Auxiliary speed measuring device for main shaft of steel cord stranding machine

Abstract

The utility model discloses an auxiliary speed measuring device for a main shaft of a steel cord stranding machine, which relates to the technical field of steel cord production equipment and comprises a transmission case and a mounting frame mounted on the transmission case, an encoder is mounted on the mounting frame, and the transmission case is further provided with an adjusting mechanism for adjusting the mounting position of the encoder. The adjusting mechanism comprises a side plate, a screw rod and a guide groove plate, the side plate is transversely fixed on one side of the top of the transmission case, the guide groove plate is longitudinally fixed on the other side of the top of the transmission case, one end of the guide groove plate is fixedly connected with the side plate, and the screw rod is longitudinally arranged in the guide groove plate. According to the utility model, the speed measurement transmission belt can be conveniently and rapidly installed, the tension degree of the test transmission belt can be adjusted during installation, good contact between the transmission belt and a belt wheel is ensured, and slipping is prevented, so that the transmission efficiency and the stability of a system are maintained, the speed measurement accuracy is ensured, and measurement errors caused by improper tension degree are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel cord production equipment technical field, concretely relates to the auxiliary speed measuring device for steel cord stranding machine main shaft. BACKGROUND

[0002] Steel cord is a kind of framework material for tire, and needs to go through a series of processes such as rough drawing, medium drawing, medium drawing heat treatment, electroplating, wet drawing and stranding in the production process of steel cord. Among them, steel wire is twisted into steel cord by stranding machine. In the twisting process, the steel wire is driven by the main shaft of the stranding machine to make uniform circular motion, and is also driven by the traction device to advance uniformly, so that the steel wire is in the form of cylindrical helical line in the strand and cord. The steel wire follows the guide tube, passes through the pre-deformer to the twisting point to be twisted into a strand, and then is guided by the traction wheel, passes through the straightener and is wound on the take-up I beam.

[0003] At present, in the twisting process of steel cord, the steel cord stranding machine equipment is old, the main shaft of the stranding machine lacks speed detection device, it is difficult to detect the speed of the main shaft in real time, and further lacks feedback to the speed regulation of the main shaft, so the situation of main shaft overrunning is easy to occur. The speed fluctuation of the main shaft is also easy to cause the fault of steel wire jumping, so that the steel wire is difficult to be normally unwound, and the twisting speed of the steel cord is affected. In addition, the rear end space of the main shaft of the existing steel cord stranding machine is small, and it is difficult to install the speed measuring device.

[0004] The utility model discloses a kind of auxiliary speed measuring devices for steel cord stranding machine, and the auxiliary speed measuring device includes mounting bracket, encoder, first speed measuring pulley, second speed measuring pulley, speed measuring transmission belt and shaft. Mounting bracket is located above the transmission case of steel cord stranding machine. Mounting bracket is connected with the box body of transmission case. Encoder is fixed on mounting bracket. Shaft is connected with mounting bracket by bearing. The input end of encoder is connected with shaft. First speed measuring pulley is connected with the main shaft of steel cord stranding machine. Second speed measuring pulley is connected with shaft. The axis of shaft is parallel to the axis of main shaft. First speed measuring pulley is connected with second speed measuring pulley by speed measuring transmission belt. The device optimizes the assembly structure of encoder in the narrow space of main shaft tail end, facilitates the speed of main shaft to be obtained by encoder, and keeps the stability of the speed of main shaft.

[0005] The above-mentioned patent still has the following problems: the patent only locks the adjusting plate and the box body by tightening the fastening screw, and the stability is poor. When the main shaft and the shaft are connected, the transmission belt needs to be respectively sleeved on the second speed measuring pulley and the first speed measuring pulley. At this time, the mounting bracket is longitudinally moved and the position is fixed, which is not convenient for the quick installation of the transmission belt. In the subsequent work, it is also not convenient to adjust the tightness of the transmission belt, thereby affecting the efficiency of the speed measuring work. SUMMARY

