Electric push rod assembly for vacuum industrial furnace door
By installing a push-pull rod cleaning and lubrication device on the outside of the movable push rod of the vacuum industrial furnace door electric push rod, the sponge cleaning and oil-absorbing pad is used to clean and lubricate the dirty accumulation and rust caused by the exposure of the movable push rod, and the smooth movement of the push rod and the normal opening and closing of the furnace door are achieved.
Patent Information
- Application Number
- CN202323353349.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2033-12-08
AI Technical Summary
The movable push rod on the electric push rod of the vacuum industrial furnace door is exposed, which is easy to absorb dust and dirt, causing surface corrosion, increasing friction, causing poor movement, jamming or failure, affecting the normal opening and closing of the furnace door.
A push-pull rod cleaning and lubricating device is designed, including a sponge cleaning and oil-absorbing pad. When the movable push-pull is driven up and down by the push-pull motor, the cleaning device can clean up and remove dirt from the outer wall and release lubricating oil to reduce friction.
It effectively prevents the accumulation and rust of the surface of the movable push rod, reduces friction, ensures the smooth movement of the push rod, extends its service life, and ensures the normal opening and closing of the vacuum industrial furnace door.
Smart Images
Figure CN222617574U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to vacuum industrial furnaces, and in particular relates to an electric push rod assembly for a vacuum industrial furnace door. Background Art
[0002] The electric push rod of the vacuum industrial furnace door is a device used to control the opening and closing of the furnace door. It is usually composed of a motor, a reducer, a clutch, a transmission lever and a connecting pin. During use, by controlling the forward and reverse rotation of the motor, the power is converted into mechanical kinetic energy, thereby driving the rotation of the reducer and the transmission lever, and the connecting pin of the push rod is connected to the furnace door. When the transmission lever rotates and drives the connecting pin to move up and down, the furnace door can be opened and closed. The electric push rod is widely used in industrial heat treatment equipment such as vacuum furnaces and high-temperature furnaces. It has the characteristics of easy operation, stability and reliability, low noise, etc., which improves work efficiency and production quality.
[0003] However, when the movable push rod inside the fixed push rod body on the electric push rod of the vacuum industrial furnace door is pushed upward by the motor, after being fixed, the movable push rod is exposed to the outside, and when working in the factory, a large amount of dust or other dirt can be easily adsorbed on the outer wall of the movable push rod. The dirt adsorbed on it will accumulate more and more over time, which may cause its surface to be corroded by dirt and the like. As a result, when the movable push rod contacts the inside of the fixed push rod body, friction increases, and the movable push rod moves unsmoothly, gets stuck or malfunctions, resulting in the vacuum industrial furnace door being unable to open and close normally, which has an adverse effect on production efficiency and production plans. Utility Model Content
[0004] The purpose of the utility model is to provide an electric push rod assembly for a vacuum industrial furnace door, so as to solve the problem raised in the above-mentioned background technology that when the movable push rod on the electric push rod of the vacuum industrial furnace door is exposed to the outside, the surrounding dust or other dirt is easily adsorbed on the outer wall of the movable push rod, which may cause its surface to be dirty and rusted, so that the movable push rod moves unsmoothly, gets stuck or malfunctions, resulting in the vacuum industrial furnace door being unable to open and close normally, which has an adverse effect on production efficiency and production plan.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric push rod assembly for a vacuum industrial furnace door, comprising a base and a fixed push rod body, the base is provided with a fixed push rod body on the outer wall near the upper end on the left side, a fixed cover is provided on the outer wall of the upper end of the fixed push rod body, and the fixed cover has the same length and width as the fixed push rod body, the fixed cover and the fixed push rod body are fixedly connected by a plurality of screws, a movable push rod is inserted at the inner center of the fixed push rod body and the upper end of the fixed cover, and a push-pull rod cleaning and lubrication device is sleeved on the circular outer part of the movable push rod;
[0006] The push-pull rod cleaning and lubrication device includes a metal fixing block, a circular outer shell, a circular inner shell and a sponge cleaning oil absorption pad. The metal fixing block is fixed to the center of the outer wall of the upper end of the fixing cover by multiple screws. A circular outer shell is arranged at the center of the upper end of the metal fixing block. A circular inner shell is inserted into the circular interior of the circular outer shell. A sponge cleaning oil absorption pad is arranged on the inner wall of the circular inner shell. The inner wall of the sponge cleaning oil absorption pad is in close contact with the circular outer part of the movable push rod.
