Anti-collision protection device for crane crane

Abstract

The utility model provides an anti-collision protection device for a crane trolley, which belongs to the technical field of crane trolley accessories, aims to solve the problems that the crane trolley in the prior art cannot realize buffering when being close to the tail end of a track, and is easy to cause rigid collision of equipment, and comprises a base plate and an energy absorption unit fixedly connected with the front part of the base plate, transmission frames are further fixedly connected to the two sides of the front portion of the base plate, side supports are arranged on the outer sides of the transmission frames, and buffering mechanisms are installed on the side supports. The buffering mechanism comprises a first shaft rod rotationally connected to the side support, a power wheel coaxially and fixedly connected with the outer end of the first shaft rod, a pull rope with one end fixedly connected with the first shaft rod, and a balancing weight fixedly connected with the other end of the pull rope.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoist trolley accessory technical field, more specifically, especially, it is a kind of hoist trolley anti-collision protection device. BACKGROUND

[0002] The trolley is the common name of crane, ship car, overhead crane and other hoists, and is basically the same as the hoist we call crane.The trolley driving mode basically has two types: one is centralized driving, that is, a motor drives the long transmission shaft to drive the two sides of the driving wheel;the second is separate driving, that is, the two sides of the driving wheel are driven by a motor each.The hoist trolley is to add a crane to the trolley to realize the lifting of heavy objects.

[0003] Such as the application number for CN202311471051.8 a factory warehouse hoist operation with trolley, including rail frame, crossbeam and walking part, the bottom surface of crossbeam is fixedly installed with cable winding mechanism, the bottom of cable winding mechanism is fixedly connected with bottom frame.The present application is limited to the free rotation of rotating assembly, so that the rotating assembly is combined with the main cable as a whole, and the pulling of the auxiliary pulling assembly on the upper two sides is matched, so that the rotating assembly after lifting the heavy object loses the free rotation effect, so as to ensure that the lifting part cannot rotate freely after being conveniently lifted, and the angle deviation is avoided after being matched with trolley transportation, for the lifting part to be assembled, the set hook angle is maintained after transportation, which is convenient for assembly, reduces the interference of manpower rotation, realizes the convenient hook, meets the requirement of stable transportation, reduces the influence of free rotation angle deviation, and has good use effect.

[0004] Based on the above patent search, and combined with the equipment in the prior art, the hoist trolley in the prior art cannot realize buffering when approaching the end of the track, which is easy to cause rigid collision of the equipment.

[0005] Therefore, in view of the above, the existing structure and defects are improved, and a hoist trolley anti-collision protection device is provided, so as to achieve the purpose of more practical value. INVENTION CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a kind of hoist trolley anti-collision protection device, to solve the hoist trolley of prior art when approaching the end of the track cannot realize buffering, easy to cause rigid collision of equipment Problem.

[0007] The purpose and effect of the hoist trolley anti-collision protection device of the utility model are achieved by the following specific technical means:

[0008] A hoist trolley anti-collision protection device comprises:

[0009] The base plate and the energy-absorbing unit fixedly connected in front of the base plate;

[0010] The transmission frame is provided with a side support outside, and the side support is provided with a buffer mechanism;

[0011] The buffer mechanism comprises a first shaft rod rotatably connected to the side support, a power wheel fixedly connected to the outer end of the first shaft rod in a coaxial manner, a pull rope having one end fixedly connected to the first shaft rod, and a counterweight fixedly connected to the other end of the pull rope.

[0012] Further, the energy absorption unit comprises a cylinder, a piston movably arranged in the cylinder, a piston rod having one end fixedly connected to the piston, and an impact plate fixedly connected to the other end of the cylinder away from the piston rod, the piston rod penetrates through the cylinder, the piston rod is slidably connected to the cylinder, and the piston is provided with a plurality of through holes.

[0013] Further, a spring is arranged in the cylinder, one end of the spring is in abutment with the inner wall of the cylinder, and the other end of the spring is in abutment with the piston.

[0014] Further, the impact plate is fixedly connected with a buffer pad.

[0015] Further, the buffer mechanism further comprises a second shaft rod and a limiting guide rail, the counterweight is slidably connected in the limiting guide rail, the second shaft rod is rotatably connected to the side support, and the pull rope is wound on the second shaft rod.

[0016] Further, the energy absorption unit is provided with an impact block at the front portion.

[0017] Compared with the prior art, the utility model has the advantages of the following:

[0018] The buffer mechanism 14 is arranged to buffer and slow down when the hoisting trolley moves to the end portion of the guide rail 17, and the energy absorption unit 13 is arranged to absorb most of the impact energy, so that rigid collision is avoided when the hoisting trolley moves to the end portion of the guide rail 17, and the impact resistance of the heavy trolley is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic view of a hoisting trolley anti-collision protection device.

[0020] Figure 2 is an explosion structure schematic view of a hoisting trolley anti-collision protection device.

[0021] Figure 3 is a sectional structure schematic view of an energy absorption unit of a hoisting trolley anti-collision protection device.

[0022] Figure 4The utility model relates to a lifting trolley anti-collision protection device is installed on the trolley, and is connected with the guide rail and the main beam's three-dimensional structure schematic diagram.

[0023] In the drawing, the correspondence between the component name and the drawing number is as follows:

[0024] The base plate 11, the side support 12, the energy absorption unit 13, the cylinder body 131, the piston 132, the through hole 1320, the piston rod 133, the spring 134, the impact plate 135, the buffer pad 136, the buffer mechanism 14, the first shaft 141, the power wheel 142, the second shaft 143, the pull rope 144, the counterweight 145, the limiting guide rail 146, the transmission frame 15, the friction tooth part 151, the impact block 16, the guide rail 17, the main beam 18 and the trolley 19. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0026] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0030] The utility model provides a kind of lifting trolley anti-collision protection device, comprising:

[0031] The energy absorption unit 13 is fixedly connected to the front part of base plate 11.

