Electromagnetic backstop
By introducing a dust cover and a mounting frame structure into the electromagnetic backstop, the problem of dust and oil entering is solved, and the damping rod and spring absorb vibrations, achieving stable operation of the electromagnetic backstop.
Patent Information
- Application Number
- CN202520279894.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing electromagnetic backstops lack dust protection at the connection between the shaft and the backstop, allowing external dust and oil to easily enter and affect their operation. In addition, the lack of anti-vibration measures causes the shaft to vibrate, affecting the effective operation of the backstop.
An electromagnetic backstop was designed. The connection between the shaft and the backstop is protected by a mounting cover and a dust cover. The position of the shaft is restricted by a fixing frame and a positioning frame. The vibration force is absorbed by a damping rod and a spring, thus achieving dust prevention and vibration reduction.
It effectively prevents dust and oil from entering, protecting the working condition of the backstop, while absorbing shaft vibration to ensure stable operation of the backstop.
Smart Images
Figure CN223908653U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of shaft coupling, specifically to an electromagnetic backstop. BACKGROUND
[0002] The electromagnetic backstop is a backstop that works by using electromagnetic principle, and its main working principle is to fix the transmission shaft by magnetic force to achieve the purpose of backstop. The electromagnetic backstop is usually composed of electromagnet, spring, brake drum or brake disc, etc. When the running direction of the conveyor belt is opposite to the direction of the clamping plate, the electromagnet is powered to generate magnetic force to fix the transmission shaft, thus realizing the backstop effect. This design makes the electromagnetic backstop have advantages in control precision and stability, and is suitable for occasions that require accurate control.
[0003] Currently, there is no good dustproof protection measure at the connection between the shaft and the backstop. When in use, foreign matters such as dust and oil stains from the outside enter the connection between the backstop and the shaft or the inside of the backstop, which will affect the working state of the backstop. Moreover, there is no corresponding anti-shaking protection measure for the shaft in the use process of the backstop in the prior art. The shaking in the rotating process of the shaft may affect the effective operation of the backstop. Therefore, the electromagnetic backstop is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing an electromagnetic backstop to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electromagnetic backstop, comprising a base and a backstop, the backstop is fixedly installed above the base, two groups of symmetrically distributed installation covers are fixedly installed on the two sides of the backstop, two groups of symmetrically distributed mounting racks are arranged above the base, a first mounting ring is rotatably installed in the installation cover, a plurality of groups of annularly distributed adjusting racks are arranged on the installation cover, the plurality of groups of adjusting racks are all rotatably connected with the installation cover through mounting shafts, a supporting rod is fixedly installed on each of the plurality of groups of adjusting racks, a dust cover is fixedly installed on the installation cover, the dust cover is fixedly connected with the plurality of groups of supporting rods respectively, a fixing frame is arranged in the mounting rack, two groups of cross-distributed supports are arranged on the two sides of the fixing frame, a plurality of groups of symmetrically distributed damping rods are arranged between the mounting rack and the fixing frame, and a second spring is sleeved on the damping rod.
[0006] As a further preferred embodiment of the technical solution, a first gear is sleeved on each of the plurality of groups of mounting shafts, a first gear ring is sleeved on the first mounting ring, and the plurality of groups of first gears are all meshingly connected with the first gear ring.
[0007] As a further preferred of the technical solution, both ends of the support are provided with sliding blocks, the sliding blocks are rotationally connected with corresponding supports through rotating shafts, and the fixed frame and the mounting frame are both fixedly provided with sliding rods.
[0008] As a further preferred of the technical solution, the sliding rods are sleeved with two groups of symmetrically distributed first springs, and the two ends of the first springs are fixedly connected with the sliding blocks and the mounting frame or the fixed frame respectively.
[0009] As a further preferred of the technical solution, the two ends of the second spring are fixedly connected with the two ends of the damping rod, and the two ends of the damping rod are fixedly connected with the mounting frame and the fixed frame.
