Sintering machine trolley shaft thread trimming device

Abstract

The utility model discloses a sintering machine trolley axle thread trimming device, belongs to the technical field of sintering machine trolley maintenance, and solves the problem that an existing thread trimming device is difficult to perform online trimming. The thread trimming tool comprises a large concentric sleeve, a small concentric sleeve, a trimming tool sleeve seat and a thread trimming tool, the large concentric sleeve is sleeved on a bearing installation position of a trolley shaft, the trimming tool sleeve seat is sleeved on the end portion of the trolley shaft, and a rotating assembly used for connecting the large concentric sleeve and the trimming tool sleeve seat and used for rotating the trimming tool sleeve seat is movably arranged between the large concentric sleeve and the trimming tool sleeve seat. The thread trimming cutter is detachably installed in the trimming cutter sleeve seat, the small concentric sleeve is detachably installed on the side, away from the large concentric sleeve, of the trimming cutter sleeve seat, and the large concentric sleeve and the small concentric sleeve are each internally provided with a plurality of elastic mechanisms capable of making contact with a trolley shaft. According to the sintering machine trolley axle thread trimming device, on-line rapid trimming of the damaged sintering machine trolley axle thread can be achieved, the overhauling efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering machine trolley maintenance, and more specifically, to a sintering machine trolley axle thread trimming device. Background Art

[0002] When repairing the sintering machine trolley, the trolley shaft thread is often damaged due to improper disassembly and assembly, which makes it difficult or impossible to install the locking nut. At this time, the trolley shaft thread needs to be trimmed to ensure smooth repair.

[0003] After searching, it was found that the existing patent number is: CN102059410B, which discloses a shaft end external thread trimming device, which includes a machine tool spindle, bolts, connecting sleeves, tensioning bolts, safety pins, housings, die and guide sleeves. The connecting sleeves of the machine tool spindle and the outer sleeve are connected into one by bolts, the upward tapered shaft of the housing is inserted into the inner hole of the machine tool spindle for positioning and connection, and a coaxial stepped blind hole is arranged in the downward flange of the housing. The housing and the connecting sleeve are axially connected by tensioning bolts to form a linkage structure. The die built into the housing is axially restricted by the guide sleeve, and the safety pin longitudinally screwed into the housing is inserted into the crescent hole of the die with the small shaft end to form an overload protection structure. The present invention uses the spindle drive of a drilling machine or a lathe to realize the trimming of the external thread of the shaft end of the workpiece with a die, which has the remarkable characteristics of being economical and practical, labor-saving in operation, stable in quality, and high in trimming efficiency. It is particularly suitable for trimming the external thread of the shaft end in mass production.

[0004] However, during the implementation of the above-mentioned existing dressing device, the shaft with damaged threads needs to be removed from the production line, fixed on a lathe or a drilling machine, and driven by a spindle and a die to repair the damaged threads. During the maintenance of the sintering machine trolley, the axle needs to be removed and the threads need to be trimmed, which is time-consuming and labor-intensive, greatly reducing the maintenance efficiency.

[0005] Therefore, it is urgent to design a sintering machine axle thread dressing device to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a sintering machine trolley axle thread trimming device in view of the above-mentioned deficiencies in the prior art, which can realize online rapid trimming of sintering machine trolley axle thread damage, improve maintenance efficiency and reduce labor intensity.

[0007] The technical solution of the utility model is as follows: a sintering machine trolley shaft thread trimming device, comprising a large concentric sleeve, a small concentric sleeve, a trimming knife sleeve seat and a thread trimming knife, the large concentric sleeve is arranged on the bearing installation position of the trolley shaft, the trimming knife sleeve seat is arranged on the end of the trolley shaft, a rotating component for rotating the trimming knife sleeve seat is movably arranged between the large concentric sleeve and the trimming knife sleeve seat to connect the two, the thread trimming knife is detachably installed in the trimming knife sleeve seat, the small concentric sleeve is detachably installed on the side of the trimming knife sleeve seat away from the large concentric sleeve, and a plurality of elastic mechanisms that can contact the trolley shaft are provided in the large concentric sleeve and the small concentric sleeve.

[0008] As a further improvement, the rotating assembly includes at least two connecting rods and handles, the connecting rods are L-shaped rectangular rods with a rectangular cross-section, one end of each of the connecting rods is slidably inserted in a rectangular hole opened on one side of the large concentric sleeve, and the other end of each of the connecting rods is fixedly connected to a handle, and the right angle of the connecting rod is slidably inserted in a limit groove opened on the outer wall of the trimming tool sleeve seat.

