Limiting anti-collision device of dry quenching elevator

Abstract

The utility model discloses a limiting anti-collision device of a dry quenching elevator. The limiting anti-collision device comprises a U-shaped electromagnetic proximity inductive switch, a proximity switch inductive iron plate, an anti-collision frame and a mounting structure, a channel allowing the proximity switch induction iron plate to pass through is formed in the middle of the anti-collision frame, and a mounting groove used for mounting the U-shaped electromagnetic proximity induction switch is formed in the channel. Trumpet-shaped structures are arranged at the top and the bottom of the anti-collision frame, and when the proximity switch induction iron plate abuts against the inclined faces of the trumpet-shaped structures, the anti-collision frame can move towards the proximity switch induction iron plate, so that the proximity switch induction iron plate penetrates through the anti-collision frame, and direct collision between the anti-collision frame and the proximity switch induction iron plate is avoided; according to the utility model, the elastic connecting piece and the horn mouth structure are utilized to avoid the problem of hard collision between the proximity switch induction iron plate and the limiting structure caused by the movement clearance of the lifting appliance of the lifting machine, so that the limiting faults are effectively reduced, and the normal work of the dry quenching lifting machine is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hoist limit structures, in particular to a dry coke quenching hoist limit anti-collision device. Background Art

[0002] A number of limit structures are set on the path from the bottom to the top of the CDQ hoisting shaft, including hook opening limit, descent deceleration limit, lift-off acceleration limit, standby, standby deceleration limit, derrick combination limit, unloading limit and lifting upper limit, etc. During the high-speed lifting process of the derrick, many problems such as the overload of coke in the coke filling and the large gap between the inner lining plate and the guide wheel of the lifting derrick will cause the hoist of the hoist to shake. Then the proximity switch sensing iron plate fixed on the mobile hoist will collide hard with the limit structure (electromagnetic proximity sensing switch) fixed on the derrick, causing the limit to fail. The CDQ will not be able to produce normally, resulting in shutdown of the furnace.

[0003] At present, the limit sensing devices of the lifting devices of the dry quenching coke elevators in coking plants across the country are directly welded to the hanger frame. To solve this problem, the existing limit devices are technically transformed into limit anti-collision sensing devices, filling the technical gap in the elevator industry. Utility Model Content

[0004] The utility model provides a position limiting and anti-collision device for a dry coke quenching elevator, which can at least solve one problem pointed out in the background technology.

[0005] A position limiting and anti-collision device for a dry quenching coke hoist, comprising a U-shaped electromagnetic proximity induction switch and a proximity switch induction iron plate connected to a mobile hanger, and further comprising:

[0006] The anti-collision frame has a passage in the middle for allowing the proximity switch sensing iron plate to pass through, and a mounting groove for mounting a U-shaped electromagnetic proximity sensing switch is provided in the passage; and

[0007] A mounting structure connecting the hoisting machine frame and the anti-collision frame, the anti-collision frame having at least a degree of freedom to move horizontally on the mounting structure;

[0008] Among them, the top and bottom of the anti-collision frame are both provided with trumpet-shaped structures. When the proximity switch sensing iron plate hits the inclined surface of the trumpet-shaped structure, the anti-collision frame can move toward the proximity switch sensing iron plate, so that the proximity switch sensing iron plate passes through the anti-collision frame, avoiding direct collision between the anti-collision frame and the proximity switch sensing iron plate.

[0009] The mounting structure comprises:

[0010] A fixing plate, used for connection with the derrick;

[0011] a connecting rod connected to the fixing plate; and

[0012] An elastic connector connects the connecting rod and the anti-collision frame.

[0013] The elastic connecting member comprises:

[0014] A guide rod, fixedly mounted on the connecting rod;

[0015] A lug plate fixedly connected to the crash frame; and

[0016] The spring is sleeved on the guide rod, one end of which is connected to the ear plate, and the other end of which is connected to the connecting rod.

[0017] The connecting rod is connected to the anti-collision frame through two groups of elastic connecting members.

[0018] The connecting rod and the anti-collision frame are also connected by an auxiliary positioning structure, and the auxiliary positioning structure includes:

[0019] at least one locating bolt threadedly connected to the crash bar; and

[0020] A positioning plate is fixedly connected to the connecting rod, and a through slot is provided on the positioning plate to match the positioning bolt;

[0021] When the proximity switch sensing iron plate 2 contacts the inclined surface of the trumpet-shaped structure, the positioning bolt can move in the through slot.

