Mounting mechanism of large-specification single-screw pump stator

Abstract

The utility model discloses an installation mechanism of a large-specification single-screw pump stator. The installation mechanism comprises a base plate, one side of the base plate is fixedly connected with a fixing plate, the fixing plate is provided with a driving mechanism, the base plate is provided with a fixing rack, a lead screw is arranged in the fixing rack, and the driving mechanism is connected with the lead screw. The screw rod is provided with an installation fixing frame, the installation fixing frame is matched with the screw rod, the installation fixing frame is connected with a clamping device, and the installation mechanism of the large-specification single-screw pump stator is high in flexibility, convenient to assemble and high in safety.

Description

Technical Field

[0001] The utility model belongs to the field of single screw pumps, and specifically relates to a mounting mechanism for a large-size single screw pump stator. Background Art

[0002] The single screw pump is a rotor type positive displacement pump, which relies on the meshing of the screw and the bushing to produce volume changes between the suction chamber and the discharge chamber to transfer materials. It is an internal meshing closed single screw pump, and the main working parts are composed of a bushing (stator) with a double-headed spiral cavity and a single-headed spiral screw (rotor) meshing with it in the stator cavity. When the input shaft drives the rotor to make planetary rotation around the center of the stator through the universal joint, the stator-rotor pair continuously meshes to form a sealed cavity, and these sealed cavities move axially at a uniform speed without changing the volume, and the transmission medium is transmitted from the suction end to the output end through the stator-rotor pair. The medium sucked into the closed cavity flows through the stator without being stirred or damaged.

[0003] The stator of a single screw pump is composed of an external steel pipe and an internal rubber. It is one of the key parts of a single screw pump. The fit between the stator and the rotor in a single screw pump is similar to a threaded fit. During installation, the worker rotates the stator or rotor, and the two move axially relative to each other to install or remove it in place. In a small-sized single screw pump, it is quick and simple to manually rotate the stator or rotor to install the stator. However, for large-sized single screw pumps, the length and cross-section of the stator are large, and the length often exceeds 1 meter. When installing the stator of a large-sized single screw pump, one worker is no longer able to install it. At this time, it is often necessary for more than one person to cooperate with each other and even to lift the stator with the help of a crane. Since axial movement is required when installing and removing the stator, the stator suspended in the air is still difficult to assemble. Using conventional methods to disassemble and assemble the stator is not only time-consuming and labor-intensive, but also poses certain safety hazards.

[0004] The utility model patent with publication number CN219932445U was disclosed on October 31, 2023. The name is a single-screw pump stator mounting structure. The single-screw pump stator mounting structure includes a barrel, and the two ends of the barrel are respectively formed with a first flange and a second flange. The first flange extends inward to form an annular portion. A fixed barrel assembly is detachably provided in the barrel, and a stator barrel is provided in the fixed barrel assembly. The two ends of the stator barrel extend outward to form an extension. A clamping ring is detachably provided at the opening of the second flange, one extension is fitted with the annular portion, and the other extension is fitted with the clamping ring. The use process of the single-screw pump stator mounting structure is not convenient enough, and it is not suitable for the installation of large-sized single-screw pump stators. Utility Model Content

[0005] The utility model aims to provide a mounting mechanism for a large-size single-screw pump stator with high flexibility, convenient assembly and high safety in view of the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The mounting mechanism of the large-size single-screw pump stator includes a chassis, a fixing plate fixedly connected to one side of the chassis, a driving mechanism provided on the fixing plate, a fixing frame provided on the chassis, a screw rod provided in the fixing frame, and the driving mechanism connected to the screw rod; a mounting fixing frame is provided on the screw rod, the mounting fixing frame cooperates with the screw rod, and a clamping device is connected to the mounting fixing frame.

[0008] The driving mechanism includes a first motor, which is arranged on a fixed plate, connected to a first coupling, connected to a worm, a worm wheel is arranged in the chassis, the worm wheel cooperates with the worm, and the bottom of the screw rod extends into the chassis; a transmission key is arranged at the bottom of the screw rod, a key slot is arranged in the middle of the worm wheel, and the key slot cooperates with the transmission key.

