Hoisting induction device of winch

Abstract

The utility model relates to a hoist lifting induction device, which comprises a machine base, a bracket assembly, a cantilever assembly, a chain wheel chain and supporting plate assembly, a travel switch and a hoist, the machine base is arranged on a seam welder tail base, the hoist is arranged on the machine base, the lower end of the cantilever assembly is arranged on the machine base, and the bracket assembly is arranged on the bracket assembly. The upper end of the winch is connected with the bracket assembly, the bracket assembly is installed on the cantilever assembly, the chain wheel chain and the supporting plate assembly are installed on the two sides of the bracket assembly, the travel switch is installed at the bottom of the cantilever assembly, and one end of a steel wire rope of the winch is connected with the upper end of the cantilever assembly. The hoisting induction device of the winch is simple in structure, greatly reduces the batch manufacturing cost, is relatively easier to maintain, is easier to control due to the fact that an existing mechanism is only provided with two travel switches, greatly reduces the failure rate, improves the production efficiency, and meets the use requirements of an existing cage rib roll welding procedure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the concrete prestressed pipe pile production field especially, the cage muscle rolling welding process field, and specifically points to a hoist lifting induction device. BACKGROUND

[0002] The existing scissor fork lifting mechanism is relatively complex, the multi-sensor control point is relatively cumbersome, the proximity switch is easy to loosen, is easy to jam when the load is unbalanced, the gas source is unstable, the cost is higher, and the failure rate is higher. The existing commonly used scissor fork lifting mechanism is powered by a brake cylinder and senses the position by a proximity switch, as shown in the drawing. The mechanism is relatively complex, the multi-sensor control point is relatively cumbersome, the proximity switch is easy to loosen, is easy to jam when the load is unbalanced, the gas source is unstable, the cost is higher, and the failure rate is higher. Figure 1 The utility model discloses a hoist lifting induction device which overcomes the shortcomings of the prior art and satisfies the requirements of simple structure, low cost and convenient maintenance. UTILITY MODEL CONTENTS

[0003] The utility model discloses a hoist lifting induction device which overcomes the shortcomings of the prior art and satisfies the requirements of simple structure, low cost and convenient maintenance.

[0004] In order to achieve the above-mentioned purpose, the hoist lifting induction device of the utility model is as follows:

[0005] The hoist lifting induction device, which mainly comprises a base, a bracket assembly, a cantilever assembly, a chain wheel and chain and a support plate assembly, a travel switch and a hoist, the base is installed on the tail base of a roller welding machine, the hoist is installed on the base, the lower end of the cantilever assembly is installed on the base, and the upper end is connected with the bracket assembly, the bracket assembly is installed on the cantilever assembly, the chain wheel and chain and the support plate assembly are installed on both sides of the bracket assembly, the travel switch is installed at the bottom of the cantilever assembly, and one end of the steel wire rope of the hoist is connected with the upper end of the cantilever assembly.

[0006] Preferably, the chain wheel and chain and the support plate assembly comprise two parallel channel steel assemblies, two chain wheels and two chain wheel shafts are installed on the front and back of each channel steel assembly respectively, and the two chain wheels are connected by two parallel chain ropes respectively, the chain wheel is connected with the chain wheel shaft, the two chain wheel shafts are located on the left and right two parallel channel steel assemblies respectively, the chain wheel, the chain rope, the chain wheel shaft and the channel steel assembly are connected, the channel steel assembly and the cantilever assembly are connected through bolts, insulating sleeves and insulating pads, and a positioning plate is installed between the chain wheel shaft and the channel steel assembly.

[0007] Preferably, the end of the two sprocket shafts serves as a contact point, the two sprocket shafts are respectively wound with a wire and connected to an electric control cabinet to form a voltage and current loop, one of the two sprocket shafts serves as a positive pole and the other serves as a negative pole, when the helical rib contacts the chain on both sides of the chain and support plate assembly after the cantilever assembly is lifted, the chain and the sprocket shaft are in contact and conduct electricity, and the voltage and current loop is turned on.

[0008] Preferably, the device further comprises a polyurethane buffer installed at the bottom of the cantilever assembly and located on the inner side between the cantilever assembly and the base.

[0009] Preferably, the device comprises two travel switches installed at the bottom of the cantilever assembly and respectively serving as a control switch for the lifting of the cantilever assembly and a control switch for the lowering of the cantilever assembly.

[0010] The winch lifting sensing device has the advantages of simple structure, greatly reduced batch manufacturing cost, relatively easy maintenance, cancellation of the original five proximity switches, only two travel switches in the mechanism, easier control, single cantilever structure of the winch lifting sensing mechanism, no easy occurrence of partial load jamming like the scissor fork structure, greatly reduced failure rate, improved production efficiency, and meeting the requirements of existing cage rib roll welding processes. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of a prior art scissor fork lifting mechanism.

[0012] Figure 2 It is a structural schematic view of the winch lifting sensing device.

[0013] Figure 3 It is a front view of the winch lifting sensing device.

[0014] Figure 4 It is a top view of the winch lifting sensing device.

