Safe and rapid locking maintenance door of spiral conveyor for shield tunneling machine

Abstract

The utility model belongs to the technical field of shield tunneling machines, and particularly relates to a safe and quick locking maintenance door of a spiral conveyor for a shield tunneling machine, which comprises a maintenance bin welded on a shell of the spiral conveyor, a bin door is detachably mounted at a maintenance opening of the maintenance bin, and a convex edge is welded at one end of the maintenance bin close to the bin door; a row of locking assemblies are fixed to the end, close to the bin door, of each of the four faces of the maintenance bin, and the clamping ends of the locking assemblies are clamped to the bin door. According to the safe and rapid locking maintenance door of the spiral conveyor for the shield tunneling machine, a traditional bolt fixing mode is changed, a locking assembly can be driven to work only by enabling a positioning rod to penetrate through the interior of a positioning hole, the bin door is clamped on a maintenance bin through a clamping block, and a fixing bolt is in threaded connection with a threaded hole and penetrates through the interior of a fixing through hole at the same time; and the jacking state of the jacking block by the positioning rod can be kept, so that the bin door is clamped and fixed by the clamping block, the bin door is conveniently and quickly assembled and disassembled, the working intensity is reduced, and the working efficiency is also effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shield machine technical field especially relates to a shield machine is with spiral conveyor safe and fast locking maintenance door. BACKGROUND

[0002] In tunneling engineering and underground engineering construction, shield machine as a kind of efficient, advanced construction equipment, plays a vital role. Among them, spiral conveyor as an important part of shield machine, is responsible for the material (such as soil, rock fragments etc.) from the front end of shield machine to the rear end for processing or discharge, its running efficiency and stability are directly related to the working efficiency and safety of the entire shield machine.

[0003] Spiral conveyor in the working process, due to its internal bearing from the huge pressure of the digging surface, and the friction and impact force generated in the process of material conveying, therefore, it has extremely high requirements on its structural strength and sealing performance, in order to ensure that the pressure inside the spiral conveyor does not leak, while preventing material leakage, the design of maintenance door is particularly important. Traditionally, maintenance door is fastened on the shell of spiral conveyor by a large number of bolts.

[0004] Due to the large number of bolts on the maintenance door, workers need to assemble and disassemble all the bolts one by one when carrying out routine maintenance, inspection or fault repair, which not only consumes a lot of time and energy, increases the labor intensity of workers, but also reduces the maintenance efficiency of equipment. Especially in emergency, when the maintenance door needs to be opened quickly for repair, the cumbersome bolt assembly and disassembly process may become a bottleneck of the repair speed, and further affect the construction progress and safety of the entire project. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research, and after a lot of creative labor, the utility model is completed.

[0006] Specifically, the technical problem to be solved by the utility model is to provide a shield machine spiral conveyor safe and fast locking maintenance door to solve the technical problem that the number of bolts on the maintenance door is large, workers consume a lot of time and energy, increase the labor intensity of workers, and reduce the maintenance efficiency of equipment.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A shield machine spiral conveyor safe and fast locking maintenance door, comprising a maintenance bin welded on the shell of the spiral conveyor, a bin door is detachably installed at the maintenance opening of the maintenance bin, and a convex edge is welded at one end of the maintenance bin close to the bin door.

[0009] The four sides of the maintenance bin are fixed with a row of locking assemblies near one end of the bin door, and the clamping end of the locking assembly is clamped on the bin door;

[0010] A group of positioning rods are welded on the four sides of the end of the bin door near the maintenance bin, and a positioning hole for the positioning rod to pass through is formed in the corresponding position of each positioning rod on the convex edge, a fixing hole is formed in the positioning rod, and a threaded hole in communication with the positioning hole is formed in the four sides of the convex edge, and the convex edge is screw-mounted with a fixing bolt passing through the inside of the fixing hole.

