Connecting structure of belt conveyor driving roller and speed reducer

Abstract

The utility model provides a connecting structure of a belt conveyor driving roller and a speed reducer. The connecting structure comprises the speed reducer, the driving roller, a first taper sleeve, a second taper sleeve and a fixed pressing plate. Compared with the prior art, the first conical shaft is sleeved with the first conical sleeve in an attached mode and tightly attached to the hole wall of the transmission connecting shaft cylinder, the second conical shaft is sleeved with the second conical sleeve in an attached mode and tightly attached to the hole wall of the transmission connecting shaft cylinder, and the second conical sleeve is provided with the turned-over edge tightly attached to the side wall of the speed reducer. The fixed pressing plate is fixedly connected with the first conical shaft and the first conical sleeve through screws, so that the connecting shaft can be firmly locked in a transmission connecting shaft cylinder arranged on the speed reducer through extrusion fit of conical surfaces, and in the dismounting process, only the first conical sleeve and the second conical sleeve need to be retreated from the transmission connecting shaft cylinder, and the connecting shaft can be dismounted. The transmission shaft can be detached and taken out from the speed reducer, the detaching time is shortened, and the detaching difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, and particularly relates to a connection structure between a driving drum and a speed reducer of a belt conveyor. Background Art

[0002] A belt conveyor, abbreviated as a belt conveyor, has fixed and mobile types, with a simple structure and high efficiency. It is a continuous conveying machine that uses a flexible conveyor belt as a material-carrying and traction member. An endless conveyor belt surrounds the driving drum and the redirecting drum. The upper and lower branches between the two drums are each supported by a number of idlers. The material is placed on the upper branch, and the conveyor belt and the material are dragged by the friction between the driving drum and the belt.

[0003] In the prior art, the power device of a belt conveyor is the most important part of the belt conveyor. It consists of a motor, a speed reducer, and a driving drum. The transmission shaft on the driving drum is in interference fit and coaxial with the coupling hole of the speed reducer through a key block. The motor is drivingly connected to the pulley on the speed reducer through a belt to output power to the driving roller. However, since the transmission shaft on the driving drum and the speed reducer are in interference fit for high-torque transmission, it is very difficult to pull out the transmission shaft from the speed reducer during disassembly and maintenance of the driving drum, and the disassembly is time-consuming and laborious. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connection structure between a driving drum and a speed reducer of a belt conveyor, aiming to solve the problem that it is very difficult to pull out the transmission shaft from the speed reducer during disassembly and maintenance of the driving drum in the prior art, and the disassembly is time-consuming and laborious.

[0005] In order to achieve the above purpose, the utility model provides a connection structure between a driving drum and a speed reducer of a belt conveyor, including:

[0006] A speed reducer, on which a transmission coupling cylinder is provided;

[0007] A driving drum, a transmission shaft fixedly connected to the radial center of the driving drum and passing through both axial ends of the driving drum;

[0008] One end of the transmission shaft is provided with a connecting shaft inserted into the transmission coupling cylinder. There is a gap between the connecting shaft and the transmission coupling cylinder. The connecting shaft is provided with a first tapered shaft and a second tapered shaft. After the first tapered shaft and the second tapered shaft are inserted into the transmission coupling cylinder, they are respectively located at the front and rear ends of the transmission shaft hole;

[0009] A first tapered sleeve, fittingly sleeved on the first tapered shaft and closely arranged against the hole wall of the transmission coupling cylinder;

[0010] The second tapered sleeve is fittedly sleeved on the second tapered shaft and is arranged closely against the hole wall of the transmission coupling cylinder. A flanging that fits closely against the side wall of the speed reducer is provided on the second tapered sleeve.

[0011] The fixed pressing plate is fixedly connected to the first tapered shaft and the first tapered sleeve through screws.

[0012] Furthermore, the length of the first tapered sleeve is less than the length of the first tapered shaft, and the length of the first tapered sleeve is greater than the length of the second tapered sleeve.