[0009] The camming device comprises a clamp, wherein the end of the mounting and fixing frame is provided with a mounting and positioning plate, one side of the mounting and positioning plate is fixedly connected to a supporting plate, the supporting plate is provided with a second motor, the second motor is connected to a second coupling, the second coupling is connected to a connecting shaft, and the end of the connecting shaft is provided with a driving gear. The mounting and fixing frame is provided with a mounting and positioning plate at one end, and the first gear rod and the second gear rod are movably connected on the mounting and positioning plate, the first gear rod and the second gear rod are symmetrically arranged, the contact ends of the first gear rod and the second gear rod are provided with transmission teeth, the first gear rod and the second gear rod cooperate through the transmission teeth, the mounting and positioning plate is provided with a through hole, the driving gear passes through the through hole and cooperates with the transmission teeth; the mounting and positioning plate is connected to a connecting rod with the clamp; the clamp is movably connected to the ends of the first gear rod and the second gear rod, and the clamp is symmetrically arranged.

[0010] A mounting seat is provided on one side of the chassis, a guide rail is provided under the chassis, the guide rail is arranged parallel to the mounting seat, a guide groove is provided on the guide rail, a roller is provided at the bottom of the chassis, the roller and the guide groove are arranged in pairs, and the roller is arranged on the guide groove.

[0011] A blocking block is arranged on the guide rail, a protrusion is arranged at the bottom of the blocking block, the protrusion is matched with the guide groove, and the blocking block is arranged on both sides of the chassis.

[0012] The end of the mounting and fixing frame is provided with a rivet, and the end of the mounting and positioning plate is fixedly connected to the mounting and fixing frame through the rivet, and the rivets are arranged in pairs; the end of the clamp is provided with fixing teeth, and the fixing teeth are arranged at equal intervals.

[0013] The installation positioning plate and the clamp are both double-layer structures, and the connecting rods are arranged in pairs.

[0014] A base is provided on the mounting seat, the side of the base is a channel steel structure, the single-screw pump is arranged on the base, and a control motor is provided at the end of the single-screw pump; reinforcing rods are provided on both sides of the fixed plate, the reinforcing rods are arranged obliquely, and the reinforcing rods connect the chassis and the fixed plate.

[0015] The two ends of the worm are provided with connecting flanges, and the connecting flanges are arranged at the ends of the chassis; a fixed frame is arranged outside the screw rod, and a limit seat is arranged at the bottom of the screw rod, and the limit seat is located in the middle of the upper end of the chassis.

[0016] The technical effect of the utility model is as follows: the installation mechanism of the stator of a large-sized single-screw pump of the utility model is adopted to solve the problem that the stator in the large-sized single-screw pump is difficult to install and disassemble; the lifting and lowering of the clamp is driven from the horizontal direction by arranging the worm gear transmission and the screw transmission mechanism; the horizontal position adjustment of the clamp is realized by arranging the guide rail, and the problem of difficulty in assembling the large-sized stator is solved; at the same time, the clamp is clamped or loosened by driving the clamping device, which replaces the cumbersome and dangerous manual operation, facilitates the alignment and installation process of the stator and the rotor, reduces the difficulty of assembly, eliminates safety hazards, and improves the safety of stator installation.

[0017] The mounting mechanism has high flexibility and freedom, can adjust its position at any time, and has a wide range of uses. It can be applied not only to single screw pumps equipped with different mounting seats, but also to inlet cavities. Moreover, the structure is reasonably designed, parts are easy to install, and the mechanism has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] This specification includes the following drawings, which show the following contents:

[0019] Figure 1 It is a three-dimensional installation schematic diagram of the installation mechanism of the stator of a large-size single-screw pump of the utility model;

[0020] Figure 2 This is a front view of the installation of the installation mechanism of the large-size single screw pump stator of the utility model;

[0021] Figure 3-1 to Figure 3-4 It is a structural schematic diagram of the installation mechanism of the stator of a large-size single-screw pump of the utility model;

[0022] Figure 4 It is an exploded view of the clamping device of the utility model;

[0023] Figure 5-1 and Figure 5-2 It is a structural schematic diagram of the clamping device of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the blocking block of the utility model;

[0025] Figure 7-1 and Figure 7-2 It is a structural schematic diagram of a single screw pump of the utility model.

