Driving walking mechanism for door leaf and heavy door

Abstract

The invention discloses a driving walking mechanism for a door leaf and a heavy door. The driving walking mechanism for the door leaf comprises a power unit, a connecting unit, a walking unit and fixing equipment. The power unit is arranged to provide power for the walking unit through the connecting unit; the walking unit is connected with the door leaf through the fixing equipment; the walking unit comprises an adjusting assembly and a walking wheel assembly. The adjusting assembly comprises a sleeve, a sliding sleeve, a spring, a lifting wheel threaded rod, a threaded cover and a hand wheel. The advancing wheel assembly comprises a driving wheel, a driving wheel support and a driving shaft. The driving wheel bracket is connected with the lower end of the sliding sleeve; and the driving shaft is arranged to drive the driving wheel to rotate under the driving of the power unit so as to drive the door leaf to rotate around the door shaft. The driving walking mechanism for the door leaf can adapt to tracks with various gradients and potholes, and the walking mechanism can be prevented from slipping after eccentric movement.

Description

Technical Field

[0001] The invention relates to a driving running mechanism for a door leaf and a heavy door. Background Art

[0002] With the rapid development of my country's economy, some large projects in my country need to install large and heavy door leaves, such as hangar doors. Large and heavy door leaves are generally opened in a split-opening manner due to their own weight and external dimensions, and rarely in a split-opening, winch, push-pull or other methods. When using the split-opening method, due to the defects of easy deformation of the rack transmission, high power of the shaft transmission driven by wind pressure, and large space occupied by the drive device, the shaft + drive opening method is now more commonly used.

[0003] Most of the existing drive systems use a motor reducer to directly drive the travel wheel, and the travel mechanism is directly fixed on the door leaf. For example, CN202578378U discloses a drive system, including a vertical motor, a power seat, a brake, a reducer, a wheel, a wheel axle, a wheel seat, a wheel frame, a manual crank, a wheel device bracket, and an outer cover plate. This drive system is not very adaptable, mainly manifested in the high requirements for the state of the travel track, which requires the track to be relatively flat. The travel wheel is prone to jamming and drive failure when it is on potholes and up and down ramps. Summary of the invention

[0004] In view of this, one object of the present invention is to provide a driving running mechanism for door leaves, which can adapt to various slopes, potholes and tracks, prevent stagnation, and prevent the running mechanism from slipping after eccentric movement. Another object of the present invention is to provide a heavy-duty door including the above-mentioned driving running mechanism for door leaves.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] In one aspect, the present invention provides a driving and traveling mechanism for a door leaf, comprising a power unit, a connecting unit, a traveling unit and a fixing device;

[0007] The power unit comprises a motor, the motor is fixed on the door leaf, and the power unit is configured to provide power to the traveling unit through the connecting unit;

[0008] The running unit is connected to the door leaf through the fixing device; the running unit includes an adjustment assembly and a traveling wheel assembly;

[0009] The adjustment assembly comprises a sleeve, a sliding sleeve, a spring, a lifting wheel threaded rod, a threaded cover and a handwheel; wherein the sleeve is arranged vertically, and the threaded cover is located above the sleeve; a part of the sliding sleeve is arranged to slide freely up and down in the sleeve, and a lifting wheel threaded rod passing hole is arranged in the sliding sleeve, and the central axis of the lifting wheel threaded rod passing hole is substantially coincident with the central axis of the sleeve; the lifting wheel threaded rod vertically penetrates the lifting wheel threaded rod passing hole, and the top of the lifting wheel threaded rod is connected to the threaded cover; the spring sleeve is arranged on the outside of the lifting wheel threaded rod and is located above the lifting wheel threaded rod passing hole; the handwheel is located above the threaded cover, and the handwheel is connected to the lifting wheel threaded rod;

[0010] The traveling wheel assembly includes a driving wheel, a driving wheel bracket and a driving shaft; the driving wheel bracket is connected to the lower end of the sliding sleeve; the driving wheel is arranged in the middle of the driving wheel bracket; the driving shaft is arranged to drive the driving wheel to rotate under the drive of the power unit, thereby driving the door leaf to rotate around the door axis.

