Step chain transmission device with built-in rollers

Abstract

The utility model discloses an idler wheel built-in type step chain transmission device which comprises a step chain assembly, the step chain assembly comprises a first built-in idler wheel and a second built-in idler wheel, and rubber friction pads are fixedly installed on the outer side of the first built-in idler wheel and the outer side of the second built-in idler wheel. The first built-in rolling wheel and the second built-in rolling wheel are meshed in the steel groove, the steel groove is formed in the outer side of the rolling wheel disc, a protruding block is arranged on the outer side of the rolling wheel disc, an installation bent plate is placed in the steel groove of the rolling wheel disc, and direct contact between the rolling wheels and the steel groove is reduced through use of a nylon plate and a rubber friction pad; noise generated in the running process is effectively reduced, the phenomenon that the built-in rollers possibly slip when rotating in the steel tank is avoided, the phenomenon that the transmission efficiency is reduced directly due to the slip phenomenon is avoided, and energy waste caused by partial loss of power transmitted to the steps is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a roller-built-in ladder chain transmission device, in particular to a roller-built-in ladder chain transmission device. Background Art

[0002] The roller-integrated step chain drive is a mechanical transmission system widely used in vertical transportation equipment such as escalators and moving walkways. Its main feature is that the rollers are embedded in the steps, and the power is transmitted through the engagement of the chain with the drive sprocket, thereby driving the movement of the steps. It is widely used in escalators and moving walkways in public places such as large commercial buildings, shopping malls, airports, and stations.

[0003] In current roller-mounted step chain transmissions, when the motor starts, the drive sprocket begins to rotate. The drive sprocket engages the chain, transmitting power to the chain, which in turn drives the rollers inside the steps. The rollers are connected to the steps via bearings and can rotate freely. This rotation propels the steps smoothly up and down the guide rails. However, the built-in rollers on the step chain rotate within the steel grooves of the roller discs, which can cause them to slip. This slippage directly reduces transmission efficiency. When the rollers slip within the grooves, some of the power originally transmitted to the steps is lost, resulting in energy waste. Utility Model Content

[0004] The purpose of the utility model is to provide a roller-built-in ladder chain transmission device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a roller-built-in ladder chain transmission device, including a ladder chain assembly, characterized in that: the ladder chain assembly includes: a first built-in roller and a second built-in roller, the outer sides of the first built-in roller and the second built-in roller are fixedly installed with rubber friction pads, the first built-in roller and the second built-in roller are engaged in the inside of a steel groove, the steel groove is opened on the outside of a roller disc, a protrusion is provided on the outside of the roller disc, and a mounting curved plate is placed inside the steel groove of the roller disc.

[0006] As a further preferred embodiment of the present technical solution, second slots are provided on both side ends of the mounting curved plate, and the interior of the second slots is connected and fixed with the fixing plates via fixing bolts.

[0007] As a further preferred embodiment of the present technical solution, the fixing plate is engaged in the first slot and is connected and fixed in the first slot by a fixing bolt, and the first slot is opened in both side ends of the roller disc.

[0008] As a further preferred embodiment of the present technical solution, a nylon plate is fixedly mounted on the inner side of the mounting curved plate, and a surface of the nylon plate contacts a rubber friction pad.

[0009] As a further preferred embodiment of the present technical solution, connecting guide pillars are fixedly installed inside the first built-in roller and the second built-in roller, and one end of the connecting guide pillars connects and fixes the first connecting curved rod and the second connecting curved rod through a connecting bolt.

[0010] As a further preferred embodiment of the present technical solution, the lower ends of the first connecting curved rod and the second connecting curved rod are provided with concave grooves, and the interiors of the concave grooves engage with protrusions.

[0011] As a further preferred embodiment of the present technical solution, a driving spindle is installed inside the roller disc, and a sprocket assembly is installed at one end of the driving spindle.

[0012] The utility model provides a roller-built-in ladder chain transmission device, which has the following beneficial effects:

[0013] (1) The utility model reduces the direct contact between the roller and the steel trough by using nylon plates and rubber friction pads, effectively reduces the noise generated during operation, and avoids the slipping of the built-in roller when rotating inside the steel trough. Avoiding the slipping phenomenon will directly lead to a decrease in transmission efficiency, reduce the partial loss of power transmitted to the steps, and cause energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the built-in roller structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the roller disc and steel trough structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the curved plate and nylon plate of the utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the ladder chain assembly of the utility model;

[0019] In the figure: 100, driving spindle; 200, ladder chain assembly; 201, nylon plate; 202, first built-in roller; 203, second built-in roller; 204, roller disc; 205, bump; 206, steel groove; 207, first slot; 208, mounting bent plate; 209, second slot; 210, fixing plate; 211, fixing bolt; 212, rubber friction pad; 213, first connecting bent rod; 214, concave groove; 215, second connecting bent rod; 216, connecting bolt; 217, connecting guide column; 300, sprocket assembly. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-5 As shown, in this embodiment, a roller-built-in ladder chain transmission device includes a ladder chain assembly 200, and the ladder chain assembly 200 includes: a first built-in roller 202 and a second built-in roller 203, the outer sides of the first built-in roller 202 and the second built-in roller 203 are fixedly installed with a rubber friction pad 212, the first built-in roller 202 and the second built-in roller 203 are engaged with the inside of the steel groove 206, the steel groove 206 is opened on the outer side of the roller disc 204, the outer side of the roller disc 204 is provided with a protrusion 205, and a mounting curved plate 208 is placed inside the steel groove 206 of the roller disc 204, and a second slot 209 is opened on both sides of the mounting curved plate 208. The interior of the second slot 209 is connected and fixed to the fixing plate 210 by a fixing bolt 211, and the fixing plate 210 is connected to the fixing plate 210 by the fixing bolt 211 by being engaged with the inside of the first slot 207. The first slot 207 is fixed inside the first slot 207, and the first slot 207 is opened in the two side ends of the roller disc 204. A nylon plate 201 is fixedly installed on the inner side of the mounting curved plate 208, and the surface of the nylon plate 201 contacts the rubber friction pad 212. In actual use, when the drive motor system is started, the transmission sprocket starts to rotate, the drive sprocket engages with the chain, and the power is transmitted to the chain. The chain drives the roller disc 204 of the step to rotate, and the rotation of the roller disc 204 drives the step to rise or fall smoothly along the guide rail. The steel groove 206 is opened on the outer side of the roller disc 204 to accommodate and guide the movement of the roller. The nylon plate 201 is installed on the inner side of the mounting curved plate 208 and contacts the rubber friction pad 212 to provide additional wear resistance and reduce noise. The rubber friction pad 212 is fixed on the outer side of the first built-in roller 202 and the second built-in roller 203 to increase friction and prevent slipping.

