Driving mechanism for heavy hangar protective door

Abstract

A driving mechanism for a heavy hangar protective door relates to the technical field of door driving mechanisms, and is characterized in that the bottom of a central sleeve is mounted at the top of a wheel carrier through a lower connecting plate component; the top of the center sleeve is connected with the output end of a hydraulic oil cylinder through an upper connecting plate assembly, the hydraulic oil cylinder is fixed to an oil cylinder base, and the oil cylinder base is installed on the inner surface of the door leaf. The disc spring is sleeved on the central sleeve, the upper end and the lower end of the disc spring are respectively abutted against the pressing plates on the upper side and the lower side, the pressing plate on the upper portion is fixed on the inner top wall of the dustproof cover, the pressing plate on the lower portion is fixed on the wheel carrier, and the dustproof cover is sleeved outside the disc spring. The traveling wheels can be tightly attached to the ground with a certain gradient through cooperation of the disc springs and the hydraulic oil cylinders, reverse supporting force is provided for the door leaf by combining the guiding effect of the dovetail grooves and the dovetail structure type inclined plates, it is guaranteed that the door leaf does not droop, and the overall supporting force is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of door driving mechanisms, in particular to a driving mechanism for a heavy-duty hangar protective door. Background Art

[0002] The door leaf is opened by an electric walking wheel drive, and the track slope on the side of the door leaf is up to 5‰, with a vertical distance difference of about 60mm. In order to ensure that the walking wheel has a stable and reliable driving force, the supporting force of the walking wheel needs to be stable, and it is necessary to ensure that the contact between the walking wheel and the track is good at any angle when the door leaf is opened. However, the current electric walking wheel drive door leaf cannot adapt to the ground slope during opening, and heavy door leaves are prone to sagging. Utility Model Content

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a driving mechanism for a heavy-duty hangar protective door, which can effectively solve the above-mentioned technical defects.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises a motor reducer, a drive shaft, a tapered roller bearing, a travel wheel, a bearing seat and a wheel frame; the output end of the motor reducer is connected to the drive shaft, the two ends of the drive shaft are rotatably mounted on the bearing seat by means of tapered roller bearings, the bearing seat is mounted on the wheel frame, the travel wheel is arranged between the two bearing seats and is mounted on the drive shaft; it also comprises:

[0005] The center sleeve, the bottom of the center sleeve is mounted on the top of the wheel frame by using a lower connecting plate assembly; the top of the center sleeve is connected to the output end of the hydraulic cylinder by using an upper connecting plate assembly, the hydraulic cylinder is fixed on the cylinder seat, and the cylinder seat is mounted on the inner surface of the door leaf;

[0006] A disc spring, the disc spring being sleeved on the central sleeve, with its upper and lower ends respectively resting on upper and lower pressure plates, the upper pressure plate being fixed to the inner top wall of the dust cover, and the lower pressure plate being fixed to the wheel frame, and the dust cover being sleeved on the outside of the disc spring;

[0007] A supporting slide plate, which is fixed to the back of the wheel frame and has a dovetail groove therein;

[0008] A dovetail structure type inclined plate is fixed to the inner surface of the door leaf, and its dovetail structure is slidably arranged in the dovetail groove.

[0009] Preferably, the dust cover comprises a dust cover upper cover and a dust cover lower cover; the dust cover lower cover is fixed on the wheel frame, the top of the dust cover upper cover is fixed on the upper connecting plate assembly, and the movable sleeve is arranged on the outside of the dust cover lower cover.

[0010] Preferably, the lower connecting plate assembly includes a center frame lower end plate and a lower end cover plate, the center frame lower end plate is fixed to the bottom inner wall of the center sleeve, and the lower end cover plate is arranged at the lower part of the top plate of the wheel frame and fixed to the center frame lower end plate.

[0011] Preferably, the upper connecting plate assembly includes a center frame upper plate and a center frame upper pressure plate; the center frame upper plate is fixed on the top of the dustproof upper cover, the center frame upper pressure plate is fixed on the top of the center frame upper plate, and the output end of the hydraulic cylinder is connected to the center frame upper pressure plate and the center frame upper plate.

[0012] Preferably, the output end of the hydraulic cylinder is externally connected to a lower adjusting pad via a T-nut, the bottom of the lower adjusting pad is connected to the upper portion of the center frame upper pressure plate, and a supporting pad is provided between the lower adjusting pad and the T-nut.

[0013] Preferably, a reinforcing pad is provided at the connection portion between the hydraulic cylinder and the cylinder seat.

