Connection transmission mechanism of translation portal crane and control method

Abstract

The invention discloses a linkage transmission mechanism of a translation portal crane and a control method, the linkage transmission mechanism comprises a reduction gearbox body, a high-voltage brushless motor, a motor spline, a worm, a spline housing and a worm gear rod, the worm is arranged in the reduction gearbox body, the high-voltage brushless motor is arranged at the upper end of the reduction gearbox body, and the motor spline is arranged on the worm. The motor spline is arranged at the lower end of the high-voltage brushless motor, the spline housing is arranged at the upper end of the worm, the motor spline is matched with the spline housing, the worm gear rod is horizontally arranged on the rear side of the worm, a worm gear is arranged on the worm gear rod, the worm gear is matched with the worm, and the worm gear is arranged on the worm gear rod. And a driving wheel is arranged at the right end of the worm gear rod. According to the linkage transmission mechanism of the translation portal crane and the control method, the linkage transmission mechanism is simple in structure, high in strength and long in service life, generated impact force is evenly distributed to each spline tooth of the motor spline and each spline tooth of the spline housing through a flexible linkage structure of the motor spline and the spline housing, the buffering performance is excellent, and the fatigue strength is better.

Description

Technical Field

[0001] The invention belongs to the field of sliding door machines, and in particular relates to a connecting transmission mechanism and a control method of a sliding door machine. Background Art

[0002] The existing sliding door machine usually includes a motor and a worm gear reduction transmission mechanism. After the motor is powered on, it drives the output gear to rotate through the worm gear reduction transmission mechanism, thereby driving the movement of the sliding door. Since the speed of most sliding door machine motors is not very fast, they are basically rigid connections with hard collisions, and most of them use elastic pins or cylindrical pins as connecting parts. Therefore, the impact force on the connecting parts at the moment of motor rotation is directly applied to the elastic pins or cylindrical pins. Since the elastic pins and cylindrical pins have certain impact fatigue, as well as the inherent yield strength and life of metals. Once this impact occurs more times, it is bound to bring certain hidden dangers and direct damage. In addition, the speed requirements for sliding door machines in the market are getting higher and higher, and the weight of doors is getting heavier. Following this trend, the motors are getting faster and faster; the strength is getting bigger and bigger. Therefore, the test on the connection mechanism is getting bigger and bigger. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a connecting transmission mechanism and a control method for a sliding door machine.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A connecting transmission mechanism of a sliding door machine includes a reduction gear box, a high-voltage brushless motor, a motor spline, a worm, a spline sleeve and a worm gear, wherein the worm is arranged in the reduction gear box, the high-voltage brushless motor is arranged at the upper end of the reduction gear box, the motor spline is arranged at the lower end of the high-voltage brushless motor, the spline sleeve is arranged at the upper end of the worm, the motor spline matches the spline sleeve, the worm gear is horizontally arranged at the rear side of the worm, the worm gear is provided with a worm wheel, the worm wheel matches the worm, and a driving wheel is provided at the right end of the worm gear.

[0006] Furthermore, a first limiting groove is provided in the middle part of the worm gear, the worm wheel matches the first limiting groove, a first limiting ring is provided at the left end of the first limiting groove, the first limiting ring matches the left end of the worm wheel, and a second limiting ring is provided at the right end of the first limiting groove, the second limiting ring matches the right end of the worm wheel.

[0007] Furthermore, a first socket is provided at the left end of the worm gear, a first release rod, a first release key and a first spring are provided in the first socket, the first release rod is arranged at the right end of the first socket, the first spring is arranged at the right end of the first socket, the first release key is arranged between the first release rod and the first spring, a first release hole is provided in the middle part of the worm gear, the first release key matches with the first release hole, a first release groove is provided at the right end of the worm wheel, a first fixing groove is provided at the bottom of the first release groove, and the first fixing groove matches with the first release key.

[0008] Furthermore, a release support frame is provided at the left end of the reduction gear box body, a release wrench is hingedly provided at the left end of the release support frame, a cam portion is provided at the lower end of the release wrench, a first through hole is provided at the right end of the release support frame, the first through hole matches the first socket, and the left end of the first release rod passes through the first through hole and matches the cam portion.

