CN211393496U - Car top wheel structure convenient for replacing shock pad - Google Patents
Car top wheel structure convenient for replacing shock pad Download PDFInfo
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- CN211393496U CN211393496U CN201922340890.1U CN201922340890U CN211393496U CN 211393496 U CN211393496 U CN 211393496U CN 201922340890 U CN201922340890 U CN 201922340890U CN 211393496 U CN211393496 U CN 211393496U
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Abstract
The utility model relates to a sedan-chair top wheel structure convenient to change shock pad, include: the device comprises an upper beam, a supporting beam positioned under the upper beam, a shock pad pressed between the upper beam and the supporting beam, a car top wheel rotatably mounted on the supporting beam, an adjusting screw rod arranged between the upper beam and the supporting beam in a penetrating manner, and an adjusting nut which is arranged on the adjusting screw rod in a threaded manner and is used for changing the distance between the upper beam and the supporting beam. Thus, the damping pad for replacing the car top wheel is simpler, and the replacement can be completed by fewer people.
Description
Technical Field
The utility model relates to an elevator equipment especially relates to a sedan-chair top wheel structure convenient to change shock pad.
Background
With the continuous development of innovation, the number of elevators is steadily increasing, and the demand of high-speed elevators, particularly high-speed elevators above 4m/s, is increasing. However, the performance requirements of high-speed elevators are high, and especially the running comfort of elevator cars is getting worse and worse. At present, a high-speed elevator traction machine generally adopts a toothless main machine to achieve the purposes of energy conservation and consumption reduction, and the traction mode is also according to 2: 1, the top wheel device is designed, manufactured and installed in a single large-pitch guide wheel mode, the design of the top wheel device is important in order to reduce vibration transmitted to an upper beam and a lift car by a tractor, and particularly, the selection of the performance of a damping pad is important for comfort; the replacement of the shock pad is a labor and time consuming matter for the elevator in the early test tower test or the later maintenance.
This requires a new design, manufacturing and installation to practically solve the above conflict.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a car top wheel structure convenient for replacing the shock pad, aiming at the problem that the shock pad is difficult to replace.
A ceiling wheel structure convenient to change shock pad, the ceiling wheel structure includes:
an upper beam;
a support beam positioned right below the upper beam;
the shock pad is pressed between the upper beam and the support beam;
a car top wheel which rotates and is mounted on the support beam;
the adjusting screw rod penetrates between the upper beam and the supporting beam;
and the adjusting nut is arranged on the adjusting screw rod in a threaded manner and used for changing the distance between the upper beam and the supporting beam.
Optionally, the upper beams and the supporting beams are arranged side by side, two ends of a rotating shaft of the car top wheel are respectively rotatably mounted on the supporting beams on the corresponding sides, and the upper half part of the car top wheel extends to a position between the two upper beams.
Optionally, the lengths of the two supporting beams are greater than the diameter of the car top wheel, a rotating shaft of the car top wheel is installed in the middle of the supporting beams in the length direction, the lower half portion of the car top wheel extends to the lower portion of the two supporting beams, and a protective cover is further installed on the two supporting beams and surrounds the lower half portion of the car top wheel.
Optionally, the protective cover comprises:
the car top wheel comprises two oppositely arranged panels, two supporting beams and a pair of supporting beams, wherein the two panels are respectively positioned at two axial sides of the car top wheel, and the top edge of each panel is fixed on the supporting beam at the corresponding side;
a lower plate connected between the bottom edges of the two panels;
two side plates connected between the side edges of the two panels.
Optionally, at least two rope blocking rods penetrate between the two panels, and the rope blocking rods are arranged close to the periphery of the car top wheel.
Optionally, the shock pads are two sets of and are located between the upper beam and the supporting beam of the corresponding side respectively, and the shock pads of the same set are arranged in sequence along the length direction of the supporting beam.
Optionally, the shock pad includes:
an upper base plate fixed with the upper beam;
a lower base plate fixed with the support beam;
and the elastic buffer is fixed between the upper backing plate and the lower backing plate.
Optionally, the two groups of adjusting screws are respectively located between the upper beam and the supporting beam on the corresponding side, and the same group of adjusting screws are symmetrically arranged on two sides of the axis of the car top wheel.
Optionally, the head of the adjusting screw is located on the top surface of the upper beam, the rod of the adjusting screw extends downwards and penetrates through the upper beam and the supporting beam right below the upper beam, and at least two adjusting nuts on the same adjusting screw are respectively located on the upper side and the lower side of the supporting beam.
Optionally, a gap is reserved between the head of the adjusting screw and the top surface of the upper beam.
