High-stability rapier loom
By using bearings instead of copper sleeves in the rapier loom and setting an annular oil groove and oil passage on the outer ring of the bearing, efficient filling of lubricating oil is achieved, solving the wear problem between the connecting rod and the crankshaft, and improving the operating stability and transmission stability.
Patent Information
- Application Number
- CN202422332917.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In existing rapier looms, the copper sleeve between the connecting rod and the crankshaft is seriously worn, resulting in unstable operation and frequent refueling.
A bearing is used instead of the copper sleeve, and an annular oil groove and oil passage are set up on the outer ring of the bearing. Lubricating oil is filled through the oil refueling port. The lubricating oil enters the oil groove and enters the inner side of the outer ring through the oil passage to lubricate the rolling element to reduce friction.
It improves the operating stability of the rapier loom, reduces wear, extends the service life of lubricating oil, and improves the smoothness of the transmission.
Smart Images
Figure CN223202017U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rapier loom with high stability, belonging to the technical field of textile machinery. Background Art
[0002] Rapier looms are widely used in various fields of the textile industry, including the production of clothing fabrics, home textile products, industrial textiles, etc. When working, a driving mechanism is required to drive the crankshaft to rotate. The crankshaft drives the swing arms, reed, etc. of the beating-up mechanism to cooperate and reciprocate through various transmission mechanisms. The transmission mechanism includes a connecting rod mechanism respectively connected to the crankshaft and the reed. Currently, a copper sleeve is arranged between the connecting rod and the crankshaft to achieve the rotational transmission between the crankshaft and the connecting rod. However, due to the large contact area between the copper sleeve and the crankshaft and the connecting rod, the friction force is also large, and it is easily worn, requiring frequent refueling, which affects the operating stability. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a rapier loom with high stability, in which a bearing is used to connect the connecting rod and the crankshaft, which is convenient for refueling, can reduce wear, and improve the operating stability, and can solve the deficiencies of the prior art.
[0004] The technical solution of the utility model is: a rapier loom with high stability, including a driving mechanism and a frame. A weft insertion mechanism and a beating-up mechanism are arranged on the frame. The weft insertion mechanism and the beating-up mechanism are mechanically driven to operate through the driving mechanism. The driving mechanism includes a crankshaft mechanism driven to rotate by a motor. A connecting rod is connected between the crankshaft mechanism and the beating-up mechanism, including a bearing. The crankshaft mechanism includes a U-shaped crankshaft. The U-shaped crankshaft includes a cross bar and side parts located on both sides of the cross bar. The connecting rod includes a connecting rod body and a connecting rod cover. After the connecting rod body and the connecting cover are connected, a card slot for accommodating the bearing is formed. The bearing is sleeved on the cross bar of the crankshaft. The connecting rod is connected to the bearing through the connection of the connecting rod body and the connecting rod cover. An annular oil groove is arranged on the outer peripheral wall of the outer ring of the bearing, and an oil passage is arranged on the outer ring. The oil passage connects the annular oil groove on the outer ring with the inner side of the outer ring. A fuel filling port communicating with the annular oil groove is arranged on the connecting rod.
[0005] Furthermore, a dust-proof ring is installed on the connecting rod, and the dust-proof ring is located on both sides of the bearing.
[0006] Furthermore, a cage is installed in the bearing, and rolling elements are installed on the cage.
[0007] Furthermore, the crankshaft is integrally cast. The outer ring of the bearing, the cage, and the dust-proof ring are all composed of two half bodies spliced left and right. An annular card slot for installing the cage is arranged on the inner periphery of the outer ring of the bearing.
[0008] It further includes a sleeve and a clamp. The sleeve is rolled from a metal sheet and is rolled on the crossbar and fixed by the clamp. The shaft ring is sleeved on the sleeve and rolls with it.
[0009] Furthermore, the clamp is a pair, located on both sides of the connection between the connecting rod and the crankshaft, preventing the connecting rod from moving axially along the crankshaft.
