CN111673696B - A vertical stainless steel chemical storage tank guide installation fixture - Google Patents

Abstract

The invention belongs to the technical field of chemical equipment, and specifically relates to a vertical stainless steel chemical storage tank guide installation fixture, which includes a bottom plate installed with a positioning mechanism; three lifting mechanisms are installed on the top surface of the bottom plate, and a lifting platform is installed on the top of the lifting mechanism; the inner side of the lifting platform There are three guide sleeves installed on the wall, the guide sleeve is slidably installed with a sliding plate, and the inner end of the sliding plate is installed with a support plate; the top surface of the guide sleeve is fixed with a threaded cylinder through a bracket, and a threaded column is installed in the threaded cylinder; the outer end of the threaded column A gear column is fixedly installed; an installation shaft is installed on the top surface of the guide sleeve to rotate; a first gear is fixedly installed on the inner end of the installation shaft, and a bevel gear is fixedly installed on the outer end of the installation shaft; a bevel gear ring is installed on the horizontal rotation of the top surface of the lifting table. The invention ensures that the storage tank is in a vertical state when placed on the support base, and adjusts the storage tank to a coaxial state with the support base, thereby improving the installation stability of the storage tank.

Description

A vertical stainless steel chemical storage tank guide installation fixture

technical field

The invention belongs to the technical field of chemical equipment, and in particular relates to a guide installation fixture for a vertical stainless steel chemical storage tank.

Background technique

Chemical storage tanks are tanks used to store chemical products. According to the installation method, they can be divided into horizontal storage tanks and vertical storage tanks; according to their materials, they can be divided into metal storage tanks, non-metal storage tanks and metal-non-metal composite storage tanks. Among them, the vertical stainless steel storage tank is the more common one. The vertical stainless steel storage tank is fixed by the supporting seat that cooperates with its bottom surface during use. At present, the installation of the vertical stainless steel storage tank is usually lifted by a crane, and then placed on the ground with the help of the construction personnel. On the support seat, the construction personnel guide and adjust the angle of the storage tank during the hand-holding process. However, in the actual construction process, there will be the following problems in guiding and adjusting the angle of the storage tank through manual hand support: (1) The angle of the storage tank cannot be adjusted manually, and it is impossible to ensure that the storage tank is installed on the support base. In the vertical state, it is easy to cause the installation of the storage tank to be unstable; (2) It is difficult to manually adjust the storage tank to the coaxial state with the support base, which will cause the position of the storage tank to be shifted when placed on the support base, which will also lead to The tank is not installed securely.

Contents of the invention

(1) Technical problems to be solved

The invention provides a guide installation fixture for vertical stainless steel chemical storage tanks, the purpose of which is to solve the following problems in the current installation of vertical stainless steel chemical storage tanks with a crane: (1) The crane cannot accurately adjust the angle of the storage tank Adjustment cannot ensure that the storage tank is in a vertical state when placed on the support base, which may easily lead to unstable installation of the storage tank; (2) It is difficult to manually adjust the storage tank to the coaxial state with the support base, causing the storage tank to be placed on the support The position of the seat is offset, which will also cause the installation of the storage tank to be unstable.

(2) Technical solution

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A vertical stainless steel chemical storage tank guide installation fixture includes an annular bottom plate, the top and bottom surfaces of which are in a horizontal state. A positioning mechanism is installed on the bottom plate. The top surface of the bottom plate is evenly equipped with three lifting mechanisms along its circumference, and the top of the lifting mechanism is fixedly equipped with an annular lifting platform, and the lifting platform and the bottom plate are in a coaxial state. After hoisting the vertical stainless steel chemical storage tank guide installation fixture on the ground as a whole by a crane, the positioning mechanism is used to adjust the bottom plate so that the bottom plate and the support seat of the storage tank are in the coaxial state, and then the lifting mechanism is used to drive the lifting table Raise until the bottom of the lift table is level with the bottom of the tank.