The car top wheel structure convenient to change shock pad comprises an upper beam, a supporting beam located under the upper beam, the low-pressure shock pad between the upper beam and the supporting beam, a car top wheel rotatably mounted on the supporting beam, an adjusting screw rod penetrating between the upper beam and the supporting beam, and an adjusting nut mounted on the adjusting screw rod through threads. When the shock pad of setting between upper beam and a supporting beam is to needs, only need to change the distance between upper beam and the supporting beam through adjusting nut, make the interval increase back, removable shock pad can guarantee the operating performance of high-speed ladder like this, has guaranteed simultaneously according to the elevator cab wheel under this scheme change labour saving and time saving's characteristics.
Drawings
FIG. 1 is a schematic view of a top wheel configuration for facilitating pad replacement in one embodiment;
FIG. 2 is a schematic side view of a top wheel structure for a car with shock absorbing pad replacement according to one embodiment
Numerical descriptions in the drawings:
1. an upper beam; 2. a support beam; 3. a shock pad; 4. a car top wheel; 5. adjusting the screw rod; 6. a rotating shaft; 7. a panel; 8. a lower plate; 9. a side plate; 10. a rope blocking rod; 11. screwing a nut; 12. a middle nut; 13. and (5) a lower nut.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
The elevator car top wheel structure is mainly installed in elevator equipment, is used as a main structural part of an elevator car and is mainly used for bearing the weight requirements of the self weight and the rated load capacity (namely, passengers and goods entering the car) of the elevator car, and according to the manufacturing and installation safety specification of GB7588-2003 elevators, the elevator car top wheel structure needs to bear corresponding strength requirements and can keep the integrity and the capability of no corresponding deformation of the car top wheel device under various severe working conditions when bearing the load. It is thus difficult to replace the shock-absorbing pads provided between the support beams carrying the roof wheels and the upper beams.
The sedan-chair top wheel effect plays the effect of movable pulley, and the hauler passes through the sedan-chair top wheel promptly, and friction drive car dead weight and the half total weight of the rated loading capacity of car, the vibration of hauler self also can be passed through the sedan-chair top wheel simultaneously, continues to transmit for the upper beam, influences comfort and noise index in the car then.
The purpose of the shock pad is to reduce the vibration of the car top wheel, so that the reasonable design of the rigidity and the elastic coefficient of the shock pad are key factors. The shock pad is mainly by rubber, or mode preparation such as rubber and spring combination, and after elevator complete machine operation certain life, the shock pad begins to appear rubber reasons such as ageing or other, leads to elevator car operation noise and vibration grow, must change the shock pad, carries out the change step as follows according to traditional method:
the elevator car is electrically operated to a position close to the upper end station of the elevator, and the power supply is cut off. Preparing a long wooden block in the pit. Preparing a chain block, and gradually hoisting and moving the lift car upwards in a chain pulling mode; meanwhile, a person supports the prepared long wooden block below the counterweight device at a certain height from the ground of the pit in the pit; and then the steel wire rope close to the side of the cage side guide wheel is fixed well by a rope clamp to prevent falling off. The hand-operated calabash is loosened step by step, and the whole weight of counterweight presses on the long wooden fender, and wire rope appears the pine because to the state that the counterweight is supported and takes off, is in the lax state. Guarantee the construction safety of elevator at last, chain block can not loosen completely, keeps chain block one point stress state, and the car does not have heavy pulling state and chain block to the low tension ground state under, and the sedan-chair top wheel is in self gravity and keeps the natural state of droing, carries out the change of sedan-chair top wheel shock pad from this. The replacement work can be completed only by the cooperation and operation of at least 3 operators, and the workload is at least 1 day, which takes labor and effort.
As shown in fig. 1-2, there is provided a ceiling wheel structure for facilitating replacement of a damper pad, the ceiling wheel structure comprising: an upper beam 1; a support beam 2 located right below the upper beam 1; the shock pad 3 is pressed between the upper beam 1 and the support beam 2; a ceiling wheel 4 rotatably mounted on the support beam 2; an adjusting screw 5 arranged between the upper beam 1 and the support beam 2 in a penetrating way; and the adjusting nut is arranged on the adjusting screw rod 5 in a threaded manner and is used for changing the distance between the upper beam 1 and the supporting beam 2. Thus, the distance between the upper beam 1 and the supporting beam 2 can be increased by adjusting the adjusting nut arranged on the adjusting screw rod 5 between the upper beam 1 and the supporting beam 2, and the shock pad 3 between the upper beam 1 and the supporting beam 2 can be replaced simply and easily.
