CN112917427A - A draw gear that is used for stabiliser electric heating element to demolish - Google Patents
A draw gear that is used for stabiliser electric heating element to demolish Download PDFInfo
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- CN112917427A CN112917427A CN202110118522.1A CN202110118522A CN112917427A CN 112917427 A CN112917427 A CN 112917427A CN 202110118522 A CN202110118522 A CN 202110118522A CN 112917427 A CN112917427 A CN 112917427A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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Abstract
The invention discloses a drawing device for removing an electric heating element of a voltage stabilizer, which comprises a structure frame and a drawing assembly arranged on the structure, wherein the structure frame comprises a guide rail, the drawing assembly comprises a power part, a connecting base and a connecting mechanism, the connecting base and the connecting mechanism are both connected onto the guide rail in a sliding manner, and locking mechanisms for realizing the position locking of the connecting base and the connecting mechanism in the axial direction of the guide rail respectively are arranged on the connecting base and the connecting mechanism; the power component is used for outputting linear reciprocating motion along the axial direction of the guide rail, the main body part of the power component is fixedly connected with the connecting base, and the output end of the power component is fixedly connected to the connecting mechanism; the electric heating element is characterized by further comprising a connecting piece which is fixed on the connecting mechanism and located on one side, far away from the power part, of the connecting mechanism, and the connecting piece is used for being connected with the lower end of the electric heating element. The device has simple structure, can finish the drawing of the electric heating element by the bottom of the voltage stabilizer, and has convenient drawing operation.
Description
Technical Field
The invention relates to the technical field of dismantling devices of voltage stabilizers of nuclear power stations, in particular to a drawing device for dismantling an electric heating element of a voltage stabilizer.
Background
The voltage stabilizer is one of the key devices of a reactor system, and an electric heating element of the voltage stabilizer is directly inserted into the voltage stabilizer from a lower end socket, is used for limiting the reduction of the internal pressure of the voltage stabilizer and is a key part for regulating the pressure of a loop. The general mounting of the electric heating element is: the voltage stabilizer is arranged in the voltage stabilizer sleeve penetrating piece and is fixed by welding; the sleeve pipe penetrating piece penetrates through the lower end socket of the voltage stabilizer and is fixedly connected with the inner wall of the voltage stabilizer through welding. The sleeve penetration piece is made of 600 nickel-based alloy material, and the electric heating element jacket is made of stainless steel material.
The electric heating element loses its pressure regulating effect when it is swollen and deformed due to long-term immersion in water, and needs to be replaced. When the electric heating element is replaced, firstly, the connecting welding seam between the lower end of the electric heating element and the sleeve penetrating piece is cut off. When the welding seam is completely cut, if the electric heating element generates large friction force with the interior of the sleeve due to local swelling and cannot fall down by means of self gravity or be manually pulled to remove the electric heating element, a special removing device needs to be developed to overcome the friction force and remove the electric heating element from the penetrating piece of the voltage stabilizer sleeve.
In the prior art, technical schemes such as a method for repairing a voltage stabilizer and equipment for implementing the method appear, and the technical schemes are used for a processing device of an electric heating element which cannot be detached through a sleeve penetrating piece in a lower end socket of the voltage stabilizer. The device is in the completion dismantlement in-process, need carry out the cutting construction, need utilize the manhole at stabiliser top simultaneously.
Further optimization of tools or equipment for maintaining the voltage stabilizer undoubtedly further promotes the development of the nuclear power industry in China.
Disclosure of Invention
Aiming at the technical problem that the development of the nuclear power industry in China can be further promoted undoubtedly by further optimizing the tools or equipment for maintaining the voltage stabilizer, the invention provides the drawing device for removing the electric heating element of the voltage stabilizer. The device has simple structure, can finish the drawing of the electric heating element by the bottom of the voltage stabilizer, and has convenient drawing operation.
Aiming at the problems, the invention provides a drawing device for removing an electric heating element of a voltage stabilizer, which solves the problems through the following technical points: a drawing device for dismounting an electric heating element of a voltage stabilizer comprises a structure frame and a drawing assembly arranged on the structure, wherein the structure frame comprises a guide rail, the drawing assembly comprises a power part, a connecting base and a connecting mechanism, the connecting base and the connecting mechanism are both connected onto the guide rail in a sliding manner, and locking mechanisms for realizing respective position locking in the axial direction of the guide rail are arranged on the connecting base and the connecting mechanism;
the power component is used for outputting linear reciprocating motion along the axial direction of the guide rail, the main body part of the power component is fixedly connected with the connecting base, and the output end of the power component is fixedly connected to the connecting mechanism;
the electric heating element is characterized by further comprising a connecting piece which is fixed on the connecting mechanism and located on one side, far away from the power part, of the connecting mechanism, and the connecting piece is used for being connected with the lower end of the electric heating element.
