CN204284374U - There is belt to wreck the belt pulley of protective gear - Google Patents
There is belt to wreck the belt pulley of protective gear Download PDFInfo
- Publication number
- CN204284374U CN204284374U CN201420733952.XU CN201420733952U CN204284374U CN 204284374 U CN204284374 U CN 204284374U CN 201420733952 U CN201420733952 U CN 201420733952U CN 204284374 U CN204284374 U CN 204284374U
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- belt
- elastic element
- belt pulley
- support arm
- wheel rim
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Abstract
The utility model provides a kind ofly to be had belt and to wreck the belt pulley of protective gear, comprise the first belt pulley, the second belt pulley, central shaft, ejector and bearing, second belt pulley and the first belt pulley are arranged side by side at axial direction, and central axle sleeve is located in the first wheel shaft also through the second wheel rim; Ejector comprises elastic element group, elastic element shell, the first support arm and the second support arm, and elastic element group to be sheathed on central shaft and the radial direction of axle centered by telescopic direction, and elastic element shell is coated on outside elastic element group; One end of first support arm is connected with the outer wall of elastic element shell, the other end runs through the first wheel rim, one end of second support arm is connected with the outer wall of elastic element shell, bearing housing is located between the second wheel rim and elastic element shell, second support arm runs through inner ring and retainer, and outer ring inwall is provided with multiple draw-in groove to the second support arm location.Wherein, the second belt pulley is belt pulley for subsequent use, can remain in operation after the belt of the first belt pulley wrecks.
Description
Technical field
The utility model relates to belt pulley, especially a kind of in pumping unit, can to wreck the belt pulley of protective gear at the belt belt that has making belt pulley for subsequent use remain in operation instantaneously that wrecks.
Background technique
In petroleum production process, generally adopt pumping unit to drive rod pump to produce, belt is the transmission device in pumping unit between motor and speed reducer, in process of production long-time high loaded process, easy to wear, if changed not in time, belt can be there is and to wreck accident, production is impacted, damage is caused to equipment, and because belt wrecks, greatly, pumping unit energy out of control is large, also there is very large potential safety hazard for pumping unit inertia instantaneously.
Model utility content
The purpose of this utility model is to provide a kind ofly to be had belt and to wreck the belt pulley of protective gear, the defect causing pumping unit out of control after the belt existed to solve prior art wrecks.
For achieving the above object, the utility model proposes and a kind ofly have belt and to wreck the belt pulley of protective gear, comprising: the first belt pulley, is primary belt pulley, comprises the first wheel shaft and the first wheel rim; Second belt pulley, be belt pulley for subsequent use, be arranged side by side with described first belt pulley at axial direction, described second belt pulley comprises the second wheel rim; Central shaft, is sheathed in described first wheel shaft also through described second wheel rim; Ejector, comprising: elastic element group, is annular, is sheathed on described central shaft, and is positioned at inside described first wheel rim and described second wheel rim, and the telescopic direction of described elastic element group is the radial direction of described central shaft; Elastic element shell, is coated on outside described elastic element group, and is formed by multiple laminar body are circumferentially stacked successively; Multiple first support arm, radial direction along described central shaft is arranged on inside described first wheel rim, one end of each described first support arm is connected with the outer wall of described elastic element shell, the other end runs through described first wheel rim, and the extruding radial by being attached to the first belt on described first wheel rim compresses described elastic element group; Multiple second support arm, is positioned at inside described second wheel rim, and one end of each described second support arm is connected with the outer wall of described elastic element shell; Bearing, be sheathed between described second wheel rim and described elastic element shell, the retainer comprising inner ring, outer ring and be located between described inner ring and described outer ring, described second support arm runs through described inner ring and described retainer, described outer ring is connected with described second wheel rim, and described outer ring inwall is provided with multiple draw-in groove to described second support arm location.
There is belt as above to wreck the belt pulley of protective gear, wherein, under the state that described first belt does not wreck, first support arm described in described first belt squeeze, described elastic element shell inside contracts, described elastic element group is radially shunk, and has spacing between described second support arm and described draw-in groove; Under the state that described first belt wrecks, described first support arm stretches out described first wheel rim under the effect of the restoring force of described elastic element group, and described elastic element shell expansion, described second support arm snaps in described draw-in groove.
