CN206702914U - A kind of expansion joint dismantling device - Google Patents
A kind of expansion joint dismantling device Download PDFInfo
- Publication number
- CN206702914U CN206702914U CN201720378707.5U CN201720378707U CN206702914U CN 206702914 U CN206702914 U CN 206702914U CN 201720378707 U CN201720378707 U CN 201720378707U CN 206702914 U CN206702914 U CN 206702914U
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- Prior art keywords
- expansion joint
- clamping plate
- dismantling device
- flange
- holder
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- 239000000725 suspension Substances 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 35
- 238000001816 cooling Methods 0.000 description 25
- 238000007789 sealing Methods 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
It the utility model is related to dismounting field, disclose a kind of expansion joint dismantling device, the dismantling device includes holder and force-applying piece, the holder has the jaws for the end face edge part that can clamp expansion joint axial direction both ends, and the force-applying piece is connected to the holder and the holder can applied for so that the power that the jaws is magnified or reduced.Dismantling device small volume provided by the utility model, it is easy to carry, it is easy to use, can meets that the expansion joint maintenance of small space requires, and prevent from damaging the expansion joint dismantling device of expansion joint both ends pad.
Description
Technical field
A kind of dismantling device is the utility model is related to, in particular it relates to a kind of expansion joint dismantling device.
Background technology
Indirect dry cooling tower (hereinafter referred to as indirect cool tower) is because equipment is few, is widely used in water shortage area power plant simple system
Circulating water cooling system, indirect cool tower can typically include vertical section in hyp tower body and be arranged in the one of tower body bottom periphery
Radiator is enclosed, tower body is used to support radiator and plays a part of aspirating air, and radiator can be divided into several cooling sectors, each
Cooling sector is made up of a number of cooling triangle again, and cooling triangle has water inlet and water return outlet, water inlet and water return outlet
Respectively by expansion joint, such as expansion bellow, connected with the circulating water pipeline of outside, can be to recirculated water so as to cool down triangle
Cooled down.
Sealing for sealing is installed between expansion joint and cooling triangle and between expansion joint and circulating water pipeline
Pad, because the radiator of indirect cool tower in power plant typically makes of aluminum material, in order to prevent radiator galvano-cautery, expansion joint two
The sealing gasket at end typically uses rubber blanket, because indirect cool tower running temperature is higher (reaching as high as more than 55 DEG C), cooling triangle water inlet
The sealing gasket aging of the expansion joint at expansion joint and water return outlet at mouthful is rapider.In order to ensure unit safety operation, need to just determine
The sealing gasket of expansion joint between phase pair at the expansion joint and water return outlet of the water inlet of cold but triangle is changed.
Due to expansion joint quantity it is more (for example, the separate unit indirect cool tower of Shen Dong Utilities Electric Co.s of Shenhua include six cooling sectors,
122 cooling triangles altogether, total to use DN200, PN0.6MPa expansion joint 488), and take big portion in equipment installation
The expansion joint divided is tightened up pull bar and cut off, and it is larger that this has resulted in expansion joint replacing sealing gasket task difficulty of construction.With
Toward construction in commonly using double crowbars expansion joint is compressed and taken out, on the one hand, double crowbar space-consuming volumes are big, difficult
To be operated at the narrow and small position of construction area, speed of application is slow, is also easy to that expansion joint is caused to damage, on the other hand,
When installing new sealing gasket, double crowbars directly contact sealing gasket, easily cause sealing gasket and roll damage.
Utility model content
The purpose of this utility model is to provide a kind of small volume, easy to carry, is easy to use, can meet the swollen of small space
Swollen section maintenance requires, and prevents from damaging the expansion joint dismantling device of expansion joint both ends pad.
To achieve these goals, the utility model provides a kind of expansion joint dismantling device, and the dismantling device includes folder
Gripping member and force-applying piece, the holder have the jaws for the end face edge part that can clamp expansion joint axial direction both ends, institute
Force-applying piece is stated to be connected to the holder and the holder can be applied for so that the power that the jaws is magnified or reduced.