This scheme sets up the lower extreme at the stabiliser when specifically using, the guide rail is parallel with the electric heating element who treats drawing, and the connecting piece links to each other with electric heating element's lower extreme, and after the main part through the fixed power part of connection base, power part action, drive connecting piece and coupling mechanism follow-up through the connecting piece downstream for electric heating element obtains the power of being extracted by the sleeve pipe, reaches the purpose of extracting electric heating element by the bottom of stabiliser.
In the specific structure design, aiming at the characteristics that the conventional power part capable of outputting linear reciprocating motion in the prior art has short stroke and the general length of the electric heating element is more than two meters, the device comprises a guide rail, a connecting mechanism and a connecting base, wherein the connecting mechanism and the connecting base can slide relative to the guide rail, and the connecting mechanism and the connecting base are matched with a locking mechanism. In a specific application, the above connection mechanism is used for realizing the position fixation of the connecting piece on the axis of the guide rail, and the connection base is used for realizing the position fixation of the main body part of the power component on the axis of the guide rail, and the specific operation mode can be completed as follows:
firstly, clasping the lower end of a sleeve of an electric heating element of a voltage stabilizer by using a connecting piece;
then the position of the power component is ensured, so that the power component is positioned at a station for drawing the electric heating element;
then, the position of the connecting base on the guide rail is ensured to be locked, and the locking state of the connecting mechanism and the guide rail is moved out;
then the power component acts to provide a pull-down action for the connecting piece;
after the pulling action is in place, the connecting base is moved out of the locking state with the guide rail, so that the connecting mechanism forms a locked state on the guide rail;
then the power component moves, the main body part of the power component moves downwards to provide a necessary power component position basis and a necessary state basis for the next drawing;
and repeating the position and state adjustment actions of the power part to finish the whole drawing operation. In specific application, in order to realize that the whole drawing operation can be completed after the guide rail is fixed once, the length of the track is preferably matched with the whole drawing stroke of the electric heating element, namely, when or before the power part slides to the stop point of the guide rail, the whole electric heating element can be pulled out from the voltage stabilizer.
By adopting the scheme, the main body part of the power part and the output end of the power part are respectively fixed on the guide rail in the process of adjusting the position of the guide rail by adopting the connecting mechanism and the connecting base, so that the problem that the whole electric heating element cannot be removed by one-time drawing of the conventional power part is solved aiming at the characteristic that the available operating space below the voltage stabilizer is narrow; by adopting the scheme, the power parts are respectively fixed, so that when the position of the power part on the guide rail is adjusted, the problems that the installation frame or the sleeve cannot provide restraint for the electric heating element, the device falls down under the action of gravity and potential safety hazards are brought to the maintenance or repair of the voltage stabilizer can be effectively avoided; by adopting the scheme, the constraint relation formed by the guide rail to the connecting structure has a constraint effect on the motion trail of the connecting piece, so that by adopting the scheme, the coaxiality of the electric heating element and the sleeve pipe is ensured, the electric heating element can be conveniently pulled out, and unnecessary abrasion caused by the sleeve pipe in the pulling-out process is avoided; meanwhile, the scheme is simple in structure and convenient to operate.
The above locking mechanism preferably adopts a bolt locking piece with simple structure and reliable locking: the locking bolt is driven to rotate through the rotating handle, and the corresponding connecting structure or the connecting base is used for compressing the guide rail through the locking bolt.
The further technical scheme is as follows:
as a light in weight, cooperate through many guide rails, form and have the restraint body of bigger rigidity connection structure to do benefit to above-mentioned axiality, can reduce the space that this device occupied simultaneously, in order to adapt to the technical scheme in the available operating space below the stabiliser, set up to: the connecting base and the connecting mechanism are in sliding connection fit with the guide rails through holes arranged on the connecting base and the guide rails; the power component and the connecting piece are both arranged in a space enclosed by the guide rails.
