CN107917070B - Fixing part for deep well pump and lifting device comprising same - Google Patents

Abstract

The invention discloses a fixing part for a deep-well pump and a lifting device comprising the same, wherein the fixing part for the deep-well pump comprises: the hoisting fixture is provided with a clamping part and a hoisting part, the clamping part is used for clamping a lift pipe of the deep well pump, and the hoisting part is used for being connected with the traction mechanism; the limiting part is arranged on the hoisting clamp and can move back and forth along the hoisting clamp to get close to or far away from the hoisting part so as to close or open the hoisting part. The invention provides a fixing part for a deep-well pump and a lifting device comprising the same, wherein the deep-well pump is integrally lifted away from an underground well, the lifting difficulty is reduced, meanwhile, the deep-well pump is ensured to be tightly connected with a lifting appliance, the deep-well pump is prevented from being unhooked from the lifting appliance in the lifting process, and a safe operation environment is provided for maintainers.

Description

Fixing part for deep well pump and lifting device comprising same

Technical Field

The present invention relates to a fixing member, and more particularly, to a fixing member for a deep well pump and a lifting device including the same.

Background

Deep well pumps are commonly used in underground wells to lift underground water to the surface of the earth, for farmland irrigation and water use for people and animals in mountain areas, or for water lifting projects such as rivers, reservoirs, water channels and the like. When the submersible pump is used, the submersible pump is submerged in water and conveys water through the lift pipe, and the lift can reach 300 meters generally.

Typically, deep well pumps operate in 240m downhole, and the total weight of submersible pump, head pipe and submersible cable is about 12 tons, which increases the total weight substantially if stuck. When maintaining the deep-well pump, hardly transfer the whole deep-well pump from the underground well, need dismantle the deep-well pump for a plurality of sections after hoist one by one, cause very big inconvenience for the maintenance and the dismouting of deep-well pump, seriously influence the work progress of deep-well pump. In addition, in the process of forming the underground well, the phenomenon of weld overflow, undercut and misalignment exists at the butt joint part of the well wall pipes; and the earth's crust movement for many years will cause deformation or relative displacement of the casing. In the process of lifting and placing the lift pipe, the well wall pipe often blocks the flange of the lift pipe, and the blocking of the intermittent type nature forms impact load to the deep well pump, so that the deep well pump is unhooked from a lifting appliance, the safety of maintainers is seriously threatened, and the potential safety hazard of a serious accident exists.

Therefore, there is a need for a fixture for a deep well pump and a lifting device comprising the same to solve the above problems.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a fixing member for a deep-well pump and a lifting device including the same, which can integrally lift the deep-well pump off an underground well, reduce the lifting difficulty, and simultaneously ensure that the deep-well pump is tightly connected with a lifting tool, thereby preventing the deep-well pump from being unhooked from the lifting tool during the lifting process, and providing a safe operation environment for maintenance personnel.

The invention provides a fixing part for a deep well pump based on the above purpose, which comprises:

the hoisting fixture is provided with a clamping part and a hoisting part, the clamping part is used for clamping a lift pipe of the deep well pump, and the hoisting part is used for being connected with the traction mechanism;

the limiting part is arranged on the hoisting clamp and can move back and forth along the hoisting clamp to get close to or far away from the hoisting part so as to close or open the hoisting part.

Preferably, the clamping part comprises two opposite clamping arms which are detachably connected, wherein each clamping arm is provided with a groove, and the grooves are enclosed to form a circumferential groove.

Preferably, a plurality of supporting parts extend out of the two clamping arms respectively, and the supporting parts are uniformly distributed along the periphery of the annular groove.

Preferably, the hoisting part comprises a mounting hole formed in the hoisting fixture and a limiting plate extending out of the hoisting fixture, the traction mechanism penetrates through the mounting hole through a traction rope, and the limiting member can abut against the limiting plate to seal the traction rope in the mounting hole.

Preferably, a guide opening is formed in the hoisting clamp, the mounting hole is communicated with the outside through the guide opening, the width of the guide opening is gradually reduced from far to near to the mounting hole, and the distance between the guide opening and the two opposite ends of the communication position of the mounting hole is not smaller than the diameter of the traction rope.