Preferably, the holder includes the support of spaced apart relative clamping plate and support between the clamping blocks
Part, the interval between the clamping plate form the jaws, and each clamping plate is hinged with the support member, with can be relative to that
This rotates and magnifies or reduce the jaws.
Preferably, the homonymy relative position of the relative clamping plate is respectively kept with opening, the clamping plate portion of the opening both sides
The through hole of coaxial line is respectively equipped with point；The both ends end of the support member has the size adaptable with the opening, and
Provided with the hole to match with the through hole, can be contained in the opening so as to the end of the support member, and by through
The bearing pin of the hole and the through hole is hinged with the corresponding clamping plate.
Preferably, the force-applying piece includes the stud being separately mounted on the relative clamping plate and is connected to described
Stud between hollow inner thread piece, the stud is threaded in the both ends end sections of the hollow inner thread piece respectively
It is interior；The relative stud it is externally threaded oppositely oriented, so as to the hollow inner thread piece when rotated, the position of the stud
Diminish greatly or simultaneously with time-varying in the length in the hollow inner thread piece.
Preferably, one in the stud is the T-shaped screw rod of positive screw thread, and another is the T-shaped screw rod of anti-screw thread, the positive silk
Detaining T-shaped screw rod and the T-shaped screw rod of anti-screw thread includes snap portions connected vertically and screw portion；The relative clamping plate
On be respectively equipped with groove and the mounting hole longitudinally through the clamping plate in the groove；The snap portions card is set
In in the groove, and the screw portion runs through the mounting hole.
Preferably, the hollow inner thread piece is positive and negative silk swivel nut, one end of the positive and negative silk swivel nut and the T-shaped spiral shell of positive screw thread
The screw portion threaded connection of bar, the other end are threadedly coupled with the screw portion of the anti-T-shaped screw rod of screw thread.
Preferably, the force-applying piece also includes being used to prevent the locking that the cannulated threaded part rotates when being rotated in place
Part.
Preferably, the locking member is locking nut, and the locking nut being capable of screw rod 1 T-shaped with positive screw thread and/or anti-silk
T-shaped screw flight connection is detained, when being in contact so as to the locking nut with the hollow inner thread piece, the locking nut can
The hollow inner thread piece is prevented to rotate.
Preferably, a clamping plate in the relative clamping plate is provided with suspension part in the opposite side relative with its side that is open
Position, when the expansion joint is connected by the flange of its end and the flange of outer sleeve, the suspension part potential energy is enough contained in
Between the flange of the flange of the expansion joint and the outer sleeve.
Technical scheme provided by the utility model has the advantages that：
Expansion joint dismantling device provided by the utility model includes holder and force-applying piece, and holder is swollen with that can clamp
For swollen nodal axisn to the jaws of the end face edge part at both ends, the force-applying piece connects the holder, and holder can be applied
For the power for magnifying jaws or reducing.Because the expansion joint dismantling device only needs to be clamped in the expansion joint axial direction two
End, you can meet the dismounting demand of the expansion joint, therefore, the dismantling device small volume, be easy to carry, it is easy to use,
It disclosure satisfy that the requirement changed in narrow space to the sealing gasket at the expansion joint both ends.
Further, since the holder can clamp the end face edge part at expansion joint axial direction both ends, it is therefore, described
Dismantling device can avoid being in contact with the gasket seal on the inside of the expansion joint end face, and then can avoid installing new pad
When, roll and damage pad.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation for the type metal expansion joint in tightening state that the utility model embodiment provides；
Fig. 2 is the structural representation in dismounting, the type metal expansion joint of installment state that the utility model embodiment provides；
Fig. 3 is the partial enlarged drawing at the suspension position of bottom clamping plate in Fig. 2；
Fig. 4 is the top view of top clamp plate in Fig. 2；
Fig. 5 is the front view of stud in Fig. 2；
Fig. 6 is the side view of stud in Fig. 2.
