Motion transmission device and jacquard machine comprising same

Abstract

The invention discloses a motion transmission device which comprises a first box shell, a second box shell, a first motor, a second motor, a first input shaft which is supported in the first box shell and is fixedly provided with a first driven gear, and a second input shaft which is supported in the second box shell and is fixedly provided with a second driven gear, the fastened first box shell and the first motor are separated from the fastened second box shell and the second motor, the first motor comprises a first output shaft which extends into the first box shell and is fixedly provided with a first driving gear, and the second motor comprises a second output shaft which extends into the second box shell and is fixedly provided with a second driving gear. The first driving gear is in deceleration engagement with the first driven gear, and the second driving gear is in deceleration engagement with the second driven gear. According to the motion transmission device adopting the technical scheme, jacquard noise sources generated by motion can be distributed and transmitted in a balanced mode, and one of the two box shells can be opened for maintenance in a targeted and exclusive mode.

Description

Technical Field

[0001] The invention relates to a motion transmission device for a jacquard machine, belonging to the technical field of jacquard opening. Background Art

[0002] The jacquard weaving workshop operates multiple jacquard machines arranged in rows. Each jacquard machine at a predetermined speed will generate a large amount of noise, including gear and gear shaft transmission, under various coordinated movements. This high-noise environment is quite unfriendly to operators and personnel entering the workshop.

[0003] Common jacquard machines are generally provided with a motion transmission device including a main transmission shaft and a motion conversion device including an eccentric shaft at a nearby position outside the same side wall panel. The eccentric shaft is used to install a crank, an eccentric wheel or a cam. Although the same-side arrangement of the motion transmission device and the motion conversion device reflects the advantage of compact structure, the disadvantage brought by the super-centralized design is that the noise generated by the motion is too concentrated, resulting in uneven noise distribution of the jacquard machine. Noise suppression measures can only be implemented for this concentrated noise source; since the position relationship between the transmission parts of the motion transmission device and the motion conversion device is similar, they are usually integrated in the same transmission box. Compared with the looms that form jacquard weaving equipment together, the jacquard machine has the characteristics of repeated parts and a large number of parts. In practice, it is often the case that only one of the repeated parts is worn or worn to a serious degree. However, the same transmission box not only includes other parts in the repeated parts but also other types of parts. For this reason, the aforementioned only transmission box that cannot be selected must be opened. This unselectable interference is disadvantageous for targeted maintenance operations, thereby affecting the maintenance efficiency. Summary of the invention

[0004] The object of the present invention is to provide a motion transmission device which can distribute the noise sources of the jacquard machine transmitted motion separately and can carry out targeted and exclusive unpacking and maintenance on the box shell.

[0005] To this end, the present invention adopts the following technical solutions:

[0006] A motion transmission device is installed on a jacquard machine frame, comprising a housing, a motor, an input shaft, and a driven gear. The jacquard machine frame comprises two longitudinal cross beams. The improvement lies in that the housing comprises a first housing and a second housing, and the motor comprises a first motor and a second motor, wherein the first motor is fastened to the first housing, the second motor is fastened to the second housing, and the first housing, the first motor, the second housing, and the second motor are spaced from each other. The first motor comprises a first output shaft extending into the first housing, the first output shaft is fixed with a first driving gear and the first driving gear is accommodated in the first housing, and the second motor comprises a first output shaft extending into the second housing. A second output shaft, the second output shaft is fixed with a second driving gear and the second driving gear is accommodated in a second housing, the input shaft has a first input shaft rotatably supported in the first housing and a second input shaft rotatably supported in the second housing, the driven gear has a first driven gear accommodated in the first housing and a second driven gear accommodated in the second housing, the first driven gear is fixed to the first input shaft, and the second driven gear is fixed to the second input shaft, the first driving gear is meshed with the first driven gear at a reduced speed to transmit the motion of the first output shaft to the first input shaft, and the second driving gear is meshed with the second driven gear at a reduced speed to transmit the motion of the second output shaft to the second input shaft.