The inner wall of the lifting platform is fixed and fixed with three guide sleeves evenly along its circumference, and a sliding plate is installed in each guiding sleeve along the radial direction of the lifting platform, and the inner end of the sliding plate is fixedly installed with the outer wall and Supporting plates with mating bottom surfaces. The top surface of each guide sleeve is fixedly installed with a threaded cylinder through a bracket, and a threaded column is installed in the threaded cylinder to rotate radially along the lifting platform. The inner end of the threaded column is rotatably matched with the outer side wall of the support plate, and the outer end of the threaded column is fixedly mounted with a coaxial gear column. The top surface of each guide sleeve is rotatably installed with a mounting shaft parallel to the threaded post through the support. The inner end of the installation shaft is fixedly installed with a first gear meshing with the gear column, and the outer end of the installation shaft is fixedly installed with a bevel gear. A bevel gear coaxial with the bevel gear and intermeshed with the bevel gear is installed on the top surface of the lifting table to rotate horizontally. The bevel gear, the installation shaft and the first gear are driven to rotate by rotating the bevel gear ring, and the gear column and the threaded column are driven to rotate by the first gear. During the rotation of the threaded column, it moves inwardly along the threaded barrel, and the supporting plate and the sliding plate are pushed to move inwardly by the threaded column under the limit action of the guide sleeve. The three support plates move synchronously under the push of the threaded column until the three support plates are completely attached to the outer wall and bottom of the storage tank. During the movement of the three support plates, if the storage tank is inclined or shifted In some cases, the support plate will adjust the angle and position of the storage tank.

As a preferred technical solution of the present invention, the positioning mechanism includes three gantry frames, arc plates and three lead screws. The three gantry frames are evenly distributed along the circumference of the bottom plate. The gantry horizontally penetrates the bottom plate along the radial direction of the bottom plate and is slidably matched with the bottom plate. The inner end of each gantry is fixedly equipped with an arc-shaped plate that cooperates with the outer wall of the support seat of the vertical stainless steel chemical storage tank. Each lead screw runs through a gantry frame radially and horizontally along the bottom plate, and the lead screw and the gantry frame are rotatably matched by threads. The inner end of the leading screw is rotatably matched with the outer wall of the bottom plate. After placing the bottom plate on the ground, turn the lead screw to drive the gantry and the arc-shaped plate to move inward until the arc-shaped plate fits on the outer wall of the storage tank support seat. When the outer wall of the seat is attached, the positioning of the bottom plate is completed. During the adjustment and guidance process of the storage tank, the bottom plate, the support seat of the storage tank and the storage tank are always in a coaxial state.

As a preferred technical solution of the present invention, the lifting mechanism includes a guide cylinder, a lifting column, a return spring, a piston cylinder, a piston rod, a first oil tank and a second oil tank. The guide cylinder is vertically and fixedly installed on the top surface of the base plate, and the vertical sliding in the guide cylinder is matched with a lifting column, and the bottom of the lifting column is vertically and fixedly installed with a return spring. A piston cylinder is fixedly installed on the outer wall of the guide cylinder, and a piston rod is slidingly fitted in the piston cylinder. A first oil groove is provided on the side wall of the guide cylinder, and a second oil groove connected with the first oil groove is provided at the end of the piston cylinder. The inner cavities of the guide cylinder and the piston cylinder communicate through the first oil groove and the second oil groove. Hydraulic oil is filled in the inner cavities of the first oil groove, the second oil groove, the guide cylinder and the piston cylinder. After the supporting plate adjusts and supports the storage tank, when the crane lowers the storage tank, the storage tank exerts downward pressure on the supporting plate, and the pressure on the supporting plate is finally transmitted to the lifting platform, lifting The platform pushes the lifting column downward, the lifting column compresses the return spring, and presses the hydraulic oil in the cavity of the guide cylinder into the cavity of the piston cylinder through the first oil groove and the second oil groove, and the piston rod is pushed to slide outward by the hydraulic oil. The lifting mechanism ensures that the speed of the storage tank is stable during the descent process, and there will be no deviation or inclination due to unstable speed. After the installation is completed, after the supporting plate slides outwards to leave the storage tank, the lifting column rises and returns to the original height under the elastic force of the return spring, and the hydraulic oil in the piston cylinder cavity returns to the guide cylinder cavity through the second oil groove and the first oil groove in vivo.

