CN113847400A

CN113847400A - Variable speed type transmission instrument with limiting structure

Info

Publication number: CN113847400A
Application number: CN202111289903.2A
Authority: CN
Inventors: 黄志军; 黄稳岩
Original assignee: Hunan Luoliu Intelligent Equipment Co ltd
Current assignee: Hunan Luoliu Intelligent Equipment Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2021-12-28
Anticipated expiration: 2041-11-02
Also published as: CN113847400B

Abstract

The invention discloses a variable-speed transmission instrument with a limiting structure, which comprises a bottom plate, a limiting box, a lubricating box, a slot and a photoelectric detector, wherein a fixed frame is installed at the top of the bottom plate, the limiting box is installed on the outer wall of the fixed frame, a flexible rod is installed on the inner wall of the limiting box through a shaft, the lubricating box is installed at the top of the bottom plate, a signal transceiver is installed on the top wall inside the lubricating box, the slot is formed in the top of the bottom plate, and the photoelectric detector is installed at the top of the bottom plate. The device can be limited by installing the limiting box, the limiting rod drives the movable plate to be close to the gear at one end of the worm, the movable plate drives the movable rod to be in contact with the gear, the movable rod is prevented from rotating reversely when the worm rotates, and the movable rods are arranged on two sides of the worm, so that the worm can conveniently rotate forwards and reversely, and the limiting function is realized.

Description

Variable speed type transmission instrument with limiting structure

Technical Field

The invention relates to the technical field of transmission instruments, in particular to a variable-speed transmission instrument with a limiting structure.

Background

Mechanical transmission has various forms, and can be mainly divided into two types: firstly, friction transmission of power and motion is transmitted by means of friction force between machine parts, including belt transmission, rope transmission, friction wheel transmission and the like, stepless speed change is easy to realize in the friction transmission, the friction transmission can be suitable for transmission occasions with large shaft distance, overload slipping can also play a role in buffering and protecting a transmission device, however, the transmission can not be used in the occasions with high power and can not ensure the accurate transmission ratio, and the engagement transmission of power or motion by the engagement of the driving part and the driven part or the engagement of the intermediate part comprises gear transmission, chain transmission, spiral transmission, harmonic transmission and the like, the engagement transmission can be used in the occasions with high power and has accurate transmission ratio, but generally requires higher manufacturing precision and installation precision, and the transmission instruments adopt various transmission forms, through mutual collocation, can obtain the transmission structure that people want, main aim at improves work efficiency.

The prior transmission instrument has the following defects:

1. patent document 1.CN109194022A discloses a transmission structure, and claim of protection "includes a main body provided with electronic components; a moving member rotatably mounted on the main body; the connecting wires are respectively and electrically connected with the moving part and the electronic element; the fixing part is arranged on the main body and located at the installation position of the moving part, the connecting wire is arranged on the fixing part, and the connecting wire is fixed by the fixing part. According to the invention, the fixing part is arranged on the main body and positioned at the installation position of the moving part, and the fixing part is used for fixing the connecting wire, so that most of the connecting wire at the fixing part of the connecting wire cannot move along with the moving part, and only part of the connecting wire close to the moving part can move or rotate along with the moving part, thereby effectively avoiding that the wire terminal is easy to pull when the connecting wire and the terminal do periodic operation, and prolonging the service life of the connecting wire;

2. patent document CN102691734B discloses a transmission shaft structure, the right item of protection "includes transmission shaft and fluid pressure type overload protection ware, the transmission shaft includes coaxial primary shaft and secondary shaft, fluid pressure type overload protection ware includes the mounting bracket, bent axle and at least a pair of pneumatic cylinder, be provided with communicating pipe between the cylinder body of two pneumatic cylinders in every pair of pneumatic cylinder, be provided with two-way pressure valve on communicating pipe, the bent axle includes main shaft and connecting rod axle, the main shaft rotates with the mounting bracket and links together, the primary shaft is in the same place with the mounting bracket rigid coupling, the secondary shaft is in the same place with the main shaft rigid coupling, the connecting rod axle links together with the mounting bracket through the pneumatic cylinder. The invention provides a transmission shaft structure which can stop transmitting power when overload occurs, can automatically recover transmitting power when load meets requirements, and can buffer resistance fluctuation in the running process of a vehicle, thereby solving the problems that the transmission shaft is broken when overload occurs, so that the use cost of the vehicle is increased and inconvenience is brought to users, and the resistance changes, but the device is lack of a lubricating structure, the transmission structure contains a large number of gears, the abrasion is inevitable, the gears need to be lubricated, and the abrasion is reduced;

3. patent document CN102691734A discloses a transmission shaft structure, the right item of protection "includes transmission shaft and fluid pressure type overload protection ware, the transmission shaft includes coaxial primary shaft and secondary shaft, fluid pressure type overload protection ware includes the mounting bracket, bent axle and at least a pair of pneumatic cylinder, be provided with communicating pipe between the cylinder body of two pneumatic cylinders in every pair of pneumatic cylinder, be provided with two-way pressure valve on communicating pipe, the bent axle includes main shaft and connecting rod axle, the main shaft rotates with the mounting bracket and links together, the primary shaft is in the same place with the mounting bracket rigid coupling, the secondary shaft is in the same place with the main shaft rigid coupling, the connecting rod axle links together with the mounting bracket through the pneumatic cylinder. The invention provides a transmission shaft structure which can stop transmitting power when overload occurs, can automatically recover transmitting power when load meets requirements, and can buffer resistance fluctuation in the running process of a vehicle, thereby solving the problems that the transmission shaft is broken when overload occurs, so that the use cost of the vehicle is increased and inconvenience is brought to users, and the resistance is changed, but the device has no dismounting function, so that the adjustment is not convenient enough, the dismounting is complex, and the working load of workers is increased;

