CN221053749U - Bidirectional fixed chain stopper - Google Patents
Bidirectional fixed chain stopper Download PDFInfo
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- CN221053749U CN221053749U CN202323237523.1U CN202323237523U CN221053749U CN 221053749 U CN221053749 U CN 221053749U CN 202323237523 U CN202323237523 U CN 202323237523U CN 221053749 U CN221053749 U CN 221053749U
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- chain stopper
- adjusting frame
- chain
- groove
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 description 13
- 239000003245 coal Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a bidirectional fixed chain stopper which comprises a chain stopper body, wherein the bottom of the chain stopper body is provided with a groove for passing through a chain and a limiting piece for inserting a matching piece of the chain stopper; the chain stopper body comprises a fixed body provided with a groove and a limiting piece and an adjusting frame arranged on the fixed body in an up-and-down sliding way; the clamping jaws capable of swinging up and down are arranged at two ends of the adjusting frame, and a locking mechanism is arranged between the fixed machine body and the adjusting frame. The clamping jaws are arranged at two ends of the adjusting frame through rotating shafts; the fixed machine body is provided with a sliding long hole in the vertical direction, and the rotating shaft of the clamping jaw is arranged in the sliding long hole in a sliding mode. According to the utility model, the clamping jaw is converted between inclination and horizontal by moving the adjusting frame up and down, so that the clamping jaw can smoothly enter and exit the tank body. The locking mechanism locks the positions of the fixed machine body and the adjusting frame, so that the clamping jaw is fixed at a horizontal position and limits the up-and-down movement of the chain stopper body.
Description
Technical Field
The utility model belongs to the field of scraper conveyor use, and particularly relates to a bidirectional fixed-length chain stopper.
Background
The following conditions can occur in the using process of the double-chain scraper conveying equipment in the underground coal mine: 1. under the three-level matched coal mining process of the hydraulic support, the scraper and the coal mining machine, the scraper has a pushing radian commonly called S-bend, and the bending can cause uneven stress of two chains; 2. the chain wheel shaft group of the machine head and the machine tail has a traction force on the chain in the running process, so that the scraper is driven to move forward along with the coal; 3. the chain can form certain aging and abrasion due to the friction action of the coal gangue; 4. the middle groove body of the conveyor can store coal in the gap after being newly installed, the stored coal falls off after being used for a period of time, and the whole length of the middle groove can be properly shortened. Because the chain can loosen after the chain is used for a period of time under the 4 conditions, the chain needs to be tightened in time. The existing mode is generally hydraulic chain tightening and brake disc chain tightening, and no important device, namely a chain stopper, is left out of any chain tightening mode. The general structure of the chain stopper is that a cylindrical locating pin is matched with wedge blocks at two ends and acts on a chain flat ring, the cylindrical locating pin is inserted into a hole corresponding to a middle plate, and the wedge blocks clamp the upper edge, so that the chain is fixed. The wedges at the two ends are generally in various structural forms for being clamped in the ledge. The chain stopper is heavy in weight, complex in operation, and capable of only unidirectionally clamping the chain to prevent the chain from moving reversely towards the tail of the machine head, and stated another way, if the chain moves reversely due to inertia or misoperation in the chain tightening process, the chain stopper cannot play a role in positioning, and safety accidents are easy to cause. The CN101792059B discloses a chain stopper and a coal conveying machine comprising the same, wherein two wedge blocks which can rotate to be clamped into the ledge or move out of the ledge are arranged at two ends of the chain stopper. The structure can adopt spring pins and the like to rotate the reset piece left and right. When the chain stopper receives unidirectional force, the wedge blocks can be clamped. When the chain stopper is subjected to force in the other direction, the wedge block is likely to rotate to be separated from the ledge groove, and the chain stopper is easy to separate from the chain when receiving up-and-down vibration force. CN207903315U discloses a portable chain stopper for a heavy scraper conveyor, which adopts a split structure. Each installation and removal takes a certain amount of time. A chain stopper which can stably move in both directions and is convenient to install is needed.
Disclosure of Invention
The utility model provides a bidirectional fixed-length chain stopper.
