Anti-locking and easily-detachable pantograph roller structure

Abstract

The utility model discloses an anti-locking easily-detachable pantograph roller mounting structure, which comprises a roller bracket and a roller, one end of the roller bracket is provided with a fixed roller clamping plate, the other end of the roller bracket is provided with a detachable roller clamping plate, and the top surface of the roller bracket supports the detachable roller clamping plate. Inserting holes are formed in the fixed roller clamping plate and the detachable roller clamping plate, the two ends of a center shaft of the roller are inserted into the inserting holes, and the two ends of the center shaft cannot rotate relative to the inserting holes. The anti-locking and easy-to-disassemble pantograph roller mounting structure has the advantages that the roller is prevented from being locked, the roller is easy to assemble and disassemble, and the structure is stable.

Description

Technical Field

[0001] This utility model relates to the field of pantograph technology, specifically to a pantograph drum structure that is easy to disassemble and prevents jamming. Background Technology

[0002] As a key component in power transmission, the stability and ease of maintenance of the pantograph's drum structure directly affect the operational safety and maintenance efficiency of the equipment. Traditional pantograph drum installation structures generally suffer from the following problems:

[0003] The roller is prone to jamming:

[0004] like Figure 1 and Figure 2 As shown, the contact area between the two ends of the roller and the roller support is too small. When the bolt is under force, it deforms, causing the rollers to jam without any gap, and the rollers cannot rotate.

[0005] Difficulty in installing and removing the rollers:

[0006] like Figure 1 As mentioned above, at least four bolts need to be removed to disassemble the roller, which is cumbersome, time-consuming, and labor-intensive, increasing maintenance costs and downtime. In addition, the fixing bolts are prone to deformation or corrosion due to long-term shearing forces, further complicating the disassembly process.

[0007] Insufficient structural stiffness:

[0008] like Figure 1 The roller support shown is not rigid enough, and it is easy to bend and deform under the force of the roller, which further makes it difficult to install and disassemble bolts and other components. Utility Model Content

[0009] The purpose of this invention is to provide a pantograph drum structure that is easy to disassemble and prevents jamming, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a pantograph drum structure that is easy to disassemble and prevents jamming, comprising a drum support and a drum. One end of the drum support is provided with a fixed drum plate, and the other end is provided with a detachable drum plate. The top surface of the drum support supports the detachable drum plate. Both the fixed drum plate and the detachable drum plate are provided with insertion holes. The two ends of the central shaft of the drum are inserted into the insertion holes, and the two ends of the central shaft are not rotatable relative to the insertion holes.

[0011] Preferably, the roller bracket has a slot at one end of the detachable roller plate, and the bottom of the detachable roller plate has a protrusion that is inserted into the slot. Both the protrusion and the slot have corresponding threaded holes and are fixed by screwing in roller fixing bolts.

[0012] Preferably, the roller bracket and the fixed roller clamp are integrally formed.

[0013] Preferably, both ends of the central shaft of the roller and the insertion hole are square-shaped, and the two are interference-fitted.

[0014] Preferably, the bottom of the roller bracket is provided with multiple connecting lugs for mounting the roller bracket and preventing the roller bracket from bending.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. Anti-jamming: The roller center shaft is matched with the insertion hole to avoid the problem of the roller jamming due to bolt deformation, thus ensuring the normal rotation of the roller.

[0017] 2. Easy to disassemble: The design features a fixed clamping plate on one end and a detachable clamping plate on the other end. Only one bolt needs to be removed to remove the roller, which reduces the number of bolts required by traditional methods by three, making the operation more convenient.

[0018] 3. Stable structure: The roller support and fixed plate are integrally formed, and a connecting lug is added at the bottom to enhance the overall rigidity, prevent the support from bending and deforming, and improve the stability of operation. Attached Figure Description

[0019] Figure 1 Schematic diagram of the improved front roller mounting structure;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This application provides a schematic diagram of the roller mounting structure;

[0022] Figure 4 This application provides a three-dimensional schematic diagram of the roller mounting structure.

