Safety pin dismounting device for copper bar chain system of KT3 tobacco cutter

Abstract

The utility model discloses a KT3 tobacco cutter copper bar chain system safety pin dismounting device which comprises a drawing device, a supporting sleeve and a pull rod, the drawing device is arranged at the front end of the pull rod and provided with a U-shaped groove connected with a safety pin to be taken out, the supporting sleeve is installed on the outer wall of the drawing device in a sliding and sleeved mode, the front end of the supporting sleeve is fixedly connected with a fan-shaped installation frame, and the fan-shaped installation frame is fixedly connected with the pull rod. And the fan-shaped mounting frame is provided with a copper resin adsorption block, so that the dismounting device can be supported and stabilized above the safety pin to be taken out. The dismounting device is fixed through the copper resin adsorption block, the stability of the dismounting device in the working process is guaranteed, the safety pin is evenly stressed in the taking-out process due to the fact that the surfaces of the U-shaped steps are attached, the safety pin is prevented from being damaged, the pull rod is in threaded connection with the supporting sleeve, and the perpendicularity of the pull rod in the working process is guaranteed; a rotating rod and a hexagonal hole are arranged at the tail end of the pull rod and used for manually applying torsion or applying torsion by means of external equipment, and the tool is simple in structure and convenient to manufacture and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco machinery dismantling tool technical field, especially a kind of KT3 cutter copper chain system safety pin dismounting device. BACKGROUND

[0002] KT3 cutter chain system is as the important component of equipment, mainly responsible for the conveying of tobacco leaf.Only the system operates normally, can ensure the cutting width and the qualified rate of cutting. In the use process of chain system, it needs to be disassembled and maintained once every two weeks. When maintaining disassembly, copper chain safety pin is removed and driving device is removed. However, safety pin is fixed on copper chain main transmission wheel, and the two belong to transition fit, the screw rod is completely embedded in transmission wheel, only the head is exposed outside. There is no suitable tool to disassemble it at present, if using the existing equipment to disassemble, it is easy to cause damage to safety pin, so that it loses original function. And there is no safety protection in the disassembly process, tool and parts will be ejected due to external force, which is easy to cause safety accident, and there is certain safety hazard.

[0003] Through retrieval, the Chinese utility model patent with patent publication number CN 210879463 U discloses a kind of KT2 cutter copper chain fracture safety pin quick dismounting tool, the utility model includes pull rod, ram, connecting rod, bolt, grab head, the pull rod is connected with connecting rod, and the pull rod is connected with connecting rod, the grab head tail is vertical and plate-shaped, the grab head head is arc-shaped needle point, and U-shaped groove is arranged in the tail of grab head, and the grab head is compressed in the tail of connecting rod by installing bolt in U-shaped groove position;The utility model can quickly take out the safety pin that is cut off under the condition that chain load is too large and the safety pin is stopped, and then install new safety pin, to ensure the continuity of production, meanwhile, the parts of the device are easy to disassemble, and similar parts of different sizes and weights can be replaced according to the situation, to quickly restore equipment operation.

[0004] The above technical features have the following problems: this technical feature is only applicable to the case of taking out the residual safety pin after the safety pin is cut off due to excessive load of chain, and the remaining length of the safety pin cut off by overload is relatively short, so it is relatively easy to take out. In normal maintenance, the safety pin is required to be taken out completely and undamaged for secondary use. Since the safety pin is installed in transition fit with copper chain sprocket, the friction resistance between them is large, and the safety pin is completely embedded in the transmission wheel, only the head is exposed outside. The use method of the above tool is to press the grab head against the head of safety pin, and take out the safety pin by pulling or prying. In this process, improper force can cause damage to the head of safety pin, thereby causing waste of parts. Since the length of safety pin is relatively long, the use of the above tool increases the working intensity, leading to low maintenance efficiency, and it is difficult to ensure the continuity of production and the stability of product quality.

[0005] For example, Chinese utility model patent CN 211073420 U discloses a safety pin removal tool for a shredder, including a support bracket and a removal mechanism. The support bracket includes a positioning part and a connecting part, and the positioning part has a positioning surface. The removal mechanism includes a mating part, a connecting rod, and a pull-out part. The mating part has a pin groove that mates with the end of the safety pin to be removed. The connecting rod passes through a connecting hole, one end of the connecting rod is fixedly connected to the mating part, and the other end of the connecting rod is threadedly engaged with the pull-out part. The pull-out part is configured to rotate relative to the connecting rod so that the connecting rod moves away from the positioning surface. This utility model's safety pin removal tool for a shredder can first support the removal mechanism above the safety pin to be removed using the support bracket, then mate the pin groove with the end of the safety pin, and then rotate the pull-out part so that the connecting rod drives the mating part to pull the safety pin away from the positioning surface, thereby conveniently and effectively removing the cut safety pin.