[0009] Furthermore, a positioning groove is formed on the outer wall of the thread trimming tool, and a locking screw is threadedly connected to the outer wall of the trimming tool sleeve seat, and one end of the locking screw passes through the trimming tool sleeve seat and is movably inserted in the positioning groove.

[0010] Furthermore, the thread trimming tool is a die.

[0011] Furthermore, at least two clamping columns are provided on one side of the small concentric sleeve, and correspondingly, at least two clamping grooves are opened on one side of the trimming tool sleeve seat, and the clamping columns are inserted into the clamping grooves one by one.

[0012] Furthermore, the plurality of elastic mechanisms are evenly distributed, each of the elastic mechanisms comprises a spring, a ball and a slide seat, the large concentric sleeve and the small concentric sleeve are each provided with a plurality of evenly distributed slide grooves, the slide grooves extend to the inner walls of the large concentric sleeve and the small concentric sleeve, the slide seat is slidably installed in the slide groove, the spring is located in the slide groove, and the two ends of the spring are respectively connected to the bottom of the slide groove and the slide seat, the ball is movably embedded in one end of the slide seat away from the spring, the spring pushes the end of the ball out of the outside of the slide groove in a natural state, and the slide seat is located in the slide groove.

[0013] Furthermore, the outer walls of the large concentric sleeve and the small concentric sleeve are both provided with through-going notches.

[0014] Beneficial Effects

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model discloses a split type dressing device for a sintering machine trolley shaft, which is composed of a large concentric sleeve, a small concentric sleeve, a dressing knife sleeve seat and a thread dressing knife. When in use, the large concentric sleeve is first inserted into the bearing installation position of the trolley shaft, and then the rotating assembly is inserted into the large concentric sleeve. Then the dressing knife sleeve seat equipped with the thread dressing knife is sleeved on the end of the trolley shaft, so that the connecting rod of the rotating assembly is clamped into the dressing knife sleeve seat, and then the small concentric sleeve is clamped on one side of the dressing knife sleeve seat to form a mode in which the dressing knife sleeve seat and the thread dressing knife, the large concentric sleeve, the small concentric sleeve and the trolley shaft are coaxially installed. Finally, the rotating assembly is rotated, and the thread dressing knife rotates around the axis line of the trolley shaft under the common guidance of the two concentric sleeves to dress the thread, so that the sintering machine trolley shaft can be quickly dressed online for the thread damage, without disassembling the trolley shaft, effectively improving the maintenance efficiency and reducing the labor intensity.

[0017] 2. In the sintering machine trolley shaft thread trimming device of the utility model, the two concentric sleeves and the trolley shaft are in contact with each other through an elastic mechanism composed of balls and springs, which can reduce the friction between the two concentric sleeves and the trolley shaft, making the two concentric sleeves rotate more smoothly, reducing the resistance of the trimming tool sleeve seat and the thread trimming tool, and further reducing the labor intensity.

[0018] 3. The thread trimming device for the sintering machine trolley shaft of the utility model has a detachable connection between the large concentric sleeve, the small concentric sleeve, the trimming knife sleeve seat, the thread trimming knife, and the rotating assembly. Different structural components can be replaced at will according to the diameter of the trolley shaft, which is more convenient to use and also more convenient to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model when it is used;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0021] Figure 3 It is an enlarged schematic diagram of the side view structure of the large concentric sleeve in the utility model;

[0022] Figure 4 It is an enlarged schematic diagram of the side view structure of the connection between the trimming tool sleeve and the thread trimming tool in the utility model;

[0023] Figure 5 It is an enlarged schematic diagram of the side view structure of the small and medium concentric sleeves of the utility model.