In this embodiment, the upper beams 1 and the support beams 2 are both arranged side by side, two ends of the rotating shaft 6 of the top wheel 4 are respectively rotatably mounted on the support beams 2 on the corresponding sides, and the upper half part of the top wheel 4 extends between the two upper beams 1.
Specifically, a bearing is installed at the wheel diameter center position of the car top wheel 4, the inner peripheral wall of the bearing is installed on the rotating shaft 6, and the corresponding positions on the opposite surfaces of the two upper beams 1 are arranged to be in interference (or transition) fit with the outer diameters of the two ends of the rotating shaft 6. Wherein 6 both ends of pivot all set up threaded hole to be equipped with the gasket in proper order on the both ends periphery of pivot 6, the bolt of rethread high strength with set up at 6 both ends of pivot and set up threaded hole cooperation, fix pivot 6 between two supporting beams 2, in order to prevent at elevator operation in-process, sedan-chair top wheel 4 is in the play of axis direction.
Further, the length of the two supporting beams 2 is larger than the diameter of the top wheel 4, the rotating shaft 6 of the top wheel 4 is installed in the middle of the supporting beams 2 in the length direction, the lower half portion of the top wheel 4 extends to the lower portions of the two supporting beams 2, and the two supporting beams 2 are further provided with a protective cover which surrounds the lower half portion of the top wheel 4.
In this embodiment, the shield includes: two oppositely arranged panels 7, wherein the two panels 7 are respectively positioned at two axial sides of the car top wheel 4, and the top edge of each panel 7 is fixed on the support beam 2 at the corresponding side; a lower plate 8 connected between the bottom edges of the two panels 7; two side plates 9 connected between the side edges of the two panels 7.
In this embodiment, the shield components may be connected by bolts. The cross sections of the lower plate 8 and the two side plates 9 in the length direction are both U-shaped. Two sides of the U shape are both installation parts which are respectively attached to two sides and the bottom edge of the two panels 7 and are connected through bolts. The protection casing seals the periphery of the car top wheel 4 part through the two panels 7, the two side plates 9 and the lower plate 8, and prevents the car top wheel 4 from causing accidents possibly due to misoperation of operators in the rotating process.
In this embodiment, at least two rope blocking levers 10 are inserted between the two panels 7, and each rope blocking lever 10 is disposed close to the outer periphery of the ceiling wheel 4. The rope stopping rod is used for preventing the steel wire rope wound on the car top wheel 4 from jumping and falling off the groove under special conditions, particularly the steel wire rope falls off during earthquake.
Specifically, in the area where the supporting beam 2 and the panel 7 are fixedly connected, mounting holes are respectively formed in the two horizontal axial sides of the car top wheel 4, two rope blocking rods 10 are symmetrically mounted, and the steel wire ropes are prevented from falling off from the two axial sides of the car top wheel 4.
Specifically, mounting holes for mounting two rope rods are symmetrically formed in the two panels 7 at positions close to the two sides of the bottom of the car top wheel 4.
In this embodiment, a certain gap is left between each rope retaining rod arranged near the periphery of the top wheel 4 and the top wheel 4, so as to prevent the rope retaining rods from extruding the steel wire rope wound on the top wheel 4.
In this embodiment, the shock absorbing pads 3 are two groups, and are respectively located between the upper beam 1 and the support beam 2 on the corresponding side, and the shock absorbing pads of the same group are sequentially arranged along the length direction of the support beam.
In the embodiment, the damping cushions 3 are arranged symmetrically on two sides of the axis of the car top wheel.
In this embodiment, when the number of the shock absorbing pads 3 is an odd number, the shock absorbing pads are disposed between the upper beam 1 and the support beam 2 in the longitudinal direction of the support beam 2. Preferably, the shock-absorbing pads of the same group are arranged on the support beam 2 at equal distances.
In the present embodiment, the cushion 3 includes: an upper backing plate fixed with the upper beam 1 and a lower backing plate fixed with the support beam 2; and the elastic buffer is fixed between the upper backing plate and the lower backing plate.
Specifically, the bottom edge of the upper beam 1 is provided with an outward-turning installation part, and the two ends of the upper padding plate are matched with the installation part of the upper beam 1 to be provided with corresponding installation holes which are fixed through bolts.
Specifically, the upper edge of the supporting beam 2 is provided with an outwards-turned mounting platform, and the two ends of the lower backing plate are matched with the mounting platform of the supporting beam 2 to be provided with corresponding mounting holes and fixed through bolts.
