Sealing structure of pulp shooting machine for tunnel supporting

Abstract

The utility model relates to the technical field of shotcreting machines, in particular to a sealing structure of a shotcreting machine for tunnel supporting, which comprises a distributor and two wear-resisting plates, the distributor comprises an annular main body and a plurality of material holes which are arranged on the annular main body in a penetrating manner and are annularly arranged, and the two wear-resisting plates are fixedly connected to two sides of the annular main body. Each wear-resisting plate is provided with a rubber sealing layer, the rubber sealing layers make contact with the annular body, avoiding holes are formed in the positions, corresponding to the material holes, of the wear-resisting plates and the rubber sealing layers, and the avoiding holes and the material holes are located on the same axis. According to the sealing structure of the pulp shooting machine for tunnel supporting, the distributor and the two wear-resisting plates are fixedly connected together, the rubber sealing layer, the wear-resisting plates and the distributor are convenient to disassemble, the rubber sealing layer plays a sealing role, and the sealing effect of the rubber sealing layer is good.

Description

Technical Field

[0001] The utility model relates to the technical field of shotcrete support, in particular to a sealing structure of a shotcrete machine for tunnel support. Background Art

[0002] With the widespread use of shotcrete machines for tunnel support, higher requirements are placed on the convenience and speed of shotcrete machine maintenance. At present, the sealing method between the wear-resistant plate and the distributor of the shotcrete machine is that the wear-resistant plate is in sealing contact with multiple rubber material chambers on the distributor to seal the distributor. However, because a rubber material chamber is installed in each cavity in the distributor, as long as one rubber material chamber is damaged, the wear-resistant plate and the distributor need to be disassembled before a new rubber material chamber can be replaced; and leakage is prone to occur between the wear-resistant plate and the rubber material chamber, and the seal is prone to failure. This sealing method not only makes the replacement of the wear-resistant plate and the distributor cumbersome, but also makes the seal prone to failure. Therefore, there is an urgent need for a sealing structure for a shotcrete machine for tunnel support to solve the above problems. Utility Model Content

[0003] In order to solve the technical problem that the traditional sealing method between the wear-resistant plate and the distributor not only makes the replacement of the wear-resistant plate and the distributor cumbersome, but also the sealing is prone to failure, the utility model provides a sealing structure of a tunnel support shotcrete machine, the distributor and the two wear-resistant plates are fixedly connected together, the rubber sealing layer and the wear-resistant plate and the distributor are easy to disassemble, the rubber sealing layer plays a sealing role, and the rubber sealing layer has a good sealing effect.

[0004] The utility model provides a sealing structure for a tunnel support shotcrete machine, comprising a distributor and two wear-resistant plates, wherein the distributor comprises an annular main body and a plurality of material holes penetrating the annular main body and arranged in an annular shape, the two wear-resistant plates are fixedly connected on both sides of the annular main body, the two wear-resistant plates are fixedly connected on both sides of the annular main body, each of the wear-resistant plates is provided with a rubber sealing layer and the rubber sealing layer is in contact with the annular main body, each of the wear-resistant plates and the rubber sealing layer is provided with an avoidance hole at a position corresponding to the material hole, and the avoidance hole and the material hole are on the same axis. The distributor and the two wear-resistant plates are fixedly connected together, the rubber sealing layer plays a sealing role, and the material can generally only be transported through the avoidance hole and the material hole. The rubber sealing layer prevents the material from leaking from between the distributor and the wear-resistant plate.

[0005] Furthermore, the material distributor includes a weight-reducing structure extending through the center of the annular body, with multiple material holes arranged in a ring around the weight-reducing structure. The weight-reducing structure includes an axial hole extending through the center of the annular body and multiple weight-reducing holes arranged in a ring around the axial hole. The weight-reducing holes are designed to reduce the overall weight of the sealing structure, allowing for more material to be transported during rotation.

[0006] Furthermore, the tops of the shaft hole and the plurality of weight-reducing holes are flush with the top of the annular body, and a gap is provided between the bottoms of the shaft hole and the plurality of weight-reducing holes and the bottom of the annular body. The purpose of designing the gap is to further reduce the overall weight of the sealing structure.

[0007] Furthermore, the annular body is evenly provided with a plurality of first through-holes, and each of the wear-resistant plates and the rubber sealing layer is provided with a second through-hole at a position corresponding to the first through-hole. The first through-hole, the second through-hole on the wear-resistant plate, and the second through-hole on the rubber sealing layer are fixedly connected by a pin. After the first through-hole and the two second through-holes are fixedly connected by the pin, the distributor and the two wear-resistant plates are fixedly connected together, and the rubber sealing layer performs a sealing function, preventing material from leaking between the distributor and the wear-resistant plates.

