Telescopic rotary type pouring device

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a telescopic rotary type pouring device which comprises a fixing sleeve, a telescopic pipe and a driving assembly, the driving assembly comprises a power source, a driving gear, a driven gear and a driving mounting plate, the driving mounting plate is arranged on the fixing sleeve, and the telescopic pipe is arranged on the driving mounting plate. The power source, the driving gear and the driven gear are all fixed to the fixing sleeve. The telescopic rotary type pouring device is simple in overall structure; the fixed sleeve is movably arranged on the telescopic pipe in a sleeving mode, the first limiting part on the telescopic pipe and the second limiting part on the driven gear are combined to achieve telescopic limiting and rotary limiting of the telescopic pipe in the fixed sleeve, and stretching and retracting actions of the telescopic pipe can be achieved through telescopic movement of a telescopic device of the material distributing machine. The whole pouring device can be ensured to drive the telescopic pouring pipe to synchronously extend or retract under the driving of the telescopic power of the material distributing machine system, can be matched with material distributing machine systems of any model, and is high in adaptability.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a telescopic rotary pouring device. Background Technology

[0002] Currently, the main methods for tunnel arch construction in China include direct-pump and inclined-pump methods. A lining trolley equipped with a placing unit pumps concrete from a concrete pump truck into a four-hole system on the arch, which is then poured into the arch-shaped steel membrane. The concrete is poured from the completed lining end towards the end until the lining is fully filled. However, pouring from the bottom up creates an air-stopping effect, preventing air from escaping and forming cavities or voids. This results in low concrete strength and eventual detachment, complicating the grouting process and wasting significant manpower and resources.

[0003] In existing technologies, a few arch-shaped pouring structures with self-extension and rotation often use self-extension cylinders to achieve the expansion and contraction of the pouring opening. However, if the cylinder installation distance is too large, the torque on the pouring opening during rotation can easily lead to problems such as oil leakage or damage to the hydraulic cylinder. Furthermore, an excessively large installation distance can result in insufficient installation space, thus requiring a larger secondary lining cross-section and limiting its applicability. When this structure is used in conjunction with a concrete placing system, it is difficult to ensure the synchronization between the pouring opening expansion cylinder and the concrete placing system expansion cylinder, making operation quite complex.

[0004] In summary, there is an urgent need for a casting device with a simple structure, combining telescopic and rotational functions, and strong adaptability to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this utility model is to provide a pouring device with a simple structure, which can combine telescopic and rotational functions and has strong adaptability. The specific technical solution is as follows:

[0006] A telescopic rotary pouring device includes a fixed sleeve, a telescopic tube, and a drive assembly;

[0007] The telescopic tube is movably inserted into the fixed sleeve; the telescopic tube is provided with a first limiting part;

[0008] The drive assembly includes a power source, a drive gear, a driven gear, and a drive mounting plate. The drive mounting plate is disposed on the fixed sleeve. The power source is disposed on the drive mounting plate and the drive gear is disposed at the output end of the power source. The driven gear meshes with the drive gear. The driven gear is provided with a second limiting part that matches the first limiting part.

[0009] Preferably, the second limiting part can cooperate with the first limiting part to realize the rotational limiting of the telescopic tube in the radial direction of the fixed sleeve and the sliding guidance in the axial direction of the fixed sleeve.

[0010] Preferably, the first limiting part is a limiting groove and the second limiting part is a limiting boss; or, the first limiting part is a limiting boss and the second limiting part is a limiting groove.

[0011] Preferably, the first limiting part is a key and the second limiting part is a keyway; or, the first limiting part is a keyway and the second limiting part is a key.

[0012] Preferably, the fixing sleeve is provided with a connection part for connecting to the trolley template; or, the fixing sleeve is fixed or detachably connected to the trolley template by a sealing plate.

[0013] Preferably, the telescopic tube is provided with a first scale along the telescopic direction; and / or, the telescopic tube is provided with a second scale along its circumferential rotation direction.

[0014] Preferably, the telescopic tube is further provided with a limiting plate; the fixed sleeve is further provided with a support plate, which can cooperate with the limiting plate to limit the extension of the telescopic tube within the fixed sleeve; a pad is provided between the support plate and the drive mounting plate, and the support plate, drive mounting plate and pad form a cavity for the drive gear and driven gear to rotate; along the axial direction of the telescopic tube, the height of the pad is H, the thickness of the drive gear is D1, the thickness of the driven gear is D2, and H > D1 and H > D2 are satisfied.