[0006] The problem with the above-mentioned technical features is that the utility model supports the removal mechanism above the safety pin to be removed by a support bracket, but does not explain the specific support method or approach. During the removal of the safety pin, the removal mechanism is difficult to maintain a stable state. This will not have any impact on the safety pin that has been cut off and cannot be reused, but for the intact safety pin that needs to be reused, the instability of the utility model can easily cause unpredictable damage to the surface of the safety pin, reduce or lose its original function, and cause waste of component materials. Summary of the Invention

[0007] To address the numerous problems existing in the aforementioned background technology and achieve the aforementioned technical objectives, this utility model provides a safety pin removal device for the copper busbar chain system of a KT3 shredder, achieved through the following design structure and technical solution:

[0008] As a safety pin removal device for the copper busbar chain system of the KT3 shredder of this utility model, it includes:

[0009] A puller is provided and installed at the front end of the pull rod. The puller is cylindrical in shape and has a U-shaped groove at the front end for connecting the safety pin to be removed.

[0010] A support sleeve is fitted onto the outside of the puller and is slidably connected to the outer wall of the puller;

[0011] A pull rod, wherein the pull rod is a threaded rod, with the front end embedded in the puller and the middle part of the threaded rod connected to the support sleeve.

[0012] Furthermore, the puller is cylindrical in shape, with a U-shaped groove at the front end. The end face of the U-shaped groove has a U-shaped step, which is used to cooperate with the head of the safety pin. The inner groove at the tail end of the puller is used to embed the connecting rod.

[0013] Furthermore, the support sleeve includes: a support sleeve body, an anti-slip sleeve, and a copper resin adsorption block. The support sleeve body is cylindrical in shape and has through holes and threaded holes inside. A fan-shaped mounting bracket is fixedly connected to the front end. The anti-slip sleeve is sleeved and installed on the outer wall of the support sleeve body.

[0014] Furthermore, the through hole inside the support sleeve body is located at the front section, and the inner diameter of the through hole is slightly larger than the outer diameter of the puller. The puller can slide freely inside the through hole. The threaded hole inside the support sleeve body is located at the rear section and is a through hole, used for threaded connection of the pull rod.

[0015] Furthermore, the fan-shaped mounting bracket is provided with mounting seats, which are evenly distributed and have mounting grooves on their end faces for mounting copper resin adsorption blocks.

[0016] Furthermore, the pull rod includes a rotating rod and a hexagonal nut. One end of the threaded rod of the pull rod is provided with a cylindrical protrusion. The cylindrical protrusion is used to install in the inner groove and to connect and control the movement of the puller. The rotating rod is set in the middle through hole of the hexagonal nut and is used to manually apply torque to control the forward and backward movement of the pull rod.

[0017] Furthermore, the hexagonal nut is fixedly connected to the other end of the pull rod, and the end of the hexagonal nut is provided with a hexagonal hole for connecting an external rotating device.

[0018] The beneficial effects of this utility model compared with the prior art are:

[0019] 1. The disassembly device involved in this utility model is stably supported on the end face of the copper busbar chain sprocket by a copper resin adsorption block. It can support and stabilize the disassembly device according to the position of the safety pin to be removed, so that the U-shaped step of the puller can closely fit the head of the safety pin, ensuring that the safety pin is subjected to uniform force during the removal process, avoiding damage to the head of the safety pin, and reducing the waste of parts.

[0020] 2. The disassembly device involved in this utility model uses a threaded connection between the pull rod and the support sleeve to ensure the verticality of the pull rod during operation and prevent the safety pin from tilting and jamming during extraction. One end of the pull rod is equipped with a rotating rod for easy handling and torque application by maintenance personnel. A hexagonal hole is provided on the end face; when it is difficult to manually rotate the pull rod, a hexagonal drill bit from an external device can be inserted into the hexagonal hole to apply torque to the pull rod using an electric drill, thereby reducing the workload of maintenance personnel and improving maintenance efficiency.

[0021] 3. The safety pin removal device of the copper busbar chain system of the KT3 shredder of this utility model has a simple structure, is easy to manufacture and use, and can be easily operated by a single person, making it suitable for widespread application. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the safety pin removal device for the copper busbar chain system of the KT3 shredder.

