CN218156836U

CN218156836U - Lifting hook hanging load test device

Info

Publication number: CN218156836U
Application number: CN202222808577.8U
Authority: CN
Inventors: 龚文
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2022-12-27
Anticipated expiration: 2032-10-24

Abstract

The utility model belongs to the technical field of the lifting hook capability test technique and specifically relates to a lifting hook hanging load test device is related to. The lifting hook fixing device comprises two opposite mounting seats, wherein the tops of the mounting seats are connected through lifting hook fixing rods, two bases and lifting rods are arranged between the mounting seats, the two ends of each lifting rod are connected with the tops of the bases through hydraulic cylinders, and the lifting rods are located below the lifting hook fixing rods. The utility model discloses a set up the pneumatic cylinder and provide the pulling force for the lifting hook in the experiment, load that realization that can be simple and convenient is different has promoted experimental efficiency and factor of safety, and the preparation time that causes when avoiding hanging to get corresponding weight test is long, the weight is easily the emergence of the circumstances such as fall.

Description

Lifting hook hanging load test device

Technical Field

The utility model belongs to the technical field of the lifting hook capability test technique and specifically relates to a lifting hook hanging load test device is related to.

Background

The lifting hook, known by the english name lifting hook, is the most common type of spreader in lifting machinery. The hook is often suspended from a wire rope of the hoisting mechanism by means of a pulley block or the like. The lifting hook is the main load handling device of hoist, plays the effect of connecting the goods, and its performance directly influences the safety in utilization of equipment. The crane hook is subjected to a large force in use, and due to the friction of the steel wire rope, the crane hook can be broken if the crane hook is not checked correctly, so that safety accidents are caused.

The suspension test is an important method for verifying the performance of the lifting hook, the current suspension test of the lifting hook is generally carried out by combining weights with corresponding weights, the preparation time is long, the safety is poor, and the weights are easy to fall to cause safety accidents. In view of this, the utility model provides a safe effectual lift test device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lifting hook hanging load test device, this lifting hook hanging load test device can be simple and convenient the different loads of realization, promoted experimental efficiency and factor of safety.

The utility model provides a lifting hook hanging load test device, mount pad including two relative settings, the mount pad top is passed through the lifting hook dead lever and is connected, two be equipped with base and jib between the mount pad, the jib both ends are all through pneumatic cylinder joint base top, the jib is located lifting hook dead lever below.

Preferably, a threaded hole is formed in the middle of the lifting hook fixing rod, and the threaded hole is in threaded connection with the lifting hook.

Preferably, the hanger bar is axially identical to the hook fixing bar.

Preferably, the hydraulic cylinder is a single-rod hydraulic cylinder.

Preferably, the hydraulic cylinder comprises a cylinder body, a piston and a piston rod, the bottom of the cylinder body is fixedly connected with the base, and the top of the piston rod is connected with the suspender through a connecting device.

Preferably, the bottom of the connecting device is fixedly connected with the piston rod, the top of the connecting device corresponds to the hanging rod and is provided with a mounting groove, the hanging rod is positioned in the mounting groove, and the mounting groove is connected with the hanging rod through a pin shaft.

Preferably, all be equipped with the through-hole on the mounting groove lateral wall, the round pin axle passes the through-hole with the jib.

Preferably, the pin is perpendicular to the axial direction of the hanger rod.

Preferably the mount pad top is equipped with the spout along the horizontal direction, the spout with the axial vertical of lifting hook dead lever, lifting hook dead lever bottom corresponds the spout is equipped with the slider, the slider can be followed the spout slides.

Preferably, the base and the suspension rods are provided with two groups, and the two suspension rods are parallel to each other.

Has the advantages that:

the utility model discloses a set up the pneumatic cylinder and provide the pulling force for the lifting hook in the experiment, load that realization that can be simple and convenient is different avoids hanging the preparation time that causes when getting corresponding weight test long, and the weight is the emergence of the condition such as easily falling, has promoted experimental efficiency and factor of safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a position diagram of the double hook and the hanger bar when the double hook is tested according to the present invention;

FIG. 4 is a position diagram of the single hook and the suspension rod when the single hook is tested according to the present invention;

fig. 5 is a schematic diagram of the connection relationship between the hydraulic cylinder and the hydraulic system of the present invention.