Preferably, the stopper includes: the limiting rod and the sleeve are arranged on the limiting rod in a sleeved mode, the sleeve is connected to the hoisting clamp, the limiting rod is installed in the hoisting clamp through the sleeve, the sleeve can move in a reciprocating mode to be close to or far away from the limiting plate.

Preferably, the sleeve includes stiff end and the end that stretches out, be provided with on the stiff end and be used for the gag lever post with muffjoint's fixed part, the both ends of gag lever post run through respectively the fixed part and follow stretch out the end and extend to telescopic outside.

In addition, preferably, the stopper further includes: regulating part and elastic component, the regulating part sets up the fixed part with between the stiff end, the regulating part with sleeve swing joint, the elastic component cover is established on the gag lever post, the both ends of elastic component butt respectively be in the regulating part with on the gag lever post.

The present invention also provides a lifting device comprising:

at least one fixing piece for a deep well pump as described above for fixing a head pipe of the deep well pump;

the traction mechanism comprises a traction part and a driving part, the driving part is connected with the fixing part through the traction part, and the driving part drives the traction part to pull the fixing part to move.

Preferably, the fixed parts are distributed at intervals along the extending direction of the head pipe, and the fixed parts are connected with the driving part through the traction part.

From the above, it can be seen that the fixing member for a deep well pump and the lifting device comprising the same provided by the invention have the following advantages compared with the prior art: through installing stone tongs on the lift pipe, draw mechanism and stone tongs are connected and are carried the lift pipe and drive the deep-well pump and remove, make the whole underground shaft that lifts away of deep-well pump, reduce and promote the degree of difficulty. The locating part can be airtight or open the hoist and mount portion of installing drive mechanism, strengthens the hoisting clamp and is connected the compactness with drive mechanism, avoids hanging the in-process, and the deep-well pump is from the unhook on the hoist. The locating part simple structure, convenient operation has improved the security of hoist and mount process, provides safe operation environment for the maintainer.

Drawings

The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic view of a fixture for a deep well pump employed in an embodiment of the present invention.

Fig. 2 is a schematic view illustrating a connection state of the clamping arm and the stopper of the fixing member for a deep well pump shown in fig. 1.

FIG. 3 is an enlarged partial view of the retaining arm and stop of the fixture for a deep well pump shown in FIG. 2.

Fig. 4 is an exploded view of the retainer of the fixing member for a deep-well pump shown in fig. 1.

Wherein the reference numbers:

1: hoisting a clamp; 11: a clamp arm; 12: a groove; 13: a circumferential groove; 14: mounting holes;

15: a support portion; 16: a screw hole; 17: a guide port; 18: a limiting plate; 2: a fastener;

21: a screw; 22: a nut; 3: a limiting member; 31: a fixed part; 32: an adjustment section;

33: a sleeve; 34: an elastic member; 35: a limiting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.

FIG. 1 is a schematic view of a fixture for a deep well pump and a lifting device including the same as utilized in an embodiment of the present invention. Fig. 2 is a side view of the fixture for a deep-well pump and a lifting device comprising the same shown in fig. 1. As shown in fig. 1 and 2, the fixing member for a deep well pump includes: lifting clamp 1 and locating part 3.

The hoisting clamp 1 is provided with a clamping part and a hoisting part, the clamping part is used for clamping a lift pipe of the deep well pump, and the hoisting part is used for being connected with a traction mechanism.

The limiting part 3 is arranged on the hoisting clamp 1 and can move back and forth along the hoisting clamp 1 to be close to or far away from the hoisting part so as to seal or open the hoisting part.

Through clamping part and lift union coupling, drive mechanism is connected with hoist and mount portion, is close to hoist and mount portion through locating part 3, can be airtight to hoist and mount portion to realize deep-well pump and drive mechanism's zonulae occludens. In the hoisting process, the condition that the traction mechanism is separated from the hoisting part is effectively prevented, and the deep-well pump is separated from the traction mechanism. After the hoisting is completed, the movable limiting part 3 is far away from the hoisting part, and the traction mechanism can be separated from the hoisting part. The locating part can be airtight or open the hoist and mount portion of installing drive mechanism, and easy operation has reduced the promotion degree of difficulty of hoist and mount process, has improved the security of hoist and mount process simultaneously, provides safe operation environment for the maintainer.