[0014] Preferably, square steel is fixed to the top and back of the cylinder seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a driving mechanism for heavy-duty hangar protective doors, which utilizes the cooperation of disc springs and hydraulic cylinders to enable the walking wheels to adhere closely to the ground with a certain slope, and combined with the guiding effect of the dovetail groove and the dovetail structure-type inclined plate, provides a reverse supporting force for the door leaf, ensuring that the door leaf will not sag, and the overall supporting force is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 yes Figure 1 Right view of .

[0018] Figure 3 It is a structural schematic diagram of the dovetail structure type inclined plate in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the supporting slide plate in the utility model.

[0020] Figure 5 yes Figure 1 Enlarged view of part A in the middle.

[0021] Description of reference numerals:

[0022] Motor reducer 1, drive shaft 2, tapered roller bearing 3, walking wheel 4, bearing seat 5, wheel frame 6, center sleeve 7, upper connecting plate assembly 8, center frame upper plate 8-1, center frame upper pressure plate 8-2, hydraulic cylinder 9, cylinder seat 10, disc spring 11, support slide plate 12, dovetail groove 12-1, dovetail structure type inclined plate 13, dust cover 14, dust cover upper cover 14-1, dust cover lower cover 14-2, reinforcement pad 15, square steel 16, lower connecting plate assembly 17, center frame lower end plate 17-1, lower end cover plate 17-2, pressure plate 18, T-nut 19, support pad 20, lower adjustment pad 21. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 5 As shown, this specific embodiment adopts the following technical solution: it includes a motor reducer 1, a drive shaft 2, a tapered roller bearing 3, a travel wheel 4, a bearing seat 5 and a wheel frame 6; the output end of the motor reducer 1 is connected to the drive shaft 2, and both ends of the drive shaft 2 are rotatably mounted on the bearing seat 5 using the tapered roller bearing 3, the bearing seat 5 is mounted on the wheel frame 6, and the travel wheel 4 is arranged between the two bearing seats 5 and is mounted on the drive shaft 2; it also includes:

[0025] The center sleeve 7, the bottom of the center sleeve 7 is installed on the top of the wheel frame 6 using the lower connecting plate assembly 17; the top of the center sleeve 7 is connected to the output end of the hydraulic cylinder 9 using the upper connecting plate assembly 8, the hydraulic cylinder 9 is fixed on the cylinder seat 10, the top and back of the cylinder seat 10 are fixed with square steel 16, and the connection between the hydraulic cylinder 9 and the cylinder seat 10 is clamped with a reinforcing pad 15; the cylinder seat 10 is installed on the inner surface of the door leaf; the output end of the hydraulic cylinder 9 is connected to the outside using a T-nut 19 is connected to a lower adjustment pad 21, the bottom of the lower adjustment pad 21 is connected to the upper part of the center frame upper pressure plate 8-2, and a support pad 20 is provided between the lower adjustment pad 21 and the T-nut 19; the lower connecting plate assembly 17 includes a center frame lower end plate 17-1 and a lower end cover plate 17-2, the center frame lower end plate 17-1 is fixed to the bottom end inner wall of the center sleeve 7, and the lower end cover plate 17-2 is arranged at the lower part of the top plate of the wheel frame 6 and is fixed to the center frame lower end plate 17-1;

[0026] The disc spring 11 is sleeved on the central sleeve 7, and its upper and lower ends are respectively abutted on the upper and lower pressure plates 18, and the lower pressure plate is fixed on the wheel frame 6;

[0027] The dust cover 14 comprises an upper dust cover 14-1 and a lower dust cover 14-2, both of which are sleeved on the outside of the disc spring 11; the upper pressure plate 18 is fixed to the inner top wall of the upper dust cover 14-1, the lower dust cover 14-2 is fixed to the wheel frame 6, the top of the upper dust cover 14-1 is fixed to the upper connecting plate assembly 8, and is movably sleeved on the outside of the lower dust cover 14-2; the upper connecting plate assembly 8 comprises a center frame upper plate 8-1 and a center frame upper pressure plate 8-2; the center frame upper plate 8-1 is fixed to the top of the upper dust cover 14-1, the center frame upper pressure plate 8-2 is fixed to the top of the center frame upper plate 8-1, and the output end of the hydraulic cylinder 9 is connected to the center frame upper pressure plate 8-2 and the center frame upper plate 8-1;

[0028] A support slide 12, wherein the support slide 12 is fixed to the back of the wheel frame 6 and has a dovetail groove 12-1;

[0029] The dovetail structure inclined plate 13 is fixed to the inner surface of the door leaf, and its dovetail structure is slidably arranged in the dovetail groove 12-1.