As described above, considering the problem that the available operating space below the voltage stabilizer is small, as a specific implementation scheme that on one side, the connection piece is convenient to fix with the electric heating element, and the whole size of the connection piece is small, the connection piece is set as: the connecting piece comprises two claw-shaped drawing blocks which are in a clamping block shape, the two claw-shaped drawing blocks are arranged oppositely, a clamping space for clamping the lower end of the electric heating element is formed between the two claw-shaped drawing blocks, and the distance between the two claw-shaped drawing blocks is adjustable;
the locking piece is used for fixing the relative positions of the two claw-shaped drawing blocks;
the locking piece comprises connecting pieces, connecting screws or clamping pieces and connecting screws or clamping pieces, wherein two ends of each connecting piece are respectively used for being connected with different claw-shaped drawing blocks, and the connecting screws or the clamping pieces are used for connecting the connecting pieces and the claw-shaped drawing blocks. When the scheme is used specifically, for example, by utilizing the annular groove or the flange arranged at the bottom side of the electric heating element, the claw-shaped drawing block clamps the annular groove to be pressed through the protruding part below the annular groove, or the bottom side of the claw-shaped drawing block is pressed on the top surface of the flange, so that the connecting piece can provide downward pull force with enough size for the electric heating element. In the structural design of the specific connecting piece, the two claw-shaped drawing blocks are close to each other by applying force to at least one claw-shaped drawing block so as to reduce the force of the clamping space, and after the two claw-shaped drawing blocks form a state capable of providing tension for the electric heating element, the connecting piece, the connecting screw or the fastener restricts the relative position relation of the two claw-shaped drawing blocks, so that the connection of the connecting piece and the electric heating element can be completed.
Be convenient for above centre gripping space size adjustment, set up to: each claw-shaped drawing block is fixedly connected with the connecting mechanism through an elastic sheet.
In specific application, the force required for pulling out the electric heating element is considered to be possibly large, and when the self gravity of the device is smaller than the corresponding pulling force, the electric heating element can not be pulled out because the device is lifted; because the position stability of the device becomes poor, the displacement may cause the electric heating element to be difficult to be pulled out, so the design is as follows: the sleeve clamping and clasping mechanism is arranged at the upper end of the structure frame and used for realizing the connection of the structure frame and the sleeve. When the scheme is specifically applied, the guide rail can be fixed relative to the voltage stabilizer through the sleeve clamping and clasping mechanism, so that the sleeve can be pressed when the drawing process is executed, and the problem that the guide rail cannot be drawn out or is difficult to draw out due to the fact that gravity is smaller than corresponding pulling force or position change introduced above is avoided; while the position of the guide rail relative to the electric heating element can be constrained to ensure the coaxiality of the electric heating element and the sleeve.
As the whole electric heating element of completion is extracted into consideration, only need accomplish once this device fixed characteristics on the sleeve pipe, this scheme still provides a simple structure, the structure is small, the sleeve pipe centre gripping mechanism of being convenient for operate: the sleeve clamping and clasping mechanism comprises a base and a plurality of blocky claw-shaped positioning blocks arranged on the base, wherein part of the claw-shaped positioning blocks are fixedly arranged on the base, and part of the claw-shaped positioning blocks are restrained on the base through a sliding chute and a rail and can slide along the sliding chute or the rail;
the first rotating handle is fixed on the base and can rotate around the axis of the first rotating handle;
the gear transmission mechanism is connected with the output end of the first rotating handle;
the claw-shaped positioning blocks constrained on the base through the sliding chutes and the rails are matched with transmission shafts in threaded connection with the claw-shaped positioning blocks;
each transmission shaft is connected with the first rotating handle through a gear transmission mechanism;
the claw-shaped positioning blocks jointly enclose a clamping space for clamping the sleeve. When the clamping device is used specifically, the clamping space is defined by the claw-shaped positioning blocks together, so the gear transmission mechanism is driven to rotate through the first rotating handle, the transmission shaft rotates under the action of the gear transmission mechanism, the transmission shaft is in threaded connection with the corresponding claw-shaped positioning blocks, and the claw-shaped positioning blocks and the base are restrained through the sliding grooves and the rails, so the claw-shaped positioning blocks cannot rotate along with the transmission shaft. Preferably, the first rotating handle is arranged on the side face of the base, and the claw-shaped positioning block is arranged on the upper surface of the base, so that the mutual positive pressure between the base and the bottom end of the sleeve can be utilized to ensure the stability of the position of the sleeve clamping and clasping mechanism on the sleeve axis.
As a power component implementation scheme with simple structure, convenient operation and small overall structure, the power component is a cylinder;
in the air cylinder, an air cylinder body is fixedly connected with the connecting base; the piston rod is fixedly connected with the connecting mechanism. As a person skilled in the art, in a specific application, for adjusting the position of the cylinder body, the two ends of the cylinder body are connected to air source pipes, which are respectively: the telescopic of the cylinder and the position adjustment of the cylinder body of the cylinder on the guide rail can be realized by the way of the upper air inlet pipe and the lower air inlet pipe.