[0010] By implementing the utility model, a bearing sleeve is arranged on the crankshaft, and the connecting rod body of the connecting rod is connected to the connecting rod cover to form a groove that confines the bearing. The copper sleeve is replaced by the bearing, and an annular oil groove is provided on the outer peripheral wall of the outer ring of the bearing, and an oil channel is provided on the outer ring. The oil channel connects the annular oil groove of the outer ring with the inner side of the outer ring. A refueling port connected to the annular oil groove is provided on the connecting rod. Lubricating oil is added through the refueling port. The lubricating oil first enters the annular oil groove and then enters the inner side of the outer ring through the oil channel to lubricate the rolling elements, which is convenient for refueling, helps to reduce friction, and improves the stability of operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional diagram of a rapier loom;
[0012] Figure 2 for Figure 1 A magnified view of point A;
[0013] Figure 3 This is the front view of the connection between the connecting rod and the crankshaft;
[0014] Figure 4 for Figure 3 B-direction sectional view;
[0015] Figure 5 It is a top view of the connection between the connecting rod and the crankshaft;
[0016] Figure 6 for Figure 5 C-section view;
[0017] Figure 7 This is an exploded view of the connection between the connecting rod and the crankshaft.
[0018] As shown in the figure: frame 1; beating-up mechanism 2; connecting rod 3; bearing 4; crankshaft 5; connecting rod body 6; connecting cover 7; outer ring 8; annular oil groove 9; oil channel 10; oil filling port 11; dust ring 12; retainer 13; rolling element 14; sleeve 15; clamp 16. DETAILED DESCRIPTION
[0019] The embodiment of the present utility model: Figures 1 to 7As shown in the figure, a rapier loom with high stability includes a driving mechanism and a frame 1. On the frame 1, there are a weft insertion mechanism and a beating-up mechanism 2. The weft insertion mechanism and the beating-up mechanism 27 are mechanically driven and operated by the driving mechanism. The driving mechanism includes a crankshaft mechanism driven by a motor. There is a connecting rod 3 connected between the crankshaft mechanism and the beating-up mechanism 27. It includes a bearing 4. The crankshaft mechanism includes a U-shaped crankshaft 5. The U-shaped crankshaft 5 includes a cross bar and side parts located on both sides of the cross bar. The connecting rod 3 includes a connecting rod body 6 and a connecting rod cap 7. After the connecting rod body 6 and the connecting cover 7 are connected, a clamping groove for accommodating the bearing 4 is formed. During installation, the bearing 4 is sleeved on the cross bar of the crankshaft 5. After the large end of the connecting rod 3 is connected by the connecting rod body 6 and the connecting rod cap 7, the bearing 4 is buckled inside. The other end of the connecting rod 3 is connected to the beating-up mechanism. An annular oil groove 9 is provided on the outer peripheral wall of the outer ring 8 of the bearing 4. An oil passage 10 is provided on the outer ring 8. The oil passage 10 connects the annular oil groove 9 of the outer ring 8 with the inner side of the outer ring 8. There is an oil filling port 11 on the connecting rod 3 that is connected to the annular oil groove 9. The bearing 4 is used instead of a copper sleeve, and lubricating oil is filled through the oil filling port 11. The lubricating oil first enters the annular oil groove 9 and then enters the inner side of the outer ring 8 through the oil passage 10 to lubricate the rolling elements, which conveniently realizes the lubrication of the bearing 4, helps to reduce friction, and improves the running stability.
[0020] As a preference, a dust-proof ring 12 is installed on the connecting rod 3. The dust-proof ring 12 is clamped in the clamping groove and is located on both sides of the bearing 4. The dust-proof ring 12 plays a blocking role, preventing external debris from entering, maintaining the cleanliness of the lubricating oil, preventing the volatilization and extrusion of the lubricating oil, and prolonging the service life of the lubricating oil.
[0021] As a preference, a cage 13 is installed inside the bearing 4. The cage 13 is equipped with rolling elements 14. The cage 13 maintains the stable operation and distribution of the rolling elements 14, improves the rolling conditions of the bearing 4 and its load-bearing capacity, and enhances the running stability.