[0030] When the present invention is used, the motor reducer 1 works to drive the walking wheel 4 through the drive shaft 2, thereby realizing the opening and closing of the door leaf; the hydraulic cylinder 9 is adjusted to control the initial pressure of the disc spring 11, and the walking wheel 4 drives the entire driving mechanism to slide up and down under the guidance of the dovetail groove 12-1 and the dovetail structure inclined plate 13 during the walking process under the elastic action of the disc spring 11, which not only makes the door leaf have a certain supporting force within a certain range during the opening process, but also enables the walking wheel to fit the ground with a certain slope.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. The disc spring and hydraulic cylinder are used to make the travel wheels close to the ground with a certain slope;

[0033] 2. Combined with the guiding function of the dovetail groove and the dovetail structure inclined plate, it provides a reverse support force for the door leaf, ensuring that the door leaf will not sag and increasing the overall support force;

[0034] 3. Able to push a protective door weighing approximately 98 tons.

[0035] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A driving mechanism for a heavy-duty hangar protective door, comprising a motor reducer (1), a drive shaft (2), a tapered roller bearing (3), a travel wheel (4), a bearing seat (5) and a wheel frame (6); the output end of the motor reducer (1) is connected to the drive shaft (2), both ends of the drive shaft (2) are rotatably mounted on the bearing seat (5) by means of the tapered roller bearing (3), the bearing seat (5) is mounted on the wheel frame (6), and the travel wheel (4) is arranged between the two bearing seats (5) and is mounted on the drive shaft (2); characterized in that, It also contains: A center sleeve (7), wherein the bottom of the center sleeve (7) is mounted on the top of the wheel frame (6) by means of a lower connecting plate assembly (17); the top of the center sleeve (7) is connected to the output end of the hydraulic cylinder (9) by means of an upper connecting plate assembly (8); the hydraulic cylinder (9) is fixed on a cylinder seat (10), and the cylinder seat (10) is mounted on the inner surface of the door leaf; A disc spring (11), the disc spring (11) is sleeved on the central sleeve (7), and the upper and lower ends thereof are respectively abutted on the upper and lower pressure plates (18), the upper pressure plate (18) is fixed to the inner top wall of the dust cover (14), and the lower pressure plate is fixed to the wheel frame (6), and the dust cover (14) is sleeved on the outside of the disc spring (11); A supporting slide plate (12), wherein the supporting slide plate (12) is fixed to the back of the wheel frame (6) and has a dovetail groove (12-1) formed therein; A dovetail structure type inclined plate (13), wherein the dovetail structure type inclined plate (13) is fixed to the inner surface of the door leaf, and its dovetail structure is slidably arranged in the dovetail groove (12-1); The lower connecting plate assembly (17) includes a center frame lower end plate (17-1) and a lower end cover plate (17-2), wherein the center frame lower end plate (17-1) is fixed to the bottom inner wall of the center sleeve (7), and the lower end cover plate (17-2) is arranged at the lower part of the top plate of the wheel frame (6) and is fixed to the center frame lower end plate (17-1); the upper connecting plate assembly (8) includes a center frame upper plate (8-1) and a center frame upper pressure plate (8-2); the center frame upper plate (8-1) is fixed to the top of the dustproof upper cover (14-1), the center frame upper pressure plate (8-2) is fixed to the top of the center frame upper plate (8-1), and the output end of the hydraulic cylinder (9) is connected to the center frame upper pressure plate (8-2) and the center frame upper plate (8-1).

2. The driving mechanism for a heavy-duty hangar protective door according to claim 1, characterized in that: The dustproof cover (14) comprises a dustproof upper cover (14-1) and a dustproof lower cover (14-2); the dustproof lower cover (14-2) is fixed on the wheel frame (6), the top of the dustproof upper cover (14-1) is fixed on the upper connecting plate assembly (8), and the movable sleeve is arranged on the outside of the dustproof lower cover (14-2).

3. The driving mechanism for a heavy-duty hangar protective door according to claim 1, characterized in that: The output end of the hydraulic cylinder (9) is externally connected to a lower adjustment pad (21) via a T-nut (19), the bottom of the lower adjustment pad (21) is connected to the upper portion of the center frame upper pressure plate (8-2), and a support pad (20) is provided between the lower adjustment pad (21) and the T-nut (19).

4. The driving mechanism for a heavy-duty hangar protective door according to claim 1, characterized in that: A reinforcing pad (15) is provided at the connection portion between the hydraulic cylinder (9) and the cylinder seat (10).

5. The driving mechanism for a heavy-duty hangar protective door according to claim 1, characterized in that: Square steel (16) is fixed to the top and back of the oil cylinder seat (10).

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