Movable pneumatic jack for coal mine

Abstract

The utility model discloses a movable pneumatic jack for a coal mine, which comprises a channel steel horizontally arranged and provided with an upward opening; the lead screw is arranged in the channel steel in the extending direction of the channel steel; one end of the lead screw is provided with a driving nut, and the other end is fixedly connected to the channel steel; the lead screw is sleeved with a walking nut, and the walking nut is fixedly connected with a connecting piece. The longitudinal rod is fixedly mounted at one end of the channel steel; the sleeve is sleeved on the longitudinal rod; the bracket is fixedly mounted on one side of the top of the sleeve; two ends of the connecting rod are respectively hinged to the connecting piece and the bracket; the driving nut is used for being connected with a pneumatic wrench so as to drive the lead screw to rotate and drive the connecting piece to reciprocate along the lead screw, and therefore the interior of the sleeve is pulled through the connecting rod to ascend and descend along the longitudinal rod. The problem that an existing common lithium battery electric jack is not suitable for underground operation of a coal mine is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mining equipment, and particularly relates to a movable pneumatic jack for coal mine.

BACKGROUND

[0002] The jack is often used in underground coal mine operation, such as when dealing with underground landslides, the jack is usually used to move large rocks to ensure personnel safety and road unobstructed, or the jack is used to lift various heavy objects through mechanical principles. Since the underground coal mine environment contains a large amount of flammable and explosive gas, mining electrical appliances and other equipment must adopt explosion-proof design to ensure safety. Common electric jacks generally use lithium batteries as power sources, for example, a lithium battery jack with model number EPL185 is equipped with a detachable 48-volt lithium battery, which has an external charger and is suitable for operation in a small space. However, although lithium batteries are not prone to explosion under normal circumstances, they still pose an explosion risk under certain conditions, for example, lithium batteries may explode under high temperature, short circuit, overcharge, etc. Therefore, common lithium battery electric jacks are not suitable for underground coal mine operation.

SUMMARY OF THE UTILITY MODEL

[0003] The utility model aims at providing a movable pneumatic jack for coal mine to solve the problem that common lithium battery electric jacks are not suitable for underground coal mine operation.

[0004] The utility model adopts the following technical scheme: a movable pneumatic jack for coal mine, comprising:

[0005] A channel steel is horizontally arranged and has an upward opening;

[0006] A lead screw is arranged inside the channel steel along the extension direction of the channel steel; one end of the lead screw is provided with a drive nut, and the other end is fixed to the channel steel; a walking nut is sleeved on the lead screw, and a connecting piece is fixed to the walking nut;

[0007] A vertical rod is fixedly installed at one end of the channel steel;

[0008] A sleeve pipe is sleeved on the vertical rod;

[0009] A support is fixedly installed on one side of the top of the sleeve pipe;

[0010] A connecting rod is hingedly connected to the connecting piece and the support at both ends;

[0011] The drive nut is used to be connected with a pneumatic wrench to drive the lead screw to rotate and drive the connecting piece to reciprocate along the lead screw, so that the sleeve pipe is pulled up and down along the vertical rod through the connecting rod.

[0012] Further, the top of the sleeve pipe is provided with a supporting plate.

[0013] Further, the bottom of the channel steel is provided with a wheel.

[0014] The jack has the advantages that: the jack has a novel structure, the power source is a pneumatic wrench, explosion of a lithium battery is avoided, the jack is simple in structure, convenient to use, and is very suitable for maintenance of a rubber-tyred vehicle in a coal mine, maintenance of a fully-mechanized coal mining machine, height adjustment and deviation adjustment of a belt rack, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a structural schematic view of a movable pneumatic jack for a coal mine according to the present application;

[0016] Figure 2 Fig. 2 is a structural schematic view of a lifting state of the movable pneumatic jack for a coal mine according to the present application.

[0017] 1. channel steel, 2. vertical rod, 3. lead screw, 4. drive nut, 5. supporting plate, 6. connecting piece, 7. sleeve, 8. support, 9. connecting rod, 10. wheel. DETAILED DESCRIPTION

[0018] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0019] The present application provides a movable pneumatic jack, as shown in Figure 1 and Figure 2 , which comprises:

[0020] a channel steel 1, which is horizontally arranged and has an upward opening;

[0021] a lead screw 3, which is arranged inside the channel steel 1 along the extension direction of the channel steel 1; one end of the lead screw 3 is provided with a drive nut 4, and the other end is fixed to the channel steel 1; a walking nut is sleeved on the lead screw 3, and a connecting piece 6 is fixed to the walking nut;

[0022] a vertical rod 2, which is fixedly installed at one end of the channel steel 1;

[0023] a sleeve 7, which is sleeved on the vertical rod 2;

[0024] a support 8, which is fixedly installed at one side of the top of the sleeve 7;

[0025] a connecting rod 9, which is hingedly connected to the connecting piece 6 and the support 8 at both ends, respectively;

[0026] The driving nut 4 is used to be connected with the pneumatic wrench to drive the screw rod 3 to rotate and drive the connecting piece 6 to move along the screw rod 3, so that the sleeve 7 is pulled along the vertical rod 2 through the connecting rod 9.

[0027] In some embodiments, the top of the sleeve 7 is provided with a supporting plate 5. The size of the supporting plate 5 can be designed and selected according to the needs of the use scene.

[0028] In some embodiments, the bottom of the channel steel 1 is provided with wheels 10. The wheels 10 can be conveniently moved to the working site.

[0029] As shown in Figure 1 and Figure 2 The use method of the movable pneumatic jack for coal mine is as follows:

[0030] The pneumatic wrench is connected to the driving nut 4, and the screw rod 3 is driven to rotate by starting the pneumatic wrench;

[0031] The walking nut translates along the screw rod 3 to drive the connecting piece 6 to translate;

[0032] The connecting rod 9 rotates and displaces following the movement of the connecting piece 6, so as to drive the bracket 8 and the sleeve 7 to lift.

[0033] The movable pneumatic jack for coal mine is designed with a new structure of jack, and the power source is the pneumatic wrench, so the problem of easy explosion of lithium battery is avoided, and it is a kind of equipment with simple structure, convenient to use and very suitable for underground operation of coal mine.

Claims

1. A mobile pneumatic jack for use in coal mines, characterised in that, The utility model relates to a wind-driven lifting device, comprising: a channel steel (1) horizontally arranged and open upwardly; a lead screw (3) arranged inside the channel steel (1) along the extension direction of the channel steel (1); one end of the lead screw (3) is provided with a driving nut (4), the other end is fixedly connected to the channel steel (1); a walking nut is sleeved on the lead screw (3), a connecting piece (6) is fixedly connected to the walking nut; a vertical rod (2) fixedly installed at one end of the channel steel (1); a sleeve pipe (7) sleeved on the vertical rod (2); a support (8) fixedly installed at one side of the top of the sleeve pipe (7); a connecting rod (9) hingedly connected to the connecting piece (6) and the support (8) at two ends respectively; wherein the driving nut (4) is used for being connected with a wind-driven wrench to drive the lead screw (3) to rotate and drive the connecting piece (6) to reciprocate along the lead screw (3), so as to pull the sleeve pipe (7) to ascend and descend along the vertical rod (2) through the connecting rod (9).

2. A mobile pneumatic jack for use in coal mines as claimed in claim 1 wherein, The top of the sleeve pipe (7) is provided with a supporting plate (5).

3. A mobile pneumatic jack for use in coal mines as claimed in claim 1 or 2 wherein, The bottom of the channel steel (1) is provided with a wheel (10).

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