Mining chain length measuring machine

Abstract

The utility model provides a mining chain length measuring machine which comprises a supporting frame and a movable end fixing frame installed on the front section of the supporting frame. The oil cylinder piston rod moving end block, the hydraulic oil cylinder and the plug pin are installed on the middle section of the supporting frame, and the oil cylinder piston rod moving end block is connected to the front portion of the hydraulic oil cylinder through the plug pin; the oil cylinder piston rod moving end block is arranged on the support frame, the pull seat fixing end is arranged on the rear section of the support frame, a chain of which the length needs to be measured is arranged between the oil cylinder piston rod moving end block and the pull seat fixing end, and the hydraulic oil cylinder drives the oil cylinder piston rod moving end block to move to finish the stretching work of the measured chain, so that the length of the measured chain is measured. Compared with the prior art, the mining chain length measuring machine has various characteristics but still has defects, and according to the mining chain length measuring machine, through the pull block which can be adjusted up and down between the base and the connecting rod, the accuracy of measuring the pairing length of the chains is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain length measurement, in particular to a chain length measuring machine for mining. Background Art

[0002] As an important mechanical transmission and traction component, chain has been widely used in various fields. Therefore, accurate measurement of chain length becomes very important, which is directly related to product quality and production efficiency.

[0003] Traditional chain length measurement methods often have many inconveniences, such as the difficulty in fixing the chain during measurement and low measurement accuracy. These problems not only affect the product qualification rate and increase production costs, but also require repeated zeroing when measuring the same length, which reduces work efficiency and is not conducive to subsequent matching work. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that a chain is difficult to fix and the influence of the horizontal position of the chain on the measurement accuracy cannot be avoided when measuring the chain.

[0005] In order to achieve the above-mentioned purpose, the present application proposes a mining chain length measuring machine, including: a cutter body, a cutter handle, a clamp, a cutter head mounting groove, a positioning groove, a positioning hole and a special cutter. The cutter body is in the shape of an outward-retracted trumpet, and the cutter body includes an open end, a contraction part and an end. The open end of the cutter body is installed on the cutter handle, and the round pancake-shaped clamp is installed at the junction of the cutter body and the cutter handle. The pull block and the pin fix the measured chain to prevent the chain from detaching during the length measurement pairing.

[0006] In order to better install and fix the cylinder part, the mobile end fixing frame of the present application is installed on the upper surface of the support frame, and the mobile end fixing frame includes: a main bracket; a cylinder back plate installed on the back of the main bracket, and the main bracket and the cylinder back plate are provided with oblong holes, and one end of the cylinder connecting shaft passes through the oblong hole, and the cylinder back plate and the cylinder connecting shaft are fixed to the main bracket by a square nut; a fixing frame pull block is welded at the rear end of the cylinder connecting shaft. As an improvement of the above-mentioned base of the present application, the cylinder back plate can adjust the vertical height of the cylinder from the ground, and at the same time fix the cylinder position together with the cylinder connecting shaft, and a fixing frame pull block is welded at the rear end of the cylinder connecting shaft.

[0007] The movable end block of the oil cylinder piston rod comprises: a movable end block connecting shaft; an oil cylinder pull block welded to the rear end of the movable end block connecting shaft; a roller is installed on each side of the oil cylinder pull block, and the contact surface of the roller is connected to the upper end surface of the support frame. As an improvement of the above-mentioned base of the present application, one end of the measured chain is fixed to the oil cylinder pull block by a pin, and the rotation of the roller drives the movable end block of the oil cylinder piston rod to follow the piston rod to move synchronously, thereby completing the stretching and contraction of the measured chain.

[0008] The hydraulic cylinder of the cylinder part has a fixed plate welded on one side close to the mobile end fixed frame, and a stud is welded on one side close to the mobile end block of the cylinder piston rod. The fixed plate has an opening, and the pin passes through the openings on the fixed frame pull block and the fixed plate to fix the end of the hydraulic cylinder. The stud welded at the rear end of the hydraulic cylinder is screwed and connected with the threaded hole on the mobile end block of the cylinder piston rod to fix the other end of the hydraulic cylinder.

[0009] The fixed end of the pull seat includes: a base and a base pull block installed at the front of the base, and a screw is welded to one end of the base pull block close to the side wall of the base; a positioning hole for fixing the base pull block is provided on the side wall of the base, and the base pull block and the base are fixedly connected by tightening the screw with a nut at the positioning hole.

[0010] As an improvement of the above-mentioned base of the present application, the opening on the base is a vertical oblong, and the center of the opening maintains the same vertical position as the center of the connecting rod installed on the base. This arrangement can ensure that the chain remains vertical in space after stretching, avoiding deviation of the chain in the vertical position, and at the same time can realize up and down adjustment between the base and the connecting rod, ensuring a horizontal error of ±2mm between the moving end and the fixed end.

