Lifting device in underground excavation vertical shaft

Abstract

The utility model discloses a lifting device in an underground excavation vertical shaft, which relates to the technical field of constructional engineering, and comprises a lifting hopper, a steel wire rope, a lifting frame, a frame gear and a fixed support, the two opposite side ends of the lifting frame are vertically and downwards fixed with connecting frames, and the middle part of the lifting hopper is rotatably arranged between the two connecting frames through a limiting rotating shaft; the gear is coaxially and fixedly connected to the limiting rotating shaft in a sleeving mode, a rack is vertically fixed to the top end of one side of the fixing support, and a limiting long groove is vertically formed in the position, close to the rack, of the fixing support. The rack, the gear, the limiting rotating shaft, the limiting long groove and the fixing support are arranged in a matched mode, when the gear on the lifting hopper makes contact with the rack, the gear drives the whole lifting hopper to rotate around the limiting rotating shaft under the limiting effect between the limiting rotating shaft and the limiting long groove, and the lifting hopper continues to be lifted upwards along with the steel wire rope; when the lifting hopper is turned over by 180 degrees, silt in the lifting hopper can be better poured out, the whole structure is simple, and operation is convenient and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, especially relates to a hoisting device in a subsurface vertical shaft. BACKGROUND

[0002] Before the excavation of a subway tunnel, a subsurface vertical shaft is generally set up at a selected location along the planned route. The subsurface vertical shaft is a vertical pit for shield machines to work in. The shield machines enter the subsurface vertical shaft, excavate along the planned route, and ultimately realize the connection of the subway tunnel.

[0003] At the present stage, the unloading of materials in the vertical shaft is mainly through the cooperation of loading and unloading barrels and steel wires to hoist and lift the materials. After the materials are lifted to the ground, the materials in the loading and unloading barrels are poured out. However, since the materials are mostly sand or clay with certain viscosity, the materials are easily adhered to the inner wall of the loading and unloading barrels, which requires manual cleaning. This way has low construction efficiency.

[0004] To improve the above problems, through retrieval, the patent with the publication number CN117703497A provides a material hoisting device for subsurface vertical shaft. By setting an automatically opened and closed switch plate, the rapid unloading of materials is realized, so that the unloading hopper can be quickly put into use next time. At the same time, during the opening process of the switch plate, the cleaning ring is used to realize the automatic cleaning of the inner wall of the unloading hopper, preventing the adhesion of materials to the inner wall of the unloading hopper, without the need for manual cleaning, avoiding the waste of unloading materials in the transportation time, and improving the construction efficiency.

[0005] Based on the above retrieval, combined with the existing technology, it is found that although the material hoisting device for subsurface vertical shaft similar to the above disclosed in the prior art can help to discharge viscous materials, the unloading structure of the unloading hopper is complex, and needs to be connected with a hydraulic cylinder, a hydraulic pump, and an electric wire for power supply, which is inconvenient for actual use. Therefore, a hoisting device in a subsurface vertical shaft is proposed to improve the above problems. UTILITY MODEL CONTENTS

[0006] The purpose of the present application is to provide a hoisting device in a subsurface vertical shaft to solve the problems raised in the background art.

[0007] To achieve the above purpose, the present application provides the following technical solution: a hoisting device in a subsurface vertical shaft, comprising a material lifting hopper and a steel wire for lifting the material lifting hopper, further comprising:

[0008] a lifting frame, a lifting lug for fixing the steel wire is installed at the upper end of the lifting frame, and a connecting frame is fixed vertically downward at the opposite two sides of the lifting frame, and the middle part of the material lifting hopper is rotatably installed between the two connecting frames through a limiting rotating shaft;

[0009] a gear, the gear is coaxially fixed on the limiting rotating shaft;

[0010] The fixed support is vertically fixed with a rack meshing with a gear at one side top end, and a limiting long slot limiting the limiting rotating shaft is vertically arranged at the position close to the rack of the fixed support.

[0011] As a further supplement to the scheme, the opposite two side ends of the lifting frame close to the connecting frame are fixed with auxiliary guide shafts vertically slidingly matched with the limiting long slot.

[0012] As a further supplement to the scheme, the lower end of the limiting long slot is provided with two guide inclined plates in an eight-shaped distribution, and the guide inclined plates are fixed to the lower end of the fixed support.

[0013] As a further supplement to the scheme, the bottom end of the lifting hopper is provided with moving wheels.

[0014] As a further supplement to the scheme, the inner side of the lifting hopper is vertically slidingly and closely provided with a counterweight, and the upper end inner side of the lifting hopper is fixed with a limiting frame.

