Electric wrench sleeve with pull rod nut dismounting and mounting and grease brushing functions

Abstract

The utility model discloses an electric wrench socket with pull-rod nut dismounting and mounting and grease brushing functions, which comprises a hollow fixed shell I and a hollow fixed shell II which are correspondingly buckled with each other, a gear transmission component is fixedly arranged in a transmission cavity enclosed by the fixed shell I and the fixed shell II, a nut socket is arranged on the front end surface of the fixed shell II, and a nut is arranged in the nut socket. Multiple stages of plum blossom sleeves which are mutually nested are installed in the nut sleeve, an oil brushing assembly is installed at the front end of the nut sleeve, an electric wrench adapter is installed on the rear end face of the first fixing shell, and one end of the electric wrench adapter is connected with the output shaft end of an electric wrench. And the other end extends into the transmission cavity and is connected with a gear shaft of the gear transmission assembly. When the detachable plate type heat exchanger pull rod is disassembled and assembled, the nut does not need to be screwed manually, and the nut assembling efficiency can be improved by connecting the sleeve with a common electric wrench; when the nut is screwed in, grease can be evenly smeared through the sleeve, and the workload of operators is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to an electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter. Background Art

[0002] At present, detachable plate heat exchangers have been widely used in many industrial fields, such as military industry, nuclear power, shipbuilding, petrochemical industry, etc.

[0003] However, the clamping studs of the pull rods of the detachable plate heat exchanger are generally long and numerous. The pull rod fasteners must be disassembled when the plate bundle of the plate heat exchanger is clamped or loosened. Among the current nut disassembly tools, patent CN 111805460 A discloses a stepless sleeve, including a stepless sleeve assembly, a toggle assembly, a cover assembly and a locking assembly. The toggle assembly is arranged above the stepless sleeve assembly, the cover assembly is arranged above the toggle assembly, and the locking assembly is arranged above the cover assembly. By rotating the spiral turntable in the stepless sleeve assembly, the spiral turntable can drive the six sliding plates to extend and retract.

[0004] Although the above patented structure can clamp nuts of different sizes, so that the socket can disassemble and assemble nuts of different sizes and models, and there is no need to carry multiple socket wrenches of different specifications; however, when used, it is limited to the disassembly and assembly operation of the nuts at the end, and the tie rod nut in the detachable plate heat exchanger has a long screwing stroke and a large workload, and the tie rod fasteners have different specifications due to different equipment models. The screwing of the tie rod nut and the application of butter both require manual operation, which has problems such as low efficiency and uneven butter application.

[0005] To this end, the present application provides a sleeve that can be used with an electric wrench to tighten the nut when disassembling and assembling the tie rod nut of a detachable plate heat exchanger, and can be coated with butter, thereby improving the efficiency of disassembling and assembling the tie rod. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and to provide an electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter, so that the nut does not need to be manually screwed when the tie rod of a detachable plate heat exchanger is disassembled and assembled, and the socket can be used to connect a commonly used electric wrench to improve the efficiency of nut assembly; while the nut is screwed in, butter can be evenly applied through the socket, which greatly reduces the workload of the operator.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter, comprises a hollow fixed shell one and a fixed shell two which correspond to each other and snap fit together, a gear transmission assembly is installed and fixed in a transmission chamber surrounded by the fixed shell one and the fixed shell two, a nut sleeve for clamping and fixing a nut to be tightened is installed on the front end face of the fixed shell two, a multi-stage plum blossom sleeve nested with each other is installed in the nut sleeve, an oil brushing assembly is installed on the front end portion of the nut sleeve, an electric wrench adapter is installed on the rear end face of the fixed shell one, one end of the electric wrench adapter is connected to the output shaft end of the electric wrench, and the other end extends into the transmission chamber and is tangent to be connected to the gear shaft of the gear transmission assembly.