[0022] The use of the nylon plate 201 and the rubber friction pad 212 reduces the direct contact between the roller and the steel groove 206, effectively reduces the noise generated during operation, and avoids the built-in roller from slipping when rotating inside the steel groove 206. Avoiding slipping will directly lead to a decrease in transmission efficiency, reduce partial loss of power transmitted to the steps, and cause energy waste.

[0023] like Figure 1 、 Figure 3 、 Figure 5 As shown, the first built-in roller 202 and the second built-in roller 203 are fixedly installed with a connecting guide column 217, one end of the connecting guide column 217 connects and fixes the first connecting curved rod 213 and the second connecting curved rod 215 through a connecting bolt 216, and the lower ends of the first connecting curved rod 213 and the second connecting curved rod 215 are provided with a concave groove 214, and the inner meshing protrusion 205 of the concave groove 214 engages with the inner meshing protrusion 205, and the roller disc 204 is installed with a driving spindle 100, and one end of the driving spindle 100 is installed with a sprocket assembly 300. In actual use, the lower ends of the first connecting curved rod 213 and the second connecting curved rod 215 are provided with a concave groove 214, and the inner meshing protrusion 205 of the concave groove 214 further ensures the movement accuracy and stability of the roller in the steel groove 206, and the connecting guide column 217 connects and fixes the first connecting curved rod 213 and the second connecting curved rod 215, ensuring the stability and synchronization of the roller during movement.

[0024] The utility model provides a roller-built-in ladder chain transmission device, the specific working principle of which is as follows: when the drive motor system is started, the drive sprocket begins to rotate, the drive sprocket engages with the chain, and the power is transmitted to the chain. The chain drives the roller disc 204 of the ladder to rotate, and the rotation of the roller disc 204 drives the ladder to rise or fall smoothly along the guide rail. The steel groove 206 is opened on the outside of the roller disc 204 to accommodate and guide the movement of the roller. The nylon plate 201 is installed on the inner side of the mounting curved plate 208 and contacts the rubber friction pad 212 to provide additional wear resistance. In order to reduce noise, a rubber friction pad 212 is fixed on the outside of the first built-in roller 202 and the second built-in roller 203 to increase friction and prevent slipping. Then, a concave groove 214 is opened at the lower end of the first connecting curved rod 213 and the second connecting curved rod 215. The internal engaging protrusion 205 of the concave groove 214 further ensures the movement accuracy and stability of the roller in the steel groove 206. The connecting guide column 217 connects and fixes the first connecting curved rod 213 and the second connecting curved rod 215 to ensure the stability and synchronization of the roller during movement.

[0025] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller-integrated step chain transmission device, comprising a step chain assembly (200), characterized in that: The step chain assembly (200) comprises: a first built-in roller (202) and a second built-in roller (203); a rubber friction pad (212) is fixedly installed on the outer sides of the first built-in roller (202) and the second built-in roller (203); the first built-in roller (202) and the second built-in roller (203) are engaged in a steel groove (206); the steel groove (206) is opened on the outer side of a roller disc (204); a protrusion (205) is provided on the outer side of the roller disc (204); and a mounting curved plate (208) is placed inside the steel groove (206) of the roller disc (204).

2. The roller-integrated step chain transmission device according to claim 1, characterized in that: Second slots (209) are provided at both side ends of the installation curved plate (208), and the interior of the second slots (209) is connected and fixed to the fixing plate (210) via fixing bolts (211).

3. The roller-integrated step chain transmission device according to claim 2, characterized in that: The fixing plate (210) is engaged with the interior of the first slot (207), and the fixing plate (210) is connected and fixed to the interior of the first slot (207) via a fixing bolt (211). The first slot (207) is provided in both side ends of the roller disc (204).

4. The roller-integrated step chain transmission device according to claim 3, characterized in that: A nylon plate (201) is fixedly mounted on the inner side of the mounting curved plate (208), and a surface of the nylon plate (201) contacts a rubber friction pad (212).

5. The roller-integrated step chain transmission device according to claim 1, characterized in that: A connecting guide column (217) is fixedly installed inside the first built-in roller (202) and the second built-in roller (203), and one end of the connecting guide column (217) connects and fixes the first connecting curved rod (213) and the second connecting curved rod (215) through a connecting bolt (216).

6. The roller-integrated step chain transmission device according to claim 5, characterized in that: The lower ends of the first connecting curved rod (213) and the second connecting curved rod (215) are provided with concave grooves (214), and the concave grooves (214) are internally engaged with protrusions (205).

7. The roller-integrated step chain transmission device according to claim 1, characterized in that: A driving spindle (100) is installed inside the roller disc (204), and a sprocket assembly (300) is installed at one end of the driving spindle (100).

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