[0011] The beneficial effects of this application are:

[0012] 1. A mining chain length measuring machine of the present application fixes the measured chain between the movable end block of the cylinder piston rod and the fixed end of the pull seat by a pin, and the pin fixing method can not only ensure that the mining chain will not suddenly fall off or move during the measurement process, thereby reducing the risk of injury to the operator, but also can select pins of different specifications and sizes according to different types and specifications of mining chains, thereby improving the versatility of the length measuring machine.

[0013] 2. The chain to be measured is placed on the support frame before being stretched to avoid ground damage caused by movement of the chain during the measurement process.

[0014] 3. The mining chain length measuring machine of the present application can ensure that the center axis of the cylinder and the center line of the pull seat and pull block at the fixed end are in the same horizontal position when measuring the chain length by setting a pull seat and pull block with adjustable upper and lower positions, thereby ensuring that the horizontal position error of the chain when measuring the length is within ±2mm.

[0015] 4. The mobile terminal fixing bracket of the present application can adjust the vertical height of the cylinder back plate by cooperating with the oblong hole and square nut set on the main bracket, and further adjust the appropriate installation position according to different models of hydraulic cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of a mining chain length measuring machine in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the mobile terminal fixing frame in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the movable end block of the oil cylinder piston rod in the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed end of the pull seat in the embodiment of the present application;

[0021] Description of reference numerals:

[0022] 1. Support frame; 11. Front section; 12. Middle section; 13. Back section;

[0023] 2. Mobile end fixing frame; 21. Main bracket; 22. Cylinder back plate; 23. Cylinder connecting shaft; 24. Fixing frame pull block;

[0024] 3. Cylinder piston rod moving end block; 31. Cylinder pull block; 32. Roller;

[0025] 4. Cylinder part; 41. Hydraulic cylinder; 42. Fixing plate; 43. Stud;

[0026] 5. Latch;

[0027] 6. Pull seat fixed end; 61. Base; 62. Pull seat pull block; 63. Connecting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the attached Figures 1 to 4 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figures 1 to 4The present invention illustrates a mining chain length measuring machine, which includes: a support frame 1; a mobile end fixed frame 2 installed at the front section 11 of the support frame 1; a cylinder piston rod mobile end block 3 and a cylinder part 4 installed at the middle section 12 of the support frame 1, the cylinder piston rod mobile end block 3 is hinged to the end of the cylinder part 4 through a latch 5, and the other end of the cylinder part 4 is hinged to the mobile end fixed frame 2; and a pull seat fixed end 6 installed at the rear section 13 of the support frame 1, the pull block and the latch 5 fix the measured chain to prevent the chain from being separated during the length measurement pairing. Optionally, the latch 5 can be selected from different types and specifications according to chains of different sizes to adapt to mining chains of different types and specifications.

[0030] Continue to refer to Figure 2 The mobile end fixing frame 2 includes: a main bracket 21; a cylinder back plate 22 installed on the back of the main bracket 21, and oblong holes are opened on the main bracket 21 and the cylinder back plate 22. One end of the cylinder connecting shaft 23 passes through the oblong hole, and the cylinder back plate 22 and the cylinder connecting shaft 23 are fixed to the main bracket 21 by a square nut; a fixing frame pull block 24 is welded to the rear end of the cylinder connecting shaft 23. As an improvement of the above-mentioned base of the present application, the cylinder back plate can adjust the vertical height of the cylinder from the ground, and fix the position of the cylinder together with the cylinder connecting shaft.

[0031] Continue to refer to Figure 3 The cylinder piston rod moving end block 3 includes: a cylinder pull block 31; a roller 32 is installed on each side of the cylinder pull block 31.

[0032] The roller contact surface of the roller 32 is connected to the upper end surface of the support frame 1 .

[0033] As an improvement of the above-mentioned base of the present application, the cylinder piston rod moving end block 3 is the moving end in the mining chain length measuring machine. The main moving component is the roller 31. One end of the measured chain is fixed to the cylinder pull block by the pin 5. When the hydraulic cylinder 41 starts to work, the piston rod moves forward or backward, and the rotation of the roller 32 drives the cylinder piston rod moving end block to move synchronously, thereby completing the stretching and contraction of the measured chain.

[0034] The hydraulic cylinder 41 of the cylinder part 4 has a fixing plate 42 welded to one side close to the mobile end fixing frame 2 , and a stud 43 welded to one side close to the mobile end block 3 of the cylinder piston rod.