Description of reference numerals:

1-mounting seat, 2-hook fixing rod, 3-sliding block, 4-base, 5-suspension rod, 6-pin shaft, 7-connecting device, 8-piston rod, 9-hydraulic cylinder, 10-through hole, 11-threaded hole, 12-sliding groove, 13-mounting groove, 14-double hook, 15-single hook, 16-rod cavity, 17-rodless cavity, 18-control valve, 19-proportional overflow valve, 20-hydraulic pump, 21-safety valve and 22-oil tank.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-5, a lifting hook hanging load test device comprises two oppositely arranged mounting seats 1, the tops of the mounting seats 1 are connected through a lifting hook fixing rod 2, a threaded hole 11 is formed in the middle of the lifting hook fixing rod 2, the threaded hole 11 is in threaded connection with a lifting hook, nuts are arranged at two ends of the threaded hole 11, and the nuts are sleeved on the lifting hook to reinforce the lifting hook. The top of the mounting seat 1 is provided with a sliding groove 12 along the horizontal direction, the sliding groove 12 is vertical to the axial direction of the lifting hook fixing rod 2, the bottom of the lifting hook fixing rod 2 is provided with a sliding block 3 corresponding to the sliding groove 12, and the sliding block 3 can slide along the sliding groove 12. The position of the hook is changed by adjusting the position of the hook fixing rod 2 on the mounting seat 1.

A base 4 and a suspender 5 are arranged between the two mounting seats 1, and the axial direction of the suspender 5 is the same as that of the hook fixing rod 2. The two ends of the suspender 5 are connected with the top of the base 4 through hydraulic cylinders 9, and the suspender 5 is positioned below the hook fixing rod 2. The base 4 and the mounting seat 1 are both installed on the ground. Base 4 and jib 5 all are equipped with two sets ofly, and two jibs 5 are parallel to each other, are convenient for carry out the hoist test to the lifting hook of double hook 14 types, set up four pneumatic cylinders 9 to two jibs 5. The hydraulic cylinder 9 is a single-rod hydraulic cylinder; including cylinder body, piston and piston rod 8, cylinder body bottom and 4 fixed connection of base, the piston is connected to 8 one ends of piston rod, and the other end extends to the cylinder body top, cuts apart into through the piston that is connected with piston rod 8 in the cylinder body and has pole chamber 16 and no pole chamber 17, and connecting device 7 connection jib 5 is passed through at 8 tops of piston rod.

The hydraulic cylinder 9 is connected with a hydraulic system to work, the hydraulic system comprises an oil tank 22, the oil tank 22 is connected with an outlet of a hydraulic pump 20, an outlet of the hydraulic pump 20 is respectively connected with an oil inlet of a safety valve 21 and an oil inlet of a control valve 18, and an oil outlet of the safety valve 21 and an oil outlet of the control valve 18 are both connected with the oil tank 22. Oil outlets of the control valves 18 are respectively connected with rod cavities 16 and rodless cavities 17 of the four hydraulic cylinders 9, the four rod cavities 16 are connected in parallel, and the four rodless cavities 17 are connected in parallel; the pipeline between the rod cavity 16 and the oil outlet of the control valve 18 is connected with the oil inlet of a proportional overflow valve 19, and the oil outlet of the proportional overflow valve 19 is connected with an oil tank 22. The hydraulic pump 20 is used for providing pressure oil, the control valve 18 is used for controlling the expansion and contraction of the hydraulic cylinder 9, the safety valve 21 is used for preventing overpressure of the system, and the proportional relief valve 19 is used for adjusting the pressure of the rod cavity 16 of the hydraulic cylinder 9 and further adjusting the tension at the piston rod 8. The height of the suspender 5 and the bearing capacity of the suspender 5 applied to the lifting hook can be adjusted through a hydraulic system, different loads can be simply and conveniently realized, and the efficiency and the safety factor of the test are improved.