[0015] Figure 5 It is a side view of the winch lifting sensing device.

[0016] Figure 6 It is Figure 5 a sectional view in the C-C view angle.

[0017] REFERENCE SIGNS:

[0018] 1 base

[0019] 2 bracket assembly

[0020] 3 cantilever assembly

[0021] 4 sprocket chain and support plate assembly

[0022] 4.1 Sprocket

[0023] 4.2 Chain

[0024] 4.3 Spacer

[0025] 4.4 Sprocket Shaft

[0026] 4.5 nuts

[0027] 4.6 flat washer

[0028] 4.7 Positioning Plate

[0029] 4.8 Channel steel assembly

[0030] 5 Limit switches

[0031] 6. Polyurethane buffer

[0032] 7. Winches

[0033] 21. Scissors and forks

[0034] 22 Proximity Switch

[0035] 23 rollers

[0036] 24-cylinder with lock Detailed Implementation

[0037] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0038] The hoisting sensing device of this utility model includes a base 1, a bracket assembly 2, a cantilever assembly 3, a sprocket, chain and support plate assembly 4, a limit switch 5, and a hoist 7. The base 1 is mounted on the tail base of the welding machine, the hoist 7 is mounted on the base 1, the lower end of the cantilever assembly 3 is mounted on the base 1, and the upper end is connected to the bracket assembly 2. The bracket assembly 2 is mounted on the cantilever assembly 3, the sprocket, chain and support plate assembly 4 is mounted on both sides of the bracket assembly 2, the limit switch 5 is mounted at the bottom of the cantilever assembly 3, and one end of the hoist's wire rope is connected to the upper end of the cantilever assembly 3.

[0039] As the preferred embodiment of the utility model, the chain wheel chain and the support plate assembly 4 includes two parallel channel steel assemblies 4.8, each channel steel assembly 4.8 is provided with two chain wheels 4.2 and two chain wheel shafts respectively, and is connected by two parallel chain wheels 4.2 respectively, the chain wheel 4.1 is connected with the chain wheel shaft, the two chain wheels 4.2 are located at left and right sides respectively, the chain wheel, the chain wheel shaft and the channel steel assembly are connected, the channel steel assembly and the cantilever assembly are connected by bolts, insulation sleeves and insulation pads, the positioning plate is installed between the chain wheel shaft and the channel steel assembly, and the positioning plate is used to better fix the chain wheel shaft.

[0040] As the preferred embodiment of the utility model, the end of the two chain wheel shafts is used as a contact point, the two chain wheel shafts are wound with wires and connected in the electric control cabinet to form a voltage and current loop, one of the two chain wheel shafts is used as a positive electrode, and the other is used as a negative electrode, when the spiral rib contacts the chain wheels on both sides of the chain wheel chain and the support plate assembly after the cantilever assembly is lifted, the chain wheel shaft is contacted and conductive, and the voltage and current loop is conducted.

[0041] As the preferred embodiment of the utility model, the device further includes a polyurethane buffer 6 installed at the bottom of the cantilever assembly 3 and located on the inner side between the cantilever assembly 3 and the base 1.

[0042] As the preferred embodiment of the utility model, the device includes two travel switches 5 installed at the bottom of the cantilever assembly 3 and used as control switches for the lifting and lowering of the cantilever assembly 3 respectively.

[0043] In the specific embodiment of the utility model, the winch lifting induction mechanism is mainly composed of a base 1, a bracket assembly 2, a cantilever assembly 3, a chain wheel chain and a support plate assembly 4, a travel switch 5, a polyurethane buffer 6 and a winch 7, as shown in Figure 3 .

[0044] The base 1 is the base of the whole mechanism and is installed on the butt joint machine tail base, and is also the base for installing the winch 7;

[0045] The bracket assembly 2 is used to balance and support the load of the whole mechanism;

[0046] The cantilever assembly 3 is connected with the steel wire rope of the winch and is the fulcrum, and the parallelogram structure can ensure that the bracket assembly 2 always maintains a horizontal state during lifting;

[0047] The sprocket chain and support plate assembly 4 on both sides of the mechanism serves as a pair of switch contacts, and after being raised, contacts the spiral rib on the periphery of the cage rib. The left and right chain contacts are conductive by the conductive property of the spiral rib, and a signal is fed back to the PLC. After receiving the signal, the PLC feeds back a stop signal, and transmits the signal to the winch 7. The winch 7 is powered off and the brake is applied in time to achieve the purpose of stopping the mechanism. The structure of the two-wheel chain also reduces the friction of the movement and transportation of the cage rib.

[0048] The two travel switches 5 are control switches for the upper limit position and the lower original position of the mechanism.

[0049] The polyurethane buffer 6 is used to prevent the original travel switch 5 from failing and the mechanism from colliding with the base 1, and to play a buffering protection role.

[0050] The winch 7 is a 3kw-1.5ton-double rope specification with a speed of 7m / min, which provides power for the entire mechanism and has the function of power-off brake.