[0009] The gear transmission assembly includes a gear shaft, a gear is installed in the middle of the gear shaft, the gear is meshed and driven with a gear on a gear hub on one side, the gear hub is rotatably mounted by a thin-walled bearing, and corresponding axial holes are respectively provided on the connecting end surfaces of the gear hub and the nut sleeve, and the axial holes are connected by bolts and nuts to achieve the connection between the gear hub and the nut sleeve.

[0010] The two ends of the gear shaft are rotatably mounted in the transmission chamber through positioning bearing 1 and positioning bearing 2 respectively. The positioning bearing 1 and positioning bearing 2 are respectively correspondingly clamped in the clamping seats of fixed shell 1 and fixed shell 2, and the thin-walled bearing is clamped and fixed on the clamping cavity in fixed shell 2.

[0011] The outer rings of the multi-stage plum blossom sleeves are all plum blossom structures, which are nested and matched with the inner holes of the plum blossoms of the previous stage.

[0012] The multi-stage plum blossom sleeve includes an M48 plum blossom sleeve, an M42 plum blossom sleeve, an M36 plum blossom sleeve, and an M30 plum blossom sleeve which are sequentially installed from the inside to the outside. The M48 plum blossom sleeve is installed in a nut sleeve, and a plum blossom-shaped through hole M56 is provided in the nut sleeve.

[0013] The oil brush assembly includes an oil brush sleeve which is fixedly mounted on the front end of the nut sleeve, springs are fixedly mounted on the circumferential positions of the oil brush sleeve, oil brushes are mounted on the springs, and the oil brush heads are radially arranged and fit the outer surface of the nut stud to be tightened.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present application uses an electric wrench adapter, which only needs to be driven by a common electric wrench when in use, replacing the manual rotation of the nut. With the structure of the oil brushing assembly at the end, the synchronous operation of screwing in and applying butter during nut assembly is realized, thereby improving the operating efficiency of the nut screwing and the uniformity of the butter brushing;

[0017] 2. The hollow design of the sleeve in the present application ensures that it is not limited by the length of the pull rod when in use, and is equipped with a variety of specifications of nut plum blossom sleeves, so that the sleeve can be used for different specifications of commonly used pull rods;

[0018] 3. The main parts of the sleeve of this application can be made of nylon and aluminum alloy, and can be made by 3D printing, achieving the advantages of low cost and light use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0021] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the utility model when being disassembled and assembled for use.

[0023] Reference numerals:

[0024] 1. Electric wrench adapter; 2. Fixed shell 1; 3. Gear hub; 4. Positioning bearing 1; 5. Gear; 6. Thin-walled bearing; 7. Positioning bearing 2; 8. Fixed shell 2; 9. Nut sleeve; 10. M48 plum blossom sleeve; 11. M42 plum blossom sleeve; 12. M36 plum blossom sleeve; 13. M30 plum blossom sleeve; 14. Oil brush sleeve; 15. Spring; 16. Oil brush; 17. Electric wrench; 18. Clamping stud; 19. Pull rod nut. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See attached Figure 1-3 ;

[0027] An electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter, comprises a hollow fixed shell 2 and a fixed shell 8 which are corresponding to each other and snap fit together, a gear transmission assembly is installed and fixed in a transmission chamber surrounded by the fixed shell 2 and the fixed shell 8, a nut sleeve 9 for clamping and fixing the nut to be tightened is installed on the front end face of the fixed shell 8, a multi-stage plum blossom sleeve nested with each other is installed in the nut sleeve 9, an oil brushing assembly is installed on the front end portion of the nut sleeve 9, an electric wrench adapter 1 is installed on the rear end face of the fixed shell 2, one end of the electric wrench adapter 1 is connected to the output shaft end of the electric wrench, and the other end extends into the transmission chamber and is tangent to be connected to the gear shaft of the gear transmission assembly. Through the electric wrench adapter, you only need to use a common electric wrench to drive it, instead of manually rotating the nut. Combined with the structure of the oil brush assembly at the end, the simultaneous operation of screwing in and applying butter during nut assembly is achieved, which improves the efficiency of nut screwing and the uniformity of butter brushing. Moreover, the materials of each part can be nylon and aluminum alloy, and can be produced through 3D printing, achieving the advantages of low cost and light use.