[0011] In the present invention, the sleeve is arranged vertically and is a cylindrical structure. The sliding sleeve is arranged vertically and can slide freely in the sleeve. A spring is arranged vertically in the sliding sleeve, and the spring sleeve is arranged outside the threaded rod of the lifting wheel. In this way, the spring compression amount can be adjusted according to the specific working conditions, so that the door leaf driving running mechanism can adapt to various slopes and potholes on the road surface track. After the handwheel is fixed on the threaded rod of the lifting wheel, a lifting wheel system is formed. During use, the handwheel can be turned to adjust the spring compression amount according to the road surface conditions. For example, when there is a protrusion on the road surface track, the handwheel can be twisted to lift the threaded rod of the lifting wheel upward, thereby driving the sliding sleeve to move upward and compress the spring, and then driving the driving wheel bracket and the driving wheel to move upward, so that the running mechanism can operate normally.

[0012] The spring of the present invention is arranged vertically, and the central axis of the spring coincides with the central axis of the threaded rod of the lifting wheel. At least a part of the spring can be completely located in the sliding sleeve. The spring can be compressed, and the compression amount of the spring can be adjusted to adapt to the road conditions.

[0013] In the present invention, a gap of a set value L is left between the outer wall of the lifting wheel threaded rod and the inner wall of the sliding sleeve, so that the driving running mechanism for the door leaf has the ability to adapt to the L value of the road depression.

[0014] The threaded cover of the invention is provided with a T-shaped thread connected with a threaded rod of a lifting wheel, and the threaded cover is connected with a sleeve through a fastener.

[0015] According to the door leaf driving mechanism of the present invention, preferably, the connection unit includes a connection shaft and a universal coupling; the power unit is configured to drive the drive shaft to operate through the connection shaft and the universal coupling in sequence. The universal coupling adopts but is not limited to a cross-axis structure, which can facilitate the adjustment of the height and centripetal direction of the drive wheel. The connection shaft is a device for connecting the motor reducer and the universal coupling, and is specifically connected to the reducer output shaft and the input end of the universal coupling through bolts.

[0016] According to the door leaf driving mechanism of the present invention, preferably, the power unit further comprises a reducer and a fixing assembly thereof; the motor, reducer and fixing assembly thereof are not limited to being composed of an integrated motor reducer and a motor seat. The power unit is fixed to the door leaf by bolting or welding.

[0017] According to the door leaf driving mechanism of the present invention, preferably, the diameter of the bottom of the lifting wheel threaded rod is larger than the diameter of the lifting wheel threaded rod passing hole, and the bottom of the lifting wheel threaded rod is located below the lifting wheel threaded rod passing hole. In this way, the lifting wheel threaded rod can be limited.

[0018] According to the door leaf driving mechanism of the present invention, preferably, the sliding sleeve is arranged vertically, and comprises a cylindrical body, and an inner extension protrusion is arranged on the inner wall of the lower part of the cylindrical body in the horizontal direction; the threaded rod for lifting the wheel is located at the center of the inner extension protrusion through the hole; the bottom of the cylindrical body is provided with an outer extension protrusion in the horizontal direction, and the outer extension protrusion is connected to the driving wheel bracket through a connecting piece. Such a sliding sleeve can slide freely in the sleeve, maintain a set gap with the threaded rod for lifting the wheel, and is also fixed to the driving wheel bracket, which is conducive to adjusting the height of the driving wheel, so that the running mechanism has the adaptive ability of the road surface depression L value.

[0019] According to the door leaf driving mechanism of the present invention, preferably, the adjustment assembly further comprises a housing and a sealing cover; the sleeve and the spring are both located in the housing; a part of the threaded cover and a part of the sliding sleeve are both located in the housing; the sealing cover is arranged around the sliding sleeve and is located between the bottom of the sleeve and the housing. In this way, the sealing of the sliding sleeve can be maintained and the service life can be extended. At the same time, the housing can be connected to the fixing device through a connecting piece.

