Hydraulic grab card device
Technical field
Technical field of petroleum extraction is the utility model is related to, more particularly to a kind of hydraulic grab card device.
Background technology
Workover rig or tractor hoist are most basic, most important power resources in well workover and Downhole Construction.By its operation
Structure is divided into two kinds of forms of crawler type and rubber-tyred.Workover rig plays the effect of key in terms of oil exploitation industry.
Hydraulic grab card device is the important component of workover rig, existing for catching oil pipe during being removed in oil pipe
Some hydraulic grab card devices are in the course of the work, it is impossible to tilt certain angle, grab pipe inconvenience, operating efficiency is low, security
It is low.
Utility model content
The utility model is simple and reasonable mainly solving the technical problems that provide a kind of hydraulic grab card device, whole
Body can tilt certain angle, be advantageous to grab pipe, put pipe operation, operating efficiency is high, and security is good.
In order to solve the above technical problems, the technical scheme that the utility model uses is:A kind of hydraulic grab card is provided
Device, including:
Support member, the support member are fixedly connected on the elevating mechanism of workover rig;
Elevator oil cylinder, the elevator oil cylinder include cylinder barrel and piston rod, the rear end of the cylinder barrel and the lower end of support member
Be hinged, the front portion of the cylinder barrel has a fixing card;
Rake angle oil cylinder, the external part of the rake angle oil cylinder are hinged with fixing card, the rear end of the rake angle oil cylinder and supporting part
Part is hinged;
Hydraulic grab card body, the hydraulic grab card body control its clamping and expansion action by elevator oil cylinder;
Hydraulic grab card servo rotary mechanism, the hydraulic grab card servo rotary mechanism are arranged on elevator oil cylinder, institute
Hydraulic grab card body is stated in hydraulic grab card servo rotary mechanism so that hydraulic grab card body can surround elevator
The axis of oil cylinder freely rotates.
In one preferred embodiment of the utility model, the support member includes two symmetrically arranged boatswain chairs, two
By connecting axis connection between the top and bottom of boatswain chair.
In one preferred embodiment of the utility model, the rear end of the elevator oil cylinder is hinged on the company positioned at boatswain chair lower end
In spindle, and between two boatswain chairs.
In one preferred embodiment of the utility model, the hydraulic grab card servo rotary mechanism includes cylinder barrel turn-around machine
Structure, First piston bar slew gear and second piston bar slew gear;
The cylinder barrel slew gear includes being sleeved on the cylinder barrel bearing holder (housing, cover) of cylinder barrel front end, the cylinder barrel bearing holder (housing, cover) with before cylinder barrel
Clutch shaft bearing group is installed between the outer wall of end;
The First piston bar slew gear includes being sleeved on First piston bar bearing holder (housing, cover) on piston rod rear end, and described the
Second bearing group is provided between one piston rod bearing sleeve and First piston bar;
The second piston bar slew gear includes being sleeved on second piston bar bearing holder (housing, cover) on piston rod front end, and described the
3rd bearing group is provided between two piston rod bearing sleeves and second piston bar;
The cylinder barrel bearing holder (housing, cover) is connected as an entirety with First piston bar bearing holder (housing, cover), and the cylinder barrel front end has a branch
Pushing out ring, the support ring are supported on below clutch shaft bearing group.
In one preferred embodiment of the utility model, the clutch shaft bearing group includes upper bearing (metal) and lower bearing, it is described on
Bearing is deep groove ball bearing, and the lower bearing is thrust ball bearing.
In one preferred embodiment of the utility model, elevator rotating shaft is provided with the First piston bar bearing holder (housing, cover),
Lower elevator rotating shaft is provided with the second piston bar bearing holder (housing, cover).
In one preferred embodiment of the utility model, the hydraulic grab card body include two " 7 " font parts and
Two " Z " font parts, one end of two " 7 " font parts are hinged in elevator rotating shaft, in two " Z " font parts
Portion is hinged in lower elevator rotating shaft, and the other end of one end of two " Z " font parts respectively with two " 7 " font parts is hinged
Together, it is mounted on slips on the other end of two " Z " font parts.