For realizing convenient dismouting of stone tongs, further improve dismouting speed, preferably, clamping part includes two relative settings and can dismantle the centre gripping arm 11 of connection, all is provided with recess 12 on two centre gripping arms 11, and two recesses 12 enclose to close and form hoop groove 13. The workman that is located the lift pipe both sides can hand a centre gripping arm 11 respectively, sets up in the both sides of lift pipe relatively, arranges the lift pipe in the hoop groove 13, again with two centre gripping arm 11 lock joint to fix the lift pipe.

In this embodiment, the circumferential groove 13 is used for clamping the lift pipe, and the diameter size of the circumferential groove 13 is matched with the diameter of the lift pipe. In order to enhance the connection strength and facilitate the installation and the disassembly, the two clamping arms 11 are further connected through the fasteners 2, and the fasteners 2 are at least two and are distributed on two opposite sides of the annular groove 13 in a mirror symmetry mode. The fastening member 2 includes, but is not limited to, a bolt including a screw 21 and a nut 22, two screw holes 16 are oppositely formed on the clamping arm 11, the screw 21 is mounted on the screw hole 16 and the nut 22 is mounted on the screw after the head pipe is placed in the circumferential groove 13. By tightening the bolts, the two clamp arms 11 are brought close to each other so as to enhance the coupling strength between the lift pipe and the hoist clamp 1.

Through flange joint between the adjacent lift pipe, for strengthening the joint strength between mounting and the lift pipe to draw gear promotes lift pipe and deep-well pump fast, preferably, extends a plurality of supporting parts 15 on two centre gripping arms 11 respectively, and a plurality of supporting parts 15 are along the peripheral evenly distributed of hoop groove 13. The clamping portion is connected to the head pipe relatively below the flange and the support portion 15 provides support for the flange above the clamping arm 11.

In this embodiment, two supporting portions 15 are respectively disposed on the two clamping arms 11, and the two supporting portions 15 are symmetrically distributed on the clamping arms 11, so as to provide a balanced supporting force for the lift pipe, and improve the connection strength between the clamping arms 11 and the lift pipe. The height of the support 15 is equal or approximately equal to the bolt height of the fixed flange, and when the clamping part is clamped on the head pipe, the clamping arm 11 abuts against the flange, while the support 15 abuts against the flange.

Generally, pass through the haulage rope with stone tongs and drive mechanism and be connected, but the haulage rope carries the lifting jig to remove, for further strengthen the zonulae occludens between haulage rope and the stone tongs, avoid stone tongs to break away from the haulage rope, preferably, hoist and mount portion is including setting up mounting hole 14 on stone tongs 1 and the limiting plate 18 that extends from stone tongs 1, and drive mechanism passes through mounting hole 14 through the haulage rope, and limiting part 2 can butt on limiting plate 18, and is airtight in mounting hole 14 with the haulage rope. Keep away from hoist and mount portion with locating part 3, open hoist and mount portion, make the haulage rope get into the mounting hole, be close to hoist and mount portion with locating part 3 again, make locating part 3 butt on limiting plate 18 to it is airtight with hoist and mount portion, the restriction haulage rope breaks away from the mounting hole.

In this embodiment, the mounting hole 14 is an open through hole, and the mounting hole 14 has a smooth curved surface to avoid cutting the pulling rope. A stop plate 18 may be disposed on each of the gripping arms 11, the stop plate 18 being disposed proximate an end of the gripping arm 11.

For the haulage rope of easy to assemble, realize accurate, install rapidly, improve the installation effectiveness, preferably, be provided with guide way 17 on the stone tongs 1, mounting hole 14 passes through guide way 17 and outside intercommunication, and the width of guide way 17 reduces to mounting hole 14 from far to near gradually, and the interval at the relative both ends of guide way 17 and mounting hole 14 intercommunication department is not less than the diameter of haulage rope. When installing the haulage rope, the haulage rope advances into guide port 17, because the width of guide port 17 reduces gradually from far to near to mounting hole 14, so the haulage rope can accurately get into mounting hole 14 under the guiding action of guide port 17, has reduced the installation degree of difficulty, has improved the installation effectiveness of haulage rope.