[0028] Furthermore, the gear transmission assembly includes a gear shaft, a gear 5 is installed in the middle of the gear shaft, the gear 5 is meshed and transmission-connected with the gear on the gear hub 3 on one side, the gear hub 3 is supported and rotatably installed by a thin-walled bearing 6, and the connecting end faces of the gear hub 3 and the nut sleeve 9 are respectively provided with corresponding axial holes, and the axial holes are connected by bolts and nuts to realize the connection between the gear hub 3 and the nut sleeve 9. Through holes for the nut studs to be screwed are respectively provided in the fixed shell 1 2 and the fixed shell 2 8 and the gear hub 3. The two ends of the gear shaft are rotatably installed in the transmission chamber by the positioning bearing 1 4 and the positioning bearing 2 7, respectively, the positioning bearing 1 4 and the positioning bearing 2 7 are respectively correspondingly clamped in the clamping seats of the fixed shell 1 2 and the fixed shell 2 8, and the thin-walled bearing 6 is clamped and fixed on the clamping cavity in the fixed shell 2 8.

[0029] Furthermore, the outer rings of the multi-stage plum blossom sleeves are all plum blossom structures, which are nested with the inner holes of the previous stage plum blossoms. The multi-stage plum blossom sleeves include M48 plum blossom sleeves 10, M42 plum blossom sleeves 11, M36 plum blossom sleeves 12, and M30 plum blossom sleeves 13, which are sequentially arranged from the inside to the outside. The M48 plum blossom sleeve 10 is arranged in the nut sleeve 9, and the nut sleeve 9 is provided with a plum blossom-shaped through hole M56. The plum blossom sleeves of various specifications are integrated, and the corresponding plum blossom sleeves can be selected according to the model of the screw nut required.

[0030] Furthermore, the oil brush assembly includes an oil brush sleeve 14 which is fixedly mounted on the front end of the nut sleeve 9, springs 15 are fixedly mounted on the circumferential positions of the oil brush sleeve 14, and oil brushes 16 are mounted on the springs 15, and the brush heads of the oil brushes 16 are radially arranged and fit the outer surface of the nut stud to be tightened. The oil brush is elastically mounted by the spring, and has a certain elasticity and reset performance, and can fit the surface requirements of the pull rod studs of different specifications, and has universality.

[0031] The usage process of the above structure is:

[0032] The internal parts are limited and fixed by the fixed shell 1 2 and the fixed shell 2 8, and the two shells are connected and fixed at the nail ears at the four corners with screws; when in use, the torque of the electric wrench is transmitted to the gear shaft through the electric wrench adapter 1, and the electric wrench adapter and the gear shaft are connected and fixed by pins, and the positioning bearing 1 4 and the positioning bearing 2 7 on both sides of the small gear shaft limit the gear shaft in the sink groove of the fixed shell; the torque is transmitted from the small gear to the large gear hub 3, and the hub has a wire hole in the radial direction, and the inner side of the thin-walled bearing 6 is tightened with an inner hexagon screw to prevent relative sliding; the fixed shell 1 2 has a thin-walled bearing outer ring limit The thin-walled bearing is tightened with a hexagon socket screw on the outside. At this time, the thin-walled bearing can effectively support the gear hub without affecting the transmission of torque. The two parts are connected by countersunk bolts and nuts through the axial holes in the gear hub disk and the nut sleeve 9, and finally the torque is transmitted to the nut sleeve. The matching plum blossom sleeves of M48 / M42 / M36 / M30 specifications can be installed step by step in the nut sleeve (items 10 / 11 / 12 / 13); the end of the sleeve can be installed with an oil brush assembly, and the oil brush uses a spring to connect the collar and the oil brush, which can be disassembled at will according to the disassembly and assembly requirements during use.