[0008] Furthermore, the annular body has an I-shaped structure, and the outer diameters of the two ends of the annular body are larger than the outer diameter of the middle part of the annular body.

[0009] Furthermore, both ends of each material hole are flush with both ends of the annular body, and the material holes are easy to cooperate with external components to realize material transportation.

[0010] Furthermore, each of the material holes and the avoidance holes is a fan-shaped structure. When the material holes and the avoidance holes are designed as fan-shaped structures, the material passes through the material holes and the avoidance holes more quickly and with a larger throughput.

[0011] Compared with the prior art, the present invention has the following technical effects:

[0012] This utility model discloses a sealing structure for a tunnel support shotcrete machine. A feeder and two wear-resistant plates are fixedly connected together, and a rubber sealing layer provides a seal. The rubber sealing layer, wear-resistant plates, and feeder are easily removable, eliminating the labor required to replace the rubber chamber of a conventional feeder. Material is typically conveyed only through the avoidance holes and material holes. The rubber sealing layer prevents leakage between the feeder and wear-resistant plates, providing a superior sealing effect. Both the rubber sealing layer and wear-resistant plates are consumable parts and can be replaced after extended use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the explosion structure of a sealing structure of a tunnel support shotcrete machine of the utility model;

[0014] Figure 2 This is a structural schematic diagram of a sealing structure of a tunnel support shotcrete machine according to the present invention;

[0015] Figure 3 It is a structural diagram of the material distributor of the utility model;

[0016] The reference numerals in the accompanying drawings are:

[0017] 1. Material distributor; 11. Ring-shaped body; 12. Material hole; 13. Axis hole; 14. Weight reduction hole; 15. First through hole; 2. Wear-resistant plate; 21. Rubber sealing layer; 3. Avoidance hole; 4. Second through hole; 5. Pin. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1 to 3 As shown, a sealing structure of a shotcrete machine for tunnel support includes a distributor 1 and two wear-resistant plates 2, wherein the distributor 1 includes an annular main body 11 and a plurality of material holes 12 that are arranged through the annular main body 11 and in an annular shape, and the two wear-resistant plates 2 are fixedly connected to both sides of the annular main body 11, and each of the wear-resistant plates 2 is provided with a rubber sealing layer 21 and the rubber sealing layer 21 is in contact with the annular main body 11. The rubber sealing layer 21 of this embodiment can be fixed to the wear-resistant plate 2 by vulcanization, and each of the wear-resistant plates 2 and the rubber sealing layer 21 is provided with an avoidance hole 3 at a position corresponding to the material hole 12, and the avoidance hole 3 and the material hole 12 are on the same axis.

[0020] In this embodiment, the distributor 1 and two wear-resistant plates 2 are fixedly connected together, with the rubber sealing layer 21 providing a seal. Material can generally only be transported through the avoidance hole 3 and the material hole 12. The rubber sealing layer 21 prevents material from leaking between the distributor 1 and the wear-resistant plates 2. Both the rubber sealing layer 21 and the wear-resistant plates 2 are consumable parts and can be replaced after extended use. The rubber sealing layer 21 and the wear-resistant plates 2 of this embodiment are easily removable from the distributor 1, eliminating the workload of replacing the rubber material chamber in conventional distributors. Furthermore, the rubber sealing layer 21 provides a superior sealing effect.

[0021] The sealing structure of this embodiment replaces the traditional sealing method of the wear-resistant plate and the distributor. The distributor 1 and the two wear-resistant plates 2 are fixedly connected together. The rubber sealing layer 21 and the wear-resistant plates 2 are easy to disassemble from the distributor 1. The rubber sealing layer 21 plays a sealing role and has a good sealing effect.

[0022] As an implementable embodiment, the distributor 1 also includes a weight-reducing structure provided through the center of the annular body 11, and the plurality of material holes 12 are provided in a ring shape with the weight-reducing structure as the center; the weight-reducing structure includes an axial hole 13 provided through the center of the annular body 11 and a plurality of weight-reducing holes 14, and the plurality of weight-reducing holes 14 are provided in a ring shape with the axial hole 13 as the center. When the sealing structure is working, the axial hole 13 is to be connected to the output shaft of the external motor, and the external motor is started to drive the sealing structure to rotate as a whole. The purpose of designing the weight-reducing holes 14 is to reduce the overall weight of the sealing structure, so that when the sealing structure rotates, it can transport more materials with higher efficiency.

[0023] As an embodiment, the tops of the shaft hole 13 and the plurality of weight-reducing holes 14 are flush with the top of the annular body 11, and a gap is provided between the bottoms of the shaft hole 13 and the plurality of weight-reducing holes 14 and the bottom of the annular body 11. The purpose of designing the gap is to further reduce the overall weight of the sealing structure.