The object of the utility model is achieved in the following way: a bidirectional fixed chain stopper comprises a chain stopper body, wherein the bottom of the chain stopper body is provided with a groove for passing through a chain and a limiting piece for inserting a matching piece of the chain stopper; the chain stopper body comprises a fixed body provided with a groove and a limiting piece and an adjusting frame arranged on the fixed body in an up-and-down sliding way; the clamping jaws capable of swinging up and down are arranged at two ends of the adjusting frame, and a locking mechanism is arranged between the fixed machine body and the adjusting frame.
The clamping jaws are arranged at two ends of the adjusting frame through rotating shafts; the fixed machine body is provided with a sliding long hole in the vertical direction, and the rotating shaft of the clamping jaw is arranged in the sliding long hole in a sliding mode.
The locking mechanism comprises two adjusting holes arranged at two ends of the adjusting frame, and the adjusting holes are positioned above the rotating shaft; the position of the fixed machine body corresponding to the adjusting hole is the sliding long hole, and when the rotating shaft is positioned at the bottom of the sliding long hole, the fixed machine body is provided with a fixed shaft which penetrates through the upper end of the sliding long hole and the adjusting hole.
The jack catch is wedge-shaped, is close to one side of alignment jig sets up the messenger the dodge groove that the alignment jig passed through, set up on dodging the lateral wall in groove and make the axis of rotation passes through the rotation shaft hole.
Compared with the prior art, the utility model ensures that the clamping jaw is converted between inclination and horizontal by moving the adjusting frame up and down, thereby smoothly entering and exiting the tank body. The locking mechanism locks the positions of the fixed machine body and the adjusting frame, so that the clamping jaw is fixed at a horizontal position and limits the up-and-down movement of the chain stopper body. In the bidirectional movement process of the chain, the claw cannot move left and right or rotate, the whole chain stopper is stable in position, and the stable chain stopping effect can be achieved. The utility model belongs to a sliding connection structure, which is more convenient to assemble and disassemble than a split structure and is not easy to lose.
Drawings
FIG. 1 is a schematic diagram of the bi-directional chain stopper and channel engagement of the present utility model.
FIG. 2 is an overall schematic of the bi-directional chain stopper.
Fig. 3 is a schematic view (without a fixed shaft) of the bi-directional chain stopper in the falling process.
Fig. 4 is a schematic view of an adjusting bracket.
Fig. 5 is a schematic view of a stationary body.
Fig. 6 is a view of fig. 5 from above.
The device comprises a groove body 1, a fixed machine body 2, a limiting piece 20, a sliding long hole 21, a reinforcing rib 22, a groove 23, an adjusting frame 3, an adjusting hole 30, a rotating shaft 4, a fixed shaft 5, a clamping jaw 6 and an avoiding groove 60.
Detailed Description
In the present utility model, unless explicitly specified and defined otherwise, technical terms used in the present utility model should be construed in a general sense as understood by those skilled in the art to which the present utility model pertains. The terms "connected," "fixedly," "disposed" and the like are to be construed broadly and may be fixedly connected, detachably connected or integrally formed; can be directly connected or indirectly connected through an intermediate medium; either mechanically or electrically. Unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or in indirect contact via an intermediary. Moreover, a first feature being "above" or "over" or "upper" a second feature may be a first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under" or "beneath" or "under" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is level less than the second feature. Relational terms such as first, second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "height", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. used in the description are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element in question must have a particular orientation, be constructed and operated in a particular orientation.
