Anti-jacking device for sampling head

Abstract

The utility model discloses an anti-jacking device for a sampling head. The anti-jacking device comprises a travelling crane rail, a travelling crane frame arranged on the travelling crane rail and an anti-jacking assembly fixedly connected to the travelling crane frame, the sampling head is fixedly mounted on the travelling crane frame; travelling crane wheels are arranged at two ends of the travelling crane frame; the anti-jacking assembly comprises a detection mechanism and a limiting piece, and one part of the limiting piece extends to the position below the crane rail. The detection mechanism comprises a sensor and an elastic part, a groove is formed in the side, close to the crane frame, of the crane rail, the elastic part abuts against the inner wall, parallel to the rail face of the crane rail, of the groove, and the sensor is used for detecting position changes of the elastic part. According to the utility model, the limiting piece is matched with the detection mechanism, so that the anti-jacking function of the sampling head is realized, in addition, the detection mechanism takes the groove on the side surface of the traveling rail as a detection surface, and the influence of an uneven rail surface of the traveling rail and external dust and broken stones can be avoided, so that the precision is improved, and the occurrence of misjudgment is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle sampling equipment field, especially a sampling head anti -lifting device. BACKGROUND

[0002] In the sampling process, when the sampling head encounters a larger coal or stone, because the screw head cannot directly drill and produce a reaction force to make the sampling head be lifted, the trolley wheel is derailed, the equipment is damaged, and cannot work normally, in order to prevent the sampling head from being lifted excessively, it is necessary to close the sampling head in the first time, the prior art is provided with a sensor for detecting the distance between the trolley wheel and the trolley rail, when the distance is too large, the sampling head is closed, but because the trolley rail is used for a long time, the accuracy of the sensor is poor due to the influence of the flatness of the trolley rail surface and the external dust and stone, and the sensor is easily triggered during normal work, and the work efficiency is reduced. SUMMARY

[0003] The utility model provides a sampling head anti -lifting device, at least can solve the problem pointed out in the background art.

[0004] A sampling head anti -lifting device, including trolley rail, the trolley frame of being arranged in trolley rail and the anti -lifting assembly of fixed connection in trolley frame;

[0005] The sampling head is fixedly installed on the trolley frame, and the trolley frame is provided with a trolley wheel at both ends;

[0006] The anti -lifting assembly includes a detection mechanism and a limiting piece, part of the limiting piece extends below the trolley rail;

[0007] The detection mechanism includes a sensor and an elastic member, the side of the trolley rail close to the trolley frame has a groove, the elastic member abuts against the inner wall of the groove parallel to the trolley rail surface, and the sensor is used to detect the position change of the elastic member.

[0008] Preferably, the trolley rail is an I-shaped.

[0009] Preferably, the limiting piece is an L-shaped plate, the vertical part of which is connected with the trolley frame, and the horizontal part is below the trolley rail.

[0010] Preferably, an arc-shaped groove is formed in the horizontal part of the limiting piece, and a strain gauge is installed in the arc-shaped groove.

[0011] Preferably, the elastic member includes a support plate, a spring and a plurality of support rods.

[0012] A cavity is formed in the limiting piece for accommodating the support plate and the spring, and the spring is located below the support plate.

[0013] One end of the plurality of support rods abuts against the inner wall of the groove, and the other end extends into the cavity and is connected with the support plate; a limiting piece is provided with a limiting slot for giving way to the plurality of support rods;

[0014] The sensor is mounted on the limiting piece, and a detection block is fixedly connected to the support plate, and a detection area of the sensor is located on a movement path of the detection block.

[0015] Preferably, the end of the support rod is provided with a roller.

[0016] Preferably, the support rod is of an arc structure.

[0017] Preferably, a positioning rod is fixedly connected in the cavity, and the support plate is provided with a positioning slot matched with the positioning rod.

[0018] Compared with the prior art, the utility model has the advantages that: the utility model cooperates the limiting piece and the detection mechanism to realize the anti-lifting function of the sampling head, in addition, the detection mechanism takes the groove on the side of the track as a detection surface, can avoid the influence of the uneven track surface of the track and the external dust and gravel, thereby improving the precision and avoiding the misjudgment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model;

[0020] Fig. 2 It is a side view of the anti-lifting assembly of the utility model;

[0021] Fig. 3 It is an internal structure schematic view of the cavity of the limiting piece of the utility model;

[0022] Fig. 4 It is a partial structure schematic view of the detection mechanism of the utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS:

[0024] 1-track, 2-trolley frame, 3-trolley wheel, 4-limiting piece, 5-sensor, 6-groove, 7-support plate, 8-spring, 9-support rod, 10-positioning rod, 11-strain gauge, 12-roller, 13-detection block. DETAILED DESCRIPTION

[0025] One specific embodiment of the utility model will be described in detail below in combination with the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0026] As Figs. 1 to 4As shown, the utility model embodiment provides a kind of sampling head anti lifting device, including travelling crane rail 1, the travelling crane frame 2 being arranged on travelling crane rail 1 and the anti lifting component being fixedly connected on travelling crane frame 2;

[0027] The number of travelling crane rail 1 is two, so the both sides of travelling crane frame 2 are provided with anti lifting component;

[0028] Sampling head is fixedly installed on travelling crane frame 2, and travelling crane wheel 3 is arranged at the both ends of travelling crane frame 2;

[0029] Anti lifting component includes detection mechanism and limiting piece 4, and part of limiting piece 4 extends to the below of travelling crane rail 1;