[0015] Preferably, the support plate is provided with a first through hole and a second through hole, the output end of the power source is provided through the first through hole and the drive gear is fixed by the end cover; the telescopic tube is provided movably through the second through hole.

[0016] Preferably, the power source is an electric motor or a hydraulic motor; the telescopic pipe is also provided with a pipe clamp connected to the telescopic device of the fabric placing machine.

[0017] Preferably, the drive mounting plate is also provided with a lubricating oil channel.

[0018] The application of the technical solution of this utility model has the following beneficial effects:

[0019] (1) The telescopic rotary pouring device of this utility model includes a fixed sleeve, a telescopic tube and a drive assembly. The drive assembly includes a power source, a drive gear, a driven gear and a drive mounting plate. The drive mounting plate is set on the fixed sleeve. The power source, drive gear and driven gear are all fixed on the fixed sleeve. The overall structure of the telescopic rotary pouring device of this utility model is simplified. The fixed sleeve is movably sleeved on the telescopic tube. The first limiting part on the telescopic tube and the second limiting part on the driven gear are combined to realize the telescopic limiting and rotation limiting of the telescopic tube in the fixed sleeve. The extension and retraction of the telescopic tube can be realized by the telescopic movement of the telescopic device of the placing machine. It can ensure that the entire pouring device drives the telescopic pouring tube to extend or retract synchronously under the telescopic power of the placing machine system. It can be matched with any type of placing machine system. The drive assembly can drive the telescopic tube to rotate relative to the fixed sleeve to realize the adjustment of the pouring position. It has strong adaptability. The drive assembly for the rotation of the telescopic tube does not need to move up and down with the telescopic tube. It reduces space and avoids interference with other objects.

[0020] (2) In this utility model, the first limiting part and the second limiting part can be a combination of limiting boss and limiting groove, or a key and keyway can be used. The structure is simple and can meet the requirements of telescopic guidance, axial telescopic limit position and circumferential rotation limit.

[0021] (3) The present invention also includes a combination of a limiting plate and a support plate to limit the extension of the telescopic pipe in the fixed sleeve, prevent excessive extension, and improve the casting quality.

[0022] (4) In this utility model, the telescopic pipe is provided with a first scale along the telescopic direction and / or a second scale along its circumferential rotation direction, so as to control the extension distance and / or rotation angle, thereby controlling the concrete feeding direction and feeding height, controlling the pouring situation in real time, and improving the pouring quality.

[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the telescopic rotary pouring device in the embodiment (telescopic pipe extended state);

[0026] Figure 2 yes Figure 1A schematic diagram of the retracted telescopic pipe in the telescopic rotary casting device.

[0027] Figure 3 yes Figure 1 A schematic diagram of the connection between the drive gear, driven gear, and telescopic tube;

[0028] Among them, 1. fixed sleeve, 2. telescopic tube, 3. power source, 4. drive gear, 5. driven gear, 6. drive mounting plate, 7. support plate, 8. limiting plate, 9. first limiting part, 10. end cover, 11. connecting plate, 12. first scale, 13. second scale, 14. second limiting part, 15. trolley template, 16. grease nipple, 17. sealing plate, 18. pad block. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0030] Example:

[0031] See Figure 1 and Figure 2 A telescopic rotary casting device includes a fixed sleeve 1, a telescopic pipe 2, and a driving assembly, with the following specific structure:

[0032] The telescopic tube 2 is movably inserted into the fixed sleeve 1; see also Figure 3 The telescopic tube 2 is provided with a first limiting part 9.

[0033] The drive assembly includes a power source 3, a drive gear 4, a driven gear 5, and a drive mounting plate 6. The drive mounting plate 6 is disposed on the fixed sleeve 1. The power source 3 is disposed on the drive mounting plate 6, and the drive gear 4 is disposed at the output end of the power source 3. The driven gear 5 meshes with the drive gear 4. (See also...) Figure 3 The driven gear 5 is provided with a second limiting part 14, which can cooperate with the first limiting part 9 to limit the telescopic tube 2 in the radial direction of the fixed sleeve 1 and guide it in the axial direction of the fixed sleeve 1. The first limiting part 9 is a limiting groove, and the second limiting part 14 is a limiting boss, as detailed in [link to details]. Figure 3 More preferably, in this embodiment, the first limiting part 9 is disposed in the lower middle part of the telescopic tube 2, which facilitates the telescopic tube 2 as... Figure 2 The limit when the middle moves downward and retracts.