[0007] One of the two longitudinal beams corresponds to the longitudinal front beam with respect to the front part of the shed of the jacquard machine, and the other corresponds to the longitudinal rear beam with respect to the rear part of the shed of the jacquard machine, and the motion transmission device also includes any one of the following technical features a, b, c:

[0008] a- The first box shell is fastened to one side of the longitudinal rear cross beam and is located outside the top of one side of the weaving area of ​​the loom, and the second box shell is fastened to the other side of the longitudinal rear cross beam and is located outside the top of the other side of the weaving area of ​​the loom.

[0009] b- The first box shell is fastened to one side of the longitudinal front crossbeam and is located outside the top of one side of the weaving area of ​​the loom, and the second box shell is fastened to the other side of the longitudinal front crossbeam and is located outside the top of the other side of the weaving area of ​​the loom.

[0010] c- The first box shell and the second box shell are arranged crosswise, one of the first box shell and the second box shell is fastened to one side of the longitudinal front cross beam and the other is fastened to the other side of the longitudinal rear cross beam, and the first box shell and the second box shell are both located outside the weaving area of ​​the loom.

[0011] Preferably, the first housing and the second housing are both closable, and their respective cavities are used to store lubricants.

[0012] Preferably, the first motor is fastened to the upper part of the first housing, and the second motor is fastened to the upper part of the second housing; the first input shaft is rotatably supported at the lower part of the first housing, and the second input shaft is rotatably supported at the lower part of the second housing.

[0013] The downward projection of the axis of the first output shaft coincides with the axis of the first input shaft, and the downward projection of the axis of the second output shaft coincides with the axis of the second input shaft.

[0014] Preferably, the upper volume of the first shell and the second shell is small while the lower volume is large.

[0015] Preferably, the first box shell and the second box shell are provided with lugs on both outer sides of their lower parts, and the lugs are provided with auxiliary through holes for the support members to pass through and fasten them to the two longitudinal beams. Screw holes are provided at the lugs and incisions are provided along the radial direction of the auxiliary through holes, which can be tightened and loosened after tightening.

[0016] Another subject of the invention is also a Jacquard machine equipped with a motion transmission device according to the invention as described above.

[0017] The present invention has the following advantages and positive effects:

[0018] In the device, one of the two motors is correspondingly fastened to one of the two independently closable housings, and the housing and motor fixed together are arranged to be spaced apart from the other housing and motor; the two output shafts extend into the corresponding housings respectively, and the driving gear fixed to each output shaft is accommodated in the corresponding housing; the two input shafts are rotatably supported in their respective housings, and the driven gear fixed to each input shaft is accommodated in the corresponding housing. Therefore, the transmission parts that can be located in one housing and one motor and the transmission parts that can be located in another housing and another motor are arranged to be spaced apart from each other, which helps to evenly distribute the jacquard machine noise source generated by the transmission motion, and accordingly improves the friendliness of the working environment, and the jacquard machine has good dynamic balance and low vibration.

[0019] According to the comprehensive factors such as the change of oil quality during the service life and / or whether abnormal noise is generated during the operation of the jacquard machine, it is helpful to determine whether to open one of the housings first and carry out targeted maintenance on the driven gear, driving gear and supporting bearings located in the housing. On the basis of efficiently and quickly checking the wear degree of each part and supporting bearing in the reduction transmission component in the housing that has been opened first, it is also possible to further explore the wear source associated with the wear point of the inspected part and which side of the node of the related motion link inside the jacquard machine body causes it, thereby eliminating the need to open the other housing for maintenance and the need to repair the irrelevant side nodes inside the jacquard machine body.

[0020] After the two box shells are away from the weaving area of ​​the loom, the lubricant can be prevented from dripping, penetrating, and diffusing to contaminate the fabric or warp yarn during maintenance and overhaul operations or when oil leakage occurs.

[0021] By installing the motor on the upper part of the casing under the condition of ensuring effective lubrication of the driving gear, the disadvantage of lubricant seeping into the motor can be eliminated, thereby avoiding additional resistance when the rotor shaft rotates, and correspondingly improving the smoothness of the motor rotation and the timeliness of the output transmission of the driving gear.

