Lock gear

Abstract

The utility model relates to the technical field of mechanical locks, and discloses a lock gear which comprises a gear body, the upper end and the lower end in the gear body are fixedly connected with shells, cavities are formed in the shells, elastic assemblies are arranged in the cavities, limiting assemblies are connected in the shells in a sliding mode, and the limiting assemblies are connected with the elastic assemblies in a sliding mode. The outer portion of the shell is slidably connected with a rubber ball, the left side of the outer portion of the gear body is fixedly connected with a shaft center, the elastic assembly comprises a telescopic rod, the outer portion of the telescopic rod is sleeved with a spring, and the outer portion of the telescopic rod is fixedly connected into the cavity. According to the anti-theft lock, the shaft core can extrude the rubber ball, the rubber ball extrudes the spring through the limiting plate, then the spring can deform, when the spring is extruded to a certain force, the spring rebounds, then the shaft core can be protected, and when the lock is subjected to external impact force, the shaft core is prevented from being damaged. And the spring and the rubber ball can play a buffering role.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical lock technology field especially relates to a lock gear. BACKGROUND

[0002] In the industrial production workshop, there are various automatic control cabinets, and these control cabinets control the operation of the motor, sensor, valve and other equipment on the production line. The lock gear is applied to the control cabinet door lock to prevent personnel other than the operator from opening the control cabinet at will.

[0003] In the prior art, some lock gears are designed with additional support structures near the shaft, such as adding rib plates or supports, to share the pressure of the lock gear on the shaft.

[0004] However, in actual use, when the lock gear cannot adapt to the shaft through the spring and rubber ball, the external force will be directly transmitted to the shaft and gear when subjected to external impact, such as the door being hit hard or someone trying to force the lock. In view of the above problems, a lock gear is proposed. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a lock gear, which aims to improve the problem that some devices in the prior art cannot adapt to the shaft.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A lock gear, comprising a gear body, the inside of the gear body is fixedly connected with a shell at the upper and lower ends, a cavity is formed in the inside of the shell, a spring assembly is arranged in the inside of the cavity, a limiting assembly is slidably connected in the inside of the shell, a rubber ball is slidably connected outside the shell, and a shaft is fixedly connected to the left side of the gear body;

[0008] As a further description of the above technical scheme:

[0009] The spring assembly comprises a telescopic rod, the outside of the telescopic rod is sleeved with a spring, and the outside of the telescopic rod is fixedly connected in the inside of the cavity;

[0010] As a further description of the above technical scheme:

[0011] The limiting assembly comprises a limiting plate, the outside of the limiting plate is slidably connected in the inside of the cavity, and the outside of the limiting plate is slidably connected in the inside of the shell;

[0012] As a further description of the above technical scheme:

[0013] The gear body is fixedly connected with a gear slot on the right side, and the gear slot is fixedly connected with gear teeth on the outside.

[0014] As a further description of the above technical solution:

[0015] The gear teeth are provided with an oil hole on the outside, and the gear slot is provided with an oil injection hole on the outside.

[0016] As a further description of the above technical solution:

[0017] The oil injection hole is fixedly connected with a rubber plug on the inside, and the rubber plug is fixedly connected on the inside of the gear slot.

[0018] As a further description of the above technical solution:

[0019] The gear teeth are provided with a gear edge on the right side, and the gear body is provided with a center hole on the right side.

[0020] As a further description of the above technical solution:

[0021] One end of the spring is fixedly connected on the inside of the shell, and the other end of the spring is fixedly connected on the outside of the limiting plate.

[0022] The utility model has the advantages of:

[0023] 1、The utility model discloses a locking gear, which comprises a shell, a limiting plate, a spring, a rubber ball, a gear body and gear teeth.

[0024] 2、When the gear teeth are self-lubricated, the rubber plug is injected into the inside of the gear teeth, and then when the gear teeth rotate, the lubricating oil flows on the outside of the gear teeth through the oil hole, thereby realizing self-lubrication of the gear teeth. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of the locking gear is provided for the utility model.

[0026] Figure 2 A structure schematic view of the rubber ball of the locking gear is provided for the utility model.

[0027] Figure 3A structure diagram of an oil hole of a lock gear is provided in the utility model.

[0028] Figure 4 For Figure 3 An enlarged view of A in the middle;

[0029] Figure 5 A structure diagram of a center hole of a lock gear is provided in the utility model.