In one preferred embodiment of the utility model, locking key is provided with the hinge hole on " Z " the font part
Keyway, locking key is provided with the lower elevator rotating shaft.
In one preferred embodiment of the utility model, two limiting plates are additionally provided with the upper elevator rotating shaft, it is described
Connected between two limiting plates by multiple axostylus axostyles, the lower end of the limiting plate has the circular arc being engaged with lower elevator rotating shaft
Spacing bayonet.
The beneficial effects of the utility model are:The utility model hydraulic grab card device, it is simple and reasonable, integrally can be with
Certain angle is tilted, is advantageous to grab pipe, puts pipe operation, operating efficiency is high, and security is good.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein:
Fig. 1 is the structural representation of the preferred embodiment of the utility model hydraulic grab card device one;
Fig. 2 is Fig. 1 A-A to sectional view;
Fig. 3 is Fig. 2 partial enlarged drawing;
Fig. 4 is the side view of hydraulic grab card body part in Fig. 1;
Fig. 5 is structural representation when elevator apparatus opens.
The mark of each part is as follows in accompanying drawing:1st, elevator oil cylinder, 2, cylinder barrel, 3, piston rod, 4, fixing card, 5, rake angle oil
Cylinder, 6, boatswain chair, 7, connecting shaft, 8, cylinder barrel bearing holder (housing, cover), 9, clutch shaft bearing group, 10, First piston bar bearing holder (housing, cover), 11, second bearing
Group, 12, second piston bar bearing holder (housing, cover), 13,3rd bearing group, 14, support ring, 15, upper elevator rotating shaft, 16, lower elevator rotating shaft,
17th, " 7 " font part, 18, " Z " font part, 19, slips, 20, locking key keyway, 21, locking key, 22, limiting plate, 23, circle
Arc-shaped limit bayonet socket.
Embodiment
The technical scheme in the embodiment of the utility model will be clearly and completely described below, it is clear that described
Embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Fig. 1 to Fig. 5 is referred to, the utility model embodiment includes:
A kind of hydraulic grab card device, including:Support member, elevator oil cylinder 1, rake angle oil cylinder 5, hydraulic grab card body and
Hydraulic grab card servo rotary mechanism.
The support member is fixedly connected on the elevating mechanism of workover rig, and the support member is symmetrical arranged including two
Boatswain chair 6, connected by connecting shaft 7 between the top and bottom of two boatswain chairs.
The elevator oil cylinder includes cylinder barrel 2 and piston rod 3, and the rear end of the cylinder barrel and the lower end of support member are hinged, tool
Body, the rear end of the elevator oil cylinder is hinged in the connecting shaft of boatswain chair lower end, and between two boatswain chairs, the cylinder
The front portion of cylinder has a fixing card 4.
The external part of the rake angle oil cylinder 5 is be hinged with fixing card 4, and the rear end of the rake angle oil cylinder is hinged with support member,
Pin joint is located at the medium position of support member, and when rake angle oil cylinder is in stretching state, elevator oil cylinder is in vertical position, when
When rake angle oil cylinder is toward retraction, elevator oil cylinder can be driven to tilt certain angle, in order to capture oil pipe from tube-conveyer.
Hydraulic grab card body, the hydraulic grab card body control its clamping and expansion action by elevator oil cylinder;
Hydraulic grab card servo rotary mechanism, the hydraulic grab card servo rotary mechanism are arranged on elevator oil cylinder, institute
Hydraulic grab card body is stated in hydraulic grab card servo rotary mechanism so that hydraulic grab card body can surround elevator
The axis of oil cylinder freely rotates.
