CN210480554U

CN210480554U - Tank bearing device and cradle

Info

Publication number: CN210480554U
Application number: CN201921089892.1U
Authority: CN
Inventors: 江澎; 刘智昕; 杨建奎; 闫博; 胡刘扣
Original assignee: Shandong Nuotai Electrical Equipment Co ltd
Current assignee: Shandong Nuotai Electrical Equipment Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-05-08
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a hold a jar device and cage chair, hold a jar device is the component part of cage chair, wherein holds a jar device and includes: a frame; the supporting claw is provided with a claw body extending in the preset direction, one end of the claw body in the preset direction is a supporting part for bearing the tank, the other end of the claw body is a force application end, one side of the claw body in the preset direction is provided with a hinge part, and the supporting claw is hinged to a first position of the rack through the hinge part; the supporting rod is a rigid rod, one end of the supporting rod is hinged with the force application end, and the other end of the supporting rod is hinged at a second position of the rack; and the power assembly outputs and drives the support rod to rotate around a hinge shaft matched with the hinge assembly of the support rod so as to control the state of the support claw. Based on the utility model discloses support state under bracing height variation is less relatively, and is favorable to for example the business turn over of vehicle or other bearing article.

Description

Tank bearing device and cradle

Technical Field

The utility model relates to a hold a jar device, the utility model discloses still relate to a cradle that is furnished with a jar device.

Background

The cradle implements the Chinese industry standard MT217-90 (cradle for vertical shaft cage), and is a movable platform for receiving the cage and entering and exiting the parking lot, so that the empty and heavy vehicles inside and outside the cage can be replaced smoothly. When the cage is not loaded, the rocker arm of the cradle is forcibly lifted by external power, and when the cage works, the rocker arm floats on the bottom plate of the cage by dead weight to carry out carrying work. The cage is hung by the steel wire rope, and it can be understood that if the cage is under a small load, the stretching amount of the steel wire rope is relatively small, and if the load is large, the stretching amount of the steel wire rope is relatively large, and if the cage is not locked in position, the position relation between the cradle and the cage is greatly changed. For example, the maximum mass of some heavy flatcars is more than 40 tons, and the up-and-down floating amount of a cage bottom plate is large before and after the cage enters or exits.

In view of this, it is often necessary to provide a separate cage supporting device for the cradle, such as chinese patent document CN103612963A, which discloses a cage supporting device with a cage locking device, the basic structure of which is that it includes a supporting claw with a substantially triangular shape, a hinge hole is formed at one vertex of the supporting claw, another vertex is used as a driving end, and the remaining vertex is used to support the bottom of the cage, wherein the driving end is pushed by an oil cylinder, so that the supporting claw can rotate to be in the working position or be out of the working position. For example, when a vehicle enters or leaves a cage, the impact on the cage is large, and the impact on the cage is directly borne by a hydraulic cylinder. In addition, the structure generally cannot adjust the supporting position of the cage, and the adaptability is poor.

Chinese patent document CN208120522U discloses a buffer tank locking cradle, the principle of a tank supporting device provided in the buffer tank locking cradle is basically the same as that of the tank supporting device disclosed in chinese patent document CN103612963A, and the difference is that the cylinder seat of the hydraulic cylinder provided in the tank supporting device in chinese patent document CN208120522U is an elastic support, which can buffer the impact of the hydraulic cylinder in the axial direction. It should be noted that, when the cage load changes, the pressure on the supporting claw changes, and if the elastic support is adopted, the position of the supporting claw inevitably changes, that is, the supporting height of the cage changes, especially, the elastic support is made of a spring, the compression amount is in direct proportion to the force applied, so that a large height difference change exists between the rocker arm and the cage bottom plate, and normal operation of entering and exiting the cage is affected.

Disclosure of Invention

An object of the utility model is to provide a supporting state under bracing altitude variation is less relatively holds a jar device, the utility model provides a possess this cage device's cage chair.

The embodiment of the utility model provides an in, provide a hold a jar device, include:

a frame;

the supporting claw is provided with a claw body extending in the preset direction, one end of the claw body in the preset direction is a supporting part for bearing the tank, the other end of the claw body is a force application end, one side of the claw body in the preset direction is provided with a hinge part, and the supporting claw is hinged to a first position of the rack through the hinge part;

the supporting rod is a rigid rod, one end of the supporting rod is hinged with the force application end, and the other end of the supporting rod is hinged at a second position of the rack; and

and the output of the power assembly drives the support rod to rotate around a hinge shaft matched with the hinge of the power assembly so as to control the state of the supporting claw.

