Leno-selvedge carrier gear transmission structure of weaving machine

Abstract

The utility model discloses a loom leno selvedge carrier gear transmission structure which comprises a first shell, a second shell is arranged on one side of the first shell, a protective shell is fixedly installed between the first shell and the second shell through bolts, and a sealing cover is installed on the side surface of one end of the first shell and the side surface of one end of the second shell in a clamped mode. Displacement mechanisms are arranged in the first shell and the second shell, and the service life of the carrier gear is prolonged by changing the meshing position of the carrier gear and the driving gear and the meshing position of the carrier gear and the driven gear. According to the leno-selvedge carrier gear transmission structure of the weaving machine, the carrier gear can alternately pass through different parts to be in meshing transmission with the driving gear and the driven gear in a manner that the carrier gear reciprocates at proper time in the rotating process, so that gear blocks on the surface of the carrier gear can be fully cooled, and the service life of the carrier gear is prolonged. Therefore, tooth blocks on the surface of the carrier gear are helped to reduce metal fatigue, and the service life of the carrier gear is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of a loom selvedge transmission structure, in particular to a loom selvedge bridge gear transmission structure. Background Art

[0002] The principle of loom selvedge is to tightly weave the fibers on the edge of the cloth together through a series of transmission mechanisms and weaving mechanisms. The working principle of the selvedge machine is relatively simple. When the power is transmitted to the weaving mechanism through the transmission system, the needle disk begins to rotate, driving the weaving needles to weave. The weaving needles clamp the fibers of the cloth and weave the fibers together through the movement of the weaving mechanism to form a tight selvedge. The bridge gear, also known as the cross-axis gear, is a gear used to connect the transmission shaft to the output shaft. It is usually located between two gear trains, receiving power from the transmission device on one side and then outputting it to the output device on the other side. The bridge gear is also called a "cross-axis gear" because its transmission device and output device are not on the same axis. The bridge gear is a key component for realizing power transmission. It outputs power from the transmission device to the output device. The speed and direction of the two are made the same, so as to achieve the transmission function. The bridge gear connects the transmission device and the output device between the two gear trains. The transmission device provides power, and the output device converts the power into corresponding mechanical action. It is used in mechanical equipment such as heavy machinery and automobiles. Because different devices in the wheel train often have different speed requirements, it is necessary to use a transmission to achieve drive. The bridge gear can be used to reduce the deviation and jump in power transmission when driving devices with different speeds, thereby achieving smooth transfer and transmission of speed. However, since the bridge gear meshes with the gears on both sides at the same time and bears the load of power transmission, the tooth blocks of the bridge gear are more prone to metal fatigue caused by long-term load than the tooth blocks of traditional single-sided connected gears, which is not conducive to extending the service life of the bridge gear. Summary of the invention

[0003] The utility model aims to provide a loom hem bridge gear transmission structure to solve the problem of metal fatigue of the bridge gear during long-term continuous use proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a loom hem bridge gear transmission structure, comprising a first shell, a second shell is arranged on one side of the first shell, and a protective shell is fixedly installed between the first shell and the second shell by bolts, and a sealing cover is clamped and installed on the side surfaces of one end of the first shell and the second shell, a rotating driving gear and a driven gear are installed inside the protective shell, a driving shaft is fixedly connected to the outer surface of the driving gear, and a driven shaft is fixedly connected to the outer surface of the driven gear, the side surfaces of the first shell and the second shell are penetrated by the bridge gear, and the bridge gear is rotatably connected to the first shell and the second shell respectively through a supporting bearing, and the bridge gear is meshed with the driving gear and the driven gear, and a displacement mechanism is arranged inside the first shell and the second shell, and the service life of the bridge gear is increased by changing the meshing position of the bridge gear with the driving gear and the driven gear.

[0005] Preferably, the displacement mechanism includes: a sliding plate, which is slidably mounted inside the first shell and the second shell, and a rotating screw is mounted on the inner surfaces of the first shell and the second shell, and one end of the screw is fixedly connected to a contact wheel, an electric push rod is fixedly mounted on the inner side surfaces of the first shell and the second shell, and a rotating intermediate wheel is mounted on one end of the electric push rod, and a rotating reversing wheel is mounted on the inner side surface of the second shell.

[0006] By adopting the above technical solution, the screw rods on both sides can be driven by the driving shaft to rotate in different directions.

[0007] Preferably, the sliding plate is rotationally connected to the bridge gear, and the sliding plate is threadedly connected to the lead screw.