[0030] Legend:

[0031] 1, gear main body; 2, shell; 3, cavity; 4, limiting plate; 5, telescopic rod; 6, spring; 7, rubber ball; 8, tooth groove; 9, tooth; 10, oil hole; 11, oil injection hole; 12, rubber plug; 13, gear edge; 14, center hole; 15, shaft center. Specific implementation

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Reference Figures 1 to 3The utility model provides a kind of embodiment: a lock gear, including gear main body 1, gear main body 1 as the core part of lock gear, usually adopt high-strength metal material to manufacture, such as high-quality alloy steel, its shape is strictly according to the gear profile design of standard, with accurate tooth shape and pitch, to ensure smooth transmission and high-efficiency power transmission in the meshing process with other gears, the inside of gear main body 1 both upper and lower ends is fixedly connected with shell 2, shell 2 is as the load bearing and protection structure of lock gear internal components, select with certain strength and tenacity metal material to make, such as aluminum alloy, the inside of shell 2 is provided with cavity 3, cavity 3 is an important space structure in the inside of shell 2, the shape and size of cavity 3 are accurately processed according to the specific design and movement requirement of limiting component and elastic component, the inside of cavity 3 is provided with elastic component, elastic component is to the self-adapting protection of axle 15, it can provide necessary elastic force for limiting component, so that it can accurately respond and realize corresponding action under different working conditions, elastic component includes telescopic rod 5, telescopic rod 5 usually adopt high-strength metal material to make, such as stainless steel pipe, the internal structure of telescopic rod 5 is designed as telescopic form, is composed of inner rod and outer tube, the cooperation precision between inner rod and outer tube is extremely high, the inner rod can be guaranteed to freely, smoothly telescopic in outer tube by accurate machining process, simultaneously, it has good directivity, prevent from appearing deflection or jamming phenomenon in telescopic process, telescopic rod 5 is externally equipped with spring 6, spring 6 selects spiral spring 6 with appropriate elastic coefficient, the material of spring 6 is selected according to working environment and service life requirement, such as carbon steel spring 6, the outer diameter of spring 6 is adapted to the outer tube outer diameter of telescopic rod 5, is tightly equipped in the outer tube outside of telescopic rod 5;

[0034] The outer part of the telescopic rod 5 is fixedly connected to the inside of the cavity 3, the inside of the shell 2 is slidingly connected to the limiting assembly, the limiting assembly includes a limiting plate 4, which is usually made of metal plate, such as stainless steel plate, the shape and size of the limiting plate 4 are designed according to the internal structure of the cavity 3 and the limiting requirements, the outer part of the limiting plate 4 is slidingly connected to the inside of the cavity 3 and the inside of the shell 2, the outer part of the shell 2 is slidingly connected to the rubber ball 7, which plays a role of auxiliary locking and buffering in the locking gear, and is usually made of rubber material with high elasticity, wear resistance and oil resistance, such as nitrile rubber, the shape of the rubber ball 7 is spherical, and the diameter thereof is selected according to the overall design requirements of the external structure of the shell 2 and the locking gear, and is generally matched with the size of the corresponding hole on the outside of the shell 2, so that the rubber ball 7 can freely slide in the hole but will not easily fall off, the outer left side of the gear body 1 is fixedly connected to the shaft 15, which serves as the support and rotation center of the gear body 1, and is usually made of high-strength alloy steel material and is subjected to heat treatment processes such as quenching and tempering to improve the hardness and wear resistance thereof, so as to withstand various radial forces and axial forces generated during the rotation of the gear body 1 and ensure that the gear body 1 can stably and smoothly rotate around the shaft 15.

[0035] With reference to Figures 3 to 5 The outer right side of the gear body 1 is fixedly connected to the gear slot 8, which is made of metal material matched with the gear body 1 and is firmly attached to the outer right side of the gear body 1 by using a welding process, the outer part of the gear slot 8 is fixedly connected to the gear teeth 9, which is a key part directly involved in meshing transmission and is also made of high-quality metal material and is subjected to strict heat treatment processes such as quenching and tempering to improve the surface hardness and wear resistance thereof, so as to ensure that the gear teeth 9 can maintain good tooth profile accuracy, reduce wear and prolong the service life of the gear during long-term use, the outer part of the gear teeth 9 is provided with the oil hole 10, which is provided to meet the lubrication requirements of the gear during work and has high precision requirements in design and processing. The oil hole 10 is usually drilled on the outer part of the gear teeth 9 by using a drilling process, and the size of the hole diameter is determined comprehensively according to factors such as the size, speed and lubrication system pressure of the gear, the outer part of the gear slot 8 is provided with the oil injection hole 11, which is an important channel for supplementing lubricating oil to the internal lubrication system of the gear, and the selection of the position and size of the oil injection hole 11 is very important, the oil injection hole 11 is generally located at a suitable position of the gear slot 8 to facilitate the oil injection operation of the operator, and the uniformity of the distribution of lubricating oil in the gear slot 8 is also considered;