In the above can receiving device, the support portion may include:

the first structure is a rigid cylindrical support part and supports the bottom of the cage through a cylindrical surface;

the second structure is a roller arranged at one end of the claw body and used for being jointed with the bottom of the cage; or

A third structure, wherein the supporting part is provided with a supporting surface which is jointed with the bottom of the cage to form surface contact support;

the hinge hole matched with the force application end is a long hole.

Optionally, adapted to the third structure, the support surface has a buffer layer thereon.

Optionally, when the supporting jaw is in the tank bearing state, the pressure angle of the supporting jaw acting on the supporting rod is smaller than the friction angle of the hinge assembly matched with the hinge of the supporting rod.

Optionally, the power assembly is a fluid cylinder, and the tail end of the cylinder body of the fluid cylinder is hinged to the third position of the rack;

the push rod of the fluid cylinder is hinged on the support rod.

Optionally, the support rod is a screw adjustment rod.

Optionally, the adjustment lever comprises:

a sleeve having an internal thread;

a first rod having an external thread and partially screwed into the sleeve from one end thereof;

a second rod having an external thread and partially screwed into the sleeve from the other end of the sleeve;

the part of the first rod exposed out of the sleeve is provided with a first hinge hole, and the part of the second rod exposed out of the sleeve is provided with a second hinge hole.

Optionally, the threads on the first rod are oppositely threaded to the threads on the second rod.

Optionally, each of the first and second rods is provided with a locking nut to lock after the first or second rod is adjusted in position.

Optionally, a fastening screw hole is formed in the side surface of the locking nut;

accordingly, a set screw is provided for the tightening of the lock nut.

Be different from the mode that current direct adoption pneumatic cylinder drive held in the palm the utility model discloses an in the embodiment, use the bracing piece to support and hold in the palm the claw, the bracing piece is the rigidity pole, can form comparatively firm support to the cage through holding in the palm the claw. The support rod is a rod piece, and the support rod can be expressed as a two-force rod in an ideal state, in other words, most of force transmitted by the cage through the supporting claw acts on a hinged support of the two-force rod, and for a power assembly for driving the two-force rod to realize the state conversion of the supporting claw, the force applied to the power assembly is relatively small, and no matter whether a hydraulic cylinder is adopted by the power assembly, the damage to the power assembly can be almost ignored. Because the bracing piece can provide the support of relative rigidity, the cage business turn over goods or people can not produce the fluctuation, perhaps float the volume very little, have alleviateed cage operating system's burden.

Drawings

FIG. 1 is a schematic structural diagram of a cradle-carrying state in a front view according to an embodiment.

Fig. 2 is a schematic view of the top structure corresponding to fig. 1 (cage omitted).

Fig. 3 is a schematic structural view of a supporting claw in an embodiment.

FIG. 4 is a schematic diagram of an embodiment of an adjustment lever.

In the figure: 1. the automatic lifting device comprises a vehicle entering side rack, 2 parts of a base, 3 parts of a hinge shaft, 4 parts of a power cylinder, 5 parts of a hinge shaft, 6 parts of an adjusting rod, 7 parts of a supporting claw, 8 parts of a cage, 9 parts of a cage base, 10 parts of a hinge shaft, 11 parts of a hinge shaft, 12 parts of a hinge shaft, 13 parts of a base, 14 parts of a vehicle exiting side rack, 15 parts of a vehicle entering side rear floor, 16 parts of a vehicle entering side rocker arm platform, 17 parts of a vehicle exiting side rocker arm platform, 18 parts of a vehicle exiting side rear floor, 19 parts of a self-adaptive hinge hole, 20 claw bodies, 21 parts of a supporting part, 22 parts of a buffer layer, 23 parts of a circular hinge hole, 24 parts of a left-handed locking nut, 25 parts of a left-handed threaded rod, 26 parts of a sleeve, 27 parts of a right-handed threaded rod.