[0013] Furthermore, the minimum diameter of the second tapered shaft is greater than the maximum diameter of the first tapered shaft.

[0014] Advantages of the present utility model: Compared with the prior art, by fittingly sleeving the first tapered sleeve on the first tapered shaft and arranging it closely against the hole wall of the transmission coupling cylinder, and fittingly sleeving the second tapered sleeve on the second tapered shaft and arranging it closely against the hole wall of the transmission coupling cylinder, a flanging that fits closely against the side wall of the speed reducer is provided on the second tapered sleeve, and the fixed pressing plate is fixedly connected to the first tapered shaft and the first tapered sleeve through screws, so that through the extrusion fit of the tapered surface, the connecting shaft can be firmly locked in the transmission coupling cylinder provided on the speed reducer and is concentric with the connecting shaft hole. And during the disassembly process, only by withdrawing the first tapered sleeve and the second tapered sleeve from the transmission coupling cylinder can the transmission shaft be disassembled and taken out from the speed reducer, reducing the disassembly time and the disassembly difficulty. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a connection structure between a belt conveyor driving drum and a speed reducer of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of part A in

[0017] Description of the Reference Numerals in the Drawings

[0018] 10 - Speed reducer; 11 - Transmission coupling cylinder;

[0019] 20 - Driving drum; 21 - Transmission shaft; 22 - Connecting shaft; 23 - First tapered shaft; 24 - Second tapered shaft;

[0020] 30 - First tapered sleeve; 31 - Fixed pressing plate;

[0021] 40 - Second tapered sleeve; 41 - Flanging. Detailed Description of the Embodiment

[0022] The following provides a detailed description of the present utility model in combination with specific embodiments.

[0023] In the present utility model, when directional terms appear, these directional terms are for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0024] In the present utility model, unless otherwise clearly defined and limited, when terms such as "arranged on", "connected", "coupled" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and can be internally connected and communicated between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] As Figure 1 and Figure 2 As shown, a connection structure between a belt conveyor drive drum 20 and a speed reducer 10 includes a speed reducer 10, a drive drum 20, a first tapered sleeve 30, a second tapered sleeve 40, and a fixed pressing plate 31.

[0026] The speed reducer 10 is provided with a transmission coupling cylinder 11 for connecting a transmission shaft 21 on the drive drum 20.

[0027] The radial center of the drive drum 20 is fixedly connected with a transmission shaft 21 that penetrates through both axial ends of the drive drum 20. One end of the transmission shaft 21 is provided with a connecting shaft 22 inserted into the transmission coupling cylinder 11. The connecting shaft 22 is provided with a first tapered shaft 23 and a second tapered shaft 24. After the first tapered shaft 23 and the second tapered shaft 24 are inserted into the transmission coupling cylinder 11, they are respectively located at the front and rear ends of the hole of the transmission shaft 21.

[0028] The first tapered sleeve 30 is fittedly sleeved on the first tapered shaft 23 and is tightly arranged against the hole wall of the transmission coupling cylinder 11. Through the conical surface extrusion and locking between the first tapered sleeve 30 and the first tapered shaft 23, the connecting shaft 22 and the transmission coupling cylinder 11 are concentrically arranged.

[0029] The second tapered sleeve 40 is fittedly sleeved on the second tapered shaft 24 and is tightly arranged against the hole wall of the transmission coupling cylinder 11. The second tapered sleeve is provided with a flange 41 that closely fits against the side wall of the speed reducer 10, which is used to cooperate with the first tapered sleeve 30 to lock the connecting shaft 22 in the transmission coupling cylinder 11 and make the connecting shaft 22 and the transmission coupling cylinder 11 concentrically arranged. Among them, the minimum diameter of the second tapered shaft 24 is greater than the maximum diameter of the first tapered shaft 23.

[0030] The fixed pressing plate 31 is fixedly connected to the first tapered shaft 23 and the first tapered sleeve 30 by screws to fix the part of the connecting shaft 22 in the transmission coupling cylinder 11.