[0024] Figure 2 This is a cross-sectional schematic diagram of the safety pin disassembly device of the copper busbar chain system of the KT3 shredder of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the puller (1) of the safety pin removal device of the copper busbar chain system of the KT3 wire cutter of this utility model;

[0026] Figure 4 This is a schematic diagram of the support sleeve (2) of the safety pin removal device of the copper busbar chain system of the KT3 wire cutter of this utility model;

[0027] Figure 5 This is an exploded view of the support sleeve (2) of the safety pin removal device of the copper busbar chain system of the KT3 wire cutter of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the pull rod (3) of the safety pin removal device of the copper busbar chain system of the KT3 shredder of this utility model. Figure 1 ;

[0029] Figure 7 This is a schematic diagram of the structure of the pull rod (3) of the safety pin removal device of the copper busbar chain system of the KT3 shredder of this utility model. Figure 2 ;

[0030] Figure 8 This is a schematic diagram showing the installation position of the safety pin in the copper busbar chain system of the KT3 shredder of this utility model;

[0031] Figure 9 This is a schematic diagram illustrating the usage status of the safety pin removal device for the copper busbar chain system of the KT3 shredder. Figure 1 ;

[0032] Figure 10 This is a schematic diagram illustrating the usage status of the safety pin removal device for the copper busbar chain system of the KT3 shredder. Figure 2 ;

[0033] Figure 11 This is a cross-sectional view illustrating the usage process of the safety pin removal device for the copper busbar chain system of the KT3 shredder. Figure 1 ;

[0034] Figure 12 This is a cross-sectional view illustrating the usage process of the safety pin removal device for the copper busbar chain system of the KT3 shredder. Figure 2 ;

[0035] Figure 13 This is a schematic diagram of the safety pin removal device for the copper busbar chain system of the KT3 shredder, used in conjunction with external equipment.

[0036] The numbers in the diagram are as follows:

[0037] 1-Puller; 11-U-shaped groove; 12-U-shaped step; 13-Inner groove;

[0038] 2-Support sleeve; 21-Support sleeve body; 22-Anti-slip sleeve; 23-Copper resin adsorption block; 24-Through hole; 25-Threaded hole; 26-Fan-shaped mounting bracket; 27-Mounting base; 28-Mounting groove;

[0039] 3-Pull rod; 31-Cylindrical protrusion; 32-Rotating rod; 33-Hexagonal nut; 34-Hexagonal hole;

[0040] 4-Safety pin;

[0041] 5- Copper busbar chain sprocket;

[0042] 6. External devices. Detailed Implementation

[0043] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] like Figures 1-2As shown, a safety pin removal device for a copper busbar chain system of a KT3 shredder includes: a puller 1, which is installed at the front end of the pull rod 3. The front end of the puller 1 is provided with a U-shaped groove 11, which is used to connect the safety pin 4 to be removed.

[0045] Support sleeve 2, which is sleeved and installed on the outside of puller 1 and slidably connected to the outer wall of puller 1;

[0046] Pull rod 3, the pull rod 3 is a threaded rod, with a puller 1 embedded in the front end and a support sleeve 2 connected in the middle of the threaded rod.

[0047] like Figure 3 As shown, the puller 1 is cylindrical in shape, with a U-shaped groove 11 at the front end that mates with the end of the safety pin 4 to be removed. The opening of the U-shaped groove 11 has a U-shaped step 12, which can be inserted into the gap between the safety pin 4 and the copper busbar chain sprocket 5, further securing the safety pin 4 through surface-to-surface contact. The tail end of the puller 1 has an inner groove to connect to the pull rod 3, which is used to eliminate the self-rotational motion of the puller 1 caused by the rotational motion of the pull rod 3.

[0048] like Figures 4-5 As shown, the support sleeve 2 includes a support sleeve body 21, an anti-slip sleeve 22, and a copper resin adsorption block 23. The front part of the support sleeve body 21 has a through hole 24 inside, the inner diameter of which is slightly larger than the outer diameter of the puller 1, and the puller 1 can move axially along the through hole 24. The rear part of the support sleeve body 21 has a threaded hole 25 inside, which is used to cooperate with the threaded rod of the pull rod 3. The anti-slip sleeve 22 is sleeved on the outer surface of the support sleeve body 2 to increase friction and avoid discomfort when gripping during operation. The front end of the support sleeve body 2 has a fan-shaped mounting bracket 26, which is an unclosed handwheel structure with three evenly distributed sets of mounting seats 27. The front end face of each set of mounting seats 27 has a mounting groove 28, and the mounting groove 28 is provided with a copper resin adsorption block 23 for adsorbing onto the surface of the copper busbar chain sprocket around the safety pin 4, further supporting and stabilizing the disassembly device.

