Roller supporting device of trolley

Abstract

The utility model discloses a roller supporting device of a trolley, which comprises a trolley body, two rows of moving components are arranged on the trolley body, the number of each row of moving components is three, each moving component comprises a mounting frame and rollers, a fixing frame is arranged on the mounting frame, a rotating shaft is arranged on the fixing frame, a push plate is in interference fit with the rotating shaft, and the rollers are arranged on the push plate. A pair of torsional springs is arranged on the rotating shaft, one end of each torsional spring is fixedly connected with the connecting plate, and through the fixing frame, the connecting plate, the rotating shaft, the push plate, the torsional springs and the cleaning plate, when the device is used, along with movement of the trolley body, the surface of a track can be cleaned in real time, and sundries such as broken stones can be effectively removed; according to the utility model, the interference of the sundries on the contact between the roller and the track is avoided, the stable operation of the trolley is ensured, the friction force between the roller and the track is reduced, the energy consumption is reduced, and meanwhile, the phenomenon that the trolley is blocked or deviated due to the sundries is reduced, so that the operation efficiency of the trolley is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to a roller support device for a trolley. Background Art

[0002] The tunnel lining trolley is a special equipment that must be used in the secondary lining during the tunnel construction process for the concrete lining construction of the tunnel inner wall. The concrete lining trolley is an indispensable non-standard product in the secondary lining during the tunnel construction process, mainly including simple lining trolleys, fully hydraulic automatic walking lining trolleys, and grid-type lining trolleys. The fully hydraulic lining trolley can be further divided into side-top-arch type, full-round needle beam type, bottom form needle beam type, full-round passing type, etc. The roller support device of the trolley is a key component to ensure the stable operation and load-bearing capacity of the trolley, usually including rollers, bearings, and support frames, and the rollers need to cooperate with the track, that is, the trolley moves on the track to change its position;

[0003] At present, due to the relatively complex environment during tunnel construction, there are often sundries such as gravel on the surface of the track during the movement of the trolley. These sundries not only affect the contact between the roller and the track, resulting in increased friction and energy consumption, but also cause damage to the roller and the track due to the movement of the roller, shortening their service life. Therefore, a roller support device for a trolley is proposed in view of the above situation. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that there are often sundries such as gravel on the surface of the track during the movement of the trolley in the prior art. These sundries not only affect the contact between the roller and the track, resulting in increased friction and energy consumption, and a roller support device for a trolley is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A roller support device for a trolley includes a trolley body, and two rows of moving components are arranged on the trolley body, and the number of each row of moving components is three.

[0007] Each moving component includes a mounting frame and a roller. A fixing frame is arranged on the mounting frame. A rotating shaft is arranged on the fixing frame. A push plate is in interference fit on the rotating shaft. A pair of torsion springs are arranged on the rotating shaft. One end of the torsion spring is fixedly connected with an adapter plate, and the end of the torsion spring far from the fixing frame is fixedly connected with the push plate. A cleaning plate is detachably installed at the end of the push plate far from the fixing frame.

[0008] Preferably, the fixing frame is in an inverted "U" shape. A bearing is arranged at one end of the fixing frame, and a through hole is arranged at the other end of the fixing frame. The two ends of the rotating shaft are respectively matched with the bearing and the through hole.

[0009] Preferably, a connecting plate is provided on the top of the fixing frame, and a pair of fastening bolts are provided on the connecting plate, and the pair of fastening bolts pass through the connecting plate and cooperate with the mounting frame.

[0010] Preferably, the connecting plate is provided with through holes that cooperate with the fastening bolts, and the mounting frame is provided with threaded holes that cooperate with a pair of fastening bolts.

[0011] Preferably, a hollow hole is provided on the push plate, and the hollow hole cooperates with the rotating shaft.

[0012] Preferably, a slot is provided at the bottom of the push plate, a cleaning plate is arranged in the slot, a positioning hole is provided on the top of the cleaning plate, a bolt hole connected to the slot is provided on the surface of the push plate, a fixing bolt is fitted in the bolt hole, and the fixing bolt passes through the bolt hole and cooperates with the positioning hole.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model adopts the structural design of the fixed frame, the connecting plate, the rotating shaft, the push plate, the torsion spring and the cleaning plate. When the device is used, as the trolley body moves, the track surface can be cleaned in real time, and debris such as gravel can be effectively removed, thereby avoiding the interference of these debris on the contact between the roller and the track, ensuring the smooth operation of the trolley, and reducing the friction between the roller and the track, reducing energy consumption, and at the same time reducing the trolley jamming or deviation caused by debris, thereby improving the operation efficiency of the trolley.

[0015] 2. The utility model uses the structural design of the connecting plate, slot, cleaning plate, positioning hole and fixing bolts to enable the staff to easily replace the cleaning plate with a new one according to the degree of wear of the cleaning plate, thereby ensuring the cleaning quality of the track surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the push plate proposed by the utility model;

[0018] Figure 3 The utility model proposed Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0019] Figure 4 This is a schematic diagram of the assembly structure of the cleaning plate proposed by the utility model;

[0020] Figure 5 The utility model proposed Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] In the figure: 1. Trolley body; 2. Moving component; 201. Mounting bracket; 202. Roller; 3. Fixed bracket; 4. Connecting plate; 5. Rotating shaft; 6. Pushing plate; 601. Hollow hole; 602. Slot; 7. Torsion spring; 8. Cleaning plate; 801. Positioning hole; 9. Fixed bolt. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figure 1-5 , a roller support device for a trolley, including a trolley body 1, on which two rows of moving components 2 are arranged, and the number of each row of moving components 2 is three.