[0020] According to the door leaf driving running mechanism described in the present invention, preferably, it also includes a running unit guide seat, which is L-shaped; the running unit is connected to the fixing device through the running unit guide seat; the fixing device is an integrated plate or a welded part.

[0021] The fixing device may be a device with a slope at an angle α, and may be a steel plate or a welded part, so as to realize the centripetal movement of the traveling unit.

[0022] According to one embodiment of the present invention, there may be two guide seats for the running unit, which are respectively arranged on both sides of one end of the driving wheel bracket. The running unit guide seat is installed on the fixing device to form a mounting control for fixing the driving wheel bracket, so as to prevent the driving wheel from turning due to the rotation of the sliding sleeve during the operation of the running mechanism, and can achieve a guiding effect during the upward movement of the mechanism.

[0023] According to the driving running mechanism for door leaf of the present invention, preferably, the traveling wheel assembly also includes a first bearing and a second bearing; the first bearing and the second bearing are located on the left and right sides of the driving wheel bracket; the driving shaft is configured to pass through the first bearing, the driving wheel and the second bearing in sequence, so that the driving shaft is connected to the driving wheel.

[0024] According to the driving running mechanism for door leaf of the present invention, preferably, the traveling wheel assembly also includes a block and a block cover; the block cover is located at one side edge of the driving wheel bracket and away from the connecting unit; the block is connected to the end of the driving shaft and is close to the block cover.

[0025] In the present invention, the end of the driving shaft is connected to the stopper through a fastener to prevent the driving shaft from axial movement. The stop cover is connected to the driving wheel bracket through a fastener to achieve compression and sealing of the first bearing.

[0026] The first bearing and the second bearing include, but are not limited to, deep groove ball bearings of various structures.

[0027] The working principle of the door leaf driving mechanism of the present invention is described as follows:

[0028] The motor reducer of the power unit is energized, the output shaft rotates, driving the connecting shaft to drive the universal coupling to rotate, and the universal coupling drives the drive shaft to drive the drive wheel to rotate, thereby driving the entire door leaf to rotate around the door axis. During the movement, the running unit can drive the lifting wheel threaded rod and the sliding sleeve to move up and down by turning the hand wheel, so that the drive wheel can adapt to a certain degree of potholes on the road surface.

[0029] On the other hand, the present invention also provides a heavy-duty door, comprising a door leaf, a door shaft and a driving running mechanism for the door leaf as described above, wherein the door shaft is movably connected to one side of the door leaf, the driving running mechanism for the door leaf is connected to the door leaf through the fixing device, and the driving running mechanism for the door leaf is configured to drive the door leaf to rotate around the door shaft.

[0030] The driving wheel of the door leaf driving running mechanism of the present invention is height-adjustable, and can adapt to various slopes, potholes and tracks on the road surface, and can also prevent the running mechanism from slipping after eccentric movement. In addition, it has a wide range of environmental adaptability, and can adapt to plateaus, severe cold and other environments in addition to general environments. According to the preferred technical solution of the present invention, the present invention can adjust the spring compression amount according to the road surface by setting a specific sliding sleeve, spring, wheel lifting threaded rod, etc. and connecting the sliding sleeve to the driving wheel bracket, which is conducive to adjusting the height of the driving wheel to adapt to the slope, potholes and tracks on the road surface; and also prevents the driving wheel from slipping and rotating by setting an L-shaped guide seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the relative positions of the door leaf driving running mechanism and the door leaf of the present invention.

[0032] Figure 2 yes Figure 1 Schematic diagram of direction A.

[0033] Figure 3 It is a side view schematic diagram of the driving running mechanism for the door leaf of the present invention.

[0034] Figure 4 It is a schematic longitudinal section of the driving running mechanism for the door leaf of the present invention.

[0035] Figure 5 It is a schematic diagram of the installation of the guide seat of the running unit of the present invention.