[0009] Furthermore, the motor splines and spline sleeves are made of high-strength nylon plus glass fiber material.

[0010] A control method for a connecting transmission mechanism of a sliding door machine comprises the following steps:

[0011] Step S1: Assemble the connection transmission mechanism of the sliding door machine, start the high-voltage brushless motor to drive the motor spline to rotate, and the motor spline rotates to drive the spline sleeve to rotate, thereby driving the worm to rotate in the reduction box body, and the impact force generated by the connection is evenly distributed to each spline tooth;

[0012] Step S2: The rotation of the worm drives the worm wheel to rotate, thereby driving the worm wheel to rotate in the reduction gear box, and then driving the driving wheel to rotate, thereby driving the sliding door to open or close.

[0013] The present invention discloses a connecting transmission mechanism and control method for a sliding door machine, which has the advantages of simple structure, high strength and long service life compared with the prior art. The flexible connection structure of the motor spline and the spline sleeve is used to drive the rotation of the worm gear, thereby controlling the opening or closing of the sliding door. The impact force can be evenly distributed to each spline tooth of the motor spline and the spline sleeve, so the buffering performance is excellent and the fatigue strength is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a preferred embodiment provided by the present invention.

[0015] Figure 2 It is a cross-sectional schematic diagram from one viewing angle of a preferred embodiment provided by the present invention.

[0016] Figure 3It is a cross-sectional schematic diagram from another viewing angle of a preferred embodiment provided by the present invention.

[0017] Figure 4 It is a schematic structural diagram of a spline sleeve according to a preferred embodiment of the present invention.

[0018] Figure 5 It is a schematic structural diagram of a motor spline according to a preferred embodiment of the present invention.

[0019] Figure 6 It is a schematic structural diagram of a worm gear according to a preferred embodiment of the present invention.

[0020] Figure 7 It is a cross-sectional schematic diagram of a worm gear according to a preferred embodiment of the present invention.

[0021] The accompanying drawings include: 100, release support frame; 110, release wrench; 111, cam portion; 120, release key; 130, release twist piece; 140, first through hole; 200, reduction gear box; 210, high-voltage brushless motor; 211, spline; 220, worm; 221, spline sleeve; 230, worm gear; 231, first limiting groove; 232, first release hole; 233, first plug hole; 240, worm gear; 241, first release groove; 242, first fixing groove; 250, driving wheel; 261, first release rod; 262, first spring; 263, first release key; 271, first limiting ring; 272, second limiting ring. DETAILED DESCRIPTION

[0022] The present invention discloses a connecting transmission mechanism and a control method of a sliding door machine. The specific implementation of the present invention will be further described below in conjunction with preferred embodiments.

[0023] See attached figure Figure 1-7 , Figure 1 is a schematic structural diagram of a preferred embodiment provided by the present invention, Figure 2 is a cross-sectional schematic diagram of a preferred embodiment provided by the present invention from one viewing angle, Figure 3 is a cross-sectional schematic diagram from another viewing angle of a preferred embodiment provided by the present invention, Figure 4 is a schematic structural diagram of a spline sleeve 221 of a preferred embodiment provided by the present invention, Figure 5 is a schematic structural diagram of a motor spline 211 in a preferred embodiment of the present invention. Figure 6 is a schematic structural diagram of a worm gear 230 in a preferred embodiment of the present invention. Figure 7 2 is a cross-sectional schematic diagram of the worm gear 230 according to the preferred embodiment of the present invention.

[0024] Preferred embodiments.

[0025] The present embodiment provides a connection transmission mechanism of a sliding door machine, including a reduction housing 200, a high-voltage brushless motor 210, a motor spline 211, a worm 220, a spline sleeve 221 and a worm gear 230, wherein the worm 220 is arranged in the reduction housing 200, the high-voltage brushless motor 210 is arranged at the upper end of the reduction housing 200, the motor spline 211 is arranged at the lower end of the high-voltage brushless motor 210, the spline sleeve 221 is arranged at the upper end of the worm 220, the motor spline 211 is matched with the spline sleeve 221, the worm gear is horizontally arranged at the rear side of the worm 220, a worm wheel 240 is provided on the worm gear 230, the worm wheel 240 is matched with the worm 220, and a driving wheel 250 is provided at the right end of the worm gear 230.

