Adjustable top pin device for tight spaces

Abstract

The utility model provides a kind of adjustable ejector pin device in narrow space belongs to mechanical equipment maintenance tool technical field, including linear telescopic mechanism, the telescopic end of linear telescopic mechanism is provided with first clamping piece, and the other end of linear telescopic mechanism is provided with pedestal, pedestal is connected with second clamping piece by adjustable connecting mechanism, second clamping piece is oppositely arranged with first clamping piece;Wherein, second clamping piece is attached with the thin end of bolt that needs to be disassembled, first clamping piece is attached with the flange that needs to be disassembled bolt away.The utility model can be rusted in narrow space with the bolt of column pin and eject, so as to be rusted with the bolt of column pin and disassemble under the premise of not damaging wheel and diaphragm.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical equipment maintenance tools, and in particular relates to an adjustable top pin device for confined spaces. Background Technology

[0002] During the maintenance of double diaphragm couplings, the disassembly of locating pins is frequently involved. Due to the complex on-site environment, rust and dust accumulation on the locating pins, as well as design flaws in the position and disassembly method of the locating pins, the locating pins are difficult to disassemble. In addition, during the disassembly of the coupling, factors such as the coupling being tightened and rusted make it difficult to remove the bolts with pins. Usually, maintenance personnel need to use a sledgehammer to knock them out. In cases where the working space is narrow, it is necessary to use gas welding and cutting for destructive disassembly. This often leads to damage to the coupling wheel and diaphragm, causing unnecessary losses and even affecting normal production. Utility Model Content

[0003] This invention addresses the problem of difficulty in disassembling rusted bolts with pins in confined spaces. It provides an adjustable jacking device for narrow spaces, capable of pushing out rusted bolts with pins in confined spaces, thus allowing for removal of the rusted bolts without damaging the wheel or diaphragm.

[0004] The technical solution adopted by this utility model for an adjustable top pin device in a confined space is as follows:

[0005] An adjustable top pin device for confined spaces includes a linear telescopic mechanism. The telescopic end of the linear telescopic mechanism is provided with a first clamping member, and the other end of the linear telescopic mechanism is provided with a base. The base is connected to a second clamping member through an adjustable connecting mechanism. The second clamping member is arranged opposite to the first clamping member. The second clamping member is in contact with the thin end of the bolt to be disassembled, and the first clamping member is in contact with the flange away from the bolt to be disassembled.

[0006] A further improvement of the present invention is that the adjustable connection mechanism includes a frame with opposite side walls that is connected to the base and can be adjusted up and down in the height direction, and the second clamping member is hinged to the frame and can rotate relative to the base in the height direction.

[0007] A further improvement of this utility model is that: the side of the base connected to the second clamping member is provided with a first connecting hole at the position of the opposite side wall of the frame, and the opposite side wall of the frame is provided with a plurality of second connecting holes adapted to the first connecting holes along its height direction.

[0008] A further improvement of this utility model is that the second clamping member is hinged to the opposite side walls of the frame via a pin, and a locking nut is fitted on the pin.

[0009] A further improvement of the present invention is that: an auxiliary support mechanism is provided above the second clamping member on the frame, and the auxiliary support mechanism includes a support block located above the second clamping member and in contact with the second clamping member.

[0010] A further improvement of this utility model is that: on the side of the two adjacent side walls of the frame, a sliding groove is provided along its height direction, and each sliding groove is fitted with a slider that is fixedly connected to the support block, and each slider is locked to the frame by a locking bolt.

[0011] A further improvement of this utility model is that: a strip-shaped hole connected to the slide groove is provided on the side wall of the frame at the position corresponding to the slide groove, and the locking bolt passes through the strip-shaped hole and is threadedly connected to the corresponding slider.

[0012] A further improvement of the present invention is that friction portions are provided on the sides of the first clamping member and the second clamping member that are far apart from each other.

[0013] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0014] When the first clamping member is in contact with the flange away from the bolt to be removed, the present invention can drive the second clamping member to move away from the first clamping member through the set linear telescopic mechanism. The moving second clamping member can push the bolt in contact, thereby pushing the bolt out, so as to remove the rusty bolt with the pin without damaging the wheel and diaphragm.

[0015] This invention adjusts the position of the frame to achieve the purpose of adjusting the position of the second clamping member in a narrow space, so that the second clamping member is in contact with the bolt to be disassembled; by adjusting the angle of the second clamping member, the second clamping member can be completely in contact with the thin end of the bolt, preventing the invention from slipping during use.

[0016] This invention, through the provision of an auxiliary support mechanism, can provide auxiliary support for the second clamping member above it, preventing the bolt from being unable to be pushed out during the rotation of the second clamping member during use.

[0017] This invention, through the addition of friction parts, can further enhance the friction between the first clamping member and the flange, and between the second clamping member and the bolt, thereby preventing slippage during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an adjustable top pin device for confined spaces provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an adjustable top pin device for confined spaces, where the adjustable connecting mechanism is separated from the base.

