Split type worm gear reduction gearbox structure

Abstract

The utility model discloses a split type worm gear reduction gearbox structure, and relates to the technical field of worm gear reduction gears.The split type worm gear reduction gearbox structure comprises an upper shell, a pressure relief piece and a pressurization piece, a lower shell is fixed to the bottom of the upper shell through bolts, and the upper shell and the lower shell enable the worm gear reduction gearbox to form a split type structure; and the inner worm gear and the worm are convenient to disassemble and replace. According to the split type worm gear reduction gearbox structure, the rotary knob on the pressure relief piece drives the worm to rotate, so that the compression amount of the pressing block on the spring is adjusted, the pressure threshold value needing pressure relief is flexibly set, and compared with the situation that the pressure threshold value cannot be adjusted according to requirements in the prior art, the pressure threshold value can be adjusted according to needs; the pressure change in the worm gear reduction box under different working conditions can be more accurately adapted, and the problems of lubricating oil leakage and the like caused by overhigh pressure are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reduction boxes, in particular to a split worm gear reduction box structure. Background Art

[0002] A gearbox typically consists of an upper and lower housing, with a gasket installed between them. This gasket prevents lubricant oil leakage from the gearbox. During operation, as the gears rotate, the temperature of the lubricant inside the gearbox gradually rises, increasing internal pressure. Aging gaskets can weaken the gearbox's seal, allowing the lubricant to leak outward through the gasket, potentially causing leakage and impacting the gearbox's performance.

[0003] The utility model with authorization announcement number CN217301447U discloses a split worm gear reduction box, including an upper box and a lower box, a sealing gasket is installed between the upper box and the lower box, an annular plug-in notch is provided on the inner side of the upper end of the lower box, a plug-in flange is provided on the inner side of the lower end of the upper box to be plugged into the plug-in notch, the sealing gasket is placed in the plug-in notch, the upper end of the sealing gasket is lower than the upper end of the lower box, and a pressure exhaust valve for pressure relief is also provided on the upper box.

[0004] As shown in the above-mentioned utility model, the existing split worm gear reducer is generally connected to the plug-in groove by plugging the flange into the plug-in groove, which effectively prevents the leakage of lubricating oil. At the same time, the pressure exhaust valve is used to control the pressure inside the reducer to reduce the risk of lubricating oil leakage. However, this method of setting the exhaust valve cannot adjust the pressure threshold value in the reducer as needed, and it cannot pressurize the reducer in low temperature or polluted environment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a split worm gear reduction box structure to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a split worm gear reducer structure, comprising:

[0007] An upper housing, the bottom of which is fixed with a lower housing by bolts. The upper and lower housings form a split structure of the worm gear reduction box, facilitating the disassembly and replacement of the worm wheel and worm therein;

[0008] A pressure relief member is installed at the top of the upper housing and is used to relieve pressure on the worm gear reduction box to prevent lubricating oil leakage;

[0009] The booster is installed and connected to one side of the lower end of the pressure relief member, and is used to increase the pressure in the worm gear reduction box to improve the lubricating performance of the lubricating oil.

[0010] Preferably, the pressure relief part includes a pressure relief cylinder fixed in the middle of the top end of the upper shell, a screw groove is opened in the middle of the top end of the pressure relief cylinder, a worm is passed through the screw groove and connected by internal and external threads, a knob is fixed on the top end of the worm to facilitate driving the worm to rotate, and a pressure block is fixed on the bottom end of the worm, and the worm is used to drive the pressure block to move up and down in the pressure relief cylinder.

[0011] Preferably, a spring is fittedly connected to the bottom of the pressure block, and a movable plug is fittedly connected to the bottom end of the spring. The movable plug is arranged at the lower end of the pressure relief cylinder and in the groove connecting the pressure relief cylinder and the upper shell. The movable plug seals the connection between the pressure relief cylinder and the booster under the pressure of the spring. When the pressure increases, the movable plug moves upward to release the seal between the pressure relief cylinder and the booster, and unload the excess pressure into the booster.

[0012] Preferably, an extension tube is fixed to the other side of the lower end of the pressure relief cylinder, and a pressure gauge is fixed to the end of the extension tube for displaying the pressure in the worm gear reducer in real time.

[0013] Preferably, the booster includes a booster cylinder fixed to one side of the lower end of the pressure relief cylinder, and the booster cylinder is used to relieve pressure on the worm gear reducer before boosting. A valve is provided at the connection between the booster cylinder and the pressure relief cylinder for sealing the pressure relief cylinder and the booster cylinder when the pressure is balanced.