Under the certain condition of guide rail length, for the distance that matches sleeve pipe and below can be used for supporting this device's platform or ground, set up as: the device also comprises a supporting mechanism which is arranged at the lower end of the structure frame and used for adjusting the height of the guide rail.
As a concrete supporting mechanism implementation scheme capable of effectively utilizing the length of the guide rail, the device is provided with: the supporting mechanism comprises a supporting plate and a plurality of telescopic rods connected to the lower side of the supporting plate;
the lower end of the guide rail is detachably connected to the support plate;
the telescopic rod is used as a supporting leg for supporting the supporting disc;
the connecting position of the connecting base on the main body part is positioned at the upper end of the main body part, and when the power component moves along the guide rail, the corresponding moving track passes through the central hole of the supporting disc. In the scheme, the number of the telescopic rods is preferably three, and meanwhile, for the stability of the lifting device, circular gaskets are fixed at the lower ends of the telescopic rods; the connecting position of the connecting base on the main body part is arranged at the upper end of the main body part, the corresponding motion track penetrates through the central hole of the supporting plate, and the main body part is accommodated by utilizing the lower space of the supporting plate, so that the lower end of the guide rail is effectively utilized when the position adjustment of the main body part is realized.
As a technical scheme that the anti-falling redundant protection below the supporting disc can be used, the position adjustment condition of the main body part on the guide rail can be conveniently judged, the anti-falling redundant protection device is arranged as follows: the supporting mechanism is also provided with a blocking part which is positioned below the supporting plate and is opposite to the central hole.
The invention has the following beneficial effects:
by adopting the scheme, the main body part of the power part and the output end of the power part are respectively fixed on the guide rail in the process of adjusting the position of the guide rail by adopting the connecting mechanism and the connecting base, so that the problem that the whole electric heating element cannot be removed by one-time drawing of the conventional power part is solved aiming at the characteristic that the available operating space below the voltage stabilizer is narrow; by adopting the scheme, the power parts are respectively fixed, so that when the position of the power part on the guide rail is adjusted, the problems that the installation frame or the sleeve cannot provide restraint for the electric heating element, the device falls down under the action of gravity and potential safety hazards are brought to the maintenance or repair of the voltage stabilizer can be effectively avoided; by adopting the scheme, the constraint relation formed by the guide rail to the connecting structure has a constraint effect on the motion trail of the connecting piece, so that by adopting the scheme, the coaxiality of the electric heating element and the sleeve pipe is ensured, the electric heating element can be conveniently pulled out, and unnecessary abrasion caused by the sleeve pipe in the pulling-out process is avoided; meanwhile, the scheme is simple in structure and convenient to operate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of a pulling device for removing an electric heating element of a voltage stabilizer according to the present invention;
FIG. 2 is a partial schematic view of an embodiment of a drawing apparatus for removing an electric heating element of a voltage stabilizer according to the present invention, which is used for reflecting the specific structure of a sleeve clamping and clasping mechanism;
FIG. 3 is a partial schematic view of an embodiment of a pulling apparatus for removing an electrical heating element of a voltage regulator according to the present invention, reflecting the specific structure of the connection mechanism portion;
FIG. 4 is a partial schematic view of an embodiment of a pulling apparatus for removing an electrical heating element of a voltage regulator according to the present invention, reflecting the specific structure of the connection base portion;
FIG. 5 is a partial schematic view of an embodiment of a pulling apparatus for removing an electric heating element of a voltage regulator according to the present invention, which is used for reflecting the specific structure of a supporting mechanism part.
The labels in the figure are respectively: 1. the device comprises a base, 2, a claw-shaped positioning block, 3, a transmission shaft, 4, a gear transmission mechanism, 5, a connecting block, 6, a first rotating handle, 7, a claw-shaped pulling block, 8, a connecting mechanism, 9, a second rotating handle, 10, a guide rail, 11, a cylinder body, 12, a piston rod, 13, a connecting base, 14, a third rotating handle, 15, an upper air inlet pipe, 16, a lower air inlet pipe, 17, an air inlet control valve, 18, a supporting disk, 19, a blocking piece, 20, a telescopic rod, 21 and a circular gasket.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
example 1:
as shown in fig. 1 to 5, a drawing apparatus for removing an electric heating element of a voltage stabilizer includes a structural frame and a drawing assembly disposed on the structure, the structural frame includes a guide rail 10, the drawing assembly includes a power component, a connection base 131 and a connection mechanism 8, the connection base 131 and the connection mechanism 8 are both slidably connected to the guide rail 10, and the connection base 131 and the connection mechanism 8 are both provided with a locking mechanism for achieving respective position locking in an axial direction of the guide rail 10;
the power component is used for outputting linear reciprocating motion along the axial direction of the guide rail 10, the main body part of the power component is fixedly connected with the connecting base 131, and the output end of the power component is fixedly connected to the connecting mechanism 8;
the electric heating element is characterized by further comprising a connecting piece which is fixed on the connecting mechanism 8 and located on one side, far away from the power part, of the connecting mechanism 8, and the connecting piece is used for being connected with the lower end of the electric heating element.