[0006] The utility model discloses a purpose lies in providing for the auxiliary speed measuring device of steel cord stranding machine main shaft, to solve above -mentioned problem.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] The auxiliary speed measuring device for steel cord stranding machine main shaft, including transmission case and installing the mounting bracket on transmission case, install the encoder on the mounting bracket, transmission case still is provided with the adjusting mechanism for adjusting the installation position of encoder, the adjusting mechanism includes side plate, screw rod and guide slot plate, the side plate is fixed in transmission case top one side transversely, the guide slot plate is fixed in the other side of transmission case top longitudinally, and one end of guide slot plate is fixedly connected with side plate, the screw rod is longitudinally arranged in the guide slot plate, and one end of screw rod penetrates through side plate and is rotatably connected with side plate through bearing, the bottom of mounting bracket is fixedly connected with fixed plate, the bottom of fixed plate is fixedly connected with sliding block, the inside of sliding block is provided with thread groove, the other end of screw rod extends to thread groove and is threadedly connected with thread groove, the top of guide slot plate is provided with guide sliding slot on both sides, a plurality of thread holes are formed on both sides of fixed plate along the length direction of fixed plate, a bolt is threadedly connected on each thread hole, and all bolts are slidably connected with the corresponding guide sliding slot, and a limiting piece for limiting bolt movement is arranged in both guide sliding slots.

[0009] As a preferred scheme of the utility model, the limiting piece includes a plurality of rotating discs evenly arranged along the length direction of the guide sliding slot, a plurality of circular through-slots are evenly formed in the guide sliding slot along the length direction of the guide sliding slot, all the rotating discs are rotatably arranged in the circular through-slots, a horizontal sliding slot is formed in the middle of each rotating disc and is in communication with the guide sliding slot, and a through-hole is formed in the middle of each horizontal sliding slot for the bolt to pass through.

[0010] As a preferred scheme of the utility model, anti-skid lines are arranged on the outer periphery of all the rotating discs, and the distance between two adjacent rotating discs is greater than or equal to the diameter of one through-hole.

[0011] As a preferred scheme of the utility model, positioning plates are fixedly connected to both sides of the sliding block, a plurality of fixed screw holes corresponding to the bolts are formed in both positioning plates, and all the bolts are threadedly connected with the corresponding fixed screw holes.

[0012] As a preferred scheme of the utility model, lock nuts are threadedly connected to all the bolts, and all the lock nuts are located on the fixed plate.

[0013] As a preferred scheme of the utility model, a rotating handle is fixedly connected to the end of the screw rod away from the sliding block, and anti-skid protrusions are fixedly connected to both sides of the rotating handle.

[0014] As a preferred scheme of the utility model, the mounting rack is provided with a protective plate on one side, and the protective plate is connected with the end of the mounting rack to form an L-shaped structure.

[0015] As a preferred scheme of the utility model, the mounting rack is further provided with a first speed measuring pulley, a second speed measuring pulley, a speed measuring transmission belt and a rotating shaft, the rotating shaft is connected with the mounting rack through a bearing, the input end of the encoder is connected with the rotating shaft, the first speed measuring pulley is connected with the main shaft of the steel cord stranding machine, the second speed measuring pulley is connected with the rotating shaft, the axis of the rotating shaft is parallel to the axis of the main shaft, and the first speed measuring pulley is connected with the second speed measuring pulley through the speed measuring transmission belt.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model discloses a mounting rack for the auxiliary speed measuring device for the main shaft of the steel cord stranding machine, which comprises a mounting rack, a protective plate, a first speed measuring pulley, a second speed measuring pulley, a speed measuring transmission belt and a rotating shaft.

[0018] 2. The utility model discloses a mounting rack for the auxiliary speed measuring device for the main shaft of the steel cord stranding machine, which comprises a mounting rack, a protective plate, a first speed measuring pulley, a second speed measuring pulley, a speed measuring transmission belt and a rotating shaft. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 The utility model provides an auxiliary speed measuring device assembly structure schematic drawing for the main shaft of steel cord stranding machine for embodiment of the utility model;

[0021] Figure 2The utility model provides auxiliary speed measuring device for steel cord stranding machine main shaft provides the three-dimensional structure schematic diagram of another visual angle of the embodiment of the utility model,

[0022] Figure 3 The utility model provides the connection structure schematic diagram of adjusting mechanism,

[0023] Figure 4 The utility model provides the three-dimensional structure schematic diagram of another visual angle of adjusting mechanism,

[0024] Figure 5 The utility model provides the down sectional structure schematic diagram of adjusting mechanism,

[0025] Figure 6 The utility model provides the side sectional structure of adjusting mechanism.

