverse opening (2) have been seted up on metal sheet (1), the upper and lower two sides of metal sheet (1) are with two spool of fixedly connected with (3), two respectively be provided with two dodge gates (4) on spool (3), two dodge gate (4) and two spool of card (3) are all articulated, two through the hinge equal sliding connection has back cable (5) in dodge gate (4), the left side fixedly connected with mounting panel (6) of metal sheet (1), be provided with overspeed device tensioner (8) and chucking device (9) on metal sheet (1), overspeed device tensioner (8) set up in slide opening (2), chucking device (9) set up the back at metal sheet (1).

2. A crane rope power follow-up tensioning device as claimed in claim 1, wherein: overspeed device tensioner (8) are including slider (801), connecting axle (802), stopper (803), fixture block (804), pulley (805), slider (801) joint is in slide opening (2), just slider (801) and slide opening (2) sliding connection, stopper (803) fixed connection is in the one end of connecting axle (802), the one end and fixture block (804) fixed connection that stopper (803) were kept away from in connecting axle (802), pulley (805) cover is established and is located the positive position of metal sheet (1) on connecting axle (802), the both sides of pulley (805) contact with stopper (803) and slider (801) respectively, back cable (5) joint is in the spout of pulley (805).

3. A crane rope power follow-up tensioning device as claimed in claim 2, wherein: the clamping device (9) comprises a metal frame (901), a first cylinder (902), a rack (903), springs (904), a connecting block (905), a metal ball (906), a pressing rod (907), a stop rod (908) and a second cylinder (909), wherein the metal frame (901) is fixedly arranged on the back surface of the metal plate (1), the first cylinder (902) is fixedly arranged on the inner wall of one side of the metal frame (901), the output end of the first cylinder (902) is in contact connection with one side of the clamping block (804), the rack (903) is in sliding connection with the inner wall of the metal frame (901), the rack (903) is in contact connection with the clamping block (804), the number of the springs (904) is two, one ends of the two springs (904) are respectively and fixedly connected with the two sides of the top surface of the rack (903), and one ends of the two springs (904) far away from the rack (903) are both fixedly connected on the top surface of the inner wall of the springs (904), one end of the connecting block (905) is fixedly connected to the midpoint of the top surface of the rack (903), the connecting block (905) penetrates through the top surface of the metal frame (901), the connecting block (905) is in contact connection with the metal frame (901), one end of the connecting block (905), which is far away from the rack (903), is flush with the outer wall of the top surface of the metal frame (901), the metal ball (906) is hinged on the top surface of the connecting block (905), one end of the pressing rod (907) is fixedly connected with the metal ball (906), one end of the stop lever (908) is fixedly connected to the top surface of the metal frame (901), one end of the stop lever (908) far away from the metal frame (901) is in contact connection with the bottom surface of the pressing lever (907), the second air cylinder (909) is fixedly arranged on the back surface of the metal plate (1), and the output end of the second air cylinder (909) is in contact connection with the top surface of the pressing rod (907).

4. A crane rope power follow-up tensioning device as claimed in claim 1, wherein: four screws (7) are respectively arranged on four corners of the mounting plate (6), and the screws (7) are all in threaded connection with the mounting plate (6).

5. A crane rope power follow-up tensioning device as claimed in claim 3, wherein: the top surface of the fixture block (804) and the bottom surface of the rack (903) are both provided with teeth, and the fixture block (804) is meshed with the teeth on the rack (903).

6. A crane rope power follow-up tensioning device as claimed in claim 3, wherein: the stop lever (908) is in contact connection with the middle point of the bottom surface of the pressing rod (907), and one end of the stop lever (908) in contact with the pressing rod (907) is arranged in a hemispherical shape.