4. patent document CN112049857A discloses a transmission link structure, the claim of protection "a sliding bearing is installed at the axle hole of the big end part of the link, which is characterized in that: the top and the bottom of the sliding bearing are provided with driving surfaces which are in sliding friction fit with the crankshaft, the inner surfaces of the two sides of the sliding bearing are provided with concave oil storage grooves, the connecting rod is also provided with a lubricating oil channel which is communicated with an oil groove on the outer circular surface of the sliding bearing, the sliding bearing is provided with a through oil hole which is communicated with the oil groove and the oil storage grooves, and the two sides of the sliding bearing are provided with oil return lubricating channels. And a rolling bearing is respectively arranged on two sides of the sliding bearing in the shaft hole of the big end part of the connecting rod, and a lubricating oil channel of the big end part of the connecting rod is communicated with one side of the rolling bearing through a branch. The transmission connecting rod structure has the advantages of less heat productivity, strong load impact bearing capacity and suitability for high-speed heavy-load presses, but the device lacks a detection structure for the device, the normal work of the device is the key for ensuring the transmission, and the quality of parts affects the transmission efficiency, so the device needs to be detected.

Disclosure of Invention

The invention aims to provide a variable-speed transmission instrument with a limiting structure, so as to solve the problems of lack of the limiting structure, lack of a lubricating structure, lack of a disassembling structure and lack of a detecting structure in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a variable-speed transmission instrument with a limiting structure comprises a bottom plate, a limiting box, a lubricating box, a slot and a photoelectric detector, wherein a fixed frame is installed at the top of the bottom plate, and the limiting box is installed on the outer wall of the fixed frame;

the outer wall of the limiting box is provided with a limiting rod in a penetrating mode, the outer wall of one end of the limiting rod is provided with a first spring, one end of the first spring is provided with a fixed rod, one end of the limiting rod is provided with a movable plate, the movable rod of the movable plate is provided with a second spring, and the outer wall of the movable plate is provided with an L-shaped blocking rod;

the inner wall of the limiting box is provided with a flexible rod through a shaft, the top of the bottom plate is provided with a lubricating box, the top wall of the interior of the lubricating box is provided with a signal transceiver, the top of the bottom plate is provided with a slot, and the top of the bottom plate is provided with a photoelectric detector.

Preferably, the threaded rod is installed to the bottom of toughness pole, and the outer wall of spacing case is extended to the one end of threaded rod.

Preferably, the motor is installed at the top of bottom plate, the mount outer wall runs through and installs the worm, the outer wall of worm encircles and installs the belt, and the worm passes through belt drive with the output of motor and is connected, No. two mounts are installed at the top of bottom plate, No. two shafts are installed through the outer wall of mount, the turbine is installed to the outer wall of a shaft, and the turbine meshes with the worm mutually, No. one gear is installed to the outer wall of a shaft, No. two boards are installed at the top of bottom plate, No. two shafts are installed through the outer wall of No. two boards, No. two gears are installed to the one end of No. two shafts, the chain is installed to the outer wall of No. two gears, and No. two gears pass through chain drive with a gear and are connected, No. one bevel gear is installed to the other end of No. two shafts.

Preferably, solid fixed ring is installed at the top of bottom plate, and solid fixed ring's inner wall runs through and installs No. three axles, and No. two bevel gear is installed to No. three one end of axle, and No. two bevel gear meshes with a bevel gear mutually, and No. two axles all install the reflection of light subsides with No. three outer walls of axle, and the control button is installed at the top of bottom plate.

Preferably, the observation window is installed in the front of lubricated case, and the buckler is installed to the inner wall of lubricated case, and the water pump is installed to the inside diapire of buckler, and the input of water pump extends into the inside of lubricated case, and the shunt is installed to the output of water pump, and a plurality of spring posts are installed to the inside diapire of shunt, and the closing plate is installed at the top of spring post, and the electro-magnet is installed to the inner wall of closing plate, and lubricated pipe is installed in running through at the top of shunt, and sealed piece is installed to the outer wall of lubricated pipe, and magnet is installed to the inner wall of sealed piece.

Preferably, the warning indicator is installed at the top of the lubricating box, the warning lamp is installed on the inner bottom wall of the warning indicator, the floating rod is installed on the inner wall of the lubricating box, the floating ball is installed at one end of the floating rod, and the refraction plate is installed on the outer wall of the floating ball.

Preferably, the inner wall of slot runs through and installs the inserted bar, the outer wall of inserted bar encircles and installs reset spring, the top of bottom plate runs through and installs the push rod, the outer wall of push rod encircles and installs No. three springs, drive gear is installed to the bottom of push rod, the slip ring is installed to the inner wall of bottom plate, the inner wall of slip ring runs through and installs the toothed disc, the push pedal is installed to the one end of toothed disc, the inside diapire of slot runs through and installs the lifter, the outer wall of lifter encircles and installs No. four springs, the lever of L type is installed to the inner wall of bottom plate.