[0034] In addition, the first limiting part can be designed as a limiting boss, and the second limiting part can be designed as a matching limiting groove. Furthermore, the first and second limiting parts can also be a combination of a key and a keyway. The design can be adapted to the specific circumstances.

[0035] In a preferred embodiment, the upper end of the fixing sleeve 1 is provided with a connecting plate 11, and the fixing sleeve 1 is fixedly or detachably connected to the sealing plate 17 on the trolley template 15 through the connecting plate 11. See details. Figure 1 and Figure 2 The diagram illustrates that the connecting plate 11 and the sealing plate 17 are detachably connected using a combination of bolts and nuts. Additionally, the fixing sleeve 1 may also have a connection point for connecting to the trolley template 15, i.e., the fixing sleeve 1 is directly fixed to the trolley template 15 (not shown). Preferably, in this embodiment, mounting holes for the sealing plate 17 are pre-drilled on the trolley template. During installation, the sealing plate 17 is riveted and welded to the template panel, and then the entire telescopic rotary pouring device is installed on the sealing plate 17 via the connecting plate 11 above the fixing sleeve 1.

[0036] In this preferred embodiment, the telescopic pipe 2 is provided with a first scale 12 along the telescopic direction; the telescopic pipe 2 is also provided with a second scale 13 along its circumferential rotation direction. By setting vertical scale symbols (i.e., the first scale) and circumferential scale symbols (i.e., the second scale) on the telescopic pipe, the extension distance and rotation angle can be controlled, thereby controlling the concrete feeding direction and feeding height, and controlling the pouring situation in real time.

[0037] In this preferred embodiment, the telescopic tube 2 is further provided with a limiting plate 8; the fixed sleeve 1 is further provided with a support plate 7, which can cooperate with the limiting plate 8 to limit the extension of the telescopic tube 2 within the fixed sleeve 1. More preferably, the limiting plate is an annular limiting plate. The support plate 7 is provided with a first through hole and a second through hole. The output end of the power source 3 passes through the first through hole and is fixed to the drive gear 4 by the end cap 10; the telescopic tube 2 is movably disposed through the second through hole. Here, the lower shaft of the power source 3 is connected to the drive gear 4 via a keyway. The lower shaft of the power source 3 is provided with a threaded hole. The end cap 10 supports the drive gear 4 and is connected to the threaded hole on the lower shaft of the power source 3 with bolts, thus fixing the end cap 10 to the end of the power source 3, ensuring transmission while facilitating installation and disassembly. A pad 18 is provided between the support plate 7 and the drive mounting plate 6. The support plate 7, the drive mounting plate 6, and the pad 18 form a cavity for the drive gear 4 and the driven gear 5 to rotate, ensuring that the driven gear 5 can rotate. In a further preferred embodiment, along the axial direction of the telescopic tube 2, the height of the pad 18 is H, the thickness of the drive gear 4 is D1, and the thickness of the driven gear 5 is D2, and H > D1 and H > D2 are satisfied.

[0038] In this preferred embodiment, the power source 3 is an electric motor or a hydraulic motor. The telescopic pipe 2 is also equipped with a pipe clamp connected to the telescopic device of the fabric placing machine. The drive mounting plate 6 is also equipped with a lubricating oil channel, which communicates with the grease fitting 16.

[0039] The technical solution applied in this embodiment is specifically (a specific method is disclosed):

[0040] The telescopic tube 2 can extend, retract, and rotate within the fixed sleeve 1. The telescopic device of the fabric placing machine is connected to the bottom of the telescopic tube 2 using pipe clamps, thereby causing the telescopic tube 2 to extend and retract (e.g., Figure 1 (As shown). The lower end of the telescopic tube 2 is provided with a limiting plate 8, which extends and limits the tube when it abuts against the support plate 7.

[0041] Driven gear 5 is supported by support plate 7. When telescopic tube 2 retracts, the first limiting part 9 and the second limiting part 14 contact each other to limit the retraction (e.g., Figure 2 As shown, the second limiting part 14 is a boss, and the first limiting part 9 is a groove set in the lower part of the telescopic tube 2. During the retraction of the telescopic tube 3, the boss gradually slides upward from the bottom of the groove. When it slides to the top of the groove, the telescopic tube 2 retracts to its lowest position, achieving the effect that the top of the telescopic tube 2 is flush with the trolley panel after retraction (e.g., Figure 2 (As shown in the retracted state).

