A cam-beating air-jet loom with a stable transmission mechanism

Abstract

The present invention discloses a cam-beating air-jet loom transmission smoothing mechanism, comprising a driving pulley or a direct-drive motor rotor; a driving shaft extending axially along the driving pulley or the direct-drive motor rotor, with a power shaft for transmission therewith sleeved on the outside of the driving shaft; and a buffer sleeve assembly located between the power shaft and the driving pulley or the direct-drive motor rotor; the buffer sleeve assembly comprising: a buffer sleeve sleeved on the outside of the power shaft and located between the power shaft and the driving pulley or the direct-drive motor rotor; and a pin shaft passing through the buffer sleeve; the power shaft and the driving pulley or the direct-drive motor rotor are controlled in preload by the buffer sleeve assembly. The transmission smoothing mechanism of the present invention adjusts the preload by inserting the buffer sleeve assembly into the adjustment space between the power shaft and the driving pulley or the direct-drive motor rotor; and a bearing is installed between the two to ensure the concentricity of the power shaft and to provide support to ensure smooth operation of the driving shaft.

Description

Technical Field

[0001] The invention relates to the technical field of air jet looms, and in particular to a cam beating air jet loom transmission stabilization mechanism. Background Art

[0002] As looms are now developing towards high speed, high efficiency and energy saving, higher requirements are put forward in terms of loom performance. The beating motion and the weft insertion motion are interrelated. The beating motion of the loom swings back and forth, which needs to be coordinated with the weft insertion motion of the loom. In order to provide more weft insertion time for weft insertion, thereby reducing the excessive requirements for weft yarn strength, the beating motion generally needs to have a larger dead center static angle after the weft can be inserted. After the rear dead center is relatively still for a certain period of time, it swings forward quickly, and after reaching the front dead center, it swings backward quickly, and then relatively still, and swings back and forth as the loom rotates.

[0003] The swing of the weft is driven by the loom's drive shaft (camshaft or crankshaft) through a connecting rod mechanism or a cam mechanism. During one rotation of the drive shaft, the required driving torque will change back and forth, which will cause the drive motor current to change greatly, causing heat and excessive power consumption.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop a cam-beating air-jet loom transmission smooth mechanism. Summary of the Invention

[0005] The purpose of the present invention is to provide a cam-beating air-jet loom transmission smoothing mechanism, which ensures that the driving pulley or the direct-drive motor rotor and the power shaft are tightly matched by a buffer sleeve in conjunction with a steel pin, and effectively adjusts the pre-tightening degree of the buffer sleeve between the driving pulley or the direct-drive motor rotor and the power shaft.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a cam-beating air jet loom transmission stabilization mechanism, the transmission stabilization mechanism comprising:

[0008] Drive pulley or direct drive motor rotor;

[0009] A drive shaft extending along the axial direction of the drive pulley or the direct drive motor rotor, wherein the drive shaft is sleeved with a power shaft for transmission therewith; and

[0010] a buffer sleeve assembly located between the power shaft and the drive pulley or the direct drive motor rotor;

[0011] The buffer sleeve assembly comprises:

[0012] a buffer sleeve sleeved on the outside of the power shaft and located between the power shaft and the drive pulley or the direct drive motor rotor; and

[0013] a pin shaft passing through the buffer sleeve;

[0014] The power shaft and the drive pulley or the direct drive motor rotor are preloaded by controlling the buffer sleeve assembly.

[0015] Furthermore, the power shaft is a ratchet shaft, and a plurality of power shaft protrusions are protruded at intervals in the circumferential direction of the power shaft;

[0016] The driving pulley or the direct drive motor rotor has a matching groove at a matching position with the power shaft protrusion of the power shaft;

[0017] The size of the power shaft protrusion is smaller than the slot size of the matching groove, the power shaft protrusion is embedded in the corresponding matching groove, and adjustment space is reserved between the two sides of the power shaft protrusion and the inner wall of the matching groove;

[0018] The buffer sleeve assembly is installed in the corresponding adjustment space.

[0019] Furthermore, two bearings are installed between the power shaft and the drive pulley or the direct drive motor rotor;

[0020] The two bearings are:

[0021] a first bearing mounted on the rear side of the buffer sleeve assembly;

[0022] A second bearing is mounted on the front side of the buffer sleeve assembly.

[0023] Furthermore, the front portion of the power shaft is configured in a stepped shape;

[0024] The front portion of the power shaft is provided with a bearing sleeve;

[0025] The first bearing sleeve is arranged on the outer periphery of the power shaft, and the first bearing is limited by a shaft retaining ring on the side away from the buffer sleeve assembly;

[0026] A bearing stopper is installed on the end surface of the driving pulley or the direct drive motor rotor, and the bearing stopper is in contact with the first bearing;

[0027] The second bearing sleeve is arranged on the outer periphery of the bearing sleeve.