[0051] The working principle of the winch lifting induction mechanism is as follows:

[0052] The cross-sectional view of the sprocket chain and support plate assembly 4 is shown in Figure 4 The sprocket is connected to the bracket assembly 2 through the sprocket shaft, insulating sleeve and insulating pad. The sprocket chain and support plate assembly 4 and all the parts below the bracket assembly 2 are insulated. The two sprocket shaft ends are used as contacts, respectively winding the wires and connecting to the electrical control cabinet to form a voltage and current loop. When the spiral rib of the cage rib contacts the two sides of the chain, a signal is generated. Figure 2 、 As shown in Figure 3 When the cage rib is pulled by the tail trolley along the transmission direction of the sprocket chain and support plate assembly 4 during the roll welding of the roll welding cage rib, a signal is sent to the winch 7 when the cage rib passes a distance above the winch lifting induction mechanism. The winch 7 is powered on, and the cantilever assembly 3 is lifted by the steel wire rope. The chains on both sides of the sprocket chain and support plate assembly 4 contact the spiral rib on the periphery of the cage rib to form a loop and feed back a signal to the winch 7. After receiving the signal, the winch 7 is powered off and the brake is applied, and the winch lifting induction mechanism stops. The mechanism plays a supporting and transporting role for the cage rib to prevent the cage rib from deforming due to its own weight during the roll welding process, which affects the quality of the cage rib. After the roll welding of the cage rib is completed, a manual signal is given to the mechanism to lower the mechanism. When the mechanism senses the travel switch 5, the winch 7 is powered off and stopped.

[0053] The stop signal principle of the mechanism is as follows:

[0054] Two sprocket shafts are electrically connected with the electric cabinet respectively, one of the sprocket shafts is positive, and the other sprocket shaft is negative, when the spiral rib contacts the two side chains, the chain and the sprocket shaft contact to conduct electricity, so that the whole circuit is conducted, and the winch is powered to stop ascending.

[0055] The winch lifting induction mechanism is mainly applied to the cage rib roll welding process in the concrete prestressed pipe pile production process, and has the advantages of simple structure, low cost, convenient maintenance, few sensors, no jamming and convenient electrical control

[0056] The specific implementation scheme of the embodiment can be referred to the related description in the above embodiment, which will not be repeated here.

[0057] It can be understood that the same or similar parts in the above embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0058] It should be noted that, in the description of the utility model, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the utility model, unless otherwise specified, "a plurality of" means at least two.

[0059] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The winch lifting induction device of the utility model has simple structure, greatly reduced batch manufacturing cost, and is relatively easier to maintain. The original five proximity switches are all cancelled, and only two travel switches are used in the mechanism at present, which is easier to control. Since the winch lifting induction mechanism is a single cantilever structure, it is not easy to appear unbalanced load jamming like the scissor fork structure, so the failure rate is greatly reduced, the production efficiency is improved, and the requirements of the cage rib roll welding process are met.

[0061] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the specification and drawings should be considered as illustrative rather than limiting.

Claims

1. A hoist lifting sensing device, characterized by, The device comprises a base, a bracket assembly, a cantilever assembly, a chain wheel and chain and support plate assembly, a travel switch and a hoist, the base is installed on the tail base of a seam welder, the hoist is installed on the base, the lower end of the cantilever assembly is installed on the base, and the upper end is connected with the bracket assembly, the bracket assembly is installed on the cantilever assembly, the chain wheel and chain and support plate assembly is installed on both sides of the bracket assembly, the travel switch is installed at the bottom of the cantilever assembly, and one end of the steel wire rope of the hoist is connected with the upper end of the cantilever assembly.

2. The hoist lift sensing device of claim 1, wherein, The chain wheel and chain and support plate assembly comprises two parallel channel steel assemblies, two chain wheels and two chain wheel shafts are installed on the front and back of each channel steel assembly respectively, and two parallel chains are connected, the chain wheel is connected with the chain wheel shaft, the two chain wheel shafts are located on the left and right two parallel channel steel assemblies, the chain wheel, the chain and the chain wheel shaft are connected with the channel steel assembly, the channel steel assembly and the cantilever assembly are connected through bolts, insulation sleeves and insulation pads, and a positioning plate is installed between the chain wheel shaft and the channel steel assembly.

3. The hoist lift sensing device of claim 2, wherein, The end of the two chain wheel shafts serves as a contact point, the two chain wheel shafts are wound with wires and connected to the electric control cabinet to form a voltage and current loop, one of the two chain wheel shafts serves as a positive electrode, and the other serves as a negative electrode, when the spiral rib contacts the chains on both sides of the chain wheel and chain and support plate assembly after the cantilever assembly is lifted, the chains contact the chain wheel shafts to conduct electricity, and the voltage and current loop is turned on.

4. The hoist lift sensing device of claim 1, wherein, The device further comprises a polyurethane buffer installed at the bottom of the cantilever assembly and located on the inner side between the cantilever assembly and the base.

5. The hoist lift sensing device of claim 1, wherein, The device comprises two travel switches installed at the bottom of the cantilever assembly and serving as control switches for the lifting and lowering of the cantilever assembly respectively.

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