Specifically, the hydraulic grab card servo rotary mechanism includes cylinder barrel slew gear, First piston bar slew gear
With second piston bar slew gear;
The cylinder barrel slew gear includes the cylinder barrel bearing holder (housing, cover) 8 for being sleeved on cylinder barrel front end, the cylinder barrel bearing holder (housing, cover) and cylinder barrel
Clutch shaft bearing group 9 is installed between the outer wall of front end;
The First piston bar slew gear includes the First piston bar bearing holder (housing, cover) 10 being sleeved on piston rod rear end, described
Second bearing group 11 is provided between First piston bar bearing holder (housing, cover) and First piston bar;
The second piston bar slew gear includes the second piston bar bearing holder (housing, cover) 12 being sleeved on piston rod front end, described
3rd bearing group 13 is provided between second piston bar bearing holder (housing, cover) and second piston bar;
The cylinder barrel bearing holder (housing, cover) is connected as an entirety with First piston bar bearing holder (housing, cover), and the cylinder barrel front end has a branch
Pushing out ring 14, the support ring are supported on below clutch shaft bearing group.
Pass through the description of above-mentioned cylinder barrel slew gear, First piston bar slew gear and second piston bar slew gear, cylinder
The axis that cylinder bearing holder (housing, cover) 8, First piston bar bearing holder (housing, cover) 10, second piston bar bearing holder (housing, cover) 12 can surround elevator oil cylinder freely turns
It is dynamic.
Preferably, the clutch shaft bearing group includes upper bearing (metal) and lower bearing, and the upper bearing (metal) is deep groove ball bearing, under described
Bearing is thrust ball bearing.
Elevator rotating shaft 15 is provided with the First piston bar bearing holder (housing, cover), is provided with the second piston bar bearing holder (housing, cover)
Lower elevator rotating shaft 16.
The hydraulic grab card body includes two " 7 " font parts 17 and two " Z " font parts 18, two " 7 " words
One end of type part is hinged in elevator rotating shaft, and the middle part of two " Z " font parts is hinged in lower elevator rotating shaft, and two
One end of individual " Z " font part is hinged with the other end of two " 7 " font parts respectively, two " Z " font parts
Slips 19 is mounted on the other end.
By said structure, upper elevator rotating shaft 15, lower elevator rotating shaft 16 can follow First piston bar bearing holder (housing, cover) 10, second
Piston rod bearing sleeve 12 freely rotates around the axis of elevator oil cylinder together, and hydraulic grab card body is mounted in elevator
In rotating shaft 15 and lower elevator rotating shaft 16, therefore, on elevator apparatus crawl oil pipe during shackle, hydraulic grab card can be with
Realization rotates freely.
In addition, when the piston rod of elevator oil cylinder is retracted, hydraulic grab card body slowly opens, when the piston of elevator oil cylinder
When bar stretches out, hydraulic grab card body slowly clamps.
Preferably, locking key keyway 20 is provided with the hinge hole on described " Z " font part, in the lower elevator rotating shaft
Locking key 21 is provided with, in order to prevent elevator from being loosened after oil pipe is captured, this, which is in lower elevator rotating shaft, devises locking key, when
When elevator clamps, elevator oil cylinder will promote locking key to stick into keyway, the self-locking of elevator be realized, when elevator oil cylinder is received upwards
Retaining mechanism is opened therewith when returning.
Preferably, two limiting plates 22 are additionally provided with the upper elevator rotating shaft, by more between described two limiting plates
Individual axostylus axostyle connection, the lower end of the limiting plate have the circular arc spacing bayonet 23 being engaged with lower elevator rotating shaft, when elevator oil
When cylinder is retracted, circular arc spacing bayonet 23 can block lower elevator rotating shaft, prevent from excessively retracting, and avoid unnecessary trouble, peace
Good perfection.
The beneficial effects of the utility model are:The utility model hydraulic grab card device, it is simple and reasonable, integrally can be with
Certain angle is tilted, is advantageous to grab pipe, puts pipe operation, operating efficiency is high, and security is good.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, similarly it is included in scope of patent protection of the present utility model.