[0020] Figure 3 This is a schematic diagram of the structure of an adjustable top pin device for use in a confined space, provided by this utility model.

[0021] In the attached diagram: 1. Linear telescopic mechanism; 2. First clamping element;

[0022] 3. Base; 31. First connecting hole;

[0023] 4. Adjustable connection mechanism; 41. Frame; 42. Second connection hole;

[0024] 5. Second clamping component; 51. Locking nut; 52. Pin;

[0025] 6. Auxiliary support mechanism; 61. Support block; 62. Slide groove; 63. Slider; 64. Locking bolt; 65. Strip hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.

[0027] First refer to Figure 1 and Figure 2 As can be seen, this utility model includes a linear telescopic mechanism 1, which can employ commonly used devices such as hydraulic cylinders, pneumatic cylinders, and electric push rods. In this embodiment, a commonly used hydraulic cylinder is selected as the telescopic mechanism. The telescopic end of the linear telescopic mechanism 1 in this utility model is connected to a first clamping member 2. The first clamping member 2 can be a plate commonly used in the prior art, and can be connected to the telescopic end of the linear telescopic mechanism 1 by bolts or welding. Specifically, one end of the first clamping member 2 is fixedly connected to the telescopic end of the linear telescopic mechanism 1, so that the first clamping member 2 and the linear telescopic mechanism 1 remain perpendicular.

[0028] like Figure 1 and Figure 2 As shown, the other end of the existing telescopic mechanism is fixedly connected to a base 3. The base 3 is connected to a second clamping member 5 via an adjustable connecting mechanism 4. The second clamping member 5 is disposed opposite to the first clamping member 2. The aforementioned second clamping member 5 can also be a plate commonly used in the prior art.

[0029] In use, this invention first aligns the end of the first clamping member 2 away from the linear telescopic mechanism 1 with the flange away from the bolt to be removed. Then, by adjusting the adjustable connecting mechanism 4, the second clamping member 5 is brought into contact with the narrow end of the bolt to be removed. Next, the linear telescopic mechanism 1 is extended. As it extends, the second clamping member 5 moves away from the first clamping member 2. The moving second clamping member 5 pushes the bolt to be removed, thus ejecting it from the flange. This allows the rusted bolt with a pin to be removed without damaging the wheel or diaphragm.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the adjustable connection mechanism 4 includes a frame 41 connected to the side of the base 3 facing the coupling. The frame 41 has opposing side walls (such as U-shaped, C-shaped, portal-shaped, and parallel double-plate plates with opposing side walls), and the frame 41 can be adjusted up and down in the height direction. Specifically, a first connecting hole 31 is provided on the side of the base 3 facing the coupling, corresponding to the position of the opposing side walls of the frame 41. The inner wall of the first connecting hole 31 has an internal thread. At the same time, multiple second connecting holes 42 adapted to the first connecting holes 31 are provided on the opposing side walls of the frame 41 along its height direction. The second connecting holes 42 are through holes penetrating the frame 41.

[0031] When the frame 41 is connected to the base 3, the second connecting hole 42 of the frame 41 is aligned with the first connecting hole 31 of the base 3, and then the fixing bolts are screwed into the second connecting hole 42 and the first connecting hole 31, thereby connecting the frame 41 and the base 3 together. By using the second connecting hole 42 at different positions, the position of the frame 41 can be adjusted in the height direction.

[0032] like Figure 1 and Figure 2 As shown, in this utility model, the second clamping member 5 is hinged to the opposite side walls of the frame 41. Specifically, a pin 52 is hinged to the top of the opposite side walls of the frame 41. The pin 52 passes through one end of the second clamping member 5 and is fixedly connected to the second clamping member 5. At the same time, both ends of the pin 52 extend outward to the outer side of the corresponding side wall of the frame 41, and both ends of the pin 52 are provided with external threads. By rotating the pin 52, the angle of the second clamping member 5 can be adjusted so that the end of the second clamping member 5 away from the frame 41 is fully engaged with the thin end of the bolt to be removed. Then, locking nuts 51 are screwed onto both ends of the pin 52 to fix the pin 52 and prevent the pin 52 from continuing to rotate, which would cause the second clamping member 5 to fail to fully engage with the thin end of the bolt to be removed.

[0033] To prevent the second clamping member 5 from rotating upwards and failing to push out the bolt during use of this utility model, an auxiliary support mechanism 6 is provided on the frame 41 above the second clamping member 5 in this embodiment. For example... Figure 1 and Figure 2 As shown, in this embodiment, the auxiliary support mechanism 6 includes a support block 61 located above the second clamping member 5 and in contact with the top of the second clamping member 5. A vertical groove 62 is provided on the side of the opposite side wall of the frame 41 that is close to each other, corresponding to the position of the support block 61. Each groove 62 is fitted with a slider 63 that is fixedly connected to the support block 61. At the same time, a strip hole is provided on the side wall of the frame 41 corresponding to the position of the groove 62, which is connected to the groove 62. A locking bolt 64 that is threadedly connected to the slider 63 passes through the strip hole.