[0026] The markings in the figure are: 1. outlet short circuit; 2. stator; 3. rotor; 4. inlet cavity; 5. bearing seat; 6. coupling; 7. safety cover; 8. control motor; 9. base; 10. mounting seat; 11. guide rail; 1101. guide groove; 1102. blocking block; 1103. protrusion; 12. clamping device; 1201. clamp; 1202. connecting rod; 1203. first gear rod; 1204. second gear rod; 1205. driving gear; 1206. installation positioning plate; 1207. second motor; 1208. second coupling device; 1209, connecting shaft; 1210, transmission tooth; 1211, fixed tooth; 1212, rivet; 1213, through hole; 1214, support plate; 13, screw rod; 1301, chassis; 1302, mounting bracket; 1303, fixed frame; 1304, first motor; 1305, first coupling; 1306, worm; 1307, fixed plate; 1308, worm wheel; 1309, reinforcing rod; 1310, transmission key; 1311, keyway; 1312, connecting flange; 1313, limit seat; 1314, roller. DETAILED DESCRIPTION

[0027] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of the embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0028] like Figure 1 to Figure 7-2 As shown, the installation mechanism of the large-size single-screw pump stator includes a chassis 1301, a fixing plate 1307 is fixedly connected to one side of the chassis 1301, a driving mechanism is provided on the fixing plate 1307, a fixed frame 1303 is provided on the chassis 1301, a screw rod 13 is provided in the fixed frame 1303, and the driving mechanism is connected to the screw rod 13; a mounting bracket 1302 is provided on the screw rod 13, the mounting bracket 1302 cooperates with the screw rod 13, and the mounting bracket 1302 is connected to the clamping device 12.

[0029] The clamping device 12 is used to clamp the stator 2, and the screw rod 13 is used to transmit the up and down movement of the clamping device 12. The above components are used to realize the position movement of the entire device in two directions. The chassis 1301 wheel system and the guide rail 11 realize ground movement, realize the clamping of the stator 2 and the lifting and horizontal movement of the stator 2 after clamping. When the single-screw pump rotates the rotor 3 to install or remove the stator 2, the overall mechanism can maintain relative movement with the stator 2, which facilitates the alignment and installation process of the stator 2 and the rotor 3. At the same time, it also achieves the effect of being able to quickly move to the corresponding position when the clamping device 12 is needed to clamp other objects.

[0030] like Figure 3-1 to Figure 3-4 As shown, the driving mechanism includes a first motor 1304, which is arranged on a fixed plate 1307, and is connected to a first coupling 1305, which is connected to a worm 1306. A worm wheel 1308 is arranged in the chassis 1301, and the worm wheel 1308 cooperates with the worm 1306. The bottom of the screw rod 13 extends into the chassis 1301; a transmission key 1310 is arranged at the bottom of the screw rod 13, and a keyway 1311 is arranged in the middle of the worm wheel 1308, and the keyway 1311 cooperates with the transmission key 1310. The bottom shaft of the screw rod 13 is connected to the worm wheel 1308 through the keyway 1311, so that the rotation of the worm wheel 1308 is transmitted to the screw rod 13, so as to realize the rotation of the screw rod 13. The internal circular hole part of the mounting bracket 1302 is processed into a trapezoidal thread and has a ball arrangement, which is installed and matched with the screw rod 13 to realize the up and down translation movement of the clamping device 12. The use of a worm gear transmission allows the first motor 1304 to be placed horizontally, thereby achieving the purpose of being able to drive the entire device to move even if the first motor 1304 is placed horizontally, reducing the design difficulty of the transmission parts of the first motor 1304, the first coupling 1305, and the worm 1306, while ensuring that the installation position of the above components is stable and flexible.