[0042] The lower end of the telescopic pipe 2 is equipped with a vertical scale symbol (i.e., the first scale 12) for observing and controlling the extension distance of the telescopic pipe; the lower end of the telescopic pipe 2 is equipped with a horizontal scale symbol (i.e., the second scale 13) for observing the angle of rotation of the telescopic pipe relative to the fixed sleeve. Through the vertical and circumferential scale symbols, the extension distance and rotation angle of the telescopic pipe can be observed and controlled, thereby controlling the direction and height of concrete feeding and preventing aggregate accumulation.

[0043] The telescopic rotary pouring device of this embodiment does not require a built-in telescopic drive unit, thus solving the problems of asynchronous operation and complex operation between the built-in telescopic device and the concrete placing boom's telescopic device. This embodiment, through its simplified pouring device design, ensures that it can both telescopically extend and rotate, achieving not only the goal of controlling the pouring direction and flow rate of the tunnel secondary lining concrete, but also a more refined overall structure, requiring less installation space, having a wider range of applications, and being simpler to operate.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A telescopic rotary casting device, characterized in that, It includes a fixed sleeve (1), a telescopic tube (2), and a drive assembly; The telescopic tube (2) is inserted into the fixed sleeve (1) and is movably disposed therein; the telescopic tube (2) is provided with a first limiting part (9); The drive assembly includes a power source (3), a drive gear (4), a driven gear (5), and a drive mounting plate (6). The drive mounting plate (6) is disposed on the fixed sleeve (1). The power source (3) is disposed on the drive mounting plate (6), and the drive gear (4) is disposed at the output end of the power source (3). The driven gear (5) meshes with the drive gear (4). The driven gear (5) is provided with a second limiting part (14) that matches the first limiting part (9).

2. The telescopic rotary casting device according to claim 1, characterized in that, The second limiting part (14) can cooperate with the first limiting part (9) to realize the rotational limiting of the telescopic tube (2) in the radial direction of the fixed sleeve (1) and the sliding guidance in the axial direction of the fixed sleeve (1).

3. The telescopic rotary casting device according to claim 1, characterized in that, The first limiting part (9) is a limiting groove, and the second limiting part (14) is a limiting boss; Alternatively, the first limiting part (9) may be a limiting boss, and the second limiting part (14) may be a limiting groove.

4. The telescopic rotary casting device according to claim 1, characterized in that, The first limiting part (9) is a key, and the second limiting part (14) is a keyway; Alternatively, the first limiting part (9) may be a keyway, and the second limiting part (14) may be a key.

5. The telescopic rotary casting device according to claim 1, characterized in that, The fixed sleeve (1) is provided with a connection part for connecting with the trolley template; or, the fixed sleeve (1) is fixed or detachably connected to the trolley template through a sealing plate (17).

6. The telescopic rotary casting device according to any one of claims 1-5, characterized in that, The telescopic tube (2) is provided with a first scale (12) along the telescopic direction; And / or, the telescopic tube (2) is provided with a second scale (13) along its circumferential rotation direction.

7. The telescopic rotary casting device according to any one of claims 1-5, characterized in that, The telescopic tube (2) is also provided with a limiting plate (8); the fixed sleeve (1) is also provided with a support plate (7), which can cooperate with the limiting plate (8) to limit the extension of the telescopic tube (2) inside the fixed sleeve (1); A pad (18) is provided between the support plate (7) and the drive mounting plate (6). The support plate (7), the drive mounting plate (6) and the pad form a cavity for the drive gear and the driven gear to rotate. Along the axial direction of the telescopic tube, the height of the pad (18) is H, the thickness of the drive gear (4) is D1, and the thickness of the driven gear (5) is D2, and H > D1 and H > D2 are satisfied.

8. The telescopic rotary casting device according to claim 7, characterized in that, The tray (7) is provided with a first through hole and a second through hole. The output end of the power source (3) passes through the first through hole and is fixed to the drive gear (4) by the end cover (10). The telescopic tube (2) passes through the second through hole and is movably disposed.

9. The telescopic rotary casting device according to any one of claims 1-5, characterized in that, The power source (3) is an electric motor or a hydraulic motor; the telescopic pipe (2) is also provided with a pipe clamp connected to the telescopic device of the fabric laying machine.

10. The telescopic rotary casting device according to claim 1, characterized in that, The drive mounting plate (6) is also provided with a lubricating oil channel.

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