[0008] By adopting the above technical solution, the bridge gear can be pulled and slid by the sliding plate during the rotation process.

[0009] Preferably, the reversing wheel is located between the rotating wheel and the contact wheel, and the outer surface of the reversing wheel is in contact with the outer surface of the contact wheel.

[0010] By adopting the above technical solution, the reversing wheel can make the rotation direction of the screw rod in the second housing opposite to that of the driving shaft.

[0011] Preferably, the inner side surfaces of the first housing and the second housing are provided with a lubrication mechanism, and oil lubrication of the bridge gear is achieved through rotation and extrusion of the driven shaft.

[0012] By adopting the above technical solution, the bridge gear can be lubricated and cooled by the engine oil during the process of rotation and sliding.

[0013] Preferably, the lubrication mechanism includes: a pressure cylinder, which is fixedly arranged on the inner side surfaces of the first shell and the second shell, and a piston cylinder is fixedly arranged on the inner side surfaces of the first shell and the second shell on one side of the pressure cylinder, a one-way nozzle is installed on the upper end of the pressure cylinder, a one-way valve is installed on the lower end side surface of the piston cylinder, a sliding piston rod is installed inside the upper end of the piston cylinder, and a protrusion is fixedly arranged on the outer surface of one end of the driven shaft located inside the first shell and the second shell.

[0014] By adopting the above technical solution, the driven shaft can drive the convex block to rotate and squeeze the upper end of the piston rod.

[0015] Preferably, the internal cavities at the lower ends of the pressure cylinder and the piston cylinder are connected, the piston rod and the piston cylinder are connected by sliding friction, and the upper end of the piston rod is designed in a ball head shape, and the piston rod is located directly below the driven shaft, a spring is connected between the piston rod and the piston cylinder, the one-way nozzle is located directly below the one-way nozzle, the protrusion is located directly above the piston rod, and one end of the protrusion is designed in a ball head shape.

[0016] By adopting the above technical solution, the piston rod can draw in and spray out the engine oil through reciprocating sliding.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the gear transmission structure of the loom hem bridge:

[0018] 1. The bridge gear can be reciprocated in time during the rotation process, so that the bridge gear can alternately mesh with the driving gear and the driven gear through different positions, so that the tooth blocks on the surface of the bridge gear can be fully cooled, thereby helping the tooth blocks on the surface of the bridge gear to reduce the occurrence of metal fatigue and extend the service life of the bridge gear;

[0019] 2. Furthermore, by periodically squeezing the piston rod during the rotation of the driven shaft, the piston rod can slide back and forth under the support of the spring, so as to achieve the purpose of spraying the lubricating oil at the bottom of the first housing and the second housing upward to the surface of the bridge gear for lubrication and cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the connection section of the first shell, the second shell and the protective shell of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the second housing and the reversing wheel connected to the utility model;

[0023] Figure 4This is a schematic diagram of the three-dimensional structure of the connection between the screw rod and the contact wheel of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the bridge gear and the supporting bearing of the utility model;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving gear, the driven gear and the bridge gear connected in the utility model.

[0026] In the figure: 1. first housing; 2. second housing; 3. protective housing; 4. driving gear; 5. driving shaft; 6. driven gear; 7. driven shaft; 8. bridge gear; 9. supporting bearing; 10. sliding plate; 11. screw rod; 12. contact wheel; 13. electric push rod; 14. rotating wheel; 15. reversing wheel; 16. pressure cylinder; 17. piston cylinder; 18. one-way nozzle; 19. one-way valve; 20. piston rod; 21. bump. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-6 The utility model provides a technical solution: a gear transmission structure for a loom hem bridge. Embodiment 1

[0029] The present embodiment discloses: a first housing 1, a second housing 2 is arranged on one side of the first housing 1, and a protective housing 3 is fixedly installed between the first housing 1 and the second housing 2 by bolts, and a sealing cover is clamped and installed on the side surfaces of one end of the first housing 1 and the second housing 2, a rotating driving gear 4 and a driven gear 6 are installed inside the protective housing 3, a driving shaft 5 is fixedly connected to the outer surface of the driving gear 4, and a driven shaft 7 is fixedly connected to the outer surface of the driven gear 6, the side surfaces of the first housing 1 and the second housing 2 are penetrated by a bridge gear 8, and the bridge gear 8 is rotatably connected to the first housing 1 and the second housing 2 respectively through a supporting bearing 9, and the bridge gear 8 is meshed with the driving gear 4 and the driven gear 6, and a displacement mechanism is arranged inside the first housing 1 and the second housing 2, and the service life of the bridge gear 8 is increased by changing the meshing position of the bridge gear 8 with the driving gear 4 and the driven gear 6;