Description of reference numerals
The T-shaped screw rod of the positive screw threads of 1-；2- clamping plates；3- bearing pins；4- locking members；The hollow inner thread pieces of 5-；6- support members；The anti-silks of 7-
Detain T-shaped screw rod；8- clamping plates；9- bearing pins；10- flanges；11- extensible members；12- flanges；13- hangs position；14- flanges；15- spiral shells
Bolt；16- two halves formula flanges；17- cools down triangle water inlet；18- grooves；19- mounting holes；20- through holes；21- through holes；22- is open；
23- snap portions；24- screw portions.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of expansion joint dismantling device, the dismantling device includes clamping
Part and force-applying piece, the holder has the jaws for the end face edge part that can clamp expansion joint axial direction both ends, described
Force-applying piece is connected to the holder and the holder can applied for so that the power that the jaws is magnified or reduced.
Because the dismantling device is by being clamped in the holder at the expansion joint both ends, and the force of connection holder
Part completes the replacing of sealing gasket, as long as holder can clamp the replacing requirement that expansion joint can meets sealing gasket, therefore,
The dismantling device volume that the utility model embodiment provides is smaller, is easy to carry, easy to use, can meet in narrow space
The requirement that the interior sealing gasket to the expansion joint both ends is changed.
Also, because the holder can clamp the end face edge part of the flange 14 and the flange 10, therefore,
The dismantling device can avoid being in contact with the gasket seal on the inside of the expansion joint end face, and then can avoid installing new pad
During piece, roll and damage pad.
Wherein, the structure of the holder can have a variety of, and a kind of preferred structure of the holder is given below, when
So, the structure of the holder is not limited to this.
Please continue to refer to Fig. 1, the holder includes spaced apart relative clamping plate 2 and clamping plate 8 and is supported on described
Support member 6 between clamping plate 2 and clamping plate 8, the interval between the clamping plate 2 and clamping plate 8 form the jaws, each clamping plate
2 and clamping plate 8 and the support member 6 it is be hinged, with can be pivotably movable with respect each other and magnify or reduce the jaws.Need what is illustrated
It is, if the clamping plate 2 and clamping plate 8 can form the jaws for the end face edge part that can clamp expansion joint axial direction both ends, and can phase
For rotating each other, therefore, the connected mode between the clamping plate 2 and clamping plate 8 is not limited to above-mentioned connected mode, also
Other common hinge modes can be used, for example, the clamping plate 2 and clamping plate 8 can also directly by hinge, without with institute
It is be hinged to state support member 6.The be hinged another effect of the clamping plate 2 and clamping plate 8 is, when the force-applying piece exerts a force to the holder
When, the jaws of the holder can clamp the expansion joint and shrink, during so as to avoid force-applying piece from exerting a force, the clamping plate with
The contact site of the clamping plate and the expansion joint is fulcrum, and is rotated around the fulcrum.
Specifically, when the clamping plate 2 and clamping plate 8 are hinged with support member 6, the clamping plate 2 and clamping plate 8 are in the following way
It is be hinged with the support member 6：Fig. 1 and Fig. 4 are referred to, the homonymy relative position of the relative clamping plate 2 and clamping plate 8 is respectively kept with
Opening 22, referring to Fig. 4, being respectively equipped with the through hole 20,21 of coaxial line on the clamping plate part of 22 both sides of the opening；Refer to figure
1, the both ends end of the support member 6 has the size adaptable with the opening 22, and is provided with and the phase of through hole 20,21
The hole of matching, so as to which the end of the support member 6 can be contained in the opening 22, and by through the hole and described logical
The bearing pin 3,9 in hole 20,21 is hinged with the corresponding clamping plate.
When it is implemented, the support member can select such as support bar, it is described in order to improve the support strength of support member
Support member can select metallic support rod, such as stainless steel support bar.When installing the support member 6, by the two of the support member 6
End is respectively accommodated in the opening 22 of the clamping plate 2 and neutralized in the opening 22 of the clamping plate 8, make the hole of the end of support member 6 with
Through-bore axis alignment on the clamping plate part of 22 both sides of the opening, then pass through the pin through the through hole 20,21 and the hole
Axle is be hinged by the support member 6 and the clamping plate 2 and clamping plate 8.It is described in order to reduce the abrasion of dismantling device when in use
The friction part of bearing pin can smear moderate lubrication fat such as 3# universal lithium bases fat.