Preferably, laser emitter and laser receiver are installed to photoelectric detector's inner wall, and the top of bottom plate is installed and is detected the post, and detects the below that the post is located the qualified chain of belt, and the top that detects the post is run through and is installed the test rod, and the outer wall of test rod encircles and installs No. five springs, detects the inner wall of post and installs the backup pad, and the switch is installed at the top of backup pad, and bee calling organ is installed to the bottom of backup pad.

Preferably, the variable speed drive apparatus operates as follows:

s1, when limiting is carried out, a limiting rod is pressed, the limiting rod moves to drive a first spring to extend, the limiting rod drives a movable plate to be close to a gear at one end of a worm, the movable plate drives a movable rod to be in contact with the gear, the movable rod is limited by a blocking rod, when the worm rotates, the movable rod can prevent the worm from rotating reversely, the movable rods are arranged on two sides, the worm can conveniently rotate forwards and reversely, the limiting function is realized, the limiting rod moves to drive a fixed rod to move, when the fixed rod slides over the flexible rod, the flexible rod limits the fixed rod, a threaded rod can be rotated during adjustment, and the threaded rod moves downwards to drive the flexible rod to move downwards, so that the limiting rod can move;

s2, when the device is lubricated, a water pump is started, lubricating liquid in a lubricating box is pumped out by the water pump, then the interior of a belt shunt is conveyed, a plurality of lubricating pipes are mounted to lubricate the transmission structure of each part, an electromagnet is electrified and is introduced with reverse current, so that a magnetic field generated by the electromagnet and a magnetic field generated by the magnet repel each other, a spring column contracts to separate a sealing plate from a sealing block, the lubricating liquid enters the interior of the lubricating pipes to realize the lubricating function of the device, a signal transceiver can transmit and receive signals, a floating rod floats on the liquid level due to the action of a floating ball, when a signal transmitted by the signal transceiver is reflected by a refraction plate, the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, and when the content is low, a warning lamp is lighted to warn workers;

s3, when a plurality of fixing frames and plates are installed, the plates or the fixing frames are inserted into slots, a pressing rod is extruded, the pressing rod moves downwards to drive a third spring to extend, the pressing rod rotates simultaneously, the pressing rod rotates to drive a driving gear to rotate, the driving gear rotates to drive a gear plate to move, the gear plate moves to drive a push plate to move, then the push plate pushes the inserting rod, the inserting rod moves to drive a reset spring to extend, the inserting rod is inserted into a groove of the plates or the fixing frames to fix the plates and the fixing frames, the plates or the fixing frames extrude a lifting rod, the lifting rod moves downwards to drive a fourth spring to extend, then the lifting rod impacts a lever, one end of the lever is tilted, the push plate is fixed, and the installation function is achieved;

s4 when detecting the degree of relaxation of belt and chain, with device stop work, when chain or belt lax, the chain extrudees the test bar, the test bar moves down and drives the extension of No. five springs, test bar striking switch, the switch passes through wire electric connection with bee calling organ, bee calling organ sound is warned afterwards, the degree of relaxation to chain or belt detects, when the rotational speed of counter shaft detects, photoelectric detector launches laser, by the reflection when laser contact is pasted to the reflection of light, photoelectric detector received signal afterwards, can measure the rotational speed of counter shaft from this.

Compared with the prior art, the invention has the beneficial effects that:

1. the device can be limited by installing the limiting box, when limiting is carried out, the limiting rod is pressed, the limiting rod moves to drive the first spring to extend, the limiting rod drives the movable plate to be close to the gear at one end of the worm, the movable plate drives the movable rod to be in contact with the gear, the movable rod is limited by the blocking rod, when the worm rotates, the movable rod can be prevented from rotating reversely, the movable rods are arranged on two sides, the worm can conveniently rotate forwards and reversely, the limiting function is realized, the limiting rod moves to drive the fixed rod to move, when the fixed rod slides over the flexible rod, the flexible rod limits the fixed rod, the threaded rod can be rotated during adjustment, and the threaded rod moves downwards to drive the flexible rod to move downwards, so that the limiting rod can move;

2. the invention can lubricate the device by installing the lubricating box, when the device is lubricated, starting the water pump, pumping out the lubricating liquid in the lubricating box by the water pump, then conveying the interior of the belt splitter, the transmission structure of each part can be lubricated by installing a plurality of lubricating pipes, the electromagnet is electrified and is introduced with reverse current, the magnetic field generated by the electromagnet and the magnetic field generated by the magnet are mutually repelled, the spring column is contracted, the sealing plate is separated from the sealing block, the lubricating liquid enters the lubricating pipe to realize the lubricating function of the device, the signal transceiver can transmit and receive signals, the floating rod floats on the liquid level under the action of the floating ball, when the signal transmitted by the signal transceiver is reflected by the refraction plate, the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, and when the content is lower, the warning lamp is turned on to warn workers;

3. the device can be conveniently mounted and dismounted by installing the slot, when a plurality of fixing frames and plates are mounted, the plates or the fixing frames are inserted into the slot, the pressing rod is extruded, the pressing rod moves downwards to drive the third spring to extend, the pressing rod is rotated at the same time, the pressing rod rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear plate to move, the gear plate moves to drive the push plate to move, then the push plate pushes the inserting rod, the inserting rod moves to drive the reset spring to extend, the inserting rod is inserted into the groove of the plates or the fixing frames to fix the plates and the fixing frames, the plates or the fixing frames extrude the lifting rod, the lifting rod moves downwards to drive the fourth spring to extend, then the lifting rod impacts the lever, one end of the lever tilts up to fix the push plate, and the mounting function is realized;

