Crankshaft for warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a crankshaft for a warp knitting machine, which comprises a first connecting shaft and a second connecting shaft. The mounting shaft is fixed at one end of the first connecting shaft; the mounting base is fixed at one end of the second connecting shaft; the first connecting shaft is fixed on one side of the crank structure at the foremost end, the second connecting shaft is fixed on one side of the crank structure at the rearmost end, the crank structures and the main shafts are fixed in a staggered mode, and the first connecting shaft is fixed on one side of the crank structure at the rearmost end. According to the utility model, the connecting rod journal structure on the crankshaft is detachably connected with the crank, so that the connecting piece on the connecting rod journal is convenient to replace and convenient to use when being damaged due to breakage and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, in particular to a crankshaft for warp knitting machines. Background Art

[0002] Warp knitting machine is a warp knitting machine used to weave fabrics, mainly composed of weaving mechanism, bar slidable mechanism, warp feeding mechanism, pulling and winding mechanism and transmission mechanism. Today's warp knitting machines use the most advanced compound needle-groove needle, and the speed is very high. In the working process of high-speed warp knitting machines, the high speed is achieved through the movement of the crankshaft, which converts the rotation into reciprocating motion as needed.

[0003] After searching, the patent publication number CN113404764B is a crankshaft of a high-speed warp knitting machine and its manufacturing process, the crankshaft includes a first shaft end, a first fixed platform, a first crankshaft, a second crankshaft, a third crankshaft, a second fixed platform and a second shaft end; the cross-sections of the first shaft end and the second shaft end are both circular, the first fixed platform is arranged on the right side of the first shaft end, and the second fixed platform is arranged on the left side of the second shaft end; the right side of the first fixed platform is connected to the first crankshaft through the first connecting shaft; the left side of the second fixed platform is connected to the third crankshaft through the fourth connecting shaft; the right side of the first crankshaft is connected to the second crankshaft through the second connecting shaft; the right side of the second crankshaft is connected to the third crankshaft through the third connecting shaft.

[0004] In the process of implementing the above-mentioned scheme, it was found that the following problems in the prior art have not been well solved: in the prior art warp knitting machine crankshaft, the connecting rod journal and the crank are connected in a fixed integrated manner. When the connecting part on the connecting rod journal is broken or damaged, the connecting rod journal does not have good disassembly performance, making it inconvenient to replace the connecting part. Therefore, it is urgent to design a crankshaft for a warp knitting machine to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a crankshaft for a warp knitting machine to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crankshaft for a warp knitting machine, comprising a first connecting shaft and a second connecting shaft;

[0008] A mounting shaft, the mounting shaft being fixed to one end of the first connecting shaft;

[0009] A mounting base, the mounting base being fixed to one end of the second connecting shaft;

[0010] A plurality of crank structures and a plurality of main shafts, wherein the plurality of crank structures and the plurality of main shafts are fixed in a staggered manner, wherein the first connecting shaft is fixed to one side of the frontmost crank structure, and the second connecting shaft is fixed to one side of the rearmost crank structure;

[0011] The crank structure includes a first crank and a second crank, and mounting holes are provided at the top of the first crank and the top of the second crank, and a first mounting seat and a second mounting seat are respectively inserted into the two mounting holes, and a connecting rod shaft is fixed to one end of the first mounting seat and one end of the second mounting seat, and one end of the two connecting rod shafts are fitted together, and a fastening assembly is provided in the middle position of the first mounting seat, the connecting rod shaft and the second mounting seat.

[0012] Furthermore, the cross-section of the first mounting seat and the cross-section of the second mounting seat are both designed to be T-shaped, and the first mounting seat and the second mounting seat are respectively attached to the first crank and the second crank.

[0013] Furthermore, the inner walls of the two mounting holes are each provided with a plurality of reinforcement grooves, and the outer walls of the first mounting seat and the outer walls of the second mounting seat are each fixed with a plurality of blocks inserted into the reinforcement grooves.

[0014] Furthermore, the fastening assembly includes a cavity opened at one end of the first mounting seat, and the first mounting seat, the two connecting rod shafts and the middle position of the second mounting seat are all provided with a center hole communicating with the cavity, and a reinforcement rod is inserted into the cavity and the center hole, and a threaded hole communicating with the center hole is opened in the middle position of one end of the second mounting seat, and a threaded rod threadedly connected to the threaded hole is fixed at one end of the reinforcement rod, and a nut is fixed at the other end of the reinforcement rod.

