Loop chain hydraulic shear

Abstract

The utility model relates to the technical field of loop chain hydraulic shear equipment, and discloses a loop chain hydraulic shear which comprises a hydraulic cylinder body, a knife rest is fixedly connected to the outer wall of the hydraulic cylinder body, a movable knife is installed in the hydraulic cylinder body, and a fixed knife matched with the movable knife is fixedly connected to the outer wall of the knife rest. Round shafts are fixedly connected to the outer walls of the two sides of the tool rest, the tool rest is movably connected with an overturning frame through the round shafts, sliding grooves are formed in the outer walls of the two sides of the overturning frame, sliding blocks are slidably connected to the outer walls of the sliding grooves, movable tightening hooks are fixedly connected to the outer walls of the bottoms of the sliding blocks, and the two movable tightening hooks are symmetrically distributed on the two sides of the movable cutter and the two sides of the fixed cutter. According to the utility model, the swing of the loop chain during shearing can be effectively avoided, the shearing efficiency and precision are improved, and meanwhile, due to the protection effect of the protective cover, the operation risk is greatly reduced, and the requirements of the shearing work of the loop chain of the underground coal mine scraper conveyor on the safety and reliability of equipment are met.

Description

TECHNICAL FIELD

[0001] The utility model application relates to ring chain hydraulic shearing equipment technical field, especially a kind of ring chain hydraulic shears. BACKGROUND

[0002] In the daily maintenance and overhaul work of coal mine scraper conveyor, ring chain is often needed to be sheared, due to the limited working space in the mine, complex and dangerous operation environment, the portability of ring chain shearing tool, operation convenience and safety are all put forward higher requirements, at the same time, to ensure the smooth progress of shearing operation, reliable fixation is needed to the ring chain, to prevent it from shaking in the shearing process and affecting the shearing precision and operation safety.

[0003] For the related technology in the above, the inventor believes that the existing ring chain shearing equipment is often complex in structure, large in size, difficult to operate flexibly in narrow underground space, and due to the large weight and flexibility of ring chain, the existing equipment is difficult to effectively constrain it during shearing, when shearing force acts on ring chain, the swing of ring chain will cause the contact position of blade and ring chain to change constantly, so that the stress of blade is uneven each time shearing, which is not convenient for shearing ring chain, thereby greatly reducing the shearing efficiency and precision, therefore, a kind of ring chain hydraulic shears is proposed to solve the above problems.

[0004] The above information disclosed in the background is only used to increase the understanding of the background of the application, therefore, it can include prior art known by those skilled in the art. INVENTION CONTENTS

[0005] To solve the above problems, the application provides a kind of ring chain hydraulic shears.

[0006] The utility model application provides a kind of ring chain hydraulic shears adopts the following technical scheme:

[0007] A kind of ring chain hydraulic shears, including hydraulic cylinder body, the outer wall of the hydraulic cylinder body is fixedly connected with tool rest, and the inside of the hydraulic cylinder body is provided with installation and moves to knife, the outer wall of the tool rest is fixedly connected with the fixed knife matched with moving knife, the outer wall of the both sides of the tool rest is fixedly connected with round shaft, and the tool rest is movably connected with turnover frame by round shaft, the both sides of the outer wall of the turnover frame is equipped with sliding slot, and the outer wall of the sliding slot is slidably connected with sliding block, the bottom outer wall of the sliding block is fixedly connected with mobile hook, and two mobile hooks are symmetrically distributed on the both sides of moving knife and fixed knife, the top outer wall of the turnover frame is provided with driving assembly.

[0008] Preferably, the driving assembly comprises a driving rod, the driving rod is rotatably connected with the top outer wall of the tool holder, the outer wall of the sliding block is fixedly connected with connecting columns, and connecting rods are arranged between the driving rod and the two connecting columns respectively, and the two ends of the connecting rod are hingedly connected with the driving rod and the connecting column respectively.

[0009] Preferably, the outer wall of the driving rod is fixedly connected with a rotating rod, and the outer wall of the rotating rod is threadedly connected with a threaded handle, the outer wall of the tool holder on one side of the driving rod is circumferentially and arrayedly provided with a plurality of circular grooves, and the plurality of circular grooves are matched with the threaded handle.