[0031] like Figure 4 to Figure 5-2As shown, the clamping device 12 includes a clamp 1201, a mounting and positioning plate 1206 is provided at the end of the mounting and fixing frame 1302, a support plate 1214 is fixedly connected to one side of the mounting and positioning plate 1206, a second motor 1207 is provided on the support plate 1214, the second motor 1207 is connected to a second coupling 1208, the second coupling 1208 is connected to a linkage shaft 1209, a driving gear 1205 is provided at the end of the linkage shaft 1209, a mounting and positioning plate 1206 is provided at one end of the mounting and fixing frame 1302, a first gear rod 1203 and a second gear rod 1204 are movably connected to the mounting and positioning plate 1206, and the first gear The rod 1203 and the second gear rod 1204 are symmetrically arranged, and the contact ends of the first gear rod 1203 and the second gear rod 1204 are provided with transmission teeth 1210, and the first gear rod 1203 and the second gear rod 1204 cooperate with each other through the transmission teeth 1210. The installation positioning plate 1206 is provided with a through hole 1213, and the driving gear 1205 passes through the through hole 1213 and cooperates with the transmission teeth 1210; the installation positioning plate 1206 and the clamp 1201 are connected with a connecting rod 1202; the clamp 1201 is movably connected to the ends of the first gear rod 1203 and the second gear rod 1204, and the clamp 1201 is symmetrically arranged. When the second motor 1207 drives the second coupling 1208 and the linkage shaft 1209 to move, because the linkage shaft 1209 and the driving gear 1205 are connected through the keyway 1311, the driving gear 1205 will rotate accordingly. The driving gear 1205 and the second gear rod 1204 mesh with each other. When the driving gear 1205 is driven to rotate, the second gear rod 1204 is also driven to rotate in the opposite direction to the driving gear 1205. Since the contact part between the first gear rod 1203 and the second gear rod 1204 is also a meshing gear, the first gear rod 1203 and the second gear rod 1204 can rotate relative to or oppositely at the same time, so that the purpose of driving the two sets of relative clamps 1201 to produce relative or opposite movements by controlling the rotation direction of the second motor 1207 can be achieved, that is, the purpose of grasping or loosening the stator 2 is achieved. Among them, the second motor 1207 is a control type motor, so the speed of the clamping or loosening process of the clamp 1201 can also be achieved by adjusting the motor output speed.

[0032] like Figure 1As shown, a mounting seat 10 is provided on one side of the chassis 1301, and a guide rail 11 is provided below the chassis 1301. The guide rail 11 is arranged parallel to the mounting seat 10, and a guide groove 1101 is provided on the guide rail 11. A roller 1314 is provided at the bottom of the chassis 1301. The roller 1314 and the guide groove 1101 are arranged in pairs, and the roller 1314 is arranged on the guide groove 1101. The roller 1314 moves along the guide groove 1101, and the chassis 1301 can drive the entire device to adjust the horizontal position. The movement resistance of the roller 1314 is small, and it can move synchronously with the cooperation of the stator 2 and the rotor 3, which facilitates the alignment process of the stator 2 and the rotor 3. The paired guide grooves 1101 can accurately limit the position adjustment direction of the device, which is conducive to ensuring that the stator 2 is accurately in the axial direction of the rotor 3 when installed.

[0033] like Figure 6 As shown, a blocking block 1102 is provided on the guide rail 11, and a protrusion 1103 is provided at the bottom of the blocking block 1102, and the protrusion 1103 is matched with the guide groove 1101, and the blocking blocks 1102 are arranged on both sides of the chassis 1301. The blocking blocks 1102 have a certain weight, and the chassis 1301 is limited and blocked by two or more blocking blocks 1102 to prevent the chassis 1301 from moving along the guide rail 11, which is conducive to the accurate installation of the stator 2. The stator 2 is installed or removed. In order to keep the chassis 1301 and the guide rail 11 in a relatively static state, the blocking blocks 1102 can be placed in the front and rear directions of the chassis 1301.