Have belt as above to wreck the belt pulley of protective gear, wherein, described first wheel rim is circumferentially provided with multiple penetration hole, described first support arm is through described penetration hole and against described first belt.
Have belt as above to wreck the belt pulley of protective gear, wherein, described elastic element group comprises the multiple elastic elements being distributed in described central shaft outer wall, and each described elastic element is arranged along the radial direction of described central shaft.
Have belt as above to wreck the belt pulley of protective gear, wherein, one end of each described elastic element connects described central shaft, and the other end connects the inwall of described elastic element shell.
Have belt as above to wreck the belt pulley of protective gear, wherein, described laminar body are elastic steel sheet.
Have belt as above to wreck the belt pulley of protective gear, wherein, described inner ring and described retainer are equipped with the through hole run through for described second support arm, and the rolling element on described retainer and described through hole have spacing in the axial direction.
There is belt as above to wreck the belt pulley of protective gear, wherein, be all connected by key between described central shaft with described first wheel shaft, between described central shaft with described inner ring and between described outer ring with described second wheel rim.
Of the present utility model have the wreck feature of belt pulley of protective gear and advantage of belt and be:
1, of the present utility model have belt and to wreck the belt pulley of protective gear, it comprises two belt pulleys, ejector and bearing, ejector is located on the central shaft of connection two belt pulleys, and part runs through two belt pulleys vertically, the first support arm is radially provided with inside the wheel rim of the first belt pulley (primary belt pulley), for against the first belt, the second support arm is radially provided with inside the wheel rim of the second belt pulley (belt pulley for subsequent use), for running through inner ring and the elastic support of bearing, and the outer ring of energy clamping bearing, bearing outer ring is connected with the wheel rim of the second belt pulley, after the first belt wrecks, first support arm ejects, second support arm ejects and clamping bearing outer ring thereupon, centre axis is made to move ejector, bearing and the second pulley rotation, the first belt pulley is replaced to make pumping unit continue normal production, prevent pumping unit out of control because belt wrecks, guarantee personnel and device security,
2, of the present utility model have belt and to wreck the belt pulley of protective gear; its elastic element group is coated with elastic element shell; for connecting support arm and brake arm; elastic element shell forms annular wall by multiple laminar body are stacked successively; when the compression of elastic element group or diastole, the girth of elastic element shell can change thereupon.
3, of the present utility model to have the wreck Security of belt pulley of protective gear of belt good, and reliability is high, effectively can reduce the potential safety hazard in pumping production process.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the schematic diagram of ejector in the utility model;
Fig. 2 is the schematic diagram of the utility model middle (center) bearing;
Fig. 3 is the combination schematic diagram of ejector and bearing under belt normal working;
Fig. 4 is that belt wrecks the combination schematic diagram of ejector and bearing under state;
Fig. 5 is the schematic diagram of the first belt pulley;
Fig. 6 is the schematic diagram of the second belt pulley;
Fig. 7 of the present utility modelly has belt and to wreck the plan view of belt pulley working state of protective gear;
Fig. 8 of the present utility modelly has belt and to wreck the plan view of belt pulley working state of protective gear;
Fig. 9 of the present utility modelly has belt and to wreck the left view of belt pulley working state of protective gear.
Primary component label declaration:
1 first belt pulley 11 wheel shaft
12 first wheel rim 121 penetration holes
2 second belt pulley 21 second wheel rims
3 the 3rd belt pulleys
4 the 4th belt pulleys
5 ejector 51 elastic element 52 elastic element shells
53 first support arm 54 second support arms
6 bearings
61 inner ring 611 through holes
62 outer ring 621 draw-in groove 63 rolling elements
7 central shaft 71 first portion 72 second portions
8 motor 9 speed reduceres
10 first belt 20 second belts
Embodiment
In order to there be understanding clearly to technical characteristics of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
As shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 6, the utility model provides a kind of belt pulley, and this belt pulley comprises the first belt pulley 1, second belt pulley 2, ejector 5, bearing 6 and central shaft 7.