As a preferred technical solution of the present invention, the first oil tank and the second oil tank are horizontal conical structures to reduce the flow rate of hydraulic oil and ensure that the storage tank can fall slowly.

As a preferred technical solution of the present invention, the supporting plate includes a vertical section and an arc section, the vertical section cooperates with the outer side wall of the vertical stainless steel chemical storage tank, and the arc section cooperates with the bottom surface of the vertical stainless steel chemical storage tank co-operate. Several vertical rubber strips are uniformly and fixedly installed on the inner wall of the vertical section to increase the friction between the inner wall of the vertical section and the outer wall of the storage tank and prevent the storage tank from rotating. Balls are evenly installed on the inner wall of the arc section to reduce the friction between the inner wall of the arc section and the bottom surface of the storage tank, so as to ensure that the position of the storage tank will not be changed when the support plate leaves the storage tank after installation .

As a preferred technical solution of the present invention, the outer wall of the bevel gear is fixed horizontally with an outer gear coaxial with it, and the top surface of the lifting platform is horizontally rotatably installed with a second gear meshing with the outer gear. The top surface of the lifting platform is horizontally slidably provided with a clamping block cooperating with the transmission teeth of the second gear, and an elastic telescopic rod is installed at the end of the clamping block. In the process of rotating the bevel ring gear, first push the block horizontally to compress the elastic telescopic rod, so that the block is separated from the transmission teeth of the second gear. After the bevel ring gear is rotated, release the clamping block, and the clamping block is stuck on the transmission teeth of the second gear under the elastic force of the elastic telescopic rod, and the second gear, the outer gear ring and the bevel gear ring are limited, thereby ensuring the bearing There will be no horizontal movement during the vertical direction guidance of the storage tank by the pallet.

(3) Beneficial effects

The present invention has at least the following beneficial effects:

(1) The guide mounting fixture for vertical stainless steel chemical storage tanks of the present invention solves the following problems in the current installation of vertical stainless steel chemical storage tanks with a crane: the crane cannot accurately adjust the angle of the storage tank, and cannot guarantee the storage capacity. When the tank is placed on the support base, it is in a vertical state, which can easily lead to unstable installation of the storage tank; it is difficult to manually adjust the storage tank to the coaxial state with the support base, resulting in a position deviation when the storage tank is placed on the support base. It will also lead to unstable installation of the storage tank.

(2) The present invention adjusts and supports the vertical stainless steel chemical storage tank through three support plates, and guides the storage tank in the vertical direction through the lifting mechanism to ensure that the storage tank is in a vertical state when placed on the support seat ; The three support plates move synchronously under the push of the threaded column, thus ensuring that the storage tank can be adjusted to a vertical state and improving the stability of the storage tank installation.

(3) The base plate and the lifting platform of the present invention are in a coaxial state, and the positioning mechanism can be used to position the base plate to ensure that the base plate and the lifting platform are coaxial with the support seat of the storage tank when the supporting plate is adjusted and guided to the storage tank state, thus ensuring that the position of the storage tank will not shift when it is placed on the support base, and further improving the stability of the installation of the storage tank.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the schematic diagram of the three-dimensional structure of a vertical stainless steel chemical storage tank and its support seat in the embodiment of the present invention;

Fig. 2 is a three-dimensional structural schematic view of the working state of the vertical stainless steel chemical storage tank guide installation fixture in the embodiment of the present invention;

Fig. 3 is a top view of the working state of the vertical stainless steel chemical storage tank guide installation fixture in the embodiment of the present invention;

Fig. 4 is a bottom view of the working state of the vertical stainless steel chemical storage tank guide installation fixture in the embodiment of the present invention;

Fig. 5 is a cross-sectional view of a support plate of a guide mounting fixture for a vertical stainless steel chemical storage tank in an embodiment of the present invention;

Fig. 6 is a schematic diagram of the internal structure of the vertical stainless steel chemical storage tank guide installation jig lifting mechanism in the embodiment of the present invention.