[0015] Furthermore, an ejection spring is fixed to one end of the cavity, and an ejection ring is fixed to one end of the ejection spring. The ejection ring is attached to one side of the nut, a plurality of limiting holes are provided on the ejection ring, and a plurality of limiting rods passing through the limiting holes are fixed to one end of the cavity.

[0016] Furthermore, the outer walls of the two connecting rod shafts are sleeved with shaft sleeves, and the outer surfaces of the two connecting rod shafts are provided with multiple rows of first ball grooves distributed at equal distances, the inner walls of the first ball grooves are provided with first rolling balls, the other end of the first mounting seat and the other end of the second mounting seat are provided with second ball grooves distributed at equal distances, and the inner walls of the second ball grooves are provided with second rolling balls, and the shaft sleeves are rollingly arranged between the first rolling balls and the second rolling balls.

[0017] Furthermore, one end of the two shaft sleeves is respectively provided with positioning holes distributed at equal distances and fixed with positioning rods distributed at equal distances, and the positioning rods are inserted into the interior of the positioning holes.

[0018] Furthermore, one end of the installation shaft and one end of the installation base are both provided with a keyway, and a spline is fixed to the outer wall of the installation shaft.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, the first mounting seat, the second mounting seat, the connecting rod shaft and the fastening assembly are matched to form the connecting rod journal structure of the crankshaft of the warp knitting machine, and the connecting rod journal structure and the crank are connected in a detachable manner, so that when the connecting piece on the connecting rod journal is broken or damaged, it is convenient to replace and easy to use;

[0021] In the utility model, the ejection spring, the ejection ring and the limit rod can drive the ejection ring to be ejected when the screw rod is separated from the screw hole through the reset effect of the ejection spring, so as to facilitate the reinforcement rod to be quickly moved out of the center hole, thereby achieving faster disassembly and assembly performance;

[0022] In the utility model, by providing the connecting rod shaft, the first rolling ball, the second rolling ball and the shaft sleeve, the connecting piece on the connecting rod journal can be sleeved on the shaft sleeve, and the rolling performance of the first rolling ball and the second rolling ball makes the movement process of the shaft sleeve and the connecting rod journal connecting piece more convenient and without resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic diagram of the overall structure of a crankshaft for a warp knitting machine.

[0024] Figure 2 The present invention is a schematic diagram of the structure of a first crank and a second crank of a crankshaft for a warp knitting machine.

[0025] Figure 3 The present invention is a schematic diagram of the mounting hole and reinforcement groove structure of a crankshaft for a warp knitting machine.

[0026] Figure 4 The present invention is a schematic structural diagram of a first mounting seat and a second mounting seat of a crankshaft for a warp knitting machine.

[0027] Figure 5 for Figure 4 sectional view of .

[0028] Figure 6 The present invention is a schematic diagram of the structure of a first rolling ball and a second rolling ball of a crankshaft for a warp knitting machine.

[0029] Figure 7 A schematic diagram of the center hole and screw hole structure of a crankshaft for a warp knitting machine

[0030] Figure 8 The present invention is a schematic diagram of the positioning hole structure of a crankshaft for a warp knitting machine.

[0031] In the figure: 1. mounting shaft; 2. first connecting shaft; 3. crank structure; 301. first crank; 302. second crank; 303. bushing; 304. first mounting seat; 305. reinforcement rod; 306. mounting hole; 307. reinforcement groove; 308. block; 309. second mounting seat; 310. screw rod; 311. cavity; 312. connecting rod shaft; 313. first rolling ball; 314. second rolling ball; 315. first ball groove; 316. second ball groove; 317. ejection spring; 318. ejection ring; 319. limit rod; 320. positioning rod; 321. center hole; 322. screw hole; 323. positioning hole; 4. main shaft; 5. second connecting shaft; 6. mounting base; 7. keyway; 8. spline. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 8 , In an embodiment of the utility model, a crankshaft for a warp knitting machine includes a first connecting shaft 2 and a second connecting shaft 5;

[0034] An installation shaft 1, wherein the installation shaft 1 is fixed to one end of the first connecting shaft 2;

[0035] A mounting base 6, the mounting base 6 is fixed to one end of the second connecting shaft 5, one end of the mounting shaft 1 and one end of the mounting base 6 are both provided with a keyway 7, and a spline 8 is fixed to the outer wall of the mounting shaft 1;

[0036] A plurality of crank structures 3 and a plurality of main shafts 4, wherein the plurality of crank structures 3 and the plurality of main shafts 4 are fixed in an interlaced manner, wherein the first connecting shaft 2 is fixed to one side of the frontmost crank structure 3, and the second connecting shaft 5 is fixed to one side of the rearmost crank structure 3;

