Mining flame-proof electric push rod

Abstract

The utility model discloses a mining explosion-proof electric push rod, which belongs to the technical field of mining belt weighers, and specifically comprises a rack, a verification bar code and a telescopic device, the rack is connected with the verification bar code through the telescopic device, and the verification bar code is used for controlling the verification bar code to ascend and descend; the telescopic equipment comprises an anti-explosion shell and an electric push rod body, the anti-explosion shell is fixedly connected to the rack, the electric push rod body is arranged in the anti-explosion shell, a piston rod of the electric push rod body penetrates through a hole groove formed in the anti-explosion shell and is connected with the checking bar code, a cable leading-in mechanism is arranged on one side of the anti-explosion shell, and the cable leading-in mechanism is arranged on the other side of the anti-explosion shell. According to the utility model, through the arrangement of the electric push rod body, the lifting of the verification bar code can be accurately controlled, so that the accuracy of the verification process of the belt weigher is ensured, the reliability of material metering in mining production such as coal mines is further improved, an operator can remotely operate the electric push rod body, and the occurrence probability of personal injury accidents is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine electronic belt scale, and particularly relates to a mine explosion-proof electric push rod. BACKGROUND

[0002] In the mine conveying belt system, the calibration rod code is an important tool for detecting and calibrating the accuracy of the belt scale. It verifies the measurement accuracy of the belt scale by simulating the weight of the actual material, and ensures that it meets the production requirements and safety standards.

[0003] The existing belt scale code calibration is mainly calibrated by manually hanging the weight, and the weight is taken down after calibration. In the traditional manual operation, the operator may need to operate the device in a complex mine environment, which may cause the operator to be injured by the device or hit by heavy objects, and therefore, there is a need to provide a mine explosion-proof electric push rod to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] To solve the problems in the background art, the utility model provides a mine explosion-proof electric push rod, which has the characteristics of accurately controlling the lifting of the calibration rod code and reducing the probability of personal injury accidents.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a mine explosion-proof electric push rod, comprising a rack, a calibration rod code and a telescopic device, the rack is connected with the calibration rod code through the telescopic device, and is used for controlling the lifting of the calibration rod code;

[0006] The telescopic device comprises an explosion-proof shell and an electric push rod body, the explosion-proof shell is fixedly connected to the rack, the electric push rod body is arranged in the explosion-proof shell, the piston rod of the electric push rod body passes through the hole slot arranged on the explosion-proof shell and is connected with the calibration rod code, and a cable introduction mechanism is arranged on one side of the explosion-proof shell.

[0007] Preferably, a first sealing ring is fixedly connected in the hole slot, and the first sealing ring is movably sleeved on the piston rod of the electric push rod body.

[0008] Preferably, the cable introduction mechanism comprises a lead shell and a sealing shell, the lead shell is fixedly connected inside the wire slot of the explosion-proof shell, the sealing shell is detachably connected to the lead shell through a connecting piece, and the other end of the sealing shell is provided with a sealing piece.

[0009] Preferably, the connecting piece comprises a fixed ring, an insertion ring and a rotating ring, the fixed ring is movably sleeved on the outside of the lead shell, the fixed ring is provided with an insertion cavity matched with the insertion ring, one end of the insertion ring is fixedly connected to the sealing shell, and the other end of the insertion ring is inserted into the insertion cavity and is threadedly connected with the fixed ring.

[0010] Preferably, the side of the insertion cavity opposite to the insertion ring and the side of the insertion ring opposite to the lead shell are provided with a second sealing ring.

[0011] Preferably, the sealing member comprises a first sealing sleeve and a second sealing sleeve, the first sealing sleeve is fixedly connected to the inner wall of the sealing shell, and the second sealing sleeve is movably inserted into the first sealing sleeve.

[0012] Preferably, the first sealing sleeve and the second sealing sleeve are both hollow conical structures.