[0034] In order to prevent slippage between the first clamping member 2 and the flange, and between the second clamping member 5 and the bolt during use, friction parts (such as anti-slip textures, knurling, rubber pads, serrations, etc. that can increase friction) are provided on the side of the first clamping member 2 and the second clamping member 5 that are far apart.

[0035] In order to ensure the overall strength, the first clamping member 2, the second clamping member 5, the base 3 and the adjustable connecting mechanism 4 should all be made of alloy steel with a yield strength ≥345MPa.

[0036] The working principle of the adjustable top pin device in this embodiment for confined spaces is as follows:

[0037] like Figure 3 As shown, in this embodiment, the first end of the first clamping member 2 away from the linear telescopic mechanism 1 is first brought into contact with the flange away from the bolt to be removed. Then, by adjusting the angle of the adjustable connecting mechanism 4 and the second clamping member 5, the second clamping member 5 is brought into contact with the thin end of the bolt to be removed. The position of the support block 61 is adjusted so that the support block 61 contacts the top of the second clamping member 5. Then, the linear telescopic mechanism 1 is extended. As the linear telescopic mechanism 1 extends, it will drive the second clamping member 5 to move away from the first clamping member 2. The moving second clamping member 5 will push the bolt to be removed, thereby pushing the bolt out of the flange. Thus, the rusty bolt with a pin can be removed without damaging the wheel and diaphragm.

[0038] In the above embodiments, this utility model provides an adjustable top pin device for confined spaces. When the first clamping member is in contact with the flange away from the bolt to be removed, the linear telescopic mechanism can drive the second clamping member to move away from the first clamping member. The moving second clamping member can push the bolt in contact, thereby pushing the bolt out, achieving the purpose of removing the rusted bolt with the pin without damaging the wheel and diaphragm. This utility model adjusts the position of the frame to achieve the purpose of adjusting the position of the second clamping member in a confined space, so that the second... The clamping member engages with the bolt to be disassembled; by adjusting the angle of the second clamping member, it can be made to fully engage with the thin end of the bolt, preventing slippage during use; the auxiliary support mechanism provides additional support above the second clamping member, preventing the bolt from being unable to be dislodged during use due to rotation of the second clamping member; the friction part further enhances the friction between the first clamping member and the flange, and between the second clamping member and the bolt, preventing slippage during use.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A compact adjustable ejector pin device, characterized by: The utility model provides a linear telescopic mechanism (1) is provided with first clamping piece (2) at telescopic end, and the other end of linear telescopic mechanism (1) is provided with base (3), and base (3) is connected with second clamping piece (5) through adjustable connecting mechanism (4), and second clamping piece (5) is opposite to first clamping piece (2) setting;Wherein, second clamping piece (5) is in line with the thin end of bolt that needs to be disassembled, and first clamping piece (2) is in line with the flange that is away from the bolt that needs to be disassembled.

2. A top pin device for adjustable narrow spaces according to claim 1, characterized in that: The adjustable connecting mechanism (4) includes a frame (41) with opposite side walls connected to the base (3) and adjustable in height, and the second clamping piece (5) is hinged to the frame (41) and rotatable relative to the base (3) in the height direction.

3. A clearance adjustable dowel pin device according to claim 2, wherein: The side of the base (3) connected to the second clamping piece (5) corresponds to the positions of the opposite side walls of the frame (41) and is provided with first connecting holes (31), and the opposite side walls of the frame (41) are provided with a plurality of second connecting holes (42) adapted to the first connecting holes (31) along the height direction.

4. A top pin device for adjustable furniture according to claim 2, wherein: The second clamping piece (5) is hinged to the opposite side walls of the frame (41) through a pin shaft (52), and the pin shaft (52) is fitted with a locking nut (51).

5. A top pin device for adjustable narrow spaces according to claim 2, characterized in that: The frame (41) is provided with an auxiliary support mechanism (6) above the second clamping piece (5), and the auxiliary support mechanism (6) includes a support block (61) above the second clamping piece (5) and in contact with the second clamping piece (5).

6. A top pin device for adjustable furniture according to claim 5, wherein: The opposite side walls of the frame (41) are provided with sliding grooves (62) on the side close to each other along the height direction, and each sliding groove (62) is fitted with a sliding block (63) fixedly connected to the support block (61), and each sliding block (63) is locked on the frame (41) by a locking bolt (64).

7. A clearance adjustable dowel pin device according to claim 6, wherein: The side wall of the frame (41) is provided with a strip-shaped hole connected to the sliding groove (62) at the position corresponding to the sliding groove (62), and the locking bolt (64) penetrates the strip-shaped hole and is threadedly connected to the corresponding sliding block (63).

8. A top pin assembly for use in a narrow space according to any one of claims 1 to 7, wherein: The side away from the second clamping piece (5) of the first clamping piece (2) is provided with a friction part.

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