[0022] Preferably, the anti-collision frame is provided with a threaded through hole communicating with the mounting groove.

[0023] Preferably, the connecting rod is an elastic telescopic rod structure.

[0024] Preferably, the connecting rod is obliquely arranged between the derrick and the anti-collision frame.

[0025] Preferably, the trumpet-shaped structure has three inclined surfaces.

[0026] Compared with the prior art, the utility model has the following beneficial effects: the utility model utilizes elastic connectors and a bell-mouth structure to avoid the problem of hard collision between the proximity switch sensing iron plate and the limit structure caused by the movement clearance of the hoisting device of the hoist, thereby effectively reducing limit failures and ensuring the normal operation of the dry quenching coke hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of one of the viewing angles of the utility model;

[0028] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0029] Figure 3 This is a cross-sectional view of the connecting rod structure of the utility model;

[0030] Figure 4 It is a cross-sectional view of the anti-collision frame of the utility model;

[0031] Figure 5 It is a schematic diagram of the structure of the connecting rod of the utility model after being tilted.

[0032] Description of reference numerals:

[0033] 1-U-type electromagnetic proximity sensing switch, 2-proximity switch sensing iron plate, 3-anti-collision frame, 4-channel, 5-fixed plate, 6-connecting rod, 7-guide rod, 8-ear plate, 9-spring, 10-trumpet-shaped structure, 11-positioning bolt, 12-positioning plate, 13-through slot. DETAILED DESCRIPTION

[0034] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0035] like Figures 1 to 5 As shown, a position limiting and anti-collision device for a dry coke quenching elevator provided by an embodiment of the utility model comprises a U-shaped electromagnetic proximity sensing switch 1, a proximity switch sensing iron plate 2, an anti-collision frame 3 and a mounting structure;

[0036] Among them, the proximity switch sensing iron plate 2 is fixedly installed on the mobile lifting device of the hoist;

[0037] like Figure 1 As shown, the middle position of the anti-collision frame 3 has a channel 4 through which the proximity switch sensing iron plate 2 can pass, and a mounting groove for mounting the U-shaped electromagnetic proximity sensing switch 1 is opened in the channel;

[0038] like Figure 2 As shown, the mounting structure connects the hoist derrick and the anti-collision frame, and the mounting structure includes a fixing plate 5, a connecting rod 6 and an elastic connecting member. The fixing plate 5 is connected to the derrick and has a mounting hole thereon. The connecting rod 6 is connected to the fixing plate 5, and the elastic connecting member connects the connecting rod 6 and the anti-collision frame 3. Two groups of elastic connecting members are symmetrically arranged on the connecting rod 6. Specifically, the elastic connecting member includes a guide rod 7, an ear plate 8 and a spring 9. The guide rod 7 is fixedly mounted on the connecting rod 6, and the ear plate 8 is fixedly connected to the anti-collision frame 3. The spring 9 is sleeved on the guide rod, and one end of the spring abuts against the ear plate 8, and the other end abuts against the connecting rod 6.

[0039] Based on this, the anti-collision frame 3 has at least the freedom to move horizontally along the guide rod on the mounting structure;

[0040] The top and bottom of the anti-collision frame 3 are both provided with a trumpet-shaped structure 10. When the proximity switch sensing iron plate 2 contacts the inclined surface of the trumpet-shaped structure 10, the anti-collision frame 3 can move toward the proximity switch sensing iron plate 2, so that the proximity switch sensing iron plate 2 passes through the anti-collision frame, thereby avoiding direct collision between the anti-collision frame 3 and the proximity switch sensing iron plate 2.