[0035] There is an opening on the fixing plate 42, and the latch 5 passes through the opening on the fixing frame pull block 24 and the fixing plate 42, thereby fixing the end of the hydraulic cylinder 41, and the stud 43 welded to the rear end of the hydraulic cylinder 41 is screwed and connected with the threaded hole on the cylinder piston rod moving end block 3, thereby fixing the other end of the hydraulic cylinder 41.

[0036] Continue to refer to Figure 4 The pull seat fixed end 6 includes: a base 61 and a base pull block 62 installed on the front of the base 61, and a screw 63 is welded to one end of the side wall of the base pull block 62 close to the base 61; a positioning hole for fixing the base pull block 62 is provided on the side wall of the base 61, and the base pull block 62 and the base 61 are fixedly connected by tightening the screw 63 at the positioning hole with a nut. As an improvement of the above-mentioned base of the present application, the up and down adjustment between the base 61 and the connecting rod 63 is achieved by a pull block device. When adjustment is required, the square nut is rotated to reduce the fastening force between the base 61 and the square nut, and the connecting rod 63 is moved up and down. After adjusting to the appropriate position, the square nut is rotated to complete the fixation of the base pull block 62, thereby ensuring a horizontal error of ±2mm between the moving end and the fixed end.

[0037] The opening on the base 61 is a vertical oblong. The center of the opening and the center of the connecting rod 63 installed on the base maintain the same vertical position. This arrangement can ensure that the chain remains vertical in space after stretching, avoiding deviation of the chain in the vertical position.

[0038] As an improvement of the above-mentioned base of the present application, in order to solve the technical problems that the mining chain has poor tensile stability during length measurement and is prone to chain breakage due to excessive tensile force, an electronic control system is set in the cylinder part, and the electronic control system controls the hydraulic system by the PLC to control the cylinder pressure. The moving end block of the cylinder piston rod is hard-connected to the displacement sensor to provide real-time feedback to the PLC. After reaching the preset pressure, the length measuring machine stops contracting, and the PLC measured data is fed back to the operator through the digital display screen

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mining chain length measuring machine, characterized in that: include: A support frame (1); a mobile end fixed frame (2) installed at the front section (11) of the support frame (1); a cylinder piston rod mobile end block (3) and a cylinder part (4) installed at the middle section (12) of the support frame (1), the cylinder piston rod mobile end block (3) being hinged to the end of the cylinder part (4) through a latch (5), and the other end of the cylinder part (4) being hinged to the mobile end fixed frame (2); and a pull seat fixed end (6) installed at the rear section (13) of the support frame (1).

2. A mining chain length measuring machine according to claim 1, characterized in that: The mobile end fixing frame (2) comprises: a main frame (21); a cylinder back plate (22) mounted on the back of the main frame (21); an oblong hole is formed on the main frame (21) and the cylinder back plate (22); one end of the cylinder connecting shaft (23) passes through the oblong hole, and the cylinder back plate (22) and the cylinder connecting shaft (23) are fixed to the main frame (21) by a square nut; and a fixing frame pull block (24) is welded to the rear end of the cylinder connecting shaft (23).

3. A mining chain length measuring machine according to claim 1, characterized in that: The oil cylinder piston rod movable end block (3) comprises: an oil cylinder pull block (31); a roller (32) is respectively installed on both sides of the oil cylinder pull block (31).

4. A mining chain length measuring machine according to claim 3, characterized in that: The roller contact surface of the roller (32) is connected to the upper end surface of the support frame (1).

5. A mining chain length measuring machine according to claim 1, characterized in that: The hydraulic cylinder (41) of the cylinder part (4) has a fixing plate (42) welded to one side close to the movable end fixing frame (2), and a stud (43) welded to one side close to the movable end block (3) of the cylinder piston rod.

6. A mining chain length measuring machine according to claim 5, characterized in that: The fixing plate (42) has an opening, and the latch (5) passes through the openings on the fixing frame pull block (24) and the fixing plate (42), thereby fixing the end of the hydraulic cylinder (41), and the stud (43) welded to the rear end of the hydraulic cylinder (41) is screwed and connected to the threaded hole on the movable end block (3) of the cylinder piston rod, thereby fixing the other end of the hydraulic cylinder (41).

7. A mining chain length measuring machine according to claim 1, characterized in that: The pull seat fixed end (6) comprises: a base (61) and a base pull block (62) mounted on the front of the base (61); a screw rod (63) is welded to one end of the side wall of the base pull block (62) close to the base (61); a positioning hole for fixing the base pull block (62) is provided on the side wall of the base (61); the base pull block (62) and the base (61) are fixedly connected by tightening the screw rod (63) at the positioning hole with a nut.

8. A mining chain length measuring machine according to claim 7, characterized in that: The positioning hole on the base (61) is in the shape of a vertical oblong.

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