This scheme sets up the lower extreme at the stabiliser when specifically using, guide rail 10 is parallel with the electric heating element who treats drawing, and the connecting piece links to each other with electric heating element's lower extreme, and behind the main part through connection base 131 fixed power part, power part action, drive connecting piece and coupling mechanism 8 follow-up, through the connecting piece downstream for electric heating element obtains the power of being extracted by the sleeve pipe, reaches the purpose of extracting electric heating element by the bottom of stabiliser.
In the specific structure design, aiming at the characteristics that the conventional power component capable of outputting linear reciprocating motion in the prior art has short stroke and the common length of the electric heating element is more than two meters, the device comprises a guide rail 10, a connecting mechanism 8 and a connecting base 131, wherein the connecting mechanism 8 and the connecting base 131 can slide relative to the guide rail 10, and the connecting mechanism 8 and the connecting base 131 are matched with a locking mechanism. In a specific application, the above connection mechanism 8 is used for realizing the position fixation of the connecting piece on the axis of the guide rail 10, and the connection base 131 is used for realizing the position fixation of the power component main body part on the axis of the guide rail 10, and the specific operation mode can be realized as follows:
firstly, clasping the lower end of a sleeve of an electric heating element of a voltage stabilizer by using a connecting piece;
then the position of the power component is ensured, so that the power component is positioned at a station for drawing the electric heating element;
then, the position of the connection base 131 on the guide rail 10 is ensured to be locked, and the locking state of the connection mechanism 8 and the guide rail 10 is moved out;
then the power component acts to provide a pull-down action for the connecting piece;
after the pulling action is in place, the connection base 131 and the guide rail 10 are moved out of the locking state, so that the connection mechanism 8 is in the locked state on the guide rail 10;
then the power component moves, the main body part of the power component moves downwards to provide a necessary power component position basis and a necessary state basis for the next drawing;
and repeating the position and state adjustment actions of the power part to finish the whole drawing operation. In specific application, in order to fix the guide rail 10 once and complete the whole drawing operation, the length of the track is preferably matched with the whole drawing stroke of the electric heating element, that is, when or before the power part slides to the stop point of the guide rail 10, the whole electric heating element can be pulled out from the voltage stabilizer.
By adopting the scheme, the connection mechanism 8 and the connection base 131 are respectively adopted to respectively realize the fixation of the main body part of the power part and the output end of the power part on the guide rail 10 in the position adjustment process of the guide rail 10, so that the problem that the existing power part can not finish the removal of the whole electric heating element through one-time drawing is solved aiming at the characteristic that the available operation space below the voltage stabilizer is narrow; by adopting the scheme, as the respective fixation is realized, when the position of the power component on the guide rail 10 is adjusted, the problems that the device falls down under the action of gravity and potential safety hazards are brought to the maintenance or repair of the voltage stabilizer due to the fact that the mounting frame or the sleeve cannot provide restraint for the electric heating element can be effectively avoided; by adopting the scheme, the constraint relation formed by the guide rail 10 to the connecting structure has a constraint effect on the motion trail of the connecting piece, so that by adopting the scheme, the coaxiality of the electric heating element and the sleeve is ensured, the electric heating element can be conveniently pulled out, and unnecessary abrasion caused by the sleeve in the pulling-out process is avoided; meanwhile, the scheme is simple in structure and convenient to operate.
The above locking mechanism preferably adopts a bolt locking piece with simple structure and reliable locking: the locking bolt is driven to rotate by the rotating handle, and the corresponding connecting structure or the connecting base 131 is used for compressing the guide rail 10.