In the figure: 1-base plate, 2-positioning mechanism, 21-gantry frame, 22-curved plate, 23-lead screw, 3-lifting mechanism, 31-guiding cylinder, 32-lifting column, 33-return spring, 34 -piston barrel, 35-piston rod, 36-first oil tank, 37-second oil tank, 4-lifting table, 5-guiding sleeve, 6-sliding plate, 7-supporting plate, 71-vertical section, 72- Arc section, 73-rubber strip, 74-ball, 8-thread barrel, 9-thread column, 10-gear column, 11-installation shaft, 12-first gear, 13-bevel gear, 14-bevel gear, 15-outer ring gear, 16-second gear, 17-block, 18-elastic expansion rod.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

As shown in Figure 2 to Figure 6, this embodiment provides a vertical stainless steel chemical storage tank guide installation fixture, the vertical stainless steel chemical storage tank shown in Figure 1 is auxiliary installed on its support seat, the vertical stainless steel chemical storage tank The chemical storage tank guide installation fixture includes an annular bottom plate 1, the top and bottom surfaces of which are in a horizontal state. A positioning mechanism 2 is installed on the bottom plate 1 . The top surface of the bottom plate 1 is evenly equipped with three lifting mechanisms 3 along its circumference, and the top of the lifting mechanism 3 is fixedly equipped with an annular lifting platform 4, and the lifting platform 4 and the bottom plate 1 are in a coaxial state. After hoisting the vertical stainless steel chemical storage tank guide installation fixture on the ground as a whole by a crane, the positioning mechanism 2 is used to adjust the positioning of the bottom plate 1, so that the bottom plate 1 and the support seat of the storage tank are in the coaxial state, and then through the lifting mechanism 3 Drive the lifting platform 4 to rise until the bottom of the lifting platform 4 reaches a position flush with the bottom of the storage tank.

The inner wall of the lifting platform 4 is evenly fixed with three guide sleeves 5 along its circumference, and a sliding plate 6 is installed in each guiding sleeve 5 along the radial direction of the lifting platform 4, and the inner end of the sliding plate 6 is fixedly installed with a vertical stainless steel The supporting plate 7 that cooperates with the outer side wall and the bottom surface of the chemical storage tank. The top surface of each guide sleeve 5 is fixedly installed with a threaded cylinder 8 by a bracket, and a threaded column 9 is installed in the threaded cylinder 8 along the radial rotation of the lifting platform 4 . The inner end of the threaded column 9 is rotatably matched with the outer side wall of the support plate 7, and the outer end of the threaded column 9 is fixedly mounted with a gear column 10 coaxial therewith. The top surface of each guide sleeve 5 is rotatably installed with a mounting shaft 11 parallel to the threaded column 9 through a bracket. The inner end of the installation shaft 11 is fixedly installed with a first gear 12 meshing with the gear column 10 , and the outer end of the installation shaft 11 is fixedly installed with a bevel gear 13 . The top surface of the lifting table 4 is horizontally rotatably mounted with a bevel gear 14 coaxial with it and meshing with the bevel gear 13 . The bevel gear 13, the installation shaft 11 and the first gear 12 are driven to rotate by rotating the bevel ring gear 14, and the gear column 10 and the threaded column 9 are driven to rotate by the first gear 12. The threaded column 9 moves inwardly along the threaded cylinder 8 during the rotation process, and the supporting plate 7 and the sliding plate 6 are pushed to move inwardly by the threaded column 9 under the limiting action of the guide sleeve 5 . The three support plates 7 move synchronously under the push of the threaded column 9 until the three support plates 7 are completely attached to the outer wall and bottom surface of the storage tank. During the movement of the three support plates 7, if the storage tank is inclined Or in the case of position deviation, the supporting plate 7 will adjust the angle and position of the storage tank.