[0034] like Figure 4 As shown, a rivet 1212 is provided at the end of the mounting bracket 1302, and the end of the mounting positioning plate 1206 is fixedly connected to the mounting bracket 1302 through the rivet 1212, and the rivets 1212 are arranged in pairs; a fixing tooth 1211 is provided at the end of the clamp 1201, and the fixing teeth 1211 are arranged at equal intervals. The port on one side of the mounting bracket 1302 is a structure connected to the mounting positioning plate 1206. The mounting positioning plate 1206 is fixed by riveting with two rivets 1212, which can improve its bearing capacity, so that it is suitable for the installation process of a large-sized stator 2. The fixing teeth 1211 arranged at equal intervals are used to increase the external friction between the clamp 1201 and the stator 2 to ensure stability during installation and position adjustment.

[0035] like Figure 4 to Figure 5-2As shown, the installation positioning plate 1206 and the clamp 1201 are both double-layer structures, and the connecting rods 1202 are arranged in pairs. The installation positioning plate 1206 with a double-layer structure improves its structural strength, and the clamp 1201 with a double-layer structure expands the contact area with the stator 2 of the single-screw pump, thereby expanding the clamping area, reducing the shaking of the stator 2 after being clamped, and improving the clamping stability; three connecting rods 1202 are arranged between the installation positioning plate 1206 and the clamp 1201, wherein the two ends of a pair of connecting rods 1202 are respectively connected to the middle part of the clamp 1201 and the end of the installation positioning plate 1206, and another connecting rod 1202 is used as a support member for the first gear rod 1203 and the second gear rod 1204 and is arranged on the other side of the installation positioning plate 1206. The above connecting rods 1202 not only improve the structural strength of the clamping device 12, but also further provide support for the clamping process of the clamp 1201, so that the force on both sides of the installation positioning plate 1206 is uniform and consistent, thereby improving stability.

[0036] like Figure 1 As shown, a base 9 is provided on the mounting seat 10, and the side of the base 9 is a channel steel structure. The single screw pump is arranged on the base 9, and a control motor 8 is arranged at the end of the single screw pump; reinforcing rods 1309 are arranged on both sides of the fixed plate 1307, and the reinforcing rods 1309 are arranged obliquely, and the reinforcing rods 1309 connect the chassis 1301 and the fixed plate 1307. The control motor 8 is connected with the coupling 6, the bearing seat 5 and the inlet cavity 4 in sequence, and the coupling 6 is provided with a safety cover 7 outside. The rotor 3 is arranged in the inlet cavity 4, and the end of the stator 2 is provided with an outlet short circuit 14 to connect the pipeline. The channel steel structure has high strength and is not easy to deform. The single screw pump can be placed on the base 9 to maintain a horizontal state, ensuring that the stator 2 can be accurately aligned with the rotor 3. The reinforcing rod 1309 provides support for the fixed plate 1307, ensuring that the fixed plate 1307 and the first motor 1304 installed thereon are in a horizontal state, ensuring that the power output of the first motor 1304 is stable, and ensuring the smooth transmission.

[0037] like Figure 3-1 to Figure 3-4 As shown, two ends of the worm 1306 are provided with connecting flanges 1312, and the connecting flanges 1312 are arranged at the ends of the chassis 1301; a fixed frame 1303 is arranged outside the screw 13, and a limit seat 1313 is arranged at the bottom of the screw 13, and the limit seat 1313 is located in the middle of the upper end of the chassis 1301. The chassis 1301 and the fixed frame 1303 provide protection for the screw 13 transmission module and the worm gear transmission module. The chassis 1301 is divided into a two-layer structure, which can facilitate the installation of the worm wheel 1308 and the worm 1306; the connecting flange 1312 is located between the two layers of the chassis 1301 and outside the chassis 1301, and the installed worm 1306 can be placed in a horizontal position to ensure that the worm 1306 can accurately mesh with the gear teeth of the worm wheel 1308, thereby ensuring the stability of the transmission; the limit seat 1313 can limit the installation position of the screw 13 to prevent the screw 13 from being assembled in the wrong position.