Example 2:
the embodiment is further limited on the basis of the embodiment 1, and as a technical scheme that the constraint body with a connecting structure with greater rigidity is formed by matching a plurality of guide rails 10 with light weight so as to be beneficial to the coaxiality and reduce the occupied space of the device so as to adapt to the available operating space below the voltage stabilizer, the technical scheme is as follows: the number of the guide rails 10 is multiple, the guide rails 10 are parallel to each other, and the connecting base 131 and the connecting mechanism 8 form a sliding connection fit relation with each guide rail 10 through holes arranged on the connecting base and each guide rail; the power component and the connecting piece are both arranged in the space enclosed by the guide rail 10.
As described above, considering the problem that the available operating space below the voltage stabilizer is small, as a specific implementation scheme that on one side, the connection piece is convenient to fix with the electric heating element, and the whole size of the connection piece is small, the connection piece is set as: the connecting piece comprises two claw-shaped pulling blocks 7 which are in a clamping block shape, the two claw-shaped pulling blocks 7 are arranged oppositely, a clamping space for clamping the lower end of the electric heating element is formed between the two claw-shaped pulling blocks 7, and the distance between the two claw-shaped pulling blocks 7 is adjustable;
the device also comprises a locking piece for fixing the relative positions of the two claw-shaped drawing blocks 7;
the locking piece comprises connecting pieces with two ends respectively used for being connected with different claw-shaped pulling blocks 7, and connecting screws or buckling pieces used for achieving connection of the connecting pieces and the claw-shaped pulling blocks 7. When the scheme is used specifically, for example, by utilizing the annular groove or the flange arranged at the bottom side of the electric heating element, the claw-shaped pulling block 7 clamps the annular groove to be pressed through the protruding part below the annular groove, or the bottom side of the claw-shaped pulling block 7 is pressed and held on the top surface of the flange, so that the connecting piece can provide downward pull force with enough magnitude for the electric heating element. In the structural design of the specific connecting piece, the two claw-shaped pulling blocks 7 are mutually closed by applying the force on at least one claw-shaped pulling block 7 so as to reduce the force of the clamping space, and after the two claw-shaped pulling blocks 7 form a state capable of providing tension for the electric heating element, the connecting piece, the connecting screw or the clamping piece restrains the relative position relation of the two claw-shaped pulling blocks 7, so that the connection of the connecting piece and the electric heating element can be completed.
Be convenient for above centre gripping space size adjustment, set up to: each claw-shaped drawing block 7 is fixedly connected with a connecting mechanism 8 through an elastic sheet.
As a power component implementation scheme with simple structure, convenient operation and small overall structure, the power component is a cylinder;
in the cylinder, a cylinder body 11 of the cylinder is fixedly connected with a connecting base 131; the piston rod 12 is fixedly connected to the connecting means 8. As a person skilled in the art, in specific application, for adjusting the position of the cylinder block 11, two ends of the cylinder block 11 are connected to gas source pipes, which are respectively: the expansion and contraction of the cylinder and the position adjustment of the cylinder body 11 on the guide rail 10 can be realized by the upper air inlet pipe 15 and the lower air inlet pipe 16.
In the case of a certain length of the guide rail 10, in order to match the distance between the sleeve and the platform or ground below which the device can be supported, the following settings are provided: the device also comprises a supporting mechanism which is arranged at the lower end of the structure frame and is used for adjusting the height of the guide rail 10.
As a specific supporting mechanism implementation scheme which can effectively utilize the length of the guide rail 10, the following scheme is provided: the supporting mechanism comprises a supporting plate 18 and a plurality of telescopic rods 20 connected to the lower side of the supporting plate 18;
the lower end of the guide rail 10 is detachably connected to a support plate 18;
the telescopic rod 20 is used as a supporting leg for supporting the supporting plate 18;
the connection position of the connection base 131 on the body portion is located at the upper end of the body portion, and the corresponding movement trace passes through the central hole of the support plate 18 when the power unit moves along the guide rail 10. In the scheme, the number of the telescopic rods 20 is preferably three, and meanwhile, for the stability of the lifting device, circular gaskets 21 are fixed at the lower ends of the telescopic rods 20; the connection position of the connection base 131 on the body portion is set to be located at the upper end of the body portion, the corresponding motion trace passes through the center hole of the support plate 18, and the body portion is intended to be accommodated by using the lower space of the support plate 18, so that the lower end of the guide rail 10 is effectively utilized when the position adjustment of the body portion is realized.
As a technical scheme which can be used as anti-falling redundant protection below the supporting disc 18 and is convenient for judging the position adjustment condition of the main body part on the guide rail 10, the anti-falling redundant protection device is arranged as follows: the supporting mechanism is also provided with a blocking part 19 which is positioned below the supporting disk 18 and is opposite to the central hole.