[0026] Further, a first limiting groove 231 is provided in the middle of the worm gear 230, and the worm wheel 240 matches the first limiting groove 231. A first limiting ring 271 is provided at the left end of the first limiting groove 231, and the first limiting ring 271 matches the left end of the worm wheel 240. A second limiting ring 272 is provided at the right end of the first limiting groove 231, and the second limiting ring 272 matches the right end of the worm wheel 240. The first limiting ring 271 and the second limiting ring 272 are used to limit the worm wheel 240 in the first limiting groove 231, to ensure the stability of the worm wheel 240, that is, to ensure the matching of the worm wheel 240 and the worm 220.

[0027] Furthermore, a first socket 233 is provided at the left end of the worm gear 230, and a first release rod 261, a first release key 263 and a first spring 262 are provided in the first socket 233, the first release rod 261 is arranged at the right end of the first socket 233, the first spring 262 is arranged at the right end of the first socket 233, the first release key 263 is arranged between the first release rod 261 and the first spring 262, a first release hole 232 is provided in the middle part of the worm gear 230, the first release key 263 matches the first release hole 232, and a first release groove 241 is provided at the right end of the worm wheel 240, and a first fixing groove 242 is provided at the bottom of the first release groove 241, and the first fixing groove 242 matches the first release key 263. The first release rod 261 pushes the first release key 263 to move to the right, so that the first release key 263 moves out of the first fixing groove 242 and into the first release groove 241, so that when the worm wheel 240 rotates, it cannot drive the worm wheel 230 to rotate, and then the first driving wheel 250 will not rotate, thereby achieving the release of the sliding door machine.

[0028] Further, a release support frame 100 is provided at the left end of the reduction box 200, a release wrench 110 is hingedly provided at the left end of the release support frame 100, a cam portion 111 is provided at the lower end of the release wrench 110, a first through hole 140 is provided at the right end of the release support frame 100, the first through hole 140 matches the first plug hole 233, and the left end of the first release rod 261 passes through the first through hole 140 and matches the cam portion 111. When the release wrench 110 is turned downward, the first release rod 261 can be pressed to move rightward through the cam portion 111, that is, the first release key 263 is pushed to move rightward.

[0029] Furthermore, the motor spline 211 and the spline sleeve 221 are both made of high-strength nylon plus glass fiber material, which has strong impact resistance, long fatigue life, and relatively low material cost.

[0030] A control method for a connecting transmission mechanism of a sliding door machine comprises the following steps:

[0031] Step S1: Assemble the connecting transmission mechanism of the sliding door machine, start the high-voltage brushless motor 210 to drive the motor spline 211 to rotate, and the motor spline 211 drives the spline sleeve 221 to rotate during the rotation, thereby driving the worm 220 to rotate in the reduction box 200, and the impact force generated by the connection is evenly distributed to each spline 211 tooth;

[0032] Step S2: The worm 220 rotates, thereby driving the worm wheel 240 to rotate, thereby driving the worm gear 230 to rotate in the reduction gear box 200, and further driving the driving wheel 250 to rotate, thereby driving the sliding door to open or close.

[0033] Working principle:

[0034] When the motor is powered on, the motor shaft rotates at high speed (the motor speed in the present invention is 3500rpm), and the instantaneous torque Ts is generally 3 times the rated torque T. For the motor, the torque can be calculated by the formula T=9.55P / n, where P is the rated power of the motor in kilowatts, and n is the rated speed. Take P=250W, n=3500, then T=0.682N·m, Ts=2.046N·m.

