Quick dismounting device for soft start safety coupling

Abstract

The utility model relates to the technical field of couplings, and discloses a quick dismounting device for a soft start safety coupling, which comprises a flange plate, a connecting cylinder and a mounting cylinder which are sequentially connected and coaxially distributed, a first through hole is formed in the center of the flange plate, and a plurality of groups of uniformly distributed mounting holes are formed in the periphery of the flange plate; a second through hole connected with the first through hole is formed in the connecting cylinder; a jack containing cavity is formed in the mounting cylinder, an opening communicated with the jack containing cavity is formed in the outer side wall, and a third through hole and a fourth through hole allowing a piston rod of the hydraulic puller to penetrate through are formed in the two axial ends, close to and away from the connecting cylinder, of the mounting cylinder correspondingly and communicated with the jack containing cavity. The first through hole, the second through hole, the third through hole and the fourth through hole are coaxially distributed, in addition, a bearing contact surface matched with a claw of a hydraulic puller is further arranged on the mounting cylinder, the device can be disassembled by selectively using a hydraulic jack or the hydraulic puller, the operation is simple, convenient and safe, the efficiency is high, and the applicability is wide.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically to a quick disassembly device for a soft-start safety coupling. Background Technology

[0002] When installing and maintaining operating equipment such as motors, fans, water pumps, and speed reducers, couplings need to be disassembled and reassembled. Due to the inconsistent assembly tolerances of various types of equipment, this work often encounters situations where disassembly is difficult. The usual practice is to use gas cutting for heating or to cut the equipment directly to scrap it. Such construction methods consume a lot of time and are prone to wasting materials and spare parts, and can also cause irreversible damage to the equipment. Some brands of safety couplings do not allow heating for disassembly due to their design, which makes on-site construction difficult. The above description restricts the on-site construction progress.

[0003] The original design of the safety coupling was a set of bolt-connected cage-type pull-out tools with a maximum placement space of 30T jacks and low load-bearing capacity. Due to harsh on-site working conditions, large transmission loads, and large environmental temperature differences, there was corrosion between the shaft and the coupling. Thermal expansion and contraction caused the shaft hole to fit more tightly, resulting in increased disassembly torque between the shaft and the hole, making disassembly extremely difficult, with a low success rate of pull-out, poor results, and a waste of manpower and resources. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a quick disassembly device for soft-start safety couplings, which can effectively solve the problem of difficult disassembly of couplings in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a quick disassembly device for a soft-start safety coupling, characterized in that it includes:

[0007] A flange is used for detachable and fixed connection with the flange of the safety coupling to be disassembled. The flange has a first through hole distributed coaxially.

[0008] The connecting cylinder is coaxially distributed with the flange and fixedly connected to the flange at one end in the axial direction. It has a second through hole that is axially distributed inside.

[0009] The mounting cylinder is coaxially fixed to the axial end of the connecting cylinder away from the flange. The mounting cylinder has a jack receiving cavity inside and an opening communicating with the jack receiving cavity on its outer wall. The mounting cylinder has a third through hole near the connecting cylinder and a fourth through hole for the piston rod of the hydraulic puller to pass through, respectively. Both of them communicate with the jack receiving cavity. The first through hole, the second through hole, the third through hole and the fourth through hole are coaxially distributed. In addition, the mounting cylinder is also provided with a bearing contact surface that cooperates with the claw of the hydraulic puller.

[0010] Furthermore, it also includes a sealing plate for blocking the fourth through hole. The sealing plate is detachably connected to the inner wall of the end of the jack receiving cavity away from the connecting cylinder and serves as the force-bearing support surface of the hydraulic jack base.

[0011] Furthermore, a stop block is fixedly connected to the inner wall of the jack receiving cavity on the side away from the connecting cylinder, and the sealing plate is slidably connected between the stop block and the inner wall of the jack receiving cavity on the side away from the connecting cylinder.

[0012] Furthermore, the outer diameter of the mounting cylinder near the connecting cylinder is larger than the outer diameter of the connecting cylinder.

[0013] Furthermore, it also includes a push rod, which is coaxially slidably connected inside the first through hole, the second through hole, and the third through hole.

[0014] Furthermore, the diameters of the first through hole, the second through hole, and the third through hole are equal.

[0015] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0016] 1. This device can be disassembled using either a hydraulic jack or a hydraulic puller, depending on the site conditions. It is highly adaptable and can meet the disassembly requirements under different working conditions.

[0017] 2. When using a hydraulic jack for disassembly, a sealing plate can be installed to increase the contact area between the hydraulic jack base and the mounting cylinder, thereby increasing the strength of the end plate of the mounting cylinder and preventing its deformation.