Example 3:
this embodiment is further limited based on embodiment 1, and in particular, in application, considering that the force required for pulling out the electric heating element may be large, when the gravity of the device itself is smaller than the corresponding pulling force, the device cannot be pulled out because the device is lifted; because the position stability of the device becomes poor, the displacement may cause the electric heating element to be difficult to be pulled out, so the design is as follows: the sleeve clamping and clasping mechanism is arranged at the upper end of the structure frame and used for realizing the connection of the structure frame and the sleeve. When the scheme is specifically applied, the guide rail 10 can be fixed relative to the voltage stabilizer through the sleeve clamping and clasping mechanism, so that the sleeve can be pressed when the drawing process is executed, and the problem that the guide rail cannot be drawn out or is difficult to draw out due to the fact that gravity is smaller than corresponding pulling force or position change introduced above is avoided; while the position of the rail 10 relative to the electric heating element can be constrained to ensure the coaxiality of the electric heating element with the sleeve.
As the whole electric heating element of completion is extracted into consideration, only need accomplish once this device fixed characteristics on the sleeve pipe, this scheme still provides a simple structure, the structure is small, the sleeve pipe centre gripping mechanism of being convenient for operate: the sleeve clamping and clasping mechanism comprises a base 1 and a plurality of blocky claw-shaped positioning blocks 2 arranged on the base 1, wherein part of the claw-shaped positioning blocks 2 are fixedly arranged on the base 1, part of the claw-shaped positioning blocks 2 are restrained on the base 1 through a sliding chute and a rail, and the part of the claw-shaped positioning blocks 2 can slide along the sliding chute or the rail;
the device also comprises a first rotating handle 6 which is fixed on the base 1 and can rotate around the axis of the first rotating handle;
the gear transmission mechanism 4 is connected with the output end of the first rotating handle 6;
the claw-shaped positioning blocks 2 constrained on the base 1 through the sliding chutes and the rails are matched with transmission shafts 3 in threaded connection with the claw-shaped positioning blocks respectively;
each transmission shaft 3 is connected with a first rotating handle 6 through a gear transmission mechanism 4;
the claw-shaped positioning blocks 2 jointly enclose a clamping space for clamping the sleeve. When the clamping device is used specifically, the clamping space is defined by the claw-shaped positioning blocks 2 together, so the gear transmission mechanism 4 is driven to rotate through the first rotating handle 6, the transmission shaft 3 rotates under the action of the gear transmission mechanism 4, the transmission shaft 3 is in threaded connection with the corresponding claw-shaped positioning blocks 2, and the claw-shaped positioning blocks 2 and the base 1 are restrained through the sliding grooves and the rails, so the claw-shaped positioning blocks 2 cannot rotate along with the transmission shaft 3, and the positions of the corresponding claw-shaped positioning blocks 2 on the axis of the transmission shaft 3 can be adjusted in this way, and the purpose of adjusting the size of the clamping space is achieved. Preferably, the first rotating handle 6 is arranged on the side surface of the base 1, and the claw-shaped positioning block 2 is arranged on the upper surface of the base 1, so that the stability of the position of the sleeve clamping and holding mechanism on the sleeve axis can be ensured by utilizing the mutual positive pressure between the base 1 and the bottom end of the sleeve.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. For those skilled in the art to which the invention pertains, other embodiments that do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (10)
1. A drawing device for dismounting an electric heating element of a voltage stabilizer comprises a structure frame and a drawing assembly arranged on the structure, and is characterized in that the structure frame comprises a guide rail (10), the drawing assembly comprises a power component, a connecting base (13) and a connecting mechanism (8), the connecting base (13) and the connecting mechanism (8) are both connected to the guide rail (10) in a sliding manner, and locking mechanisms for realizing respective position locking in the axial direction of the guide rail (10) are arranged on the connecting base (13) and the connecting mechanism (8);
the power component is used for outputting linear reciprocating motion along the axial direction of the guide rail (10), the main body part of the power component is fixedly connected with the connecting base (13), and the output end of the power component is fixedly connected to the connecting mechanism (8);
the electric heating element is characterized by further comprising a connecting piece which is fixed on the connecting mechanism (8) and located on one side, far away from the power part, of the connecting mechanism (8), and the connecting piece is used for being connected with the lower end of the electric heating element.
2. The pulling device for removing the electric heating element of the voltage stabilizer as claimed in claim 1, wherein the number of the guide rails (10) is multiple, the guide rails (10) are parallel to each other, and the connecting base (13) and the connecting mechanism (8) are in sliding connection fit with the guide rails (10) through holes arranged on the connecting base and the connecting mechanism respectively; the power component and the connecting piece are both arranged in a space enclosed by the guide rail (10).