[0038] like Figure 1 and Figure 2 As shown, the installation process of the stator 2 is as follows: first, the entire device is moved to a suitable position along the guide rail 11, and the blocking block 1102 is used to block the side of the chassis 1301 to keep it in a relatively static state, and the second motor 1207 is started. The output shaft of the second motor 1207 drives the second coupling 1208 and the linkage shaft 1209 to rotate, and the driving gear 1205 rotates synchronously with the linkage shaft 1209. The rotation of the driving gear 1205 drives the second gear rod 1204 to rotate through the gear teeth. Since the first gear rod 1203 and the second gear rod 1204 cooperate through the transmission teeth 1210, the two gear rods form a relative motion, which in turn drives the rotation of the connecting rod 1202 and the clamp 1201, and the stator 2 is clamped by two sets of clamps 1201; after the stator 2 is clamped, the first motor 130 is started. 4. The output shaft of the first motor 1304 drives the worm 1306 to rotate through the first coupling 1305. The worm 1306 cooperates with the worm wheel 1308. The worm wheel 1308 drives the screw 13 to rotate through the key transmission, and the horizontal transmission is converted into the vertical transmission. The mounting bracket 1302 cooperates with the screw 13, and the clamping device 12 follows the mounting bracket 1302 to move up and down along the screw 13. When the clamping device 12 has clamped the stator 2 and transmitted it to a relative height position with the single-screw pump rotor 3, the coupling 6, the single-screw pump drive shaft and the universal joint are driven to move by starting the control motor 8, and then the rotor 3 is driven to move, so that the stator 2 is slowly installed and matched with the rotor 3 and connected through the flange. When it needs to be removed, the control motor 8 can be rotated in the opposite direction to slowly disassemble the stator 2. During the loading and unloading process, the four rollers 1314 of the chassis 1301 cooperate with the guide rail 11 to achieve relative movement. When the control motor 8 drives the rotor 3 to move, the entire mechanism forms a relatively static state with the stator 2 along with the movement generated during the installation and disassembly of the stator 2.

[0039] The installation mechanism of the stator of the large-sized single-screw pump solves the problem that the stator 2 in the large-sized single-screw pump is difficult to install and disassemble. By setting the worm gear transmission and the screw 13 transmission mechanism, the lifting and lowering of the clamp 1201 is driven from the horizontal direction. The horizontal position adjustment of the clamp 1201 is realized by setting the guide rail 11, which solves the problem of the difficulty in assembling the large-sized stator 2. At the same time, the clamp 1201 is clamped or loosened by driving the clamping device 12, which replaces the cumbersome and dangerous manual operation, facilitates the alignment and installation process of the stator 2 and the rotor 3, reduces the difficulty of assembly, eliminates safety hazards, and improves the safety of the installation of the stator 2. The installation mechanism has high flexibility and freedom, can adjust the position at any time, and has a wide range of use. It can be applied not only to single-screw pumps with different mounting seats 10, but also to the inlet cavity 4. In addition, the structural design is reasonable, the parts are easy to install, and it has good practicality.

[0040] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A mounting mechanism for a large-size single-screw pump stator, characterized in that: The invention comprises a chassis (1301), a fixing plate (1307) is fixedly connected to one side of the chassis (1301), a driving mechanism is provided on the fixing plate (1307), a fixing frame (1303) is provided on the chassis (1301), a screw rod (13) is provided inside the fixing frame (1303), and the driving mechanism is connected to the screw rod (13); a mounting frame (1302) is provided on the screw rod (13), the mounting frame (1302) cooperates with the screw rod (13), and the mounting frame (1302) is connected to a clamping device (12).

2. The installation mechanism for a large-size single-screw pump stator according to claim 1, characterized in that: The driving mechanism comprises a first motor (1304), wherein the first motor (1304) is arranged on a fixed plate (1307), the first motor (1304) is connected to a first coupling (1305), the first coupling (1305) is connected to a worm (1306), a worm wheel (1308) is arranged in the chassis (1301), the worm wheel (1308) cooperates with the worm (1306), the bottom of the screw rod (13) extends into the chassis (1301); a transmission key (1310) is arranged at the bottom of the screw rod (13), a key slot (1311) is arranged in the middle of the worm wheel (1308), and the key slot (1311) cooperates with the transmission key (1310).