[0022] As a preference, if the crankshaft is a split structure, that is, the cross bar and the side parts are not integrally cast, but are connected and fixed later. The bearing 4 can be integrally sleeved on the cross bar, and then the cross bar and the side parts are fixed. However, to ensure the strength and precision of the crankshaft 5, the crankshaft 5 in this application is integrally cast. Due to the obstruction of the side parts, the integral bearing cannot be installed on the cross bar. Therefore, the outer ring 8, the cage 13, and the dust-proof ring 12 of the bearing 4 are all composed of two half-bodies spliced together. There is an annular clamping groove for installing the cage 13 on the inner circumference of the outer ring 8 of the bearing 4. During installation, the cage 13 of the bearing 4 and the outer ring 8 are sleeved on the cross bar of the crankshaft after being spliced by two half-bodies. The cage 13 is limited in the annular clamping groove of the outer ring 8. The dust-proof ring 12 is also placed on both sides of the bearing 4 after being spliced by two half-bodies. Then the connecting rod body 6 and the connecting rod cap 7 are connected to limit the bearing 4 and the dust-proof rings 12 on both sides in the clamping groove to complete the installation.
[0023] As a preferred embodiment, it includes a sleeve 15 and a hoop 16. The sleeve 15 is rolled from a high-strength metal sheet, rolled on the cross bar and fastened by the hoop 16. The bearing 4 is then spliced with the outer ring 8 through two halves through the retaining frame 13 and then sleeved on the sleeve 15 to roll with it. The sleeve 15 is fastened and fixed by the hoop 16 so that the sleeve 15 is firmly connected to the crankshaft 5 and will not move on the crankshaft 5, thereby improving stability. The rolling element 14 of the bearing 4 contacts the sleeve 15 but not the cross bar of the crankshaft, so that the crankshaft will not wear and play a role in protecting the crankshaft. The hoop 16 is a pair, located on both sides of the connection between the connecting rod 3 and the crankshaft 5. On the basis of fixing the sleeve, it prevents the connecting rod 3 from moving axially along the crankshaft, thereby improving the stability of the transmission.
Claims
1. A high-stability rapier loom, comprising a drive mechanism and a frame, wherein a weft insertion mechanism and a beating-up mechanism are provided on the frame, wherein the weft insertion mechanism and the beating-up mechanism are mechanically driven by the drive mechanism, wherein the drive mechanism comprises a crankshaft mechanism driven by a motor, wherein a connecting rod is connected between the crankshaft mechanism and the beating-up mechanism, and wherein: It includes a bearing. The crankshaft mechanism comprises a U-shaped crankshaft. The U-shaped crankshaft includes a cross bar and side parts located on both sides of the cross bar. The connecting rod comprises a connecting rod body and a connecting rod cap. After the connecting rod body is connected to the connecting cap, a clamping groove for accommodating the bearing is formed. The bearing is sleeved on the cross bar of the crankshaft. The connecting rod is connected to the bearing after the connecting rod body is connected to the connecting rod cap. An annular oil groove is provided on the outer peripheral wall of the outer ring of the bearing, and an oil passage is provided on the outer ring. The oil passage connects the annular oil groove on the outer ring with the inner side of the outer ring. A fuel filling port communicating with the annular oil groove is provided on the connecting rod.
2. The high stability rapier loom according to claim 1, characterized in that: A dust-proof ring is installed on the connecting rod, and the dust-proof ring is located on both sides of the bearing.
3. The high stability rapier loom according to claim 2, characterized in that: A cage is installed in the bearing, and rolling elements are installed on the cage.
4. The high stability rapier loom according to claim 3, characterized in that: The crankshaft is integrally cast. The outer ring of the bearing, the cage and the dust-proof ring are all composed of two half bodies spliced on the left and right. An annular clamping groove for installing the cage is provided on the inner circumference of the outer ring of the bearing.
5. The high stability rapier loom according to claim 4, characterized in that: It includes a sleeve and a hoop. The sleeve is formed by rolling a metal sheet and is rolled on the cross bar and fixed tightly by the hoop. The shaft ring is sleeved on the sleeve and is in rolling fit with it.
6. The high stability rapier loom according to claim 5, characterized in that: The hoops are in pairs and are located on both sides of the connection between the connecting rod and the crankshaft to prevent the connecting rod from moving axially along the crankshaft.