[0010] Preferably, the outer wall of the turnover frame is fixedly connected with a fixed block, and the outer wall of the fixed block is provided with a bolt.

[0011] Preferably, the side outer wall of the turnover frame is fixedly connected with two long rods, and the two long rods are commonly provided with a protective cover.

[0012] To sum up, the application has the following beneficial technical effects:

[0013] The device is convenient to carry and operate in the narrow space in the coal mine underground by the reasonable layout of the hydraulic cylinder body, the tool holder, the turnover frame and other components, the driving assembly is arranged, the rotating driving rod is driven, the connecting rod and the sliding block drive the moving hook to pull and fix the ring chain, the ring chain is in a tight state, the contact position is avoided from deviating in the shearing process, the swing of the ring chain in shearing is effectively avoided, the shearing efficiency and precision are improved, the protective effect of the protective cover is added, the operation risk is greatly reduced, and the safety and reliability of the equipment are met for the ring chain shearing work of the coal mine underground scraper conveyor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a partial structure schematic view of the application embodiment;

[0015] Figure 2 is a whole structure schematic view of the application embodiment;

[0016] Figure 3 is a three-dimensional structure schematic view of the application embodiment;

[0017] Figure 4 is Figure 3 is an enlarged schematic view of structure A in the middle.

[0018] Marked: 1, hydraulic cylinder body; 2, tool holder; 3, protective cover; 4, turnover frame; 5, moving knife; 6, fixed knife; 7, moving hook; 8, sliding block; 9, sliding groove; 10, circular shaft; 11, fixed block; 12, bolt; 13, driving rod; 14, rotating rod; 15, threaded handle; 16, connecting rod; 17, connecting column; 18, circular groove; 19, long rod. DETAILED DESCRIPTION

[0019] The following description will be made in conjunction with the accompanying drawings Figure 1 - Figure 4 The application is further described in detail.

[0020] A ring chain hydraulic shear includes a hydraulic cylinder body 1, the outer wall of the hydraulic cylinder body 1 is fixedly connected with a tool holder 2, the hydraulic cylinder body 1 is the power core component of the whole hydraulic shear, the hydraulic cylinder body 1 provides power for the internal hydraulic system in the mode of oil injection, the side outer wall of the hydraulic cylinder body 1 is provided with an oil injection port, the oil injection port is threadedly connected with a sealing oil cover, the inner wall of the sealing oil cover is provided with a rubber sealing ring, which can effectively prevent hydraulic oil leakage, the oil injection port is connected with an external oil storage tank through an oil pipe, a manual stop valve is installed on the oil pipe, which is used for controlling the injection and stop of hydraulic oil, the hydraulic cylinder body 1 is internally provided with a piston assembly, the piston assembly includes a piston and a piston rod, the piston is in sliding sealing connection with the inner wall of the hydraulic cylinder body 1, and the hydraulic cylinder body 1 is divided into a rod cavity and a rodless cavity, before ring chain shearing operation, the required hydraulic oil is injected into the rodless cavity of the hydraulic cylinder body 1 through the opening of the sealing oil cover and the manual stop valve. When it is needed to drive the moving knife 5 to move, the manual stop valve is closed, the external hydraulic pump is connected with the rod cavity of the hydraulic cylinder body 1 in communication through the oil pipe, when the hydraulic pump works, high-pressure hydraulic oil is injected into the rod cavity, the piston is pushed to move the piston rod, the piston rod is fixedly connected with the moving knife 5, so that the moving knife 5 moves towards the fixed knife 6 under the driving of the hydraulic power to complete the shearing operation of the ring chain, and the moving knife 5 is installed in the internal hydraulic cylinder body 1, the outer wall of the tool holder 2 is fixedly connected with the fixed knife 6 matched with the moving knife 5, the moving knife 5 moves under the driving of the internal hydraulic power of the hydraulic cylinder body 1, the outer wall of the tool holder 2 is also fixedly connected with the fixed knife 6 in the mode of bolt connection, the fixed knife 6 is matched with the moving knife 5 to jointly form the working part of shearing the ring chain, the outer walls of the two sides of the tool holder 2 are fixedly connected with circular shafts 10, the tool holder 2 is movably connected with the turnover frame 4 through the circular shafts 10, the tool holder 2 is movably connected with the turnover frame 4 through the circular shafts 10, so that the turnover frame 4 can perform turnover movement with the circular shafts 10 as the shaft, the outer walls of the two sides of the turnover frame 4 are both provided with sliding grooves 9 extending along the length direction of the turnover frame 4, the outer walls of the sliding grooves 9 are movably connected with sliding blocks 8, so that the sliding blocks 8 can move on the sliding grooves 9, the bottom outer walls of the sliding blocks 8 are fixedly connected with movable hooks 7, and the two movable hooks 7 are symmetrically distributed on the two sides of the moving knife 5 and the fixed knife 6, the top outer wall of the turnover frame 4 is provided with a driving assembly, the two movable hooks 7 are connected with the ring chain respectively, and the driving assembly drives the two sliding blocks 8 to move, so that the movable hooks 7 drive the ring chain to be pulled, and then the ring chain becomes in a tight state, avoids swinging, maintains the stability of the ring chain shearing, and makes it convenient for the subsequent fixed knife 6 and moving knife 5 to shear the ring chain.