[0024] Among them: 1-large concentric sleeve, 2-small concentric sleeve, 3-dressing tool sleeve seat, 4-threaded dressing tool, 5-axle, 6-connecting rod, 7-handle, 8-rectangular hole, 9-limiting groove, 10-positioning groove, 11-locking screw, 12-clamp column, 13-spring, 14-ball, 15-slide seat, 16-slide groove. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0026] See also Figure 1-5 The utility model discloses a thread trimming device for a sintering machine trolley shaft, comprising a large concentric sleeve 1, a small concentric sleeve 2, a trimming knife sleeve seat 3 and a thread trimming knife 4, wherein the large concentric sleeve 1, the small concentric sleeve 2, the trimming knife sleeve seat 3 and the thread trimming knife 4 are all in a ring shape, the large concentric sleeve 1 is sleeved on the bearing mounting position of the trolley shaft 5, the trimming knife sleeve seat 3 is sleeved on the end of the trolley shaft 5, and a rotating component for rotating the trimming knife sleeve seat 3 is movably arranged between the large concentric sleeve 1 and the trimming knife sleeve seat 3 to connect the two, the thread trimming knife 4 is detachably installed in the trimming knife sleeve seat 3, and the small concentric sleeve 2 is detachably installed on the side of the trimming knife sleeve seat 3 away from the large concentric sleeve 1, and a plurality of elastic mechanisms that can contact the trolley shaft 5 are arranged in the large concentric sleeve 1 and the small concentric sleeve 2. Specifically, the rotating assembly includes at least two connecting rods 6 and handles 7, wherein the connecting rod 6 is an L-shaped rectangular rod with a rectangular cross-section, one end of each connecting rod 6 is slidably inserted in a rectangular hole 8 opened on one side of the large concentric sleeve 1, so that the connecting rod 6 can drive the large concentric sleeve 1 to rotate, and the other end of each connecting rod 6 is fixedly connected to a handle 7 for the convenience of applying force, and the right angle of the connecting rod 6 is slidably inserted in a limiting groove 9 opened on the outer wall of the trimming tool sleeve seat 3, so as to play the role of linking the trimming tool sleeve seat 3.

[0027] The utility model discloses a split type dressing device for a sintering machine trolley shaft, which is composed of a large concentric sleeve 1, a small concentric sleeve 2, a dressing knife sleeve seat 3 and a thread dressing knife 4. When in use, the large concentric sleeve 1 is first inserted into the bearing installation position of the trolley shaft 5, and then the rotating assembly is inserted into the large concentric sleeve 1, and then the dressing knife sleeve seat 3 equipped with the thread dressing knife 4 is sleeved on the end of the trolley shaft 5, so that the connecting rod 6 of the rotating assembly is clamped into the dressing knife sleeve seat 3, and then the connecting rod 6 of the rotating assembly is clamped into the dressing knife sleeve seat 3. Then, the small concentric sleeve 2 is clamped on one side of the dressing knife sleeve seat 3, forming a way that the dressing knife sleeve seat 3 and the thread dressing knife 4, the large concentric sleeve 1, the small concentric sleeve 2 and the trolley shaft 5 are coaxially installed, and finally the rotating assembly is rotated. Under the common guidance of the two concentric sleeves, the thread dressing knife 4 rotates around the axis line of the trolley shaft to dress the thread, which can realize online rapid dressing of the thread damage of the sintering machine trolley axle without disassembling the trolley shaft, effectively improving the maintenance efficiency and reducing the labor intensity.

[0028] Preferably, a positioning groove 10 is formed on the outer wall of the thread trimming cutter 4, and a locking screw 11 is threadedly connected to the outer wall of the trimming cutter sleeve seat 3, and one end of the locking screw 11 passes through the trimming cutter sleeve seat 3 and is movably inserted into the positioning groove 10. During installation, the thread trimming cutter 4 is inserted into the trimming cutter sleeve seat 3, and then the locking screw 11 is rotated to insert its end into the positioning groove 10, so that the thread trimming cutter 4 can be locked and detachably installed. Furthermore, the thread trimming cutter 4 is a die, which can be directly purchased from the existing market.

[0029] Preferably, at least two clamping columns 12 are provided on one side of the small concentric sleeve 2, and correspondingly, at least two clamping grooves are provided on one side of the trimming tool sleeve seat 3, and the clamping columns 12 and the clamping grooves are evenly distributed, and the clamping columns 12 are plugged into the clamping grooves one by one. During installation, the small concentric sleeve 2 is inserted along the trolley shaft 5, and the clamping columns 12 are inserted into the clamping grooves to realize the coaxial installation of the trimming tool sleeve seat 3 and the thread trimming tool 4, the large concentric sleeve 1, and the small concentric sleeve 2 with the trolley shaft 5.

[0030] The utility model discloses a sintering machine trolley shaft thread trimming device, wherein the large concentric sleeve 1, the small concentric sleeve 2, the trimming knife sleeve seat 3, the thread trimming knife 4 and the rotating assembly are all connected in a detachable manner, and different structural components can be replaced at will according to the diameter of the trolley shaft, which is more convenient to use and also more convenient to carry and store.