[0015] As a further supplement to the scheme, the inner bottom end of the lifting hopper is fixed with a compression spring.

[0016] As a further supplement to the scheme, the upper end of the counterweight is integrally provided with a chamfered frame.

[0017] In summary, the technical effects and advantages of the utility model are as follows:

[0018] 1. In the utility model, through the cooperation of the rack, the gear, the limiting rotating shaft, the limiting long slot and the fixed support, when the gear on the lifting hopper contacts the rack in the process of lifting the lifting hopper upward by the external lifting equipment and the steel wire rope, the gear rotates with the whole lifting hopper around the limiting rotating shaft under the limiting action between the limiting rotating shaft and the limiting long slot, the lifting hopper is turned by one hundred and eighty degrees along with the continuous upward pulling of the steel wire rope, the mud and sand in the lifting hopper can be better poured out at this time, the whole structure is simple, and the operation is convenient and reliable.

[0019] 2. In the utility model, the counterweight is vertically slidingly and closely arranged at the inner side of the lifting hopper, after the lifting hopper is turned by one hundred and eighty degrees, the counterweight slides downward under the action of its own gravity, pushes the mud and sand adhered to the inner wall of the lifting hopper downward, and the violent vibration formed when the counterweight impacts the limiting frame can shake off the mud and sand adhered to the surface of the counterweight, so that the unloading is more complete. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0021] Figure 1 It is the perspective structure schematic view of the material lifting hopper in the embodiment;

[0022] Figure 2 It is the perspective structure schematic view of the fixed support in the embodiment;

[0023] Figure 3 It is the plane structure schematic view of the gear not contacting with the rack in the embodiment;

[0024] Figure 4 It is the plane structure schematic view of the gear contacting with the rack in the embodiment;

[0025] Figure 5 It is the plane structure schematic view of the material lifting hopper turning one hundred and eighty degrees in the embodiment.

[0026] In the figure: 1, the material lifting hopper; 2, the lifting frame; 21, the lifting lug; 3, the connecting frame; 4, the gear; 5, the limiting rotating shaft; 6, the fixed support; 61, the rack; 601, the limiting long slot; 62, the guide inclined plate; 7, the auxiliary guide shaft; 8, the moving wheel; 9, the counterweight; 10, the limiting frame; 11, the chamfered frame; 12, the steel wire rope; 13, the compression spring. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] Embodiment: refer to Figures 1-5 The utility model discloses a kind of hoisting devices in cut-and-cover shaft, including material lifting hopper 1 and the steel wire rope 12 for lifting material lifting hopper 1, further including lifting frame 2, gear 4 and fixed support 6, wherein, fixed support 6 is fixed on ground or other fixed objects on ground.

[0029] Among them, the upper end of lifting frame 2 is provided with lifting lug 21 for fixing steel wire rope 12, the opposite two sides of lifting frame 2 are vertically downwards fixed with connecting frame 3, the middle part of material lifting hopper 1 is rotatably installed between two connecting frames 3 by limiting rotating shaft 5, gear 4 is coaxially fixed on limiting rotating shaft 5, the top of one side of fixed support 6 is vertically fixed with rack 61 engaged with gear 4, and the position close to rack 61 of fixed support 6 is vertically provided with limiting long slot 601 for limiting limiting rotating shaft 5.

[0030] Based on the above rack 61, gear 4, limiting shaft 5, limiting long slot 601 and fixed bracket 6 cooperation setting, in the process of lifting the lifting hopper 1 upwards by using external lifting equipment cooperation with steel wire rope 12, when the gear 4 on the lifting hopper 1 contacts the rack 61, under the limiting action between the limiting shaft 5 and the limiting long slot 601, the gear 4 rotates around the limiting shaft 5 with the whole lifting hopper 1, as the steel wire rope 12 continues to pull the lifting hopper 1 upwards, the lifting hopper 1 turns one hundred and eighty degrees, at this time, the sand in the lifting hopper 1 can be better poured out, the whole structure is simple, convenient and reliable to operate.

[0031] Wherein, the lifting frame 2 is fixed with auxiliary guide shaft 7 which is vertically slidingly matched with the limiting long slot 601 on the opposite sides of the connecting frame 3, so that the auxiliary guide shaft 7 can make the lifting frame 2 with the lifting hopper 1 smoothly enter between the two connecting frames 3.

[0032] Wherein, the lower end of the limiting long slot 601 is provided with two guide inclined plates 62 which are distributed in an eight-shaped manner, and the guide inclined plates 62 are fixed to the lower end of the fixed bracket 6, so that the limiting shaft 5 and the auxiliary guide shaft 7 can smoothly enter the limiting long slot 601 and slide upwards along the limiting long slot 601.