[0007] Preferably, the push-pull rod cleaning and lubrication device also includes a threaded hole, a threaded rod and a knob. The threaded hole is arranged at the center of the front end of the circular shell. A threaded rod is threadedly inserted into the threaded hole from front to back. A knob is arranged on the outer wall of the front end of the threaded rod, and the outer wall of the knob is densely covered with anti-slip grooves to increase the friction between the finger skin. The knob and the threaded rod are fixedly connected by welding.
[0008] Preferably, the threaded rod can move backwards and firmly contact the front end outer wall of the circular inner shell, and the circular inner shell can move up and down and rotate clockwise and counterclockwise inside the circular outer shell when the threaded rod is not in contact with the outer wall of the circular inner shell.
[0009] Preferably, a push rod motor is provided on the outer wall of the base near the upper end on the right side, the push rod motor is electrically connected to an external power source through an electric wire, and the push rod motor is transmission-connected to the movable push rod through the base and the fixed push rod body.
[0010] Preferably, a rotary joint is threadedly inserted into the upper end of the movable push rod, and the diameter of the rotary joint is the same as the diameter of the movable push rod. A through hole is longitudinally penetrated at the center of the rotary joint.
[0011] Preferably, the base is provided with a connecting ear near the center of the left bottom end, and a through hole is longitudinally penetrated at the inner center of the connecting ear. The connecting ear, the base and the fixed push rod body are all made of aluminum alloy, and the outer walls of the connecting ear, the base and the fixed push rod body are also sprayed with paint.
[0012] Compared with the prior art, the utility model provides an electric push rod assembly for a vacuum industrial furnace door, which has the following beneficial effects:
[0013] The utility model adds a novel push-pull rod cleaning and lubricating device to the outside of the movable push rod of the electric push rod assembly for the vacuum industrial furnace door. When the movable push rod is pushed upward by the push rod motor, because there is a sponge cleaning oil absorption pad inside the device, and the inner wall of the sponge cleaning oil absorption pad is in close contact with the outside of the movable push rod, when the movable push rod moves upward or downward, the dirt attached to the outer wall of the movable push rod can be cleaned off, so that the outer wall of the movable push rod can always be kept clean and smooth, avoiding jamming inside the fixed push rod body and causing problems with the vacuum industrial furnace door switch. At the same time, lubricating oil is absorbed on the sponge cleaning oil absorption pad, so when the movable rod moves up and down, the lubricating oil on the sponge cleaning oil absorption pad can also be released, and fully contact and lubricate the outer wall of the movable push rod, so that the friction is reduced inside the fixed push rod body, the movement can be smoother, and the movable push rod can be better protected, and its service life is extended. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of an electric push rod assembly for a vacuum industrial furnace door.
[0015] Figure 2 The utility model is a schematic diagram of the planar structure of an electric push rod assembly for a vacuum industrial furnace door.
[0016] Figure 3 It is a three-dimensional structural schematic diagram of the push-pull rod cleaning and lubricating device of the utility model.
[0017] In the figure: 1. Connecting ear; 2. Base; 3. Fixed push rod body; 4. Push rod motor; 5. Fixed cover; 6. Push-pull rod cleaning and lubrication device; 7. Movable push rod; 8. Perforation; 9. Rotary joint; 10. Metal fixing block; 11. Round outer shell; 12. Round inner shell; 13. Sponge cleaning oil absorption pad; 14. Threaded hole; 15. Threaded rod; 16. Knob. DETAILED DESCRIPTION
[0018] 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 in 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.