[0036] The inside of the oil injection hole 11 is fixedly connected with a rubber plug 12, which mainly plays a sealing role of the oil injection hole 11, prevents the lubricating oil from leaking out of the oil injection hole 11 during the operation of the gear, and also prevents the dust, impurities and the like from the outside from entering the lubricating system inside the gear, polluting the lubricating oil, and affecting the normal lubrication and working performance of the gear. The outside of the rubber plug 12 is fixedly connected inside the gear slot 8, and the outside right side of the gear tooth 9 is provided with a gear edge 13, which is part of the gear body 1. It not only plays a protective role of the gear tooth 9, but also affects the overall strength and rigidity of the gear to a certain extent. The shape and size of the gear edge 13 are optimized according to the design requirements and application scenarios of the gear, and are generally circular or slightly arc-shaped edge profiles. The thickness and width of the gear edge 13 are reasonably selected according to the size and carrying capacity of the gear. The inside right side of the gear body 1 is provided with a center hole 14, which is a key part of the gear body 1 installation and rotation, and its precision and quality directly affect the working performance and stability of the gear. The diameter and tolerance of the center hole 14 are accurately machined according to the size and precision requirements of the shaft matched with the gear, and generally high-precision machining processes such as boring and grinding are adopted to ensure that the cylindricity, roundness and surface finish of the center hole 14 reach extremely high standards. One end of the spring 6 is fixedly connected to the inside of the shell 2, and the other end of the spring 6 is fixedly connected to the outside of the limiting plate 4.

[0037] Working principle: when protecting the shaft 15, through the shaking of the shaft 15, under the action of the shaft 15, the shaft 15 can extrude the rubber ball 7, under the action of the rubber ball 7, the rubber ball 7 extrudes the spring 6 through the limiting plate 4, thereby the spring 6 can be deformed, when extruded to a certain force, the spring 6 rebounds, thereby the protection of the shaft 15 can be realized.

[0038] When the gear tooth 9 is self-lubricated, the rubber plug 12 is injected into the inside of the gear tooth 9, and then when the gear tooth 9 rotates, the lubricating oil flows outside the gear tooth 9 through the oil injection hole 10, thereby the self-lubrication of the gear tooth 9 can be realized.

[0039] Finally, it should be pointed out that: the above-mentioned only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still modifies the technical solutions recorded in the foregoing embodiments, or makes equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A locking gear, comprising a gear body (1), characterized in that: The gear body (1) has a housing (2) fixedly connected to both the upper and lower ends inside. The housing (2) has a cavity (3) inside. The cavity (3) has an elastic component inside. The housing (2) has a limit component slidably connected inside. The housing (2) has a rubber ball (7) slidably connected outside. The gear body (1) has a shaft (15) fixedly connected to the left side outside.

2. A locking gear according to claim 1, characterized in that: The elastic component includes a telescopic rod (5), and a spring (6) is sleeved on the outside of the telescopic rod (5). The outside of the telescopic rod (5) is fixedly connected to the inside of the cavity (3).

3. A locking gear according to claim 2, characterized in that: The limiting assembly includes a limiting plate (4), the outside of which is slidably connected to the inside of the cavity (3), and the outside of which is slidably connected to the inside of the housing (2).

4. A locking gear according to claim 1, characterized in that: A tooth groove (8) is fixedly connected to the outer right side of the gear body (1), and teeth (9) are fixedly connected to the outer side of the tooth groove (8).

5. A locking gear according to claim 4, characterized in that: The tooth (9) has an oil passage hole (10) on its outside, and the tooth groove (8) has an oil injection hole (11) on its outside.

6. A locking gear according to claim 5, characterized in that: A rubber plug (12) is fixedly connected inside the oil injection hole (11), and the rubber plug (12) is fixedly connected outside the tooth groove (8).

7. A locking gear according to claim 4, characterized in that: The outer right side of the tooth (9) is provided with a gear edge (13), and the inner right side of the gear body (1) is provided with a central hole (14).

8. A locking gear according to claim 3, characterized in that: One end of the spring (6) is fixedly connected to the inside of the housing (2), and the other end of the spring (6) is fixedly connected to the outside of the limiting plate (4).

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