Wherein, first belt pulley 1 is primary belt pulley, comprise the first wheel shaft 11 and the first wheel rim 12, second belt pulley 2 is belt pulley for subsequent use, be arranged side by side at axial direction with the first belt pulley 1, the second belt pulley 2 comprises the second wheel rim 21, and central shaft 7 is sheathed in the first wheel shaft 11 also through the second wheel rim 21, this central shaft 7 is the axle driving pulley rotation, is connected with motor.
Ejector 5 comprises elastic element group, elastic element shell 52, multiple first support arm 53 and multiple second support arm 54, wherein, elastic element group is annular, be sheathed on central shaft 7, and be positioned at inside the first wheel rim 12 and the second wheel rim 21, elastic element group is adjacent with the first wheel shaft, the radial direction of axle 7 centered by the telescopic direction of elastic element group, and namely elastic element group can radially be shunk or diastole; Elastic element shell 52 is positioned at inside the first wheel rim and the second wheel rim, elastic element shell 52 is coated on outside elastic element group 51, and formed by multiple laminar body are circumferentially stacked successively, namely elastic element shell 52 with the radial contraction of elastic element group or diastole, and can circumferentially inside contract (undergauge) or expansion (expanding); The radial direction of the first support arm 53 centrally axle 7 is arranged on inside the first wheel rim 12, one end of each first support arm 53 is connected with the outer wall of elastic element shell 52, the other end of each first support arm 53 runs through the first wheel rim 12, and by being attached to the extruding of the first belt 10 on the first wheel rim 12, radial compression elastic element group; Second support arm 54 is positioned at inside the second wheel rim 21, and one end of each second support arm 54 is connected with the outer wall of elastic element shell 52, and the other end of each second support arm 54 points to the second wheel rim 21.First support arm and the second support arm can be cylindrical rod, and bearing of trend is the radial direction of elastic element shell.
Bearing 6 is sheathed between the second wheel rim 21 and elastic element shell 52, comprise inner ring 61, outer ring 62, and the retainer (not shown) be located between inner ring 61 and outer ring 62, inner ring 61 is sheathed on outside elastic element shell 52, second support arm 54 runs through inner ring 61 and retainer, outer ring 62 is connected with the second wheel rim 21, outer ring 62 inwall is provided with multiple draw-in groove 621 of locating the second support arm 54, second support arm 54 can stretch into and be connected in draw-in groove 621, in the utility model, outer ring 62 and the second wheel rim 21 are such as linked together by key, namely bearing 6 is equivalent to the wheel shaft of the second belt pulley 2, central shaft 7 rotates by band dynamic bearing 6, the second belt pulley 2 is driven to rotate.
In a specific embodiment, ejector 5 vertically part runs through the first belt pulley, and part runs through the second belt pulley, specifically, central shaft 7 part be positioned at inside the first wheel rim 12 is first portion 71, the left side (away from the second belt pulley 2) of central shaft 7 first portion is arranged with the first wheel shaft 11, and is connected by key with the first wheel shaft 11, can drive the first pulley rotation to make central shaft, central shaft 7 part be positioned at inside the second wheel rim 21 is second portion 72, elastic element group runs through the right side (near the second belt pulley 2) of first portion and the left side (near the first belt pulley 1) of second portion, be positioned on the elastic element shell 52 on the right side of first portion and be radially connected with the first support arm 53, first support arm 53 runs through the first wheel rim 12, and against the first belt 10 be attached on the first wheel rim 12, be positioned on the elastic element shell 52 on the left of second portion and be radially connected with the second support arm 54, and be arranged with bearing 6 outside the elastic element shell 52 at this place, second support arm 54 runs through the inner ring 61 of bearing, retainer, not sheathed elastic element group on right side (away from the first belt pulley 1) outer wall of central shaft 7 second portion, but linked together by key with the inner ring 61 of bearing.When central shaft 7 rotates, the first belt pulley 1 be connected by key with central shaft 7, bearing inner race 61 (related retainer) are also rotated thereupon, and bearing outer ring 62 and the second wheel rim 21 do not rotate.