In this embodiment, there are two sets of adjusting screws 5, which are respectively located between the upper beam 1 and the support beam 2 on the corresponding side, and the same set of adjusting screws 5 are symmetrically arranged on both sides of the axis of the car top wheel 4.
In this embodiment, the set of adjusting screws 5 includes two screws respectively located at two ends of the support beam 2 in the length direction.
In this embodiment, the head of the adjusting screw 5 is located on the top surface of the upper beam 1, the rod of the adjusting screw 5 extends downward and penetrates through the upper beam 1 and the supporting beam 2 right below, and at least two adjusting nuts on the same adjusting screw 5 are respectively located on the upper side and the lower side of the supporting beam 2.
Specifically, the head of the adjusting screw 5 is located on the top surface of the mounting part of the upper beam 1, and the rod part of the adjusting screw 5 extends downwards and penetrates through the mounting part of the upper beam 1 and the mounting platform of the supporting beam 2 right below. The adjusting nuts on the same adjusting screw 5 comprise an upper nut 11 locked on the top surface of the mounting platform of the support beam 2 and a lower nut 13 locked on the bottom surface of the mounting platform. The adjusting screw is locked through the matching of the upper nut 11 and the lower nut 13, and the distance between the upper beam 1 and the support beam 2 is kept.
In this embodiment, a rod passing hole is formed in a position where the rod part of the adjusting screw 5 penetrates through the upper beam 1 and the supporting beam 2, and the diameter of the rod passing hole is larger than that of the rod part, so that a certain interval exists between the rod part of the adjusting screw 5 and the rod passing hole. And, the head of the adjusting screw 5 needs to be kept upward, set on the top surface of the mounting portion of the upper beam 1, and its nut is fixed at its lower position. Therefore, even in the process of long-term operation of the elevator, under the condition that bolts are loosened and then fall off automatically due to periodic vibration, a proper and tiny gap is reserved for the diameter of the adjusting screw 5 by arranging the rod passing hole at the position where the rod part of the adjusting screw 5 penetrates through the upper beam 1 and the supporting beam 2, so that the plate thickness of the upper beam 1 and the tiny gap between the rod passing hole and the adjusting screw 5 can prevent the adjusting screw 5 from generating an overlarge inclination angle together, and even if the lower nut 13 falls off, the adjusting screw 5 can automatically loosen and fall off, and the excessive inclination of the supporting beam 2 is automatically limited.
Preferably, a middle nut 12 is further arranged between the upper nut 11 and the mounting platform of the support beam 2 to further lock the screw.
In this embodiment, the adjusting screw has a 5-position full thread structure.
In the present embodiment, a gap is reserved between the head of the adjusting screw 5 and the top surface of the upper beam 1. Therefore, when the supporting beam 2 inclines at a certain angle due to external force factors in the working process, a reserved gap between the head of the adjusting screw 5 and the top surface of the upper beam 1 is eliminated, and the limiting effect is achieved.
The step of replacing the shock pad 3 by using the structure of the car top wheel 4 in the embodiment comprises the following steps:
the lower nut 13 is first removed and the upper nut 11 is turned anticlockwise, i.e. turned back upwards, until the upper beam 1 is locked by the head of the adjusting screw together with the upper nut 11.
The middle nuts 12 are then turned clockwise, and it is noted that in this step, four middle nuts 12 are required to be turned clockwise at the same time, and the adjustment of each adjusting screw 5 is kept in synchronization in the following step, so as to keep the four corners of the support beam 2 uniformly and uniformly stressed.
In the embodiment, the force is increased by matching the adjusting screw rod 5 with the nut, or the force applying arm is increased by adopting a long wrench to reduce the force, and the nut can be prevented from slipping back by the special self-locking function of the adjusting screw rod 5 and the nut. The support beam 2 is gradually raised to a certain height in such a stepwise manner, whereby the cushion 3 can be removed and replaced. Then the middle nut 12 is loosened, the shock pad 3 is gradually compressed, the replacement process of the shock pad 3 is completed, basically 1-2 persons can complete the operation, the process is simple, and the time is saved.
In the above embodiment, only the normal hoisting ratio is 2: the embodiments of 1 and 1 set of the ceiling wheel 4 will be described as examples, but it is needless to say that when the hoisting ratio is 2: 1 and a plurality of sets of counterweight wheels, 4: mode 1 and several sets of counterweight wheels also can install the manufacturing and installation change that above-mentioned design realized sedan-chair top wheel 4 device, as long as set up according to above-mentioned rule can reach the purpose of the utility model with low costs.
