Shake-proof rockshaft connecting seat

Abstract

The utility model provides a shockproof rockshaft connecting seat, which relates to the technical field of bearing seats, and comprises a base, a damping bearing is mounted in the base, the damping bearing comprises an inner ring and an outer ring, the outer ring is fixed in a guide groove, a damping mechanism is mounted on the inner ring, the damping mechanism comprises a mounting ring and a plurality of balance blocks, and the mounting ring is fixed in the guide groove. The multiple balance blocks are symmetrically distributed on the circumferential side of the mounting ring, the mounting ring is rotationally connected to the inner ring, adjusting screw rods are rotationally connected into the balance blocks, adjusting blocks are in threaded connection with the adjusting screw rods, sliding slopes are arranged on the outer sides of the adjusting blocks, and balance weight rods are slidably connected into the balance blocks. The lower end of the balance weight lever abuts against the sliding slope of the adjusting block in a sliding mode, a balance weight block is fixed to the balance weight lever, and a balance spring is connected between the balance weight block and the balance block. The eccentric force of the rockshaft is balanced through the balancing weight, so that the effect of reducing the amplitude is achieved, and the stable swinging of the rockshaft is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, in particular to a vibration-proof rocking shaft connecting seat. Background Art

[0002] The existing driving transmission device of the air jet loom includes a crankshaft, a rocking shaft, a center shaft, a leno shaft and a driving motor. The crankshaft is connected to the rocking shaft through a handgrip and a swing arm. When the crankshaft rotates, the rocking shaft is driven to swing through the swing arm, and then the rocking shaft drives the sley of the air jet loom to swing to beat the weft. The movement form of the rocking shaft is swinging, and the direction of its torque is constantly changing. The swinging component of the rocking shaft is also a component with extremely asymmetric moment of inertia. The moment of inertia of the swinging component is concentrated on one side of the center line of the rocking shaft. In the long run, it will cause the rocking shaft to bend eccentrically, causing the rocking shaft to swing unbalanced, vibrating, and affecting the beating of the loom. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a vibration-proof rocker shaft connecting seat, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A vibration-proof rocker shaft connecting seat comprises a base, a guide groove is provided in the middle of the base, a shock-absorbing bearing is installed in the guide groove, the shock-absorbing bearing comprises an inner ring and an outer ring, the outer ring is fixed in the guide groove, the inner ring is rotatably connected to the outer ring, a shock-absorbing mechanism is installed on the inner ring, the shock-absorbing mechanism comprises a mounting ring and a plurality of balancing blocks, the plurality of balancing blocks are symmetrically distributed on the circumferential side of the mounting ring, and the mounting ring is rotatably connected to the inner ring.

[0008] Preferably, a mounting groove is provided on the side of the inner ring facing the mounting ring, and a rotating ring is provided on the side of the mounting ring facing the inner ring, and the rotating ring is rotatably connected in the mounting groove with a concave-convex fit.

[0009] Preferably, positioning ears are symmetrically arranged on the outer side of the circumference of the mounting ring, and positioning screws are threadedly connected to the positioning ears, and the positioning screws abut against the outer side of the inner ring.

[0010] Preferably, a balancing groove is opened inside the balancing block, an adjusting screw is rotatably connected in the balancing groove, an adjusting block is threadedly connected on the adjusting screw, the adjusting block is slidably connected in the balancing groove, the adjusting block is arranged in a truncated cone shape, a sliding inclined surface is arranged on the outer side of the adjusting block, a counterweight rod is slidably connected in the balancing block, and the lower end of the counterweight rod slides and contacts against the sliding inclined surface of the adjusting block.

[0011] Preferably, a counterweight block is fixed on the counterweight rod, and a balance spring is connected between the counterweight block and the balance block.

[0012] Preferably, a spring sheet is provided between the inner ring and the outer ring, and a plurality of shock absorbing grooves are provided on the spring sheet, and the shock absorbing grooves extend from the inner ring to the outer ring.