As shown in Figure 3, under the state that the first belt 1 does not wreck, first belt pulley 1 drives the first belt 10, the 3rd belt pulley 3 normal rotation, first belt 10 extrudes the first support arm 53, elastic element shell 52 undergauge (circumferentially shrinks, girth diminishes), elastic element group is radially shunk, radially there is spacing between second support arm 54 and draw-in groove 621, the second support arm is hindered to rotate with bearing inner race to prevent draw-in groove, under this state, central shaft drives the first belt pulley, ejector, bearing inner race to rotate, and bearing outer ring does not rotate.
As shown in Figure 4, under the state that the first belt 1 wrecks, first support arm 53 stretches out the first wheel rim 12 under the effect of the restoring force of elastic element group, elastic element shell 52 is expanding (circumferentially to be expanded, girth becomes large), second support arm 54 stretches out thereupon and snaps in draw-in groove 621, thus central shaft, inner ring, retainer, the second support arm, outer ring, the second wheel rim are connected to form an entirety, replace the first belt pulley 1 to rotate, the second belt pulley drive the second belt 20, the 4th belt pulley 4 maintain pumping unit run well.
In the present embodiment, elastic element group comprises the multiple elastic elements 51 being distributed in central shaft 7 outer wall, each elastic element 51 centrally axle 7 radial direction arrange, the radial direction of axle 7 centered by the telescopic direction of i.e. elastic element 51, the circumference of elastic element 51 centrally axle 7 is uniformly distributed, radially, elastic element 51 also can the axis of centrally axle 7 be uniformly distributed.One end of each elastic element 51 is connected to (the i.e. outer right wall of central shaft first portion on the outer wall of central shaft 7, or/and the left side outer wall of central shaft second portion), such as be welded on central shaft outer wall, the other end connects the inwall of elastic element shell 52, such as, be welded on elastic element outer casing inner wall.Wherein, elastic element can be powerful cylindrical spring or shell fragment.
In a preferred technological scheme, the laminar body forming elastic element shell are elastic steel sheet, and be flexible element, the thickness of elastic steel sheet can be arranged as required.
In a feasible technological scheme, first wheel rim 12 is circumferentially provided with multiple penetration hole 121, first support arm 53 is through penetration hole 121 and against the first belt 10, after the first belt 10 wrecks, first support arm 53 stretches out penetration hole, and discharges the compression to elastic element group and elastic element shell 52.
As shown in Figure 2, in a specific embodiment, the inner ring 61 of bearing is provided with the through hole 611 run through for the second support arm 54, on retainer, also correspondence is provided with the through hole run through for the second support arm 54, retainer is provided with rolling element, as the bearing of routine, retainer is provided with two row's rolling elements vertically, often row's rolling element is uniformly distributed along the circumference of retainer, through hole on retainer is between two row's rolling elements, namely rolling element and through hole have spacing in the axial direction, in other words rotational plane and the plane at multiple draw-in groove 621 (or through hole) place of rolling element lay respectively at two parallel, in the plane at interval, interfere with rolling element 63 to avoid the second support arm 54 stretching into through hole, draw-in groove 621 on the inwall of outer ring is oppositely arranged with this through hole, snap in draw-in groove for the second support arm.
As Fig. 7, Fig. 8, shown in Fig. 9, of the present utility model have belt and wreck the belt pulley of protective gear as the transmission device between motor in pumping unit 8 and speed reducer 9, first belt pulley 1 and the 3rd belt pulley (can be conventional pulleys), support the use with the first belt 10, form in-service belt wheel group, second belt pulley 2 and the 4th belt pulley (can be conventional pulleys) and the second belt 20 support the use, form belt wheel group for subsequent use, after the first belt 10 wrecks, first arm of force 53 ejects, the diastole of elastic element group, elastic element shell 52 is expanded (expanding), promoting the second support arm 54 snaps in draw-in groove 621, the inner ring 61 of central shaft 7 with dynamic bearing, retainer, second support arm 54, outer ring 62 is rotated together with the second wheel rim 21, namely the second belt pulley 2 is driven to replace the first belt pulley 1 to remain in operation, maintain pumping unit normally to work.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.And it should be noted that, each constituent element of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristics described in specification of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model covers other relevant with this case inventive point in the nature of things and combines and embody rule.
