CN217348000U - Platform truck focus adjustment mechanism - Google Patents
Platform truck focus adjustment mechanism Download PDFInfo
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- CN217348000U CN217348000U CN202221006590.5U CN202221006590U CN217348000U CN 217348000 U CN217348000 U CN 217348000U CN 202221006590 U CN202221006590 U CN 202221006590U CN 217348000 U CN217348000 U CN 217348000U
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Abstract
The utility model discloses a platform truck focus adjustment mechanism. The adjusting mechanism consists of a gravity center adjusting mechanism, a gravity center monitoring mechanism and a control mechanism; the gravity center adjusting mechanism is arranged at the center of the lower part of the platform truck and is controlled and driven by the control mechanism; the gravity center adjusting mechanism comprises a balancing weight and a balancing weight moving device; the gravity center monitoring mechanism comprises tension sensors which are arranged on the four wheels through stress mechanisms respectively; the stress mechanism consists of a swingable upper hinged support and a swingable lower hinged support; the upper hinged support and the lower hinged support are hinged through an upper clamping plate and a lower clamping plate which are embedded at intervals, and the outer sides of the upper hinged support and the lower hinged support are connected through pin shafts at two ends to form a tension sensor. The utility model discloses a focus information is confirmed to platform truck four-wheel support's atress situation, through lead screw mechanism adjustment balancing weight position, and atress mechanism and force sensor set up reliable and stable, and to the operation of the large-scale platform truck of overweight, atress do not have the influence to real-time, accurately acquire and adjust platform truck's focus state, satisfy the security requirement.
Description
Technical Field
The utility model belongs to the technical field of mechanical design, especially, belong to platform truck focus adjustment control technical field, relate to a platform truck focus adjustment mechanism.
Background
The tunnel maintenance platform car is used for performing maintenance work such as grouting, cleaning, joint cutting and repairing on the duct piece. Before the platform truck walks along the circular section of jurisdiction in tunnel, should descend the platform truck platform to lower position, guarantee that the focus of platform truck in vertical direction is less than the center of circular section of jurisdiction to need to guarantee that the focus of platform truck horizontal direction is in the within range of allowwing.
According to the traditional method, the gravity center position information of the engineering equipment is obtained through a weighing sensor or a strain sensor, and meanwhile, as the platform truck belongs to a large movable platform device, the sensor needs to meet the requirements of safe operation and real-time acquisition of the gravity center information. Adopt tension sensor can acquire instant platform truck focus information in real time, realize timely focus adjustment, nevertheless how to satisfy large platform's safety requirement, more stable, reliably design installation tension sensor and focus adjusting device be the problem that needs the solution in the design of present large platform truck.
Disclosure of Invention
The utility model aims to solve the problem that a platform truck focus adjustment mechanism is provided. The utility model discloses a set up stable, reliable force sensor and acquire platform truck focus information and adjust large-scale platform truck focus in real time through platform truck focus adjustment mechanism, satisfy platform truck safe operation's needs.
The utility model discloses a following technical scheme realizes:
the utility model provides a platform truck focus adjustment mechanism, the platform truck is at the walking of tunnel bottom surface and have around totally four-wheel walking structure, its characterized in that: the adjusting mechanism consists of a gravity center adjusting mechanism, a gravity center monitoring mechanism and a control mechanism;
the gravity center adjusting mechanism is arranged at the center of the lower part of the platform truck and is controlled and driven by the control mechanism; the gravity center adjusting mechanism comprises a balancing weight and a balancing weight moving device;
the gravity center monitoring mechanism comprises tension sensors which are respectively arranged on the four wheels, and each tension sensor is in signal connection with the control mechanism; each tension sensor is arranged through a stress mechanism arranged on the four wheels, and each stress mechanism consists of an upper hinged support and a lower hinged support which can swing; the lower hinged support comprises two support legs, a support platform supported by the two support legs and a plurality of groups of lower clamping plates which are fixed in parallel on the upper plane of the support platform, and the two support legs are hinged with the wheel support through pin shafts perpendicular to the moving direction of the platform truck; the upper hinged support comprises an upper flat plate which is fixedly connected with a support beam of the platform car, and a plurality of groups of upper clamping plates are fixedly welded below the upper flat plate; the upper hinged support and the lower hinged support are hinged through an upper clamping plate and a lower clamping plate which are embedded at intervals and through pin shafts arranged along the moving direction of the platform truck; and a tension sensor is connected between the upper flat plate of the upper hinged support and the outer side of the support platform of the lower hinged support through pin shafts at two ends.
And the balancing weight moving device of the gravity center adjusting mechanism are arranged on a plane frame, the plane frame is a rectangular frame and is fixed at the lower part of the platform truck, the balancing weight is transversely movably arranged along the rectangular frame, the middle part of the balancing weight is in driving connection with a hydraulic motor through a lead screw, and the hydraulic motor is controlled and driven by a control mechanism.