[0030] The displacement mechanism includes: a sliding plate 10, which is slidably mounted inside the first shell 1 and the second shell 2, and a rotating screw rod 11 is mounted on the inner side surface of the first shell 1 and the second shell 2, and one end of the screw rod 11 is fixedly connected to a contact wheel 12, an electric push rod 13 is fixedly mounted on the inner side surface of the first shell 1 and the second shell 2, and one end of the electric push rod 13 is mounted with a rotating intermediate wheel 14, and a rotating reversing wheel 15 is mounted on the inner side surface of the second shell 2;

[0031] The sliding plate 10 is rotationally connected to the bridge gear 8, and the sliding plate 10 is threadedly connected to the screw rod 11;

[0032] The reversing wheel 15 is located between the intermediate wheel 14 and the contact wheel 12, and the outer surface of the reversing wheel 15 is in contact with the outer surface of the contact wheel 12;

[0033] During the operation of the loom, the driving shaft 5 drives the driving gear 4 inside the protective shell 3 to rotate, and the driving gear 4 drives the driven gear 6 to rotate by supporting the rotating bridge gear 8 through the supporting bearing 9, and the driven gear 6 finally drives the driven shaft 7 to rotate to achieve the purpose of power output. During the process, the electric push rod 13 inside the first shell 1 starts to drive the rotating wheel 14 to move and at the same time fits with the outer surface of one end of the driving shaft 5 and the outer surface of the contact wheel 12 inside the first shell 1. At this time, the driving shaft 5 drives the contact wheel 12 to rotate in the same direction through the rotating wheel 14, and the contact wheel 12 drives the bridge gear 8 at one end of the sliding plate 10 to move toward the inside of the first shell 1 during the rotation process through the threaded connection between the screw rod 11 and the sliding plate 10. When the bridge gear 8 moves a certain distance into the first shell 1, the electric push rod 13 drives the rotating wheel 14 to slide and reset so that The bridge gear 8 stops moving, and then the electric push rod 13 inside the second shell 2 starts to drive the intermediate wheel 14 to move and fit with the outer surface of one end of the driving shaft 5 and the outer surface of the reversing wheel 15 inside the second shell 2. At this time, the driving shaft 5 drives the contact wheel 12 to rotate in the opposite direction through the intermediate wheel 14 and the reversing wheel 15, and the contact wheel 12 drives the bridge gear 8 at one end of the sliding plate 10 to move toward the inside of the second shell 2 during the rotation process through the threaded connection between the screw rod 11 and the sliding plate 10. After the bridge gear 8 moves a certain distance into the second shell 2, the electric push rod 13 drives the intermediate wheel 14 to slide and reset so that the bridge gear 8 no longer moves. In the continuous repetition of the above process, the bridge gear 8 continuously meshes with the driving gear 4 and the driven gear 6 through the tooth blocks at different positions to reduce the possibility of metal fatigue. Embodiment 2

[0034] This embodiment is based on the embodiment 1. The inner side surfaces of the first housing 1 and the second housing 2 are provided with a lubrication mechanism, and the oil lubrication of the bridge gear 8 is achieved through the rotation and extrusion of the driven shaft 7.

[0035] The lubrication mechanism includes: a pressure cylinder 16, which is fixedly arranged on the inner side surfaces of the first shell 1 and the second shell 2, and a piston cylinder 17 is fixedly arranged on the inner side surfaces of the first shell 1 and the second shell 2 on one side of the pressure cylinder 16, a one-way nozzle 18 is installed on the upper end of the pressure cylinder 16, a one-way valve 19 is installed on the lower end side surface of the piston cylinder 17, a sliding piston rod 20 is installed inside the upper end of the piston cylinder 17, and a convex block 21 is fixedly arranged on the outer surface of one end of the driven shaft 7 located inside the first shell 1 and the second shell 2;

[0036] The inner cavities at the lower ends of the pressure cylinder 16 and the piston cylinder 17 are connected, the piston rod 20 and the piston cylinder 17 are connected by sliding friction, and the upper end of the piston rod 20 is designed in a ball head shape, and the piston rod 20 is located directly below the driven shaft 7, a spring is connected between the piston rod 20 and the piston cylinder 17, the one-way nozzle 18 is located directly below the one-way nozzle 18, the bump 21 is located directly above the piston rod 20, and one end of the bump 21 is designed in a ball head shape;

[0037] During the rotation of the driven shaft 7, the driven shaft 7 periodically squeezes the piston rod 20 through the protrusion 21 at one end, and the piston rod 20 slides back and forth under the support of the spring between the piston rod 20 and the piston cylinder 17, so that the piston cylinder 17 can draw the engine oil pre-injected into the first housing 1 and the second housing 2 through the one-way valve 19 and spray it to the bridge gear 8 that is sliding and rotating back and forth through the one-way nozzle 18 at the upper end of the pressure cylinder 16, thereby achieving the purpose of cooling and lubricating the bridge gear 8.