In this embodiment, the positioning mechanism 2 includes three gantry frames 21 , an arc plate 22 and three lead screws 23 . Three gantry frames 21 are evenly distributed along the circumference of the base plate 1 . The gantry 21 penetrates the bottom plate 1 horizontally along the radial direction of the bottom plate 1 and is slidingly fitted with the bottom plate 1 . The inner end of each gantry 21 is fixedly installed with an arc-shaped plate 22 that cooperates with the outer wall of the support seat of the vertical stainless steel chemical storage tank. Each lead screw 23 horizontally penetrates a gantry 21 along the radial direction of the bottom plate 1 , and the lead screw 23 and the gantry 21 are rotatably engaged by threads. The inner end of the leading screw 23 is rotatably matched with the outer wall of the base plate 1 . After the bottom plate 1 is placed on the ground, the portal frame 21 and the arc-shaped plate 22 are moved inwardly by turning the screw 23 until the arc-shaped plate 22 fits on the outer wall of the storage tank support seat. When the three arc-shaped plates 22 are all attached to the outer wall of the storage tank support seat, the positioning of the bottom plate 1 is completed. During the adjustment and guidance process of the storage tank, the bottom plate 1, the storage tank support seat and the storage tank are always in a coaxial state.

In this embodiment, the lifting mechanism 3 includes a guide cylinder 31 , a lifting column 32 , a return spring 33 , a piston cylinder 34 , a piston rod 35 , a first oil groove 36 and a second oil groove 37 . The guide cylinder 31 is vertically and fixedly installed on the top surface of the base plate 1 , and a lifting column 32 is vertically slid in the guide cylinder 31 , and a return spring 33 is vertically and fixedly installed at the bottom of the lifting column 32 . A piston cylinder 34 is fixedly installed on the outer wall of the guide cylinder 31 , and a piston rod 35 is slidably fitted in the piston cylinder 34 . A first oil groove 36 is defined on the side wall of the guide cylinder 31 , and a second oil groove 37 communicating with the first oil groove 36 is defined at the end of the piston cylinder 34 . The inner cavities of the guide cylinder 31 and the piston cylinder 34 communicate through the first oil groove 36 and the second oil groove 37 . Hydraulic oil is filled in the first oil groove 36 , the second oil groove 37 , and the internal cavities of the guide cylinder 31 and the piston cylinder 34 . After the supporting plate 7 has adjusted and supported the storage tank, the storage tank exerts downward pressure on the supporting plate 7 during the process of hoisting the storage tank downward by the crane, and the pressure received by the supporting plate 7 is finally transmitted to the lifting platform. Platform 4, the lifting platform 4 pushes the lifting column 32 downward, the lifting column 32 compresses the return spring 33, and presses the hydraulic oil in the cavity of the guide cylinder 31 into the cavity of the piston cylinder 34 through the first oil groove 36 and the second oil groove 37 , the piston rod 35 is pushed by the hydraulic oil to slide outwards. The lifting mechanism 3 ensures that the speed of the storage tank is stable in the process of descending, and that no deviation or inclination occurs due to unstable speed. After the installation is completed, after the supporting plate 7 slides to the outside and leaves the storage tank, the lifting column 32 rises and returns to the initial height under the elastic force of the return spring 33, and the hydraulic oil in the cavity of the piston barrel 34 passes through the second oil tank 37 and the first oil tank. 36 gets back in the guide cylinder 31 cavity. The first oil groove 36 and the second oil groove 37 are horizontal conical structures to reduce the flow rate of hydraulic oil and ensure that the storage tank can fall slowly.

In this embodiment, the supporting plate 7 includes a vertical section 71 and an arc section 72, the vertical section 71 cooperates with the outer side wall of the vertical stainless steel chemical storage tank, and the arc section 72 cooperates with the vertical stainless steel chemical storage tank The undersides cooperate with each other. Several vertical rubber strips 73 are evenly fixed on the inner side wall of the vertical section 71 to increase the friction between the inner side wall of the vertical section 71 and the outer side wall of the storage tank to prevent the storage tank from rotating. Balls 74 are evenly installed on the inner wall of the arc section 72 to reduce the friction between the inner wall of the arc section 72 and the bottom surface of the storage tank, so as to ensure that the storage tank will not be changed when the supporting plate 7 leaves the storage tank after the installation is completed. The location of the tank.