Detailed Description

Referring to fig. 1 and 2, a cradle is generally provided at a well head or a well bottom or other portion to be docked with a shaft, and the position shown in fig. 1 and 2 is exemplified as a well head position. The left side of the figure shows the direction of the vehicle entering side, and the right side shows the direction of the vehicle exiting side.

Assuming that the cage 8 is lifted from the shaft to a position, the cradle is laid flat and overlapped with the cage 8, vehicles and the like in the cage 8 are taken out of the cage 8 from the right side, and facilities outside the cage such as empty vehicles and the like enter the cage 8 from the left side, in the process, the stress of a steel wire rope for hoisting the cage 8 is changed, and the elongation is changed accordingly, in order to ensure that the overlapping of the cradle and the cage 8 is reliable and avoid generating large variation of the tilt angle of the cradle, when the cage 8 is taken in or out of the vehicles or other carried articles or persons, for example, the cage 8 needs to be supported by using the supporting claws 7, so that the position of the cage 8 in the vertical direction of the shaft is basically stable.

In a conventional implementation, the holding claw 7 is directly actuated by, for example, a hydraulic cylinder, with the possibility of changing between a first condition of avoiding the cage 8 and a second condition of holding the cage 8, the hydraulic cylinder being subjected to a large impact when the cage and its load change, which impact causes great damage to the seals of the hydraulic cylinder, as well as to the hydraulic system. Especially, the leakage problem of hydraulic oil in the hydraulic system is always a problem which is difficult to solve in the field, frequent impact often causes leakage of a large amount of hydraulic oil and great damage to a sealing element, so that the environment is polluted, and the hydraulic system is required to compensate lost hydraulic oil in time so as to maintain the supporting state of the supporting claw 7.

In addition, the change of the telescopic amount of the hydraulic cylinder can cause the fluctuation of the supporting height of the cage 8, and further the reliability of the cage 8 lifting system is influenced.

In the embodiment of the present invention, for convenience of description, the vehicle-entering side frame 1 and the vehicle-exiting side frame 14 are collectively referred to as a frame, and other parts of the tank-holding device are installed below the cradle rocker arm.

Regarding the cradle itself, the basic structure is a common structure in the field, and there are some conventional descriptions in the coal industry standard MT217-90, which will not be described herein.

In fig. 1 and 2, the vehicle-entrance side frame 1 constituting the frame has a constant height. The effective component of the holding force provided by the holding claw 7 is an upward force, generally speaking, after the cage 8 is in place, the holding claw 7 is approximately positioned at the lower side of the cage 8, generally, in the field, for example, a hydraulic cylinder is arranged in a horizontal state for reducing the overall height of the frame, in other words, a power arm applied by the hydraulic cylinder is very small, on the one hand, the hydraulic cylinder has a relatively high requirement on the hydraulic cylinder, and a larger force needs to be applied, on the other hand, the power arm of the hydraulic cylinder belongs to a resistance arm relative to the cage 8, and the resistance arm is small, inevitably, and the impact force applied by the hydraulic cylinder is very large.

The frame shown in fig. 1 is relatively high, which provides space for the arrangement of the adjusting lever 6, and the adjusting lever 6 is in an inclined state, and the arm of force of the adjusting lever 6 is relatively large under the condition that the specifications of the supporting claws 7 are the same.

The adjustment lever 6 is shown in the figure as a two-force lever, which is an ideal model, and it can be simply understood that the force transmitted from one end is transmitted substantially along the lever, so that no force is applied to the parts on its side. Although for example the adjusting rod is not an ideal two-force rod, if the reaction force exerted by the cage 8 is not sufficient to produce a rotation of the adjusting rod 6, the power cylinder 4, for example as shown in the figures, is not subjected to said reaction force. In other words, the power cylinder 4 mainly provides for the change of the state of the adjusting rod 6 without additional impacts, so that even if a fluid cylinder, such as a hydraulic cylinder, is used for the power cylinder 4, the impacts are very limited, so that a relatively small hydraulic cylinder can be used and the demands on the hydraulic system are not high.

With respect to the supporting jaw 7, in the field of can-holding devices, the structure of the supporting jaw 7 is very different and can be understood as a triangular structure as a whole, wherein one vertex is used for supporting the cage 8, another vertex is used for hinging with, for example, the adjusting rod 6, and the remaining vertex is used for hinging the supporting jaw 7 on the machine frame.