[0028] In the above technical solution, the present invention provides a cam-beating air-jet loom transmission smoothing mechanism, which has the following beneficial effects:

[0029] The transmission smoothing mechanism of the present invention is embedded in the adjustment space between the power shaft and the drive pulley or the direct drive motor rotor through the buffer sleeve component to adjust the preload; and a bearing is installed between the two to ensure the concentricity of the power shaft and play a supporting role to ensure smooth operation of the drive shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 A schematic structural diagram of the working state of a cam-beating air-jet loom transmission stabilization mechanism provided by an embodiment of the present invention;

[0032] Figure 2 A schematic structural diagram of a cam-beating air-jet loom transmission stabilization mechanism provided by an embodiment of the present invention;

[0033] Figure 3 This is a front view of a cam-beating air-jet loom transmission stabilization mechanism provided by an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Drive shaft; 2. Power shaft; 3. Drive pulley or direct drive motor rotor; 4. Buffer sleeve assembly;

[0036] 201, bearing sleeve;

[0037] 301, first bearing; 302, second bearing;

[0038] 401, buffer sleeve; 402, pin;

[0039] 501, bearing retaining plate; 502, shaft retaining ring. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] See also Figures 1 to 3 As shown;

[0042] This embodiment discloses a cam-beating air jet loom transmission stabilization mechanism, which comprises:

[0043] Drive pulley or direct drive motor rotor 3;

[0044] A drive shaft 1 extending along the axial direction of the drive pulley or the direct drive motor rotor 3, with a power shaft 2 for transmission being sleeved on the outside of the drive shaft 1; and

[0045] A buffer sleeve assembly 4 located between the power shaft 2 and the drive pulley or the direct drive motor rotor 3;

[0046] The cushioning sleeve assembly 4 has:

[0047] A buffer sleeve 401 is sleeved on the outside of the power shaft 2 and located between the power shaft 2 and the drive pulley or the direct drive motor rotor 3; and

[0048] A pin 402 passing through the buffer sleeve 401;

[0049] The preload degree of the power shaft 2 and the drive pulley or the direct drive motor rotor 3 is controlled through the buffer sleeve assembly 4 .

[0050] Specifically, this embodiment discloses a mechanism for ensuring smooth transmission between the power shaft 2 and the drive pulley or the direct-drive motor rotor 3, wherein a buffer sleeve assembly 4 is embedded in the adjustment space between the power shaft 2 and the drive pulley or the direct-drive motor rotor 3. By selecting a buffer sleeve 401 and a pin shaft 402 of appropriate size, it is possible to ensure that the drive pulley or the direct-drive motor rotor 3 is tightly fitted with the power shaft 2, and the pre-tightening of the buffer sleeve 401 between the drive pulley or the direct-drive motor rotor 3 and the power shaft 2 is adjusted by the pin shaft 402.

[0051] Preferably, the power shaft 2 of this embodiment is a ratchet shaft, and the power shaft 2 has a plurality of power shaft protrusions protruding at intervals in the circumferential direction;

[0052] The driving pulley or the direct drive motor rotor 3 is provided with a matching groove at the matching position with the power shaft protrusion of the power shaft 2;

[0053] The size of the power shaft protrusion is smaller than the slot size of the matching groove, the power shaft protrusion is embedded in the corresponding matching groove, and adjustment space is reserved between the two sides of the power shaft protrusion and the inner wall of the matching groove;

[0054] The buffer sleeve assembly 4 is installed in the corresponding adjustment space.

[0055] This embodiment further defines the relative connection relationship between the power shaft 2 and the drive pulley or the direct-drive motor rotor 3. The power shaft 2 of this embodiment is a ratchet shaft, and a plurality of power shaft protrusions are formed at intervals on the outer periphery of the power shaft 2. In conjunction with the power shaft protrusions, corresponding matching grooves are formed on the inner circumference of the drive pulley or the direct-drive motor rotor 3. After the power shaft protrusions are embedded in the matching grooves, adjustment space is reserved on both sides of the power shaft protrusions, and a group of buffer sleeve assemblies 4 are embedded in the adjustment space.

[0056] In order to ensure the concentricity of the structure, two bearings are installed between the power shaft 2 and the drive pulley or the direct drive motor rotor 3 in this embodiment;

[0057] The two bearings are:

[0058] A first bearing 301 mounted on the rear side of the buffer sleeve assembly 4;

[0059] The second bearing 302 is mounted on the front side of the buffer sleeve assembly 4 .