3. The installation mechanism for a large-size single-screw pump stator according to claim 2 is characterized in that: The clamping device (12) comprises a clamp (1201), an installation positioning plate (1206) is provided at the end of the installation fixing frame (1302), one side of the installation positioning plate (1206) is fixedly connected to a support plate (1214), a second motor (1207) is provided on the support plate (1214), the second motor (1207) is connected to a second coupling (1208), the second coupling (1208) is connected to a linkage shaft (1209), a driving gear (1205) is provided at the end of the linkage shaft (1209), one end of the installation fixing frame (1302) is provided with an installation positioning plate (1206), a first gear rod (1203) and a second gear rod (1204) are movably connected to the installation positioning plate (1206), the first gear rod (1203) and the second gear rod (1204) are movably connected to the installation positioning plate (1206), The wheel rod (1203) and the second gear rod (1204) are symmetrically arranged, and the contact ends of the first gear rod (1203) and the second gear rod (1204) are provided with transmission teeth (1210), and the first gear rod (1203) and the second gear rod (1204) cooperate with each other through the transmission teeth (1210). The installation positioning plate (1206) is provided with a through hole (1213), and the driving gear (1205) passes through the through hole (1213) and cooperates with the transmission teeth (1210); the installation positioning plate (1206) and the clamp (1201) are connected with a connecting rod (1202); the clamp (1201) is movably connected to the ends of the first gear rod (1203) and the second gear rod (1204), and the clamp (1201) is symmetrically arranged.

4. The installation mechanism for a large-size single-screw pump stator according to claim 3 is characterized in that: A mounting seat (10) is provided on one side of the chassis (1301), a guide rail (11) is provided below the chassis (1301), the guide rail (11) is arranged parallel to the mounting seat (10), a guide groove (1101) is provided on the guide rail (11), a roller (1314) is provided at the bottom of the chassis (1301), the roller (1314) and the guide groove (1101) are arranged in pairs, and the roller (1314) is arranged on the guide groove (1101).

5. The installation mechanism for a large-size single-screw pump stator according to claim 4 is characterized in that: The guide rail (11) is provided with a blocking block (1102), the bottom of the blocking block (1102) is provided with a protrusion (1103), the protrusion (1103) is matched with the guide groove (1101), and the blocking block (1102) is arranged on both sides of the chassis (1301).

6. The installation mechanism for a large-size single-screw pump stator according to claim 3 is characterized in that: The end of the mounting frame (1302) is provided with a rivet (1212), and the end of the mounting positioning plate (1206) is fixedly connected to the mounting frame (1302) through the rivet (1212), and the rivets (1212) are arranged in pairs; the end of the clamp (1201) is provided with fixing teeth (1211), and the fixing teeth (1211) are arranged at equal intervals.

7. The installation mechanism for a large-size single-screw pump stator according to claim 6, characterized in that: The installation positioning plate (1206) and the clamp (1201) are both double-layer structures, and the connecting rods (1202) are arranged in pairs.

8. The mounting mechanism for a large-size single-screw pump stator according to claim 4, characterized in that: The mounting seat (10) is provided with a base (9), the side of the base (9) is a channel steel structure, the single screw pump is arranged on the base (9), and the end of the single screw pump is provided with a control motor (8); reinforcing rods (1309) are provided on both sides of the fixing plate (1307), the reinforcing rods (1309) are arranged obliquely, and the reinforcing rods (1309) connect the chassis (1301) and the fixing plate (1307).

9. The mounting mechanism for a large-size single-screw pump stator according to any one of claims 2 to 8, characterized in that: The two ends of the worm (1306) are provided with connecting flanges (1312), and the connecting flanges (1312) are arranged at the ends of the chassis (1301); the outside of the screw rod (13) is provided with a fixed frame (1303), and the bottom of the screw rod (13) is provided with a limit seat (1313), and the limit seat (1313) is located in the middle of the upper end of the chassis (1301).

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