[0014] Preferably, a mounting plate is fixed to one end of the boost cylinder, and the mounting plate is fixed to the top of the upper shell by bolts. A telescopic cylinder is fixed to one side of the mounting plate, and a piston is fixed to the output end of the telescopic cylinder. The piston is arranged in the boost cylinder, and the piston can compress the air in the boost cylinder when moving, thereby achieving a certain boosting effect.

[0015] Beneficial effects

[0016] The utility model provides a split worm gear reducer structure. Compared with the existing technology, it has the following advantages:

[0017] 1. This split worm gear reducer structure drives the worm to rotate through the knob on the pressure relief part, thereby adjusting the compression amount of the pressure block on the spring, thereby flexibly setting the pressure threshold that requires pressure relief. Compared with the existing technology that cannot adjust the pressure threshold according to demand, it can more accurately adapt to the changes in pressure in the worm gear reducer under different working conditions, and effectively avoid problems such as lubricating oil leakage caused by excessive pressure.

[0018] 2. In the special environment of low temperature or impurity contamination, the booster of this split worm gear reducer can compress the air in the booster cylinder through the telescopic cylinder to increase the pressure in the worm gear reducer. This not only helps to push the lubricating oil to the various lubrication points quickly at low temperatures and ensure the lubrication effect in the initial stage of startup, but also enables the lubricating oil to better flush away impurities in a polluted environment and maintain internal cleanliness. It solves the deficiency of the existing technology that the reducer cannot be pressurized in these special environments and improves the working performance of the worm gear reducer in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a bottom view schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is an exploded schematic diagram of the pressure relief component and the pressure boost component structure of the utility model;

[0022] Figure 4 This is a bottom view of the pressure relief component and the pressurization component structure of the utility model after explosion.

[0023] In the figure: upper shell 1, lower shell 11, pressure relief part 2, pressure relief cylinder 21, screw groove 22, worm 23, knob 24, pressure block 25, spring 26, movable plug 27, extension tube 28, pressure gauge 29, booster part 3, booster cylinder 31, valve 32, mounting plate 33, telescopic cylinder 34, piston 35. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 , this utility model provides two technical solutions:

[0026] The first embodiment: A split worm gear reduction box structure includes an upper shell 1, a pressure relief part 2 and a booster part 3. The bottom of the upper shell 1 is fixed with a lower shell 11 by bolts. The upper shell 1 and the lower shell 11 form a split structure of the worm gear reduction box, which is convenient for disassembly and replacement of the worm wheel and worm 23 therein.

[0027] Specifically, the pressure relief member 2 is installed at the top of the upper shell 1, and is used to relieve pressure on the worm gear reduction box to prevent lubricating oil leakage. The pressure relief member 2 includes a pressure relief cylinder 21 fixed at the middle of the top of the upper shell 1. A screw groove 22 is provided at the middle of the top of the pressure relief cylinder 21. A worm 23 is passed through the screw groove 22 and connected by internal and external threads. A knob 24 is fixed at the top of the worm 23 to facilitate the rotation of the worm 23. A pressure block 25 is fixed at the bottom of the worm 23. The worm 23 is used to drive the pressure block 25 to move up and down in the pressure relief cylinder 21. A spring 26 is fitted and connected to the bottom of the spring 26. A movable plug 27 is fitted and connected to the movable plug 27. A one-way valve is embedded in the lower end of 7, and the upper end opening of the one-way valve is connected to the top of the movable plug 27 through a plurality of through holes. The movable plug 27 is arranged at the lower end of the pressure relief cylinder 21 and in the groove communicating with the upper shell 1. The movable plug 27 seals the connection between the pressure relief cylinder 21 and the supercharger 3 under the pressure of the spring 26. When the pressure increases, the movable plug 27 moves upward to release the seal between the pressure relief cylinder 21 and the supercharger 3, and unloads the excess pressure into the supercharger 3. An extension tube 28 is fixed to the other side of the lower end of the pressure relief cylinder 21, and a pressure gauge 29 is fixed to the end of the extension tube 28 for displaying the pressure in the worm gear reduction box in real time.

[0028] More specifically, the booster 3 is installed and connected to one side of the lower end of the pressure relief member, and is used to enhance the pressure in the worm gear reduction box and improve the lubricating performance of the lubricating oil. The booster 3 includes a booster cylinder 31 fixed to one side of the lower end of the pressure relief cylinder 21. The booster cylinder 31 is used to relieve the pressure of the worm gear reduction box before supercharging. A valve 32 is provided at the connection between the booster cylinder 31 and the pressure relief cylinder 21, which is used to seal the pressure relief cylinder 21 and the booster cylinder 31 when the pressure is balanced. A mounting plate 33 is fixed to one end of the booster cylinder 31, and the mounting plate 33 is fixed to the top of the upper shell 1 by bolts. A telescopic cylinder 34 is fixed to one side of the mounting plate 33, and a piston 35 is fixed to the output end of the telescopic cylinder 34. The piston 35 is arranged in the booster cylinder 31. The piston 35 can compress the air in the booster cylinder 31 when moving, thereby achieving a certain boosting effect.