[0041] like Figure 5 As shown, in order to make the connection between the mounting structure and the anti-collision frame 3 more stable, the connecting rod 6 and the anti-collision frame 3 are also connected by an auxiliary positioning structure, and the auxiliary positioning structure includes a plurality of positioning bolts 11 and a positioning plate 12. In this embodiment, four positioning bolts 11 are used as an example, and the positioning bolts 11 are threadedly connected to the anti-collision frame; the positioning plate 12 is fixedly connected to the connecting rod 6, and a through groove 13 that cooperates with the positioning bolts 11 is also provided on the positioning plate 12;

[0042] When the proximity switch sensing iron plate 2 contacts the inclined surface of the trumpet-shaped structure, the positioning bolt 11 can move in the through slot 13;

[0043] In addition, if Figure 4 As shown, the anti-collision frame 3 is provided with a threaded through hole communicating with the mounting groove, so that the U-shaped electromagnetic proximity sensing switch 1 can be fixed by bolts;

[0044] In addition, if Figure 3 As shown, the trumpet-shaped structure 10 of this embodiment has three inclined surfaces, and the connecting rod 6 is an elastic telescopic rod structure. When the proximity switch sensing iron plate 2 abuts on the two opposite inclined surfaces of the trumpet-shaped structure 10, the anti-collision frame 3 will move in the horizontal direction. When the proximity switch sensing iron plate 2 abuts on the other inclined surface, the anti-collision frame 3 will move in the direction of the length of the connecting rod 6. In addition, in order to further buffer the force of the proximity switch sensing iron plate 2 abutting on the inclined surface of the trumpet-shaped structure 10, as shown in FIG. Figure 5 As shown, the connecting rod 6 is tiltedly arranged between the derrick and the anti-collision frame 3. Based on this, when the proximity switch sensing iron plate 2 hits any inclined surface, the anti-collision frame 3 will move downward by a certain buffer distance.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit and basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim involved.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A position limiting and anti-collision device for a dry quenching coke hoist, comprising a U-shaped electromagnetic proximity induction switch and a proximity switch induction iron plate connected to a mobile hanger, characterized in that: Also includes: The anti-collision frame has a channel in the middle for the proximity switch sensing iron plate to pass through, and a mounting groove for installing a U-shaped electromagnetic proximity sensing switch is provided in the channel; as well as A mounting structure connecting the hoisting machine frame and the anti-collision frame, the anti-collision frame having at least a degree of freedom to move horizontally on the mounting structure; Among them, the top and bottom of the anti-collision frame are both provided with trumpet-shaped structures. When the proximity switch sensing iron plate hits the inclined surface of the trumpet-shaped structure, the anti-collision frame can move toward the proximity switch sensing iron plate, so that the proximity switch sensing iron plate passes through the anti-collision frame, avoiding direct collision between the anti-collision frame and the proximity switch sensing iron plate.

2. The position limiting and anti-collision device for the dry quenching coke elevator according to claim 1, characterized in that: The mounting structure comprises: A fixing plate, used for connection with the derrick; a connecting rod connected to the fixing plate; and An elastic connector connects the connecting rod and the anti-collision frame.

3. The position limiting and anti-collision device for the dry quenching coke elevator according to claim 2, characterized in that: The elastic connecting member comprises: A guide rod, fixedly mounted on the connecting rod; A lug plate fixedly connected to the crash frame; and The spring is sleeved on the guide rod, one end of which is connected to the ear plate, and the other end of which is connected to the connecting rod.

4. The position limiting and anti-collision device for the dry quenching coke elevator according to claim 2, characterized in that: The connecting rod is connected to the anti-collision frame through two groups of elastic connecting members.

5. The position limiting and anti-collision device for the dry quenching coke elevator according to claim 2, characterized in that: The connecting rod and the anti-collision frame are also connected by an auxiliary positioning structure, and the auxiliary positioning structure includes: at least one locating bolt threadedly connected to the crash bar; and A positioning plate is fixedly connected to the connecting rod, and a through slot is provided on the positioning plate to cooperate with the positioning bolt; When the proximity switch sensing iron plate contacts the inclined surface of the trumpet-shaped structure, the positioning bolt can be moved in the through slot.

6. The position limiting and anti-collision device for a dry quenching coke elevator according to claim 1, characterized in that: The anti-collision frame is provided with a threaded through hole communicated with the mounting groove.

7. The position limiting and anti-collision device for a dry coke quenching elevator according to claim 2, characterized in that: The connecting rod is an elastic telescopic rod structure.

8. The position limiting and anti-collision device for the dry quenching coke elevator according to claim 7, characterized in that: The connecting rod is obliquely arranged between the derrick and the anti-collision frame.

9. The position limiting and anti-collision device for a dry coke quenching elevator according to claim 7, characterized in that: The trumpet-shaped structure has three inclined surfaces.

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