[0011] As an improved technical solution, the locking assembly comprises two shaft blocks welded on the maintenance bin, a mounting shaft is rotatably mounted between the two shaft blocks, a rotating block is sleeved on the middle part of the mounting shaft, and a clamping block for clamping the bin door is welded on one side of the top of the rotating block.

[0012] As an improved technical solution, recesses corresponding to the clamping blocks are formed in the four sides of the end of the bin door away from the maintenance bin, and rubber gaskets are mounted in the recesses.

[0013] As an improved technical solution, gears are sleeved on both sides of the mounting shaft and located on both sides of the rotating block, racks are engagedly mounted on the two gears, and a jacking block is fixed between the top ends of the two racks.

[0014] As an improved technical solution, the locking assembly further comprises two fixed strips fixed on the maintenance bin, guide rods are fixed between the opposite sides of the two fixed strips, a linkage strip is fixedly connected between the bottom ends of the two racks, and slide holes through which the guide rods pass are formed in both ends of the linkage strip.

[0015] As an improved technical solution, springs are sleeved on the guide rods and located between the linkage strip and the lower fixed strip.

[0016] As an improved technical solution, one of the fixing bolts corresponds to the fixing hole in one positioning rod, and four fixing bolts are used to fix the four positioning rods.

[0017] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0018] 1. The present application changes the traditional bolt fixing method. After the positioning rod passes through the inside of the positioning hole, the locking assembly can be driven to work, the bin door can be clamped on the maintenance bin through the clamping block, the inside of the fixing hole can be passed through the threaded connection of the fixing bolt and the threaded hole at the same time, the jacking state of the positioning rod to the jacking block can be maintained, the clamping and fixing of the clamping block to the bin door can be maintained, the bin door can be quickly assembled and disassembled, the working strength is reduced, and the working efficiency is effectively improved.

[0019] 2、The utility model discloses, the positioning rod passes through the inside of the positioning hole, and the positioning rod is connected with the fixed perforation corresponding, and the maintenance bin is guaranteed with the bin door to guarantee the overall property and the sealing property of the bin door to the maintenance bin cover, and four groups of locking assemblies are buckled on the maintenance bin, guaranteeing the overall property and the evenness of the bin door buckling. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment description needed to use the drawing briefly introduce, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0021] Figure 1 It is the whole structure diagram of the utility model safe and quick locking maintenance door of screw conveyor for shield machine.

[0022] Figure 2 It is the structure diagram of the bin door of the utility model safe and quick locking maintenance door of screw conveyor for shield machine.

[0023] Figure 3 It is the structure diagram of the maintenance bin of the utility model safe and quick locking maintenance door of screw conveyor for shield machine.

[0024] Figure 4 It is the structure diagram of the locking assembly of the utility model safe and quick locking maintenance door of screw conveyor for shield machine.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, maintenance bin;11, convex edge;12, positioning hole;13, threaded hole;2, bin door;21, recess;22, positioning rod;23, fixed perforation;3, locking assembly;31, shaft block;32, mounting shaft;33, rack;34, linkage strip;35, fixed strip;36, spring;37, guide rod;38, rotating block;39, jacking block;310, clamping block;311, gear;4, fixed bolt. DETAILED DESCRIPTION

[0027] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0029] Meanwhile, "and / or" or "and / or" appearing throughout the text means including three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme.

[0030] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0031] As Figures 1 to 4 The embodiment provides a spiral conveyor safety quick locking maintenance door for a shield tunneling machine, and the spiral conveyor safety quick locking maintenance door for the shield tunneling machine comprises a maintenance bin 1 welded on a spiral conveyor shell, a bin door 2 is detachably installed at a maintenance opening of the maintenance bin 1, and a convex edge 11 is welded at one end of the maintenance bin 1 close to the bin door 2.

[0032] One row of locking assemblies 3 is fixed at one end of the maintenance bin 1 close to the bin door 2, and the clamping end of the locking assembly 3 is clamped on the bin door 2.

