CN204640148U - A kind of hydraulic support main control valve breaks the extracting tool of spool - Google Patents

Abstract

The utility model discloses a kind of hydraulic support main control valve to break the extracting tool of spool, comprise for the bracing or strutting arrangement of supporting post-rod and the clamping device for mobile push rod, bracing or strutting arrangement is connected by gripper shoe with described clamping device.In this device, push rod is processed with suspension hook, by bracing or strutting arrangement, push rod is fixed, after disconnected spool is sling by suspension hook, move push rod by clamping device, thus taken out from valve body by disconnected spool, this device not only can very easily by disconnected valve core taking, and structure is simple, easily operates.

Description

A tool for removing the main control valve core of a hydraulic support

technical field

The utility model belongs to the technical field of dismantling tools, and relates to a dismantling tool for a main control valve of a hydraulic support to break a spool.

Background technique

In the mining industry, the hydraulic support of the fully mechanized mining face is often overhauled. During the overhaul, the fault of the main control spool breakage will be found. When dealing with these faults, the broken spool in the valve body needs to be taken out. Because the main control valve The gap between the core and the valve body is small, so it is difficult to take out the shut-off valve core with ordinary tools, which brings certain difficulties to the maintenance and reduces the maintenance efficiency.

Utility model content

The purpose of this utility model is to provide a dismantling tool for the broken valve core of the main control valve of the hydraulic support, which solves the problem that the broken valve core of the main control valve of the hydraulic support is difficult to take out in the prior art, which brings difficulties to the maintenance of the hydraulic support question.

The technical solution adopted by the utility model is a dismantling tool for the main control valve core of a hydraulic support, including a supporting device for supporting the ejector rod and a clamping device for moving the ejector rod, the supporting device and the clamping device Connection via support plate.

The utility model is also characterized in that,

Wherein the supporting device comprises a square table-shaped bracket, the center of the bracket is provided with a through hole, the inner wall of the through hole is engraved with threads, the ejector rod passes through the through hole and extends into the bracket, and one edge of the bracket desktop is provided with a cuboid perpendicular to the desktop A support plate, one side of the support plate is welded on the bracket, a rectangular groove is formed on the other surface of the support plate, a connecting shaft is embedded in the groove, and the connecting shaft is connected with the clamping device.

The clamping device includes a movable pipe wrench. The movable pipe wrench includes a cylindrical handle and a clamping mechanism for clamping the ejector rod. The handle is hinged to the clamping mechanism. The adjustment ball valve of the opening size of the mechanism has a connecting hole on the handle, and the connecting hole is perpendicular to and connected with the shank of the handle.

Wherein the groove runs through the thickness of the support plate, and the connecting axis is parallel to the concave plane of the groove.

One end of the ejector rod is bent into a hook shape, and a straight rod-shaped handle is welded on the other end of the ejector rod. The handle is perpendicular to the ejector rod. The holes are screwed together by threads.

Wherein the diameter of the handle is less than the length of the connecting shaft.

Wherein the connection hole is matched with the connection shaft.

The beneficial effect of the utility model is that a hook is processed on the ejector rod in the device, and the ejector rod is fixed by the supporting device. The core is taken out from the valve body, and the device can not only take out the broken valve core very conveniently, but also has a simple structure and is easy to operate.

Description of drawings

Fig. 1 is a schematic structural view of a dismounting tool for a main control valve core of a hydraulic support of the present invention;

Fig. 2 is a side view structural schematic diagram of the support plate in Fig. 1;

Fig. 3 is the structural representation of movable pipe wrench in Fig. 1;

Fig. 4 is a structural schematic diagram of the main control valve of the hydraulic support;

Fig. 5 is a schematic diagram of the broken valve core structure of the main control valve of the hydraulic support.

In the figure, 1. Push rod, 2. Movable pipe wrench, 3. Support plate, 4. Bracket, 5. Nut, 6. Connecting hole, 7. Connecting shaft, 8. Adjusting ball valve, 9. Handle, 10. Clamping Mechanism, 11. groove, 12. hydraulic support main control valve, 13. broken spool, 14. round hole a, 15. round hole b.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model is a dismounting tool for a main control valve core of a hydraulic support, as shown in Fig. The devices are connected by a support plate 3 .

The support device comprises a square table-shaped support 4, the center of the support 4 has a through hole, the hole wall of the through hole is provided with threads, the ejector rod 1 passes through the through hole and stretches into the support 4, and one side edge of the support 4 desktop is provided with A cuboid support plate 3 perpendicular to its desktop, one side of the support plate 3 is welded on the bracket 4, and the other side of the support plate 3 is provided with a rectangular groove 11, the groove 11 runs through the thickness of the support plate 3, and the inside of the groove 11 A connecting shaft 7 is embedded, and the connecting shaft 7 is parallel to the concave plane of the groove 11 .