[0018] 3. By setting different lengths of top rods to cooperate with the piston rods of hydraulic jacks or hydraulic pullers, it is applicable to the disassembly of safety couplings in different construction environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the present invention without the sealing plate installed.

[0023] Figure 4 This is a cross-sectional view of the present invention without the sealing plate installed;

[0024] Figure 5 This is a front view of the present invention without the sealing plate installed;

[0025] Figure 6 This is a left view of the present invention without the sealing plate installed;

[0026] Figure 7 for Figure 5 Sectional view of AA;

[0027] Figure 8 This is a schematic diagram of the structure of this utility model in conjunction with a hydraulic jack;

[0028] Figure 9 This is a schematic diagram of the structure of this utility model in conjunction with a hydraulic puller.

[0029] Among them, 1-flange, 2-connecting cylinder, 3-mounting cylinder, 4-jack receiving cavity, 5-opening, 6-first through hole, 7-second through hole, 8-third through hole, 9-fourth through hole, 10-stop block, 11-sealing plate, 12-mounting hole, 13-hydraulic jack, 14-hydraulic puller, 15-push rod, 16-safety coupling, 17-working shaft. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to embodiments. In order to more clearly illustrate the present solution, in the following embodiments, [the following is an example of...]. Figure 5 , Figure 8 , Figure 9 The description is based on the view direction in which it is located.

[0032] like Figures 1-9 As shown, this utility model provides a quick disassembly device for a soft-start safety coupling, including a flange 1, a connecting cylinder 2, and a mounting cylinder 3 that are connected in sequence and coaxially distributed. The three are integrally formed. The mounting cylinder 3 is provided with a jack receiving cavity 4 for accommodating a hydraulic jack 13. This device can quickly disassemble the safety coupling 16 from the working shaft 17 using a hydraulic jack 13 or a hydraulic puller 14.

[0033] Specifically, the flange 1 has a first through hole 6 at its center and multiple sets of mounting holes 12 evenly distributed around its perimeter. The positions of the mounting holes 12 correspond to the positions of the threaded holes on the connecting flange of the coupling 16, and the two are detachably and fixedly connected by bolts.

[0034] The connecting cylinder 2 is coaxially fixedly connected to the right end of the flange 1. The connecting cylinder 2 has a second through hole 7 inside, which is distributed along the axis of the connecting cylinder 2 and connected to the first through hole 6.

[0035] The mounting cylinder 3 is coaxially fixedly connected to the right end of the connecting cylinder 2, away from the flange 1. The mounting cylinder 3 contains a jack receiving cavity 4, and an opening 5 is provided on its outer wall, communicating with the jack receiving cavity 4. Furthermore, a third through hole 8 and a fourth through hole 9 are coaxially provided at both ends of the mounting cylinder 3. The third through hole 8 connects the second through hole 7 to the jack receiving cavity 4, and the fourth through hole 9 also connects to the jack receiving cavity 4. A stop block 10 is fixedly connected to the inner wall of the jack receiving cavity 4. Two sets of stop blocks 10 are symmetrically distributed along the axis of the mounting cylinder 3. The length of the stop blocks 10 is perpendicular to the axis of the mounting cylinder 3 and faces the opening 5. The stop blocks 10 are spaced apart from the inner wall of the right end of the mounting cylinder 3 to form a slide. A sealing plate 1 is slidably connected within the slide. 1. By installing a sealing plate 11 in the slide, the sealing plate 11 can be slidably connected in the slide to block the fourth through hole 9, and the sealing plate 11 can slide out from the opening 5 along the slide. The setting of the sealing plate 11 can increase the contact area between the base of the hydraulic jack 13 and the right end plate of the mounting cylinder 3, thereby increasing the strength of the mounting cylinder 3 and preventing the mounting cylinder 3 from deforming. The position of the stop block 10 in the left and right direction is located within the area where the opening 5 is located, so that the sealing plate 11 can slide out. In addition, the outer diameter of the mounting cylinder 3 is larger than the outer diameter of the connecting cylinder 2, and the two form a shoulder structure at the connection. The shoulder is used as the bearing contact surface of the claw of the hydraulic puller 14. When the hydraulic puller 14 is used, the claw of the hydraulic puller 14 cooperates with the shoulder so that the hydraulic puller 14 can drive the mounting cylinder 3 to move axially.

[0036] In this embodiment, the first through hole 6, the second through hole 7, the third through hole 8, and the fourth through hole 9 are coaxially distributed. The diameters of the first through hole 6, the second through hole 7, and the third through hole 8 are all equal, while the diameter of the fourth through hole 9 is matched with the piston rod of the hydraulic puller 14, allowing the piston rod of the hydraulic puller 14 to pass through.