3. The pulling device for removing the electric heating element of the voltage stabilizer as claimed in claim 1, wherein the connecting piece comprises two claw-shaped pulling blocks (7) which are in a clamping block shape, the two claw-shaped pulling blocks (7) are arranged oppositely, a clamping space for clamping the lower end of the electric heating element is formed between the two claw-shaped pulling blocks (7), and the distance between the two claw-shaped pulling blocks (7) is adjustable;
the device also comprises a locking piece for fixing the relative positions of the two claw-shaped drawing blocks (7);
the locking piece comprises connecting pieces, two ends of each connecting piece are respectively used for being connected with different claw-shaped pulling blocks (7), and the locking piece further comprises connecting screws or clamping pieces used for achieving connection of the connecting pieces and the claw-shaped pulling blocks (7).
4. A pulling device for removing an electric heating element of a voltage regulator as claimed in claim 3, characterized in that each claw-shaped pulling block (7) is fixedly connected to the connection means (8) by means of an elastic tab.
5. The pulling device for removing the electric heating element of the voltage stabilizer as recited in claim 1, further comprising a sleeve clamping and clasping mechanism arranged at the upper end of the structural frame for connecting the structural frame with the sleeve.
6. The pulling device for removing the electric heating element of the voltage stabilizer is characterized in that the sleeve clamping and clasping mechanism comprises a base (1), a plurality of claw-shaped positioning blocks (2) which are arranged on the base (1) and are in block shapes, wherein part of the claw-shaped positioning blocks (2) are fixedly arranged on the base (1), part of the claw-shaped positioning blocks (2) are constrained on the base (1) through a sliding chute and a rail, and the part of the claw-shaped positioning blocks (2) can slide along the sliding chute or the rail;
the device also comprises a first rotating handle (6) which is fixed on the base (1) and can rotate around the axis of the first rotating handle;
the gear transmission mechanism (4) is connected with the output end of the first rotating handle (6);
the claw-shaped positioning blocks (2) constrained on the base (1) through the sliding chutes and the tracks are matched with transmission shafts (3) in threaded connection with the claw-shaped positioning blocks respectively;
each transmission shaft (3) is connected with a first rotating handle (6) through a gear transmission mechanism (4);
the claw-shaped positioning blocks (2) jointly enclose a clamping space for clamping the sleeve.
7. The pulling apparatus as set forth in claim 1 wherein said power unit is a gas cylinder;
in the cylinder, a cylinder body (11) of the cylinder is fixedly connected with a connecting base (13); the piston rod (12) is fixedly connected with the connecting mechanism (8).
8. The pulling device for removing the electric heating element of a voltage regulator as claimed in claim 1, further comprising a support mechanism arranged at the lower end of the structural frame for adjusting the height of the guide rail (10).
9. The pulling apparatus for removing an electric heating element of a voltage regulator as claimed in claim 8, wherein said support means comprises a support plate (18) and a plurality of telescopic rods (20) connected to the underside of the support plate (18);
the lower end of the guide rail (10) is detachably connected to the support plate (18);
the telescopic rod (20) is used as a supporting leg for supporting the supporting disc (18);
the connecting position of the connecting base (13) on the main body part is positioned at the upper end of the main body part, and when the power component moves along the guide rail (10), the corresponding moving track passes through the central hole of the supporting disk (18).
10. A pulling device for removing an electric heating element of a voltage regulator according to claim 9, wherein the support means are further provided with a stop (19) located below the support disc (18) and facing said central hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118522.1A CN112917427B (en) | 2021-01-28 | 2021-01-28 | A draw gear that is used for stabiliser electric heating element to demolish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118522.1A CN112917427B (en) | 2021-01-28 | 2021-01-28 | A draw gear that is used for stabiliser electric heating element to demolish |
Publications (2)
| Publication Number | Publication Date |
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| CN112917427A true CN112917427A (en) | 2021-06-08 |
| CN112917427B CN112917427B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110118522.1A Active CN112917427B (en) | 2021-01-28 | 2021-01-28 | A draw gear that is used for stabiliser electric heating element to demolish |
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| CN (1) | CN112917427B (en) |
Cited By (1)
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| CN114918866A (en) * | 2022-05-06 | 2022-08-19 | 中广核核电运营有限公司 | Drawing device and drawing system comprising same |
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| CN112917427B (en) | 2022-04-29 |
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