[0021] The driving assembly comprises a driving rod 13 rotatably connected with the top outer wall of the tool holder 2, the outer wall of the sliding block 8 is fixedly connected with a connecting column 17, and a connecting rod 16 is arranged between the driving rod 13 and the two connecting columns 17 respectively, the two ends of the connecting rod 16 are hingedly connected with the driving rod 13 and the connecting column 17 respectively, when the ring chain is placed between the moving knife 5 and the fixed knife 6, the moving hook 7 is connected with the two sides of the ring chain by turning the turnover frame 4 to the appropriate position, and the operator rotates the driving rod 13 to drive the driving rod 13 to drive the sliding blocks 8 on the two sides to move linearly outward through the connecting rods 16 and the connecting columns 17 on the two sides, so that the moving hook 7 pulls the ring chain to make it tight, which is convenient for subsequent shearing.

[0022] The outer wall of the driving rod 13 is fixedly connected with a rotating rod 14, and the outer wall of the rotating rod 14 is threadedly connected with a threaded handle 15, the outer wall of the rotating rod 14 is provided with external threads, the inner wall of the threaded handle 15 is provided with internal threads matched with the external threads of the rotating rod 14, and the outer wall of the tool holder 2 on one side of the driving rod 13 is provided with a plurality of circular grooves 18 in a circular array, and the plurality of circular grooves 18 are matched with the threaded handle 15, the operator rotates the rotating rod 14 by rotating the threaded handle 15 to drive the driving rod 13 to rotate, thereby adjusting the position of the moving hook 7, thereby achieving the effect of tightening the ring chain, and when the moving hook 7 is adjusted to the appropriate position, the operator rotates the threaded handle 15 alone to make the end of the threaded handle 15 clamped into the circular groove 18, thereby fixing the driving rod 13, preventing the driving rod 13 from rotating during shearing, and ensuring the fixing effect of the moving hook 7 on the ring chain.

[0023] The outer wall of the turnover frame 4 is fixedly connected with a fixed block 11, and the outer wall of the fixed block 11 is provided with a latch 12, and the fixed block 11 and the tool holder 2 are both provided with through holes, when shearing is needed, the through hole on the fixed block 11 is butted with the through hole on the tool holder 2 by rotating the turnover frame 4, so that the latch 12 is inserted into the through hole, thereby fixing the turnover frame 4, and avoiding movement of the turnover frame 4 during shearing.

[0024] The side outer wall of the turnover frame 4 is fixedly connected with two long rods 19, the two long rods 19 are arranged in parallel, and the two long rods 19 are jointly provided with a protective cover 3, the protective cover 3 is made of a semi-transparent high-strength material, which can protect the safety of the operator without affecting the observation of the shearing operation.