[0010] As a further preferred of the technical solution, the second mounting ring is rotationally installed in the fixed frame, a plurality of groups of positioning frames are rotationally installed on the fixed frame in a ring shape, the plurality of groups of positioning frames are rotationally connected with the fixed frame through rotating rods, and positioning rods are rotationally installed on the plurality of groups of positioning frames.
[0011] As a further preferred of the technical solution, the second mounting ring is rotationally installed in the fixed frame, a plurality of groups of positioning frames are rotationally installed on the fixed frame in a ring shape, the plurality of groups of positioning frames are rotationally connected with the fixed frame through rotating rods, and positioning rods are rotationally installed on the plurality of groups of positioning frames.
[0012] The utility model provides a kind of electromagnetic check valve, with the following beneficial effects:
[0013] The utility model discloses a first mounting ring drives the rotation of first gear ring in the installation cover, and a plurality of groups of first gears are cooperated to make a plurality of groups of mounting shafts drive a plurality of groups of adjusting frames synchronous rotation, adjust the wrapping range of dust cover on the installation cover, so that the inner ring of dust cover is attached to the shaft rod wall installed in check valve, dust protection is carried out to the connecting place of shaft rod and check valve, to avoid the influence of dust and oil stain on check valve working effect.
[0014] The utility model discloses a fixed frame and a plurality of groups of positioning frames and positioning rods on the fixed frame realize position limitation for shaft rod on the fixed frame, and damping rod and first spring and second spring are realized for the shock absorption protection of shaft rod in the rotation process of shaft rod through the support, sliding block cooperation of both sides of fixed frame, to avoid the influence of vibration or jumping caused by shaft rod rotation on check valve operation. ACCURACY OF DRAWINGS
[0015] Figure 1 It is the structure schematic diagram of the whole utility model;
[0016] Figure 2 It is the structure separation schematic diagram of installation cover and adjusting frame of the utility model;
[0017] Figure 3 The structure separation diagram of the mounting frame and the fixing frame of the utility model is shown in the figure.
[0018] Figure 4 The utility model discloses Figure 3 The structure amplification diagram of A in the figure.
[0019] In the figure: 1, base; 2, check stopper; 3, mounting cover; 4, mounting frame; 5, first mounting ring; 6, adjusting frame; 7, mounting shaft; 8, first gear; 9, first tooth ring; 10, brace; 11, dust cover; 12, fixing frame; 13, second mounting ring; 14, positioning frame; 15, rotating rod; 16, second gear; 17, positioning rod; 18, second tooth ring; 19, support; 20, sliding block; 21, sliding rod; 22, first spring; 23, damping rod; 24, second spring. Specific embodiments
[0020] 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.
[0021] The utility model provides technical schemes: such as Figure 1 And Figure 2As shown, in this embodiment, an electromagnetic check valve includes a base 1 and a check valve 2, the check valve 2 is fixedly installed above the base 1, two groups of symmetrically distributed installation covers 3 are fixedly installed on the two sides of the check valve 2, two groups of symmetrically distributed mounting frames 4 are arranged above the base 1, a first mounting ring 5 is rotatably installed in the installation cover 3, a plurality of groups of annularly distributed adjusting frames 6 are arranged on the installation cover 3, the plurality of groups of adjusting frames 6 are rotatably connected with the installation cover 3 through mounting shafts 7, a plurality of groups of supporting rods 10 are fixedly installed on the plurality of groups of adjusting frames 6, a dust cover 11 is fixedly installed on the installation cover 3, the dust cover 11 is fixedly connected with the plurality of groups of supporting rods 10, respectively, a fixed frame 12 is arranged in the mounting frame 4, two groups of cross-distributed supports 19 are arranged on the two sides of the fixed frame 12, a plurality of groups of symmetrically distributed damping rods 23 are arranged between the mounting frame 4 and the fixed frame 12, a second spring 24 is sleeved on the damping rod 23, a first gear 8 is sleeved on the plurality of groups of mounting shafts 7, a first tooth ring 9 is sleeved on the first mounting ring 5, the plurality of groups of first gears 8 are meshedly connected with the first tooth ring 9, after the shaft rod is installed on the check valve 2 through the mounting frame 4 and the installation cover 3, the rotation of a corresponding group of mounting shafts 7 is driven by the motor in the installation cover 3, under the action of the first gear 8 and the first tooth ring 9 on the mounting shaft 7, a plurality of groups of mounting shafts 7 drive the adjusting frame 6 to rotate synchronously, a plurality of groups of adjusting frames 6 drive the corresponding supporting rods 10 to rotate synchronously in the rotating process, the diameter adjustment between a plurality of groups of supporting rods 10 is changed, so that a plurality of groups of supporting rods 10 are attached to the outer wall of the shaft rod, in the adjusting process of the supporting rod 10, the corresponding protective cover with the telescopic function is synchronously adjusted, the protective cover is attached to the outer wall of the shaft rod to protect the connection between the shaft rod and the check valve 2, and the invasion of dust or oil stains in the use process of the shaft rod is avoided.