It should be noted that the articulated position of the support member 6 and the clamping plate 2 and clamping plate 8 is not limited to above-mentioned institute
The end of support member 6 is stated, can also be the optional position of the length direction of support member 6, as long as the support member 6 can be described in
Opening, and can be hinged by bearing pin and the clamping plate 2 and clamping plate 8.Certainly, the both ends of support member 6 are set to be contained in institute
State in clamping plate 6, the length of the support member 6 can be made minimum, so as to help to reduce the volume of dismantling device.
It should be further stated that the opening 22 is not limited to be provided only on the side of above-mentioned clamping plate 2 and clamping plate 8
Portion, the other positions of the clamping plate can also be arranged on, for example, can be by the opening 22 located at the clamping plate 2 and clamping plate 8
Middle part, as long as the opening on the clamping plate 6,8 is relative, and the support member 6 can be made to pass through or accommodate the two of the support member 6
Hold end.Certainly, in order to reduce the volume of the dismantling device as much as possible, it is preferred that the clamping plate 2 and clamping plate 8
Homonymy relative position sets the opening 22.
In the dismantling device, the structure of the force-applying piece can have it is a variety of, in order to reduce the volume of the dismantling device,
The structural compactness of dismantling device is improved, a kind of preferred structure of the force-applying piece, certainly, the knot of the force-applying piece is given below
Structure is not limited to this.
Referring to Fig. 1, the force-applying piece includes the stud being separately mounted on the relative clamping plate and is connected to institute
Hollow inner thread piece 5 between the stud stated, the stud are threaded in the both ends end of the hollow inner thread piece 5 respectively
In part；The relative stud it is externally threaded oppositely oriented, so as to the hollow inner thread piece 5 when rotated, the spiral shell
The length in the hollow inner thread piece 5 of post diminishes greatly or simultaneously with time-varying.Because the hollow inner thread piece 5 is revolving
When turning, the length in the hollow inner thread piece 5 of the stud diminishes greatly or simultaneously with time-varying, therefore, the force
Part can be by changing the direction of rotation of hollow inner thread piece 5, and causes the stud to drive the clamping plate 2 and the institute of jaws both sides
State the move toward one another of clamping plate 8, or opposite motion, when the clamping plate 2 of jaws both sides and 8 move toward one another of clamping plate, the jaws
Reduce, when the clamping plate 2 and clamping plate 8 of jaws both sides move opposite to each other, the jaws increase.
Specifically, referring to Fig. 1, one in the stud is the T-shaped screw rod 1 of positive screw thread, another is the T-shaped spiral shell of anti-screw thread
Bar 7, refers to Fig. 5 and Fig. 6, and the positive T-shaped screw rod 1 of screw thread and the T-shaped screw rod 7 of the anti-screw thread include engaging connected vertically
Part 23 and screw portion 24；Referring to Fig. 4, being respectively equipped with groove 18 on the relative clamping plate and positioned at the groove
The mounting hole 19 longitudinally through the clamping plate in 18；Referring to Fig. 1, the snap portions 23 are arranged in the groove 18,
And the screw portion 24 runs through the mounting hole 19.Specifically, the snap portions 23 can be cylinder, the groove
18 cross section can be the circular arc being adapted with the snap portions 23, because the stud has snap portions 23, institute
Stating clamping plate has groove 18, and therefore, the stud can be arranged in the groove 18 of the clamping plate by its snap portions 23,
So as to strengthen the structural compactness of the dismantling device, and it can effectively prevent the hollow inner thread piece 5 when rotated,
The stud slides relative to the clamping plate.
Further, in order to match with the said structure of the stud, and the spiral shell at the both ends of hollow inner thread piece 5 is realized
Length of the post in the hollow inner thread piece 5 greatly or diminishes with time-varying, and the hollow inner thread piece 5 for example can be positive and negative silk
Swivel nut, the screw portion 24 of one end screw rod 1 T-shaped with positive screw thread of the positive and negative silk swivel nut are threadedly coupled, the other end with it is described anti-
The screw portion 24 of the T-shaped screw rod 7 of screw thread is threadedly coupled.Specifically, the internal thread of the positive and negative silk swivel nut be divided into it is oppositely oriented
Two threaded portions, so that the stud that the positive and negative silk swivel nut can be oppositely oriented with the external screw thread at its both ends is threadedly coupled, and
When realizing positive and negative silk swivel nut rotation, both ends stud is located at the same time-varying of length in the hollow both ends end sections of inner thread piece 5
Purpose that is big or diminishing.