The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. As shown in fig. 1 to 6, a bidirectional fixing stopper includes a stopper body having a groove 23 for passing a chain and a stopper 20 for inserting a lower and stopper mating member at the bottom thereof. The chain stopper matching piece is a part for placing a chain. The chain stopper body comprises a fixed machine body 2 provided with the groove 23 and the limiting piece 20, and an adjusting frame 3 arranged on the fixed machine body 2 in a vertical sliding way; the clamping claws 6 capable of swinging up and down are arranged at two ends of the adjusting frame 3, and a locking mechanism is arranged between the fixed machine body 2 and the adjusting frame 3. The claw 6 can swing up and down so as to incline into the middle groove or other groove body 1. The adjusting frame 3 is moved downwards to the lowest position and locked, the clamping jaw 6 is horizontally arranged below the upper edge of the groove body 1, and the upper edge of the groove body 1 is limited by the clamping jaw 6 to move upwards, so that the upper and lower directions of the chain stopper are limited. The limiting piece 20 is inserted into the middle plate of the groove body 1, so as to limit the front, back, left and right directions of the chain stopper body. The locking mechanism can have various structures as long as there is no relative movement between the fixed body 2 and the adjusting frame 3. The utility model enables the claw 6 to switch between tilting and horizontal by moving the adjusting frame 3 up and down, thereby smoothly entering and exiting the tank body 1. The positions of the fixing body 2 and the adjusting frame 3 are locked by a locking mechanism, so that the clamping jaw 6 is fixed at a horizontal position, and the up-and-down movement of the chain stopper body is limited. In the bidirectional movement process of the chain, the claw 6 does not move left and right or rotate, the whole chain stopper is stable in position, and the stable chain stopper can play a role in stopping the chain. The utility model belongs to a sliding connection structure, which is more convenient to assemble and disassemble than a split structure and is not easy to lose.
Wherein the clamping claws 6 are arranged at two ends of the adjusting frame 3 through rotating shafts 4; the fixed body 2 is provided with a vertically sliding long hole 21, and the rotation shaft 4 of the claw 6 is slidably disposed in the sliding long hole 21. The rotation shaft 4 may be a pin or the like. The claw 6 can also be arranged on the adjusting frame 3 in other ways by swinging up and down, such as being sleeved on the adjusting frame 3, etc. Besides the rotating shaft 4, the claw 6 can also be connected with a bulge, and one end of the bulge is arranged in the sliding hole. The convex position is only arranged at one end of the claw 6 close to the adjusting frame 3, and the claw 6 is ensured to be obliquely arranged when lifted, so that the width of the adjusting frame 3 is reduced.
Further, the locking mechanism comprises two adjusting holes 30 arranged at two ends of the adjusting frame 3, and the adjusting holes 30 are positioned above the rotating shaft 4; the position of the fixed body 2 corresponding to the adjusting hole 30 is the sliding long hole 21, and when the rotating shaft 4 is positioned at the bottom of the sliding long hole 21, the fixed body 2 is provided with the fixed shaft 5 passing through the upper end of the sliding long hole 21 and the adjusting hole 30. The fixed shaft 5 can be a pin shaft, one end of the pin shaft is a big head end, and the other end of the pin shaft can penetrate through a small pin shaft to play a role in axial limiting. The fixed shaft 5 can also be a part such as a bolt, a stud and the like, and the other end is limited by a nut. The adjustment aperture 30 may be a through-hole or a threaded hole. The position of the upper position of the adjusting frame 3 corresponding to the rotating shaft 4 is provided with a rotating hole, and the rotating shaft 4 passes through the rotating hole. The adjustment aperture 30 is located above the rotation aperture. When the rotation shaft 4 is located at the bottom of the sliding long hole 21, the adjusting hole 30 just corresponds to the upper end of the sliding long hole 21, and after passing through the fixing shaft 5, the adjusting frame 3 and the fixing hole are limited up and down. The locking mechanism can also be other fixing parts, so long as the fixing mechanism can play a role of fixing the adjusting frame 3 and the machine body 2.
Further, the claw 6 is wedge-shaped, a avoiding groove 60 is formed near one side of the adjusting frame 3, the adjusting frame 3 passes through the avoiding groove 60, and a rotating shaft 4 hole is formed in the side wall of the avoiding groove 60, and the rotating shaft 4 passes through the rotating shaft 4 hole. In addition, the adjusting frame 3 can be in a door frame shape, and a handle or a door frame-shaped upper frame is arranged on the adjusting frame 3 to be used as the handle. The handle and the adjusting frame can be integrally formed. The regulating frame 3 comprises an upper frame, a left frame and a right frame which are connected with the upper frame. Wherein the upper rim itself may be used as a handle. The upper frame can be provided with a lifting hole. The fixed machine body 2 comprises a vertical plate, two ends of the vertical plate are respectively provided with the limiting piece 20, the limiting piece 20 can be a cylindrical shaft, and a positioning hole corresponding to the limiting piece 20 is formed in the bottom plate of the groove body 1 or in the middle plate of the middle groove. Of course, the stopper 20 may have another shape and may be provided at another position. The bottom of the riser is provided with two grooves 23 which can be used to pass through and block the chain and to block the movement of the chain. The upper portion of the shape of the groove 23 may be a circular arc-shaped long groove. Both the recess 23 and the stop 20 are prior art and will not be described in detail. C-shaped grooves can be formed in two ends of the vertical plate, and the two vertical plates of the C-shaped grooves are symmetrically arranged and are provided with the sliding long holes 21. Reinforcing ribs 22 can be arranged on the front side and the rear side of the vertical plate.