[0026] The number in the drawing respectively shows as follows: 1, transmission case;2, mounting frame;3, encoder;4, adjusting mechanism;11, main shaft;12, power input shaft;13, power output shaft;14, first transmission belt;18, first speed measuring pulley;19, second speed measuring pulley;20, speed measuring transmission belt;21, rotating shaft;41, side plate;42, screw rod;43, guide slot plate;44, fixed plate;45, sliding block;46, screw groove;47, guide sliding slot;48, screw hole;49, bolt;50, limiting piece;51, positioning plate;52, fixed screw hole;53, locking nut;54, rotating handle;55, protection plate;501, rotating disc;502, circular through slot;503, transverse sliding slot;504, perforation. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] For example, Figures 1 to 6The utility model provides a kind of auxiliary speed measuring device for steel cord stranding machine main shaft 11, including transmission case 1 and mounting bracket 2 installed on transmission case 1, encoder 3 is installed on mounting bracket 2, transmission case 1 is additionally provided with adjusting mechanism 4 for adjusting the installation position of encoder 3, adjusting mechanism 4 includes side plate 41, screw rod 42 and guide slot plate 43, side plate 41 is fixed in transmission case 1 top side transversely, guide slot plate 43 is fixed in transmission case 1 top other side longitudinally, and guide slot plate 43 one end is fixedly connected with side plate 41, screw rod 42 is longitudinally arranged in guide slot plate 43, and screw rod 42 one end penetrates side plate 41, and is rotatably connected with side plate 41 by bearing, the end of screw rod 42 away from sliding block 45 is fixedly connected with rotating handle 54, rotating handle 54 both sides are fixedly connected with anti-skid protrusion, mounting bracket 2 bottom is fixedly connected with fixed plate 44, fixed plate 44 bottom is fixedly connected with sliding block 45, thread groove 46 is opened in sliding block 45 inside, screw rod 42 other end extends into thread groove 46, and is threadedly connected with thread groove 46, guide slot plate 43 top both sides are all opened with guide sliding groove 47, fixed plate 44 both sides are respectively opened with multiple screw holes 48 along its length direction, each screw hole 48 is all threadedly connected with bolt 49, and all bolts 49 are slidably connected with its corresponding guide sliding groove 47, the limit piece 50 for limiting bolt 49 movement is arranged in two guide sliding grooves 47.

[0029] In the utility model, the principle of steel cord stranding machine is same with the principle of the prior art, the auxiliary speed measuring device for steel cord stranding machine disclosed in the announcement No.CN 218147512U, is driven by motor to drive transmission case 1 to drive main shaft 11 to rotate, specifically, transmission case 1 has power input shaft 12 and power output shaft 13, power output shaft 13 of transmission case 1 is drivenly connected with main shaft 11 through first transmission belt 14, power input shaft 12 on transmission case 1 is drivenly connected with the output shaft of motor through second transmission belt, in order to facilitate the auxiliary speed measuring device for steel cord stranding machine main shaft 11 in the utility model and the main shaft 11 of steel cord stranding machine form assembly, obtain the rotational speed of main shaft 11, first speed measuring pulley 18, second speed measuring pulley 19, speed measuring transmission belt 20 and rotating shaft 21 are additionally provided on mounting bracket 2, rotating shaft 21 is connected with mounting bracket 2 through bearing, and the input end of encoder 3 is connected with rotating shaft 21, first speed measuring pulley 18 is connected with the main shaft 11 of steel cord stranding machine, second speed measuring pulley 19 is connected with rotating shaft 21, the axis of rotating shaft 21 is parallel to the axis of main shaft 11, first speed measuring pulley 18 is connected with second speed measuring pulley 19 through speed measuring transmission belt 20.

[0030] By adding a first speed measuring pulley 18 at the end of the main shaft 11 of the steel cord stranding machine, setting an installation rack 2 on the box of the transmission box 1 for fixing the encoder 3, connecting the input end of the encoder 3 with the second speed measuring pulley 19 through a rotating shaft 21, and connecting the first speed measuring pulley 18 and the second speed measuring pulley 19 with a speed measuring transmission belt 20, the assembly structure of the encoder 3 in the narrow space at the tail end of the main shaft 11 is optimized, the encoder 3 is facilitated to obtain the pulse signal generated by the rotation of the main shaft 11, and then the rotation speed of the main shaft 11 is obtained.