[0032] The front part of the substrate 11 is also fixedly connected with a transmission frame 15, and the outer side of the transmission frame 15 is provided with a side support 12, and the side support 12 is installed with a buffer mechanism 14.

[0033] The buffer mechanism 14 comprises a first shaft rod 141 rotatably connected to the side support 12, a power wheel 142 coaxially fixedly connected to the outer end of the first shaft rod 141, a pull rope 144 fixedly connected to one end of the first shaft rod 141, and a counterweight 145 fixedly connected to the other end of the pull rope 144.

[0034] The buffer mechanism 14 is used for buffering and decelerating when the hoisting trolley moves to the end of the guide rail 17, and the energy absorption unit 13 is used for absorbing most of the impact energy, so that the hoisting trolley does not collide rigidly when moving to the end of the guide rail 17, and the impact resistance of the heavy trolley is improved.

[0035] The transmission frame 15 is provided with a plurality of friction tooth parts 151, and the power wheel 142 is wrapped and fixed with a rubber layer, so that the transmission between the transmission frame 15 and the power wheel 142 is improved.

[0036] When the transmission frame 15 moves to the power wheel 142, the transmission frame 15 and the power wheel 142 are in contact and drive the power wheel 142 to rotate, and the power wheel 142 drives the counterweight 145 at the other end of the pull rope 144 to be lifted, so that the impact energy is converted into the gravitational potential energy of the counterweight 145, thereby ensuring that the hoisting trolley has a high safety factor while moving at a high speed.

[0037] The energy absorption unit 13 comprises a cylinder 131, a piston 132 movably arranged in the cylinder 131, a piston rod 133 fixedly connected to one end of the piston 132, and an impact plate 135 fixedly connected to the other end of the cylinder 131 away from the piston rod 133, the piston rod 133 penetrates the cylinder 131, the piston rod 133 is slidably connected with the cylinder 131, and the piston 132 is provided with a plurality of through holes 1320.

[0038] When the impact plate 135 is impacted, the cylinder 131 and the piston rod 133 move relatively, and the hydraulic oil flows through the through holes 1320 on the piston 132 under high pressure. Because the oil has viscosity, a large amount of heat will be released, the kinetic energy of the vehicle is converted into heat energy, and the heat energy is dissipated into the air through the shock absorber, so that the damping effect is achieved.

[0039] The cylinder 131 is provided with a spring 134, one end of the spring 134 abuts against the inner wall of the cylinder 131, and the other end of the spring 134 abuts against the piston 132. The elastic force of the spring 134 plays a buffering role.

[0040] The impact plate 135 is fixedly connected with a buffer pad 136.

[0041] The buffer mechanism 14 further comprises a second shaft 143 and a limiting guide rail 146, the counterweight 145 is slidingly connected in the limiting guide rail 146, the second shaft 143 is rotatably connected with the side support 12, and the pull rope 144 is wound on the second shaft 143.

[0042] The energy absorption unit 13 is provided with an impact block 16 at the front portion.

[0043] As shown in the actual application, Figure 4 The device is installed at the end of the trolley 19 which needs to be provided with a buffer structure, and buffers the movement of the trolley 19 to the end of the guide rail 17, wherein the main beam 18 is installed on the two trolleys 19, and the main beam 18 is provided with a lifting mechanism, a lifting hook and a corresponding driving device.

[0044] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present application and practical application, and to enable ordinary skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A crane collision protection device for a load handling vehicle, characterized in that The utility model relates to a kind of anti-collision protection device for lifting and rowing vehicle, including: Substrate (11) and substrate (11) front fixedly connected energy-absorbing unit (13); The front of the substrate (11) is also fixedly connected with a transmission frame (15), and the outer side of the transmission frame (15) is provided with a side support (12), and the side support (12) is installed with a buffer mechanism (14); The buffer mechanism (14) includes a first shaft rod (141) rotatably connected to the side support (12), a power wheel (142) coaxially fixedly connected to the outer end of the first shaft rod (141), a pull rope (144) fixedly connected at one end to the first shaft rod (141), and a counterweight (145) fixedly connected to the other end of the pull rope (144).

2. The anti-collision protection device for lifting and rowing vehicle according to claim 1, characterized in that: The energy-absorbing unit (13) includes a cylinder (131), a piston (132) movably arranged in the cylinder (131), a piston rod (133) fixedly connected at one end to the piston (132), and an impact plate (135) fixedly connected to the end of the cylinder (131) away from the piston rod (133), wherein the piston rod (133) penetrates through the cylinder (131), the piston rod (133) is slidably connected to the cylinder (131), and the piston (132) is provided with a plurality of through holes (1320).

3. A collision protection device for a lifting trolley as claimed in claim 2, characterised in that: A spring (134) is arranged in the cylinder (131), one end of the spring (134) abuts against the inner wall of the cylinder (131), and the other end of the spring (134) abuts against the piston (132).

4. A collision protection device for a lifting trolley as claimed in claim 2, characterized in that: The impact plate (135) is fixedly connected with a buffer pad (136).

5. The anti-collision protection device for a lifting trolley according to claim 1, characterized in that: The buffer mechanism (14) further includes a second shaft rod (143) and a limiting guide rail (146), the counterweight (145) is slidably connected in the limiting guide rail (146), the second shaft rod (143) is rotatably connected to the side support (12), and the pull rope (144) is wound on the second shaft rod (143).

6. A collision protection device for a lifting trolley as claimed in claim 1, characterized in that: The front of the energy-absorbing unit (13) is provided with an impact block (16).

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