4. the device can detect the rotating speed and the abrasion of the chain by installing the detection column and the photoelectric detector, when the tension of the belt and the chain is detected, the device stops working, when the chain or the belt is loosened, the chain extrudes the detection rod, the detection rod moves downwards to drive the five springs to extend, the detection rod impacts the switch, the switch is electrically connected with the buzzer through a lead, then the buzzer sends out sound to warn and detect the loosening degree of the chain or the belt, when the rotating speed of the shaft is detected, the photoelectric detector emits laser, when the laser contacts the light reflecting paste, the laser is reflected, then the photoelectric detector receives signals, and therefore the rotating speed of the shaft can be measured.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic diagram of the structure of FIG. 1 at C in accordance with the present invention;

FIG. 3 is a schematic view of a portion of the spacing box of the present invention;

FIG. 4 is a schematic view of the structure of part A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of a portion of the lubrication box of the present invention;

FIG. 6 is a schematic view of the structure of portion B of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of a slot portion of the present invention;

FIG. 8 is a schematic view of a partial structure of a detection post according to the present invention.

In the figure: 1. a base plate; 101. a motor; 102. a belt; 103. a fixed mount; 104. a worm; 105. a second fixing frame; 106. a first shaft; 107. a second plate; 108. a chain; 109. a first bevel gear; 110. a fixing ring; 111. a second bevel gear; 112. a control button; 2. a limiting box; 201. a limiting rod; 202. a first spring; 203. fixing the rod; 204. moving the plate; 205. a movable rod; 206. a second spring; 207. a blocking lever; 3. a ductile rod; 301. a threaded rod; 4. a lubrication box; 401. an observation window; 402. a waterproof shell; 403. a water pump; 404. a flow divider; 405. a spring post; 406. a sealing plate; 407. an electromagnet; 408. a lubrication tube; 409. a sealing block; 5. a signal transceiver; 501. an alarm; 502. a warning light; 503. a float rod; 504. a floating ball; 505. a light refracting plate; 6. a slot; 601. inserting a rod; 602. pressing the rod; 603. a third spring; 604. a gear plate; 605. pushing the plate; 606. a lifting rod; 607. a fourth spring; 608. a lever; 7. a photodetector; 701. a detection column; 702. a detection lever; 703. a fifth spring; 704. a support plate; 705. a switch; 706. a buzzer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: referring to fig. 1 and fig. 2, an embodiment of the present invention: a variable speed type transmission instrument with a limiting structure comprises a bottom plate 1, a limiting box 2, a lubricating box 4, a slot 6 and a photoelectric detector 7, wherein a fixing frame 103 is installed at the top of the bottom plate 1, the limiting box 2 is installed on the outer wall of the fixing frame 103, a flexible rod 3 is installed on the inner wall of the limiting box 2 through a shaft, the lubricating box 4 is installed at the top of the bottom plate 1, a signal transceiver 5 is installed on the top wall inside the lubricating box 4, the slot 6 is arranged at the top of the bottom plate 1, the photoelectric detector 7 is installed at the top of the bottom plate 1, a motor 101 is installed at the top of the bottom plate 1, a worm 104 is installed on the outer wall of the fixing frame 103 in a penetrating manner, a belt 102 is installed on the outer wall of the worm 104 in a surrounding manner, the worm 104 is in transmission connection with the output end of the motor 101 through the belt 102, a second fixing frame 105 is installed at the top of the bottom plate 1, a first shaft 106 is installed on the outer wall of the second fixing frame 105 in a penetrating manner, and a turbine is installed on the outer wall of the first shaft 106, the worm wheel is meshed with the worm 104, the first gear is installed on the outer wall of the first shaft 106, the second plate 107 is installed on the top of the bottom plate 1, the second shaft is installed on the outer wall of the second plate 107 in a penetrating mode, the second gear is installed at one end of the second shaft, the chain 108 is installed on the outer wall of the second gear, the second gear is in transmission connection with the first gear through the chain 108, the first bevel gear 109 is installed at the other end of the second shaft, the fixing ring 110 is installed on the top of the bottom plate 1, the third shaft is installed on the inner wall of the fixing ring 110 in a penetrating mode, the second bevel gear 111 is installed at one end of the third shaft, the second bevel gear 111 is meshed with the first bevel gear 109, the reflecting pastes are installed on the outer walls of the second shaft and the third shaft, the control button 112 is installed on the top of the bottom plate 1, the control button 112 can control the forward and reverse rotation of the motor 101, the motor 101 drives the belt 102 to rotate, the worm 104 drives the worm wheel to rotate, the turbine drives the first shaft 106 to rotate, the first shaft 106 drives the first gear to rotate, the first gear drives the chain 108 to rotate, the chain 108 drives the second shaft to rotate, the second shaft drives the first bevel gear 109 to rotate, the first bevel gear 109 drives the second bevel gear 111 to rotate, and the second bevel gear 111 drives the third shaft to rotate, so that a transmission function is realized.