[0049] like Figures 6-7 As shown, the pull rod 3 includes a cylindrical protrusion 31, a rotating rod 3, and a hexagonal nut 33. The cylindrical protrusion 31 is located at the front end of the pull rod 3 and is embedded in the inner groove 13 of the puller 1 for connecting the puller 1. The hexagonal nut 33 is located at the tail end of the pull rod 3. A through hole is provided on the side of the hexagonal nut 33 for placing the rotating rod 32. The rotating rod 32 is used for holding and applying torque, thereby driving the pull rod 3 to rotate and move outward. A hexagonal hole 34 is provided on the end face of the hexagonal nut 33. The hexagonal hole 34 is a conventional hexagonal hole. External equipment only needs to insert the hexagonal rod into the hole to apply torque to the pull rod 3, thereby pulling out the safety pin 4.

[0050] like Figures 8-12 As shown, the safety pin 4 has a step at its end. After installation, the end of the safety pin 4 and the step are exposed outside the sprocket. Therefore, there is a gap between the end of the safety pin 4 and the copper busbar chain sprocket 5 with a width equal to the step width. During normal maintenance, the operator first manually rotates the pull rod 3 of the disassembly tool to push the puller 1 forward so that the U-shaped groove 11 exposes the support sleeve body 21. Then, the operator brings the disassembly tool close to the safety pin 4 to be removed and inserts the U-shaped step 12 from top to bottom into the gap between the safety pin 4 and the copper busbar chain sprocket 5. Then, the operator rotates the pull rod 3 in the opposite direction, using the interaction of the threaded rod to stick the support sleeve 2 to the copper busbar chain sprocket 5.

[0051] like Figure 13 As shown, the operator can replace the drill bit with a hexagonal drill bit and insert it into the hexagonal hole 34 of the tie rod 3. Then, the drill can be used to apply torque to the tie rod 3, thereby quickly pulling out the safety pin 4 and improving the efficiency of maintenance.

[0052] Finally, it should be noted that the concept, specific structure, and technical effects of this utility model have been clearly and completely described above in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, the connection relationship mentioned herein does not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

Claims

1. A safety pin removal device for the copper busbar chain system of a KT3 shredder, characterized in that, include: Puller (1), the puller (1) is installed at the front end of the pull rod (3), the front end of the puller (1) is provided with a U-shaped groove (11), the U-shaped groove (11) is used to connect the safety pin (4) to be removed; Support sleeve (2), the support sleeve (2) is sleeved and installed on the outside of the puller (1), and is slidably connected to the outer wall of the puller (1); A pull rod (3) is a threaded rod with the front end embedded in the puller (1) and the middle part of the threaded rod connected to the support sleeve (2).

2. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 1, characterized in that, The puller (1) is cylindrical in shape. The U-shaped groove (11) is provided on the front end face of the puller (1). The opening of the U-shaped groove (11) is provided with a U-shaped step (12). The U-shaped step (12) is used to hold the end of the safety pin (4) to be removed. The tail end of the puller (1) is provided with an inner groove (13) for internally connecting the pull rod (3).

3. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 1, characterized in that, The support sleeve (2) includes: a support sleeve body (21), an anti-slip sleeve (22) and a copper resin adsorption block (23). The support sleeve body (21) is cylindrical in shape and has a through hole (24) and a threaded hole (25) inside. A fan-shaped mounting bracket (26) is fixedly connected to the front end. The anti-slip sleeve (22) is sleeved and installed on the outer wall of the support sleeve body (21).

4. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 3, characterized in that, The through hole (24) inside the support sleeve body (21) is located at the front end. The inner diameter of the through hole (24) is slightly larger than the outer diameter of the puller (1). The puller (1) can slide freely inside the through hole (24). The threaded hole (25) inside the support sleeve body (21) is located at the rear end and is a through hole, used for threaded connection of the pull rod (3).

5. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 3, characterized in that, The fan-shaped mounting bracket (26) is provided with mounting bases (27), the mounting bases (27) are evenly arranged, and the front end face of the mounting base (27) is provided with mounting grooves (28), the mounting grooves (28) are used to install copper resin adsorption blocks (23).

6. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 1, characterized in that, The pull rod (3) includes a rotating rod (32) and a hexagonal nut (33). The front end of the threaded rod of the pull rod (3) is provided with a cylindrical protrusion (31). The cylindrical protrusion (31) is used to be installed in the inner groove (13) and used to connect and control the movement of the puller (1). The rotating rod (32) is set in the middle through hole of the hexagonal nut (33) and is used to manually apply torque to control the back and forth movement of the pull rod (3).

7. The safety pin removal device for the copper busbar chain system of a KT3 shredder according to claim 6, characterized in that, The hexagonal nut (33) is fixedly connected to the tail end of the pull rod (3), and the end of the hexagonal nut (33) is provided with a hexagonal hole (34) for connecting an external rotating device (6).

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