[0031] Before using the encoder 3 to measure the speed, the encoder 3 needs to be installed. The encoder 3 is installed on the installation rack 2, and then the speed measuring transmission belt 20 is respectively sleeved on the second speed measuring pulley 19 and the first speed measuring pulley 18. The screw rod 42 is driven to rotate by rotating the handle 54. When the screw rod 42 rotates, it is screwed with the screw groove 46 in the sliding block 45, thereby driving the sliding block 45 and the installation rack 2 on the top of the sliding block 45 to move along the inside of the guide sliding groove 47, thereby driving the second speed measuring pulley 19 to move, so as to stretch the speed measuring transmission belt 20. When the tension of the speed measuring transmission belt 20 is appropriate, all the bolts 49 are screwed into the threaded holes 48 one by one and pass through the gap between the corresponding limiting pieces 50 or adjacent two limiting pieces 50, so as to lock the moving position of the installation rack 2, thereby facilitating the quick installation and tension adjustment of the speed measuring transmission belt 20. Similarly, when replacing the speed measuring transmission belt 20, the position of the installation rack 2 can be adjusted by the screw rod 42 after all the bolts 49 are unscrewed. The speed measuring transmission belt 20 is installed quickly and conveniently by the setting of the adjusting mechanism 4, and the tension of the speed measuring transmission belt 20 can be adjusted during installation, so as to ensure good contact between the first speed measuring pulley, the second speed measuring pulley and the speed measuring transmission belt, prevent slipping, thereby maintaining the transmission efficiency and the stability of the system, ensuring the accuracy of the speed measurement, avoiding measurement errors caused by improper tension, and preventing the speed measuring transmission belt 20 from needing to be frequently adjusted due to insufficient tension during installation, thereby avoiding the problem of affecting the efficiency of the speed measurement work.

[0032] Further, the sliding block 45 is fixedly connected with positioning plates 51 on both sides, a plurality of fixed screw holes 52 corresponding to the bolts 49 are formed in the two positioning plates 51, and all the bolts 49 are threadedly connected with the corresponding fixed screw holes 52.

[0033] The limiting piece 50 includes a plurality of rotating discs 501 uniformly arranged along the length direction of the guide sliding groove 47, a plurality of circular through grooves 502 are uniformly formed in the length direction of the guide sliding groove 47, all the rotating discs 501 are rotatably arranged in all the circular through grooves 502, a horizontal sliding groove 503 communicating with the guide sliding groove 47 is formed in the middle of all the rotating discs 501, and a perforation 504 for the bolt 49 to pass through is formed in the middle of all the horizontal sliding grooves 503.

[0034] When the bolt 49 is screwed into the corresponding fixed screw hole 52 after passing through the through hole 504 in the middle of the rotating disc 501, it is fixed in threaded connection with the fixed screw hole 52, so that the bolt 49 is firmly fixed in the limiting part 50 through which it passes. Through the arrangement of the limiting part 50, the displacement of the bolt 49 can be avoided, and accurate positioning and fixing can be achieved, thereby greatly improving the stability of the mounting frame 2. Before adjusting the position of the mounting frame 2, all the bolts 49 can be screwed into the corresponding threaded holes 48, but the bottom of the bolt 49 is located above the rotating disc 501. After determining the fixed position of the speed measuring transmission belt 20, the rotating disc 501 at the front end of the corresponding position is rotated, thereby driving the horizontal sliding groove 503 in the rotating disc 501 to rotate. When the horizontal sliding groove 503 rotates, the guide sliding groove 47 connected on both sides is closed, and then the mounting frame 2 is driven to move until the bolt 49 at the front end of the fixed plate 44 moves to the set position, and then the bolt 49 is screwed into the fixed screw hole 52 for fixing. The arrangement of the rotating disc 501 can pre-position the installation position of the bolt 49, and the outer periphery of all the rotating discs 501 is provided with anti-skid lines, and the spacing between adjacent two rotating discs 501 is greater than or equal to the diameter of one through hole 504. The bolt 49 can not only pass through the through hole 504 in the middle of the rotating disc 501, but also pass through the gap between adjacent two rotating discs 501, so as to adjust and adapt to different needs within a certain range, increase the flexibility of the structure, improve the adjustment accuracy of the mounting frame 2. The cooperation of the bolt 49 and the limiting part 50 not only improves the stability of the mounting frame 2, but also reduces the time required for installation and adjustment, improves the work efficiency, especially in the case of frequent adjustment or replacement of parts.