[0036] Description of reference numerals:

[0037] 10-door leaf, 20-door axis;

[0038] 100-Driving mechanism for door leaf,

[0039] 110-Power unit,

[0040] 120-connecting unit, 121-connecting shaft, 122-universal coupling,

[0041] 140-travel unit, 1411-hand wheel, 1412-threaded cover, 1413-sleeve, 1414-sliding sleeve, 1415-lifting wheel threaded rod, 1416-spring, 1417-sealing cover, 1418-housing; 1421-driving wheel, 1422-driving wheel bracket, 1423-driving shaft, 1424-first bearing, 1425-second bearing, 1426-stopper, 1427-stopper;

[0042] 150-travel unit guide seat, 160-fixed equipment. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0044] Example 1

[0045] Figure 1 It is a schematic diagram of the relative positions of the door leaf driving running mechanism and the door leaf of the present invention. Figure 2 yes Figure 1 Schematic diagram of direction A. Figure 3 It is a side view schematic diagram of the driving running mechanism for the door leaf of the present invention. Figure 4 It is a schematic longitudinal section of the driving running mechanism for the door leaf of the present invention. Figure 5 It is a schematic diagram of the installation of the guide seat of the running unit of the present invention.

[0046] like Figures 1 to 5 As shown, a part of the door leaf driving running mechanism 100 of the present invention is fixed on the door leaf 10, and can drive the door leaf 10 to rotate around the door shaft 20. The door leaf driving running mechanism 100 includes a power unit 110, a connecting unit 120, a running unit 140, a running unit guide seat 150, and a fixing device 160.

[0047] The power unit 110 includes a motor, a reducer and a fixing component thereof. The motor, the reducer and a fixing component thereof are composed of an integrated motor reducer and a motor seat. The motor, the reducer and a fixing component thereof are fixed to the door leaf 10 by bolting or welding. The power unit 110 is configured to provide power to the travel unit 140 through the connection unit 120.

[0048] The connection unit 120 includes a connection shaft 121 and a universal coupling 122. The power unit 110 is configured to drive the driving shaft 1423 of the traveling unit 140 to operate through the connection shaft 121 and the universal coupling 122 in sequence.

[0049] The running unit 140 is connected to the door leaf 10 via a fixing device 160. The fixing device 160 may be an integral plate or a welded part. The fixing device 160 is fixed to the door leaf 10. Figure 2 As shown, the fixing device 160 is a device with a slope at an angle α, which can be a steel plate or a welded part to achieve the centripetal movement of the traveling unit 140 .

[0050] like Figure 4 As shown, the traveling unit 140 includes an adjustment assembly and a traveling wheel assembly.

[0051] The adjustment assembly includes a hand wheel 1411 , a threaded cover 1412 , a sleeve 1413 , a sliding sleeve 1414 , a lifting wheel threaded rod 1415 , a spring 1416 , a sealing cover 1417 , and a housing 1418 .

[0052] The sleeve 1413 is a cylindrical structure and is arranged vertically.

[0053] The threaded cover 1412 is located above the sleeve 1413. The threaded cover 1412 has a middle portion and an edge portion. The middle portion is a cylindrical structure with a threaded hole, which matches the lifting wheel threaded rod 1415. The edge portion is obtained by extending the bottom of the middle portion in a horizontal direction. The edge portion is connected to the sleeve 1413 through a connecting member (such as a bolt).

[0054] A portion of the sliding sleeve 1414 is configured to slide freely up and down in the sleeve 1413, and a hole for the threaded rod of the lifting wheel is provided in the sliding sleeve 1414. The central axis of the threaded rod of the lifting wheel through the hole is substantially coincident with the central axis of the sleeve 1413. The threaded rod of the lifting wheel through the hole allows the threaded rod of the lifting wheel 1415 to pass through. Specifically, the sliding sleeve 1414 is vertically arranged, and includes a cylindrical body, and an inner extension protrusion is horizontally arranged on the inner wall of the lower part of the cylindrical body. The threaded rod of the lifting wheel through the hole is located at the center of the inner extension protrusion. The bottom of the cylindrical body is horizontally provided with an outer extension protrusion, and the outer extension protrusion is connected to the driving wheel bracket 1422 of the traveling wheel assembly through a connecting member (such as a bolt).