[0023] In the diagram: 1. Roller bracket; 2. Fixed roller clamp; 3. Detachable roller clamp; 4. Roller; 5. Slot; 6. Roller fixing bolt; 7. Connecting lug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 4 As shown, the anti-jamming and easily detachable pantograph drum structure mainly consists of a drum bracket 1, a fixed drum clamping plate 2, a detachable drum clamping plate 3, and a drum 4.

[0026] The roller bracket 1 is the main support structure, and one end of it is manufactured in one piece with the fixed roller clamping plate 2 (e.g., Figure 3 As shown), ensure connection strength; the other end is provided with a slot 5 for installing the detachable roller plate 3.

[0027] The bottom of the detachable roller clamp 3 is provided with a protrusion that matches the slot 5. After the protrusion is inserted into the slot 5, it is tightened and fixed by the roller fixing bolt 6 passing through the threaded hole of the protrusion and the slot 5, thus achieving a detachable connection (e.g., Figure 4 (As shown).

[0028] The two ends of the central shaft of roller 4 are machined into square structures to fit into the square insertion holes on the fixed roller clamping plate 2 and the detachable roller clamping plate 3 (e.g., Figure 4 (As shown), ensure that the central shaft cannot be rotated after insertion.

[0029] The top surface of the roller bracket 1 provides a support surface for the detachable roller clamp 3. During installation, it is necessary to ensure that the bottom surface of the clamp is in close contact with the support surface to avoid [problems]. Figure 1 The diagram illustrates a situation where the bolt bears pressure, causing it to deform.

[0030] The bottom of the roller bracket 1 is provided with multiple connecting lugs 7 (such as... Figure 4 As shown, the lugs have mounting holes machined on them, and are fixedly connected to the external frame with bolts. This design not only enables the positioning and installation of the roller support, but also prevents the support from bending through the support of the lugs, thus improving the stability of the overall structure.

[0031] Disassembly steps:

[0032] Loosen the roller fixing bolt 6, remove the bolt, and lift the detachable roller clamp 3 upwards so that the bottom protrusion disengages from the slot 5 of the roller bracket 1;

[0033] Pull out the central shaft of one end of the roller 4 from the insertion hole of the fixed roller clamp 2, and the roller 4 can be removed as a whole (e.g. Figure 4 (As shown).

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure of a pantograph roller which is anti-stuck and easy to disassemble, comprising a roller support (1) and a roller (4), characterized in that: One end of the roller bracket (1) is provided with a fixed roller plate (2) and the other end is provided with a detachable roller plate (3). The top surface of the roller bracket (1) supports the detachable roller plate (3). Both the fixed roller plate (2) and the detachable roller plate (3) are provided with insertion holes. The two ends of the central shaft of the roller (4) are inserted into the insertion holes, and the two ends of the central shaft cannot rotate relative to the insertion holes.

2. The anti-stuck easily detachable pantograph roller structure according to claim 1, characterized in that: The roller bracket (1) is provided with a slot (5) at one end of the detachable roller plate (3). The bottom of the detachable roller plate (3) is provided with a protrusion. The protrusion is inserted into the slot (5). The protrusion and the slot (5) are provided with corresponding threaded holes and are fixed by screwing in roller fixing bolts (6).

3. The anti-stuck easily detachable pantograph roller structure according to claim 2, characterized in that: The roller bracket (1) and the fixed roller plate (2) are integrally formed.

4. The pantograph drum structure for preventing jamming and easy disassembly according to claim 3, characterized in that: Both ends of the central shaft of the roller (4) and the insertion hole are square in shape and fit together.

5. The pantograph drum structure for preventing jamming and easy disassembly according to claim 4, characterized in that: The bottom of the roller bracket (1) is provided with multiple connecting lugs (7) for installing the roller bracket (1) and preventing the roller bracket (1) from bending.

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