[0033] A group of positioning rods 22 are welded at four edges of one end of the bin door 2 close to the maintenance bin 1, positioning holes 12 are formed in the convex edge 11 for the positioning rods 22 to pass through, the positioning rods 22 are clamped and positioned in correspondence with the fixed through holes 23, the positioning rods 22 and the fixed through holes 23 ensure that the bin door 2 is fully and sealingly covered on the maintenance bin 1, the fixed through holes 23 are formed in the positioning rods 22, screw holes 13 are formed in the four edges of the convex edge 11 and are in communication with the positioning holes 12, the fixed through holes 23 are internally threaded and are screwed with fixed bolts 4, and the threaded rod end of the fixed bolts 4 is smaller than the length of the convex edge 11.

[0034] As Figure 4As shown in the drawings, in this embodiment, the locking assembly 3 comprises two shaft blocks 31 welded on the maintenance bin 1, a mounting shaft 32 is rotatably mounted between the two shaft blocks 31, the middle part of the mounting shaft 32 is sleeved with a rotating block 38, and the top of one side of the rotating block 38 is welded with a clamping block 310 clamped with the bin door 2.

[0035] As shown in the drawings, Figures 1 to 2 As shown in the drawings, in this embodiment, the four edges of the bin door 2 away from the end face of the maintenance bin 1 are provided with grooves 21 corresponding to the clamping block 310, and rubber pads are mounted in the grooves 21.

[0036] As shown in the drawings, Figure 4 As shown in the drawings, in this embodiment, the mounting shaft 32 and the two sides of the rotating block 38 are sleeved with a gear 311, the two gears 311 are meshingly mounted with a rack 33, the top ends of the two racks 33 are fixedly connected with a jacking block 39, and the bottom end of the positioning rod 22 is in contact with the top of the jacking block 39.

[0037] As shown in the drawings, Figure 4 As shown in the drawings, in this embodiment, the locking assembly 3 further comprises two fixed strips 35 fixed on the maintenance bin 1, two guide rods 37 are fixedly connected between the opposite sides of the two fixed strips 35, the bottom ends of the two racks 33 are fixedly connected with a linkage strip 34, and the two ends of the linkage strip 34 are provided with sliding holes through which the guide rods 37 pass.

[0038] As shown in the drawings, Figure 4 As shown in the drawings, in this embodiment, the guide rod 37 and the linkage strip 34 and the lower fixed strip 35 are sleeved with a spring 36.

[0039] As shown in the drawings, Figures 1 to 3 As shown in the drawings, in this embodiment, one fixed bolt 4 passes through the fixed hole 23 on one side of the positioning rod 22, four fixed bolts 4 are used to fix the four positioning rods 22, and four groups of locking assemblies 3 are used to buckle the bin door 2 on the maintenance bin 1, so as to ensure the comprehensiveness and uniformity of the buckling of the bin door 2.

[0040] The traditional bolt fixing method is changed, and only after the positioning rod 22 passes through the inside of the positioning hole 12, the locking assembly 3 can be driven to work, the bin door 2 is clamped on the maintenance bin 1 through the clamping block 310, and the fixed bolt 4 is screwed with the threaded hole 13 and passes through the inside of the fixed hole 23 at the same time, so as to maintain the jacking state of the positioning rod 22 to the jacking block 39, and then maintain the clamping and fixing of the clamping block 310 to the bin door 2, which is convenient for quickly assembling and disassembling the bin door 2, reduces the working strength, and effectively improves the working efficiency.

[0041] In use, when the bin door 2 is not installed on the maintenance bin 1, under the elastic action of the spring 36, the clamping block 310 is in a horizontal placement state, and the process of installing the bin door 2 on the maintenance bin 1 is as follows:

[0042] After the positioning rod 22 passes through the inside of the positioning hole 12, the bottom end of the positioning rod 22 will be in contact with the top of the jacking block 39, and as the door 2 is fitted towards the maintenance cabin 1, the positioning rod 22 will exert pressure on the jacking block 39 to move in the direction of the fixing strip 35, prompting the jacking block 39 to move the rack 33 in the direction of the spring 36, and the linkage strip 34 will compress the spring 36, and under the meshing transmission of the rack 33 and the gear 311, the mounting shaft 32 will rotate clockwise, and through the rotating block 38, the clamping block 310 will rotate towards the door 2, and the clamping end of the clamping block 310 will be clamped into the inside of the groove 21, thereby clamping the door 2 on the convex edge 11, and then the four fixing bolts 4 will be screwed into the inside of the four threaded holes 13, and the fixing bolt 4 will pass through the inside of the fixed perforation 23 on all the positioning rods 22 on the same side, thereby fixing the door 2 on the maintenance cabin 1;

[0043] When the door 2 needs to be disassembled, the fixing bolt 4 will be unscrewed from the inside of the threaded hole 13, and under the elastic reset action of the spring 36, the rack 33 will be jacked upwards, thereby driving the clamping block 310 to rotate away from the door 2, and the clamping block 310 will be disengaged from the clamping and fixing of the door 2

[0044] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the scope of protection of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A safe and quick locking maintenance door for a screw conveyor used in a tunnel boring machine, characterized in that: The utility model provides a kind of maintenance bin (1) including welding on the spiral conveyor shell, the maintenance bin (1) is detachably installed with bin door (2) at maintenance opening, the maintenance bin (1) is welded with flange (11) on one end close to bin door (2); The maintenance bin (1) is fixed with a row of locking assemblies (3) on one end close to bin door (2), and the locking assemblies (3) are clamped on the bin door (2); The bin door (2) is welded with a group of positioning rods (22) on the four edges of one end close to the maintenance bin (1), and the flange (11) is provided with a positioning hole (12) corresponding to each positioning rod (22) at the position where the positioning rod (22) passes through, the positioning rod (22) is provided with a fixed perforation (23), and the flange (11) is provided with a threaded hole (13) in communication with the positioning hole (12) on the four edges, and the flange (11) is provided with a fixed bolt (4) passing through the fixed perforation (23) by screwing the threaded hole (13).

2. The safety and quick locking maintenance door for the screw conveyor of the shield tunneling machine according to claim 1, characterized in that: The locking assembly (3) includes two shaft blocks (31) welded on the maintenance bin (1), and the two shaft blocks (31) are rotatably installed with a mounting shaft (32), the mounting shaft (32) is sleeved with a rotating block (38), and the rotating block (38) is welded with a clamping block (310) on one side of the top for clamping the bin door (2).

3. The safety and quick locking maintenance door of the screw conveyor of the tunneling machine according to claim 2, characterized in that: The bin door (2) is provided with a groove (21) corresponding to the clamping block (310) on the four edges of the end face away from the maintenance bin (1), and the groove (21) is provided with a rubber gasket.

4. The safety and quick locking maintenance door of the screw conveyor of the tunneling machine according to claim 3, characterized in that: The mounting shaft (32) is sleeved with a gear (311) on both sides of the rotating block (38), and the two gears (311) are rotatably installed with a rack (33), and the top ends of the two racks (33) are fixedly connected with a jacking block (39).

5. The safety and quick locking maintenance door of the screw conveyor of the tunneling machine according to claim 4, characterized in that: The locking assembly (3) further includes two fixed strips (35) fixed on the maintenance bin (1), and the two fixed strips (35) are fixedly connected with a linkage strip (34) between the two racks (33), and the linkage strip (34) is provided with a sliding hole (37) through which the guiding rod (37) passes.

6. The safety and quick locking maintenance door of the screw conveyor of the tunneling machine according to claim 5, characterized in that: The guiding rod (37) is sleeved with a spring (36) between the linkage strip (34) and the lower fixed strip (35).

7. The safety and quick locking maintenance door of the screw conveyor of the tunneling machine according to claim 6, characterized in that: One of the fixed bolts (4) corresponds to the fixed perforation (23) on one side of the positioning rod (22), and the four fixed bolts (4) correspond to the four positioning rods (22) for fixation.

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