[0013] Preferably, the positioning member is further arranged for extruding and positioning the second sealing sleeve, the positioning member comprises a positioning ring and a limiting ring, the limiting ring is fixedly connected to the positioning ring, and the positioning ring is inserted into the sealing shell and is threadedly connected to the inner wall of the sealing shell.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The electric push rod body can accurately control the lifting of the verification rod, thereby ensuring the accuracy of the belt scale verification process, and improving the reliability of material measurement in coal mine production, and the operator can remotely operate the electric push rod body, and the probability of personal injury accidents is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the utility model;

[0019] Figure 3 It is a sectional structure schematic view of the cable introduction mechanism of the utility model;

[0020] Figure 4 It is the utility model Figure 3 It is an enlarged structure schematic view of A in the utility model;

[0021] Figure 5 It is the utility model Figure 3 It is an enlarged structure schematic view of B in the utility model;

[0022] In the figure: 1, explosion-proof shell; 2, electric push rod body; 3, first sealing ring; 4, cable introduction mechanism; 41, lead shell; 42, sealing shell; 43, fixing ring; 44, insertion ring; 45, insertion cavity; 46, second sealing ring; 47, first sealing sleeve; 48, second sealing sleeve; 49, positioning ring; 410, limiting ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5 The embodiment provides the following technical scheme: a mine explosion-proof electric push rod, comprising a rack, a verification rod code and a telescopic device, the rack is provided with the verification rod code, the lower part of the verification rod code is provided with the telescopic device for controlling the lifting of the verification rod code, the telescopic device comprises an explosion-proof shell 1 and an electric push rod body 2, the explosion-proof shell 1 is fixedly connected to the rack, the electric push rod body 2 is arranged in the explosion-proof shell 1, the piston rod of the electric push rod body 2 passes through the hole slot arranged on the explosion-proof shell 1 and is connected with the verification rod code, the electric push rod body 2 is arranged, the lifting of the verification rod code can be accurately controlled, thereby ensuring the accuracy of the verification process of the belt scale, and the reliability of material measurement in coal mine production and the like is improved, and an operator can remotely operate the electric push rod body 2, so that the probability of personal injury accidents is greatly reduced.

[0026] A first sealing ring 3 is fixedly connected in the hole slot, the first sealing ring 3 is movably sleeved on the piston rod of the electric push rod body 2, the first sealing ring 3 is arranged, and the sealing property of the inside of the explosion-proof shell 1 is improved.

[0027] Embodiment 2

[0028] The explosion-proof shell 1 is provided with a cable introduction mechanism 4 on one side, the cable introduction mechanism 4 comprises a lead shell 41 and a sealing shell 42, the lead shell 41 is fixedly connected to the inside of the wire slot on the explosion-proof shell 1, the sealing shell 42 is detachably connected to the lead shell 41 through a connecting piece, one end of the sealing shell 42 is provided with a sealing piece, the lead shell 41 and the sealing shell 42 are arranged, the cable is introduced into the inside of the explosion-proof shell 1, and the sealing property of the inside space of the explosion-proof shell 1 is further improved, so that the combustible gas in the outside is prevented from entering the inside of the equipment.

[0029] In some embodiments, both ends of the sealing shell 42 are hollow horn structures.

[0030] As Figure 4 shown, the connecting piece includes a fixed ring 43, an insertion ring 44 and a rotating ring, the fixed ring 43 is fixedly sleeved outside the lead shell 41, the fixed ring 43 is provided with an insertion cavity 45 matched with the insertion ring 44, the right end of the insertion ring 44 is fixedly connected on the sealing shell 42, the left end of the insertion ring 44 is inserted into the insertion cavity 45 and is threadedly connected with the fixed ring 43, through the fixed ring 43, the insertion ring 44 and the rotating ring, the sealing shell 42 can be conveniently disassembled and assembled on the lead shell 41, and the sealing property between the sealing shell 42 and the lead shell 41 is improved.

[0031] The side of the insertion cavity 45 opposite to the insertion ring 44 and the side of the insertion ring 44 opposite to the lead shell 41 are both provided with a second sealing ring 46, through the second sealing ring 46, the sealing property between the sealing shell 42 and the lead shell 41 is further improved.

[0032] As Figure 5 shown, the sealing piece includes a first sealing sleeve 47 and a second sealing sleeve 48, the first sealing sleeve 47 is fixedly connected on the inner wall of the sealing shell 42, the second sealing sleeve 48 is movably inserted into the first sealing sleeve 47, the first sealing sleeve 47 and the second sealing sleeve 48 are both hollow conical structures, through the first sealing sleeve 47 and the second sealing sleeve 48, when the cable is inserted into the sealing shell 42 from the right end of the sealing shell 42, the cable can be better extruded, and the sealing property between the sealing shell 42 and the cable is better improved.