[0035] If the motor and the worm 220 are connected by a rigid connection, that is, when the torque directly impacts the cylindrical pin or the elastic cylindrical pin, the impact generated by the rigid connection will inevitably cause a part to produce impact fission, and stress fracture will occur if the number of impacts increases. The advantage of the connection between the motor spline 211 and the spline sleeve 221 of the present application is that the impact force is evenly distributed to each spline 211 tooth, and due to the difference between high-strength nylon plus glass fiber material (i.e., reinforced nylon material), the impact performance of the plastic material is also better than that of the rigid material. When subjected to impact force, the cushioning performance is superior, so the motor spline 211 and the spline sleeve 221 of the present application have better fatigue strength. Among them, only a pair of molds need to be opened in the early stage (two parts can share a pair of molds), and the mold is relatively simple, without inclined blocks and core pulling, and the upper and lower molds can be closed. The use of high-strength nylon plus glass fiber material has strong impact resistance and long fatigue life, and the relative material cost is also cheap, and the parts are more cost-effective.

[0036] It is worth mentioning that the technical features such as the molding of the motor spline 211 and the spline sleeve 221 involved in the patent application of the present invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of the patent of the present invention. The patent of the present invention will not be further elaborated.

[0037] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting transmission mechanism for a sliding door machine, characterized in that: The invention comprises a reduction gearbox (200), a high-voltage brushless motor (210), a motor spline (211), a worm (220), a spline sleeve (221) and a worm gear (230), wherein the worm (220) is arranged in the reduction gearbox (200), the high-voltage brushless motor (210) is arranged at the upper end of the reduction gearbox (200), the motor spline (211) is arranged at the lower end of the high-voltage brushless motor (210), the spline sleeve (221) is arranged at the upper end of the worm (220), the motor spline (211) matches the spline sleeve (221), the worm gear is horizontally arranged at the rear side of the worm (220), a worm wheel (240) is arranged on the worm gear (230), the worm wheel (240) matches the worm (220), and a driving wheel (250) is arranged at the right end of the worm gear (230).

2. The connecting transmission mechanism of the sliding door machine according to claim 1, characterized in that: A first limiting groove (231) is provided in the middle of the worm gear (230), and the worm wheel (240) matches the first limiting groove (231). A first limiting ring (271) is provided at the left end of the first limiting groove (231), and the first limiting ring (271) matches the left end of the worm wheel (240). A second limiting ring (272) is provided at the right end of the first limiting groove (231), and the second limiting ring (272) matches the right end of the worm wheel (240).

3. The connecting transmission mechanism of the sliding door machine according to claim 1, characterized in that: A first insertion hole (233) is provided at the left end of the worm gear (230), and a first release rod (261), a first release key (263) and a first spring (262) are provided in the first insertion hole (233). The first release rod (261) is arranged at the right end of the first insertion hole (233), and the first spring (262) is arranged at the right end of the first insertion hole (233). The first release key (263) is arranged between the first release rod (261) and the first spring (262). A first release hole (232) is provided in the middle of the worm gear (230), and the first release key (263) matches the first release hole (232). A first release groove (241) is provided at the right end of the worm wheel (240), and a first fixing groove (242) is provided at the bottom of the first release groove (241), and the first fixing groove (242) matches the first release key (263).

4. The connecting transmission mechanism of the sliding door machine according to claim 1, characterized in that: The left end of the reduction gearbox (200) is provided with a release support frame (100), the left end of the release support frame (100) is hingedly provided with a release wrench (110), the lower end of the release wrench (110) is provided with a cam portion (111), the right end of the release support frame (100) is provided with a first through hole (140), the first through hole (140) matches the first insertion hole (233), and the left end of the first release rod (261) passes through the first through hole (140) and matches the cam portion (111).

5. The connecting transmission mechanism of the sliding door machine according to claim 1, characterized in that: The motor spline (211) and the spline sleeve (221) are both made of high-strength nylon plus glass fiber material.

6. A control method for the connecting transmission mechanism of a sliding door machine according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step S1: Assemble the connecting transmission mechanism of the sliding door machine, start the high-voltage brushless motor (210) to drive the motor spline (211) to rotate, and the motor spline (211) drives the spline sleeve (221) to rotate during the rotation process, thereby driving the worm (220) to rotate in the reduction box (200), and the impact force generated by the connection is evenly distributed to each spline (211) tooth; Step S2: The rotation of the worm (220) drives the worm wheel (240) to rotate, thereby driving the worm wheel (230) to rotate in the reduction gear box (200), and then driving the driving wheel (250) to rotate, thereby driving the sliding door to open or close.

Images