The upper end of the tension sensor is hinged with an upper clamping plate of the upper hinged support through a connecting pull ring and a pin shaft, the lower end of the tension sensor is hinged with a lower clamping plate of the lower hinged support through another connecting pull ring and a pin shaft, and other upper clamping plates of the upper hinged support are hinged with the lower clamping plate of the lower hinged support in the corresponding position through two ends of a connecting plate respectively.
Furthermore, the upper clamping plate of the upper hinged support is hinged with the lower clamping plate of the lower hinged support through at least three groups of connecting plates.
The utility model discloses a force sensor acquires the atress information that platform truck four-wheel supported, judges whether platform truck focus position is at reasonable within range through the atress information, if not at reasonable within range, then drives lead screw motion adjustment balancing weight position through hydraulic motor, with platform truck focus control at reasonable within range.
The utility model discloses a set up in the focus information that platform truck was gathered to platform truck running gear atress position force sensor to carry out platform truck focus automatically regulated through control mechanism drive lead screw mechanism.
The utility model discloses a platform truck's focus information is confirmed to platform truck four-wheel support's atress situation to through lead screw mechanism adjustment balancing weight position, platform truck focus adjustment is accurate, stable, reliable. The utility model discloses atress mechanism and force sensor set up reliable and stable, do not have the influence to operation, the atress of the large-scale platform truck of overweight to can acquire the focus change state of platform truck in real time, accurately, satisfy the security requirement.
Drawings
FIG. 1 is a schematic view of the installation position of the sensor of the present invention;
FIG. 2 is a perspective view of the sensor mounting structure of the present invention;
FIG. 3 is a front schematic view of the sensor mounting structure of the present invention;
fig. 4 is a schematic view of a center of gravity adjustment mechanism.
In the figure, 1 is a wheel, 2 is a driven wheel shafting structure, 3 is a pin shaft I, 4 is a driving wheel shafting structure, 5 is a lower hinged support, 51 is a lower snap-gauge, 52 is a supporting leg, 6 is a platform truck, 7 is an upper hinged support, 71 is an upper snap-gauge, 8 is a pin shaft II, 9 is a wheel support, 10 is a pin shaft III, 11 is a connecting pull ring, 12 is a tension sensor, 13 is a pin shaft IV, and 14 is a tunnel; 15 is a hydraulic motor, 16 is a screw rod, 17 is a plane frame, and 18 is a balancing weight.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.
With reference to the attached drawings.
As shown in the figure, the platform truck 6 of the utility model travels on the bottom surface of the tunnel 14 and has four groups of wheels 1 traveling structures, the adjusting mechanism is composed of a gravity center adjusting mechanism, a gravity center monitoring mechanism and a control mechanism;
as shown in fig. 1 and 4, the center of gravity adjusting mechanism is arranged at the center of the lower part of the platform truck 6 and is controlled and driven by the control mechanism; the gravity center adjusting mechanism comprises a balancing weight 18 and a balancing weight moving device;
as shown in fig. 2 and 3, the gravity center monitoring mechanism comprises tension sensors 12 respectively arranged on the four wheels 1, and each tension sensor 12 is in signal connection with the control mechanism; each tension sensor 12 is arranged through a stress mechanism arranged on the four wheels 1, and the stress mechanism consists of an upper hinged support 7 and a lower hinged support 5 which can swing; the lower hinged support 5 comprises two support legs 52, a support platform supported by the two support legs 52 and a plurality of groups of lower clamping plates 51 which are fixed in parallel on the upper plane of the support platform, and the two support legs 52 are hinged with the wheel support 9 through a pin shaft I3 which is vertical to the moving direction of the platform truck; the upper hinged support 7 comprises an upper flat plate which is fixedly connected with a support beam of the platform truck 6, and a plurality of groups of upper clamping plates 71 are fixedly welded below the upper flat plate; the upper hinged support 7 and the lower hinged support 5 are hinged through an upper clamping plate 71 and a lower clamping plate 51 which are embedded at intervals and through a pin shaft II 8 arranged along the moving direction of the platform truck 6; and a tension sensor 12 is connected and arranged between the upper flat plate of the upper hinged support 7 and the outer side of the support platform of the lower hinged support 5 through pin shafts III 10 at two ends.
As shown in fig. 4, the counterweight block 18 and the counterweight block moving device of the gravity center adjusting mechanism are disposed on a planar frame 17, the planar frame 17 is a rectangular frame and is fixed on the lower portion of the platform truck 1, the counterweight block 18 is transversely movably disposed along the rectangular frame, the middle portion of the counterweight block 18 is in driving connection with the hydraulic motor 15 through a screw rod 16, and the hydraulic motor 15 is controlled and driven by the control mechanism.