[0024] As an embodiment, a plurality of first through holes 15 are evenly arranged on the annular body 11, and a second through hole 4 is provided at a position corresponding to the first through hole 15 on each of the wear-resistant plate 2 and the rubber sealing layer 21. The first through hole 15, the second through hole 4 on the wear-resistant plate 2, and the second through hole 4 on the rubber sealing layer 21 are fixedly connected by a pin 5. After the first through hole 15 and the two second through holes 4 are fixedly connected by the pin 5, the distributor 1 and the two wear-resistant plates 2 are fixedly connected together. The rubber sealing layer 21 and the wear-resistant plate 2 of this embodiment are easy to disassemble from the distributor 1. In addition, the rubber sealing layer 21 plays a sealing role, and the rubber sealing layer 21 prevents material from leaking from between the distributor 1 and the wear-resistant plate 2.

[0025] As an implementation method, the annular body 11 has an I-shaped structure, and the outer diameters of the two ends of the annular body 11 are larger than the outer diameter of the middle part of the annular body 11. The annular body 11 of this embodiment is designed as an I-shaped structure according to the requirements, and the annular body 11 is easy to cooperate with external components to realize material conveying.

[0026] As an embodiment, both ends of each material hole 12 are flush with both ends of the annular body 11. In this embodiment, both ends of the material hole 12 are flush with both ends of the annular body 11, and the material hole 12 is easy to cooperate with external components (such as components for conveying materials) to convey materials.

[0027] As an embodiment, each of the material holes 12 and the avoidance holes 3 is a fan-shaped structure. When the material holes 12 and the avoidance holes 3 are designed as fan-shaped structures, the material passes through the material holes 12 and the avoidance holes 3 more quickly and with a larger throughput.

[0028] The embodiments described above are merely preferred embodiments of the present invention and are intended only to explain the present invention, not to limit the scope of implementation of the present invention. Those skilled in the art can, of course, easily make other implementations by replacing or modifying the technical contents disclosed in this specification. Therefore, any changes and improvements made to the principles and process conditions of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. A sealing structure for a tunnel support shotcrete machine, comprising a distributor (1) and two wear-resistant plates (2), characterized in that: The distributor (1) comprises an annular main body (11) and a plurality of material holes (12) penetrating the annular main body (11) and arranged in an annular shape. Two wear-resistant plates (2) are fixedly connected to both sides of the annular main body (11). Each wear-resistant plate (2) is provided with a rubber sealing layer (21), and the rubber sealing layer (21) is in contact with the annular main body (11). Each wear-resistant plate (2) and the rubber sealing layer (21) are provided with avoidance holes (3) at positions corresponding to the material holes (12). The avoidance holes (3) and the material holes (12) are located on the same axis.

2. The sealing structure of the tunnel support shotcrete machine according to claim 1, characterized in that: The distributor (1) further comprises a weight-reducing structure provided through the center of the annular main body (11), and the plurality of material holes (12) are provided in an annular shape with the weight-reducing structure as the center; the weight-reducing structure comprises an axial hole (13) provided through the center of the annular main body (11) and a plurality of weight-reducing holes (14), and the plurality of weight-reducing holes (14) are provided in an annular shape with the axial hole (13) as the center.

3. The sealing structure of the tunnel support shotcrete machine according to claim 2, characterized in that: The tops of the shaft hole (13) and the plurality of weight-reducing holes (14) are flush with the top of the annular body (11), and a gap is provided between the bottoms of the shaft hole (13) and the plurality of weight-reducing holes (14) and the bottom of the annular body (11).

4. The sealing structure of the tunnel support shotcrete machine according to claim 1, characterized in that: A plurality of first through holes (15) are evenly arranged on the annular main body (11), and a second through hole (4) is arranged at a position corresponding to the first through hole (15) on each of the wear-resistant plate (2) and the rubber sealing layer (21), and the first through hole (15), the second through hole (4) on the wear-resistant plate (2), and the second through hole (4) on the rubber sealing layer (21) are fixedly connected by a pin (5).

5. The sealing structure of the tunnel support shotcrete machine according to claim 1, characterized in that: The annular body (11) has an I-shaped structure, and the outer diameters of the two ends of the annular body (11) are larger than the outer diameter of the middle part of the annular body (11).

6. The sealing structure of the tunnel support shotcrete machine according to claim 1, characterized in that: Both ends of each material hole (12) are flush with both ends of the annular body (11).

7. The sealing structure of the tunnel support shotcrete machine according to claim 1, characterized in that: Each of the material holes (12) and the avoidance holes (3) is a fan-shaped structure.

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