[0037] The crank structure 3 includes a first crank 301 and a second crank 302, and a mounting hole 306 is provided at the top of the first crank 301 and the top of the second crank 302, and a first mounting seat 304 and a second mounting seat 309 are respectively inserted into the two mounting holes 306, and the cross-section of the first mounting seat 304 and the cross-section of the second mounting seat 309 are both designed to be T-shaped, and the first mounting seat 304 and the second mounting seat 309 are respectively attached to the first crank 301 and the second crank 302, and one end of the first mounting seat 304 and one end of the second mounting seat 309 are fixed with a connecting rod shaft 312, and one end of the two connecting rod shafts 312 are attached, and a fastening component is provided in the middle position of the first mounting seat 304, the connecting rod shaft 312 and the second mounting seat 309, and the fastening component includes A cavity 311 is provided at one end of the first mounting seat 304, and a center hole 321 communicating with the cavity 311 is provided in the middle position of the first mounting seat 304, the two connecting rod shafts 312 and the second mounting seat 309, and a reinforcement rod 305 is inserted into the cavity 311 and the center hole 321. A threaded hole 322 communicating with the center hole 321 is provided in the middle position of one end of the second mounting seat 309, and a threaded rod 310 threadedly connected to the threaded hole 322 is fixed to one end of the reinforcement rod 305, and a nut is fixed to the other end of the reinforcement rod 305. By disassembling the threaded rod 310 in the fastening assembly, the connecting rod journal structure can be easily disassembled on the first crank 301 and the second crank 302, so that damaged connecting parts on the connecting rod journal can be replaced conveniently, and it is easy to use.

[0038] Specifically, the inner walls of the two mounting holes 306 are each provided with a plurality of reinforcement grooves 307, and the outer walls of the first mounting seat 304 and the outer walls of the second mounting seat 309 are each fixed with a plurality of clamping blocks 308 inserted into the reinforcement grooves 307. The clamping action of the clamping blocks 308 and the reinforcement grooves 307 ensures the stability of the first mounting seat 304 and the second mounting seat 309 in the mounting hole 306, thereby ensuring the stability of the entire connecting rod journal.

[0039] Specifically, an ejection spring 317 is fixed at one end of the cavity 311, and an ejection ring 318 is fixed at one end of the ejection spring 317. The ejection ring 318 is attached to one side of the nut. A plurality of limiting holes are provided on the ejection ring 318, and a plurality of limiting rods 319 passing through the limiting holes are fixed at one end of the cavity 311. The ejection ring 318 is ejected by the reset action of the ejection spring 317, so that the reinforcement rod 305 can be quickly moved out of the center hole 321 for quick and convenient disassembly.

[0040] Specifically, the outer walls of the two connecting rod shafts 312 are sleeved with shaft sleeves 303, and the outer surfaces of the two connecting rod shafts 312 are provided with multiple rows of first ball grooves 315 distributed at equal distances, and the inner walls of the first ball grooves 315 are provided with first rolling balls 313, and the other end of the first mounting seat 304 and the other end of the second mounting seat 309 are provided with second ball grooves 316 distributed at equal distances, and the inner walls of the second ball grooves 316 are provided with second rolling balls 314, and the shaft sleeves 303 are rollingly arranged between the first rolling balls 313 and the second rolling balls 314. One end of the two sleeves 303 is respectively provided with equidistantly distributed positioning holes 323 and equidistantly distributed positioning rods 320, and the positioning rods 320 are inserted into the positioning holes 323, so that the connecting piece on the connecting rod journal can be sleeved on the sleeve 303. The rolling performance of the first ball 313 and the second ball 314 makes the movement of the sleeve 303 and the connecting rod journal connecting piece more convenient and resistance-free, and the reinforcement effect of the positioning rod 320 and the positioning hole 323 ensures the stable connection of the two sleeves 303.