[0013] (III) Beneficial effects

[0014] The utility model provides a vibration-proof rocking shaft connecting seat, which has the following beneficial effects:

[0015] 1. In the utility model, a shock-absorbing mechanism is arranged on the inner ring, and the eccentric force from the rocking shaft on the inner ring is balanced by adjusting the counterweight on the inner ring. The amplitude of the vibration of the inner ring is reduced by the balancing counterweight, thereby achieving the purpose of shock prevention. The shock-absorbing bearing is further damped by the spring sheet between the inner ring and the outer ring to ensure the stable swing of the rocking shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a vibration-proof rocking shaft connecting seat of the utility model;

[0017] Figure 2 This is a cross-sectional view of a vibration-proof rocking shaft connecting seat of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the shock absorbing mechanism in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the balance block in this practical confidence;

[0020] Figure 5 It is a structural schematic diagram of the shock-absorbing bearing in the utility model.

[0021] In the figure: 1. base; 2. inner ring; 3. outer ring; 4. spring sheet; 5. mounting ring; 6. balancing block; 7. rotating ring; 8. adjusting screw; 9. adjusting block; 10. counterweight rod; 11. counterweight block; 12. balancing spring; 13. positioning ear; 14. positioning ring groove; 15. positioning screw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model embodiment provides a vibration-proof rocking shaft connecting seat,

[0024] like Figure 1-5 As shown, it includes a base 1, a guide groove is opened in the middle of the base 1, a shock-absorbing bearing is installed in the guide groove, the shock-absorbing bearing includes an inner ring 2 and an outer ring 3, the outer ring 3 is fixed in the guide groove, the inner ring 2 is rotatably connected inside the outer ring 3, a spring sheet 4 is arranged between the inner ring 2 and the outer ring 3, a plurality of shock-absorbing grooves are opened on the spring sheet 4, the shock-absorbing grooves extend from the inner ring 2 to the outer ring 3, a shock-absorbing mechanism is installed on the inner ring 2, the shock-absorbing mechanism includes a mounting ring 5 and a plurality of balancing blocks 6, and the plurality of balancing blocks 6 are symmetrically distributed on the mounting ring 5 The circumferential side of the inner ring 2 is provided with a mounting groove on the side facing the mounting ring 5, and the mounting ring 5 is provided with a rotating ring 7 on the side facing the inner ring 2. The rotating ring 7 is rotatably connected in the mounting groove with a concave-convex fit. A balancing groove is provided inside the balancing block 6, and the balancing groove includes a vertically arranged horizontal slide groove and a longitudinal slide groove. An adjusting screw 8 is rotatably connected in the horizontal slide groove, and an adjusting block 9 is threadedly connected on the adjusting screw 8. The adjusting block 9 is slidably connected in the balancing groove, and the outer wall of the adjusting block 9 is provided with a sliding spline, and the inner wall of the horizontal slide groove is provided with The spline groove, the sliding spline and the spline groove are matched in a concave-convex manner, the adjusting block 9 is set to a truncated cone shape, and a sliding inclined surface is set on the outer side of the adjusting block 9. A counterweight rod 10 is slidingly connected in the balancing block 6, and the counterweight rod 10 is slidingly connected in the longitudinal slide groove. An arc surface is set at the lower end of the counterweight rod 10, and the lower end of the counterweight rod 10 slides and contacts on the sliding inclined surface of the adjusting block 9. A counterweight block 11 is fixed on the counterweight rod 10, and a counterweight groove is opened in the longitudinal slide groove. The inner diameter of the counterweight groove is larger than the inner diameter of the longitudinal slide groove. The counterweight block 11 is matched in a concave-convex manner. It is slidingly connected in the counterweight groove, and a balancing spring 12 is connected between the counterweight block 11 and the balancing block 6, and the balancing spring 12 abuts between the counterweight block 11 and the side wall of the counterweight groove, and positioning ears 13 are symmetrically arranged on the outer side of the circumference of the mounting ring 5, and a positioning screw 15 is threadedly connected to the positioning ear 13. A positioning ring groove 14 is opened on the side of the inner ring 2 facing the positioning screw 15, and a positioning protrusion is provided on the side wall of the positioning ring groove 14. The positioning screw 15 abuts in the positioning ring groove 14, and the front end of the positioning screw 15 abuts and is clamped on the positioning protrusion.