[0024] Each moving component 2 includes a mounting bracket 201 and a roller 202. A fixed bracket 3 is arranged on the mounting bracket 201. A connecting plate 4 is arranged at the top of the fixed bracket 3. A pair of fastening bolts are arranged on the connecting plate 4. The pair of fastening bolts pass through the connecting plate 4 and cooperate with the mounting bracket 201. Through holes for the fastening bolts are arranged on the connecting plate 4, and threaded holes for cooperating with the pair of fastening bolts are arranged on the mounting bracket 201. Further, the installation and disassembly of the fixed bracket 3 can be realized through the fastening bolts. A rotating shaft 5 is arranged on the fixed bracket 3. The shape of the fixed bracket 3 is in an inverted "U" shape. A bearing is arranged at one end of the fixed bracket 3, and a through hole is arranged at the other end of the fixed bracket 3. The two ends of the rotating shaft 5 are respectively in cooperation with the bearing and the through hole. A pushing plate 6 is in interference fit with the rotating shaft 5. The inclination angle between the pushing plate 6 and the track is 45° - 60°. A hollow hole 601 is arranged on the pushing plate 6, and the hollow hole 601 is in interference fit with the rotating shaft 5. A pair of torsion springs 7 are arranged on the rotating shaft 5. One end of the torsion spring 7 is fixedly connected to the connecting plate 4, and the end of the torsion spring 7 far from the fixed bracket 3 is fixedly connected to the pushing plate 6. A cleaning plate 8 is detachably installed at the end of the pushing plate 6 far from the fixed bracket 3. The cleaning plate 8 contacts the track. The roller 202 drives the trolley body 1 to move on the track. As the roller 202 moves, the pushing plate 6 follows the movement, so that the cleaning plate 8 can move to push the gravel and other impurities falling on the track, ensuring the cleanliness of the track on the moving path of the roller 202 and ensuring the smooth operation of the trolley. A slot 602 is opened at the bottom of the pushing plate 6, and the cleaning plate 8 is arranged in the slot 602. A positioning hole 801 is arranged at the top of the cleaning plate 8. A bolt hole communicating with the slot 602 is arranged on the surface of the pushing plate 6. A fixed bolt 9 is fitted in the bolt hole, and the fixed bolt 9 passes through the bolt hole and cooperates with the positioning hole 801. By rotating the pushing plate 6 and removing the fixed bolt 9 with the help of tools such as a wrench, the cleaning plate 8 can be taken out of the slot 602, and then a new cleaning plate 8 can be replaced.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller support device for a trolley, comprising a trolley body (1), characterized in that: Two rows of moving components (2) are arranged on the trolley body (1), and the number of each row of the moving components (2) is three; Each of the moving components (2) includes a mounting bracket (201) and a roller (202). A fixing bracket (3) is arranged on the mounting bracket (201). A rotating shaft (5) is arranged on the fixing bracket (3). A push plate (6) is in interference fit on the rotating shaft (5). A pair of torsion springs (7) are arranged on the rotating shaft (5). One end of the torsion spring (7) is fixedly connected to an adapter plate (4), and the end of the torsion spring (7) away from the fixing bracket (3) is fixedly connected to the push plate (6). A cleaning plate (8) is detachably installed at the end of the push plate (6) away from the fixing bracket (3).

2. The roller support device of a trolley according to claim 1, characterized in that: The fixing bracket (3) is in the shape of an inverted "U". A bearing is arranged at one end of the fixing bracket (3), and a through hole is arranged at the other end of the fixing bracket (3). The two ends of the rotating shaft (5) are respectively fitted with the bearing and the through hole.

3. The roller support device of a trolley according to claim 1, characterized in that: An adapter plate (4) is arranged at the top of the fixing bracket (3). A pair of fastening bolts are arranged on the adapter plate (4), and the pair of fastening bolts pass through the adapter plate (4) and cooperate with the mounting bracket (201).

4. The roller support device of a trolley according to claim 3, characterized in that: Through holes for the fastening bolts are arranged on the adapter plate (4), and threaded holes for the pair of fastening bolts are arranged on the mounting bracket (201).

5. The roller support device of a trolley according to claim 1, characterized in that: Hollow holes (601) are arranged on the push plate (6), and the hollow holes (601) cooperate with the rotating shaft (5).

6. The roller support device of a trolley according to claim 5, characterized in that: A slot (602) is formed at the bottom of the push plate (6). The cleaning plate (8) is arranged in the slot (602). A positioning hole (801) is arranged at the top of the cleaning plate (8). A bolt hole communicating with the slot (602) is arranged on the surface of the push plate (6). A fixing bolt (9) is fitted in the bolt hole, and the fixing bolt (9) passes through the bolt hole and cooperates with the positioning hole (801).

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