When it is implemented, in order to preferably apply the power for rotating it, the positive and negative silk swivel nut to the positive and negative silk swivel nut
For example positive and negative screw thread hexagonal long nut can be selected.In addition, in order to reduce the abrasion of dismantling device when in use, the positive screw thread
The friction part of T-shaped screw rod 1 and the T-shaped screw rod 7 of the anti-screw thread can smear appropriate lubricating grease such as 3# universal lithium bases fat.
It is pointed out that because the opening 22 of the clamping plate 2 and clamping plate 8 is not limited to be located at the clamping plate side in Fig. 4
The opening in portion, opening 22 may be located on other positions of the clamping plate, such as the middle part of the clamping plate, therefore, the force
Part is also not limited to be located at the left side of support member 6 among Fig. 1；When the opening 22 is positioned at such as middle part of the clamping plate
When, the force-applying piece can be located at the left side (as shown in Figure 1) of the support member 6, or the right side of the support member 6.
Certainly, when the force-applying piece is located at the left side of the support member 6, the hollow inner thread piece 5 can by rotating forward so that
The mode that length of the stud at its both ends inside it diminishes simultaneously, and the holder is clamped the expansion joint compression；When
When the force-applying piece is located at the right side of the support member 6, the hollow inner thread piece 5 can be by reversely rotating, so that its both ends
Length of the stud inside it with the big mode of time-varying, and the holder is clamped the expansion joint compression.Certainly, in order to
Reduce the volume of the holder as much as possible, it is preferred that as shown in Figure 1 and Figure 4, the opening of the clamping plate is typically located at described
The side of clamping plate, as shown in figure 1, the force-applying piece is located at the left side of the support member 6.
Further, referring to Fig. 1, in order to prevent the dismantling device after compression-expansion section can freely take out to it,
Dismantling device loosens, dislocation, and the force-applying piece also includes being used to prevent the lock that the cannulated threaded part 5 rotates when being rotated in place
Tight part 4.
Specifically, referring to Fig. 1, the locking member 4 can be locking nut, the locking nut can be with positive screw thread T
Type screw rod 1 and/or the T-shaped screw rod 7 of anti-screw thread are threadedly coupled, so as to which the locking nut is in contact with the hollow inner thread piece 5
When, the locking nut can prevent the hollow inner thread piece 5 from rotating.Specifically, the dismantling device is before the use, pine
The locking member 4 is driven, is located at the top of the T-shaped screw rod 1 of the positive screw thread, the expansion is clamped using the dismantling device
When section extremely can freely take out state, the locking member 4 is tightened so that the lower surface of the locking member 4 and the hollow internal thread
The upper surface of part 5 is in contact, and so as to which locking member 4 can prevent the hollow inner thread piece 5 from rotating, prevents in compressive state
Expansion joint elastic force under, the dismantling device loosens, dislocation.