FIG. 3 is an enlarged partial view of the retaining arm and stop of the fixture for a deep well pump shown in FIG. 2. Fig. 4 is an exploded view of the retainer of the fixing member for a deep-well pump shown in fig. 1. As shown in fig. 3 and 4, the stopper 3 includes: the fixing part 31, the adjusting part 32, the sleeve 33, the elastic piece 34 and the limiting rod 35.

For optimizing the device structure, reduce the operation degree of difficulty, reduce the cost of manufacture, reduce occupation space, preferably, locating part 3 includes: the limiting rod 35 and the sleeve 33 sleeved on the limiting rod 35, the sleeve 33 is connected to the hoisting clamp 1, the limiting rod 35 is installed in the hoisting clamp 1 through the sleeve 33 and can move back and forth along the sleeve 33 to be close to or far away from the limiting plate 18. By moving the limit rod 35 along the sleeve, it is moved closer to or further away from the limit plate 18 in order to close or open the sling.

In this embodiment, the sleeve 33 is welded to the lifting jig 1, the limiting rod 35 extends into the sleeve 33 and is movably connected, for example, threadedly connected, to the sleeve 33, and when the limiting rod 33 is retracted into the sleeve 33 and away from the limiting plate 18, the lifting portion is opened, and at this time, the hauling cable enters the mounting hole 14 through the guide opening 17 or the hauling cable is separated from the mounting hole 14. When the limiting rod 35 extends out of the sleeve 33 and abuts against the limiting plate 18 or the distance between the limiting rod 35 and the limiting plate 18 is smaller than the width of the traction rope, the installation hole 14 is sealed to be a relatively closed structure, and the traction rope cannot be separated from the installation hole 14.

In order to reduce the operation difficulty and further facilitate the detachment of the traction rope, preferably, the sleeve 33 includes a fixed end and an extended end, the fixed end is provided with a fixing portion 31 for connecting the limiting rod 35 and the sleeve, and two ends of the limiting rod 34 respectively penetrate through the fixing portion 31 and extend from the extended end to the outside of the sleeve 33. The limiting rod 35 and the sleeve 33 are in relative positions limited by the fixing part 31, when the traction rope is installed, the fixing part 31 is removed, and the limiting rod 35 can move upwards relative to the sleeve 33 and is far away from the limiting plate 18; after the installation, the limiting rod 35 can move downwards relative to the sleeve 33, and abuts against the limiting plate 18, and the fixing part 31 is installed to fix the relative positions of the limiting rod 35 and the sleeve 33.

In this embodiment, the fixing portion 31 includes a fixing base and a mounting rod extending from the fixing base, and a through channel for fixedly connecting with the limiting rod is provided on the fixing base and the mounting rod. The fixed base is welded to the sleeve 33.

For further improving the simple operation nature, improve spacing effect simultaneously, in addition, preferably, the locating part still includes: the adjusting portion 32 is arranged between the fixing portion 31 and the fixed end of the sleeve 33, the adjusting portion 32 is movably connected with the sleeve 33, the elastic piece 34 is sleeved on the limiting rod 35, and two ends of the elastic piece 35 abut against the adjusting portion 32 and the limiting rod 35 respectively. The elastic piece 34 is sleeved on the limiting rod 35, the adjusting portion 32 applies pressure to the elastic piece 34, the elastic piece 34 provides downward pressure for the limiting rod 35, the traction rope cannot push the limiting rod 35, and even if a small gap exists between the limiting rod 35 and the limiting plate 18 or the traction rope is subjected to large impact load, the traction rope can be prevented from being separated from the mounting hole.

In this embodiment, the limiting rod 35 includes a first section, an intermediate section and a second section, the first section is connected with the fixing portion 31, the second section is used for abutting on the limiting plate 18, and the limiting rod 35 is a stepped rod body and is increased from the first section and the intermediate section at intervals. The elastic member 34 includes, but is not limited to, a spring or a leaf spring, and the elastic member 34 may be a spring, and the spring is sleeved on the limiting rod 35, and if the spring is sleeved on the middle section, the spring can abut against the second section, and applies a downward force to the second section.