[0019] The utility model provides Figure 1-3The electric push rod assembly for a vacuum industrial furnace door shown in the figure includes a base 2 and a fixed push rod body 3, a fixed push rod body 3 is arranged on the outer wall of the upper end of the base 2 near the left side, a fixed cover 5 is arranged on the outer wall of the upper end of the fixed push rod body 3, and the fixed cover 5 has the same length and width as the fixed push rod body 3, the fixed cover 5 and the fixed push rod body 3 are fixedly connected by a plurality of screws, a movable push rod 7 is inserted at the inner center of the upper end of the fixed push rod body 3 and the fixed cover 5, a push-pull rod cleaning and lubricating device 6 is sleeved on the circular outer part of the movable push rod 7, a push rod motor 4 is arranged on the outer wall of the upper end of the base 2 near the right side, the push rod motor 4 is electrically connected to the external power supply through electric wires, and the push rod motor 4 is connected to the fixed push rod body 3 through the base 2 and the fixed push rod body 3. The rod body 3 is connected to the movable push rod 7 by transmission. The upper end of the movable push rod 7 is internally threaded with a rotary joint 9, and the diameter of the rotary joint 9 is the same as that of the movable push rod 7. A through hole 8 is longitudinally penetrated at the center of the inner part of the rotary joint 9. The base 2 is provided with a connecting ear 1 near the center of the left bottom end, and a through hole 8 is longitudinally penetrated at the center of the inner part of the connecting ear 1. The connecting ear 1, the base 2 and the fixed push rod body 3 are all made of aluminum alloy, and the outer walls of the connecting ear 1, the base 2 and the fixed push rod body 3 are also sprayed with paint. First, the fixed push rod body 3 is installed on the outer wall of the upper end of the base 2 near the left side, and then the fixed cover 5 is placed on the outer wall of the upper end of the fixed push rod body 3 to ensure that the length and width are the same as those of the fixed push rod body 3. Use screws to connect and tighten the fixed cover 5 and the fixed push rod body 3. Insert the movable push rod 7 into the inner center of the upper end of the fixed push rod body 3 and the fixed cover 5, then sleeve the push-pull rod cleaning and lubricating device 6 on the outside of the movable push rod 7 to ensure that it fits tightly with the movable push rod 7, and install the push rod motor 4 on the outer wall of the upper right end of the base 2 to ensure stable position. According to the specific wire connection method, connect the push rod motor 4 to the external power supply, and connect the push rod motor 4 and the movable push rod 7 through the base 2 and the fixed push rod body 3. Ensure that the transmission connection is firm to achieve the motion conversion from the push rod motor 4 to the movable push rod 7, then insert the rotary joint 9 into the inner thread of the upper end of the movable push rod 7 to ensure firm insertion. The diameter of the rotary joint 9 should match the diameter of the movable push rod 7, and then install the connecting ear 1 at the center of the left bottom end of the base 2 to ensure stable position. Ensure that the perforation 8 of the connecting ear 1 is aligned with the longitudinal through-hole 8 of the rotary joint 9, and finally install the entire device at the desired furnace door position.
[0020] like Figure 1 and Figure 3As shown, the push-pull rod cleaning and lubricating device 6 includes a metal fixing block 10, a circular outer shell 11, a circular inner shell 12 and a sponge cleaning oil absorption pad 13. The metal fixing block 10 is fixed to the center of the outer wall of the upper end of the fixing cover 5 by multiple screws. The circular outer shell 11 is arranged at the center of the upper end of the metal fixing block 10. The circular inner shell 12 is inserted into the circular interior of the circular outer shell 11. The sponge cleaning oil absorption pad 13 is arranged on the inner wall of the circular inner shell 12. The inner wall of the sponge cleaning oil absorption pad 13 is in close contact with the circular outer part of the movable push rod 7. The push-pull rod cleaning and lubricating device 6 also includes a threaded hole 14, a threaded rod 15 and a knob 16. The threaded hole 14 is arranged at the inner center of the front end of the circular outer shell 11. The threaded rod 15 and the knob 16 A threaded rod 15 is threadedly inserted from front to back inside the groove hole 14, and a knob 16 is arranged on the outer wall of the front end of the threaded rod 15, and the outer wall of the knob 16 is densely covered with anti-skid patterns to increase the friction between the finger skin and the knob 16. The knob 16 and the threaded rod 15 are fixedly connected by welding. The threaded rod 15 can move backward to firmly contact the front end outer wall of the circular inner shell 12. When the threaded rod 15 does not contact the outer wall of the circular inner shell 12, the circular inner shell 12 can move up and down inside the circular outer shell 11 and rotate clockwise and counterclockwise. First, the metal fixing block 10 is fixed to the center of the upper outer wall of the fixing cover 5 by multiple screws to ensure that it is firmly fixed so that it will not be loosened in subsequent operations. The circular outer shell 11 is fixed to the center of the upper end of the metal fixing block 10 by welding, and then the circular inner shell 12 with the sponge cleaning oil absorption pad 13 is sleeved inside the circular outer shell 11 to ensure that the sponge cleaning oil absorption pad 13 is in close contact with the circular outer part of the movable push rod 7 and can fully absorb the lubricating oil. Because there is a threaded hole 14 at the center of the front end of the circular outer shell 11, the threaded rod 15 with a knob 16 at the front end can be longitudinally inserted into the threaded hole 14 from front to back, and then the knob 16 is rotated to move the threaded rod 15 backward so that it is firmly against the front end outer wall of the circular inner shell 12. In this way, the position of the circular inner shell 12 can be fixed. Before use, an appropriate amount of The lubricating oil is added to the sponge cleaning oil absorption pad 13 to ensure that the lubricating oil fully penetrates into the sponge cleaning oil absorption pad 13 and keeps it moist. In this way, when the movable push rod 7 moves up and down inside the sponge cleaning oil absorption pad 13, the outer wall of the movable push rod 7 can fully contact the lubricating oil, making its movement smooth. When the sponge cleaning oil absorption pad 13 needs to be replaced, the threaded rod 15 can be moved forward by rotating the knob 16. When the threaded rod 15 has no contact with the outer wall of the circular inner shell 12, the circular inner shell 12 is removed from the inside of the circular outer shell 11 and replaced with a new one. The sponge cleaning oil absorption pad 13 can be used. Finally, if necessary, an appropriate amount of lubricating oil can be added to the sponge cleaning oil absorption pad 13.