As shown in Figure 3, the clamping device includes a movable pipe wrench 2, and the movable pipe wrench 2 includes a cylindrical handle 9 and a clamping mechanism 10, the handle 9 is hinged to the clamping mechanism 10, and the connection between the handle 9 and the clamping mechanism 10 An adjustment ball valve 8 for adjusting the opening size of the clamping mechanism 10 is provided, and a connecting hole 6 cooperating with the connecting shaft 7 is opened on the handle 9 , and the connecting hole 6 is vertical and penetrates along the handle body of the handle 9 .

The clamping mechanism 10 is used for clamping the push rod 1 .

The clamping device is connected with the supporting plate 3 through the cooperation of the connecting hole 6 and the connecting shaft 7 . The diameter of the handle 9 is less than the length of the connecting shaft 7, so that the handle 9 can move back and forth on the connecting shaft 7.

One end of the push rod 1 is bent into a hook shape, and the other end of the push rod 1 is welded with a straight rod-shaped handle, which is perpendicular to the push rod 1 . Threads are engraved on the body of the push rod 1 and a nut 5 is sleeved on it, and the nut 5 is fixed on the bracket 4 by rivets.

The utility model uses a dismounting tool for a main control valve of a hydraulic support. The structure of the main control valve 12 of the hydraulic support is shown in FIG. The end of the rod 1 with the hook is inserted into the main control valve 12 of the hydraulic support through the round hole b15, and the hook of the ejector rod 1 acts on the break-off spool 13 in the main control valve 12 of the hydraulic support (the structure of the break-off spool 13 is shown in Figure 5 As shown), the hook of the ejector rod 1 passes through the round hole a14 to lift the broken valve core 13, adjust the ball valve 8, so that the clamping mechanism 10 clamps the ejector rod 1, the handle 9 moves back and forth on the rotating shaft 7, and the handle 9. Move once along the screw-out direction of the ejector rod 1, and the ejector rod 1 will rise a little distance from the main control valve 12 of the hydraulic support. At this time, adjust the ball valve 8 so that the clamping mechanism 10 releases the ejector rod 1. Then the clamping mechanism 10 clamps the part of the ejector rod 1 close to the support 4, and the handle 9 moves once more along the screw-out direction of the ejector rod 1, and the ejector rod 1 will rise a little more from the main control valve 12 of the hydraulic support. distance, so that the clamping mechanism 10 is loosened and clamped repeatedly until the push rod 1 is completely pulled out from the main control valve 12 of the hydraulic support, so that the broken valve core 13 is taken out.

The utility model is a disassembly tool for the main control valve core of a hydraulic support. The device adopts the jacking wire principle, and through the screw fit between the ejector rod 1 and the center through hole of the support 4, the ejector rod 1 is separated from the hydraulic support by a clamping device. The main control valve 12 is removed, so that the broken valve core 13 in the main control valve 12 of the hydraulic support is taken out, the structure is simple, and the operation is easy.

Claims (7)

1. a hydraulic support main control valve breaks the extracting tool of spool, it is characterized in that: comprise for the bracing or strutting arrangement of supporting post-rod (1) and the clamping device for mobile push rod (1), described bracing or strutting arrangement is connected by gripper shoe (3) with described clamping device.

2. a kind of hydraulic support main control valve according to claim 1 breaks the extracting tool of spool, it is characterized in that: described bracing or strutting arrangement comprises the support (4) of square table shape, the center of support (4) has through hole, the inwall of described through hole is carved with screw thread, push rod (1) stretches in support (4) through described through hole, one side edge of support (4) desktop is provided with the cuboid gripper shoe (3) with its vertical, the one side of gripper shoe (3) is welded on support (4), the another side of gripper shoe (3) has rectangular groove (11), groove (11) is embedded with connecting axle (7), connecting axle (7) is connected with described clamping device.

3. a kind of hydraulic support main control valve according to claim 2 breaks the extracting tool of spool, it is characterized in that: described clamping device comprises alligator wrench (2), alligator wrench (2) comprises columned handle (9) and the clamping device (10) for clamping push rod (1), handle (9) is hinged with clamping device (10), handle (9) is provided with the adjustment ball valve (8) for adjusting clamping device (10) openings of sizes with the hinged place of clamping device (10), handle (9) has connecting hole (6), connecting hole (6) is vertical and through with the handle body of handle (9).

4. a kind of hydraulic support main control valve according to claim 2 breaks the extracting tool of spool, it is characterized in that: described groove (11) is through with the thickness of slab of described gripper shoe (3), and described connecting axle (7) is parallel with the interior concave plane of described groove (11).

5. a kind of hydraulic support main control valve according to claim 2 breaks the extracting tool of spool, it is characterized in that: one end of described push rod (1) is curved suspension hook shape, the other end of push rod (1) is welded with direct rod shape hand handle, described hand handle is vertical with push rod (1), the shaft of push rod (1) is carved with screw thread and overlaps and have nut (5), push rod (1) and described through hole pass through threaded engagement.

6. a kind of hydraulic support main control valve according to claim 3 breaks the extracting tool of spool, it is characterized in that: the diameter of described handle (9) is less than the length of connecting axle (7).

7. a kind of hydraulic support main control valve according to claim 3 breaks the extracting tool of spool, it is characterized in that: described connecting hole (6) and connecting axle (7) are connected.