[0055] The lifting wheel threaded rod 1415 vertically penetrates the lifting wheel threaded rod through hole, and is penetrated by a spring 1416 (i.e., the spring 1416 is vertically arranged). That is, the spring 1416 is located between the lifting wheel threaded rod 1415 and the sliding sleeve 1414. The top of the lifting wheel threaded rod 1415 is connected to the threaded cover 1412 (threaded connection). The diameter of the bottom of the lifting wheel threaded rod 1415 is larger than the diameter of the lifting wheel threaded rod through hole, so that the lifting wheel threaded rod 1415 can be limited. A set gap is left between the lifting wheel threaded rod 1415 and the inner wall of the sliding sleeve 1414.

[0056] The sleeve 1413 and the spring 1416 are both located in the housing 1418. A portion of the threaded cover 1412 and a portion of the sliding sleeve 1414 are both located in the housing 1418.

[0057] The sealing cover 1417 is disposed around the sliding sleeve 1414 and is located between the bottom of the sleeve 1413 and the outer shell 1418 .

[0058] The hand wheel 1411 is located above the threaded cover 1412, and the hand wheel 1411 is connected to the lifting wheel threaded rod 1415 (may be threadedly connected).

[0059] The traveling wheel assembly includes a driving wheel 1421 , a driving wheel bracket 1422 , a driving shaft 1423 , a first bearing 1424 , a second bearing 1425 , a stopper 1426 and a stop cover 1427 .

[0060] The driving wheel bracket 1422 is connected to the lower end of the sliding sleeve 1414 (i.e., the extended protruding portion of the sliding sleeve 1414), and specifically, the two can be connected by bolts. The driving wheel 1421 is arranged in the middle of the driving wheel bracket 1422. The driving shaft 1423 drives the driving wheel 1421 to rotate under the drive of the power unit 110, thereby driving the door leaf 10 to rotate around the door shaft 20.

[0061] like Figure 4 As shown, the first bearing 1424 and the second bearing 1425 are located on the left and right sides of the driving wheel bracket 1422. The driving shaft 1423 is configured to pass through the first bearing 1424, the driving wheel 1421 and the second bearing 1425 in sequence, so that the driving shaft 1423 is connected to the driving wheel 1421.

[0062] The blocking cover 1427 is located at one side edge of the driving wheel bracket 1422 and is away from the connecting unit 120. The blocking block 1426 is connected to the end of the driving shaft 1423 and is close to the blocking cover 1427.

[0063] like Figure 5 and Figure 3 As shown, the running unit guide seat 150 is L-shaped. The driving wheel bracket 1422 of the running unit 140 is connected to the fixing device 160 through the running unit guide seat 150. The housing 1418 of the running unit 140 is connected to the fixing device 160 through a connecting member (such as a screw).

[0064] Example 2

[0065] This embodiment provides a heavy-duty door, which may be a hangar door, for example, including a door leaf 10, a door shaft 20, and a door leaf driving running mechanism 100 described in Embodiment 1. The door shaft 20 is movably connected to one side of the door leaf 10, and the door leaf driving running mechanism 100 is connected to the door leaf 10 via a fixing device 160, and the door leaf driving running mechanism 100 can drive the door leaf 10 to rotate around the door shaft 20.

[0066] The present invention is not limited to the above-mentioned embodiments. Any deformation, improvement and substitution that can be conceived by those skilled in the art without departing from the essential content of the present invention shall fall within the scope of the present invention.