[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electric push rod assembly for a vacuum industrial furnace door, comprising a base (2) and a fixed push rod body (3), characterized in that: A fixed push rod body (3) is arranged on the outer wall of the upper left end of the base (2), a fixed cover (5) is arranged on the outer wall of the upper end of the fixed push rod body (3), and the fixed cover (5) has the same length and width as the fixed push rod body (3), the fixed cover (5) and the fixed push rod body (3) are fixedly connected by a plurality of screws, a movable push rod (7) is inserted at the inner center of the upper ends of the fixed push rod body (3) and the fixed cover (5), and a push-pull rod cleaning and lubricating device (6) is sleeved on the circular outer portion of the movable push rod (7); The push-pull rod cleaning and lubricating device (6) comprises a metal fixing block (10), a circular outer shell (11), a circular inner shell (12) and a sponge cleaning oil absorption pad (13). The metal fixing block (10) is fixed to the center of the upper outer wall of the fixing cover (5) by a plurality of screws. The center of the upper end of the metal fixing block (10) is provided with a circular outer shell (11). The circular inner shell (12) is inserted into the circular interior of the circular outer shell (11). The sponge cleaning oil absorption pad (13) is provided on the inner wall of the circular inner shell (12). The inner wall of the sponge cleaning oil absorption pad (13) is in close contact with the circular outer part of the movable push rod (7).
2. The electric push rod assembly for a vacuum industrial furnace door according to claim 1, characterized in that: The push-pull rod cleaning and lubricating device (6) further comprises a threaded hole (14), a threaded rod (15) and a knob (16); the threaded hole (14) is arranged at the center of the front end of the circular housing (11); the threaded rod (15) is threadedly inserted into the threaded hole (14) from front to back; the knob (16) is arranged on the outer wall of the front end of the threaded rod (15); and the outer wall of the knob (16) is densely covered with anti-slip grooves to increase the friction between the knob (16) and the finger skin; the knob (16) and the threaded rod (15) are fixedly connected by welding.
3. The electric push rod assembly for a vacuum industrial furnace door according to claim 2, characterized in that: The threaded rod (15) can move backwards and firmly contact the front end outer wall of the circular inner shell (12); when the threaded rod (15) is not in contact with the outer wall of the circular inner shell (12), the circular inner shell (12) can move up and down and rotate clockwise or counterclockwise inside the circular outer shell (11).
4. The electric push rod assembly for a vacuum industrial furnace door according to claim 1, characterized in that: A push rod motor (4) is arranged on the outer wall of the upper right end of the base (2), and the push rod motor (4) is electrically connected to an external power source through an electric wire. The push rod motor (4) is transmission-connected to a movable push rod (7) through the base (2) and the fixed push rod body (3).
5. The electric push rod assembly for a vacuum industrial furnace door according to claim 1, characterized in that: A rotary joint (9) is internally threadedly inserted into the upper end of the movable push rod (7), and the diameter of the rotary joint (9) is the same as that of the movable push rod (7). A through hole (8) is longitudinally penetrated at the center of the rotary joint (9).
6. The electric push rod assembly for a vacuum industrial furnace door according to claim 1, characterized in that: The base (2) is provided with a connecting ear (1) near the center of the left bottom end, and a through hole (8) is longitudinally penetrated at the center of the inside of the connecting ear (1). The connecting ear (1), the base (2) and the fixed push rod body (3) are all made of aluminum alloy, and the outer walls of the connecting ear (1), the base (2) and the fixed push rod body (3) are also sprayed with paint.