Example 2: referring to fig. 3 and 4, an embodiment of the present invention: a variable speed type transmission instrument with a limiting structure is characterized in that a limiting rod 201 penetrates through the outer wall of a limiting box 2, a first spring 202 is installed on the outer wall of one end of the limiting rod 201, a fixed rod 203 is installed on one end of the first spring 202, a movable plate 204 is installed on one end of the limiting rod 201, a movable rod 205 of the movable plate 204, a second spring 206 is installed on the outer wall of the movable rod 205, an L-shaped stop rod 207 is installed on the outer wall of the movable plate 204, a threaded rod 301 is installed at the bottom of a flexible rod 3, one end of the threaded rod 301 extends out of the outer wall of the limiting box 2, when limiting is carried out, the limiting rod 201 is pressed, the limiting rod 201 moves to drive the first spring 202 to extend, the limiting rod 201 drives the movable plate 204 to be close to a gear at one end of a worm 104, the movable rod 205 is driven by the movable plate 204 to be in contact with the gear, the stop rod 205 limits the movable rod 207, when the worm 104 rotates, the movable rod 205 can prevent the worm 104 from rotating, all be equipped with movable rod 205 through both sides, can make things convenient for worm 104 to carry out corotation and reversal, realize limit function, gag lever post 201 removes and drives dead lever 203 and remove, and when dead lever 203 slipped toughness pole 3, toughness pole 3 restricted it, can rotate threaded rod 301 during the adjustment, and threaded rod 301 removes downwards and drives toughness pole 3 and remove downwards for gag lever post 201 can remove.

Example 3: referring to fig. 5 and 6, an embodiment of the present invention: a variable-speed transmission instrument with a limiting structure is characterized in that an observation window 401 is installed on the front face of a lubricating box 4, a waterproof shell 402 is installed on the inner wall of the lubricating box 4, a water pump 403 is installed on the inner bottom wall of the waterproof shell 402, the input end of the water pump 403 extends into the lubricating box 4, a flow divider 404 is installed at the output end of the water pump 403, a plurality of spring columns 405 are installed on the inner bottom wall of the flow divider 404, a sealing plate 406 is installed at the tops of the spring columns 405, an electromagnet 407 is installed on the inner wall of the sealing plate 406, a lubricating pipe 408 is installed at the top of the flow divider 404 in a penetrating mode, a sealing block 409 is installed on the outer wall of the lubricating pipe 408, a magnet is installed on the inner wall of the sealing block 409, an alarm 501 is installed at the top of the lubricating box 4, an alarm lamp 502 is installed on the inner bottom wall of the alarm 501, a floating rod 503 is installed on the inner wall of the lubricating box 4, a floating ball 504 is installed on one end of the floating rod 503, a refraction plate 505 is installed on the outer wall of the floating ball 504, when the device is lubricated, the water pump 403 is started, the water pump 403 pumps out the lubricating liquid in the lubricating tank 4, then the inside of the belt diverter 404 is conveyed, the transmission structure of each part can be lubricated by installing a plurality of lubricating pipes 408, the electromagnet 407 is electrified, reverse current is introduced, so that the magnetic field generated by the electromagnet 407 and the magnetic field generated by the magnet repel each other, the spring post 405 contracts, so that the sealing plate 406 is separated from the sealing block 409, the lubricating liquid enters the lubricating pipe 408 to realize the lubricating function of the device, the signal transceiver 5 can transmit and receive signals, the floating rod 503 floats on the liquid surface under the action of the floating ball 504, when the signal transmitted by the signal transceiver 5 is reflected by the refracting plate 505, the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, and the warning lamp 502 is lighted up to warn the staff when the content is low.

Example 4: referring to fig. 7, an embodiment of the present invention: a variable speed type transmission instrument with a limiting structure is characterized in that an inserting rod 601 penetrates through the inner wall of a slot 6, a reset spring is arranged around the outer wall of the inserting rod 601, a pressing rod 602 penetrates through the top of a bottom plate 1, a third spring 603 is arranged around the outer wall of the pressing rod 602, a driving gear is arranged at the bottom of the pressing rod 602, a sliding ring is arranged on the inner wall of the bottom plate 1, a gear plate 604 penetrates through the inner wall of the sliding ring, a push plate 605 is arranged at one end of the gear plate 604, a lifting rod 606 penetrates through the inner bottom wall of the slot 6, a fourth spring 607 is arranged around the outer wall of the lifting rod 606, an L-shaped lever 608 is arranged on the inner wall of the bottom plate 1, when a plurality of fixing frames and plates are arranged, the plates or the fixing frames are inserted into the slot 6, the pressing rod 602 is squeezed, the pressing rod 602 moves downwards to drive the third spring 603 to extend, the pressing rod 602 rotates simultaneously, the pressing rod 602 rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear plate 604 to move, the gear plate 604 moves to drive the push plate 605 to move, then the push plate 605 pushes the inserted link 601, the inserted link 601 moves to drive the reset spring to extend, the inserted link 601 is inserted into a groove of the plate or the fixing frame to fix the plate and the fixing frame, the plate or the fixing frame extrudes the lifting link 606, the lifting link 606 moves downwards to drive the fourth spring 607 to extend, then the lifting link 606 impacts the lever 608, one end of the lever 608 tilts, the push plate 605 is fixed, and the installation function is achieved.