[0025] Working principle:

[0026] In the utility model, the outer ring 3 is fixed on the frame through the base 1, the inner ring 2 is sleeved on the end of the rocking shaft, and the positioning screw 15 is clamped on the positioning protrusion to lock the mounting ring 5 and the inner ring 2. The mounting ring 5 can keep synchronous rotation with the inner ring 2, that is, the balancing block 6 keeps synchronous rotation with the rocking shaft, that is, the eccentric force of the rocking shaft is balanced by the balancing block 6.

[0027] The mounting ring 5 and the inner ring 2 can be unlocked by the positioning screw 15, and the mounting ring 5 can be rotated in a circle to adjust the position of the balancing block 6 in the circumferential direction of the rocking shaft, so that the balancing block 6 can adjust the direction of the balancing eccentric force. In addition, the adjusting screw 8 can be rotated to make the adjusting block 9 slide left and right on the adjusting screw 8, so that the balancing block 11 on the balancing weight rod 10 slides up and down through the sliding inclined surface to adjust the size of the balancing force, so as to achieve a better balancing effect, reduce the amplitude of the rocking shaft to a minimum, and achieve a shock absorbing effect. At the same time, the spring sheet 4 between the inner ring 2 and the outer ring 3 is used to reduce the shock between the inner ring 2 and the outer ring 3;

[0028] In summary, the best shock-absorbing effect is achieved by reducing the amplitude of the inner ring 2 through the counterweight block 11 and performing shock absorption and buffering through the spring sheet 4, thereby ensuring the normal operation of the rocker shaft and reducing the possibility of rocker shaft bending caused by rocker shaft inertia.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration-proof rocker shaft connection seat, comprising a base, a guide groove is provided in the middle of the base, and the characteristics are: A shock-absorbing bearing is installed in the guide groove, and the shock-absorbing bearing includes an inner ring and an outer ring. The outer ring is fixed in the guide groove, and the inner ring is rotatably connected to the outer ring. A shock-absorbing mechanism is installed on the inner ring, and the shock-absorbing mechanism includes a mounting ring and a plurality of balancing blocks. The plurality of balancing blocks are symmetrically distributed on the circumferential side of the mounting ring, and the mounting ring is rotatably connected to the inner ring.

2. The anti-vibration rocker shaft connection seat according to claim 1, characterized in that: A mounting groove is arranged on one side of the inner ring facing the mounting ring, and a rotating ring is arranged on one side of the mounting ring facing the inner ring. The rotating ring is rotatably connected in the mounting groove by means of concave-convex fitting.

3. The anti-vibration rocker shaft connection seat according to claim 2, characterized in that: Positioning ears are symmetrically arranged on the outer side of the circumference of the mounting ring, and positioning screws are threadedly connected to the positioning ears, and the positioning screws abut against the outer side of the inner ring.

4. The anti-vibration rocker shaft connection seat according to claim 3, characterized in that: A balancing groove is provided inside the balancing block, an adjusting screw is rotatably connected in the balancing groove, an adjusting block is threadedly connected to the adjusting screw, the adjusting block is slidably connected in the balancing groove, the adjusting block is arranged in a truncated cone shape, a sliding inclined surface is arranged on the outer side of the adjusting block, a counterweight rod is slidably connected in the balancing block, and the lower end of the counterweight rod slides and contacts against the sliding inclined surface of the adjusting block.

5. The anti-vibration rocker shaft connection seat according to claim 4, characterized in that: A counterweight block is fixed on the counterweight rod, and a balance spring is connected between the counterweight block and the balance block.

6. The anti-vibration rocker shaft connection seat according to claim 5, characterized in that: A spring sheet is arranged and connected between the inner ring and the outer ring. A plurality of shock absorbing grooves are provided on the spring sheet. The shock absorbing grooves extend from the inner ring to the outer ring.

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