For the ease of processing, the dismantling device can use No. Q235 or No. 45 steel making, in order to ensure the dismounting
The intensity of instrument, the clamping plate 2 and clamping plate 8 typically have certain thickness, such as 3cm-6cm.However, generally, it is cold
But expansion joint one end between triangle and recirculated water sleeve pipe is connected by flange with the flange of recirculated water sleeve pipe, and the other end passes through method
Blue water inlet or water return outlet with cooling down triangle is connected；When the expansion joint passes through its end flange and the flange of recirculated water sleeve pipe
Be connected, gap is smaller between the flange of expansion joint and the flange of recirculated water sleeve pipe, only 5.5-6.5mm, so in order that
The jaws of the dismantling device can smoothly clamp the end face edge part of the holder in installment state, refer to Fig. 1 and
Fig. 3, the clamping plate 8 is provided with suspension position 13 in the opposite side relative with its 22 side that are open, when the expansion joint passes through its end
When the flange 10 in portion is connected with the flange 12 of outer sleeve, the suspension position 13 can be contained in the flange 10 of the expansion joint
Between the flange 12 of the outer sleeve.It is pointed out that the method for the flange and recirculated water sleeve pipe due to the expansion joint
Gap is smaller between orchid, only 5.5-6.5mm, therefore, limits the thickness at the suspension position, generally, in order to
Ensure the intensity at suspension position, so that dismantling device is smoothed out expansion joint dismounting work, the suspension position can be done at quenching
Reason.In order to which the suspension position is more caught between the flange 10 and the flange 12, when the dismantling device is installed,
Hammering can be used in the one end of the clamping plate 8 away from expansion joint.
Further, when being compressed using the dismantling device to expansion joint, in order that the dismantling device is to described
The force of expansion joint is more uniform, and the dismantling device can be arranged symmetrically in the both sides of the expansion joint, is carrying out expansion joint
Squeeze operation when, the hollow inner thread piece 5 of the dismantling device of expansion joint both sides can be fastened simultaneously, so as to prevent that expansion joint is unilateral
Deformation suffers damage.
Further, in order to more uniformly be exerted a force to the expansion joint, the clamping plate 2 and the clamping plate can also be made
8 sides being in contact with the end face of the expansion joint are generally arcuate in being adapted with the expansion joint end face edge, so that
Obtaining the clamping plate and the expansion joint has bigger contact area, and so, there is the dismantling device bigger expansion joint to apply
Power area, so as to which preferably extrusion expansion section compresses.
Further, in order to prevent the dismantling device, when being compressed to the expansion joint, the clamping plate 2 is relatively described
Expansion joint is shifted over, and the clamping plate 2 leaves upwards in the medial surface marginal portion of the opposite side relative with its 22 side that are open
The step of depression, when being in contact so as to the jaws with the end face edge part of the expansion joint, the end surface side of the expansion joint
Edge can be contained in the step, and with the clamping plate 2 against when preventing that the dismantling device from exerting a force, the clamping plate 2 occurs
Displacement.
With reference to the structure of the expansion joint and the specific installation environment of the expansion joint, the expansion joint is dismounted
The dismounting principle of instrument illustrates.
Referring to Fig. 2, the expansion joint includes extensible member 11 and is coaxially mounted to the flange 10 at the extensible member both ends,
14.Specifically, the extensible member 11 can be such as metal bellows, the metal bellows can be stretched along its axis direction
Contracting, so as to which the expansion joint can compensate the additional stress caused by temperature difference and mechanical oscillation.The metal bellows both ends
It is coaxially installed with flange 10 respectively, 14, such as metal flange, so as to which the expansion joint can pass through the flange 10,14 at its both ends
Connected with the sleeve pipe of outside.
Please continue to refer to Fig. 2, the cooling triangle of indirect cool tower is connected by expansion joint with circulating water pipeline in power plant；That is, Fig. 2
In, the flange 14 of the expansion joint upper end connects with cooling down the water inlet 17 of triangle, flange 10 and the recirculated water of its lower end
The flange 12 of pipe end connects.
Specifically, water inlet 17 of the flange 14 of the expansion joint upper end in the following way with the cooling triangle connects
It is logical：It is described cooling triangle water inlet periphery be provided with perpendicular to the water inlet axis direction and outwardly convex it is convex
Edge, such as annular flange.The external diameter of the annular flange is less than the external diameter of the expansion joint end flange 14, the annulus
The internal diameter of shape flange can be equal to the internal diameter of the expansion joint end flange 14.When the expansion joint is connected with cooling triangle,
Sealing gasket is installed between the annular flange and the flange 14.For the ease of cooling down triangle and the expansion joint by described
Connection, two halves formula flange (a flange cutting in half, spell use) can be used to be trapped among entering for the cooling triangle
Mouth of a river periphery, specifically, making the inner side of the two halves formula flange and the outer wall of water inlet cooling triangle fit, and make institute
The lower surface and the upper surface of the annular flange for stating two halves formula flange fit.Through hole is left on the two halves formula flange,
Through hole on the flange 14 of the through hole and expansion joint is axially aligned, so as to which the cooling triangle can be by through the two halves formula
The bolt 15 of through hole on flange and the through hole on the flange 14 and attaching nut and fixed with the expansion joint.