In this embodiment, the outer wall of the bevel gear 14 is fixed horizontally with an outer gear 15 coaxial therewith, and the top surface of the lifting table 4 is horizontally mounted with a second gear 16 meshing with the outer gear 15 . A block 17 cooperating with the transmission teeth of the second gear 16 is installed horizontally on the top surface of the lifting platform 4 , and an elastic telescopic rod 18 is installed at the end of the block 17 . During the process of rotating the bevel ring gear 14 , first push the block 17 horizontally to compress the elastic telescopic rod 18 , so that the block 17 is separated from the transmission teeth of the second gear 16 . After the bevel ring gear 14 is rotated, the block 17 is released, and the block 17 is stuck on the transmission teeth of the second gear 16 under the elastic force of the elastic telescopic rod 18, and the second gear 16, the outer ring gear 15 and the bevel ring gear 14 to limit the position, thereby ensuring that the support plate 7 can not move horizontally during the vertical direction guide process of the storage tank.

The process of the vertical stainless steel chemical storage tank guide installation fixture in this embodiment is as follows: After the vertical stainless steel chemical storage tank guide installation fixture is hoisted on the ground by a crane, after the bottom plate 1 is placed on the ground, the wire is rotated. The bar 23 drives the gantry 21 and the arc-shaped plate 22 to move inward until the arc-shaped plate 22 fits on the outer wall of the storage tank support seat, when the three arc-shaped plates 22 are all attached to the outer wall of the storage tank support seat , complete the positioning of the bottom plate 1, the bottom plate 1 and the support seat of the storage tank are in a coaxial state, and then the lifting platform 4 is driven up by the lifting mechanism 3 until the bottom of the lifting platform 4 reaches a position flush with the bottom of the storage tank. The storage tank is hoisted to a suspended position by a crane, and the block 17 is pushed horizontally to compress the elastic telescopic rod 18 so that the block 17 is separated from the transmission teeth of the second gear 16 . The bevel gear 13, the installation shaft 11 and the first gear 12 are driven to rotate by rotating the bevel ring gear 14, and the gear column 10 and the threaded column 9 are driven to rotate by the first gear 12. The threaded column 9 moves inwardly along the threaded cylinder 8 during the rotation process, and the supporting plate 7 and the sliding plate 6 are pushed to move inwardly by the threaded column 9 under the limiting action of the guide sleeve 5 . The three support plates 7 move synchronously under the push of the threaded column 9 until the three support plates 7 are completely attached to the outer wall and bottom surface of the storage tank. During the movement of the three support plates 7, if the storage tank is inclined Or in the case of position deviation, the supporting plate 7 will adjust the angle and position of the storage tank. After the bevel ring gear 14 is rotated, the clamp block 17 is released, and the clamp block 17 is stuck on the transmission teeth of the second gear 16 under the elastic force of the elastic expansion rod 18, and the second gear 16, the outer gear ring 15 and the bevel gear ring 14 to limit. Continue to hang the storage tank downwards by the crane, the supporting plate 7 supports the storage tank, and the lifting mechanism 3 guides the storage tank in the vertical direction until the storage tank is completely placed on its support seat. Rotate the bevel gear ring 14 in reverse to release the supporting effect of the supporting plate 7 on the storage tank, reversely rotate the lead screw 23 to release the supporting effect of the arc-shaped plate 22 on the side wall of the storage tank support seat, and finally lift the vertical tank by the crane. The stainless steel chemical storage tank guide installation fixture can be lifted up as a whole and then removed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. The utility model provides a vertical stainless steel worker storage tank direction sectional fixture which characterized in that: the guide mounting fixture for the vertical stainless steel chemical storage tank comprises an annular bottom plate (1), wherein the top surface and the bottom surface of the bottom plate (1) are in a horizontal state; a positioning mechanism (2) is arranged on the bottom plate (1); the top surface of the bottom plate (1) is uniformly provided with three lifting mechanisms (3) along the circumferential direction, the top of each lifting mechanism (3) is fixedly provided with an annular lifting table (4), and the lifting tables (4) and the bottom plate (1) are in a coaxial state;