[0033] In order to facilitate the movement of the lifting hopper 1 when loading and unloading the sand, the bottom end of the lifting hopper 1 is provided with a movable wheel 8.

[0034] Considering that the sand with certain viscosity will adhere to the inner wall of the lifting hopper 1 and be difficult to unload, a counterweight 9 is vertically slidingly arranged on the inner side of the lifting hopper 1, and a limiting frame 10 is fixed to the upper end inner side of the lifting hopper 1, so that after the lifting hopper 1 turns one hundred and eighty degrees, the counterweight 9 slides downwards under the action of its own gravity, pushes the sand adhered to the inner wall of the lifting hopper 1 downwards, and the violent vibration formed when the counterweight 9 hits the limiting frame 10 can shake off the sand adhered to the surface of the counterweight 9, so that the unloading is more complete, and the limiting frame 10 can prevent the counterweight 9 from separating from the lifting hopper 1.

[0035] In order to slow down the violent impact on the bottom of the lifting hopper 1 when the counterweight 9 resets, a compression spring 13 is fixed to the inner bottom end of the lifting hopper 1, which can play a buffering role.

[0036] In order to avoid that part of the sand is clamped between the counterweight 9 and the limiting frame 10, a chamfered frame 11 is integrally arranged on the upper end of the counterweight 9.

[0037] The working principle of the utility model is as follows: Figure 3 As shown in the figure, in the process of lifting the lifting hopper 1 upwards by using external lifting equipment cooperation with steel wire rope 12, when the gear 4 on the lifting hopper 1 contacts the rack 61, as Figure 4It is shown that the gear 4 rotates with the whole lifting hopper 1 around the limiting pivot 5 under the limiting action between the limiting pivot 5 and the limiting long slot 601, and with the steel wire rope 12 continuing to pull up the lifting hopper 1, the lifting hopper 1 is pulled up to the position shown in Fig. 6. Figure 5 It is shown that the lifting hopper 1 is turned over by one hundred and eighty degrees, and the dumping of the sand inside the lifting hopper 1 is completed.

[0038] After the lifting hopper 1 is turned over by one hundred and eighty degrees, the counterweight 9 slides down under the action of its own gravity, pushes the sand adhered to the inner wall of the lifting hopper 1 downwards, and the violent vibration formed when the counterweight 9 hits the limiting frame 10 can shake off the sand adhered to the surface of the counterweight 9.

[0039] Finally, it should be noted that the above description is only the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hoisting device in a shaft excavated underground, comprising a material bucket (1) and a steel wire rope (12) for hoisting the material bucket (1), characterized in that, Also include: The upper end of the lifting frame (2) is provided with an eye (21) for fixing the steel wire rope (12), and the opposite two side ends of the lifting frame (2) are vertically downwardly fixed with connecting frames (3), and the middle part of the lifting hopper (1) is rotatably installed between the two connecting frames (3) through a limiting rotating shaft (5); The gear (4) is coaxially fixed on the limiting rotating shaft (5); The side top end of the fixed support (6) is vertically fixed with a rack (61) engaged with the gear (4), and the position close to the rack (61) of the fixed support (6) is vertically provided with a limiting long slot (601) limiting the limiting rotating shaft (5).

2. A raising device in a vertical shaft according to claim 1, characterized in that: The opposite two side ends of the lifting frame (2) close to the connecting frames (3) are fixed with auxiliary guide shafts (7) vertically slidingly matched with the limiting long slot (601).

3. A raising device in a vertical shaft according to claim 2, characterized in that: The lower end of the limiting long slot (601) is provided with two guide inclined plates (62) in an eight-shaped distribution, and the guide inclined plates (62) are fixed to the lower end of the fixed support (6).

4. A raising device in a vertical shaft according to claim 1, characterized in that: The bottom end of the lifting hopper (1) is provided with a moving wheel (8).

5. A raising device in a vertical shaft according to claim 1, characterized in that: The inner side of the lifting hopper (1) is vertically slidingly and closely provided with a counterweight (9), and the upper end inner side of the lifting hopper (1) is fixed with a limiting frame (10).

6. A raising device in a vertical shaft according to claim 5, characterized in that: The inner bottom end of the lifting hopper (1) is fixed with a compression spring (13).

7. A raising device in a vertical shaft according to claim 5, characterized in that: The upper end of the counterweight (9) is integrally provided with a chamfered frame (11).

Images