[0031] In specific implementation, first, the second tapered sleeve 40 is sleeved on the second tapered shaft 24 and inserted into the transmission coupling cylinder 11. Then, the first tapered sleeve 30 is sleeved on the first tapered shaft 23 and located within the transmission coupling cylinder 11. The fixed pressing plate 31 is tightened and fixed to the first tapered shaft 23 and the first tapered sleeve 30 through screws, so that the inclined surfaces of the second tapered sleeve 40 and the second tapered shaft 24 are tightened to the limit position for locking, thereby enabling the connecting shaft 22 and the transmission coupling cylinder 11 to be concentrically arranged and fixed. When disassembly is required, first loosen the screws of the fixed pressing plate 31 with the first tapered sleeve 30 and the connecting shaft 22, raise the fixed pressing plate 31 by about 5 millimeters, tighten the screws connecting the fixed pressing plate 31 and the first tapered sleeve 30, pull the fixed pressing plate, and disassemble the first tapered sleeve 30. Then, by turning the nut on the transmission shaft 21 near the second tapered sleeve 40 to press against the second tapered sleeve 40, the transmission shaft 21 is loosened and withdrawn in the opposite direction of the pressing force, and the second tapered sleeve 40 is disassembled, thus releasing the mating connection between the connecting shaft 22 and the transmission coupling cylinder 11, and the connecting shaft 22 can be easily taken out from the transmission coupling cylinder 11.

[0032] In this embodiment, the length of the first tapered sleeve 30 is less than the length of the first tapered shaft 23, and the length of the first tapered sleeve 30 is greater than the length of the second tapered sleeve 40, so as to facilitate the tightening of the second tapered sleeve 40 within the transmission coupling cylinder 11 when connecting the screws through the fixed pressing plate 31.

[0033] In this embodiment, the connecting shaft 22, the first tapered shaft 23, and the second tapered shaft 24 are of an integral structure, which is convenient for forming and processing.

[0034] In this embodiment, the second tapered sleeve and the flanging 41 are of an integral structure, and this structure is a tapered shaft sleeve structure in the prior art.

[0035] Without conflict, the above embodiments and the features in the embodiments can be combined with each other.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A connection structure between a belt conveyor driving roller and a reducer, characterized in that: include: A reducer, wherein the reducer is provided with a transmission coupling cylinder; A driving roller, wherein a transmission shaft penetrating through both axial ends of the driving roller is fixedly connected to the radial center of the driving roller; One end of the transmission shaft is provided with a connecting shaft inserted into the transmission coupling cylinder, a gap is formed between the connecting shaft and the transmission coupling cylinder, a first tapered shaft and a second tapered shaft are provided on the connecting shaft, and after the first tapered shaft and the second tapered shaft are inserted into the transmission coupling cylinder, they are respectively located at the front and rear ends of the transmission shaft hole; A first tapered sleeve is snugly sleeved on the first tapered shaft and is arranged close to the hole wall of the transmission coupling cylinder; A second tapered sleeve is snugly sleeved on the second tapered shaft and is arranged closely against the hole wall of the transmission coupling cylinder, and the second tapered sleeve is provided with a flange that is closely fitted against the side wall of the reducer; A fixed pressing plate is fastened to the first tapered shaft and the first tapered sleeve by screws.

2. The connection structure between the belt conveyor driving roller and the reducer according to claim 1, characterized in that: The length of the first cone sleeve is smaller than the length of the first cone shaft, and the length of the first cone sleeve is larger than the length of the second cone sleeve.

3. The connection structure between the belt conveyor driving roller and the reducer according to claim 1, characterized in that: The minimum diameter of the second tapered shaft is greater than the maximum diameter of the first tapered shaft.

4. The connection structure between the belt conveyor driving roller and the reducer according to claim 1, characterized in that: The connecting shaft is an integral structure with the first tapered shaft and the second tapered shaft.

5. The connection structure between the belt conveyor driving roller and the reducer according to claim 1, characterized in that: The second cone sleeve and the flange are an integral structure.

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