Example 5: referring to fig. 8, an embodiment of the present invention: a variable speed type transmission instrument with a limiting structure is disclosed, wherein a laser transmitter and a laser receiver are installed on the inner wall of a photoelectric detector 7, a detection column 701 is installed on the top of a bottom plate 1, the detection column 701 is located below a qualified chain 108 of a belt 102, a detection rod 702 is installed on the top of the detection column 701 in a penetrating mode, a fifth spring 703 is installed on the outer wall of the detection rod 702 in a surrounding mode, a support plate 704 is installed on the inner wall of the detection column 701, a switch 705 is installed on the top of the support plate 704, a buzzer 706 is installed at the bottom of the support plate 704, when the tension of the belt 102 and the tension of the chain 108 are detected, the device stops working, when the chain 108 or the belt 102 is loosened, the chain 108 extrudes the detection rod 702, the detection rod 702 moves downwards to drive the fifth spring 703 to extend, the detection rod 702 impacts the switch 705, the switch 705 is electrically connected with the buzzer 706 through a lead, and then the buzzer 706 gives out a sound for warning, the slack of the chain 108 or the belt 102 is detected, and when the rotation speed of the shaft is detected, the photodetector 7 emits laser light, which is reflected when the laser light contacts the reflective sticker, and then the photodetector 7 receives a signal, whereby the rotation speed of the shaft can be measured.

Further, the variable speed transmission device comprises the following working steps:

s1, when limiting is carried out, a limiting rod 201 is pressed, the limiting rod 201 moves to drive a first spring 202 to extend, the limiting rod 201 drives a moving plate 204 to be close to a gear at one end of a worm 104, the moving plate 204 drives a moving rod 205 to be in contact with the gear, a blocking rod 205 limits the moving rod 207, when the worm 104 rotates, the moving rod 205 can prevent the worm 104 from rotating reversely, the moving rod 205 is arranged on two sides of the worm 104, the worm 104 can conveniently rotate forwards and reversely, the limiting function is achieved, the limiting rod 201 moves to drive a fixed rod 203 to move, when the fixed rod 203 slides over a flexible rod 3, the flexible rod 3 limits the fixed rod, during adjustment, a threaded rod 301 can be rotated, the threaded rod 301 moves downwards to drive the flexible rod 3 to move downwards, and the limiting rod 201 can move;

s2, when the device is lubricated, the water pump 403 is started, the water pump 403 pumps out the lubricating liquid in the lubricating box 4, then the inside of the belt diverter 404 is conveyed, the transmission structure of each part can be lubricated by installing a plurality of lubricating pipes 408, the electromagnet 407 is electrified, reverse current is introduced, so that the magnetic field generated by the electromagnet 407 and the magnetic field generated by the magnet repel each other, the spring post 405 contracts, so that the sealing plate 406 is separated from the sealing block 409, the lubricating liquid enters the lubricating pipe 408 to realize the lubricating function of the device, the signal transceiver 5 can transmit and receive signals, the floating rod 503 floats on the liquid surface under the action of the floating ball 504, when the signal transmitted by the signal transceiver 5 is reflected by the refracting plate 505, the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, and when the content is lower, the warning lamp 502 is lighted up to warn workers;

s3, when a plurality of fixing frames and boards are installed, the boards or the fixing frames are inserted into the slots 6, the pressing rod 602 is extruded, the pressing rod 602 moves downwards to drive the third spring 603 to extend, meanwhile, the pressing rod 602 rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear board 604 to move, the gear board 604 moves to drive the push plate 605 to move, then, the push plate 605 pushes the inserting rod 601, the inserting rod 601 moves to drive the reset spring to extend, the inserting rod 601 is inserted into a groove of the board or the fixing frame to fix the board or the fixing frame, the board or the fixing frames extrude the lifting rod 606, the lifting rod 606 moves downwards to drive the fourth spring 607 to extend, then, the lifting rod 606 impacts the lever 608, one end of the lever 608 tilts up, the push plate 605 is fixed, and the installation function is achieved;

s4, when the tension of the belt 102 and the chain 108 is detected, the device stops working, when the chain 108 or the belt 102 is loosened, the chain 108 extrudes the detection rod 702, the detection rod 702 moves downwards to drive the five-number spring 703 to extend, the detection rod 702 impacts the switch 705, the switch 705 is electrically connected with the buzzer 706 through a conducting wire, then the buzzer 706 gives out a sound to warn, the tension of the chain 108 or the belt 102 is detected, when the rotating speed of a shaft is detected, the photoelectric detector 7 emits laser, when the laser contacts a light reflecting paste, the laser is reflected, then the photoelectric detector 7 receives a signal, and therefore the rotating speed of the shaft can be measured.

The working principle is that firstly, when limiting is carried out, the limiting rod 201 is pressed, the limiting rod 201 moves to drive the first spring 202 to extend, the limiting rod 201 drives the moving plate 204 to be close to a gear at one end of the worm 104, the moving plate 204 drives the moving rod 205 to be in contact with the gear, the blocking rod 205 limits the moving rod 207, when the worm 104 rotates, the moving rod 205 can prevent the worm 104 from rotating reversely, the moving rod 205 is arranged on two sides of the worm 104, so that the worm 104 can conveniently rotate forwards and reversely, the limiting function is realized, the limiting rod 201 moves to drive the fixed rod 203 to move, when the fixed rod 203 slides over the flexible rod 3, the flexible rod 3 limits the fixed rod, when adjustment is carried out, the threaded rod 301 can be rotated, and the threaded rod 301 moves downwards to drive the flexible rod 3 to move downwards, so that the limiting rod 201 can move;