[0030] Specifically, limiting piece 4 is L-shaped plate, and the vertical part of limiting piece 4 is connected with travelling crane frame 2, and the horizontal part of limiting piece 4 is below travelling crane rail 1;When sampling head is lifted, limiting piece 4 is in contact with travelling crane rail 1, so as to avoid sampling head to continue to move upward, and avoid travelling crane wheel 3 to derail, and in initial state, limiting plate has a certain distance with travelling crane rail 1;

[0031] The detection mechanism of the embodiment includes sensor 5 and elastic member, and travelling crane rail 1 is I-shaped, so travelling crane rail 1 has groove 6 near travelling crane frame 2, and elastic member is in contact with the inner wall of groove 6 parallel to the rail surface of travelling crane rail 1, and the inner wall of groove 6 is inside travelling crane rail 1, so it is not load-bearing surface, and its surface is more flat, and it is not easy to be affected by external dust and gravel, so when sampling head is lifted, elastic member will be displaced, and sensor 5 is used for detecting the position change of elastic member, and when it exceeds the preset threshold, sampling head is closed, to avoid further damage to sampling equipment;

[0032] The elastic member of the embodiment includes support plate 7, spring 8 and multiple support rods 9;

[0033] Limiting piece 4 is provided with cavity for accommodating support plate 7 and spring 8, spring 8 is below support plate 7, one end of multiple support rods 9 is in contact with the inner wall of groove 6, and the other end of multiple support rods 9 extends into the cavity and is connected with support plate 7, and limiting piece 4 is provided with displacement slot for giving way to multiple support rods 9;

[0034] Positioning rod 10 is fixedly connected in the cavity, and positioning slot is formed in support plate 7 and matched with positioning rod 10;

[0035] Sensor 5 is installed on limiting piece 4, and displacement hole is formed in limiting piece 4 for giving way to sensor 5, support plate 7 is fixedly connected with detection block 13, and the detection area of sensor 5 is located on the movement path of detection block 13, so whether support plate 7 is lowered can be detected, and when the height of support plate 7 is lowered exceeds the preset threshold, sensor 5 generates signal, and sampling head is controlled to be closed;

[0036] The sensor 5 of the embodiment can adopt a proximity switch or a distance sensor 5;

[0037] To avoid the support rod 9 directly rubbing against the trolley rail 1, the end of the support rod 9 is provided with a roller 12;

[0038] To play a buffering role, the support rod 9 is designed as an arc structure;

[0039] In addition, after the sampling head is lifted up, to prevent the sampling head from being unable to be closed due to the failure of the sensor 5, an arc-shaped groove 6 is formed on the horizontal part of the limiting piece 4, and a strain gauge 11 is installed in the arc-shaped groove 6; when the strain gauge 11 detects that the limiting piece 4 is deformed, it indicates that the limiting piece 4 has abutted against the trolley rail 1, that is, the sampling head is lifted up, and the strain gauge 11 sends a signal to the controller, and the controller stops the sampling work of the sampling head.

[0040] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather that the present application can be implemented in other concrete forms without departing from the spirit and essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being indicated by the appended claims rather than that of the above description, and it is intended to include all changes coming within the meaning and equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0041] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A sampling head anti-ejection device, characterized in that, The crane rail, the crane frame arranged on the crane rail and the anti-jacking assembly fixedly connected to the crane frame are included; The sampling head is fixedly installed on the crane frame, and the crane frame is provided with crane wheels at both ends thereof; The anti-jacking assembly includes a detection mechanism and a limiting piece, and a part of the limiting piece extends to below the crane rail; The detection mechanism includes a sensor and an elastic piece, one side of the crane rail close to the crane frame is provided with a groove, the elastic piece abuts against the inner wall of the groove parallel to the rail surface of the crane rail, and the sensor is used for detecting the position change of the elastic piece.

2. A sampling head anti-ejection device as claimed in claim 1, characterized in that The crane rail is in the shape of an I-beam.

3. A sampling head anti-ejection device as claimed in claim 1, characterized in that The limiting piece is an L-shaped plate, the vertical part of the L-shaped plate is connected to the crane frame, and the horizontal part is located below the crane rail.

4. A sampling head anti-ejection device as claimed in claim 3, characterized in that An arc-shaped groove is formed in the horizontal part of the limiting piece, and a strain gauge is installed in the arc-shaped groove.

5. A sampling head anti-ejection device as claimed in claim 4, characterized in that The elastic piece includes a support plate, a spring and a plurality of support rods. A cavity for accommodating the support plate and the spring is formed in the limiting piece, and the spring is located at the lower side of the support plate. One end of each of the plurality of support rods abuts against the inner wall of the groove, and the other end of each of the plurality of support rods extends into the cavity and is connected to the support plate. A displacement slot for giving space to the plurality of support rods is formed in the limiting piece.

6. A sampling head anti-ejection device as claimed in claim 5, characterized in that The sensor is installed on the limiting piece, a detection block is fixedly connected to the support plate, and the detection area of the sensor is located on the movement path of the detection block.

7. A sampling head anti-ejection device as claimed in claim 5, characterized in that The end of the support rod is provided with a roller.

8. A sampling head anti-ejection device as claimed in claim 5, characterized in that The support rod is in an arc-shaped structure. A positioning rod is fixedly connected in the cavity, and a positioning slot matched with the positioning rod is formed in the support plate.

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