[0033] As Figure 5 shown, further including a positioning piece for extruding and positioning the second sealing sleeve 48, the positioning piece includes a positioning ring 49 and a limiting ring 410, the positioning ring 49 is fixedly connected on the positioning ring 49, the positioning ring 49 is inserted into the sealing shell 42 and is threadedly connected with the inner wall of the sealing shell 42, through the positioning ring 49 and the limiting ring 410, in the process of extruding the second sealing sleeve 48, the second sealing sleeve 48 can better cooperate with the first sealing sleeve 47, the sealing property between the sealing shell 42 and the cable is improved, and the second sealing sleeve 48 can be disassembled and assembled.

[0034] The working principle of the utility model is: at the beginning of the verification, the electric push rod body 2 will descend, the verification weight is transported to the weight supporting platform through the electric push rod body 2, and then is placed on the load cell of the belt scale, after the verification, the electric push rod body 2 will ascend, the verification weight is removed from the load cell and is transported back to the original position.

[0035] The sealing shell 42 is screwed on the lead shell 41, then the cable is inserted into the sealing shell 42 from the left end of the sealing shell 42, at the same time, the fixing ring 43 and the limiting ring 410 are sleeved on the cable, and the cable is pushed into the lead shell 41, at this time, the second sealing sleeve 48 cooperates with the first sealing sleeve 47 during the process that the cable passes through the second sealing sleeve 48, so that the sealing shell 42 is in a sealed state, then the positioning ring 49 is rotated, the limiting ring 410 is screwed in the sealing shell 42, at the same time, the limiting ring 410 extrudes the second sealing sleeve 48, and the sealing property of the sealing shell 42 is further improved.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. 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. An explosion-proof electric push rod for mining, characterized in that: Including rack, check rod code and telescopic equipment, the rack is connected with check rod code through telescopic equipment, for controlling check rod code to go up and down; The telescopic equipment includes an explosion-proof shell (1) and an electric push rod body (2), the explosion-proof shell (1) is fixedly connected on the rack, the electric push rod body (2) is arranged in the explosion-proof shell (1), the piston rod of the electric push rod body (2) passes through the hole slot arranged on the explosion-proof shell (1) and is connected with the check rod code, one side of the explosion-proof shell (1) is provided with a cable introduction mechanism (4).

2. The explosion-proof electric push rod for mine according to claim 1, characterized in that: The hole slot is fixedly connected with a first sealing ring (3), the first sealing ring (3) is movably sleeved on the piston rod of the electric push rod body (2).

3. The explosion-proof electric push rod for mine according to claim 1, characterized in that: The cable introduction mechanism (4) includes a lead shell (41) and a sealing shell (42), the lead shell (41) is fixedly connected in the wire slot on the explosion-proof shell (1), the sealing shell (42) is detachably connected on the lead shell (41) through a connecting piece, and the other end of the sealing shell (42) is provided with a sealing piece.

4. The explosion-proof electric push rod for mine according to claim 3, characterized in that: The connecting piece includes a fixed ring (43), an insertion ring (44) and a rotating ring, the fixed ring (43) is fixedly sleeved on the outside of the lead shell (41), the fixed ring (43) is provided with an insertion cavity (45) matched with the insertion ring (44), one end of the insertion ring (44) is fixedly connected on the sealing shell (42), the other end of the insertion ring (44) is inserted into the insertion cavity (45) and is threadedly connected with the fixed ring (43).

5. The explosion-proof electric push rod for mine according to claim 4, characterized in that: The side of the insertion cavity (45) opposite to the insertion ring (44) and the side of the insertion ring (44) opposite to the lead shell (41) are both provided with a second sealing ring (46).

6. The explosion-proof electric push rod for mine according to claim 3, characterized in that: The sealing piece includes a first sealing sleeve (47) and a second sealing sleeve (48), the first sealing sleeve (47) is fixedly connected on the inner wall of the sealing shell (42), and the second sealing sleeve (48) is movably inserted into the first sealing sleeve (47).

7. The explosion-proof electric push rod for mine according to claim 6, characterized in that: The first sealing sleeve (47) and the second sealing sleeve (48) are both hollow conical structures.

8. The explosion-proof electric push rod for mine according to claim 3, characterized in that: Further comprising a positioning piece for extruding and positioning the second sealing sleeve (48), the positioning piece includes a positioning ring (49) and a limiting ring (410), the positioning ring (49) is fixedly connected with the positioning ring (49), and the positioning ring (49) is inserted into the sealing shell (42) and is threadedly connected with the inner wall of the sealing shell (42).

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