[0060] In combination with the installation of the two bearings in the above embodiment and the concentricity requirements, the front portion of the power shaft 2 of this embodiment is configured in a stepped shape; a bearing sleeve 201 is sleeved on the front portion of the power shaft 2; a first bearing 301 is sleeved on the outer periphery of the power shaft 2, and the side of the first bearing 301 away from the buffer sleeve assembly 4 is limited by a shaft retaining ring 502;

[0061] A bearing retainer 501 is mounted on the end surface of the driving pulley or the direct drive motor rotor 3 , and the bearing retainer 501 contacts the first bearing 301 ; the second bearing 302 is sleeved on the outer periphery of the bearing sleeve 201 .

[0062] The first bearing 301 of this embodiment is restrained by a bearing retainer 501 and a shaft retaining ring 502, with the other side contacting the buffer sleeve assembly 4. Subsequently, the second bearing 302 is installed on one side of the outer side. The second bearing 302 of this embodiment is sleeved around the outer circumference of the bearing sleeve 201. One end of the bearing sleeve 201 of this embodiment, which mates with the power shaft 2, is aligned with the outer diameter of the power shaft 2, thereby ensuring that the two bearings are concentric after installation.

[0063] During installation, install the first bearing 301 on the power shaft 2 and install the shaft retaining ring 502 to fully position the bearing axially. Then install the power shaft 2 on the drive pulley. The power shaft 2 and the drive pulley or the direct-drive motor rotor 3 are installed in a certain matching relationship. Insert the buffer sleeve 401 into the adjustment space between the power shaft 2 and the drive pulley respectively. According to the size of the inner hole of the buffer sleeve 401 and the preload between the power shaft 2 and the drive pulley or the direct-drive motor rotor 3, select the pin 402 of the qualified size and insert it into the buffer sleeve 401 respectively. Then, install the second bearing 302 on the bearing sleeve 201 according to the matching relationship and press it onto the power shaft 2 as a whole. After installation, tighten it with bolts.

[0064] In the above technical solution, the present invention provides a cam-beating air-jet loom transmission smoothing mechanism, which has the following beneficial effects:

[0065] The transmission smoothing mechanism of the present invention is embedded in the adjustment space between the power shaft and the drive pulley or the direct drive motor rotor 3 through the buffer sleeve assembly 4 to adjust the preload; and a bearing is installed between the two to ensure the concentricity of the power shaft and play a supporting role to ensure smooth operation of the drive shaft.

[0066] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A cam-beating air jet loom transmission smooth mechanism, characterized in that: The transmission smooth mechanism comprises: A drive pulley or a direct drive motor rotor (3); A drive shaft (1) extending axially along the drive pulley or the direct drive motor rotor (3), wherein the drive shaft (1) is externally sleeved with a power shaft (2) for transmission therewith; and a buffer sleeve assembly (4) located between the power shaft (2) and the drive pulley or the direct drive motor rotor (3); The buffer sleeve assembly (4) comprises: a buffer sleeve (401) sleeved on the outside of the power shaft (2) and located between the power shaft (2) and the drive pulley or the direct drive motor rotor (3); and A pin shaft (402) passing through the buffer sleeve (401); The power shaft (2) and the drive pulley or the direct drive motor rotor (3) control the preload through the buffer sleeve assembly (4); The power shaft (2) is a ratchet shaft, and the power shaft (2) has a plurality of power shaft protrusions protruding at intervals in the circumferential direction; A matching groove is provided at a matching position between the driving pulley or the direct drive motor rotor (3) and the power shaft protrusion of the power shaft (2); The size of the power shaft protrusion is smaller than the slot size of the matching groove, the power shaft protrusion is embedded in the corresponding matching groove, and adjustment space is reserved between the two sides of the power shaft protrusion and the inner wall of the matching groove; The buffer sleeve assembly (4) is installed in the corresponding adjustment space.

2. A cam-beating air jet loom transmission stabilization mechanism according to claim 1, characterized in that: Two bearings are also installed between the power shaft (2) and the drive pulley or the direct drive motor rotor (3); The two bearings are: a first bearing (301) mounted on the rear side of the buffer sleeve assembly (4); A second bearing (302) is mounted on the front side of the buffer sleeve assembly (4).

3. A cam-beating air jet loom transmission stabilization mechanism according to claim 2, characterized in that: The front portion of the power shaft (2) is configured in a stepped shape; The front portion of the power shaft (2) is provided with a bearing sleeve (201); The first bearing (301) is sleeved on the outer periphery of the power shaft (2), and the first bearing (301) is limited by a shaft retaining ring (502) on the side away from the buffer sleeve assembly (4); A bearing retaining plate (501) is mounted on the end surface of the driving pulley or the direct drive motor rotor (3), and the bearing retaining plate (501) is in contact with the first bearing (301); The second bearing (302) is sleeved on the outer periphery of the bearing sleeve (201).

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