[0022] As Figure 3 and Figure 4As shown, the both ends of the support 19 are provided with sliding blocks 20, the sliding blocks 20 are rotatably connected with the corresponding support 19 through rotating shafts, the fixed frame 12 and the mounting frame 4 are both fixedly installed with sliding rods 21, the sliding blocks 20 are slidingly sleeved with the corresponding sliding rods 21, the sliding rods 21 are sleeved with two groups of symmetrically distributed first springs 22, the both ends of the first springs 22 are fixedly connected with the sliding blocks 20 and the mounting frame 4 or the fixed frame 12 respectively, the both ends of the second spring 24 are fixedly connected with the both ends of the damping rod 23 respectively, the both ends of the damping rod 23 are fixedly connected with the mounting frame 4 and the fixed frame 12 respectively, the second mounting ring 13 is rotatably installed in the fixed frame 12, a plurality of groups of positioning frames 14 are rotatably installed on the fixed frame 12 in annular distribution, the plurality of groups of positioning frames 14 are rotatably connected with the fixed frame 12 through rotating rods 15, the positioning rods 17 are rotatably installed on the plurality of groups of positioning frames 14, the second gears 16 are sleeved on the plurality of groups of rotating rods 15, the second tooth ring 18 is sleeved on the second mounting ring 13, the plurality of groups of second gears 16 are meshingly connected with the second tooth ring 18, after the shaft rod passes through the fixed frame 12 in the mounting frame 4 to complete the installation of the backstop 2, the corresponding rotating rod 15 is driven to rotate by the motor in the fixed frame 12, the second gear 16 is driven to rotate in the rotating process of the rotating rod 15, the synchronous rotation of the positioning frame 14 driven by the plurality of groups of rotating rods 15 is realized by cooperating the plurality of groups of second gears 16 and the second tooth ring 18, so that the plurality of groups of positioning rods 17 are attached to the outer wall of the shaft rod, the position limitation of the shaft rod on the fixed frame 12 is completed, when the shaft rod is possibly shaken in the rotating process, the shaking force is transmitted to the fixed frame 12 and the support 19, the first spring 22 and the second spring 24 are extruded, the shaft rod shaking force is absorbed under the cooperation of the first spring 22 and the second spring 24 and the action of the damping rod 23, the shaking collision between the shaft rod and the backstop 2 is avoided, so as to avoid the adverse effect on the working state of the backstop 2.