For convenience of description, the structure of the holding claw 7 is identified as follows:

first the holding claw 7 has a claw body 20 extending in a predetermined direction, which is defined by a holding working end and an end hinged to the adjusting lever 6, both ends defining a direction corresponding to two points, which is the desired basic direction and ideally coincides with the lever direction of the adjusting lever 6 when the holding claw 7 is in the holding state.

One end of the claw body 20 in the preset direction is a supporting part for bearing the tank, the other end is a force application end, one side of the claw body 20 in the preset direction is provided with a hinging part, and the supporting claw 7 is hinged at a first position of the rack through the hinging part.

The distance of the hinge from the predetermined direction is a parameter for determining the force arm of the adjusting lever 6, and of course, the structural parameters of the supporting claw 7 are basically determined in the field, and the details of the parameters are not described.

For the adjusting rod 6, the adjusting rod 6 has a rod length adjusting structure, and the rod length adjustment is considered to enable the supported cage 8 to be in a proper position in the vertical shaft, so that the adjusting rod has better adaptability, and obviously, the current cage bearing device can only realize bearing of one position of the cage 8 and cannot be adjusted according to working conditions.

After the adjusting rod 6 is adjusted in place, the length of the adjusting rod is not changed any more, and the adjusting rod can be used as a rigid rod.

Correspondingly, the adjusting rod 6 can directly adopt a non-adjustable rod piece, and is used for being the same as the traditional supporting rod without considering the adjustability, even if the rod piece can be distinguished from supporting pieces such as a hydraulic cylinder, and the hydraulic cylinder can generate oil return when being impacted to damage a hydraulic system. Rigid rods are different and can provide rigid support.

In fig. 1, the adjusting rod 6 is installed on the frame through the base 13, the base 13 and the frame are detachably connected through bolts, and the base 13 can be replaced if deformation occurs due to long-term stress.

One end of the adjusting rod 6 is hinged with the force application end, the other end of the adjusting rod is hinged at a second position of the frame, the second position is lower than the first position, and the adjusting rod 6 is in an inclined state.

The reaction force to which the power cylinder 4 is subjected, for example, is relatively small and hardly influenced by the impact force, limited by the form of the force applied by the adjusting lever 6 in the canister-receiving state.

In the state shown in fig. 1, when the power cylinder 4 is retracted, for example, if the adjusting rod 6 on the left side rotates counterclockwise, the supporting claw 7 rotates clockwise to disengage the supporting portion 21 of the supporting claw 7 from the cage base 9 of the cage 8, and the matching and position relationship between the supporting claw 7 and the cage 8 is conventional and will not be described herein again. In the case of the cylinder 4 alone, it is actually used mainly to drive the adjustment rod 6, without the reaction force itself being great.

Regarding the supporting portion 21, in the embodiment of the present invention, the following three structures can be selected, and other structures can also be selected:

in the first configuration, the support portion 21 is a rigid cylindrical support portion, and the cage bottom is supported by the cylindrical support portion, and the cage bottom and the support portion 21 are generally in line contact in an ideal state.

The second structure, the supporting part is constructed as the gyro wheel of installing in claw 20 one end, and the gyro wheel is used for with cage bottom joint, and this uses more when holding in the palm 7 application of force parts directly for the pneumatic cylinder, when lieing in cage 8 position fluctuation, the gyro wheel can produce rolling friction with the cage bottom, can reduce the damage to the cage bottom, and in prior art, the second structure belongs to preferred structure for first structure, and in the embodiment of the utility model, because of cage 8 fluctuation is effectively restrained, the second structure no longer is preferred structure.

In a preferred embodiment, the third structure is used, and the support part has a support surface which is engaged with the bottom of the cage to form a surface contact support to improve the supporting ability.

Further, when the supporting claw 7 is impacted by the cage 8, the self-adaptive hinge hole 19 can provide a controllable amount of impact stroke of the hinge shaft matched with the self-adaptive hinge hole 19, so that the rigid impact on the supporting rod is reduced.

Further, the buffer layer 22 is arranged on the supporting surface, so that the impact of the cage 8 on the supporting rod can be further reduced. The damping stroke of the damping layer 22 is relatively small without causing significant up-and-down floating of the cage 8.

The buffer layer 22 is preferably a polyurethane buffer layer, but other buffer layers of the same type, or better or worse, may be used to suit different applications.