The fixed end of the sleeve 33 is provided with an annular groove, the adjusting part 32 is arranged in the annular groove and is in threaded connection with the annular groove, and the adjusting part 32 can be screwed in or out in the annular groove.

The adjusting part 32 comprises a base and a connecting rod extending from the base, threads are arranged on the outer wall surface of the connecting rod and are in threaded connection with the inner wall surface of the annular groove, a through channel is formed in the base and the connecting rod, the first end of the limiting rod 35 passes through the through channel, and a limiting part used for abutting against a spring is arranged at the joint of the base and the connecting rod. The fixed base of the fixed portion 31 is welded to the upper surface of the base of the adjustment portion 32, and the lower surface of the base can abut against the fixed end of the sleeve 33.

The elastic force of the elastic piece 34 can be continuously applied to the limiting rod 35, and the working efficiency of the limiting rod 35 is guaranteed. The elasticity of elastic component 34 can be adjusted by regulating part 32 and sleeve 33 according to actual need, when guaranteeing haulage rope installation fastness, guarantees that the user is convenient, quick when taking the haulage rope. In addition, the adjusting part 32 and the fixing part 31 can facilitate the user to overhaul or replace the limiting part at any time.

The installation and use of the fixture for a deep well pump is described further below.

The installation process comprises the following steps: the two limiting pieces 3 are arranged between the two clamping arms 11 and are respectively welded and fixed with the two clamping arms 11, the two clamping arms 11 are oppositely arranged on two sides of the lift pipe, and the lift pipe is arranged in the groove 12; adjusting the position of the clamping arm 11 along the length of the lift pipe to enable the supporting part 15 to abut against a flange above the lift pipe; a screw 21 is installed in the screw hole 16, and the nut is tightened to clamp the head pipe in the circumferential groove 13.

The using process comprises the following steps: the movable fixing part 31 drives the limiting rod 35 to move upwards along the sleeve 33, so that the limiting rod 35 is far away from the limiting plate 18, and the traction rope enters the mounting hole 15 through the guide port 17; the fixing portion 31 is moved backward to drive the limiting rod 35 to move downward along the sleeve 33, so that the limiting rod 35 approaches or abuts against the limiting plate 18, and meanwhile, the adjusting portion 32 is continuously screwed into the sleeve 33 to provide downward pressure for the elastic member 34, and the elastic member 34 pushes the limiting rod 35 to approach or abut against the limiting plate, so as to prevent the traction rope from separating from the lifting clamp 1.

The present invention also provides a lifting device comprising: a fixing piece and a traction mechanism.

At least one fixing piece for a deep well pump as described above, the fixing piece being used for fixing a head pipe of the deep well pump;

the traction mechanism comprises a traction part and a driving part, the driving part is connected with the fixing piece through the traction part, and the driving part drives the traction part to pull the fixing piece to move.

Install the mounting on the lift pipe of deep well pump, drive division is connected with the mounting through traction portion, and drive division drive traction portion removes, and traction portion drives the mounting and removes, and the mounting comes the pulling deep well pump moving as a whole through driving the lift pipe. The lifting device is used for lifting the whole deep-well pump away from the underground well, so that the lifting difficulty is reduced, the deep-well pump is simultaneously ensured to be tightly connected with the lifting appliance, the deep-well pump is prevented from being unhooked from the lifting appliance in the lifting process, and a safe operation environment is provided for maintenance personnel.

In this embodiment, the traction unit is a traction rope, and the driving unit is a motor or other mechanism for driving.

For avoiding the mounting overload to use, have better shock resistance load capacity, realize promoting fast, preferably, the mounting is a plurality of, and a plurality of mountings are all connected with the drive division through traction portion along the extending direction interval distribution of lift pipe. Traction mechanism accessible mounting is with traction force along lift pipe evenly distributed, reduces the influence of card resistance.