[0035] All the bolts 49 are threadedly connected with the locking nuts 53, and all the locking nuts 53 are located on the fixed plate 44, thereby improving the locking effect of the bolt 49 and the stability of the mounting frame 2.

[0036] The mounting frame 2 is provided with a protective plate 55, and the protective plate 55 is connected with the end of the mounting frame 2 to form an L-shaped structure. The protective plate 55 is used for protecting the encoder 3, and the protection of the encoder 3 is strengthened.

[0037] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. Auxiliary speed measuring device for the main shaft of a steel cord stranding machine, comprising a transmission box (1) and a mounting bracket (2) mounted on the transmission box (1), characterized in that: The mounting frame (2) is provided with an encoder (3), and the transmission box (1) is further provided with an adjusting mechanism (4) for adjusting the mounting position of the encoder (3), the adjusting mechanism (4) comprises a side plate (41), a screw rod (42) and a guide slot plate (43), the side plate (41) is transversely fixed on one side of the top of the transmission box (1), the guide slot plate (43) is longitudinally fixed on the other side of the top of the transmission box (1), one end of the guide slot plate (43) is fixedly connected with the side plate (41), the screw rod (42) is longitudinally arranged in the guide slot plate (43), one end of the screw rod (42) penetrates through the side plate (41) and is rotatably connected with the side plate (41) through a bearing, the bottom of the mounting frame (2) is fixedly connected with a fixed plate (44), the bottom of the fixed plate (44) is fixedly connected with a sliding block (45), a threaded groove (46) is formed in the sliding block (45), the other end of the screw rod (42) extends into the threaded groove (46) and is threadedly connected with the threaded groove (46), guide sliding grooves (47) are formed in the top of the guide slot plate (43) on both sides, a plurality of threaded holes (48) are formed in the fixed plate (44) on both sides along the length direction, a bolt (49) is threadedly connected with each threaded hole (48), and all the bolts (49) are slidably connected with the corresponding guide sliding grooves (47), and the guide sliding grooves (47) are provided with limiting members (50) for limiting the movement of the bolts (49).

2. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: The limiting members (50) comprise a plurality of rotating discs (501) arranged uniformly along the length direction of the guide sliding grooves (47), a plurality of circular through grooves (502) are uniformly formed in the guide sliding grooves (47) along the length direction, all the rotating discs (501) are rotatably arranged in the circular through grooves (502), transverse sliding grooves (503) are formed in the middle of all the rotating discs (501) and are communicated with the guide sliding grooves (47), and perforations (504) are formed in the middle of all the transverse sliding grooves (503) and are penetrated by the bolts (49).

3. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 2, characterized in that: Anti-skid lines are arranged on the outer periphery of all the rotating discs (501), and the distance between two adjacent rotating discs (501) is greater than or equal to the diameter of one perforation (504).

4. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: Positioning plates (51) are fixedly connected with the sliding block (45) on both sides, a plurality of fixed screw holes (52) corresponding to the bolts (49) are formed in the positioning plates (51), and all the bolts (49) are threadedly connected with the corresponding fixed screw holes (52).

5. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: Lock nuts (53) are threadedly connected with all the bolts (49), and all the lock nuts (53) are located on the fixed plate (44).

6. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: A rotating handle (54) is fixedly connected with the end of the screw rod (42) away from the sliding block (45), and anti-skid protrusions are fixedly connected with the rotating handle (54) on both sides.

7. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: A protective plate (55) is arranged on one side of the mounting frame (2), and the protective plate (55) is connected with the end of the mounting frame (2) to form an L-shaped structure.

8. Auxiliary tachometer device for a main shaft of a steel cord stranding machine according to claim 1, characterized in that: The mounting frame (2) is further provided with a first speed measuring pulley (18), a second speed measuring pulley (19), a speed measuring transmission belt (20) and a rotating shaft (21), the rotating shaft (21) is connected with the mounting frame (2) through a bearing, the input end of the encoder (3) is connected with the rotating shaft (21), the first speed measuring pulley (18) is connected with the main shaft (11) of the steel cord stranding machine, the second speed measuring pulley (19) is connected with the rotating shaft (21), the axis of the rotating shaft (21) is parallel to the axis of the main shaft, and the first speed measuring pulley (18) is connected with the second speed measuring pulley (19) through the speed measuring transmission belt (20).

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