[0025] The utility model discloses an implementation principle of a ring chain hydraulic shear is: first, the ring chain is placed between the moving knife 5 and the fixed knife 6. At this time, the operator rotates the turnover frame 4 to the appropriate position, so that the moving tight hook 7 on both sides of the turnover frame 4 can be connected with both sides of the ring chain, and the operator can rotate the rotating rod 14 by the threaded handle 15, and the rotating rod 14 drives the driving rod 13 to rotate. Since the driving rod 13 is rotatably connected to the top outer wall of the tool holder 2, and the driving rod 13 is hingedly connected between the two connecting columns 17 through the connecting rod 16, and the outer wall of the sliding block 8 is further fixedly connected with the connecting column 17, when the driving rod 13 rotates, it will drive the sliding block 8 on both sides to move outward in a straight line in the sliding groove 9 on both sides of the turnover frame 4 through the connecting rod 16 and the connecting column 17 on both sides. The movement of the sliding block 8 drives the bottom moving tight hook 7 to pull the ring chain, so that the ring chain becomes tight, avoiding swinging during shearing, maintaining the stability of the ring chain shearing, and preparing for subsequent shearing operation. When the moving tight hook 7 is adjusted to the appropriate position, rotate the threaded handle 15 alone. Since the external threads on the outer wall of the rotating rod 14 are matched with the internal threads in the inner wall of the threaded handle 15, and the outer wall of the tool holder 2 on the side of the driving rod 13 is arranged in a circular array with a plurality of circular grooves 18 matched with the end of the threaded handle 15, the end of the threaded handle 15 can be clamped into the circular groove 18, thereby fixing the driving rod 13 to prevent the driving rod 13 from rotating during shearing. At this time, the through hole on the fixed block 11 is connected with the through hole on the tool holder 2, and then the latch 12 is inserted into the through hole, realizing the fixation of the turnover frame 4, avoiding the movement of the turnover frame 4 during shearing, ensuring the stability and safety of the shearing process. Start the hydraulic cylinder body 1, which is the power core component of the entire hydraulic shear. The hydraulic system inside the hydraulic cylinder body 1 drives the moving knife 5 to move towards the fixed knife 6. The moving knife 5 is driven by the hydraulic power and cooperates with the fixed knife 6 to shear the ring chain in a tight state. Since the protective cover 3 is installed on the two long rods 19 on the outer wall of the turnover frame 4 by using a translucent high-strength material, it can effectively protect the safety of the operator without affecting the observation of the shearing operation.

Claims

1. A ring chain hydraulic shear comprising a hydraulic cylinder block (1), characterized in that: The outer wall of the hydraulic cylinder body (1) is fixedly connected with a tool holder (2), and the inside of the hydraulic cylinder body (1) is provided with a moving tool (5) mounted, the outer wall of the tool holder (2) is fixedly connected with a fixed tool (6) matched with the moving tool (5), the outer walls of the two sides of the tool holder (2) are fixedly connected with circular shafts (10), and the tool holder (2) is movably connected with a turnover frame (4) through the circular shafts (10), the outer walls of the two sides of the turnover frame (4) are both provided with sliding grooves (9), and the outer wall of the sliding groove (9) is movably connected with a sliding block (8), the bottom outer wall of the sliding block (8) is fixedly connected with a movable hook (7), and the two movable hooks (7) are symmetrically distributed on the two sides of the moving tool (5) and the fixed tool (6), and the top outer wall of the turnover frame (4) is provided with a driving assembly.

2. A hydraulic ring chain shear according to claim 1 wherein: The driving assembly comprises a driving rod (13), the driving rod (13) is rotatably connected with the top outer wall of the tool holder (2), the outer wall of the sliding block (8) is fixedly connected with a connecting column (17), and the driving rod (13) and the two connecting columns (17) are respectively provided with connecting rods (16).

3. A hydraulic ring chain shear according to claim 2, wherein: The outer wall of the driving rod (13) is fixedly connected with a rotating rod (14), and the outer wall of the rotating rod (14) is threadedly connected with a threaded handle (15), the outer wall of the tool holder (2) on one side of the driving rod (13) is circularly and arrayedly provided with a plurality of circular grooves (18), and the plurality of circular grooves (18) are matched with the threaded handle (15).

4. A hydraulic ring chain shear according to claim 1 wherein: The outer wall of the turnover frame (4) is fixedly connected with a fixed block (11), and the outer wall of the fixed block (11) is provided with a bolt (12) mounted.

5. A hydraulic ring chain shear as claimed in claim 1 wherein: The side outer wall of the turnover frame (4) is fixedly connected with two long rods (19), and the two long rods (19) are jointly provided with a protective cover (3).

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