[0031] Preferably, multiple elastic mechanisms are evenly distributed, and each elastic mechanism includes a spring 13, a ball 14, and a slide 15. Among them, multiple evenly distributed slide grooves 16 are provided in the large concentric sleeve 1 and the small concentric sleeve 2. The slide grooves 16 are radially distributed and extend to the inner walls of the large concentric sleeve 1 and the small concentric sleeve 2. The slide 15 is slidably installed in the slide groove 16. The spring 13 is located in the slide groove 16, and the two ends of the spring 13 are respectively connected to the bottom of the slide groove 16 and the slide 15. The ball 14 is movably embedded in the end of the slide 15 away from the spring 13. Specifically, two-thirds of the volume of the ball 14 is movably embedded in the slide 15, leaving only one-third of the volume outside the slide 15 to prevent the ball 14 from falling off. The spring 13 pushes the end of the ball 14 out of the outside of the slide groove 16 in a natural state, and the slide 15 is located in the slide groove 16 to prevent the slide 15 from protruding and causing interference.

[0032] In the sintering machine trolley shaft thread trimming device of this embodiment, the two concentric sleeves and the trolley shaft 5 are in contact with each other through an elastic mechanism composed of balls 14 and springs 13, which can reduce the friction between the two concentric sleeves and the trolley shaft, making the two concentric sleeves rotate more smoothly, reducing the resistance of the trimming tool sleeve seat and the thread trimming tool, and further reducing labor intensity.

[0033] Preferably, the outer walls of the large concentric sleeve 1 and the small concentric sleeve 2 are provided with through-going notches, so that when they become stuck, the concentric sleeves can be opened so as to be removed from the trolley shaft.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A thread trimming device for a sintering machine axle, characterized in that: The invention comprises a large concentric sleeve (1), a small concentric sleeve (2), a trimming knife sleeve seat (3) and a thread trimming knife (4); the large concentric sleeve (1) is sleeved on the bearing installation position of the trolley shaft (5); the trimming knife sleeve seat (3) is sleeved on the end of the trolley shaft (5); a rotating assembly for rotating the trimming knife sleeve seat (3) is movably arranged between the large concentric sleeve (1) and the trimming knife sleeve seat (3); the thread trimming knife (4) is detachably installed in the trimming knife sleeve seat (3); the small concentric sleeve (2) is detachably installed on the side of the trimming knife sleeve seat (3) away from the large concentric sleeve (1); and a plurality of elastic mechanisms that can contact the trolley shaft (5) are provided in the large concentric sleeve (1) and the small concentric sleeve (2).

2. The sintering machine axle thread trimming device according to claim 1, characterized in that: The rotating assembly comprises at least two connecting rods (6) and a handle (7), wherein the connecting rod (6) is an L-shaped rectangular rod with a rectangular cross-section, one end of each connecting rod (6) is slidably inserted into a rectangular hole (8) provided on one side of the large concentric sleeve (1), and the other end of each connecting rod (6) is fixedly connected to a handle (7), and the right angle of the connecting rod (6) is slidably inserted into a limiting groove (9) provided on the outer wall of the trimming tool sleeve seat (3).

3. The sintering machine axle thread trimming device according to claim 1, characterized in that: The outer wall of the thread trimming tool (4) is provided with a positioning groove (10), and the outer wall of the trimming tool sleeve seat (3) is threadedly connected with a locking screw (11), and one end of the locking screw (11) passes through the trimming tool sleeve seat (3) and is movably inserted into the positioning groove (10).

4. The sintering machine axle thread trimming device according to claim 3, characterized in that: The thread trimming tool (4) is a die.

5. The sintering machine axle thread trimming device according to claim 1, characterized in that: At least two clamping columns (12) are provided on one side of the small concentric sleeve (2), and correspondingly, at least two clamping grooves are opened on one side of the trimming knife sleeve seat (3), and the clamping columns (12) are inserted into the clamping grooves one by one.

6. A sintering machine axle thread trimming device according to any one of claims 1 to 5, characterized in that: The plurality of elastic mechanisms are evenly distributed, and each of the elastic mechanisms comprises a spring (13), a ball (14) and a slide seat (15). The large concentric sleeve (1) and the small concentric sleeve (2) are each provided with a plurality of evenly distributed slide grooves (16). The slide grooves (16) extend to the inner walls of the large concentric sleeve (1) and the small concentric sleeve (2). The slide seat (15) is slidably installed in the slide grooves (16). The spring (13) is located in the slide grooves (16), and the two ends of the spring (13) are respectively connected to the bottom of the slide groove (16) and the slide seat (15). The ball (14) is movably embedded in one end of the slide seat (15) away from the spring (13). The spring (13) pushes the end of the ball (14) out of the outside of the slide groove (16) in a natural state, and the slide seat (15) is located in the slide groove (16).

7. The sintering machine axle thread trimming device according to claim 6, characterized in that: The outer walls of the large concentric sleeve (1) and the small concentric sleeve (2) are both provided with penetrating notches.

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