[0033] like Figure 4 As shown: Before use, insert the output shaft end of the electric wrench 17 into the electric wrench adapter, and then select the plum blossom sleeve in the sleeve according to the nut specifications.

[0034] When installing the tie rod nut 19, first brush butter lightly on the top of the clamping stud 18 to be clamped to form a line; then slightly screw the tie rod nut 19 into the end of the tie rod stud 18; then expand the oil brush sleeve spring and embed the nut into the sleeve; start the electric wrench (turn counterclockwise) and start screwing it in; until the nut is screwed in to the movable pressure plate, remove the sleeve.

[0035] When the pull rod nut 19 is disassembled, there is no need to install the oil brush sleeve. After adjusting the rotation direction of the electric wrench to clockwise, the nut can be screwed out according to the above operation.

[0036] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. An electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter, characterized in that: The invention comprises a hollow fixed shell (2) and a fixed shell (8) which are corresponding to each other and snap-fitted with each other. A gear transmission assembly is fixedly installed in a transmission chamber surrounded by the fixed shell (2) and the fixed shell (8). A nut sleeve (9) for clamping and fixing a nut to be tightened is installed on the front end surface of the fixed shell (8). A multi-stage plum blossom sleeve which is nested with each other is installed in the nut sleeve (9). An oil brush assembly is installed at the front end of the nut sleeve (9). An electric wrench adapter (1) is installed on the rear end surface of the fixed shell (2). One end of the electric wrench adapter (1) is connected to the output shaft end of the electric wrench, and the other end extends into the transmission chamber and is connected to the gear shaft of the gear transmission assembly.

2. The electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter according to claim 1, characterized in that: The gear transmission assembly comprises a gear shaft, a gear (5) is installed in the middle of the gear shaft, the gear (5) is meshed and transmission-connected with a gear on a gear hub (3) on one side, the gear hub (3) is supported and rotatably installed by a thin-walled bearing (6), and the connecting end surfaces of the gear hub (3) and the nut sleeve (9) are respectively provided with axial holes corresponding to each other, and the axial holes are connected by bolts and nuts to achieve the connection between the gear hub (3) and the nut sleeve (9).

3. The electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter according to claim 2, characterized in that: The two ends of the gear shaft are rotatably mounted in the transmission chamber via a locating bearing 1 (4) and a locating bearing 2 (7), respectively; the locating bearing 1 (4) and the locating bearing 2 (7) are respectively and correspondingly mounted in the mounting seats of the fixed shell 1 (2) and the fixed shell 2 (8); the thin-walled bearing (6) is mounted and fixed in the mounting cavity in the fixed shell 2 (8).

4. The electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter according to claim 1, characterized in that: The outer rings of the multi-stage plum blossom sleeves are all plum blossom structures, which are nested and matched with the inner holes of the plum blossoms of the previous stage.

5. The electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter according to claim 1, characterized in that: The multi-stage plum blossom sleeve comprises an M48 plum blossom sleeve (10), an M42 plum blossom sleeve (11), an M36 plum blossom sleeve (12), and an M30 plum blossom sleeve (13) which are sequentially sleeved from the inside to the outside. The M48 plum blossom sleeve (10) is sleeved in a nut sleeve (9), and a plum blossom-shaped through hole M56 is provided in the nut sleeve (9).

6. The electric wrench socket with the functions of disassembling and assembling tie rod nuts and applying butter according to claim 1, characterized in that: The oil brush assembly comprises an oil brush sleeve (14) which is sleeved and fixed on the front end of the nut sleeve (9), springs (15) are respectively fixedly mounted on the circumferential positions of the oil brush sleeve (14), and oil brushes (16) are respectively mounted on the springs (15), and the brush heads of the oil brushes (16) are radially arranged and fit the outer surface of the nut stud to be tightened.

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