three guide sleeves (5) are uniformly and fixedly arranged on the inner side wall of the lifting platform (4) along the circumferential direction of the lifting platform, a sliding plate (6) is arranged in each guide sleeve (5) in a sliding manner along the radial direction of the lifting platform (4), and a bearing plate (7) matched with the outer side wall and the bottom surface of the vertical stainless steel chemical storage tank is fixedly arranged at the inner end of each sliding plate (6); a threaded cylinder (8) is fixedly installed on the top surface of each guide sleeve (5) through a support, and a threaded column (9) is installed in the threaded cylinder (8) in a radial rotating mode along the lifting platform (4); the inner end of the threaded column (9) is rotationally matched with the outer side wall of the bearing plate (7), and a gear column (10) coaxial with the threaded column is fixedly arranged at the outer end of the threaded column (9); the top surface of each guide sleeve (5) is rotatably provided with a mounting shaft (11) parallel to the threaded column (9) through a bracket; a first gear (12) which is meshed with the gear column (10) is fixedly arranged at the inner end of the mounting shaft (11), and a bevel gear (13) is fixedly arranged at the outer end of the mounting shaft (11); a bevel gear ring (14) which is coaxial with the lifting platform (4) and is meshed with the bevel gear (13) is horizontally and rotatably arranged on the top surface of the lifting platform;

the positioning mechanism (2) comprises three door-shaped frames (21), an arc-shaped plate (22) and three lead screws (23); the three door-shaped frames (21) are uniformly distributed along the circumferential direction of the bottom plate (1); the door-shaped frame (21) horizontally penetrates through the bottom plate (1) along the radial direction of the bottom plate (1) and is in sliding fit with the bottom plate (1); the inner end of each door-shaped frame (21) is fixedly provided with an arc-shaped plate (22) which is matched with the outer side wall of the supporting seat of the vertical stainless steel chemical storage tank; each lead screw (23) horizontally penetrates through one door-shaped frame (21) along the radial direction of the bottom plate (1), and the lead screws (23) are rotationally matched with the door-shaped frames (21) through threads; the inner end of the screw rod (23) is in running fit with the outer side wall of the bottom plate (1);

the lifting mechanism (3) comprises a guide cylinder (31), a lifting column (32), a return spring (33), a piston cylinder (34), a piston rod (35), a first oil groove (36) and a second oil groove (37); the guide cylinder (31) is vertically and fixedly installed on the top surface of the bottom plate (1), a lifting column (32) is vertically and slidably matched in the guide cylinder (31), and a return spring (33) is vertically and fixedly installed at the bottom end of the lifting column (32); a piston cylinder (34) is fixedly arranged on the outer side wall of the guide cylinder (31), and a piston rod (35) is in sliding fit with the piston cylinder (34); a first oil groove (36) is formed in the side wall of the guide cylinder (31), and a second oil groove (37) communicated with the first oil groove (36) is formed in the end part of the piston cylinder (34); the inner cavities of the guide cylinder (31) and the piston cylinder (34) are communicated through a first oil groove (36) and a second oil groove (37); the first oil groove (36), the second oil groove (37) and the inner cavities of the guide cylinder (31) and the piston cylinder (34) are filled with hydraulic oil.

2. The guide mounting fixture for the vertical stainless steel chemical storage tank according to claim 1, characterized in that: the first oil groove (36) and the second oil groove (37) are in a horizontal conical structure.

3. The guide mounting fixture for the vertical stainless steel chemical storage tank, according to claim 1, is characterized in that: the bearing plate (7) comprises a vertical section (71) and an arc-shaped section (72), the vertical section (71) is matched with the outer side wall of the vertical stainless steel chemical storage tank, and the arc-shaped section (72) is matched with the bottom surface of the vertical stainless steel chemical storage tank; a plurality of vertical rubber strips (73) are uniformly and fixedly arranged on the inner side wall of the vertical section (71); the inner side wall of the arc-shaped section (72) is uniformly provided with balls (74).

4. The guide mounting fixture for the vertical stainless steel chemical storage tank, according to claim 1, is characterized in that: the outer side wall of the bevel gear ring (14) is horizontally and fixedly provided with an outer gear ring (15) coaxial with the bevel gear ring, and the top surface of the lifting platform (4) is horizontally and rotatably provided with a second gear (16) meshed with the outer gear ring (15); a fixture block (17) which is matched with the transmission gear of the second gear (16) is horizontally and slidably arranged on the top surface of the lifting platform (4), and an elastic telescopic rod (18) is arranged at the end part of the fixture block (17).

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