From the above description and practice, it can be seen that the present invention provides a fixing for a deep-well pump and a lifting device comprising the same, which have the following advantages compared to the prior art: through installing stone tongs on the lift pipe, draw mechanism and stone tongs are connected and are carried the lift pipe and drive the deep-well pump and remove, make the whole underground shaft that lifts away of deep-well pump, reduce and promote the degree of difficulty. The locating part can be airtight or open the hoist and mount portion of installing drive mechanism, strengthens the hoisting clamp and is connected the compactness with drive mechanism, avoids hanging the in-process, and the deep-well pump is from the unhook on the hoist. The locating part simple structure, convenient operation has improved the security of hoist and mount process, provides safe operation environment for the maintainer.

Those of ordinary skill in the art will understand that: the above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit of the present invention should be included in the scope of the present invention.

Claims (5)

1. A fixture for a deep well pump, comprising:

the hoisting fixture is provided with a clamping part and a hoisting part, the clamping part is used for clamping a lift pipe of the deep well pump, and the hoisting part is used for being connected with the traction mechanism; the hoisting part comprises a mounting hole arranged on the hoisting clamp and a limiting plate extending out of the hoisting clamp, the traction mechanism penetrates through the mounting hole through a traction rope, and the limiting plate can abut against the limiting plate to seal the traction rope in the mounting hole; the hoisting clamp is provided with a guide port, the mounting hole is communicated with the outside through the guide port, the width of the guide port is gradually reduced from far to near to the mounting hole, and the distance between the guide port and the two opposite ends of the communication part of the mounting hole is not smaller than the diameter of the traction rope;

the limiting piece is arranged on the hoisting clamp and can move back and forth along the hoisting clamp to be close to or far away from the hoisting part so as to close or open the hoisting part; the stopper includes: the limiting rod is mounted in the hoisting clamp through the sleeve and can reciprocate along the sleeve to be close to or far away from the limiting plate so as to close or open the hoisting part; the sleeve comprises a fixed end and an extending end, a fixed part used for connecting the limiting rod and the sleeve is arranged on the fixed end, and two ends of the limiting rod respectively penetrate through the fixed part and extend to the outside of the sleeve from the extending end; when the limiting rod is retracted into the sleeve and is far away from the limiting plate, the hoisting part is opened, and at the moment, the traction rope enters the mounting hole through the guide port or is separated from the mounting hole; when the limiting rod extends out of the sleeve and abuts against the limiting plate or the distance between the limiting rod and the limiting plate is smaller than the width of the traction rope, the mounting hole is sealed to be a relatively closed structure, and the traction rope cannot be separated from the mounting hole;

the stopper further includes: the adjusting part is arranged between the fixing part and the fixing end, the adjusting part is movably connected with the sleeve, the elastic piece is sleeved on the limiting rod, and two ends of the elastic piece are respectively abutted against the adjusting part and the limiting rod; the limiting rod comprises a first section, a middle section and a second section, the first section is connected with the fixing part, the second section is used for abutting against the limiting plate, the limiting rod is a step-shaped rod body, and the interval from the first section, the middle section to the second section is increased; wherein, the telescopic be provided with annular groove on the fixed end, regulating part set up in annular groove, and with annular groove threaded connection, regulating part can be in the annular groove in the screw in or screw out.

2. The fixture for a deep-well pump according to claim 1,

the clamping part comprises two opposite clamping arms which are detachably connected, and grooves are formed in the clamping arms and are surrounded to form circumferential grooves.

3. A fixture for a deep-well pump according to claim 2,

a plurality of supporting parts extend from the two clamping arms respectively, and the supporting parts are uniformly distributed along the periphery of the annular groove.

4. A lifting device, comprising:

at least one fixture for a deep well pump according to any of claims 1 to 3 for fixing a head pipe of the deep well pump;

the traction mechanism comprises a traction part and a driving part, the driving part is connected with the fixing part through the traction part, and the driving part drives the traction part to pull the fixing part to move.

5. A lifting device as claimed in claim 4,

the mounting is a plurality of, and is a plurality of the mounting is along the extending direction interval distribution of lift pipe, and is a plurality of the mounting all passes through traction portion with the drive division is connected.

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