The structure of the car top wheel 4 convenient for replacing the damping pad 3 is characterized in that the adjusting screw 5 and the nut penetrating through the upper beam 1 and the supporting beam 2 are utilized, so that when the damping pad 3 is replaced, only the adjusting screw 5 and the nut are needed to be utilized to open the upper beam 1 and the supporting beam 2 so as to increase the distance between the upper beam 1 and the supporting beam 2. In addition, in the whole process, only 1-2 persons are needed to complete the operation, the process is simple, and the time is saved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. Car top wheel structure convenient to change shock pad, its characterized in that, car top wheel structure includes:
an upper beam;
a support beam positioned right below the upper beam;
the shock pad is pressed between the upper beam and the support beam;
a car top wheel rotating and mounted on the support beam;
the adjusting screw rod penetrates between the upper beam and the supporting beam;
and the adjusting nut is arranged on the adjusting screw rod in a threaded manner and used for changing the distance between the upper beam and the supporting beam.
2. The ceiling wheel structure according to claim 1, wherein the upper beams and the support beams are arranged side by side, both ends of a rotating shaft of the ceiling wheel are rotatably mounted on the support beams on the corresponding sides, respectively, and an upper half of the ceiling wheel extends between the two upper beams.
3. The ceiling wheel structure of claim 1, wherein the length of the two support beams is greater than the diameter of the ceiling wheel, the rotating shaft of the ceiling wheel is installed in the middle of the support beams in the length direction, the lower half part of the ceiling wheel extends below the two support beams, and a protective cover is installed on the two support beams and surrounds the lower half part of the ceiling wheel.
4. The ceiling wheel structure of claim 3, wherein the shield comprises:
the car top wheel comprises two oppositely arranged panels, two supporting beams and a pair of supporting beams, wherein the two panels are respectively positioned at two axial sides of the car top wheel, and the top edge of each panel is fixed on the supporting beam at the corresponding side;
a lower plate connected between the bottom edges of the two panels;
two side plates connected between the side edges of the two panels.
5. The ceiling wheel structure of claim 4, wherein at least two rope blocking rods are inserted between the two panels, and each rope blocking rod is arranged close to the periphery of the ceiling wheel.
6. The ceiling wheel structure of claim 1, wherein the shock-absorbing pads are provided in two groups, respectively, between the upper beam and the support beam on the corresponding side, and the shock-absorbing pads of the same group are sequentially arranged along the length direction of the support beam.
7. The ceiling wheel structure of claim 1, wherein the shock pad comprises:
an upper base plate fixed with the upper beam;
a lower base plate fixed with the support beam;
and the elastic buffer is fixed between the upper backing plate and the lower backing plate.
8. The ceiling wheel structure of claim 1, wherein the two sets of adjusting screws are respectively located between the upper beam and the support beam on the corresponding side, and the same set of adjusting screws are symmetrically arranged on both sides of the axis of the ceiling wheel.
9. The car top wheel structure of claim 1, wherein the head of the adjusting screw is located on the top surface of the upper beam, the rod of the adjusting screw extends downward and penetrates through the upper beam and the supporting beam right below, and at least two adjusting nuts on the same adjusting screw are respectively located on the upper side and the lower side of the supporting beam.
10. The ceiling wheel structure of claim 9, wherein a gap is reserved between the head of the adjusting screw and the top surface of the upper beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922340890.1U CN211393496U (en) | 2019-12-23 | 2019-12-23 | Car top wheel structure convenient for replacing shock pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922340890.1U CN211393496U (en) | 2019-12-23 | 2019-12-23 | Car top wheel structure convenient for replacing shock pad |
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| Publication Number | Publication Date |
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| CN211393496U true CN211393496U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922340890.1U Active CN211393496U (en) | 2019-12-23 | 2019-12-23 | Car top wheel structure convenient for replacing shock pad |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014133A (en) * | 2021-11-26 | 2022-02-08 | 通用电梯股份有限公司 | Car roof structure |
| CN114030967A (en) * | 2021-10-29 | 2022-02-11 | 杭州奥立达电梯有限公司 | Safety protection system for vertical traffic suspension device |
-
2019
- 2019-12-23 CN CN201922340890.1U patent/CN211393496U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030967A (en) * | 2021-10-29 | 2022-02-11 | 杭州奥立达电梯有限公司 | Safety protection system for vertical traffic suspension device |
| CN114030967B (en) * | 2021-10-29 | 2023-08-25 | 杭州奥立达电梯有限公司 | Perpendicular traffic linkage safety protection system |
| CN114014133A (en) * | 2021-11-26 | 2022-02-08 | 通用电梯股份有限公司 | Car roof structure |
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