Connecting device 7 bottom and 8 fixed connection of piston rod, connecting device 7 top correspond jib 5 and are equipped with mounting groove 13, all are equipped with the through-hole on the 13 lateral walls of mounting groove, and jib 5 is located inside mounting groove 13, and round pin axle 6 passes through-hole and jib 5, makes mounting groove 13 be connected through round pin axle 6 with jib 5. The pin 6 is perpendicular to the axial direction of the suspension rod 5, so as to limit the position of the suspension rod 5.

The working process comprises the following steps:

the lifting hook fixing rod 2 is moved to one side of the lifting rod 5 along the sliding groove 12, so that a worker can conveniently install the lifting hook to be tested. And the lifting hook to be detected is in threaded connection with the lifting hook fixing rod 2 through the threaded hole 11, and is reinforced by adopting a nut. Moving the hook fixing rod 2 to enable the hook to be detected to be positioned right above the suspender 5, and hanging the suspender 5 on the hook to be detected; only a single hanger rod 5 is adopted when the single hook 15 is detected; when the double hook 14 is detected, two hanger rods 5 are hung on the double hook 14, respectively. The two ends of the suspender 5 are positioned in the mounting grooves 13 and are connected with the mounting grooves 13 through the pin shafts 6.

Through the height of piston rod 8 and the pulling force of piston rod 8 to jib 5 among hydraulic system regulation pneumatic cylinder 9, adopt hydraulic system can realize the tensile infinitely variable control of lifting hook, different loads of realization that can be simple and convenient have promoted the experimental efficiency of lifting load and factor of safety, the lifting load of detection lifting hook that can be accurate convenient.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. The utility model provides a lifting hook hanging load test device, its characterized in that includes the mount pad of two relative settings, the mount pad top is passed through the lifting hook dead lever and is connected, two be equipped with base and jib between the mount pad, the jib both ends are all through pneumatic cylinder connection base top, the jib is located lifting hook dead lever below.

2. The device for testing the hanging load of the lifting hook as claimed in claim 1, wherein the middle of the fixing rod of the lifting hook is provided with a threaded hole, and the threaded hole is in threaded connection with the lifting hook.

3. The hook hanging load test apparatus of claim 1, wherein the hanger bar is axially identical to the hook securing bar.

4. A hook lift test apparatus according to claim 1, wherein the hydraulic cylinder is a single rod hydraulic cylinder.

5. A lifting hook hanging load test device as claimed in claim 4, wherein the hydraulic cylinder comprises a cylinder body, a piston and a piston rod, the bottom of the cylinder body is fixedly connected with the base, and the top of the piston rod is connected with the lifting rod through a connecting device.

6. A lifting hook hanging test device as claimed in claim 5, wherein the bottom of the connection device is fixedly connected to the piston rod, the top of the connection device is provided with a mounting groove corresponding to the suspension rod, the suspension rod is located inside the mounting groove, and the mounting groove is connected to the suspension rod through a pin shaft.

7. A lifting hook hanging load test device as claimed in claim 6, wherein the side walls of the mounting slots are provided with through holes, and the pin shaft passes through the through holes and the hanging rods.

8. A hook hanging load test apparatus as claimed in claim 7, wherein the pin is perpendicular to the axis of the boom.

9. The device for testing the hanging load of the lifting hook as claimed in claim 1, wherein the top of the mounting seat is horizontally provided with a sliding groove, the sliding groove is perpendicular to the axial direction of the fixing rod of the lifting hook, the bottom of the fixing rod of the lifting hook is provided with a sliding block corresponding to the sliding groove, and the sliding block can slide along the sliding groove.

10. A hook hanging load test apparatus as claimed in claim 1, wherein there are two sets of said base and said hanger bars, the two hanger bars being parallel to each other.