[0022] The volume of the upper parts of the two box shells is smaller than that of the lower parts. Compared with the existing box shell structure in which the upper and lower parts have equal or substantially equal volumes, the box shell cost of the device is lower.

[0023] After each box shell is provided with auxiliary through holes with screw holes and cuts are made, the load-bearing member can be used to assist in bearing the weight of the box shell and the components therein, which helps to improve the overall stability, and the load-bearing member and the box shell have a high degree of fastness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a top view of the motion transmission device of the present invention;

[0025] Figure 2 is a rear view of the present invention;

[0026] Figure 3 It is a three-dimensional diagram of one direction of the present invention;

[0027] Figure 4 It is a stereogram of another viewing angle of the present invention;

[0028] Figure 5 A plan view of the first housing (second housing);

[0029] Figure 6 yes Figure 5 Section view along AA. DETAILED DESCRIPTION

[0030] Figures 1 to 4 The motion transmission device provided by the present invention is schematically shown, which is installed on a jacquard machine frame and includes a housing, a motor providing driving force, an input shaft, and a driven gear. The jacquard machine frame includes two longitudinal beams.

[0031] See also Figure 1 , 3 4. The housing comprises a first housing 2L and a second housing 2R, and the motor comprises a first motor 3L and a second motor 3R, wherein the first motor is fastened to the first housing, and the second motor is fastened to the second housing, and the first housing 2L and the first motor 3L fixed together and the second housing 2R and the second motor 3R fixed together are spaced from each other in the length direction of the two longitudinal beams.

[0032] See also Figures 1 to 4 The first motor includes a first output shaft 30L extending into the first housing, the first output shaft is fixed with a first driving gear 31L and the first driving gear is accommodated in the first housing 2L, the second motor includes a second output shaft 30R extending into the second housing, the second output shaft is fixed with a second driving gear 31R and the second driving gear is accommodated in the second housing 2R, the input shaft includes a first input shaft 40L rotatably supported in the first housing and a second input shaft 40R rotatably supported in the second housing, the driven gear includes a first driven gear 41L accommodated in the first housing and a second driven gear 41R accommodated in the second housing, the first driven gear 41L is fixed to the first input shaft 40L, and the second driven gear 41R is fixed to the second input shaft 40R, combined with Figure 6 shown.

[0033] See also Figure 1 The first driving gear 31L is meshed with the first driven gear 41L at a reduced speed to transmit the motion of the first output shaft 30L to the first input shaft 40L, and the second driving gear 31R is meshed with the second driven gear 41R at a reduced speed to transmit the motion of the second output shaft 30R to the second input shaft 40R, combined with Figure 6 shown.

[0034] See also Figure 6 The first input shaft 40L extends out of the shaft extension section of the first housing 2L for installing an angle plate (conventional parts are not shown in the figure), and the opposite end of the shaft extension section (also extending out of the first housing 2L) is used to fix an eccentric rotating part (such as an eccentric wheel or a crank, shown as a crank); similarly, the second input shaft 40R extends out of the shaft extension section of the second housing 2R for installing an angle plate, and the opposite end of the shaft extension section (also extending out of the second housing 2R) is used to fix an eccentric rotating part (such as a crank or an eccentric wheel).

[0035] Depend on Figure 1 As shown, the first and second mentioned above refer to standing and observing facing the front part 5F of the shed: the left hand side is the first, the right hand side is the second, and the shed rear part 5B is opposite to the front part 5F of the shed.

[0036] Continue to see Figure 4 , 6 The first motor 3L and the second motor 3R are servo motors; an oil seal 2 62 is provided at the port of the first housing 2L, and an oil seal 61 is provided at the center hole of the end cover 222L detachably connected to the first housing 2L to prevent the lubricating oil from leaking out along the first output shaft. Similarly, an oil seal 2 62' is provided at the port of the second housing 2R, and an oil seal 61' is provided at the center hole of the end cover 222R detachably connected to the second housing 2R to prevent the lubricating oil from leaking out along the second output shaft.