In a further preferred embodiment, the pressure angle of the pawl 7 on the adjusting lever 6 when the pawl 7 is in the can supporting state is smaller than the friction angle of the hinge assembly adapted to the hinge of the adjusting lever 6, in other words, the force of the pawl 7 on the adjusting lever 6 is not enough to rotate the adjusting lever 6 when the pawl 7 is in the can supporting state, so that no impact is generated on the power cylinder 4 even if the load of the cage 8 changes greatly.

As mentioned above, the power unit is preferably a fluid cylinder, such as a hydraulic cylinder or an air cylinder, which has a certain working stroke and facilitates the change between the two states of the holding jaw 7. What the power cylinder 4 realized is linear motion, and it can be understood that linear motion is one of the most basic motions in the field of machinery, and therefore, the mechanical mechanism that can provide linear motion can also all be used in the utility model discloses in.

In addition, because the impact on the power assembly is small, the requirement on the type selection of the linear motion mechanism is relatively low.

In addition, it can be understood that, since the movement realized by the adjusting lever 6 is rotation, a mechanical mechanism capable of outputting rotation may also be applied in the embodiment of the present invention.

If the power assembly is a fluid cylinder, the tail end of the cylinder body of the fluid cylinder is hinged to the third position of the rack;

correspondingly, the push rod of the fluid cylinder is hinged on the adjusting rod.

The first position, the second position and the third position are arranged substantially triangularly in a vertical plane, the third position being higher than the second position but lower than the first position.

Fig. 4 shows a preferred construction of the adjustment rod, the basic construction of which is a helical construction, i.e. constituting a helical adjustment rod.

Further, the adjusting lever includes:

a sleeve 26 having an internal thread;

a first rod having an external thread and partially screwed into the sleeve 26 from one end of the sleeve 26;

a second rod having an external thread and partially screwed into the sleeve 26 from the other end of the sleeve 26;

the part of the first rod exposed out of the sleeve 26 is provided with a first hinge hole, and the part of the second rod exposed out of the sleeve 26 is provided with a second hinge hole.

The length of the adjustment rod 6 can be adjusted by, for example, the length of the first rod that is screwed into the sleeve 26.

In a preferred embodiment, the threads on the first rod are oppositely threaded to the threads on the second rod. The first rod shown in fig. 4 uses a left-hand threaded rod 25 and the second rod uses a right-hand threaded rod 27, in which case the adjustment of the length of the adjustment rod 6 can be achieved by rotating the sleeve 26 without having to remove further parts.

Further, each of the first and second rods is provided with a lock nut to lock after the first or second rod is adjusted in position. As shown in fig. 4 for the left hand locking nut 24 and the right hand locking nut 28, after the two rods are adjusted in place, the locking nuts are screwed into the ends of the sleeve 26 and locked.

In some embodiments, the side surface of the locking nut can be provided with a jackscrew hole, and the jackscrew is also called a set screw, so that the locking nut can be further locked, and the locking capacity is improved.

Claims

1. A can holding device, comprising:

a frame;

2. A canister holding apparatus according to claim 1, wherein the support portion has:

the hinge hole matched with the force application end is a long hole.

3. A tank bearing device according to claim 2 adapted to the third structure, the support surface having a cushioning layer thereon.

4. A tank bearing device according to claim 2 or 3, wherein the pressure angle of the supporting jaw on the supporting rod is smaller than the friction angle of the hinge assembly adapted to the hinge of the supporting rod when the supporting jaw is in the tank bearing state.

5. The apparatus according to claim 1, wherein the power assembly is a fluid cylinder, and the tail end of the cylinder body of the fluid cylinder is hinged to the third position of the frame;

the push rod of the fluid cylinder is hinged on the support rod.

6. A canister carrying arrangement according to claim 1, characterised in that the support bar is a screw adjustment bar.

7. A canister carrying arrangement according to claim 6, characterised in that the adjustment lever comprises:

a sleeve having an internal thread;

8. A canister assembly according to claim 7 characterised in that the threads on the first rod are of opposite hand to the threads on the second rod.

9. A canister holding device as claimed in claim 7 or 8, wherein the first and second rods are each provided with a locking nut to lock after the first or second rod has been adjusted into position.

10. A cradle comprising the tank receiving device according to any one of claims 1 to 9.