Claims (8)
1. have belt to wreck the belt pulley of protective gear, it is characterized in that, described belt pulley comprises:
First belt pulley is primary belt pulley, comprises the first wheel shaft and the first wheel rim;
Second belt pulley, be belt pulley for subsequent use, be arranged side by side with described first belt pulley at axial direction, described second belt pulley comprises the second wheel rim;
Central shaft, is sheathed in described first wheel shaft also through described second wheel rim;
Ejector, comprising:
Elastic element group is annular, is sheathed on described central shaft, and is positioned at inside described first wheel rim and described second wheel rim, and the telescopic direction of described elastic element group is the radial direction of described central shaft;
Elastic element shell, is coated on outside described elastic element group, and is formed by multiple laminar body are circumferentially stacked successively;
Multiple first support arm, radial direction along described central shaft is arranged on inside described first wheel rim, one end of each described first support arm is connected with the outer wall of described elastic element shell, the other end runs through described first wheel rim, and the extruding radial by being attached to the first belt on described first wheel rim compresses described elastic element group;
Multiple second support arm, is positioned at inside described second wheel rim, and one end of each described second support arm is connected with the outer wall of described elastic element shell;
Bearing, be sheathed between described second wheel rim and described elastic element shell, the retainer comprising inner ring, outer ring and be located between described inner ring and described outer ring, described second support arm runs through described inner ring and described retainer, described outer ring is connected with described second wheel rim, and described outer ring inwall is provided with multiple draw-in groove to described second support arm location.
2. there is belt as claimed in claim 1 to wreck the belt pulley of protective gear, it is characterized in that, under the state that described first belt does not wreck, first support arm described in described first belt squeeze, described elastic element shell inside contracts, described elastic element group is radially shunk, and has spacing between described second support arm and described draw-in groove;
Under the state that described first belt wrecks, described first support arm stretches out described first wheel rim under the effect of the restoring force of described elastic element group, and described elastic element shell expansion, described second support arm snaps in described draw-in groove.
3. have belt as claimed in claim 1 to wreck the belt pulley of protective gear, it is characterized in that, described first wheel rim is circumferentially provided with multiple penetration hole, described first support arm is through described penetration hole and against described first belt.
4. have belt as claimed in claim 1 to wreck the belt pulley of protective gear, it is characterized in that, described elastic element group comprises the multiple elastic elements being distributed in described central shaft outer wall, and each described elastic element is arranged along the radial direction of described central shaft.
5. have belt as claimed in claim 4 to wreck the belt pulley of protective gear, it is characterized in that, one end of each described elastic element connects described central shaft, and the other end connects the inwall of described elastic element shell.
6. have belt as claimed in claim 1 to wreck the belt pulley of protective gear, it is characterized in that, described laminar body are elastic steel sheet.
7. there is belt as claimed in claim 1 to wreck the belt pulley of protective gear; it is characterized in that; described inner ring and described retainer are equipped with the through hole run through for described second support arm, and the rolling element on described retainer and described through hole have spacing in the axial direction.
8. there is belt as claimed in claim 1 to wreck the belt pulley of protective gear, it is characterized in that, be all connected by key between described central shaft with described first wheel shaft, between described central shaft with described inner ring and between described outer ring with described second wheel rim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733952.XU CN204284374U (en) | 2014-11-28 | 2014-11-28 | There is belt to wreck the belt pulley of protective gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733952.XU CN204284374U (en) | 2014-11-28 | 2014-11-28 | There is belt to wreck the belt pulley of protective gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284374U true CN204284374U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420733952.XU Active CN204284374U (en) | 2014-11-28 | 2014-11-28 | There is belt to wreck the belt pulley of protective gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373552A (en) * | 2014-11-28 | 2015-02-25 | 中国石油天然气股份有限公司 | Belt pulley provided with belt breaking protecting device |
-
2014
- 2014-11-28 CN CN201420733952.XU patent/CN204284374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373552A (en) * | 2014-11-28 | 2015-02-25 | 中国石油天然气股份有限公司 | Belt pulley provided with belt breaking protecting device |
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