The specific implementation method comprises the following steps: the upper end of the adjusting frame 3 is hung to put the whole bidirectional chain stopper downwards, and the claw 6 enters the groove body 1 of the middle groove in an inclined state. After entering the groove body 1, the limiting piece 20 on the fixed machine body 2 is aligned with the positioning hole on the middle plate and is put in. The adjusting frame 3 is moved downwards to the lowest position, at the moment, the rotating shaft 4 drives the clamping jaw 6 to move downwards to the lowest position, the clamping jaw 6 is horizontal or approximately horizontal, the clamping jaw 6 in a wedge block shape enters the lower part of the upper edge of the groove body 1, the adjusting hole 30 just corresponds to the upper end of the sliding long hole 21, and the adjusting frame 3 and the fixing hole are limited up and down after passing through the fixing shaft 5. At the moment, the positioning is realized in all six directions of up, down, front, back, left and right. Therefore, when the motor is reversed, the scraper chain cannot be separated under the condition of rebound of inertia force, the bidirectional positioning function can be achieved, and the safety is improved.
Any combination of the features of the above-described embodiments is possible, and the combination of the features should be regarded as the scope of the present description as long as there is no contradiction. The technical proposal, equivalent substitution or change, and several changes and improvements made according to the utility model are considered to be the protection scope of the utility model without departing from the general conception of the utility model.
Claims (4)
1. A bidirectional fixed chain stopper comprises a chain stopper body, wherein the bottom of the chain stopper body is provided with a groove for passing through a chain and a limiting piece for inserting a matching piece of the chain stopper; the method is characterized in that: the chain stopper body comprises a fixed body provided with a groove and a limiting piece and an adjusting frame arranged on the fixed body in an up-and-down sliding way; the clamping jaws capable of swinging up and down are arranged at two ends of the adjusting frame, and a locking mechanism is arranged between the fixed machine body and the adjusting frame.
2. The bi-directional fixed chain stopper according to claim 1, wherein: the clamping jaws are arranged at two ends of the adjusting frame through rotating shafts; the fixed machine body is provided with a sliding long hole in the vertical direction, and the rotating shaft of the clamping jaw is arranged in the sliding long hole in a sliding mode.
3. A bi-directional fixed chain stopper according to claim 2 wherein: the locking mechanism comprises two adjusting holes arranged at two ends of the adjusting frame, and the adjusting holes are positioned above the rotating shaft; the position of the fixed machine body corresponding to the adjusting hole is the sliding long hole, and when the rotating shaft is positioned at the bottom of the sliding long hole, the fixed machine body is provided with a fixed shaft which penetrates through the upper end of the sliding long hole and the adjusting hole.
4. A bi-directional fixed chain stopper according to any one of claims 2-3 wherein: the jack catch is wedge-shaped, is close to one side of alignment jig sets up the messenger the dodge groove that the alignment jig passed through, set up on dodging the lateral wall in groove and make the axis of rotation passes through the rotation shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323237523.1U CN221053749U (en) | 2023-11-29 | 2023-11-29 | Bidirectional fixed chain stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323237523.1U CN221053749U (en) | 2023-11-29 | 2023-11-29 | Bidirectional fixed chain stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221053749U true CN221053749U (en) | 2024-05-31 |
Family
ID=91225106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323237523.1U Active CN221053749U (en) | 2023-11-29 | 2023-11-29 | Bidirectional fixed chain stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221053749U (en) |
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2023
- 2023-11-29 CN CN202323237523.1U patent/CN221053749U/en active Active
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