[0037] When the piston rod length of the hydraulic jack 13 or hydraulic puller 14 meets the requirements, its piston rod and sliding connection are inside the first through hole 6, the second through hole 7 and the third through hole 8, and then make direct contact with the right end face of the working shaft 17.

[0038] When the piston rod length of the hydraulic jack 13 or hydraulic puller 14 does not meet the usage requirements, this device also includes a push rod 15. The push rod 15 is coaxially slidably connected inside the first through hole 6, the second through hole 7 and the third through hole 8. By setting the push rod 15, the piston rod stroke length of the hydraulic jack 13 or hydraulic puller 14 can be increased, which facilitates the contact between the hydraulic jack 13 or hydraulic puller 14 and the working shaft 17, thereby improving the applicability of the overall device.

[0039] like Figure 8As shown, when disassembling the safety coupling 16 using the hydraulic jack 13, firstly, the sealing plate 11 is inserted between the stop block 10 and the right side wall of the jack receiving cavity 4. Then, the hydraulic jack 13 is placed inside the jack receiving cavity 4, with the base of the hydraulic jack 13 in contact with the sealing plate 11. Next, the push rod 15 is inserted into the first through hole 6, the second through hole 7, and the third through hole 8. The position of the hydraulic jack 13 is adjusted so that one end of the piston rod of the hydraulic jack 13 is aligned with and in contact with the right end of the push rod 15. Finally, the mounting hole 12 of the flange 1 is aligned with the threaded hole on the safety coupling 16 and fixed with bolts. At this time, the left end of the push rod 15 corresponds to the right end of the working shaft 17 inside the safety coupling 16. By the action of the hydraulic jack 13, the left end of the push rod 15 can be driven to press against the right end of the working shaft 17, thereby disassembling and separating the safety coupling 16 from the working shaft 17.

[0040] like Figure 9 As shown, when the safety coupling 16 is disassembled using the hydraulic puller 14, the sealing plate 11 is not required. First, the push rod 15 is inserted into the first through hole 6, the second through hole 7, and the third through hole 8. The piston rod of the hydraulic puller 14 passes through the fourth through hole 9 and extends into the jack receiving cavity 4. The claw of the hydraulic puller 14 contacts the left end face of the mounting cylinder 3. The pin at one end of the piston rod is aligned with the right end of the push rod 15. The left end of the push rod 15 is aligned with the working shaft 17 inside the safety coupling 16. Then, the mounting hole 12 on the flange 1 corresponds to the threaded hole on the safety coupling 16 and is fixedly connected with bolts. The hydraulic cylinder of the hydraulic puller 14 can drive the left end of the push rod 15 to press against the right end face of the shaft. At this time, the claw drives the mounting cylinder 3 to move to the right, thereby driving the safety coupling 16 to move to the right, so as to achieve quick disassembly of the safety coupling 16 and the working shaft 17.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A soft start safety coupling quick disconnect device, characterized by, include: A flange is used for detachable and fixed connection with the flange of the safety coupling to be disassembled. The flange has a first through hole distributed coaxially. The connecting cylinder is coaxially distributed with the flange and fixedly connected to the flange at one end in the axial direction. It has a second through hole that is axially distributed inside. The mounting cylinder is coaxially fixed to the axial end of the connecting cylinder away from the flange. The mounting cylinder has a jack receiving cavity inside and an opening communicating with the jack receiving cavity on its outer wall. The mounting cylinder has a third through hole near the connecting cylinder and a fourth through hole for the piston rod of the hydraulic puller to pass through, respectively. Both of them communicate with the jack receiving cavity. The first through hole, the second through hole, the third through hole and the fourth through hole are coaxially distributed. In addition, the mounting cylinder is also provided with a bearing contact surface that cooperates with the claw of the hydraulic puller.

2. The soft start safety coupling quick disconnect device of claim 1, wherein, It also includes a sealing plate for blocking the fourth through hole. The sealing plate is detachably connected to the inner wall of the end of the jack receiving cavity away from the connecting cylinder and serves as the force-bearing support surface of the hydraulic jack base.

3. The soft start safety coupling quick disconnect device of claim 2, wherein, A stop block is fixedly connected to the inner wall of the jack receiving cavity on the side away from the connecting cylinder, and the sealing plate is slidably connected between the stop block and the inner wall of the jack receiving cavity on the side away from the connecting cylinder.

4. The soft start safety coupling quick disconnect device of claim 1, wherein, The outer diameter of the mounting cylinder near the connecting cylinder is larger than the outer diameter of the connecting cylinder.

5. The soft start safety coupling quick disconnect device of claim 1, wherein, It also includes a push rod, which is coaxially slidably connected inside the first through hole, the second through hole and the third through hole.

6. The soft start safety coupling quick disconnect device of claim 5, wherein, The first through hole, the second through hole, and the third through hole have the same diameter.

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