[0037] See you next time Figure 1 , one of the two longitudinal beams corresponds to the longitudinal front beam 1F with respect to the front part of the shed of the jacquard machine, and the other corresponds to the longitudinal rear beam 1B with respect to the rear part of the shed of the jacquard machine, and the motion transmission device also includes any one of the following technical features a, b, c:

[0038] a-The first box shell 2L is fastened to one side of the longitudinal rear cross beam 1B (the inner wall of this side is shown in the figure) and is located outside the top of one side of the weaving area of ​​the loom, and the second box shell 2R is fastened to the other side of the longitudinal rear cross beam 1B (the inner wall of the other side is shown in the figure) and is located outside the top of the other side of the weaving area of ​​the loom.

[0039] b-The first box shell 2L is fastened to one side of the longitudinal front cross beam 1F (preferably the inner wall of this side) and is located outside and above one side of the weaving area of ​​the loom, and the second box shell 2R is fastened to the other side of the longitudinal front cross beam 1F (preferably the inner wall of the other side) and is located outside and above the other side of the weaving area of ​​the loom.

[0040] c- The first box shell 2L and the second box shell 2R are arranged crosswise, one of the first box shell 2L and the second box shell 2R is fastened to one side of the longitudinal front beam 1F (preferably the inner wall of this side) and the other is fastened to the other side of the longitudinal rear beam 1B (preferably the inner wall of the other side), and the first box shell and the second box shell are both located outside the weaving area above the loom (the other side of the aforementioned longitudinal rear beam 1B refers to the position corresponding to the other side of the longitudinal front beam 1F).

[0041] The first housing 2L and the second housing 2R are both closable, and their respective cavities are used to store lubricants and replace lubricants during maintenance. When the two independent housings respectively store lubricants (such as lubricating oil) for fully lubricating the driven gear, the driving gear part and the supporting bearing therein, the lubrication (such as oil bath) performance of each part is improved, the wear of each part is reduced and the service life of each part is extended.

[0042] See also Figure 5 , 6 , the first motor 3L is fastened to the upper part 21L of the first housing 2L, and the second motor 3R is fastened to the upper part 21R of the second housing 2R; the first input shaft 40L is rotatably supported at the lower part 22L of the first housing 2L, and the second input shaft 40R is rotatably supported at the lower part 22R of the second housing 2R. The axis a1 of the first output shaft is parallel to the axis b1 of the first input shaft in the upper and lower directions, and the former is located directly above the latter; the axis a2 of the second output shaft is parallel to the axis b2 of the second input shaft in the upper and lower directions, and the former is located directly above the latter. The upper volumes of the first housing 2L and the second housing 2R are small, while the lower volumes are large, so that the first housing 2L and the second housing 2R are both gourd-shaped.

[0043] See also Figure 4 , 6 First lugs 221L are respectively arranged on both outer sides of the lower part 22L of the first box shell 2L, and the first lug 221L is provided with auxiliary through holes 2210L for the bearing member (such as a rod or a pipe) to pass through and fasten it to the two longitudinal cross beams. Three screw holes (not visible in the figure) are arranged at the first lug 221L, and a cutout 2210L' which can be tightened by a tightening bolt and can be loosened after tightening is arranged radially along the auxiliary through hole 2210L; second lugs 221R are respectively arranged on both outer sides of the lower part 22R of the second box shell 2R, and the second lug 221R is provided with auxiliary through holes 2210R for the bearing member to pass through and fasten it to the two longitudinal cross beams. Three screw holes (not visible in the figure) are arranged at the second lug 221R, and a cutout 2210R' which can be tightened by a tightening bolt and can be loosened after tightening is arranged radially along the auxiliary through hole 2210R.

[0044] The first motor and the second motor have the same structure and specifications, the first driving gear and the second driving gear have the same structure and specifications, the first housing and the second housing have the same structure and specifications, the first output shaft and the second output shaft have the same structure and specifications, and the first driven gear and the second driven gear have the same structure and specifications, therefore, the amount of noise generated by the motion transmission on both sides is equivalent, and in fact, the spare parts in the warehouse can greatly reduce the inventory.

[0045] The motion transmission device of the above embodiment can be used in the technical field of jacquard opening machinery. That is, according to another aspect of the present invention, a jacquard machine is provided, which is equipped with the above motion transmission device.