[0023] The utility model provides a kind of electromagnetic check valve, specific working principle is as follows: after the shaft passes through mounting bracket 4 and installation cover 3 and is installed on check valve 2, the rotation of corresponding group of installation shaft 7 is driven by starting motor in installation cover 3, under the action of first gear 8 and first tooth ring 9 on installation shaft 7, multiple groups of installation shaft 7 drive adjusting frame 6 synchronous rotation, corresponding bracing bar 10 is driven synchronous rotation in the rotation process of multiple groups of adjusting frame 6, change the adjustment of diameter surrounded between multiple groups of bracing bar 10, so that multiple groups of bracing bar 10 are all attached to the outer wall of shaft, corresponding protective cover with telescopic effect is driven synchronous adjustment in the process of bracing bar 10 adjustment, protective cover is attached to the outer wall of shaft and protects the junction of shaft and check valve 2, avoid the invasion of dust or dirt in the use process of shaft, after the shaft passes through the fixed frame 12 in mounting bracket 4 and completes the installation with check valve 2, corresponding rotating rod 15 is driven rotation by starting motor in fixed frame 12, rotating rod 15 is driven rotation in the rotation process, the synchronous rotation of multiple groups of rotating rod 15 drive positioning frame 14 is realized by cooperation of multiple groups of second gear 16 and second tooth ring 18, further so that multiple groups of positioning rod 17 are attached to the outer wall of shaft, complete the position limitation of shaft on fixed frame 12, when the possibility of shaking in the rotation process of shaft, shaking force is transmitted to fixed frame 12 and causes extrusion to support 19, first spring 22 and second spring 24, under the action of first spring 22 and second spring 24 cooperation damping rod 23, the shaking force of shaft is absorbed, avoid the shaking collision between shaft and check valve 2, further cause the adverse effect to the working state of check valve 2.
[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An electromagnetic check valve characterized by: The utility model relates to a kind of reverse stopper, including base (1) and reverse stopper (2), the reverse stopper (2) is fixedly installed above base (1), two groups of symmetrical distribution installation cover (3) are fixedly installed on the both sides of the reverse stopper (2), two groups of symmetrical distribution mounting bracket (4) are equipped on the base (1), first mounting ring (5) is rotatably installed in the installation cover (3), a plurality of groups of annular distribution adjusting frame (6) are equipped on the installation cover (3), a plurality of groups of adjusting frame (6) are rotatably connected with installation cover (3) by mounting shaft (7), a plurality of groups of adjusting frame (6) are fixedly installed with bracing bar (10) on, dust cover (11) is fixedly installed on the installation cover (3), dust cover (11) is fixedly connected with a plurality of groups of bracing bar (10) respectively, fixed frame (12) is equipped in the mounting bracket (4), two groups of cross distribution support (19) are equipped on the both sides of the fixed frame (12), a plurality of groups of symmetrical distribution damping rod (23) are equipped between the mounting bracket (4) and fixed frame (12), second spring (24) is sleeved on the damping rod (23).
2. An electromagnetic check valve according to claim 1, characterized in that: A plurality of groups of mounting shaft (7) are sleeved with first gear (8), first tooth ring (9) is sleeved on the first mounting ring (5), a plurality of groups of first gear (8) are rotatably connected with first tooth ring (9).
3. An electromagnetic check valve according to claim 1, wherein: Both ends of the support (19) are provided with a sliding block (20), the sliding block (20) is rotatably connected with the corresponding support (19) by a rotating shaft, the fixed frame (12) and the mounting bracket (4) are both fixedly installed with a slide rod (21), the sliding block (20) is slidably sleeved with the corresponding slide rod (21).
4. A magnetic check valve according to claim 3, wherein: The slide rod (21) is sleeved with two groups of symmetrical first springs (22), and the two ends of the first spring (22) are fixedly connected with the sliding block (20) and the mounting bracket (4) or the fixed frame (12) respectively.
5. An electromagnetic check valve according to claim 1, wherein: The two ends of the second spring (24) are fixedly connected with the two ends of the damping rod (23), and the two ends of the damping rod (23) are fixedly connected with the mounting bracket (4) and the fixed frame (12) respectively.
6. An electromagnetic check valve according to claim 1, wherein: The fixed frame (12) is rotatably installed with a second mounting ring (13), a plurality of groups of annular distribution positioning frames (14) are rotatably installed on the fixed frame (12), a plurality of groups of positioning frames (14) are rotatably connected with the fixed frame (12) by a rotating rod (15), and a plurality of groups of positioning frames (14) are rotatably installed with positioning rods (17).
7. An electromagnetic check valve according to claim 6, wherein: A plurality of groups of rotating rods (15) are sleeved with second gears (16), second tooth rings (18) are sleeved on the second mounting ring (13), and a plurality of groups of second gears (16) are rotatably connected with the second tooth ring (18).