[0029] Before the device works, the tightness of the spring 26 is first adjusted according to the threshold value of the pressure relief required. At this time, the knob 24 is turned, and the knob 24 drives the worm 23 to rotate. The worm 23 cooperates with the screw groove 22 to drive the pressure block 25 to move up and down in the pressure relief cylinder 21, thereby driving the spring 26 to compress or stretch, so as to adjust the compression amount of the spring 26 until the compression amount of the spring 26 is adjusted. When the device is working, as the worm gear in the reduction box rotates, the pressure in the reduction box increases with the increase of temperature. When the pressure inward from the deceleration exceeds the threshold, the air pressure on the movable plug 27 is greater than the elastic force of the spring 26, and the movable plug 27 is forced to move upward until the pressure relief cylinder 21 is connected to the boost cylinder 31. At this time, the valve 32 in the boost cylinder 31 is forced to open, balancing the air in the pressure relief cylinder 21 and the boost cylinder 31 Pressure is increased, achieving a certain pressure relief effect. When the reduction gearbox works in a low temperature or impurity-contaminated environment, it is necessary to increase the pressure in the reduction gearbox. In a low temperature environment, the pressure increase helps to push the lubricating oil to reach various lubrication points quickly, ensuring the lubrication effect in the initial stage of startup. At the same time, the pressure increase can make the lubricating oil better flush away impurities in an impurity-contaminated environment to maintain internal cleanliness. At this time, the telescopic cylinder 34 is started, and the telescopic cylinder 34 drives the piston 35 to move in the boosting cylinder 31 to compress the air in the boosting cylinder 31. When the pressure is too high, the valve 32 opens in the reverse direction to balance the pressure in the pressure relief cylinder 21 and the boosting cylinder 31. The movable plug 27 in the pressure relief cylinder 21 is provided with a through hole and a one-way valve, so that the pressure in the inner cavity of the pressure relief cylinder 21 can be balanced to the reduction gearbox, which plays a role of pressurization to a certain extent.

[0030] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split worm gear reducer structure, characterized in that: include: An upper housing, the bottom of which is fixed with a lower housing by bolts. The upper and lower housings form a split structure of the worm gear reduction box, facilitating the disassembly and replacement of the worm wheel and worm therein; A pressure relief member is installed at the top of the upper housing and is used to relieve pressure on the worm gear reduction box; A booster is installed and connected to one side of the lower end of the pressure relief component, and is used to increase the pressure in the worm gear reduction box.

2. The split worm gear reducer structure according to claim 1, characterized in that: The pressure relief part includes a pressure relief cylinder fixed in the middle of the top end of the upper shell body, a screw groove is opened in the middle of the top end of the pressure relief cylinder, a worm is passed through the screw groove and connected by internal and external threads, a knob is fixed on the top end of the worm to facilitate driving the worm to rotate, and a pressure block is fixed on the bottom end of the worm, and the worm is used to drive the pressure block to move up and down in the pressure relief cylinder.

3. The split worm gear reducer structure according to claim 2, characterized in that: A spring is fittedly connected to the bottom of the pressure block, and a movable plug is fittedly connected to the bottom end of the spring. The movable plug is arranged at the lower end of the pressure relief cylinder and in the slot connecting the pressure relief cylinder and the upper shell. The movable plug seals the connection between the pressure relief cylinder and the supercharger under the pressure of the spring. When the pressure increases, the movable plug moves upward to release the seal between the pressure relief cylinder and the supercharger, and unload the excess pressure into the supercharger.

4. The split-type worm gear reducer structure according to claim 2, characterized in that: An extension tube is fixed to the other side of the lower end of the pressure relief cylinder, and a pressure gauge is fixed to the end of the extension tube for displaying the pressure in the worm gear reduction box in real time.

5. The split-type worm gear reduction box structure according to claim 1, characterized in that: The booster component includes a booster cylinder fixed to one side of the lower end of the pressure relief cylinder. The booster cylinder is used to relieve pressure on the worm gear reducer before boosting. A valve is provided at the connection between the booster cylinder and the pressure relief cylinder for sealing the pressure relief cylinder and the booster cylinder when the pressure is balanced.

6. The split-type worm gear reduction box structure according to claim 5, characterized in that: A mounting plate is fixed to one end of the boost cylinder, and the mounting plate is fixed to the top of the upper shell by bolts. A telescopic cylinder is fixed to one side of the mounting plate, and a piston is fixed to the output end of the telescopic cylinder. The piston is arranged in the boost cylinder, and the piston compresses the air in the boost cylinder for boosting when moving.

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