Claims

1. A motion transmission device, which is installed on a jacquard frame, comprises a housing, a motor, an input shaft, and a driven gear. The jacquard frame comprises two longitudinal beams, and is characterized in that: The housing comprises a first housing and a second housing, and the motor comprises a first motor and a second motor, wherein the first motor is fastened to the first housing, and the second motor is fastened to the second housing, and the first housing, the first motor, the second housing, and the second motor are spaced from each other, the first motor comprises a first output shaft extending into the first housing, the first output shaft is fixed with a first driving gear and the first driving gear is accommodated in the first housing, the second motor comprises a second output shaft extending into the second housing, the second output shaft is fixed with a second driving gear and the second driving gear is accommodated in the first housing. The wheel is accommodated in the second housing, the input shaft has a first input shaft rotatably supported in the first housing and a second input shaft rotatably supported in the second housing, the driven gear has a first driven gear accommodated in the first housing and a second driven gear accommodated in the second housing, the first driven gear is fixed to the first input shaft, and the second driven gear is fixed to the second input shaft, the first driving gear is meshed with the first driven gear at a reduced speed to transmit the first output shaft movement to the first input shaft, and the second driving gear is meshed with the second driven gear at a reduced speed to transmit the second output shaft movement to the second input shaft.

2. The motion transmission device according to claim 1, wherein one of the two longitudinal beams corresponds to a longitudinal front beam with respect to the front of the shed of the jacquard machine and the other corresponds to a longitudinal rear beam with respect to the rear of the shed of the jacquard machine, characterized in that: The first box shell is fastened to one side of the longitudinal rear cross beam and is located outside the top of one side of the weaving area of ​​the loom, and the second box shell is fastened to the other side of the longitudinal rear cross beam and is located outside the top of the other side of the weaving area of ​​the loom.

3. The motion transmission device according to claim 1, wherein one of the two longitudinal beams corresponds to a longitudinal front beam with respect to the front of the shed of the jacquard machine and the other corresponds to a longitudinal rear beam with respect to the rear of the shed of the jacquard machine, characterized in that: The first box shell is fastened to one side of the longitudinal front crossbeam and is located outside the top of one side of the weaving area of ​​the loom, and the second box shell is fastened to the other side of the longitudinal front crossbeam and is located outside the top of the other side of the weaving area of ​​the loom.

4. The motion transmission device according to claim 1, wherein one of the two longitudinal beams corresponds to a longitudinal front beam with respect to the front of the shed of the jacquard machine and the other corresponds to a longitudinal rear beam with respect to the rear of the shed of the jacquard machine, characterized in that: The first box shell and the second box shell are arranged crosswise, one of the first box shell and the second box shell is fastened to one side of the longitudinal front beam and the other is fastened to the other side of the longitudinal rear beam, and the first box shell and the second box shell are both located outside the weaving area of ​​the loom.

5. The motion transmission device according to claim 1, 2, 3 or 4, characterized in that: The first box shell and the second box shell are both closable, and their respective cavities are used to store lubricants.

6. The motion transmission device according to claim 5, characterized in that: The first motor is fastened to the upper part of the first housing, and the second motor is fastened to the upper part of the second housing; the first input shaft is rotatably supported at the lower part of the first housing, and the second input shaft is rotatably supported at the lower part of the second housing.

7. The motion transmission device according to claim 6, characterized in that: The downward projection of the axis of the first output shaft coincides with the axis of the first input shaft, and the downward projection of the axis of the second output shaft coincides with the axis of the second input shaft.

8. The motion transmission device according to claim 7, characterized in that: The first housing and the second housing have a small volume at the upper part and a large volume at the lower part.

9. The motion transmission device according to claim 6, characterized in that: The first box shell and the second box shell are respectively provided with lugs on the two outer sides of their lower parts, and the lugs are provided with auxiliary through holes for the support parts to pass through and fasten them to the two longitudinal beams. Screw holes are provided at the lugs and incisions are provided along the radial direction of the auxiliary through holes, which can be tightened and loosened after tightening.

10. Jacquard machine, comprising a motion transmission device according to any one of claims 1 to 9.

Images