when the device is subsequently lubricated, the water pump 403 is activated, the water pump 403 pumps out the lubricating fluid in the lubricating tank 4, and then the inside of the belt diverter 404 is conveyed, the transmission structure of each part can be lubricated by installing a plurality of lubricating pipes 408, the electromagnet 407 is electrified, reverse current is introduced, so that the magnetic field generated by the electromagnet 407 and the magnetic field generated by the magnet repel each other, the spring post 405 contracts, so that the sealing plate 406 is separated from the sealing block 409, the lubricating liquid enters the lubricating pipe 408 to realize the lubricating function of the device, the signal transceiver 5 can transmit and receive signals, the floating rod 503 floats on the liquid surface under the action of the floating ball 504, when the signal transmitted by the signal transceiver 5 is reflected by the refracting plate 505, the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, and when the content is lower, the warning lamp 502 is lighted up to warn workers;

when a plurality of fixing frames and boards are installed, the boards or the fixing frames are inserted into the slots 6, the pressing rod 602 is extruded, the pressing rod 602 moves downwards to drive the third spring 603 to extend, meanwhile, the pressing rod 602 rotates to drive the driving gear to rotate, the driving gear rotates to drive the gear board 604 to move, the gear board 604 moves to drive the push plate 605 to move, then, the push plate 605 pushes the inserting rod 601, the inserting rod 601 moves to drive the reset spring to extend, the inserting rod 601 is inserted into a groove of the boards or the fixing frames to fix the boards and the fixing frames, the boards or the fixing frames extrude the lifting rod 606, the lifting rod 606 moves downwards to drive the fourth spring 607 to extend, then, the lifting rod 606 impacts the lever 608, one end of the lever 608 is tilted, and the push plate 605 is fixed, so that the installation function is realized;

finally, when the tension of the belt 102 and the chain 108 is detected, the device stops working, when the chain 108 or the belt 102 is loosened, the chain 108 extrudes the detection rod 702, the detection rod 702 moves downwards to drive the five-gauge spring 703 to extend, the detection rod 702 impacts the switch 705, the switch 705 is electrically connected with the buzzer 706 through a wire, then the buzzer 706 gives out a sound to warn, the loosening degree of the chain 108 or the belt 102 is detected, when the rotating speed of the shaft is detected, the photoelectric detector 7 emits laser, when the laser contacts a light reflecting paste, the laser is reflected, then the photoelectric detector 7 receives a signal, and therefore the rotating speed of the shaft can be measured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a variable speed type transmission instrument with limit structure, includes bottom plate (1), spacing case (2), lubricated case (4), slot (6) and photoelectric detector (7), its characterized in that: a fixing frame (103) is installed at the top of the bottom plate (1), and a limiting box (2) is installed on the outer wall of the fixing frame (103);

a limiting rod (201) is installed on the outer wall of the limiting box (2) in a penetrating mode, a first spring (202) is installed on the outer wall of one end of the limiting rod (201), a fixing rod (203) is installed on one end of the first spring (202), a moving plate (204) is installed on one end of the limiting rod (201), a moving rod (205) of the moving plate (204), a second spring (206) is installed on the outer wall of the moving rod (205), and an L-shaped blocking rod (207) is installed on the outer wall of the moving plate (204);

the inner wall of spacing case (2) is installed toughness pole (3) through the axle, lubricated case (4) are installed at the top of bottom plate (1), signal transceiver (5) are installed to the roof of the inside of lubricated case (4), the top of bottom plate (1) is equipped with slot (6), photoelectric detector (7) are installed at the top of bottom plate (1).

2. A variable speed drive with a limiting structure according to claim 1, wherein: threaded rod (301) is installed to the bottom of toughness pole (3), and the outer wall of spacing case (2) is extended to the one end of threaded rod (301).

3. A variable speed drive with a limiting structure according to claim 1, wherein: the motor (101) is installed at the top of the bottom plate (1), the worm (104) is installed on the outer wall of the fixing frame (103) in a penetrating mode, the belt (102) is installed on the outer wall of the worm (104) in a surrounding mode, the worm (104) is in transmission connection with the output end of the motor (101) through the belt (102), the second fixing frame (105) is installed at the top of the bottom plate (1), the first shaft (106) is installed on the outer wall of the second fixing frame (105) in a penetrating mode, the worm wheel is installed on the outer wall of the first shaft (106) and meshed with the worm (104), the first gear is installed on the outer wall of the first shaft (106), the second plate (107) is installed at the top of the bottom plate (1), the second shaft is installed on the outer wall of the second plate (107) in a penetrating mode, the second gear is installed at one end of the second shaft, the chain (108) is installed on the outer wall of the second gear, and the second gear is in transmission connection with the first gear through the chain (108), the other end of the second shaft is provided with a first bevel gear (109).

4. A variable speed drive with a limiting structure according to claim 1, wherein: fixed ring (110) are installed at the top of bottom plate (1), and the inner wall of fixed ring (110) runs through and installs No. three axles, and No. two bevel gear (111) are installed to the one end of No. three axles, and No. two bevel gear (111) mesh mutually with bevel gear (109), and No. two axles all install reflection of light subsides with the outer wall of No. three axles, and control button (112) are installed at the top of bottom plate (1).

5. A variable speed drive with a limiting structure according to claim 1, wherein: observation window (401) is installed in the front of lubricated case (4), waterproof case (402) are installed to the inner wall of lubricated case (4), water pump (403) are installed to the inside diapire of waterproof case (402), and the input of water pump (403) extends into the inside of lubricated case (4), shunt (404) are installed to the output of water pump (403), a plurality of spring posts (405) are installed to the inside diapire of shunt (404), closing plate (406) are installed at the top of spring post (405), electro-magnet (407) are installed to the inner wall of closing plate (406), lubricated pipe (408) are installed through at the top of shunt (404), seal block (409) are installed to the outer wall of lubricated pipe (408), magnet is installed to the inner wall of seal block (409).