[0041] The working principle of the utility model is as follows: when in use, the crankshaft of the entire warp knitting machine is composed of the mounting shaft 1, the first connecting shaft 2, multiple crank structures 3, multiple main shafts 4, the second connecting shaft 5 and the mounting base 6, and the connecting rod journal structure of the warp knitting machine crankshaft is composed of the first mounting seat 304, the second mounting seat 309, the connecting rod shaft 312 and the fastening assembly. By disassembling the screw rod 310 in the fastening assembly, the connecting rod journal structure is easy to disassemble on the first crank 301 and the second crank 302, which is convenient for replacing the damaged connecting parts on the connecting rod journal. At this time, the ejection ring 318 is also driven to be ejected by the reset effect of the ejection spring 317, so as to facilitate pushing the reinforcement rod 305 to be quickly removed from the center hole 321, so that the disassembly is faster, and the connecting part on the connecting rod journal can be sleeved on the sleeve 303. The rolling performance of the first rolling ball 313 and the second rolling ball 314 makes the movement process of the sleeve 303 and the connecting rod journal connecting part more convenient.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A crankshaft for a warp knitting machine, characterized in that: It comprises a first connecting shaft (2) and a second connecting shaft (5); A mounting shaft (1), wherein the mounting shaft (1) is fixed to one end of the first connecting shaft (2); A mounting base (6), wherein the mounting base (6) is fixed to one end of the second connecting shaft (5); A plurality of crank structures (3) and a plurality of main shafts (4), wherein the plurality of crank structures (3) and the plurality of main shafts (4) are fixed in an interlaced manner, wherein the first connecting shaft (2) is fixed to one side of the crank structure (3) at the front end, and the second connecting shaft (5) is fixed to one side of the crank structure (3) at the rear end; The crank structure (3) comprises a first crank (301) and a second crank (302), the top of the first crank (301) and the top of the second crank (302) are both provided with mounting holes (306), the first mounting seat (304) and the second mounting seat (309) are respectively inserted into the two mounting holes (306), and one end of the first mounting seat (304) and one end of the second mounting seat (309) are both fixed with a connecting rod shaft (312), one end of the two connecting rod shafts (312) are fitted together, and a fastening component is provided in the middle position of the first mounting seat (304), the connecting rod shaft (312) and the second mounting seat (309).

2. A crankshaft for a warp knitting machine according to claim 1, characterized in that: The cross-section of the first mounting seat (304) and the cross-section of the second mounting seat (309) are both designed to be T-shaped, and the first mounting seat (304) and the second mounting seat (309) are respectively attached to the first crank (301) and the second crank (302).

3. A crankshaft for a warp knitting machine according to claim 2, characterized in that: The inner walls of the two mounting holes (306) are each provided with a plurality of reinforcement grooves (307), and the outer walls of the first mounting seat (304) and the outer walls of the second mounting seat (309) are each fixed with a plurality of clamping blocks (308) inserted into the reinforcement grooves (307).

4. A crankshaft for a warp knitting machine according to claim 3, characterized in that: The fastening assembly comprises a cavity (311) formed at one end of a first mounting seat (304), and a center hole (321) communicating with the cavity (311) is formed in the middle of the first mounting seat (304), the two connecting rod shafts (312) and the second mounting seat (309), a reinforcing rod (305) is inserted into the cavity (311) and the center hole (321), a threaded hole (322) communicating with the center hole (321) is formed in the middle of one end of the second mounting seat (309), a threaded rod (310) threadedly connected to the threaded hole (322) is fixed to one end of the reinforcing rod (305), and a nut is fixed to the other end of the reinforcing rod (305).

5. A crankshaft for a warp knitting machine according to claim 4, characterized in that: An ejection spring (317) is fixed to one end of the cavity (311), and an ejection ring (318) is fixed to one end of the ejection spring (317). The ejection ring (318) is attached to one side of the nut. A plurality of limiting holes are formed on the ejection ring (318), and a plurality of limiting rods (319) passing through the limiting holes are fixed to one end of the cavity (311).

6. A crankshaft for a warp knitting machine according to claim 5, characterized in that: The outer walls of the two connecting rod shafts (312) are sleeved with shaft sleeves (303), and the outer surfaces of the two connecting rod shafts (312) are provided with multiple rows of first ball grooves (315) distributed at equal distances, and the inner walls of the first ball grooves (315) are provided with first rolling balls (313) that can move, and the other end of the first mounting seat (304) and the other end of the second mounting seat (309) are provided with second ball grooves (316) distributed at equal distances, and the inner walls of the second ball grooves (316) are provided with second rolling balls (314) that can move, and the shaft sleeves (303) are rollingly arranged between the first rolling balls (313) and the second rolling balls (314).

7. A crankshaft for a warp knitting machine according to claim 6, characterized in that: One end of the two shaft sleeves (303) is respectively provided with positioning holes (323) distributed at equal distances and fixed with positioning rods (320) distributed at equal distances, and the positioning rods (320) are inserted into the interior of the positioning holes (323).

8. A crankshaft for a warp knitting machine according to claim 1, characterized in that: One end of the installation shaft (1) and one end of the installation base (6) are both provided with a keyway (7), and a spline (8) is fixed to the outer wall of the installation shaft (1).

Images