Please continue to refer to Fig. 2, the flange 10 of the expansion joint lower end connects with the circulating water pipeline in the following way：
The circulating water pipeline end comes with flange 12, when installing expansion joint, makes the through hole on the flange 12 and the flange 10
On through hole axially align, sealing gasket is set between the flange 10 and the flange 12, also, avoid the sealing gasket from hiding
The through hole kept off on the flange 10 and the flange 12.Use through hole and the flange 10 of the bolt 13 on the flange 12
On through hole, reuse nut and tightened with the bolt, so that the flange 12 and the flange 10 be fixed.
Please continue to refer to Fig. 2, using the dismantling device to installed in the circulating water pipeline and the cooling triangle it
Between the sealing gasket at expansion joint both ends when being changed, first, unclamp the screw bolt and nut at the expansion joint both ends, and
Remove the two halves formula flange of the cooling triangle water inlet so that the expansion joint is in Free Compression state.Refer to figure
1, when the expansion joint is in Free Compression state, there is gap between the flange 10 and the flange 12；And the method
Blocked without any the outer face marginal portion of orchid 14.The dismantling device is symmetrically mounted on to the both sides of the expansion joint, specifically
, clamp the outer face marginal portion of the flange 14, and the outer face side of the flange 10 with the jaws of the holder
Edge point；More specifically, the suspension position 13 of the clamping plate 8 is accommodated between flange 12 and flange 10, make the clamping plate 2
The edge of the step of downside marginal portion and the flange 14 abuts, rotary hollow inner thread piece 5 so that the screw rod
1 and the length that is located in the hollow inner thread piece of the screw rod 7 diminish simultaneously, so as to drive clamping plate 2 and clamping plate 8 to transport in opposite directions
It is dynamic, and then the jaws is reduced, shortened with further compressing the expansion joint, so that the flange 14 and cooling three
Between the water inlet at angle, and there is gap between the flange 10 and the flange 12；Keep the clamping shape of the holder
State；Further, between the water inlet for removing the flange 14 and the cooling triangle, and the flange 10 and the flange
Old sealing gasket between 12；The flange 14 and it is described cooling triangle water inlet between, and the flange 10 with it is described
New sealing gasket is installed between flange 12；Reversely rotate hollow inner thread piece 5 so that the screw rod 1 and screw rod 7 are in described
Length in empty inner thread piece 5 is big with time-varying, so as to promote the clamping plate 2 and the clamping plate 8 to move opposite to each other, and then causes described
Jaws is magnified, and at the same time, the expansion joint is recovered to original Free Compression state by the elastic force of its own；Remove institute
State dismantling device；According to original position installation two halves formula flange 16, and by bolt 15 and nut by two halves formula flange 15 with
Flange 14 is fixed, and is fixed flange 10 and flange 12 by bolt 13 and nut.By above-mentioned steps, the expansion joint both ends
Sealing gasket, which is changed, to be completed.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (9)
- A kind of 1. expansion joint dismantling device, it is characterised in that：The dismantling device includes holder and force-applying piece, the holder Jaws with the end face edge part that can clamp expansion joint axial direction both ends, the force-applying piece are connected to the holder And the holder can be applied for so that the power that the jaws is magnified or reduced.
- 2. expansion joint dismantling device according to claim 1, it is characterised in that：The holder includes the support member (6) of spaced apart relative clamping plate and support between the clamping blocks, the folder Interval between plate forms the jaws, and each clamping plate is be hinged with the support member (6), with can be pivotably movable with respect each other And magnify or reduce the jaws.