Claims

1. A driving mechanism for a door leaf, characterized in that: Including power unit, connection unit, running unit and fixing equipment; The power unit comprises a motor, the motor is fixed on the door leaf, and the power unit is configured to provide power to the traveling unit through the connecting unit; The running unit is connected to the door leaf through the fixing device; the running unit includes an adjustment assembly and a traveling wheel assembly; The adjustment assembly comprises a sleeve, a sliding sleeve, a spring, a lifting wheel threaded rod, a threaded cover and a handwheel; wherein the sleeve is arranged vertically, and the threaded cover is located above the sleeve; a part of the sliding sleeve is arranged to slide freely up and down in the sleeve, and a lifting wheel threaded rod passing hole is arranged in the sliding sleeve, and the central axis of the lifting wheel threaded rod passing hole is substantially coincident with the central axis of the sleeve; the lifting wheel threaded rod vertically penetrates the lifting wheel threaded rod passing hole, and the top of the lifting wheel threaded rod is connected to the threaded cover; the spring sleeve is arranged on the outside of the lifting wheel threaded rod and is located above the lifting wheel threaded rod passing hole; the handwheel is located above the threaded cover, and the handwheel is connected to the lifting wheel threaded rod; The traveling wheel assembly includes a driving wheel, a driving wheel bracket and a driving shaft; the driving wheel bracket is connected to the lower end of the sliding sleeve; the driving wheel is arranged in the middle of the driving wheel bracket; the driving shaft is arranged to drive the driving wheel to rotate under the drive of the power unit, thereby driving the door leaf to rotate around the door axis.

2. The door leaf driving mechanism according to claim 1, characterized in that: The connecting unit comprises a connecting shaft and a universal coupling; the power unit is configured to drive the driving shaft to operate via the connecting shaft and the universal coupling in sequence.

3. The door leaf driving mechanism according to claim 2, characterized in that: The power unit also includes a reducer and a fixing assembly thereof; the motor, reducer and a fixing assembly thereof are not limited to being composed of an integrated motor reducer and a motor seat.

4. The door leaf driving mechanism according to claim 3, characterized in that: The diameter of the bottom of the wheel lifting threaded rod is greater than the diameter of the wheel lifting threaded rod passing hole, and the bottom of the wheel lifting threaded rod is located below the wheel lifting threaded rod passing hole.

5. The door leaf driving mechanism according to claim 1, characterized in that: The sliding sleeve is arranged vertically, and comprises a cylindrical body, an inner wall of the lower part of which is provided with an inwardly extending protrusion in the horizontal direction; the threaded rod for lifting the wheel is located through a hole at the center of the inwardly extending protrusion; an outwardly extending protrusion is arranged at the bottom of the cylindrical body in the horizontal direction, and the outwardly extending protrusion is connected to the driving wheel bracket through a connecting piece.

6. The door leaf driving mechanism according to claim 1, characterized in that: The adjustment assembly also includes a shell and a sealing cover; the sleeve and the spring are both located in the shell; a portion of the threaded cover and a portion of the sliding sleeve are both located in the shell; the sealing cover is arranged around the sliding sleeve and is located between the bottom of the sleeve and the shell.

7. The door leaf driving mechanism according to claim 6, characterized in that: It also includes a running unit guide seat, which is L-shaped; the running unit is connected to the fixing device through the running unit guide seat; the fixing device is an integrated plate or a welded part.

8. The door leaf driving mechanism according to any one of claims 1 to 7, characterized in that: The traveling wheel assembly also includes a first bearing and a second bearing; the first bearing and the second bearing are located on the left and right sides of the driving wheel bracket; the driving shaft is configured to pass through the first bearing, the driving wheel and the second bearing in sequence, so that the driving shaft is connected to the driving wheel.

9. The door leaf driving mechanism according to claim 8, characterized in that: The traveling wheel assembly further comprises a stopper and a stop cover; the stop cover is located at one side edge of the driving wheel bracket and is away from the connecting unit; the stopper is connected to the end of the driving shaft and is close to the stop cover.

10. A heavy-duty door, characterized in that: The invention comprises a door leaf, a door shaft and a driving travel mechanism for a door leaf as claimed in any one of claims 1 to 9, wherein the door shaft is movably connected to the door leaf. On one side, the door leaf driving running mechanism is connected to the door leaf through the fixing device, The door leaf driving running mechanism is configured to drive the door leaf to rotate around the door shaft.

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