[0038] 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 loom hem bridge gear transmission structure, comprising a first housing (1), a second housing (2) being provided on one side of the first housing (1), a protective housing (3) being fixedly mounted between the first housing (1) and the second housing (2) by bolts, and a sealing cover being mounted on one end side surfaces of the first housing (1) and the second housing (2), a rotatable driving gear (4) and a driven gear (6) being mounted inside the protective housing (3), a driving shaft (5) being fixedly connected to the outer surface of the driving gear (4), and a driven shaft (7) being fixedly connected to the outer surface of the driven gear (6), and characterized in that: The side surfaces of the first housing (1) and the second housing (2) are penetrated by a bridge gear (8), and the bridge gear (8) is rotatably connected to the first housing (1) and the second housing (2) respectively through a support bearing (9), and the bridge gear (8) is meshedly connected to both the driving gear (4) and the driven gear (6), and a displacement mechanism is provided inside the first housing (1) and the second housing (2), and the service life of the bridge gear (8) is increased by changing the meshing position of the bridge gear (8) with the driving gear (4) and the driven gear (6).

2. A loom selvedge bridge gear transmission structure according to claim 1, characterized in that: The displacement mechanism comprises: a sliding plate (10), the sliding plate (10) being slidably mounted inside a first shell (1) and a second shell (2), a rotating screw rod (11) being mounted on the inner side surfaces of the first shell (1) and the second shell (2), and one end of the screw rod (11) being fixedly connected to a contact wheel (12), an electric push rod (13) being fixedly mounted on the inner side surfaces of the first shell (1) and the second shell (2), and one end of the electric push rod (13) being mounted with a rotating intermediate wheel (14), and a rotating reversing wheel (15) being mounted on the inner side surface of the second shell (2).

3. A loom selvedge bridge gear transmission structure according to claim 2, characterized in that: The sliding plate (10) is rotationally connected to the bridge gear (8), and the sliding plate (10) is threadedly connected to the lead screw (11).

4. A loom selvedge bridge gear transmission structure according to claim 2, characterized in that: The reversing wheel (15) is located between the rotating wheel (14) and the contact wheel (12), and the outer surface of the reversing wheel (15) is in contact with the outer surface of the contact wheel (12).

5. The gear transmission structure for the selvedge bridge of a loom according to claim 1, characterized in that: Lubrication mechanisms are provided on the inner side surfaces of the first housing (1) and the second housing (2), and oil lubrication of the bridge gear (8) is achieved through the rotation and extrusion of the driven shaft (7).

6. A loom selvedge bridge gear transmission structure according to claim 5, characterized in that: The lubrication mechanism comprises: a pressure cylinder (16), the pressure cylinder (16) being fixedly arranged on the inner side surfaces of the first shell (1) and the second shell (2), and a piston cylinder (17) being fixedly arranged on the inner side surfaces of the first shell (1) and the second shell (2) on one side of the pressure cylinder (16), a one-way nozzle (18) being installed on the upper end of the pressure cylinder (16), a one-way valve (19) being installed on the lower side surface of the piston cylinder (17), a sliding piston rod (20) being installed inside the upper end of the piston cylinder (17), and a protrusion (21) being fixedly arranged on the outer surface of one end of the driven shaft (7) located inside the first shell (1) and the second shell (2).

7. A loom selvedge bridge gear transmission structure according to claim 6, characterized in that: The internal cavities at the lower ends of the pressure cylinder (16) and the piston cylinder (17) are connected, the piston rod (20) and the piston cylinder (17) are connected by sliding friction, and the upper end of the piston rod (20) is designed in a ball head shape, and the piston rod (20) is located directly below the driven shaft (7), a spring is connected between the piston rod (20) and the piston cylinder (17), the one-way nozzle (18) is located directly below the one-way nozzle (18), and the protrusion (21) is located directly above the piston rod (20), and one end of the protrusion (21) is designed in a ball head shape.

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