- 3. expansion joint dismantling device according to claim 2, it is characterised in that：The homonymy relative position of the relative clamping plate is respectively kept with opening (22), described to be open on the clamping plate part of (22) both sides It is respectively equipped with the through hole (20,21) of coaxial line；The both ends end of the support member (6) has what is be adapted with the opening (22) Size, and provided with the hole to match with the through hole (20,21), institute can be contained in so as to the end of the support member (6) State in opening (22), and cut with scissors by the bearing pin (3,9) through the hole and the through hole (20,21) with the corresponding clamping plate Connect.
- 4. the expansion joint dismantling device according to Claims 2 or 3, it is characterised in that：The force-applying piece includes the stud being separately mounted on the relative clamping plate and is connected between described stud Hollow inner thread piece (5), the stud are threaded in the both ends end sections of the hollow inner thread piece (5) respectively；Phase To the stud it is externally threaded oppositely oriented, so as to the hollow inner thread piece (5) when rotated, the stud is located at Length in the hollow inner thread piece (5) diminishes greatly or simultaneously with time-varying.
- 5. expansion joint dismantling device according to claim 4, it is characterised in that：One in the stud is the T-shaped screw rod of positive screw thread (1), and another is the T-shaped screw rod of anti-screw thread (7), and the positive screw thread is T-shaped Screw rod (1) and the T-shaped screw rod of anti-screw thread (7) include snap portions connected vertically (23) and screw portion (24)；It is described Groove (18) and the mounting hole longitudinally through the clamping plate in the groove (18) are respectively equipped with relative clamping plate (19)；The snap portions (23) are arranged in the groove (18), and the screw portion (24) runs through the mounting hole (19)。
- 6. expansion joint dismantling device according to claim 5, it is characterised in that：The hollow inner thread piece (5) is positive and negative silk swivel nut, one end and the T-shaped screw rod of positive screw thread (1) of the positive and negative silk swivel nut Screw portion (24) is threadedly coupled, and the other end is threadedly coupled with the screw portion (24) of the anti-T-shaped screw rod of screw thread (7).
- 7. expansion joint dismantling device according to claim 4, it is characterised in that：The force-applying piece also includes being used to prevent the locking member (4) that the cannulated threaded part (5) rotates when being rotated in place.
- 8. expansion joint dismantling device according to claim 7, it is characterised in that：The locking member (4) is locking nut, and the locking nut can be T-shaped with the T-shaped screw rod of positive screw thread (1) and/or anti-screw thread Screw rod (7) is threadedly coupled, when being in contact so as to the locking nut with the hollow inner thread piece (5), the locking nut energy The hollow inner thread piece (5) is enough prevented to rotate.
- 9. expansion joint dismantling device according to claim 3, it is characterised in that：A clamping plate in the relative clamping plate opposite side relative in (22) side that is open with it is provided with suspension position (13), When the expansion joint is connected by the flange (10) of its end with the flange (12) of outer sleeve, described suspension position (13) energy Enough it is contained between the flange (10) of the expansion joint and the flange (12) of the outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720378707.5U CN206702914U (en) | 2017-04-12 | 2017-04-12 | A kind of expansion joint dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720378707.5U CN206702914U (en) | 2017-04-12 | 2017-04-12 | A kind of expansion joint dismantling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206702914U true CN206702914U (en) | 2017-12-05 |
Family
ID=60455823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720378707.5U Active CN206702914U (en) | 2017-04-12 | 2017-04-12 | A kind of expansion joint dismantling device |
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| Country | Link |
|---|---|
| CN (1) | CN206702914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895204A (en) * | 2020-07-16 | 2020-11-06 | 中国核动力研究设计院 | Expansion joint mounting method and dismounting method |
| CN112078754A (en) * | 2020-08-13 | 2020-12-15 | 沪东中华造船(集团)有限公司 | Installation method of unconstrained expansion joint |
-
2017
- 2017-04-12 CN CN201720378707.5U patent/CN206702914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895204A (en) * | 2020-07-16 | 2020-11-06 | 中国核动力研究设计院 | Expansion joint mounting method and dismounting method |
| CN112078754A (en) * | 2020-08-13 | 2020-12-15 | 沪东中华造船(集团)有限公司 | Installation method of unconstrained expansion joint |
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