As shown in fig. 2 and 3, the upper end of the tension sensor 12 is hinged to an upper clamping plate 71 of the upper hinge support 7 through a connecting pull ring 11 and a pin shaft iii 10, the lower end of the tension sensor 12 is hinged to a lower clamping plate 51 of the lower hinge support 5 through another connecting pull ring 11 and a pin shaft iv 13, and the other upper clamping plates 71 of the upper hinge support 7 are hinged to the lower clamping plate 51 of the lower hinge support 5 at the corresponding positions through two ends of a connecting plate.
The upper clamping plate 71 of the upper hinged support 7 is hinged with the lower clamping plate 51 of the lower hinged support 5 through at least three groups of connecting plates.
As shown in fig. 2 and 3, the wheels 1 are respectively arranged in front and at the back, one group is a hydraulic driving wheel, the other group is a driven wheel, the frame of the platform truck 6 is fixed on an upper hinged support 7, the upper hinged support 7 is connected with a lower hinged support 5 through a pin shaft II 8, the lower hinged support 5 is connected with a wheel support 9 through a pin shaft I3, and the upper hinged support 7 can rotate at a certain angle on the plane through the pin shaft II 8 so as to meet the walking requirements in different tunnel 14 hole diameters. When the platform truck 6 walks on the tunnel, the four tension sensors 12 can obtain the load bearing data of the four wheels stressed respectively on the body of the platform truck, and the eccentric coefficient of the platform truck in the horizontal direction can be judged according to the load bearing data and adjusted through the gravity center adjusting mechanism.
Claims (4)
1. The utility model provides a platform truck focus adjustment mechanism, the platform truck is at the walking of tunnel bottom surface and have around totally four-wheel walking structure, its characterized in that: the adjusting mechanism consists of a gravity center adjusting mechanism, a gravity center monitoring mechanism and a control mechanism;
the gravity center adjusting mechanism is arranged at the center of the lower part of the platform truck and is controlled and driven by the control mechanism; the gravity center adjusting mechanism comprises a balancing weight and a balancing weight moving device;
the gravity center monitoring mechanism comprises tension sensors which are respectively arranged on the four wheels, and each tension sensor is in signal connection with the control mechanism; each tension sensor is arranged through a stress mechanism arranged on the four wheels, and each stress mechanism consists of an upper hinged support and a lower hinged support which can swing; the lower hinged support comprises two support legs, a support platform supported by the two support legs and a plurality of groups of lower clamping plates which are fixed in parallel on the upper plane of the support platform, and the two support legs are hinged with the wheel support through pin shafts perpendicular to the moving direction of the platform truck; the upper hinged support comprises an upper flat plate which is fixedly connected with a support beam of the platform car, and a plurality of groups of upper clamping plates are fixedly welded below the upper flat plate; the upper hinged support and the lower hinged support are hinged through an upper clamping plate and a lower clamping plate which are embedded at intervals and through pin shafts arranged along the moving direction of the platform truck; and a tension sensor is connected between the upper flat plate of the upper hinged support and the outer side of the support platform of the lower hinged support through pin shafts at two ends.
2. The dolly center of gravity adjustment mechanism of claim 1, wherein: the balancing weight and the balancing weight moving device of the gravity center adjusting mechanism are arranged on a plane frame, the plane frame is a rectangular frame and is fixed on the lower part of the platform truck, the balancing weight is transversely movably arranged along the rectangular frame, the middle part of the balancing weight is in driving connection with a hydraulic motor through a lead screw, and the hydraulic motor is controlled and driven by a control mechanism.
3. The dolly center of gravity adjustment mechanism of claim 2, wherein: the upper end of the tension sensor is hinged with an upper clamping plate of the upper hinged support through a connecting pull ring and a pin shaft, the lower end of the tension sensor is hinged with a lower clamping plate of the lower hinged support through another connecting pull ring and a pin shaft, and other upper clamping plates of the upper hinged support are hinged with the lower clamping plate of the lower hinged support in the corresponding position through two ends of a connecting plate respectively.
4. The center of gravity adjustment mechanism for flatbeds of claim 3, further comprising: the upper clamping plate of the upper hinged support is hinged with the lower clamping plate of the lower hinged support through at least three groups of connecting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221006590.5U CN217348000U (en) | 2022-04-24 | 2022-04-24 | Platform truck focus adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221006590.5U CN217348000U (en) | 2022-04-24 | 2022-04-24 | Platform truck focus adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217348000U true CN217348000U (en) | 2022-09-02 |
Family
ID=83057502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221006590.5U Active CN217348000U (en) | 2022-04-24 | 2022-04-24 | Platform truck focus adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217348000U (en) |
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2022
- 2022-04-24 CN CN202221006590.5U patent/CN217348000U/en active Active
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