6. A variable speed drive with a limiting structure according to claim 1, wherein: warning indicator (501) are installed at the top of lubricating box (4), warning light (502) are installed to the inside diapire of warning indicator (501), and floating rod (503) are installed to the inner wall of lubricating box (4), and floater (504) are installed to the one end of floating rod (503), and refraction board (505) are installed to the outer wall of floater (504).

7. A variable speed drive with a limiting structure according to claim 1, wherein: the inner wall of slot (6) runs through and installs inserted bar (601), the outer wall of inserted bar (601) encircles and installs reset spring, the top of bottom plate (1) is run through and is installed and press pole (602), the outer wall of pressing pole (602) encircles and installs No. three spring (603), drive gear is installed to the bottom of pressing pole (602), the slip ring is installed to the inner wall of bottom plate (1), the inner wall of slip ring runs through and installs gear board (604), push pedal (605) are installed to the one end of gear board (604), the inside diapire of slot (6) runs through and installs lifter (606), the outer wall of lifter (606) encircles and installs No. four spring (607), lever (608) of L type is installed to the inner wall of bottom plate (1).

8. A variable speed drive with a limiting structure according to claim 1, wherein: laser emitter and laser receiver are installed to the inner wall of photoelectric detector (7), the top of bottom plate (1) is installed and is detected post (701), and detect the below that post (701) are located qualified chain (108) of belt (102), the top of detecting post (701) is run through and is installed test bar (702), the outer wall of test bar (702) is encircleed and is installed No. five spring (703), backup pad (704) is installed to the inner wall of detecting post (701), switch (705) are installed at the top of backup pad (704), bee calling organ (706) are installed to the bottom of backup pad (704).

9. The transmission device with a limiting structure according to any one of claims 1 to 8, wherein the transmission device is operated as follows:

s1, when limiting is carried out, a limiting rod (201) is pressed, the limiting rod (201) moves to drive a first spring (202) to extend, the limiting rod (201) drives a moving plate (204) to be close to a gear at one end of a worm (104), the moving plate (204) drives a moving rod (205) to be in contact with the gear, the blocking rod (205) limits the moving rod (207), when the worm (104) rotates, the movable rod (205) can prevent the worm from reversing, and the movable rods (205) are arranged on two sides, the worm (104) can conveniently rotate forwards and backwards to realize the limiting function, the limiting rod (201) moves to drive the fixing rod (203) to move, when the fixing rod (203) slides over the flexible rod (3), the flexible rod (3) limits the flexible rod, the threaded rod (301) can be rotated during adjustment, and the threaded rod (301) moves downwards to drive the flexible rod (3) to move downwards, so that the limiting rod (201) can move;

s2, when the device is lubricated, a water pump (403) is started, the water pump (403) pumps out lubricating liquid in a lubricating box (4), then the interior of a belt shunt (404) is conveyed, a transmission structure of each part can be lubricated by installing a plurality of lubricating pipes (408), an electromagnet (407) is electrified, reverse current is introduced, a magnetic field generated by the electromagnet (407) and a magnetic field generated by the magnet repel each other, a spring column (405) contracts, a sealing plate (406) is separated from a sealing block (409), the lubricating liquid enters the interior of the lubricating pipes (408), the lubricating function of the device is realized, a signal transceiver (5) can transmit and receive signals, a floating rod 503 floats on the liquid level under the action of a floating ball (504), and when a signal transmitted by the signal transceiver (5) is reflected by a refraction plate (505), the content of the lubricating liquid can be detected by calculating the propagation time and the signal speed, when the content is low, the warning lamp (502) is lighted up to warn the staff;

s3, when a plurality of fixed frames and plates are installed, the plates or the fixed frames are inserted into the slots (6), the pressing rods (602) are squeezed, the pressing rods (602) move downwards to drive the third springs (603) to extend, meanwhile, the pressing rods (602) are rotated, the pressing rods (602) rotate to drive the driving gears to rotate, the driving gears rotate to drive the gear plates (604) to move, the gear plates (604) move to drive the push plates (605) to move, then, the push plates (605) push the inserted rods (601), the inserted rods (601) move to drive the reset springs to extend, the inserted rods (601) are inserted into grooves of the plates or the fixed frames, the plates and the fixed frames are fixed, the lifting rods (606) are squeezed by the plates or the fixed frames, the lifting rods (606) move downwards to drive the fourth springs (607) to extend, then, the lifting rods (606) impact the levers (608), one ends of the levers (608) are tilted, and the push plates (605) are fixed, the installation function is realized;

s4, when the tension of the belt (102) and the tension of the chain (108) are detected, the device stops working, when the chain (108) or the belt (102) is loosened, the chain (108) extrudes the detection rod (702), the detection rod (702) moves downwards to drive the five springs (703) to extend, the detection rod (702) impacts the switch (705), the switch (705) is electrically connected with the buzzer (706) through a conducting wire, then the buzzer (706) gives out a sound to warn, the loosening degree of the chain (108) or the belt (102) is detected, when the rotating speed of a shaft is detected, the photoelectric detector (7) emits laser, when the laser contacts the light reflecting paste, the laser is reflected, then the photoelectric detector (7) receives signals, and therefore the rotating speed of the shaft can be measured.